JPS61158562U

JPS61158562U -

Info

Publication number: JPS61158562U
Application number: JP4246185U
Authority: JP
Priority date: 1985-03-25
Filing date: 1985-03-25
Publication date: 1986-10-01
Also published as: JPH0428287Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の縦断面図、第２図
は第１図中の弁座部材の縦断面の半分省略図、第
３図は第２図の下方向から見た図、第４図は弁座
部材が逆さに組付けられた場合の制御性能検査時
の状態を示す縦断面部分図、第５図は他実施例の
弁座部材の第２図に対応する図、第６図は従来装
置の弁座部材の第２図に対応する図、第７図は第
６図の下方向から見た図、第８図は従来装置の第
４図に対応する図である。２４……ブレーキ液圧制御弁装置、２８……ボ
デー、３６……段付きシリンダ室、３８……マス
タシリンダ接続口、４０……リヤホイルシリンダ
接続口、４４……弁座部材、４６……通孔、５１
……溝、５２……ベース部、５４……環状リツプ
部、５６……突起、６０……ピストン、６４……
弁部、７２……スプリング。 FIG. 1 is a vertical cross-sectional view of an embodiment of the present invention, FIG. 2 is a partially omitted vertical cross-sectional view of the valve seat member in FIG. 1, and FIG. 3 is a view seen from below in FIG. FIG. 4 is a vertical cross-sectional partial view showing the state at the time of control performance inspection when the valve seat member is assembled upside down; FIG. 5 is a view corresponding to FIG. 2 of the valve seat member of another embodiment; 6 is a view of the valve seat member of the conventional device corresponding to FIG. 2, FIG. 7 is a view from below of FIG. 6, and FIG. 8 is a view of the conventional device corresponding to FIG. 4. 24... Brake fluid pressure control valve device, 28... Body, 36... Stepped cylinder chamber, 38... Master cylinder connection port, 40... Rear wheel cylinder connection port, 44... Valve seat member, 46... Connection Hole, 51
... Groove, 52 ... Base part, 54 ... Annular lip part, 56 ... Protrusion, 60 ... Piston, 64 ...
Valve part, 72...spring.

Claims

[Scope of utility model registration request]

A housing having a stepped cylinder chamber, a master cylinder connection port and a rear wheel cylinder connection port communicating with the large diameter portion and the small diameter portion of the stepped cylinder chamber, respectively, and a housing disposed within the large diameter portion of the stepped cylinder chamber. , a base portion having a through hole in the center and having one side thereof in contact with the boundary step between the large diameter portion and the small diameter portion of the stepped cylinder, and a tip portion thereof extending from the outer peripheral portion of the other side of the base portion. a valve seat member made of an elastic body having an annular lip portion that contacts the circumferential surface of the large diameter portion of the stepped cylinder chamber on the outer periphery; and a through hole in the base portion of the valve seat member; It penetrates with an annular gap formed in between, one end of which receives rear wheel cylinder hydraulic pressure, the other end of which is exposed to air, and one side of the valve seat member from the small diameter side of the stepped cylinder chamber. a piston having a valve portion that contacts and separates from an inner peripheral portion to close and open a through hole of a valve seat member; and a spring that biases the piston to separate the valve seat from the valve seat member. In the brake fluid pressure control valve device, when the valve seat member is assembled upside down on the other side inner circumferential portion of the valve seat member, the valve portion of the piston is attached to the other side inner circumferential portion of the valve seat member. A brake fluid pressure control valve device formed with a protrusion or groove that prevents the passage hole of the valve seat member from being closed by contacting the brake fluid pressure control valve device.