Patent ID: 7743514

Claim:
A reciprocating power tool defined by a reciprocating saw, comprising: a body; a tool bit disposed in a tip end region of the body, the tool bit being defined by a saw blade; a motor disposed within the body, the motor causing the tool bit to linearly reciprocate; a handgrip disposed on a rear end of the body on the side opposite to the tool bit, wherein the handgrip and the body are coupled to each other such that the handgrip and the body can rotate with respect to each other via a fixed axis pivot about a rotational axis extending in a direction perpendicular to a direction of reciprocating linear motion of the tool bit and the tool bit swings together with the body with respect to the handgrip held by a user of the power tool, at the same time as when the tool bit linearly reciprocates with respect to the body via the motor; an elastic element disposed between the handgrip and the body, wherein the elastic element absorbs vibration transmitted from the body to the handgrip by elastically receiving the relative rotation of the handgrip and the body; and a dynamic vibration reducer disposed in the handgrip, the dynamic vibration reducer reducing the vibration transmitted from the body to the handgrip during cutting operation, the dynamic vibration reducer further being contained in the handgrip in line with the elastic element and closer to the rear end of the reciprocating power tool than the elastic element, the dynamic vibration reducer and the elastic element being positioned substantially along a rotation direction of the handgrip and the body and the dynamic vibration reducer further including at least a weight and a spring disposed on each side of the weight.