Guide bar for a chain saw

Details Guide bar for a chain saw Guide bar for a chain saw

1992-03-13

1993-12-21

Watts, Douglas D.

Cutlery

Cutting tools

Saw

30383, B27B 1702

Patent

active

052711579

ABSTRACT:
The invention is directed to a guide bar for portable motor-driven chain saws. The guide bar includes two steel side parts and a center part connected to the side parts. The weight of the guide bar is kept optimally low while at the same time providing adequate stability and the longest possible service life by providing cutouts extending in the longitudinal direction which are provided with a filler of a material having a lower specific gravity. The cutouts of the side parts and the cutout in the center part filled likewise with a lighter material are arranged so as to not coincide with each other when the guide bar is assembled. In this way, a form-tight mounting for the filler is formed in the side parts and in the center part.

REFERENCES:
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patent: 4641432 (1987-02-01), Kume
patent: 4654972 (1987-04-01), Sellmarier et al.
patent: 4693007 (1987-09-01), Apfel et al.
patent: 4794696 (1989-01-01), Apfel et al.
patent: 4903410 (1990-02-01), Wieninger et al.
patent: 4956918 (1990-09-01), Beyer
patent: 5014435 (1991-05-01), Date et al.
patent: 5025561 (1991-06-01), Sugihara et al.
patent: 5035058 (1991-07-01), Date et al.

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