Patent ID: 11927246
Assignee: KITO CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 3:
4. The shortening clutch according to claim 1,
wherein the another chain has a third chain link different from the first chain link and coupled to the second chain link,
wherein the main body includes a bulge on a periphery of the pocket,
wherein the bulge comes into contact with the third chain link to inhibit the lock lever from pivoting in an unlocking direction due to movement of the second chain link toward the second operating piece,
wherein the main body includes a pair of leg portions facing each other and a transverse portion provided between the pair of leg portions,
wherein the locking piece includes: a pivot restricting surface which collides with the transverse portion; and a chain abutting end which collides with the second chain link when the second chain link moves in the escaping direction, and
wherein, in the locked state in which the chain abutting end and the second chain link collide with each other at a first collision point, a virtual line connecting a rotation center of the lock lever and the first collision point makes an obtuse angle with a tangent of the second chain link at the first collision point.