Abstract:
The present invention is a combination walker and wheelchair which enables a person with back problems and other physical disabilities to walk from one location to another without assistance from a third person with correct walking posture and arm movement, thereby allowing long walks versus crutches of current design and also enables the person to comfortably sit in the chair in spite of the person&#39;s back pains. The ergonomically friendly design includes a high level transverse bar which enables the invention to be pushed by a person&#39;s hands, arms and chest or enables the person to lean against the invention; a foldable main structural frame; a detachable back support and seat; and rotatable wide armrests made with compressive materials thereby allowing the chair structure the maximum width to get through standard doors and still have even wider comfortable armrests. Therefore, the present invention can be used as a walker, a wheelchair, a transportation chair, a golf trolley, and a spectator chair.

Description:
BACKGROUND OF THE INVENTION  
     1. Field of the Invention 
     The present invention relates to the field of physical assistance apparatus to assist people who have back problems and other physical disabilities to enable them to walk better, to facilitate more comfortable seating, and to enable the person to move form one location to another without assistance from a third party. 
     2. Description of the Prior Art 
     In general, devices to assist a person with disabilities to walk from one location to another or to support the person in a seated condition are known in the prior art. The following 21 patents and published patent applications are the closest prior art references to the present invention unique walking chair. 
     1. U.S. Pat. No. 2,312,602 issued to Judson O. Taylor on Mar. 2, 1943 for “Walking And Rolling Chair” (hereafter the “Taylor Patent”); 
     2. U.S. Pat. No. 5,058,912 issued to Mary M. Harroun on Oct. 22, 1991 for “Combination Chair/Walker” (hereafter the “&#39;912 Harroun Patent”); 
     3. U.S. Pat. No. 5,112,069 issued to Richard E. Aldus et al. on May 12, 1992 for “Travel-Air Chair” (hereafter the “Aldus Patent”); 
     4. U.S. Design Pat. Des. 326,250 issued to Beverly J. Oliver on May 19, 1992 for “Combined Wheel Chair And Walker” (hereafter the “&#39;250 Oliver Design Patent); 
     5. U.S. Pat. No. 5,224,731 issued to Candace L. Johnson on Jul. 6, 1993 for “Combination Wheel Chair And Walker” (hereafter the “&#39;731 Johnson Patent”); 
     6. U.S. Pat. No. 5,320,122 issued to Julius H. Jacobson, II et al. on Jun. 14, 1994 for “Combined Walker And Wheelchair” (hereafter the “Jacobson Patent”); 
     7. U.S. Design Pat. No. 365,785 issued to James O. Sawyer on Jan. 2, 1996 for “Walker” (hereafter the “Sawyer Design Patent”); 
     8. U.S. Pat. No. 5,558,358 issued to Candace L. Johnson on Sep. 24, 1996 for “Combination Wheelchair And Walker” (hereafter the “&#39;358 Johnson Patent”); 
     9. U.S. Pat. No. 5,716,063 issued to Brian Peter Doyle et al. on Feb. 10, 1998 for “Walking Aid” (hereafter the “Doyle Patent”); 
     10. U.S. Pat. No. 5,741,020 issued to Mary M. Harroun on Apr. 21, 1998 for “Collapsable Combination Chair Walker” (hereafter the “&#39;020 Harroun Patent”); 
     11. U.S. Pat. No. 6,338,493 issued to Eli Wohlgemuth et al. on Jan. 15, 2002 for “Walker Chair” (hereafter the “Wohlgemuth Patent”); 
     12. U.S. Pat. No. 6,340,168 issued to Norman Woleen on Jan. 22, 2002 for “Convertible Chair And Walker Assembly” (hereafter the “Woleen Patent”); 
     13. U.S. Pat. No. 6,494,469 issued to Yasunori Hara et al. on Dec. 17, 2002 for “Rolling Walker” (hereafter the “Hara Patent”); 
     14. U.S. patent application Publication No. 2003/0006578 issued to Mauricio Melgarejo et al. published on Jan. 9, 2003 for “Size-Adjustable Laterally-Folding Tilting-Frame Wheelchair” (hereafter the “Melgarejo Published Patent Application”); 
     15. U.S. Pat. No. 6,659,478 issued to Bjarki Hallgrimsson et al. on Dec. 9, 2003 for “Combination Walker And Transport Chair” (hereafter the “Hallgrimsson Patent”); 
     16. U.S. patent application Publication No. 2005/0057021 issued to Etsuo Miyoshi published on Mar. 17, 2005 for “Wheelchair Useable As Walking Stick” (hereafter the “Miyoshi Published Patent Application”); 
     17. U.S. Pat. No. 6,921,101 issued to Givi Lauren et al. on Jul. 26, 2005 for “Combined Wheelchair, Walker, And Sitting Chair” (hereafter the “Lauren Patent”); 
     18. European Patent Application No. EP 1,092,411 issued to Yasunori Hara et al. on Apr. 18, 2001 for “Rolling Walker” (hereafter the “Hara European Patent Application”); 
     19. European Patent Application No. EP 1,516,609 issued to Etsuo Miyoshi on Mar. 23, 2005 for “Wheelchair Useable As Walking Stick” (hereafter the “Miyoshi European Patent Application”); 
     20. PCT Published Patent Application No. WO 95/31169 issued to Jimmy Grotner et al. published on Nov. 23, 1995 for “Combination Wheelchair And Walker” (hereafter the “Grotner PCT Published Patent Application”); 
     21. U.S. Published patent application 2005/0156395 A1 for a “Rolling Walker With Arm Rest Platforms” applied for by David L. Bohn and which was published on Jul 21, 2005. 
     The Taylor Patent issued in 1943 discloses a walker. It is essentially a conventional walker which does have a wide handlebar (55) but it is not positioned so that it would be viable to use to push the chair with a person&#39;s chest as a walker. 
     The &#39;912 Harroun Patent is a “Combination Chair And Walker” but the walking portion is in the front of a user and the user is walking by pushing the chair between the seat and the front pull where the user is able to push the chair and walk. The user can also sit in the chair and move it with the user&#39;s feet. 
     The Aldus Patent discloses the concept of having a “Travel-Air Chair” which can be more easily disassembled and stowed. The backrest does not function as a device to enable a user to push the chair with the user&#39;s chest. 
     The &#39;250 Oliver Design Patent is a design patent which protects the shape of this particular chair. 
     The &#39;731 Johnson Patent discloses a “Combination Wheel Chair And Walker”. It functions as a walker in that someone can walk behind the device and there are hand grips (37 and 38) by which the chair can be stopped either by someone pushing a person seated in the chair or by the person themselves using the chair as a walker. However, a bar (25) across the back is not wide enough so that the bar does not really function as a leaning bar. The patent also discloses arm bars but they are not padded and they are not adjustable and rotatable. 
     The Jacobson Patent discloses a “Combined Walker And Wheelchair”. In this patent the portion that is used as a walker is the arm bar (30) which has adjustable supporting members (32 and 28) so that the height can be adjusted to the person&#39;s desired height. There is also the seat (40) so the person can sit on it and presumably be pulled from the front or pushed from the back. 
     The Sawyer Patent is also a design patent that protects the shape of this specific walker. 
     The &#39;358 Johnson Patent is again for a “Combination Wheelchair And Walker”. In this case what is shown is the widened arm bars (31) but the are non-rotatable. There is a backrest (44) but it does not function as a leaning bar to push the chair. 
     The Doyle Patent involves a “Walking Aid” in the simply standard walker by today&#39;s standards with a seat and arms to push the person. 
     The &#39;020 Harroun Patent is similar to the previously discussed Harroun Patent and is best illustrated to show that a user essentially is between the seat and the front bar (45) and can use the wheelchair as a walker to basically push the chair forward. 
     The Wohlgemuth Patent discloses a walker and the bar (80) in the back is designed for a person to push someone seated within the chair. From its positioning relative to the seat, it is unlikely that it could function as a device where a user can lean his shoulder against it and use it as walker. 
     The Woleen Patent discloses a “Convertible Chair and Walker Assembly” which has the ability to be converted from a chair to a walker. 
     The Hara Patent discloses a “Rolling Walker”, which can be used as a seat and pushed the other way as a walking chair. 
     The Melgarejo Published Patent Application discloses a wheelchair with a backrest and handgrips which enable the chair to be pushed. The chair can also be folded up for transportation. 
     The Hallgrimsson Patent is a “Combination Walker and Transport Chair”. It discloses a seat for a person to sit on and horizontal hand rails to facilitate pushing the person. 
     The Miyoshi Published Patent Application discloses a “Wheelchair Useable as a Walking Stick”, wherein the wheelchair can be compressed together so that the grip (5) can be used as a walking stick. 
     The Lauren Patent is a “Combined Wheelchair, Walker, and Sitting Chair”. The handle elements (180-190) are pivotal between a used position shown in  FIG. 1 , having a second top brace element (116) located between the distal end (194) of the second handle element (190) and the proximal end (192) of the second handle element (190) and a stored position, shown in  FIG. 2 . However, in use the handle element is horizontally oriented. 
     The European Patent Application is for the “Rolling Walker” and is an application which is the same as the previously discussed Hara Patent. 
     The Miyoshi European Patent is again the same as the previously discussed Miyoshi Patent and is able to convert the wheelchair into a walking stick. 
     The Grotner PCT Application is a “Combination Wheelchair and Walker”, which is configured so that it can be pushed by a person whereas in FIG. 14 it is converted so that the person can sit in the chair and be pushed. 
     The Bohn Published Patent Application is a “Rolling Walker with Arm Rest Platforms”, which shows fairly wide arm platforms (22) but they are not padded and they are not rotatable. The chair can be used as a walker but again only by gripping the vertical arms (28) and pushing the chair and with no ability to push with the shoulder. 
     In general, the prior art inventions are substantially the same because they are primarily crutches with poorly designed seats and only a single bar for a seat back. 
     There is a significant need for an improved apparatus which enables a person with back problems or other physical disabilities to walk from one location to another and to comfortably sit in a chair in spite of physical problems such as back pain. 
     SUMMARY OF THE INVENTION  
     The present invention relates generally to a combination walker and wheelchair which is sometimes referred to in the text as a walking chair, which enables a person with back problems and other physical disabilities to walk from one location to another without assistance from a third person and also enables the person to comfortably sit in the chair in spite of the person&#39;s back pains. The ergonomically friendly design of the present invention includes a high level transverse bar which enables the invention to be pushed by a person&#39;s chest or enables the person to lean against the invention; a foldable main structural frame; a detachable back support and seat; and rotatable wide armrests made with compressive materials. Therefore, the present invention can be used as a walker, a wheel chair, a transportation chair, a golf club trolley, and a spectator chair. 
     It has been discovered, according to the present invention, that if the present invention combination walker and chair includes a main frame having a support structure with a right and left fold assembly which can be folded, then the present invention can be folded up when not in use to enable it to be easily stored, shipped, and carried. 
     It is also been discovered, according to the present invention, that if the combination walker and chair includes a leaning bar which is positionable at the level of a user&#39;s chest, and if the leaning bar is supported by right and left rotatable shoulder arms which are respectively locked to the right and left support sections of the main frame of the invention, then if the rear wheels of the present invention are in the locked position, a person can comfortably lean against the back of the leaning bar to enjoy a rest while standing at the same time. Also, if the rear wheels are in the unlocked condition, then the person can use the invention as a walker by pushing against the leaning bar with the person&#39;s chest as the person walks form one location to another. 
     It has further discovered, according to the present invention, that if the invention includes a multiplicity of ski-pole type gripping members or Nordic walking pole type griping members positioned at an elevated location on the back of the chair, then the chair can also serve as a walker which can be adjusted to the person&#39;s height and hand grip to facilitate the person walking from one location to another. 
     It has additionally been discovered, according to the present invention, that if the chair portion comprises a removable seat and a removable backrest, then the chair can be more easily disassembled and then reassembled. 
     It has further been discovered, according to the present invention, that if the chair portion includes wide armrests which are made with compressive materials, then the wide armrests facilitate more comfortable seating in the chair, especially for a larger person who has back pain problems. 
     It has also been discovered, according to the present invention, that if the wide armrests are rotatable from their in use horizontal position to a vertical orientation, then the present invention can be more easily passed through a door opening or more narrow hallway for transportation of the chair assembly from one location to another. 
     It has additionally been discovered, according to the present invention, that if the chair assembly includes a pair of front and shoulder glides respectively positioned on the outer portion of the left and right side of the chair assembly, and chair assembly can be more easily folded up to provide a uniform smooth sliding surface to slide the chair assembly into a vehicle or into a cargo area of an airplane or over a floor. 
     It has also been discovered, according to the present invention, that if the height of the front and rear wheels of the chair assembly are adjustable, then the overall height and cant of the chair can be adjusted to accommodate the individual person when that person is seated in the chair assembly. One way to adjust the height is to insert a multiplicity of washers or spacers on the chair below the seat supports. 
     It has further been discovered, according to the present invention, that if the chair assembly includes upper brakes and lower brakes, then the movement of the chair assembly can be carefully and efficiently controlled by braking different portions of the chair assembly as needed. The purpose of the lower brake sis to enable the person to cause the chair to stop while the person is seated in the chair. The upper brakes serve a dual function. They can brake the chair in ordinary horizontal movement and in the event the chair is rolling down a hill or downward grade on a street, the brakes can be pre-pumped to act like ABS brakes to prevent the chair from rapidly rolling down a hill. 
     It is therefore a primary object of the present invention to provide a combination assembly which includes the features of hiking sticks, a walker, a wheelchair and a seating lawn chair and also functions as a transportation chair and golf club trolley. 
     It is also a key object of the present invention to provide a chair assembly for people who have a bad back and can&#39;t sit on a hard surface such as a typical restaurant chair, sports stadium seat, or even padded theater seats so that the person can comfortably sit for extended periods of time without suffering back pain. In addition, rugged construction of the chair assembly enables it to be used at a park, golf course or other outdoor location in addition to use at home or in another indoor facility such as a restaurant. 
     It is also an object of the present invention to provide a walker and wheelchair assembly which is easily transportable and can be rolled through a standard 30 inch door. 
     It is an additional object of the present invention to provide a walker and wheelchair assembly which includes wide compressible armrests to facilitate the user&#39;s comfort when seated and which armrests are rotatable so that they can be rotated to a vertical orientation to facilitate moving the assembly through a tight space. The wide compressible armrests provide up to five (5) inches of additional width to the chair so that the user&#39;s arms can rest comfortably. The armrests are constructed of foam and fabric and are attached to the arm supports in a manner which enables them to be turned in or compressed to enable the assembly to be passed through a doorway, into the back of a car, or through other tight spots. 
     It is another object of the present invention to provide a walker and wheel chair assembly which can be disassembled into two or three pieces so that the entire chair can be slipped into the back seat of a family car and removed and reassembled just as easily. 
     It is another key object of the present invention to provide a movable chair assembly which is comfortable for big and tall people as well as normal sized people by providing an assembly where handle height and seat cant are both adjustable. 
     In general, walkers and rollators are basically crutches which are designed to provide a lot of stability for a person over a short distance but are very uncomfortable and ergonomically unsuited to be used to walk great distances. It has further been discovered, according to the present invention, that if the assembly includes arms and grips like trekking poles, then the user can grab on and hold the assembly in a variety of different ways to be used as a walker. The design facilitates walking on uneven terrain as well as flat surfaces. In addition the nordic walking or trekking pole grips, the shoulder rest (leaning bar), chair rails and stabilizing bars enable a user to change hand positions frequently if the person&#39;s shoulders, upper back and hands become uncomfortable in one position. 
     It is additionally an object of the present invention to provide the assembly with a leaning bar which fits between the handles and is positioned to be at the chest height of a user. With this accessory, the walker and wheelchair assembly also functions as a standing desk or bar. The person can lean on the bar while standing which is very comfortable and also relieves lower back pain. With the rear wheels positioned in a vertical orientation relative to the leaning bar, the user can also rest one foot on a wheel while leaning against the leaning bar which is generally recognized as a preferred ergonomic position. The leaning bar and handles are positioned even with the back of the rear wheels as opposed to other walkers where the center of gravity is more forward—providing more crutch-support but less mobility. However, the chair still provides plenty of support when leaning on the leaning bar because in doing so the user is actually pushing forward slightly against locked wheels thereby shifting the center of gravity when leaning to a portion of the chair which is firm and stable. In is therefore another discovery that because the user is pushing forward slightly even when leaning heavily, the chair moves forward easily, thus promoting prolonged walking over all types of terrain. Pushing straight down, as with traditional walkers and rollators, tends to force a stop after each step thus interrupting and discouraging a regular stride and tiring, upper back pain, and arm fatigue from prolonged use. 
     It is another object of the present invention to provide upper brake handles to be used when the assembly is being pushed while the user is standing behind it and also lower brake assemblies to enable a person seated in the assembly to stop the movement of the chair. 
     Existing rollators are all pushed from the front and have only a single position for the handholds which is ergonomic only if the user is centered between the handles with the arms more or less straight down. None boast multiple hand positions or have a bar to lean on with upper arms while standing. This is similar to trekking poles that also allow the user to change positions. It is also similar to racing bicycles that may have handlebars with a tri-bar accessory or detachable and adjustable vertical handles. Because of the above advantages as discussed in the discoveries and objects of the present invention, the present invention walker and wheelchair can be pushed from the back while the user is walking and is therefore much easier to roll thereby facilitating ease of walking. Multiple hand holds allow the user to change among a variety of ergonomic positions as the walk progresses. In addition, the rear wheel can be used to rest one&#39;s foot off the ground while resting and this is a significant ergonomic improvement. The handle height and the angle of the handle are adjustable. 
     It is an additional object of the present invention to provide an extra-long space between the handles and the first cross-member, thereby providing extra room for the leg to swing forward and take a comfortable stride without hitting shins or feet. It is also an object of the present invention to provide even more room because the arms are in a natural bent position gripping a vertical handle in front of the user as opposed to walkers and rollators where one is leaning on arms that are more or less straight down during part of the stride. 
     It is another object of the present invention to provide a glide on the back or sides of the assembly to allow easy sliding for stowage on its back in addition to easy disassembly into two or three pieces for easy stowage and reassembly. 
     It is also an object of the present invention to provide a walker and wheelchair assembly which can also function as a golf bag to hold golf clubs and also function as a trolley for transportation on a golf course. 
     It is a further object of the present invention to provide a rollable and portable walker and wheelchair assembly to accommodate a large person such as a football player, basketball player, sumo wrestler, weightlifter and other large people. 
     It is another object of the present invention to provide a spectator chair because many public events require considerable walking from the parking lot to the viewing area. It is a further advantage of the present invention to enable non-wheeled chairs to nest in the present invention so that a number of chairs can be carried to a location at one time. The assembly also has additional space to carry food and supplies. 
     It is also an object of the present invention to provide a wheelchair with comfortable footrests so that a second person can push the chair while a person is seated in it. The multiple handholds also will make pushing easier relative to normal wheelchair handles. 
     Further novel features and other objects of the present invention will become apparent from the following detailed description, discussion and the appended claims, taken in conjunction with the drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS  
       Referring particularly to the drawings for the purpose of illustration only and not limitation, there is illustrated: 
         FIG. 1  is a front view of the present invention walking chair, wherein two foldable shoulder arms of the walking chair are at their elevated positions; 
         FIG. 2  is a bottom plan view of the present invention walking chair; 
         FIG. 3A  is a right side perspective view of the present invention walking, wherein two foldable shoulder arms of the walking chair are at their elevated positions; 
         FIG. 3B  is a right side perspective view of the present invention walking chair, wherein two foldable shoulder arms of the walking chair are in their folded positions; 
         FIG. 4  is a rear elevational view of the present invention walking chair, wherein two foldable shoulder arms of the walking chair are at their elevated position; 
         FIG. 5  is a top plan view of the present invention walking chair, wherein two foldable shoulder arms of the walking chair are at their elevated positions; 
         FIG. 6  is a perspective view of the present invention walking chair, wherein two foldable shoulder arms are at their elevated positions and a leaning bar is not attached; 
         FIG. 7  is a side view of the right side support structure of the present invention walking chair illustrating the inner side structure wherein the foldable arm is in the folded position; 
         FIG. 7A  is an enlarged exploded perspective view a rear wheel support of the rear wheel assembly shown in  FIG. 7 ; 
         FIG. 8A  is a perspective top view of the foldable fold assembly, wherein the fold assembly is in the extended in use condition; 
         FIG. 8B  is an enlarged exploded perspective view to illustrate the connection among a handle unit, a right half of the fold frame, and a left half of the fold frame of the fold assembly shown in  FIG. 8A ; 
         FIG. 8C  is a perspective top view of the foldable fold assembly, wherein the fold assembly is in the folded condition; 
         FIG. 9  is a rear perspective view of the present invention walking chair which illustrates the chair in use as a golf club trolley, wherein two foldable shoulder arms of the walking chair are at their elevated positions; 
         FIG. 10  is a perspective view to show the structure of a detachable leaning bar; 
         FIG. 11A  is a perspective view to show the structure of a foldable high bar, wherein the high bar is unfolded; 
         FIG. 11B  is a top view to show the mechanism to fold the high bar, wherein the high bar is folded; 
         FIG. 12  is a perspective rear view to illustrate the structure of a back support of the present invention walking chair; 
         FIG. 13  is a perspective view to illustrated the structure of a seat of the present invention present invention walking chair; 
         FIG. 14A  is a cross sectional view of a wide armrest of the present invention walking chair, wherein the wide armrest is placed horizontally for resting a person&#39;s arm when the person is seating in the chair; and 
         FIG. 14B  is a cross section of a wide armrest of the walking chair of the present invention, wherein the wide armrest is placed vertically for reducing the width of the chair so that the chair can easily to pass through a narrow entrance including gates and doors. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS  
     Although specific embodiments of the present invention will now be described with reference to the drawings, it should be understood that such embodiments are by way of example only and merely illustrative of but a small number of the many possible specific embodiments which can represent applications of the principles of the present invention. Various changes and modifications obvious to one skilled in the art to which the present invention pertains are deemed to be within the spirit, scope and contemplation of the present invention as further defined in the appended claims. 
     Referring to  FIGS. 1 through 9 , there is illustrated present invention walking chair  1 , which is user friendly and of ergonomic design which contains a foldable main structural frame, detachable back support and seat, leaning bar, and rotatable wide armrests made with compressive materials, and can be used for various applications including but not limited to a walker, a wheel chair, a transporting golf club trolley, and a spectator chair. 
     Referring to  FIGS. 1 and 4  there is illustrated the present invention walk chair  1 , comprising a supportive structure including a right side support  10 R, a left side support  10 L, and structural members between the right and left side support including a leaning bar  20 M, a fold assembly  40 M, a high bar  30 M, a back support  60 M, and a seat  80 M, wherein the right side support  10 R is a mirror image of the left side support  10 L. 
     Referring to  FIGS. 1 and 3A  there is illustrated the detailed structural components of the right support  10 R of the present invention walking chair  1 , wherein a right side foldable elongated shoulder arm  5 R is at its elevated position. 
     As illustrated in  FIG. 3A , the right side support  10 R which is shown from a perspective view comprises three main structural components including a “y” shaped part  1 R, an “L” shaped part  2 R, and a right shoulder arm  5 R. The “L” shaped part  2 R is further shown attached to a two-wheel assembly system comprising a right front wheel assembly  7 R and a right rear wheel assembly  8 R. These three main structural components are also illustrated in  FIG. 7  from an inner side view for a complementary description of the right support  10 R. Referring to  FIGS. 1 and 3A , there is illustrated the “y” shaped part  1 R, the “L” shaped part  2 R, and the elongated shoulder arm  5 R being planar and having an appropriate thickness in order to enable them to have sufficient mechanical strength for their applications. 
     As illustrated in  FIG. 3A , the two-wheel assembly system is attached to the bottom of the “L” shaped part  2 R. A right front wheel assembly  7 R comprises a wheel  7 R 1 , and a wheel support  7 R 2 . The wheel support  7 R 2  is an inverted “U” shaped structure as further illustrated in  FIG. 1 , wherein two symmetric bottom open ends  103  of the support  7 R 2  are permanently fixed with an axis  7 R 3  wherein the axis penetrates through a rotational center of the wheel  7 R 1 . Therefore the wheel  7 R 1  is smoothly rotatable such as a conventional rotatable caster, wherein the wheel rotational plane is perpendicular to the ground. Further referring to  FIG. 3A , there is illustrated the upper end  102  of the wheel support  7 R 2  connects to a front bottom corner  101  of the “L” shaped part  2 R. It will be appreciated that the connection for the wheel support  7 R 2  to the front bottom corner  101  is through a mechanical mechanism wherein the wheel support  7 R 2  is smoothly rotatable around a symmetric axis of its inverted “U” shaped structure. With said mechanical mechanism, the right front wheel  7 R 1  is rotatable in any direction on the ground. Also illustrated in  FIG. 3A  is the right rear wheel assembly  8 R which is connected to the “L” shaped part  2 R. However, as discussed below, the rear wheel is only rotatable in one direction. The front wheels can rotate 360 degrees. By way of example only, the wheels can be eight (8) inches in diameter and one and one-half (1½) inches wide. 
     Referring to  FIG. 7 , there is illustrated the right rear wheel assembly  8 R comprising a wheel  8 R 1  and wheel support  8 R 2  connected to a rear bottom corner  104  of the “L” shaped part  2 R. Referring to  FIG. 7A , the right rear wheel support  8 R 2  is composed to two parts: a first part  8 R 21  which is an elongated cuboid with an upper end  105 , a bottom end  106 , and an elongated rectangular left side  112 , wherein a thread hole  8 R 25  on the vertical left side  112  penetrates a center of the planar bar to receive a screw  8 R 26 ; and a second part  8 R 22  which has the detailed features illustrated in  FIG. 7A . For the second part  8 R 22 , a hollow bar connects an inverted “U” shaped structure. The hollow bar is a hollow cuboid comprising an elongated rectangular left side  113  with a top end  107  and a bottom end  108 . The inverted “U” shaped structure has an inverted “U” shaped longitudinal cross section with one top end and two identical bottom ends  111 . The hollow bar at the bottom end  108  longitudinally connects to the top end of the inverted “U” shaped structure, so that a center plane of the hollow bar which is parallel to the left side plane  113  is aligned to a symmetric plane of the inverted “U” shaped structure and is perpendicular to the inverted “U” shaped cross section. Said the elongated planar bar  8 R 21  matches the elongated hollow cuboid of the second part  8 R 22 , wherein the bar  8 R 21  is slidably inserted along its longitudinal direction into the hollow cuboid of the second part  8 R 22  by inserting second end  106  into the elongated cuboid until the first end  105  of the bar  8 R 21  is adjacent top end  107 . Further, referring to  FIG. 7A , there is illustrated an elongated slot  8 R 27  having an upper end  109  and a bottom end  110  located along a longitudinal central line on the left side  113  of the hollow cuboid of the second part  8 R 22 , wherein the position of the slot  8 R 27  matches the hole  8 R 25  of the first bar  8 R 21 . Thus the screw  8 R 26  is able to lock the elongated bar  8 R 21  at various heights between the upper end  109  and the bottom end  110  of the slot  8 R 27  by tightening the screw, which results in a variation of height of the upper end  105  of the elongated planar bar  8 R 21  relative to the second part  8 R 22  of the wheel support  8 R 2 . Referring to  FIGS. 7 and 7A , there is illustrated the elongated planar bar  8 R 21  connected to the second part  8 R 22 , wherein the screw  8 R 26  is positioned at an appropriate location in the elongated slot  8 R 27  on the hollow structure of second part  8 R 22 . As illustrated, the upper end  105  of the first part  8 R 21  of the wheel support  8 R 2  is connected to the right rear bottom corner  104  of the right side “L” shaped part  2 R. Therefore, an adjustment in the height of the upper end  105  varies the height of the rear bottom end  104  of the “L” shaped part  2 R of the right side support  10 R. Therefore, the right rear wheel support  8 R 2  is able to adjust the level of the seat  80 M of the present invention walking chair  1  to adjust to the body height of the user, which is one of the ergonomic advantages of the present invention. As further illustrated in  FIG. 7A , a wheel  8 R 1  is connected to the bottom end  111  of the inverted “U” shaped structure of the second part  8 R 22  of the wheel support  8 R 2  through an axle  8 R 28 . In this configuration, the wheel  8 R 1  is able to rotate only in the forward and back direction which is parallel to the plane of the right side support  10 R. 
     It is also possible to change the height and cant of the chair by adding washers on the back. By way of example, the washers can be one-eighth inch (⅛) thick. 
     Referring  FIGS. 3A and 7A , there is illustrated the “y”shaped part  1 R connected to the “L” shaped part  2 R through two groups of screws and nuts. As illustrated in  FIG. 3A , the “y” shaped part  1 R having a left top end  120 , a right top end  121  and a bottom end  122 , is positioned onto the “L” shaped part  2 R, wherein the slightly convex body of the “y” shaped part  1 R, defined by the right top end  121  and the bottom end  122 , has an ascending angle relative to the ground. The “y” shaped part  1 R is placed in this orientation, specifically wherein the left top end  120  of the part  1 R extends to be above the position of the wheel axle  8 R 28  of the wheel  8 R 1 , and the right top end  121  is attached onto a middle point  123  of the back of a vertical member of the “L” shaped part  2 R. It is understood that, the “y” shaped part  1 R can be alternatively placed at different ascending angles to achieve a desired user friendly and ergonomic condition. Referring to  FIGS. 3A and 7 , there is illustrated two groups of screws and nuts used to connect the “y” shaped part  1 R and the “L” shaped part  2 R. The first group of three screws  1 R 1 ,  1 R 2 , and  1 R 3  shown in series in  FIG. 3A  is located around a middle point  145  of a side branch of the “y” shaped part  1 R, wherein the middle point  145  is defined as the generally ventral location between the left top end  120  and a middle point  144  of the convex body of the part  1 R. The first group of three screws locks the “y” shaped part  1 R and the “L” shaped part  2 R together through respective nuts  1 R 11 ,  1 R 21 , and  1 R 31  screwed onto each of the three screws, as shown in  FIG. 7 . Similarly, a second group of three screws,  1 R 4 ,  1 R 5 , and  1 R 6  in series as illustrated in  FIG. 3A  are located on the “y” shaped part  1 R starting adjacent to the right top end  121  and ending at a position  147  where a front  126  of the vertical member of the “L” shaped part  2 R contacts the convex body of the “y” shaped part  1 R. Further, the three screws and their respective nuts  1 R 41 ,  1 R 51  and  1 R 61  as illustrated in  FIG. 7  lock the parts  1 R and  2 R together. 
     Referring to  FIGS. 3A and 7 , there is illustrated a connection mechanism between the right side “L” shaped part  2 R, and a right side elongated shoulder arm  5 R which is illustrated in the elevated position. As shown in  FIG. 3A , three holes  2 R 1 ,  2 R 2 , and  2 R 3  in series perpendicularly penetrate through the right side  124  of the “L” shaped part  2 R along a left edge  131  of the vertical member from a top position  130  of the “L” shaped part. Two holes  2 R 1  and  2 R 3  have the same diameter and the diameters are smaller than the diameter of the hole  2 R 2 . As shown in  FIG. 7 , the right side elongated shoulder arm  5 R has two holes  5 R 2  and  5 R 1  in series which perpendicularly penetrate through it on a central line of the left side  129  of the elongated shoulder arm  5 R starting from the first end  132  on the arm, wherein the hole  5 R 1  is smaller than the hole  5 R 2 . The holes of  2 R 1 ,  2 R 3 , and  5 R 1  are all the same size, the holes  2 R 2  and  5 R 2  are the same size, and a distance from the hole  2 R 2  to  2 R 1  is the same as that from the hole  2 R 2  to that  2 R 3 , which is also the same distance from the hole  5 R 1  to  5 R 2 . Carrying such structural parameters, the present invention is able to use an axle  5 R 4  shown in  FIGS. 3A and 7  to join the right side elongated shoulder arm  5 R to the right side “L” shaped part  2 R, wherein the left side  125  of the “L” shaped part faces the right side  128  of the elongated right side shoulder arm  5 R. Therefore, the shoulder arm  5 R is rotatable around the rotational axle  5 R 4 , wherein said shoulder arm  5 R starting at a folded position shown in  FIG. 7  can be rotated counterclockwise to its vertically elevated position shown in  FIG. 3A , which results in hole  5 R 1  being above the hole  5 R 2 , and in line with hole  2 R 1  of the “L” shaped part  2 R. A pin  2 R 6  is inserted into the hole  2 R 1  of the “L” shaped part  2 R and extends to the hole  5 R 1  of the elongated arm  5 R as shown in  FIG. 3A . Thus the elongated arm  5 R is locked at its elevated position, which results in a rigid connection for the shoulder arm to the “L” shaped part. The “L” shaped part  2 R and elongated shoulder arm  5 R are built with sufficient mechanical strength to provide a strong and stabile structure when they are joined together. Similarly, the elongated arm  5 R is able to be locked at its folded position after the pin  2 R 6  is inserted into the hole of  2 R 3  of the “L” shaped part  2 R as extends to the hole  5 R 1  of the elongated shoulder arm  5 R as shown in  FIG. 7 . The foldable shoulder arm is thereby secured which is one of many features for a user friendly condition of the present invention walking chair  1 . 
     As also illustrated in  FIG. 7 , four additional support structures are located on the left side  125  of the “L” shaped part  2 R, which includes a seat support  2 R 5  located on an upper front  137  of a horizontal member, a first rotational support  2 R 7  at a bottom front  147 , a second rotational support  2 R 8  at a bottom middle rear position of  148 , and a seat and back support  2 R 9  at  149  located above a bottom rear corner  104  of the “L” shaped part  2 R. 
     Further referring to  FIG. 3A , there is illustrated an upper brake control unit comprised of a brake handle bar  6 R connected at the second end  133  of the elongated shoulder arm  5 R along the longitudinal direction of the arm. One unique feature of the present invention is that handle bar  6 R is designed in the shape of a trekking pole to facilitate walking long distances. The height and angle of the handle bar  6 R is also adjustable to facilitate holding it in a multiplicity of desirable ergonomic positions. Said brake handle bar  6 R has accessories including an upper brake handle  6 R 1  and an upper flexible brake cable  6 R 2  having a first end  134  and a second end  135 . As illustrated, the brake handle bar  6 R is further able to rotate around the longitudinal direction of the elongated shoulder arm  5 R, which is also one of many user friendly features of the present invention walking chair  1 . 
     As shown in  FIG. 7 , for the upper brake control unit, the upper brake cable  6 R 2  at the first end  134  links to the bottom position  136  of the upper brake handle  6 R 1 , and at the second end  135  of the cable links to a brake paddle  9 R 7 , wherein a brake unit including the brake paddle is placed into a chamber located immediately under the top of the inverted “U” shaped structure of the rear wheel support  8 R 2 . It is understood that the brake paddle used in the present invention is only one of several types of standard spring brake units which can be used with the present invention. For simplification in disclosure of the present invention, only the most relevant components of the brake paddle are mentioned. It will also be understood that the brake cable used in the present invention is a standard brake cable comprising a steel string residing in a flexible cylindrical hollow spring tube, wherein the spring is connected for  9 R 7  touches the wheel  8 R 1  to resist the wheel rotation after the brake paddle is pulled from the upper brake cable  6 R 2  so that it is stretched when a user presses the upper brake handle  6 R 1  towards to the handle bar  6 R. Reversibly, the brake paddle  9 R 7  moves away from the wheel  8 R 1  to free the wheel rotation after the upper brake cable  6 R 2  is released from the stretched condition when the upper brake handle  6 R 1  is returned to the normal position. 
     In addition to having the upper brake control unit, the present invention further comprises a bottom brake control unit to enhance the user friendly condition of the walking chair  1  by allowing the user to brake the chair while the user is in a seated position which is important when the chair is on a slanted surface. It also allows the user to lock the chair in position for added stability when pushing down on the arms to rise from the seat, and to minimize the chance of the chair “running out” from under the user. 
     Referring to  FIGS. 3A and 7 , the bottom brake control unit  9 R is illustrated and comprises a brake handle assembly  9 R 1 , wherein a first component which is a bottom brake handle  9 R 11  is shown in  FIG. 3A . Also illustrated is a bottom flexible brake cable  9 R 2  having the first end  140  and the second end  141 , two cable fasteners  9 R 4  and  9 R 5 , and the brake paddle  9 R 7  which is shared with the upper brake control unit. 
     Further referring to  FIGS. 3A and 7 , the bottom brake handle assembly  9 R 1  comprises a bottom brake handle  9 R 11  as shown in  FIG. 3A  having the first end  142  on the left and the second end  143  on the right, a working bar  9 R 13  shown in  FIG. 7  having the first end  144  to the right and the second end  145  to the left, and an axle  9 R 12   
     Further referring to  FIGS. 3A and 7 , the bottom brake handle assembly  9 R 1  comprises a bottom brake handle  9 R 11  as shown in  FIG. 3A  having the first end  142  on the left and the second end  143  on the right, a working bar  9 R 13  shown in  FIG. 7  having the first end  144  to the right and the second end  145  to the left, and an axle  9 R 12  perpendicularly linking the bottom brake handle  9 R 11  at the second end  143  and the working bar  9 R 13  at second end  145  through a hole  9 R 3  (not shown) on the bottom structure of the “L” shaped part  2 R, wherein said hole  9 R 3  is located at the middle  146  of the bottom of a horizontal member of the “L” shaped part  2 R. Therefore, the bottom brake handle assembly  9 R 1  has a shape similar to the symbol for pi when viewed from the top. Referring to  FIG. 7 , there is illustrated the mechanical connection of said bottom cable  9 R 2  to the working bar  9 R 13  of the bottom brake handle assembly  9 R 1 , wherein the first end  140  of the bottom cable  9 R 2  links the first end  144  of the working bar  9 R 13 , the bottom cable  9 R 2  is then attached to the left side  125  of the bottom horizontal member of the “L” shaped part  2 R through respective cable fasteners  9 R 4  and  9 R 5 , and the second end  141  of the bottom cable  9 R 2  links the brake paddle  9 R 7 . It is understood that the brake paddle  9 R 7  works in the following way. When the bottom brake control unit is activated, the brake paddle  9 R 7  touches the wheel  8 R 1  to resist the wheel rotation when the bottom cable  9 R 2  is stretched by the user from turning the first end  142  of the bottom brake handle  9 R 11  around the axle  9 R 12  180 degrees from left to right, which results in a synchronized half cycle rotation for the first end  144  of the working bar  9 R 13  from the right to left as shown in  FIG. 7 . The 180 degree rotation of the first end  144  of the working bar  9 R 13  around the axle  9 R 12  from the right to left causes stretching of the bottom cable  9 R 2  since the first end  140  of the cable  9 R 2  is linked at the first end  144  of the working bar  9 R 13 , wherein the first end  140  originally resides at the right side relative to the rotational axis  9 R 12 , corresponding to when the cable  9 R 2  is not stretched which corresponds to a non-working state of the brake paddle  9 R 7  so that the wheel  8 R 1  is free to rotate. Reversibly, the brake paddle  9 R 7  is able to release the wheel  8 R 1  if the bottom brake handle  9 R 11  has a half cycle rotation from the right to left around the rotational axle  9 R 12  to the original position. 
     Both brake handles operate one brake when inserted into a side location. 
     The above disclosures illustrate in detail the structure and mechanisms of functionality for the right side support  10 R of the present invention walking chair  1 , including the “y” and “L” shaped parts, the two-wheel assembly, the elongated shoulder arm, and the upper and bottom brake control units. It is understood that the left side support  10 L is a mirror image of the right side support  10 R, therefore the left side support  10 L comprises the same structure and mechanisms as those of the right side support  10 R as well as structural components which also are the mirror images of those of the right side support  10 . 
     Referring to  FIGS. 1 ,  2 ,  4 ,  8 A,  8 B, and  8 C, there is illustrated a fold assembly  40 M of the present invention walking chair  1 , wherein said fold assembly  40  M is a main structure to make the walking chair foldable. 
     Referring to  FIGS. 1 ,  2 , and  4 , there is illustrated the fold assembly  40 M from a respective front, bottom, and back view to show the fold assembly  40 M placed in the bottom of the chair  1  to rotatably connect the right and left side support  10 R and  10 L. Referring to  FIGS. 8A ,  8 B, and  8 C, there is illustrated detailed the structural composition of the fold assembly  40 M, wherein  FIG. 8A  discloses structural components of the fold assembly  40 M at an extended and in use position,  FIG. 8B  shows in detail connection of two symmetric frame units of the assembly, and  FIG. 8C  demonstrates the fold assembly at a folded position. 
     Referring to  FIG. 8A , the fold assembly  40 M comprises a fold assembly handle unit  40 M 1 , and a frame structure containing two symmetric units, a right frame unit  40 M 2  and left frame unit  40 M 3 . As illustrated, the fold assembly handle unit  40 M 1  is comprised of a handle  40 M 11 , a front bent rod  40 M 12  and a rear bent rod  40 M 13 , a front part  40 M 14 , and a rear part  40 M 15 . The handle  40 M 11  is an elongated cylinder having a front and rear central thread hole (not shown) along the central rotational axis of the cylinder respectively positioned at the front  150  and rear end  151  of the cylinder. The front bent rod  40 M 12  has a first threaded end  152  and second threaded end  153  which has three elongated sections located in the same plane including a first section  40 M 121  having the first threaded end  152  along the elongated direction 90 degrees to the left to connect a middle section  40 M 122  that follows the elongated direction 90 degrees to the right connecting to a third section  40 M 123  that ends from the second thread end  153 , wherein the second threaded end  153  has threads that match the thread hole located at the first end  150  of the handle  40 M 11 . It is understood that the rear bend rod  40 M 13  is a mirror image of the front bend rod  40  M 12 , comprising a first threaded end  154  and a second threaded end  155 , wherein the second thread end  155  has threads that match the thread hole at the second end  151  of the handle  40 M 11 . As further illustrated in  FIG. 8A , the front part  40 M 14  is an elongated structure with an inverted squared open bracket section of a “U” with a flat bottom shaped cross section, comprising a right end  156 , a left end  157  in the elongated direction, a top elongated rectangular surface  158 , a front  159  and rear  160  elongated rectangular surface. A hole  40 M 141  (not shown) perpendicularly penetrates through a center of the front  159  and rear  160  elongated rectangular surfaces. It is also understood that the rear part  40 M 15  is a mirror image to the front part  40 M 14 , comprising a top  161 , front  162 , and rear  163  elongated rectangular surface, a right  164  and left  165  end, and a hole  40 M 151  (cannot seen) perpendicularly penetrated through the center of the front  162  and the rear  163  elongated rectangular surface. 
     Referring to  FIG. 8A , there is illustration that the fold assembly handle unit  40 M 1  is assembled, which the handle  40 M 11  links to the front bent rod  40 M 12 , wherein the second screwed end  153  of the front bent rod  40 M 12  is screwed into the screw hole at the front end  150  of the handle  40 M 11 , which results in that the elongated direction of the handle  40 M 11  is perpendicular to the second section  40 M 122  of the front bent rod  40 M 12 , and the first end  152  of the front bent rod  40 M 12  perpendicularly penetrates the center hole  40 M 141  of the rear elongated rectangular surface  160  and continues through the same center hole of the front elongated rectangular surface  159  of the front part  40 M 14 , wherein the top elongated surface  158  is parallel to the surface defined with the first section  40 M 121  and the second section  40 M 122  of the front bent rod  40 M 12 . It is understood after a similar assembly, the rear brent rod  40 M 13  connects the handle  40 M 1 , wherein the second screwed end  155  is screwed into the screw hole at the rear end  151  of the handle  40 M 11 , and the first threaded end  154  of the rear bent rod  40 M 13  perpendicularly penetrates through a center hole  40 M 151  of the rear elongated rectangular surface  163  and continues through the same center hole of the front elongated rectangular surface  162  of the rear part  40 M 15 , wherein the top elongated surface  161  of the rear part  40 M 15  is parallel to the plane defined with the first section  40 M 121  and the second section  40 M 122  of the front bent rod  40 M 12 . It is further understood that after such assembly, the handle  40 M 11 , the front bent rod  40 M 12 , and the rear bent rod  40 M 13  are in the same plane. 
     Further referring to  FIG. 8A , there is illustrated the right frame unit  40 M 2  of the fold assembly  40 M, which is comprised of four strip bars comprising a front right strip bar  40 M 21  partially joined a front right middle strip bar  40 M 22  with a first set of screw  40 M 26 A and nut  40 M 26 B, and their mirror image parts, a rear right strip bar  40 M 23  partially joined a rear right middle strip bar  40 M 24  with a second set of screw  40 M 27 A and nut  40 M 27 B. One elongated rod  40 M 25  perpendicularly respectively joins front and rear strip bars with its front thread end  191  and rear thread end  192  of the rod, wherein the right frame unit  40 M 2  is rotationally joined the right side “L” shaped part  2 R through two rotational supports  2 R 7  and  2 R 8  located on the left side  125  of the  2 R. As illustrated, the front right strip bar  40 M 21  is an elongated rectangular planar strip with an appropriate thickness, having a first hole  40 M 211  at a right end  180 , a second hole  40 M 212  at a left end  181 , and the third hole  40 M 213  at a second left end  182 . Similarly, the front middle right strip bar  40 M 22  comprises a first hole  40 M 221 , second hole  40 M 222  shown in  FIG. 8B , and third hole  40 M 223  respectively at a right end  183 , a left end  184  shown in  FIG. 8B , and the second right end  185 . As further illustrated, the front right strip bar  40 M 21  partially joins the front middle right strip bar  40 M 22 , when the front right strip bar  40 M 21  is placed onto the front middle right strip bar  40 M 22 , wherein the third hole  40 M 213  of the bar  40 M 21  matches the first hole  40 M 221  of the bar  40 M 22  where they are rigidly joined with the first set of the screw  40 M 26 A and the nut  40 M 26 B, and second hole  40 M 212  of the bar  40 M 21  matches third hole  40 M 223  of the bar  40 M 22 , when they are rigidly joined wherein a first nut  40 M 25 A is placed in the front side of the front right strip bar  40 M 21  and the second nut  40 M 25 B is placed in the rear side of the front middle right strip bar  40 M 22  wherein the front thread end  191  of the elongated rod  40 M 25  penetrates the second nut  40 M 25 B, the third hole  40 M 223  of the front middle right strip bar  40 M 22 , the second hole  40 M 213  of the front right strip bar  40 M 21 , and the first nut  40 M 25 A in series. As further illustrated in  FIG. 8A , the front right side strip bar  40 M 21  rotationally joins to the “L” shaped part  2 R of the right side support  10 R through a pin connection wherein a pin  40 M 28  acting as a front right side rotational axle penetrates the first hole  40 M 211  at the right end  180  of the front right strip bar  40 M 21  and continues through a horizontal hole of the rotational support  2 R 7  wherein the rotational support  2 R 7  is a cubic structure permanently fixed to the left side  125  of the “L” shaped part at the front bottom position  148 . It is understood that a structure of the rear right strip bar  40 M 23  partially joined a rear right middle strip bar  40 M 24  with a second set of screw  40 M 27 A and nut  40 M 27 B, and is the mirror image of the structure of the front right strip bar  40 M 21  partially joined to a front right middle strip bar  40 M 22  with a first set of screw  40 M 26 A and nut  40 M 26 B. Therefore a detailed description for the rear set is omitted. As further illustrated in  FIG. 8A , the rear right side strip bar  40 M 23  rotationally joins to the “L” shaped part  2 R of the right side support  10 R through a pin connection wherein a pin  40 M 29  acting as a rear right side rotational axle penetrates the first hole  40 M 231  (not shown) at the right end  186  of the rear right strip bar  40 M 23  and continues through a horizontal hole of the rotational support  2 R 8  wherein the rotational support  2 R 8  is a cubic structure permanently fixed to the left side  125  of the “L” shaped part  2 R at the rear bottom position  149 . It is then understood that the right frame unit  40 M 2  comprising the front set of the strip bars and the rear set of the strip bars linked by the elongated rod is able to rotate towards the left side  125  of the right side support  10 R if and upward force is applied to the unit. The left frame unit  40 M 3  is the mirror image of the right frame  40 M 2 . Therefore, a description of the structure and assembly illustrated for the left frame unit  40 M 3  in  FIG. 8A  is omitted. 
     Referring to  FIG. 8C , there is illustrated the connection of the right  40 M 2  and left  40 M 3  frame units of the fold assembly  40 M. As illustrated in  FIG. 8C , the front right middle strip bar  40 M 22  is placed into the inside room defined by the cross section of the inverted open bracket shaped structure of the front part  40 M 14 , wherein the left end  184  having the hole  40 M 222  of the bar  40 M 22  is inserted into inside the room defined under the top surface  158 , and between the front surface  159  and rear  160  surface of the front part  40 M 14  following a direction from the right end  156  to the left  157  end of the part  40 M 14 , when the left end  184  is placed into a section of the inside room close to the front surface  159 , wherein the hole  40 M 222  is aligned to the center hole  40  M 141  of the front part  40 M 14 . Similarly the front left middle strip bar  40 M 32 , a mirror image of the front right middle strip bar  40 M 22 , is also inserted into a section close to the rear surface  160  of the inside room, wherein the hole  40 M 322  at the right end  204  of the strip bar  40 M 32  is also aligned to the center hole  40 M 141 . The first threaded end  152  of the front bent rod  40 M 12  penetrates in series through the center hole  40 M 141  of the rear surface  160  of the front part  40 M 14 , through the hole  40 M 322  of the front left middle strip bar  40 M 32 , the hole  40 M 222  of the front right middle strip bar  40 M 22  and the center hole  40 M 141  of the front surface  159  of the front part  40 M 14 , wherein the front thread end  152  is secured by a nut  40 M 142 . Similarly the first thread end  154  of the rear bent rod  40 M 13 , a mirror image of the front bent rod  40 M 12 , penetrates thought the center hole  40 M 151  of the rear surface  163  of the rear part  40 M 15 , a hole  40 M 342  at the right end  210  of the rear left middle strip bar  40 M 34 , a hole  40 M 242  at the left end  190  of the rear right strip bar  40 M 24 , and the center hole  40 M 151  of the front surface  162  of the rear part  40 M 15 , wherein the first threaded end  154  is secured by a nut  40 M 152 . All of the mentioned holes have an appropriate tolerance to the size of the thread end. Therefore, a smooth rotation is achieved for both of the first threaded ends  152  and  154 . 
     Referring to  FIG. 8C  in reference  FIG. 8B , there is illustrated an operation of the fold assembly  40 M wherein the handle  40 M 11  is pulled upward to an elevated position, which upward pulling force makes the fold assembly folded wherein the right frame  40 M 2  rotates relative to a rotational axis defined by the front right rotational pin  40 M 28  inside of the front rotational support  2 R 7  and rear right rotational pin  40 M 29  inside of the rear rotational support  2 R 8  wherein both rotational supports are located on the left side  125  of the “L” shaped part  2 R of the right side support  10 R, and located above and to the left side of the right side support  10 R. The left frame  40 M 3  rotates, relative to the front left rotational pin  40 M 38  inside of the front left side rotational support  2 L 7  and the rear left rotational pin  40 M 39  inside rear left side rotational support  2 L 8  wherein both rotational supports are located on the right side  127  of the left side “L” shaped part  2 L of the left support  10 L, above and to the right side  127  of the left support  10 L. Thus a combination of the upward and rightward rotation of the right frame  40 M 2  and upward and leftward rotation to the left frame  40 M 3  makes the right support  10 R and left support  10  L move close together which thereby enables the chair  1  to be folded. 
     Referring to  FIG. 4 , there is illustrated a high bar  30 M located at an upper position between the right chair  10 R and left support  10 L. Further referring to  FIGS. 11A and 11B , there is respectively illustrated the high bar  30 M from a perspective view in an unfolded condition, and a top view of the high bar  30 M in a folded condition. As illustrated in  FIG. 11A , the high bar  30 M is generally an elongated rectangular shaped bar having a rectangular cross section including a depth  220  and a width  221 . As illustrated in the top view of  FIG. 11B , the high bar  30 M is further composed to two components, a right part  30 M 1  and a left part  30 M 2 . The parts are joined by a middle hinge  30 M 3 . The right part  30 M 1  comprises a right end surface  222 , a left end surface  223 , a front surface  224 , a rear surface  225 , and a top surface  226 , wherein a hole  30 M 11  extends perpendicularly through the part including the top surface  226  at a location  227  close to the left rear corner  228 . The left part  30 M 2  comprises a right end surface  230 , a left end surface  231 , a front surface  232 , a rear surface  233 , and a top surface  234 , wherein a short elongated bar  30 M 21  having the same rectangular shape as that of the left part is permanently fixed on the top surface  234  of the left part  30 M 2 . Referring to  FIG. 11B , the short bar  30 M 21  is illustrated attached to the left part  30 M 2  wherein a center surface dividing the elongated short bar is aligned to the right end surface  230  of the left part  30 M 2 , and a vertical hole  30 M 211  penetrates through the center  229  of the right half of the short bar  30 M 21 . As illustrated in  FIG. 11B , further referring to  FIG. 11A , the middle hinge  30 M 3  links the right part  30 M 1  and the left part  30 M 2  wherein a right half  30 M 31  of the hinge is vertically affixed to the right part  30 M 1  on the rear surface  225  close to the corner  228  of the right part, and a left half  30 M 32  of the hinge is vertically affixed to the left part  30 M 2  on the rear surface  233  close to the corner  235  of the left part. Therefore the high bar  30 M is able to fold around a rotational axis  30 M 33  of the hinge  30 M 3 . As illustrated in  FIG. 11A , further referring to  FIG. 11B , it can be seen that the vertical hole  30 M 211  on the right half of the short bar  30 M 21  is aligned the hole  30 M 11  of the right part  30 M 1 , wherein both holes  30 M 211  and  30 M 11  have the same size. Therefore the right part  30 M 1  is able to lock to the left part  30 M 2  wherein a pin  30 M 4  is inserted into the hole  30 M 211  of the short bar  30 M 21  of the left part  30 M 2  and continues through the hole  30 M 11  of the right part  30 M 1 , which corresponds to the unfolded position of the high bar  30 M shown in  FIG. 11A . The above discloses a foldable function of the high bar  30 M. The following section is going to illustrate how the high bar respectively links to the right and left side supports  10 R and  10 L. 
     Referring to  FIG. 7 , there is illustrated a right hinge  2 R 10  located at a position close to but below the top  130  on the left side of the “L” shaped part  2 R of the right support  10 R, comprising a left half  2 R 101  fixed to the “L” shaped part  2 R, a rotational axle  2 R 102  of the right hinge  2 R 10  wherein the rotational axle is placed perpendicular to the ground, and a right half  2 R 103 , wherein it is able to rotate from the right position to the left position around the rotational axle  2 R 102 . Referring again to  FIG. 7  and further referring to  FIG. 11A , it can be seen that the high bar  30 M is able to connect the “L” shaped part  2 R of the right side support  10 R, wherein a front side  137  of the walk half  2 R 103  of the right hinge  2 R 10  and the right end surface  222  of the walk part  30 M 1  of the high bar  30 M are screwed together, wherein the top surface  226  of the right part  30 M 1  is placed parallel to the ground. Similarly, the high bar  30 M is also able to link the left side support  10 L wherein the left end surface  231  of the left part  30 M 2  of the high bar and a front surface of a left half of a left hinge  2 L 10  (not shown) which is a mirror image of the right hinge  2 R 10  are screwed together, wherein the top surface  234  of the left part  30 M 2  is placed parallel to the ground. Therefore, the foldable high bar  30 M is able to be folded forward horizontally as shown in  FIG. 11B  when the fold assembly  40 M is pulled upward, which results in the fold assembly being folded vertically. The above disclosures illustrate foldability, one of novel features of the present invention walking chair  1 . 
     Referring to  FIG. 1 , there is illustrated a leaning bar  20 M placed horizontally between the right elongated shoulder arm  5 Rand the left elongated shoulder arm  5 L. Further referring to  FIG. 10 , there is illustrated th structure of the leaning bar  20 M. The leaning bar  20 M is composed of two elongated rectangular plates with a rectangular cross section, wherein a bottom plate  20 M 1  is vertically connected along its elongated side to a bottom side of a top horizontal plate  20 M 2  at the central line of the plate along its longitudinal direction. The top plate  20 M 2  is wider than the bottom plate  20 M 1 . The bottom plate  20 M 1  has a right end with a vertical right end surface  165 , wherein a horizontal hole  20 M 11  penetrates into the center of the right end surface  165  by a small distance, and a left end with a vertical left end surface  166 , wherein a horizontal hole  20 M 12  penetrates into the center of the left end surface  166  by a small distance. The top plate  20 M 2  has a right end  167  and a left end  168 , a front side  169 , and a rear side  170 . A right open rectangular cavity  20 M 21  is located close to the right end  167  and opens toward the front  169 . A left open rectangular cavity  20 M 22  is located close to the left end  168  and also opens toward the front  169 . 
     As further illustrated in  FIGS. 10 and 1 , the right open rectangular cavity  20 M 21  comprises a width  171 , and a length  172  with a vertical lengthwise section surface  173 , wherein the lengthwise section surface  173  is aligned with the right end surface  165  of the bottom plate  20 M 1 . The width  171  of the open rectangular cavity  20 M 11  matches a width of the right shoulder arm  5 R having a generally rectangular shaped cross section, and the length  172  is designed to fit the right arm  5 R at a position close to the second end  133  of the arm so that it is able to be vertically placed into the cavity wherein a hole  5 R 3  that perpendicularly penetrates from the elongated right side  128  to the left side  129  of the arm  5 R matches the hole  20 M 11  located on the center of the right end surface  165  of the bottom part  20 M 1 . Therefore, a right side pin  5 R 31  can be inserted into the hole  5 R 3  from a direction of the right side  128  to the left side  129  of the right arm  5 R and continues into the hole  20 M 11  located on the right end of the bottom part  20 M 1  of the leaning bar  20 M. Since left shoulder arm  5 L and the left end of the leaning bar  20 M are mirror images of their right side counterparts, it will be appreciated that a left side pin  5 L 31  is inserted into a hole  5 L 3  (not shown) of the left arm  5 L and continues into the hole  20 M 12  located on the left end surface  166  of the bottom part  20 M 1  of the leaning bar  20 M. Referring to  FIG. 1 , the leaning bar  20 M serves as a support for a user to lean onto so that the user is able to have a comfortable rest when the rear wheels  8 R 1  and  8 L 1  are locked by respective brake paddles and the right shoulder arm  5 R and left shoulder arm  5 L are at their elevated positions and are respectively locked to the right “L” shaped part  2 R of the right side support  10 R and left “L” shaped part  2 L of the left side support  10 L so that the leaning bar  20 M is firmly affixed between the right arm  5 R and left arm  5 L. If the rear wheels  8 R 1  and  8 L 1  are unlocked, then the user can push the walking chair by pushing the user&#39;s chest against the leaning bar  20 M or pushing against the leaning bar with the user&#39;s hands or forearms. 
     Referring to  FIG. 1 , there is illustrated a back support  60 M and seat  80 M of the present invention walking chair  1 . Further referring to  FIG. 12 , a detailed structure of the back support  60 M is illustrated. The back support  60 M is a frame structure covered with a surface material  60 M 5 , comprising a right vertical rod  60 M 1 , a left vertical rod  60 M 2 , a top horizontal bar  60 M 3 , and a bottom horizontal bar  60 M 4 . The right vertical rod  60 M 1  including a convex front side  60 M 11  and a concave rear side  60 M 12 , with a bottom end surface  241  and a top end  242 . The left vertical rod  60 M 2  is a mirror image of the right vertical rod  60 M 1 , including a front side  60 M 21  and a rear side  60 M 22 , with a bottom end surface  243  and a top end  244 . The top horizontal bar  60 M 3  is an elongated cubic bar including a right end  246 , a left end  247 , a front side  245  and a bottom side  286 . The bottom horizontal bar  60 M 4  is also an elongated cubic bar, including a front side  248 , a right end  249 , a left end  250  and a rear side  279 . The top bar  60 M 3  horizontally connects the right vertical rod  60 M 1 , wherein respectively the front surface  245  near the right side  246  contacts the rear surface  60 M 12  at a position just below the top  242 . Similarly, the top bar  60 M 3  horizontally connects the left vertical rod  60 M 2 , wherein respectively the front surface  245  near the left side  247  contacts the rear surface  60 M 22  at a position just below the top  244 . As illustrated in  FIG. 12 , the bottom elongated horizontal cubic bar  60 M 4 , connects the right vertical bar  60 M 1 , wherein respectively the front surface  248  near the right side  249  contacts the rear surface  60 M 12  at a position just above the bottom defined with the bottom surface  241 . Similarly, the bottom elongated horizontal cubic bar  60 M 4  connects the left vertical bar  60 M 2 , wherein respectively the front surface  248  near the left end  250  contacts the rear surface  60 M 22  at a position just above the bottom defined with bottom surface  243 . 
     Referring to  FIG. 13 , there is illustrated the detailed frame structure of the seat  80 M without the seat covering materials  80 M 6  shown in  FIG. 1 . The frame structure of the seat  80 M, comprises a right curved rod  80 M 1 , a left curved rod  80 M 2 , a rear horizontal bar  80 M 3 , a front vertical bar  80 M 5 , and a front horizontal bar  80 M 4 . The right horizontal rod  80 M 1  comprises a curved top side  251 , a curved bottom side  252 , a rear upper side  253 , a rear bottom side  254 , a rear end  255 , and a front end  256 . The left horizontal rod  80 M 2  is a mirror image of the right horizontal rod  80 M 1 , comprising a curved top side  257 , a curved bottom side  258 , a rear upper side  259 , a rear bottom side  260 , a rear end  261 , and a front end  262 . The rear horizontal bar  80 M 3  is an elongated cuboid with a rectangular cross section having a right end  265 , a left end  266 , a top side  267 , a bottom side  268 , and a rear side  269 . The front horizontal bar  80 M 4  and vertical bar  80 M 5  are elongated cuboids with the same rectangular cross section. The front horizontal bar  80 M 4  comprises a front side  270 , a top side  271 , a rear side  272 , a bottom side  274 , and a right end  273 . The front vertical bar  80 M 5  comprises a front side  278 , a top side  275 , a rear side  276  and a right end  277 . Referring to  FIG. 13 , the front horizontal bar  80 M 4  connects the front vertical bar  80 M 5 , wherein the elongated top surface  271  of the front horizontal bar  80 M 4  is aligned with elongated top surface  275  of the front vertical bar  80 M 5 , and their respective right end  273  and  277  are also aligned. With this configuration, the top side  271  of the front horizontal bar  80 M 4  is perpendicular to the front side  278  of the front vertical bar  80 M 5 , which creates a 90 degree angle at the connection of the respective bottom side  274  of the front horizontal bar  80 M 4  and rear side  276  of the front vertical bar  80 M 5 . As that further illustrated in  FIG. 13 , the right curved rod  80 M 1  connects the rear horizontal bar  80 M 3 , wherein the curved rod  80 M 1  is placed 90 degrees to the rear horizontal bar  80 M 3 , and the rear bottom side  254  of the curved rod is placed on the top surface  267  close to the right end  265 . The right curved rod  80 M 1  connects to the front horizontal bar  80 M 4 , wherein the respective front end  256  which is at 90 degrees connects the rear side  272  close to the right end of  273  of the front horizontal bar. It will be appreciated that the connection for the left curved rod  80 M 2  to the left end of the rear horizontal bar  80 M 3 , and the front horizontal  80 M 4  and front vertical bar  80 M 5  corresponds to the same connects as the right curved rod  80 M 1 . 
     Referring to  FIGS. 5 ,  7 , and  8 A, there is illustrated the attachment of the seat  80 M and back support  60 M to the right side support  10 R and the left side support  10 L, wherein the right side support and the left side support are linked to the fold assembly  40 M and to the high bar  20 M at their extended positions. As shown in  FIG. 7 , a front support  2 R 5  is located at the top front  137  of the left side  125  of the “L” shaped part  2 R, and the bottom support  2 R 9  is located at a position  149  between the first nut  1 R 11  and the second nut  1 R 21 , along the line defined by the first nut  1 R 11 , the second nut  1 R 21 , and a third nut  1 R 31 . The bottom support  2 R 9  as shown in  FIG. 8A  is a bar having a short horizontal section  2 R 91  with a top surface  281  and a relatively long ascending section  2 R 92  with front surface  282 . A top support  2 R 15  shown in  FIG. 7  is horizontally located above the top of the hole  2 R 4 , close to front side  126  of the vertical member of the “L” shaped part  2 R which is a general cuboid with round corners. Therefore, the seat  80 M is able to settle between the right side support  10 R and the left support  10 L. The front support  2 R 5  supports the front vertical bar  80 M 5  and horizontal bar  80 M 4  at their right end  278  and  273 . The front support  2 R 5  contacts the rear side  276  of the front vertical bar  80 M 5  and also contacts the bottom side  274  of the horizontal front bar  80 M 4 . Referring to  FIGS. 7 ,  8 A, and  13 , it is also understood that the bottom right support  2 R 9  supports the rear horizontal bar  80 M 3  at its right end  265 , through a contact from the top surface  281  of the short section  2 R 91  of the bottom support  2 R 9  to the bottom surface  268  of the rare horizontal bar  80 M 3  at the right side  265 . It will be appreciated that a similar supporting mechanism is incorporated at the right side of the left support  10 L, since the left side support  10 L is the mirror image of the right side support  10 R. The distance between the handles and the seat support section is sufficient to enable a user&#39;s leg to take a forward stride without hitting the seat support section. 
     Referring to  FIGS. 5 ,  7 ,  8 A,  12 , and  13 , there is illustrated the attachment of the back support  60 M to the right support  10 R and left support  10 L, and further to the seat  80 M. As illustrated in  FIG. 5 , the back support  60 M attaches to the seat  80 M, wherein the right convex rod  60 M 1  at the bottom side  241  downwardly contacts the right curved rod  80 M 1  at the rear upward side  253 . As illustrated in  FIGS. 7 ,  8 A, and  12 , the bottom horizontal cubic rod  60 M 4  at the right end through the back side  269  leans against the front surface  282  of the ascending part  2 R 92  of the bottom support  2 R 9 . As further illustrated in  FIGS. 7 and 12 , the upper horizontal bar  60 M 3  of the back support  60 M is supported by the upper support  2 R 15  which is horizontally located on the left side  125  of the “L” shaped part  2 R, wherein the top surface  285  of the upper support  2 R 15  upwardly supports the bottom surface  286  at the right end  246  of the top elongated horizontal cubic bar  60 M 3 . The above discloses mechanisms to attach the back support  60 M to the left side  125  of the “L” shaped part  2 R of the right side support  10 R, and right rear end of the seat  80 M. It will be appreciated that the back support  60 M is able to attach the left side support  10 L and the left rear end of the seat  80 M in the same way as disclosed above. 
     Referring to  FIGS. 1 ,  3 A,  14 A, and  14 B, there is illustrated the structure and application of a wide-armrest  4 R, a unique part of the present invention walking chair  1 . As illustrated in the cross-sectional view of  FIG. 14A , the wide armrest  4 R is located where a body part  1 R 10  of the “y” shaped part  2 R supports the wide armrest  4 R by residing inside of a cavity  4 R 1  of the wide armrest, and the size of the cross-section of the cavity matches the size of the body part  1 R 10 . Said body part  1 R 10  shown in  FIG. 3A  is a segment of the slightly convex body of the “y” shaped part  1 R, wherein the body part  1 R 10  starts at the position  147  and ends at the bottom end  122  of the “y” shaped part  1 R. It will be appreciated that the body part  1 R 10  acts as a front arm. Referring to  FIGS. 3A ,  7  and  1 , there is illustrated the body part  1 R 10  comprising a right side  115 , a top convex side  116 , a left side  117 , and a bottom side  118 . Further as illustrated in  FIG. 14A , the wide armrest  4 R is a general cuboid, wherein a top rectangular surface  285  of the armrest is placed parallel to the direction of the top surface  116  of the body part  1 R 10 , a right side rectangular surface  286  and the left side  288  are respectively aligned to the right side  115  and left side  117  of the body part  1 R 10  and further oriented vertically relative to the ground. A cavity opens to a bottom side  287  of the armrest. The cavity  4 R 1  is an elongated one, comprising a right side  290  and left side  292  parallel to the right side  286 . The cavity  4 R 1  is perpendicular to the bottom side  287  of the armrest  4 R and has a top concave surface  291  parallel to the top  285 . An elongated center plane of the cavity  4 R 1  is parallel to both the right side  286  and the left side  288  of the armrest, and is aligned with a center plane of the wide armrest  4 R. 
     Referring to  FIGS. 3A and 5 , there is illustrated a first hole  1 R 8  that perpendicularly penetrates through the body part  1 R 10  at a position  138  close to an open end that is the bottom end  122  of the “y” shaped part  1 R. Similarly, a second hole  1 R 9  is at a position  139  close to the position  147 . Therefore, a length of the wide armrest  4 R is longer than the length determined by the two holes  1 R 8  and  1 R 9 . Referring to  FIG. 14A  again, there is illustrated the connection of the wide armrest  4 R onto the body part  1 R 10 , wherein two holes  4 R 2  and  4 R 3  (not shown) are drawn perpendicularly to the top surface  285  and respectively throughout the armrest to connect the first hole  1 R 8  and the second hole  1 R 9  of the body part. After the wide armrest  4 R is first appropriately placed onto the body  1 R 10  of the “y” shaped part  1 R, including having the front of the armrest aligned to the front end  122  of the body part  1 R 10 , then the body of the armrest covers both of the two holes. The top surface of the cavity matches the top surface of the body part, and the side surface of the armrest is perpendicular to the ground. After the holes are created, one rubber cord  4 R 5  with a knot at one end is used so that the other end of the rubber cord penetrates through the hole  4 R 2  in the armrest and continues through the hole  1 R 8  in the body part. The rubber cord  4 R 5  is stretched, and then a second knot is made, and finally the extra length of rubber cord is cut off. Thus the wide armrest  4 R is stabilized on the body part  1 R 10  of the “y” shaped part  1 R of the walking chair. Following this procedure, the second rubber cord is used to link the hole  4 R 3  (not shown) of the armrest and the hole  1 R 9  of the body part for the same purpose. As previously illustrated, the present invention unique walking chair  1  provides a user friendly condition and effective ergonomics for the user. The wide armrest with wide size and an appropriate ascending angle provides comfort for the user. However, the wide size of the armrest increases bulkiness of the chair and may create a problem in that the walking chair may be unable to pass through a standard 30″ wide door when the wide armrest is horizontally placed shown in  FIG. 14A . The problem is resolved by having the wide armrest  4 R being rotatable as shown in  FIG. 14B  so that the wide armrest  4 R can be rotated by 90 degrees to be vertically oriented and thereby reduce the horizontal width of the chair to enable it to pass trough a standard 30 inch door. The wide armrest is preferably made with elastic compressible polymer materials and installed with the rubber cords disclosed above. Therefore, the wide armrest can easily be turned to be vertically oriented and therefore enables the walking chair to conveniently pass through narrow spaced areas. 
     In addition to the above rotatable armrest  4 R, the present invention unique walking chair  1  posses the advantage of a unique gliding capability when it is folded. The gliding capability is provided from a first side glide of the front glide  2 R 10 , a second side glide of the shoulder glide  2 R 11 , and the extended left end  120  of the “y” shaped part  1 R. Referring to  FIGS. 1 and 3A , there is illustrated the first side glide  2 R 10  located at upper front  114  of the right side  124  of the horizontal member of the “L” shaped part  2 R, wherein the glide  2 R 10  has a size defined by a rectangular back side  290 , the front side  291 , the left side  292 , the right  293 , and the bottom side  294 . Said rectangular back side  290  is placed so as to contact the right side  124  of the right side “L” shaped part  2 R with an orientation so that the longer arm is vertically positioned. The first shorter arm is horizontally placed at the top and the second same short arm is horizontally placed at bottom. The front surface  291  starts from the top shorter arm of the rectangular backside  290  with a short section having a downward cylindrical curved plane immediately following a rectangular plane ending with a third shorter arm. The second same short arm and the third short arm form the bottom horizontal rectangular plane  294 , wherein the elongated direction of the bottom rectangular plane is horizontal and parallel to the back side plane  290 . The left side plane  292  and right side plane  293  are mirror images each other, and are defined by the back side  290 , the front side  291 , and bottom side  294  of the first side glide of the front glide  2 R 10 . 
     Further referring to  FIGS. 1 and 3A , there is illustrated the second side glide of the shoulder  2 R 11  located on the right side  124  of the right side “L” shaped part  2 R positioned vertically above the top of the hole  2 R 4 . The second glide  2 R 11  is a cuboid, wherein the length of the cuboid is placed vertically, the width is positioned horizontally, and the height of the cuboid is perpendicular to the right side  124  of the “L” shaped part  2 R, wherein the height is the shortest dimension of the cuboid and the length the longest dimension of the cuboid. The second side glide  2 R 11  has the front end with a front rectangular surface  296 , wherein the front end comprises smooth curved vertical and horizontal edges. 
     Further referring to  FIG. 3A , there is illustrated the left end  120  of the “y” shaped part  1 R extended over the rear wheel axle  8 R 28 . As illustrated in  FIG. 1 , the first side glide of the front glide  2 R 10  and the second glide of the shoulder glide  2 R 11  have the same thickness as that of the “y” shaped part  1 R, and therefore with the aid of the front glide  2 R 10  and shoulder glide  2 R 11 , the right side positions of the right side support  10 R at the front  114  and top  130  are kept at the same level as that of the right side surface  115  of the “y” shaped part  1 R. Therefore, with the aid of the side glides having a smooth surface and round edges, plus the extended left end  130  of the “y” shaped part  1 R to prevent the rear wheel axle  8 R 28  that is perpendicular to the floor resisting sliding, the walking chair is easily slid into a narrow area, for example under a rear seat of a mini van, after the walking chair is folded wherein the right side of the right side support touches the floor of the van. It will be appreciated that since the walking chair  1  comprises a left side which is a mirror image of the right side, there is a mirror image set of a left front glide  2 L 10 , a left shoulder glide  2 L 11 , and an extended right end of the “y” shaped part  1 L on the left support  10 L, wherein the mirror image set supports a smooth sliding of the walking chair  1  after that it is folded and the left side of the left side support  10 L touches the floor. The above disclosures illustrate that the present invention walking chair  1  is able to easily slid into a narrow area after it is folded including folding both shoulder arms. 
     Referring to  FIG. 9 , there is illustrated the present invention walking chair  1  used as a golf trolley which includes carrying a golf bag with clubs and other golf accessories. As illustrated, a plurality of gulf clubs is supported by the present invention walking chair  1 , wherein the golf clubs lie through an upper opening  1 L 4  of the left side “L” shaped part  2 L of the left side support  10 L and a bottom hole  1 R 3  on the right side “L” shaped part  2 R of the right support  10 R. 
     Referring to  FIG. 3B , there is illustrated the present invention walking chair  1 , wherein the rotatable arms  5 R and  5 L are folded and locked, in contrast their position in  FIG. 3A  where the arms are rotated to their elevated position with the leaning bar  20 M installed. It the configuration of  FIG. 3B , the user can comfortably move the walking chair  1  by holding onto the tops of vertical members of the right side and the left side “L” shaped part  2 R and  2 L, instead of gripping on or leaning against the leaning bar to move the chair. It will also be appreciated that the user also can hold the glide  2 R 11  and  2 L 11  of the respective right and left side “L” shaped parts  2 R and  2 L to move the walking chair  1 . Referring to  FIG. 3A , there is illustrated the rotatable shoulder arms  5 R and  5 L at their elevated position, wherein the arms are designed to have a sufficient length so that the leaning bar  30 M can be placed at a height that matches the height position of the user&#39;s chest. The user then can use his/her chest and/or forearms or hands to push the walking chair  1  forward when the user&#39;s chest is positioned against the backside of the leaning bar  20 M that is placed between two arms  5 R and  5 L. The above disclosures illustrate another unique characteristic of the present invention having multiple positions to move the walking chair  1  including pushing it when the arms are folded or elevated and pushing it by leaning on the leaning bar  20 M positioned at an adjustable height to accommodate the specific torso height of a given user. The prior art does not includes these features. The present invention also functions as a wheelchair for a person to sit in and be pushed or to move the chair by action of the user&#39;s legs. Optionally, footrests  2 R 20  and  2 L 20  as illustrated in  FIG. 5  can be added. 
     Referring to  FIG. 7 , there is illustrated the rear wheel support  8 R 2 , wherein as previously discussed, the length of the support is adjustable so that the level of the seat  80 M is also adjustable, which provides a feature to ergonomically fit the user&#39;s physical body shape. The wheels are adjustable in cant and height by adding spacers. 
     Further referring to  FIG. 7  in addition to  FIG. 3A , there is illustrated the upper wherein each is aligned with a respective vertical portion of the “L” shaped section to which it is rotatably connected, a transverse leaning bar removably attachable between the left and right shoulder arms when they are in their extended condition; (b) left and right generally “y” shaped sections, an upper branch of each section respectively connected to a location on a respective left and right vertical portion of a respective left and right generally “L” shaped section, and a downwardly extending branch respectively connected at a lower portion of a respective left and right vertical portion of a respective left and right generally “L” shaped section and respectively extending downwardly therefrom; (c) each generally horizontal portion of the left and right generally “L” shaped section having an upper section which removably supports a seat frame which retains a horizontal seat, the seat frame retained between the generally horizontal portions, each generally horizontal portion having a lower section which respectively rotatably supports a transverse fold assembly between them, the fold assembly having transverse rods rotatably connected to a respective lower section and rotatably joined at a location between the two lower sections with a rotatable handle member, the transverse rods and rotatable handle rotatable to an orientation aligned with the generally vertical portions of the left and right generally “L” shaped sections when in the closed position, each lower section supporting an inverted generally “U” shaped collar at a location remote from the respective generally vertically extending portion of the left and right generally “L” shaped sections, each generally inverted “U” shaped collar respectively rotatably supporting a front wheel which can horizontally rotate 360 degrees, a bottom brake cable assembly supported on each lower section of the generally horizontal portion of the left and right generally “L” shaped sections, the lower brake assembly having a brake handle and a cable connected to braking means connected to a respective rear wheel so that the walking chair can be braked when a user is in the seated condition, and each lower section respectively supporting an inverted “U” shaped wheel housing at a location adjacent to the respective generally vertically extending portion of the left and right generally “L” shaped sections, which inverted “U” shaped wheel housing respectively supports a left and a right rear wheel, the cable mechanism from a respective upper brake assembly respectively connected to a left and right brake assembly which respectively brakes the left and right rear wheels; (d) each upper branch of the left and right generally “y” shaped sections forming an arm support assembly which respectively extend above a respective upper member of the generally horizontally extending portion of the left and right generally “L” shaped sections, each arm support rotatably supporting a flexible compressible wide armrest, each flexible compressible wide armrest positioned above a respective arm support when in use and rotatable to be vertically aligned with its respective arm support to reduce the width of the walking chair; (e) a backrest supported in a frame assembly which in turn is removably supported between the generally vertically extending portions of the left and right generally “L” shaped sections; (f) at least one of the left and right generally “L” shaped sections supporting a glide assembly which enables the walking chair to be slid on the glide assembly when the walking chair is oriented so that the glide assembly is positioned adjacent a horizontal surface; (g) each vertically extending portion of the left and right generally “L” shaped sections having at least one opening so that objects can be retained between the at least one openings in the vertically extending portions; and (I) the walking chair can be pushed by a user leaning the user&#39;s chest against the leaning bar or by the user pushing against the leaning bar with the user&#39;s forearms or hands, and the user can rest by leaning against the leaning bar with the rear wheels locked by the upper braking mechanism. 
     Defined broadly, the present invention is a walking chair, comprising a: (a) a chair structure having spaced apart left and right frame members with each member having a generally vertically extending portion and a generally horizontally extending portion, a left shoulder arm rotatably connected to and extending vertically from a location adjacent an upper end of the vertical portion of the left frame member which terminates in handle bar shaped in the form of a trekking pole and including an upper brake assembly including an upper brake handle and a cable extending therefrom, a right shoulder arm rotatably connected to and extending vertically from a location adjacent an upper end of the vertical portion of the right frame member which terminates in handle bar shaped in the form of a trekking pole and including an upper brake assembly including an upper brake handle and a cable extending therefrom, the two shoulder arms rotatable to an extended condition above the vertically extending portions and rotatable to a folded condition wherein each is aligned with a respective vertically extending portion, a transverse leaning bar removably attachable between the left and right shoulder arms when they are in their extended condition; (b) the generally horizontally extending portions of the left and right frame members respectively supporting a left and right rear wheel at a location adjacent the vertically extending portions, the cable mechanism from a respective upper brake assembly respectively connected to a left and right brake assembly which respectively brakes the left and right rear wheels, the horizontally extending portions also rotatably supporting left and right front wheels which can rotate 360 degrees, the front wheels being at a location remote from the vertically extending portions; (c) the generally horizontally extending portions of the left and right frame members removably supporting a horizontal seat; (d) left and right transverse frame members respectively attached to the left and right vertically extending portions of the frame members, each left and right transverse frame member including an arm support rotatably supporting a flexible compressible wide armrest, each flexible compressible wide armrest positioned above a respective arm support when in use and rotatable to be vertically aligned with its respective armrest to reduce the width of the walking chair; and (e) a backrest removably supported between generally vertically extending portions of the left and right frame sections. 
     Defined more broadly, the present invention is a walking chair, comprising: (a) a chair structure having spaced apart left and right frame members with each member having a generally vertically extending portion and a generally horizontally extending portion, a left shoulder arm rotatably connected to and extending vertically from a location adjacent an upper end of the vertical portion of the left frame member which terminates in handle bar shaped in the form of a trekking pole, a right shoulder arm rotatably connected to and extending vertically from a location adjacent an upper end of the vertical portion of the right frame member which terminates in handle bar shaped in the form of a trekking pole, the two shoulder arms rotatable to an extended condition above the vertically extending portions and rotatable to a folded condition wherein each is aligned with a respective vertically extending portion; (b) the generally horizontally extending portions of the left and right frame members respectively supporting a left and right rear wheel at a location adjacent the vertically extending portions, the horizontally extending portions also rotatably supporting left and right front wheels which can rotate 360 degrees, the front wheels being at a location remote from the vertically extending portions; (c) the generally horizontally extending portions of the left and right frame members removably supporting a horizontal seat; (d) left and right transverse frame members respectively attached to the left and right vertically extending portions of the frame members, each left and right transverse frame member including an arm support; and (e) a backrest removably supported between generally vertically extending portions of the left and right frame sections. 
     Defined even more broadly, the present invention is a walking chair, comprising: (a) a chair structure having spaced apart left and right frame members with each member having a generally vertically extending portion and a generally horizontally extending portion, each generally horizontally extending portion respectively supporting left and right rear wheels and supporting horizontally rotatable left and right front wheels, the horizontally extending portions removably supporting a horizontal seat; (b) each horizontally extending portion of the left and right frame member respectively rotatably supporting a transverse fold assembly between them, the fold assembly having transverse rods rotatably connected to a respective horizontally extending portion and rotatably joined at a location between the two horizontally extending portions with a rotatable handle member, the transverse rods and rotatable handle rotatable to an orientation aligned with the generally vertical portions of the left and right frame members when in the closed position; (c) left and right transverse frame members respectively attached to the left and right vertically extending portions of the frame member, each transverse frame member including an arm support; and (d) a backrest removably supported between generally vertically extending portions of the left and right frame members. 
     Defined even more broadly, the present invention is a walking chair, comprising: (a) a chair structure having spaced apart left and right frame members with each member having a generally vertically extending portion and a generally horizontally extending portion, each generally horizontally extending portion respectively supporting left and right rear wheels and supporting horizontally rotatable left and right front wheels, the horizontally extending portions removably supporting a horizontal seat; (b) left and right transverse frame members respectively attached to the left and right vertically extending portions of the frame member, each transverse frame member including an arm support which rotatably supports a flexible compressible wide armrest, each flexible compressible wide armrest positioned above a respective arm support when in use and rotatable to be vertically aligned with its respective armrest to reduce the width of the walking chair; and (e) a backrest removably supported between generally vertically extending portions of the left and right frame members. 
     Defined even more broadly, the present invention is a walking chair, comprising: (a) a chair structure having spaced apart left and right frame members with each member having a generally vertically extending portion and a generally horizontally extending portion, a left shoulder arm rotatably connected to and extending vertically from a location adjacent an upper end of the vertical portion of the left frame member which terminates in a handle bar, a right shoulder arm rotatably connected to and extending vertically from a location adjacent an upper end of the vertical section of the right frame member which terminates in a handle bar, the two shoulder arms rotatable to an extended condition above the vertically extending portions and rotatable to a folded condition wherein each is aligned with a respective vertically extending portion, a transverse leaning bar removably attachable between the left and right shoulder arms when they are in their extended condition; (b) each generally horizontally extending portion respectively supporting left and right rear wheels and supporting horizontally rotatable left and right front wheels, the horizontally extending portions removably supporting a horizontal seat; (c) left and right transverse frame members respectively attached to the left and right vertically extending portions, each transverse frame member including an arm support; and (e) a backrest removably supported between generally vertically extending portions of the left and right frame sections. 
     Defined even more broadly, the present invention is a walking chair, comprising: (a) a chair structure having spaced apart left and right frame members with each member having a generally vertically extending portion and a generally horizontally extending portion, a left shoulder arm rotatably connected to and extending vertically from a location adjacent an upper end of the vertical portion of the left frame member which terminates in a handle bar, a right shoulder arm rotatably connected to and extending vertically from a location adjacent an upper end of the vertical section of the right frame member which terminates in a handle bar, the two shoulder arms rotatable to an extended condition above the vertically extending portions and rotatable to a folded condition wherein each is aligned with a respective vertically extending portion, a transverse leaning bar removably attachable between the left and right shoulder arms when they are in their extended condition; (b) each generally horizontally extending portion respectively supporting left and right rear wheels and supporting horizontally rotatable left and right front wheels, the horizontally extending portions removably supporting a horizontal seat; (c) left and right transverse frame members respectively attached to the left and right vertically extending portions, each transverse frame member including an arm support; and (d) a backrest removably supported between generally vertically extending portions of the left and right frame sections. 
     Defined even more broadly, the present invention is a walking chair, comprising: (a) a chair structure having spaced apart left and right frame members with each member having a generally vertically extending portion and a generally horizontally extending portion, each generally horizontally extending portion respectively supporting left and right rear wheels and supporting horizontally rotatable left and right front wheels, the horizontally extending portions removably supporting a horizontal seat, each vertically extending portion extending to a member which supports a handle bar connected to an upper brake assembly, a bottom brake assembly supported on a horizontally extending portion; (b) left and right transverse frame members respectively attached to the left and right vertically extending portions of the frame member, each transverse frame member including an arm support; (c) a backrest removably supported between generally vertically extending portions of the left and right frame members; and (d) the upper brake assembly connected to a cable which in turn is connected to a braking means adjacent the rear wheels and the bottom brake assembly connected to a cable which in turn is connected to braking means adjacent the rear wheels, so that the walking chair can be braked from a standing position or from a seated position. 
     Of course the present invention is not intended to be restricted to any particular form or arrangement, or any specific embodiment, or any specific use, disclosed herein, since the same may be modified in various particulars or relations without departing from the spirit or scope of the claimed invention hereinabove shown and described of which the apparatus or method shown is intended only for illustration and disclosure of an operative embodiment and not to show all of the various forms or modifications in which this invention might be embodied or operated.