Oscillatory abrasive cable power saw
First Claim
1. A saw blade driving mechanism for reciprocatingly drawing a flexible, abrasive coated wire across a workpiece, said mechanism including,a housing,a pivotable yoke including a pivot supported by said housing,means for reciprocatingly driving said pivotable yoke through a predetermined angle about said pivot,a protective cover attached to said housing and positionable to cover at least a portion of said pivotable yoke, anda switch arranged to be responsive to said protective cover being positioned to cover said at least said portion of said pivotable yoke.
1 Assignment
0 Petitions
Accused Products
Abstract
An angularly reciprocating pivotable yoke, driven by a motor or a power t, is attached to respective ends of an abrasive coated cable or wire blade to draw the blade back and forth over a workpiece and provide cutting thereof, particularly in close quarters where little clearance is provided adjacent a workpiece. A telescoping housing includes a movable protective cover for protection of both the user and the mechanism. A safety switch is provided for preventing operation of the mechanism when the protective cover does not cover moving parts of the mechanism. A pivotable support for attachment of the ends of the blade to ends of the pivotable yoke is preferably of cylindrical form and which has a slotted aperture for receiving the blade and a recess for receiving an enlarged blade end, preferably formed by a piece of tubing crimped to the blade. The cylindrical support is retained in a slot in ends of the pivotable yoke by a spring and a cylindrical spacer so that the cylindrical support may freely rotate in the slot in the reciprocating yoke.
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Citations
22 Claims
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1. A saw blade driving mechanism for reciprocatingly drawing a flexible, abrasive coated wire across a workpiece, said mechanism including,
a housing, a pivotable yoke including a pivot supported by said housing, means for reciprocatingly driving said pivotable yoke through a predetermined angle about said pivot, a protective cover attached to said housing and positionable to cover at least a portion of said pivotable yoke, and a switch arranged to be responsive to said protective cover being positioned to cover said at least said portion of said pivotable yoke.
Specification