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Patent Searching and Data


Title:
LOCKING DEVICE AND OUTRIGGER
Document Type and Number:
WIPO Patent Application WO/2018/150929
Kind Code:
A1
Abstract:
[Problem] To provide a locking device whereby entry of foreign matter can be reduced. [Solution] A locking device 60 fixed to an arm member 52 capable of extending and retracting with respect to a box member 51 is provided with a bolt 61, a lever member 62 supported by the bolt 61 so as to be able to rotate to a first position and a second position, and an engaging member 63 supported by the bolt 61 so as to be able to rotate to a third position of engaging with the box member 51 and a fourth position of separating from the box member 51. The lever member 62 is provided with a top plate 81 and a gripping arm 83 extending from the top plate 81. The engaging member 63 is provided with: a proximal-end part 91 disposed facing the top plate 81 further inside in a radial direction than the top plate 81 and supported by the bolt 61 so as to be able to rotate; and a claw part 92 for engaging with the box member 51 in the third position, the claw part 92 extending from the proximal-end part 91. An inner surface 81A of the top plate 81 is curved along the circumferential direction of the bolt 61. An outer surface 93 of the proximal-end part 91 is curved along the circumferential direction, and faces the inner surface 81A in the vicinity of the inner surface 81A in the radial direction.

Inventors:
ATSUMI Masashi (Ko-34 Shinden-ch, Takamatsu-shi Kagawa 85, 〒7610185, JP)
Application Number:
JP2018/003834
Publication Date:
August 23, 2018
Filing Date:
February 05, 2018
Export Citation:
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Assignee:
TADANO LTD. (Ko-34, Shinden-cho Takamatsu-sh, Kagawa 85, 〒7610185, JP)
International Classes:
B60S9/02; B66C23/78
Foreign References:
JP2016175622A2016-10-06
US20080265543A12008-10-30
Attorney, Agent or Firm:
MAZDA, Tomohiro et al. (HOHSHIN IP FIRM, 9th Fl. TANIMACHI CENTER Bldg., 2-4-5 Tanimachi, Chuo-ku, Osaka-sh, Osaka 12, 〒5400012, JP)
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