Abstract:
A folding chair assembly includes a frame having side, top and bottom walls, first and second pairs of legs, a seat between the legs, a first pair of leg pivots connecting respective legs together, a second pair of leg pivots engaging a first pair of cooperating slots for connecting first leg upper ends to the frame, a third pair of leg pivots for connecting second leg lower ends to the frame, a first pair of seat pivots for connecting the seat to second leg upper ends, and a second pair of seat pivots rearward on the seat of the first seat pivots engaging a pair of cooperating slots for connecting the seat to the first leg pair, whereby the chair is foldable from an open position with seat and legs extended to a closed position with seat and legs aligned within the frame. Pivoting arm rests can be provided.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
   This application claims the benefit of Provisional Patent Application Ser. No. 60/397,273, filed Jul. 19, 2002. 

   BACKGROUND OF THE INVENTION 
   1. Technical Field 
   This invention relates generally to a folding chair and, more particularly, to a folding chair which is concealable within a relatively thin frame. 
   2. Background Art 
   In the prior art, folding chairs are well-known. The following United States patents are representative of the prior art and illustrate many of the devices that have been used in the past. 
   In Wang, U.S. Pat. No. 4,415,201, entitled “Folding Chair Having a Reversible Seat”, issued Nov. 15, 1983, a folding chair is shown with a reversible seat and having sliding grooves on the inner side of the upper legs to facilitate up and down sliding  movement of the seat while folding it for storage. 
   In Goetz, U.S. Pat. No. Des. 314,871, entitled “Foldable Chair”, issued Feb. 26, 1991, a folding chair is shown with a seat movable along grooves formed in the upper legs. 
   In Merritt et al., U.S. Pat. No. 317,402, entitled “Folding Chair”, issued May 5, 1885, a chair is shown which has two pairs of pivots and slide grooves enabling the chair to be folded flat. One set of grooves on the upper legs permits the seat back to slide therealong and the other set of grooves connecting the legs together permitting the legs to move linearly relative to each other. 
   In Howarth, U.S. Pat. No. 63,897, entitled “Folding Chair”, issued Apr. 16, 1867, a folding chair is shown with grooves formed in the upper legs for guiding movement of the seat. 
   In Hopkins, U.S. Pat. No. 326,564, entitled “Folding Chair”, issued Sep. 22, 1885, a flexible seat is supported by front and rear bars, the rear bar sliding in opposed grooves defined in spaced, upright back standards. 
   In Schmitt, U.S. Pat. No. 1,800,107, entitled “Folding Chair”, issued Apr. 7, 1931, a metal chair is shown in which the seat is provided with sliding pivot blocks that move within channels defined in the chair leg. 
   In Silverman, U.S. Pat. No. 1,704,712, entitled “Folding Chair”, issued Mar. 12, 1929, a metal chair is disclosed where the upper ends of the rear legs  have pivots sliding within grooves defined in the sides edges of the seat. 
   In Wilson, U.S. Pat. No. 162,447, entitled “Adjustable Iron Chair”, issued Apr. 20, 1875, the ends of the front legs of a chair are each slidable in a slot defined in a horizontal supporting bar. 
   The above patents illustrate a portion of the wide array of folding chairs that have been designed. Some are not durable or sturdy. Some cannot be folded completely flat to conserve storage space, while others are heavy to carry or difficult to fold and unfold. Thus, those chairs cannot be conveniently stored or concealed. Other chairs employ complex mechanisms and are costly to make. 
   BRIEF SUMMARY OF THE INVENTION 
   The present invention is directed to overcoming one or more of the problems as set forth above. 
   It is a general object of the present invention to provide a new and improved folding chair which is simple, inexpensive, compact, light, durable, sturdy, rigid, and multi-functional. 
   It is another object of the present invention to provide a folding chair which can be easily operated and can be folded or collapsed so as to have the thinnest profile possible. 
   It is an additional object of the present invention to provide a folding chair that can be concealed  in a frame and hung on a wall, thus conserving floor space, the frame acting as a conventional-type picture frame to provide a display area for artwork, advertising or other desirable images thereby. 
   It is a further object of the present invention to provide a folding chair that has no locking mechanisms, gravity holding the chair in an open, unfolded position, as well as in a closed, folded position. 
   In an exemplary embodiment of the invention, a chair is provided which can be folded and concealed within a thin rectangular frame. The frame has side walls and top and bottom walls; the chair has first and second pairs of legs and a seat positioned between the legs. The frame and chair include a pair of pivots connecting respective legs together, a pair of pivots engaging a cooperating pair of sliding slots for connecting respective first leg upper ends to the frame, a pair of pivots for connecting the respective second leg lower ends to the frame, a pair of forward seat pivots for connecting the seat to respective second leg upper ends, a pair of pivots on the seat rearward of the forward seat pivots and engaging a cooperating pair of sliding slots for connecting the seat to the first leg pair, whereby the chair may be moved between an open position with the seat and legs extended from the frame and a closed position with the seat and legs all substantially aligned within the frame. 
   In another exemplary embodiment of the invention, arm rests are pivotally mounted to the frame for movement between an open position extended above and to the sides of the seat and a closed position within the frame.  

   
     BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS 
     The details of construction and operation of the invention are more fully described with reference to the accompanying drawings which form a part hereof and in which like reference numerals refer to like parts throughout. 
     In the drawings: 
       FIG. 1  is a front perspective view of a first embodiment of a folding chair constructed in accordance with the present invention in an open position extending from a frame; 
       FIG. 2  is a vertical cross-sectional view of the folding chair shown in  FIG. 1  taken along line  2 — 2 ; 
       FIG. 3  is a front perspective view of the folding chair of  FIG. 1  in a closed position within its frame; 
       FIG. 4  is a rear perspective view of the folding chair of  FIG. 1  showing the back of the frame; 
       FIG. 5  is a side elevational view of the folding chair showing the chair partially extended from its frame; 
       FIG. 6  is a front perspective view of a second embodiment of a folding chair constructed in accordance with the invention in an open position extending from a frame; 
       FIG. 7  is a vertical cross-sectional view of the folding chair shown in  FIG. 6  taken along line  7 — 7 ; 
       FIG. 8  is a front perspective view of a third embodiment of a folding chair constructed in accordance  with the invention in an open position extending from a frame; 
       FIG. 9  is a vertical cross-sectional view of the folding chair shown in  FIG. 8  taken along line  9 — 9 . 
   

   DETAILED DESCRIPTION OF THE INVENTION 
   Best Modes for Carrying Out the Invention 
   Referring to the drawings, a concealable chair, generally designated  10 , constructed substantially in accordance with the present invention is seen to generally comprise three basic components: a thin, rectangular frame, generally designated  12 ; a folding chair, generally designated  14 , including a seat  15 , a first pair of spaced apart, relatively long, front legs  17  and  18 , a second pair of spaced apart, relatively short, rear legs  20  and  21 , and a back  23 ; and, a pair of arm rests  25  and  26 . 
   Referring to  FIG. 1 , the rectangular frame  12  is seen to include opposed, spaced upright thin outer side walls  30  and  31 , opposed, spaced thin top and bottom walls  32  and  33  extending between the corresponding upper and lower ends of the outer side walls  30  and  31 , and a back panel  35 . The L-shaped walls  30 ,  31 ,  32  and  33  and the back panel  35  mounted on the inwardly extending legs of the L-shaped walls define a relatively thin, rectangular box, or picture frame, with a shallow internal cavity (not numbered) with an open front. The thickness of the frame, i.e., the depth of the frame cavity as defined by length  the upright portions of the L-shaped walls, should be as thin as possible, preferably, 1¾ inches or less. Spaced inwardly from and parallel to each of the side walls  30  and  31  within the frame  12  are a pair of opposed, spaced upright inner side walls  37  and  38 , which extend between the top and bottom walls  32  and  33 . As seen in  FIG. 1 , the inner side walls  37  and  38  may be of more substantial construction than the frame walls  30 ,  31 ,  32  and  33  to provide more rigid support for a seated person. The inner side walls  37  and  38  have slightly less depth than the frame walls  30 ,  31 ,  32  and  33 , but there is no requirement that they be so. 
   The front legs  17  and  18  extend upwardly and rearwardly from their respective lower ends  40  and  41  resting on the supporting surface to a point adjacent to and inward of the upright inner side walls  37  and  38 . Extending between the lower portions of the front legs is a horizontal cross brace member  43 . The brace  43  is placed on the front face of the front legs  17  and  18  so as not to interfere with the folding action of the chair  14 . The respective upper ends  45  and  46  of the front legs  17  and  18  each have lateral outwardly extending pivots  48  positioned in cooperatively-engaging, elongate sliding slots  49  and  50  defined in the respective inward faces of the inner upright walls  37  and  38 . The slots  49  and  50  may extend through or partially into the side walls  37  and  38 . The pivots  48  enable the legs  17  and  18  to rotate thereabout as the upper ends  45  and  46  of the legs  17  and  18  are moved upwardly and downwardly relative to the slots  49  and  50 . The specific position and length of the slots  49  and  50  are selected to  provide an appropriate range of movement between open and closed positions. 
   The chair back  23  is rotatably connected to the upper end portions of the long legs  17  and  18  by respective lateral outwardly extending pivots  51 . The back  23  extends between the upper end portions of the long legs  17  and  18  to maintain them in spaced position. The back  23  may be tilted as necessary relative to the chair for the comfort of the user. Defined adjacent the upper edge of the midsection of the back  23  is a slot  53  adapted to receive a hook, nail, or other hanger so that the frame  12  with the folded chair  14  therein may be mounted to a wall (not shown), upright surface, or the like. To enable the frame  12  to be hung lengthwise, i.e., turned 90°, a similar slot  54  is defined in a bracket  55  provided adjacent the long outer side wall  31  intermediate the top and bottom walls  32  and  33 . 
   As seen in  FIG. 1 , when the chair  14  is moved to a open position, the seat  15  lies is an generally horizontal orientation. The thin, rigid seat  15  has a generally rectangular configuration. However, the seat  15  has ears  57  and  58  extending laterally outward from either side thereof adjacent its rear edge  77  to define stepped-in portions  60  and  61  on either side edge continuing to its front edge  76 , thereby defining a narrowed portion extending forward from the ears  57  and  58  to the front edge  76  of the seat  15 . The ears  57  and  58  have respective lateral outwardly extending pivots  63  positioned in cooperatively-engaging, elongate sliding slots  64  and  65  defined in the respective midsection of the inward faces of  the long legs  17  and  18 . The slots  64  and  65  may extend through or partially into the inner side of each of the long legs  17  and  18 . The pivots  63  enable the seat to rotate thereabout as the upper ends of the legs  17  and  18  are moved upwardly and downwardly. The specific position and length of the slots  64  and  65  are selected to provide an appropriate range of movement of the folding chair between open and closed positions. 
   The rear legs  20  and  21  extend upwardly and forwardly from their respective lower ends  67  and  68  to their respective upper ends  70  and  71  positioned on either side of the seat  15 . The lower ends  67  and  68  of the rear legs  20  and  21  are each positioned inward of and spaced from the respective upright inner walls  37  and  38  approximately the width of the front legs  17  and  18 . The lower ends  67  and  68  of the rear legs  20  and  21  have laterally extending pivots  73  and  74  rotatably connected to respective lower ends of the upright inner walls  37  and  38  to enable the rear legs  20  and  21  to rotate or swing relative to the frame  12  about a common horizontal axis. The upper ends  70  and  71  of the rear legs  20  and  21  are each positioned outward of the seat  15  and intermediate the seat&#39;s front and rear edges  76  and  77  within the stepped-in portions  60  and  61  and have lateral inwardly extending pivots  80  and  81  to enable the rear legs  20  and  21  to rotate relative to the seat  15  about a common horizontal axis. The position of the seat pivots  80  and  81  are forward of the pivots  63 , which are rearward and spaced therefrom, to provide adequate support for the seat  15  and a user sitting thereon. The rear legs  20  and  21  are  positioned inwardly of the respective front legs  17  and  18  with each pair of respective front and rear legs  17 , 20  and  18 , 21  being provided with pivots  82  and  83  to rotatably connect the respective short and long legs together at a point along their midsection intermediate their respective upper and lower ends and enable the legs to swing relative to one another about a common horizontal axis. 
   The spaced, elongate arm rests  25  and  26  have a T-shaped cross-section and are disposed one on either side of the frame  12  between their respective inner and outer upright walls  30 , 37  and  31 , 38 . The rearward ends of the arm rests  25  and  26  each are provided with a suitable pivot  84  and  85  so that they may be rotated between a closed, upright position within the frame  12  between the inner and outer upright walls as seen in  FIG. 4  and an open, extended position as seen in  FIGS. 1 and 2 . In the open position, the free ends of the arm rests  25  and  26  extend outward from the frame  12  with the upper surfaces thereof disposed horizontally to act as left and right arm rests. Downward rotation of the arm rests  25  and  26  beyond the open position is limited by contact of the rear edges of the arm rests  25  and  26  with the inner surface of the back panel  35 . It should be apparent that other methods of mounting the arms and limiting movement thereof are available. 
   Note that as an optional construction the arm rests may be eliminated entirely. In that case, the frame would be defined by the two inner upright walls, the bottom wall and the top wall. The outer side walls would be removed and the back panel would only extend between the side walls and the bottom and top walls. To provide a  clean appearance, the slots for the leg pivots would not extend through the entire thickness of the side walls, but only have a depth sufficient for the pivot to function. 
   In closed position as shown in  FIG. 3 , the seat  15  and legs  17 ,  18 ,  20  and  21  as well as the arm rests  25  and  26  are all positioned within the frame  12 . In this position, the long front legs  17  and  18  are positioned inward of and next to the inner upright walls  37  and  38  and the short rear legs  20  and  21  are positioned inward of and next to the front legs  17  and  18 . The rear legs  20  and  21  are spaced from the inner uprights walls  37  and  38  with long pivots  73  and  74 . The length of each long leg  17  and  18  from the pivots  80  and  81  to the lower free end  40  and  41  is shorter than the length of the short legs  20  and  21  from the pivots  80  and  81  to the lower pivoted ends  67  and  68 . The front legs  17  and  18  which are positioned between respective inner upright walls  37  and  38  and the rear legs  20  and  21  thereby overlying the rear leg pivots  73  and  74  when the chair is in a closed, folded position. The pivots  73  and  74  thereby extend between the inner upright walls  37  and  38  and the rear legs  20  and  21  below the lower ends  40  and  41  of the front legs  17  and  18 . The rear edge  77  of the seat  15  is disposed between the front legs  17  and  18  and the front edge  76  of the seat  15  is disposed between the rear legs  20  and  21 . The narrower stepped front portion of the seat  15  defined forward of the ears  57  and  58  permits the rear legs  20  and  21  to be placed between the front legs  17  and  18  which are connected directly to the rear of the seat  15 . 
   When the folding chair  15  is folded to its fully  closed position, the frame  12  can be stored or hung on a wall with the open side of the frame  12  facing the wall so that the parts of the folding chair  14  are hidden against the wall and the outer surface  36  of the back panel  35  is visible. The outer surface  36  of the back panel  35  can have artwork, advertising, or other visual displays to provide a pleasing or informative appearance. 
   When the chair  14  is to be unfolded, the front legs  17  and  18  are pulled out from the lower part of the frame  12 . This, in turn, causes the upper ends  45  and  46  of the respective front legs  17  and  18  to rotate forwardly and move downwardly. Simultaneously, the rear legs  20  and  21  are pulled out with the respective upper ends  70  and  71  of the rear legs  20  and  21  being rotated forwardly and downwardly. Since the seat  15  is pivotally attached to both the front and rear legs, it is also rotated from its folded vertical position to its unfolded horizontal position when the legs are fully extended. Further, since the seat back  23  is attached to the front legs  17  and  18  at a position spaced from the pivoted upper ends  45  and  46 , it will be positioned slightly forward of the open side of the frame  12 . The arm rests  25  and  26  are optionally and individually lowered to their operative horizontal position upwardly of and to either side of the seat. 
   In a fully opened position, the seat  15  will be substantially horizontal with the lower ends  40  and  41  of the respective front legs  17  and  18  and the bottom wall  33  lying on approximately the same horizontal plane and the supporting floor or surface (not shown). The back panel  35  will be substantially upright or tilted +/−5° from  vertical. The relative position of legs to the frame and to one another and the relative position and length of the slots to the pivots are determined by the need to achieve the above positions and by the need to have the chair  15  fold entirely within the frame  12 , preferably, as thin and flat as possible. 
   In the unfolded, open position as seen in  FIG. 1 , the upper pivots  48  of the front legs  17  and  18  will rest at the bottom of the inner upright slots  49  and  50  and the seat pivots  63  will rest at the bottom of the front leg slots  64  and  65 . Gravity holds and locks the chair  14  in an unfolded position. A person sitting in the chair  14  basically forces the pivots to their lowermost positions in their respective slots. 
   It is understood that the position of the pivots and slots may vary or may be adjusted in the various constructions of the folding chair built in accordance with the present invention depending of the size and orientation of the parts employed by the user. 
   As another example, the length of the arm rests can be extended without increasing the height of the frame, if the arm rests  84  and  85  are lowered, i.e., the pivots for the arm rests are positioned further down in the frame. Or, the arm rests can be raised, if the arm rests are shortened. 
   The chair may be made of wood, plastic, or metal as desired. Extruded plastic, aluminum, or steel provide a pleasing appearance and an appropriate finish. The inner side walls to provide additional structural strength to support the seat and the user may be made of stronger  material or be shaped or configured to have a cross-sectional area greater than the cross-sectional area of the outer side walls. The back panel may be made of any relatively thin rigid or flexible material, such as wood, plastic, plexiglass, cardboard, canvas, or metal. The seat and seat back may be covered with a layer of sorbothane, other polyurethane material, or any other suitable material to provide a comfortable cushion. 
   A second embodiment of the chair and frame assembly, generally designated  110 , is shown in  FIGS. 6 and 7  and is seen to generally comprise three basic components: a thin, rectangular frame, generally designated  112 ; a folding chair, generally designated  114 , including a seat  115 , a first pair of spaced apart, relatively long, front legs  117  and  118 , a second pair of spaced apart, relatively short, rear legs  120  and  121 , and a back  123 ; and, a pair of arm rests  125  and  126 . 
   The rectangular frame  112  is seen to include opposed, spaced upright thin outer side walls  130  and  131 , opposed, spaced thin top and bottom walls  132  and  133  extending between the corresponding upper and lower ends of the outer side walls  130  and  131 , and a back panel  135 . The L-shaped walls  130 ,  131 ,  132  and  133  and the back panel  135  mounted on the inwardly extending legs of the L-shaped walls define a relatively thin, rectangular box, or picture frame, with a shallow internal cavity and an open front. Spaced inwardly from and parallel to each of the side walls  130  and  131  within the frame  112  are a pair of opposed, spaced upright inner side walls  137  and  138 , which extend between the top and bottom walls  132  and  133 .  
   The front legs  117  and  118  extend upwardly and rearwardly from their respective lower ends  140  and  141  resting on the supporting surface to a point adjacent to and inward of the upright inner side walls  137  and  138 . A cross brace  143  is provided between the front legs  117  and  118  for rigidity and for use as a possible foot rest. The respective upper ends  146  of the front legs  117  and  118  each have lateral outwardly extending pivots  148  positioned in cooperatively-engaging, elongate sliding slots  150  defined in the respective inward faces of the inner upright walls  137  and  138 . 
   The seat  115  has ears  157  and  158  extending laterally outward from either side thereof adjacent its rear edge  177  to define stepped-in portions  160  and  161  on either side edge continuing to its front edge  176 , thereby defining a narrowed portion extending forward from the ears  157  and  158  to the front edge  176  of the seat  115 . The ears  157  and  158  have respective lateral outwardly extending pivots  163  positioned in cooperatively-engaging, elongate sliding slots  164  and  165  defined in the respective midsection of the inward faces of the long legs  117  and  118 . 
   The rear legs  120  and  121  extend upwardly and forwardly from their respective lower ends  167  and  168  to their respective upper ends  170  and  171  positioned on either side of the seat  115 . The lower ends  167  and  168  of the rear legs  120  and  121  are each positioned inward of and spaced from the respective upright inner walls  137  and  138  approximately the width of the front legs  117  and  118 . The lower ends  167  and  168  of the rear legs  120  and  121  have  laterally extending pivots  173  and  174  rotatably connected to respective lower ends of the upright inner walls  137  and  138  to enable the rear legs  120  and  121  to rotate or swing relative to the frame  112 . The upper ends  170  and  171  of the rear legs  120  and  121  are each positioned outward of the seat  115  and intermediate the seat&#39;s front and rear edges  176  and  177  within the stepped-in portions  160  and  161  and have lateral inwardly extending pivots  180  and  181  to enable the rear legs  120  and  121  to rotate relative to the seat  115 . The position of the seat pivots  181  are forward of the pivots  163 , which are rearward and spaced therefrom, to provide adequate support for the seat  115  and a user sitting thereon. The rear legs  120  and  123  are positioned inwardly of the respective front legs  117  and  118  with each pair of respective front and rear legs  117 , 120  and  118 , 121  being provided with pivots  183  to rotatably connect the respective short and long legs together at a point along their midsection intermediate their respective upper and lower ends and enable the legs to swing relative to one another. 
   The spaced, elongate arm rests  125  and  126  have a T-shaped cross-section and are disposed one on either side of the frame  112  between their respective inner and outer upright walls  130 , 137  and  131 , 138 . The rearward ends of the arm rests  125  and  126  each are provided with a suitable pivot  185  so that they may be rotated between a closed, upright position within the frame  112  between the inner and outer upright walls. 
   The back rest  123  is pivotally connected, as by opposed pivots  190 , with the inner side walls  137  and  138 ,  or by hinges (not shown), adjacent the top wall  132  and has a pair of spaced side portions  192  and  193  which slide along the front surfaces  195  and  196  of the upper portions of the front legs  117  and  118 . When the front legs  117  and  118  are moved outward to an open position, the back rest  123  is pivoted outwardly relative to the frame  112  to tilt the back rest  123  to a comfortable position. When the chair is moved to a closed position, the back rest  123  is moved within the frame  112  against the inner side walls  137  and  138  which the back rest  123  overlaps. The inner side walls  137  and  138  have a depth less than the thickness of the outer side walls  130  and  131  to accommodate the back rest  123  within the frame cavity. Formed at the top of the back rest  123  intermediate the sides is a hanger receiver slot  199  adapted to receive a wall mount so that the chair frame assembly may be mounted to an upright wall. To enable the frame  12  to be hung lengthwise, a similar slot  154  is defined in a bracket  155  provided adjacent the long outer side wall  131  intermediate the top and bottom walls  132  and  133 . 
   A third embodiment of the chair and frame assembly, generally designated  210 , is shown in  FIGS. 8 and 9  and is seen to generally comprise three basic components: a thin, rectangular frame, generally designated  212 ; a folding chair, generally designated  214 , including a seat  215 , a first pair of spaced apart, relatively long, front legs  217  and  218 , a second pair of spaced apart, relatively short, rear legs  220  and  221 , and a back  223 ; and, a pair of arm rests  225  and  226 . 
   The rectangular frame  212  is seen to include  opposed, spaced upright thin outer side walls  230  and  231 , opposed, spaced thin top and bottom walls  232  and  233  extending between the corresponding upper and lower ends of the outer side walls  230  and  231 , and a back panel  235 . The L-shaped walls  230 ,  231 ,  232  and  233  and the back panel  235  mounted on the inwardly extending legs of the L-shaped walls define a relatively thin, rectangular box, or picture frame, with a shallow internal cavity and an open front. Spaced inwardly from and parallel to each of the side walls  230  and  231  within the frame  212  are a pair of opposed, spaced upright inner side walls  237  and  238 , which extend between the top and bottom walls  232  and  233 . 
   The front legs  217  and  218  extend upwardly and rearwardly from their respective lower ends  240  and  241  resting on the supporting surface to a point adjacent to and inward of the upright inner side walls  237  and  238 . A cross brace  243  is provided between the front legs  217  and  218  for rigidity and for use as a possible foot rest. The respective upper ends  246  of the front legs  217  and  218  each have lateral outwardly extending pivots  248  positioned in cooperatively-engaging, elongate sliding slots  250  defined in the respective inward faces of the inner upright walls  237  and  238 . 
   The seat  215  has ears  257  and  258  extending laterally outward from either side thereof adjacent its rear edge  277  to define stepped-in portions  260  and  261  on either side edge continuing to its front edge  276 , thereby defining a narrowed portion extending forward from the ears  257  and  258  to the front edge  276  of the seat  215 . The ears  257  and  258  have respective lateral outwardly  extending pivots  263  positioned in cooperatively-engaging, elongate sliding slots  264  and  265  defined in the respective midsection of the inward faces of the long legs  217  and  218 . 
   The rear legs  220  and  223  extend upwardly and forwardly from their respective lower ends  267  and  268  to their respective upper ends  270  and  271  positioned on either side of the seat  215 . The lower ends  267  and  268  of the rear legs  220  and  221  are each positioned inward of and spaced from the respective upright inner walls  237  and  238  approximately the width of the front legs  217  and  218 . The lower ends  267  and  268  of the rear legs  220  and  221  have laterally extending pivots  273  and  274  rotatably connected to respective lower ends of the upright inner walls  237  and  238  to enable the rear legs  220  and  221  to rotate or swing relative to the frame  212 . The upper ends  270  and  271  of the rear legs  220  and  221  are each positioned outward of the seat  215  and intermediate the seat&#39;s front and rear edges  276  and  277  within the stepped-in portions  260  and  261  and have lateral inwardly extending pivots  281  to enable the rear legs  220  and  221  to rotate relative to the seat  215 . The position of the seat pivots  281  are forward of the pivots  263 , which are rearward and spaced therefrom, to provide adequate support for the seat  215  and a user sitting thereon. The rear legs  220  and  221  are positioned inwardly of the respective front legs  217  and  218  with each pair of respective front and rear legs  217 , 220  and  218 , 221  being provided with pivots  283  to rotatably connect the respective short and long legs together at a point along their midsection intermediate their respective upper and  lower ends and enable the legs to swing relative to one another. 
   The spaced, elongate arm rests  225  and  226  have a T-shaped cross-section and are disposed one on either side of the frame  212  between their respective inner and outer upright walls  230 , 237  and  231 , 238 . The rearward ends of the arm rests  225  and  226  each are provided with a suitable pivot  285  so that they may be rotated between a closed, upright position within the frame  212  between the inner and outer upright walls. 
   The back rest  223  is pivotally connected, as by opposed pivots  290 , with the inner side walls  237  and  238 , or by hinges (not shown), adjacent the top wall  232  and has a concave center section  291  for receiving a user&#39;s back and a pair of spaced side portions  292  and  293 . A linkage  295 , one at each side of the back rest  223 , is connected between the pivot pin  246  and a slide slot  296 , carried at the rear of the side portions of the back rest  223 . When the front legs  217  and  218  are moved outward to an open position, the back rest  223  is pivoted outwardly relative to the frame  212  to tilt the back rest  223  to a comfortable position. When the chair is moved to a closed position, the back rest  223  is moved within the frame  212  against the inner side walls  237  and  238  which the back rest  223  overlaps. The inner side walls  237  and  238  have a depth less than the thickness of the outer side walls  230  and  231  to accommodate the back rest  223  within the frame cavity. Formed above the concave back section  291  in a flat surface of the back rest  223  is a hanger receiver slot  299  adapted to receive a wall mount so that the chair frame assembly  may be mounted to an upright wall. To enable the frame  212  to be hung lengthwise, a similar slot  254  is defined in a bracket  255  provided adjacent the long outer side wall  231  intermediate the top and bottom walls  232  and  233 . 
   INDUSTRIAL APPLICABILITY 
   From the foregoing, it should be apparent the folding chair described herein is simple, compact and inexpensive, yet is a convenient and reliable item. 
   Other aspects, objects and advantages of this invention can be obtained from a study of the drawings, the disclosure and the appended claims.