Tensioner device for belt or chain drives

Details Tensioner device for belt or chain drives Tensioner device for belt or chain drives

1989-08-24

1990-06-19

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

049349848

ABSTRACT:
A tensioner device is provided with a rotary body energized the rotation by a spring and an urged body restricted the rotation by a bearing are inserted into a casing in a screwed state.
The inner part of the casing is tightly closed by being covered with a bellows between the above casing and the urged body, and the torque of the rotary body is converted into a propelling force in a rod direction.
In this case, an excess in pressurized air which compensates the change of an inner pressure caused by propelling of the urged body, is sealed within the casing.

REFERENCES:
patent: 4702726 (1987-10-01), Ojima et al.
patent: 4722720 (1988-02-01), Ojima et al.

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