Over-center latching coupling

Details Over-center latching coupling Over-center latching coupling

1980-12-22

1983-05-31

Yu, Mickey

Buckles, buttons, clasps, etc.

Strap tighteners

Strap-attached folding lever

24 68R, 24 68T, 29225669, 292 68, A43C 1100

Patent

active

043854230

ABSTRACT:
An over-center latching device for coupling two members by the operation of a handle with the use of one hand. The device has a rod having a T at one end for engaging a hook, the other end of the rod being pivotally engaged intermediate the ends of the handle. One end of the handle is pivotally engaged on a support member adjacent and spaced from the pivot point of the rod. The other end of the handle is adapted to be gripped by the operator for completing the latching and unlatching operation. The support member which is adapted to be secured to a fixed member has a concave cam surface facing the pivoted end of the rod. The pivoted end of the rod has a leaf spring extending therefrom toward the concave cam surface. To engage the latch, the operator grips the handle and rotates it on its pivot so that the leaf spring is moved into engagement with the end of the cam surface. By the contact of the spring on the cam surface the rod is rotated so that the T-bar is moved toward the hook and as the spring is continued to be rotated on the cam the T-bar is rotated into latching engagement with the hook and the center of the rod pivot is moved over the center of the handle pivot to securely latch the rod and hook together to complete the coupling operation. A safety lock is also provided to maintain the coupling in the latched engagement.

REFERENCES:
patent: 1280408 (1918-10-01), Cox
patent: 2945274 (1960-07-01), Paterson
patent: 3238581 (1966-03-01), Sawyer
patent: 4051611 (1977-10-01), Chalmers
patent: 4074549 (1978-02-01), Yee
patent: 4318557 (1982-03-01), Bourne et al.

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