US 12,246,410 B2
Electric power tool
Akira Mizutani, Anjo (JP); Ryosuke Otani, Anjo (JP); and Fumiyoshi Saito, Anjo (JP)
Assigned to MAKITA CORPORATION, Anjo (JP)
Appl. No. 17/799,827
Filed by MAKITA CORPORATION, Anjo (JP)
PCT Filed Dec. 16, 2020, PCT No. PCT/JP2020/046927
§ 371(c)(1), (2) Date Aug. 15, 2022,
PCT Pub. No. WO2021/166399, PCT Pub. Date Aug. 26, 2021.
Claims priority of application No. 2020-024528 (JP), filed on Feb. 17, 2020.
Prior Publication US 2023/0079761 A1, Mar. 16, 2023
Int. Cl. B24B 49/10 (2006.01); B24B 23/02 (2006.01); B24B 47/12 (2006.01); B25F 5/02 (2006.01)
CPC B24B 49/10 (2013.01) [B24B 47/12 (2013.01); B25F 5/02 (2013.01); B24B 23/028 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An electric power tool comprising:
a motor;
a control device configured to control the motor;
a power transmission mechanism connected to the motor;
a housing that houses the motor, the control device and the power transmission mechanism;
an end tool holder connected to the power transmission mechanism;
an accessory configured to be detachably attached to the housing; and
a detector configured to detect whether the accessory is attached or not,
wherein the detector comprises:
a link member configured to move with respect to the housing according to the accessory being attached or detached;
a magnet fixed in position with respect to one of the link member and the housing; and
a magnetic sensor fixed in position with respect to another of the link member and the housing,
the link member comprises:
a movement member configured to move with respect to the housing according to the accessory being attached or detached; and
a slide member configured to slide with respect to the housing according to moving of the movement member,
the slide member comprises:
a slide bar extending along a longitudinal direction of the electric power tool;
a movement portion disposed at one end of the slide bar and configured to move along with the movement member; and
a mount portion disposed at another end of the slide bar and in which one of the magnet and the magnetic sensor is mounted, and
the one of the magnet and the magnetic sensor that is mounted in the mount portion is located on an opposite side from the movement member as seen from the motor in the longitudinal direction of the electric power tool.