Title:
PARKING BRAKE DEVICE AND WORK MACHINE EQUIPPED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2022/158488
Kind Code:
A1
Abstract:
Provided is a parking brake device that can be installed in a work machine. This parking brake device comprises: a parking brake (8) capable of switching between a brake state for braking the slewing of an upper structure and a brake release state; a brake operation device (20) to which a brake operation and a brake release operation for switching the parking brake (8) between the brake state and the brake release state are given by an operator; and a brake control unit (10). The brake control unit (10) determines whether or not the slewing determination conditions for determining whether or not the upper structure is in slewing operation are satisfied, and upon determining that the upper structure is in the slewing operation, performs brake operation disable control to disable the brake operations given to the brake operation device.
Inventors:
SAKURAI HITOSHI
SASAI SHINTARO
TERAUCHI KENICHI
SASAI SHINTARO
TERAUCHI KENICHI
Application Number:
PCT/JP2022/001780
Publication Date:
July 28, 2022
Filing Date:
January 19, 2022
Export Citation:
Assignee:
KOBELCO CONSTR MACH CO LTD (JP)
International Classes:
B66C15/00; B66C23/94; E02F9/22
Foreign References:
| JP2017105584A | 2017-06-15 | |||
| JPS63312432A | 1988-12-20 | |||
| JP2017024825A | 2017-02-02 |
Other References:
See also references of EP 4230567A4
Attorney, Agent or Firm:
KOTANI, Masataka et al. (JP)
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