JPS61101066U

JPS61101066U -

Info

Publication number: JPS61101066U
Application number: JP18707584U
Authority: JP
Priority date: 1984-12-10
Filing date: 1984-12-10
Publication date: 1986-06-27

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例としてのハイドロブ
ースタの平面図、第２図は第１図のＸ―Ｘ線断面
図、第３図は第１図のＹ―Ｙ線断面図、第４図ａ
，ｂは同上装置内のボールバルブの作動を説明す
る図、第５図は同上装置の利用される油圧制動装
置の油圧回路図をそれぞれ示している。１……ブースタハウジング、２……マスタシリ
ンダ、４……入力ピストン、５……出力ピストン
、２７……排油口、３４……中央油路、３６……
倍力室、３７……中央油圧室、３８……ボールバ
ルブ、４０……圧油受口、４８……気密穴、１０
１……取付部、５０１……油圧受面。 Fig. 1 is a plan view of a hydro booster as an embodiment of the present invention, Fig. 2 is a sectional view taken along the line X-X in Fig. 1, Fig. 3 is a sectional view taken along the line Y-Y in Fig. 1, and Fig. 4 is a sectional view taken along the line Y--Y in Fig. 1. Diagram a
, b are diagrams illustrating the operation of the ball valve in the above device, and FIG. 5 is a hydraulic circuit diagram of a hydraulic braking device used in the above device. 1... Booster housing, 2... Master cylinder, 4... Input piston, 5... Output piston, 27... Oil drain port, 34... Central oil passage, 36...
Boost chamber, 37...Central hydraulic chamber, 38...Ball valve, 40...Pressure oil socket, 48...Airtight hole, 10
1...Mounting part, 501...Hydraulic pressure receiving surface.

Claims

[Scope of utility model registration request]

A booster housing with a master cylinder attached to one end and a mounting part to the vehicle body formed at the other end, an input piston that is slidably fitted into an airtight hole on the mounting part side, and a press end of the input piston and a master cylinder. an output piston slidably disposed between the cylinder and the booster housing; a booster chamber through which the input piston passes and which faces the hydraulic pressure receiving surface of the output piston; an inflow passage that communicates with the pressure oil socket of the input piston, an outflow passage that communicates from the pressing end side opening of the central oil passage in the input piston with the oil drain port on the mounting portion side, and the central oil pressure chamber. and a switching valve that closes the pushing end side opening and communicates the inflow path and the boosting chamber when the input piston is pressed, and shuts off the inflow path and communicates the boosting chamber and the pushing end side opening when the input piston is not in operation. Hydro booster with.