Wheelchair having a height adjustable seat

Abstract

A height adjustable seat for wheelchair having a frame, wheels, a wheelchair seat and back operably connected thereto includes a base with connector for connecting the base to the frame of the wheelchair, a seat, and an elevator operably connecting the base and the seat for adjustably elevating the seat to a selectable height, a remote control therefor, and wherein there are provided an anti-pinch point covers and torsion spring mechanisms to aid the elevation of the seat.

What is claimed is:  
     
         1 . A wheelchair having a height adjustable seat, comprising: 
 a frame having a pair of laterally disposed side members, wherein each said side member has a seat supporting bar and a wheel supporting hub;    a wheel operably connected to each said hub; and    a seat having a base with means for connecting said base to said side members and means operably connecting said base and said seat for adjustably elevating said seat to a selectable height, wherein said elevation means includes scissor like support members which interconnect said base and said seat to move between an extended raised position and a retracted lower position, and having a spring connected to said support members to normally bias said support members toward said extended raised position, and a motor operably connected to said support members to further aid in movement of said support members between said positions.    
     
     
         2 . The wheelchair having a height adjustable seat according to  claim 1 , wherein said seat includes means for collapsing said wheelchair with said height adjustable seat connected thereto.  
     
     
         3 . The wheelchair having a adjustable seat according to  claim 2 , wherein said base is pivotally connected to said wheelchair frame.  
     
     
         4 . The wheelchair having a adjustable seat according to  claim 1 , which further includes a remote control operatively associated with said motor for controlling operation of said motor.  
     
     
         5 . The wheelchair having a adjustable seat according to  claim 1 , which further includes at least one anti-pinch point cover which extends from said seat over a portion of said wheelchair.  
     
     
         6 . The wheelchair having a adjustable seat according to  claim 5 , wherein said portion is an arm of said wheelchair.  
     
     
         7 . The wheelchair having a adjustable seat according to  claim 5 , wherein said portion is a leg support of said wheelchair  
     
     
         8 . The wheelchair having a adjustable seat according to  claim 5 , wherein said portion is a back of said wheelchair  
     
     
         9 . The wheelchair having a adjustable seat according to  claim 1 , which further includes an expandable boot cover which extends from said seat to said base.  
     
     
         10 . A wheelchair having a height adjustable seat, comprising. 
 a frame having a pair of laterally disposed side members, wherein each said side member has a seat supporting bar and a wheel supporting hub;    a wheel operably connected to each said hub;    a seat having a base with means for connecting said base to said side members and means operably connecting said base and said seat for adjustably elevating said seat to a selectable height; and    at least one anti-pinch point cover which extends from said seat over a portion of said wheelchair.    
     
     
         11 . The wheelchair having a height adjustable seat according to  claim 10 , wherein said seat includes means for collapsing said wheelchair with said height adjustable seat connected thereto.  
     
     
         12 . The wheelchair having a adjustable seat according to  claim 11 , wherein said base is pivotally connected to said wheelchair frame.  
     
     
         13 . The wheelchair having a adjustable seat according to  claim 10 , which further includes a remote control operatively associated with said motor for controlling operation of said motor.  
     
     
         14 . The wheelchair having a adjustable seat according to  claim 10 , wherein said elevation means includes scissor like support members which interconnect said base and said seat to move between an extended raised position and a retracted lower position, and having a spring connected to said support members to normally bias said support members toward said extended raised position, and a motor operably connected to said support members to further aid in movement of said support members between said positions.  
     
     
         15 . The wheelchair having a adjustable seat according to  claim 10 , wherein said portion is an arm of said wheelchair.  
     
     
         16 . The wheelchair having a adjustable seat according to  claim 10 , wherein said portion is a leg support of said wheelchair.  
     
     
         17 . The wheelchair having a adjustable seat according to  claim 10 , wherein said portion is a back of said wheelchair.  
     
     
         18 . The wheelchair having a adjustable seat according to  claim 10 , which further includes an expandable boot cover which extends from said seat to said base.  
     
     
         19 . A wheelchair having a height adjustable seat, comprising: 
 a frame having a pair of laterally disposed side members, wherein each said side member has a seat supporting bar and a wheel supporting hub;    a wheel operably connected to each said hub;    a seat having a base with means for connecting said base to said side members and means operably connecting said base and said seat for adjustably elevating said seat to a selectable height; and    wherein said seat includes means for collapsing said wheelchair with said height adjustable seat connected thereto.    
     
     
         20 . The wheelchair having a height adjustable seat according to  claim 19 , at least one anti-pinch point cover which extends from said seat over a portion of said wheelchair.  
     
     
         21 . The wheelchair having a adjustable seat according to  claim 19 , wherein said base is pivotally connected to said wheelchair frame.  
     
     
         22 . The wheelchair having a adjustable seat according to  claim 19 , which further includes a remote control operatively associated with said motor for controlling operation of said motor.  
     
     
         23 . The wheelchair having a adjustable seat according to  claim 19 , wherein said elevation means includes scissor like support members which interconnect said base and said seat to move between an extended raised position and a retracted lower position, and having a spring connected to said support members to normally bias said support members toward said extended raised position, and a motor operably connected to said support members to further aid in movement of said support members between said positions.  
     
     
         24 . The wheelchair having a adjustable seat according to  claim 20 , wherein said portion is an arm of said wheelchair  
     
     
         25 . The wheelchair having a adjustable seat according to  claim 20 , wherein said portion is a leg support of said wheelchair.  
     
     
         26 . The wheelchair having a adjustable seat according to  claim 20 , wherein said portion is a back of said wheelchair.  
     
     
         27 . The wheelchair having a adjustable seat according to  claim 20 , which further includes an expandable boot cover which extends from said seat to said base.