Power-driven cut-off machine

Details Power-driven cut-off machine Power-driven cut-off machine

1992-11-04

1994-10-18

Lavinder, Jack W.

Abrading

Combined tool

451490, 834712, 83490, B24B 4100

Patent

active

053556356

ABSTRACT:
The present invention provides an improved cut-off machine wherein the length of an abrasive wheel in contact with a work is easily adjustable. The cut-off machine of the invention includes: a base with fixed and movable vises for clamping a work; a pair of joint members being supported by a pair of brackets projecting from the rear end of the base so as to pivotably move within a predetermined angle; an arm attached to the upper portion of the joint members; an abrasive wheel mounted on one end of the arm for cutting the work; a handle fixed to the arm for operating the arm; a motor attached to the arm for driving the abrasive wheel; and a compression spring spanned between the base and the arm. The upper mounting position of the compression spring on the arm is closer to the brackets, compared with the lower mounting position of the compression spring on the base. The reciprocating movement of the arm moves the abrasive wheel in the horizontal direction to the current optimal cutting position. Such reciprocating movement efficiently prevents undesirable loading of the abrasive wheel and increases the effective cutting width of the abrasive wheel, thus improving the cutting efficiency.

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patent: 4817581 (1989-04-01), Trentadue
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