DE102005021379B3 - Gas spring for e.g. vehicle construction has guidance within cylinder sleeve, which carries piston rod whereby throttle disc is in active connection with piston rod and is relatively movable within pressure chamber, filled with gas - Google Patents
Gas spring for e.g. vehicle construction has guidance within cylinder sleeve, which carries piston rod whereby throttle disc is in active connection with piston rod and is relatively movable within pressure chamber, filled with gas Download PDFInfo
- Publication number
- DE102005021379B3 DE102005021379B3 DE200510021379 DE102005021379A DE102005021379B3 DE 102005021379 B3 DE102005021379 B3 DE 102005021379B3 DE 200510021379 DE200510021379 DE 200510021379 DE 102005021379 A DE102005021379 A DE 102005021379A DE 102005021379 B3 DE102005021379 B3 DE 102005021379B3
- Authority
- DE
- Germany
- Prior art keywords
- gas spring
- piston rod
- clamping
- gas
- spring
- 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
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/0209—Telescopic
- F16F9/0245—Means for adjusting the length of, or for locking, the spring or dampers
- F16F9/0254—Means for adjusting the length of, or for locking, the spring or dampers mechanically lockable, e.g. by use of friction collar
-
- 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
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
-
- 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
- F16F2230/00—Purpose; Design features
- F16F2230/24—Detecting or preventing malfunction, e.g. fail safe
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
Gasfedern werden in der Technik in vielfältiger Weise eingesetzt. Beispielhaft sei hier lediglich auf den Fahrzeugbau verwiesen. Hier werden Gasfedern vielfach für Heckklappen von Kraftfahrzeugen zum Einsatz gebracht.gas springs become more diverse in technology Way used. Exemplary here is only on the vehicle directed. Here gas springs are often used for tailgates of motor vehicles Use brought.
Dem DE 20 2004 015 535 U1 ist ein Fahrzeug zu entnehmen, aufweisend eine Karosserie, eine über mindestens ein Scharnier daran angeschlossene schwenkbare Öffnungsklappe und eine Feder aus elastischem Federmaterial, die derart angeordnet ist, dass sie die Bewegung der Öffnungsklappe unterstützt sowie ferner aufweisend einen Fluiddämpfer, der zum Dämpfen der Bewegung der Öffnungsklappe angeschlossen ist, wobei der Fluiddämpfer als eine Zylinder-Kolben-Einheit ausgebildet ist, und wobei die Zylinder-Kolben-Einheit als ein offenes System mit zwei durch den Kolben getrennten Kammern und einer Drosselpassage zwischen den Kammern gebildet ist, wobei eine der Kammern gegen die Umgebung abgeschlossen ist und sich die zweite Kammer in Fluidverbindung mit der Umgebung befindet.the DE 20 2004 015 535 U1 discloses a vehicle comprising a bodywork, an over at least one hinged hinged opening flap and a spring made of elastic spring material arranged in such a way is that they are the movement of the opening flap supports and further comprising a fluid damper for damping the Movement of the opening flap is connected, wherein the fluid damper is designed as a cylinder-piston unit, and wherein the cylinder-piston unit as an open system with two chambers separated by the piston and a throttle passage is formed between the chambers, one of the chambers against the environment is complete and the second chamber is in fluid communication located with the environment.
Ebenfalls denkbar ist, Gasfedern im Bereich mechanischer Vorrichtungen zum Heben eines auf Eckrungen ruhenden Dachs eines Nutzfahrzeugaufbaus einzusetzen.Also conceivable gas springs in the field of mechanical devices for Lifting a roof resting on corner stanchions of a commercial vehicle body use.
Beispielhaft
wird auf die
In den beispielhaft genannten Anwendungsfällen kann es geschehen, dass bei Ausfall der Gasfeder, beispielsweise durch Dichtungsversagen, die Funktion der Gasfeder nicht mehr gegeben ist und die damit in Wirkverbindung stehende Bauteile (Heckklappen, Hubglieder oder dergleichen) zu durch ungebremste Schwenk- oder Fallbewegung verursachte Personenschäden führen können.In the exemplified applications, it may happen that in case of failure of the gas spring, for example due to seal failure, the function of the gas spring is no longer given and thus in Actively connected components (tailgates, lifting members or the like) can lead to personal injury caused by unrestrained pan or drop motion.
Der
In
der
In
der
Der Erfindung liegt die allgemeine Aufgabe zugrunde, eine bekannte Gasfeder dahingehend weiterzubilden, dass sie selbst bei Druckverlust noch eine definierte Sicherheitsfunktion beinhaltet, so dass Unfälle. mit Personenschäden weitestgehend vermieden sind.Of the Invention is the general object of a known gas spring in such a way that they even with pressure loss one more Defined safety function involves accidents. With personal injury are largely avoided.
Diese Aufgabe wird gelöst durch eine Gasfeder, beinhaltend einen Zylindermantel, eine innerhalb des Zylindermantels vorgesehene und eine Kolbenstange aufnehmende Führung, eine mit der Kolbenstange in Wirkverbindung stehende Drosselscheibe, die innerhalb eines mit Gas gefüllten Druckraumes relativ bewegbar ist sowie eine innerhalb des Zylindermantels vorgesehene, zumindest ein Anschlagelement, ein federbelastetes Klemmelement sowie ein Auslöseelement umfassende, Sicherheitseinrichtung, mittels derer bei Druckverlust im Bereich des Druckraums die Kolbenstange in definierter Position relativ zum Zylindermantel festsetzbar ist, wobei das Auslöseelement durch einen außerhalb der Drosselscheibe vorgesehenen Auslösekolben gebildet ist, der mit einem zylindrisch ausgebildeten Stützkörper zur Abstützung des Klemmelementes zusammenwirkt, und wobei das Klemmelement in funktionsfähigem Zustand der Gasfeder mit vorgebbarem Abstand außerhalb des geneigt verlaufenden Führungsabschnittes auf dem freien Ende des Stützkörpers aufliegt und bei Druckverlust im Druckraum das Klemmelement samt Stützkörper und Auslösekolben durch die Kraft des zugeordneten, sich zwischen Klemmelement und Führung erstreckenden Federelementes in Richtung des geneigt verlaufenden Führungsabschnittes des Anschlagelementes bewegbar und durch elastische Verformung des Klemmelementes die Festsetzung der Kolbenstange, relativ zum umgebenden Zylindermantel, herbeiführbar ist.This object is achieved by a gas spring, including a cylinder jacket, provided within the cylinder jacket and a piston rod receiving guide, a standing with the piston rod in operative connection throttle plate which is relatively movable within a gas-filled pressure chamber and provided within the cylinder jacket, at least one stop element, a spring-loaded clamping element and a trigger element comprehensive, safety device by means of which at pressure loss in the area the pressure chamber, the piston rod in a defined position relative to the cylinder jacket can be fixed, wherein the trigger element is formed by a provided outside the throttle plate release piston, which cooperates with a cylindrically shaped support body for supporting the clamping element, and wherein the clamping element in functional state of the gas spring with specifiable distance outside of the inclined extending guide portion rests on the free end of the support body and at pressure loss in the pressure chamber, the clamping element together with the support body and release piston by d The force of the associated, extending between the clamping element and guide spring element in the direction of the inclined extending guide portion of the stop element movable and elastic deformation of the clamping element, the fixing of the piston rod, relative to the surrounding cylinder jacket, can be brought.
Vorteilhafte Weiterbildungen der erfindungsgemäßen Gasfeder sind den zugehörigen Unteransprüchen zu entnehmen.advantageous Further developments of the gas spring according to the invention are the associated claims remove.
Mit dem Erfindungsgegenstand wird somit eine allgemein einsetzbare Gasfeder bereitgestellt, die einen hohen Sicherheitsstandard gewährleistet und somit Unfallrisiken im Einsatzbereich der Gasfeder reduziert, so dass Personenschäden weitgehend ausgeschlossen sind.With The subject of the invention thus becomes a generally usable gas spring provided that ensures a high safety standard and thus reducing accident risks in the application of the gas spring, so that personal injury are largely excluded.
Für den jeweiligen Anwendungsbereich wird sichergestellt, dass durch Arretierung der Kolbenstange bei auftretendem Druckverlust kein weiteres Absenken der betroffenen Bauteile mehr gegeben ist, die zu möglichen Personenschäden führen könnte.For the respective Scope will ensure that by locking the Piston rod in case of pressure loss no further lowering the affected components is given more, the possible personal injury to lead could.
Mit dem Erfindungsgegenstand sind eine Vielzahl von Ausführungsmöglichkeiten denkbar, von denen einige beispielhaft in der Zeichnung dargestellt sind. Es zeigen:With The subject invention are a variety of design options conceivable, some of which are exemplified in the drawing are. Show it:
Die
einem Anschlagelement
a stop element
Der
rechte Teil der
Zwischen
dem freien Ende
Das
rechte Bild der
Wie bereits eingangs ausgeführt, kann die erfindungsgemäße Gasfeder beispielsweise auch beim Stand der Technik gemäß DE 20 2004 015 535 U1 zum Einsatz gebracht werden. Gleiches gilt für andersartige technische Anwendungsfälle, bei denen Gasfedern üblicherweise zum Einsatz gelangen. Der Erfindungsgegenstand ist somit nicht auf eine mechanische Vorrichtung zum Heben eines auf Eckrungen ruhenden Dachs eines Nutzfahrzeugaufbaus beschränkt, sondern vielmehr universell einsetzbar.As already mentioned at the beginning, can the gas spring according to the invention For example, in the prior art according to DE 20 2004 015 535 U1 to Be used. The same applies to other types of technical applications, in which gas springs usually to be used. The subject of the invention is therefore not on a mechanical device for lifting a resting on Eckrungen Badger a commercial vehicle construction limited, but rather universal used.
- 11
- mechanische Vorrichtungmechanical contraption
- 22
- Führungguide
- 33
- Verlängerungrenewal
- 44
- Hubgliedlifting member
- 55
- Gasfedergas spring
- 66
- unterer Verlagerungsbereichlower displacement area
- 77
- dachseitiger Anbindungsbereichroof-side connecting region
- 88th
- äußerer Zylindermantelouter cylinder jacket
- 99
- Führungguide
- 1010
- Dichtelementsealing element
- 1111
- Kolbenstangepiston rod
- 1212
- freies Endefree The End
- 1313
- Schraubenmutternut
- 1414
- Drosselbohrungthrottle bore
- 1515
- Drosselscheibethrottle disc
- 1616
- Druckraumpressure chamber
- 1717
- Anschlagelementstop element
- 17'17 '
- Anschlagelementstop element
- 1818
- Klemmelement (Klemmring)clamping element (Clamping ring)
- 18'18 '
- Klemmelement (topfartiger Klemmkörper)clamping element (cup-like clamp body)
- 1919
- Schraubenfedercoil spring
- 2020
- Auslöseelement (Auslösekolben)triggering element (Release plunger)
- 20'20 '
- Auslöseelement (Auslösekolben)triggering element (Release plunger)
- 2121
- Stützkörpersupport body
- 21'21 '
- freier Endbereichfree end
- 2222
- Dichtungpoetry
- 2323
- Führungsabschnittguide section
- 23'23 '
- Führungsabschnittguide section
- 2424
- obere Begrenzungskanteupper boundary edge
- 2525
- Klemmkonusclamping cone
- 25'25 '
- Schlitzslot
- 2626
- zylindrischer Abschnittcylindrical section
- 2727
- obere Begrenzungskanteupper boundary edge
- 2828
- freies Endefree The End
- 2929
- freies Endefree The End
- 3030
- Profilierungprofiling
- 3131
- Innenumfanginner circumference
Claims (10)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005063308A DE102005063308A1 (en) | 2005-05-04 | 2005-05-04 | safety device |
EP06009128A EP1719931A1 (en) | 2005-05-04 | 2006-05-03 | Gas spring and safety device at a mechanical device for lifting roof of commercial vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005063308A DE102005063308A1 (en) | 2005-05-04 | 2005-05-04 | safety device |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005021379B3 true DE102005021379B3 (en) | 2006-11-16 |
Family
ID=37295632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200510021379 Expired - Fee Related DE102005021379B3 (en) | 2005-05-04 | 2005-05-04 | Gas spring for e.g. vehicle construction has guidance within cylinder sleeve, which carries piston rod whereby throttle disc is in active connection with piston rod and is relatively movable within pressure chamber, filled with gas |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102005021379B3 (en) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2540402A1 (en) * | 1975-09-11 | 1977-03-24 | Stabilus Gmbh | GAS SPRING WITH MECHANICAL LOCKING |
DE3040483A1 (en) * | 1980-10-28 | 1982-06-16 | Stabilus Gmbh, 5400 Koblenz | GAS SPRING WITH HYDRAULIC BLOCKING |
DE3301266A1 (en) * | 1983-01-17 | 1984-07-19 | Stabilus Gmbh, 5400 Koblenz | Gas spring having hydraulic or pneumatic damping as a push-in lock in the event of pressure loss |
DE2855560C2 (en) * | 1978-12-22 | 1987-10-01 | Stabilus Gmbh, 5400 Koblenz, De | |
DE4033185A1 (en) * | 1990-10-19 | 1992-04-23 | Stabilus Gmbh | Gas, spring with integrated mechanical safety device - has displaceable piston arranged in cylindrical pressure container |
DE3617726C2 (en) * | 1985-05-28 | 1997-01-16 | Airax Sa | Pneumatic spring shock absorber |
DE19842844C1 (en) * | 1998-04-29 | 2000-02-03 | Hesterberg & Soehne Gmbh & Co | Mechanical device for lifting roof of commercial vehicle |
DE10062243C1 (en) * | 2000-12-14 | 2002-06-06 | Knott S P A | Gas spring has mechanical safety device for blocking movement of sliding piston rod upon failure of gas pressure |
DE202004015535U1 (en) * | 2004-10-07 | 2004-12-02 | Innotec Forschungs- Und Entwicklungs-Gmbh | Motor vehicle has spring damper combination for the tailgate comprises elastic spring and two chamber fluid damper with piston and throttle between chambers |
-
2005
- 2005-05-04 DE DE200510021379 patent/DE102005021379B3/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2540402A1 (en) * | 1975-09-11 | 1977-03-24 | Stabilus Gmbh | GAS SPRING WITH MECHANICAL LOCKING |
DE2855560C2 (en) * | 1978-12-22 | 1987-10-01 | Stabilus Gmbh, 5400 Koblenz, De | |
DE3040483A1 (en) * | 1980-10-28 | 1982-06-16 | Stabilus Gmbh, 5400 Koblenz | GAS SPRING WITH HYDRAULIC BLOCKING |
DE3301266A1 (en) * | 1983-01-17 | 1984-07-19 | Stabilus Gmbh, 5400 Koblenz | Gas spring having hydraulic or pneumatic damping as a push-in lock in the event of pressure loss |
DE3617726C2 (en) * | 1985-05-28 | 1997-01-16 | Airax Sa | Pneumatic spring shock absorber |
DE4033185A1 (en) * | 1990-10-19 | 1992-04-23 | Stabilus Gmbh | Gas, spring with integrated mechanical safety device - has displaceable piston arranged in cylindrical pressure container |
DE19842844C1 (en) * | 1998-04-29 | 2000-02-03 | Hesterberg & Soehne Gmbh & Co | Mechanical device for lifting roof of commercial vehicle |
DE10062243C1 (en) * | 2000-12-14 | 2002-06-06 | Knott S P A | Gas spring has mechanical safety device for blocking movement of sliding piston rod upon failure of gas pressure |
DE202004015535U1 (en) * | 2004-10-07 | 2004-12-02 | Innotec Forschungs- Und Entwicklungs-Gmbh | Motor vehicle has spring damper combination for the tailgate comprises elastic spring and two chamber fluid damper with piston and throttle between chambers |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
8364 | No opposition during term of opposition | ||
R082 | Change of representative |
Representative=s name: BUNGARTZ CHRISTOPHERSEN PARTNERSCHAFT MBB PATE, DE |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |