Dental chair backrest with integral elbow supports

Claim 1

An upholstered back with integral elbow supports for the backrest frame of dental chairs and the like comprising: a. an elongated plate adapted for connection to the backrest frame; b. first and second sheets of upholstery material fixed respectively to the front and rear surfaces of said elongated plate, portions of said sheets extending outwardly from opposite longitudinal edges of said plate to form wing portions, said first sheet being disposed over the front surface of said plate and defining the front surface of each wing portion, said second sheet comprising a pair of separate sheets defining the rear surface of each wing portion, said second sheets being connected along one edge to said plate; c. said outward extending wing portions being stitched together along a peripherial line to form a sealed pocket, said peripherial line including a segment running generally along a major length of each of said longitudinal edges wherein said first and second sheets are placed one against the other and stitched to form hinges about which said wing portions can deflect; d. stiffening means in each of said pockets to rigidity the same and permit said wings to support the elbows of a patient in said dental chair, each means including a pair of stiffening members, one disposed over the other, the top one of said members being formed with a curved portion to cup the elbow of a patient in said dental chair; and e. upholstery cushion material in each of said wing pockets and about said means to cushion said wings, a portion of said upholstery cushion material being interposed between said members.