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Patent Searching and Data


Title:
HYDRAULIC HOSES AND WORKING MACHINE USING SAME
Document Type and Number:
WIPO Patent Application WO/2015/132841
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a hydraulic device which is configured so that, when a hydraulic hose is damaged, the hydraulic device can prevent the leakage of operating fluid by reliably closing a valve provided to a joint for the hydraulic hose and maintaining the closed state; or a working machine. A hydraulic hose (11) is disposed at a hydraulically operated joint section (2) and supplies hydraulic fluid. The hydraulic hose (11) is provided with a wire (12) extending through the inside of the hydraulic hose (11); and a valve (15) for closing, when the hydraulic hose (11) is damaged, a hydraulic flow passage through the operation of the wire (12).

Inventors:
NAKAMURA SATOSHI (JP)
HATTORI MAKOTO (JP)
EGAWA SAKU (JP)
TAMAMOTO JUNICHI (JP)
Application Number:
PCT/JP2014/055213
Publication Date:
September 11, 2015
Filing Date:
March 03, 2014
Export Citation:
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Assignee:
HITACHI LTD (JP)
International Classes:
F17D5/02; F16K27/00; F16K35/06; F16L29/00
Foreign References:
JP2013100849A2013-05-23
JPH02166096A1990-06-26
JPH0640584U1994-05-31
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
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