Title:
SUPPORT LEG OPERATION DEVICE OF WORK VEHICLE
Document Type and Number:
Japanese Patent JP2017056831
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To promote simpler structure, lower cost, and lighter weight of a support leg operation device by allowing protrusion and storage of a plurality of shrinkable arms which support a support leg by using a single drive source, relating to an operation device for the support leg that supports a work vehicle such as a concrete pump vehicle.SOLUTION: A shrinkable arm that supports a support leg 40 of a vehicle comprises an outer arm 10, an inner arm 20, and a jack arm 30. These arms are allowed to contract/extend through chain mechanisms C1, C2 by using a single hydraulic motor M.SELECTED DRAWING: Figure 2
Inventors:
INOUE MIKIYA
OGINO HIROYUKI
NAKAJIMA CHIZURU
OGINO HIROYUKI
NAKAJIMA CHIZURU
Application Number:
JP2015183051A
Publication Date:
March 23, 2017
Filing Date:
September 16, 2015
Export Citation:
Assignee:
KYOKUTO KAIHATSU KOGYO CO
International Classes:
B60S9/12; B66C23/78
Domestic Patent References:
| JPS52162611U | 1977-12-09 | |||
| JPH03116384U | 1991-12-02 | |||
| JPH01133062U | 1989-09-11 | |||
| JPH02105986U | 1990-08-23 |
Foreign References:
| US8757663B1 | 2014-06-24 |
Attorney, Agent or Firm:
Ochiai Patent Office
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