DE9109020U1 - Cylinder tube end cap for a vibration damper - Google Patents
Cylinder tube end cap for a vibration damperInfo
- Publication number
- DE9109020U1 DE9109020U1 DE9109020U DE9109020U DE9109020U1 DE 9109020 U1 DE9109020 U1 DE 9109020U1 DE 9109020 U DE9109020 U DE 9109020U DE 9109020 U DE9109020 U DE 9109020U DE 9109020 U1 DE9109020 U1 DE 9109020U1
- Authority
- DE
- Germany
- Prior art keywords
- cylinder tube
- protective bellows
- vibration damper
- piston rod
- end cap
- 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 - Lifetime
Links
- 230000001681 protective effect Effects 0.000 claims description 47
- 238000013016 damping Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000000254 damaging effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
- F16F9/3242—Constructional features of cylinders of cylinder ends, e.g. caps
-
- 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
- B60G13/001—Arrangements for attachment of dampers
-
- 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
- B60G15/067—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit
- B60G15/068—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit specially adapted for MacPherson strut-type suspension
-
- 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
-
- 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
-
- 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
- B60G2204/124—Mounting of coil springs
- B60G2204/1242—Mounting of coil springs on a damper, e.g. MacPerson strut
-
- 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
- B60G2204/128—Damper mount on vehicle body or chassis
-
- 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
- B60G2204/418—Bearings, e.g. ball or roller bearings
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Description
ANR 1 001 485 Reg.-Nr. 13ANR 1 001 485 Reg. No. 13
Die Erfindung betrifft einen Schwingungsdämpfer, umfassend ein Dämpfmittel gefülltes Zylinderrohr, in dem ein an einer axial beweglichen Kolbenstange befestigter Kolben einen Arbeitsraum zweiteilt, eine Kolbenstangenführung mit einer Kolbenstangendichtung, jeweils einem AnschIußorgan an der Kolbenstange und am Zylinder, einem elastischen Puffer konzentrisch zur Kolbenstange innerhalb eines Schutzbalges, einer ZyIinderrohrendkappe an der Kolbenstangenaustrittsseite des Zylinderrohres.The invention relates to a vibration damper comprising a cylinder tube filled with damping agent, in which a piston attached to an axially movable piston rod divides a working space into two, a piston rod guide with a piston rod seal, a connecting element on the piston rod and on the cylinder, an elastic buffer concentric to the piston rod within a protective bellows, a cylinder tube end cap on the piston rod outlet side of the cylinder tube.
Schwingungsdämpfer sind aufgrund ihrer Einbaulage in einem Kraftfahrzeug aggressiven Umwelteinflüssen in Form von Feuchtigkeit, Schmutz, Steinschlag oder Salznebel ausgesetzt. Abhilfe für die besonders empfindliche Kolbenstange kann z.B. ein Schutzbalg erzielen, der die Kolbenstange einhüllt. Gleichzeitig kann ein Schutzbalg schädigende Auswirkungen auf den Schwingungsdämpfer ausüben, wenn der Schutzbalgrand am Behälterrohr oder am Federteller schabt und daß es an diesen Stellen zur Rostbildung kommt.Due to their installation position in a motor vehicle, vibration dampers are exposed to aggressive environmental influences in the form of moisture, dirt, stone chips or salt spray. A protective bellows that covers the piston rod can provide relief for the particularly sensitive piston rod. At the same time, a protective bellows can have damaging effects on the vibration damper if the edge of the protective bellows scrapes against the container pipe or the spring plate and rust forms at these points.
Die DE-PS 3049 059 zeigt einen Schutzbalg, der mit Hilfe einer Schelle am Behälterrohr des Schwingungsdämpfers fixiert wird, eine für eine Großserienproduktion hinsichtlich der Montagezeiten nicht akzeptable FertigungsIösung.DE-PS 3049 059 shows a protective bellows that is fixed to the container pipe of the vibration damper using a clamp, a manufacturing solution that is not acceptable for large-scale production in terms of assembly times.
In der DE-PS 2834 528 wird ein Schutzbalg beschrieben, der am Behälterrohrende unter eine umlaufende Kante des Federtellers geknöpft wird. Daraus ergeben sich die Nachteile, daß sich der Anschlagpuffer außerhalb des Schutzbalges befindet, der Federteller nicht optimal bezüglich Materialaufwand und Festigkeit gestaltet werden kann und vor allem, daß die Schutzbalgbefestigung nur bei Federbeinen möglich ist. Bezüglich des elastischen Puffers ist noch anzumerken, daß sich dieser im Fall des Anschlagens auf den Federteller abstützt und diesen damit besonders hoch belastet.DE-PS 2834 528 describes a protective bellows that is buttoned onto the end of the container pipe under a peripheral edge of the spring plate. This results in the disadvantages that the stop buffer is located outside the protective bellows, the spring plate cannot be designed optimally in terms of material expenditure and strength and, above all, that the protective bellows can only be attached to spring struts. Regarding the elastic buffer, it should also be noted that in the event of an impact, it rests on the spring plate and thus places a particularly high load on it.
Ein anderes Prinzip stellt die Fig. 1 der EP 0 006 036 dar, bei der der Schutzbalg aus einem Endkappenteil und einem Faltenteil besteht. Nachteilig an dieser Konstruktion ist, daß die Kolbenstange nur teilweise vom Faltenbalg umhüllt wird. Am Schutzbalg selbst besteht die Schwierigkeit, diesen aufgrund der großen Wandstärkenunterschiede zwischen Kappenteil und Faltenteil und oberer Dichtlippe fertigungstechnisch zuverlässig herzustellen. Als weiteren negativen Kritikpunkt ist die fehlende Anschlagfläche für einen elastischen Puffer zu nennen.Another principle is shown in Fig. 1 of EP 0 006 036, in which the protective bellows consists of an end cap part and a fold part. The disadvantage of this design is that the piston rod is only partially covered by the fold part. The protective bellows itself is difficult to manufacture reliably due to the large differences in wall thickness between the cap part and fold part and the upper sealing lip. Another negative point of criticism is the lack of a stop surface for an elastic buffer.
Aufgabe der vorliegenden Erfindung ist es, unter Berücksichtigung des Fertigungsaufwandes eine Schutzbalgverbindung zylinderrohrseitig zu realisieren, die die genannten Nachteile des Standes der Technik vermeidet.The object of the present invention is to realize a protective bellows connection on the cylinder tube side, taking into account the manufacturing effort, which avoids the aforementioned disadvantages of the prior art.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, indem eine ZyIinderrohrendkappe eine ebene Anschlagfläche in einem definierten Abstand oberhalb der Kolbenstangenaustrittsseite des Zylinderrohres besitzt, wobei die ZyIinderrohrendkappe einen hü Isenförmigen Trägerabschnitt mit mindestens einem diametral zur Anschlagfläche angebrachten SchutzbaIghaI tee Iement enthält, wobei die Anschlagfläche, der hü Isenförmige Trägerabschnitt, mit dem SchutzbaIghaI tee Iement einteilig ausgebildet ist.According to the invention, the object is achieved in that a cylinder tube end cap has a flat stop surface at a defined distance above the piston rod outlet side of the cylinder tube, wherein the cylinder tube end cap contains a sleeve-shaped support section with at least one protective bellows retaining element attached diametrically to the stop surface, wherein the stop surface, the sleeve-shaped support section, is formed in one piece with the protective bellows retaining element.
In weiterer vorteilhafter Ausgestaltung der Erfindung besitzt das Schutzbalghaltelement einen umlaufenden Ring an einer Außenmantelfläche des Trägerabschnittes mit einem trapezförmigen Querschnitt. Alternativ dazu besitzt eine Ausführungsvariante ein SchutzbaIghaI tee Iement mit einem kreisförmigen Stützring. Zur Entlüftung eines SchutzbaIginnenraums enthält die ZyIinderrohrendkappe vorteilhafterweise Entlüftungsverbindungen zur Schutzbalgumgebung, wobei diese Entlüftungsverbindung aus mindestens einem Langloch in einem hü Isenförmigen Trägerabschnitt besteht. In weiterer Ausgestaltung der Erfindung sind mehrere Langlöcher so angeordnet, daß das SchutzbaIghaI tee Iement in mehrere SchutzbaIghaItesegmente unterteilt wird. Erfindungsgemäß sind an einer Innenmantelfläche der ZyIinderrohrendkappe Klemmrippen angebracht, wobei die Klemmrippen einen unmittelbaren Kontakt zum Zylinderrohr aufweisen. Vorteilhafterweise besitzen die Klemmrippen an einem der Anschlagfläche abgewandten Ende Auffädelungsschrägen zur Montageerleichterung. Zur Erzielung einer möglichst hohen Belastbarkeitsgrenze der ZyIinderrohrendkappe laufen die Klemmrippen an einer Kehrseite der Anschlagfläche aus. In konsequenter Weiterführung dieses Gedankens besitzen ein SchutzbaIghaItesegment mit jeweils einer Klemmrippe eine zur Dämpfer Iängsachse parallel verlaufenden Symmetrieachse. Als weitere Montagehilfe ist an der Innenmantelfläche des hü Isenförmigen Trägerabschnittes im Bereich des SchutzbaIghaIteelementes eine Montagefase angebracht.In a further advantageous embodiment of the invention, the protective bellows retaining element has a circumferential ring on an outer surface of the support section with a trapezoidal cross-section. Alternatively, a variant has a protective bellows retaining element with a circular support ring. To ventilate the interior of a protective bellows, the cylinder tube end cap advantageously contains vent connections to the protective bellows environment, with this vent connection consisting of at least one elongated hole in a sleeve-shaped support section. In a further embodiment of the invention, several elongated holes are arranged in such a way that the protective bellows retaining element is divided into several protective bellows retaining segments. According to the invention, clamping ribs are attached to an inner surface of the cylinder tube end cap, with the clamping ribs having direct contact with the cylinder tube. Advantageously, the clamping ribs have threading bevels on one end facing away from the stop surface to facilitate assembly. To achieve the highest possible load limit for the cylinder tube end cap, the clamping ribs run out on the reverse side of the stop surface. In a logical continuation of this idea, a protective bellows holding segment with one clamping rib each has an axis of symmetry that runs parallel to the longitudinal axis of the damper. As a further assembly aid, an assembly bevel is attached to the inner surface of the sleeve-shaped support section in the area of the protective bellows holding element.
Anhand der folgenden Figurenbeschreibung soll die Erfindung näher erläutert und weitere Vorteile aufgezeigt werden. Es zeigtThe following description of the figures is intended to explain the invention in more detail and to demonstrate further advantages. It shows
Fig. 1 eine ZyIinderrohrendkappe innerhalb eines Federbeins; Fig. 2, 3 ZyIinderrohrendkappe als Einzelteil;Fig. 1 a cylinder tube end cap within a spring strut; Fig. 2, 3 cylinder tube end cap as a single part;
Fig. 4 ZyIinderrohrendkappe mit kreisringförmigem Stützring innerhalb eines Federbeins.Fig. 4 Cylinder tube end cap with circular support ring inside a spring strut.
Die Fig. 1 zeigt einen Schwingungsdämpfer (1), in diesem Fall als Federbein ausgeführt, der einerseits über eine Kolbenstange (2) mit einer Fahrzeugkarosserie (3) und andererseits mit einer nicht dargestellten Achskonstruktion verbunden ist, wobei sich die jeweiligen Anlenkpunkte relativ zueinander bewegen können. Eine Fahrzeugtragfeder (4) ist zwischen einem zyIinderrohrseitigen Federteller (5) und einem karosserieseitigen Federteller (6) verspannt. Ein konzentrisch zur Kolbenstange (2) montierter elastischer Puffer (7) steht in Ruhelage zur Karosserie (3) und dient als Zusatzfeder im letzten Kennlinienbereich der Fahrzeugtragfeder (4). Ein Schutzbalg (8) umhüllt die Kolbenstange (2) mit dem elastischen Puffer (7). Ein Dämpfelement (9) besteht aus einem dämpfmediumgefüI I ten Zylinderrohr (10), einem nicht dargestellten Kolben nebst DrosseIeinr&iacgr;chtung an der innerhalb einer Kolbenstangenführung (11), einem Arbeitsraum zweiteilend, wobei dieser von der Kolbenstangenführung (11) zyIinderrohrendseitig verschlossen wird. Das Zylinderrohr (12) wird von einer ZyIinderrohrendkappe (13) ummantelt. Diese ZyIinderrohrendkappe (13) hält mit einem umlaufenden Ring (14) das untere Ende des Schutzbalges (8). Zur Entlüftung eines SchutzbaIginnenraumes (15) dienen Langlöcher (16), die geräuschoptimiert ausgeführt sind und ein SchutzbaIghaI teelement (17) in einzelne SchutzbaIghaItesegmente (18) unterteilt. Des weiteren besitzt die ZyIinderrohrendkappe (13) eine Anschlagfläche (19) für den elastischen Puffer (7). Durch die Anordnung des elastischen Puffers (7) innerhalb des Schutzbalges (8) ist dieser besonders gut geschützt und gleichzeitig kann er sich auf die Anschlagfläche (19) der ZyIinderrohrendkappe (13) abstützen, ohne den Federteller (5) zu belasten. Die ZyIinderrohrendkappe (13) stützt sich am Zylinderrohrende (12) ab. Bei diesem AusführungsbeispieI ist das Zylinderrohrende (12) segmentweise verrollt. Die unverrollten Stege (20) mit ihren Stirnflächen (21) tragen die ZyIinderrohrendkappe (13) auf der Kehrseite (22) der Anschlagfläche (19).Fig. 1 shows a vibration damper (1), in this case designed as a spring strut, which is connected on the one hand to a vehicle body (3) via a piston rod (2) and on the other hand to an axle structure (not shown), whereby the respective articulation points can move relative to one another. A vehicle suspension spring (4) is braced between a cylinder tube-side spring plate (5) and a body-side spring plate (6). An elastic buffer (7) mounted concentrically to the piston rod (2) is in the rest position relative to the body (3) and serves as an additional spring in the last characteristic curve area of the vehicle suspension spring (4). A protective bellows (8) encloses the piston rod (2) with the elastic buffer (7). A damping element (9) consists of a cylinder tube (10) filled with damping medium, a piston (not shown) and a throttle device on the inside of a piston rod guide (11), dividing a working chamber into two, which is closed by the piston rod guide (11) at the cylinder tube end. The cylinder tube (12) is covered by a cylinder tube end cap (13). This cylinder tube end cap (13) holds the lower end of the protective bellows (8) with a surrounding ring (14). Elongated holes (16) are used to ventilate the interior of the protective bellows (15), which are designed to be noise-optimized and divide a protective bellows holding element (17) into individual protective bellows holding segments (18). Furthermore, the cylinder tube end cap (13) has a stop surface (19) for the elastic buffer (7). The arrangement of the elastic buffer (7) within the protective bellows (8) means that it is particularly well protected and at the same time it can rest on the stop surface (19) of the cylinder tube end cap (13) without putting any strain on the spring plate (5). The cylinder tube end cap (13) rests on the cylinder tube end (12). In this example, the cylinder tube end (12) is rolled in segments. The unrolled webs (20) with their end faces (21) support the cylinder tube end cap (13) on the reverse side (22) of the stop surface (19).
Die Fig. 2 und 3 gibt eine Gesamtdarstellung einer Zylinderrohrendkappe (13). Im wesentlichen besteht diese aus einem hü I senförmigen Trägerabschnitt (23), einem SchutzbaIghaI tee Iement (17) sowie einer Anschlagfläche (19), wobei alle Komponenten in einem Bauteil zusammengefaßt sind. Als Vorteil ergibt sich daraus eine denkbar einfache Montage, was gerade bei einem Großserienprodukt ein entscheidender Vorteil ist.Figures 2 and 3 show an overall view of a cylinder tube end cap (13). This essentially consists of a sleeve-shaped support section (23), a protective bellows retaining element (17) and a stop surface (19), with all components combined in one component. The advantage of this is that it is extremely easy to assemble, which is a decisive advantage, especially for a mass-produced product.
An der Innenmantelfläche (24) des hü Isenförmigen Trägerabschnittes (23) sind Klemmrippen (25) angeordnet. Diese bilden mit einer Zylinderrohraußenwand (26) - siehe Fig. 1 und 4 eine leichte Preßpassung. Die Klemmrippen (25) erfüllen außerdem die Funktion einer Vergrößerung der Entlüftungsverbindung (27) aufgrund des Abstandes zwischen einer TrägerabschnittinnenmanteIflache (24) und der Zylinderrohraußenwand (26). Die Klemmrippen (25) und die SchutzbaIghaItesegmente (18) besitzen eine gemeinsame Symmetrieachse (28). Als Folge ergibt sich eine vorteilhafte Materialverteilung im Bereich der größten Belastung auf den Trägerabschnitt (23). Bei einseitig auftretender Belastung beim Einfederungsvorgang bieten die SchutzbaIghaItesegmente (18) die Möglichkeit einer geringen Elastizität gegenüber dem Trägerabschnitt (23), ohne diesen dabei zu verformen. Die SchutzbaIghaItesegmente (18) besitzen einen trapezförmigen Querschnitt (29) und bieten eine sichere Verbindung zum Schutzbalg (8). Zur Montageerleichterung ist an der Innenmantelfläche (24) des Trägerabschnittes (23) im Bereich der SchutzbaIghaItesegmente (18) eine Montagefase (30) angebracht. Die Klemmrippen (25) besitzen zum gleichen Zweck Auffädelungsschrägen (31).Clamping ribs (25) are arranged on the inner surface (24) of the sleeve-shaped support section (23). These form a slight press fit with a cylinder tube outer wall (26) - see Fig. 1 and 4. The clamping ribs (25) also serve the function of enlarging the vent connection (27) due to the distance between a support section inner surface (24) and the cylinder tube outer wall (26). The clamping ribs (25) and the protective bellows holding segments (18) have a common axis of symmetry (28). This results in an advantageous material distribution in the area of the greatest load on the support section (23). If the load occurs on one side during the compression process, the protective bellows holding segments (18) offer the possibility of a slight elasticity compared to the support section (23) without deforming it. The protective bellows holding segments (18) have a trapezoidal cross-section (29) and provide a secure connection to the protective bellows (8). To facilitate assembly, an assembly bevel (30) is attached to the inner surface (24) of the support section (23) in the area of the protective bellows holding segments (18). The clamping ribs (25) have threading bevels (31) for the same purpose.
Die ZyIinderrohrendkappe (13) läßt sich zu einem geringen Stückpreis aus Kunststoff spanlos herstellen, besitzt ein geringes Gewicht und kann unabhängig von der Dämpferausführung, ob mit oder ohne Federteller angewendet werden. Für verschiedene Dämpfergrößen paßt man nur den Innendurchmesser an.The cylinder tube end cap (13) can be manufactured from plastic without cutting at a low unit price, is lightweight and can be used regardless of the damper design, whether with or without a spring plate. For different damper sizes, only the inner diameter needs to be adjusted.
Fig. 4 entspricht in allen wesentlichen Punkten den Fig. 1 bis 3. Abweichend ist nur das SchutzbaIghaI tee Iement (17) als ein kreisringförmiger Stützring (32) zu nennen. Als Vorteil daraus ergibt sich, daß die ZyIinderrohrendkappe (13) an dem Schutzba Igha I tee I ement (17) nur beim Einfederungsvorgang des Fahrzeuges unter Belastung steht.Fig. 4 corresponds in all essential points to Fig. 1 to 3. The only difference is that the protective bellows element (17) is a circular ring-shaped support ring (32). The advantage of this is that the cylinder tube end cap (13) on the protective bellows element (17) is only under load during the vehicle's compression process.
FRP Kr/Br
29.05.91FRP Kr/Br
29.05.91
Claims (10)
29.05.91FRP Kr/Br
29.05.91
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9109020U DE9109020U1 (en) | 1991-07-22 | 1991-07-22 | Cylinder tube end cap for a vibration damper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9109020U DE9109020U1 (en) | 1991-07-22 | 1991-07-22 | Cylinder tube end cap for a vibration damper |
Publications (1)
Publication Number | Publication Date |
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DE9109020U1 true DE9109020U1 (en) | 1991-10-17 |
Family
ID=6869521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE9109020U Expired - Lifetime DE9109020U1 (en) | 1991-07-22 | 1991-07-22 | Cylinder tube end cap for a vibration damper |
Country Status (1)
Country | Link |
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DE (1) | DE9109020U1 (en) |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5301777A (en) * | 1991-07-22 | 1994-04-12 | Fichtel & Sachs Ag | Combination of a vibration damper and a cap member |
DE4307445A1 (en) * | 1993-03-10 | 1994-09-15 | Bayerische Motoren Werke Ag | Spring arrangement on a damping cylinder |
US5402868A (en) * | 1991-11-28 | 1995-04-04 | Fichtel & Sachs Ag | Container piston device |
DE4408406A1 (en) * | 1994-03-12 | 1995-09-14 | Fichtel & Sachs Ag | Vibration damper with protective bellows |
FR2719351A1 (en) * | 1994-04-29 | 1995-11-03 | Fichtel & Sachs Ag | Air spring, in particular combined with a shock absorber for a vehicle suspension. |
DE19641728C2 (en) * | 1996-10-10 | 2002-06-27 | Zf Sachs Ag | Suspension strut with a bellows attachment |
DE10138196C1 (en) * | 2001-08-03 | 2002-10-31 | Zf Sachs Ag | Additional cylinder sealing system for damper or shock absorber has cap shaped fitting with sealing lips and additional sealing elements contacting sides of piston rod |
DE10122796A1 (en) * | 2001-05-11 | 2002-12-05 | Zf Sachs Ag | Vibration damper has corrugated protective sleeve which fits around piston rod, into which buffer fits, above end cap, sleeve, buffer and cap forming pre-assembled unit |
FR2836533A1 (en) * | 2002-02-27 | 2003-08-29 | Zf Sachs Ag | Shock absorber for suspension of chassis of utility vehicle, has stop cap with axially extending web with thickened end which supports rolling tube concentrically with respect to container tube |
FR2847324A1 (en) | 2002-11-15 | 2004-05-21 | Zf Sachs Ag | Protection bellows retaining casing comprises socket shaped base body having bellows retaining segment against which bellows is supported and spring able to move relative to casing penetrating into casing mounting space |
EP1842701A1 (en) | 2006-04-07 | 2007-10-10 | Ford Global Technologies, LLC | Strut mount assembly |
DE102009016210A1 (en) * | 2009-04-03 | 2010-10-14 | Volkswagen Ag | Vibration damper e.g. twin-tube vibration damper, for use in motor vehicle, has protective cap attached to container tube, and insert body provided for axial length adjustment between container tube and protective cap and arranged in cap |
EP2070738A3 (en) * | 2007-12-11 | 2010-11-03 | ZF Friedrichshafen AG | Piston-cylinder generator with piston rod protection |
WO2010145900A1 (en) * | 2009-06-17 | 2010-12-23 | Zf Friedrichshafen Ag | Piston-cylinder unit |
DE102009030591A1 (en) * | 2009-06-26 | 2011-02-17 | Volkswagen Ag | Damper cap for vibration damper of wheel suspension of motor vehicle, has vent holes connecting accommodating chamber with outer periphery of container pipe, where cap is sealed with respect to pipe against passage of oil |
DE102010018044A1 (en) * | 2010-04-23 | 2011-10-27 | Thyssenkrupp Bilstein Suspension Gmbh | stop cap |
DE102011102466A1 (en) * | 2010-11-26 | 2012-05-31 | Volkswagen Aktiengesellschaft | Damper for a motor vehicle |
US20120292842A1 (en) * | 2011-05-17 | 2012-11-22 | E I Du Pont De Nemours And Company | Jounce bumper |
WO2015158698A1 (en) * | 2014-04-15 | 2015-10-22 | Thyssenkrupp Bilstein Gmbh | Assembly for receiving a suspension spring of a suspension strut, and associated spring seat |
US20150328947A1 (en) * | 2012-12-26 | 2015-11-19 | Toyota Jidosha Kabushiki Kaisha | Vehicle suspension apparatus and method of assembling vehicle suspension apparatus |
DE102014213712A1 (en) * | 2014-07-15 | 2016-01-21 | Zf Friedrichshafen Ag | Vibration damper with a clamping cap |
US20160084336A1 (en) * | 2014-09-22 | 2016-03-24 | Toyota Jidosha Kabushiki Kaisha | Bump stopper cap |
WO2017010254A1 (en) * | 2015-07-16 | 2017-01-19 | Kyb株式会社 | Bump stopper and shock damper |
EP3260731A1 (en) | 2016-06-21 | 2017-12-27 | BeijingWest Industries Co. Ltd. | Hydraulic damper with a piston rod protective tube |
DE102019215746A1 (en) * | 2019-10-14 | 2020-11-19 | Zf Friedrichshafen Ag | Damper device for a motor vehicle having at least one vehicle wheel and a body |
-
1991
- 1991-07-22 DE DE9109020U patent/DE9109020U1/en not_active Expired - Lifetime
Cited By (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5301777A (en) * | 1991-07-22 | 1994-04-12 | Fichtel & Sachs Ag | Combination of a vibration damper and a cap member |
US5402868A (en) * | 1991-11-28 | 1995-04-04 | Fichtel & Sachs Ag | Container piston device |
DE4307445A1 (en) * | 1993-03-10 | 1994-09-15 | Bayerische Motoren Werke Ag | Spring arrangement on a damping cylinder |
DE4408406A1 (en) * | 1994-03-12 | 1995-09-14 | Fichtel & Sachs Ag | Vibration damper with protective bellows |
FR2719351A1 (en) * | 1994-04-29 | 1995-11-03 | Fichtel & Sachs Ag | Air spring, in particular combined with a shock absorber for a vehicle suspension. |
DE19641728C2 (en) * | 1996-10-10 | 2002-06-27 | Zf Sachs Ag | Suspension strut with a bellows attachment |
DE10122796B4 (en) * | 2001-05-11 | 2006-03-09 | Zf Sachs Ag | Piston-cylinder unit with a bellows |
DE10122796A1 (en) * | 2001-05-11 | 2002-12-05 | Zf Sachs Ag | Vibration damper has corrugated protective sleeve which fits around piston rod, into which buffer fits, above end cap, sleeve, buffer and cap forming pre-assembled unit |
DE10138196C1 (en) * | 2001-08-03 | 2002-10-31 | Zf Sachs Ag | Additional cylinder sealing system for damper or shock absorber has cap shaped fitting with sealing lips and additional sealing elements contacting sides of piston rod |
FR2836533A1 (en) * | 2002-02-27 | 2003-08-29 | Zf Sachs Ag | Shock absorber for suspension of chassis of utility vehicle, has stop cap with axially extending web with thickened end which supports rolling tube concentrically with respect to container tube |
DE10253221B3 (en) * | 2002-11-15 | 2004-08-26 | Zf Sachs Ag | Holding cap for a protective covering |
US6905006B2 (en) | 2002-11-15 | 2005-06-14 | Zf Sachs Ag | Retaining cap for a protective bellows |
FR2847324A1 (en) | 2002-11-15 | 2004-05-21 | Zf Sachs Ag | Protection bellows retaining casing comprises socket shaped base body having bellows retaining segment against which bellows is supported and spring able to move relative to casing penetrating into casing mounting space |
EP1842701A1 (en) | 2006-04-07 | 2007-10-10 | Ford Global Technologies, LLC | Strut mount assembly |
US8418821B2 (en) | 2007-12-11 | 2013-04-16 | Zf Friedrichshafen Ag | Piston-cylinder unit with piston rod protector |
EP2070738A3 (en) * | 2007-12-11 | 2010-11-03 | ZF Friedrichshafen AG | Piston-cylinder generator with piston rod protection |
DE102009016210A1 (en) * | 2009-04-03 | 2010-10-14 | Volkswagen Ag | Vibration damper e.g. twin-tube vibration damper, for use in motor vehicle, has protective cap attached to container tube, and insert body provided for axial length adjustment between container tube and protective cap and arranged in cap |
WO2010145900A1 (en) * | 2009-06-17 | 2010-12-23 | Zf Friedrichshafen Ag | Piston-cylinder unit |
DE102009025142A1 (en) | 2009-06-17 | 2010-12-30 | Zf Friedrichshafen Ag | Piston-cylinder assembly |
DE102009030591A1 (en) * | 2009-06-26 | 2011-02-17 | Volkswagen Ag | Damper cap for vibration damper of wheel suspension of motor vehicle, has vent holes connecting accommodating chamber with outer periphery of container pipe, where cap is sealed with respect to pipe against passage of oil |
DE102009030591B4 (en) * | 2009-06-26 | 2015-05-13 | Zf Friedrichshafen Ag | Damper cap of a vibration damper |
WO2011131282A1 (en) * | 2010-04-23 | 2011-10-27 | Thyssenkrupp Bilstein Suspension Gmbh | Stop cap |
US9752640B2 (en) | 2010-04-23 | 2017-09-05 | Thyssenkrupp Bilstein Gmbh | Stop cap |
CN102959272A (en) * | 2010-04-23 | 2013-03-06 | 蒂森克虏伯比尔施泰因悬浮有限责任公司 | Stop cap |
DE102010018044A1 (en) * | 2010-04-23 | 2011-10-27 | Thyssenkrupp Bilstein Suspension Gmbh | stop cap |
CN102959272B (en) * | 2010-04-23 | 2015-04-08 | 蒂森克虏伯比尔施泰因悬浮有限责任公司 | Stop cap |
EP2643612B1 (en) | 2010-11-26 | 2015-03-04 | Volkswagen Aktiengesellschaft | Damper for a motor vehicle |
DE102011102466A1 (en) * | 2010-11-26 | 2012-05-31 | Volkswagen Aktiengesellschaft | Damper for a motor vehicle |
US20120292842A1 (en) * | 2011-05-17 | 2012-11-22 | E I Du Pont De Nemours And Company | Jounce bumper |
US9446647B2 (en) * | 2012-12-26 | 2016-09-20 | Toyota Jidosha Kabushiki Kaisha | Vehicle suspension apparatus and method of assembling vehicle suspension apparatus |
US20150328947A1 (en) * | 2012-12-26 | 2015-11-19 | Toyota Jidosha Kabushiki Kaisha | Vehicle suspension apparatus and method of assembling vehicle suspension apparatus |
WO2015158698A1 (en) * | 2014-04-15 | 2015-10-22 | Thyssenkrupp Bilstein Gmbh | Assembly for receiving a suspension spring of a suspension strut, and associated spring seat |
US10457107B2 (en) | 2014-04-15 | 2019-10-29 | Thyssenkrupp Bilstein Gmbh | Assembly for receiving a suspension spring of a suspension strut, and associated spring seat |
DE102014213712A1 (en) * | 2014-07-15 | 2016-01-21 | Zf Friedrichshafen Ag | Vibration damper with a clamping cap |
US20160084336A1 (en) * | 2014-09-22 | 2016-03-24 | Toyota Jidosha Kabushiki Kaisha | Bump stopper cap |
US9829062B2 (en) * | 2014-09-22 | 2017-11-28 | Toyota Jidosha Kabushiki Kaisha | Bump stopper cap |
WO2017010254A1 (en) * | 2015-07-16 | 2017-01-19 | Kyb株式会社 | Bump stopper and shock damper |
EP3260731A1 (en) | 2016-06-21 | 2017-12-27 | BeijingWest Industries Co. Ltd. | Hydraulic damper with a piston rod protective tube |
US10221913B2 (en) | 2016-06-21 | 2019-03-05 | Beijingwest Industries Co., Ltd. | Hydraulic damper with a piston rod protective tube |
DE102019215746A1 (en) * | 2019-10-14 | 2020-11-19 | Zf Friedrichshafen Ag | Damper device for a motor vehicle having at least one vehicle wheel and a body |
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