| 摘要 |
An elastic-tube-operated brake band is used by arranging it between an inner member and an outer member. The brake band includes a ring-shaped strap with a friction material fixedly secured on a circumferential surface thereof. The brake band is also with an elastic tube which is arranged on a side of an opposite circumferential surface of the ring-shaped strap. By a pressure produced by charging pressure fluid into the tube, the friction material is brought into engagement with a counterpart via the ring-shaped strap to transmit a torque between the inner member and the outer member. The ring-shaped strap is fixed at opposite ends thereof with play in a circumferential direction, respectively.
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