US 11,938,608 B2
Working machine
Kentaro Hatakeyama, Hitachinaka (JP)
Assigned to KOKI HOLDINGS CO., LTD., Tokyo (JP)
Appl. No. 17/298,168
Filed by KOKI HOLDINGS CO., LTD., Tokyo (JP)
PCT Filed Oct. 25, 2019, PCT No. PCT/JP2019/041963
§ 371(c)(1), (2) Date May 28, 2021,
PCT Pub. No. WO2020/110543, PCT Pub. Date Jun. 4, 2020.
Claims priority of application No. 2018-226119 (JP), filed on Nov. 30, 2018.
Prior Publication US 2022/0118596 A1, Apr. 21, 2022
Int. Cl. B25F 5/02 (2006.01); B24B 23/02 (2006.01); B24B 47/12 (2006.01)
CPC B25F 5/02 (2013.01) [B24B 23/02 (2013.01); B24B 47/12 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A working machine comprising:
a motor;
a housing; comprising:
a main body accommodating the motor therein; and
an operating element movable between an ON position and an OFF position, the motor being driven when the operating element is in the ON position, the motor being stopped when the operating element is in the OFF position; and
an on-locking element capable of maintaining the motor in a driving state, the on-locking element being provided in the main body;
wherein the operating element is configured to change its position with respect to the on-locking element when the operating element moves between the ON position and the OFF position while not maintaining the motor in the driving state, and
wherein, before an operation to turn on the motor is performed on the operating element, at least a portion of the on-locking element is accommodated inside of the housing and is covered by the operating element so as not to be operable, and, when the operation to turn on the motor is performed on the operating element, the portion of the on-locking element is positioned outside of the housing and is exposed from the operating element such that the on-locking element becomes operable.