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DE3022627C2 - U-ring or sealing collar - Google Patents

U-ring or sealing collar

Info

Publication number
DE3022627C2
DE3022627C2 DE3022627A DE3022627A DE3022627C2 DE 3022627 C2 DE3022627 C2 DE 3022627C2 DE 3022627 A DE3022627 A DE 3022627A DE 3022627 A DE3022627 A DE 3022627A DE 3022627 C2 DE3022627 C2 DE 3022627C2
Authority
DE
Germany
Prior art keywords
sealing
sealing lip
lip
ring
manufacture
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.)
Expired
Application number
DE3022627A
Other languages
German (de)
Other versions
DE3022627A1 (en
Inventor
Norbert 8603 Ebern Dreßel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FTE Automotive GmbH
Original Assignee
FAG Kugelfischer Georg Schaefer KGaA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6104793&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3022627(C2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by FAG Kugelfischer Georg Schaefer KGaA filed Critical FAG Kugelfischer Georg Schaefer KGaA
Priority to DE3022627A priority Critical patent/DE3022627C2/en
Priority to FR8110327A priority patent/FR2485145B1/en
Priority to GB8116553A priority patent/GB2078336B/en
Publication of DE3022627A1 publication Critical patent/DE3022627A1/en
Application granted granted Critical
Publication of DE3022627C2 publication Critical patent/DE3022627C2/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/22—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart, e.g. for drum brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/236—Piston sealing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
    • F16J15/3236—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips with at least one lip for each surface, e.g. U-cup packings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Braking Arrangements (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Sealing Devices (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)

Description

näher erläutert werden. Es zeigtare explained in more detail. It shows

Fig. 1 die Vorderansicht eines Radzylinders im Teilschnitt mit eingebautem Nutring gemäß der Erfindung,1 shows the front view of a wheel cylinder in partial section with a built-in groove ring according to FIG Invention,

Fig. 2 einen Nutring gemäß der Erfindung im nicht eingebauten Zustand im Teilquerschnitt,Fig. 2 is not a U-ring according to the invention installed state in partial cross-section,

F i g. 3 eine Dichtmanschette nach der Erfindung im eingebauten Zustand im Teilquerschnitt.F i g. 3 shows a sealing sleeve according to the invention in the installed state in partial cross-section.

In Fi e 1 ist das Radzylindergehäuse mit 1 bezeichnet. In der Bohrung des Radzylindergehäuses sind Kolben 2Jj angeordnet, die die Druckbolzen 3 verschieben. Aufjg dem Kolben 2 ist ein Nutring 4 befestigt, der mit seiner Dichtlippe 5 an der Zylinderbohrungswand 6 anliegt.In Fi e 1, the wheel cylinder housing is denoted by 1. Pistons 2Jj which move the pressure bolts 3 are arranged in the bore of the wheel cylinder housing. Aufjg A groove ring 4 is attached to the piston 2, the sealing lip 5 of which rests against the cylinder bore wall 6.

Wie aus Fig.2 ersichtlich, erstreckt sich aus de Grundkörper " des Nutrings 4 eine konisch verlaufend Dichtlippe 8 an der im Bereich der Dichtkante 9 ein weitere Dichtlippe 10 angeordnet ist. Diese weiter Dichtlippe 10 ist im nicht eingebauten Zustand al achsparallel verlaufende Fläche 11 ausgebildet und u einen Gelenkpunkt 12 verschwenkbar. jAs can be seen from Figure 2, extends from de Base body "of the U-ring 4 a conical shape Sealing lip 8 on which a further sealing lip 10 is arranged in the area of the sealing edge 9. This further Sealing lip 10 is formed in the non-installed state al axially parallel surface 11 and u a pivot point 12 pivotable. j

Wenn der Nutring 4 eingebaut ist, liegt somit die Dichtlippe 8 nur mit ihrer einen Kante 13 der Fläche 1S-an der Gegenfläche der Zylinderbohrungswand 6 an. | In Fig. 3 ist eine Dichtmanschette 4 im eingebauterjj Zustand dargestellt. Die ursprüngliche Form de® Dichtmanschette (nicht eingebaut) ist strichpunktier | eingezeichnet. Es ist deutlich zu sehen, daß die weiter«; Dichtlippe 10 nur mit ihrer einen Kante 13 der Fläche 1 an der Gegenfläche der Zylinderbohrungswand anliegt, während die Dichtlippe 8 die Gegenfläche nich berührt.When the U-ring 4 is installed, the sealing lip 8 only rests with its one edge 13 of the surface 1S on the opposite surface of the cylinder bore wall 6. | In Fig. 3, a sealing collar 4 is shown in the installed state. The original shape of the® sealing collar (not installed) is dash-dotted | drawn. It's plain to see that the next "; Sealing lip 10 rests only with its one edge 13 of surface 1 on the opposite surface of the cylinder bore wall, while sealing lip 8 does not touch the opposite surface.

Die Ausbildung der Dichtlippe 10 als achsparalle verlaufende Fläche 11 im nicht eingebauten Zustand haj Vorteile bei der Herstellung, weil sich so mit einfache^ Werkezugen eine exakte Dichtkante fertigen läßt. Be den herkömmlichen spitz zulaufenden Dichtlippci entstand nämlich ein Grat, der nachträglich entfern werden mußte. Durch die erfindungsgemäße Ausbi' dung ist dies nicht mehr erforderlich.The design of the sealing lip 10 as an axially parallel surface 11 in the non-installed state haj Advantages in production because an exact sealing edge can be produced with simple tools. Be the conventional tapering sealing lip created a ridge that can be removed afterwards had to become. With the training according to the invention, this is no longer necessary.

Hierzu 2 Blatt ZeichnungenFor this purpose 2 sheets of drawings

ϋϋΙΚΙϋϋΙΚΙ

Claims (1)

Patentanspruch:Claim: Nutring oder Dichtmanschette zur strömungsmitteldichten Trennung von Druckräumen insbesondere bei hydraulischen Bremsanlagen für Kraftfahrzeuge, bestehend aus einem Grundkörper und einer sich zur Dichtfläche erstreckenden Dichtlippe, wobei an der konisch verlaufenden Dichtlippe im Bereich der Dichtkante eine weitere Dichtlippe angeordnet ist, dadurch gekennzeichnet, daß die weitere Dichtlippe (10) im nicht eingebauten Zustand als achsparallel verlaufende Fläche (11) ausgebildet ist.U-ring or sealing sleeve for fluid-tight Separation of pressure chambers, particularly in the case of hydraulic brake systems for motor vehicles, consisting of a base body and a sealing lip extending towards the sealing surface, a further sealing lip on the conically extending sealing lip in the area of the sealing edge is arranged, characterized in that the further sealing lip (10) is not installed in the State is designed as an axially parallel surface (11). IOIO 1515th Die Erfindung betrifft einen Nutring oder eine Dichtmanschette nach dem Oberbegriff des Anspruchs. Aus dem DE-Gbm 79 00 776, dem Aufsatz »Dichtungen für öie Hydraulik« von Hellmut Hopp, erschienen (967 im Taschenjahrbuch »ölhydraulik und Pneumatik« des Krausskopf-Verlags Mainz, insbesondere Fig. 6a, dem DIN-Entwurf 6505, Mai 1942 und der AT-PS 1 93 207 Fig. 2, ist eine derartige Dichteinnchtung bekannt! Nachteilig dabei ist. daß das hohe Losbrechmoment der Dichteinrichtung, das durch Festsaugen der Dichtlippe an der Gegenfläche entsteht, hohe Verschiebekräfte der Zylinder bzw. Kolben erfordert und dadurch bedingt keinen ruckfreien Betrieb gewährleistet. Die Dichtlippe wird nämlich durch den hohen Druck im Kolbenraum in einem Flächenbereich zur Anlage an der Gegenfläche gebracht. Weiterhin kann bei dieser Ausführung durcn Schwingungen im System leicht Luft in die Zylinderräume eindringen. Außerdem läßt sich eine derartige, spitz ^laufende Dichtlippe nur schwer exakt herstellen und erfordert komplizierte Werkzeuge.The invention relates to a groove ring or a sealing collar according to the preamble of the claim. From DE-Gbm 79 00 776, the article "Seals for Hydraulics" by Hellmut Hopp, published (967 in the pocket yearbook "Oil hydraulics and pneumatics" of the Krausskopf-Verlag Mainz, in particular Fig. 6a, the DIN draft 6505, May 1942 and the AT-PS 1 93 207 Fig. 2, is such a sealing device known! This is disadvantageous. that the high breakaway torque of the sealing device, which is caused by the suction Sealing lip arises on the mating surface, requires high displacement forces of the cylinder or piston and this does not guarantee jerk-free operation. The sealing lip is because of the high Pressure in the piston chamber in a surface area brought into contact with the mating surface. Furthermore can In this version, vibrations in the system allow air to easily penetrate into the cylinder spaces. aside from that Such a pointed sealing lip can only be difficult to manufacture precisely and requires complicated tools. Es ist deshalb Aufgabe der Erfindung, einen Nutring oder eine Dichtmanschette der eingangs genannten Art so weiterzuverbessern, daß die axialen Verschiebekräfte bei Zylindern bzw. Kolben verringert werden, also das Losbrechmoment des Nutrings reduziert und das Eindringen von Luft vermindert und eine einfache und kostengünstige exakte Herstellung mit unkomplizierten Werkzeugen ermöglicht wird.It is therefore the object of the invention to provide a U-ring or a sealing collar of the type mentioned so further that the axial displacement forces in the case of cylinders or pistons, i.e. the breakaway torque of the U-ring is reduced and that Ingress of air is reduced and a simple and inexpensive exact manufacture with uncomplicated Tools is made possible. Die Lösung der Aufgabe ist aus dem Anspruch ersichtlich.The solution to the problem is evident from the claim. Das zusätzliche Aufbringen einer Dichtlippe (Nasenlippe) auf die bekannte Schräglippe ergibt eine kontrollierte linienartige Berührung der Dichtlippe mit der Gegenfläche. Gleichzeitig wird eine höhere LabilitätThe additional application of a sealing lip (nose lip) on the known beveled lip results in a controlled linear contact of the sealing lip with the mating surface. At the same time there is a higher level of instability 2020th 2525th 3030th 3535 4040 50 der Gesamtlippe erreicht, welche im System auftretende Schwingungen günstiger aufnehmen kann und folglich das Lufteindringen vermindert. Durch das niedrigere Losbrechmoment in Folge der linienförmigen Berührung gegenüber der flächenmäßigen Anlage, wird ein ruckfreier Betrieb gewährleistet. Die Ausbildung der weiteren Dichtlippe als im nicht eingebauten Zustand achsparallel verlaufende Fläche ermöglicht eine kostengünst;ge exakte .Herstellung, da der bei herkömmlichen Dichtiippen an der Spitze befindliche Grrt nicht mehr entfernt werden muß. Außerdem halten die Vulkanisierformen länger. .... Die Erfindung soll an einem Ausführungsbeispiel 50 of the entire lip, which can absorb vibrations occurring in the system more favorably and consequently reduces the penetration of air. Jerk-free operation is guaranteed due to the lower breakaway torque due to the linear contact compared to the areal system. The formation of the further sealing lip as a surface running axially parallel in the non-installed state enables a cost-effective ; ge exact .Manufacture, since the size on the tip of conventional sealing lips no longer has to be removed. In addition, the vulcanization molds last longer. .... The invention is based on an exemplary embodiment
DE3022627A 1980-06-18 1980-06-18 U-ring or sealing collar Expired DE3022627C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE3022627A DE3022627C2 (en) 1980-06-18 1980-06-18 U-ring or sealing collar
FR8110327A FR2485145B1 (en) 1980-06-18 1981-05-25 GROOVED RING OR SEALING SLEEVE
GB8116553A GB2078336B (en) 1980-06-18 1981-05-29 U-type ring or cup seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3022627A DE3022627C2 (en) 1980-06-18 1980-06-18 U-ring or sealing collar

Publications (2)

Publication Number Publication Date
DE3022627A1 DE3022627A1 (en) 1981-12-24
DE3022627C2 true DE3022627C2 (en) 1982-09-09

Family

ID=6104793

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3022627A Expired DE3022627C2 (en) 1980-06-18 1980-06-18 U-ring or sealing collar

Country Status (3)

Country Link
DE (1) DE3022627C2 (en)
FR (1) FR2485145B1 (en)
GB (1) GB2078336B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4415731A1 (en) * 1994-05-04 1995-11-09 Continental Ag Sealing device for double circuit brake cylinder
DE19505012A1 (en) * 1995-02-15 1996-08-22 Teves Gmbh Alfred Sealing sleeve for hydraulic systems

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4582366A (en) * 1984-11-02 1986-04-15 Burfield Peter C Lubricant seal for track linkage
EP0438285A3 (en) * 1990-01-19 1991-12-27 Butterworth Jetting Systems, Inc. Valve assembly for high pressure water shut-off gun

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB473449A (en) * 1935-11-05 1937-10-13 Mercier Jean Improvements in tight scraping packing devices for pistons, stuffing-boxes and the like
GB724341A (en) * 1952-07-31 1955-02-16 Garlock Packing Co Sealing device between relatively rotatable elements and method of making the same
US2815995A (en) * 1954-06-28 1957-12-10 Acushnet Process Company Lip type seal for sealing hydraulic and pneumatic pressure systems
AT193207B (en) * 1955-08-25 1957-11-25 Stabeg Appbau Gmbh Sealing body for piston pressurized with pressure medium
GB837814A (en) * 1955-09-24 1960-06-15 Renault Improvements in or relating to a fluid-tight packing of flexible material
US3072450A (en) * 1959-01-12 1963-01-08 Goshen Rubber Co Inc Hydraulic piston cup
FR1363879A (en) * 1962-05-11 1964-06-19 Bendix Corp Sealing cup
GB1072442A (en) * 1966-01-28 1967-06-14 Unisearch Ltd Improved piston-ring unit
GB1142265A (en) * 1967-02-14 1969-02-05 Trist Mouldings & Seals Ltd Improvements relating to sealing rings
US4166628A (en) * 1974-05-30 1979-09-04 Garlock Inc. Grease purgeable bushing seal
US4061346A (en) * 1977-01-24 1977-12-06 General Motors Corporation Cup seal for use in a master cylinder
JPS5854307B2 (en) * 1977-07-15 1983-12-03 アイシン精機株式会社 piston cup
DE7900776U1 (en) * 1978-01-13 1979-07-05 D.B.A. Bendix Lockheed Air Equipement S.A., Clichy, Hauts-De-Seine (Frankreich) Sealing device
ZA793885B (en) * 1978-08-16 1980-07-30 Lucas Industries Ltd Piston and cylinder seal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4415731A1 (en) * 1994-05-04 1995-11-09 Continental Ag Sealing device for double circuit brake cylinder
DE4415731C2 (en) * 1994-05-04 2001-08-02 Continental Ag Sealing arrangement, especially in a dual-circuit brake cylinder
DE19505012A1 (en) * 1995-02-15 1996-08-22 Teves Gmbh Alfred Sealing sleeve for hydraulic systems

Also Published As

Publication number Publication date
GB2078336A (en) 1982-01-06
GB2078336B (en) 1985-01-30
FR2485145A1 (en) 1981-12-24
DE3022627A1 (en) 1981-12-24
FR2485145B1 (en) 1987-09-25

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8181 Inventor (new situation)

Free format text: DRESSEL, NORBERT, 8603 EBERN, DE

D2 Grant after examination
8363 Opposition against the patent
8327 Change in the person/name/address of the patent owner

Owner name: FAG KUGELFISCHER GEORG SCHAEFER KGAA, 8720 SCHWEIN

8365 Fully valid after opposition proceedings
8327 Change in the person/name/address of the patent owner

Owner name: FAG KUGELFISCHER GEORG SCHAEFER AG, 97421 SCHWEINF

8327 Change in the person/name/address of the patent owner

Owner name: FAHRZEUGTECHNIK EBERN GMBH, 96106 EBERN, DE

8327 Change in the person/name/address of the patent owner

Owner name: FTE AUTOMATIVE GMBH, 96106 EBERN, DE

8310 Action for declaration of annulment
8312 Partial invalidation