Working machine

A working machine comprising:

• a motor;
• a plunger that can attach a tool and reciprocates in a front-back direction by a drive of the motor;
• a counterweight that is driven so as to counteract vibration due to the reciprocation of the plunger by the drive of the motor;
• and
• a transmission mechanism that transmits a rotation driving force of the motor to the plunger and the counterweight;
• and
• a transmission mechanism case that accommodates the transmission mechanism, an elastic body, and a metal support member,
• wherein the metal support member is supported by the transmission mechanism case via the elastic body,
• wherein the elastic body and the metal support member are arranged on at least one side of the counterweight in a direction orthogonal to the front-back direction, and
• wherein the counterweight is supported by the metal support member that is elastically supported by the elastic body and is reciprocable relative to the metal support member in the front-back direction.

A working machine comprising:

• a motor;
• a plunger that can attach a tool and reciprocates in a first direction by the motor;
• a rotating body that rotates around an axis extending in a second direction orthogonal to the first direction by a drive of the motor;
• an eccentric portion provided on the rotating body and configured to rotate around the axis;
• a counterweight that is connected to the eccentric portion and reciprocates in the first direction so as to counteract vibration due to the reciprocation of the plunger by transmitting a forward biasing force from a forward movement of the eccentric portion to the counterweight and by transmitting a rearward biasing force from a rearward movement of the eccentric portion to the counterweight;
• and
• an elastic body arranged on at least one side of the counterweight in a third direction that is orthogonal to both the first direction and the second direction and elastically supports the counterweight in the third direction.