DE102008027457A1 - Drum brake for vehicle, has brake jaw, brake drum, and brake cylinder that is provided with pressure connector and bleed connector, where end section of brake cylinder is provided for receiving piston impinged in housing of brake cylinder - Google Patents
Drum brake for vehicle, has brake jaw, brake drum, and brake cylinder that is provided with pressure connector and bleed connector, where end section of brake cylinder is provided for receiving piston impinged in housing of brake cylinder Download PDFInfo
- Publication number
- DE102008027457A1 DE102008027457A1 DE102008027457A DE102008027457A DE102008027457A1 DE 102008027457 A1 DE102008027457 A1 DE 102008027457A1 DE 102008027457 A DE102008027457 A DE 102008027457A DE 102008027457 A DE102008027457 A DE 102008027457A DE 102008027457 A1 DE102008027457 A1 DE 102008027457A1
- Authority
- DE
- Germany
- Prior art keywords
- brake
- drum
- wheel cylinder
- pressure
- piston
- 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- Withdrawn
Links
- 238000007789 sealing Methods 0.000 claims description 20
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000013022 venting Methods 0.000 claims 3
- 238000000465 moulding Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009760 functional impairment Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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
-
- 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
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
-
- 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
- F16D2125/16—Devices for bleeding or filling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Die Erfindung betrifft eine Trommelbremse für Fahrzeuge nach dem Oberbegriff des Patentanspruchs 1.The The invention relates to a drum brake for vehicles the preamble of claim 1.
Aus
der
Bei der gewählten Konstruktion ist nicht auszuschließen, dass Schmutz und Bremsstaub in den Radzylinder gelangt, da die Stellen, an denen die beiden Kolben aus dem Gehäuse des Radzylinders hervorstehen, nicht geschützt sind. Mit dem Eintrag von Schmutz und Bremsstaub in den Radzylinder über den zwischen den Kolben und dem Gehäuse bestehenden Ringspalt ist ein vorzeitiger Funktionsbeeinträchtigung des Radzylinders nicht ausgeschlossen.at the chosen construction can not be excluded, that dirt and brake dust get into the wheel cylinder, because the places, where the two pistons from the housing of the wheel cylinder stand out, are not protected. With the entry of dirt and brake dust in the wheel cylinder over the between the Piston and the housing existing annular gap is premature Functional impairment of the wheel cylinder is not excluded.
Daher ist es die Aufgabe der vorliegenden Erfindung, eine Trommelbremse der angegebenen Art mit möglichst einfachen, funktionsgerechten Mitteln kostengünstig und klein bauend auszuführen und derart zu verbessern, dass die vorgenannten Nachteile nicht auftreten.Therefore It is the object of the present invention, a drum brake the specified type with simple, functional To carry out low cost and small construction funds and to improve so that the aforementioned disadvantages do not occur.
Diese Aufgabe wird erfindungsgemäß für die Trommelbremse der angegebenen Art durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst.These Task is according to the invention for the drum brake the specified type by the characterizing features of the claim 1 solved.
Weitere Merkmale und Vorteile der Erfindung gehen im Nachfolgenden aus der Beschreibung von mehreren Zeichnungen hervor.Further Features and advantages of the invention will become apparent from the Description of several drawings.
Es zeigen:It demonstrate:
Die
Die
Erfindungsgemäß ist
für jeden Kolben
Die
Die
Die
Die
Die
- 11
- Dichtungpoetry
- 22
- Gehäusecasing
- 33
- Ringnutring groove
- 44
- Druckanschlusspressure connection
- 55
- Endabschnittend
- 66
- Radzylinderwheel cylinder
- 77
- Dichtlippesealing lip
- 88th
- Dichtlippesealing lip
- 99
- Kolbenpiston
- 1010
- Ausnehmungrecess
- 1111
- Kegelstumpftruncated cone
- 1212
- Ballenabschnittball section
- 1313
- Entlüftungsanschlussexhaust port
- 1414
- Entlüftungsventilvent valve
- 1515
- Schutzkappeprotective cap
- 1616
- Innenrandinner edge
- 1717
- Außenrandouter edge
- 1818
- Kappenabschnittcap section
- 1919
- Hinterschneidungundercut
- 2020
- Bremsbackebrake shoe
- 2121
- Hinterschneidungundercut
- 2222
- Abstützungsupport
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102006009088 A1 [0002] - DE 102006009088 A1 [0002]
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008027457A DE102008027457A1 (en) | 2007-11-21 | 2008-06-09 | Drum brake for vehicle, has brake jaw, brake drum, and brake cylinder that is provided with pressure connector and bleed connector, where end section of brake cylinder is provided for receiving piston impinged in housing of brake cylinder |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007056190.5 | 2007-11-21 | ||
DE102007056190 | 2007-11-21 | ||
DE102008027457A DE102008027457A1 (en) | 2007-11-21 | 2008-06-09 | Drum brake for vehicle, has brake jaw, brake drum, and brake cylinder that is provided with pressure connector and bleed connector, where end section of brake cylinder is provided for receiving piston impinged in housing of brake cylinder |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008027457A1 true DE102008027457A1 (en) | 2009-05-28 |
Family
ID=40577215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008027457A Withdrawn DE102008027457A1 (en) | 2007-11-21 | 2008-06-09 | Drum brake for vehicle, has brake jaw, brake drum, and brake cylinder that is provided with pressure connector and bleed connector, where end section of brake cylinder is provided for receiving piston impinged in housing of brake cylinder |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008027457A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006009088A1 (en) | 2006-02-28 | 2007-08-30 | Robert Bosch Gmbh | Vehicle drum brake with integrated parking brake, has hydraulic cylinder with pistons for normal braking, and electromechanical expander unit between them, used for parking and emergencies |
-
2008
- 2008-06-09 DE DE102008027457A patent/DE102008027457A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006009088A1 (en) | 2006-02-28 | 2007-08-30 | Robert Bosch Gmbh | Vehicle drum brake with integrated parking brake, has hydraulic cylinder with pistons for normal braking, and electromechanical expander unit between them, used for parking and emergencies |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
R079 | Amendment of ipc main class |
Free format text: PREVIOUS MAIN CLASS: F16D0065240000 Ipc: F16D0065220000 Effective date: 20111209 |
|
R005 | Application deemed withdrawn due to failure to request examination |