Power tool

Abstract

A power tool includes a motor which drives a tool bit, a tool body, a handle, and battery mount part, to which battery is detachably mounted. The power tool includes a plurality of battery mount parts, and the battery mount part, includes a battery engaging part with which the battery, can engage. The battery is mounted to the battery mount part by sliding against the battery engaging part in a crossing direction which crosses the longitudinal direction of the tool bit.

1 . A power tool which drives a detachably attached tool bit in a driving axis of the tool bit, comprising:
 a motor which drives the tool bit,   a tool body which houses the motor,   a handle which is connected to the tool body, and   a battery mount part to which a battery for providing electric current is detachably mounted,   wherein the power tool comprises a plurality of the battery mount parts and can provide electric current from the battery mounted to the battery mount part to the motor,   the handle is provided such that it extends in a handle extending direction crossing a driving axis extending direction in which the driving axis extends,   the battery mount part comprises a battery engaging part with which the battery is engageable and the battery mount part holds the battery by engaging the battery with the battery engaging part, and   the battery is slid in a cross direction crossing both of the driving axis extending direction and the handle extending direction with respect to the battery engaging part and the battery is mounted to the battery mount part.   
     
     
         2 . The power tool according to  claim 1 , wherein a plurality of the battery mount parts are aligned in the driving axis extending direction. 
     
     
         3 . The power tool according to  claim 1 , wherein the battery engaging parts are provided such that the batteries are slid from the same side of the tool body with respect to the cross direction and engaged with the battery engaging parts. 
     
     
         4 . The power tool according to  claim 1 , wherein a plurality of the battery mount parts is arranged at a side opposite to the tool bit with respect to the motor in the driving axis extending direction. 
     
     
         5 . The power tool according to  claim 1 , wherein, when the battery is mounted to the battery mount part, a lower surface of the battery is formed flush with a lower surface of the tool body. 
     
     
         6 . The power tool according to  claim 1 , wherein the battery mount part is formed such that a length of the battery mounted to the battery mount part in the driving axis extending direction is shorter than a length of the battery in the cross direction. 
     
     
         7 . The power tool according to  claim 1 , wherein the batter mount part comprises an elastic member which protrudes toward the battery and contacts with the battery when the battery mounted to the battery mount part. 
     
     
         8 . The power tool according to  claim 1 , wherein the handle is provided such that at least its one end side in the handle extending direction is connected to the tool body, and
 a plurality of the battery mount parts is arranged on another end side of the handle in the handle extending direction.   
     
     
         9 . The power tool according to  claim 8 , wherein the handle comprises a grip portion which is held by a user, and the grip portion is arranged on a driving axis line. 
     
     
         10 . The power tool according to  claim 9 , wherein a plurality of the battery mount parts is provided on the tool body at one side with respect to the handle extending direction. 
     
     
         11 . The power tool according to  claim 8 , wherein the handle comprises a grip portion in which its one end side is connected to the tool body and a reinforcing member which connects another end side of the grip portion and the tool body. 
     
     
         12 . The power tool according to  claim 11 , wherein a plurality of the battery mount parts is arranged on the reinforcing member. 
     
     
         13 . The power tool according to  claim 1 , wherein the motor is arranged such that a rotational axis of the motor is intersected with the driving axis. 
     
     
         14 . The power tool according to  claim 1 , wherein the motor is arranged such that a rotational axis of the motor is paralleled to the driving axis. 
     
     
         15 . The power tool according to  claim 1 , wherein said plurality of battery mount parts is formed such that the combined gravity center of a plurality of the batteries mounted to said plurality of battery mount parts is located on a plane including the driving axis and a handle central axis which extends in the handle extending direction. 
     
     
         16 . A power tool which drives a tool bit at least linearly on a driving axis extending in a predetermined longitudinal direction, comprising:
 a motor which drives the tool bit,   a tool body which houses the motor,   a handle which is connected to the tool body, and   a battery mount part to which a battery for providing electric current to the motor is detachably attached,   wherein the power tool comprises a plurality of the battery mount parts,   the handle is provided such that it extends in a handle extending direction crossing the longitudinal direction, and   the battery mount part is fixed on the tool body and undetachable from the power tool.   
     
     
         17 . The power tool according to  claim 16 , wherein the battery mount part comprises a battery engaging part with which the battery is engageable and the battery mount part holds the battery by engaging the battery with the battery engaging part,
 the battery is slid against the battery engaging part and mounted to the battery mount part.   
     
     
         18 . The power tool according to  claim 16 , wherein a plurality of the battery mount parts are arranged to be aligned in a cross direction crossing both of the longitudinal direction and the handle extending direction, and each battery is attached by moving in a direction parallel to the longitudinal direction.