Lever gear mechanism with two pairs of levers for use in park houses

摘要

The first and second pair (242,6) of levers have a first (10,14) and second (12,16) lever separately joined by a link point (28,30) each. Each second lever is linked to the movable element (20). The drive mechanism (22) for the rotary movement acts directly upon each second lever of at least one pair of levers, and drives the first lever linked to it for the rotary movement. The drive mechanism co-operates with a gear (32) which has a chain (34) or belt, especially toothed belt for each pair of levers. The chain or belt leads over two deflectors near the first lever. One deflector is rotationally mounted by means of the link point to the end of the first lever, and is fixed to each second lever. The other deflector leads rotationally by means of a fixed bearing (38) on the other end of the first lever. Each deflector is form of a chain cog wheel (36,37).