| 摘要 |
Each of the two articulations between the drive rocker bar (12) and sliding shafts (3a, 4a) is formed by two coaxial contact surfaces (8a, 9a; 10, 11) of semi-circular cross section. Each articulation unit is fixed only to the rocker bar. The slides hav e.g. springs (6, 7) to keep all moving surfaces in contact. |
