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WO2011077021A1 - Device for attaching a plate against a flat face of a fixed motor vehicle component - Google Patents

Device for attaching a plate against a flat face of a fixed motor vehicle component Download PDF

Info

Publication number
WO2011077021A1
WO2011077021A1 PCT/FR2010/052522 FR2010052522W WO2011077021A1 WO 2011077021 A1 WO2011077021 A1 WO 2011077021A1 FR 2010052522 W FR2010052522 W FR 2010052522W WO 2011077021 A1 WO2011077021 A1 WO 2011077021A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate
nut
fixed part
hole
arm
Prior art date
Application number
PCT/FR2010/052522
Other languages
French (fr)
Inventor
Julien Brossaud
Original Assignee
Peugeot Citroën Automobiles SA
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 Peugeot Citroën Automobiles SA filed Critical Peugeot Citroën Automobiles SA
Priority to CN201080064828.3A priority Critical patent/CN102791564B/en
Priority to EP10805271A priority patent/EP2516243A1/en
Publication of WO2011077021A1 publication Critical patent/WO2011077021A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/082—Engine compartments
    • B62D25/084—Radiator supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D27/00—Connections between superstructure or understructure sub-units
    • B62D27/06—Connections between superstructure or understructure sub-units readily releasable
    • B62D27/065—Connections between superstructure or understructure sub-units readily releasable using screwthread
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
    • B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
    • 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
    • F16B5/025—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 specially designed to compensate for misalignement or to eliminate unwanted play

Definitions

  • the present invention relates to a device for fixing a wafer against a flat face of a fixed part.
  • the invention relates in particular to the application of such a device to the attachment of a support plate against a fixed part of the body of a motor vehicle, such as a reinforcement of the front wall.
  • Figure 1 is a view showing the front facade of the body of a motor vehicle.
  • the reference 1 designates each of the two front facade reinforcements of the body, arranged symmetrically with respect to the longitudinal axis of the body.
  • Figures 2 and 3 each show the top of a front facade reinforcement 1. Under the flat face of this reinforcement 1 is disposed a support plate 2.
  • This plate 2 is previously positioned facing the flat face of the front facade reinforcement 1 by means of two screws 3, 4 engaged in two respective holes of the reinforcement 1 and each engaged with a welded nut under the wafer 2.
  • Figures 2 and 3 show that the reinforcement 1 has two other holes 5, 6 for the passage of screws to engage in a hole 7 made in the wafer 2 and engage with a nut 8 welded under this wafer 2.
  • the object of the present invention is to create a device to avoid the case shown in Figure 2 in which the plate 2 is incorrectly positioned relative to the fixed part 1.
  • a device for fixing a wafer against a flat face of a fixed part this wafer having been previously positioned opposite said flat face of the fixed part by means of at least one a screw engaged in a first hole of this fixed part and engaged with a first nut welded to the wafer so as to leave it a certain freedom of movement with respect to the fixed part, the wafer comprising at least a second nut welded to this plate for receiving a screw passing through a second hole of the fixed part
  • said device being characterized in that it comprises an arm movable in a direction perpendicular to the plane of the flat face of the fixed part, this arm carrying a bearing piece having a surface adapted to bear against the plate and clamp it against the flat face of the fixed part and a recess for receiving the second welded nut the wafer, the flanks of this recess being adapted to cooperate frictionally with said second nut for adjusting the position thereof facing the second hole of the fixture before the clamping plate against the stationary
  • flanks of the recess of the support piece can during movement of the arm move the nut welded to the plate to a position in which the nut is located opposite the hole of the fixed part.
  • said support piece is made integral with said arm by means for guiding said support piece in translation relative to said arm in a predetermined stroke, against the action of at least one return spring disposed between the support member and the arm.
  • a flank of the recess of the support piece bears against the nut of the plate under the action of the force exerted by the spring of reminder to adjust the position of the nut.
  • the support piece bears against the plate under the action of the force exerted by the arm of the device to clamp the plate against the fixed part.
  • the stroke of displacement of the support member relative to the arm is adjustable in particular by means of at least one screw screwed into a tapping formed in the arm, so that the end of the screw constitutes a stop of limit switch.
  • the return force of the spring is sufficient to overcome the forces generated during the friction between the flanks of said recess of the bearing piece and the second nut.
  • said recess is made between two parts spaced apart from said support piece whose ends form said surface adapted to bear against the plate, the sidewall of each of said parts being inclined relative to in said direction perpendicular to the plane of the planar face of the fixed part.
  • the depth of the recess is at least equal to the axial length of the second nut and the distance between the two spaced portions measured in the plane of their ends is greater than the width of the second nut.
  • the invention also relates to the application of the device according to the invention to the attachment of a plate against a fixed part of the body of a motor vehicle.
  • said fixed part is a reinforcement of the front face and the device is part of a template which is adapted to preposition a plate against each of the two front face reinforcements, said template comprising a movable part for controlling the displacement arm in a direction perpendicular to the plane plane of the fixed part.
  • said template comprises a first indexing pilot adapted to engage in a hole made in the front facade reinforcement and in a hole of the plate located opposite the hole of this reinforcement and a second indexing pilot adapted for engaging in said second hole of the front facade reinforcement and traversing said second welded nut to said wafer to prevent rotation of said wafer relative to said front facade reinforcement.
  • FIG. 4 is a perspective view of the device according to the invention.
  • FIG. 5 is a perspective view of the device represented in FIG. 4, the arm of which is in operational position under a plate and a front facade reinforcement;
  • FIG. 6 is a sectional view showing a part of the front facade reinforcement, a part of the plate and the support piece of the device according to the invention showing the cooperation between a side of the support piece and the nut welded to the plate.
  • Figures 4 and 5 show a device for fixing a plate 2 against the lower planar face of a front facade reinforcement 1.
  • This wafer 2 has previously been positioned opposite the flat face of the reinforcement 1 by means of the two screws 3, 4 engaged as shown in FIGS. 2 and 3 in holes of the reinforcement 1 and engaged with non-represented nuts welded to the plate 2 so as to leave it a certain freedom of movement relative to the reinforcement 1.
  • the plate 2 also comprises another nut 8 welded to this plate for receiving a screw passing through a hole 6 of the front facade reinforcement 1.
  • this device comprises an arm 10 movable in a direction D (see FIG. 5) perpendicular to the plane of the flat face of the reinforcement 1.
  • This arm 10 carries a support member January 1 having a surface January 1 adapted to come into abutment (see Figure 5) against the plate 2 and clamp it against the flat face of the reinforcement 1.
  • This support piece 1 1 also comprises a recess 12 for receiving the nut 8 welded to the wafer 2.
  • flanks 13, 14 of this recess 12 are adapted to cooperate by friction with the nut 8 to adjust the position thereof opposite the hole 6 (see FIG. 2) of the reinforcement 1, before clamping the plate 2 against this reinforcement 1.
  • the support part 1 1 is made integral with the arm 10 by means making it possible to guide this support piece in translation relative to the arm 10 in a predetermined stroke, against the action of at least one return spring 15 ( see Figure 4) arranged between the support part 1 1 and the arm 10.
  • the guide in translation of the support member 1 1 with respect to the arm 10 is obtained thanks to a housing 16 of U-shaped cross-section engaged on a part 10a of the arm 10 extending in a direction perpendicular to the direction D of movement of the arm 10.
  • This housing 16 is made in a part 17 integral with the support piece
  • the translation travel of the assembly formed by the support part 1 1 and the part 17 relative to the part 10a of the arm 10 is adjustable by means of at least one screw 18 screwed into a tapping made in the part 10a of the arm 10, so that the end of the screw constitutes a limit stop for the assembly 1 1, 17 above.
  • the restoring force exerted by the spring 15 is sufficient to overcome the forces generated during the friction between the flanks 13, 14 of the recess 12 of the support piece 11. and the nut 8, welded under the wafer 2.
  • the recess 12 is formed between two spaced portions 19, 20 of the support part 1 1, the ends 1 1 a form the surface adapted to bear against the plate 2.
  • flank 13, 14 of each of the two parts above is inclined with respect to the direction D perpendicular to the plane of the plane face of the front facade reinforcement 1.
  • the depth of the recess 12 is at least equal to the axial length of the nut 8 and the distance between the two spaced portions 19, 20 measured in the plane of their ends 11a is greater than the width of the nut 8.
  • the device shown in FIGS. 4 and 5 is part of a template itself known which is adapted to preposition a wafer 2 against each of the two front face reinforcements 1.
  • This template comprises a movable part for controlling the displacement of the arm 10 in the direction D perpendicular to the plane of the plane face of the front facade reinforcement 1.
  • This template comprises, as shown in FIG. 5, a first indexing driver 21 adapted to engage in the hole 5 (see FIG. 3) made in the front facade reinforcement 1 and in the hole 7 of the plate 2 located in view of the hole 5 of the reinforcement 1 and a second indexing driver 22 adapted to engage in the hole 6 of the front facade reinforcement 1 and through the hole of the nut 8 welded to said plate 2 to prevent rotation of this plate 2 relative to the front facade reinforcement 1.
  • the position of the support member January 1 is perfectly defined relative to the longitudinal axis X, transverse Y and vertical Z of the vehicle.
  • the arm 10 moves in a direction D which is parallel to the vertical axis Z of the vehicle reference frame.
  • FIG. 6 shows that when the position of the nut 8 is offset with respect to its correct position, one of the inclined sides of the recess 12 of the support piece 11 will touch the nut 8.
  • the arm 10 compresses the spring 15 between the support member 1 1 and the arm 10 to a position in which an abutment limits the travel of the arm 10 relative to the support piece 1 1.
  • this support member 1 1 becomes integral with the arm 10 and applies on the plate 2 a force which clamps against the reinforcement 1.
  • the indexing pilots 21, 22 can then be engaged in the holes 5 and 6 of the reinforcement 1.
  • the final fixing of the plate 2 against the reinforcement 1 can then be achieved by tightening the screws 3 and 4 (see Figures 2 and 3).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Jigs For Machine Tools (AREA)
  • Body Structure For Vehicles (AREA)
  • Connection Of Plates (AREA)

Abstract

Device for attaching a plate (2) against a flat face of a fixed component (1), this plate (2) having already been positioned facing said flat face of said fixed component (1) using at least one screw engaged in a first hole in this fixed component (1) and meshing with a first nut welded to the plate (2) in such a way as to leave the latter a certain freedom of movement with respect to the fixed component (1), the plate (2) comprising at least a second nut (8) welded to this plate (2) and intended to accept a screw passing through a second hole in the fixed component (1), said device being characterized in that it comprises an arm (10) able to move in a direction (D) perpendicular to the plane of the flat face of the fixed component (1), this arm (10) bearing a bearing piece (11) comprising a surface designed to come to bear against the plate (2) and clamp it against the flat face of the fixed component (1) and a cavity (12) to accept the second nut (8) welded to the plate (2), the flanks (13, 14) of this cavity (12) being designed to interact frictionally with said second nut (8) so as to adjust the position thereof opposite the second hole of the fixed component (1) before the plate (2) is clamped against this fixed component (1).

Description

DISPOSITIF POUR FIXER UNE PLAQUETTE CONTRE UNE PLANE D ' UNE PIECE  DEVICE FOR FASTENING A PLATE AGAINST A PLANE OF A PIECE
FIXE D ' UN  FIXED BY ONE
VEHICULE AUTOMOBILE  MOTOR VEHICLE
La présente invention concerne un dispositif pour fixer une plaquette contre une face plane d'une pièce fixe. The present invention relates to a device for fixing a wafer against a flat face of a fixed part.
L'invention concerne notamment l'application d'un tel dispositif à la fixation d'une plaquette d'appui contre une pièce fixe de la caisse d'un véhicule automobile, telle qu'un renfort de la façade avant.  The invention relates in particular to the application of such a device to the attachment of a support plate against a fixed part of the body of a motor vehicle, such as a reinforcement of the front wall.
La figure 1 est une vue montrant la façade avant de la caisse d'un véhicule automobile.  Figure 1 is a view showing the front facade of the body of a motor vehicle.
La référence 1 désigne chacun des deux renforts de façade avant de la caisse, disposés symétriquement par rapport à l'axe longitudinal de la caisse.  The reference 1 designates each of the two front facade reinforcements of the body, arranged symmetrically with respect to the longitudinal axis of the body.
Les figures 2 et 3 montrent chacune le dessus d'un renfort de façade avant 1 . Sous la face plane de ce renfort 1 est disposée une plaquette d'appui 2.  Figures 2 and 3 each show the top of a front facade reinforcement 1. Under the flat face of this reinforcement 1 is disposed a support plate 2.
Cette plaquette 2 est préalablement positionnée en regard de la face plane du renfort de façade avant 1 au moyen de deux vis 3, 4 engagées dans deux trous respectifs du renfort 1 et en prise chacune avec un écrou soudé sous la plaquette 2.  This plate 2 is previously positioned facing the flat face of the front facade reinforcement 1 by means of two screws 3, 4 engaged in two respective holes of the reinforcement 1 and each engaged with a welded nut under the wafer 2.
Ces deux vis 3, 4 ne sont pas serrées de façon à laisser à la plaquette 2 une certaine liberté de mouvement par rapport au renfort 1 .  These two screws 3, 4 are not tightened so as to leave the plate 2 a certain freedom of movement with respect to the reinforcement 1.
Les figures 2 et 3 montrent que le renfort 1 présente deux autres trous 5, 6 destinés au passage de vis devant s'engager dans un trou 7 réalisé dans la plaquette 2 et venir en prise avec un écrou 8 soudé sous cette plaquette 2.  Figures 2 and 3 show that the reinforcement 1 has two other holes 5, 6 for the passage of screws to engage in a hole 7 made in the wafer 2 and engage with a nut 8 welded under this wafer 2.
En raison de la certaine liberté de mouvement entre la plaquette 2 et le renfort 1 , dans le cas de la figure 2, le trou 7 et l'écrou 8 de la plaquette 2 sont mal positionnés par rapport aux trous 5, 6 du renfort 1 , tandis que dans le cas de la figure 3, le trou de passage de l'écrou 8 et le trou 7 de la plaquette 2 sont bien positionnés par rapport aux trous 6, 5 du renfort 1 .  Due to the freedom of movement between the wafer 2 and the reinforcement 1, in the case of Figure 2, the hole 7 and the nut 8 of the wafer 2 are poorly positioned relative to the holes 5, 6 of the reinforcement 1 , while in the case of FIG. 3, the hole through which the nut 8 and the hole 7 of the wafer 2 are positioned relative to the holes 6, 5 of the reinforcement 1.
Pour prépositionner de façon précise la plaquette 2 par rapport au renfort de façade avant, on utilise un gabarit comportant deux pilotes d'indexation adaptés pour s'engager dans les trous 5 et 6 du renfort 1 . Lorsque la plaquette 2 est mal positionnée par rapport au renfort 1 , comme montré sur la figure 2, l'engagement des deux pilotes d'indexation du gabarit dans le trou 7 et le trou de passage de l'écrou 8 de la plaquette 2 est impossible. To accurately preposition the wafer 2 with respect to the front facade reinforcement, using a template having two indexing drivers adapted to engage in the holes 5 and 6 of the reinforcement 1. When the plate 2 is incorrectly positioned relative to the reinforcement 1, as shown in FIG. 2, the engagement of the two indexing pilots of the template in the hole 7 and the hole for the passage of the nut 8 of the plate 2 is impossible.
Cet engagement des pilotes est en revanche possible dans le cas de la figure 3.  This commitment of the pilots is however possible in the case of Figure 3.
Il est dans ce cas possible de serrer les vis 3 et 4 pour fixer définitivement la plaquette 2 au renfort 1 .  It is in this case possible to tighten the screws 3 and 4 to permanently fix the plate 2 to the reinforcement 1.
Le but de la présente invention est de créer un dispositif permettant d'éviter le cas montré sur la figure 2 dans lequel la plaquette 2 est mal positionnée par rapport à la pièce fixe 1 .  The object of the present invention is to create a device to avoid the case shown in Figure 2 in which the plate 2 is incorrectly positioned relative to the fixed part 1.
Ce but est atteint, selon l'invention, grâce à un dispositif pour fixer une plaquette contre une face plane d'une pièce fixe, cette plaquette ayant été préalablement positionnée en regard de ladite face plane de la pièce fixe au moyen d'au moins une vis engagée dans un premier trou de cette pièce fixe et en prise avec un premier écrou soudé à la plaquette de façon à laisser à celle-ci une certaine liberté de mouvement par rapport à la pièce fixe, la plaquette comportant au moins un deuxième écrou soudé à cette plaquette destiné à recevoir une vis traversant un deuxième trou de la pièce fixe, ledit dispositif étant caractérisé en ce qu'il comprend un bras mobile dans une direction perpendiculaire au plan de la face plane de la pièce fixe, ce bras portant une pièce d'appui comportant une surface adaptée pour venir en appui contre la plaquette et serrer celle-ci contre la face plane de la pièce fixe et un évidement pour recevoir le second écrou soudé à la plaquette, les flancs de cet évidement étant adaptés pour coopérer par friction avec ledit deuxième écrou pour ajuster la position de celui-ci en regard du deuxième trou de la pièce fixe, avant serrage de la plaquette contre cette pièce fixe.  This object is achieved, according to the invention, by means of a device for fixing a wafer against a flat face of a fixed part, this wafer having been previously positioned opposite said flat face of the fixed part by means of at least one a screw engaged in a first hole of this fixed part and engaged with a first nut welded to the wafer so as to leave it a certain freedom of movement with respect to the fixed part, the wafer comprising at least a second nut welded to this plate for receiving a screw passing through a second hole of the fixed part, said device being characterized in that it comprises an arm movable in a direction perpendicular to the plane of the flat face of the fixed part, this arm carrying a bearing piece having a surface adapted to bear against the plate and clamp it against the flat face of the fixed part and a recess for receiving the second welded nut the wafer, the flanks of this recess being adapted to cooperate frictionally with said second nut for adjusting the position thereof facing the second hole of the fixture before the clamping plate against the stationary part.
Ainsi, les flancs de l'évidement de la pièce d'appui peuvent lors du déplacement du bras déplacer l'écrou soudé à la plaquette vers une position dans laquelle cet écrou est situé en regard du trou de la pièce fixe.  Thus, the flanks of the recess of the support piece can during movement of the arm move the nut welded to the plate to a position in which the nut is located opposite the hole of the fixed part.
II est alors possible d'engager dans le trou de la pièce fixe et dans le trou de passage de l'écrou un pilote d'indexation qui permet de bloquer en rotation la plaquette par rapport à la pièce fixe, puis de serrer la ou les vis pour fixer définitivement la plaquette à la pièce fixe. Dans une version préférée de l'invention, ladite pièce d'appui est rendue solidaire dudit bras par des moyens permettant de guider en translation cette pièce d'appui par rapport audit bras selon une course prédéterminée, contre l'action d'au moins un ressort de rappel disposé entre la pièce d'appui et le bras. It is then possible to engage in the hole of the fixed part and in the hole of passage of the nut an indexing pilot which makes it possible to block in rotation the plate relative to the fixed part, then to tighten the screw to permanently fix the plate to the fixed part. In a preferred version of the invention, said support piece is made integral with said arm by means for guiding said support piece in translation relative to said arm in a predetermined stroke, against the action of at least one return spring disposed between the support member and the arm.
Ainsi, lors d'une première phase de fonctionnement du dispositif selon l'invention, un flanc de l'évidement de la pièce d'appui prend appui sur l'écrou de la plaquette sous l'action de la force exercée par le ressort de rappel pour ajuster la position de l'écrou.  Thus, during a first phase of operation of the device according to the invention, a flank of the recess of the support piece bears against the nut of the plate under the action of the force exerted by the spring of reminder to adjust the position of the nut.
En fin de course de compression du ressort, la pièce d'appui prend appui sur la plaquette sous l'action de la force exercée par le bras du dispositif pour serrer la plaquette contre la pièce fixe.  At the end of the compression stroke of the spring, the support piece bears against the plate under the action of the force exerted by the arm of the device to clamp the plate against the fixed part.
De préférence, la course de déplacement de la pièce d'appui par rapport au bras est réglable notamment au moyen d'au moins une vis vissée dans un taraudage réalisé dans le bras, de sorte que l'extrémité de la vis constitue une butée de fin de course.  Preferably, the stroke of displacement of the support member relative to the arm is adjustable in particular by means of at least one screw screwed into a tapping formed in the arm, so that the end of the screw constitutes a stop of limit switch.
De préférence également, la force de rappel du ressort est suffisante pour vaincre les efforts engendrés lors de la friction entre les flancs dudit évidement de la pièce d'appui et le second écrou.  Also preferably, the return force of the spring is sufficient to overcome the forces generated during the friction between the flanks of said recess of the bearing piece and the second nut.
Dans un mode de réalisation préféré de l'invention, ledit évidement est réalisé entre deux parties espacées de ladite pièce d'appui dont les extrémités forment ladite surface adaptée pour venir en appui contre la plaquette, le flanc de chacune desdites parties étant incliné par rapport à ladite direction perpendiculaire au plan de la face plane de la pièce fixe.  In a preferred embodiment of the invention, said recess is made between two parts spaced apart from said support piece whose ends form said surface adapted to bear against the plate, the sidewall of each of said parts being inclined relative to in said direction perpendicular to the plane of the planar face of the fixed part.
L'inclinaison de ces flancs permet lors du déplacement de la pièce d'appui vers la plaquette d'appliquer sur l'écrou une force présentant une composante parallèle au plan de la plaquette qui déplace l'écrou vers une position centrée par rapport au trou de la pièce fixe.  The inclination of these flanks makes it possible, during the displacement of the support piece towards the plate, to apply to the nut a force having a component parallel to the plane of the plate that moves the nut towards a position centered with respect to the hole. of the fixed part.
De préférence, la profondeur de l'évidement est au moins égale à la longueur axiale du deuxième écrou et la distance comprise entre les deux parties espacées mesurée dans le plan de leurs extrémités est supérieure à la largeur du deuxième écrou. Selon un autre aspect, l'invention concerne également l'application du dispositif selon l'invention à la fixation d'une plaquette contre une pièce fixe de la caisse d'un véhicule automobile. Preferably, the depth of the recess is at least equal to the axial length of the second nut and the distance between the two spaced portions measured in the plane of their ends is greater than the width of the second nut. According to another aspect, the invention also relates to the application of the device according to the invention to the attachment of a plate against a fixed part of the body of a motor vehicle.
Dans une application préférée, ladite pièce fixe est un renfort de la façade avant et le dispositif fait partie d'un gabarit qui est adapté pour prépositionner une plaquette contre chacun des deux renforts de façade avant, ledit gabarit comportant une partie mobile pour commander le déplacement du bras dans une direction perpendiculaire au plan de la face plane de la pièce fixe.  In a preferred application, said fixed part is a reinforcement of the front face and the device is part of a template which is adapted to preposition a plate against each of the two front face reinforcements, said template comprising a movable part for controlling the displacement arm in a direction perpendicular to the plane plane of the fixed part.
De préférence, ledit gabarit comporte un premier pilote d'indexation adapté pour s'engager dans un trou réalisé dans le renfort de façade avant et dans un trou de la plaquette situé en regard du trou de ce renfort et un second pilote d'indexation adapté pour s'engager dans ledit deuxième trou du renfort de façade avant et traverser ledit deuxième écrou soudé à ladite plaquette afin d'empêcher la rotation de cette plaquette par rapport audit renfort de façade avant.  Preferably, said template comprises a first indexing pilot adapted to engage in a hole made in the front facade reinforcement and in a hole of the plate located opposite the hole of this reinforcement and a second indexing pilot adapted for engaging in said second hole of the front facade reinforcement and traversing said second welded nut to said wafer to prevent rotation of said wafer relative to said front facade reinforcement.
D'autres particularités et avantages de l'invention apparaîtront encore tout au long de la description ci-après.  Other features and advantages of the invention will become apparent throughout the description below.
Aux dessins annexés, donnés à titre d'exemples, non limitatifs :  In the accompanying drawings, given by way of nonlimiting examples:
- la figure 4 est une vue en perspective du dispositif selon l'invention,  FIG. 4 is a perspective view of the device according to the invention,
- la figure 5 est une vue en perspective du dispositif représenté sur la figure 4 dont le bras est en position opérationnelle sous une plaquette et un renfort de façade avant,  FIG. 5 is a perspective view of the device represented in FIG. 4, the arm of which is in operational position under a plate and a front facade reinforcement;
- la figure 6 est une vue en coupe montrant une partie du renfort de façade avant, une partie de la plaquette et la pièce d'appui du dispositif selon l'invention montrant la coopération entre un flanc de la pièce d'appui et l'écrou soudé à la plaquette.  FIG. 6 is a sectional view showing a part of the front facade reinforcement, a part of the plate and the support piece of the device according to the invention showing the cooperation between a side of the support piece and the nut welded to the plate.
Les figures 4 et 5 représentent un dispositif pour fixer une plaquette 2 contre la face plane inférieure d'un renfort de façade avant 1 .  Figures 4 and 5 show a device for fixing a plate 2 against the lower planar face of a front facade reinforcement 1.
Cette plaquette 2 a été préalablement positionnée en regard de la face plane du renfort 1 au moyen des deux vis 3, 4 engagées comme montré sur les figures 2 et 3 dans des trous du renfort 1 et en prise avec des écrous non représentés soudés à la plaquette 2 de façon à laisser à celle-ci une certaine liberté de mouvement par rapport au renfort 1 . Comme également montré par les figures 2 et 3, la plaquette 2 comporte également un autre écrou 8 soudé à cette plaquette destiné à recevoir une vis traversant un trou 6 du renfort de façade avant 1 . This wafer 2 has previously been positioned opposite the flat face of the reinforcement 1 by means of the two screws 3, 4 engaged as shown in FIGS. 2 and 3 in holes of the reinforcement 1 and engaged with non-represented nuts welded to the plate 2 so as to leave it a certain freedom of movement relative to the reinforcement 1. As also shown in Figures 2 and 3, the plate 2 also comprises another nut 8 welded to this plate for receiving a screw passing through a hole 6 of the front facade reinforcement 1.
Dans le cas de la figure 2, le trou de passage de l'écrou 8 de la plaquette 2 est mal positionné par rapport au trou 6 du renfort 1 .  In the case of FIG. 2, the passage hole of the nut 8 of the wafer 2 is poorly positioned with respect to the hole 6 of the reinforcement 1.
Le but du dispositif représenté sur les figures 4 et 5 est de remédier à cette situation.  The purpose of the device shown in Figures 4 and 5 is to remedy this situation.
Conformément à l'invention, ce dispositif comprend un bras 10 mobile dans une direction D (voir figure 5) perpendiculaire au plan de la face plane du renfort 1 .  According to the invention, this device comprises an arm 10 movable in a direction D (see FIG. 5) perpendicular to the plane of the flat face of the reinforcement 1.
Ce bras 10 porte une pièce d'appui 1 1 comportant une surface 1 1 a adaptée pour venir en appui (voir figure 5) contre la plaquette 2 et serrer celle-ci contre la face plane du renfort 1 .  This arm 10 carries a support member January 1 having a surface January 1 adapted to come into abutment (see Figure 5) against the plate 2 and clamp it against the flat face of the reinforcement 1.
Cette pièce d'appui 1 1 comprend également un évidement 12 pour recevoir l'écrou 8 soudé à la plaquette 2.  This support piece 1 1 also comprises a recess 12 for receiving the nut 8 welded to the wafer 2.
Les flancs 13, 14 de cet évidement 12 sont adaptés pour coopérer par friction avec l'écrou 8 pour ajuster la position de celui-ci en regard du trou 6 (voir figure 2) du renfort 1 , avant serrage de la plaquette 2 contre ce renfort 1 .  The flanks 13, 14 of this recess 12 are adapted to cooperate by friction with the nut 8 to adjust the position thereof opposite the hole 6 (see FIG. 2) of the reinforcement 1, before clamping the plate 2 against this reinforcement 1.
La pièce d'appui 1 1 est rendue solidaire du bras 10 par des moyens permettant de guider en translation cette pièce d'appui par rapport au bras 10 selon une course prédéterminée, contre l'action d'au moins un ressort de rappel 15 (voir figure 4) disposé entre la pièce d'appui 1 1 et le bras 10.  The support part 1 1 is made integral with the arm 10 by means making it possible to guide this support piece in translation relative to the arm 10 in a predetermined stroke, against the action of at least one return spring 15 ( see Figure 4) arranged between the support part 1 1 and the arm 10.
Dans l'exemple représenté sur les figures 4 et 5, le guidage en translation de la pièce d'appui 1 1 par rapport au bras 10 est obtenu grâce à un logement 16 de section transversale en U engagé sur une partie 10a du bras 10 s'étendant dans une direction perpendiculaire à la direction D de déplacement du bras 10.  In the example shown in FIGS. 4 and 5, the guide in translation of the support member 1 1 with respect to the arm 10 is obtained thanks to a housing 16 of U-shaped cross-section engaged on a part 10a of the arm 10 extending in a direction perpendicular to the direction D of movement of the arm 10.
Ce logement 16 est réalisé dans une partie 17 solidaire de la pièce d'appui This housing 16 is made in a part 17 integral with the support piece
1 1 . 1 1.
La course de la translation de l'ensemble constitué par la pièce d'appui 1 1 et de la partie 17 par rapport à la partie 10a du bras 10 est réglable au moyen d'au moins une vis 18 vissée dans un taraudage réalisé dans la partie 10a du bras 10, de sorte que l'extrémité de la vis constitue une butée de fin de course pour l'ensemble 1 1 , 17 ci-dessus. Comme on l'expliquera plus en détail plus loin, la force de rappel exercée par le ressort 15 est suffisante pour vaincre les efforts engendrés lors de la friction entre les flancs 13, 14 de l'évidement 12 de la pièce d'appui 1 1 et l'écrou 8, soudé sous la plaquette 2. The translation travel of the assembly formed by the support part 1 1 and the part 17 relative to the part 10a of the arm 10 is adjustable by means of at least one screw 18 screwed into a tapping made in the part 10a of the arm 10, so that the end of the screw constitutes a limit stop for the assembly 1 1, 17 above. As will be explained in more detail below, the restoring force exerted by the spring 15 is sufficient to overcome the forces generated during the friction between the flanks 13, 14 of the recess 12 of the support piece 11. and the nut 8, welded under the wafer 2.
Dans l'exemple montré sur les figures 4 et 5, l'évidement 12 est réalisé entre deux parties espacées 19, 20 de la pièce d'appui 1 1 dont les extrémités 1 1 a forment la surface adaptée pour venir en appui contre la plaquette 2.  In the example shown in Figures 4 and 5, the recess 12 is formed between two spaced portions 19, 20 of the support part 1 1, the ends 1 1 a form the surface adapted to bear against the plate 2.
Le flanc 13, 14 de chacune des deux parties ci-dessus est incliné par rapport à la direction D perpendiculaire au plan de la face plane du renfort de façade avant 1 .  The flank 13, 14 of each of the two parts above is inclined with respect to the direction D perpendicular to the plane of the plane face of the front facade reinforcement 1.
La profondeur de l'évidement 12 est au moins égale à la longueur axiale de l'écrou 8 et la distance comprise entre les deux parties espacées 19, 20 mesurée dans le plan de leurs extrémités 1 1 a est supérieure à la largeur de l'écrou 8.  The depth of the recess 12 is at least equal to the axial length of the nut 8 and the distance between the two spaced portions 19, 20 measured in the plane of their ends 11a is greater than the width of the nut 8.
Le dispositif représenté sur les figures 4 et 5 fait partie d'un gabarit en lui-même connu qui est adapté pour prépositionner une plaquette 2 contre chacun des deux renforts de façade avant 1 .  The device shown in FIGS. 4 and 5 is part of a template itself known which is adapted to preposition a wafer 2 against each of the two front face reinforcements 1.
Ce gabarit comporte une partie mobile pour commander le déplacement du bras 10 dans la direction D perpendiculaire au plan de la face plane du renfort de façade avant 1 .  This template comprises a movable part for controlling the displacement of the arm 10 in the direction D perpendicular to the plane of the plane face of the front facade reinforcement 1.
Ce gabarit comporte comme montré sur la figure 5, un premier pilote d'indexation 21 adapté pour s'engager dans le trou 5 (voir figure 3) réalisé dans le renfort de façade avant 1 et dans le trou 7 de la plaquette 2 situé en regard du trou 5 du renfort 1 et un second pilote d'indexation 22 adapté pour s'engager dans le trou 6 du renfort de façade avant 1 et traverser le trou de l'écrou 8 soudé à ladite plaquette 2 afin d'empêcher la rotation de cette plaquette 2 par rapport au renfort de façade avant 1 .  This template comprises, as shown in FIG. 5, a first indexing driver 21 adapted to engage in the hole 5 (see FIG. 3) made in the front facade reinforcement 1 and in the hole 7 of the plate 2 located in view of the hole 5 of the reinforcement 1 and a second indexing driver 22 adapted to engage in the hole 6 of the front facade reinforcement 1 and through the hole of the nut 8 welded to said plate 2 to prevent rotation of this plate 2 relative to the front facade reinforcement 1.
On va maintenant expliquer le fonctionnement du dispositif que l'on vient de décrire.  We will now explain the operation of the device that has just been described.
On suppose au départ que la plaquette 2 est dans la situation représentée sur la figure 2 et est mal positionnée par rapport au renfort 1 , ce qui rend impossible l'introduction des deux pilotes d'indexation 21 , 22 dans le trou 7 et le trou de passage de l'écrou 8 de la plaquette 2. Pour remédier à cette situation, on engage la partie 10a du bras 10 du dispositif dans l'espace situé sous la plaquette 2 et le renfort 1 , comme montré par la figure 5. It is assumed initially that the wafer 2 is in the situation shown in Figure 2 and is poorly positioned relative to the reinforcement 1, which makes it impossible to introduce the two indexing drivers 21, 22 in the hole 7 and the hole passage of the nut 8 of the plate 2. To remedy this situation, the part 10a of the arm 10 of the device is engaged in the space under the wafer 2 and the reinforcement 1, as shown in FIG.
Dans cette position la pièce d'appui 1 1 est située sous l'écrou 8.  In this position the support piece January 1 is located under the nut 8.
Etant donné que le bras 10 fait partie d'un gabarit qui est référencié par rapport au référentiel du véhicule, la position de la pièce d'appui 1 1 est parfaitement définie par rapport aux axes longitudinal X, transversal Y et vertical Z du véhicule.  Since the arm 10 is part of a template which is referenced with respect to the reference system of the vehicle, the position of the support member January 1 is perfectly defined relative to the longitudinal axis X, transverse Y and vertical Z of the vehicle.
Lors du fonctionnement du dispositif le bras 10 se déplace dans une direction D qui est parallèle à l'axe vertical Z du référentiel du véhicule.  During operation of the device the arm 10 moves in a direction D which is parallel to the vertical axis Z of the vehicle reference frame.
La figure 6 montre que lorsque la position de l'écrou 8 est décalée par rapport à sa position correcte l'un 13 des flancs inclinés de l'évidement 12 de la pièce d'appui 1 1 va toucher l'écrou 8.  FIG. 6 shows that when the position of the nut 8 is offset with respect to its correct position, one of the inclined sides of the recess 12 of the support piece 11 will touch the nut 8.
Du fait de l'inclinaison de ce flanc 13, le déplacement de celui-ci dans la direction verticale D va exercer sur l'écrou 8 une force qui va déplacer celui-ci dans une direction D1 située dans le plan des axes X et Y qui va centrer l'écrou 8 par rapport au trou 6 du renfort 1 .  Due to the inclination of this flank 13, the displacement thereof in the vertical direction D will exert on the nut 8 a force which will move it in a direction D1 located in the plane of the X and Y axes which will center the nut 8 with respect to the hole 6 of the reinforcement 1.
En fin de course, les extrémités 1 1 a de la pièce d'appui 1 1 s'appuient sous la plaquette 2.  At the end of the stroke, the ends 1 1 a of the support part 1 1 rest under the wafer 2.
En poursuivant son déplacement dans la direction D, le bras 10 comprime le ressort 15 compris entre la pièce d'appui 1 1 et le bras 10 jusqu'à une position dans laquelle une butée limite la course de déplacement du bras 10 par rapport à la pièce d'appui 1 1 .  Continuing its movement in the direction D, the arm 10 compresses the spring 15 between the support member 1 1 and the arm 10 to a position in which an abutment limits the travel of the arm 10 relative to the support piece 1 1.
A partir de cette position, cette pièce d'appui 1 1 devient solidaire du bras 10 et applique sur la plaquette 2 une force qui la serre contre le renfort 1 .  From this position, this support member 1 1 becomes integral with the arm 10 and applies on the plate 2 a force which clamps against the reinforcement 1.
Les pilotes d'indexation 21 , 22 peuvent alors être engagés dans les trous 5 et 6 du renfort 1 .  The indexing pilots 21, 22 can then be engaged in the holes 5 and 6 of the reinforcement 1.
La fixation définitive de la plaquette 2 contre le renfort 1 peut ensuite être réalisée en serrant les vis 3 et 4 (voir figures 2 et 3).  The final fixing of the plate 2 against the reinforcement 1 can then be achieved by tightening the screws 3 and 4 (see Figures 2 and 3).

Claims

REVENDICATIONS
1 . Dispositif pour fixer une plaquette (2) contre une face plane d'une pièce fixe (1 ), cette plaquette (2) ayant été préalablement positionnée en regard de ladite face plane de la pièce fixe (1 ) au moyen d'au moins une vis (3, 4) engagée dans un premier trou de cette pièce fixe (1 ) et en prise avec un premier écrou soudé à la plaquette (2) de façon à laisser à celle-ci une certaine liberté de mouvement par rapport à la pièce fixe (1 ), la plaquette (2) comportant au moins un deuxième écrou (8) soudé à cette plaquette (2) destiné à recevoir une vis traversant un deuxième trou (6) de la pièce fixe (1 ), ledit dispositif étant caractérisé en ce qu'il comprend un bras (10) mobile dans une direction (D) perpendiculaire au plan de la face plane de la pièce fixe (1 ), ce bras (10) portant une pièce d'appui (1 1 ) comportant une surface adaptée pour venir en appui contre la plaquette (2) et serrer celle-ci contre la face plane de la pièce fixe (1 ) et un évidement (12) pour recevoir le second écrou (8) soudé à la plaquette (2), les flancs (13, 14) de cet évidement (12) étant adaptés pour coopérer par friction avec ledit deuxième écrou (8) pour ajuster la position de celui-ci en regard du deuxième trou (6) de la pièce fixe (1 ), avant serrage de la plaquette (2) contre cette pièce fixe (1 ). 1. Device for fixing a plate (2) against a flat face of a fixed part (1), this plate (2) having been previously positioned facing said flat face of the fixed part (1) by means of at least one screw (3, 4) engaged in a first hole of this fixed part (1) and in engagement with a first nut welded to the plate (2) so as to leave it a certain freedom of movement with respect to the part fixed (1), the plate (2) comprising at least a second nut (8) welded to this plate (2) for receiving a screw passing through a second hole (6) of the fixed part (1), said device being characterized in that it comprises an arm (10) movable in a direction (D) perpendicular to the plane of the flat face of the fixed part (1), this arm (10) carrying a support piece (1 1) comprising a surface adapted to bear against the plate (2) and clamp it against the flat face of the fixed part (1) and an evidem ent (12) for receiving the second nut (8) welded to the wafer (2), the flanks (13, 14) of this recess (12) being adapted to cooperate by friction with said second nut (8) to adjust the position of the latter facing the second hole (6) of the fixed part (1), before clamping the plate (2) against this fixed part (1).
2. Dispositif selon la revendication 1 , caractérisé en ce que ladite pièce d'appui (1 1 ) est rendue solidaire dudit bras (10) par des moyens permettant de guider en translation cette pièce d'appui (1 1 ) par rapport audit bras (10) selon une course prédéterminée, contre l'action d'au moins un ressort de rappel (15) disposé entre la pièce d'appui (1 1 ) et le bras (10).  2. Device according to claim 1, characterized in that said support member (1 1) is secured to said arm (10) by means for guiding this support piece (1 1) in translation relative to said arm (10) in a predetermined stroke against the action of at least one return spring (15) disposed between the support member (1 1) and the arm (10).
3. Dispositif selon la revendication 2, caractérisé en ce que ladite course est réglable.  3. Device according to claim 2, characterized in that said stroke is adjustable.
4. Dispositif selon l'une des revendications 2 ou 3, caractérisé en ce que ladite course est réglable au moyen d'au moins une vis (18) vissée dans un taraudage réalisé dans le bras (10), de sorte que l'extrémité de la vis (18) constitue une butée de fin de course.  4. Device according to one of claims 2 or 3, characterized in that said stroke is adjustable by means of at least one screw (18) screwed into a tapped hole in the arm (10), so that the end screw (18) constitutes a limit stop.
5. Dispositif selon l'une des revendications 2 à 4, caractérisé en ce que la force de rappel du ressort (15) est suffisante pour vaincre les efforts engendrés lors de la friction entre les flancs (13, 14) dudit évidement (12) de la pièce d'appui (1 1 ) et le second écrou (8). 5. Device according to one of claims 2 to 4, characterized in that the return force of the spring (15) is sufficient to overcome the forces generated during the friction between the flanks (13, 14) of said recess (12) of the support piece (1 1) and the second nut (8).
6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que ledit évidement (12) est réalisé entre deux parties espacées (19, 20) de ladite pièce d'appui (1 1 ) dont les extrémités (1 1 a) forment ladite surface adaptée pour venir en appui contre la plaquette (2), le flanc (1 3, 14) de chacune desdites parties (19, 20) étant incliné par rapport à ladite direction (D) perpendiculaire au plan de la face plane de la pièce fixe (1 ).  6. Device according to one of claims 1 to 5, characterized in that said recess (12) is formed between two spaced portions (19, 20) of said support piece (1 1) whose ends (1 1 a ) form said surface adapted to bear against the plate (2), the side (1 3, 14) of each of said parts (19, 20) being inclined with respect to said direction (D) perpendicular to the plane of the plane face of the fixed part (1).
7. Dispositif selon la revendication 6, caractérisé en ce que la profondeur de l'évidement (12) est au moins égale à la longueur axiale du deuxième écrou (8) et la distance comprise entre les deux parties espacées (19, 20) mesurée dans le plan de leurs extrémités (1 1 a) est supérieure à la largeur du deuxième écrou (8).  7. Device according to claim 6, characterized in that the depth of the recess (12) is at least equal to the axial length of the second nut (8) and the distance between the two spaced portions (19, 20) measured in the plane of their ends (1 1 a) is greater than the width of the second nut (8).
8. Application du dispositif selon l'une des revendications 1 à 7 à la fixation d'une plaquette (2) contre une pièce fixe (1 ) de la caisse d'un véhicule automobile.  8. Application of the device according to one of claims 1 to 7 to the attachment of a plate (2) against a fixed part (1) of the body of a motor vehicle.
9. Application selon la revendication 8, caractérisée en ce que ladite pièce fixe (1 ) est un renfort de la façade avant.  9. Application according to claim 8, characterized in that said fixed part (1) is a reinforcement of the front facade.
10. Application selon la revendication 9, caractérisée en ce que ledit dispositif fait partie d'un gabarit qui est adapté pour prépositionner une plaquette (2) contre chacun des deux renforts de façade avant (1 ), ledit gabarit comportant une partie mobile pour commander le déplacement du bras (10) dans une direction (D) perpendiculaire au plan de la face plane de la pièce fixe (1 ).  10. Application according to claim 9, characterized in that said device is part of a template which is adapted to preposition a wafer (2) against each of the two front wall reinforcements (1), said template comprising a movable portion for controlling moving the arm (10) in a direction (D) perpendicular to the plane of the planar face of the fixed part (1).
1 1 . Application selon la revendication 10, caractérisée en ce que ledit gabarit comporte un premier pilote d'indexation (21 ) adapté pour s'engager dans un trou (5) réalisé dans le renfort de façade avant (1 ) et dans un trou (7) de la plaquette (2) situé en regard du trou (5) de ce renfort (1 ) et un second pilote d'indexation (22) adapté pour s'engager dans ledit deuxième trou (6) du renfort de façade avant (1 ) et traverser ledit deuxième écrou (8) soudé à ladite plaquette (2) afin d'empêcher la rotation de cette plaquette (2) par rapport audit renfort de façade avant (1 ).  1 1. Application according to claim 10, characterized in that said template comprises a first indexing pilot (21) adapted to engage in a hole (5) made in the front façade reinforcement (1) and in a hole (7) the plate (2) located opposite the hole (5) of this reinforcement (1) and a second indexing driver (22) adapted to engage in said second hole (6) of the front facade reinforcement (1) and passing through said second nut (8) welded to said wafer (2) to prevent rotation of said wafer (2) relative to said front facade reinforcement (1).
PCT/FR2010/052522 2009-12-24 2010-11-25 Device for attaching a plate against a flat face of a fixed motor vehicle component WO2011077021A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201080064828.3A CN102791564B (en) 2009-12-24 2010-11-25 Device for attaching a plate against a flat face of a fixed motor vehicle component
EP10805271A EP2516243A1 (en) 2009-12-24 2010-11-25 Device for attaching a plate against a flat face of a fixed motor vehicle component

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0959561A FR2954721B1 (en) 2009-12-24 2009-12-24 DEVICE FOR FASTENING A PLATE AGAINST A FLAT FACE OF A FIXED PART AND APPLICATION OF SAID DEVICE FOR FASTENING A SUPPORT PLATE AGAINST A FIXED PART OF A MOTOR VEHICLE
FR0959561 2009-12-24

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CN102791564B (en) 2014-11-26
CN102791564A (en) 2012-11-21
FR2954721B1 (en) 2011-12-30
FR2954721A1 (en) 2011-07-01
EP2516243A1 (en) 2012-10-31

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