APPARATUS FOR CONVERTING MOTION

摘要

An assembly for converting motion mounted to a fixed structure at a first fixed pivot (4) and a second fixed pivot (6). The assembly comprises a linkage mechanism. A first arm (8) is pivotally connected at a first position at one end to the first fixed pivot (4). A second arm (10) is pivotally connected at a first position at one end to the second fixed pivot (6). A third arm (12) is mounted at a first position at one end by a pivot connection (14) at the second end of the second arm (10). A first connecting arm (16) is mounted at one end by a pivot connection (18) at a second position on the first arm at the second end of the first arm (8). The second end of the first connecting arm is mounted by a pivot connection (20) to the third arm at a second position on the third arm (12). A second connecting arm (22) is mounted at one end by a pivot connection (24) to the first arm at a third position on the first arm (8) spaced from both the first and second positions. The second end of the second connecting arm (22) is mounted by the pivot connection (14) to both the second arm (10) and the third arm (12). A third connecting arm (30) is connected at one end by a pivot connection (32) to the first arm at a fourth position on the first arm.