Saw chain comprised of safety side links designed for reducing v

Details Saw chain comprised of safety side links designed for reducing v Saw chain comprised of safety side links designed for reducing v

1986-06-02

1987-02-17

Schran, Donald R.

Cutting

Cutter assemblage or cutter element therefor

83834, B27B 3314

Patent

active

046430652

ABSTRACT:
A saw chain length including articulated alternating center drive links and side links. Cutting links provide certain of the side links and a safety side link precedes each cutting link. The safety side link and its opposing tie strap link have shaved heel portions and thereby are raised off the guide bar when normally tensioned around the guide bar. The safety link is configured whereby engagement thereof by material being cut during a cutting operation induces pivoting of the safety link against the opposing tension force, which tension force thereby absorbs the impact prior to said heel portions engaging the guide bar edge.

REFERENCES:
patent: 4122741 (1978-10-01), Engman
patent: 4590836 (1986-05-01), Doiron
patent: 4593591 (1986-06-01), Beerens
patent: 4604932 (1986-08-01), Doiron
patent: 4608901 (1986-09-01), Doiron

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