Plastics chair or armchair with backrest forming transparent window - has plastics plate or panel recessed into window by means of groove around edge

摘要

A rim (13) goes all round the window in the backrest (11) and serves as support. The rim incorporates a continuous groove (14) open outwards or forwards. A plate (12) has a strip (15) all round it with an inward or backward pointing protuberance fitting into the continuous groove in the backrest. The peripheral protuberance protrudes towards the back of the chair or armchair. Its front acts as a support for the plate whose peripheral protuberance is joined to the groove by heat treatment. The plate peripheral strip has pins fitting into holes at the base of the backrest groove. USE/ADVANTAGE - The plastics plate or panel is securely fixed to the plastics backrest by means of a peripheral strip and groove interlocking.