| 摘要 |
PURPOSE:To pack a brake device, assembled to a hub for a bicycle to use it, in a compact state in a state to separate the brake device away from a hub and transport the brake device and effect assembly in a high-precise working state through a simple operation. CONSTITUTION:An object to be braked where a part 13 to be braked is formed to a hub 2 forms a part different from the hub 2, and integrally rotatably coupled to the left arm part 2a of the hub 2 through a serration part 13a. A brake 6, a brake operation tool 7, a brake device body B comprising a roller 15 capable of operating a brake shoe 6 by means of the brake operation tool 7 and a rotary cam 18, and an object to be braked where a part 13 to be braked is formed to the hub 2 are formed in a unit state so that the members can be assembled to the hub 2 at a stroke. |
