DE3022627A1 - NUTRING OR SEAL - Google Patents

NUTRING OR SEAL

Info

Publication number
DE3022627A1
DE3022627A1 DE19803022627 DE3022627A DE3022627A1 DE 3022627 A1 DE3022627 A1 DE 3022627A1 DE 19803022627 DE19803022627 DE 19803022627 DE 3022627 A DE3022627 A DE 3022627A DE 3022627 A1 DE3022627 A1 DE 3022627A1
Authority
DE
Germany
Prior art keywords
sealing
sealing lip
lip
edge
installed state
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
DE19803022627
Other languages
German (de)
Other versions
DE3022627C2 (en
Inventor
Norbert 8603 Erbern 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
Kugelfischer Georg Schaefer and Co
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=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3022627(A1) "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, Kugelfischer Georg Schaefer and Co 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)
  • Sealing With Elastic Sealing Lips (AREA)
  • Braking Arrangements (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Sealing Devices (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)

Description

Die Erfindung betrifft einen Nutring oder eine Dichtmanschette zur strömungsmitteldichten Trennung von Druckräumen, insbesondere bei hydraulischen Bremsanlagen für Kraftfahrzeuge, bestehend aus einem Grundkörper und einer sich zuruDichtflache erstreckenden Dichtlippe.The invention relates to a groove ring or a sealing collar for the fluid-tight separation of pressure spaces, in particular in hydraulic brake systems for motor vehicles, consisting of a base body and a back sealing surface extending sealing lip.

Aus dem DE-Gm 79 00 776 ist eine derartige Dichteinrichtung 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 Bettieb 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 durch Schwingungen im System leicht Luft in die Zylinderräume eindringen.Such a sealing device is known from DE-Gm 79 00 776. The disadvantage here is that the high breakaway torque the sealing device, which is created by sucking the sealing lip firmly on the mating surface, has high displacement forces Requires cylinder or piston and therefore does not guarantee a smooth operation. The sealing lip is namely brought into contact with the mating surface in a surface area due to the high pressure in the piston chamber. Farther With this version, air can easily penetrate into the cylinder chambers due to vibrations in the system.

Es ist deshalb Aufgabe der Erfindung, einen Nutring oder eine Dichtmanschette der eingangs genannten Art soweiterzu verbessern, daß die axialen Verschiebekräfte bei Zylindern bzw. Kolben verringert werden, also das Losbrechmoment des Nutrings reduziert und das Eindringen von Luft vermindert wird.It is therefore the object of the invention to provide a groove ring or a sealing collar of the type mentioned at the outset improve that the axial displacement forces in cylinders or pistons are reduced, so the breakaway torque the groove ring and the ingress of air is reduced.

Die Lösung der Aufgabe ist aus den Ansprüchen ersichtlich.The solution to the problem is evident from the claims.

Das zusätzliche Aufbringen einer Dichtlippe (Nasenlippe) auf die bekannte Schräglippe ergibt eine kontrollierte linienartige Berührung der Dichtlippe mit der Gegenfläche. Gleichzeitig wird eine höhere Labilität der Gesamtlippe erreicht,The additional application of a sealing lip (nose lip) to the well-known bevel lip results in a controlled line-like lip Contact of the sealing lip with the mating surface. At the same time, a greater lability of the entire lip is achieved,

130052/0299130052/0299

welche im System auftretende Schwingungen günstiger aufnehmen kann und folglich das Lufteindringen vermindert. Durch das niedrigere Losbrechmoment in Folge der linsenförmigen Berührung gegenüber der flächenmäßigen Anlage, wird ein ruckfreier Betrieb gewährleistet.which can absorb vibrations occurring in the system more cheaply and consequently reduces air penetration. By the lower breakaway torque as a result of the lens-shaped contact compared to the areal contact, becomes a Jerk-free operation guaranteed.

Die Erfindung soll an einem Ausführungsbeispiel näher erläutert werden. .,^The invention is to be explained in more detail using an exemplary embodiment. ., ^

Es zeigt:It shows:

Fig. 1 die Vorderansicht eines Radzylinders im Teilschnitt mit eingebautem Nutring gemäß der ErfindungFig. 1 is a front view of a wheel cylinder in partial section with built-in groove ring according to the invention

Fig. 2 einen Nutring gemäß der Erfindung im nicht eingebauten Zustand im TeilquerschnittFig. 2 shows a groove ring according to the invention in the non-installed state in partial cross-section

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

In Fig. 1 ist das Radzylindergehäuse mit 1 bezeichnet. In der Bohrung des Radzylindergehäuses sind Kolben 2 angeordnet, die die Druckbolzen 3 verschieben. Auf dem Kolben 2 ist ein Nutring 4 befestigt, der mit seiner Dichtlippe 5 an der Zylinderbohrungswand 6 anliegt.The wheel cylinder housing is denoted by 1 in FIG. 1. Pistons 2 are arranged in the bore of the wheel cylinder housing, which move the pressure pins 3. On the piston 2, a groove ring 4 is attached, which with its sealing lip 5 on the Cylinder bore wall 6 rests.

Wie aus Fig. 2 ersichtlich, erstreckt sich aus dem Grundkörper 7 des Nutrings 4 eine konisch verlaufende Dichtlippe 8 an der im Bereich der Dichtkante 9 eine weitere Dichtlippe 10 angeordnet ist. Diese weitere Dichtlippe 10 ist im nicht eingebauten Zustand als achsparallel verlaufende Fläche 11 ausgebildet und um einen Gelenkpunkt 12 verschwenkbar.As can be seen from FIG. 2, a conically extending sealing lip 8 extends from the base body 7 of the U-ring 4 on which a further sealing lip 10 is arranged in the area of the sealing edge 9. This further sealing lip 10 is not installed in the State formed as a surface 11 running parallel to the axis and pivotable about an articulation point 12.

130052/0299130052/0299

Wenn der Nutring 4 eingebaut ist, liegt somit die Dichtlippe 8 nur mit ihrer einen Kante 13 der Fläche 11 an der Gegenfläche der Zylinderbohrungswand 6 an.When the groove ring 4 is installed, the sealing lip 8 is only one edge 13 of the surface 11 on the Opposite surface of the cylinder bore wall 6.

In Fig. 3 ist eine Dichtmanschette 4 im eingebauten Zustand dargestellt. Die ursprüngliche Form der Dichtmanschette (nicht eingebaut) ist strichpunktiert eingezeichnet. Es ist deutlich zu sehen, daß die weitere Dichtlippe 10 nur mit ihrer einen Kante 13 der Fläche 11 an der Gegenfläche der Zylinderbohrungswand 6 anliegt, während die Dichtlippe die Gegenfläche nicht berührt.In Fig. 3, a sealing collar 4 is shown in the installed state. The original shape of the sealing sleeve (not installed) is shown in dash-dotted lines. It can be clearly seen that the further sealing lip 10 only with one edge 13 of the surface 11 rests against the opposite surface of the cylinder bore wall 6, while the sealing lip does not touch the mating surface.

Die Ausbildung der Dichtlippe 10 als achsparallel verlaufende Fläche 11 im nicht eingebauten Zustand hat Vorteile bei der Herstellung, weil sich so mit einfachen Werkzeugen eine exakte Dichtkante fertigen läßt. Es sind jedoch auch andere Formen der Dichtlippe 10 verwendbar.The formation of the sealing lip 10 as an axially parallel surface 11 in the non-installed state has advantages in the production, because an exact sealing edge can be produced with simple tools. However, there are others too Shapes of the sealing lip 10 can be used.

130052/0299130052/0299

L eerseiteL eerseite

Claims (3)

FAG KUGELFISCHER GEORG SCHÄFER & CO. R-RS-1-ad-gu-6 Schweinfurt 11. junl iggoFAG PUFFER GEORG SCHAEFER & CO. R-RS-1-ad-gu-6 Schweinfurt 11. j un liggo SchutzansprücheProtection claims 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, dadurch gekennzeichnet, daß an der^konisch verlaufenden Dichtlippe (8) im Bereich der Dichtkante (9) eine weitere Dichtlippe (10) angeordnet ist.Grooved ring or sealing collar for fluid-tight separation of pressure chambers, especially in hydraulic brake systems for motor vehicles, consisting of a base body and a sealing lip extending to the sealing surface, characterized in that a further sealing lip is provided on the conical sealing lip (8) in the area of the sealing edge (9) (10) is arranged. 2. Nutring oder Dichtmanschette nach Anspruch 1f dadurch gekennzeichnet, daß die weitere Dichtlippe (10) im nicht eingebauten Zustand als achsparallel verlaufende Fläche (11) ausgebildet ist.2. Grooved ring or sealing sleeve according to claim 1 f, characterized in that the further sealing lip (10) in the non-installed state is designed as an axially parallel surface (11). 3. Nutring oder Dichtmanschette nach Anspruch 2, dadurch gekennzeichnet, daß die weitere Dichtlippe (10) um einen Gelenkpunkt (12) verschwenkbar ausgebildet ist und im eingebauten Zustand mit ihrer einen Kante (13) der Fläche (11) an der Gegenfläche (6) anliegt.3. U-ring or sealing collar according to claim 2, characterized in that the further sealing lip (10) is designed to be pivotable about a hinge point (12) and, in the installed state, with its one edge (13) of the surface (11) on the mating surface (6) is present. 130052/0299130052/0299
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 true DE3022627A1 (en) 1981-12-24
DE3022627C2 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)

Families Citing this family (4)

* 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
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT193207B (en) * 1955-08-25 1957-11-25 Stabeg Appbau Gmbh Sealing body for piston pressurized with pressure medium
DE7900776U1 (en) * 1978-01-13 1979-07-05 D.B.A. Bendix Lockheed Air Equipement S.A., Clichy, Hauts-De-Seine (Frankreich) Sealing device

Family Cites Families (12)

* 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
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
ZA793885B (en) * 1978-08-16 1980-07-30 Lucas Industries Ltd Piston and cylinder seal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT193207B (en) * 1955-08-25 1957-11-25 Stabeg Appbau Gmbh Sealing body for piston pressurized with pressure medium
DE7900776U1 (en) * 1978-01-13 1979-07-05 D.B.A. Bendix Lockheed Air Equipement S.A., Clichy, Hauts-De-Seine (Frankreich) Sealing device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DIN E 6505, Mai 1942 *
Firmenschrift Merkel, Dichtungen für die Hydraulik, Seite 17 (Aufsatz in "Ölhydraulik und Pneumatik" - Taschenjahrbuch 1967) *

Also Published As

Publication number Publication date
FR2485145B1 (en) 1987-09-25
GB2078336B (en) 1985-01-30
GB2078336A (en) 1982-01-06
DE3022627C2 (en) 1982-09-09
FR2485145A1 (en) 1981-12-24

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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