Round articulations which can be used for the seats of land, marine and air vehicles

摘要

The double satellite comprises internal teeth 5a and external teeth 5b interacting with one of the sets of external teeth 8a of the fixed flange 1 and the other with the internal teeth 9a of the movable flange 9 then a circular cut-out 1b of the fixed flange 1 serves both as a centring path for the double satellite 5 and for a central oval ring 13; a ball bearing 12 is interposed between the movable flange 9 and a ring crimped between the movable flange 9 and the fixed flange 1; roller bearings 15, 16 are interposed between the circular cut-out 19, the oval central ring 13 and a needle cage 17 acting as a resting member for the double satellite 5 relative to the cam 4; both the outside of the fixed flange 1 and the outside of the movable flange 9 comprise various members allowing easy fastening of the seat cushion frame and of the backrest of the seat on the mechanism of the articulation; the central main portion 3 comprises at its centre a smooth bearing intended to receive the control member of the articulation mechanism of the seat in question. IMAGE