Title:
VALVE DEVICE AND VEHICLE HEIGHT ADJUSTMENT DEVICE EQUIPPED WITH SAID VALVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/260923
Kind Code:
A1
Abstract:
This valve device (10) comprises an operation part (20), a pressing member (30), a first valve (70), a housing (80), and a second valve (120). The operation part (20) comprises an operation rod (24) that can switch between: a first state of being present at a most retreated first position (Q1); a second state of being displaced by a first advancement/retreatment amount (St1) from the first position (Q1); and a third state of being displaced by a second advancement/retreatment amount (St2) greater than the first advancement/retreatment amount (St1) from the first position (Q1). The pressing member (30) advances by the same advancement/retreatment amount in the same direction as the operation rod (24) by being pressed by the operation rod (24). The first valve (70) performs opening/closing operations in accordance with the displacement amounts of the operation rod (24) and the pressing member (20) from the first position (Q1). The housing (80) accommodates the first valve (70). The second valve (120) opens/closes the housing (80) inward and outward by switching between the first state and the second state.
Inventors:
FUJIKAWA YOSUKE (JP)
Application Number:
PCT/JP2020/025261
Publication Date:
December 30, 2021
Filing Date:
June 26, 2020
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F16K31/06; F16K31/44
Foreign References:
| JP6646796B1 | 2020-02-14 | |||
| JP2016191435A | 2016-11-10 | |||
| JP6405076B1 | 2018-10-17 |
Attorney, Agent or Firm:
SHIMODA, Yo-ichiro et al. (JP)
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