Belt tensioning apparatus

Details Belt tensioning apparatus Belt tensioning apparatus

1990-03-22

1991-02-19

Bui, Thuy M.

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

474138, F16H 708

Patent

active

049939939

ABSTRACT:
The disclosure relates to a tensioning system for a drive belt (17). The system includes a tensioner (19) which is mounted to slide towards, and away from, the belt. An idler roller (22) is resiliently mounted in the tensioner (19) and is forced against the belt by means of springs, for example (84 and 85) in FIG. 8 or (102 and 103) in FIG. 9. The springs are arranged so that they increase the force applied by the roller to the belt as the tensioner is moved towards the belt until the force reaches a predetermined value, whereafter further movement over a limited range does ot further increase the force.
The invension provides a tensioning system which will provide a predetermined lateral pressure on the belt without the necessity for using measuring apparatus during the adjustment of the static belt tension.

REFERENCES:
patent: 4285676 (1981-08-01), Kraft
patent: 4312267 (1982-01-01), Shenberger
patent: 4458403 (1984-07-01), Foster
patent: 4583962 (1986-04-01), Bytzek et al.
patent: 4761154 (1988-08-01), Beauchamp et al.
patent: 4767385 (1988-08-01), Wilson
patent: 4816011 (1989-03-01), Kotzab

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