JP2002346828A5 - - Google Patents

Claims (9)

A slit that extends along the axial direction and is provided orthogonal to the slit in which the blade is inserted and a direction in which the slit extends, and has a through-hole penetrating at least to the slit at the tip, and is moved back and forth in the through-hole. A locking pin that presses and locks the blade against the wall of the slit, and a first elastic body that can be deformed in a direction perpendicular to the axial direction of the plunger at the tip of the plunger, and the elastic force of the first elastic body A saver saw that releases the pressing of the locking pin by pressing the locking pin and deforming the first elastic body in a direction perpendicular to the axial direction of the plunger. A slit that extends along the axial direction and is perpendicular to the slit in which the blade is inserted and the direction in which the slit extends, and has a through-hole penetrating to at least the slit at the tip, and a plunger that is driven to reciprocate, and a forward and backward movement into the through-hole A locking pin provided with a locking projection for locking and locking the locking projection that penetrates the locking hole provided in the mounting end of the blade and the side of the mounting end of the blade against the wall of the slit, and the plunger A first elastic body deformable in a direction perpendicular to the axial direction of the plunger at the tip of the first elastic body, pressing the locking pin by the elastic force of the first elastic body, and the first elastic body perpendicular to the axial direction of the plunger A saver saw that releases the pressing of the locking pin when deformed. The saver saw according to claim 1, wherein the first elastic body prevents the locking pin from coming off . The saver saw according to claim 1, wherein a first elastic body is fixed to the plunger. The saver saw according to claim 1, wherein a pressing member that presses the locking pin radially outward is provided in a through hole of the plunger. The saver saw according to claim 1, wherein the plunger is provided with a rotatable knob, the first elastic body is deformed by rotating the knob, and the pressing of the locking pin is released. The distance between the action point that the knob exerts on the first elastic body and the fulcrum that is the center of rotation is shorter than the distance between the force point that acts on the knob and the fulcrum that is the center of rotation, and the force exerted on the force point The saver saw according to claim 6, wherein a large force is exerted on the point of action. The saver saw according to claim 1, wherein a second elastic body is provided substantially parallel to the first elastic body to lock the knob. The saver saw according to claim 6, wherein the knob is locked in a state where a blade can be inserted by the elastic force of the first elastic body or the second elastic body.