JPS61148748U - - Google Patents

Info

Publication number
JPS61148748U
JPS61148748U JP1985033256U JP3325685U JPS61148748U JP S61148748 U JPS61148748 U JP S61148748U JP 1985033256 U JP1985033256 U JP 1985033256U JP 3325685 U JP3325685 U JP 3325685U JP S61148748 U JPS61148748 U JP S61148748U
Authority
JP
Japan
Prior art keywords
cylinder
diameter portion
large diameter
piston
liquid chamber
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
Application number
JP1985033256U
Other languages
Japanese (ja)
Other versions
JPH0547733Y2 (en
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 JP1985033256U priority Critical patent/JPH0547733Y2/ja
Priority to US06/831,635 priority patent/US4781024A/en
Priority to DE19863607254 priority patent/DE3607254A1/en
Priority to GB08605622A priority patent/GB2172064B/en
Publication of JPS61148748U publication Critical patent/JPS61148748U/ja
Application granted granted Critical
Publication of JPH0547733Y2 publication Critical patent/JPH0547733Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Transmission Of Braking Force In Braking Systems (AREA)
  • Sealing With Elastic Sealing Lips (AREA)

Description

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

第１図は本考案の一実施例の縦断面図、第２図
は第１図のＡ部拡大図、第３図は第２図中のリン
グ型カツプシールの断面図、第４図は第３図の左
方から見た図、第５図及び第６図はリング型カツ
プシールの組込み時の変形及びシール圧分布を示
すコンピユータ解析図で、第５図はフリー状態を
、第６図は組込み状態をそれぞれ示す。 符号の説明、１０……マスタシリンダ、１１…
…シリンダボデー、１２……シリンダ、１２ａ…
…シリンダ小径部、１２ｂ……シリンダ大径部、
１３……ピストン、１３ａ……ピストン大径部、
１３ｂ……ピストン小径部、２１……ピストンス
トツパ兼カツプシール係止部材、２２……リング
型カツプシール、２２ａ……ベース部、２２ｂ…
…外側リツプ部、２２ｃ……内側リツプ部、２２
ｆ……環状突出部、２９……サプライ液。 Fig. 1 is a longitudinal sectional view of one embodiment of the present invention, Fig. 2 is an enlarged view of part A in Fig. 1, Fig. 3 is a sectional view of the ring-shaped cap seal in Fig. 2, and Fig. 4 is a sectional view of the ring-shaped cap seal in Fig. 2. The figure seen from the left side of the figure, Figures 5 and 6 are computer analysis diagrams showing the deformation and seal pressure distribution when the ring-type cup seal is assembled. Figure 5 shows the free state, and Figure 6 shows the assembled state. are shown respectively. Explanation of symbols, 10... Master cylinder, 11...
...Cylinder body, 12...Cylinder, 12a...
...Cylinder small diameter part, 12b...Cylinder large diameter part,
13... Piston, 13a... Piston large diameter part,
13b... Piston small diameter portion, 21... Piston stopper and cup seal locking member, 22... Ring type cup seal, 22a... Base portion, 22b...
...Outer lip portion, 22c...Inner lip portion, 22
f...Annular protrusion, 29...Supply liquid.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 一端が開放したシリンダを有するシリンダボデ
ーと、前記シリンダの小径部内に摺動可能に嵌合
さた且つその一側にシリンダの小径部と接触する
カツプシールが取付けられた大径部と前記シリン
ダ外に突出する小径部とを有したピストンと、前
記シリンダの一端大径部内にシリンダボデーに対
して固定関係に配置されてその外側リツプ部にて
シリンダ大径部に接触するとともにその内側リツ
プ部にて前記ピストンの小径部に摺動可能に接触
するリング型カツプシールとを備え、前記ピスト
ンの大径部の一側に加圧液室が、前記ピストンの
大径部の他側と前記リング型カツプシールとの間
にリザーバと連通するサプライ液室がそれぞれ形
成されたマスタシリンダにおいて、前記リング型
カツプシールの内側リツプ部の先端に、少なくと
も前記サプライ液室の負圧により前記内側リツプ
部が変形された時、前記シリンダの前記大径部内
に挿入されて前記リング型カツプシールのサプラ
イ液室側への移動を止めるカツプシール係止部材
に接触して内側リツプ部の変形を抑制する環状突
出部を一体に形成するとともに、この環状突出部
を、先端の尖つた断面形状に形成してなるマスタ
シリンダ。 a cylinder body having a cylinder open at one end; a large diameter part slidably fitted within the small diameter part of the cylinder and having a cup seal attached to one side thereof for contacting the small diameter part of the cylinder; and an outside of the cylinder. a piston having a projecting small diameter portion; a piston disposed within the large diameter portion at one end of the cylinder in fixed relation to the cylinder body and contacting the cylinder large diameter portion at its outer lip portion and contacting the cylinder large diameter portion at its inner lip portion; a ring-shaped cup seal that slidably contacts the small diameter portion of the piston; a pressurized liquid chamber is provided on one side of the large diameter portion of the piston; and a pressurized liquid chamber is provided on the other side of the large diameter portion of the piston, and In a master cylinder in which a supply liquid chamber communicating with a reservoir is formed between the master cylinders, when the inner lip part is deformed by at least the negative pressure of the supply liquid chamber at the tip of the inner lip part of the ring-shaped cup seal, integrally forming an annular protrusion that is inserted into the large diameter portion of the cylinder and contacts a cup seal locking member that stops the ring-shaped cup seal from moving toward the supply liquid chamber to suppress deformation of the inner lip portion; , a master cylinder formed by forming this annular protrusion into a cross-sectional shape with a pointed tip.
JP1985033256U 1985-03-07 1985-03-07 Expired - Lifetime JPH0547733Y2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1985033256U JPH0547733Y2 (en) 1985-03-07 1985-03-07
US06/831,635 US4781024A (en) 1985-03-07 1986-02-21 Static cup seal assembly for master cylinder end
DE19863607254 DE3607254A1 (en) 1985-03-07 1986-03-05 MAIN CYLINDER
GB08605622A GB2172064B (en) 1985-03-07 1986-03-07 Seal assembly for a master cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985033256U JPH0547733Y2 (en) 1985-03-07 1985-03-07

Publications (2)

Publication Number Publication Date
JPS61148748U true JPS61148748U (en) 1986-09-13
JPH0547733Y2 JPH0547733Y2 (en) 1993-12-16

Family

ID=30535537

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985033256U Expired - Lifetime JPH0547733Y2 (en) 1985-03-07 1985-03-07

Country Status (1)

Country Link
JP (1) JPH0547733Y2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005534877A (en) * 2002-07-30 2005-11-17 コンチネンタル・テベス・アーゲー・ウント・コンパニー・オーハーゲー Seal color
WO2008054010A1 (en) * 2006-10-31 2008-05-08 Bosch Corporation Cup seal and master cylinder using the same
JP2011051461A (en) * 2009-09-01 2011-03-17 Hitachi Automotive Systems Ltd Master cylinder
KR101088327B1 (en) * 2003-08-18 2011-11-30 콘티넨탈 테베스 아게 운트 코. 오하게 Cylinder, in particular for a motor vehicle hydraulic brake system
JP2012166728A (en) * 2011-02-16 2012-09-06 Nissin Kogyo Co Ltd Vehicular hydraulic master cylinder

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59151762U (en) * 1983-03-31 1984-10-11 アイシン精機株式会社 Seal member for master cylinder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59151762U (en) * 1983-03-31 1984-10-11 アイシン精機株式会社 Seal member for master cylinder

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005534877A (en) * 2002-07-30 2005-11-17 コンチネンタル・テベス・アーゲー・ウント・コンパニー・オーハーゲー Seal color
JP4907867B2 (en) * 2002-07-30 2012-04-04 コンチネンタル・テベス・アーゲー・ウント・コンパニー・オーハーゲー Seal color
KR101088327B1 (en) * 2003-08-18 2011-11-30 콘티넨탈 테베스 아게 운트 코. 오하게 Cylinder, in particular for a motor vehicle hydraulic brake system
WO2008054010A1 (en) * 2006-10-31 2008-05-08 Bosch Corporation Cup seal and master cylinder using the same
JP2008111495A (en) * 2006-10-31 2008-05-15 Bosch Corp Cup seal and master cylinder using the same
JP2011051461A (en) * 2009-09-01 2011-03-17 Hitachi Automotive Systems Ltd Master cylinder
JP2012166728A (en) * 2011-02-16 2012-09-06 Nissin Kogyo Co Ltd Vehicular hydraulic master cylinder

Also Published As

Publication number Publication date
JPH0547733Y2 (en) 1993-12-16

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