Damping mechanism for a tensioner

Endless belt power transmission systems or components – Means for adjusting belt tension or for shifting belt,... – Load responsive tension adjuster or shifter

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474135, F16H 708

Patent

active

056326971

ABSTRACT:
A belt tensioner of the Zed type with a pivot-arm attached to a cylindrical member and including a spring activated damping mechanism with a brake shoe having oppositely facing inside ramp surfaces which operate in such a manner to provide a normal force that is greater than a spring force applied to a brake shoe that engages the cylindrical member.

REFERENCES:
patent: 4473362 (1984-09-01), Thomey et al.
patent: 4557709 (1985-12-01), St. John
patent: 4696663 (1987-09-01), Thomey et al.
patent: 5045031 (1991-09-01), Thomey
patent: 5354242 (1994-10-01), St. John
patent: 5439420 (1995-08-01), Meckstroth et al.
SAE Technical Paper No. 790699, Dearborne meeting, Jun. 11-15, 1979 Serpentine--Extended Life Accessory Drive, Cassidy et al.

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