DE3411233A1 - Piston for a disc brake - Google Patents

Piston for a disc brake

Info

Publication number
DE3411233A1
DE3411233A1 DE19843411233 DE3411233A DE3411233A1 DE 3411233 A1 DE3411233 A1 DE 3411233A1 DE 19843411233 DE19843411233 DE 19843411233 DE 3411233 A DE3411233 A DE 3411233A DE 3411233 A1 DE3411233 A1 DE 3411233A1
Authority
DE
Germany
Prior art keywords
piston
brake
disc brake
disc
face
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.)
Withdrawn
Application number
DE19843411233
Other languages
German (de)
Inventor
Michael 6277 Bad Camberg Schorn
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.)
Continental Teves AG and Co oHG
Original Assignee
Alfred Teves GmbH
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 by Alfred Teves GmbH filed Critical Alfred Teves GmbH
Priority to DE19843411233 priority Critical patent/DE3411233A1/en
Publication of DE3411233A1 publication Critical patent/DE3411233A1/en
Withdrawn legal-status Critical Current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
    • F16D65/0006—Noise or vibration control
    • 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
    • F16D2125/00—Components of actuators
    • F16D2125/02—Fluid-pressure mechanisms
    • F16D2125/06—Pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

According to the invention, that end face of a piston for a disc brake of motor vehicles which rests against the brake shoe has a multiplicity of raised portions. During the braking operation, these raised portions dig into the backplate for the brake-shoe lining due to the application force and thus prevent braking noise at the brake- shoe.

Description

Kolben für eine ScheibenbremsePiston for a disc brake

Die Erfindung betrifft eine Scheibenbremse ftir Kraftfahræeuge, mit einem Kolben, der bei Betätigung mit einer Stlrllfläche gegen eine Stirnfläche einer Bremsbacke dri.ckt, um diese in Reibeingriff mit einer rotierenden Bremsscheibe zu bringen.The invention relates to a disc brake for motor vehicles, with a piston, which when actuated with a control surface against an end face of a Brake shoe presses to bring it into frictional engagement with a rotating brake disc bring to.

Scheibenbremsen dieser Art sind bereits seit langem bekannt. Alle diese Scheibenbremsen haben den Nachteil, daß sie beim Bremsvorgang leicht zu Quietschgeräuschen neigen. Diese Quietschgeräusche werde durch den Reibeingriff der Bremsbacke mit der Bremsscheibe erzeugt, insbesondere dann, wenn die Bremsbacke nicht ganz spielfrei im Bremssattel gelagert und dabei wenn nur geringe Rremskräfte auf die Bremsbacken einwirken. Um diese Quietschgeräusche zu verhindern, wurden bereits zahlreiche Vorschläge gemacht 7 wie z.B. das Einlegen von Antiphonkörpern zwischen dem Kolben und der Bremsbacke oder eine spezielle Ausgestaltung der Bremsscheibe.Disc brakes of this type have been known for a long time. All these disc brakes have the disadvantage that they easily make squeaking noises when braking tend. These squeaking noises are caused by the frictional engagement of the brake shoe generated by the brake disc, especially when the brake shoe is not completely free of play stored in the brake caliper and when only low braking forces on the brake shoes act. In order to prevent these squeaking noises, numerous proposals have been made made 7 such as the insertion of antiphon bodies between the piston and the Brake shoe or a special design of the brake disc.

Derartige Ausführungen sind aber aufwendig und teuer.Such designs are complex and expensive.

Aufgabe der Erfindung ist es daher, mit einfachen konstruktiven Mitteln die Bressgeräusche einer Scheibenbremse zu verringern.The object of the invention is therefore to use simple structural means to reduce the braking noise of a disc brake.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Stirnfläche des Kolbens zahlreiche Erhebungen aufweist, die sich in die Stirnfläche der Bremsbacke eingraben. Mit dieser erfindungsgemäßen Maßnahme wird erreicht daß durch die bei Kraftbeaufschlagung des Kolbens sich in die Oberfläche der Bremsbacke eirlgrabenden Erhebungen eine annähernd formschlüssige Verbindung zwischen Kolben und Bremsbacke entsteht, wodurch Bremsgeräusche vermieden werden, da die Verbindung zwischen Kolben und Bremsbacke eine dämpfende Eigenschaft besitzt und Schwingungen, die an der Bremsbacke infolge des Reibeingriffs entstehen, unterdrückt.This object is achieved according to the invention in that the end face of the piston has numerous bumps that extend into the face of the brake shoe dig in. With this measure according to the invention it is achieved that by the Force application of the piston itself in the surface of the brake shoe egg digging Elevations create an almost form-fitting connection between the piston and the brake shoe arises, whereby braking noise can be avoided, as the connection between pistons and brake shoe has a damping property and vibrations that affect the brake shoe arise as a result of the frictional engagement, suppressed.

Die Erhebungen graben sich besonders gut in die metallische Rückenplatte der Bremsbacke ein, wenn sie gehärtet sind. Ein derartiges Verfahren bietet sich immer dann an, wenn der Kolben aus Metall hergestellt ist und die Belagru.ckenplatte aus einer verhältnismäßig weichen Stahlqualität besteht.The bumps dig particularly well into the metallic back plate the brake shoe when they are hardened. Such a method is available always on when the piston is made of metal and the lining back plate consists of a relatively soft steel quality.

Eine besonders einfache Herstellung der Erhebungen wird dadurch erreicht, daß die Erhebungen durch Rändeln hergestellt sind. Durch dieses Herstellungsverfahren können auf besonders engem Raum viele Erhebungen llergestellt werde, so daß eine besonders gleichmäßige, annähenid formschlüssige Verbindung zwischen Kolben und Belagrückenplatte entsteht. Derartige Erhebungen können aber auch durch Erodieren oder sonstige, in der metallverarbeitenden Industrie bekannte Herstellverfahren hergestellt werden.A particularly simple production of the elevations is achieved by that the elevations are made by knurling. Through this manufacturing process many surveys can be made in a particularly narrow space so that one Particularly uniform, sewn-in, form-fitting connection between the piston and Pad backing plate is created. Such elevations can also be eroded or other manufacturing processes known in the metalworking industry getting produced.

Claims (4)

PatentansprViche 1. Scheibenbremse fr Kraftfahrzeuge, mit einem Kolben, der bei Betätigung mit einer Stirnflache gegen eine Stirnfläche einer Bremsbacke drückt) um diese in Reibeingriff mit einer rotierenden Bremsscheibe zu hringen, dadurch g e k e n n z e i c h n e t, daß die Stirnfläche des Kolbens zahlreiche Erhebungen aufweist, die sich in die Stirnfläche einer Bremsbacke eingraben.Claims 1. Disc brake for motor vehicles, with one piston, when actuated with an end face against an end face of a brake shoe presses) to bring them into frictional engagement with a rotating brake disc, in that the end face of the piston is numerous Has elevations that dig into the face of a brake shoe. 2. Scheibenbremse nach Anspruch 1, dadurch g e k e n n z e i c h n e t, daß die Erhebungen am Kolben gehärtet sind.2. Disc brake according to claim 1, characterized in that g e k e n n z e i c h n e t that the elevations on the piston are hardened. 3. Scheibenbremse nach Anspruch 1 und/oder 2, dadurch g e k e n n z e i c h n e t, daß die Erhebungen am Kolben durch Wandeln hergestellt sind.3. Disc brake according to claim 1 and / or 2, characterized g e k e n n shows that the elevations on the piston are made by converting. 4. Scheibenbremse nach Anspruch 1 und/oder 2, dadurch g e k e n n z e i c h n e t, daß die Erhebungen am Kolben durch Erodieren hergestellt sind.4. Disc brake according to claim 1 and / or 2, characterized in that g e k e n n z e i c h n e t that the elevations on the piston are produced by erosion.
DE19843411233 1984-03-27 1984-03-27 Piston for a disc brake Withdrawn DE3411233A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19843411233 DE3411233A1 (en) 1984-03-27 1984-03-27 Piston for a disc brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843411233 DE3411233A1 (en) 1984-03-27 1984-03-27 Piston for a disc brake

Publications (1)

Publication Number Publication Date
DE3411233A1 true DE3411233A1 (en) 1985-10-10

Family

ID=6231745

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843411233 Withdrawn DE3411233A1 (en) 1984-03-27 1984-03-27 Piston for a disc brake

Country Status (1)

Country Link
DE (1) DE3411233A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4886147A (en) * 1987-12-19 1989-12-12 Dr. Ing. H.C.F. Porsche Ag Brake arrangement
DE102009058604A1 (en) * 2009-12-17 2011-07-07 WABCO Radbremsen GmbH, 68229 Disc brake, in particular for commercial vehicles, brake caliper of such a brake and method for producing such a brake caliper

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211875B (en) * 1963-12-19 1966-03-03 Teves Kg Alfred Hydraulically operated partially lined disc brake
DE7715621U1 (en) * 1977-05-17 1978-08-10 Textar Gmbh, 5090 Leverkusen DISC BRAKE, IN PARTICULAR PARTICULAR DISC BRAKE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211875B (en) * 1963-12-19 1966-03-03 Teves Kg Alfred Hydraulically operated partially lined disc brake
DE7715621U1 (en) * 1977-05-17 1978-08-10 Textar Gmbh, 5090 Leverkusen DISC BRAKE, IN PARTICULAR PARTICULAR DISC BRAKE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4886147A (en) * 1987-12-19 1989-12-12 Dr. Ing. H.C.F. Porsche Ag Brake arrangement
DE102009058604A1 (en) * 2009-12-17 2011-07-07 WABCO Radbremsen GmbH, 68229 Disc brake, in particular for commercial vehicles, brake caliper of such a brake and method for producing such a brake caliper

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee
R079 Amendment of ipc main class

Free format text: PREVIOUS MAIN CLASS: F16D0065200000

Ipc: F16D0065180000

Effective date: 20111209