Title:
HOOK-EQUIPPED WORK TOOL LINK, CONSTRUCTION MACHINE, AND HOOK FIXING METHOD FOR HOOK-EQUIPPED WORK TOOL LINK
Document Type and Number:
WIPO Patent Application WO/2018/173199
Kind Code:
A1
Abstract:
A hook (2) is supported by a linking member (1) so as to be movable between a fixed position and a release position. By moving in the longitudinal direction (LD) with respect to the linking member (1), a pin (3) is movable between a locked position where the pin (3) is inserted into the hook portion (2a) of the hook (2) in the fixed position and an unlocked position where the pin (3) is out of the hook portion (2a). A protruding member (4) is rotatable between a movable position and a movement restricted position about the pin (3) when the pin (3) is in the locked position. When the protruding member (4) is in the movable position, an assisting member (6) allows movement of the pin (3) between the locked position and the unlocked position of the pin (3), whereas when the protruding member (4) is in the movement restricted position, the assisting member (6) restricts movement of the pin (3) to the unlocked position.
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Inventors:
KOBAYASHI HIDEHIKO (JP)
MATSUDA NAOTSUNA (JP)
YOTSUZUKA HIRONORI (JP)
MATSUDA NAOTSUNA (JP)
YOTSUZUKA HIRONORI (JP)
Application Number:
PCT/JP2017/011744
Publication Date:
September 27, 2018
Filing Date:
March 23, 2017
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
International Classes:
B66C1/68; E02F3/36
Foreign References:
| KR20050111861A | 2005-11-29 | |||
| JP2007191260A | 2007-08-02 | |||
| JP2002104767A | 2002-04-10 | |||
| JP2013136899A | 2013-07-11 | |||
| CN201016175Y | 2008-02-06 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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