EP2990574A1 - Rear assembly of a vehicle for opening and closing a hatchback - Google Patents

Rear assembly of a vehicle for opening and closing a hatchback Download PDF

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Publication number
EP2990574A1
EP2990574A1 EP15182752.4A EP15182752A EP2990574A1 EP 2990574 A1 EP2990574 A1 EP 2990574A1 EP 15182752 A EP15182752 A EP 15182752A EP 2990574 A1 EP2990574 A1 EP 2990574A1
Authority
EP
European Patent Office
Prior art keywords
tailgate
rotation
vehicle
upright
attachment point
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15182752.4A
Other languages
German (de)
French (fr)
Other versions
EP2990574B1 (en
Inventor
Jean-Marcel Aubry
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.)
Flex N Gate France SAS
Original Assignee
Faurecia Bloc Avant SAS
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 Faurecia Bloc Avant SAS filed Critical Faurecia Bloc Avant SAS
Publication of EP2990574A1 publication Critical patent/EP2990574A1/en
Application granted granted Critical
Publication of EP2990574B1 publication Critical patent/EP2990574B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/63—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by swinging arms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
    • E05F15/622—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using screw-and-nut mechanisms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/627—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by flexible elongated pulling elements, e.g. belts, chains or cables
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/63—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by swinging arms
    • E05F2015/631—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by swinging arms the end of the arm sliding in a track; Slider arms therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/43—Motors
    • E05Y2201/434—Electromotors; Details thereof
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/40—Mounting location; Visibility of the elements
    • E05Y2600/46—Mounting location; Visibility of the elements in or on the wing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/26—Form or shape
    • E05Y2800/266—Form or shape curved
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/546—Tailboards, tailgates or sideboards opening upwards

Definitions

  • Such an assembly is intended in particular to give access to the trunk of a motor vehicle by opening the tailgate.
  • a user of the motor vehicle can thus easily load and unload, for example, bulky objects from the rear of the vehicle by opening the tailgate.
  • Such a tailgate opens for example by rotating the tailgate which passes from a closed position, substantially parallel to the amount, to an open position, substantially perpendicular to the amount, in which the tailgate extends above the head of the 'user.
  • an assistance device for opening the tailgate arranged to support the effort required for the tailgate rotation between its closed position and its open position.
  • WO 2006/012848 A1 describes for example a device for opening and closing a tailgate, comprising a cylinder rotatably mounted on the upright and on the tailgate and one end is moved on the tailgate or on the upright to open and close the tailgate.
  • Such a device does not give complete satisfaction. Indeed, when the tailgate is in its open position, the cylinder does not give sufficient strength to the tailgate, which can cause damage to it after several openings. Indeed, in the open position, the tailgate has a significant overhang, which significantly solicits the tailgate to keep it in the open position, particularly in its connection with the amount.
  • reinforcements could be added at the level of the tailgate link with the amount in order to increase the robustness of this link.
  • reinforcements increase the mass of the rear assembly and make more complex its structure and therefore its assembly.
  • the device described in WO 2006/012848 also has the disadvantage that the cylinder is in compression in the closed position of the tailgate. This state implies a strong constraint on the tailgate and generates a significant risk of deformation of the tailgate. In addition, this compressed state in the closed position of the tailgate reduces the life of the cylinder.
  • An object of the invention is to provide a rear vehicle assembly for opening and closing a tailgate, which has improved features, including better stability when the tailgate is in its open position without adding mass to this rear set.
  • the invention particularly relates to an assembly of the aforementioned type, wherein the path of the mobile attachment point of the bar extends in the upper part of the tailgate.
  • the support bar is fixed in the upper part of the upright and in the upper part of the tailgate, it is ensured that the support bar participates in the recovery of efforts required to maintain the tailgate in the open position.
  • the connection between the tailgate and the upright is less stressed when the tailgate is in the open position and it is not necessary to provide additional reinforcements at this link.
  • the displacement of the movable attachment point towards the upper part of the tailgate takes place until said movable attachment point is in the vicinity of the axis of rotation of the tailgate.
  • a tailgate 20 of a rear vehicle assembly 10 is illustrated by the Figures 1 and 2 .
  • This tailgate 20 is intended to provide access to the interior of a rear part of a motor vehicle, for example the trunk and / or the rear shelf of the vehicle, from outside the vehicle.
  • the tailgate 20 of the invention allows to open and close the rear vehicle assembly 10 to allow a user to have access to the interior of the vehicle. So, objects, particularly bulky, can easily be loaded from the outside into the vehicle or be accessible from the outside to be unloaded.
  • the tailgate 20 is secured in rotation, by at least one hinge 22, with a lateral upright 40 of the rear vehicle assembly 10. To Figures 1 and 2 this amount 40 is represented with a precise inclination with respect to the vertical. However, in other embodiments, the post 40 may of course be made with another inclination relative to the vertical or extend vertically, depending on the prerequisites of a given vehicle.
  • the hinge 22 defines a transverse axis of rotation 24 for the tailgate 20, that is to say an axis extending along the width of the vehicle. When opening the tailgate 20, the latter pivots about its axis of rotation 24 upwards and when closing downwards.
  • the axis of rotation 24 extends to the upper end of the tailgate 20 and the upright 40.
  • the tailgate 20 extends between two uprights extending on either side of the tailgate and the The axis of rotation 24 extends from one upright to the other and is defined by the two hinges each connecting the tailgate to one of the uprights.
  • the rear assembly according to the invention further comprises a device for opening and closing the tailgate 20 relative to the (x) upright (s).
  • a device for opening and closing the tailgate 20 makes it possible to assist the passage of the tailgate 20 from a closed position A, shown in FIG. Fig. 1 , in which the tailgate 20 extends substantially parallel to the upright 40 and closes the rear portion of the vehicle, to an open position B, shown in FIG. Fig. 2 , in which the tailgate 10 extends substantially perpendicular to the upright 40 or at an obtuse angle relative to the upright 40, so as to release access to the vehicle interior.
  • the opening and closing device comprises at least one rigid support bar 30 fixed on the one hand to the tailgate 20 and on the other hand to one of the uprights 40.
  • the support bar 30 is for example made of metal material so as to present a significant rigidity.
  • the support bar 30 extends in an upper part of a lateral upright 40 of the rear vehicle assembly 10 and in an upper part of the tailgate 20.
  • This bar 30 is connected by a first end to a fixed attachment point of the lateral upright 40 so as to pivot upwardly and downwardly.
  • the first end and the fixed attachment point are disposed in the vicinity of the upper end of the lateral upright 40.
  • the support bar 30 is further connected by a second end to the tailgate 20 by means of a movable attachment point 32 extending between the second end and the tailgate 20.
  • the support bar 30 has a curved shape adapted to the kinematics of the tailgate between the closed position A and the open position B.
  • This curved shape has the particular advantage of limiting the forces exerting at the mobile attachment point 32 in the vicinity or in the closed position A of the tailgate 20 when opening or closing the tailgate 20.
  • the opening and closing device according to the invention has the advantage of exerting substantially no stress on the tailgate 20 in the closed position A thereof.
  • the support bar 30 has a substantially rectilinear section 37 extending from its first end to an intermediate point 38 and a rounded section 39 extending from the intermediate point 38 to the second end of the support bar 30.
  • the intermediate point 38 is disposed near the second end.
  • the support bar 30 is intended to open and close the rear vehicle assembly 10 by pivoting the tailgate 20.
  • This rigid bar 30 can hold the tailgate 20 stably due to its rigidity and its form.
  • the rigid bar 30 allows the tailgate 20 to be held in the open position B without excessive stress on the hinge (s) 22 despite the overhang of the tailgate 20 in its open position B.
  • the rounded shape of the section rounded 39 of the support bar 30 in the vicinity of the second end forms a support opposing the weight of the tailgate 20 in its open position B and avoiding a return of the tailgate 20 inadvertent to its closed position A. Thus, part of the weight the tailgate 20 rests on the rigid bar 30.
  • the movable fixing point 32 is displaceable in translation in the upper part of the tailgate 40 according to a predefined path 34 extending substantially perpendicular to the axis of rotation 24 of the tailgate 20.
  • a predefined path 34 extending substantially perpendicular to the axis of rotation 24 of the tailgate 20.
  • upper part it is meant that the predefined path 34 of the movable fixing point 32 extends between the upper end of the tailgate 20 and a central portion of the tailgate 20, extending substantially in the center of the tailgate 20 between its upper end and its lower end, and that it does not extend between the central portion and the lower end of the tailgate 20.
  • the predefined path 34 extends in the plane defined by the tailgate 20.
  • the bar rigid support 30 can be made with a reduced length since it extends between two ends both located in the upper part of the upright 40 and the tailgate 20.
  • the movable attachment point 32 preferably moves in a reinforcing rail 26.
  • This rail 26 extends along the path 34 of the fixing point 32. It is for example made of a metallic material.
  • the vehicle rear assembly 10 is particularly robust, especially when the tailgate 20 is in the open position B, without the need to add reinforcements in the upright 40 and / or in the tailgate 20.
  • the rail 26 is advantageously formed in a reinforced area of the tailgate 20.
  • a reinforced zone has a higher mechanical strength than the rest of the tailgate 20.
  • It is in particular made of a metallic material.
  • it is for example made of a reinforced plastics material, in particular a thermoplastic material reinforced with fibers.
  • the rail 26 is advantageously formed in one piece with the reinforced zone of the tailgate 20. In this case, it is made of the same material as the reinforced zone. This embodiment is advantageous because the forces exerted by the mobile attachment point 32 on the tailgate 20 then apply in a reinforced area of the tailgate 20, which reduces the risk of deformation of the tailgate 20 under the effect of these efforts.
  • the movable fixing point 32 is advantageously in mechanical contact with a moving means 36 of the movable fixing point 32.
  • the moving means 36 can form a rail 26.
  • this moving means 36 is an endless screw, for example a metal screw, extending along the predefined path 34 of the mobile attachment point 32 and with which the attachment point 32 meshes.
  • a rotation of the worm causes a displacement of the attachment point 32 along the path 34.
  • the movable attachment point 32 is remote from the axis of rotation 24 of the tailgate 20 when the tailgate 20 is in the closed position A.
  • the movable fixing point 32 is closer to the axis of rotation 24 than in the closed position A of the tailgate 20, as shown in FIG. figure 2 .
  • the mobile attachment point 32 is disposed in the immediate vicinity of the axis of rotation 24 in the open position B of the tailgate 20, that is to say that the upper end of the path 34 is extends to the immediate vicinity, or is adjacent, or is formed by the axis of rotation 24 of the tailgate 20.
  • the tailgate 20 is stabilized by the rigid support bar 30 in its upper part and the forces required to maintain the The tailgate 20 in its open position B is taken up by the support bar 30, which has the effect of relieving the hinges 22.
  • Such an arrangement of the rigid support bar 30 at the upper part of the tailgate 20 also has the advantage that the support bar 30 minimally encumbrances the space under the tailgate 20 in the open position B, which facilitates the loading and unloading of bulky objects for the user.
  • a motor (not shown) is advantageously arranged inside the tailgate 20, mechanically connected with the moving means 36 of the movable fixing point 32.
  • the motor can be controlled by the user to actuate the moving means 36 or can is triggered automatically when the user requests the tailgate 20 to its open position B or to its closed position A.
  • the moving means 36 thus moves the movable attachment point 32 along its predefined path 34 to put the tailgate 20 in its position. open position B or closed A.
  • the engine may be identical with a motor for actuating a locking system of a vehicle rear assembly 10.
  • the engine is for example arranged to cause the rotation of a worm when the means of displacement 36 is formed by such a screw.
  • the motor is arranged to actuate a belt connected to the mobile attachment point 32 and arranged to move the attachment point 32 in the rail 26, when the displacement means 36 is formed by such a rail 26.
  • the arrangement of the engine within the tailgate 20 facilitates the assembly of the vehicle rear assembly 10.
  • the manufacturing costs of the vehicle rear assembly 10 can be decreased.
  • a vehicle rear assembly 10 is provided.
  • the tailgate 20 is in its closed position A.
  • the displacement means 36 moves the fixing point 32 towards the axis of rotation 24 of the tailgate 20, along the predefined path 34.
  • This predefined path 34 is substantially perpendicular to the axis of rotation 24 of the tailgate 20.
  • the moving means is a worm which is rotated by the motor to move the movable attachment point 32 along its thread.
  • worm allows a reduction of the force required for the opening of the tailgate 20. This reduction depends on the thread of the worm.
  • the force required to effect this movement is lower compared to a conventional system equipped with a cylinder since it is simply to drive the worm in rotation.
  • the motor is less stressed compared to a conventional system equipped with a jack.
  • the engine life is increased compared to a conventional system equipped with a cylinder and the engine can be less power, which also makes it less cumbersome.
  • An endless screw improves the reliability and increases the life of the opening and closing device compared to conventional systems.
  • a worm is less expensive than a cylinder usually used for the vehicle rear assembly 10.
  • An endless screw also allows a better stability when the tailgate is in its open position B. Indeed, the worm is rigid and firmly holds the tailgate open B while a cylinder, whose rod is movable relative to the body, is likely to retract slightly when the tailgate is open, for example if a user is supported .
  • the rigid support bar 30, being rotationally secured by its first end with the lateral upright 40 of the vehicle rear assembly 10 and secured at its second end with the movable fixing point 32, exerts a force on the tailgate 20 when moving the movable attachment point 32 to the upper part of the tailgate 20.
  • the tailgate 20 pivots about its axis of rotation 24 to reach its open position B.
  • the motor then drives the moving means 36 of the movable attachment point 32 in a closing direction to close the rear vehicle assembly 10.
  • This moving means 36 again moves the attachment point 32 to the predefined path 34 away from the axis of rotation 24 of the tailgate 20.
  • the movable attachment point 32 moves away from the axis of rotation 24 of the tailgate 20 and the tailgate 20 pivots about its axis of rotation 24 in its closed position A.
  • the tailgate 20 includes hinges 22 disposed on a lateral upright 40 of the rear assembly of the tailgate 10.
  • the vehicle rear assembly 10 comprises a tailgate 20 laterally pivotable about a vertical axis of rotation.
  • at least one rigid bar 30 is disposed between the upper upright of the rear vehicle assembly 10 and the tailgate 20 similar to what has been described above.
  • the engine of the vehicle rear assembly 10 can be arranged in the lateral upright 40 of the rear assembly 10 to drive the worm 36 in rotation.
  • the motor is connected by a gear to one end. of the worm 36.
  • the engine can be connected with a position sensor, indicating the open position to signal the engine the reclining position between the two positions A and B of the tailgate 20.
  • This sensor can detect in particular the open position B and closed A of the tailgate 20 and indicates to the motor to stop the displacement of the mobile attachment point 32.
  • This position sensor comprises for example a sensor integrated in the engine, for example a sensor for measuring the position of the rotor of the engine, a sensor specific to count the number of revolutions made by the motor rotor or a sensor measuring the current in the motor.
  • the motor can also be connected with a resistance sensor, indicating to the motor whether the opening or closing of the tailgate 20 is facing unexpected resistance.
  • the motor can stop and reverse the direction of movement of the movable attachment point 32 when, for example, an object may be stuck in the rear vehicle assembly 10.
  • the tailgate 20 of the rear assembly 10 can be equipped with obstacle sensors for detecting objects placed in the space covered by the pivoting of the tailgate 20 when it is opened or closed.
  • the rail 26 of the tailgate 20 may comprise an electrical connector to form an electrical ground for a radio type antenna or the like.
  • the moving means 36 of the movable fixing point 32 may be formed by a belt which is integral with the movable fixing point 32.
  • the rear vehicle assembly 10 can simultaneously be applied to a hood of a vehicle.
  • the rear vehicle assembly 10 can be controlled by the user using a remote control.
  • the method of opening and closing a tailgate 20 may include a step of receiving an opening or closing signal from the vehicle rear assembly 10 before the movable attachment point 32 is moved to open or close the rear assembly 10.
  • the opening and / or closing of the rear assembly 10 begins with a verification of the space covered by the pivoting of the tailgate 20 using the obstacle sensors, in order to detect a potential obstacle. If an obstacle is detected, the sensor emits a warning signal, which can be received by the engine, in order to stop the opening or closing of the rear vehicle assembly 10. Thus a collision of the tailgate 20 with the obstacle can be prevented.
  • a verification of the covered space can also be performed during the opening and closing of the rear vehicle assembly 10.
  • the opening and closing device of the tailgate 20 further comprises means for detaching, capable of generating a separation of the movable fixing point 32 relative to the displacement means 36.
  • means for detaching capable of generating a separation of the movable fixing point 32 relative to the displacement means 36.
  • the mobile attachment point 32 comprises for example a nut engaged on the worm, and the disengagement means comprise in particular means configured to increase the diameter. inside the nut so that it disengages from the thread of the worm. The nut is then able to slide along the worm in the absence of rotation of the worm.
  • the opening and closing device of the tailgate further comprises a cylinder, in particular a hydraulic cylinder, a first end of which is secured to the mobile attachment point 36 and a second end, opposite the first one. , is attached to the tailgate 20 at the lower end of the worm 36.
  • the second end of this jack is fixed on a worm support member 36 integral with the tailgate 20. This jack allows the manual closing of the tailgate 20 in the event of an electrical failure preventing the actuation of the motor controlling the displacement of the attachment point 32 via the moving means 36, in particular after actuation of the disengagement means mentioned above.

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Abstract

Ensemble arrière de véhicule (10) comprenant au moins un montant (40) de hayon, un hayon (20) et au moins un dispositif d'ouverture et de fermeture, le hayon (20) étant mobile en rotation par rapport au montant (40) autour d'un axe de rotation (24) s'étendant dans une partie supérieure du montant (40) et dans une partie supérieure du hayon (20), le dispositif d'ouverture et de fermeture comprenant :
- au moins une barre de support rigide (30) comprenant une première extrémité, montée mobile en rotation sur la partie supérieure du montant (40), et une deuxième extrémité, montée mobile en rotation sur un point de fixation mobile (32) du hayon (20).Rear vehicle assembly (10) comprising at least one tailgate upright (40), a tailgate (20) and at least one opening and closing device, the tailgate (20) being rotatable relative to the upright (40) ) about an axis of rotation (24) extending in an upper part of the upright (40) and in an upper part of the tailgate (20), the opening and closing device comprising:
- At least one rigid support bar (30) comprising a first end, rotatably mounted on the upper portion of the upright (40), and a second end rotatably mounted on a movable mounting point (32) of the tailgate (20).

Le point de fixation mobile (32) est déplaçable en translation selon un trajet (34) perpendiculaire à l'axe de rotation (24) et s'étendant dans la partie supérieure du hayon (20).

Figure imgaf001
The movable attachment point (32) is displaceable in translation along a path (34) perpendicular to the axis of rotation (24) and extending in the upper part of the tailgate (20).
Figure imgaf001

Description

La présente invention concerne un ensemble arrière de véhicule comprenant au moins un montant de hayon, un hayon et au moins un dispositif d'ouverture et de fermeture, le hayon étant mobile en rotation par rapport au montant autour d'un axe de rotation s'étendant dans une partie supérieure du montant et dans une partie supérieure du hayon, le dispositif d'ouverture et de fermeture comprenant :

  • au moins une barre de support rigide comprenant une première extrémité, montée mobile en rotation sur la partie supérieure du montant, et une deuxième extrémité, montée mobile en rotation sur un point de fixation mobile du hayon,
  • le point de fixation mobile étant déplaçable en translation selon un trajet s'étendant sensiblement perpendiculairement à l'axe de rotation du hayon.
The present invention relates to a rear vehicle assembly comprising at least one tailgate upright, a tailgate and at least one opening and closing device, the tailgate being rotatable relative to the upright about an axis of rotation s' extending in an upper part of the upright and in an upper part of the tailgate, the opening and closing device comprising:
  • at least one rigid support bar comprising a first end, rotatably mounted on the upper portion of the upright, and a second end rotatably mounted on a mobile attachment point of the tailgate,
  • the movable fixing point being displaceable in translation along a path extending substantially perpendicular to the axis of rotation of the tailgate.

Un tel ensemble est destiné notamment à donner accès au coffre d'un véhicule automobile par l'ouverture du hayon. Un utilisateur du véhicule automobile peut ainsi facilement charger et décharger, par exemple, des objets encombrants par l'arrière du véhicule en ouvrant le hayon. Un tel hayon s'ouvre par exemple par rotation du hayon qui passe d'une position fermée, sensiblement parallèle au montant, à une position ouverte, sensiblement perpendiculaire au montant, dans laquelle le hayon s'étend au-dessus de la tête de l'utilisateur.Such an assembly is intended in particular to give access to the trunk of a motor vehicle by opening the tailgate. A user of the motor vehicle can thus easily load and unload, for example, bulky objects from the rear of the vehicle by opening the tailgate. Such a tailgate opens for example by rotating the tailgate which passes from a closed position, substantially parallel to the amount, to an open position, substantially perpendicular to the amount, in which the tailgate extends above the head of the 'user.

Cependant, un tel hayon doit pouvoir s'ouvrir sans effort excessif de la part de l'utilisateur malgré la masse de celui-ci. Par exemple, il doit être possible d'ouvrir le hayon d'une seule main sans que cela nécessite un effort de traction et/ou de poussée trop important de la part de l'utilisateur.However, such a hatchback must be able to open without excessive effort on the part of the user despite the mass of it. For example, it must be possible to open the tailgate with one hand without this requires a pulling force and / or excessive push on the part of the user.

Pour ce faire, il est connu de prévoir un dispositif d'assistance à l'ouverture du hayon, agencé pour prendre en charge l'effort nécessaire à la rotation du hayon entre sa position fermée et sa position ouverte.To do this, it is known to provide an assistance device for opening the tailgate, arranged to support the effort required for the tailgate rotation between its closed position and its open position.

A cet effet, le document WO 2006/012848 A1 décrit par exemple un dispositif pour l'ouverture et la fermeture d'un hayon, comportant un vérin monté en rotation sur le montant et sur le hayon et dont une extrémité est déplacée sur le hayon ou sur le montant pour ouvrir et fermer le hayon.For this purpose, the document WO 2006/012848 A1 describes for example a device for opening and closing a tailgate, comprising a cylinder rotatably mounted on the upright and on the tailgate and one end is moved on the tailgate or on the upright to open and close the tailgate.

Un tel dispositif ne donne cependant pas entière satisfaction. En effet, lorsque le hayon est dans sa position ouverte, le vérin ne permet pas de donner une robustesse suffisante au hayon, ce qui peut entraîner un endommagement de celui-ci après plusieurs ouvertures. En effet, en position ouverte, le hayon présente un porte-à-faux important, ce qui sollicite de façon importante le hayon pour le maintenir dans la position ouverte, notamment au niveau de sa liaison avec le montant.Such a device does not give complete satisfaction. Indeed, when the tailgate is in its open position, the cylinder does not give sufficient strength to the tailgate, which can cause damage to it after several openings. Indeed, in the open position, the tailgate has a significant overhang, which significantly solicits the tailgate to keep it in the open position, particularly in its connection with the amount.

Pour pallier cet inconvénient, des renforts pourraient être ajoutés au niveau de la liaison du hayon avec le montant afin d'augmenter la robustesse de cette liaison. Cependant, de tels renforts augmentent la masse de l'ensemble arrière et rendent plus complexe sa structure et donc son montage.To overcome this drawback, reinforcements could be added at the level of the tailgate link with the amount in order to increase the robustness of this link. However, such reinforcements increase the mass of the rear assembly and make more complex its structure and therefore its assembly.

Le dispositif décrit dans WO 2006/012848 présente également l'inconvénient que le vérin est en compression en position fermée du hayon. Cet état implique une forte contrainte sur le hayon et engendre un risque important de déformation de ce dernier. De plus, cet état compressé en position fermée du hayon réduit la durée de vie du vérin.The device described in WO 2006/012848 also has the disadvantage that the cylinder is in compression in the closed position of the tailgate. This state implies a strong constraint on the tailgate and generates a significant risk of deformation of the tailgate. In addition, this compressed state in the closed position of the tailgate reduces the life of the cylinder.

Un but de l'invention est de fournir un ensemble arrière de véhicule pour l'ouverture et la fermeture d'un hayon, qui présente des fonctionnalités améliorées, notamment une meilleure stabilité lors que le hayon se trouve dans sa position ouverte sans ajouter de masse à cet ensemble arrière.An object of the invention is to provide a rear vehicle assembly for opening and closing a tailgate, which has improved features, including better stability when the tailgate is in its open position without adding mass to this rear set.

A cet effet, l'invention a notamment pour objet un ensemble du type précité, dans lequel le trajet du point de fixation mobile de la barre s'étend dans la partie supérieure du hayon.For this purpose, the invention particularly relates to an assembly of the aforementioned type, wherein the path of the mobile attachment point of the bar extends in the upper part of the tailgate.

En prévoyant que la barre de support est fixée dans la partie supérieure du montant et dans la partie supérieure du hayon, on assure que la barre de support participe à la reprise des efforts nécessaires pour le maintien du hayon en position ouverte. Ainsi, la liaison entre le hayon et le montant est moins sollicitée lorsque le hayon est en position ouverte et il n'est pas nécessaire de prévoir des renforts supplémentaires au niveau de cette liaison.By providing that the support bar is fixed in the upper part of the upright and in the upper part of the tailgate, it is ensured that the support bar participates in the recovery of efforts required to maintain the tailgate in the open position. Thus, the connection between the tailgate and the upright is less stressed when the tailgate is in the open position and it is not necessary to provide additional reinforcements at this link.

L'ensemble selon l'invention peut comprendre une ou plusieurs des caractéristiques suivantes, prise(s) isolément ou suivant toute combinaison techniquement possible :

  • le hayon est mobile entre une position fermée A, dans laquelle le hayon s'étend sensiblement parallèlement au montant, et une position ouverte B, dans laquelle le hayon s'étend sensiblement perpendiculairement au montant, le point de fixation mobile de la barre étant disposé au voisinage de l'axe de rotation du hayon lorsque ledit hayon est dans la position ouverte B;
  • le hayon comprend un rail s'étendant selon le trajet du point de fixation mobile, ledit rail recevant ledit point de fixation;
  • le rail est en matériau métallique et comprend un connecteur électrique agencé pour former une masse pour une antenne de radio;
  • la barre de support rigide présente une forme courbe entre sa première extrémité et sa deuxième extrémité;
  • une vis sans fin est agencée à l'intérieur du hayon, destinée à déplacer le point de fixation mobile de la barre de support;
  • une courroie est agencée à l'intérieur du hayon, destinée à déplacer le point de fixation mobile de la barre de support;
  • un moteur est intégré dans le hayon, destiné à entraîner au long d'une trajectoire linéaire le point de fixation mobile de la barre de support à l'intérieur du hayon;
  • un moteur est intégré dans le montant de hayon, destiné à entraîner en rotation la barre de support rigide.
The assembly according to the invention may comprise one or more of the following characteristics, taken in isolation or in any technically possible combination:
  • the tailgate is movable between a closed position A, in which the tailgate extends substantially parallel to the upright, and an open position B, in which the tailgate extends substantially perpendicular to the upright, the movable fixing point of the bar being arranged in the vicinity of the axis of rotation of the tailgate when said tailgate is in the open position B;
  • the tailgate comprises a rail extending along the path of the movable fixing point, said rail receiving said fixing point;
  • the rail is made of metallic material and comprises an electrical connector arranged to form a ground for a radio antenna;
  • the rigid support bar has a curved shape between its first end and its second end;
  • a worm is arranged inside the tailgate, intended to move the movable attachment point of the support bar;
  • a belt is arranged inside the tailgate, intended to move the movable attachment point of the support bar;
  • a motor is integrated in the tailgate, for driving along a linear path the movable fixing point of the support bar inside the tailgate;
  • a motor is integrated in the tailgate upright, for driving in rotation the rigid support bar.

L'invention a aussi pour objet un procédé d'ouverture et de fermeture d'un hayon d'un véhicule, le procédé comprenant les étapes suivantes:

  • fourniture d'un ensemble arrière de véhicule;
  • déplacement du point de fixation mobile vers la partie supérieure du hayon pour placer le hayon en position ouverte par une rotation autour de l'axe de rotation ;
  • déplacement du point de fixation mobile vers le milieu du hayon pour placer le hayon en position fermée A par une rotation autour de l'axe de rotation.
The invention also relates to a method of opening and closing a tailgate of a vehicle, the method comprising the following steps:
  • providing a rear vehicle assembly;
  • moving the movable attachment point to the upper part of the tailgate to place the tailgate in the open position by a rotation about the axis of rotation;
  • moving the movable fixing point towards the middle of the tailgate to place the tailgate in the closed position A by a rotation about the axis of rotation.

Selon des caractéristiques particulières du procédé, le déplacement du point de fixation mobile vers la partie supérieure du hayon s'effectue jusqu'à ce que ledit point de fixation mobile se trouve au voisinage de l'axe de rotation du hayon.According to particular features of the method, the displacement of the movable attachment point towards the upper part of the tailgate takes place until said movable attachment point is in the vicinity of the axis of rotation of the tailgate.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple, et faite en se référant aux dessins annexés, sur lesquels :

  • la figure 1 est une représentation schématique en coupe, suivant un plan longitudinal passant par l'arrière du véhicule montrant l'ensemble arrière selon l'invention, le hayon étant en position fermée; et
  • la figure 2 est une représentation schématique en coupe de l'ensemble arrière de la figure 1, le hayon étant en position ouverte.
The invention will be better understood on reading the description which follows, given solely by way of example, and with reference to the appended drawings, in which:
  • the figure 1 is a schematic representation in section along a longitudinal plane passing through the rear of the vehicle showing the rear assembly according to the invention, the tailgate being in the closed position; and
  • the figure 2 is a schematic representation in section of the rear set of the figure 1 with the tailgate in the open position.

Un hayon 20 d'un ensemble arrière de véhicule 10 est illustré par les figures 1 et 2. Ce hayon 20 est destiné à donner accès à l'intérieur d'une partie arrière d'un véhicule automobile, par exemple le coffre et/ou la plage arrière du véhicule, depuis l'extérieur du véhicule.A tailgate 20 of a rear vehicle assembly 10 is illustrated by the Figures 1 and 2 . This tailgate 20 is intended to provide access to the interior of a rear part of a motor vehicle, for example the trunk and / or the rear shelf of the vehicle, from outside the vehicle.

Dans la présente description, les termes « supérieur », « haut », « inférieur » et « bas » sont définis relativement à un axe vertical du véhicule. Par ailleurs, les termes « avant » et « arrière » sont considérés selon le sens de conduite du véhicule.In the present description, the terms "superior", "high", "lower" and "low" are defined relative to a vertical axis of the vehicle. Furthermore, the terms "front" and "rear" are considered according to the driving direction of the vehicle.

Le hayon 20 selon l'invention permet d'ouvrir et de fermer l'ensemble arrière de véhicule 10 pour permettre à un utilisateur d'avoir accès à l'intérieur du véhicule. Ainsi, des objets, notamment encombrants, peuvent aisément être chargés depuis l'extérieur dans le véhicule ou être accessibles par l'extérieur afin d'être déchargés.The tailgate 20 of the invention allows to open and close the rear vehicle assembly 10 to allow a user to have access to the interior of the vehicle. So, objects, particularly bulky, can easily be loaded from the outside into the vehicle or be accessible from the outside to be unloaded.

Le hayon 20 est solidaire en rotation, par au moins une charnière 22, avec un montant latéral 40 de l'ensemble arrière de véhicule 10. Aux figures 1 et 2, ce montant 40 est représenté avec une inclinaison précise par rapport à la verticale. Toutefois, dans d'autres modes de réalisation, le montant 40 peut bien sûr être réalisé avec une autre inclinaison par rapport à la verticale ou s'étendre verticalement, en fonction des prérequis d'un véhicule donné. La charnière 22 définit un axe de rotation transversal 24 pour le hayon 20, c'est-à-dire un axe s'étendant selon la largeur du véhicule. Lors de l'ouverture du hayon 20, ce dernier pivote autour de son axe de rotation 24 vers le haut et lors de la fermeture vers le bas. L'axe de rotation 24 s'étend à l'extrémité supérieure du hayon 20 et du montant 40. Selon un mode de réalisation, le hayon 20 s'étend entre deux montants s'étendant de part et d'autre du hayon et l'axe de rotation 24 s'étend d'un montant à l'autre et est défini par les deux charnières reliant chacune le hayon à l'un des montants.The tailgate 20 is secured in rotation, by at least one hinge 22, with a lateral upright 40 of the rear vehicle assembly 10. To Figures 1 and 2 this amount 40 is represented with a precise inclination with respect to the vertical. However, in other embodiments, the post 40 may of course be made with another inclination relative to the vertical or extend vertically, depending on the prerequisites of a given vehicle. The hinge 22 defines a transverse axis of rotation 24 for the tailgate 20, that is to say an axis extending along the width of the vehicle. When opening the tailgate 20, the latter pivots about its axis of rotation 24 upwards and when closing downwards. The axis of rotation 24 extends to the upper end of the tailgate 20 and the upright 40. According to one embodiment, the tailgate 20 extends between two uprights extending on either side of the tailgate and the The axis of rotation 24 extends from one upright to the other and is defined by the two hinges each connecting the tailgate to one of the uprights.

L'ensemble arrière selon l'invention comprend en outre un dispositif d'ouverture et de fermeture du hayon 20 par rapport au(x) montant(s). Un tel dispositif d'ouverture et de fermeture permet d'assister le passage du hayon 20 d'une position fermée A, représentée sur la Fig. 1, dans laquelle le hayon 20 s'étend sensiblement parallèlement au montant 40 et ferme la partie arrière du véhicule, à une position ouverte B, représentée sur la Fig. 2, dans laquelle le hayon 10 s'étend sensiblement perpendiculairement au montant 40 ou en formant un angle obtus par rapport au montant 40, de sorte à libérer un accès vers l'intérieur du véhicule.The rear assembly according to the invention further comprises a device for opening and closing the tailgate 20 relative to the (x) upright (s). Such an opening and closing device makes it possible to assist the passage of the tailgate 20 from a closed position A, shown in FIG. Fig. 1 , in which the tailgate 20 extends substantially parallel to the upright 40 and closes the rear portion of the vehicle, to an open position B, shown in FIG. Fig. 2 , in which the tailgate 10 extends substantially perpendicular to the upright 40 or at an obtuse angle relative to the upright 40, so as to release access to the vehicle interior.

Le dispositif d'ouverture et de fermeture comprend au moins une barre de support rigide 30 fixée d'une part au hayon 20 et d'autre part à l'un des montants 40. La barre de support 30 est par exemple réalisée en matériau métallique de sorte à présenter une rigidité importante. La barre de support 30 s'étend dans une partie supérieure d'un montant latéral 40 de l'ensemble arrière de véhicule 10 et dans une partie supérieure du hayon 20. Cette barre 30 est reliée par une première extrémité à un point de fixation fixe du montant latéral 40 de manière à pouvoir pivoter vers le haut et vers le bas. La première extrémité et le point de fixation fixe sont disposés au voisinage de l'extrémité supérieure du montant latéral 40. La barre de support 30 est en outre reliée par une deuxième extrémité avec le hayon 20 au moyen d'un point de fixation mobile 32 s'étendant entre la deuxième extrémité et le hayon 20.The opening and closing device comprises at least one rigid support bar 30 fixed on the one hand to the tailgate 20 and on the other hand to one of the uprights 40. The support bar 30 is for example made of metal material so as to present a significant rigidity. The support bar 30 extends in an upper part of a lateral upright 40 of the rear vehicle assembly 10 and in an upper part of the tailgate 20. This bar 30 is connected by a first end to a fixed attachment point of the lateral upright 40 so as to pivot upwardly and downwardly. The first end and the fixed attachment point are disposed in the vicinity of the upper end of the lateral upright 40. The support bar 30 is further connected by a second end to the tailgate 20 by means of a movable attachment point 32 extending between the second end and the tailgate 20.

Entre sa première et sa deuxième extrémités, la barre de support 30 présente une forme courbe adaptée à la cinématique du hayon entre la position fermée A et la position ouverte B. Cette forme courbe présente notamment l'avantage de limiter les efforts s'exerçant au niveau du point de fixation mobile 32 au voisinage ou dans la position fermée A du hayon 20 lors de l'ouverture ou de la fermeture du hayon 20.Between its first and second ends, the support bar 30 has a curved shape adapted to the kinematics of the tailgate between the closed position A and the open position B. This curved shape has the particular advantage of limiting the forces exerting at the mobile attachment point 32 in the vicinity or in the closed position A of the tailgate 20 when opening or closing the tailgate 20.

Le dispositif d'ouverture et de fermeture selon l'invention présente l'avantage de n'exercer sensiblement aucune contrainte sur le hayon 20 en position fermée A de celui-ci.The opening and closing device according to the invention has the advantage of exerting substantially no stress on the tailgate 20 in the closed position A thereof.

Plus particulièrement, la barre de support 30 présente un tronçon sensiblement rectiligne 37 s'étendant de sa première extrémité à un point intermédiaire 38 et un tronçon arrondi 39 s'étendant du point intermédiaire 38 à la deuxième extrémité de la barre de support 30. Selon un mode de réalisation, le point intermédiaire 38 est disposé à proximité de la deuxième extrémité.More particularly, the support bar 30 has a substantially rectilinear section 37 extending from its first end to an intermediate point 38 and a rounded section 39 extending from the intermediate point 38 to the second end of the support bar 30. an embodiment, the intermediate point 38 is disposed near the second end.

La barre de support 30 est destinée à réaliser l'ouverture et la fermeture de l'ensemble arrière de véhicule 10 par un pivotement du hayon 20. Cette barre rigide 30 permet de tenir le hayon 20 de manière stable grâce à sa rigidité et à sa forme. Notamment, la barre rigide 30 permet un maintien du hayon 20 en position ouverte B sans sollicitation trop importante de la ou des charnières 22 malgré le porte-à-faux du hayon 20 dans sa position ouverte B. Plus particulièrement, la forme arrondie du tronçon arrondi 39 de la barre de support 30 au voisinage de la deuxième extrémité forme un support s'opposant au poids du hayon 20 dans sa position ouverte B et évitant un retour du hayon 20 intempestif vers sa position fermée A. Ainsi, une partie du poids du hayon 20 repose sur la barre rigide 30.The support bar 30 is intended to open and close the rear vehicle assembly 10 by pivoting the tailgate 20. This rigid bar 30 can hold the tailgate 20 stably due to its rigidity and its form. In particular, the rigid bar 30 allows the tailgate 20 to be held in the open position B without excessive stress on the hinge (s) 22 despite the overhang of the tailgate 20 in its open position B. More particularly, the rounded shape of the section rounded 39 of the support bar 30 in the vicinity of the second end forms a support opposing the weight of the tailgate 20 in its open position B and avoiding a return of the tailgate 20 inadvertent to its closed position A. Thus, part of the weight the tailgate 20 rests on the rigid bar 30.

Sous l'effet du déplacement en rotation du hayon 20 par rapport au montant 40, le point de fixation mobile 32 est déplaçable en translation dans la partie supérieure du hayon 40 selon un trajet prédéfini 34 s'étendant sensiblement perpendiculairement à l'axe de rotation 24 du hayon 20. Par partie supérieure, on entend que le trajet prédéfini 34 du point de fixation mobile 32 s'étend entre l'extrémité supérieure du hayon 20 et une partie centrale du hayon 20, s'étendant sensiblement au centre du hayon 20 entre son extrémité supérieure et son extrémité inférieure, et qu'il ne s'étend pas entre la partie centrale et l'extrémité inférieure du hayon 20. Le trajet prédéfini 34 s'étend dans le plan défini par le hayon 20. Ainsi la barre de support rigide 30 peut être réalisée avec une longueur réduite puisqu'elle s'étend entre deux extrémités toutes deux situées dans la partie supérieure du montant 40 et du hayon 20.Under the effect of the rotational movement of the tailgate 20 relative to the upright 40, the movable fixing point 32 is displaceable in translation in the upper part of the tailgate 40 according to a predefined path 34 extending substantially perpendicular to the axis of rotation 24 of the tailgate 20. By upper part, it is meant that the predefined path 34 of the movable fixing point 32 extends between the upper end of the tailgate 20 and a central portion of the tailgate 20, extending substantially in the center of the tailgate 20 between its upper end and its lower end, and that it does not extend between the central portion and the lower end of the tailgate 20. The predefined path 34 extends in the plane defined by the tailgate 20. Thus the bar rigid support 30 can be made with a reduced length since it extends between two ends both located in the upper part of the upright 40 and the tailgate 20.

Le point de fixation mobile 32 se déplace préférentiellement dans un rail de renforcement 26. Ce rail 26 s'étend le long du trajet 34 du point de fixation 32. Il est par exemple réalisé dans un matériau métallique.The movable attachment point 32 preferably moves in a reinforcing rail 26. This rail 26 extends along the path 34 of the fixing point 32. It is for example made of a metallic material.

De cette manière, l'ensemble arrière de véhicule 10 est particulièrement robuste, notamment lorsque le hayon 20 se trouve dans la position ouverte B, sans nécessiter d'ajout de renforts dans le montant 40 et/ou dans le hayon 20.In this way, the vehicle rear assembly 10 is particularly robust, especially when the tailgate 20 is in the open position B, without the need to add reinforcements in the upright 40 and / or in the tailgate 20.

Le rail 26 est avantageusement formé dans une zone renforcée du hayon 20. Une telle zone renforcée présente une résistance mécanique plus élevée que le reste du hayon 20. Elle est notamment réalisée dans un matériau métallique. En variante, elle est par exemple réalisée dans une matière plastique renforcée, notamment dans un matériau thermoplastique renforcé par des fibres.The rail 26 is advantageously formed in a reinforced area of the tailgate 20. Such a reinforced zone has a higher mechanical strength than the rest of the tailgate 20. It is in particular made of a metallic material. As a variant, it is for example made of a reinforced plastics material, in particular a thermoplastic material reinforced with fibers.

Le rail 26 est avantageusement formé d'une pièce avec la zone renforcée du hayon 20. Dans ce cas, il est réalisé dans le même matériau que la zone renforcée. Ce mode de réalisation est avantageux, car les efforts exercés par le point de fixation mobile 32 sur le hayon 20 s'appliquent alors dans une zone renforcée du hayon 20, ce qui réduit le risque d'une déformation du hayon 20 sous l'effet de ces efforts.The rail 26 is advantageously formed in one piece with the reinforced zone of the tailgate 20. In this case, it is made of the same material as the reinforced zone. This embodiment is advantageous because the forces exerted by the mobile attachment point 32 on the tailgate 20 then apply in a reinforced area of the tailgate 20, which reduces the risk of deformation of the tailgate 20 under the effect of these efforts.

Le point de fixation mobile 32 est avantageusement en contact mécanique avec un moyen de déplacement 36 du point de fixation mobile 32.The movable fixing point 32 is advantageously in mechanical contact with a moving means 36 of the movable fixing point 32.

Le moyen de déplacement 36 peut former un rail 26.The moving means 36 can form a rail 26.

Alternativement, ce moyen de déplacement 36 est une vis sans fin, par exemple métallique, s'étendant le long du trajet prédéfini 34 du point de fixation mobile 32 et avec laquelle le point de fixation 32 engrène. Ainsi, une rotation de la vis sans fin entraîne un déplacement du point de fixation 32 le long du trajet 34.Alternatively, this moving means 36 is an endless screw, for example a metal screw, extending along the predefined path 34 of the mobile attachment point 32 and with which the attachment point 32 meshes. Thus, a rotation of the worm causes a displacement of the attachment point 32 along the path 34.

Comme illustré sur la figure 1, le point de fixation mobile 32 se trouve éloigné de l'axe de rotation 24 du hayon 20 lorsque le hayon 20 est dans la position fermée A. Lorsque le hayon 20 est dans sa position ouverte B, donnant accès à l'intérieur du véhicule, le point de fixation mobile 32 est plus proche de l'axe de rotation 24 que dans la position fermée A du hayon 20, comme cela est représenté sur la figure 2. Selon un mode de réalisation, le point de fixation mobile 32 est disposé à proximité immédiate de l'axe de rotation 24 dans la position ouverte B du hayon 20, c'est-à-dire que l'extrémité supérieure du trajet 34 s'étend au voisinage immédiat, ou est adjacent, ou est formé par l'axe de rotation 24 du hayon 20. De cette manière, le hayon 20 est stabilisé par la barre de support rigide 30 dans sa partie supérieure et les efforts nécessaires au maintien du hayon 20 dans sa position ouverte B sont repris par la barre de support 30, ce qui a pour effet de soulager les charnières 22. Un tel agencement de la barre de support rigide 30 au niveau de la partie supérieure du hayon 20 a également l'avantage que la barre de support 30 encombre de manière minimale l'espace sous le hayon 20 en position ouverte B, ce qui facilite le chargement et déchargement des objets encombrants pour l'utilisateur.As illustrated on the figure 1 the movable attachment point 32 is remote from the axis of rotation 24 of the tailgate 20 when the tailgate 20 is in the closed position A. When the tailgate 20 is in its open position B, giving access to the interior of the vehicle the movable fixing point 32 is closer to the axis of rotation 24 than in the closed position A of the tailgate 20, as shown in FIG. figure 2 . According to one embodiment, the mobile attachment point 32 is disposed in the immediate vicinity of the axis of rotation 24 in the open position B of the tailgate 20, that is to say that the upper end of the path 34 is extends to the immediate vicinity, or is adjacent, or is formed by the axis of rotation 24 of the tailgate 20. In this way, the tailgate 20 is stabilized by the rigid support bar 30 in its upper part and the forces required to maintain the The tailgate 20 in its open position B is taken up by the support bar 30, which has the effect of relieving the hinges 22. Such an arrangement of the rigid support bar 30 at the upper part of the tailgate 20 also has the advantage that the support bar 30 minimally encumbrances the space under the tailgate 20 in the open position B, which facilitates the loading and unloading of bulky objects for the user.

Un moteur (non représenté) est avantageusement agencé à l'intérieur du hayon 20, connecté mécaniquement avec le moyen de déplacement 36 du point de fixation mobile 32. Le moteur peut être commandé par l'utilisateur pour actionner le moyen de déplacement 36 ou peut se déclencher automatiquement lorsque l'utilisateur sollicite le hayon 20 vers sa position ouverte B ou vers sa position fermée A. Le moyen de déplacement 36 déplace ainsi le point de fixation mobile 32 le long de son trajet prédéfini 34 pour mettre le hayon 20 dans sa position ouverte B ou fermée A. Le moteur peut être identique avec un moteur pour actionner un système de verrouillage d'un ensemble arrière de véhicule 10. Le moteur est par exemple agencé pour entraîner la rotation d'une vis sans fin lorsque le moyen de déplacement 36 est formé par une telle vis. Alternativement, le moteur est agencé pour actionner une courroie reliée au point de fixation 32 mobile et agencée pour déplacer le point de fixation 32 dans le rail 26, lorsque le moyen de déplacement 36 est formé par un tel rail 26.A motor (not shown) is advantageously arranged inside the tailgate 20, mechanically connected with the moving means 36 of the movable fixing point 32. The motor can be controlled by the user to actuate the moving means 36 or can is triggered automatically when the user requests the tailgate 20 to its open position B or to its closed position A. The moving means 36 thus moves the movable attachment point 32 along its predefined path 34 to put the tailgate 20 in its position. open position B or closed A. The engine may be identical with a motor for actuating a locking system of a vehicle rear assembly 10. The engine is for example arranged to cause the rotation of a worm when the means of displacement 36 is formed by such a screw. Alternatively, the motor is arranged to actuate a belt connected to the mobile attachment point 32 and arranged to move the attachment point 32 in the rail 26, when the displacement means 36 is formed by such a rail 26.

L'agencement du moteur à l'intérieur du hayon 20 permet de faciliter l'assemblage de l'ensemble arrière de véhicule 10. Ainsi, les coûts de fabrication de l'ensemble arrière de véhicule 10 peuvent être diminués.The arrangement of the engine within the tailgate 20 facilitates the assembly of the vehicle rear assembly 10. Thus, the manufacturing costs of the vehicle rear assembly 10 can be decreased.

Le fonctionnement de l'ensemble arrière de véhicule 10 selon l'invention va maintenant être décrit.The operation of the vehicle rear assembly 10 according to the invention will now be described.

Initialement, un ensemble arrière de véhicule 10 est fourni. Le hayon 20 se trouve dans sa position fermée A.Initially, a vehicle rear assembly 10 is provided. The tailgate 20 is in its closed position A.

Lorsque l'utilisateur souhaite ouvrir l'ensemble arrière de véhicule 10, il envoie un signal de commande au moteur, par exemple en déverrouillant le hayon 20. Le moteur entraine alors le moyen de déplacement 36 du point de fixation 32 dans un sens d'ouverture pour ouvrir l'ensemble arrière de véhicule 10.When the user wishes to open the rear vehicle assembly 10, he sends a control signal to the engine, for example by unlocking the tailgate 20. The motor then drives the moving means 36 of the attachment point 32 in a direction of travel. opening to open the rear vehicle assembly 10.

Le moyen de déplacement 36 déplace le point de fixation 32 vers l'axe de rotation 24 du hayon 20, au long du trajet prédéfini 34. Ce trajet prédéfini 34 est sensiblement perpendiculaire à l'axe de rotation 24 du hayon 20.The displacement means 36 moves the fixing point 32 towards the axis of rotation 24 of the tailgate 20, along the predefined path 34. This predefined path 34 is substantially perpendicular to the axis of rotation 24 of the tailgate 20.

Dans le mode de réalisation principal décrit ici, le moyen de déplacement est une vis sans fin qui est entrainée en rotation par le moteur pour déplacer le point de fixation mobile 32 le long de son filetage.In the main embodiment described herein, the moving means is a worm which is rotated by the motor to move the movable attachment point 32 along its thread.

Un dispositif d'ouverture et de fermeture équipé d'une vis sans fin nécessite moins de force pour déplacer le hayon 20 dans sa position ouverte B comparé à un système conventionnel utilisant un vérin.An opening and closing device equipped with a worm requires less force to move the tailgate 20 to its open position B compared to a conventional system using a jack.

Cette différence de force est obtenue grâce à un rapport de transmission avantageux de la vis sans fin du dispositif d'ouverture et de fermeture. En particulier, la vis sans fin permet une démultiplication de la force nécessaire pour l'ouverture du hayon 20. Cette démultiplication dépend du filetage de la vis sans fin.This difference in force is obtained thanks to an advantageous transmission ratio of the worm of the opening and closing device. In particular, worm allows a reduction of the force required for the opening of the tailgate 20. This reduction depends on the thread of the worm.

Ainsi, pour déplacer le point de fixation mobile 32 le long de la vis sans fin sur une distance prédéfinie, par exemple la distance nécessaire pour ouvrir le hayon 20, la force nécessaire pour effectuer ce déplacement est plus faible comparée à un système conventionnel équipé avec un vérin puisqu'il s'agit simplement d'entraîner la vis sans fin en rotation.Thus, to move the movable attachment point 32 along the worm over a predefined distance, for example the distance required to open the tailgate 20, the force required to effect this movement is lower compared to a conventional system equipped with a cylinder since it is simply to drive the worm in rotation.

Par conséquent, grâce à la vis sans fin, le moteur est moins sollicité comparé à un système conventionnel équipé avec un vérin. Ainsi, la durée de vie du moteur est augmentée comparé à un système conventionnel équipé avec un vérin et le moteur peut être de puissance moindre, ce qui le rend également moins encombrant.Therefore, thanks to the worm, the motor is less stressed compared to a conventional system equipped with a jack. Thus, the engine life is increased compared to a conventional system equipped with a cylinder and the engine can be less power, which also makes it less cumbersome.

Une vis sans fin permet d'améliorer la fiabilité et d'augmenter la durée de vie du dispositif d'ouverture et de fermeture par rapport à des systèmes conventionnels.An endless screw improves the reliability and increases the life of the opening and closing device compared to conventional systems.

L'utilisation d'une vis sans fin permet une adaptation du pas de vis du filetage aux propriétés du moteur afin d'obtenir une vitesse d'ouverture et de fermeture prédéfinie pour le hayon 20.The use of an endless screw allows the pitch of the thread to be adapted to the properties of the motor in order to obtain a predefined opening and closing speed for the tailgate 20.

La fabrication d'une vis sans fin est moins couteuse qu'un vérin habituellement utilisé pour l'ensemble arrière de véhicule 10. Une vis sans fin permet également une meilleure stabilité lorsque le hayon se trouve dans sa position ouverte B. En effet, la vis sans fin est rigide et maintient fermement le hayon en position ouverte B alors qu'un vérin, dont la tige est mobile par rapport au corps, est susceptible de se rétracter légèrement lorsque le hayon est ouvert, par exemple si un utilisateur prend appui dessus.The manufacture of a worm is less expensive than a cylinder usually used for the vehicle rear assembly 10. An endless screw also allows a better stability when the tailgate is in its open position B. Indeed, the worm is rigid and firmly holds the tailgate open B while a cylinder, whose rod is movable relative to the body, is likely to retract slightly when the tailgate is open, for example if a user is supported .

La barre de support rigide 30, étant solidaire en rotation par sa première extrémité avec le montant latéral 40 de l'ensemble arrière de véhicule 10 et solidaire par sa deuxième extrémité avec le point de fixation mobile 32, exerce une force sur le hayon 20 lors du déplacement du point de fixation mobile 32 vers la partie supérieure du hayon 20.The rigid support bar 30, being rotationally secured by its first end with the lateral upright 40 of the vehicle rear assembly 10 and secured at its second end with the movable fixing point 32, exerts a force on the tailgate 20 when moving the movable attachment point 32 to the upper part of the tailgate 20.

Ainsi, le hayon 20 pivote autour de son axe de rotation 24 pour atteindre sa position ouverte B.Thus, the tailgate 20 pivots about its axis of rotation 24 to reach its open position B.

Lorsque l'utilisateur souhaite fermer l'ensemble arrière de véhicule 10, il commande de nouveau le moteur, par exemple en exerçant une pression sur le hayon 20 dans sa position ouverte B, ou encore en actionnant un interrupteur de commande du moteur situé par exemple sur le hayon 20 ou sur une télécommande, par exemple sur la télécommande de verrouillage/déverrouillage des portières du véhicule. En variante, et de manière classique, le moteur peut également être actionné par l'intermédiaire d'un système de détection de mouvement ou de présence, configuré par exemple pour détecter un mouvement du pied de l'utilisateur sous le pare-chocs arrière du véhicule.When the user wishes to close the rear vehicle assembly 10, he again controls the engine, for example by exerting pressure on the tailgate 20 in its open position B, or by actuating an engine control switch located for example on the tailgate 20 or on a remote control, for example on the remote control for locking / unlocking the doors of the vehicle. Alternatively, and in a conventional manner, the motor can also be actuated via a movement or presence detection system, configured for example to detect a movement of the user's foot under the rear bumper of the vehicle.

Le moteur entraîne ensuite le moyen de déplacement 36 du point de fixation mobile 32 dans un sens de fermeture pour fermer l'ensemble arrière de véhicule 10.The motor then drives the moving means 36 of the movable attachment point 32 in a closing direction to close the rear vehicle assembly 10.

Ce moyen de déplacement 36 déplace de nouveau le point de fixation 32 sur le trajet prédéfini 34 en l'éloignant de l'axe de rotation 24 du hayon 20. Ainsi, le point de fixation mobile 32 s'éloigne de l'axe de rotation 24 du hayon 20 et le hayon 20 pivote autour de son axe de rotation 24 dans sa position fermée A.This moving means 36 again moves the attachment point 32 to the predefined path 34 away from the axis of rotation 24 of the tailgate 20. Thus, the movable attachment point 32 moves away from the axis of rotation 24 of the tailgate 20 and the tailgate 20 pivots about its axis of rotation 24 in its closed position A.

Dans un mode de réalisation alternatif, une barre rigide 30 est disposée sur chaque montant latéral 40 de l'ensemble arrière du véhicule 10. Ainsi, la stabilité de l'ensemble arrière du véhicule 10 est encore augmentée. Dans ce cas, deux moteurs peuvent être utilisés pour ouvrir l'ensemble arrière du véhicule 10, ce qui permet d'augmenter la fiabilité de l'ensemble arrière de véhicule 10. Egalement, il est ainsi possible d'ouvrir et de maintenir en position ouverte B des hayons 20 présentant une masse plus conséquente.In an alternative embodiment, a rigid bar 30 is disposed on each lateral upright 40 of the rear assembly of the vehicle 10. Thus, the stability of the rear assembly of the vehicle 10 is further increased. In this case, two motors can be used to open the rear assembly of the vehicle 10, which increases the reliability of the rear vehicle assembly 10. Also, it is thus possible to open and maintain in position open B tailgates 20 having a larger mass.

Dans un autre mode de réalisation, le hayon 20 comporte des charnières 22 disposées sur un montant latéral 40 de l'ensemble arrière du hayon 10. Dans ce cas, l'ensemble arrière de véhicule 10 comprend un hayon 20 pivotant latéralement autour d'un axe de rotation vertical. Ici, au moins une barre rigide 30 est disposée entre le montant supérieur de l'ensemble arrière de véhicule 10 et le hayon 20 similaire à ce qui a été décrit en haut.In another embodiment, the tailgate 20 includes hinges 22 disposed on a lateral upright 40 of the rear assembly of the tailgate 10. In this case, the vehicle rear assembly 10 comprises a tailgate 20 laterally pivotable about a vertical axis of rotation. Here, at least one rigid bar 30 is disposed between the upper upright of the rear vehicle assembly 10 and the tailgate 20 similar to what has been described above.

Alternativement, le moteur de l'ensemble arrière de véhicule 10 peut être agencé dans le montant latéral 40 de l'ensemble arrière 10 pour entraîner en rotation la vis sans fin 36. Dans ce cas, le moteur est relié par un engrenage à une extrémité de la vis sans fin 36.Alternatively, the engine of the vehicle rear assembly 10 can be arranged in the lateral upright 40 of the rear assembly 10 to drive the worm 36 in rotation. In this case, the motor is connected by a gear to one end. of the worm 36.

Le moteur peut être relié avec un capteur de position, indiquant la position d'ouverture pour signaler au moteur la position d'inclinaison entre les deux positions A et B du hayon 20. Ce capteur permet de détecter notamment la position ouverte B et fermée A du hayon 20 et indique au moteur de stopper le déplacement du point de fixation mobile 32. Ce capteur de position comprend par exemple un capteur intégré dans le moteur, par exemple un capteur de mesure de la position du rotor du moteur, un capteur propre à compter le nombre de tours effectués par le rotor du moteur ou un capteur de mesure du courant dans le moteur.The engine can be connected with a position sensor, indicating the open position to signal the engine the reclining position between the two positions A and B of the tailgate 20. This sensor can detect in particular the open position B and closed A of the tailgate 20 and indicates to the motor to stop the displacement of the mobile attachment point 32. This position sensor comprises for example a sensor integrated in the engine, for example a sensor for measuring the position of the rotor of the engine, a sensor specific to count the number of revolutions made by the motor rotor or a sensor measuring the current in the motor.

Le moteur peut également être relié avec un capteur de résistance, indiquant au moteur si l'ouverture ou fermeture du hayon 20 fait face à une résistance inattendue. Ainsi, le moteur peut stopper et inverser la direction du déplacement du point de fixation mobile 32 lorsque, par exemple, un objet risque être coincé dans l'ensemble arrière de véhicule 10.The motor can also be connected with a resistance sensor, indicating to the motor whether the opening or closing of the tailgate 20 is facing unexpected resistance. Thus, the motor can stop and reverse the direction of movement of the movable attachment point 32 when, for example, an object may be stuck in the rear vehicle assembly 10.

Le hayon 20 de l'ensemble arrière 10 peut être équipé avec des capteurs d'obstacle pour détecter des objets placés dans l'espace couvert par le pivotement du hayon 20 lors de son ouverture ou fermeture.The tailgate 20 of the rear assembly 10 can be equipped with obstacle sensors for detecting objects placed in the space covered by the pivoting of the tailgate 20 when it is opened or closed.

Le rail 26 du hayon 20 peut comprendre un connecteur électrique pour former une masse électrique pour une antenne de type radio ou autre.The rail 26 of the tailgate 20 may comprise an electrical connector to form an electrical ground for a radio type antenna or the like.

Le moyen de déplacement 36 du point de fixation mobile 32 peut être formé par une courroie qui est solidaire avec le point de fixation mobile 32.The moving means 36 of the movable fixing point 32 may be formed by a belt which is integral with the movable fixing point 32.

L'ensemble arrière de véhicule 10 peut simultanément s'appliquer pour un capot d'un véhicule.The rear vehicle assembly 10 can simultaneously be applied to a hood of a vehicle.

L'ensemble arrière de véhicule 10 peut être commandé par l'utilisateur à l'aide d'une télécommande.The rear vehicle assembly 10 can be controlled by the user using a remote control.

Le procédé d'ouverture et de fermeture d'un hayon 20 peut comprendre une étape de réception d'un signal d'ouverture ou de fermeture de l'ensemble arrière de véhicule 10 avant que le point de fixation mobile 32 est déplacé pour ouvrir ou fermer l'ensemble arrière 10.The method of opening and closing a tailgate 20 may include a step of receiving an opening or closing signal from the vehicle rear assembly 10 before the movable attachment point 32 is moved to open or close the rear assembly 10.

Dans une variante, l'ouverture et/ou fermeture de l'ensemble arrière 10 commence par une vérification de l'espace couvert par le pivotement du hayon 20 à l'aide des capteurs d'obstacles, afin de détecter un obstacle potentiel. Si un obstacle est détecté, le capteur émet un signal d'avertissement, qui peut être reçu par le moteur, afin de stopper l'ouverture ou la fermeture de l'ensemble arrière de véhicule 10. Ainsi une collision du hayon 20 avec l'obstacle peut être empêchée.In a variant, the opening and / or closing of the rear assembly 10 begins with a verification of the space covered by the pivoting of the tailgate 20 using the obstacle sensors, in order to detect a potential obstacle. If an obstacle is detected, the sensor emits a warning signal, which can be received by the engine, in order to stop the opening or closing of the rear vehicle assembly 10. Thus a collision of the tailgate 20 with the obstacle can be prevented.

Une vérification de l'espace couvert peut également être réalisée pendant l'ouverture et fermeture de l'ensemble arrière de véhicule 10.A verification of the covered space can also be performed during the opening and closing of the rear vehicle assembly 10.

Avantageusement, le dispositif d'ouverture et de fermeture du hayon 20 comprend en outre des moyens de désolidarisation, propre à engendrer une désolidarisation du point de fixation mobile 32 par rapport aux moyens de déplacement 36. Ainsi, il est possible de fermer manuellement le hayon 20 en cas de panne électrique empêchant l'actionnement du moteur des moyens de déplacement 36.Advantageously, the opening and closing device of the tailgate 20 further comprises means for detaching, capable of generating a separation of the movable fixing point 32 relative to the displacement means 36. Thus, it is possible to manually close the tailgate 20 in case of electrical failure preventing actuation of the motor of the moving means 36.

Dans le mode de réalisation dans lequel les moyens de déplacement 36 comprennent une vis sans fin, le point de fixation mobile 32 comprend par exemple un écrou engagé sur la vis sans fin, et les moyens de désengagement comprennent notamment des moyens configurés pour augmenter le diamètre intérieur de l'écrou de telle sorte qu'il se désengage du filetage de la vis sans fin. L'écrou est alors apte à coulisser le long de la vis sans fin en l'absence de rotation de la vis sans fin.In the embodiment in which the displacement means 36 comprise a worm, the mobile attachment point 32 comprises for example a nut engaged on the worm, and the disengagement means comprise in particular means configured to increase the diameter. inside the nut so that it disengages from the thread of the worm. The nut is then able to slide along the worm in the absence of rotation of the worm.

Tout autre moyen apte à engendrer une désolidarisation du point de fixation mobile 32 par rapport aux moyens de déplacement 36 est envisageable.Any other means capable of generating a separation of the mobile attachment point 32 with respect to the displacement means 36 is conceivable.

En option, le dispositif d'ouverture et de fermeture du hayon 20 comporte en outre un ressort (non représenté) fixé au point de fixation mobile 32 à une première de ses extrémités et fixé au hayon 20 au niveau de l'extrémité inférieure de la vis sans fin 36, c'est-à-dire au niveau de l'extrémité de la vis sans fin opposée à l'axe de rotation 24, à sa deuxième extrémité. A titre d'exemple, la deuxième extrémité de ce ressort est fixée sur un élément de support de la vis sans fin 36 solidaire du hayon 20. Le ressort est notamment un ressort hélicoïdal. Il entoure par exemple la vis sans fin 36. Le ressort est comprimé dans la position fermée A du hayon 20 et étiré dans la position ouverte B du hayon 20. Un tel ressort permet d'accompagner le mouvement du hayon 20 entre sa position ouverte B et sa position fermée A et de réduire les efforts entre la vis sans fin 36 et le point de fixation mobile 32.Optionally, the opening and closing device of the tailgate 20 further comprises a spring (not shown) attached to the movable attachment point 32 at a first end thereof and attached to the tailgate 20 at the lower end of the tailgate. worm 36, that is to say at the end of the worm opposite the axis of rotation 24 at its second end. For example, the second end of this spring is fixed on a support member of the worm 36 secured to the tailgate 20. The spring is in particular a helical spring. It surrounds for example the worm 36. The spring is compressed in the closed position A of the tailgate 20 and stretched in the open position B of the tailgate 20. Such a spring can accompany the movement of the tailgate 20 between its open position B and its closed position A and reduce the forces between the worm 36 and the movable attachment point 32.

Selon une autre option (non représentée), le dispositif d'ouverture et de fermeture du hayon comprend en outre un vérin, en particulier hydraulique, dont une première extrémité est solidaire du point de fixation mobile 36 et une deuxième extrémité, opposée à la première, est fixée au hayon 20 au niveau de l'extrémité inférieure de la vis sans fin 36. A titre d'exemple, la deuxième extrémité de ce vérin est fixée sur un élément de support de la vis sans fin 36 solidaire du hayon 20. Ce vérin permet la fermeture manuelle du hayon 20 en cas de panne électrique empêchant l'actionnement du moteur commandant le déplacement du point de fixation 32 par l'intermédiaire des moyens de déplacement 36, notamment après actionnement des moyens de désengagement mentionnés ci-dessus.According to another option (not shown), the opening and closing device of the tailgate further comprises a cylinder, in particular a hydraulic cylinder, a first end of which is secured to the mobile attachment point 36 and a second end, opposite the first one. , is attached to the tailgate 20 at the lower end of the worm 36. For example, the second end of this jack is fixed on a worm support member 36 integral with the tailgate 20. This jack allows the manual closing of the tailgate 20 in the event of an electrical failure preventing the actuation of the motor controlling the displacement of the attachment point 32 via the moving means 36, in particular after actuation of the disengagement means mentioned above.

Claims (11)

Ensemble arrière de véhicule (10) comprenant au moins un montant (40) de hayon, un hayon (20) et au moins un dispositif d'ouverture et de fermeture, le hayon (20) étant mobile en rotation par rapport au montant (40) autour d'un axe de rotation (24) s'étendant dans une partie supérieure du montant (40) et dans une partie supérieure du hayon (20), le dispositif d'ouverture et de fermeture comprenant : - au moins une barre de support rigide (30) comprenant une première extrémité, montée mobile en rotation sur la partie supérieure du montant (40), et une deuxième extrémité, montée mobile en rotation sur un point de fixation mobile (32) du hayon (20), - le point de fixation mobile (32) étant déplaçable en translation selon un trajet (34) s'étendant sensiblement perpendiculairement à l'axe de rotation (24) du hayon (20), caractérisé en ce que le trajet (34) du point de fixation mobile (32) de la barre (30) s'étend dans la partie supérieure du hayon (20). Rear vehicle assembly (10) comprising at least one tailgate upright (40), a tailgate (20) and at least one opening and closing device, the tailgate (20) being rotatable relative to the upright (40) ) about an axis of rotation (24) extending in an upper part of the upright (40) and in an upper part of the tailgate (20), the opening and closing device comprising: - At least one rigid support bar (30) comprising a first end, rotatably mounted on the upper portion of the upright (40), and a second end rotatably mounted on a movable mounting point (32) of the tailgate (20) the movable fixing point (32) being displaceable in translation along a path (34) extending substantially perpendicular to the axis of rotation (24) of the tailgate (20), characterized in that the path (34) of the point movable attachment (32) of the bar (30) extends in the upper part of the tailgate (20). Ensemble arrière de véhicule (10) selon la revendication 1, dans lequel le hayon (20) est mobile entre une position fermée (A), dans laquelle le hayon (20) s'étend sensiblement parallèlement au montant (40), et une position ouverte (B), dans laquelle le hayon (20) s'étend sensiblement perpendiculairement au montant (40), le point de fixation mobile (32) de la barre (30) étant disposé au voisinage de l'axe de rotation (24) du hayon (20) lorsque ledit hayon est dans la position ouverte (B).A rear vehicle assembly (10) according to claim 1, wherein the tailgate (20) is movable between a closed position (A), wherein the tailgate (20) extends substantially parallel to the post (40), and a position open (B), wherein the tailgate (20) extends substantially perpendicularly to the upright (40), the movable fixing point (32) of the bar (30) being disposed in the vicinity of the axis of rotation (24) of the tailgate (20) when said tailgate is in the open position (B). Ensemble arrière de véhicule (10) selon la revendication 1 ou 2, dans lequel le hayon (20) comprend un rail (26) s'étendant selon le trajet (34) du point de fixation mobile (3), ledit rail (26) recevant ledit point de fixation (32).A vehicle rear assembly (10) according to claim 1 or 2, wherein the tailgate (20) comprises a rail (26) extending along the path (34) of the movable attachment point (3), said rail (26) receiving said attachment point (32). Ensemble arrière de véhicule (10) selon la revendication 3, dans lequel le rail (26) est en matériau métallique et comprend un connecteur électrique agencé pour former une masse pour une antenne de radio.A vehicle rear assembly (10) according to claim 3, wherein the rail (26) is made of metallic material and includes an electrical connector arranged to form a ground for a radio antenna. Ensemble arrière de véhicule (10) selon les revendications 1 à 4, dans lequel la barre de support rigide (30) présente une forme courbe entre sa première extrémité et sa deuxième extrémité.A vehicle rear assembly (10) according to claims 1 to 4, wherein the rigid support bar (30) has a curved shape between its first end and its second end. Ensemble arrière de véhicule (10) selon les revendications 1 à 5, dans lequel une vis sans fin est agencée à l'intérieur du hayon (20), destinée à déplacer le point de fixation mobile (32) de la barre de support (30).Vehicle rear assembly (10) according to claims 1 to 5, wherein a worm is arranged inside the tailgate (20) for moving the movable attachment point (32) of the support bar (30). ). Ensemble arrière de véhicule (10) selon les revendications 1 à 5, dans lequel une courroie est agencée à l'intérieur du hayon (20), destinée à déplacer le point de fixation mobile (32) de la barre de support (30).A vehicle rear assembly (10) according to claims 1 to 5, wherein a belt is arranged within the tailgate (20) for moving the movable attachment point (32) of the support bar (30). Ensemble arrière de véhicule (10) selon les revendications 1 à 7, dans lequel un moteur est intégré dans le hayon (20), destiné à entraîner au long d'une trajectoire linéaire (34) le point de fixation mobile (32) de la barre de support (30) à l'intérieur du hayon (20).A vehicle rear assembly (10) according to claims 1 to 7, wherein a motor is integrated in the tailgate (20) for driving along a linear path (34) the movable attachment point (32) of the support bar (30) inside the tailgate (20). Ensemble arrière de véhicule (10) selon les revendications 1 à 7, dans lequel un moteur est intégré dans le montant (40) de hayon (20), destiné à entraîner en rotation la barre de support rigide (30).A vehicle rear assembly (10) according to claims 1 to 7, wherein a motor is integrated in the tailgate upright (40) for rotating the rigid support bar (30). Procédé d'ouverture et de fermeture d'un hayon (20) d'un véhicule, le procédé comprenant les étapes suivantes: - fourniture d'un ensemble arrière de véhicule (10) selon les revendications 1 à 9; - déplacement du point de fixation mobile (32) vers la partie supérieure du hayon (20) pour placer le hayon (20) en position ouverte (B) par une rotation autour de l'axe de rotation (24); - déplacement du point de fixation mobile (32) vers le milieu du hayon (20) pour placer le hayon (20) en position fermée (A) par une rotation autour de l'axe de rotation (24). A method of opening and closing a tailgate (20) of a vehicle, the method comprising the steps of: - providing a rear vehicle assembly (10) according to claims 1 to 9; moving the movable fixing point (32) towards the upper part of the tailgate (20) to place the tailgate (20) in the open position (B) by a rotation about the axis of rotation (24); - Moving the movable attachment point (32) to the middle of the tailgate (20) to position the tailgate (20) in the closed position (A) by a rotation about the axis of rotation (24). Procédé selon la revendication 10, dans lequel le déplacement du point de fixation mobile (32) vers la partie supérieure du hayon (40) s'effectue jusqu'à ce que ledit point de fixation mobile (32) se trouve au voisinage de l'axe de rotation (24) du hayon (20).A method according to claim 10, wherein moving the movable attachment point (32) to the upper part of the tailgate (40) is performed until said movable attachment point (32) is in the vicinity of the axis of rotation (24) of the tailgate (20).
EP15182752.4A 2014-08-28 2015-08-27 Rear assembly of a vehicle for opening and closing a hatchback Not-in-force EP2990574B1 (en)

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FR1458070A FR3025238B1 (en) 2014-08-28 2014-08-28 REAR VEHICLE ASSEMBLY FOR OPENING AND CLOSING A TAILGATE

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CN110088423B (en) * 2016-12-22 2021-04-13 环球城市电影有限责任公司 Gun type gate locked by cam

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EP2990574B1 (en) 2019-04-03
FR3025238B1 (en) 2019-07-12
FR3025238A1 (en) 2016-03-04

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