Seat with adjustable backrest

摘要

One or more swivel arms (5) are at one end mounted on the backrest (3) and at the other end are supported by the support element (2) of the seat. The seat surface (4) is set vertically adjustable on the support element. A height adjustment fitment on the support element supports at least one swivel arm (5). A fixing element for the swivel arm or its fitment is guided through a vertical oblong hole (22) in the support element (2). The swivel arm can be U-shaped with its closed side directed towards the support element and its open sides mounted on the backrest.