Chain saw cutter bar-nose assembly

Details Chain saw cutter bar-nose assembly Chain saw cutter bar-nose assembly

1985-09-03

1988-02-02

Kazenske, E. R.

Cutlery

Cutting tools

Saw

30381, 30383, 30387, B23D 5702

Patent

active

047221410

ABSTRACT:
A chain saw bar having an elongated shape, a saw chain guideway around substantially the length of the perimeter thereof, with a matching saw chain sprocket in the nose thereof, and calculated points of variation in strength in the interior of the bar at points removed from the sprocket, the points of variation in strength acting so that if the bar is subjected to an excessive bending force, the bar will tend to become bent initially at one point of variation in strength and with increased bending force at a subsequent point of variation in strength. In this way, extreme bending of the bar at one location and pinching of the sprocket are minimized.

REFERENCES:
patent: 2316997 (1943-04-01), Smith
patent: 3762047 (1973-10-01), Scott-Jackson
patent: 3955279 (1976-05-01), Pierson
patent: 3987544 (1976-10-01), Gibson
patent: 4021913 (1977-05-01), Artt
patent: 4060895 (1977-12-01), Hille
patent: 4259783 (1981-04-01), Scott-Jackson et al.
patent: 4489493 (1984-12-01), Tsumura

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