Back support for seat

Abstract

An orthopedic back support for displacing a person's weight from the lower area of the spine by providing support for the upper torso and for use with a chair or seat having a seat base and a seat back. A flexible fabric cross piece is connected between vertical members to provide back support. The cross piece may include vertical channels or sleeves at opposite sides to receive and support the vertical members. A flexible strap is connected to the fabric or the vertical members and adapted to be positioned behind a seat or a head rest. The entire unit is portable or may be fabricated as part of a seat.

1 .- 13 . (canceled) 
   
   
       14 . A back support comprising a frame, said frame having first and second axillary side members, a back support member extending between the first and second axillary members for supporting a user's lower back when in use, a flexible strap member connected to support said first and said second axillary side members to provide tensioned support for said side members, the first and second side members each having an outward extending axillary rest, said axillary rests being disposed to be positioned between a first position relatively flush to a seat back and a second positon extending outwardly from the seat back, the strap member adapted to be positioned when in use behind the seat back or head rest, such that the axillary rests when in use transfer the supported weight of a torso through the first and second axillary members to the strap member. 
   
   
       15 . The back support of  claim 14  wherein the first and second axillary members include an adjustable support for adjusting the vertical position of the axillary rests relative to a seat. 
   
   
       16 . The back support of  claim 14 , wherein the back support is a flexible fabric and said strap member has opposite ends connected to the first and second axillary members at upper extremities of said axillary members, said strap being disposable behind the seat back or head rest so as to support the weight of a torso of a user through the flexible strap. 
   
   
       17 . The back support of  claim 14  wherein the back support is a flexible sheet, said flexible sheet being adapted to support the first and second axillary members, and said strap being connected directly to opposite sides of said sheet at an upper end thereof and being disposable behind a seat back or head rest so as to support the weight of a torso of a user through the flexible strap. 
   
   
       18 . The back support of  claim 14 , wherein said flexible sheet and side members are collapsible such the said support is portable. 
   
   
       19 - 21 . (canceled)