Title:
WORKING MACHINE
Document Type and Number:
WIPO Patent Application WO/2017/170243
Kind Code:
A1
Abstract:
A working machine according to an embodiment of the present invention is equipped with a function to prevent interference between a lifting magnet (6) and a cab (10), wherein the working machine comprises: a lower traveling body (1); an upper revolving body (3); the cab (10); an attachment including a boom (4) and an arm (5); a boom angle sensor (S1) that detects the rotational angle of the boom (4); an arm angle sensor (S2) that detects the rotational angle of the arm 5; an end attachment angle sensor (S3) that detects the rotational angle of the lifting magnet (6) that is attached to the distal end of the arm (5); and a controller (30) that restricts or stops the movement bringing together the lifting magnet (6) and the cab (10) when it is determined, on the basis of the outputs of the boom angle sensor (S1), the arm angle sensor (S2), and the end attachment angle sensor (S3), that the lifting magnet (6) has advanced into an interference prevention zone.
Inventors:
YUZAWA YOSHIMITSU (JP)
Application Number:
PCT/JP2017/012064
Publication Date:
October 05, 2017
Filing Date:
March 24, 2017
Export Citation:
Assignee:
SUMITOMO(S H I ) CONSTRUCTION MACHINERY CO LTD (JP)
International Classes:
E02F3/43; E02F9/24
Foreign References:
| JP2010270523A | 2010-12-02 | |||
| JP2010265620A | 2010-11-25 | |||
| JP2016030954A | 2016-03-07 | |||
| JPH03221628A | 1991-09-30 | |||
| JP2014163156A | 2014-09-08 |
Other References:
See also references of EP 3438351A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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