Title:
WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2020/204153
Kind Code:
A1
Abstract:
This work machine comprises: an actuator that extends and retracts a telescopic boom; an electric drive source that is provided to the actuator and driven by power supplied from a power source; an operating unit that operates with energy from the electric drive source; an electric circuit capable of switching between a drive state in which power is allowed to be supplied to the electric drive source from the power source to drive the electric drive source, and a braking state in which the supply of power from the power source to the electric drive source is stopped and a braking force to be applied to the electric drive source is generated; and a control unit that controls the switching between the drive state and the braking state.
Inventors:
ZUSHI MASAHIDE (JP)
NAGAHAMA KAZU (JP)
FUKUOKA TOSHIHIKO (JP)
SHIRAI MANATO (JP)
NAGAHAMA KAZU (JP)
FUKUOKA TOSHIHIKO (JP)
SHIRAI MANATO (JP)
Application Number:
PCT/JP2020/015267
Publication Date:
October 08, 2020
Filing Date:
April 03, 2020
Export Citation:
Assignee:
TADANO LTD (JP)
International Classes:
B66C23/693
Foreign References:
| JP2017159973A | 2017-09-14 | |||
| JP2017154875A | 2017-09-07 | |||
| JP2016155654A | 2016-09-01 | |||
| JP2012096928A | 2012-05-24 | |||
| JP2019072143A | 2019-05-16 |
Other References:
See also references of EP 3950565A4
Attorney, Agent or Firm:
WASHIDA & ASSOCIATES (JP)
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