| 摘要 |
PURPOSE:To enable the arrangment of elastic members different in radius of action, by providing opposed rising walls along openings of less radius of action so that a sufficient dimension is defined between the peripheries of adjacent openings. CONSTITUTION:A main side plate 2, an auxiliary side plate 4 and the disc section 6 of a clutch hub 5 are provided with a plurality of openings 8, 9 at a distance from each other. Torsion springs 10, 11 are housed in the openings 8, 9. Among the openings 8, 9, at least two opposed openings 9 have a smaller action radius than the other openings 8 and are provided with rising walls 12 which are located at the central parts of the opposed walls of the openings 9 and face each other, so that a large dimension is defined berween the wall of the opening 9 and the periphery of the adjacent opening 8 to keep the rigidity of the disc section 6 from being reduced due to the presence of the openings 8, 9, to assure enough strength. The peripheral parts of the rising walls 12 function as seats for the torsion springs 11. |
