Assembly for conventional bench saw
OwnerMichel Letendreinventor
Life of this patent
Estimating the term…
Abstract
The disclosure herein describes an attachment assembly for mounting to a conventional bench saw; the assembly comprises a rigid member which is mounted to the power-operated main shaft of the bench saw. The member has two projecting rods at one end thereof which are adapted to slide on a pair of guiding pins mounted on a movable structure of the bench saw; the function of the pins is also to fixedly secure the rigid member to the movable structure after the attachment is installed and the tool is fixedly set for a cutting operation. The cooperation of the projecting rods with the guiding pins is such as to prevent vertical lateral and angular movements of the member which would otherwise appear because of the reaction forces exerted during the cutting operation.
Claims10
An attachment assembly for mounting to a conventional bench saw having:
- a base, a work-supporting table on said base displaying a longitudinal opening therethrough, a moveable structure mounted in said base and carrying a power-operated main shaft, a cutting tool operatively connected to said shaft and partially protruding through said opening, and means in said base for causing vertical and angular displacements of said shaft relative to said table;
- said attachment assembly comprising:
- a rigid member associated with said tool and rotatively mounted relative to said main shaft;
- said member extending longitudinally of said opening beneath said table and including projection means comprising spring rod means extending at one end of said rigid member;
- and
- guiding and securing means mounted to said movable structure and comprising guide pin means being adapted (i) to slidably receive thereon said projecting means during vertical displacement of said shaft with said member and said tool thereon relative to said table and (ii) to fixedly secure said member to said movable structure when said tool is vertically set for a cutting operation to thereby prevent vertical, lateral and angular movements of said member caused by forces exerted during the cutting operation, said spring rod means comprising a pair of spring rods longitudinally extending from said one end of the said member;
- said guide pin means comprising a pair of guide pins respectively receiving thereon each of said rods.
An attachment assembly for mounting to a conventional bench saw having:
- a base, a work-supporting table on said base displaying a longitudinal opening therethrough, a moveable structure mounted in said base and carrying a power-operated main shaft, a cutting tool operatively connected to said shaft and partially protruding through said opening, and means in said base for causing vertical and angular displacements of said shaft relative to said table;
- said attachment assembly comprising:
- a rigid member associated with said tool and rotatively mounted relative to said main shaft;
- said member extending longitudinally of said opening beneath said table and including projection means comprising spring rod means extending at one end of said rigid member;
- and
- guiding and securing means mounted to said movable structure and comprising guide pin means being adapted (i) to slidably receive thereon said projecting means during vertical displacement of said shaft with said member and said tool thereon relative to said table and (ii) to fixedly secure said member to said movable structure when said tool is vertically set for a cutting operation to thereby prevent vertical, lateral and angular movements of said member caused by forces exerted during the cutting operation, said spring rod means comprising a pair of spring rods longitudinally extending from said one end of the said member;
- said guide pin means comprising a pair of guide pins respectively receiving thereon each of said rods, said tool being a scoring saw assembly comprising a main saw blade mounted on said main shaft and a scouring saw blade mounted on said rigid member at an end opposite to said one end;
- said scoring saw blade being mounted on a shaft parallel to that of said main shaft;
- said member carrying an idler belt tensioning pulley rotatably mounted about a fixed eccentric shaft, the axes of both said scoring blade shaft and of said pulley shaft extending parallel to the axis of said main saw blade shaft;
- an endless belt operatively connected between said main shaft and said pulley shaft and engaging said scoring saw blade shaft for rotational movement thereof in a direction opposite to that of said main shaft.
Dependencies are inferred from the claim text.