Hydraulic autotensioner

Details Hydraulic autotensioner Hydraulic autotensioner

1997-11-24

2000-07-04

Hannon, Thomas R.

Endless belt power transmission systems or components

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

Tension adjuster or shifter driven by electrical or fluid motor

474112, 474113, F16H 708, F16H 712

Patent

active

060831316

ABSTRACT:
A hydraulic autotensioner for keeping constant the tension in a belt. It has a bolt threadedly fixed to a stationary member, an eccentric ring supported by the bolt at an off-center position so as to be pivotable about the bolt, a pulley rotatably mounted on the eccentric ring, and a tension adjusting spring for biasing the eccentric ring in such a direction that the belt is pressed by the pulley. A hydraulic damper having a damper body is mounted between the stationary member and the eccentric ring so as to abut the eccentric ring for damping the pushing force applied to the eccentric ring from the belt through the pulley. A coupling ring is provided to keep the eccentric ring and the hydraulic damper coupled together.

REFERENCES:
patent: 4557707 (1985-12-01), Thomey
patent: 4904230 (1990-02-01), Kawashima et al.
patent: 4917655 (1990-04-01), Martin
patent: 5011460 (1991-04-01), Ouchi et al.
patent: 5230275 (1993-07-01), Hodge et al.
patent: 5548982 (1996-08-01), Rawling
patent: 5607368 (1997-03-01), Hida et al.
patent: 5702317 (1997-12-01), Kawashima et al.
patent: 5836844 (1998-11-01), Yoshida

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