Automatic chain tensioner

Details Automatic chain tensioner Automatic chain tensioner

F - Mech Eng,Light,Heat,Weapons

16

H

F16H 7/12 (2006.01) B60K 17/36 (2006.01) F16H 7/08 (2006.01)

Patent

CA 2246187

The drive-chain tensioner is automatically self-adjusting. A chain-slipper is guided to follow wear-movement of the chain. A cam is mounted on the follower. If slack in the chain increases, the cam is rotated by a cam spring to a position in which a larger radius of the cam lies under the follower, The care provides a solid abutment that prevents the chain from compressing the tensioning springs and becoming slack when drive is reversed. For compactness and good load distribution, the chain is supported on a saddle between two cams. The cams have ratchet teeth.

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