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US 5,676,024 AGranted
Cam device
AssigneeShikoku Kokai Co., Ltd.
InventorsKiyomi Yoshida, Fumiyuki Iwano, Michio Ueda
Life of this patent
Estimating the term…
Abstract
A cam device includes an armlike cam follower for moving a lift unit upward and downward, and a plate cam having a cam contour face in contact with the cam follower. The cam is formed in a side surface thereof with a recessed portion having an inwardly facing periphery which provides a guide face extending along the cam contour face. A movable roller is in bearing contact with the guide face. The cam follower and the movable roller are biased toward each other by and elastic member.
Claims5
A cam device comprising:
- a cam being a plate cam fixed to a horizontal cam shaft and having an outer peripheral surface having a cam contour face facing outwardly, said cam being formed in a side surface thereof with a recessed portion having an inwardly facing periphery, said inwardly facing periphery providing a guide face extending along said cam contour face;
- a cam follower having a pivotal center axis in an approximately horizontal direction which extends in parallel with said horizontal cam shaft and being arranged so as to be in bearing contact with said cam contour face;
- a roller lever having a pivotal center axis in parallel with said pivotal center axis of said cam follower and being attached to said cam follower;
- a roller moving both toward and away from said cam follower, wherein said roller is attached to said roller lever so as to be in bearing contact with said guide face when said roller moves toward said cam follower;
- and
- an elastic means for biasing said cam follower and said roller lever so that said roller is pressed outwardly against said guide face and arranged between said cam follower and said roller lever.
3 more elements
Dependencies are inferred from the claim text.