DE102004007961B4 - Vibration damper with a cable stop - Google Patents
Vibration damper with a cable stop Download PDFInfo
- Publication number
- DE102004007961B4 DE102004007961B4 DE102004007961.7A DE102004007961A DE102004007961B4 DE 102004007961 B4 DE102004007961 B4 DE 102004007961B4 DE 102004007961 A DE102004007961 A DE 102004007961A DE 102004007961 B4 DE102004007961 B4 DE 102004007961B4
- Authority
- DE
- Germany
- Prior art keywords
- spring
- carrier
- vibration damper
- damper according
- piston rod
- 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 - Fee Related
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/021—Spring characteristics, e.g. mechanical springs and mechanical adjusting means the mechanical spring being a coil spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
- B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
- B60G15/062—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper
- B60G15/063—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper characterised by the mounting of the spring on the damper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
- B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
- B60G15/062—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper
- B60G15/065—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper characterised by the use of a combination of springs
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/371—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by inserts or auxiliary extension or exterior elements, e.g. for rigidification
- F16F1/3713—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by inserts or auxiliary extension or exterior elements, e.g. for rigidification with external elements passively influencing spring stiffness, e.g. rings or hoops
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
- F16F3/10—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/58—Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder
- F16F9/585—Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder within the cylinder, in contact with working fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/14—Plastic spring, e.g. rubber
- B60G2202/143—Plastic spring, e.g. rubber subjected to compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/30—Spring/Damper and/or actuator Units
- B60G2202/31—Spring/Damper and/or actuator Units with the spring arranged around the damper, e.g. MacPherson strut
- B60G2202/312—The spring being a wound spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/125—Mounting of rubber type springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
- B60G2204/12—Mounting of springs or dampers
- B60G2204/126—Mounting of pneumatic springs
- B60G2204/1262—Mounting of pneumatic springs on a damper
Abstract
Schwingungsdämpfer, umfassend eine Kolbenstange, die axial beweglich in einem Zylinder geführt ist, wobei die Kolbenstange einen ersten Träger (17) für eine erste Feder (21) aufweist und diese erste Feder (21) wiederum einen zweiten Träger (23) für eine zweite Feder stützt, dadurch gekennzeichnet, dass die erste Feder (21) als ein elastischer Körper und die zweite Feder (25) als eine Schraubenfeder ausgeführt ist, wobei der elastische Körper von einer Manschette (31) in seiner radialen Durchmesservergrößerung begrenzt ist und die Federrate der Schraubendruckfeder (25) kleiner ist als die Federrate des elastischen Körpers (21), wobei die Manschette (31) mit ihrer Stirnfläche (33; 35) einen Abstand a zu einem Träger (17; 23) aufweist, und bei maximalem Federweg liegt die Stirnfläche am Träger (17; 23) an.A vibration damper comprising a piston rod axially movably guided in a cylinder, said piston rod having a first support (17) for a first spring (21) and said first spring (21) in turn comprising a second support (23) for a second spring supported, characterized in that the first spring (21) as an elastic body and the second spring (25) is designed as a helical spring, wherein the elastic body of a collar (31) is limited in its radial diameter increase and the spring rate of the helical compression spring (25) is smaller than the spring rate of the elastic body (21), wherein the sleeve (31) with its end face (33; 35) has a distance a to a carrier (17; 23), and at maximum spring travel, the end face lies on Carrier (17; 23).
Description
Die Erfindung betrifft einen Schwingungsdämpfer mit einem Zuganschlag gemäß dem Oberbegriff von Patentanspruch 1.The invention relates to a vibration damper with a cable stop according to the preamble of claim 1.
Aus der
Prinzipiell ist die Federrate eines derartigen elastischen Körpers vergleichsweise groß. Man erhält zwar einen u. U. sehr kompakt bauenden Zuganschlag, doch kann dieser Zuganschlag die Kolbenstangenausfahrbewegung häufig nicht ausreichend komfortabel begrenzen. Deshalb werden sehr häufig Zuganschläge mit Schraubenfeder verwendet, wie z. B. in der
Die
Die
Die
Aufgabe der vorliegenden Erfindung ist es einen Schwingungsdämpfer mit einem Zuganschlag mit einer gestuften Federkraftkennlinie zu erreichen, der einerseits kostengünstig und einen kleinen axialen Bauraum benötigt.Object of the present invention is to achieve a vibration damper with a Zuganschlag with a stepped spring force characteristic, on the one hand cost and requires a small axial space.
Erfindungsgemäß wird die Aufgabe durch des Patentanspruch 1 gelöst.According to the invention the object is achieved by the patent claim 1.
Durch die Kombination der beiden verschiedenartigen Federn wird eine gestufte Federkennlinie mit sehr einfachen Mitteln erreicht. Die Manschette schützt den elastischen Körper, so dass auch die zweite Feder mit einer relativ kleinen Federkonstante ausgeführt sein kann.By combining the two different springs a stepped spring characteristic is achieved with very simple means. The sleeve protects the elastic body, so that the second spring can be designed with a relatively small spring constant.
Zur Vermeidung von Oberflächenbeschädigungen der Kolbenstange durch die Schraubenfeder ist der zweite Träger als ein Federteller mit einer Zentrierhülse ausgeführt.To avoid surface damage to the piston rod by the coil spring of the second carrier is designed as a spring plate with a centering sleeve.
Damit die Schraubenfeder innerhalb des Schwingungsdämpfers vollständig radial zentriert ist, ohne dass eine zylinderseitige Abstützung notwendig ist, weist die Schraubenfeder an beiden Enden einen Federteller auf.Thus, the coil spring is completely radially centered within the vibration damper, without a cylinder-side support is necessary, the coil spring has a spring plate at both ends.
Bei einer ersten vorteilhaften Variante sind der erste Träger und die Manschette einteilig ausgeführt sind. Das eröffnet die Möglichkeit, dass der zweite und der dritte Träger als identische Bauteile ausgeführt sind. Folglich gibt es keine Fehlerquelle, aufgrund der der Zuganschlag durch vertauschte Träger nicht die gewünschte Funktion erfüllt.In a first advantageous variant, the first carrier and the sleeve are made in one piece. This opens up the possibility that the second and the third carrier are designed as identical components. Consequently, there is no source of error, due to the fact that the train stop by exchanged carriers does not fulfill the desired function.
Man kann auch vorsehen, dass der zweite Träger und die Manschette einteilig ausgeführt sind. Der erste Träger ist in vielen Schwingungsdämpfern enthalten, die lediglich eine Ausfahrbegrenzung ohne Zuganschlagfeder aufweisen, beispielsweise um einen Ausfederweg zu begrenzen, wie er beim Radwechsel vorkommt. Wenn der zweite Träger und die Manschette einteilig ausgeführt sind, besteht die Möglichkeit, dass ein bereits vorhandener Träger weiter benutzt werden kann. Folglich kann auch die Baueinheit Kolbenstange-erster Träger unabhängig von der Verwendung eines Zuganschlags hergestellt und lagermäßig sehr einfach verwaltet werden.It can also be provided that the second carrier and the sleeve are made in one piece. The first carrier is included in many vibration dampers, which have only a Ausfahrbegrenzung without Zuganschlagfeder, for example, to limit a Ausfederweg as it occurs when changing the wheel. If the second carrier and the collar are made in one piece, there is the possibility that an already existing carrier can continue to be used. Consequently, the assembly piston rod-first support can be made regardless of the use of a Zuganschlags and stored moderately managed very easily.
Bei einer weiteren Ausführung sind der Federteller und die Manschette einteilig ausgeführt sind.In a further embodiment, the spring plate and the sleeve are made in one piece.
Es kann durchaus sinnvoll sein, wenn der zweiten Feder eine dritte Feder in Reihe nachgeschaltet ist, die von einem dritten Träger auf der zweiten Feder gehalten wird.It may well be useful if the second spring, a third spring is connected in series downstream, which is held by a third carrier on the second spring.
Um die erste und dritte Feder während der Montage leichter handhaben zu können, bilden die erste Feder mit dem zweiten Träger und die dritte Feder mit dem dritten Träger eine Presspassung bilden. In order to handle the first and third spring easier during assembly, form the first spring with the second carrier and the third spring with the third carrier form an interference fit.
Des weiteren kann vorgesehen sein, dass der zweite und der dritte Träger mit der Schraubenfeder eine Montageverbindung eingehen.Furthermore, it can be provided that the second and the third carrier enter into a mounting connection with the coil spring.
Anhand der folgenden Figurenbeschreibung soll die Erfindung näher erläutert werden.The invention will be explained in more detail with reference to the following description of the figures.
Es zeigt:It shows:
Die
Ab einer definierten Kolbenstangenposition kann sich die Zuganschlag
Zum Schutz der ersten Feder
In der
Die
Eine weitere Abwandlung zeigt die
In der
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004007961.7A DE102004007961B4 (en) | 2003-04-17 | 2004-02-18 | Vibration damper with a cable stop |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10317633 | 2003-04-17 | ||
DE10317633.0 | 2003-04-17 | ||
DE102004007961.7A DE102004007961B4 (en) | 2003-04-17 | 2004-02-18 | Vibration damper with a cable stop |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102004007961A1 DE102004007961A1 (en) | 2004-10-28 |
DE102004007961B4 true DE102004007961B4 (en) | 2015-11-12 |
Family
ID=33039114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004007961.7A Expired - Fee Related DE102004007961B4 (en) | 2003-04-17 | 2004-02-18 | Vibration damper with a cable stop |
Country Status (1)
Country | Link |
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DE (1) | DE102004007961B4 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006005621B4 (en) * | 2006-02-06 | 2012-01-26 | Zf Friedrichshafen Ag | Stop spring for a piston-cylinder unit |
DE102007045892B4 (en) * | 2007-09-25 | 2013-04-04 | Thyssenkrupp Bilstein Suspension Gmbh | Vibration damper with a cable stop |
DE102010028536B4 (en) * | 2010-05-04 | 2012-08-23 | Zf Friedrichshafen Ag | Vibration damper with sliding spring guide element |
DE102015212621A1 (en) | 2015-07-06 | 2017-01-12 | Bayerische Motoren Werke Aktiengesellschaft | Telescopic vibration damper with hydraulic end stop |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1816598U (en) * | 1960-06-25 | 1960-08-11 | Auto Union Gmbh | SHOCK ABSORBERS, IN PARTICULAR FOR MOTOR VEHICLES. |
DE1145445B (en) * | 1960-08-26 | 1963-03-14 | Lemfoerder Metallwarengesellsc | Additional suspension for telescopic shock absorbers |
DE7703395U1 (en) * | 1977-02-05 | 1977-09-08 | Fichtel & Sachs Ag, 8720 Schweinfurt | Shock absorbers for motor vehicles with a cable stop |
DE7837029U1 (en) * | 1978-12-14 | 1979-04-12 | Fichtel & Sachs Ag, 8720 Schweinfurt | Shock absorber or strut with mechanical cable stop |
JPH05118372A (en) * | 1991-10-17 | 1993-05-14 | Tokico Ltd | Hydraulic shock absorber |
DE4408405A1 (en) * | 1993-08-14 | 1995-02-16 | Fichtel & Sachs Ag | Vibration damper with mechanical tension stop |
DE4420134C1 (en) * | 1994-06-09 | 1995-10-05 | Fichtel & Sachs Ag | Oscillation damper with mechanical traction stop |
DE19626143A1 (en) * | 1996-07-01 | 1998-01-08 | Mannesmann Sachs Ag | Vibration damper for motor vehicle |
DE19514101C2 (en) * | 1994-04-15 | 1998-12-17 | Delphi Automotive Systems Gmbh | Vibration damper |
JPH1137205A (en) * | 1997-07-25 | 1999-02-12 | Toyota Motor Corp | Bound stopper |
WO2002066856A1 (en) * | 2001-02-19 | 2002-08-29 | Chong-Kwan Park | Shock absorber |
-
2004
- 2004-02-18 DE DE102004007961.7A patent/DE102004007961B4/en not_active Expired - Fee Related
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1816598U (en) * | 1960-06-25 | 1960-08-11 | Auto Union Gmbh | SHOCK ABSORBERS, IN PARTICULAR FOR MOTOR VEHICLES. |
DE1145445B (en) * | 1960-08-26 | 1963-03-14 | Lemfoerder Metallwarengesellsc | Additional suspension for telescopic shock absorbers |
DE7703395U1 (en) * | 1977-02-05 | 1977-09-08 | Fichtel & Sachs Ag, 8720 Schweinfurt | Shock absorbers for motor vehicles with a cable stop |
DE7837029U1 (en) * | 1978-12-14 | 1979-04-12 | Fichtel & Sachs Ag, 8720 Schweinfurt | Shock absorber or strut with mechanical cable stop |
JPH05118372A (en) * | 1991-10-17 | 1993-05-14 | Tokico Ltd | Hydraulic shock absorber |
DE4408405A1 (en) * | 1993-08-14 | 1995-02-16 | Fichtel & Sachs Ag | Vibration damper with mechanical tension stop |
DE19514101C2 (en) * | 1994-04-15 | 1998-12-17 | Delphi Automotive Systems Gmbh | Vibration damper |
DE4420134C1 (en) * | 1994-06-09 | 1995-10-05 | Fichtel & Sachs Ag | Oscillation damper with mechanical traction stop |
DE19626143A1 (en) * | 1996-07-01 | 1998-01-08 | Mannesmann Sachs Ag | Vibration damper for motor vehicle |
JPH1137205A (en) * | 1997-07-25 | 1999-02-12 | Toyota Motor Corp | Bound stopper |
WO2002066856A1 (en) * | 2001-02-19 | 2002-08-29 | Chong-Kwan Park | Shock absorber |
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Publication number | Publication date |
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DE102004007961A1 (en) | 2004-10-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
R081 | Change of applicant/patentee |
Owner name: ZF FRIEDRICHSHAFEN AG, DE Free format text: FORMER OWNER: ZF SACHS AG, 97424 SCHWEINFURT, DE Effective date: 20121030 |
|
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |