Chainsaw guide bar which stiffens when bent

Details Chainsaw guide bar which stiffens when bent Chainsaw guide bar which stiffens when bent

1997-03-18

1999-03-23

Payer, Hwei-Siu

Cutlery

Cutting tools

Saw

30383, B27B 1702

Patent

active

058844066

ABSTRACT:
Chain saw guide bar comprising three plates joined by welding, having a nose, a clamping area and a guiding groove for the chain, where the bending stiffness in a zone immediately in front of the clamping area is increased by omitting welds in the zone to make sure that the compressed plate buckles outward when overloaded. The zone extends in the longitudinal direction of the bar for a distance greater than the groove depth and less than the bar width.

REFERENCES:
patent: 2660204 (1953-11-01), Rosenboom
patent: 2962812 (1960-12-01), Gommel
patent: 4641432 (1987-02-01), Kume
patent: 4965934 (1990-10-01), Eriksson et al.
patent: 5014435 (1991-05-01), Date et al.
patent: 5052109 (1991-10-01), Vanderzanden et al.
patent: 5561908 (1996-10-01), Leini
patent: 5596811 (1997-01-01), Payne

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