Office chair has back mounted on support linking it to seat, mounting consisting of rubber bush with flange screwed to back, square metal nut being attached to bush and bolt passing through support, nut and bush and into back

摘要

The office chair has a back (20) which is mounted on a curved support (30) linking it to the seat (10). A mounting (50) is attached to the reverse side of the seat back which consists of a rubber bush (52A) with an integral oval flange (51) which is screwed to the back. A square metal nut (54) is attached to the outer end of the bush and a bolt (401) passes through the top of the support, through the nut and bush and into the back.