Patent ID: 7246444

Claim:
A cutting tool comprising: a base; a main body provided on the base and having a cutting blade that rotates and is driven by a motor, and a blade case that covers an upper part of the cutting blade and has a front end pivotally mounted on the base so that the blade case is rotatable in upper and lower directions; a guide member which stands on the base and along which a rear end of the blade case is slid in accordance with the rotative operation of the blade case, and a clamp mechanism provided with the blade case for being switched between a clamped condition where the guide member is pressed to be fixed to a side of the blade case and an unclamped condition where the fixing of the guide member is released by rotation of a first lever, wherein a second lever is connected to the first lever so as to be interlocked with the first lever that is rotated by the rotative operation of the second lever, wherein when the second lever is operated, the clamp mechanism is switched between the clamped condition and the unclamped condition through the rotative operation of the first lever, wherein the clamp mechanism comprises a clamp pin penetrating through the guide member disposed at the inner side of the blade case until the clamp pin protrudes to the outside of the blade case, and the first lever that is connected with the clamp pin and rotates around a portion where the first lever abuts to the outer surface of the blade case and acts as a fulcrum for pulling and urging the clamp pin in the protruding direction, thereby pressing the guide member to the inner circumference of the blade case, and the second lever is a cam lever connected to the side of a force-applying point of the first lever, and the second lever slides on the outer surface of the blade case when the second lever is rotated to the side of the blade case, whereby the force-applying point of the first lever is pressed toward a direction that is remote from the outer surface of the blade case.