Multi-adjustable swivel chair with back and knee supports

Abstract

One embodiment of a chair mounted on a swiveling, telescoping column ( 14 ) supported by a five-legged base ( 10 ), each with its own caster ( 12 ). A seat ( 16 ) is attached to the top of the swiveling column. A knee support assembly ( 34 ) is suspended from the seat base ( 32 ). The seat is in a horizontal position, but the seat, back support ( 18 ) and knee support may be adjustable as a unit to a forward tilt. Other embodiments are described and shown.

1 . A chair, comprising: a vertical, support column arising from a base frame; a seat and its base attached to said support column; a back support attached to said seat; a knee support assembly that is suspended from the base of said seat; said seat, back support and knee support assembly capable of rotation as a unit on said column. 
   
   
       2 . The chair of  claim 1  wherein said seat, back support and knee support assembly can be adjusted as a unit between the forward tilt and horizontal position. 
   
   
       3 . The chair of  claim 1  wherein said seat is fixed in a horizontal position. 
   
   
       4 . The chair of  claim 1  wherein a knee support cushion base and knee support cushion of said knee support assembly are adjustable and retractable by the following mechanisms wherein: 
   
   
       5 . The cushion base and cushion of  claim 4  are connected to the seat base by two telescoping poles, making said cushion base and cushion adjustable for length. 
   
   
       6 . The cushion base of  claim 4  is connected to said poles by a bolt that can be loosened or tightened, making said cushion base and cushion adjustable for angle. 
   
   
       7 . The cushion base and cushion of  claim 4  can be retracted under the seat by pushing said poles completely inward and rotating said cushion base and cushion downward to a vertical position, further wherein a slot in said cushion base permits said cushion base and cushion to slide upward on the bolt, making said cushion base and cushion able to tuck under the seat. 
   
   
       8 . The chair of  claim 1  wherein said cushion base houses two separate cushions, each of which is adjustable left and right. 
   
   
       9 . A knee support assembly, comprising a knee support cushion base and knee support cushions, a knee support assembly base which is attachable to the seat base of a work station chair, and a solid material, for example, metal or plastic, connecting said cushion base and cushions to said assembly base.