| 摘要 |
The system has fixed and movable plates (1, 2) that are connected with each other by primary and secondary connecting rods (3, 4), through bearings (10, 20) comprising respective plates (1, 2). The bearings are provided along parallel axes. The connecting rod (3) has a longitudinal recess provided in a median region of the rod (3) and the rod (4) passes and progresses through the recess of the rod (3). |
