Patent ID: 6691599
Filing Date: 2004-02-17
Classification: B27G,Y10S,Y10T

Abstract:
A cutter guard device for a belt saw machine, said cutter guard device comprising:a stationary hinge leaf having a coupling edge formed with a first knuckle unit; a movable hinge leaf having a coupling edge formed with a second knuckle unit; a hinge pin extending through said first and second knuckle units, thereby permitting rotation of said movable hinge leaf relative to said stationary hinge pin about said hinge pin for movement between a cutter concealing position and a cutter exposing position; said movable hinge leaf being further slidable relative to said stationary hinge leaf along said hinge pin between a retaining position and a pivoting position; said movable hinge leaf being movable between the cutter concealing and cuter exposing positions when said movable hinge leaf is disposed in the pivoting position on said hinge pin; and a retention unit capable of retaining releasably said movable hinge leaf in the cutter concealing position when said movable hinge leaf is further disposed in the retaining position on said hinge pin; wherein said coupling edge of said movable hinge leaf is formed with a notch, thereby configuring said coupling edge of said movable hinge leaf with a tab that is adjacent to said notch, said retention unit including a limit plate having a mounting end part mounted to said coupling edge of said stationary hinge leaf, and a distal end part that extends from said mounting end part and that is transverse to said stationary hinge leaf, said distal end part of said limit plate abutting against said tab at an outer side surface of said movable hinge leaf to arrest rotation of said movable hinge leaf from the cutter concealing position to the cutter exposing position when said movable hinge leaf is disposed in the retaining position on said hinge pin, and said distal end part of said limit plate being aligned with said notch in said coupling edge of said movable hinge leaf to permit rotation of said movable hinge leaf from the cutter concealing position to the cutter exposing position when said movable hinge leaf is disposed in the pivoting position on said hinge pin.