EP1188892A1 - Operating device for opening a vehicle element, its use and a vehicle provided with such a device - Google Patents

Operating device for opening a vehicle element, its use and a vehicle provided with such a device Download PDF

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Publication number
EP1188892A1
EP1188892A1 EP01420195A EP01420195A EP1188892A1 EP 1188892 A1 EP1188892 A1 EP 1188892A1 EP 01420195 A EP01420195 A EP 01420195A EP 01420195 A EP01420195 A EP 01420195A EP 1188892 A1 EP1188892 A1 EP 1188892A1
Authority
EP
European Patent Office
Prior art keywords
lever
opening
articulated
activator
vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01420195A
Other languages
German (de)
French (fr)
Inventor
Jean-Noel Charon
Dominique Raffard
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.)
Stabilus GmbH
Plastic Omnium Composites SA
Original Assignee
Stabilus GmbH
Inoplast 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 Stabilus GmbH, Inoplast SA filed Critical Stabilus GmbH
Publication of EP1188892A1 publication Critical patent/EP1188892A1/en
Withdrawn legal-status Critical Current

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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
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1091—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a gas spring
    • 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
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/606—Accessories therefor
    • E05Y2201/618—Transmission ratio variation
    • 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

  • the invention relates to a device for assisting with the operation of an opening leaf articulated on the body of a vehicle automobile.
  • the invention also relates to a use of such a device and to a motor vehicle comprising a such device.
  • an activator formed by a gas spring to assist the opening an opening, such as a tailgate, a rear flap, a trunk door or engine hood.
  • the spring gas is articulated on the vehicle body or on a part secured to it by one of its ends and, by its other end, on the opening considered.
  • US-A-6,041,548 proposes an articulation system comprising an actuator formed by a gas spring and two levers of which only one is bent.
  • the force exerted by the gas spring tends to open the system which is therefore not stable in this configuration. This results in prolonged stresses on the opening, these constraints being all the more important as the spring to gas is powerful, so they can induce opening deformations.
  • the invention relates to a device of the aforementioned type which includes an activator, a first lever articulated by a first end on a support and by a second end on a second lever, itself hinged on a plate, the activator being, meanwhile, articulated on the support and on the second lever, while the support and the plate are respectively secured to the opening and the vehicle body, or vice versa, characterized in that, in the closed position of the sash, the first lever is articulated on the second lever in an overall area aligned with the activator.
  • the use of the two levers allows to evolve, depending on the orientation of the two levers which depends on the position of the sash, the orientation of the activator and the effort it exerts on the opening.
  • the articulated structure formed of the two levers can orient the activator, depending on the degree opening, so that the effort it exerts on this opening is correctly directed.
  • the intense effort generated by the activator in the closed position essentially results in a compressive force exerted on the second lever, this effort being taken up by the first lever. So the opening is not subjected to intense efforts and is not likely to deform.
  • the invention also relates to the use of a device as previously described for assistance with operation of an opening leaf on a motor vehicle, this opening comprising a lateral upright forming an inclined section, from an upper part of the opening, towards another part of the vehicle when the door is closed.
  • the invention finally relates to a motor vehicle equipped of a device as previously described. Use such a vehicle remains easy, especially for opening or the closing of its doors, including when these have a relatively complex form.
  • the motor vehicle V shown in FIGS. 1, 3 and 5 includes a box 1 fitted with doors 2 and a tailgate or rear flap 3.
  • This tailgate is articulated on the body 1 at the hinge level, only one of which is shown with reference 4, defining a pivot axis X-X 'of the tailgate 3 compared to the body 1.
  • the tailgate 3 comprises an upper strip 31 in which are fixed the hinges 4 and a bottom panel 32 possibly forming a reception area for signaling 33.
  • the strip 31 is connected to the panel 32 by lateral uprights, only one of which is visible on the figures with the reference 34.
  • a window 35 is arranged in the opening formed between the elements 31, 32 and 34.
  • the post 34 includes a section 34 a extending in a direction YY 'inclined to the vertical ZZ' when the vehicle V lies on a plane ground.
  • the section 34a extends along the direction Y-Y ', towards the front of the vehicle V from the headband 31.
  • the device 10 for assisting in the opening of the opening leaf 3 is disposed between an upright 11 of the body 1, formed in the vicinity of the opening of the rear trunk, and section 34 a of the upright 34.
  • the device 10 comprises a plate 101 intended to be fixed by screws, represented by their axis lines 102, on the upright 11 which is integral with the box 1.
  • a support 103 is provided to be secured to the section 34 a of the post 34 by means of screws, represented by their axis lines 104.
  • a first lever 105 is articulated on the support 103 by virtue of an axis 106 passing through a first end 105 a of the lever 105 and a tab 103 a of the support 103.
  • the lever 105 is articulated, around an axis 107, on a second lever 108, itself articulated, around an axis 109, on a tab 101 a of the plate 101.
  • a gas spring 110 is installed between the support 103 and the lever 108. More specifically, the spring 110 comprises a cylindrical part 110 a provided with a head 110 b intended to cover a ball joint 103 b secured to the support 103, while one end 110 c of the rod 110 d of the spring 110 covers a ball joint 108 c secured to the lever 108.
  • the first lever 105 is bent, as is the second lever 108.
  • the geometry of the elements 101 to 110 and the location of the elements 101 and 103 are chosen such that, in the closed position of the tailgate 3, a part 108 e of the second lever 108, defined between the zone 108 d and the end 108 b , approximately extends the spring 110. This part 108 e then works essentially in bending / compression while the first lever 105 works essentially in extension between its ends 105 a and 105 b .
  • the angle between the lever 108 and the lever 105 is noted ⁇ .
  • the angle ⁇ is small, which corresponds to the fact that the part 108 e substantially extends the spring 110.
  • the elements 101 to 110 are produced so that this angle is as small as possible. , in particular less than 30 °, preferably less than 20 °, in the position of FIG. 2. Conclusive tests have been carried out with values of ⁇ between 15 and 17 °.
  • the angle ⁇ is not zero in the position of Figure 2 in order to avoid blockage by "knee brace” effect. For the same reason, this angle ⁇ is less than 180 ° in the position in Figure 6.
  • the arm lever 105 relative to axis 109 is substantially equal to the lever arm of the gas spring 110 relative to this axis. This compensates for the effort developed by the spring to gas 110.
  • This force is, in particular, transmitted to the upright 34 and has the effect of displacing the support 103 and the lever 105 to pivot the lever 108 around the axis 109, as shown by the arrow F 3 in FIG. 4.
  • This pivoting induces a displacement of the ends 105 b and 108 b of the levers 105 and 108 in an arc of a circle C while the ball joint 108 c and the end 110 c of the spring 110 are displaced in an arc of a circle C ', concentric with the arc C and centered on the axis 109.
  • This movement of the end 108 b is due to the force transmitted by the end 105 b of the lever 105.
  • the displacement of the lever 108 according to the arrow F 3 has the effect of displacing the gas spring 110 from the position of FIG. 2 to that of FIG. 4 where the direction of the force F 1 has changed with respect to the configuration of Figure 2, this direction being adapted to exert on the tailgate 3 effective assistance to the opening movement.
  • the continuation of the opening movement induces the continuation of the pivoting of the lever 108 around the axis 109, the axis 107 and the ends 105 b and 108 b continuing to move on the arc C while the ball joint 108 c and the end 110 c continue to move on the arc C '.
  • the direction of the force F 1 changes accordingly and remains adapted to the position of the tailgate 3.
  • the articulated structure formed of the levers 105 and 108 makes it possible to orient the gas spring 110 as a function of the degree of opening of the tailgate 3, so that the force F 1 exerted by this spring is permanently correctly oriented by compared to tailgate 3 and body 1.
  • the device of the invention in the closed position of the tailgate 3, is particularly compact and can be housed in a gutter formed by the upright 11 and / or the upright 34 while the first lever 105 effectively compensates for the force F 1 due to the gas spring, which makes it possible to reduce the stresses exerted on the structure of the tailgate 3.
  • the invention makes it possible in particular to use a spring gas while the tailgate 3 includes a window 35 which is largely projecting towards the rear fenders of the vehicle, point that it is arranged in an area where are usually articulated gas springs of known devices.
  • the geometry of the elements 101 to 110 and the intensity of the force F 1 are such that, from a certain degree of opening, for example the position shown in FIGS. 3 and 4, the assistance generated by the device of the invention allows automatic opening of the tailgate 3.
  • the device of the invention also makes it possible to assist the closing movement of the tailgate while preventing it from violently hits the cash register.
  • the invention has been shown with a tailgate of vehicle. It is of course applicable to other types opening, for example a trunk door, a shutter rear or a bonnet.
  • the elements 101 to 110 constituting the device 10 can be made of steel, aluminum, material composite or any other material, depending on requirements retained for the vehicle and the weight of the door.
  • the invention has been shown with a trained activator by a gas spring.
  • Other types of activators can be used, such as an electric, hydraulic or pneumatic or mechanical device with progressive elasticity of the helical spring type.
  • the invention has been shown during its use for a tailgate. It is applicable with any type of opening such as engine hoods, doors or rear trunk doors.

Landscapes

  • Superstructure Of Vehicle (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

The device for assisting the opening of a paneel (34) articulated on the automobile bodywork comprises an activator (110), a first lever (105) articulated at one end (105a) on a support (103) and at the other end (105b) on a second lever (108) which is itself articulated (108aa) on a plate (101). The support and the plate are integral with the panel and the bodywork respectively.

Description

L'invention a trait à un dispositif d'assistance à la manoeuvre d'un ouvrant articulé sur la caisse d'un véhicule automobile. L'invention a également trait à une utilisation d'un tel dispositif et à un véhicule automobile comprenant un tel dispositif.The invention relates to a device for assisting with the operation of an opening leaf articulated on the body of a vehicle automobile. The invention also relates to a use of such a device and to a motor vehicle comprising a such device.

Dans le domaine de la construction de véhicules automobiles, il est connu, par exemple de WO-A-99/12758, d'utiliser un activateur formé par un ressort à gaz pour assister la manoeuvre d'un ouvrant tel qu'un hayon, un volet arrière, une porte de coffre ou un capot moteur. Dans ce cas, le ressort à gaz est articulé sur la caisse du véhicule ou sur une partie solidaire de celle-ci par l'une de ses extrémités et, par son autre extrémité, sur l'ouvrant considéré. Une telle disposition convient lorsque la géométrie du hayon permet de définir, à tout moment au cours de son mouvement d'ouverture ou de fermeture, une ligne droite entre les points d'articulation du ressort à gaz, cette ligne droite correspondant à la direction d'application de l'effort d'assistance à l'ouverture exercée par le ressort.In the field of motor vehicle construction, it is known, for example from WO-A-99/12758, to use an activator formed by a gas spring to assist the opening an opening, such as a tailgate, a rear flap, a trunk door or engine hood. In this case, the spring gas is articulated on the vehicle body or on a part secured to it by one of its ends and, by its other end, on the opening considered. Such a provision suitable when the geometry of the tailgate makes it possible to define, at any time during its opening movement or closure, a straight line between the points of articulation of the gas spring, this straight line corresponding to the direction of application of the opening assistance effort exerted by the spring.

Cependant, dans le cas d'un ouvrant tel qu'un hayon arrière présentant une géométrie avec un bord de forme complexe tel que représenté à la figure 1 ci-jointe, il n'est pas possible d'articuler un activateur entre la caisse et ce bord car la direction d'application de l'effort généré par l'activateur ne serait pas compatible avec l'assistance recherchée, son moment par rapport à l'axe d'articulation étant suffisant.However, in the case of an opening such as a tailgate back presenting a geometry with a shape edge complex as shown in Figure 1 attached, it is not not possible to articulate an activator between the body and this edge because the direction of application of the force generated by activator would not be compatible with assistance sought, its moment relative to the axis of articulation being sufficient.

US-A-6,041,548 propose un système d'articulation comprenant un actionneur formé par un ressort à gaz et deux leviers dont un seul est coudé. En configuration fermé de ce système, l'effort exercé par le ressort à gaz tend à ouvrir le système qui n'est donc pas stable dans cette configuration. Il en résulte des contraintes prolongées sur l'ouvrant, ces contraintes étant d'autant plus importantes que le ressort à gaz est puissant, de sorte qu'elles peuvent induire des déformations de l'ouvrant.US-A-6,041,548 proposes an articulation system comprising an actuator formed by a gas spring and two levers of which only one is bent. In closed configuration of this system, the force exerted by the gas spring tends to open the system which is therefore not stable in this configuration. This results in prolonged stresses on the opening, these constraints being all the more important as the spring to gas is powerful, so they can induce opening deformations.

C'est à ces problèmes qu'entend plus particulièrement répondre l'invention en proposant une nouvelle structure de dispositif d'assistance qui induit une orientation efficace de l'activateur et de l'effort qu'il génère, y compris en configuration fermée de l'ouvrant et lorsque l'ouvrant avec lequel il est utilisé a une forme complexe.It is to these problems that we hear more particularly respond to the invention by proposing a new structure for assistance device which induces an effective orientation of the activator and the effort it generates, including closed configuration of the sash and when the sash with which it is used has a complex shape.

Dans cet esprit, l'invention concerne un dispositif du type précité qui comprend un activateur, un premier levier articulé par une première extrémité sur un support et par une seconde extrémité sur un second levier, lui-même articulé sur une platine, l'activateur étant, quant à lui, articulé sur le support et sur le second levier, alors que le support et la platine sont respectivement solidaires de l'ouvrant et de la caisse du véhicule, ou réciproquement, caractérisé en ce que, en position fermée de l'ouvrant, le premier levier est articulé sur le second levier dans une zone globalement alignée avec l'activateur.In this spirit, the invention relates to a device of the aforementioned type which includes an activator, a first lever articulated by a first end on a support and by a second end on a second lever, itself hinged on a plate, the activator being, meanwhile, articulated on the support and on the second lever, while the support and the plate are respectively secured to the opening and the vehicle body, or vice versa, characterized in that, in the closed position of the sash, the first lever is articulated on the second lever in an overall area aligned with the activator.

Grâce à l'invention, l'utilisation des deux leviers permet de faire évoluer, en fonction de l'orientation des deux leviers qui dépend de la position de l'ouvrant, l'orientation de l'activateur et de l'effort qu'il exerce sur l'ouvrant. En d'autres termes, la structure articulée formée des deux leviers permet d'orienter l'activateur, en fonction du degré d'ouverture de l'ouvrant, de façon à ce que l'effort qu'il exerce sur cet ouvrant soit correctement dirigé. Grâce à l'alignement de l'activateur avec la zone d'articulation du premier levier sur le second, l'effort intense généré par l'activateur en position fermée résulte essentiellement dans un effort de compression exercé sur le second levier, cet effort étant repris par le premier levier. Ainsi, l'ouvrant n'est pas soumis à des efforts intenses et ne risque pas de se déformer.Thanks to the invention, the use of the two levers allows to evolve, depending on the orientation of the two levers which depends on the position of the sash, the orientation of the activator and the effort it exerts on the opening. In in other words, the articulated structure formed of the two levers can orient the activator, depending on the degree opening, so that the effort it exerts on this opening is correctly directed. Thanks to alignment of the activator with the articulation area of the first lever on the second, the intense effort generated by the activator in the closed position essentially results in a compressive force exerted on the second lever, this effort being taken up by the first lever. So the opening is not subjected to intense efforts and is not likely to deform.

Selon des aspects avantageux mais non obligatoires de l'invention, le dispositif incorpore une ou plusieurs des caractéristiques suivantes :

  • en position fermée de l'ouvrant, le premier levier travaille principalement en extension, en réaction à un effort exercé par l'activateur sur le second levier.
  • le second levier définit trois zones d'articulation non alignées respectivement prévues pour son articulation avec la platine, l'activateur et le premier levier.
  • le second levier est articulé, à une première extrémité, sur la platine et, à sa seconde extrémité opposée, au premier levier, l'activateur étant articulé sur ce second levier dans une zone intermédiaire. Ainsi, le second levier pivote autour de sa première extrémité en étant commandé par le premier levier, ce qui induit un déplacement de la zone intermédiaire impliquant une modification de l'orientation de l'activateur.
  • le premier levier est coudé.
  • la direction de l'activateur est apte à évoluer, au cours d'un mouvement d'ouverture ou de fermeture de l'ouvrant, en fonction de la position du premier levier autour de son axe d'articulation sur le support.
  • le second levier est un levier coudé articulé, par ses extrémités, respectivement à la platine et au premier levier.
  • l'activateur est un ressort à gaz.
According to advantageous but not compulsory aspects of the invention, the device incorporates one or more of the following characteristics:
  • in the closed position of the opening, the first lever works mainly in extension, in reaction to a force exerted by the activator on the second lever.
  • the second lever defines three non-aligned articulation zones respectively provided for its articulation with the plate, the activator and the first lever.
  • the second lever is articulated, at a first end, on the plate and, at its second opposite end, to the first lever, the activator being articulated on this second lever in an intermediate zone. Thus, the second lever pivots around its first end while being controlled by the first lever, which induces a displacement of the intermediate zone implying a modification of the orientation of the activator.
  • the first lever is bent.
  • the direction of the activator is capable of changing, during an opening or closing movement of the opening, depending on the position of the first lever around its axis of articulation on the support.
  • the second lever is a bent lever articulated, by its ends, respectively to the plate and to the first lever.
  • the activator is a gas spring.

L'invention concerne également l'utilisation d'un dispositif tel que précédemment décrit pour l'assistance à la manoeuvre d'un ouvrant sur un véhicule automobile, cet ouvrant comprenant un montant latéral formant une section inclinée, à partir d'une partie supérieure de l'ouvrant, en direction d'une autre partie du véhicule lorsque l'ouvrant est fermé.The invention also relates to the use of a device as previously described for assistance with operation of an opening leaf on a motor vehicle, this opening comprising a lateral upright forming an inclined section, from an upper part of the opening, towards another part of the vehicle when the door is closed.

L'invention concerne enfin un véhicule automobile équipé d'un dispositif tel que précédemment décrit. L'utilisation d'un tel véhicule demeure facile, notamment pour l'ouverture ou la fermeture de ses ouvrants, y compris lorsque ceux-ci ont une forme relativement complexe.The invention finally relates to a motor vehicle equipped of a device as previously described. Use such a vehicle remains easy, especially for opening or the closing of its doors, including when these have a relatively complex form.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaítront plus clairement à la lumière de la description qui va suivre d'un mode de réalisation d'un dispositif conforme à l'invention et de son utilisation dans un véhicule automobile, donnée uniquement à titre d'exemple et faite en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue de côté de la partie arrière d'un véhicule conforme à l'invention en position fermée de son hayon arrière, le dispositif d'assistance à l'ouverture étant représenté par transparence à travers un montant du hayon et un montant de la caisse du véhicule ;
  • la figure 2 est une vue à plus grande échelle du dispositif d'assistance à la manoeuvre utilisé dans le véhicule dans la position de la figure 1 ;
  • la figure 3 est une vue analogue à la figure 1 alors que le hayon est en cours d'ouverture ;
  • la figure 4 est une vue analogue à la figure 2 alors que le dispositif est dans la position de la figure 3 ;
  • la figure 5 est une vue analogue à la figure 1 alors que le hayon est en position ouverte et
  • la figure 6 est une vue analogue à la figure 2 alors que le dispositif est dans la position de la figure 5.
The invention will be better understood and other advantages thereof will appear more clearly in the light of the following description of an embodiment of a device according to the invention and of its use in a motor vehicle , given solely by way of example and with reference to the appended drawings in which:
  • Figure 1 is a side view of the rear part of a vehicle according to the invention in the closed position of its tailgate, the opening assistance device being shown by transparency through an upright of the tailgate and a amount of the vehicle body;
  • Figure 2 is an enlarged view of the maneuvering assistance device used in the vehicle in the position of Figure 1;
  • Figure 3 is a view similar to Figure 1 while the tailgate is being opened;
  • Figure 4 is a view similar to Figure 2 while the device is in the position of Figure 3;
  • FIG. 5 is a view similar to FIG. 1 while the tailgate is in the open position and
  • FIG. 6 is a view similar to FIG. 2 while the device is in the position of FIG. 5.

Le véhicule automobile V représenté sur les figures 1, 3 et 5 comprend une caisse 1 équipée de portières 2 et d'un hayon ou volet arrière 3. Ce hayon est articulé sur la caisse 1 au niveau de charnières, dont une seule est représentée avec la référence 4, définissant un axe de pivotement X-X' du hayon 3 par rapport à la caisse 1.The motor vehicle V shown in FIGS. 1, 3 and 5 includes a box 1 fitted with doors 2 and a tailgate or rear flap 3. This tailgate is articulated on the body 1 at the hinge level, only one of which is shown with reference 4, defining a pivot axis X-X 'of the tailgate 3 compared to the body 1.

Le hayon 3 comprend un bandeau supérieur 31 dans lequel sont fixées les charnières 4 et un panneau inférieur 32 formant, éventuellement, une zone de réception de feux de signalisation 33. Le bandeau 31 est relié au panneau 32 par des montants latéraux, dont un seul est visible sur les figures avec la référence 34. Une vitre 35 est disposée dans l'ouverture formée entre les éléments 31, 32 et 34.The tailgate 3 comprises an upper strip 31 in which are fixed the hinges 4 and a bottom panel 32 possibly forming a reception area for signaling 33. The strip 31 is connected to the panel 32 by lateral uprights, only one of which is visible on the figures with the reference 34. A window 35 is arranged in the opening formed between the elements 31, 32 and 34.

Le montant 34 comprend une section 34a s'étendant selon une direction Y-Y' inclinée par rapport à la verticale Z-Z' lorsque le véhicule V repose sur un sol plan. La section 34a s'étend, selon la direction Y-Y', vers l'avant du véhicule V à partir du bandeau 31.The post 34 includes a section 34 a extending in a direction YY 'inclined to the vertical ZZ' when the vehicle V lies on a plane ground. The section 34a extends along the direction Y-Y ', towards the front of the vehicle V from the headband 31.

Le dispositif 10 d'assistance à la manoeuvre de l'ouvrant 3 est disposé entre un montant 11 de la caisse 1, formé au voisinage de l'ouverture du coffre arrière, et la section 34a du montant 34.The device 10 for assisting in the opening of the opening leaf 3 is disposed between an upright 11 of the body 1, formed in the vicinity of the opening of the rear trunk, and section 34 a of the upright 34.

Plus précisément, le dispositif 10 comprend une platine 101 prévue pour être fixée par des vis, représentées par leurs traits d'axe 102, sur le montant 11 qui est solidaire de la caisse 1.More specifically, the device 10 comprises a plate 101 intended to be fixed by screws, represented by their axis lines 102, on the upright 11 which is integral with the box 1.

Par ailleurs, un support 103 est prévu pour être fixé sur la section 34a du montant 34 grâce à des vis, représentées par leurs traits d'axes 104.Furthermore, a support 103 is provided to be secured to the section 34 a of the post 34 by means of screws, represented by their axis lines 104.

Un premier levier 105 est articulé sur le support 103 grâce à un axe 106 traversant une première extrémité 105a du levier 105 et une patte 103a du support 103.A first lever 105 is articulated on the support 103 by virtue of an axis 106 passing through a first end 105 a of the lever 105 and a tab 103 a of the support 103.

A son extrémité opposée, le levier 105 est articulé, autour d'un axe 107, sur un second levier 108, lui-même articulé, autour d'un axe 109, sur une patte 101a de la platine 101.At its opposite end, the lever 105 is articulated, around an axis 107, on a second lever 108, itself articulated, around an axis 109, on a tab 101 a of the plate 101.

Un ressort à gaz 110 est installé entre le support 103 et le levier 108. Plus précisément, le ressort 110 comprend une partie cylindrique 110a munie d'une tête 110b prévue pour coiffer une rotule 103b solidaire du support 103, alors qu'une extrémité 110c de la tige 110d du ressort 110 coiffe une rotule 108c solidaire du levier 108.A gas spring 110 is installed between the support 103 and the lever 108. More specifically, the spring 110 comprises a cylindrical part 110 a provided with a head 110 b intended to cover a ball joint 103 b secured to the support 103, while one end 110 c of the rod 110 d of the spring 110 covers a ball joint 108 c secured to the lever 108.

Le premier levier 105 est coudé, de même que le second levier 108.The first lever 105 is bent, as is the second lever 108.

On note 108a la première extrémité du levier 108 par laquelle il est articulé sur la patte 101a. On note 108b l'extrémité opposée du levier 108 par laquelle il est articulé sur la seconde extrémité 105b du levier 105. On note 108d la zone du levier 108 à partir de laquelle s'étend la rotule 108c. Les parties 108a, 108b et 108d du levier 108 ne sont pas alignées, de telle sorte qu'elles définissent un triangle géométrique T, non plat, représenté en traits mixtes et en grisé aux figures 2 et 4.We note 108 at the first end of the lever 108 by which it is articulated on the tab 101 a . We denote 108 b the opposite end of the lever 108 by which it is articulated on the second end 105 b of the lever 105. We denote 108 d the region of the lever 108 from which the ball joint 108 c extends. The parts 108 a , 108 b and 108 d of the lever 108 are not aligned, so that they define a geometric triangle T, not flat, shown in dashed lines and in gray in FIGS. 2 and 4.

La géométrie des éléments 101 à 110 et l'emplacement des éléments 101 et 103 sont choisis de telle sorte que, en position fermée du hayon 3, une partie 108e du second levier 108, définie entre la zone 108d et l'extrémité 108b, prolonge approximativement le ressort 110. Cette partie 108e travaille alors essentiellement en flexion/compression alors que le premier levier 105 travaille essentiellement en extension entre ses extrémités 105a et 105b.The geometry of the elements 101 to 110 and the location of the elements 101 and 103 are chosen such that, in the closed position of the tailgate 3, a part 108 e of the second lever 108, defined between the zone 108 d and the end 108 b , approximately extends the spring 110. This part 108 e then works essentially in bending / compression while the first lever 105 works essentially in extension between its ends 105 a and 105 b .

Dans cette position, l'effort F1 généré par le ressort 110 est intense et est contenu par le système articulé formé des éléments 101, 103, 105 et 108.In this position, the force F 1 generated by the spring 110 is intense and is contained by the articulated system formed of the elements 101, 103, 105 and 108.

On note α l'angle entre le levier 108 et le levier 105. On note β l'angle entre le levier 105 et la direction de la tige 110d, c'est-à-dire de l'effort F1.The angle between the lever 108 and the lever 105 is noted α. The angle between the lever 105 and the direction of the rod 110 d , that is to say of the force F 1, is noted β.

Dans la position de la figure 2, l'angle β est faible, ce qui correspond au fait que la partie 108e prolonge sensiblement le ressort 110. En pratique, on réalise les éléments 101 à 110 pour que cet angle soit le plus faible possible, notamment inférieur à 30°, de préférence inférieur à 20°, dans la position de la figure 2. Des essais concluants ont été conduits avec des valeurs de β comprises entre 15 et 17°.In the position of FIG. 2, the angle β is small, which corresponds to the fact that the part 108 e substantially extends the spring 110. In practice, the elements 101 to 110 are produced so that this angle is as small as possible. , in particular less than 30 °, preferably less than 20 °, in the position of FIG. 2. Conclusive tests have been carried out with values of β between 15 and 17 °.

L'angle α est non nul dans la position de la figure 2 afin d'éviter un blocage par effet "de genouillère". Pour la même raison, cet angle α est inférieur à 180° dans la position de la figure 6.The angle α is not zero in the position of Figure 2 in order to avoid blockage by "knee brace" effect. For the same reason, this angle α is less than 180 ° in the position in Figure 6.

Afin de réduire les déformations de l'ouvrant, on prévoit en outre que, dans la configuration de la figure 2, le bras du levier 105 par rapport à l'axe 109 est sensiblement égal au bras de levier du ressort à gaz 110 par rapport à cet axe. Ceci permet de compenser l'effort développé par le ressort à gaz 110.In order to reduce the deformations of the opening, further that, in the configuration of Figure 2, the arm lever 105 relative to axis 109 is substantially equal to the lever arm of the gas spring 110 relative to this axis. This compensates for the effort developed by the spring to gas 110.

Lorsqu'il convient de soulever le hayon 3, un utilisateur peut exercer sur le panneau 32 un effort F2 tendant à faire pivoter le hayon 3 autour de l'axe X-X'.When it is necessary to lift the tailgate 3, a user can exert on the panel 32 a force F 2 tending to pivot the tailgate 3 about the axis XX '.

Cet effort est, en particulier, transmis au montant 34 et a pour effet de déplacer le support 103 et le levier 105 de faire pivoter le levier 108 autour de l'axe 109, comme représenté par la flèche F3 à la figure 4. Ce pivotement induit un déplacement des extrémités 105b et 108b des leviers 105 et 108 selon un arc de cercle C alors que la rotule 108c et l'extrémité 110c du ressort 110 sont déplacées selon un arc de cercle C', concentrique à l'arc C et centré sur l'axe 109.This force is, in particular, transmitted to the upright 34 and has the effect of displacing the support 103 and the lever 105 to pivot the lever 108 around the axis 109, as shown by the arrow F 3 in FIG. 4. This pivoting induces a displacement of the ends 105 b and 108 b of the levers 105 and 108 in an arc of a circle C while the ball joint 108 c and the end 110 c of the spring 110 are displaced in an arc of a circle C ', concentric with the arc C and centered on the axis 109.

Ce mouvement de l'extrémité 108b est dû à l'effort transmis par l'extrémité 105b du levier 105.This movement of the end 108 b is due to the force transmitted by the end 105 b of the lever 105.

Le déplacement du levier 108 selon la flèche F3 a pour effet de déplacer le ressort à gaz 110 de la position de la figure 2 à celle de la figure 4 où la direction de l'effort F1 a évolué par rapport à la configuration de la figure 2, cette direction étant adaptée pour exercer sur le hayon 3 une assistance efficace au mouvement d'ouverture.The displacement of the lever 108 according to the arrow F 3 has the effect of displacing the gas spring 110 from the position of FIG. 2 to that of FIG. 4 where the direction of the force F 1 has changed with respect to the configuration of Figure 2, this direction being adapted to exert on the tailgate 3 effective assistance to the opening movement.

La poursuite du mouvement d'ouverture induit la poursuite du pivotement du levier 108 autour de l'axe 109, l'axe 107 et les extrémités 105b et 108b continuant à se déplacer sur l'arc C alors que la rotule 108c et l'extrémité 110c continuent à se déplacer sur l'arc C'.The continuation of the opening movement induces the continuation of the pivoting of the lever 108 around the axis 109, the axis 107 and the ends 105 b and 108 b continuing to move on the arc C while the ball joint 108 c and the end 110 c continue to move on the arc C '.

La direction de l'effort F1 évolue en conséquence et demeure adaptée à la position du hayon 3.The direction of the force F 1 changes accordingly and remains adapted to the position of the tailgate 3.

Ainsi, la structure articulée formée des leviers 105 et 108 permet d'orienter le ressort à gaz 110 en fonction du degré d'ouverture du hayon 3, de telle sorte que l'effort F1 exercé par ce ressort est en permanence correctement orienté par rapport au hayon 3 et à la caisse 1.Thus, the articulated structure formed of the levers 105 and 108 makes it possible to orient the gas spring 110 as a function of the degree of opening of the tailgate 3, so that the force F 1 exerted by this spring is permanently correctly oriented by compared to tailgate 3 and body 1.

On note que, en position fermée du hayon 3, le dispositif de l'invention est particulièrement compact et peut être logé dans une gouttière formée par le montant 11 et/ou le montant 34 alors que le premier levier 105 compense efficacement l'effort F1 dû au ressort à gaz, ce qui permet de réduire les contraintes exercées sur la structure du hayon 3.It is noted that, in the closed position of the tailgate 3, the device of the invention is particularly compact and can be housed in a gutter formed by the upright 11 and / or the upright 34 while the first lever 105 effectively compensates for the force F 1 due to the gas spring, which makes it possible to reduce the stresses exerted on the structure of the tailgate 3.

L'invention permet en particulier d'utiliser un ressort à gaz alors que le hayon 3 comprend une vitre 35 qui est largement débordante vers les ailes arrières du véhicule, au point qu'elle est disposée dans une zone où sont habituellement articulés les ressort à gaz des dispositifs connus.The invention makes it possible in particular to use a spring gas while the tailgate 3 includes a window 35 which is largely projecting towards the rear fenders of the vehicle, point that it is arranged in an area where are usually articulated gas springs of known devices.

On peut prévoir que la géométrie des éléments 101 à 110 et l'intensité de l'effort F1 sont telles que, à partir d'un certain degré d'ouverture, par exemple la position représentée aux figures 3 et 4, l'assistance générée par le dispositif de l'invention permet une ouverture automatique du hayon 3.It can be provided that the geometry of the elements 101 to 110 and the intensity of the force F 1 are such that, from a certain degree of opening, for example the position shown in FIGS. 3 and 4, the assistance generated by the device of the invention allows automatic opening of the tailgate 3.

Le dispositif de l'invention permet également d'assister le mouvement de fermeture du hayon en évitant que celui-ci ne heurte violemment la caisse.The device of the invention also makes it possible to assist the closing movement of the tailgate while preventing it from violently hits the cash register.

L'invention a été représentée avec un hayon arrière de véhicule. Elle est bien entendu applicable à d'autres types d'ouvrants, par exemple à une porte de coffre, à un volet arrière ou à un capot moteur. The invention has been shown with a tailgate of vehicle. It is of course applicable to other types opening, for example a trunk door, a shutter rear or a bonnet.

Les éléments 101 à 110 constitutifs du dispositif 10 peuvent être réalisés en acier, en aluminium, en matériau composite ou en toute autre matière, en fonction des exigences retenues pour le véhicule et du poids de l'ouvrant.The elements 101 to 110 constituting the device 10 can be made of steel, aluminum, material composite or any other material, depending on requirements retained for the vehicle and the weight of the door.

L'invention a été représentée avec un activateur formé par un ressort à gaz. D'autres types d'activateurs peuvent être utilisés, tels qu'un vérin électrique, hydraulique ou pneumatique ou un dispositif mécanique à élasticité progressive du genre ressort hélicoïdal.The invention has been shown with a trained activator by a gas spring. Other types of activators can be used, such as an electric, hydraulic or pneumatic or mechanical device with progressive elasticity of the helical spring type.

L'invention a été représentée lors de son utilisation pour un hayon. Elle est applicable avec tout type d'ouvrant tel que capots moteurs, portes ou portes de coffre arrière.The invention has been shown during its use for a tailgate. It is applicable with any type of opening such as engine hoods, doors or rear trunk doors.

Claims (10)

Dispositif d'assistance à la manoeuvre d'un ouvrant articulé sur la caisse d'un véhicule automobile autour d'un axe défini par des charnières, ledit dispositif comprenant un activateur (110), un premier levier (105) articulé, par une première extrémité (105a), sur un support (103) et par une seconde extrémité (105b), sur un second levier (108), lui-même articulé (en 108a) sur une platine (101), ledit activateur (110) étant articulé sur ledit support (103) et sur ledit second levier (108), alors que ledit support (103) et ladite platine (101) sont respectivement solidaires dudit ouvrant (3) et de la caisse (1) dudit véhicule (V) ou réciproquement caractérisé en ce qu'en position fermée (figure 2) dudit ouvrant (3), ledit premier levier (105) est articulé sur ledit second levier (108) dans une zone (108b) globalement alignée avec ledit activateur (110).Device for assisting in the operation of an opening leaf articulated on the body of a motor vehicle about an axis defined by hinges, said device comprising an activator (110), a first lever (105) articulated, by a first end (105 a ), on a support (103) and by a second end (105 b ), on a second lever (108), itself articulated (at 108 a ) on a plate (101), said activator (110 ) being articulated on said support (103) and on said second lever (108), while said support (103) and said plate (101) are respectively integral with said opening (3) and the body (1) of said vehicle (V ) or conversely characterized in that in the closed position (FIG. 2) of said opening (3), said first lever (105) is articulated on said second lever (108) in a zone (108 b ) generally aligned with said activator (110 ). Dispositif selon la revendication 1, caractérisé en ce qu'en position fermée (figure 2) dudit ouvrant (3), ledit premier levier (105) travaille principalement en extension, en réaction à un effort (F1) exercé par ledit activateur (110) sur ledit second levier (108).Device according to claim 1, characterized in that in the closed position (FIG. 2) of said opening (3), said first lever (105) works mainly in extension, in reaction to a force (F 1 ) exerted by said activator (110 ) on said second lever (108). Dispositif selon la revendication 1, caractérisé en ce que ledit second levier (108) définit trois zones (108a, 108b, 108d) d'articulation non alignées (T) respectivement prévues pour son articulation avec ladite platine (101), ledit activateur (110) et ledit premier levier (105).Device according to claim 1, characterized in that said second lever (108) defines three zones (108 a , 108 b , 108 d ) of non-aligned articulation (T) respectively provided for its articulation with said plate (101), said activator (110) and said first lever (105). Dispositif selon l'une des revendications précédentes, caractérisé en ce que ledit second levier (108) est articulé, à une première extrémité (108a), sur ladite platine (101) et, à sa seconde extrémité opposée (108b), audit premier levier (105), ledit activateur (110) étant articulé sur ledit second levier dans une zone intermédiaire (108d).Device according to one of the preceding claims, characterized in that said second lever (108) is articulated, at a first end (108 a ), on said plate (101) and, at its second opposite end (108 b ), at said first lever (105), said activator (110) being articulated on said second lever in an intermediate zone (108 d ). Dispositif selon l'une des revendications précédentes, caractérisé en ce que ledit premier levier (105) est un levier coudé.Device according to one of the preceding claims, characterized in that said first lever (105) is an angled lever. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la direction dudit activateur (110) est apte à évoluer, au cours d'un mouvement d'ouverture (F2) ou de fermeture dudit ouvrant, en fonction de la position dudit premier levier (105) autour de son axe (106) d'articulation sur ledit support (103).Device according to one of the preceding claims, characterized in that the direction of said activator (110) is capable of changing, during an opening movement (F 2 ) or closing of said opening, as a function of the position of said first lever (105) around its axis (106) of articulation on said support (103). Dispositif selon l'une des revendications précédentes, caractérisé en ce que ledit second levier (108) est un levier coudé articulé, par ses extrémités (108a, 108b), respectivement à ladite platine (101) et audit premier levier (105).Device according to one of the preceding claims, characterized in that said second lever (108) is a bent lever articulated, by its ends (108 a , 108 b ), respectively to said plate (101) and to said first lever (105) . Dispositif selon l'une des revendications précédentes, caractérisé en ce que ledit activateur est un ressort à gaz (110).Device according to one of the preceding claims, characterized in that said activator is a gas spring (110). Utilisation d'un dispositif selon l'une des revendications précédentes pour l'assistance à la manoeuvre d'un ouvrant (3) sur un véhicule automobile, ledit ouvrant comprenant un montant latéral (34) formant une section inclinée (34a), à partir d'une partie supérieure (31) dudit ouvrant, en direction d'une partie (2) dudit véhicule lorsque ledit ouvrant est fermé.Use of a device according to one of the preceding claims for assistance in the operation of an opening (3) on a motor vehicle, said opening comprising a lateral upright (34) forming an inclined section (34 a ), to from an upper part (31) of said opening, towards a part (2) of said vehicle when said opening is closed. Véhicule automobile équipé d'un ouvrant, caractérisé en ce qu'il comprend un dispositif (101-110) selon l'une des revendications 1 à 8.Motor vehicle equipped with an opening, characterized in that it comprises a device (101-110) according to one of claims 1 to 8.
EP01420195A 2000-09-14 2001-09-13 Operating device for opening a vehicle element, its use and a vehicle provided with such a device Withdrawn EP1188892A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0011741A FR2813915B1 (en) 2000-09-14 2000-09-14 DEVICE FOR ASSISTING THE OPERATION OF A VEHICLE OPENING ELEMENT, ITS USE AND A MOTOR VEHICLE EQUIPPED WITH SUCH A DEVICE
FR0011741 2000-09-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2578426A1 (en) * 2011-10-04 2013-04-10 Nissan Motor Manufacturing (UK) Ltd. Vehicle with openable closure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4415194A (en) * 1981-11-20 1983-11-15 General Motors Corporation Vehicle hatchback closure
US6041548A (en) * 1998-06-25 2000-03-28 A. L. Hanson Mfg. Co. Support arm

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4415194A (en) * 1981-11-20 1983-11-15 General Motors Corporation Vehicle hatchback closure
US6041548A (en) * 1998-06-25 2000-03-28 A. L. Hanson Mfg. Co. Support arm

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2578426A1 (en) * 2011-10-04 2013-04-10 Nissan Motor Manufacturing (UK) Ltd. Vehicle with openable closure

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FR2813915B1 (en) 2003-06-20

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