JPS6058464U

JPS6058464U - Rapid filling type master cylinder

Info

Publication number: JPS6058464U
Application number: JP15120583U
Authority: JP
Inventors: 吉伸水崎
Original assignee: 日信工業株式会社
Priority date: 1983-09-29
Filing date: 1983-09-29
Publication date: 1985-04-23
Also published as: JPS6332038Y2

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 drawings]

第１図は本考案の一実施例を示す断面正面図、第２図は
第１図の要部拡大断面図である。１はシリヅダ本体、２は小径シリンダ孔、３は大径シリ
ンダ孔、４は小径ピストン、５は異径ピストン、５ａは
示径先頭部、５ｂは大径後頭部、６は小径側第１液圧室
、７は小径側第２液圧室、８は大径側液圧室、１４はリ
ザーバ、１６はリリーフポート、１７はサプライポート
、１９は液通路、２０は弁室、２０ａは弁座部、２１は
第１液通孔、２２は第２液通孔、２３は圧力制御弁、２
４は第１弁、２４ａは連通孔、２４ｂは胴部、２４ｃは
スプリング受部、２４ｄはガイド部、２４ｅは半球状の
シール部、２４ｆはテーパ溝、２５は第２弁、２５ａは
開口部、２５ｂは液通溝、２５ｃは弁座部、２５ｄはフ
、ランジ部、２５ｅはバルブケース、２５ｆは浮子弁、
２７はスプリングである。FIG. 1 is a sectional front view showing an embodiment of the present invention, and FIG. 2 is an enlarged sectional view of the main part of FIG. 1 is the cylinder body, 2 is the small diameter cylinder hole, 3 is the large diameter cylinder hole, 4 is the small diameter piston, 5 is the different diameter piston, 5a is the front diameter part, 5b is the large diameter back part, 6 is the first hydraulic pressure on the small diameter side 7 is a small-diameter second hydraulic pressure chamber, 8 is a large-diameter hydraulic chamber, 14 is a reservoir, 16 is a relief port, 17 is a supply port, 19 is a liquid passage, 20 is a valve chamber, and 20a is a valve seat. , 21 is a first liquid passage hole, 22 is a second liquid passage hole, 23 is a pressure control valve, 2
4 is a first valve, 24a is a communication hole, 24b is a body part, 24c is a spring receiving part, 24d is a guide part, 24e is a hemispherical seal part, 24f is a tapered groove, 25 is a second valve, 25a is an opening part , 25b is a liquid passage groove, 25c is a valve seat part, 25d is a flange, flange part, 25e is a valve case, 25f is a float valve,
27 is a spring.

Claims

[Scope of utility model registration request]

A piston having a small-diameter head and a large-diameter head is fluid-tightly and movably inserted into an irregularly shaped mask cylinder having a small-diameter cylinder hole and a large-diameter cylinder hole arranged in series, and a small-diameter cylinder in front of the small-diameter head is inserted. A small-diameter hydraulic pressure chamber is defined in the hole, a large-diameter hydraulic chamber is defined between the rear of the small-diameter head and the front of the large-diameter head, and a valve chamber is defined in the fluid passage that communicates the reservoir with the two hydraulic pressure chambers. A valve is provided, in which a valve body with a seal formed between a reservoir and both hydraulic pressure chambers in the valve chamber is brought into pressure contact with a valve seat by a spring, and fluid pressure difference allows flow in the direction of the reservoir, and a valve in the direction opposite to the reservoir. In a quick-filling mask cylinder equipped with a pressure control valve having a valve that allows flow, the valve that allows flow in a direction opposite to the reservoir of the pressure control valve is located at at least one location on the periphery of the circular opening. a cylindrical valve case equipped with a valve seat part on the top having a fluid passage for releasing residual pressure; 1. A quick-filling mask cylinder comprising a semi-flexible spherical float valve that is deformed by hydraulic pressure to reduce the opening area of a liquid passage.