Tensioning devices

Details Tensioning devices Tensioning devices

1981-01-30

1983-07-26

Murtagh, John E.

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Tension adjuster has surface in sliding contact with belt

474140, F16H 708

Patent

active

043952500

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.

REFERENCES:
patent: 3426606 (1969-02-01), Hopkins
patent: 3463025 (1969-08-01), Turner et al.
patent: 4314691 (1982-02-01), Sato

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