FR2656397A1 - Shock absorber (impact absorber) - Google Patents
Shock absorber (impact absorber) Download PDFInfo
- Publication number
- FR2656397A1 FR2656397A1 FR8917507A FR8917507A FR2656397A1 FR 2656397 A1 FR2656397 A1 FR 2656397A1 FR 8917507 A FR8917507 A FR 8917507A FR 8917507 A FR8917507 A FR 8917507A FR 2656397 A1 FR2656397 A1 FR 2656397A1
- Authority
- FR
- France
- Prior art keywords
- hole
- expandable element
- absorber
- shock
- parts
- 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.)
- Withdrawn
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
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
- F16F7/125—Units with a telescopic-like action as one member moves into, or out of a second member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/90—Details or parts not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Vibration Dampers (AREA)
Abstract
Description
La présente invention a pour objet un dispositif pour absorber l'énergie due à un choc qui se produit sur deux pièces et tend à écarter ces pièces l'une de l'autre.The present invention relates to a device for absorbing energy due to an impact which occurs on two parts and tends to separate these parts from one another.
Ce dispositif est caractérisé en ce qu'il comprend un corps tubulaire métallique propre à être relié à l'une des deux pièces, un élément expansible qui est disposé dans le corps en étant immobilisé axialement par rapport à lui et dont le diamètre extérieur est sensiblement égal au diamètre intérieur du corps, cet élément expansible étant percé en son centre d'un trou axial tronconique, et un cône expanseur qui a la même conicité que le trou dudit élément et est engagé dans ce trou et propre à entre relié à l'autre pièce.This device is characterized in that it comprises a metallic tubular body suitable for being connected to one of the two parts, an expandable element which is disposed in the body while being immobilized axially with respect to it and whose outside diameter is substantially equal to the internal diameter of the body, this expandable element being pierced in its center with a frustoconical axial hole, and an expander cone which has the same conicity as the hole of said element and is engaged in this hole and suitable for between connected to the other room.
Lors d'un choc tendant à déplacer les deux pièces l'une par rapport à l'autre, le cône tend à expandre l'élément expansible et, par voie de conséquence, la paroi du corps, ce qui absorbe l'énergie du choc.During a shock tending to move the two parts relative to each other, the cone tends to expand the expandable element and, consequently, the wall of the body, which absorbs the energy of the shock .
L'élément expansible est de préférence constitué par deux ou plusieurs portions qui sont initialement pratiquement en contact. Lors d'un choc, ces portions s'écartent en assurant l'expansion de la paroi du corps.The expandable element is preferably constituted by two or more portions which are initially substantially in contact. During a shock, these portions move apart ensuring the expansion of the wall of the body.
L'absorbeur de chocs selon l'invention convient en particulier pour assurer l'ancrage d'un siège de véhicule sur le plancher de ce Véhicule.The shock absorber according to the invention is particularly suitable for anchoring a vehicle seat on the floor of this vehicle.
On a décrit ci-après, à titre d'exemple non limitatif, un mode de réalisation de l'absorbeur de chocs selon l'invention, avec référence au dessin annexé dans lequel
La Figure 1 est une vue en coupe axiale
du dispositif;
La Figure 2 en est une coupe transversale
suivant II-II de la Figure 1.An embodiment of the shock absorber according to the invention has been described below, by way of nonlimiting example, with reference to the appended drawing in which
Figure 1 is an axial sectional view
of the device;
Figure 2 is a cross section
according to II-II of Figure 1.
Tel qu'il est représenté au dessin, l'absorbeur de chocs selon l'invention comprend un corps tubulaire métallique 1 dont une extrémité présente un bord la roulé vers l'intérieur et servant de butée à un embout 2. L'autre extrémité du corps 1 présente également un bord lb roulé vers l'intérieur et qui sert de butée à deux demi-coquilles 3a et 3b par l'intermédiaire d'un joint 4 et d'une rondelle 5. Les demi-coquilles 3a et 3b sont extérieurement semi-circulaires et présentent en leur centre un trou tronconique 6.As shown in the drawing, the shock absorber according to the invention comprises a metallic tubular body 1, one end of which has an edge which is rolled inwards and serves as a stop for a nozzle 2. The other end of the body 1 also has an edge 1b rolled inwards and which serves as a stop for two half-shells 3a and 3b by means of a seal 4 and a washer 5. The half-shells 3a and 3b are externally semicircular and have in their center a frustoconical hole 6.
Dans le corps 1 se trouve un cône expanseur 7 qui a la même conicité que le trou 6 et est solidaire d'une bague de guidage 8 dont le diamètre est égal au diamètre intérieur du corps 1.In the body 1 is an expander cone 7 which has the same conicity as the hole 6 and is integral with a guide ring 8 whose diameter is equal to the internal diameter of the body 1.
L'embout 2 et le cône 7 présentent des taraudages axiaux qui permettent leur fixation sur deux pièces dont le mouvement relatif dans le sens de la flèche F est à amortir. Lorsque ce mouvement relatif se produit les deux demi-coquilles 3a et 3b sont repoussées par le cône 7 et s'écartent l'une de l'autre en déformant le tube 1, comme indiqué en traits mixtes à la Figure 1, ce qui absorbe l'énergie du choc. Un déplacement relatif en sens contraire est empêché par la butée de la bague 8 contre l'embout 2.The end piece 2 and the cone 7 have axial threads which allow them to be fixed on two parts whose relative movement in the direction of the arrow F is to be damped. When this relative movement occurs the two half-shells 3a and 3b are pushed back by the cone 7 and move away from each other by deforming the tube 1, as shown in phantom in Figure 1, which absorbs shock energy. Relative movement in the opposite direction is prevented by the stop of the ring 8 against the end piece 2.
I1 va de soi que la présente invention ne doit pas être considérée comme limitée au mode de réalisation décrit et représenté, mais en couvre au contraire toutes les variantes. I1 goes without saying that the present invention should not be considered as limited to the embodiment described and shown, but on the contrary covers all variants.
C'est ainsi qu'au lieu de deux demi-coquilles, on pourrait en prévoir trois ou davantage.Thus instead of two half-shells, one could provide three or more.
Par ailleurs, au lieu de travailler à la traction comme représenté, le dispositif pourrait travailler à la compression; il suffirait pour cela de fixer l'une des pièces à l'extrémité de grande section du cône 7 et l'autre pièce à l'extrémité du tube 1 où se trouve le bord roulé lb. Furthermore, instead of working in traction as shown, the device could work in compression; it would suffice for this to fix one of the pieces at the end of the large section of the cone 7 and the other piece at the end of the tube 1 where the rolled edge 1b is located.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8917507A FR2656397A1 (en) | 1989-12-22 | 1989-12-22 | Shock absorber (impact absorber) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8917507A FR2656397A1 (en) | 1989-12-22 | 1989-12-22 | Shock absorber (impact absorber) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2656397A1 true FR2656397A1 (en) | 1991-06-28 |
Family
ID=9389187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8917507A Withdrawn FR2656397A1 (en) | 1989-12-22 | 1989-12-22 | Shock absorber (impact absorber) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2656397A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238307A (en) * | 2019-06-28 | 2019-09-17 | 成都联创精密机械有限公司 | A kind of fuel tank bulging device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2682931A (en) * | 1950-03-03 | 1954-07-06 | Victor M Young | Means for absorbing energy due to sudden impact |
| US3369802A (en) * | 1966-02-02 | 1968-02-20 | Miner Inc W H | Adjustable damped spring |
| FR2241726A1 (en) * | 1973-08-22 | 1975-03-21 | Hoeganaes Ab | |
| EP0078479A1 (en) * | 1981-11-02 | 1983-05-11 | Engineering Patents & Equipment Limited | Energy absorbing seat arrangement |
| FR2555832A1 (en) * | 1983-11-28 | 1985-05-31 | Canton Gilbert | Controlled traction device for fixing overhead cables to pylons |
-
1989
- 1989-12-22 FR FR8917507A patent/FR2656397A1/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2682931A (en) * | 1950-03-03 | 1954-07-06 | Victor M Young | Means for absorbing energy due to sudden impact |
| US3369802A (en) * | 1966-02-02 | 1968-02-20 | Miner Inc W H | Adjustable damped spring |
| FR2241726A1 (en) * | 1973-08-22 | 1975-03-21 | Hoeganaes Ab | |
| EP0078479A1 (en) * | 1981-11-02 | 1983-05-11 | Engineering Patents & Equipment Limited | Energy absorbing seat arrangement |
| FR2555832A1 (en) * | 1983-11-28 | 1985-05-31 | Canton Gilbert | Controlled traction device for fixing overhead cables to pylons |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238307A (en) * | 2019-06-28 | 2019-09-17 | 成都联创精密机械有限公司 | A kind of fuel tank bulging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |