| 摘要 |
PURPOSE:To improve the titled device in the strength and durability of jointed portion, by integrally constituting a clutch hub and a flange and by jointing them in such a manner that a sub-plate may be twisted relative to a flange when a twisting angle is small. CONSTITUTION:When a torque is improved on a side plate 3, and the twisting angle of plate 13 relative to a flange 11 is smaller than a preset angle theta, the torque is transmitted from the plate 13 to a flange 11 through springs 24, 25, a sub-plate 12 and a spring 37, and further to an output shaft through a hub 10. Only the spring 37 is compressed, and the plate 13 and the sub-plate 12 are integrally twisted relative to the flange 11. As the twisting angle and the transmission torque are increased up to preset values theta1 and Ti respectively, a sub-pin 41 abuts against a notched side edge 42 for preventing the plate 12 and the spring 37 from twisting and compressing respectively. Then, the plate 13 is caused to twist relative to the flange 11 and the sub-plate 12. Subsequently, the torque is transmitted from the plate 13 to springs 24, 25 for compressing the same to lower the increasing magnitude of twisting angle. Upon a maximum value theta2 being reached, a pin 15 abuts against a notched side edge 19 to restrict the further twisting movement, and thus the working life of jointed portion can be extended. |
