JPS6343866U

JPS6343866U -

Info

Publication number: JPS6343866U
Application number: JP13644486U
Authority: JP
Priority date: 1986-09-05
Filing date: 1986-09-05
Publication date: 1988-03-24

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を説明するためのもの
であつて、第１図は制動液圧制御装置の概略構成
図、第２図は制動液圧制御装置の作動状態を示す
要部拡大断面図である。１…制動液圧制御装置本体、２…リア系統側の
入口孔、３…リア系統側の出口孔、５…タンデム
マスターシリンダ、７…リアホイールシリンダ、
９…フロント系統側の入口孔、１０…フロント系
統側の出口孔、１２…フロントホイールシリンダ
、１５…プランジヤ、２１，２５，４０…圧縮ば
ね、２２…第１の弁体、２３…嵌入孔、２４…第
２の弁体、３０，３１…通路、４２…連通路、４
５ｂ…オリフイス、４６…シート。 The drawings are for explaining one embodiment of the present invention, and FIG. 1 is a schematic configuration diagram of a brake fluid pressure control device, and FIG. 2 is an enlarged sectional view of a main part showing the operating state of the brake fluid pressure control device. It is a diagram. 1... Brake fluid pressure control device main body, 2... Inlet hole on the rear system side, 3... Outlet hole on the rear system side, 5... Tandem master cylinder, 7... Rear wheel cylinder,
9... Inlet hole on the front system side, 10... Outlet hole on the front system side, 12... Front wheel cylinder, 15... Plunger, 21, 25, 40... Compression spring, 22... First valve body, 23... Fitting hole, 24... Second valve body, 30, 31... Passage, 42... Communication passage, 4
5b... Orifice, 46... Seat.

Claims

[Scope of utility model registration request]

A control device body having an inlet hole connected to the rear system side of the tandem master cylinder and an outlet hole connected to the rear wheel cylinder, a flow path in the main body that communicates the inlet hole and the outlet hole, and a flow path disposed in the flow path. Usually, the first valve body is biased in one direction to separate from its valve seat, thereby allowing the inlet hole and the outlet hole to communicate with each other via the flow path, while also allowing the first valve body to communicate with the inlet hole and the outlet hole through the flow path. are each provided with a proportion valve that reduces the supplied liquid pressure at a predetermined rate and guides it to the outlet hole, and a second valve body is slidably fitted into the main body so as to face the proportion valve. , the first valve body and its valve seat are housed and arranged in the second valve body to constitute the proportion valve, and
Selecting the flow path on the upstream side and the flow path on the downstream side of the first valve body between one end surface of the second valve body and the bottom wall of the main body insertion hole into which it is inserted. A communication passage is formed to communicate and shut off the communication passage, and supply fluid pressure from the front system side of the tandem master cylinder is introduced to the rear surface of the second valve body, so that the communication passage is normally closed. In the brake fluid pressure control device, in order to suppress a sudden rise in brake fluid pressure on the rear system side in the main body when the brake fluid pressure supplied from the tandem master cylinder to the inlet hole suddenly increases, A brake fluid pressure control device characterized by having an orifice provided in the inlet hole.