| 摘要 |
<p>PROBLEM TO BE SOLVED: To make a lever side clutch portion light and compact.SOLUTION: A clutch unit is composed of a lever side clutch portion 11 which controls the transmission and the interception of rotational torque inputted by operating a lever; and a brake side clutch portion 12 which transmits the rotational torque from the lever side clutch portion 11 to an output side, and intercepts the rotational torque reversely inputted from the output side. The lever side clutch portion 11 is equipped with an outer ring 13 constrained in rotation, a centering spring 14 attached to the outer ring 13, an operation ring 15 held so as to engage with and separate from the centering spring 14, and an inner ring 16 having recesses and protrusions 16a capable of engaging recesses and protrusions 15a. By operating the lever, the operation ring 15 is rotated to the outer ring 13 in an engaged state with the centering spring 14, and the operation ring 15 and the inner ring 16 is made to be able to transmit torque by the engagement of the recesses and protrusions 15a and 16a. By releasing the lever operation, the operation ring 15 can be returned to an initial position to the inner ring 16 by releasing the engagement of the recesses and protrusions 15a and 16a.</p> |
