EP0219391B1 - Counter balance device for car rear hatch - Google Patents

Counter balance device for car rear hatch Download PDF

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Publication number
EP0219391B1
EP0219391B1 EP86402023A EP86402023A EP0219391B1 EP 0219391 B1 EP0219391 B1 EP 0219391B1 EP 86402023 A EP86402023 A EP 86402023A EP 86402023 A EP86402023 A EP 86402023A EP 0219391 B1 EP0219391 B1 EP 0219391B1
Authority
EP
European Patent Office
Prior art keywords
lever
hatch
flap
articulated
shutter
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.)
Expired
Application number
EP86402023A
Other languages
German (de)
French (fr)
Other versions
EP0219391A1 (en
Inventor
Claude Taunay
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.)
Automobiles Peugeot SA
Automobiles Citroen SA
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen 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 Automobiles Peugeot SA, Automobiles Citroen SA filed Critical Automobiles Peugeot SA
Publication of EP0219391A1 publication Critical patent/EP0219391A1/en
Application granted granted Critical
Publication of EP0219391B1 publication Critical patent/EP0219391B1/en
Expired 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
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/06—Hinges with pins with two or more pins
    • 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
    • E05Y2900/531—Doors
    • 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 ensuring the balancing of an opening flap disposed at the rear of a motor vehicle on the structure of which it is articulated, in its upper part, around a horizontal axis.
  • the known devices either are too bulky, or else do not make it possible to exert sufficient torque over a fairly large opening angle of the shutter.
  • the invention aims to provide a device which, while remaining simple, has better efficiency than known devices, and this regardless of the configuration of the shutter.
  • the invention therefore relates to a balancing device for a rear shutter of a motor vehicle, said shutter being articulated, at its upper part, to the structure of the vehicle around a horizontal axis and comprising at least one balancing member such as an air spring articulated on the one hand to the structure, on the other hand to the flap (device of conventional type known, for example, from GB-A-2 005 199).
  • This device is characterized in that the pneumatic spring is articulated on the flap or the structure by means of a first lever on which is articulated a first end of a rod whose second end is articulated on a second lever, in an intermediate point between an articulation of said second lever on the flap or the structure and a roller cooperating in the vicinity of the closed position of the flap, with the structure (or the flap).
  • a rear flap 1 of a motor vehicle articulated at its upper part on the structure 2 around a horizontal transverse axis 3. This flap 1 is held in the closed position by a lock 4.
  • a balancing member constituted, for example, by an air spring 5, facilitates the opening of the flap 1 and ensures that it is kept in the open position.
  • this articulation 8 is carried by a first lever 9 articulated in 19 on a plate 10 fixed on the lateral edge of the frame 11 of the shutter 1.
  • a link 12 is connected by an articulation 13 to the first lever 9 and by an articulation 14 to a second lever 15 itself connected by an articulation 16 to the plate 10.
  • the articulation 14 of the link 12 is located, on the second lever 15, at an intermediate point between the articulation 16 and a roller 17 mounted at the end of the lever 15 opposite the articulation 16 of the latter on the plate 10.
  • the roller 17, in the closed position of the flap 1, cooperates with the bottom of the gutter 6 on which it rests.
  • a protective plate 18, for example made of flexible plastic, is interposed between the roller 17 and the bottom of the gutter 6.
  • curve A represents, as a function of its opening angle "a", the effective torque on the shutter 1, resulting from the difference between the torque due to the assistance and the torque due to its weight, if the hinge 8 of spring 5 was carried directly by the flap.
  • the torque C therefore the effort required of the user, to take off the flap 1 is relatively large, the assistance torque becoming predominant, to ensure the automation, only in the second half of the opening (from angle a1).
  • Curve B represents, under the same conditions, the effective torque on the shutter 1 thanks to the device according to the invention.
  • the assistance effect is then preponderant from the start, which ensures an automatic lifting of the shutter to the angle a2. It is then necessary to exert a reduced torque, equal to the maximum at C ', to find the automation from the angle a1.
  • the device described could possibly be arranged at the other end of the spring 5, the plate 10 then being fixed on the structure 2 and the roller 17 cooperating with the flap 1.
  • the action for lifting the flap due to the deployment of the second lever 15 would be more limited.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Superstructure Of Vehicle (AREA)
  • Air-Flow Control Members (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Centrifugal Separators (AREA)

Description

L'invention se rapporte à un dispositif assurant l'équilibrage d'un volet ouvrant disposé à l'arrière d'un véhicule automobile sur la structure duquel il est articulé, à sa partie haute, autour d'un axe horizontal.The invention relates to a device ensuring the balancing of an opening flap disposed at the rear of a motor vehicle on the structure of which it is articulated, in its upper part, around a horizontal axis.

Il est connu de réaliser cet équilibrage à l'aide d'un ou deux organes tels que des ressorts pneumatiques articulés d'une part sur la structure et d'autre part sur le volet. De préférence, ces organes sont disposés sur les côtés du volet, dans des gouttières latérales. Ces organes ont pour rôle d'exercer, sur le volet, un couple qui s'oppose au couple dû à son poids, ce qui facilite son ouverture et assure son maintien en position ouverte.It is known to carry out this balancing using one or two members such as pneumatic springs articulated on the one hand on the structure and on the other hand on the flap. Preferably, these members are arranged on the sides of the flap, in lateral gutters. These organs have the role of exerting, on the shutter, a couple which opposes the couple due to its weight, which facilitates its opening and ensures that it is kept in the open position.

Malheureusement, la disposition de ces ressorts dans les gouttières latérales fait que, en partant de la position volet fermé, leur ligne d'action passe très près de l'axe d'articulation du volet, si bien que le couple exercé est très notoirement inférieur au couple opposé dû au poids du volet, de sorte que l'utilisateur est obligé d'exercer un effort manuel non négligeable en début d'ouverture.Unfortunately, the arrangement of these springs in the lateral gutters means that, starting from the closed flap position, their line of action passes very close to the axis of articulation of the flap, so that the torque exerted is very notoriously lower to the opposite torque due to the weight of the shutter, so that the user is forced to exert a considerable manual effort at the start of opening.

C'est pourquoi on a déjà proposé de monter ces organes d'équilibrage par l'intermédiaire de leviers et de cames, de sorte que l'effort qu'ils exercent puisse être mieux utilisé pour aider le début d'ouverture du volet.This is why it has already been proposed to mount these balancing members by means of levers and cams, so that the force which they exert can be better used to assist the start of opening of the shutter.

Cependant, pour certaines configurations du volet (dimensions, poids, inclinaison en position fermée), les dispositifs connus, ou bien sont trop encombrants, ou bien ne permettent pas d'exercer un couple suffisant sur un angle d'ouverture assez grand du volet.However, for certain configurations of the shutter (dimensions, weight, inclination in the closed position), the known devices either are too bulky, or else do not make it possible to exert sufficient torque over a fairly large opening angle of the shutter.

L'invention a pour but de fournir un dispositif qui, tout en restant simple, présente une meilleure efficacité que les dispositifs connus, et ceci quelle que soit la configuration du volet.The invention aims to provide a device which, while remaining simple, has better efficiency than known devices, and this regardless of the configuration of the shutter.

L'invention concerne donc un dispositif d'équilibrage pour volet arrière de véhicule automobile, ledit volet étant articulé, à sa partie haute, à la structure du véhicule autour d'un axe horizontal et comprenant au moins un organe d'équilibrage tel qu'un ressort pneumatique articulé d'une part à la structure, d'autre part au volet (Dispositif de type classique connu, pour exemple, de GB-A-2 005 199).The invention therefore relates to a balancing device for a rear shutter of a motor vehicle, said shutter being articulated, at its upper part, to the structure of the vehicle around a horizontal axis and comprising at least one balancing member such as an air spring articulated on the one hand to the structure, on the other hand to the flap (device of conventional type known, for example, from GB-A-2 005 199).

Ce dispositif est caractérisé en ce que le ressort pneumatique est articulé sur le volet ou la structure par l'intermédiaire d'un premier levier sur lequel est articulée une première extrémité d'une biellette dont la seconde extrémité est articulée sur un deuxième levier, en un point intermédiaire entre une articulation dudit deuxième levier sur le volet ou la structure et un galet coopérant au voisinage de la position de fermeture du volet, avec la structure (ou le volet).This device is characterized in that the pneumatic spring is articulated on the flap or the structure by means of a first lever on which is articulated a first end of a rod whose second end is articulated on a second lever, in an intermediate point between an articulation of said second lever on the flap or the structure and a roller cooperating in the vicinity of the closed position of the flap, with the structure (or the flap).

Un exemple de réalisation non limitatif de l'invention fait l'objet de la description qui suit, en référence aux dessins joints dans lesquels:

  • - La Fig. 1 est une vue en coupe verticale schématique, parallèle à l'axe du véhicule, d'un volet arrière équipé d'un dispositif d'équilibrage selon l'invention vu en élévation;
  • - La Fig. 2 est une vue partielle, à plus grande échelle, du dispositif représenté à la Fig. 1, le volet étant fermé;
  • - La Fig. 3 est une vue analogue à la Fig. 2, le volet étant partiellement ouvert;
  • - la Fig 4 est une vue en coupe suivant la ligne IV - IV de la Fig. 2;
  • - la Fig. 5 est un diagramme illustrant le couple auquel est soumis le volet en fonction de son angle d'ouverture.
A nonlimiting exemplary embodiment of the invention is the subject of the description which follows, with reference to the accompanying drawings in which:
  • - Fig. 1 is a schematic vertical sectional view, parallel to the axis of the vehicle, of a rear flap fitted with a balancing device according to the invention seen in elevation;
  • - Fig. 2 is a partial view, on a larger scale, of the device shown in FIG. 1, the shutter being closed;
  • - Fig. 3 is a view similar to FIG. 2, the flap being partially open;
  • - Fig 4 is a sectional view along line IV - IV of Fig. 2;
  • - Fig. 5 is a diagram illustrating the torque to which the shutter is subjected as a function of its opening angle.

On voit, sur la Fig. 1, un volet arrière 1 de véhicule automobile, articulé à sa partie haute sur la structure 2 autour d'un axe transversal horizontal 3. Ce volet 1 est maintenu en position fermée par une serrure 4.We see in Fig. 1, a rear flap 1 of a motor vehicle, articulated at its upper part on the structure 2 around a horizontal transverse axis 3. This flap 1 is held in the closed position by a lock 4.

Sur au moins un côté du volet 1, un organe d'équilibrage constitué, par exemple, par un ressort pneumatique 5, facilite l'ouverture du volet 1 et assure son maintien en position ouverte. Ce ressort 5, disposé dans une gouttière latérale 6 (Fig. 4) , est relié, par une première extrémité à la structure 2 au moyen d'une articulation 7 et, par son autre extrémité, au volet 1 au moyen d'une articulation 8.On at least one side of the flap 1, a balancing member constituted, for example, by an air spring 5, facilitates the opening of the flap 1 and ensures that it is kept in the open position. This spring 5, disposed in a lateral gutter 6 (Fig. 4), is connected, by a first end to the structure 2 by means of a joint 7 and, by its other end, to the flap 1 by means of a joint 8.

Comme on le voit mieux sur la Fig. 2, cette articulation 8 est portée par un premier levier 9 articulé en 19 sur une platine 10 fixée sur le bord latéral de l'encadrement 11 du volet 1. Une biellette 12 est reliée par une articulation 13 au premier levier 9 et par une articulation 14 à un second levier 15 lui-même relié par une articulation 16 à la platine 10.As best seen in Fig. 2, this articulation 8 is carried by a first lever 9 articulated in 19 on a plate 10 fixed on the lateral edge of the frame 11 of the shutter 1. A link 12 is connected by an articulation 13 to the first lever 9 and by an articulation 14 to a second lever 15 itself connected by an articulation 16 to the plate 10.

L'articulation 14 de la biellette 12 est située, sur le second levier 15, en un point intermédiaire entre l'articulation 16 et un galet 17 monté à l'extrémité du levier 15 opposée à l'articulation 16 de ce dernier sur la platine 10. Le galet 17, en position de fermeture du volet 1, coopère avec le fond de la gouttière 6 sur laquelle il s'appuie. De préférence, une plaquette de protection 18, par exemple en plastique souple, est interposée entre le galet 17 et tefond de la gouttière 6.The articulation 14 of the link 12 is located, on the second lever 15, at an intermediate point between the articulation 16 and a roller 17 mounted at the end of the lever 15 opposite the articulation 16 of the latter on the plate 10. The roller 17, in the closed position of the flap 1, cooperates with the bottom of the gutter 6 on which it rests. Preferably, a protective plate 18, for example made of flexible plastic, is interposed between the roller 17 and the bottom of the gutter 6.

Le fonctionnement du dispositif décrit ci- dessus est très simple:The operation of the device described above is very simple:

La force exercée par le ressort pneumatique 5 crée, sur le premier levier 9, un couple dirigé dans le sens de la flèche F. Ce couple provoque un effort sur la biellette 12 en direction du second levier 15 qui, prenant appui sur la structure 2 par son galet 17, tend à relever le volet 1. Ce mouvement de relevage est effectif dès la libération de la serrure 4. Lorsque le second levier 15 est complètement déployé (Fig. 3), le bras de levier de la ligne d'action du ressort 5 par rapport à l'articulation 3 du volet 1 est alors suffisamment grand pour que le ressort 5 exerce, sur le volet 1, un couple de relevage notable.The force exerted by the air spring 5 creates, on the first lever 9, a torque directed in the direction of the arrow F. This torque causes a force on the link 12 in the direction of the second lever 15 which, bearing on the structure 2 by its roller 17, tends to raise the flap 1. This lifting movement is effective upon release of the lock 4. When the second lever 15 is fully deployed (Fig. 3), the lever arm of the line of action of the spring 5 relative to the articulation 3 of the shutter 1 is then large enough for the spring 5 to exert, on the shutter 1, a significant lifting torque.

Cependant, de préférence, on s'arrange pour qu'un effort manuel réduit soit nécessaire après une faible course d'ouverture du volet 1, avant de poursuivre l'automatisme, ce qui évite l'inconvénient d'une ouverture incontrôlée qui pourrait être trop brutale.However, preferably, it is arranged that a reduced manual effort is necessary after a short opening stroke of the flap 1, before continuing the automation, which avoids the disadvantage of an uncontrolled opening which could be too brutal.

Sur le diagramme de la Fig. 5, la courbe A représente, en fonction de son angle d'ouverture "a", le couple effectif sur le volet 1, résultant de la différence entre le couple dû à l'assistance et le couple dû à son poids, si l'articulation 8 du ressort 5 était portée directement par le volet. On voit que le couple C, donc l'effort demandé à l'utilisateur, pour décoller le volet 1 est relativement important, le couple d'assistance ne devenant prépondérant, pour assurer l'automatisme, que dans la deuxième moitié de l'ouverture (à partir de l'angle a1).In the diagram of Fig. 5, curve A represents, as a function of its opening angle "a", the effective torque on the shutter 1, resulting from the difference between the torque due to the assistance and the torque due to its weight, if the hinge 8 of spring 5 was carried directly by the flap. We see that the torque C, therefore the effort required of the user, to take off the flap 1 is relatively large, the assistance torque becoming predominant, to ensure the automation, only in the second half of the opening (from angle a1).

La courbe B représente, dans les mêmes conditions, le couple effectif sur le volet 1 grâce au dispositif selon l'invention. L'effet d'assistance est alors prépondérant dès le début, ce qui assure un soulèvement automatique du volet jusqu'à l'angle a2. Il faut alors exercer un couple réduit, égal au maximum à C', pour retrouver l'automatisme à partir de l'angle a1.Curve B represents, under the same conditions, the effective torque on the shutter 1 thanks to the device according to the invention. The assistance effect is then preponderant from the start, which ensures an automatic lifting of the shutter to the angle a2. It is then necessary to exert a reduced torque, equal to the maximum at C ', to find the automation from the angle a1.

Il convient de remarquer que le dispositif décrit pourrait éventuellement être disposé à l'autre extrémité du ressort 5, la platine 10 étant alors fixée sur la structure 2 et le galet 17 coopérant avec le volet 1. Toutefois, dans cette solution, l'action de relevage du volet due au déploiement du second levier 15 serait angulairement plus limitée.It should be noted that the device described could possibly be arranged at the other end of the spring 5, the plate 10 then being fixed on the structure 2 and the roller 17 cooperating with the flap 1. However, in this solution, the action for lifting the flap due to the deployment of the second lever 15 would be more limited.

Claims (3)

1. A counter-balancing device for the rear hatch (1) of a motor vehicle, said hatch being articulated at its top to the vehicle structure (2) round a horizontal pin (3) and comprising at least one counter-balancing member such as a pneumatic spring (5) articulated, on the one hand, to the structure (2) and, on the other hand, to the hatch (1), characterised in that the pneumatic spring (5) is articulated on to the hatch (1) or on to the structure (2) by means of a first lever (9) onto which there is articulated a first end of a rocker bar (12), the second end of which is articulated on to a second lever (15) at an intermediate point between an articulation (16) of said second lever (15) on to the hatch (1) or the structure and a roller (17) cooperating, near to the closed position of the hatch (1), with the structure (2) or with the hatch (1).
2. A device according to claim 1, characterised in that the roller (17) is mounted at the end of the second lever (15) remote from the articulation (16) of said second lever (15) on to the hatch (1) or on to the structure (2).
3. A device according to one of claims 1 and 2, characterised in that the first lever (9) and the second lever (15) are articulated on to a plate (10) fixed to the hatch (1) or to the structure (2).
EP86402023A 1985-09-23 1986-09-16 Counter balance device for car rear hatch Expired EP0219391B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8514075A FR2587656B1 (en) 1985-09-23 1985-09-23 BALANCING DEVICE FOR REAR SHUTTER OF MOTOR VEHICLE
FR8514075 1985-09-23

Publications (2)

Publication Number Publication Date
EP0219391A1 EP0219391A1 (en) 1987-04-22
EP0219391B1 true EP0219391B1 (en) 1988-11-23

Family

ID=9323155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86402023A Expired EP0219391B1 (en) 1985-09-23 1986-09-16 Counter balance device for car rear hatch

Country Status (5)

Country Link
US (1) US4679841A (en)
EP (1) EP0219391B1 (en)
JP (1) JPS6271722A (en)
DE (1) DE3661248D1 (en)
FR (1) FR2587656B1 (en)

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Publication number Priority date Publication date Assignee Title
EP2042673A2 (en) 2007-09-28 2009-04-01 Volkswagen Aktiengesellschaft Vehicle compartment lid with lever mechanism and force generating accessory
DE102007046691A1 (en) 2007-09-28 2009-04-09 Volkswagen Ag Motor vehicle cover with lever mechanism and force-generating aid
DE102008012439A1 (en) 2008-02-29 2009-09-03 Audi Ag Lever supporting mechanism for vehicle covers, doors and closure devices pivotally supported on vehicle body, has supporting unit that produces force which opens closure device, where lifting mechanism is designed as resilient element

Also Published As

Publication number Publication date
FR2587656A1 (en) 1987-03-27
DE3661248D1 (en) 1988-12-29
JPS6271722A (en) 1987-04-02
US4679841A (en) 1987-07-14
FR2587656B1 (en) 1988-01-08
EP0219391A1 (en) 1987-04-22

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