FR2860174A1 - Connecting unit for piston-and-cylinder unit, has overlapping profile presented between ends of sleeve and folded transversal to curved direction of sleeve with offset provided on one end, where sleeve provides space to receive another end - Google Patents
Connecting unit for piston-and-cylinder unit, has overlapping profile presented between ends of sleeve and folded transversal to curved direction of sleeve with offset provided on one end, where sleeve provides space to receive another end Download PDFInfo
- Publication number
- FR2860174A1 FR2860174A1 FR0410175A FR0410175A FR2860174A1 FR 2860174 A1 FR2860174 A1 FR 2860174A1 FR 0410175 A FR0410175 A FR 0410175A FR 0410175 A FR0410175 A FR 0410175A FR 2860174 A1 FR2860174 A1 FR 2860174A1
- Authority
- FR
- France
- Prior art keywords
- sleeve
- piston
- overlap
- cylinder unit
- connecting member
- 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.)
- Granted
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
- F16F9/54—Arrangements for attachment
-
- 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
Abstract
Description
2860174 12860174 1
L'invention concerne un organe de raccordement pour une unité à piston-etcylindre, comportant une platine à douille roulée dont les deux extrémités forment une jointure qui est refermée par un verrouillage à coopération de formes, de sorte qu'il se présente une douille fermée. The invention relates to a connecting member for a piston-cylinder unit, comprising a rolled-sleeve plate whose two ends form a seam which is closed by a interlocking locking mechanism, so that a closed socket is provided. .
On connaît du document DE 43 35 329 Al un organe de raccordement roulé pour une unité à piston-et-cylindre, qui est constitué par une lame en tôle dont la jointure est refermée par un verrouillage à coopération de formes entre les deux extrémités. Certes, l'organe de raccordement peut encaisser très bien des forces agissant en direction périphérique, mais un problème de principe de cette construction est que le verrouillage peut s'ouvrir en cas de force radiale dans la zone de la jointure. Document DE 43 35 329 A1 discloses a rolled connection member for a piston-and-cylinder unit, which is constituted by a sheet metal blade whose join is closed by a interlocking locking of shapes between the two ends. Admittedly, the connecting member can absorb very well forces acting in the peripheral direction, but a problem of principle of this construction is that the lock can open in case of radial force in the area of the joint.
Certes, on pourrait sécuriser la jointure par au moins un point de soudure, mais dans ce cas se pose alors généralement la question de la raison d'un verrouillage à coopération de formes de la jointure. De plus, le matériau de la lame en tôle devrait alors également être soudable. Admittedly, one could secure the joint by at least one weld spot, but in this case then usually raises the question of the reason for interlocking interlocking shapes. In addition, the material of the sheet metal blade should then also be weldable.
L'objectif sous-jacent à l'invention est de développer un organe de raccordement susceptible d'être fabriqué à partir d'une lame en tôle roulée, de telle sorte que même des forces agissant radialement peuvent être encaissées de façon fiable. The objective underlying the invention is to develop a connection member that can be made from a rolled sheet metal blade, so that even radially acting forces can be reliably collected.
Conformément à l'invention, cet objectif est atteint par le fait qu'un chevauchement se présente entre les deux extrémités, qui s'étend en direction périphérique et qui est mis en forme pour réaliser le verrouillage. According to the invention, this object is achieved by the fact that an overlap occurs between the two ends, which extends in the peripheral direction and is shaped to achieve locking.
L'avantage de cette invention est que l'organe de raccordement peut encaisser des forces importantes dans toutes les directions. Le verrouillage mis en forme fait office de fermeture de blocage. The advantage of this invention is that the connecting member can absorb significant forces in all directions. The shaped lock acts as a locking closure.
2860174 2 Selon un autre développement avantageux, une zone d'extrémité de la platine à douille est réalisée avec un décalage radial, de sorte que la platine à douille roulée présente dans cette zone un diamètre différent et procure un espace libre pour recevoir l'autre extrémité de la platine à douille. Grâce à cette disposition, on doit atteindre un contour aussi précis que possible de l'organe de raccordement en particulier au niveau du diamètre intérieur également dans la zone du chevauchement. According to another advantageous development, an end zone of the socket plate is made with a radial offset, so that the rolled-down plate has in this zone a different diameter and provides a free space for receiving the other end of the socket plate. With this arrangement, it is necessary to achieve a contour as accurate as possible of the connecting member, particularly at the inner diameter also in the area of the overlap.
De plus, il est prévu que le chevauchement soit rabattu au moins sur une zone périphérique transversalement à la direction de courbure de la platine à douille. Dans ce cas, le rabattement du chevauchement part de l'un au moins des deux bords de la platine à douille. Lorsque l'on prévoit un rabattement sur les deux bords, celui-ci s'étend symétriquement à la ligne centrale de l'organe de raccordement, de sorte que des forces latérales provenant d'une direction quelconque peuvent bien être encaissées sans ouvrir le rabattement. In addition, it is expected that the overlap is folded at least over a peripheral zone transversely to the direction of curvature of the socket plate. In this case, the folding of the overlap starts from at least one of the two edges of the socket plate. When provision is made for folding on the two edges, it extends symmetrically to the central line of the connecting member, so that lateral forces coming from any direction can be cashed without opening the drawdown. .
Selon un autre développement avantageux, l'organe de raccordement est relié à l'unité à piston-et-cylindre au niveau du chevauchement. Même dans le cas d'une platine à douille à paroi relativement mince, on peut encore transmettre des forces élevées. According to another advantageous development, the connecting member is connected to the piston-and-cylinder unit at the level of the overlap. Even in the case of a relatively thin-walled socket plate, high forces can still be transmitted.
À titre d'autre mesure de sécurité, l'organe de raccordement est soudé sur l'unité à piston-et-cylindre, le cordon de soudure s'étendant jusque dans le verrouillage. As another safety measure, the connecting member is welded to the piston-and-cylinder unit, the weld seam extending into the lock.
En supplément, les deux extrémités de la platine à douille peuvent être moulurées au niveau du chevauchement, afin de pouvoir encaisser des forces latérales qui pourraient défaire le chevauchement, mais également pour pouvoir bien encaisser des forces radiales. In addition, both ends of the socket plate can be molded at the overlap, in order to cash lateral forces that could undo the overlap, but also to be able to cash well radial forces.
L'invention sera expliquée plus en détails dans ce qui suit en se rapportant à la description des figures. Celles-ci montrent: 2860174 3 figure 1, une vue de l'organe de raccordement sur une unité à pistonetcylindre; et - figure 2, une coupe transversale à travers l'organe de raccordement de la figure 1. The invention will be explained in more detail in the following with reference to the description of the figures. These show: FIG. 1 a view of the connecting member on a piston and cylinder unit; and - Figure 2, a cross section through the connecting member of Figure 1.
La figure 1 montre un détail d'une unité à piston-et-cylindre 1 comportant un organe de raccordement 3 dont la douille 5 est formée par une platine à douille roulée. A l'intérieur de l'organe de raccordement, on peut agencer un corps en élastomère non illustré avec ou sans amortissement par liquide. Figure 1 shows a detail of a piston-and-cylinder unit 1 having a connecting member 3, the sleeve 5 is formed by a rolled sleeve plate. Inside the connection member, a non-illustrated elastomer body can be arranged with or without liquid damping.
Un chevauchement 7 se présente entre les deux extrémités de la platine à douille. Comme on le voit, une zone d'extrémité de la platine à douille est réalisée avec un décalage radial 11, de sorte que la platine à douille roulée présente dans cette zone un diamètre différent et qu'il se forme un espace libre 13 pour recevoir l'autre extrémité 15 de la platine à douille, de sorte qu'il se présente un diamètre intérieur pratiquement constant de la douille. An overlap 7 is present between the two ends of the socket plate. As can be seen, an end zone of the socket plate is made with a radial offset 11, so that the rolled-up plate has in this zone a different diameter and a free space 13 is formed to receive the other end 15 of the socket plate, so that there is a substantially constant inner diameter of the sleeve.
La figure 2 montre une coupe transversale à travers l'organe de raccordement 3 dans la zone du chevauchement 7 qui est mis en forme pour réaliser le verrouillage 17. Dans cet exemple de réalisation, le chevauchement est rabattu au moins sur une zone périphérique transversalement à la direction de courbure de la platine à douille, le rabattement du chevauchement partant de l'un au moins des deux bords latéraux de la platine à douille. Pour parer à une fissuration, le rabattement peut commencer déjà à l'extérieur du chevauchement et se prolonger alors sous un angle de rabattement croissant. FIG. 2 shows a cross-section through the connecting member 3 in the region of the overlap 7 which is shaped to achieve locking 17. In this embodiment, the overlap is folded down at least on a peripheral zone transversely to the direction of curvature of the socket plate, the folding of the overlap from at least one of the two side edges of the socket plate. To prevent cracks, the crimping can begin already outside the overlap and then extend at an increasing crimping angle.
L'organe de raccordement 3 est relié à l'unité à piston-et-cylindre 1 et soudé sur celui-ci dans la zone du chevauchement 7, le cordon de soudure 19 s'étendant jusque dans le verrouillage. En supplément, les deux extrémités de la platine à douille peuvent être moulurées dans la zone du chevauchement 7 en direction périphérique, afin d'obtenir d'une part une rigidification de la douille 5, mais également pour pourvoir encaisser des forces transversales plus élevées. Un autre 2860174 4 avantage est qu'un caoutchouc formant articulation est retenu axialement particulièrement bien à l'intérieur de l'organe de raccordement par le profil formé par le rabattement et qu'un échappement est empêché. The connecting member 3 is connected to the piston-and-cylinder unit 1 and welded thereon in the overlap area 7, the weld bead 19 extending into the lock. In addition, both ends of the socket plate can be molded in the region of the overlap 7 in the peripheral direction, in order to obtain a stiffening of the sleeve 5, but also to provide higher transverse forces. Another advantage is that a hinge rubber is retained axially particularly well inside the connecting member by the profile formed by the crimping and an escapement is prevented.
Claims (7)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003144953 DE10344953B3 (en) | 2003-09-27 | 2003-09-27 | Connecting element for a piston-cylinder unit |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2860174A1 true FR2860174A1 (en) | 2005-04-01 |
FR2860174B1 FR2860174B1 (en) | 2006-05-26 |
Family
ID=34306121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0410175A Expired - Fee Related FR2860174B1 (en) | 2003-09-27 | 2004-09-27 | CONNECTING MEMBER FOR A PISTON-AND-CYLINDER UNIT |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE10344953B3 (en) |
FR (1) | FR2860174B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009022057A1 (en) * | 2009-05-20 | 2010-11-25 | Volkswagen Ag | Vibration damper for wheel suspensions, has container with container pipe and container base, and lug for receiving bearing, where lug is provided at container base |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE833001C (en) * | 1951-02-24 | 1952-03-03 | Hemscheidt Maschf Hermann | Housing for hydraulic telescopic vibration damper with suspension eye, especially for motor vehicles |
DE1800537U (en) * | 1959-03-05 | 1959-11-19 | Hemscheidt Maschf Hermann | HYDRAULIC VIBRATION DAMPER. |
US3286314A (en) * | 1963-01-29 | 1966-11-22 | Oetiker Hans | Method of manufacturing rings and riveted endless annular structures |
DE2324209A1 (en) * | 1973-05-12 | 1974-11-28 | Bilstein August Fa | FASTENING EYE |
JPS56160442A (en) * | 1980-05-14 | 1981-12-10 | Tokico Ltd | Manufacture of bracket for cylindrical vessel |
DE4335329A1 (en) * | 1993-10-18 | 1995-04-20 | Fichtel & Sachs Ag | Rolled bush, in particular for a vibration damper |
DE19647411C1 (en) * | 1996-11-15 | 1998-03-05 | Mannesmann Sachs Ag | Fixing bracket for vibration damper |
-
2003
- 2003-09-27 DE DE2003144953 patent/DE10344953B3/en not_active Expired - Fee Related
-
2004
- 2004-09-27 FR FR0410175A patent/FR2860174B1/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE833001C (en) * | 1951-02-24 | 1952-03-03 | Hemscheidt Maschf Hermann | Housing for hydraulic telescopic vibration damper with suspension eye, especially for motor vehicles |
DE1800537U (en) * | 1959-03-05 | 1959-11-19 | Hemscheidt Maschf Hermann | HYDRAULIC VIBRATION DAMPER. |
US3286314A (en) * | 1963-01-29 | 1966-11-22 | Oetiker Hans | Method of manufacturing rings and riveted endless annular structures |
DE2324209A1 (en) * | 1973-05-12 | 1974-11-28 | Bilstein August Fa | FASTENING EYE |
JPS56160442A (en) * | 1980-05-14 | 1981-12-10 | Tokico Ltd | Manufacture of bracket for cylindrical vessel |
DE4335329A1 (en) * | 1993-10-18 | 1995-04-20 | Fichtel & Sachs Ag | Rolled bush, in particular for a vibration damper |
DE19647411C1 (en) * | 1996-11-15 | 1998-03-05 | Mannesmann Sachs Ag | Fixing bracket for vibration damper |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 006, no. 045 (M - 118) 20 March 1982 (1982-03-20) * |
Also Published As
Publication number | Publication date |
---|---|
DE10344953B3 (en) | 2005-05-04 |
FR2860174B1 (en) | 2006-05-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20110531 |