EP3152071A1 - Metal insert for a vehicle towing means - Google Patents

Metal insert for a vehicle towing means

Info

Publication number
EP3152071A1
EP3152071A1 EP15733796.5A EP15733796A EP3152071A1 EP 3152071 A1 EP3152071 A1 EP 3152071A1 EP 15733796 A EP15733796 A EP 15733796A EP 3152071 A1 EP3152071 A1 EP 3152071A1
Authority
EP
European Patent Office
Prior art keywords
insert
shock absorber
vehicle
sheet metal
towing means
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Withdrawn
Application number
EP15733796.5A
Other languages
German (de)
French (fr)
Inventor
Stéphane Ginja
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plastic Omnium SE
Original Assignee
Plastic Omnium SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Plastic Omnium SE filed Critical Plastic Omnium SE
Publication of EP3152071A1 publication Critical patent/EP3152071A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60DVEHICLE CONNECTIONS
    • B60D1/00Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/48Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting
    • B60D1/56Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting securing to the vehicle bumper
    • B60D1/565Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting securing to the vehicle bumper having an eyelet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60DVEHICLE CONNECTIONS
    • B60D1/00Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/48Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting
    • B60D1/488Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting mounted directly to the chassis of the towing vehicle

Definitions

  • the present invention relates to the field of vehicle towing means, and more specifically to the attachment means of a towing sleeve on a front face of the vehicle.
  • the front of a vehicle is equipped with a threaded socket for receiving a screw with a hook or a ring to provide a towing function.
  • the front face of a vehicle is usually composed of structural elements, and "crash boxes" which are shock absorbers capable of crashing in the event of impact and to protect the spars of non-repairable damage. More specifically, the structural elements are connected through the shock absorbers to the vehicle frame such as the main longitudinal members for example. In the case of a shock, it is understood that the structural elements of the front face transmit forces to shock absorbers.
  • the bushing is welded with one of the structural elements that are usually made of steel or aluminum.
  • the structural elements of the front face generally comprise a receiving housing of the socket adapted to weld the sleeve on either side of this housing.
  • the sleeve provided with its hook receives the traction forces of the other vehicle and transmits them to the structural elements of the front face, which transmit them in turn to the frame elements of the vehicle.
  • the present invention aims to overcome these disadvantages by providing a metal insert configured to allow the indirect attachment of the tow sleeve with a front face of a vehicle whose structural members are plastic or polymeric material.
  • the subject of the invention is a metal insert for overmoulding a means for towing a vehicle, characterized in that the insert is made of sheet metal so as to at least partially accommodate said towing means, the insert having different sheet metal sections, and in that it comprises at least one fin forming a projection of a sheet of metal, said fin being arranged to allow to take tensile forces of the other vehicle associated with towing.
  • the metal insert is adapted to act as an interface for taking up traction forces between a plastic structure element and a towing means.
  • this insert it becomes possible to integrate a conventional towing means to the front of a vehicle whose various elements, including shock absorbers, are not metallic. In this way, when towing the vehicle, the risk of rupture, permanent deformation or damage to the polymer material elements of the front face are avoided.
  • the metal insert may further include one or more of the following features, taken alone or in combination.
  • the insert is of elongate shape and has a longitudinal axis substantially parallel to that of the vehicle.
  • the insert has areas of mechanical weakness capable of allowing the insert to shorten longitudinally. Thus, during a collision of the vehicle to the right of the insert, it plastically deforms and helps absorb some of the energy of the shock.
  • the sheet metal sections are separated by folds of sheet metal.
  • the sheet metal sections have a given thickness
  • the zones of mechanical weakness comprise zones that are thinned with respect to the thickness of the sheet metal sections, and the said thin zones form rupture lines. Again, the risk of rupture, permanent deformation or damage to the polymer material elements of the front face are avoided.
  • the zones of weakness comprise at least one of the elements of the following list, a combination of these elements; holes, recesses, notches, marked folds, a ripple, a boss, or changes in thickness or material.
  • areas of weakness are relatively easy to achieve.
  • Box shape means a substantially closed profile.
  • the U-shape makes it easier to position the towing means.
  • the fins comprise orifices for receiving means for fixing the vehicle.
  • These fins have the advantage of being fixed by means of screws to a plate connected to the structure or the front face of the vehicle.
  • the insert comprises at least one zone having a double thickness of sheet.
  • the attachment zone of the insert to the structure or to the front of the vehicle is reinforced. It is also possible that the insert is made by folding and / or stamping, or by welding, or by riveting.
  • the insert has been laser cut.
  • the insert and its areas of weakness are precisely designed.
  • the insert is designed to withstand a tensile stress of less than 12000 N and to deform irreversibly in case of shock insurance.
  • shock Insurance means a vehicle impact at about 15km / h against a rigid wall, such as the one known as Danner, or "AZT", or about 8 km / h against a pole (impact post , IIHS standard or "bumper test” which is a shock against a wall having on its front part an absorber representing the rigidity of the front face of a vehicle).
  • the invention also relates to an assembly provided with an insert as mentioned above and a towing means which is preferably attached to the insert, in particular by welding.
  • a towing means which is preferably attached to the insert, in particular by welding.
  • the towing means of the assembly may comprise a threaded bushing.
  • the invention also relates to a vehicle shock absorber comprising an insert as described above in which the insert is overmolded with the shock absorber. Thus it is possible to overmold the insert with the shock absorber.
  • two fastening means ensure the attachment of the insert with the vehicle structure.
  • the fasteners are screwed into a metal plate of the spar through the orifices of the fins.
  • the insert is rigidly fixed to the spar.
  • the insert is in an eccentric position with respect to a median axis of the shock absorber or spar, the central axis being substantially parallel to the longitudinal axis of the insert.
  • the invention further relates to a motor vehicle comprising a shock absorber as presented above.
  • the insert is overmolded on the front face of the vehicle.
  • FIG. 1 is a perspective view of a bent sheet insert according to the invention provided with a sleeve.
  • FIG. 2 is a view of the insert of FIG. 1 in which the sheet metal sections of the insert are in a developed state.
  • Figure 3 is a sectional view of the insert of Figure 1 of a shock absorber of a structural element of the front face.
  • FIG. 1 shows an example of an insert 10 for a motor vehicle towing means 12 according to the invention.
  • the insert 10 is made from a folded or pressed sheet metal and here comprises three longitudinal sheet panels 14, 15, 16, a connecting plate 18 and two fins 20, 21.
  • the longitudinal sheet metal sections 14, 15, 16 are separated by sheet metal folds and consist of two lateral walls 14, 15 and a bottom wall 16. These longitudinal sheet metal sections together form a channel 24 in which the towing 12 is housed.
  • the towing means 12 is a socket which has a parallelepipedal shape whose three longitudinal faces are surrounded by the longitudinal sides 14, 15, 16 of the insert 10.
  • the fourth longitudinal face 12D of the sleeve 12 is free and is flush with the free edges 14A, 15A of the side walls 14, 15.
  • the sleeve 12 is fixed to the insert 10 by spot or bead welding, a weld being made between the edges of the flanges. sheet and at least one of the faces of the sleeve.
  • the longitudinal sheet metal sections 14, 15, 16 have a given thickness of 1 mm in this example. They comprise areas of mechanical weakness 28 which form recesses or cuts of elongated shapes oriented, according to the example described, substantially perpendicular to a longitudinal axis L of the insert 10. These areas of mechanical weakness 28 are discontinuities of material which are the result of laser cuts made on the sheet of the longitudinal sections of the insert.
  • the zones of mechanical weakness 28 thus form permanent deformation lines capable of longitudinally shortening the insert 10 during a deformation of said zones of mechanical weakness 28.
  • the bushing 12 is provided with a threaded hole 30 intended to receive for example a towing hook (not shown).
  • This end 29 of the sleeve 12 is substantially flush with the free edges 14B, 15B of the longitudinal sections of the insert.
  • the channel 24 in U formed by the longitudinal sections 14, 15, 16 thus comprises a receiving portion 32 of the sleeve 12 and a void portion 34 in which the side walls 14, 15 are directly opposite. It is specified that the mechanical zones of weakness 28 are located at the right of the empty portion 34 of the insert and they are not located at the right of the receiving portion of the sleeve.
  • the two side walls 14, 15 extend parallel to each other while in the empty portion 34, the side walls 14, 15 are separated by a distance which increases as one moves away from the sleeve 12 along the axis L.
  • the side walls 14, 15 of the insert are extended by the fins 20, 21 or "ears" folded, according to the example described, at an angle substantially In this example, these fins, each have a rounded portion pierced with a hole 40.
  • the fins 20, 21 are arranged to allow to take up tensile forces associated with towing.
  • the connecting plate 18 of the insert is a sheet metal strip extending the bottom wall 16.
  • the connecting plate 18 forms a substantially straight angle with the bottom wall 16 and transversely closes the end of the U-shape.
  • connecting plate 18 extends from one fin 20, 21 to the other by covering them and marrying at least a part of their shape. It is provided with two orifices 42 each arranged coaxially with the holes 40 of the fins.
  • the insert 10 has areas of double thickness 41 sheet which increases the rigidity of the insert at this location.
  • the insert 10 is shown in its expanded form, i.e., all the sheet metal sections of the insert are in an unfolded state.
  • the connecting plate of the insert 10 is fixed to the plate 44 of a shock absorber 46 by means of two screws 48.
  • the plate 44 of the shock absorber 46 is connected directly to the front face 47 of the vehicle.
  • the insert 10 is overmolded with the shock absorber 46, but could also be overmolded with other parts of the front face of the vehicle.
  • the insert 10 and the shock absorber 46 are adapted to deform plastically jointly and simultaneously by bearing on the front face 47 of the vehicle.
  • the insert is not limited to the embodiments presented above and other embodiments will become apparent to those skilled in the art. It is in particular possible to vary the general shape of the sheet metal sections of the insert or to make vary the shape of the fins designed to absorb the forces and transmit them to the plate of the shock absorber or directly to the front of the vehicle.
  • the fins could in particular take the form of simple tongues or folded teeth, which would be intended to be overmoulded with the shock absorber or with the front face of the vehicle.
  • the sleeve has a cylinder shape.
  • the insert forms a tubular housing provided for example with openings provided to facilitate the attachment of the socket. Also, to simplify manufacture, it can be envisaged that the insert does not provide a zone of weakness.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The invention relates to a metal insert (10) for overmoulding a vehicle towing means (12), which insert is made from sheet metal bent such that it can receive the towing means (12) at least partially. The insert (10) comprises a number of sheet metal faces (14, 15, 16) and at least one fin (20, 21) projecting from one sheet metal face (14, 15, 16), said fin (20, 21) being arranged to absorb the pulling forces associated with a trailer.

Description

Insert métallique pour moyen de remorquage de véhicule  Metal insert for vehicle towing means
La présente invention se rapporte au domaine des moyens de remorquages pour véhicule, et plus spécifiquement aux moyens de fixation d'une douille de remorquage sur une face avant de véhicule. The present invention relates to the field of vehicle towing means, and more specifically to the attachment means of a towing sleeve on a front face of the vehicle.
De manière classique, la face avant d'un véhicule est équipée d'une douille taraudée destinée à recevoir une vis munie d'un crochet ou d'un anneau pour assurer une fonction de remorquage. La face avant d'un véhicule est habituellement composée d'éléments de structure, et de « crash boxes » qui sont des absorbeurs de chocs aptes à s'écraser en cas de choc et à protéger les longerons d'endommagements non réparables. Plus précisément, les éléments de structure sont reliés, par l'intermédiaire des absorbeurs de chocs à l'ossature du véhicule tels que les longerons principaux par exemple. Dans le cas d'un choc, on comprend que les éléments de structure de la face avant transmettent les efforts aux absorbeurs de chocs.  Conventionally, the front of a vehicle is equipped with a threaded socket for receiving a screw with a hook or a ring to provide a towing function. The front face of a vehicle is usually composed of structural elements, and "crash boxes" which are shock absorbers capable of crashing in the event of impact and to protect the spars of non-repairable damage. More specifically, the structural elements are connected through the shock absorbers to the vehicle frame such as the main longitudinal members for example. In the case of a shock, it is understood that the structural elements of the front face transmit forces to shock absorbers.
Le plus souvent, la douille est soudée avec l'un des éléments de structure qui sont généralement en acier ou en aluminium. A cet effet, les éléments de structure de la face avant comportent généralement un logement de réception de la douille adapté pour y souder la douille de part et d'autre de ce logement.  Most often, the bushing is welded with one of the structural elements that are usually made of steel or aluminum. For this purpose, the structural elements of the front face generally comprise a receiving housing of the socket adapted to weld the sleeve on either side of this housing.
Ainsi, dans le cas d'une action de remorquage, d'arrimage ou de sortie de fossé, la douille munie de son crochet reçoit les efforts de traction de l'autre véhicule et les transmet aux éléments de structure de la face avant, lesquels les transmettent à leur tour aux éléments d'ossature du véhicule.  Thus, in the case of a towing action, docking or ditch exit, the sleeve provided with its hook receives the traction forces of the other vehicle and transmits them to the structural elements of the front face, which transmit them in turn to the frame elements of the vehicle.
Cette solution est donc satisfaisante dans le cas où la face avant comporte des éléments de structure métalliques car la transmission des efforts entre le crochet et le véhicule se fait par l'intermédiaire de la douille qui est soudée aux éléments de structure.  This solution is therefore satisfactory in the case where the front face comprises metal structural elements because the transmission of forces between the hook and the vehicle is through the sleeve which is welded to the structural elements.
Toutefois, lorsque les éléments de structure sont conçus en matière plastique, il n'est pas possible de fixer directement la douille dans ces éléments de structure, car ceux-ci ne sont pas suffisamment rigides et résistants pour reprendre les efforts de traction qui sont mis en jeu lors d'un remorquage, sans induire une dégradation ou une rupture desdits éléments de structure.  However, when the structural elements are made of plastic, it is not possible to directly fix the sleeve in these structural elements, because they are not sufficiently rigid and resistant to resume the tensile forces that are put at play during towing, without inducing degradation or failure of said structural elements.
La présente invention a pour but de remédier à ces inconvénients en fournissant un insert métallique configuré pour permettre la fixation indirecte de la douille de remorquage avec une face avant d'un véhicule dont les éléments de structure sont en matière plastique ou en matériau polymère.  The present invention aims to overcome these disadvantages by providing a metal insert configured to allow the indirect attachment of the tow sleeve with a front face of a vehicle whose structural members are plastic or polymeric material.
A cet effet, l'invention a pour objet un insert métallique pour surmoulage d'un moyen de remorquage d'un véhicule, caractérisé en ce que l'insert est réalisé en tôle de façon à accueillir au moins partiellement ledit moyen de remorquage, l'insert comportant différents pans de tôle, et en ce qu'il comporte au moins une ailette formant saillie d'un pan de tôle, ladite ailette étant agencée pour permettre de reprendre des efforts en traction de l'autre véhicule associés à un remorquage.For this purpose, the subject of the invention is a metal insert for overmoulding a means for towing a vehicle, characterized in that the insert is made of sheet metal so as to at least partially accommodate said towing means, the insert having different sheet metal sections, and in that it comprises at least one fin forming a projection of a sheet of metal, said fin being arranged to allow to take tensile forces of the other vehicle associated with towing.
Ainsi, l'insert métallique est adapté pour servir d'interface de reprise des efforts de traction entre un élément de structure en matière plastique avec un moyen de remorquage. Grâce à cet insert, il devient possible d'intégrer un moyen de remorquage classique à la face avant d'un véhicule dont les différents éléments, notamment les absorbeurs de chocs, ne sont pas métalliques. De cette manière, lors d'un remorquage du véhicule, les risques de rupture, de déformation permanente ou d'endommagement des éléments en matériau polymère de la face avant sont évités. Thus, the metal insert is adapted to act as an interface for taking up traction forces between a plastic structure element and a towing means. With this insert, it becomes possible to integrate a conventional towing means to the front of a vehicle whose various elements, including shock absorbers, are not metallic. In this way, when towing the vehicle, the risk of rupture, permanent deformation or damage to the polymer material elements of the front face are avoided.
L'insert métallique peut en outre comporter l'une ou plusieurs des caractéristiques suivantes, prises seules ou en combinaison.  The metal insert may further include one or more of the following features, taken alone or in combination.
Avantageusement, l'insert est de forme allongée et présente un axe longitudinal sensiblement parallèle à celui du véhicule. L'insert comporte des zones de faiblesse mécanique aptes à laisser l'insert se raccourcir longitudinalement. Ainsi, lors d'un choc du véhicule au droit de l'insert, celui-ci se déforme plastiquement et contribue à absorber une partie de l'énergie du choc.  Advantageously, the insert is of elongate shape and has a longitudinal axis substantially parallel to that of the vehicle. The insert has areas of mechanical weakness capable of allowing the insert to shorten longitudinally. Thus, during a collision of the vehicle to the right of the insert, it plastically deforms and helps absorb some of the energy of the shock.
Dans un autre exemple, les pans de tôle sont séparés par des plis de tôle.  In another example, the sheet metal sections are separated by folds of sheet metal.
On peut prévoir que les pans de tôle ont une épaisseur donnée, les zones de faiblesse mécanique comportent des zones amincies par rapport à l'épaisseur des pans de tôle, et lesdites zones amincies formant des lignes de rupture. Là aussi, les risques de rupture, de déformation permanente ou d'endommagement des éléments en matériau polymère de la face avant sont évités.  It can be provided that the sheet metal sections have a given thickness, the zones of mechanical weakness comprise zones that are thinned with respect to the thickness of the sheet metal sections, and the said thin zones form rupture lines. Again, the risk of rupture, permanent deformation or damage to the polymer material elements of the front face are avoided.
En variante, les zones de faiblesse comportent au moins un des éléments de la liste suivante, soit une combinaison de ces éléments ; des trous, des évidements, des entailles, des plis marqués, une ondulation, un bossage, ou encore des changements d'épaisseur ou de matériau. Ainsi, les zones de faiblesse sont relativement faciles à réaliser.  Alternatively, the zones of weakness comprise at least one of the elements of the following list, a combination of these elements; holes, recesses, notches, marked folds, a ripple, a boss, or changes in thickness or material. Thus, areas of weakness are relatively easy to achieve.
On peut prévoir que les plis de tôle forment ensemble un profilé en forme de U ou de caisson. On entend par forme de caisson un profil sensiblement fermé. Ainsi, la forme en U permet de faciliter le positionnement du moyen de remorquage.  It can be expected that the sheet metal folds together form a U-shaped section or box. Box shape means a substantially closed profile. Thus, the U-shape makes it easier to position the towing means.
Avantageusement, les ailettes comportent des orifices pour recevoir des moyens de fixation au véhicule. Ces ailettes présentent l'avantage de pouvoir être fixées par l'intermédiaire de vis à une platine reliée à la structure ou à la face avant du véhicule. Advantageously, the fins comprise orifices for receiving means for fixing the vehicle. These fins have the advantage of being fixed by means of screws to a plate connected to the structure or the front face of the vehicle.
De manière optionnelle, l'insert comporte au moins une zone ayant une double épaisseur de tôle. Ainsi, la zone de fixation de l'insert à la structure ou à la face avant du véhicule est renforcée. On peut aussi prévoir que l'insert est réalisé par pliage et/ou par emboutissage, ou encore par soudage, ou par rivetage.  Optionally, the insert comprises at least one zone having a double thickness of sheet. Thus, the attachment zone of the insert to the structure or to the front of the vehicle is reinforced. It is also possible that the insert is made by folding and / or stamping, or by welding, or by riveting.
Selon une autre variante, l'insert a fait l'objet d'une découpe laser. Ainsi, l'insert et ses zones de faiblesse sont conçus avec précision.  According to another variant, the insert has been laser cut. Thus, the insert and its areas of weakness are precisely designed.
Avantageusement, l'insert est prévu pour résister à un effort en traction inférieur à 12000 N et pour se déformer de manière irréversible en cas de choc assurance. Ainsi l'insert est adapté pour effectuer des opérations de remorquage tandis qu'un choc assurance provoquera une déformation plastique de l'insert de manière à absorber l'énergie du choc. On entend par « choc assurance » un choc de véhicule à environ 15km/h contre un mur rigide, tel que celui connu sous le nom de Danner, ou encore « AZT », ou à environ 8 km/h contre un poteau (choc poteau, norme IIHS ou « bumper test » qui est un choc contre une paroi comportant sur sa partie avant un absorbeur représentant la rigidité de la face avant d'un véhicule).  Advantageously, the insert is designed to withstand a tensile stress of less than 12000 N and to deform irreversibly in case of shock insurance. Thus the insert is adapted to carry out towing operations while an insurance shock will cause a plastic deformation of the insert so as to absorb the energy of the shock. "Shock Insurance" means a vehicle impact at about 15km / h against a rigid wall, such as the one known as Danner, or "AZT", or about 8 km / h against a pole (impact post , IIHS standard or "bumper test" which is a shock against a wall having on its front part an absorber representing the rigidity of the front face of a vehicle).
L'invention a aussi pour objet un ensemble muni d'un insert tel que précité et d'un moyen de remorquage qui est de préférence fixé à l'insert, notamment par soudage. Ainsi l'insert permet de reprendre directement les efforts du moyen de remorquage et le moyen de remorquage est solidement fixé à l'insert.  The invention also relates to an assembly provided with an insert as mentioned above and a towing means which is preferably attached to the insert, in particular by welding. Thus the insert allows to take directly the efforts of the towing means and the towing means is securely attached to the insert.
Le moyen de remorquage de l'ensemble peut comporter une douille taraudée. L'invention a également pour objet un absorbeur de chocs pour véhicule comportant un insert tel que décrit précédemment dans lequel l'insert est surmoulé avec l'absorbeur de chocs. Ainsi il est possible de surmouler l'insert avec l'absorbeur de chocs.  The towing means of the assembly may comprise a threaded bushing. The invention also relates to a vehicle shock absorber comprising an insert as described above in which the insert is overmolded with the shock absorber. Thus it is possible to overmold the insert with the shock absorber.
Avantageusement, deux moyens de fixation assurent la fixation de l'insert avec la structure du véhicule. En variante, les éléments de fixation sont vissés dans une platine métallique du longeron à travers des orifices des ailettes. Ainsi, l'insert est rigidement fixé au longeron.  Advantageously, two fastening means ensure the attachment of the insert with the vehicle structure. Alternatively, the fasteners are screwed into a metal plate of the spar through the orifices of the fins. Thus, the insert is rigidly fixed to the spar.
On peut prévoir que l'insert est dans une position excentrée par rapport à un axe médian de l'absorbeur de chocs ou du longeron, l'axe médian étant sensiblement parallèle à l'axe longitudinal de l'insert.  It can be provided that the insert is in an eccentric position with respect to a median axis of the shock absorber or spar, the central axis being substantially parallel to the longitudinal axis of the insert.
L'invention a encore pour objet un véhicule automobile comportant un absorbeur de chocs tel que présenté ci-avant.  The invention further relates to a motor vehicle comprising a shock absorber as presented above.
Avantageusement, l'insert est surmoulé en face avant du véhicule. L'invention sera mieux comprise à la lecture des figures annexées, qui sont fournies à titre d'exemples et ne présentent aucun caractère limitatif, dans lesquelles : Advantageously, the insert is overmolded on the front face of the vehicle. The invention will be better understood on reading the appended figures, which are provided by way of examples and are in no way limiting, in which:
- La figure 1 est une vue en perspective d'un insert en tôle pliée selon l'invention munie d'une douille.  - Figure 1 is a perspective view of a bent sheet insert according to the invention provided with a sleeve.
- La figure 2 est une vue de l'insert de la figure 1 dans lequel les pans de tôle de l'insert sont dans un état développé.  FIG. 2 is a view of the insert of FIG. 1 in which the sheet metal sections of the insert are in a developed state.
- La figure 3 est une vue en coupe de l'insert de la figure 1 d'un absorbeur de chocs d'un élément de structure de la face avant.  - Figure 3 is a sectional view of the insert of Figure 1 of a shock absorber of a structural element of the front face.
On a représenté à la figure 1 un exemple d'insert 10 pour un moyen de remorquage 12 de véhicule automobile selon l'invention. L'insert 10 est fabriqué à partir d'une tôle pliée ou emboutie et comporte ici trois pans de tôle longitudinaux 14, 15, 16, une plaque de liaison 18 et deux ailettes 20, 21 .  FIG. 1 shows an example of an insert 10 for a motor vehicle towing means 12 according to the invention. The insert 10 is made from a folded or pressed sheet metal and here comprises three longitudinal sheet panels 14, 15, 16, a connecting plate 18 and two fins 20, 21.
Les pans de tôle longitudinaux 14, 15, 16 sont séparés par des plis de tôle et constitués par deux parois latérales 14, 15 et une paroi de fond 16. Ces pans de tôle longitudinaux forment ensemble une gouttière 24 en U dans laquelle le moyen de remorquage 12 est logé. Dans cet exemple, le moyen de remorquage 12 est une douille qui a une forme parallélépipédique dont trois faces longitudinales sont entourées par les pans longitudinaux 14, 15, 16 de l'insert 10. Selon l'exemple, la quatrième face longitudinale 12D de la douille 12 est libre et affleure avec des bords libres 14A, 15A des parois latérales 14, 15. Ici la douille 12 est fixée à l'insert 10 par soudage par points ou au cordon, une soudure se trouvant réalisée entre les bords des pans de tôle et au moins une des faces de la douille.  The longitudinal sheet metal sections 14, 15, 16 are separated by sheet metal folds and consist of two lateral walls 14, 15 and a bottom wall 16. These longitudinal sheet metal sections together form a channel 24 in which the towing 12 is housed. In this example, the towing means 12 is a socket which has a parallelepipedal shape whose three longitudinal faces are surrounded by the longitudinal sides 14, 15, 16 of the insert 10. According to the example, the fourth longitudinal face 12D of the sleeve 12 is free and is flush with the free edges 14A, 15A of the side walls 14, 15. Here the sleeve 12 is fixed to the insert 10 by spot or bead welding, a weld being made between the edges of the flanges. sheet and at least one of the faces of the sleeve.
Les pans de tôle longitudinaux 14, 15, 16 ont une épaisseur donnée de 1 mm dans cet exemple. Ils comportent des zones de faiblesse mécanique 28 qui forment des évidements ou découpes de formes allongées orientées, selon l'exemple décrit, sensiblement perpendiculairement à un axe longitudinal L de l'insert 10. Ces zones de faiblesse mécanique 28 sont des discontinuités de matière qui sont le résultat de découpes laser effectuées sur la tôle des pans longitudinaux de l'insert. Les zones de faiblesse mécanique 28 forment ainsi des lignes de déformation permanente aptes à raccourcir longitudinalement l'insert 10 lors d'une déformation desdites zones de faiblesse mécanique 28.  The longitudinal sheet metal sections 14, 15, 16 have a given thickness of 1 mm in this example. They comprise areas of mechanical weakness 28 which form recesses or cuts of elongated shapes oriented, according to the example described, substantially perpendicular to a longitudinal axis L of the insert 10. These areas of mechanical weakness 28 are discontinuities of material which are the result of laser cuts made on the sheet of the longitudinal sections of the insert. The zones of mechanical weakness 28 thus form permanent deformation lines capable of longitudinally shortening the insert 10 during a deformation of said zones of mechanical weakness 28.
A l'une de ses extrémités 29, la douille 12 est munie d'un trou taraudé 30 destiné à recevoir par exemple un crochet de remorquage (non représenté). Cette extrémité 29 de la douille 12 affleure sensiblement avec des bords libres 14B, 15B des pans longitudinaux de l'insert.  At one of its ends 29, the bushing 12 is provided with a threaded hole 30 intended to receive for example a towing hook (not shown). This end 29 of the sleeve 12 is substantially flush with the free edges 14B, 15B of the longitudinal sections of the insert.
La gouttière 24 en U formée par les pans longitudinaux 14, 15, 16 comporte ainsi une partie de réception 32 de la douille 12 et une partie vide 34 dans laquelle les parois latérales 14, 15 se font directement face. On précise que les zones de faiblesse mécaniques 28 sont localisées au droit de la partie vide 34 de l'insert et qu'elles ne se situent pas au droit de la partie de réception de la douille. Dans la partie de réception 32 de la douille 12, les deux parois latérales 14, 15 s'étendent parallèlement l'une par rapport à l'autre tandis que dans la partie vide 34, les parois latérales 14, 15 sont séparées par une distance qui augmente à mesure que l'on s'éloigne de la douille 12 selon l'axe L. The channel 24 in U formed by the longitudinal sections 14, 15, 16 thus comprises a receiving portion 32 of the sleeve 12 and a void portion 34 in which the side walls 14, 15 are directly opposite. It is specified that the mechanical zones of weakness 28 are located at the right of the empty portion 34 of the insert and they are not located at the right of the receiving portion of the sleeve. In the receiving portion 32 of the sleeve 12, the two side walls 14, 15 extend parallel to each other while in the empty portion 34, the side walls 14, 15 are separated by a distance which increases as one moves away from the sleeve 12 along the axis L.
A l'extrémité 36 de l'insert opposée à celle portant la douille, les parois latérales 14, 15 de l'insert sont prolongées par les ailettes 20, 21 ou « oreilles » repliées, selon l'exemple décrit, à un angle sensiblement droit vers l'extérieur de la gouttière 24. Dans cet exemple, ces ailettes, présentent chacune une portion arrondie percée d'un trou 40. Les ailettes 20, 21 sont agencées pour permettre de reprendre des efforts en traction associés à un remorquage.  At the end 36 of the insert opposite that carrying the bushing, the side walls 14, 15 of the insert are extended by the fins 20, 21 or "ears" folded, according to the example described, at an angle substantially In this example, these fins, each have a rounded portion pierced with a hole 40. The fins 20, 21 are arranged to allow to take up tensile forces associated with towing.
La plaque de liaison 18 de l'insert est une bande de tôle prolongeant la paroi de fond 16. La plaque de liaison 18 forme un angle sensiblement droit avec la paroi de fond 16 et ferme transversalement l'extrémité de la forme en U. La plaque de liaison 18 s'étend d'une ailette 20, 21 à l'autre en recouvrant celles-ci et en épousant au moins une partie de leur forme. Elle est munie de deux orifices 42 chacun agencé coaxialement avec les trous 40 des ailettes. Ainsi, comme la plaque de liaison recouvre chaque ailette 38, l'insert 10 présente des zones de double épaisseur 41 de tôle ce qui augmente la rigidité de l'insert à cet endroit.  The connecting plate 18 of the insert is a sheet metal strip extending the bottom wall 16. The connecting plate 18 forms a substantially straight angle with the bottom wall 16 and transversely closes the end of the U-shape. connecting plate 18 extends from one fin 20, 21 to the other by covering them and marrying at least a part of their shape. It is provided with two orifices 42 each arranged coaxially with the holes 40 of the fins. Thus, as the connecting plate covers each fin 38, the insert 10 has areas of double thickness 41 sheet which increases the rigidity of the insert at this location.
En référence à la figure 2, l'insert 10 est représenté dans sa forme développée, c'est-à-dire que tous les pans de tôle de l'insert sont dans un état non plié. On distingue notamment la plaque de liaison 18 qui est destinée à être repliée sur les ailettes 20 et 21 .  Referring to Figure 2, the insert 10 is shown in its expanded form, i.e., all the sheet metal sections of the insert are in an unfolded state. One distinguishes in particular the connecting plate 18 which is intended to be folded over the fins 20 and 21.
Conformément à la figure 3, la plaque de liaison de l'insert 10 est fixée à la platine 44 d'un absorbeur de chocs 46 au moyen de deux vis 48. La platine 44 de l'absorbeur de chocs 46 est reliée directement à la face avant 47 du véhicule. L'insert 10 est surmoulé avec l'absorbeur de chocs 46, mais pourrait aussi être surmoulé avec d'autres parties de la face avant du véhicule. Ainsi en cas de chocs assurance notamment, l'insert 10 et l'absorbeur de chocs 46, sont adaptés pour se déformer plastiquement de manière conjointe et simultanée en prenant appui sur la face avant 47 du véhicule.  According to FIG. 3, the connecting plate of the insert 10 is fixed to the plate 44 of a shock absorber 46 by means of two screws 48. The plate 44 of the shock absorber 46 is connected directly to the front face 47 of the vehicle. The insert 10 is overmolded with the shock absorber 46, but could also be overmolded with other parts of the front face of the vehicle. Thus, in the event of insurance shocks in particular, the insert 10 and the shock absorber 46 are adapted to deform plastically jointly and simultaneously by bearing on the front face 47 of the vehicle.
L'insert n'est pas limité aux modes de réalisation présentés ci-dessus et d'autres modes de réalisation apparaîtront clairement à l'homme du métier. Il est notamment possible de faire varier la forme générale des pans de tôle de l'insert ou de faire varier la forme des ailettes destinées à reprendre les efforts et à les transmettre à la platine de l'absorbeur de chocs ou directement à la face avant du véhicule. Les ailettes pourraient notamment prendre la forme de simples languettes ou dents repliées, qui seraient destinées à être surmoulées avec l'absorbeur de chocs ou avec la face avant du véhicule. On peut aussi prévoir que la douille a une forme de cylindre. A cet effet, l'insert forme un logement tubulaire muni par exemple d'ouvertures prévues pour faciliter la fixation de la douille. Egalement, pour simplifier la fabrication, on peut envisager que l'insert ne prévoit pas de zone de faiblesse. The insert is not limited to the embodiments presented above and other embodiments will become apparent to those skilled in the art. It is in particular possible to vary the general shape of the sheet metal sections of the insert or to make vary the shape of the fins designed to absorb the forces and transmit them to the plate of the shock absorber or directly to the front of the vehicle. The fins could in particular take the form of simple tongues or folded teeth, which would be intended to be overmoulded with the shock absorber or with the front face of the vehicle. It is also possible that the sleeve has a cylinder shape. For this purpose, the insert forms a tubular housing provided for example with openings provided to facilitate the attachment of the socket. Also, to simplify manufacture, it can be envisaged that the insert does not provide a zone of weakness.

Claims

REVENDICATIONS
1 . Insert (10) pour surmoulage d'un moyen de remorquage (12) d'un véhicule, caractérisé en ce que l'insert métallique (10) est réalisé en tôle de façon à accueillir au moins partiellement ledit moyen de remorquage (12), l'insert (10) comportant différents pans de tôle (14, 15, 16), et en ce qu'il comporte au moins une ailette (20, 21 ) formant saillie d'un pan de tôle (14, 15, 16), ladite ailette (20, 21 ) étant agencée pour permettre de reprendre des efforts en traction. 1. Insert (10) for overmoulding a towing means (12) of a vehicle, characterized in that the metal insert (10) is made of sheet metal so as to at least partially accommodate said towing means (12), the insert (10) having different sheet metal sections (14, 15, 16), and in that it comprises at least one fin (20, 21) projecting from a sheet metal section (14, 15, 16). said fin (20, 21) being arranged to allow tensile forces to be resumed.
2. Insert selon la revendication 1 , définissant un axe longitudinal (L) et comportant des zones de faiblesse mécanique (28) aptes à laisser l'insert se raccourcir longitudinalement.  2. Insert according to claim 1, defining a longitudinal axis (L) and having areas of mechanical weakness (28) able to allow the insert to shorten longitudinally.
3. Insert selon la revendication 2, dans lequel la tôle a une épaisseur donnée, les zones de faiblesse mécanique (28) comportent des zones amincies par rapport à l'épaisseur de tôle (14, 15, 16), et lesdites zones amincies formant des lignes de déformation permanente.  3. An insert according to claim 2, wherein the sheet has a given thickness, the zones of mechanical weakness (28) comprise zones which are thinned with respect to the sheet thickness (14, 15, 16), and said thinned zones forming lines of permanent deformation.
4. Insert selon la revendication précédente, dans lequel les zones de faiblesse mécanique (28) comportent au moins un des éléments de la liste suivante, soit une combinaison de ces éléments ; des trous, des évidements, des entailles, des plis marqués, une ondulation, un bossage, des changements d'épaisseur ou de matériau.  4. Insert according to the preceding claim, wherein the areas of mechanical weakness (28) comprise at least one of the following list, a combination of these elements; holes, recesses, notches, marked folds, undulation, bumps, changes in thickness or material.
5. Insert selon au moins l'une des revendications 3 à 4, dans lequel les pans de tôle (14, 15, 16) forment ensemble un profilé en forme de U ou de caisson.  5. Insert according to at least one of claims 3 to 4, wherein the sheet metal sections (14, 15, 16) together form a U-shaped section or box.
6. Insert selon au moins l'une des revendications 3 à 5, dans lequel l'ailette (20, 21 ) comporte des orifices (40) pour recevoir des moyens de fixation (48) au véhicule.  6. Insert according to at least one of claims 3 to 5, wherein the fin (20, 21) has orifices (40) for receiving fastening means (48) to the vehicle.
7. Insert selon au moins l'une des revendications précédentes réalisée par pliage et/ou par emboutissage, ou encore par soudage, ou par rivetage. 7. Insert according to at least one of the preceding claims made by folding and / or stamping, or by welding, or by riveting.
8. Insert selon au moins l'une des revendications précédentes comportant au moins une zone (41 ) ayant une double épaisseur de tôle.  8. Insert according to at least one of the preceding claims comprising at least one zone (41) having a double thickness of sheet.
9. Ensemble d'un insert (10) selon l'une des revendications précédentes et d'un moyen de remorquage (12) caractérisé en ce que le moyen de remorquage (12) est fixé à l'insert, notamment par soudage.  9. An assembly of an insert (10) according to one of the preceding claims and a towing means (12) characterized in that the towing means (12) is fixed to the insert, in particular by welding.
10. Ensemble selon la revendication 9, dans lequel le moyen de remorquage (12) est une douille taraudée.  10. The assembly of claim 9, wherein the towing means (12) is a threaded bushing.
1 1. Absorbeur de chocs (46) pour véhicule, caractérisé en ce qu'il comporte un insert (10) selon au moins l'une quelconque des revendications précédentes, ledit insert (10) étant surmoulé avec l'absorbeur de chocs (46).  1 1. A shock absorber (46) for a vehicle, characterized in that it comprises an insert (10) according to at least one of the preceding claims, said insert (10) being overmolded with the shock absorber (46). ).
12. Absorbeur de chocs selon la revendication précédente dans lequel l'insert est fixé à la structure du véhicule par au moins deux moyens de fixation (48). 12. Shock absorber according to the preceding claim wherein the insert is fixed to the vehicle structure by at least two fastening means (48).
13. Absorbeur de chocs selon la revendication précédente, dans lequel les moyens de fixation sont vissés dans une platine métallique (44) de l'absorbeur de chocs (46) à travers des orifices (40) des ailettes (20, 21 ). 13. Shock absorber according to the preceding claim, wherein the fastening means are screwed into a metal plate (44) of the shock absorber (46) through orifices (40) of the fins (20, 21).
14. Absorbeur de chocs selon l'une des revendications 11 à 14, dans lequel l'insert (10) est dans une position excentrée par rapport à un axe médian (M) de l'absorbeur de chocs (46), l'axe médian étant sensiblement parallèle à l'axe longitudinal de l'insert (10). A shock absorber according to one of claims 11 to 14, wherein the insert (10) is in an eccentric position with respect to a center axis (M) of the shock absorber (46), the axis median being substantially parallel to the longitudinal axis of the insert (10).
EP15733796.5A 2014-06-09 2015-06-04 Metal insert for a vehicle towing means Withdrawn EP3152071A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1455199A FR3021921B1 (en) 2014-06-09 2014-06-09 METALLIC INSERT FOR MEANS OF VEHICLE TOWING
PCT/FR2015/051479 WO2015189500A1 (en) 2014-06-09 2015-06-04 Metal insert for a vehicle towing means

Publications (1)

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EP3152071A1 true EP3152071A1 (en) 2017-04-12

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Application Number Title Priority Date Filing Date
EP15733796.5A Withdrawn EP3152071A1 (en) 2014-06-09 2015-06-04 Metal insert for a vehicle towing means

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EP (1) EP3152071A1 (en)
FR (1) FR3021921B1 (en)
WO (1) WO2015189500A1 (en)

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Publication number Priority date Publication date Assignee Title
CN110167769B (en) * 2016-12-16 2023-10-20 Sabic环球技术有限责任公司 Hybrid Traction Bumper Beam Assembly
FR3074750B1 (en) * 2017-12-11 2020-07-10 Compagnie Plastic Omnium SHOCK ABSORBING SYSTEM FOR A MOTOR VEHICLE
DE102022117602A1 (en) 2022-07-14 2024-01-25 Benteler Automobiltechnik Gmbh Bumper arrangement

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US7290783B2 (en) * 2003-11-21 2007-11-06 Shape Corporation Towing apparatus with energy absorber
FR2866830B1 (en) * 2004-02-27 2008-08-08 Peguform France BUMPER FOR VEHICLE COMPRISING AN INSERT FOR RECEIVING A TOWING RING
JP5852403B2 (en) * 2011-10-21 2016-02-03 アイシン精機株式会社 Bumper device for vehicle and crash box applied to the bumper device for vehicle

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FR3021921A1 (en) 2015-12-11
WO2015189500A1 (en) 2015-12-17

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