DE102005029938B3 - Piston/cylinder shock absorber, with a coil spring, has a second coil spring in the spaces between its coils of a radially elastic rubber material - Google Patents
Piston/cylinder shock absorber, with a coil spring, has a second coil spring in the spaces between its coils of a radially elastic rubber material Download PDFInfo
- Publication number
- DE102005029938B3 DE102005029938B3 DE200510029938 DE102005029938A DE102005029938B3 DE 102005029938 B3 DE102005029938 B3 DE 102005029938B3 DE 200510029938 DE200510029938 DE 200510029938 DE 102005029938 A DE102005029938 A DE 102005029938A DE 102005029938 B3 DE102005029938 B3 DE 102005029938B3
- Authority
- DE
- Germany
- Prior art keywords
- coil spring
- spring
- piston
- cylinder
- 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
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
-
- 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
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/12—Attachments or mountings
- F16F1/13—Attachments or mountings comprising inserts and spacers between the windings for changing the mechanical or physical characteristics of the spring
-
- 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
- F16F1/366—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers made of fibre-reinforced plastics, i.e. characterised by their special construction from such materials
- F16F1/3665—Wound springs
-
- 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
- F16F3/12—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 the steel spring being in contact with the rubber spring
-
- 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
- F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
- F16F9/49—Stops limiting fluid passage, e.g. hydraulic stops or elastomeric elements inside the cylinder which contribute to changes in fluid damping
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
Die Erfindung betrifft eine Zusatzfeder gemäß dem Oberbegriff von Patentanspruch 1.The The invention relates to an additional spring according to the preamble of claim 1.
Die
Aus
der
Generell
sind die gewünschten
Anschlagfederkräfte
so groß,
dass eine reine mechanische Federkraft nicht ausreicht. Deshalb
werden Zusatzfedern nach dem Bauprinzip der
Die
Die
gattungsbildende
Aufgabe der vorliegenden Erfindung ist es, eine Zusatzfeder für ein Kolben-Zylinderaggregat zu realisieren, die große Kräfte gegen eine Bewegungsrichtung der Kolbenstange erzeugen kann.task The present invention is an auxiliary spring for a piston-cylinder unit to realize the big one personnel can generate against a direction of movement of the piston rod.
Erfindungsgemäß wird die Aufgabe durch die Merkmale des Patentanspruchs 1 gelöst.According to the invention Problem solved by the features of claim 1.
Der große Vorteil besteht darin, dass die zweite Schraubenfeder keine Federvolumenverluste bei der ersten Schraubenfeder mit sich bringt. Es wird auch kein zusätzlicher Bauraum benötigt. Des weiteren steht eine Vielzahl von Reibflächen zur Verfügung, da jede Einzelwindung der zweiten Schraubenfeder als eine Reibfläche zu bewerten ist und damit die erreichbare Reibkraft im Vergleich zum genannten Stand der Technik deutlich gesteigert werden kann.Of the size The advantage is that the second coil spring no spring volume losses at brings the first coil spring with it. It will not be additional Space required. Furthermore, a variety of friction surfaces is available because evaluate each individual coil of the second coil spring as a friction surface is and thus the achievable frictional force in comparison to the above State of the art can be significantly increased.
Es ergibt sich zusätzlich zu der mechanischen Reibarbeit eine hydraulische Dämpfwirkung der Schraubenfederkombination.It results in addition to the mechanical friction work a hydraulic damping effect of Coil spring combination.
Die zweite Schraubenfeder kann auch aus einem porösen Werkstoff, z. B. einem offenporigen Elastomerschaum bestehen. Bei einer derartigen Ausgestaltung kann die hydraulische Dämpfung der Schraubenfederkombination präziser den Erfordernissen angepasst werden. Insbesondere im Hinblick auf eine lange Lebensdauer ist es vorteilhaft, wenn die zweite Schraubenfeder aus einem Gummiwerkstoff besteht.The second coil spring can also be made of a porous material, for. B. one consist of open-pore elastomer foam. In such an embodiment can the hydraulic damping the coil spring combination more precise adapted to the requirements. Especially with regard to a long life, it is advantageous if the second coil spring made of a rubber material.
In weiterer vorteilhafter Ausgestaltung ist die Zusatzfeder innerhalb eines Zylinders des Kolben-Zylinderaggregates, in dem die Kolbenstange eine Axialbewegung ausführt, angeordnet. Damit besteht die Möglichkeit, dass die zweite Schraubenfeder ab ihrem Einsatzpunkt mit der Innenwandung des Zylinders und/oder der Mantelfläche der Kolbenstange in Reibkontakt tritt. Insbesondere durch den gleichzeitigen Reibkontakt mit der Kolbenstange und dem Zylinder kann die Reibkraft nochmals gesteigert werden.In a further advantageous embodiment, the additional spring within a cylinder of the piston-cylinder unit, in which the piston rod performs an axial movement, arranged. This gives the possibility that the second Schraubenfe from its point of use with the inner wall of the cylinder and / or the lateral surface of the piston rod comes into frictional contact. In particular, by the simultaneous frictional contact with the piston rod and the cylinder, the frictional force can be increased again.
Eine weitere Möglichkeit der Reibkrafterhöhung kann darin bestehen, dass die zweite Schraubenfeder mit schräg zur Längsachse des Kolben-Zylinderaggregates verlaufenden Auflageflächen für die Windungen der ersten Schraubenfeder ausgeführt ist. Die dadurch vorliegende Radialkraftkomponente bewirkt einen zusätzlichen Vorspannweg, der wiederum zu einer Reibkraft führt. Des weiteren stützt sich die erste Feder an den Auflageflächen ab, so dass ein Kontakt der ersten Schraubenfeder mit dem Zylinder oder der Kolbenstange verhindert wird. Die zweite Schraubenfeder zentriert die erste Schraubenfeder.A another possibility the Reibkrafterhöhung may be that the second coil spring obliquely to the longitudinal axis the piston-cylinder unit extending bearing surfaces for the turns the first coil spring is executed. The resulting radial force component causes an additional Vorspannweg, which in turn leads to a frictional force. Furthermore, the relies first spring on the bearing surfaces starting, allowing a contact of the first coil spring with the cylinder or the piston rod is prevented. The second coil spring centers the first coil spring.
Eine weitere Möglichkeit zur Ausnutzung der hydraulischen Dämpfwirkung kann darin bestehen, dass die zweite Schraubenfeder in Richtung einer Reibkontaktfläche des Kolben-Zylinderaggregates eine profilierte Oberfläche aufweist, das Dämpfmedium im entspannten Zustand der zweiten Feder kammert und bei Kompression abgibt.A another possibility to exploit the hydraulic damping effect may be that the second coil spring in the direction of a friction contact surface of Piston-cylinder unit has a profiled surface, the damping medium in the relaxed state of the second spring clings and in compression emits.
Gemäß einem vorteilhaften Unteranspruch weist die zweite Schraubenfeder ein Führungsprofil für die erste Schraubenfeder auf. Es soll verhindert werden, dass die erste Feder ausknickt und mit dem Kolben-Zylinderaggregat in Kontakt kommt. Eine einfache und wirkungsvolle Ausführung besteht darin, dass das Führungsprofil von einer Rinne gebildet wird.According to one advantageous subclaim has the second coil spring Leadership profile for the first Coil spring on. It should prevent the first spring kinks and comes into contact with the piston-cylinder unit. A simple and effective execution is that the guide profile is formed by a gutter.
Anhand der folgenden Figurenbeschreibung soll die Erfindung näher erläutert werden.Based The following description of the figures, the invention will be explained in more detail.
Es zeigt:It shows:
Die
Die
Zusatzfeder
Bei
einer Hubbewegung der Kolbenstange in Richtung Kolbenstangenführung kommt
der Anschlag
Durch
schräg
zur Längsachse
des Kolben-Zylinderaggregates verlaufende Auflageflächen
In
der
Bei
einer Kompression der zweiten Feder,
Aus
der Zusammenschau der
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510029938 DE102005029938B3 (en) | 2005-06-28 | 2005-06-28 | Piston/cylinder shock absorber, with a coil spring, has a second coil spring in the spaces between its coils of a radially elastic rubber material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510029938 DE102005029938B3 (en) | 2005-06-28 | 2005-06-28 | Piston/cylinder shock absorber, with a coil spring, has a second coil spring in the spaces between its coils of a radially elastic rubber material |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005029938B3 true DE102005029938B3 (en) | 2006-11-09 |
Family
ID=37111711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200510029938 Expired - Fee Related DE102005029938B3 (en) | 2005-06-28 | 2005-06-28 | Piston/cylinder shock absorber, with a coil spring, has a second coil spring in the spaces between its coils of a radially elastic rubber material |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102005029938B3 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009038266A1 (en) * | 2009-08-20 | 2011-03-03 | Sauer-Danfoss Gmbh & Co Ohg | Spring i.e. coil spring, damper system, for use in hydraulic device, has damping element fastened to spring at connecting point such that plates, arranged at damping element shift motion of fluid during deformation of spring |
WO2015055375A1 (en) * | 2013-10-14 | 2015-04-23 | Zf Friedrichshafen Ag | Method for fastening a rebound stop to a piston rod of a vibration damper |
WO2018036999A1 (en) * | 2016-08-23 | 2018-03-01 | Thyssenkrupp Bilstein Gmbh | Stop buffer for a vibration damper and a vibration damper for motor vehicles |
DE102017006374A1 (en) * | 2017-07-06 | 2019-01-10 | Stabilus Gmbh | Damper with friction body |
DE102022200733A1 (en) | 2022-01-24 | 2023-07-27 | Karl Sebert | damping arrangement |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1046237A (en) * | 1951-12-07 | 1953-12-04 | Method of damping springs, in particular coil springs, and elements for its implementation | |
FR1142615A (en) * | 1956-02-09 | 1957-09-20 | Self-absorbing suspension device | |
CH408541A (en) * | 1960-07-21 | 1966-02-28 | Math & Metrik Inc | Machine element for the transmission of linear forces |
DE1968374U (en) * | 1964-03-10 | 1967-09-14 | Karl W Dr Maier | FRICTION BUFFER. |
GB1117477A (en) * | 1965-07-23 | 1968-06-19 | Kenneth John Morris | An improved shock absorber or damper |
DE2806541A1 (en) * | 1978-02-16 | 1979-08-23 | Fichtel & Sachs Ag | SHOCK ABSORBER OR SHOCK ABSORBER WITH HYDRAULIC-MECHANICAL PUSH STOP |
EP0120005B1 (en) * | 1982-09-20 | 1989-02-01 | Ford Motor Company Limited | Shock absorber with a hydro-mechanical stop |
DE4420134C1 (en) * | 1994-06-09 | 1995-10-05 | Fichtel & Sachs Ag | Oscillation damper with mechanical traction stop |
JP2000027926A (en) * | 1998-07-14 | 2000-01-25 | Toyota Motor Corp | Shock absorber |
DE10247640A1 (en) * | 2002-10-11 | 2004-04-29 | Audi Ag | Auxiliary spring for especially shock absorber of motor vehicle has device to damp or brake rebound movement of spring, and sleeve-form spring component encompasses rod interacting with damping system |
-
2005
- 2005-06-28 DE DE200510029938 patent/DE102005029938B3/en not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1046237A (en) * | 1951-12-07 | 1953-12-04 | Method of damping springs, in particular coil springs, and elements for its implementation | |
FR1142615A (en) * | 1956-02-09 | 1957-09-20 | Self-absorbing suspension device | |
CH408541A (en) * | 1960-07-21 | 1966-02-28 | Math & Metrik Inc | Machine element for the transmission of linear forces |
DE1968374U (en) * | 1964-03-10 | 1967-09-14 | Karl W Dr Maier | FRICTION BUFFER. |
GB1117477A (en) * | 1965-07-23 | 1968-06-19 | Kenneth John Morris | An improved shock absorber or damper |
DE2806541A1 (en) * | 1978-02-16 | 1979-08-23 | Fichtel & Sachs Ag | SHOCK ABSORBER OR SHOCK ABSORBER WITH HYDRAULIC-MECHANICAL PUSH STOP |
EP0120005B1 (en) * | 1982-09-20 | 1989-02-01 | Ford Motor Company Limited | Shock absorber with a hydro-mechanical stop |
DE4420134C1 (en) * | 1994-06-09 | 1995-10-05 | Fichtel & Sachs Ag | Oscillation damper with mechanical traction stop |
JP2000027926A (en) * | 1998-07-14 | 2000-01-25 | Toyota Motor Corp | Shock absorber |
DE10247640A1 (en) * | 2002-10-11 | 2004-04-29 | Audi Ag | Auxiliary spring for especially shock absorber of motor vehicle has device to damp or brake rebound movement of spring, and sleeve-form spring component encompasses rod interacting with damping system |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009038266A1 (en) * | 2009-08-20 | 2011-03-03 | Sauer-Danfoss Gmbh & Co Ohg | Spring i.e. coil spring, damper system, for use in hydraulic device, has damping element fastened to spring at connecting point such that plates, arranged at damping element shift motion of fluid during deformation of spring |
DE102009038266A8 (en) * | 2009-08-20 | 2011-06-01 | Sauer-Danfoss Gmbh & Co Ohg | Spring-damper system |
WO2015055375A1 (en) * | 2013-10-14 | 2015-04-23 | Zf Friedrichshafen Ag | Method for fastening a rebound stop to a piston rod of a vibration damper |
US10012284B2 (en) | 2013-10-14 | 2018-07-03 | Zf Friedrichshafen Ag | Method for fastening a rebound stop to a piston rod of a vibration damper |
WO2018036999A1 (en) * | 2016-08-23 | 2018-03-01 | Thyssenkrupp Bilstein Gmbh | Stop buffer for a vibration damper and a vibration damper for motor vehicles |
DE102017006374A1 (en) * | 2017-07-06 | 2019-01-10 | Stabilus Gmbh | Damper with friction body |
DE102022200733A1 (en) | 2022-01-24 | 2023-07-27 | Karl Sebert | damping arrangement |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1832781B1 (en) | Vibration absorber | |
EP1327538B1 (en) | Airspring with an integrated control valve | |
DE19918195C1 (en) | Tension/compression buffer for rail vehicle or automobile coupling has piston element displaced from neutral position in opposite directions with hydraulic damping of its return movement | |
DE19726048A1 (en) | Vibration damper | |
DE102014210705A1 (en) | Frequency-dependent damping valve arrangement | |
DE102006005621B4 (en) | Stop spring for a piston-cylinder unit | |
DE102005029938B3 (en) | Piston/cylinder shock absorber, with a coil spring, has a second coil spring in the spaces between its coils of a radially elastic rubber material | |
EP3539841B1 (en) | Device for dampening push forces | |
EP2481945B1 (en) | Suspension device for vehicles | |
DE102014203842A1 (en) | Valve, in particular for a vibration damper | |
DE102007054902A1 (en) | Stop element for hydraulic bearings and thus equipped hydraulic bushing | |
DE102005015216B4 (en) | Damping device for linear drives | |
EP2404078B1 (en) | Damping system for impact damping | |
DE10344102B3 (en) | Spring carrier with auxiliary spring for movable components has outer contour with screw profile corresponding to rise of carrier spring | |
EP1342019B1 (en) | Spring element consisting of an elastic material, especially plastic | |
DE102014013992A1 (en) | Piston of a fluid-operated linear drive and associated linear drive | |
DE102018217373B4 (en) | Damper device and vehicle with the damper device | |
DE102004011971A1 (en) | Vibration damper comprises piston mounted in cylinder, stop system on piston rod consisting of spiral spring and plate spring mounted above it, spring rate of plate spring at its deepest point being greater than that of spiral spring | |
DE102005048942B4 (en) | Piston-cylinder unit | |
EP0961036B1 (en) | Actuation cylinder | |
DE3245732C2 (en) | Double-acting hydraulic shock absorber | |
DE102018217371B3 (en) | Damper device and vehicle with the damper device | |
DE10253020A1 (en) | Pneumatic operating device for friction clutch has pressurized surfaces of piston and cylinder with axial recess toward opposite pressurized surface | |
DE102023110915A1 (en) | vibration damper for a motor vehicle | |
DE102004023557B4 (en) | Stepless hydraulic door clamp for motor vehicle doors has diaphragm spring that provides force having maxima in between two minima during relative movement of two movable components |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
8364 | No opposition during term of opposition | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20120103 |