Tensioning devices

Details Tensioning devices Tensioning devices

B - Operations, Transporting

65

G

74/261

B65G 23/44 (2006.01) F16H 7/08 (2006.01)

Patent

CA 1161667

Abstract A chain tensioning device comprises a pair of arms 2, 3 which are pivoted together and urged apart, so that the arm 3 applies a tensioning force to a chain, by means of a block 9 biased by a compression spring 10 axially along the arm 2 in conjunction with links 14 coupled between the block 9 and the arm 3 and serving to pivot the arm 3 relative to the arm 2, in response to such spring biased axial movement of the block 9. A catch disc 12 and rod 6 arrangement is provided to prevent return movement of the spring loaded block 9 and hence collapse of the arm 3 under load reversals of the chain.

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