JPH0293178U - - Google Patents
Info
- Publication number
- JPH0293178U JPH0293178U JP294089U JP294089U JPH0293178U JP H0293178 U JPH0293178 U JP H0293178U JP 294089 U JP294089 U JP 294089U JP 294089 U JP294089 U JP 294089U JP H0293178 U JPH0293178 U JP H0293178U
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- chamber
- diaphragm
- protrusions
- communication passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011324 bead Substances 0.000 claims 1
- 230000009466 transformation Effects 0.000 claims 1
Landscapes
- Braking Systems And Boosters (AREA)
Description
第１図は本考案にかゝるタンデム型気圧式倍力
装置の断面図、第２図はその要部拡大断面図、第
３図は同じくその要部拡大平面図、第４図は第１
図の―矢視線に沿う断面図、第５図はリング
状部材の平面図、第６図は第５図の―矢視線
に沿う断面図、第７図は本タンデム型気圧式倍力
装置の正面図である。
１…フロントシエル、２…リヤシエル、３…セ
ンタープレート、４…バルブボデー、７，８…パ
ワーピストン、９，１０…ダイヤフラム、１２…
連通路、１２ａ…開口部、１４…プランジヤ、１
５…入力軸、１８…ポペツト弁、２１…出力軸、
３０ａ…段差部、３１…突条、３５…リング状部
材、３８…係合部、Ａ，Ｃ…定圧室、Ｂ，Ｄ…変
圧室。
Fig. 1 is a sectional view of a tandem pneumatic booster according to the present invention, Fig. 2 is an enlarged sectional view of its main parts, Fig. 3 is an enlarged plan view of its main parts, and Fig. 4 is an enlarged plan view of its main parts.
Fig. 5 is a plan view of the ring-shaped member, Fig. 6 is a sectional view taken along the - arrow line in Fig. 5, and Fig. 7 is a cross-sectional view of the present tandem pneumatic booster. It is a front view. 1...Front shell, 2...Rear shell, 3...Center plate, 4...Valve body, 7, 8...Power piston, 9, 10...Diaphragm, 12...
Communication path, 12a...opening, 14...plunger, 1
5...Input shaft, 18...Poppet valve, 21...Output shaft,
30a...stepped portion, 31...projection, 35...ring-shaped member, 38...engaging portion, A, C...constant pressure chamber, B, D...variable pressure chamber.
Claims (1)
ング内をセンタープレートで前・後室に二分割す
ると共に、前記リヤシエルおよびセンタープレー
トにバルブボデーを摺動自在に嵌装し、該バルブ
ボデーにはフロントパワーピストンとリヤパワー
ピストンとをそれぞれダイヤフラムと共に結合し
、前記ダイヤフラムにより区画されたフロント定
圧室とリヤ定圧室を連通路にて導通させると共に
、フロント変圧室とリヤ変圧室を前記バルブボデ
ーに設けた連通路にて導通し、前記バルブボデー
に内蔵したバルブ機構を入力軸に連動させること
により前記各パワーピストンに推力を発生させ、
この推力をバルブボデーを介して出力軸に伝達す
るようにしたタンデム型気圧式倍力装置において
、前記フロント変圧室に位置する前記バルブボデ
ーの外周の、前記連通路の開口部を含む円周上に
突条を断続的に設け、前記バルブボデーに嵌装さ
れ内周に係止部を有するリング状部材を前記突条
の後方から各突条の間を通過、回転させて、その
係止部を前記突条に係合させ、該リング状部材と
前記バルブボデーの前端段差部とで前記フロント
パワーピストンの内周縁部およびダイヤフラムの
内周ビード部を挟持したことを特徴とするタンデ
ム型気圧式倍力装置。 The inside of the housing, which consists of a front shell and a rear shell, is divided into front and rear chambers by a center plate, and a valve body is slidably fitted into the rear shell and center plate, and the valve body has a front power piston and a rear chamber. The power pistons are connected to each other with a diaphragm, and the front constant pressure chamber and the rear constant pressure chamber separated by the diaphragm are communicated through a communication passage, and the front pressure change chamber and the rear pressure change chamber are connected to each other through a communication passage provided in the valve body. conduction, and generate thrust in each of the power pistons by interlocking the valve mechanism built in the valve body with the input shaft;
In a tandem pneumatic booster configured to transmit this thrust to an output shaft via a valve body, a circumference including an opening of the communication passage on the outer periphery of the valve body located in the front pressure transformation chamber protrusions are provided intermittently on the valve body, and a ring-shaped member fitted to the valve body and having a locking portion on the inner periphery is passed from behind the protrusions and rotated between each of the protrusions, and the locking portion is is engaged with the protrusion, and the inner circumferential edge of the front power piston and the inner circumferential bead of the diaphragm are sandwiched between the ring-shaped member and the front end stepped portion of the valve body. booster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP294089U JPH0525349Y2 (en) | 1989-01-13 | 1989-01-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP294089U JPH0525349Y2 (en) | 1989-01-13 | 1989-01-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0293178U true JPH0293178U (en) | 1990-07-24 |
| JPH0525349Y2 JPH0525349Y2 (en) | 1993-06-25 |
Family
ID=31204140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP294089U Expired - Lifetime JPH0525349Y2 (en) | 1989-01-13 | 1989-01-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0525349Y2 (en) |
-
1989
- 1989-01-13 JP JP294089U patent/JPH0525349Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0525349Y2 (en) | 1993-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0340277U (en) | ||
| JPH0293178U (en) | ||
| JPH0445172U (en) | ||
| JPH0371964U (en) | ||
| JPH0266364U (en) | ||
| JPS62103766U (en) | ||
| JPH0133416Y2 (en) | ||
| US4996904A (en) | Negative pressure booster equipment | |
| JPH03107268U (en) | ||
| JPH0569035B2 (en) | ||
| JP2545943B2 (en) | Brake booster | |
| JPS60154952A (en) | Tandem brake booster | |
| JPH0411898Y2 (en) | ||
| JPH02125474U (en) | ||
| JPS62145872U (en) | ||
| JPH0412847Y2 (en) | ||
| JPH023965U (en) | ||
| JPS6365U (en) | ||
| JPS62100261U (en) | ||
| JPH0411178U (en) | ||
| JP2545944B2 (en) | Brake booster | |
| JPS62181466U (en) | ||
| JP2537332Y2 (en) | Tandem brake booster | |
| JPS62112660U (en) | ||
| JPH0296351U (en) |