FR2706557A1 - Shock absorber - Google Patents
Shock absorber Download PDFInfo
- Publication number
- FR2706557A1 FR2706557A1 FR9307214A FR9307214A FR2706557A1 FR 2706557 A1 FR2706557 A1 FR 2706557A1 FR 9307214 A FR9307214 A FR 9307214A FR 9307214 A FR9307214 A FR 9307214A FR 2706557 A1 FR2706557 A1 FR 2706557A1
- Authority
- FR
- France
- Prior art keywords
- shredder
- engaged
- parts
- opening
- edge
- 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.)
- Pending
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
- F16F7/127—Vibration-dampers; Shock-absorbers using plastic deformation of members by a blade element cutting or tearing into a quantity of material; Pultrusion of a filling material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (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 ou à rapprocher ces deux pièces l'une de l'autre.The subject of the present invention is a device for absorbing the energy due to an impact which occurs on two parts and tends to separate or bring these two parts closer to 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 et un déchiqueteur qui est propre à être relié à l'autre pièce, est engagé dans le corps tubulaire et présente au moins une saillie latérale en appui sur la tranche de ce corps ou d'une ouverture ménagée dans ledit corps. This device is characterized in that it comprises a metallic tubular body suitable for being connected to one of the two parts and a shredder which is suitable for being connected to the other part, is engaged in the tubular body and has at least a lateral projection bearing on the edge of this body or of an opening made in said body.
Quand il s'exerce sur les deux pièces un choc qui tend à déplacer le déchiqueteur dans le corps tubulaire, ce déchiqueteur arrache progressivement la paroi du corps qui se trouve en regard de sa saillie, ce qui absorbe l'énergie de choc.When a shock is exerted on the two parts which tends to move the shredder in the tubular body, this shredder progressively tears off the wall of the body which is opposite its projection, which absorbs the impact energy.
Le dispositif selon l'invention peut être utilisé par exemple pour relier un siège d'avion au plancher de l'avion de façon à absorber l'énergie produite lors d'un choc et qui tend à faire basculer le siège.The device according to the invention can be used for example to connect an airplane seat to the floor of the airplane so as to absorb the energy produced during an impact and which tends to tilt the seat.
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 de
l'absorbeur de chocs;
La Figure 2 en est une coupe transversale
suivant II-II de la Figure 1;
La Figure 3 est une vue semblable à la
Figure 1, après fonctionnement de l'absorbeur.An embodiment of the shock absorber according to the invention has been described below, by way of non-limiting example, with reference to the appended drawing in which
Figure 1 is an axial sectional view of
the shock absorber;
Figure 2 is a cross section
according to II-II of Figure 1;
Figure 3 is a view similar to the
Figure 1, after operation of the absorber.
Tel qu'il est représenté au dessin, l'absorbeur de chocs comporte un tube métallique 1 de section rectangulaire dans lequel peut coulisser une tige de traction 2.As shown in the drawing, the shock absorber comprises a metal tube 1 of rectangular section in which a pull rod 2 can slide.
Deux parois latérales opposées du tube 1 présentent chacune une ouverture la qui est traversée par un déchiqueteur 3, de section rectangulaire, dont les grands côtés transversaux ont une longueur un peu supérieure à la largeur des grands côtés du tube 1, de sorte que le déchiqueteur fait saillie de part et d'autre du tube comme indiqué en 3a alors que ses petits côtés transversaux ont une épaisseur extérieure sensiblement égale à l'épaisseur intérieure du tube. Après son introduction latérale dans le tube 1 par des ouvertures la, le déchiqueteur a été fixé à la tige de traction 2 par une vis 4. Ce déchiqueteur comporte deux gorges arrondies 3b sur sa face interne, en regard des bords correspondants des fentes la.Two opposite side walls of the tube 1 each have an opening 1a which is crossed by a shredder 3, of rectangular section, the long transverse sides of which have a length slightly greater than the width of the long sides of the tube 1, so that the shredder protrudes on either side of the tube as indicated in 3a while its small transverse sides have an external thickness substantially equal to the internal thickness of the tube. After its lateral introduction into the tube 1 through openings la, the shredder was fixed to the pull rod 2 by a screw 4. This shredder has two rounded grooves 3b on its internal face, facing the corresponding edges of the slots la.
Dans l'extrémité du tube 1 adjacente au déchiqueteur, a été emmanchée une douille taraudée 5 fixée au tube par des rivets 6. Une rotule filetée 7 est vissée dans la douille 5; une deuxième rotule filetée 8 est fixée dans l'extrémité de la tige de traction 2. L'absorbeur est fixé par les rotules 7 et 8 aux pièces qui risquent de subir un choc.In the end of the tube 1 adjacent to the shredder, has been fitted a threaded socket 5 fixed to the tube by rivets 6. A threaded ball joint 7 is screwed into the socket 5; a second threaded ball joint 8 is fixed in the end of the traction rod 2. The absorber is fixed by ball joints 7 and 8 to the parts which are liable to be shocked.
Avant utilisation, une légère traction a été exercée sur la tige 2 de sorte que les bords transversaux des ouvertures la ont été légèrement roulés sur eux-mêmes comme indiqué en lb.Before use, a slight traction was exerted on the rod 2 so that the transverse edges of the openings la were slightly rolled on themselves as indicated in lb.
Lorsque s'exerce sur les deux pièces reliées aux rotules 7 et 8, un choc qui tend à écarter ces rotules l'une de l'autre, le déchiqueteur 3 arrache progressivement deux bandes de métal dans la paroi du tube 1, comme le montre la Figure 3, ce qui absorbe l'énergie due au choc.When the two parts connected to the ball joints 7 and 8 are exerted, a shock which tends to separate these ball joints from one another, the shredder 3 progressively tears off two strips of metal in the wall of the tube 1, as shown Figure 3, which absorbs the energy due to the shock.
Il 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. It 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 its variants.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9307214A FR2706557A1 (en) | 1993-06-10 | 1993-06-10 | Shock absorber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9307214A FR2706557A1 (en) | 1993-06-10 | 1993-06-10 | Shock absorber |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2706557A1 true FR2706557A1 (en) | 1994-12-23 |
Family
ID=9448161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9307214A Pending FR2706557A1 (en) | 1993-06-10 | 1993-06-10 | Shock absorber |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2706557A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103661028A (en) * | 2013-12-13 | 2014-03-26 | 航宇救生装备有限公司 | Landmine-preventing seat of vehicle |
CN109488716A (en) * | 2018-12-23 | 2019-03-19 | 上海交通大学 | Based on varus composite material tube by pull-up buffer |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB905836A (en) * | 1959-09-01 | 1962-09-12 | Irving Air Chute Gb Ltd | Improvements in or relating to shock absorbing devices |
US3532379A (en) * | 1968-05-02 | 1970-10-06 | Boeing Co | Crashload attenuating aircraft crewseat |
US3670852A (en) * | 1971-02-18 | 1972-06-20 | United Aircraft Corp | Frangible tension shock absorber |
DE7314229U (en) * | 1973-04-12 | 1973-09-13 | Chenchanna Pidigundla | Force limiter |
US3866367A (en) * | 1971-06-09 | 1975-02-18 | State Of New Jersey | Deformable coupling |
GB1503316A (en) * | 1975-09-02 | 1978-03-08 | Imp Metal Ind Kynoch Ltd | Energy absorbers |
-
1993
- 1993-06-10 FR FR9307214A patent/FR2706557A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB905836A (en) * | 1959-09-01 | 1962-09-12 | Irving Air Chute Gb Ltd | Improvements in or relating to shock absorbing devices |
US3532379A (en) * | 1968-05-02 | 1970-10-06 | Boeing Co | Crashload attenuating aircraft crewseat |
US3670852A (en) * | 1971-02-18 | 1972-06-20 | United Aircraft Corp | Frangible tension shock absorber |
US3866367A (en) * | 1971-06-09 | 1975-02-18 | State Of New Jersey | Deformable coupling |
DE7314229U (en) * | 1973-04-12 | 1973-09-13 | Chenchanna Pidigundla | Force limiter |
GB1503316A (en) * | 1975-09-02 | 1978-03-08 | Imp Metal Ind Kynoch Ltd | Energy absorbers |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103661028A (en) * | 2013-12-13 | 2014-03-26 | 航宇救生装备有限公司 | Landmine-preventing seat of vehicle |
CN103661028B (en) * | 2013-12-13 | 2016-03-23 | 航宇救生装备有限公司 | The anti-land mine seat of a kind of vehicle |
CN109488716A (en) * | 2018-12-23 | 2019-03-19 | 上海交通大学 | Based on varus composite material tube by pull-up buffer |
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