| 摘要 |
<p>The disclosed cable-type operation device is made more compact while increasing the durability of a coil spring. In the cable-type operation device, one end of the coil spring (56) is attached to a brake lever, and the other end of the coil spring (56) is attached to a supporting member. At least one of either the supporting member or the brake lever is provided with a guide surface (58b) that contacts the coil spring from the side of the coil spring. One end section of the coil spring is provided with: a first pitch section (56b) that is wound at a first coil pitch; a second pitch section (56a) that is wound at a second coil pitch that is smaller than the first coil pitch; and a third pitch section (56c) that is wound at a third coil pitch that is greater than the second coil pitch. In the state where an initial load is applied to the coil spring, the length of the coil spring becomes 80-120 mm, adjacent wires in the first pitch section do not contact each other, whereas adjacent wires in the second pitch section do contact each other, and the second pitch section contacts the end (A) of guide surface (58b).</p> |
