Abstract:
A seating system of improved comfort and effectiveness for use as bicycle seating, in particular, and body support, in general. The seating system provides support at the front and rear of the cyclist&#39;s hips. The rear support is at the sit bones and above the back of the thigh muscles. The rear support is complemented by a moveable support at the front of the waist. When a cyclist is seated, the front support holds up the forward leaning cyclist. When a cyclist rises to pedal in a standing posture, the front support rises with, and continues supporting the cyclist. When a cyclist sits down, the waist support can drop back down or remain up. When the front support remains up, the cyclist can stand on the ground while straddling the bicycle frame; thus allowing the cyclist stop and start pedalling in the normal position of straddling the bicycle frame.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS  
       [0001]     This application claims the benefit under 35 U.S.C. §119(e) of co-pending U.S. Provisional Patent Application Ser. No. 60/645,013, filed Jan. 21, 2005, which is hereby incorporated by reference. 
     
    
     STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT  
       [0002]     Not Applicable.  
       NAMES OF THE PARTIES TO A JOINT RESEARCH AGREEMENT  
       [0003]     Not Applicable.  
       REFERENCE TO A SEQUENCE LISTING, A TABLE, OR COMPUTER PROGRAM COMPACT DISC APPENDIX  
       [0004]     Not Applicable.  
       BACKGROUND OF THE INVENTION  
       [0005]     1. Field of Endeavor  
         [0006]     The present invention relates generally to providing stable support for a person&#39;s torso while simultaneously allowing a full range of motion for a person&#39;s limbs; the present invention relates particularly to providing stable support for a cyclist&#39;s body while simultaneously accommodating the full range of a cyclist&#39;s body movements, and accomplishing improvements in both comfort and mechanical efficiency for a cyclist.  
         [0007]     2. Description of Information Known  
         [0008]     Bicycles popularly appeared as a form of self-propelled vehicle during the early Nineteenth Century. These early vehicles were characterized by two wheels aligned in the direction of travel of the vehicle. From the generative forms of the hobby-horse, up to the present day, bicycle seats have predominantly taken the form of a device oriented on the longitudinal axis of the cycling vehicle. These prior forms of seating were intended to be straddled by the user, with the weight of the user&#39;s body being borne between the user&#39;s legs, on the underside of the body&#39;s pelvis.  
         [0009]     The most common form of contemporary bicycle seats are fundamentally similar to the forms of seats used during the Nineteenth Century. The most prevalent form of contemporary bicycle seat is a saddle form of seat. The contemporary saddle forms of bicycle seats share a common generic art. The contemporary saddle form of a bicycle seat is typically oriented with the long dimension of the seat aligned on the longitudinal axis of the frame of the cycling vehicle. The saddle seat is then straddled by the cyclist in the process of riding a bicycle.  
         [0010]     The configuration of a saddle form of seat derives from the shape of the space between the cyclist&#39;s legs, which shape is formed when a cyclist is pedalling a bicycle while in a seated posture. In the common saddle form of a seat the user&#39;s body weight is, in greater or lesser amounts, supported on the horn of the saddle seat, which horn projects toward the front end of the bicycle. The user&#39;s body weight is then concentrated on the underside of the pelvis between the user&#39;s legs. Being located between the cyclist&#39;s legs, the saddle form of seat provides both a centered line of balance for the cyclist, and a supporting surface for the body weight of the cyclist. The configuration and location of a saddle seat form are consistent with most user requirements presented in the function of both historical and contemporary bicycles.  
         [0011]     The standards for the contemporary bicycle seat form have been established according to a number of user&#39;s needs, including those needs listed here following. 
    1. Cyclists have a need for a seat to minimize the amount of contact between the seat and the back of a cyclist&#39;s upper leg muscles, which muscles are repeatedly contracted by a cyclist in the process of pedalling a bicycle while in a seated posture.     2. Cyclists have a need for a seat which allows a cyclist to have unrestricted leg motion in the leg movements employed in pedalling a cycling vehicle.     3. Cyclists have a need for a seat which allows a cyclist the freedom of body movement to rise from, and descend onto, a cycling seat without impediment.     4. Cyclists have a need for a seat which allows positioning of a cyclist&#39;s body such that the cyclist can achieve the maximally efficient transfer of force from the legs of the cyclist to the pedals of the bicycle.     5. Cyclists have a need for a seat which allows a cyclist to descend from the seat to a standing position on the ground, while remaining in a ready-position to remount the bicycle and resume movement on the bicycle.     6. Cyclists have a need for a seat to give supplemental support to a cyclist&#39;s lateral balance while the cyclist is using a cycling vehicle in motion. 
 
 There can be additional related needs for a cyclist which needs can indicate additional standards for both function and comfort in determining an improved form of seating support for cycling vehicles. 
   
 
         [0018]     For more than a century the predominant saddle form of cycling seats has been accepted as sufficiently fulfilling the majority of seating needs for cyclists. There exist particular difficulties in existing seat forms that have not been remedied by the existing art. One difficulty of the existing art is the discomfort for the user of a typical saddle type of seat, that results from the pressure that concentrates in the area of the pubic symphasis, between the user&#39;s legs. A second difficulty of saddle type seats is that of remaining seated while inclining the body to a posture sufficiently forward on the seat that the cyclist&#39;s legs can more effectively apply increased force to the pedals of the bicycle. A third difficulty of saddle type seats is that saddle seats provide no stabilizing contact with the body of a cyclist when a cyclist is pedalling a cycling vehicle in an erect posture. Attempts at resurfacing and configurally modifying the saddle form of seats have achieved varying degrees of success in relieving discomfort caused to cyclists by the saddle form of seat.  
         [0019]     Because bicycles have most commonly served as recreational vehicles, a lesser level of seating support has generally been accepted as adequate for the purposes of cycling vehicles. Attempts have increasingly been made to promote cycling vehicles to serve the purpose of personal transportation. Efforts to apply cycling to the purpose of personal transportation have raised awareness of the need for improvements in the function and comfort of cycle seating. It is in the understanding of new and higher standards for the function and comfort of cycle seating that new and better improvements in cycle seating can be set forth over the existing art of the field.  
         [0020]     Existing attempts at alternative seat forms have frequently combined improvement by one standard of seat function with a concommitant decline according to a different standard of use for cycle seating. In the prior art, there is seen neither a complete understanding of, nor a complete integration of, a system of support for the body of a cyclist. The art of the present invention meets particular standards of seating support, which standards have been previously recognized in numerous other and existing inventions. Examples of prior art inventions, which inventions address standards for body support related to the purposes of the present invention are listed here following.  
         [0021]     1. Examples of patent content attempting a supported body posture for improving pedalling efficiency include the following:  
                                       Tsuge   U.S. Pat. No.: U.S. Pat. No. 6,631,948 B1, issued Oct. 14, 2003       Yifrah   Int. Pub. No.: WO2004/007270 A1, published Jan. 22, 2004       and       Golan       Urban   U.S. Pub. No.: US2004/0051274 A1, published Mar. 18, 2004                  
 
         [0022]     2. Examples of patent content attempting the implementation of an anterior support for a forward-leaning posture include the following:  
                                                       Reyes   U.S. Pat. No.: 5,669,860, issued Sep. 23, 1997           Clark   U.S. Pat. No.: 5,971,485, issued Oct. 26, 1999           Judkins   U.S. Pat. No.: 6,131,935, issued Oct. 17, 2000                      
 
         [0023]     3. Examples of patent content attempting the inclusion of ergonomic considerations in an anterior torso support include the following:  
                                       Workman   U.S. Pub. No.: US2002/0121755 A1, published Sep. 05, 2002       et al.       Kastarlak   U.S. Pub. No.: US2004/0056519 A1, published Mar. 25, 2004       Kropa   U.S. Pub. No.: US2004/0245836 A1, published Dec. 09, 2004                  
    4. An example of patent content proposing a posterior support with a raised and centered ridge with concave curved sides includes the following: 
        Terranova—U.S. Pat. No. 4,773,705, issued Sep. 27, 1988    
       
 
         [0026]     5. Examples of patent content proposing the use of an angled plane of support in a posterior application include the following:  
                                       White   U.S. Pat. No.: U.S. Pat. No. 6,361,108 B1, issued Mar. 26, 2002       Schmidt   U.S. Pat. No.: U.S. Pat. No. 6,805,322 B2, issued Oct. 19, 2004                  
 
         [0027]     The current state of the art of cycle seating can be related to the current state of analysis of cycle seating. The discomfort associated with saddle types of bicycle seats is conventionally described as being caused by the downward force of a user&#39;s body weight on the surface of a cycle seat. As a cyclist moves further forward on a saddle type of seat, the seat provides a decreasing area of supporting surface for a cyclist. A result of a changing area of seating surface is that a cyclist&#39;s body weight is supported by varying areas of seating surface during the use of a typical saddle type of seat. There exists a more complete and precise description of the cause for a cyclist&#39;s discomfort in the use of a saddle type of seat. This description, being both more complete and more precise, leads to improvements in support for the body of a cyclist, which improvements are beyond the art of existing seat forms.  
         [0028]     It is fundamental to the present invention to formulate a more complete and precise understanding of the seating needs that are most appropriate to the body of a cyclist. It is a purpose of the present invention to provide a seating system, which system accomplishes both a more effective and a more integrally resolved system of support for the body of a cyclist.  
       BRIEF SUMMARY OF THE INVENTION  
       [0029]     The present embodiment of the invention solves the difficulty of providing cycling seating, which seating combines improvements of both comfort and utility over the prior art of the field. The present invention of a seating system results from a refinement in the understanding of a cyclist&#39;s need for body support when a cyclist is engaged in the movements required to operate a cycling vehicle. The present invention provides support for a cyclist in two seperate locations on the body of the cyclist. One surface of support contacts the inferior posterior area of the hips of a cyclist. The second supporting surface contacts the cyclist along a band of support across the anterior face of a cyclist&#39;s waist. The combination of both posterior and anterior support holds the body of a cyclist in a stable position, without the need for a weight-bearing surface to be placed between the legs of a cyclist.  
         [0030]     The rear support for the cyclist is in the form of a posterior support device. The posterior support surface contacts the cyclist at the inferior posterior prominences of the ischial bones, above the backs of the legs of the cyclist. The posterior support device includes no forward projecting seat horn for the purpose of body support. Such a seat horn is the source of pressure on the perineum of the cyclist. On the configuration of the posterior support surface is a raised and centered ridge. The shape of the ridge contacts the body of the cyclist between the gluteus maximus muscles and just below the inferior tip of the coccyx bone.  
         [0031]     The assembly of component parts for the posterior support device is similar to the assembly of component parts found in the majority of contemporary saddle type bicycle seats. The support surface is an assembly of three materials together; a plastic base platform is surfaced with a layer of foam and a fabric cover is fitted over both the foam layer and the plastic platform. Attached to the underside of the plastic platform is a dual rail carriage made of structural rods. This type of dual rod carriage is similar to the conventional attachment structure, which type of structure is a standardized convention in the bicycle industry. The dual rod carriage allows the posterior support device to be attached to the top of a bicycle seat stem by the application of a clamping device. The clamping device is also of a standardized type with characteristics conventional within the bicycle industry.  
         [0032]     The front support for the body of a cyclist comes from an anterior support device. The front surface of support for the cyclist is a concave band of support across the front of the waist of the cyclist. The concave waist support is made up of two lateral pads and a medial surface located between the lateral pads. The band of the concave waist support is located on, and between, the anterior crests of the illiac bones of the cyclist. The lateral pads are positioned to contact with, and shaped to conform to, the faces of the illiac crests. A supplemental medial support surface is located between the lateral pads; the medial support surface augments support of the user&#39;s body weight along a width of line across the abdomen. The line of contact of the medial surface is at the bottom edge of the abdominal fat pad, which line of contact is equidistant between the navel and the superior surface of the bones of the pubic symphasis.  
         [0033]     The assembly of parts for the anterior support device are herein described, beginning with the concave waist support. The anterior support device is held in place by an assembly of adjustable parts, which parts are connected to the cross bars of the frame of a bicycle. The surfaces of the concave waist support are held together by a waist support plate, which plate extends across the width of a cyclist&#39;s hips. The waist support plate allows for the adjustable positioning of the surfaces of the concave waist support. The waist support plate is connected to an length-adjustable extension bar. The extension bar descends into an arcing tube. The arcing tube is movable in an arcing pattern of both upward and downward movement. The arcing tube, being connected by parts to the concave waist supports, is caused to arc up and down with the torso of a cyclist, as the cyclist rises from, and descends onto, the posterior support surface. The arcing tube moves within the limits of the arc guides, which guides are located near the upper cross bar of the bicycle. The arc guides are secured to the cross bars of the bicycle frame by the vertical tubes, which tubes are positioned on either side of the cross bars of the bicycle frame.  
         [0034]     The functional service of the seating system is described herein following. When a cyclist is in a seated posture, the concave waist support is in a descended position. The concave waist support, in the descended position, provides an angle of support upward and back to the waist of the cyclist. In counter directional support, the posterior support surface provides an angle of support upward and forward at the inferior posterior surfaces of the hips of the cyclist. Together, the anterior and posterior support devices combine angles of support to hold the body of the cyclist stable when the cyclist is in a seated posture.  
         [0035]     The functional service of the seating system is further described herein following. When a cyclist rises from the posterior support surface to move into a standing posture for cycling, the concave waist support rises up and forward along with the rising and forward movement of the hips of the cyclist. When a cyclist is cycling in a standing posture the concave waist support continues to provide support for the body of the cyclist, as the cyclist is able to lean forward into the concave waist support. When a cyclist returns to a seated posture, the anterior waist support may be left in an upright position; the anterior waist support may alternatively be dropped back downward to a descended position, in which position the waist support resumes giving support to the body of a cyclist in a seated posture.  
         [0036]     The mechanics of movement for the anterior support device are described herein following. At the base of the arcing tube is located a spring hinge with a fixed axle. The directional bias of the spring hinge is toward the descended position, where the anterior support is set against the waist of the cyclist. The anterior waist support must be manually released from both the raised forward, and the lowered back positions, by the cyclist. The anterior waist support is released by act of the cyclist pressing the release lever for the waist support. The release lever is located on the bicycle handle bars.  
         [0037]     There are numerous advantages found in, and original to, the present invention. The forward inclination in seating posture induced for a cyclist by the present seating system results in improvements in body balance and pedalling force over postures induced by the existing art of the field. The present invention eliminates difficulties of perineal and leg discomfort, which discomfort results from points of surface contact with the body of a cyclist, when a cyclist is seated on existing cycling seats. When a cyclist is cycling in a standing posture, the present invention provides additional advantages of function and comfort over existing cycling seats. A cyclist cycling in a standing posture is able to employ the anterior waist support as a surface against which the cyclist may lean varying amounts of body weight. Leaning against the anterior support surface adds efficiency to pedalling movements by allowing the cyclist to vary the amount of body weight on the pedals, and to vary the angle of incline of the body while pedalling. Supporting the body weight of a cyclist in both standing and seated pedalling postures improves cycling efficiency by relieving the arms and shoulders of the work of supporting the upper body and the work of holding the bicycle frame in opposition to side to side movement during pedalling. The oblique angles of support provided by the anterior and posterior support surfaces create a cradling effect on the hips of the cyclist and diminish the level of impact forces at the seating surfaces. Impact forces at the seating surfaces of bicycles are the result of cycling over irregular conditions on the surface of the ground.  
         [0038]     The ergonomic advantages of the anterior waist support result from the calculated positioning of the supporting surfaces against the front of the torso of a cyclist. The positioning and the concave shape of the lateral support pads of the concave waist support are determined according to the prominences of the illiac crests. The positioning of the lateral pads avoids interference with muscle functions, and results in stable support for the torso of a cyclist. The lateral pad locations permit a full range of torso movement for seated cycling, which range is from a backward leaning posture to a bent forward posture. The location of the supplemental medial support surface of the concave waist support is calculated to avoid abdominal surfaces, which surfaces effect discomfort when receiving contacting pressure. The lower abdominal wall, just above the pubic symphasis, contains organs of digestion and reproduction, which organs are sensitive to external pressure. The bones of the pubic symphasis are located at the base of the lower abdomen. The bones of the pubic symphasis do not sustain contacting pressure without resulting in discomfort at the location of the contacting pressure. The medial support also avoids contact with the upper abdominal wall, which abdominal wall must be left free to expand and contract without impediment, in order for full respiratory function to be allowed. Analysis of the anatomy of the anterior torso indicates an optimal line of placement for anterior supports, which line of placement allows for both comfort and a full range of necessary movement for a cyclist. The indicated line of placement for supports is the line of supports employed in the anterior support device of the present invention.  
         [0039]     The present invention provides the effects of stability and comfort for a cyclist, by establishing a secure support for the positioning of the torso of the cyclist on the cycling vehicle. By being established in a stabile position on the cycling vehicle, the cyclist is able to operate the cycling vehicle with a minimum of unnecessary body movements; the cyclist is also able to achieve a more efficient transfer of pedalling force; the cyclist further experiences an increased sense of integrated involvement in the operation of a cycling vehicle.  
     
    
     BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS  
       [0040]     The preferred embodiment of the present invention, including the nature and purposes of the present invention, will be better understood by making reference to the hereinafter appended drawings, in conjunction with the ‘Detailed Description of the Invention’, also appended hereinafter. The drawings of the present invention, wherein like designations denote like elements of the invention, are listed here following in which:  
         [0041]      FIG. 1  depicts a lateral elevation view of a bicycle, on which bicycle is installed the present seating system, which seating system is depicted in a position to support the torso of a cyclist, when the posture of the cyclist is a posture of being seated with an upright body position while riding on the bicycle, in accordance with the present invention;  
         [0042]      FIG. 2  depicts a lateral elevation view of a bicycle, on which bicycle is installed the present seating system, which seating system is depicted in a position to support the torso of a cyclist when the posture of the cyclist is a posture of being seated with a forward-leaning body position while riding on the bicycle, in accordance with the present invention;  
         [0043]      FIG. 3  depicts a lateral elevation view of a bicycle, on which bicycle is installed the present seating system, which seating system is depicted in a position supporting the torso of a cyclist when the posture of the cyclist is a posture of standing with an upright body position, while riding on the bicycle, in accordance with the present invention;  
         [0044]      FIG. 4  depicts a lateral elevation view of a bicycle, on which bicycle is installed the present seating system, which seating system is depicted in a position to support the torso of a cyclist when the posture of the cyclist is a posture of standing with a forward-leaning body position, while riding on the bicycle, in accordance with the present invention;  
         [0045]      FIG. 5  depicts a plan view of the three seperate pads of the anterior support device of the seating system, this plan view being correspondingly aligned on sheet number  3 / 5 , in graphic relationship directly above the elevation view of  FIG. 6 , in accordance with the present invention;  
         [0046]      FIG. 6  depicts a posterior elevation view of the three seperate pads of the anterior support device of the seating system, this elevation view being correspondingly aligned on sheet number  3 / 5 , in a graphic relationship directly below the plan view of  FIG. 5 , and in a graphic relationship directly beside the elevation view of  FIG. 7 , in accordance with the present invention;  
         [0047]      FIG. 7  depicts an anterior elevation view of a human torso, on which torso is indicated the areas of surface contact generally made on the torso by the three component pads of the anterior support device of the seating system, this elevation view being correspondingly aligned on sheet number  3 / 5 , in a graphic relationship directly beside the posterior elevation view of  FIG. 6 , in accordance with the present invention;  
         [0048]      FIG. 8  depicts a plan view of the single support surface of the posterior support device of the seating system, this plan view being correspondingly aligned on sheet number  3 / 5 , in a graphic relationship directly above the elevation view of  FIG. 9 , in accordance with the present invention;  
         [0049]      FIG. 9  depicts a lateral elevation view of the posterior support device of the seating system, this elevation view being correspondingly aligned on sheet number  3 / 5 , in a graphic relationship directly below the plan view of  FIG. 8 , and in a graphic relationship directly beside the lateral section view of  FIG. 10 , in accordance with the present invention;  
         [0050]      FIG. 10  depicts a lateral section view of the anterior and posterior support forms of the seating system, which support forms are depicted in the general relationship of the support forms to the anatomy of the torso of a cyclist which cyclist is in a seated posture on the seating system, this section view being correspondingly aligned on sheet number  3 / 5 , in a graphic relationship directly beside the elevation view of  FIG. 9 , in accordance with the present invention;  
         [0051]      FIG. 11  depicts a sectional plan view of the anterior support device of the seating system, this sectional plan view being correspondingly aligned on sheet number  4 / 5 , in a graphic relationship directly above the posterior section view of  FIG. 12 , in accordance with the present invention;  
         [0052]      FIG. 12  depicts a posterior section view of the anterior support device of the seating system, this posterior section view being correspondingly aligned on sheet number  4 / 5  in a graphic relationship directly below the sectional plan view of  FIG. 11 , and in a graphic relationship directly beside the lateral section view of  FIG. 13 , in accordance with the present invention;  
         [0053]      FIG. 13  depicts a lateral section view of the anterior support device of the seating system, this lateral section view being correspondingly aligned on sheet number  4 / 5  in a graphic relationship directly beside the posterior section view of  FIG. 12 , in accordance with the present invention;  
         [0054]      FIG. 14  depicts an axonometric exploded view as seen from the above right rear viewing position, which view is of the seating system positioned in relationship to the seat post, cross-bars and handle bar of a bicycle and which view is of a first preferred embodiment of the present invention.  
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0055]     Referring to the drawings in detail, wherein like numerals indicate like elements, attention is directed to  FIG. 1 , being a lateral elevation view of the present invention  21  of a seating system installed on a bicycle  25  and being used by a cyclist  41  in a seated-upright posture, and which cyclist  41  is being supported by the present invention  21 .  FIG. 1  depicts the relationship of the two principal parts of the present invention  21  which parts are the posterior support device  56  and the anterior support device  71 . The posterior support device  56  is depicted being connected to a conventional bicycle seat stem  27  by the use of an industry-standard dual rail bicycle seat clamp  28 . The anterior support device  71  is depicted installed on the upper cross-bar  29  and the lower cross-bar  30  of a bicycle frame  26 . It is seen that a basic principle of the present invention  21  is the arrangement of support for the hips  42  of a seated cyclist  41  at a posterior upward angle  57  from the posterior support surface  58  while simultaneously providing support for the hips  42  of a cyclist  41  at an anterior upward angle  72  from the anterior waist buttress  73 . It is further a principle of the present invention  21  that the hips  42  of a cyclist  41  can be analyzed as a generally cylindrical form, which form can be stably supported by the placement of an upward angle of posterior support  57  and an upward angle of anterior support  72  on either underside of a cylindrical form. The posterior support surface  58  and the concave waist support  74  combine to form a stable cradling of the cyclist&#39;s  41  hips  42 . The drawing of  FIG. 1  further shows that this analysis of general anatomical conditions leads to an arrangement of the points of contact on the cyclist&#39;s  41  hips  42 , which points of contact are an improvement on the existing art, which art conventionally relies on a vertically directed support of the cyclist  41  by placement of a support between the legs  47  of the cyclist  41 . A significant improvement of the present invention  21  over existing art is that the cyclist  41  is securely supported in a forward-leaning posture, which posture is more highly efficient for the body of a cyclist  41  in pedalling a bicycle  25 . The anterior support device  71  also relieves other body muscles of doing the work of supporting the cyclist&#39;s  41  upper body weight, which other muscles are those of the shoulders  43  and to a lesser degree, the muscles of the back  37  and the abdomen  49 . The present invention  21  also eliminates the crushing effect on the soft tissue of the cyclist&#39;s  41  perineum  44 , which soft tissue is compressed against the bones of the pubic symphasis  45  when using standard saddle type seats of the existing art. The crushing effect at the perineum  44  occurs in the use of conventional saddle type seats when the cyclist&#39;s  41  hips  42  rotate forward to cause the cyclist&#39;s  41  body weight to be supported on the forward horn of a saddle type seat. It is the anterior angle of support  72  applied by the concave waist support  74  at the hips  42  of a cyclist  41  which support  74  upholds the forward rotation of the hips  42  and which anterior support  74  achieves an improved alternative support location to the predominant support of the existing art which support is located between the legs  47  of the cyclist  41 .  
         [0056]     In the drawing of  FIG. 2  being a lateral elevation of the present invention  21  installed on a conventional bicycle frame  26  and being used by a cyclist  41  in a posture of being seated and bent forward, it is depicted how the present invention  21  supports the bent-forward body posture of a seated cyclist  41 . The bent-forward body posture is an alternative posture for a seated cyclist  41  and is a posture used for more strenuous pedalling by a cyclist  41  while remaining seated. The hips  42  rotate forward and the hips  42  remain supported by the concave waist support  74  of the anterior support device  71 . The inclined angle of the posterior support surface  58  remains in support of the inferior surfaces of the cyclist&#39;s  41  ischial bones  46  while the posterior support surface  58  avoids contact with the cyclist&#39;s  41  perineum  44  because the posterior support surface  58  does not make use of a conventional type of seat horn to support the cyclist  41 . The drawing of  FIG. 2  further depicts how the concave waist support  74  acts to stabilize the hips  42  of the cyclist  41 . The concave waist support  74  provides a stable line of support across the cyclist&#39;s  41  hips  42 , against which support a cyclist  41  can leverage body weight in order to hold a fixed body position when increasing downward force on the bicycle  25  pedals  31 . The concave waist support  74  also provides support for the cyclist&#39;s  41  upper body weight and relieves the shoulders  43  of the work of supporting the upper body weight. Providing support for the cyclist&#39;s  41  upper body weight also reduces the need for the cyclist  41  to rock from side to side and pull up alternately on the bicycle  25  handle bars  32  with either arm in order to increase downward force on each pedal  31  stroke being made by the legs  47  of the cyclist  41 .  
         [0057]     In the drawing of  FIG. 3 , being a lateral elevation view of a bicycle  25  on which bicycle  25  is installed the present invention  21 , it is shown how the present invention  21  moves to a forward position to support a standing cyclist  41  in an upright body posture which cyclist  41  is operating a bicycle  25 . When a cyclist  41  moves from a seated riding posture to a standing riding posture it is necessary to press the spring release lever  75  of the anterior support system  71  which release lever  75  is attached to the handle bars  32  of the bicycle  25 . The release lever  75  frees the anterior support buttress  73  to rotate forward  76  with the hips  42  of the cyclist  41  as the cyclist  41  moves to a standing posture. The anterior support buttress  73  stops and remains fixed at the forward position to support the cyclist&#39;s  41  hips  42  when the cyclist  41  is in a standing posture. The support buttress will remain in a forward position to further allow the cyclist  41  to stop the bicycle  25  and descend to a standing posture on the ground while the legs  47  of the cyclist  41  straddle the upper cross-bar  29  of the bicycle  25 . There are also advantages of utility seen in the cyclist&#39;s  41  standing riding posture depicted in  FIG. 3 . One advantage of utility is that the cyclist  41  can balance against the raised-up concave waist support  74  to reduce the extent of side to side rocking which occurs in standing riding of a bicycle  25  as the cyclist&#39;s  41  body weight must move alternately from a pedal  31  on one side of the bicycle  25  to the pedal  31  on the other side of the bicycle  25 . A second advantage of utility is that the concave waist support  74  can be used as a surface of resistance against which the cyclist&#39;s  41  hips  42  can press in the act of pushing down and back on the bicycle  25  pedals  31 . A third advantage of utility is that the cyclist&#39;s  41  shoulders  43  have a reduced burden of work in supporting the cyclist&#39;s  41  upper body weight. The anterior support buttress  73  may also be set in a forward position to the point that the support  74  is not contacted by a cyclist&#39;s  41  body when riding a bicycle  25  in a standing body posture.  
         [0058]     In the drawing of  FIG. 4  is depicted a lateral elevation view of a bicycle  25  on which bicycle  25  is installed the present invention  21 , which seating system  21  is being used by a cyclist  41  in a standing and bent-forward body posture. The forward position of the anterior support buttress  73  is the same buttress  73  position depicted in  FIG. 3 . The forward position of the anterior support buttress  73  is accomplished by the same means as those means described within the description for  FIG. 3  above. The spring release lever  75  is also used in the same way as the use indicated in the description accompanying  FIG. 3  which use permits the anterior support buttress  73  to move forward from the held-back position used to support a seated cyclist  41 . In the depiction of  FIG. 4  is seen the forth principal body posture used by a cyclist  41  in riding a bicycle  25 . The body posture is that of a cyclist  41  standing on the pedals  31  in a bent-forward body posture. The seating system  21  affords additional advantages of use to the cyclist  41  in the standing bent-forward posture. The principal advantage of use in the standing bent-forward posture as allowed by the seating system  21  results from the opportunity for the thorax  48  of the cyclist  41  to rest on the concave waist support  74  of the anterior support device  71 . In using the concave waist support  74  as a support balance the cyclist  41  can adjust the amount of body weight on the pedals  31  while operating the bicycle  25  in the standing bent-forward posture. Because the cyclist&#39;s  41  abdomen  49  can not effectively bear weight and maintain freedom of movement for breathing, the concave waist support  74  is best positioned forward on the cyclist&#39;s  41  thorax  48  to reach the location of the five false ribs  50 , which false ribs  50  can support body weight without encumbering abdominal  49  breathing contractions.  
         [0059]     In the drawing of  FIG. 5 , being a plan view of the two anterior lateral support pads  77  and the anterior medial support pad  78  of the concave waist support  74 , is shown the configured relationship of these three support pads  77   78  as seen from above the pads  77   78 . The lateral pads  77  are seen to have a concave shape, which shape is established to conform to the shape of the crests of the anterior superior illiac spines  51 , which illiac crests  51  are the points of supporting contact for the lateral pads  77 . The anterior lateral pads  77  can also be moved laterally  79  to fit differing spreads in the illiac crests  51  of differing cyclists  41 . The medial anterior pad  78  has a concave shape to receive the convex form of a cyclist&#39;s  41  abdomen  49 . The medial anterior pad  78  can be moved both forward and backward  80  in order to accommodate the differing abdominal  49  protrusions of differing cyclists.  
         [0060]     In the drawing of  FIG. 6 , being a posterior elevation view of the two anterior lateral pads  77  and the anterior medial pad  78  of the concave waist support  74 , is shown the elevational relationship of these pads  77   78 . The lateral pads  77  are concavely shaped to receive the shape of the illiac crests  51  of the cyclist&#39;s  41  hips  42 . The lateral pads  77  also move laterally  79  to adjust to the width of the illiac crests  51  of differing cyclists  41 . The medial pad  78  is concave on the top surface to conform to the shape of the abdomen  49  beneath the navel  52 . The medial pad  78  is also rounded on the inferior face of the pad  78  to provide a bearing-surface for the cyclist  41  operating a bicycle  25  in a forward-leaning standing posture while the concave waist support  74  is in a forward and elevated position.  
         [0061]     In the drawing of  FIG. 7 , being an anterior elevational view, is depicted the anterior view of the human torso  53  on which torso  53  is indicated the three principal areas of supporting contact made on the torso  53  by the concave waist support  74  of the anterior support device  71 . The lateral support pads  77  make contact with the illiac crests  51  of the cyclist&#39;s  41  hips  42 . The lateral support pads  77  are formed concavely to make a fitted support around the convex protuberances of the illiac crests  51 . The lateral support pads  77  also curve around the medial faces of the illiac crests  51  to provide support in the areas between the illiac crests  51  and the lateral edges of the rectus abdominus muscle  54 . The lateral pads  77  are further formed to make clearance on the inferior edges of the lateral pads  77  for the anterior muscles of the upper thighs  55  where these muscles attach to the illiac crests  51  and also where these thigh muscles  55  attach to the inguinal ligament  40 , which ligament  40  extends from the illiac crests  51  to the pubic symphasis  45 . The lateral pads  77  are the primary surfaces of anterior support for the seating system  21 . A secondary surface of support is the medial support pad  78  of the anterior support device  71 . The lower abdomen  49  has a more limited capacity to support body weight because of the sensitive digestive and reproductive organs located in the abdomen  49 . The pubic symphasis  45  is also sensitive to weight bearing and results in pain under contact of small forces. The top surface of the medial pad  78  is located at the lower edge of the line of abdominal fat  39  which line  39  is midway between the top of the pubic symphasis  45  and the navel  52 . The bottom edge of the medial pad  78  remains clear of the top of the pubic symphasis  45 . The medial pad  78  crosses horizontally over the abdomen  49  between the medial edges of the lateral support pads  77 . The areas supported by the medial and lateral pads  77   78  are areas on the principal line of support of the anterior support device  71  of the present invention  21 .  
         [0062]     In the drawing of  FIG. 8 , being a plan view of the superior surface  58  of the posterior support device  56 , is depicted the plan of the perimeter profile and the support surface form of the posterior support device  56 . The support surface  58  has a wide area  59  to support the inferior faces of the ischial bones  46 . The wide surface area  59  narrows in concave curves to a rounded center point  61 . The concave curved edges  60  allow clearance for the posterior muscles of the leg  47 . Aligned on the longitudinal center of the posterior support device  56  is a slightly raised ridge  62  surface. Both the rounded tip  61  and the central ridge  62  are useful for center positioning on the posterior support surface  58 . The central ridge  62  is also useful for the purpose of increasing the area of supporting surface  58  which surface area  58  makes supporting contact with the inferior surfaces of the ischial bones  46 .  
         [0063]     In the drawing of  FIG. 9 , being a lateral elevation view of the posterior support device  56 , is depicted the form of the support surface  58  and the underside dual-rods  67  of the posterior support device  56 . The wide area  59  of the support surface  58  is seen to curve down laterally to either side of the longitudinal center area  63 . The support surface  58  is seen to curve convexly along the longitudinal center area  63  from the back edge of the surface  58  to the rounded tip  61  at the front edge of the support surface  58 . The rounded shape of the support surface  58  allows a greater range of rotational positioning of the posterior support surface  58  to increase the range of seating angles  68  which angles  68  coordinate with the positioning of the anterior concave waist support  74  of the anterior support device  71 . Because the seating system  21  does not rely on a conventional saddle type seat horn for vertically directed support of a cyclist  41 , it is comfortable to add a raised central ridge surface  62  to the support surface  58  to make a stable seating surface by also contacting the medial inferior edges of the ischial bones  46  at a location just forward the anus  38 , while avoiding the soft tissues of the perineum  44 . The underside of the support platform  64  is connected to an industry standard dual rod carriage  67  for attachment to an industry standard universal type seat clamp  28 . The dual rod carriage  67  can be extended further back behind the support surface  58  to allow the posterior support device  56  to be comfortably moved further forward on the bicycle frame  26 . Forward locations for the posterior support device  56  are still comfortable because of the absence of a conventional seat horn. A conventional seat horn makes seat locations more uncomfortable the further forward the seat locations are placed on the bicycle  25 .  
         [0064]     In the drawing of  FIG. 10 , being a lateral sectional view of the posterior support device  56  and the concave waist support  74  of the anterior support device  71 , it is depicted the relationship of the seating system  21  to the hips  42  of an occupying cyclist  41 . The parts of the posterior support device  56  are seen in this sectional drawing. The dual rod carriage  67  is seen fastened to the underside of the plastic platform  64 . The dual rod carriage  67  is attached to a conventional universal type clamp  28  which clamp  28  is attached to a bicycle seat stem  27 . The posterior support surface  58  is completed with a foam layer  65  and a fabric cover  66  over the plastic platform  64 . The position of the plastic platform  64  in relationship to the inferior surfaces of the ischial bones  46  is seen as the relationship is set forth under the description for the drawing of  FIG. 9 . The top surface of the concave waist support  74  is depicted in relationship to the cyclist&#39;s  41  abdomen  49  at a point approximately equidistant between the navel  52  and the top of the pubic symphasis  45 . Also seen depicted are the parts of the upper end of the anterior support buttress  73  connecting to the concave waist support  74 , and the crest of the illiac bone  51  is included in the depiction. The stabilizing effect of the combination of the posterior support angle  57  with the anterior support angle  72  to accomplish a comfortable and supportive seating system  21  can be seen in the depiction of  FIG. 10 .  
         [0065]     In the drawing of  FIG. 11 , being a sectional plan view of the anterior support device  71 , is depicted the assembled parts of the anterior support device  71  as seen from above. The waist support plate  97  is seen to contain the medial T-plate  102  which plate  102  is shown as being cut in section. The medial pad  78  and the lateral pads  77  are located above the cut line of the sectional view, and the pads  77   78  are depicted being dotted in above locations. Below the waist plate  97  is seen the arc guides  88  and the stop rods  89  which rods  89  are set into the arc guides  88  to limit the forward and backward arc  76  of the buttress assembly  73 . The release cable  112  connecting to the buttress assembly  73  is seen originating at the lever release  75  on the bicycle handle bar  32 .  
         [0066]     In the drawing of  FIG. 12 , being a posterior sectional view of the anterior support device  71  of the seating system  21 , it is depicted the assembled parts of the anterior support device  71  as seen from the viewing direction of a user cyclist  41 . It is seen that the lateral pads  77  are width adjustable  79  in connections  109  to the waist support plate  97 . The medial pad  78  is depth adjustable  80  with the movable medial sleeve  106  on the medial T-plate  102 , being slip connected with a pressure screw  108 . The rotational adjustability  100  of the waist support plate  97  is seen at the pivot connection  98  to the extension bar  91 . The positioning of the arcing tube  92  between the arcing guides is seen, as are the lateral spacers  118  between the arcing guides  88 . Also seen is the square-bar axle  87  for stable movement  76  of the arcing tube  92 . The release lever  75  and release cable  112 , which parts effect the release of the arcing tube&#39;s  92  movement  76 , are depicted. The assembly of the upper compression fittings  82  and the lower compression fittings  83  onto the vertical tubes  83  are seen in relationship to the attachment of the vertical tubes  81  to the cross bars  29   30  of a bicycle frame  26  which tubes  81  are fixed in position by use of compression screws  85 .  
         [0067]     In the drawing of  FIG. 13 , being a lateral sectional view of the anterior support device  71 , it is depicted how the parts of the anterior support device  71  function to support a cyclist  41  in the two principal postures of cycling. The two principal postures are a seated posture and a standing posture. In support of a seated cyclist  41  the support buttress  73  is automatically rotated back  76  by effect of the spring hinge  93 . The double latch  114  strikes and snaps onto the rear stop rod  89 . The latch  114  is held in place by effect of the set spring  115  located on the arcing tube  92 . The concave waist support  74  is then fixed in position to give forward support  72  to a seated cyclist  41 . In order for the cyclist  41  to move into a standing posture the release lever  75  is pressed, the release cable  112  retracts  120 , and the double-sided latch  114  lifts  121  from the rear stop rod  89 . As the cyclist  41  rises to a standing posture, the cyclist&#39;s  41  hips  42  press against the concave waist support  74  and cause the support buttress  73  to rotate forward  76 . When the arcing tube  92  strikes the forward stop rod  89  the latch spring  115  causes the double-sided latch  114  to press onto the forward stop rod  89 . The forward stop rod  89  holds the support buttress  73  in a forward posiiton. When the cyclist  41  returns to a seated posture, the buttress assembly  73  may be left in a forward position, or the buttress assembly  73  may be returned  76  to a rear supporting position  72 . To return the buttress assembly  73  to a rear supporting position  72 , the release lever  75  is pressed. The pressing of the release lever  75  pulls  120  the release cable  112  and releases the buttress assembly  73  by retracting  121  the latch  114  from the forward stop rod  89 . The spring hinge  93  at the rotational axle  87  of the arcing tube  92  then causes the buttress assembly  73  to arc back  76  to a latched position at the rear stop rod  89 .  
         [0068]     In the drawing of  FIG. 14 , being an exploded axonometric view of the parts of the seating system  21 , it is depicted a view of the seating system  21  as seen from a point of view above and to the rear right side of the present invention  21 . The posterior support device  56  is shown in assembled form. The dual rod carriage  67  is in fixed attachment to the underside of the support surface  58 . The support surface  58  comprises a formed plastic platform  64 , a foam layer  65  and a fabric cover  66 . The dual rod carriage  67  is shown attached to a universal seat clamp  28 , which clamp  28  is affixed to a bicycle  25  seat stem  27  which stem  27  is attached to a bicycle frame  26 . The rotational adjustability  68  for the posterior angle of support  57  is depicted.  
         [0069]     Further in  FIG. 14 , the anterior support device  71  is shown in an exploded view. The anterior device  71  includes vertical tubes  81  positioned on either side of a bicycle&#39;s  25  cross bars  29   30 . The upper pair of plastic compression fittings  82  and a lower pair of compression fittings  83  slide along the length of the vertical tubes  81 . The vertical tubes  81  have holes  84  to allow for varied positioning on a bicycle&#39;s  25  cross bars  29   30 . The vertical tubes  81  are fixed to the bicycle  25  cross bars  29   30  with compression screws and nuts  85 , which screws  85  pass through the compression fittings  82   83  and through the holes  84  in the vertical tubes  81  in order to secure the vertical tubes  81  in fixed positions on the bicycle  25  cross bars  29   30 . Plastic washers  86  for the compression screws  85  protect the finish surface of the bicycle  25  cross bars  29   30 . The medial faces of the compression fittings  83  are formed to fit to the size and angle of varying bicycle  25  cross bars  29   30 . The vertical tubes  81  are held together in parallel alignment by a horizontally-sliding square axle bar  87  which bar  87  allows the space between the vertical tubes  81  to be adjustable to fit the widths of varying bicycle  25  cross bars  29   30 . The tops of the vertical tubes  81  extend into the arc guides  88  which guides  88  control the range of motion of the support buttress  73 . The forward and backward limits of motion  76  of the buttress  73  are set by movable stop rods  89  between the arc guides  88 . The stop rods  89  are fixed in position by two rod screws and nuts  90 . The length of the stop rods  89  is dimensioned according to the width of the bicycle  25  cross bars  29   30 .  
         [0070]     Also in  FIG. 14  it is depicted that the support buttress  73  is made up of the concave waist support  74 , the extension bar  91  and the arcing tube  92 . The arcing tube  92  connects to the square axle bar  87 . At the base of the arcing tube  92  is the spring hinge  93  which hinge  93  rotates  94  the arcing tube  92  toward the posterior support device  56 . At the top of the arcing tube  92  are located two compression tabs  95  and a tab screw and nut  96  which compression tabs  95  fix the length of the movable  101  extension bar  91 . The waist support plate  97  attaches to the top of the extension bar  91  with a pivot fitting  98 . A pivot screw and nut  99  tightens the pivot fitting  98  and secures the position of the rotationally adjustable  100  waist support plate  97 . The T-plate  102  for the medial pad  78  screws  103  to the waist support plate  97  in slots  107  for up and down adjustment  105  of the medial pad  78 . The plastic sleeve  106  for the medial pad  78  slides  107  onto the medial T-plate  102  and the sleeve  106  is fixed in position by a pressure screw  108 . The T-plate  102  and medial sleeve  106  allow for the medial pad  78  to be adjustable  80  in two directions: the direction of in and out  107  and the direction of up and down  105 . The movements  105   107  of the medial pad  78  make allowance for the medial pad  78  to accommodate varying abdominal  49  protrusions. The lateral pads  77  are width-adjustable  79  in slots  110  at the ends of the waist support plate  97 . Lateral pad  77  positions are fixed by the use of tightening screws and nuts  109 . The medial pad  78  and the two lateral pads  77  are assembled similarly to the posterior support surface  58  indicated in the description of the drawing of  FIG. 10  above. The pads  77   78  are made up of three principal parts. The base layer of the pads  77   78  are the plastic shells  64  which shells  64  include on the undersides the parts of the medial sleeve  106  and the screws  109  for the lateral pads  77 . On top of the plastic shells  64  is a layer of foam  65 . The foam  65  and the shells  64  are wrapped together by a fabric cover  66 .  
         [0071]     Finally, in  FIG. 14  it is depicted that the release of the anterior support buttress  73  to rotate  76  is caused by the spring release lever  75 . The release lever  75  is secured to the bicycle  25  handle bars  32  by a screw clamp  113 . The spring release lever  75  is connected to the double-sided latch  114  by a release cable  112 . The double-sided latch  114  is held in place by a set spring  115  and latch stops  116  located on the arcing tube  92  of the support buttress  73 . The release cable  112  is length-adjustable with a set screw  117  at the double-sided latch  114 . The lateral stability of the arcing tube  92  is controlled by the lateral spacers  118  on the axis  119  of the double-sided latch  114 .  
         [0072]     There exist numerous opportunities and possibilities for the application of additions to, and adjustments in, the preferred embodiment of the present invention  21 . Such optional additions to, and adjustments in, the preferred embodiment of the present invention  21  include, but are not limited to, the enumerated examples of additions and adjustments here following; 
    1. The preferred embodiment of the seating system  21  includes descriptions of a full range of adjustability in the positioning and angles of direction of the component parts of the seating system  21 . The seating system  21  may further incorporate variations in the sizes of parts, and in the scale of the overall seating system  21 . Changes in parts sizes and in overall scale can be made for the purpose of accomplishing more suitable fits to the physical dimensions and proportions of a variety of user body types, which various body types include those of men, women and children.     2. The seating system  21  can be made in an embodiment, in which embodiment the seating system  21  is particular to, and integral with the structure or the frame  26  of an individual bicycle  25  or model of a bicycle  25 , or other device where the seating system  21  is useful.     3. The anterior support device  71  of the seating system  21  can be employed on a bicycle  25 , or in another useful application, such that the anterior waist support  74  does not move backward and downward  76  to a descended location to support the hips  42  of a cyclist  41  in a seated posture. The anterior support device  71  can be applied for the purpose of providing a surface of support  72  for a cyclist  41 , which cyclist  41  is cycling in a standing posture. The waist support  74  can retain adjustability of sizing and positioning. The function of the arcing movement  76  of the seating system  21  can be obviated in the application of the anterior waist support  74  as a fixed positional body support surface for the body of a user in a standing posture.     4. The anterior medial pad  78  movements  80  can be expanded to include the rotational movement of the medial support surface  78 , which rotation would occur by effect of surface contact with the abdomen  49  of a cyclist  41 , as the body of the cyclist  41  would ascend and descend, in the act of pedalling a bicycle  25  when the cyclist  41  is in a standing posture.     5. The medial support pad  78  can be substituted with a belt type of support surface, which belt type of support would span between the lateral support pads  77  of the anterior waist support  74 . Such a belt type of support could be lengthened or shortened between the lateral support pads  77 , which length adjustments would result in adjustability  80  in the depth and height positioning of the medial support belt. Such adjustability in the medial support belt would achieve a function of adjustability similar to the adjustability  80  of the medial support pad  78  of the preferred embodiment  21 .     6. In the anterior support device  71  of the present invention  21 , the upper compression fittings  82  and the lower compression fittings  83 , are set forth as being parts seperate parts from the vertical tube  81  parts. The upper and lower compression fittings  82   83  can be substituted with a compressible material applied to, and integral with the medial faces of the vertical tubes  81 . Such a composite of parts would similarly serve the established function of securing the location of the vertical tubes  81  on the cross bars  29   30  of a bicycle  25 .     7. In the anterior support device  71  of the present invention  21 , the forward and backward arcing movement  76  of the anterior waist support is accomplished by means of the movement of the anterior buttress assembly  73  within the arc guides  88  of the anterior device  71 . The arc guides  88  can be substituted by the more compact device of a rotating hub, which rotating hub would effect the same arcing movement as that movement  76  effected by the arc guides  88  of the preferred embodiment  21 . The forward and backward movement  76  of the anterior support buttress  73  can also be similarly accomplished by means of the linear movement of a sliding device, which sliding would substitute for the arcing movement  76  of the preferred embodiment  21 .     8. In the anterior support device  71  of the preferred embodiment  21 , it is above set forth that there exist advantages of comfort resulting from a reduction in direct vertical loading at the hips  42  of a cyclist  41 . An improved loading condition results from a combination of posterior  57  and anterior  72  directions of support for the cyclist. The jarring effects of dynamic load transfer to the hips  42  of a cyclist  41  can be further ameliorated by the incorporation of elements of flexibility in the anterior support assembly  73 . One opportunity for increasing flexibility in the anterior waist support  74  is in the introduction of flexibility into the waist support plate  97 , which flexibility would result in a level of elastic rebound for the anterior lateral pad supports  77 . A second opportunity for increasing flexibility in the anterior waist support  74  is in the addition of a spring function to the top of the extension bar  91 , which spring would be structurally integral in the line of the compressive length of the extension bar  91 . 
 
 Examples of adjustments in, and additions to, the present invention  21  are described here for the purpose of illustrating possibilities within the scope and the spirit of the invention  21 ; such examples are intended to be neither comprehensive, nor are such examples intended to be indicative of the limits of possible adjustments in, and additions to, the preferred embodiment  21  of the present invention. 
   
 
         [0081]     Numerous Characteristics and advantages of the invention  21  have been set forth in the foregoing description. The foregoing description of the preferred embodiment of the present invention  21  is presented for purposes of illustration and explanation. The spirit and scope of the present invention  21  are not limited by the embodiment described above. The above descriptions are not intended to be exhaustive, nor to limit the invention  21  to the precise form disclosed. In light of the above teachings, many modifications and variations of the invention  21  are possible. It will be understood by those skilled in the art that a variety of changes in the form and detail of the preferred embodiment may be made without departing from the principle of the present invention  21 . The disclosure anticipates changes that may be made in detail and in matters of size, shape and arrangements of parts that are within the principle of the invention  21 . The present invention  21  has been particularly shown and described with reference to a preferred embodiment of a seating system for a bicycle. Since changes and adjustments may vary to fit particular operating requirements and environments, it will be understood that the principle of the invention  21  is not limited to the specific embodiment herein described. It is understood that the herein described seating system can be used for other purposes and in other applications. The seating system can be used for a variety of equipment, such as furniture and in any application where seating or body support is appropriate. Such applications and modifications are anticipated by the present invention  21 , with details of structure, function and novel features of the invention  21 . The preferred embodiment encompasses any and all embodiments within the spirit and scope of the present invention  21 . The appended claims are for the limited purpose of declaring what is generally new and original in the purposes, means and product of the art of the present invention  21 . The spirit and scope of the present invention  21  are measured to the full extent indicated by the broadest general meaning of the terms in which the here appended claims are expressed.