FR2799808A1 - Shock absorber for use in car suspension has mounting at opposite end of cylinder from piston, through which piston rod passes and which has two Belleville washers mounted between cylinder and shoulder on it - Google Patents
Shock absorber for use in car suspension has mounting at opposite end of cylinder from piston, through which piston rod passes and which has two Belleville washers mounted between cylinder and shoulder on it Download PDFInfo
- Publication number
- FR2799808A1 FR2799808A1 FR9912803A FR9912803A FR2799808A1 FR 2799808 A1 FR2799808 A1 FR 2799808A1 FR 9912803 A FR9912803 A FR 9912803A FR 9912803 A FR9912803 A FR 9912803A FR 2799808 A1 FR2799808 A1 FR 2799808A1
- Authority
- FR
- France
- Prior art keywords
- cylinder
- damper
- piston
- mounting
- shoulder
- 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
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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
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
- F16F9/3242—Constructional features of cylinders of cylinder ends, e.g. caps
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Description
L'invention se rapporte<B>à</B> un amortisseur de suspension. L'invention concerne notamment un amortisseur de suspension de véhicule automobile, comportant un corps, un cylindre tubulaire disposé dans le corps, ainsi qu'un piston monté<B>à</B> l'une des extrémités d'une tige et apte<B>à</B> coulisser dans le cylindre. Classiquement, le cylindre est refermé<B>à</B> l'une de ses extrémités par un pallier de guidage de la tige. The invention relates to a suspension damper. The invention relates in particular to a motor vehicle suspension damper, comprising a body, a tubular cylinder disposed in the body, and a piston mounted at one of the ends of a rod and capable of <B> to </ B> slide in the cylinder. Conventionally, the cylinder is closed <B> at </ B> one of its ends by a bearing guide of the rod.
Les amortisseurs de véhicules sont en général soumis<B>à</B> des contraintes et efforts importants. Dans le cas notamment où les différentes pièces formant l'amortisseur sont constituées de matériaux différents, on constate des problèmes de fonctionnement de l'amortisseur. En particulier, lorsque le pallier et/ou le corps de l'amortisseur sont constitués de matériaux ayant des coefficients de dilatation différents de celui du cylindre, le fonctionnement de l'amortisseur peut être altéré lors de son échauffement. Vehicle shock absorbers are generally subject to severe stresses and stresses. In the case in particular where the different parts forming the damper are made of different materials, there are problems in the operation of the damper. In particular, when the bearing and / or the body of the damper consist of materials having expansion coefficients different from that of the cylinder, the operation of the damper may be impaired during its heating.
Un but de la présente invention est de proposer un amortisseur palliant tout ou partie des inconvénients de l'art antérieur relevés ci-dessus. An object of the present invention is to provide a damper overcoming all or part of the disadvantages of the prior art noted above.
Ce but est atteint par le fait que l'amortisseur comporte un corps, un cylindre tubulaire disposé dans le corps, un piston monté<B>à</B> l'une des extrémités d'une tige et apte<B>à</B> coulisser dans le cylindre, l'une des extrémités du cylindre étant refermée par un pallier de guidage de la tige, l'amortisseur comportant par ailleurs des moyens élastiques interposés entre le cylindre et le pallier, pour autoriser un faible débattement du pallier par rapport au cylindre au moins dans la direction longitudinale de l'amortisseur Par ailleurs, l'invention peut comporter l'une ou plusieurs des caractéristiques suivantes<B>:</B> <B>-</B> les moyens élastiques autorisent un faible débattement du pallier par rapport au cylindre dans une direction sensiblement transversale<B>à</B> l'axe de l'amortisseur, <B>-</B> les moyens élastiques sont coincés entre le bord circulaire de l'extrémité du cylindre et un logement ou épaulement formé sur le palier, <B>-</B> les moyens élastiques sont constitués d'au moins une rondelle du type "Belleville", <B>-</B> les moyens élastiques sont constitués de deux rondelles du type "Belleville" montées l'une contre l'autre de façon antagoniste, <B>-</B> le cylindre est maintenu dans le corps par sertissage de l'une des extrémités du corps sur le pallier, <B>-</B> le corps et/ou le pallier et/ou le cylindre sont constitués de matériaux ayant des coefficients de dilatation thermique distincts, <B>-</B> le corps et le pallier sont constitués d'un alliage du type aluminium, le cylindre étant constitué d'un métal du type acier. D'autres particularités et avantages apparaîtront<B>à</B> la lecture de la description ci-après, faite en référence aux figures dans lesquelles<B>:</B> <B>-</B> la figure<B>1</B> représente une vue schématique, en coupe longitudinale, d'un amortisseur conforme<B>à</B> l'invention, <B>-</B> la figure 2 représente une vue agrandie d'un détail de la figure<B>1.</B> This object is achieved by the fact that the damper comprises a body, a tubular cylinder disposed in the body, a piston mounted at one of the ends of a rod and suitable for <B> to </ b>. / B> slide in the cylinder, one end of the cylinder being closed by a bearing guide of the rod, the damper further comprising resilient means interposed between the cylinder and palliate, to allow a small clearance of the pallier relative to the cylinder at least in the longitudinal direction of the damper Furthermore, the invention may include one or more of the following features: <B> - </ B> - the elastic means allow a small deflection of the bearing relative to the cylinder in a direction substantially transverse <B> to </ B> the axis of the damper, <B> - </ B> the elastic means are wedged between the circular edge of the end of the cylinder and a housing or shoulder formed on the bearing, <B > - </ B> the elastic means consist of at least one washer of the type "Belleville", <B> - </ B> the elastic means consist of two washers of the type "Belleville" mounted against the other way antagonist, <B> - </ B> the cylinder is held in the body by crimping of one of the ends of the body on the palliate, <B> - </ B> the body and / or palliate it and / or the cylinder are made of materials having distinct coefficients of thermal expansion, <B> - </ B> the body and the bearing are made of an alloy of the aluminum type, the cylinder being made of a metal of the type steel. Other particularities and advantages will become apparent when reading the following description, with reference to the figures in which the figure: <b> <b> - </ b> B> 1 </ B> represents a diagrammatic view, in longitudinal section, of a damper according to the invention; <B> - </ B> FIG. 2 represents an enlarged view of a detail of the figure <B> 1. </ B>
L'amortisseur représenté<B>à</B> la figure<B>1</B> comporte, classiquement, un corps cylindrique tubulaire<B>1</B> dont l'extrémité inférieure est fermée. Par ailleurs, l'extrémité inférieure du corps<B>1</B> est solidaire d'un #il <B>10</B> apte<B>à</B> être fixé sur un premier élément de structure (non représenté). The damper shown at <B> 1 </ B> comprises, conventionally, a tubular cylindrical body <B> 1 </ B> whose lower end is closed. On the other hand, the lower end of the body <B> 1 </ B> is attached to a #il <B> 10 </ B> fit <B> to </ B> be fixed on a first structural element ( not shown).
De façon connue également, un dispostif de compensation <B>11</B> est disposé dans le fond du corps<B>1.</B> L'amortisseur comporte également un cylindre tubulaire 2 disposé<B>à</B> l'intérieur du corps<B>1,</B> et destiné<B>à</B> guider le coulissement d'un piston<B>3</B> solidaire d'une tige 4. L'extrémité supérieure de la tige 4 est destinée<B>à</B> être fixée quant<B>à</B> elle sur un second élément de structure. Par soucis de simplification, l'extrémité supérieure de la tige 4 n'est pas représentée. In a known manner also, a compensation device <B> 11 </ B> is disposed in the bottom of the body <B> 1. </ B> The damper also comprises a tubular cylinder 2 arranged <B> to </ B> > inside the body <B> 1, </ B> and intended <B> to </ B> guide the sliding of a piston <B> 3 </ B> secured to a rod 4. The end The upper part of the rod 4 is intended to be fixed as to a second structural element. For the sake of simplification, the upper end of the rod 4 is not shown.
L'extrémité inférieure du cylindre 2 tubulaire est refermée par le dispositif de compensation<B>11.</B> L'extrémité supérieure du cylindre 2 est refermée quant<B>à</B> elle par un pallier<B>6</B> de guidage de la tige 4. L'ensemble constitué par le cylindre 2 et le pallier<B>6</B> est maintenu dans le corps<B>1</B> par sertissage de l'extrémité supérieure 12 du corps<B>1</B> sur le pallier<B>6.</B> The lower end of the tubular cylinder 2 is closed by the compensation device <B> 11. </ B> The upper end of the cylinder 2 is closed when <B> to </ B> it by a step <B> 6 </ B> of the rod 4. The assembly constituted by the cylinder 2 and the bearing <B> 6 </ B> is maintained in the body <B> 1 </ B> by crimping the upper end 12 <B> 1 </ B> on the landing <B> 6. </ B>
Selon l'invention, des moyens élastiques<B>7, 8</B> sont disposés entre le cylindre 2 et le pallier<B>6,</B> pour autoriser un faible débattement du pallier<B>6</B> par rapport au cylindre 2. Plus précisément, les moyens élastiques<B>7, 8</B> sont prévus pour assurer un rattrapage de jeu entre le pallier<B>6</B> et le cylindre 2, selon au moins la direction longitudinale de l'amortisseur. According to the invention, elastic means <B> 7, 8 </ B> are arranged between the cylinder 2 and the landing <B> 6, </ B> to allow a small clearance of the landing <B> 6 </ B relative to the cylinder 2. More specifically, the resilient means <B> 7, 8 </ B> are provided to ensure a clearance clearance between the bearing <B> 6 </ B> and the cylinder 2, according to at least the longitudinal direction of the damper.
La figure 2 illustre le détail<B>D</B> de la figure<B>1,</B> qui correspond<B>à</B> la jonction entre le cylindre 2 et le pallier<B>6.</B> Comme représenté<B>à</B> la figure 2, les moyens élastiques peuvent être constitués de deux rondelles<B>7, 8</B> du type BELLEVILLE@, montées l'une contre l'autre de façon antagoniste. C'est<B>à</B> dire que les deux rondelles<B>7, 8</B> sont montées de manière inversée l'une par rapport<B>à</B> l'autre. Figure 2 illustrates the detail <B> D </ B> of the figure <B> 1, </ B> which corresponds to <B> at the junction between the cylinder 2 and the landing <B> 6. </ B> As shown in Figure 2, the elastic means may consist of two washers BELLEVILLE @, 7, 8, mounted against each other antagonistically. This is <B> to </ B> say that the two washers <B> 7, 8 </ B> are mounted in reverse order to each other.
Par exemple, les rondelles<B>7, 8</B> sont enfilées sur le pallier <B>6</B> et coincées entre, d'une part le bord circulaire de l'extrémité supérieure du cylindre 2 et, d'autre part, un épaulement<B>9</B> formé sur le palier<B>6.</B> For example, the washers <B> 7, 8 </ B> are threaded on the landing <B> 6 </ B> and wedged between, on the one hand the circular edge of the upper end of the cylinder 2 and, d on the other hand, a shoulder <B> 9 </ B> formed on the landing <B> 6. </ B>
On conçoit donc aisément que l'amortisseur selon l'invention, tout en étant de structure simple, permet de ménager un faible jeu entre le pallier<B>6</B> et le cylindre 2. En particulier, lorsque le cylindre 2 est constitué, par exemple d'un métal tel que l'acier, et que le pallier<B>6</B> et le coprs <B>1</B> sont constitués d'aluminium, les moyens élastiques<B>7, 8</B> permettent d'adapter la structure de l'amortisseur aux différences de dilatation des différentes pièces. It is therefore easy to understand that the damper according to the invention, while being of simple structure, makes it possible to provide a small clearance between the bearing <B> 6 </ B> and the cylinder 2. In particular, when the cylinder 2 is consisting of, for example a metal such as steel, and that the bearing <B> 6 </ B> and the body <B> 1 </ B> are made of aluminum, the elastic means <B> 7 , 8 </ B> make it possible to adapt the structure of the shock absorber to the differences in expansion of the different parts.
Enfin, bien que l'invention ait été décrite en liaison avec des modes de réalisation particuliers, elle comprend tous les équivalents techniques des moyens décrits.Finally, although the invention has been described in connection with particular embodiments, it includes all the technical equivalents of the means described.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9912803A FR2799808B1 (en) | 1999-10-14 | 1999-10-14 | SUSPENSION SHOCK ABSORBER |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9912803A FR2799808B1 (en) | 1999-10-14 | 1999-10-14 | SUSPENSION SHOCK ABSORBER |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2799808A1 true FR2799808A1 (en) | 2001-04-20 |
FR2799808B1 FR2799808B1 (en) | 2002-03-08 |
Family
ID=9550911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9912803A Expired - Lifetime FR2799808B1 (en) | 1999-10-14 | 1999-10-14 | SUSPENSION SHOCK ABSORBER |
Country Status (1)
Country | Link |
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FR (1) | FR2799808B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1664584A2 (en) * | 2003-09-25 | 2006-06-07 | Tenneco Automotive Operating Company Inc. | Improved thermal expansion compensation shock absorber |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2695446A1 (en) * | 1992-09-10 | 1994-03-11 | Fichtel & Sachs Ag | Vibration damper assembly with double tube. |
EP0596430A2 (en) * | 1992-11-02 | 1994-05-11 | FICHTEL & SACHS AG | A cylinder piston device |
DE19628152A1 (en) * | 1996-07-12 | 1998-01-15 | Krupp Bilstein Gmbh | Hydraulic vibration damper for vehicle |
US5794743A (en) * | 1995-04-08 | 1998-08-18 | Fichtel & Sachs Ag | Shock absorber or vibration damper |
-
1999
- 1999-10-14 FR FR9912803A patent/FR2799808B1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2695446A1 (en) * | 1992-09-10 | 1994-03-11 | Fichtel & Sachs Ag | Vibration damper assembly with double tube. |
EP0596430A2 (en) * | 1992-11-02 | 1994-05-11 | FICHTEL & SACHS AG | A cylinder piston device |
US5794743A (en) * | 1995-04-08 | 1998-08-18 | Fichtel & Sachs Ag | Shock absorber or vibration damper |
DE19628152A1 (en) * | 1996-07-12 | 1998-01-15 | Krupp Bilstein Gmbh | Hydraulic vibration damper for vehicle |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1664584A2 (en) * | 2003-09-25 | 2006-06-07 | Tenneco Automotive Operating Company Inc. | Improved thermal expansion compensation shock absorber |
EP1664584A4 (en) * | 2003-09-25 | 2009-09-30 | Tenneco Automotive Operating | Improved thermal expansion compensation shock absorber |
Also Published As
Publication number | Publication date |
---|---|
FR2799808B1 (en) | 2002-03-08 |
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Effective date: 20180312 |
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Owner name: PEUGEOT CITROEN AUTOMOBILES SA, FR Effective date: 20180312 |
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Year of fee payment: 20 |