Title:
WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2021/220705
Kind Code:
A1
Abstract:
Provided is a work machine that makes it possible to improve workability. The work machine is provided with: a tip tool 38 that operates with a driving force from a motor output shaft 23; a transmission path that transmits the driving force from the output shaft to the tip tool; a slip clutch mechanism 70 that blocks the transmission path when a load applied to the tip tool exceeds a predetermined value; and a control circuit that controls driving of a motor and detects a detected value indicating kickback of a housing 11. In this case, the control circuit is capable of executing a first control for stopping the driving of the motor when the detected value exceeds a first threshold value in a motor-driven state, and is configured not to stop driving of a driving source, even when the detected value exceeds the first threshold value, during a first dead period from the beginning of the driving of the motor until a lapse of a first predetermined time, and during a second dead period from when, after the first dead period, the detected value first exceeds a second threshold value smaller than the first threshold value until a lapse of a second predetermined time.
Inventors:
SHINTO SHUNYA (JP)
ABE SATOSHI (JP)
TOYODA SHINYA (JP)
ABE SATOSHI (JP)
TOYODA SHINYA (JP)
Application Number:
PCT/JP2021/013763
Publication Date:
November 04, 2021
Filing Date:
March 31, 2021
Export Citation:
Assignee:
KOKI HOLDINGS CO LTD (JP)
International Classes:
B25F5/00; B25D16/00
Foreign References:
JP2018020421A | 2018-02-08 | |||
JP2019098454A | 2019-06-24 | |||
US20170361449A1 | 2017-12-21 |
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