| 摘要 |
<p>Provided is a torsional shock absorbing apparatus, simple in construction without increasing the number of parts, which can set an optimum hysteresis torque in the positive and negative rotation sides, and can enhance the workability of the production operation, and can prevent the production cost of the torsional shock absorbing apparatus from being increased. The torsional shock absorbing apparatus is constructed to have the outer peripheral portions of the spring seats 31 move along the outer supporting edge portions 20a, 21 a of the side plate 17 when the hub 11 is twisted with respect to the side plate 17 in the positive rotation side, and to have the outer peripheral portions of the spring seats 32 move along the outer supporting edge portions 20a, 21a when the hub 11 is twisted with respect to the side plate 17 in the negative rotation side. The sliding resistance of the spring seat 31 and the outer supporting edge portions 20a, 21a is larger than the sliding resistance of the spring seat 32 and the outer supporting edge portions 20a, 21a.</p> |
