DE102008028699B3 - Vibration damper for motor vehicle, has piston rod guide comprising projection that is designed in V-shape in cross section and arranged such that line contact is provided between projection and compression spring - Google Patents
Vibration damper for motor vehicle, has piston rod guide comprising projection that is designed in V-shape in cross section and arranged such that line contact is provided between projection and compression spring Download PDFInfo
- Publication number
- DE102008028699B3 DE102008028699B3 DE200810028699 DE102008028699A DE102008028699B3 DE 102008028699 B3 DE102008028699 B3 DE 102008028699B3 DE 200810028699 DE200810028699 DE 200810028699 DE 102008028699 A DE102008028699 A DE 102008028699A DE 102008028699 B3 DE102008028699 B3 DE 102008028699B3
- Authority
- DE
- Germany
- Prior art keywords
- projection
- piston rod
- compression spring
- vibration damper
- rod guide
- 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
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
- 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
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/02—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally
- B60G13/06—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type
- B60G13/08—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
-
- 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
- B60G2204/124—Mounting of coil springs
- B60G2204/1242—Mounting of coil springs on a damper, e.g. MacPerson strut
- B60G2204/12422—Mounting of coil springs on a damper, e.g. MacPerson strut anchoring the end coils on the spring support plate
-
- 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
- B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
- B60G2204/45—Stops limiting travel
- B60G2204/4502—Stops limiting travel using resilient buffer
- B60G2204/45021—Stops limiting travel using resilient buffer for limiting upper mount movement of a McPherson strut
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/40—Constructional features of dampers and/or springs
- B60G2206/41—Dampers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
Die Erfindung bezieht sich auf einen Schwingungsdämpfer, insbesondere für Kraftfahrzeuge, umfassend einen Arbeitszylinder, der endseitig von einer Kolbenstangenführung abgeschlossen wird, die eine axial bewegliche Kolbenstange zentriert und abdichtet, wobei der an der Kolbenstange befestigte Kolben den Arbeitszylinder in einen oberen und unteren Arbeitsraum unterteilt, einen Zuganschlag in Form einer Druckfeder, die im oberen Arbeitsraum angeordnet und zumindest bei ausgefahrener Kolbenstange an der Kolbenstangenführung zur Anlage kommt.The The invention relates to a vibration damper, in particular for motor vehicles, comprising a working cylinder, the end of a piston rod guide completed which centers and seals an axially movable piston rod, wherein the piston attached to the piston rod, the working cylinder divided into an upper and lower working space, a Zuganschlag in the form of a compression spring, which is arranged in the upper working space and at least when extended piston rod on the piston rod guide to Plant comes.
Durch Zug- und Druckanschläge wird der Hub eines Schwingungsdämpfers eingeschränkt. Der Schwingungsdämpfer begrenzt damit in vielen Fällen auch die Bewegung der Achse und hat erhebliche Lasten aufzunehmen, die bei der Auslegung konstruktiv berücksichtigt werden müssen. In den meisten Fällen bestehen die Anschläge im Wesentlichen aus einer harten, meist progressiven Feder. Zug- und Druckanschläge werden einerseits benötigt, um bei ungewöhnlich starken Anregungen (Durchfahren eines Schlaglochs, Überfahren einer Bord steinkante) ein weiches Anschlagen des Dämpfers zu ermöglichen. Dies schont einerseits die Komponenten des Fahrzeugs und reduziert andererseits die bei diesen Fahrvorgängen entstehenden Geräusche.By Pull and pressure stops becomes the stroke of a vibration damper limited. Of the vibration limited in many cases also the movement of the axle and has to absorb considerable loads, which must be considered constructively in the design. In most cases exist the stops essentially a hard, mostly progressive spring. Train- and pressure stops are needed on the one hand, at unusual strong suggestions (driving through a pothole, driving over a Bordsteinkante) a soft striking the damper enable. On the one hand, this protects the components of the vehicle and reduces them on the other hand, the noise generated during these driving events.
Unter anderen Möglichkeiten werden bei elastischen Zuganschlägen auch federnde Zuganschläge mit Schraubenfedern verwendet. Sie werden überwiegend in Federbeinen verwendet und dienen dazu, niedrige Stabilisator- und Federraten zu ermöglichen und damit den Komfort im Fahrzeug zu steigern. Die Schraubenfedern werden aus hochfesten Federstählen gefertigt und lassen sich auch als Rechteckfedern ausführen, um sie im Bauraum bzw. der Beanspruchung optimal anzupassen.Under other possibilities become with elastic Zuganschlägen also resilient cable stops used with coil springs. They are mainly used in struts and serve to allow low stabilizer and spring rates and thus to increase the comfort in the vehicle. The coil springs are made of high strength spring steels manufactured and can be run as a rectangular springs to optimally adapt them in the installation space or the load.
Zuganschläge dieser
Art sind bekannt, z. B. aus der
Aus
der
Der
Schwingungsdämpfer
gemäß
Aufgabe der Erfindung ist es, einen Zuganschlag in einem Schwingungsdämpfer bzw. Federbein derart auszubilden, dass die Anschlagkräfte zwischen der Zuganschlagfeder und der Kolbenstangenführung gleichmäßig in die Kolbenstangenführung und somit in die Verschlußeinheit eingeleitet werden.task The invention is a Zuganschlag in a vibration damper or Shock form such that the impact forces between the Zuganschlagfeder and the piston rod guide evenly in the Piston rod guide and thus in the closure unit be initiated.
Zur Lösung dieser Aufgabe ist erfindungsgemäß vorgesehen, dass die der Druckfeder zugewandten Stirnfläche der Kolbenstangenführung mindestens einen in Richtung der Druckfeder verlaufenden Vorsprung aufweist, der im Querschnitt V-förmig ausgebildet ist und derart angeordnet ist, dass zwischen dem Vorsprung und der Druckfeder eine Linienberührung vorhanden ist.to solution this object is inventively provided that the compression spring facing end face of the piston rod guide at least has a projection extending in the direction of the compression spring, formed in cross-section V-shaped is and is arranged such that between the projection and the Compression spring a line contact is available.
Vorteilhaft ist hierbei, dass die Stirnfläche der Kolbenstangenführung, die gleichzeitig die Aufstandsfläche der Druckfeder ist, mit einem Vorsprung zu versehen, der sich unter Krafteinwirkung entsprechend der Flächenpressung plastisch verformt, um somit eine gleichmäßigere Kraftübertragung zu gewährleisten, indem nach der plastischen Verformung des Vorsprungs die Flächenpressung verringert wird und damit ein eventuell auftretendes Biegemoment in der Stirnfläche der Kolbenstangenführung deutlich verringert wird.Advantageous Here is that the face the piston rod guide, the footprint at the same time the compression spring is to provide a projection that extends below Force effect plastically deformed according to the surface pressure, thus a more even power transmission to ensure, by after the plastic deformation of the projection, the surface pressure is reduced and thus a possibly occurring bending moment in the frontal area the piston rod guide is significantly reduced.
Nach einer weiteren wesentlichen Ausführungsform ist vorgesehen, dass der Vorsprung über den gesamten Umfang der Stirnfläche verläuft.To another essential embodiment is provided that the projection over the entire circumference of face runs.
Eine günstige Ausführungsform sieht vor, dass der Vorsprung eine Fläche aufweist, die weniger als die Hälfte der Stirnfläche beträgt. Hierbei ist von Vorteil, dass je kleiner die Fläche der Vorsprünge ist, desto größer ist die plastische Verformung der Vorsprünge unter einer entsprechenden Krafteinwirkung.A favorable embodiment provides that the projection has an area less than the half the face is. It is advantageous that the smaller the area of the projections, the more is larger the plastic deformation of the projections under a corresponding Force.
Nach einer weiteren Ausführungsform ist vorgesehen, dass mehrere gleichmäßig über dem Umfang verteilt angeordnete Vorsprünge vorgesehen sind.To a further embodiment It is envisaged that several uniformly distributed over the circumference projections are provided.
Bevorzugte Ausführungsbeispiele der Erfindung sind in den Zeichnungen schematisch dargestellt.preferred embodiments The invention are shown schematically in the drawings.
Es zeigt:It shows:
Der
in
Die
Druckfeder
Aus
der
- 11
- Schwingungsdämpfervibration
- 22
- Arbeitszylinderworking cylinder
- 33
- KolbenstangenführungPiston rod guide
- 44
- Kolbenstangepiston rod
- 55
- Zuganschlagcable stop
- 66
- Stirnflächeface
- 77
- Vorsprunghead Start
- 88th
- Verschlusselementclosure element
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810028699 DE102008028699B3 (en) | 2008-06-17 | 2008-06-17 | Vibration damper for motor vehicle, has piston rod guide comprising projection that is designed in V-shape in cross section and arranged such that line contact is provided between projection and compression spring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810028699 DE102008028699B3 (en) | 2008-06-17 | 2008-06-17 | Vibration damper for motor vehicle, has piston rod guide comprising projection that is designed in V-shape in cross section and arranged such that line contact is provided between projection and compression spring |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008028699B3 true DE102008028699B3 (en) | 2010-01-07 |
Family
ID=41396953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810028699 Expired - Fee Related DE102008028699B3 (en) | 2008-06-17 | 2008-06-17 | Vibration damper for motor vehicle, has piston rod guide comprising projection that is designed in V-shape in cross section and arranged such that line contact is provided between projection and compression spring |
Country Status (1)
Country | Link |
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DE (1) | DE102008028699B3 (en) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3126654A1 (en) * | 1980-07-17 | 1982-04-08 | IAO Industrie Riunite S.p.A., 10092 Beinasco, Torino | Hydraulic telescopic shock absorber, in particular for motor vehicles |
DE2806540C2 (en) * | 1978-02-16 | 1994-04-07 | Fichtel & Sachs Ag, 8720 Schweinfurt, De | |
DE4420134C1 (en) * | 1994-06-09 | 1995-10-05 | Fichtel & Sachs Ag | Oscillation damper with mechanical traction stop |
JPH0874917A (en) * | 1994-08-31 | 1996-03-19 | Kayaba Ind Co Ltd | Rebound spring structure of buffer |
DE19626143A1 (en) * | 1996-07-01 | 1998-01-08 | Mannesmann Sachs Ag | Vibration damper for motor vehicle |
JP2001193782A (en) * | 2000-01-11 | 2001-07-17 | Showa Corp | Hydraulic shock absorber |
DE10155240A1 (en) * | 2000-11-09 | 2002-08-14 | Daido Metal Co Ltd | Hydraulic shock absorber |
DE10320001B3 (en) * | 2003-05-06 | 2004-08-05 | Zf Sachs Ag | Oscillation damper has coil spring stop for limiting stroke of piston rod secured by retaining profile formed in wall of damper cylinder |
DE20319511U1 (en) * | 2003-12-16 | 2005-04-28 | Al-Ko Kober Ag | Shock absorber with stop |
-
2008
- 2008-06-17 DE DE200810028699 patent/DE102008028699B3/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2806540C2 (en) * | 1978-02-16 | 1994-04-07 | Fichtel & Sachs Ag, 8720 Schweinfurt, De | |
DE3126654A1 (en) * | 1980-07-17 | 1982-04-08 | IAO Industrie Riunite S.p.A., 10092 Beinasco, Torino | Hydraulic telescopic shock absorber, in particular for motor vehicles |
DE4420134C1 (en) * | 1994-06-09 | 1995-10-05 | Fichtel & Sachs Ag | Oscillation damper with mechanical traction stop |
JPH0874917A (en) * | 1994-08-31 | 1996-03-19 | Kayaba Ind Co Ltd | Rebound spring structure of buffer |
DE19626143A1 (en) * | 1996-07-01 | 1998-01-08 | Mannesmann Sachs Ag | Vibration damper for motor vehicle |
JP2001193782A (en) * | 2000-01-11 | 2001-07-17 | Showa Corp | Hydraulic shock absorber |
DE10155240A1 (en) * | 2000-11-09 | 2002-08-14 | Daido Metal Co Ltd | Hydraulic shock absorber |
DE10320001B3 (en) * | 2003-05-06 | 2004-08-05 | Zf Sachs Ag | Oscillation damper has coil spring stop for limiting stroke of piston rod secured by retaining profile formed in wall of damper cylinder |
DE20319511U1 (en) * | 2003-12-16 | 2005-04-28 | Al-Ko Kober Ag | Shock absorber with stop |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20150101 |