FR3127263A1 - Assembly of two elements, in particular in a vehicle - Google Patents
Assembly of two elements, in particular in a vehicle Download PDFInfo
- Publication number
- FR3127263A1 FR3127263A1 FR2109982A FR2109982A FR3127263A1 FR 3127263 A1 FR3127263 A1 FR 3127263A1 FR 2109982 A FR2109982 A FR 2109982A FR 2109982 A FR2109982 A FR 2109982A FR 3127263 A1 FR3127263 A1 FR 3127263A1
- Authority
- FR
- France
- Prior art keywords
- assembly
- contact surface
- barbs
- pins
- elements
- 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
- 239000000463 material Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000010146 3D printing Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims 1
- 238000011084 recovery Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000284 resting effect Effects 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/005—Means to increase the friction-coefficient
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
- Pipe Accessories (AREA)
Abstract
Assemblage de deux éléments, notamment dans un véhicule L’assemblage (10) comprend un premier élément (12) et un second élément (14) à fixer l’un sur l’autre. Le premier élément (12) comprenant une première surface de contact (16) et le second élément (14) comprenant une seconde surface de contact (18), les première (16) et seconde (18) surfaces de contact étant appliquées l’une contre l’autre. Chaque élément (12, 14) comprend un orifice de passage (20, 22), un organe de fixation (24) traversant ces orifices de passage (20, 22). Au moins l’une des première (16) et seconde (18) surfaces de contact présente des picots (26) faisant saillie depuis cette surface. Figure pour l'abrégé : Figure 1Assembly of two elements, in particular in a vehicle The assembly (10) comprises a first element (12) and a second element (14) to be fixed one on the other. The first element (12) comprising a first contact surface (16) and the second element (14) comprising a second contact surface (18), the first (16) and second (18) contact surfaces being applied one against the other. Each element (12, 14) comprises a passage orifice (20, 22), a fixing member (24) passing through these passage orifices (20, 22). At least one of the first (16) and second (18) contact surfaces has barbs (26) projecting from that surface. Figure for abstract: Figure 1
Description
La présente invention concerne un assemblage de deux éléments, notamment dans un véhicule.The present invention relates to an assembly of two elements, in particular in a vehicle.
Les deux éléments sont fixés au moyen d’un organe de fixation passant au travers d’orifices de passage ménagées dans les deux éléments. Les deux éléments présentent des surfaces en contact l’une contre l’autre lorsqu’ils sont fixés.The two elements are fixed by means of a fixing member passing through passage orifices formed in the two elements. The two elements have contacting surfaces against each other when they are fixed.
Dans certains cas, notamment dans le cadre de certains éléments de véhicules, il apparait que l’assemblage travaille en cisaillement, c’est-à-dire que les éléments ont tendance à subir des contraintes l’une par rapport à l’autre parallèlement aux surfaces de contact.In some cases, particularly in the context of certain vehicle elements, it appears that the assembly works in shear, that is to say that the elements tend to undergo stresses relative to each other parallel to the contact surfaces.
Afin de reprendre le cisaillement, on connait déjà, dans l’état de la technique, des assemblages dont les éléments comportent des butées complémentaires venant en appui les unes contre les autres. De telles butées complémentaires sont efficaces pour limiter le travail en cisaillement, mais elles sont généralement complexes et couteuses à mettre en œuvre. D’autres solutions consistent à ajouter des rivets à l’assemblage,In order to take up the shearing, there are already known, in the state of the art, assemblies whose elements comprise complementary abutments coming to bear against each other. Such additional stops are effective in limiting the shearing work, but they are generally complex and expensive to implement. Other solutions consist of adding rivets to the assembly,
L’invention a notamment pour but de remédier à cet inconvénient, en proposant un assemblage présentant une bonne reprise de cisaillement de manière économique et efficace.The object of the invention is in particular to remedy this drawback, by proposing an assembly having good shear recovery in an economical and efficient manner.
A cet effet, l’invention a notamment pour objet un assemblage comprenant un premier élément et un second élément à fixer l’un sur l’autre, le premier élément comprenant une première surface de contact et le second élément comprenant une seconde surface de contact, les première et seconde surfaces de contact étant appliquées l’une contre l’autre, chaque élément comprenant un orifice de passage, et l’assemblage comprenant un organe de fixation traversant les orifices de passage, caractérisé en ce qu’au moins l’une des première et seconde surfaces de contact présente des picots faisant saillie depuis cette surface.To this end, the invention particularly relates to an assembly comprising a first element and a second element to be fixed to one another, the first element comprising a first contact surface and the second element comprising a second contact surface. , the first and second contact surfaces being applied against one another, each element comprising a passage orifice, and the assembly comprising a fixing member passing through the passage orifices, characterized in that at least the one of the first and second contact surfaces has studs protruding from this surface.
Les picots de la surface à picots pénètrent dans l’autre surface lors de la mise en place de l’organe de fixation. Il apparait alors que ces picots permettent une reprise des efforts de cisaillement suffisamment efficace pour ne pas nécessiter de butées ou d’ajout de rivets.The nubs of the nubby surface penetrate into the other surface during placement of the fastener. It then appears that these pins allow shear forces to be taken up sufficiently effectively to avoid the need for stops or the addition of rivets.
Un assemblage selon l’invention peut comporter en outre l’une ou plusieurs des caractéristiques suivantes, prises seules ou selon toutes les combinaisons techniquement envisageables.An assembly according to the invention may also comprise one or more of the following characteristics, taken alone or according to all the technically possible combinations.
- L’élément dont la surface de contact présente les picots est réalisé dans un matériau plus dur que l’autre élément.- The element whose contact surface has the pins is made of a harder material than the other element.
- L’élément dont la surface de contact présente les picots est réalisé en acier, et l’autre élément est réalisé dans un matériau plus tendre que l’acier, par exemple en aluminium, magnésium ou cuivre.- The element whose contact surface has the pins is made of steel, and the other element is made of a material softer than steel, for example aluminium, magnesium or copper.
- L’élément dont la surface de contact présente les picots est réalisé par impression tridimensionnelle.- The element whose contact surface has the pins is produced by three-dimensional printing.
- Les picots font saillie sur une hauteur inférieure à 1 mm de la surface de contact présentant ces picots.- The spikes protrude over a height of less than 1 mm from the contact surface having these spikes.
- La première surface de contact est une partie d’une surface plus grande du premier élément, et/ou la seconde surface de contact est une partie d’une surface plus grande du second élément.- The first contact surface is part of a larger surface of the first element, and/or the second contact surface is part of a larger surface of the second element.
- L’élément dont la surface de contact présente les picots ne comporte les picots que dans cette surface de contact.- The element whose contact surface has the pins only has the pins in this contact surface.
- Les orifices de passage traversent les surfaces de contact.- The through holes pass through the contact surfaces.
- L’assemblage est destiné à équiper un véhicule, notamment un véhicule ferroviaire.- The assembly is intended to equip a vehicle, in particular a railway vehicle.
Différents aspects et avantages de l’invention seront mis en lumière dans la description qui va suivre, donnée uniquement à titre d’exemple non limitatif et faite en se référant aux figures annexées, parmi lesquelles :Different aspects and advantages of the invention will be highlighted in the following description, given solely by way of non-limiting example and made with reference to the appended figures, among which:
On a représenté, sur les figures, un assemblage 10 selon un exemple de mode de réalisation de l’invention.The figures show an assembly 10 according to an exemplary embodiment of the invention.
L’assemblage 10 comporte un premier élément 12, et un second élément 14, fixés l’un sur l’autre.The assembly 10 comprises a first element 12, and a second element 14, fixed one on the other.
Plus particulièrement, le premier élément 12 présente une première surface de contact 16, et le second élément 14 présente une seconde surface de contact 18, les éléments 12, 14 étant fixés avec les surfaces de contact 16, 18 appliquées l’une contre l’autre, comme cela est représenté sur la
Les surfaces de contact 16, 18 peuvent constituer chacune une partie d’une surface plus grande. Ainsi, seules les parties de surfaces en contact sont appelées « surfaces de contact 16, 18 ».The contact surfaces 16, 18 may each constitute a part of a larger surface. Thus, only the parts of surfaces in contact are called “contact surfaces 16, 18”.
Le premier élément 12 comporte un premier orifice de passage 20, ménagé de manière à traverser la première surface 16.The first element 12 comprises a first passage orifice 20, formed so as to pass through the first surface 16.
De même, le second élément 14 comporte un second orifice de passage 22, ménagé de manière à traverser la seconde surface 18.Similarly, the second element 14 includes a second passage orifice 22, formed so as to pass through the second surface 18.
Les premier 20 et second 22 orifices de passage sont agencés en regard l’un de l’autre pour permettre le passage d’un organe de fixation 24 à travers les premier 12 et second 14 éléments, pour assurer leur fixation.The first 20 and second 22 through holes are arranged facing each other to allow the passage of a fixing member 24 through the first 12 and second 14 elements, to ensure their fixing.
L’organe de fixation 24 est par exemple un boulon, comportant une vis 24a, un écrou 24b, et de préférence des rondelles 24c prenant appui sur les éléments 12, 14 autour des orifices de passage 20, 22.The fixing member 24 is for example a bolt, comprising a screw 24a, a nut 24b, and preferably washers 24c resting on the elements 12, 14 around the passage orifices 20, 22.
Au moins l’une des première 16 et seconde 18 surfaces de contact présente des picots 26 faisant saillie depuis cette surface. Dans l’exemple décrit, c’est la première surface 16 qui est équipée de picots.At least one of the first 16 and second 18 contact surfaces has studs 26 projecting from this surface. In the example described, it is the first surface 16 which is equipped with pins.
Avantageusement, chaque picot 26 fait saillie sur une hauteur inférieure à 1mm depuis la surface de contact 16, 18 portant ces picots.Advantageously, each spike 26 protrudes over a height of less than 1 mm from the contact surface 16, 18 bearing these spikes.
Avantageusement, l’élément portant les picots 26 est réalisé dans un matériau plus dur que celui de l’autre élément. Par exemple, l’élément portant les picots 26 est réalisé en acier, et l’autre élément est réalisé dans un matériau plus malléable que l’acier, tel que l’aluminium, le magnésium ou le cuivre.Advantageously, the element carrying the pins 26 is made of a harder material than that of the other element. For example, the element carrying the pins 26 is made of steel, and the other element is made of a material that is more malleable than steel, such as aluminum, magnesium or copper.
Ainsi, lors du serrage du boulon, les picots 26 déforment la matière de l’autre élément, en s’enfonçant dedans. Chaque picot 26 assure ainsi une reprise de cisaillement, l’efficacité de cette reprise de cisaillement étant multipliée par le nombre de picots 26. On augmente ainsi le coefficient de frottement des surfaces de contact 16, 18 l’une contre l’autre.Thus, when tightening the bolt, the pins 26 deform the material of the other element, sinking into it. Each pin 26 thus provides a shear recovery, the effectiveness of this shear recovery being multiplied by the number of pins 26. This increases the coefficient of friction of the contact surfaces 16, 18 against each other.
Il apparait ainsi clairement que l’invention permet d’améliorer la capacité de reprise des efforts de cisaillement de l’assemblage 10, sans nécessiter de butées ménagées dans les éléments 12, 14.It thus clearly appears that the invention makes it possible to improve the capacity for absorbing shear forces of the assembly 10, without requiring stops made in the elements 12, 14.
En variante, les éléments 12, 14 peuvent être réalisés dans des matériaux similaires ou identiques, mais dans ce cas, des encoches complémentaires des picots doivent être prévus sur la surface ne portant pas ces picots, afin de les recevoir.As a variant, the elements 12, 14 can be made of similar or identical materials, but in this case, notches complementary to the pins must be provided on the surface not bearing these pins, in order to receive them.
On notera que la surface portant les picots 26 ne porte avantageusement des picots que dans la surface de contact, par exemple sur toute la surface de contact, ou en variante seulement sur une partie de la surface de contact.It will be noted that the surface carrying the spikes 26 advantageously carries spikes only in the contact surface, for example over the entire contact surface, or as a variant only over part of the contact surface.
Avantageusement, l’élément portant les picots 26 est réalisée par impression tridimensionnelle, ce qui permet de réaliser les picots de manière simple et efficace.Advantageously, the element carrying the spikes 26 is produced by three-dimensional printing, which makes it possible to produce the spikes in a simple and effective manner.
L’autre élément peut également de manière optionnelle être réalisé par impression tridimensionnelle, notamment dans le mode de réalisation où sa surface de contact comporte des encoches pour les picots.The other element can also optionally be produced by three-dimensional printing, in particular in the embodiment where its contact surface comprises notches for the pins.
Claims (7)
- l’élément (12) dont la surface de contact présente les picots (26) est réalisé dans un matériau plus dur que l’autre élément (14), et
- lequel l’élément (12) dont la surface de contact présente les picots (26) est réalisé par impression tridimensionnelle.Assembly (10) comprising a first element (12) and a second element (14) to be fixed to each other, the first element (12) comprising a first contact surface (16) and the second element (14) comprising a second contact surface (18), the first (16) and second (18) contact surfaces being applied against each other, each element (12, 14) comprising a passage orifice (20, 22) , and the assembly (10) comprising a fixing member (24) passing through the passage orifices (20, 22), in which at least one of the first (16) and second (18) contact surfaces has barbs (26) projecting from this surface, characterized in that:
- the element (12) whose contact surface has the pins (26) is made of a harder material than the other element (14), and
- which the element (12) whose contact surface has the pins (26) is produced by three-dimensional printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2109982A FR3127263B1 (en) | 2021-09-22 | 2021-09-22 | Assembly of two elements, particularly in a vehicle |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2109982A FR3127263B1 (en) | 2021-09-22 | 2021-09-22 | Assembly of two elements, particularly in a vehicle |
| FR2109982 | 2021-09-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR3127263A1 true FR3127263A1 (en) | 2023-03-24 |
| FR3127263B1 FR3127263B1 (en) | 2023-09-29 |
Family
ID=78212328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR2109982A Active FR3127263B1 (en) | 2021-09-22 | 2021-09-22 | Assembly of two elements, particularly in a vehicle |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR3127263B1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3065760A1 (en) * | 2017-04-28 | 2018-11-02 | Peugeot Citroen Automobiles Sa | PROCESS FOR PREPARING A SUPPORT SURFACE OF A SUPPORT RECEIVING THE TIGHTENING OF AN ELEMENT |
| FR3091915A1 (en) * | 2019-01-17 | 2020-07-24 | Renault S.A.S. | "Metal part for an internal combustion engine and assembly comprising such a part" |
| US20200398973A1 (en) * | 2019-06-22 | 2020-12-24 | Bell Textron Inc. | Component Alignment Systems for Aircraft |
-
2021
- 2021-09-22 FR FR2109982A patent/FR3127263B1/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3065760A1 (en) * | 2017-04-28 | 2018-11-02 | Peugeot Citroen Automobiles Sa | PROCESS FOR PREPARING A SUPPORT SURFACE OF A SUPPORT RECEIVING THE TIGHTENING OF AN ELEMENT |
| FR3091915A1 (en) * | 2019-01-17 | 2020-07-24 | Renault S.A.S. | "Metal part for an internal combustion engine and assembly comprising such a part" |
| US20200398973A1 (en) * | 2019-06-22 | 2020-12-24 | Bell Textron Inc. | Component Alignment Systems for Aircraft |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3127263B1 (en) | 2023-09-29 |
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