Patent ID: 8286358
Filing Date: 2012-10-16
Classification: B27B

Abstract:
1. A portable cutting tool comprising: a housing that rotatably supports a cutting blade which is driven by a motor to cut a workpiece; a base having a first side to be connected with the housing, and a second side being the other side of the base and abutting on the workpiece, and having an opening which penetrates the first side and the second side and through which the cutting blade is protrudable from the second side; and a protrusion amount changing mechanism that has a link part extending from one of the base and the housing, and a fixing part which is provided at the other one of the base and the housing, is arranged opposite to a side surface of the cutting blade, comes to a fixed state with respect to the link part when moved in one direction in a direction orthogonal to a rotational shaft of the cutting blade, and comes to a moving state to be movable with respect to the link part when moved in another direction in the direction orthogonal to the rotational shaft, whereby a protrusion amount of the cutting blade from the second side is changed as the fixing part is moved with respect to the link part, wherein the fixing part includes: wherein the abutment portion has a cam which rotates about an axis parallel to the rotational shaft, and wherein the abutment portion has an elastic member interposed between the cam and the link part, and the cam abuts on the link part via the elastic member.