Power transmission structure with dual blade shaft of a...

Details Power transmission structure with dual blade shaft of a... Power transmission structure with dual blade shaft of a...

2007-07-10

2007-07-10

Dexter, Clark F. (Department: 3724)

Cutting

Other than completely through work thickness or through work...

Combined types of cutting

C083S477100, C083S477200, C083S491000, C144S003100

Reexamination Certificate

active

10968123

ABSTRACT:
A power transmission structure with a dual blade shaft of a circular saw wherein the rear end of the driving shaft of the driving roller is provided with a fixing plate pivotally mounted with a steering roller, a steered roller and a dual level transmission roller. These rollers are surrounded with a first transmission belt, and the fixing plate is provided with a floating rod having an adjustable roller. The rear end of the driven shaft has a driven roller, and the driven roller, the adjustable roller and the dual level transmission roller are provided with a second transmission belt. The first and second transmission belts are used to cause the saw blade and pre-cut blade of the driven shaft to rotate in reverse directions. The tightness of the second transmission belt is adjusted by the floating rod.

REFERENCES:
patent: 4181164 (1980-01-01), Meniconi
patent: 4308777 (1982-01-01), Lawson
patent: 4334450 (1982-06-01), Benuzzi
patent: 4534256 (1985-08-01), Benuzzi
patent: 4706535 (1987-11-01), Ducharme
patent: 5117722 (1992-06-01), Letendre
patent: 5148732 (1992-09-01), Striebig
patent: 5193428 (1993-03-01), Letendre
patent: 6968767 (2005-11-01), Yu

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