Title:
FLUID PRESSURE CONTROL DEVICE AND FORKLIFT PROVIDED THEREWITH
Document Type and Number:
WIPO Patent Application WO/2018/193741
Kind Code:
A1
Abstract:
This fluid pressure control device (100, 200) is provided with: a first control valve (30) which controls the flow rate of a hydraulic oil supplied to a lift cylinder (15); a second control valve (40) which controls the flow rate of the hydraulic oil supplied to a tilt cylinder (16); a high pressure relief valve (27) which limits the pressure in a supply passage (21) to a first limit pressure; and a low pressure relief device (91) which, when hydraulic oil is supplied to the tilt cylinder (16) through the second control valve (40), limits the pressure in the supply passage (21) to a second limit pressure lower than the first limit pressure.
Inventors:
ISHIBASHI KOKI (JP)
NAKAMURA MASAYUKI (JP)
TERAO TAKESHI (JP)
NAKAMURA MASAYUKI (JP)
TERAO TAKESHI (JP)
Application Number:
PCT/JP2018/008818
Publication Date:
October 25, 2018
Filing Date:
March 07, 2018
Export Citation:
Assignee:
KYB CORP (JP)
International Classes:
F15B11/028; B66F9/22; F15B11/00; F15B11/16
Domestic Patent References:
| WO2016143167A1 | 2016-09-15 |
Attorney, Agent or Firm:
GOTOH & PARTNERS (JP)
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