JPH0266363U

JPH0266363U -

Info

Publication number: JPH0266363U
Application number: JP14674288U
Authority: JP
Priority date: 1988-11-10
Filing date: 1988-11-10
Publication date: 1990-05-18
Anticipated expiration: 2003-03-26
Also published as: JPH0512141Y2

Description

[Brief explanation of drawings]

第１図乃至第３図は本考案の一実施例を示し、
第１図はマスタシリンダの縦断面正面図、第２図
は縦断面側面図、第３図は弁体の斜視図、第４図
は弁体の他の実施例を示す斜視図である。１……マスタシリンダ、２……シリンダ本体、
３……小径部、４……大径部、５……シリンダ孔
、６……小径ピストン部、７……大径ピストン部
、８……ピストン、９……液圧室、１１……補給
液室、１６……リザーバ、１７……上部室、１８
……側部室、１９……通液室、２０……小径部、
２１……大径部、２２……弁座、２３……液路、
２４……リリーフポート、２５……サプライポー
ト、２６……弁体、３１……当接面、３２……バ
イパス、３９……カバー。 1 to 3 show an embodiment of the present invention,
FIG. 1 is a vertical cross-sectional front view of the master cylinder, FIG. 2 is a vertical cross-sectional side view, FIG. 3 is a perspective view of the valve body, and FIG. 4 is a perspective view showing another embodiment of the valve body. 1... Master cylinder, 2... Cylinder body,
3... Small diameter part, 4... Large diameter part, 5... Cylinder hole, 6... Small diameter piston part, 7... Large diameter piston part, 8... Piston, 9... Hydraulic pressure chamber, 11... Supply Liquid chamber, 16... Reservoir, 17... Upper chamber, 18
... Side chamber, 19 ... Liquid passage chamber, 20 ... Small diameter part,
21...Large diameter part, 22...Valve seat, 23...Liquid path,
24... Relief port, 25... Supply port, 26... Valve body, 31... Contact surface, 32... Bypass, 39... Cover.

Claims

[Claims for Utility Model Registration] 1. A stepped cylinder hole consisting of a small diameter part and a large diameter part is provided in the cylinder body, and a small diameter piston part and a large diameter piston part that slide on the small diameter part and the large diameter part, respectively, are provided in the cylinder body. A stepped piston having a diameter piston portion is fitted and inserted, a hydraulic pressure chamber is defined in front of the small diameter piston portion, a replenishment liquid chamber is defined between the small diameter piston portion and the large diameter piston portion, and a reservoir is defined. In a quick-filling master cylinder for a vehicle, which is integrally provided with a fluid passage chamber communicating with the cylinder hole, the reservoir includes an upper chamber located at the upper part of the cylinder body, and an upper chamber communicating with the upper chamber and the cylinder body. and a side chamber located on the side of the cylinder body, and the liquid passage chamber extends in the axial direction of the cylinder body at the lower part of the cylinder body,
It consists of a small diameter part located on the large diameter part side of the cylinder body and a large diameter part located on the small diameter part side, and the stepped part at the boundary thereof serves as a valve seat. a relief port that opens to the hydraulic pressure chamber and the small diameter portion of the liquid passage chamber; a supply port that opens to the replenishment liquid chamber of the cylinder hole and the small diameter portion of the liquid passage chamber; A substantially disk-shaped liquid passage having a large diameter portion of the liquid chamber and a liquid path opening to the liquid chamber, and forming a bypass with high flow resistance in the large diameter portion of the liquid passage chamber to communicate the large diameter portion and the small diameter portion. A quick-filling master cylinder for a vehicle, characterized in that a valve body is biased and attached to a valve seat. 2. Claim 1, wherein a rubber coating is applied to the contact surface of the valve body with the valve seat to make it liquid-tight.
Rapid filling type master cylinder for the vehicle described. 3. Claim 1, characterized in that the contact surface of the valve body with the valve seat is covered with a rubber cover to make it liquid-tight.
Rapid filling type master cylinder for the vehicle described.