JPS59184261U

JPS59184261U - Residual pressure valve device

Info

Publication number: JPS59184261U
Application number: JP7934383U
Authority: JP
Inventors: 仁久保田; 一郎石渡
Original assignee: 日産自動車株式会社; 株式会社ナブコ
Priority date: 1983-05-26
Filing date: 1983-05-26
Publication date: 1984-12-07
Also published as: JPS6312028Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は、従来の残圧弁装置を示す縦断面図、第２図は
、第１図に示す弁部材の底面図、第３図は、この考案の
一実施例を示すもので流体を充填する前の状態を示す縦
断面図、第４図は、第３図に示す実施例における流体充
填後の状態を示す要部断面図である。１・・・マスクシリンダ（圧力発生源）、４・・・液圧
発生室、８・・・室、９・・・弁はね、１５・・・弁本
体、１５ａ・・・小径孔（第１の開口）、１６・・・弁
プラグ、１６ａ・・・貫通孔（第２の開口）、１６ｂ・
・・端面（弁座）、１７・・・支持部材、１７ａ・・・
軸部、１７ｂ・・・鍔部、１７Ｃ・・・径方向溝、１７
ｄ・・・係止部、１７ｅ・・・通路、１８・・・一方向
弁部材、１８ａ・・・弁口、１８ｂ・・・筒軸部、１８
Ｃ・・・穴、１８ｄ・・・段部、１９・・・連通路、Ａ
・・・残圧弁装置。Fig. 1 is a vertical cross-sectional view showing a conventional residual pressure valve device, Fig. 2 is a bottom view of the valve member shown in Fig. 1, and Fig. 3 is a diagram showing an embodiment of this invention filled with fluid. FIG. 4 is a longitudinal cross-sectional view showing the state before filling, and FIG. 4 is a cross-sectional view of a main part showing the state after fluid filling in the embodiment shown in FIG. DESCRIPTION OF SYMBOLS 1...Mask cylinder (pressure generation source), 4...Liquid pressure generation chamber, 8...Chamber, 9...Valve spring, 15...Valve body, 15a...Small diameter hole (No. 1 opening), 16... valve plug, 16a... through hole (second opening), 16b...
... End face (valve seat), 17... Support member, 17a...
Shaft portion, 17b... Flange portion, 17C... Radial groove, 17
d...Locking portion, 17e...Passage, 18...One-way valve member, 18a...Valve port, 18b...Cylinder shaft portion, 18
C...hole, 18d...step, 19...communicating passage, A
...Residual pressure valve device.

Claims

[Scope of utility model registration request]

A first opening connected to a pressure generation source and a second opening connected to a fluid pressure actuator are communicated with a chamber in the valve body, and there is no flow from the pressure generation source side into this chamber. A one-way valve member having a valve port that only allows fluid to flow toward the fluid pressure actuator is disposed, and the one-way valve member is biased toward the second opening side by a valve spring. one-way valve member,
The valve seat formed at the end of the second opening on the chamber side can be seated on the valve seat, and the first opening and the second opening are connected only when the one-way valve member is separated from the valve seat. The residual pressure valve device has a shaft portion passing through the valve port between the one-way valve member and the valve spring, and resists the biasing force of the valve spring to 7 A support member that is locked to the valve member is interposed, and the locking force of this locking means is not released only by the biasing force of the valve spring, but a predetermined operating pressure is applied from the pressure source side. The size is such that the support member moves toward the valve seat side relative to the one-way valve member when the support member is released, and further,
The shaft portion is provided with a screw that connects the first opening side and the second opening side before the locking means is released, and connects the second opening side after the locking means is released. A residual pressure valve device characterized by providing a communicating passage.