Title:
CARGO PLATFORM LIFTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/110606
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a cargo platform lifting device comprising a power unit that has an economically superior configuration. A valve block is connected to a hydraulic actuator and is made up of one main block 41 and at least one sub block 42. The main block 41 has incorporated therein a check valve 411 for preventing backflow of working fluid, a relief valve 412 for suppressing a working fluid overpressure state, a solenoid valve 413 that is opened when the hydraulic actuator contracts, and a main block fluid passage 414 that is connected to each of the valves. The at least one sub block 42 has incorporated therein at least one sub block fluid passage 421 connected to the main block fluid passage 414.
Inventors:
HORIKAWA KATSUHIRO (JP)
TSUJI MIKIHIRO (JP)
KATAOKA SHOTA (JP)
TSUJI MIKIHIRO (JP)
KATAOKA SHOTA (JP)
Application Number:
PCT/JP2017/044760
Publication Date:
June 21, 2018
Filing Date:
December 13, 2017
Export Citation:
Assignee:
KYOKUTO KAIHATSU KOGYO CO (JP)
International Classes:
B60P1/44; B65G67/24; F15B15/22
Foreign References:
| JP2012091743A | 2012-05-17 | |||
| JPS60170071A | 1985-09-03 | |||
| JPS392235Y1 | 1964-01-30 | |||
| JP2008049763A | 2008-03-06 | |||
| JP2014020433A | 2014-02-03 | |||
| US20130145751A1 | 2013-06-13 | |||
| US4763487A | 1988-08-16 | |||
| DE3630850A1 | 1988-03-17 | |||
| DE4430437A1 | 1996-03-07 | |||
| JPS3526017Y1 | 1960-10-05 | |||
| JPS5298092A | 1977-08-17 |
Attorney, Agent or Firm:
FUJIMOTO, Noboru (JP)
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