EP0579518B1 - Electric vehicle window actuator employing a cable sliding along a guide rail - Google Patents
Electric vehicle window actuator employing a cable sliding along a guide rail Download PDFInfo
- Publication number
- EP0579518B1 EP0579518B1 EP93401391A EP93401391A EP0579518B1 EP 0579518 B1 EP0579518 B1 EP 0579518B1 EP 93401391 A EP93401391 A EP 93401391A EP 93401391 A EP93401391 A EP 93401391A EP 0579518 B1 EP0579518 B1 EP 0579518B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rail
- window
- force
- winding mechanism
- cable
- 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 - Lifetime
Links
- 239000003302 ferromagnetic material Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims 8
- 239000011521 glass Substances 0.000 description 10
- 230000036316 preload Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
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- 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
- E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
- E05F11/38—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement
- E05F11/48—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by cords or chains or other flexible elongated pulling elements, e.g. tapes
- E05F11/481—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by cords or chains or other flexible elongated pulling elements, e.g. tapes for vehicle windows
- E05F11/483—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by cords or chains or other flexible elongated pulling elements, e.g. tapes for vehicle windows by 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
- E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
- E05F11/38—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement
- E05F11/48—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by cords or chains or other flexible elongated pulling elements, e.g. tapes
- E05F11/481—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by cords or chains or other flexible elongated pulling elements, e.g. tapes for vehicle windows
- E05F11/483—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by cords or chains or other flexible elongated pulling elements, e.g. tapes for vehicle windows by cables
- E05F11/486—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by cords or chains or other flexible elongated pulling elements, e.g. tapes for vehicle windows by cables with one cable connection to the window glass
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- 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
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
- E05F15/41—Detection by monitoring transmitted force or torque; Safety couplings with activation dependent upon torque or force, e.g. slip couplings
-
- 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
- E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
- E05F15/689—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings specially adapted for vehicle windows
-
- 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
- E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
- E05F11/38—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement
- E05F11/42—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by rack bars and toothed wheels or other push-pull mechanisms
- E05F11/423—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by rack bars and toothed wheels or other push-pull mechanisms for vehicle windows
- E05F11/426—Flexible rack-and-pinion arrangements
-
- 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
- E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
- E05Y2400/10—Electronic control
- E05Y2400/52—Safety arrangements associated with the wing motor
- E05Y2400/53—Wing impact prevention or reduction
- E05Y2400/54—Obstruction or resistance detection
- E05Y2400/55—Obstruction or resistance detection by using load sensors
- E05Y2400/552—Switches
-
- 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
- E05Y2900/55—Windows
Definitions
- the present invention relates to an electric vehicle window regulator, of the type with cable for driving the window by a motor, this cable being slidably mounted along a guide rail (EP-A 0 107 531).
- window regulators with rack cable window regulators with twisted cable (Bowden cable), and window regulators with arms and toothed sector.
- the invention relates to the first two types of window regulator.
- the system When an obstacle is on the closing path of the window, the system must recognize the presence of an abnormal phenomenon and, if the force on the window exceeds a limit value, the window must not continue its trajectory, but s '' stop and at least release the effort.
- This release of the force can be obtained either by releasing the glass which descends under a weak force or under the effect of its own weight if the friction in the lateral joint allows it, or by reversing the movement of the glass which is then forced to descend.
- the invention aims to provide a cable window regulator of the type mentioned above, provided with an electromechanical safety device which is simple to manufacture and therefore inexpensive.
- the rail is mounted movable relative to a door panel so as to be able to be driven in vertical translation downwards by the cable in the event of detection of a force on the window exceeding a predetermined value, opposing the travel of the window, and this window lifter comprises means for holding the rail in a determined position, as long as the effort exerted on the glass remains below said predetermined value, and electromechanical means for detecting the force exerted on the glass and a displacement of the rail in translation when this force exceeds said predetermined value, these electromechanical means then making it possible to reverse the direction of rotation of the motor.
- said holding means comprise a magnet fixed to the door panel and a tab made of ferromagnetic material secured to the rail, positioned so as to be kept glued to the magnet as long as the force exerted on the window remains below said predetermined value
- said electromechanical means comprise a switch cooperating with the rail so as to be maintained in a first state as long as the force exerted on the window is less than said predetermined value, and to pass through a second state when this force exceeds said value and the rail is then moved.
- the weighing of the force on the glass is carried out by a movable rail, the force on the glass being found almost completely on the carriage carrying the glass and which is fixed to the cable.
- This carriage in fact transmits the force to the rail, either by means of pulleys and cable fixing elements when the latter is twisted, or by means of the sheath enveloping the cable when the latter is of the rack type.
- the guide rail is directly fixed to the interior panel of the door, it is mounted sliding in vertical translation relative to the door panel according to the invention, and therefore makes it possible to obtain an image of the force on the glass.
- Figure 1 is a simplified elevational view of a first embodiment of the safety device according to the invention, applied to an electric window regulator with Bowden cable.
- Figure 2 is a partial side elevational view of the lower part of the device of Fig.1 in a plane perpendicular thereto.
- Figures 3 and 4 are elevational views similar to Fig.1 illustrating two other embodiments of safety according to the invention, applied to window regulators with twisted cable.
- Figure 5 is a simplified elevational view of a rack cable window regulator equipped with a fourth embodiment of the safety device according to the invention.
- the window lifter 1 shown in Fig.1 comprises a geared motor 2 for driving a twisted cable or Bowden cable 3, passing over two pulleys 4, 5 for returning.
- the strand of the cable 3 located between these two pulleys extends along a guide rail 6, mounted movable in vertical translation relative to a door panel 7 partially shown.
- the cable 3 carries a carriage 8 on which is mounted a window, not shown.
- To the door panel 7 is fixed, between two armature plates 9, a magnet 11, these elements being carried for example by a tab 12 projecting from the panel 7.
- the rail 6 is provided with a tab 13 made of ferromagnetic material, extending transversely to the rail 6 below the magnet 11 and positioned on the rail so as to be kept glued to the magnet 9 as long as the force exerted on the window remains below a predetermined value, in this case the force d attraction of the magnet 11 on the lug 13.
- the safety device comprises electromechanical means comprising an electrical switch 14, carried by the panel 7 and the movable contact of which can cooperate with a transverse tab 15 of the rail 6.
- the switch 14 can be maintained in a first state as long as the force exerted on the glass remains less than the force of attraction of the magnet 11 on the tab 13. It can pass into the second state when this force exceeds said force of attraction and that the rail 6 is then moved down in vertical translation, causing the spacing of the tab 13 of the magnet 11 and of the switch 14.
- the switch 14 is part of an appropriate electrical circuit, not shown as known per se, and which therefore does not require a description. This circuit reverses the direction of rotation of the motor of the gear motor 2 to lower the window and release the obstacle when the switch 14 goes into its second state.
- the starting position is the upper position, shown in solid lines in Fig.1, in which the switch 14 is actuated and the lug 13 of the rail 6 is attracted by the magnet 11. If the force on the window exceeds the limit set by the force of attraction of the magnet 9 on the tab 11, by interposing an obstacle in the path of the window, the rail 6 will descend and the switch 14 will no longer be actuated.
- the safety embodiment illustrated in Fig. 3 differs from the previous one only in that the effort is weighed by means of a compression spring 16 placed under the lower end of the rail 6.
- the spring 16 maintains the latter in the high position, as long as the force exerted on the glass, and transmitted to the rail 6 by the carriage 8 and the cable 3, remains below a predetermined value. This corresponds here to the preload of the spring 16, the lower end of which bears on a fixed point 17 (door panel 7 for example).
- the rail 6 is driven in translation downwards against the return force of the spring 16.
- the tab 15 moves away from the switch 14 which is no longer actuated, and the electrical circuit, of which the switch 14 is a part, automatically reverses the direction of rotation of the motor of the geared motor 2.
- the embodiment of the safety illustrated in Fig.4, also applied to a window regulator of the twisted cable type 3, comprises two elastic elements 18, which can be reduced to a single variant.
- Each of the elastic elements is constituted by a prestressed spring 18, one end of which is articulated around an axis 19 on the door panel (not shown), and the other end 18a is coupled to the movable rail 6.
- This coupling can be made for example as shown by means of a finger 21 projecting under the lower end of the rail 6, and on the surface of which are arranged notches 22 (or a groove), in which engages, removably, the end of each spring 18.
- the two springs 18 can thus take two stable positions, namely a first high position corresponding to the normal position of the rail 6, shown in solid line, and a low position, shown in phantom (18a, 21a), taken by the rail 6 after a force exceeding the preload of the springs 18 has moved the rail 6 downwards. This movement then causes the notches 22 to exit the ends of the springs 18 which were engaged therein, and the corresponding uncoupling of the finger 21 and the rail 6 of the springs 18.
- the switch 14 also changes position and the electrical circuit of which it is a part reverses the movement of the window by reversing the direction of rotation of the motor.
- the switch 14 To return to the starting position, it is necessary to overcome the effort of the springs 18, for example by prolonging the pressing of the button of the electrical control circuit in the lowering position, while the window is in the low position.
- the fourth embodiment of the invention is applied to a window regulator 10 of the rack cable type 23 sliding in a sheath 24, the substantially vertical portion 23a of which extends along the rail 6 guide.
- the sheath 23 and the rail 6 can be moved together in vertical translation relative to the door panel (not shown).
- the rail 6 is mounted to bear at its lower end on a compression spring 25, the end of which rests on a fixed point 17.
- the safety device also includes a switch 26 cooperating with the sheath 23 as shown, or alternatively with the rail 6 , so as to be able to take two successive states: the first corresponds to the high position of the sheath 3 and of the rail 6, represented in solid lines in FIG.
- the switch 26 is part, like the other switches 14, of an electric control circuit known per se, capable of reversing the direction of rotation of the cable drive motor 23 after descent of the sheath 23 and of the rail 6 and change of state of the switch 26.
- the invention is not limited to the embodiments described above and may include various variant embodiments.
- the switch 26 of Fig.5 can be moved to cooperate with the rail 6 as in Fig.1 to 4.
Landscapes
- Window Of Vehicle (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Description
La présente invention a pour objet un lève-vitre électrique de véhicule, du type à câble d'entraînement de la vitre par un moteur, ce cable étant monté coulissant le long d'un rail de guidage (EP-A 0 107 531).The present invention relates to an electric vehicle window regulator, of the type with cable for driving the window by a motor, this cable being slidably mounted along a guide rail (EP-A 0 107 531).
On sait qu'il existe actuellement trois types de lève-vitre sur les véhicules automobiles : les lève-vitre à câble crémaillère, les lève-vitre à câble torsadé (câble Bowden), et les lève-vitre à bras et secteur denté. L'invention concerne les deux premiers types de lève-vitre.It is known that there are currently three types of window regulators on motor vehicles: window regulators with rack cable, window regulators with twisted cable (Bowden cable), and window regulators with arms and toothed sector. The invention relates to the first two types of window regulator.
Quand un obstacle se trouve sur le parcours de fermeture de la vitre, le système doit reconnaître la présence d'un phénomène anormal et, si l'effort sur la vitre dépasse une valeur limite, la vitre ne doit pas continuer sa trajectoire, mais s'arrêter et au moins libérer l'effort. Cette libération de l'effort peut être obtenue soit en libérant la vitre qui descend sous un faible effort ou sous l'effet de son propre poids si le frottement dans le joint latéral le permet, soit en inversant le mouvement de la vitre qui est alors forcée à descendre.When an obstacle is on the closing path of the window, the system must recognize the presence of an abnormal phenomenon and, if the force on the window exceeds a limit value, the window must not continue its trajectory, but s '' stop and at least release the effort. This release of the force can be obtained either by releasing the glass which descends under a weak force or under the effect of its own weight if the friction in the lateral joint allows it, or by reversing the movement of the glass which is then forced to descend.
Pour résoudre ce problème on a déjà proposé divers dispositifs de sécurité, électriques et électromécaniques, qui présentent, entre autres inconvénients, celui d'être relativement onéreux en raison de leur complexité. Ce coût de fabrication élevé est évidemment un obstacle à leur diffusion en grande série.To solve this problem, various safety devices, electrical and electromechanical, have already been proposed, which have, among other disadvantages, that of being relatively expensive because of their complexity. This high manufacturing cost is obviously an obstacle to their dissemination in large series.
L'invention a pour but de proposer un lève-vitre à câble du type mentioné ci-dessus, pourvu d'un dispositif de sécurité électromécanique qui soit de fabrication simple et par conséquent peu coûteuse.The invention aims to provide a cable window regulator of the type mentioned above, provided with an electromechanical safety device which is simple to manufacture and therefore inexpensive.
Suivant l'invention, le rail est monté déplaçable par rapport à un panneau de porte de façon à pouvoir être entraîné en translation verticale vers le bas par le câble en cas de détection d'un effort sur la vitre dépassant une valeur prédéterminée, s'opposant à la course de la vitre, et ce lève-vitre comporte des moyens de maintien du rail dans une position déterminée, tant que l'effort exercé sur la vitre reste inférieur à ladite valeur prédéterminée, et des moyens électromécaniques de détection de l'effort exercé sur la vitre et d'un déplacement du rail en translation lorsque cet effort dépasse ladite valeur prédéterminée, ces moyens électromécaniques permettant alors d'inverser automatiquement le sens de rotation du moteur.According to the invention, the rail is mounted movable relative to a door panel so as to be able to be driven in vertical translation downwards by the cable in the event of detection of a force on the window exceeding a predetermined value, opposing the travel of the window, and this window lifter comprises means for holding the rail in a determined position, as long as the effort exerted on the glass remains below said predetermined value, and electromechanical means for detecting the force exerted on the glass and a displacement of the rail in translation when this force exceeds said predetermined value, these electromechanical means then making it possible to reverse the direction of rotation of the motor.
Suivant une forme de réalisation de l'invention, lesdits moyens de maintien comprennent un aimant fixé au panneau de porte et une patte en matériau ferromagnétique solidaire du rail, positionnée de manière à être maintenue collée sur l'aimant tant que l'effort exercé sur la vitre reste inférieur à ladite valeur prédéterminée, et lesdits moyens électromécaniques comportent un interrupteur coopérant avec le rail de façon à être maintenu dans un premier état tant que l'effort exercé sur la vitre est inférieur à ladite valeur prédéterminée, et à passer dans un second état lorsque cet effort dépasse ladite valeur et que le rail est alors déplacé.According to one embodiment of the invention, said holding means comprise a magnet fixed to the door panel and a tab made of ferromagnetic material secured to the rail, positioned so as to be kept glued to the magnet as long as the force exerted on the window remains below said predetermined value, and said electromechanical means comprise a switch cooperating with the rail so as to be maintained in a first state as long as the force exerted on the window is less than said predetermined value, and to pass through a second state when this force exceeds said value and the rail is then moved.
Ainsi selon l'invention le pesage de l'effort sur la vitre s'effectue par un rail mobile, l'effort sur la vitre se retrouvant de manière quasi intégrale sur le chariot portant la vitre et qui est fixé au câble. Ce chariot transmet en effet l'effort au rail, soit par l'intermédiaire des poulies et éléments de fixation du câble lorsque celui-ci est torsadé, soit par l'intermédiaire de la gaine enveloppant le câble lorsque ce dernier est du type crémaillère. Ainsi, alors que dans un lève-vitre classique le rail de guidage est directement fixé sur le panneau intérieur de la porte, il est monté coulissant en translation verticale par rapport au panneau de porte conformément à l'invention, et permet donc d'obtenir une image de l'effort sur la vitre.Thus according to the invention the weighing of the force on the glass is carried out by a movable rail, the force on the glass being found almost completely on the carriage carrying the glass and which is fixed to the cable. This carriage in fact transmits the force to the rail, either by means of pulleys and cable fixing elements when the latter is twisted, or by means of the sheath enveloping the cable when the latter is of the rack type. Thus, while in a conventional window regulator the guide rail is directly fixed to the interior panel of the door, it is mounted sliding in vertical translation relative to the door panel according to the invention, and therefore makes it possible to obtain an image of the force on the glass.
L'invention sera maintenant décrite en référence aux dessins annexés qui en illustrent quatre formes de réalisation à titre d'exemples non limitatifs.The invention will now be described with reference to the accompanying drawings which illustrate four embodiments thereof by way of non-limiting examples.
La figure 1 est une vue en élévation simplifiée d'une première forme de réalisation du dispositif de sécurité selon l'invention, appliquée à un lève-vitre électrique à câble Bowden.Figure 1 is a simplified elevational view of a first embodiment of the safety device according to the invention, applied to an electric window regulator with Bowden cable.
La figure 2 est une vue en élévation latérale partielle de la partie inférieure du dispositif de la Fig.1 dans un plan perpendiculaire à celle-ci.Figure 2 is a partial side elevational view of the lower part of the device of Fig.1 in a plane perpendicular thereto.
Les figures 3 et 4 sont des vues en élévation analogues à la Fig.1 illustrant deux autres formes de réalisation de la sécurité selon l'invention, appliquées à des lève-vitre à câble torsadé.Figures 3 and 4 are elevational views similar to Fig.1 illustrating two other embodiments of safety according to the invention, applied to window regulators with twisted cable.
La figure 5 est une vue en élévation simplifiée d'un lève-vitre à câble crémaillère équipé d'une quatrième forme de réalisation du dispositif de sécurité conforme à l'invention.Figure 5 is a simplified elevational view of a rack cable window regulator equipped with a fourth embodiment of the safety device according to the invention.
Le lève-vitre 1 représenté à la Fig.1 comprend un motoréducteur 2 d'entraînement d'un câble torsadé ou câble Bowden 3, passant sur deux poulies 4, 5 de renvoi. Le brin du câble 3 situé entre ces deux poulies s'étend le long d'un rail 6 de guidage, monté déplaçable en translation verticale par rapport à un panneau 7 de porte partiellement représenté. Le câble 3 porte un chariot 8 sur lequel est monté une vitre non représentée. Au panneau de porte 7 est fixé, entre deux plaques d'armature 9, un aimant 11, ces éléments étant portés par exemple par une patte 12 saillant du panneau 7. Complémentairement le rail 6 est pourvu d'une patte 13 en matériau ferromagnétique, s'étendant transversalement au rail 6 au-dessous de l'aimant 11 et positionnée sur le rail de manière à être maintenue collée sur l'aimant 9 tant que l'effort exercé sur la vitre reste inférieur à une valeur prédéterminée, en l'occurrence la force d'attraction de l'aimant 11 sur la patte 13.The window lifter 1 shown in Fig.1 comprises a geared
Par ailleurs, le dispositif de sécurité comprend des moyens électromécaniques comportant un interrupteur électrique 14, porté par le panneau 7 et dont le contact mobile peut coopérer avec une patte transversale 15 du rail 6. Ainsi l'interrupteur 14 peut être maintenu dans un premier état tant que l'effort exercé sur la vitre reste inférieur à la force d'attraction de l'aimant 11 sur la patte 13. Il peut passer dans le second état lorsque cet effort dépasse ladite force d'attraction et que le rail 6 est alors déplacé vers le bas en translation verticale, provoquant l'écartement de la patte 13 de l'aimant 11 et de l'interrupteur 14.Furthermore, the safety device comprises electromechanical means comprising an
L'interrupteur 14 fait partie d'un circuit électrique approprié, non représenté car connu en soi, et qui ne nécessite par conséquent pas de description. Ce circuit inverse le sens de rotation du moteur du motoréducteur 2 pour faire descendre la vitre et libérer l'obstacle lorsque l'interrupteur 14 passe dans son second état.The
La position de départ est la position haute, représentée en trait continu à la Fig.1, dans laquelle l'interrupteur 14 est actionné et la patte 13 du rail 6 est attirée par l'aimant 11. Si l'effort sur la vitre dépasse la limite fixée par la force d'attraction de l'aimant 9 sur la patte 11, par interposition d'un obstacle dans la trajectoire de la vitre, le rail 6 va descendre et l'interrupteur 14 ne sera plus actionné.The starting position is the upper position, shown in solid lines in Fig.1, in which the
Le mode de réalisation de la sécurité illustré à la Fig.3 diffère du précédant uniquement par le fait que le pesage de l'effort est réalisé au moyen d'un ressort de compression 16 placé sous l'extrémité inférieure du rail 6. Le ressort 16 maintient ce dernier en position haute, tant que l'effort exercé sur la vitre, et transmis au rail 6 par le chariot 8 et le câble 3, reste inférieur à une valeur prédéterminée. Celle-ci correspond ici à la précontrainte du ressort 16, dont l'extrémité inférieure prend appui sur un point fixe 17 (panneau de porte 7 par exemple). Lorsque l'effort subi par la vitre par suite de l'interposition d'un obstacle sur son parcours de montée dépasse la précontrainte du ressort 16, le rail 6 est entraîné en translation vers le bas à l'encontre la force de rappel du ressort 16. La patte 15 s'écarte de l'interrupteur 14 qui n'est plus actionné, et le circuit électrique, dont fait partie l'interrupteur 14, inverse automatiquement le sens de rotation du moteur du motoréducteur 2.The safety embodiment illustrated in Fig. 3 differs from the previous one only in that the effort is weighed by means of a compression spring 16 placed under the lower end of the
La forme de réalisation de la sécurité illustrée à la Fig.4, appliquée également à un lève-vitre du type à câble torsadé 3, comprend deux éléments élastiques 18, qui peuvent être réduits à un seul en variante. Chacun des éléments élastiques est constitué par un ressort 18 précontraint, dont une extrémité est articulée autour d'un axe 19 sur le panneau de porte (non représenté), et l'autre extrémité 18a est accouplée au rail mobile 6. Cet accouplement peut être réalisé par exemple comme représenté au moyen d'un doigt 21 faisant saillie sous l'extrémité inférieure du rail 6, et sur la surface duquel sont agencées des encoches 22 (ou une gorge), dans lesquelles vient s'engager, de manière amovible, l'extrémité de chaque ressort 18. Les deux ressorts 18 peuvent ainsi prendre deux positions stables, à savoir une première position haute correspondant à la position normale du rail 6, représentée en trait continu, et une position basse, représentée en traits mixtes (18a, 21a), prise par le rail 6 après qu'un effort dépassant la précontrainte des ressorts 18 ait déplacé le rail 6 vers le bas. Ce déplacement entraîne alors la sortie des entailles 22 des extrémités des ressorts 18 qui y étaient engagées, et le désaccouplement corrélatif du doigt 21 et du rail 6 des ressorts 18.The embodiment of the safety illustrated in Fig.4, also applied to a window regulator of the
En position haute normale du rail 6, les ressorts 18 exercent sur le doigt 21 et le rail 6, ainsi que sur les poulies 4, 5 et le câble 3, des forces verticales qui maintiennent l'ensemble dans cette position tant que la vitre ne subit pas un effort qui s'oppose à son avance, supérieur à la précontrainte des ressorts 18. Le système de la Fig.4 a ainsi une mémoire dite "mécanique intrinsèque". Si l'effort dépasse la valeur de cette précontrainte, le rail 6 le transmet par le doigt 21 aux ressorts 18, et descend dans son deuxième état stable, en position basse. Il est alors maintenu dans cette position par les forces verticales des ressorts 18 qui sont maintenant orientées vers le bas. Dès que le rail 6 change de position, l'interrupteur 14 change également de position et le circuit électrique dont il fait partie inverse le mouvement de la vitre par inversion du sens de rotation du moteur. Pour revenir à la position de départ, il faut vaincre l'effort des ressorts 18, par exemple en prolongeant l'appui sur le bouton du circuit électrique de commande en position descente, alors que la vitre est en position basse.In the normal high position of the
La quatrième forme de réalisation de l'invention, illustrée à la Fig.5, est appliquée à un lève-vitre 10 du type à câble crémaillère 23 coulissant dans une gaine 24, dont la portion sensiblement verticale 23a s'étend le long du rail 6 de guidage. La gaine 23 et le rail 6 sont déplaçables ensemble en translation verticale par rapport au panneau de porte (non représenté). Le rail 6 est monté en appui par son extrémité inférieure sur un ressort de compression 25 dont l'extrémité repose sur un point fixe 17. La sécurité comprend également un interrupteur 26 coopérant avec la gaine 23 comme représenté, ou en variante avec le rail 6, de façon à pouvoir prendre deux états successifs : le premier correspond à la position haute de la gaine 3 et du rail 6, représentée en traits continus à la Fig.4, et le second à la position basse, représentée en traits mixtes, prise dès que la vitre subit un effort, s'opposant à sa montée, qui dépasse une valeur limite prédéterminée. En l'occurrence cette dernière est la force de rappel du ressort 25, maintenant normalement le rail 6 et la gaine 23 en position haute.The fourth embodiment of the invention, illustrated in FIG. 5, is applied to a
L'interrupteur 26 fait partie, comme les autres interrupteurs 14, d'un circuit électrique de commande connu en soi, capable d'inverser le sens de rotation du moteur d'entraînement du câble 23 après descente de la gaine 23 et du rail 6 et changement d'état de l'interrupteur 26.The
Il convient d'observer que, alors que le dispositif de la Fig.4 est à mémoire mécanique, les dispositifs des Fig.1, 2, 3 et 5 nécessitent des circuits électriques à mémoire électrique, car ces dispositifs de sécurité reviennent de manière quasi immédiate à leur position de départ après détection de l'effort supérieur à la valeur limite, et inversion du mouvement.It should be observed that, while the device of Fig. 4 is with mechanical memory, the devices of Fig. 1, 2, 3 and 5 require electrical circuits with electrical memory, because these safety devices return almost immediately at their starting position after detection of the force greater than the limit value, and reversal of the movement.
Bien entendu l'invention n'est pas limitée aux modes de réalisation décrits ci-dessus et peut comporter diverses variantes d'exécution. Par exemple l'interrupteur 26 de la Fig.5 peut être déplacé pour coopérer avec le rail 6 comme aux Fig.1 à 4.Of course, the invention is not limited to the embodiments described above and may include various variant embodiments. For example the
Claims (6)
- A vehicular electric window winding mechanism (1; 10) of the type with a cable (3, 23) for driving the window by a motor, this cable being mounted to slide along a guide rail (6), characterised in that the rail is displaceably mounted in relation to a door panel (7) so as to be driven vertically downwards by the cable when a force is detected on the window which exceeds a designated value, and which opposes motion of the window, and this window winding mechanism comprises means (9, 13 . . .) for holding the rail in a fixed position as long as the force exerted on the window is lower than the said designated value, and electromechanical means (14, 15 . . .) for detecting the force exerted on the window and a movement of the rail during translation when this force exceeds the said designated value, these electromechanical means subsequently enabling the direction of rotation of the motor to be reversed automatically.
- A window winding mechanism according to Claim 1, characterised in that the said holding means comprise a magnet (9) fixed to the door panel (7) and a lug (13) made of a ferromagnetic material and integral with the rail (6), and positioned so as to be kept stuck to the magnet as long as the force exerted on the window is lower than the designated value, and the said electromechanical means comprise a switch (14) co-operating with the rail so as to be held in a first state as long as the force exerted on the window is lower than the said designated value, and so as to move into a second state when this force exceeds the said value and the rail is then moved.
- A window winding mechanism according to Claim 1, characterised in that the means for holding the rail (6) comprise a spring (16) which is positioned under the lower end of the rail, which holds the said rail in a raised position and which can be compressed when the rail is moved during translation downwards, and the electromechanical means comprise a switch (14) of an electrical control circuit, co-operating with the rail so as to be held in a first state as long as the force exerted on the window is lower than the said designated, value, and so as to move into a second state when this force exceeds the said value and the rail is then moved.
- A window winding mechanism according to Claim 1, characterised in that the holding means comprise at least one and preferably two prestressing, resilient members (18), one end thereof being articulated (19) on a fixed support and the other end being connected to the moving rail (6) so as to be able to adopt two stable positions, a first raised position corresponding to the normal position of the rail, and a lower position adopted by the rail after a force exceeding the said designated value has moved the rail downwards.
- A window winding mechanism according to Claim 4, characterised in that the electromechanical means comprise a switch (14) of an electrical control circuit which is mounted on the door panel (7) and co-operates with the rail (6) so as to be able to adopt two successive states corresponding to the raised position and the lower position of the rail respectively.
- A window winding mechanism according to Claim 1, intended for a window winding mechanism (10) of the type with a rack cable (23) sliding in a sheath (24), the rail and the sheath being vertically displaceable, characterised in that the rail (6) is mounted so as to rest by means of its lower end on a spring (25), and the said electromechanical means comprise a switch (26) of an electrical control circuit, co-operating with the sheath or the rail so as to be able to adopt two successive states corresponding to the raised and lower positions of the rail and the sheath, the lower position being the position taken after a force exceeding the designated value has been exerted on the window.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9208621A FR2693569B1 (en) | 1992-07-10 | 1992-07-10 | Safety device for electric window winders of the cable type sliding along a guide rail. |
FR9208621 | 1992-07-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0579518A1 EP0579518A1 (en) | 1994-01-19 |
EP0579518B1 true EP0579518B1 (en) | 1996-09-04 |
Family
ID=9431818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93401391A Expired - Lifetime EP0579518B1 (en) | 1992-07-10 | 1993-06-01 | Electric vehicle window actuator employing a cable sliding along a guide rail |
Country Status (8)
Country | Link |
---|---|
US (1) | US5469656A (en) |
EP (1) | EP0579518B1 (en) |
JP (1) | JPH0658041A (en) |
BR (1) | BR9302820A (en) |
CA (1) | CA2097771A1 (en) |
DE (1) | DE69304459T2 (en) |
FR (1) | FR2693569B1 (en) |
MX (1) | MX9303748A (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19618853C1 (en) * | 1996-05-10 | 1997-08-14 | Brose Fahrzeugteile | Motorised window drive with electronic anti-jamming protection e.g. for motor vehicles |
FR2758850B1 (en) * | 1997-01-24 | 1999-03-19 | Mecaplast Sam | VEHICLE DOOR WINDOW CASSETTE |
FR2765613B1 (en) * | 1997-07-04 | 1999-09-17 | Rockwell Lvs | ELECTRIC WINDOW REGULATOR FOR MOTOR VEHICLE PROVIDED WITH AN ANTI-PINCH SYSTEM |
DE10039842B4 (en) * | 2000-08-10 | 2005-09-29 | Meritor Automotive Gmbh | Guide rail for a movable window pane |
GB0102987D0 (en) * | 2001-02-07 | 2001-03-21 | Meritor Light Vehicle Sys Ltd | An assembly |
US20030014336A1 (en) * | 2001-05-04 | 2003-01-16 | Fu-Tak Dao | Analytically determining revenue of internet companies using internet metrics |
CN102619432B (en) * | 2012-04-18 | 2014-07-09 | 温州天球电器有限公司 | Fork arm type electric glass lifter |
CN102606024B (en) * | 2012-04-25 | 2014-07-02 | 浙江瑞翔汽车电机有限公司 | Electric glass lifter for vehicle |
CN103938974B (en) * | 2014-04-28 | 2016-07-06 | 宁波世通汽车零部件有限公司 | A kind of electric glass lifter |
CN105863429B (en) * | 2016-05-13 | 2017-07-07 | 宁波世通汽车零部件有限公司 | Metal plate integral type window regulator |
CN115263122B (en) * | 2022-07-13 | 2024-02-06 | 松果新能源汽车有限公司 | Window glass lifting control circuit and method and vehicle |
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-
1992
- 1992-07-10 FR FR9208621A patent/FR2693569B1/en not_active Expired - Fee Related
-
1993
- 1993-06-01 DE DE69304459T patent/DE69304459T2/en not_active Expired - Fee Related
- 1993-06-01 EP EP93401391A patent/EP0579518B1/en not_active Expired - Lifetime
- 1993-06-04 CA CA002097771A patent/CA2097771A1/en not_active Abandoned
- 1993-06-18 JP JP5147408A patent/JPH0658041A/en active Pending
- 1993-06-22 MX MX9303748A patent/MX9303748A/en unknown
- 1993-07-09 BR BR9302820A patent/BR9302820A/en not_active Application Discontinuation
-
1995
- 1995-03-28 US US08/411,409 patent/US5469656A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0579518A1 (en) | 1994-01-19 |
FR2693569B1 (en) | 1994-10-07 |
CA2097771A1 (en) | 1994-01-11 |
US5469656A (en) | 1995-11-28 |
DE69304459D1 (en) | 1996-10-10 |
FR2693569A1 (en) | 1994-01-14 |
MX9303748A (en) | 1994-05-31 |
BR9302820A (en) | 1994-02-22 |
DE69304459T2 (en) | 1997-01-23 |
JPH0658041A (en) | 1994-03-01 |
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