JPH02136760U - - Google Patents

Info

Publication number
JPH02136760U
JPH02136760U JP4638489U JP4638489U JPH02136760U JP H02136760 U JPH02136760 U JP H02136760U JP 4638489 U JP4638489 U JP 4638489U JP 4638489 U JP4638489 U JP 4638489U JP H02136760 U JPH02136760 U JP H02136760U
Authority
JP
Japan
Prior art keywords
shell
bead
center
pressure booster
diaphragm
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.)
Pending
Application number
JP4638489U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP4638489U priority Critical patent/JPH02136760U/ja
Publication of JPH02136760U publication Critical patent/JPH02136760U/ja
Pending legal-status Critical Current

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  • Braking Systems And Boosters (AREA)
  • Actuator (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第1図は、本考案の一実施例のタンデム気圧倍
力装置を示す断面図、第2図は、同装置のリヤシ
エルおよびリヤダイヤフラムを示す拡大断面図、
第3図ないし第7図は、それぞれ本考案の他の実
施例のタンデム気圧倍力装置におけるリヤシエル
およびリヤダイヤフラムを示す断面図、第8図は
、従来のタンデム気圧倍力装置の一例を示す断面
図、第9図は、同装置の組み付け例を示す断面図
である。 1……フロントシエル、2……リヤシエル、3
……ハウジング、4……センタシエル、5,6…
…前、後室、8……リヤダイヤフラム、9……ビ
ード押え部、9a……外面部、10……ビード、
10a……内面部。
FIG. 1 is a sectional view showing a tandem pressure booster according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view showing the rear shell and rear diaphragm of the same device,
3 to 7 are cross-sectional views showing the rear shell and rear diaphragm in tandem pressure boosters according to other embodiments of the present invention, and FIG. 8 is a cross-sectional view showing an example of a conventional tandem pressure booster. 9 are sectional views showing an example of how the device is assembled. 1...Front shell, 2...Rear shell, 3
...Housing, 4...Centaciel, 5, 6...
...Front, rear chamber, 8...Rear diaphragm, 9...Bead holding part, 9a...Outer surface part, 10...Bead,
10a...Inner surface.

Claims (1)

【実用新案登録請求の範囲】 フロントシエルおよびリヤシエルからなるハウ
ジング内をセンタシエルで前、後室に2分割し、
前、後室にそれぞれフロントダイヤフラム、リヤ
ダイヤフラムを配し、リヤダイヤフラムの外周ビ
ード部を、リヤシエル外周部に形成したビード押
え部とフロントシエルあるいはセンタシエルとで
気密的に保持するタンデム気圧倍力装置において
、 前記ビード押え部を、その外面部が該タンデム
気圧倍力装置の軸中心方向と平行となるように円
筒状に形成し、 前記外周ビード部を、その内面部が前記ビード
押え部の外面部に沿うように前記軸中心方向と平
行にリング状に形成し、 該外径ビード部の外周部に少なくとも前記セン
タシエルの外周端部に係合する係合部を形成した
ことを特徴とするタンデム気圧倍力装置。
[Scope of claim for utility model registration] The inside of the housing, which consists of a front shell and a rear shell, is divided into two into front and rear chambers by a center shell,
A tandem pressure booster in which a front diaphragm and a rear diaphragm are arranged in the front and rear chambers, respectively, and the outer bead of the rear diaphragm is held airtight by a bead presser formed on the outer periphery of the rear shell and a front shell or center shell. The bead presser is formed into a cylindrical shape so that its outer surface is parallel to the axial center direction of the tandem air pressure booster, and the outer circumferential bead is formed so that its inner surface is parallel to the outer surface of the bead presser. The center shell is formed into a ring shape parallel to the axis center direction, and an engaging portion that engages at least the outer peripheral end of the center shell is formed on the outer peripheral portion of the outer diameter bead portion. Tandem pressure booster.
JP4638489U 1989-04-20 1989-04-20 Pending JPH02136760U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4638489U JPH02136760U (en) 1989-04-20 1989-04-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4638489U JPH02136760U (en) 1989-04-20 1989-04-20

Publications (1)

Publication Number Publication Date
JPH02136760U true JPH02136760U (en) 1990-11-14

Family

ID=31561423

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4638489U Pending JPH02136760U (en) 1989-04-20 1989-04-20

Country Status (1)

Country Link
JP (1) JPH02136760U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63301161A (en) * 1987-05-30 1988-12-08 Nissin Kogyo Kk Tandem type negative pressure booster

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63301161A (en) * 1987-05-30 1988-12-08 Nissin Kogyo Kk Tandem type negative pressure booster

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