referring now to the drawings wherein like numerals designate like and corresponding parts throughout the several views , fig1 shows an ergonomic support apparatus 10 for supporting a portion of a lower limb 12 of a user 14 . user 14 is seated in a reclining position in chair 16 having a headrest 18 , backrest 20 , seat cushion 22 , and arm rests 24 ( one shown ) directly or indirectly supported by chair base 26 . ergonomic support apparatus 10 includes main body portion 30 supporting lip or shoulder portion 32 sized and shaped to be received and supported by generally planar surface 34 of a desktop or workstation 36 supported at an elevation by legs 38 , 40 . with reference now to fig2 - 4 , it will be seen that main body portion is contemplated to be configured in any of a wide variety of shapes designed to receive a lower limb ( hereinafter understood to include a foot and / or calf and / or lower leg as so chosen by the user ). by way of example as will be more fully described and shown below , it will be appreciated that a generally triangular shaped main body portion 50 will comfortably receive a lower limb at an acute angle to the leading edge of the desk or workstation , while minimizing excessive overlap of the planar desk area on which it is to be received . as will be more fully described below in connection with fig6 - 11 , the generally triangular shape of the main body portion 50 may be substituted with circular , oval , ellipsoid , rectilinear , semi - circular , crescent or compound shapes including such geometric shapes to provide alternate lower limb receiving options . in a preferred embodiment , main body portion 50 transitions to downwardly extending supporting lip or shoulder portion 52 which is sized and shaped to be received and supported by generally planar surface 34 of a desktop or workstation 36 in embracing relationship to protect the user against direct contact with a leading edge of 58 of the desk or workstation 36 . with reference to fig3 , it will be seen that a concavity 60 may be optionally formed in the main body portion 50 to assist in positioning and retaining the lower limb during use of the apparatus 10 . it will be appreciated that a single concavity 60 may be provided extending in a direction perpendicular to the major axis of lip or shoulder portion 52 , and centered in relationship thereto , or alternatively , a plurality of concavities may be provided at acute angles to the lip or shoulder portion 52 to accommodate a user &# 39 ; s limb extending also at an acute angle , such as might be expected when the user is seated other than square with the leading edge of 58 of the desk or workstation 36 . with reference to fig5 , main body portion 50 and lip or shoulder portion 52 may be further formed with a memory foam or other shape compliant material , and optionally , an internally contained metallic or non - metallic frame , truss , or brace 62 may be provided to provide even greater structural enhancement . with regard to the such materials of construction , memory foams of desired density and resiliency may be selected as will be appreciated by the skilled artisan . alternatively , shaped cushions may be filled with compressed air , gels , silicon , or non - memory foams depending on intended use and market factors . it is further contemplated that slip covers ( not shown ) may be provided which are sized and shaped to accommodate the structural fillings . with regard to frame 62 , it will be further appreciated by the skilled artisan that such frame may be constructed of metals such as aluminum , steel or other metallic components or alloys or combinations thereof , or of non - metallic components such as plastics , wood , or even heavier density plastics acting in cooperation with the basic foam construction to achieve an ergonomic support apparatus 10 having desired flexibility / rigidity properties . no matter which construction is selected , the apparatus may be simply installed about the leading edge of the desk 36 in opposing relationship with the user 14 and supported in place by the resulting friction between the lower surface 51 of main body portion 50 and generally planar surface 34 of desktop or workstation 36 . alternatively , enhanced friction may be provided by providing a textured surface to the lower surface 51 of main body portion 50 to prevent undesired slippage therebetween when the user moves his lower limb . yet other slippage reduction apparatus may be provided , including but not limited to one or more suction cups secured to lower surface 51 for adhesion to the selected surface 34 ( whether planar or not ). a further embodiment contemplates the use of “ c ” shaped clamp installed at the underside of main body portion 50 , for removable installation to a desk or workstation having an exposed edge to which the clamp may be removably secured . such clamp may include either a screw type tensioning attachment , or may be constructed with a flexible , memory - based material ( metallic or polymeric ) for being secured to an exposed edge . ideally , any such attachment means includes surfaces and edges which are non - destructive and non - marring when applied to the desk surface . with reference now to fig6 - 11 , additional preferred embodiments of the support apparatus 10 are shown , all of which utilize the underlying construction previously described . specifically , fig6 shows a right triangle shaped main body portion 70 and a lip or shoulder portion 72 extending therefrom . fig7 shows a unilateral triangular shaped main body portion 74 and a lip or shoulder portion 76 extending therefrom . fig8 shows a generally circular shaped main body portion 78 and a generally circular lip or shoulder portion 80 extending therefrom . fig9 shows a generally circular shaped main body portion 82 and a generally straight lip or shoulder portion 84 extending therefrom . fig1 shows a generally planar main body portion 86 and an orthogonally oriented planar lip or shoulder portion 88 extending therefrom . fig1 shows a generally planar main body portion 90 such as that shown in fig1 , and an orthogonally oriented planar lip or shoulder portion 92 extending therefrom by interconnecting straps or panels 94 . it will be appreciated that straps / panels 94 may be adjusted in length co raise or lower the height of lip or shoulder portion 92 relative to main body portion 90 as necessary or desirable to overlap a surface edge ( such as surface edge 58 , fig1 ) for the reasons previously discussed . with reference now to fig1 - 14 , the upper surface of main body portion of any of the disclosed embodiments of any shape may be provided with a generally planar limb receiving upper surface 94 ( fig1 ), a reverse sloping limb receiving upper surface 96 ( fig1 ), or a reverse sloping limb receiving upper surface 98 transitioning to a concavity 100 bounded by a rear forward sloping surface 102 . it will be further appreciated that a central concavity 60 such as that shown in fig2 and fig3 , or any other concavity such as those previously described may be formed in the main body portions shown in fig1 - 14 , and any such combination is to be construed as being with the scope and spirit of the present invention . it is to be understood that although the present invention has been described with reference to preferred embodiments , workers skilled in the art will recognize that changes may be made in form and detail without departing from the spirit and scope of the invention in its broader aspects and , therefore the aim in the appended claims is to cover such changes and modifications as may fall within the scope and spirit of the invention .
an ergonomic support apparatus is disclosed . the support apparatus is adapted to be received and supported by a planar surface of a desktop or workstation when the user adopts a reclining position relative to the support apparatus adjacent the desk or workstation , and includes a shaped limb receiving main body portion extending to a lip or shoulder portion that embraces and overhangs a forward facing edge of the desk or workstation to support an aspect of the limb against undesired pressured contact against the edge while simultaneously comfortably supporting the user &# 39 ; s foot or lower leg portion atop the main body portion .