DE102004014250B4 - Vibration damper with a stone guard - Google Patents
Vibration damper with a stone guard Download PDFInfo
- Publication number
- DE102004014250B4 DE102004014250B4 DE102004014250.5A DE102004014250A DE102004014250B4 DE 102004014250 B4 DE102004014250 B4 DE 102004014250B4 DE 102004014250 A DE102004014250 A DE 102004014250A DE 102004014250 B4 DE102004014250 B4 DE 102004014250B4
- Authority
- DE
- Germany
- Prior art keywords
- cylinder
- vibration damper
- pipe part
- rockfall protection
- protection device
- 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
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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
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/061—Mono-tubular units
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/38—Covers for protection or appearance
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Schwingungsdämpfer (1), umfassend einen Zylinder (3), in dem eine Kolbenstange (7) axial beweglich angeordnet ist, wobei zumindest ein Teil des Zylinders (3) von einer Steinschlag-Schutzeinrichtung abgedeckt ist, dadurch gekennzeichnet, dass die Steinschlag-Schutzeinrichtung von einem Rohrteil (19) gebildet wird, das auf dem Zylinder (3) aufgeschoben und axial beidseitig fixiert ist, wobei eine Fixierung von einer Durchmesservergrößerung (23) eines Bodens (13) des Zylinders (3) gebildet wird.Vibration damper (1) comprising a cylinder (3) in which a piston rod (7) is arranged axially movable, wherein at least a part of the cylinder (3) is covered by a rockfall protection device, characterized in that the rockfall protection device of a tube part (19) is formed, which is pushed onto the cylinder (3) and axially fixed on both sides, wherein a fixation of an increase in diameter (23) of a bottom (13) of the cylinder (3) is formed.
Description
Die Erfindung betrifft einen Schwingungsdämpfer mit einem Steinschlagschutz.The invention relates to a vibration damper with a rockfall protection.
Moderne Fahrzeuge, die einen erhöhten Anspruch an die Transportkapazität erfüllen müssen, verfügen zunehmend über liegend eingebaute Schwingungsdämpfer. Diese Anordnung bringt den großen Vorteil mit sich, dass die bisher bekannten oberen Aufhängungspunkte der Schwingungsdämpfer, die die Durchladebreite des Fahrzeugs bestimmen, unterhalb des Ladebodens angeordnet sind.Modern vehicles that have to meet increased demands on the transport capacity, increasingly have horizontally mounted vibration damper. This arrangement has the great advantage that the hitherto known upper suspension points of the vibration damper, which determine the through-loading width of the vehicle, are arranged below the loading floor.
Des Weiteren besteht die Tendenz darin, dass die Schwingungsdämpfer immer leichter gebaut werden soll. Ersatzwerkstoffe wie Aluminium finden Anwendung oder es werden die Wandstärken des Zylinders vom Schwingungsdämpfer reduziert. Diese Maßnahmen sind zwar im Hinblick auf die Gewichtsreduzierung erfolgreich, doch tritt bei den liegend eingebauten Schwingungsdämpfern das Problem auf, dass kleine Steine von der Fahrbahn in Richtung der Schwingungsdämpfer geschleudert werden können. Bei senkrecht stehenden Schwingungsdämpfern kann nichts passieren, da die Steine unter einem sehr spitzen Winkel auftreffen und höchsten Lackspuren hinterlassen. Die liegend eingebauten Schwingungsdämpfer können jedoch deutliche Dellen zeigen, die u. U. zu einem Klemmen des Kolbens innerhalb des Schwingungsdämpfers führen. Insbesondere Einrohr-Schwingungsdämpfer sind in diesem Punkt kritisch.Furthermore, the tendency is that the vibration damper should be built ever lighter. Replacement materials such as aluminum are used or the wall thicknesses of the cylinder are reduced by the vibration damper. Although these measures are successful in terms of weight reduction, the problem arises in the horizontally mounted vibration dampers that small stones from the roadway in the direction of the vibration damper can be thrown. With vertical vibration dampers, nothing can happen because the stones hit at a very acute angle and leave the highest traces of paint. However, the horizontally mounted vibration damper can show significant dents that u. U. lead to a jamming of the piston within the vibration damper. In particular, single-tube vibration dampers are critical in this point.
Es sind zahlreiche Steinschlagschutzrohre bekannt, die zumindest mittelbar an der Kolbenstange befestigt sind. Bei einem starren Steinschlagschutzrohr, wie z. B. aus der
Aus der
Aufgabe der vorliegenden Erfindung ist es, die Folgen des Steinschlags auf einen Schwingungsdämpfer zu minimieren.The object of the present invention is to minimize the consequences of rockfall on a vibration damper.
Erfindungsgemäß wird die Aufgabe durch die Merkmale des Patentanspruchs 1 gelöst.According to the invention, the object is solved by the features of
Der wesentliche Vorteil der Erfindung besteht darin, dass weiterhin relativ dünnwandige Zylinder für einen Schwingungsdämpfer verwendet werden können. Außerhalb der Steinschlagzone befindliche Abschnitte des Zylinders müssen nicht abgedeckt werden.The essential advantage of the invention is that, furthermore, relatively thin-walled cylinders can be used for a vibration damper. Outside of the rockfall zone located sections of the cylinder need not be covered.
Des weiteren kann ein Rohrteil auf einen Standard-Dämpfer nachgerüstet werden, ohne dass tiefgreifende Änderungen notwendig sind.Furthermore, a pipe part can be retrofitted to a standard damper, without profound changes are necessary.
Es besteht die Möglichkeit, dass das Rohrteil axial geschlitzt ausgeführt ist. Damit wäre eine Nachrüstbarkeit denkbar, da das Rohrteil in Grenzen aufweitbar ist. Der Schlitz stellt eine Minimierung des Material- und damit des Gewichtsaufwandes dar.There is the possibility that the pipe part is made axially slotted. This retrofittability would be conceivable because the pipe part is expandable within limits. The slot represents a minimization of the material and thus the weight.
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.
Die einzige Figur zeigt den unteren Teil eines Federbeins
Des Weiteren umfasst der Schwingungsdämpfer
Wie ersichtlich ist, ist das Rohrteil
Alternativ oder ergänzend zum Rohrteil kann die Oberfläche des Zylinders beschichtet sein. Denkbar sind elastische Beschichtungen oder Hartlacke. Versuche haben gezeigt, dass die Beschichtung des Zylinders auch über einen Klebestreifen erfolgen kann. Vielfach liegt die betriebliche Ausstattung für partielles Beschichten nicht vor. Durch die Verwendung von Klebestreifen
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004014250.5A DE102004014250B4 (en) | 2003-04-24 | 2004-03-24 | Vibration damper with a stone guard |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10318536.4 | 2003-04-24 | ||
DE10318536 | 2003-04-24 | ||
DE102004014250.5A DE102004014250B4 (en) | 2003-04-24 | 2004-03-24 | Vibration damper with a stone guard |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102004014250A1 DE102004014250A1 (en) | 2004-11-11 |
DE102004014250B4 true DE102004014250B4 (en) | 2015-11-12 |
Family
ID=33154379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004014250.5A Expired - Fee Related DE102004014250B4 (en) | 2003-04-24 | 2004-03-24 | Vibration damper with a stone guard |
Country Status (1)
Country | Link |
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DE (1) | DE102004014250B4 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004060304B4 (en) | 2004-12-15 | 2010-01-14 | Stabilus Gmbh | Piston-cylinder unit and method of manufacturing a piston-cylinder unit |
DE102006001305B3 (en) * | 2006-01-09 | 2007-04-05 | Zf Friedrichshafen Ag | Vibration damper for vehicle, has retaining tongue which represents a separate construction unit and locking means which comes in locking connection with tubing part |
DE102009049025B3 (en) * | 2009-10-10 | 2011-02-10 | Bayerische Motoren Werke Aktiengesellschaft | Linear type vibration damper for use as shock absorber in chassis of motor vehicle, has cap fastened to damper, where wall section of cap is supported by clamp, which stays perpendicular in plane on cylindrical axis of hollow cylinder |
DE102012220157A1 (en) * | 2012-11-06 | 2014-06-26 | Zf Friedrichshafen Ag | Vibration damper has electrically operable control valve arrangement that is provided in housing, and cap that is enclosed in control valve arrangement of housing |
DE102014202203A1 (en) * | 2014-02-06 | 2015-08-06 | Zf Friedrichshafen Ag | Apparatus for producing a piston-cylinder unit |
Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1874288U (en) * | 1963-04-20 | 1963-06-20 | Hemscheidt Maschf Hermann | PROTECTIVE SHEET PIPE, IN PARTICULAR FOR HYDRAULIC VIBRATION DAMPERS. |
GB1085388A (en) * | 1964-12-18 | 1967-09-27 | Ford Motor Co | Telescopic shock absorbers |
DE1902019A1 (en) * | 1969-01-16 | 1970-08-06 | Fichtel & Sachs Ag | Plastic protection tube for vibration dampers, suspensions or the like. |
DE1956135A1 (en) * | 1969-11-07 | 1971-05-19 | Continental Gummi Werke Ag | Shock absorber with stop buffer and protective tube |
DE7201898U (en) * | 1971-02-25 | 1972-04-20 | Gm Ltd | Protective tube of plastic for telescopic shock absorbers, in particular for motor vehicles |
DE7519757U (en) * | 1975-06-21 | 1975-11-13 | Stabilus Gmbh | Protection tube for shock absorbers |
DE7922720U1 (en) * | 1979-08-09 | 1979-12-20 | Fichtel & Sachs Ag, 8720 Schweinfurt | Protection tube for shock absorbers |
DE2618019B2 (en) * | 1975-06-02 | 1980-04-10 | Deutsche Itt Industries Gmbh, 7800 Freiburg | Protective tube for the piston rod of a telescopic vibration damper |
DE8312807U1 (en) * | 1983-04-30 | 1983-07-28 | Schmidt, Gerrit, 2941 Lekkerkerk | Device for shielding the piston rod of a shock absorber |
DE3622891A1 (en) * | 1986-07-08 | 1988-01-28 | Peter J Zorowik | Film for protecting body parts and moulded bodies made of a film |
DE3743100C2 (en) * | 1986-12-22 | 1989-07-06 | General Motors Corp., Detroit, Mich., Us | |
DE3519064C2 (en) * | 1985-05-28 | 1990-02-15 | Dynamit Nobel Ag, 5210 Troisdorf, De | |
DE3902407C1 (en) * | 1989-01-27 | 1990-05-10 | Audi Ag, 8070 Ingolstadt, De | Bearing |
DE19721816A1 (en) * | 1996-06-07 | 1997-12-11 | Stabilus Gmbh | Piston and cylinder, such as gas spring |
DE19753637A1 (en) * | 1996-12-17 | 1998-06-18 | Phoenix Ag | Pneumatic spring system for construction of McPherson strut |
DE19839158A1 (en) * | 1998-08-28 | 2000-03-02 | Volkswagen Ag | Protective cover for a body part of a vehicle and method for its production |
US6042092A (en) * | 1996-12-06 | 2000-03-28 | Inoac Corporation | Bellows cylinder |
DE10052788A1 (en) * | 1999-12-02 | 2001-06-07 | Stabilus Gmbh | Piston-cylinder unit with corrosion protection, e.g. pneumatic spring has connection part with contact face and seal engaging on pressure pipe, and heat-shrink sleeve |
-
2004
- 2004-03-24 DE DE102004014250.5A patent/DE102004014250B4/en not_active Expired - Fee Related
Patent Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1874288U (en) * | 1963-04-20 | 1963-06-20 | Hemscheidt Maschf Hermann | PROTECTIVE SHEET PIPE, IN PARTICULAR FOR HYDRAULIC VIBRATION DAMPERS. |
GB1085388A (en) * | 1964-12-18 | 1967-09-27 | Ford Motor Co | Telescopic shock absorbers |
DE1902019A1 (en) * | 1969-01-16 | 1970-08-06 | Fichtel & Sachs Ag | Plastic protection tube for vibration dampers, suspensions or the like. |
DE1956135A1 (en) * | 1969-11-07 | 1971-05-19 | Continental Gummi Werke Ag | Shock absorber with stop buffer and protective tube |
DE7201898U (en) * | 1971-02-25 | 1972-04-20 | Gm Ltd | Protective tube of plastic for telescopic shock absorbers, in particular for motor vehicles |
DE2618019B2 (en) * | 1975-06-02 | 1980-04-10 | Deutsche Itt Industries Gmbh, 7800 Freiburg | Protective tube for the piston rod of a telescopic vibration damper |
DE7519757U (en) * | 1975-06-21 | 1975-11-13 | Stabilus Gmbh | Protection tube for shock absorbers |
DE7922720U1 (en) * | 1979-08-09 | 1979-12-20 | Fichtel & Sachs Ag, 8720 Schweinfurt | Protection tube for shock absorbers |
DE8312807U1 (en) * | 1983-04-30 | 1983-07-28 | Schmidt, Gerrit, 2941 Lekkerkerk | Device for shielding the piston rod of a shock absorber |
DE3519064C2 (en) * | 1985-05-28 | 1990-02-15 | Dynamit Nobel Ag, 5210 Troisdorf, De | |
DE3622891A1 (en) * | 1986-07-08 | 1988-01-28 | Peter J Zorowik | Film for protecting body parts and moulded bodies made of a film |
DE3743100C2 (en) * | 1986-12-22 | 1989-07-06 | General Motors Corp., Detroit, Mich., Us | |
DE3902407C1 (en) * | 1989-01-27 | 1990-05-10 | Audi Ag, 8070 Ingolstadt, De | Bearing |
DE19721816A1 (en) * | 1996-06-07 | 1997-12-11 | Stabilus Gmbh | Piston and cylinder, such as gas spring |
US6042092A (en) * | 1996-12-06 | 2000-03-28 | Inoac Corporation | Bellows cylinder |
DE19753637A1 (en) * | 1996-12-17 | 1998-06-18 | Phoenix Ag | Pneumatic spring system for construction of McPherson strut |
DE19839158A1 (en) * | 1998-08-28 | 2000-03-02 | Volkswagen Ag | Protective cover for a body part of a vehicle and method for its production |
DE10052788A1 (en) * | 1999-12-02 | 2001-06-07 | Stabilus Gmbh | Piston-cylinder unit with corrosion protection, e.g. pneumatic spring has connection part with contact face and seal engaging on pressure pipe, and heat-shrink sleeve |
Also Published As
Publication number | Publication date |
---|---|
DE102004014250A1 (en) | 2004-11-11 |
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Legal Events
Date | Code | Title | Description |
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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 | ||
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 |