Controlled single-operation cam mechanism

Details Controlled single-operation cam mechanism Controlled single-operation cam mechanism

1981-08-21

1982-10-26

Dorner, Kenneth

Machine element or mechanism

Elements

Cams

74 57, 74569, F16H 5302

Patent

active

043555454

ABSTRACT:
A single-operation cam mechanism includes a cam body with a cam surface extending along the body from an entrance location to an exit location. A cam follower is retained in a waiting position adjacent a part of the cam body at which the exit location is found. When the cam follower is moved free of the retainer, a spring forces the cam follower to the part of the cam where the entrance location is found. Then, as the cam rotates, the cam surface engages the follower and forces it back through the exit location and past a resilient trap to the waiting position. The trap snaps shut after the follower has been forced past it, and the surface of the trap then prevents the follower from moving back into engagement with the cam surface except by way of the entrance location.

REFERENCES:
patent: 1280912 (1918-10-01), Waterman
patent: 1847466 (1932-03-01), Binns
patent: 2116142 (1938-05-01), Chappell et al.

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