DE102012210188A1 - Slave cylinder for clutch bearing for operating clutch in motor vehicle, has holding elements provided inside the housing, which are arranged on piston rod such that the piston rod is maintained in axially non-relocatable state - Google Patents
Slave cylinder for clutch bearing for operating clutch in motor vehicle, has holding elements provided inside the housing, which are arranged on piston rod such that the piston rod is maintained in axially non-relocatable state Download PDFInfo
- Publication number
- DE102012210188A1 DE102012210188A1 DE102012210188A DE102012210188A DE102012210188A1 DE 102012210188 A1 DE102012210188 A1 DE 102012210188A1 DE 102012210188 A DE102012210188 A DE 102012210188A DE 102012210188 A DE102012210188 A DE 102012210188A DE 102012210188 A1 DE102012210188 A1 DE 102012210188A1
- Authority
- DE
- Germany
- Prior art keywords
- piston rod
- slave cylinder
- piston
- retaining ring
- housing
- 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- Withdrawn
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Classifications
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- 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
- F16D25/00—Fluid-actuated clutches
- F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
- F16D25/088—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members being distinctly separate from the axis of rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
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- 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
- F16D25/00—Fluid-actuated clutches
- F16D25/12—Details not specific to one of the before-mentioned types
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Actuator (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Haltevorrichtung für eine Kolbenstange eines Nehmerzylinders gemäß Oberbegriff des Anspruchs 1.The invention relates to a holding device for a piston rod of a slave cylinder according to the preamble of
Nehmerzylinder, insbesondere für Kupplungsausrückvorrichtungen als Betätigung einer Kupplung in einem Kraftfahrzeug, sind im Stand der Technik in unterschiedlichen Ausführungsformen bekannt. Insbesondere bei Nehmerzylindern für sogenannte semihydraulische Kupplungsausrücksysteme ergibt sich die Problematik, die Kolbenstange in einer Montageposition zu arretieren, da der Kolben des Nehmerzylinder mit einer Vorspannung vorbelastet ist und ohne eine Gegenkraft bzw. Haltervorrichtung von der Vorspannkraft immer maximal herausgeschoben wird, auf die so genannte Max Extension. Bei der Montage müsste dann die Kolbenstange zunächst gegen die Vorspannkraft des Kolbens, die in einer Größenordnung von ca. 100N liegt, in den Zylinder geschoben werden, um die Kolbenstange der Kolbenstangenaufnahme am Aktuator für die Kupplungsausrückvorrichtung zu befestigen. Dies verursacht einen erhöhten Montageaufwand und verstärkt die Belastung auf die Mitarbeiter, die die Montage durchführen. Slave cylinder, in particular for clutch release devices as actuation of a clutch in a motor vehicle, are known in the prior art in different embodiments. In particular, in slave cylinders for so-called semi-hydraulic clutch release systems, the problem arises to lock the piston rod in a mounting position, since the piston of the slave cylinder is biased with a bias and is pushed out of the biasing force always a maximum counterforce or holder device, the so-called Max extension. During assembly, the piston rod would then first be pushed against the biasing force of the piston, which is on the order of about 100N, into the cylinder to secure the piston rod of the piston rod receptacle on the actuator for the clutch release device. This causes an increased installation effort and increases the burden on the employees who perform the assembly.
Es sind daher Haltevorrichtungen für die Kolbenstange eines Nehmerzylinders entwickelt worden, mit deren Hilfe die Kolbenstange gegen die Vorspannkraft in einer Montageposition gehalten werden kann, solange das Kupplungsausrücksystem nicht unter Druck steht. Dazu wird beispielsweise eine Haltevorrichtung genutzt, die das Kolbenstangenende mit einer Kappe umfasst, wobei sich von der Kappe zwei Arme zum Nehmerzylindergehäuse hin erstrecken. An ihrem Ende weisen die Arme Abschnitte zum Einklipsen am Nehmerzylinder auf, die in komplementäre Einklipselemente am Nehmerzylindergehäuse eingeklipst werden können. Die Arme weisen dabei Sollbruchstellen auf, beispielsweise im Klipsbereich, die dazu ausgebildet sind, bei einer ersten Betätigung des Ausrücksystems, bei der Kräfte im Nehmerzylinder auftreten, die um Größenordnungen über der Vorspannkraft liegen, zu brechen und so die Kolbenstange frei zu geben. There are therefore developed holding devices for the piston rod of a slave cylinder, with the aid of which the piston rod can be held against the biasing force in a mounting position as long as the clutch release system is not under pressure. For this purpose, for example, a holding device is used which comprises the piston rod end with a cap, wherein extending from the cap two arms to the slave cylinder housing. At their end, the arms have sections for clipping on the slave cylinder, which can be clipped into complementary Einklipselemente the slave cylinder housing. The arms have predetermined breaking points, for example in Klipsbereich, which are adapted to break at a first actuation of the release system, occur in the forces in the slave cylinder, which are orders of magnitude above the biasing force, and so to release the piston rod.
Nachteilig an dieser Lösung ist, dass die Bruchstücke der Haltevorrichtung im System verbleiben, und dort Probleme verursachen können. A disadvantage of this solution is that the fragments of the holding device remain in the system, and can cause problems there.
Es besteht daher die Aufgabe, eine Haltevorrichtung für die Kolbenstange eines Nehmerzylinders zur Verfügung zu stellen, die kostengünstig und einfach in der Anwendung ist, aber ohne frei im System verbleibende Komponenten auskommt. It is therefore an object to provide a holding device for the piston rod of a slave cylinder, which is inexpensive and easy to use, but does not require any components remaining free in the system.
Die Lösung dieser Aufgabe gelingt mit dem Nehmerzylinder gemäß Anspruch 1. Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen. The solution to this problem is achieved with the slave cylinder according to
Ein Nehmerzylinder gemäß der vorliegenden Erfindung weist ein Gehäuse auf, in dem axial verschieblich ein Kolben gelagert ist, an den eine Kolbenstange angreift, und bei dem im Inneren des Gehäuses ein erstes Halteelement angeordnet ist, und an der Kolbenstange komplementäre weitere Halteelemente ausgebildet sind, die die Kolbenstange in einem Montagezustand des Nehmerzylinders axial unverschieblich halten und die Kolbenstange bei einer ersten Betätigung des Nehmerzylinders axial frei geben. A slave cylinder according to the present invention comprises a housing in which axially displaceably a piston is mounted, to which a piston rod engages, and in which a first holding element is arranged in the interior of the housing, and on the piston rod complementary further holding elements are formed, which hold the piston rod axially immovable in an assembled state of the slave cylinder and axially free the piston rod at a first actuation of the slave cylinder.
Vorzugsweise ist die Kolbenstange dabei mittels einer Feder in axialer Richtung vorgespannt, wobei die Halteelemente die Kolbenstange gegen die Vorspannungskraft axial unverschieblich halten. Preferably, the piston rod is biased by a spring in the axial direction, wherein the holding elements hold the piston rod against the biasing force axially immovable.
In einer weiteren Ausführungsform der Erfindung besteht das Halteelement aus einem Haltering, der im Gehäuse in axialer Richtung an einem Anschlag für die Kolbenstange anliegt, wobei die weiteren Halteelemente an der Kolbenstange durch Vorsprünge gebildet werden, die zum formschlüssigen Eingreifen mit dem Haltering ausgebildet sind. In a further embodiment of the invention, the holding element consists of a retaining ring, which rests in the housing in the axial direction on a stop for the piston rod, wherein the further holding elements are formed on the piston rod by projections which are designed for positive engagement with the retaining ring.
Dabei können die Halteelemente am Haltering als nach innen gerichtete Federelemente ausgebildet sein, die in Eingriff mit den weiteren Halteelementen an der Kolbenstange gebracht werden können. In this case, the holding elements may be formed on the retaining ring as inwardly directed spring elements which can be brought into engagement with the further holding elements on the piston rod.
Dadurch ergibt sich die vorteilhafte Möglichkeit, den Haltering so auszubilden, dass er beim Ausfahren des Nehmerzylinderkolbens bis zur Max Extension am kolbenseitigen Ende der Kolbenstange verklemmt wird, so dass eine sichere Lagerung des nicht mehr benötigten Halterings gewährleistet ist. Dabei kann die Kolbenstange am kolbenseitigen Ende Vorsprünge aufweisen, hinter die die Federelemente einklipsen, so dass eine sichere Lagerung des Halterings am kolbenseitigen Kolbenstangenende gewährleistet ist. This results in the advantageous possibility of the retaining ring in such a way that it is jammed on extension of the slave cylinder piston to the maximum extension on the piston side end of the piston rod, so that a secure mounting of the retaining ring is no longer required. In this case, the piston rod may have projections on the piston end, behind which the spring elements clasp, so that a secure mounting of the retaining ring on the piston-side piston rod end is ensured.
Weitere Vorteile, Merkmale, Merkmalskombinationen und Eigenschaften der Erfindung werden deutlich anhand der Beschreibung eines bevorzugten Ausführungsbeispiels und den Zeichnungen. Further advantages, features, feature combinations and features of the invention will become apparent from the description of a preferred embodiment and the drawings.
Diese zeigen in: These show in:
Im Zylinderinneren befindet sich ein Haltering
In
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Nehmerzylinder slave cylinder
- 22
- Nehmerzylindergehäuse Slave cylinder housing
- 33
- Kolben piston
- 44
- Kolbenstange piston rod
- 55
- Halteklammer retaining clip
- 66
- Haltering retaining ring
- 77
- Elemente elements
- 88th
- Faltenbalg bellow
- 99
- Abschlussbauteil final part
- 1010
- Vorsprünge projections
- 1111
- Federelemente spring elements
- 1212
- Ringbauteil ring member
- 1313
- Feder feather
- 1414
- Druckraum pressure chamber
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012210188A DE102012210188A1 (en) | 2011-06-29 | 2012-06-18 | Slave cylinder for clutch bearing for operating clutch in motor vehicle, has holding elements provided inside the housing, which are arranged on piston rod such that the piston rod is maintained in axially non-relocatable state |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011107385.3 | 2011-06-29 | ||
DE102011107385 | 2011-06-29 | ||
DE102012210188A DE102012210188A1 (en) | 2011-06-29 | 2012-06-18 | Slave cylinder for clutch bearing for operating clutch in motor vehicle, has holding elements provided inside the housing, which are arranged on piston rod such that the piston rod is maintained in axially non-relocatable state |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102012210188A1 true DE102012210188A1 (en) | 2013-01-03 |
Family
ID=47355335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102012210188A Withdrawn DE102012210188A1 (en) | 2011-06-29 | 2012-06-18 | Slave cylinder for clutch bearing for operating clutch in motor vehicle, has holding elements provided inside the housing, which are arranged on piston rod such that the piston rod is maintained in axially non-relocatable state |
Country Status (1)
Country | Link |
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DE (1) | DE102012210188A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013101083A1 (en) * | 2013-02-04 | 2014-08-07 | Yakita Metal Industry Co., Ltd. | Auxiliary tool for mounting shock absorber for reducing oscillation in e.g. motor car, has rotary element comprising screw hole with internal thread that is precisely fitted to inner pipe body and rotatably arranged at end section |
-
2012
- 2012-06-18 DE DE102012210188A patent/DE102012210188A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013101083A1 (en) * | 2013-02-04 | 2014-08-07 | Yakita Metal Industry Co., Ltd. | Auxiliary tool for mounting shock absorber for reducing oscillation in e.g. motor car, has rotary element comprising screw hole with internal thread that is precisely fitted to inner pipe body and rotatably arranged at end section |
DE102013101083B4 (en) * | 2013-02-04 | 2015-04-02 | Yakita Metal Industry Co., Ltd. | Auxiliary tool for mounting a shock absorber |
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Legal Events
Date | Code | Title | Description |
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R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20140217 Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20140217 |
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R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20150407 |
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R005 | Application deemed withdrawn due to failure to request examination |