EP0000455B1 - Closing device for a sliding element, especially for a sliding roof of a vehicle - Google Patents

Closing device for a sliding element, especially for a sliding roof of a vehicle Download PDF

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Publication number
EP0000455B1
EP0000455B1 EP78400032A EP78400032A EP0000455B1 EP 0000455 B1 EP0000455 B1 EP 0000455B1 EP 78400032 A EP78400032 A EP 78400032A EP 78400032 A EP78400032 A EP 78400032A EP 0000455 B1 EP0000455 B1 EP 0000455B1
Authority
EP
European Patent Office
Prior art keywords
toothed member
pinion
spindle
rack
roller
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
EP78400032A
Other languages
German (de)
French (fr)
Other versions
EP0000455A1 (en
Inventor
Pierre Periou
Marc Rampignon
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.)
Compagnie Industrielle de Mecanismes CIM
Original Assignee
Compagnie Industrielle de Mecanismes CIM
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Filing date
Publication date
Application filed by Compagnie Industrielle de Mecanismes CIM filed Critical Compagnie Industrielle de Mecanismes CIM
Publication of EP0000455A1 publication Critical patent/EP0000455A1/en
Application granted granted Critical
Publication of EP0000455B1 publication Critical patent/EP0000455B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J7/00—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs
    • B60J7/02—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes
    • B60J7/04—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes with rigid plate-like element or elements, e.g. open roofs with harmonica-type folding rigid panels
    • B60J7/053—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes with rigid plate-like element or elements, e.g. open roofs with harmonica-type folding rigid panels sliding with final closing motion having vertical component to attain closed and sealed condition, e.g. sliding under the roof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J7/00—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs
    • B60J7/02—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes
    • B60J7/04—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes with rigid plate-like element or elements, e.g. open roofs with harmonica-type folding rigid panels
    • B60J7/057—Driving or actuating arrangements e.g. manually operated levers or knobs
    • B60J7/0573—Driving or actuating arrangements e.g. manually operated levers or knobs power driven arrangements, e.g. electrical
    • 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
    • E05F15/632—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
    • E05F15/635—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by push-pull mechanisms, e.g. flexible or rigid rack-and-pinion arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
    • 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
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/71—Toothed gearing
    • E05Y2201/722—Racks
    • 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
    • E05Y2900/542—Roof panels
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/188—Reciprocating or oscillating to or from alternating rotary including spur gear
    • Y10T74/18808—Reciprocating or oscillating to or from alternating rotary including spur gear with rack
    • Y10T74/18816—Curvilinear rack

Definitions

  • the present invention relates to a device for closing a sliding member, in particular a sunroof of a motor vehicle, of which a transverse rod carrying a motor pinion is engaged, engaged with a fixed longitudinal rack.
  • the engine force in general, remains constant and moderate during most of the race and increases sharply during the last centimeter (s), that is to stretch the fabric when it acts of a flexible roof, that is, in the case of a rigid roof, to compress seals.
  • the object of the invention is to provide a closing device making it possible to significantly reduce the torque necessary to obtain the final closing force and, at the same time, to lock the sliding member in the closed position by relieving the members of the reducer.
  • the subject of the invention is a device of the aforementioned type, characterized in that it comprises a toothed element fixed or articulated at the front end of the rack and the teeth of which have a curved front part and a rear part. practically rectilinear, and means for forcing the pinion to remain in engagement with said curved part at the end of the closing stroke.
  • the toothed element comprises, at least in its curved part, a ramp of the same profile on which a roller is supported by the rod.
  • the device 1 shown in Figs. 1 and 2 is articulated at its rear end, by an axis 2, at the front end of a rectilinear fixed rack 3 having its teeth 4 on its upper face.
  • This device essentially comprises a toothed element 5, a hook 6, 17 and a ramp 7.
  • the element 5 is a small rack whose teeth 8, in the rest position of FIG. 1, extends over the same width the toothing 4 of the fixed rack 3.
  • the toothing 8 has a rectilinear rear part 9 whose teeth have flat sides, and a front part 10 in the form of a toothed wheel sector extending over a little more than a quarter of a circle, directed downwards, the teeth of which have rounded sides.
  • the base 11 of its first tooth is knocked down.
  • the tooth 12 located at the junction between the parts 9 and 10 of the toothing 8 has a flat rear face and a curved front face.
  • the hook 6, 17 is constituted by a rectilinear plane lever 6 attached to one side of the element 5.
  • the lower end of this lever journals on an axis 13 passing through the center of the quarter circle 10.
  • a spiral spring 14 stretched between the underside of the element 5 and a stud 15 of the lever 6 and wound around the axis 13 normally maintains this lever in abutment, in a vertical position, against a stop 16 which projects laterally on the element 5.
  • the part of the lever 6 which projects above the toothing 8 has a notch 17 open towards the rear, the bottom of which is a semicircle centered vertically on the axis 13.
  • the ramp 7 is constituted by a plate plated and riveted against the lateral face of the element 5 opposite the lever 6; the upper edge of this sheet forms a rolling ramp parallel to the toothing 8 but projecting slightly relative to the latter, preceded by an ascending collision part 18 8 and consisting of a flat rear part 18 b and d 'a front part 19 in quarter cylinder.
  • the device 1 is used at the front end of a sunroof for an automobile, under the following conditions illustrated in FIGS. 3 and 4.
  • the sunroof is secured to a transverse rod 20 guided in horizontal translation, by means not shown, in a plane P passing through the center of the notch 17; the bottom thereof has the same diameter as the rod 20.
  • This rod is connected without sliding to the output member of the reduction gear of a motor for actuating the sunroof (not shown).
  • a pinion 21 On each of its ends is wedged a pinion 21, for example of plastic material, the teeth of which have curved faces and which is engaged with a longitudinal rack 3 fixed to the body of the vehicle.
  • Each rack 3 carries at its end an articulated device 1 as described above.
  • each pinion 21 is engaged with the corresponding rack 3, as shown in phantom in FIG. 3. Then this pinion rolls in direction f on the part 9 of the element 5 until the rod 20 is received, at point A, in the bottom of the notch 17 of the hook 6, 17.
  • the pinion 21 continues to be driven in rotation in the fl direction by the rod 20, whose axis is forced to remain in the plane P. There then occurs a rolling of the pinion on the curved teeth 10 with, simultaneously, a rotation of the element 5 upwards around the axis 2 and a downward rotation of the hook 6, 17 relative to the element 5, against the spring 14.
  • the device 1 In the position of FIG. 4, the device 1 is self-locked so that the traction force F exerted in the plane P. This force is almost entirely supported by the support of the roller 24 on the part 19 of the ramp 7. It is not necessary to continue to exert a torque on the rod 20.
  • part 10 of the toothing 8 can be given a length slightly greater than that over which the closing force increases, that is to say a length of approximately 15 mm.
  • the curvature of this part 10 ensures a significant reduction in the force, so that the increase in engine torque to be provided is only about half of what it would be if the rack 3 extended to the point B.
  • the motor rotates the shaft 20 and the pinion 21 in the direction f opposite to the f i.
  • the pinion then rolls on the part 10 of the toothing 8 causing the element 5 to return to its rest position in FIG. 3, defined by its coming into abutment against the support 3 8 of the rack 3.
  • the spring 14 causes the lever 6 to return to the vertical position against the stop 16.
  • the pinion 21 then rolls successively on the part 9 of the toothing 8 and on rack 3.
  • the roller 24 can have the diameter of the pitch diameter of the pinion 21 and roll on a ramp along the pitch curve 25 of the toothing 8.
  • the roll 24 can be wedged on the rod 20, or made of material with the pinion 21, since it rotates at the same speed as the latter while rolling on the ramp. This fastening of the roller-pinion can moreover be provided in all cases, since a bearing with sliding of the roller 24 on the ramp 7 does not present any serious disadvantage.
  • the lever 6 could be suspended, freely rotatable, on the rod 20, possibly with a return spring against a stop of a bearing for guiding this rod, with the notch 17 directed forward and hooking a stud provided on the element 5 at the location of the axis 13.
  • Other means can also be provided to force the pinion 21 to roll on the part 10 of the toothing 8, for example a sheet fixed on the lateral face of the element 5 opposite the ramp 7 and provided with a circular sector slot open towards the rear at the location of the notch 17 in FIG. 3.
  • the assembly constituted by the element 5, the ramp 7 and possibly such a split sheet can be molded in one piece from a suitable material.
  • the fixed rack 3 often has a slight curvature in a vertical plane to follow the shape of the roof of the vehicle.
  • the part 9 of the element 5 has a similar curvature.
  • the element 5 can be rigidly fixed to the rack 3 in the position of FIG. 1, and the rod-pinion 21 assembly can move in a vertical slot provided in the guide bearing, this bearing being guided in horizontal translation.
  • the invention can be applied to the closing of other sliding members, in particular those, such as hermetic doors, which require increased effort at the end of the race.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transmission Devices (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Description

La présente invention concerne un dispositif de fermeture d'un organe coulissant, notamment d'un toit ouvrant de véhicule automobile, dont est solidaire une tige transversale portant un pignon moteur en prise avec une crémaillère longitudinale fixe.The present invention relates to a device for closing a sliding member, in particular a sunroof of a motor vehicle, of which a transverse rod carrying a motor pinion is engaged, engaged with a fixed longitudinal rack.

Lors de la fermeture d'un toit ouvrant d'automobile, l'effort moteur, en général, reste constant et modéré pendant presque toute la course et croît brusquement pendant le ou les derniers centimètres, soit pour tendre la toile lorsqu'il s'agit d'un toit souple, soit, dans le cas d'un toit rigide, pour comprimer des joints d'étanchéité.When closing an automobile sunroof, the engine force, in general, remains constant and moderate during most of the race and increases sharply during the last centimeter (s), that is to stretch the fabric when it acts of a flexible roof, that is, in the case of a rigid roof, to compress seals.

Il est clair que la puissance du moteur doit être calculée sur l'effort final, ce qui est coûteux et, de plus, dangereux dans le cas où un passager laisse dépasser sa tête dans l'ouverture lorsque le moteur est mis en marche.It is clear that the power of the engine must be calculated on the final effort, which is expensive and, moreover, dangerous in the case where a passenger lets his head stick out in the opening when the engine is started.

Par ailleurs, il est connu (brevet FR 1 482 016) d'utiliser un moteur à réducteur irréversible pour éviter la réouverture du toit. Dans ce cas, les organes du réducteur doivent supporter en permanence l'effort final, parfois pendant plusieurs mois; ils restent donc longtemps sous contrainte tout en étant soumis à des variations climatiques importantes, et peuvent de ce fait se déformer, par exemple s'ils sont réalisés en une matière fluant à température ambiante élevée,Furthermore, it is known (patent FR 1 482 016) to use an irreversible gear motor to avoid reopening the roof. In this case, the gearbox organs must permanently withstand the final effort, sometimes for several months; they therefore remain under stress for a long time while being subjected to significant climatic variations, and can therefore deform, for example if they are made of a material flowing at high ambient temperature,

L'invention a pour but de fournir un dispositif de fermeture permettant de réduire de façon importante le couple nécessaire pour obtenir l'effort final de fermeture et, en même temps, de verrouiller l'organe coulissant en position de fermeture en soulageant les organes du réducteur.The object of the invention is to provide a closing device making it possible to significantly reduce the torque necessary to obtain the final closing force and, at the same time, to lock the sliding member in the closed position by relieving the members of the reducer.

A cet effet, l'invention a pour objet un dispositif du type précité, caractérisé en ce qu'il comprend un élément denté fixé ou articulé à l'extrémité avant de la crémaillère et dont la denture présente une partie avant incurvée et une partie arrière pratiquement rectiligne, et des moyens pour obliger le pignon à rester en prise avec ladite partie incurvée en fin de course de fermeture.To this end, the subject of the invention is a device of the aforementioned type, characterized in that it comprises a toothed element fixed or articulated at the front end of the rack and the teeth of which have a curved front part and a rear part. practically rectilinear, and means for forcing the pinion to remain in engagement with said curved part at the end of the closing stroke.

De préférence, pour soulager aussi les dents du pignon et de la crémaillère, l'élément denté comporte, au moins dans sa partie incurvée, une rampe de même profil sur laquelle s'appuie un galet porté par la tige.Preferably, to also relieve the teeth of the pinion and the rack, the toothed element comprises, at least in its curved part, a ramp of the same profile on which a roller is supported by the rod.

D'autres caractéristiques et avantages de l'invention ressortiront de la description qui va suivre, donnée à titre d'exemple non limitatif et en regard des dessins annexés, sur lesquels:

  • La Fig. 1 est une vue en élévation latérale d'un dispositif de fermeture conforme à l'invention;
  • La Fig. 2 est une vue en plan du dispositif de la Fig. 1;
  • Les Fig. 3 et 4 sont des vues analogues à la Fig. 1 illustrant le fonctionnement de ce dispositif.
Other characteristics and advantages of the invention will emerge from the description which follows, given by way of nonlimiting example and with reference to the appended drawings, in which:
  • Fig. 1 is a side elevational view of a closure device according to the invention;
  • Fig. 2 is a plan view of the device of FIG. 1;
  • Figs. 3 and 4 are views similar to FIG. 1 illustrating the operation of this device.

Le dispositif 1 représenté aux Fig. 1 et 2 est articulé à son extrémité arrière, par un axe 2, à l'extrémité avant d'une crémaillère fixe rectiligne 3 présentant sa denture 4 sur sa face supérieure. Ce dispositif comprend essentiellement un élément denté 5, un crochet 6, 17 et une rampe 7.The device 1 shown in Figs. 1 and 2 is articulated at its rear end, by an axis 2, at the front end of a rectilinear fixed rack 3 having its teeth 4 on its upper face. This device essentially comprises a toothed element 5, a hook 6, 17 and a ramp 7.

L'élément 5 est une petite crémaillère dont la denture 8, dans la position de repos de la Fig. 1, prolonge sur la même largeur la denture 4 de la crémaillère fixe 3. La denture 8 comporte une partie arrière rectiligne 9 dont les dents ont des flancs plans, et une partie avant 10 en forme de secteur de roue dentée s'étendant sur un peu plus d'un quart de cercle, dirigée vers le bas, dont les dents ont des flancs bombés. Pour permettre le basculement vers le haut de l'élément 5 autour de l'axe 2, la base 11 de sa première dent est abattue. La dent 12 située à la jonction entre les parties 9 et 10 de la denture 8 présente une face arrière plane et une face avant bombée.The element 5 is a small rack whose teeth 8, in the rest position of FIG. 1, extends over the same width the toothing 4 of the fixed rack 3. The toothing 8 has a rectilinear rear part 9 whose teeth have flat sides, and a front part 10 in the form of a toothed wheel sector extending over a little more than a quarter of a circle, directed downwards, the teeth of which have rounded sides. To allow the upward tilting of the element 5 around the axis 2, the base 11 of its first tooth is knocked down. The tooth 12 located at the junction between the parts 9 and 10 of the toothing 8 has a flat rear face and a curved front face.

La crochet 6, 17 est constitué par un levier plan rectiligne 6 accolé à un côté de l'élément 5. L'extrémité inférieure de ce levier tourillonne sur une axe 13 passant par le centre du quart de cercle 10. Un ressort spiral 14 tendu entre la face inférieure de l'élément 5 et un téton 15 du levier 6 et enroulé autour de l'axe 13 maintient normalement ce levier en appui, en position verticale, contre une butée 16 qui fait saillie latéralement sur l'élément 5. La partie du levier 6 qui dépasse au-dessus de la denture 8 présente une échancrure 17 ouverte vers l'arrière dont le fond est un demi-cercle centré à la verticale de l'axe 13.The hook 6, 17 is constituted by a rectilinear plane lever 6 attached to one side of the element 5. The lower end of this lever journals on an axis 13 passing through the center of the quarter circle 10. A spiral spring 14 stretched between the underside of the element 5 and a stud 15 of the lever 6 and wound around the axis 13 normally maintains this lever in abutment, in a vertical position, against a stop 16 which projects laterally on the element 5. The part of the lever 6 which projects above the toothing 8 has a notch 17 open towards the rear, the bottom of which is a semicircle centered vertically on the axis 13.

La rampe 7 est constituée par une tôle plaquée et rivetée contre la face latérale de l'élément 5 opposée au levier 6; le bord supérieur de cette tôle forme une rampe de roulement parallèle à la denture 8 mais en saillie légère par rapport à celle-ci, précédée d'une partie d'abordage ascendante 188 et constituée d'une partie arrière plane 18b et d'une partie avant 19 en quart de cylindre.The ramp 7 is constituted by a plate plated and riveted against the lateral face of the element 5 opposite the lever 6; the upper edge of this sheet forms a rolling ramp parallel to the toothing 8 but projecting slightly relative to the latter, preceded by an ascending collision part 18 8 and consisting of a flat rear part 18 b and d 'a front part 19 in quarter cylinder.

Le dispositif 1 est utilisé à l'extrémité avant d'un toit ouvrant d'automobile, dans les conditions suivantes illustrées aux Fig. 3 et 4.The device 1 is used at the front end of a sunroof for an automobile, under the following conditions illustrated in FIGS. 3 and 4.

Le toit ouvrant est solidaire d'une tige transversale 20 guidée en translation horizontale, par des moyens non représentés, dans un plan P passant par le centre de l'échancrure 17; le fond de celle-ci a le même diamètre que la tige 20. Cette tige est reliée sans glissement à l'organe de sortie du réducteur d'un moteur d'actionnement du toit ouvrant (non représenté). Sur chacune de ses extrémités est calé un pignon 21, par exemple en matière plastique, dont les dents ont des faces bombées et qui est en prise avec une crémaillère longitudinale 3 fixée à la carrossiere du véhicule. Chaque crémaillère 3 porte à son extrémité un dispositif 1 articulé tel que décrit plus haut.The sunroof is secured to a transverse rod 20 guided in horizontal translation, by means not shown, in a plane P passing through the center of the notch 17; the bottom thereof has the same diameter as the rod 20. This rod is connected without sliding to the output member of the reduction gear of a motor for actuating the sunroof (not shown). On each of its ends is wedged a pinion 21, for example of plastic material, the teeth of which have curved faces and which is engaged with a longitudinal rack 3 fixed to the body of the vehicle. Each rack 3 carries at its end an articulated device 1 as described above.

Sur la presque totalité de sa course de fermeture chaque pignon 21 est en prise avec la crémaillère 3 correspondante, comme représenté en traits mixtes à la Fig. 3. Puis ce pignon roule dans le sens f sur la partie 9 de l'élément 5 jusqu'à ce que la tige 20 soit reçue, au point A, dans le fond de l'échancrue 17 du crochet 6, 17.Over almost all of its closing stroke each pinion 21 is engaged with the corresponding rack 3, as shown in phantom in FIG. 3. Then this pinion rolls in direction f on the part 9 of the element 5 until the rod 20 is received, at point A, in the bottom of the notch 17 of the hook 6, 17.

Le pignon 21 continue à être entraîné en rotation dans le sens fl par la tige 20, dont l'axe est contraint de rester dans le plan P. Il se produit alors un roulement du pignon sur la denture courbe 10 avec, simultanément, une rotation de l'élément 5 vers le haut autour de l'axe 2 et une rotation vers le bas du crochet 6, 17 par rapport à l'élément 5, à l'encontre du ressort 14.The pinion 21 continues to be driven in rotation in the fl direction by the rod 20, whose axis is forced to remain in the plane P. There then occurs a rolling of the pinion on the curved teeth 10 with, simultaneously, a rotation of the element 5 upwards around the axis 2 and a downward rotation of the hook 6, 17 relative to the element 5, against the spring 14.

Ce mouvement se poursuit jusqu'à ce que la rampe 7 rencontre une butée souple 22 (non représentée sur la Fig. 3) fixée sur la face inférieure d'un support rigide 23 constitué par exemple par la carrosserie du véhicule. Dans cette position limite correspondant à une rotation de l'élément 5 autour de l'axe 2 de l'ordre de 20 à 30°, représentée à la Fig. 4, le centre de la tige 20 se trouve au point B et a légèrement dépassé l'alignement entre les axes 2 et 13, ou encore ce qui revient au même, l'alignement entre la tige 20, le sommet de la dent de pignon en prise avec la denture 10 et l'axe 2 est légèrement franchi.This movement continues until the ramp 7 meets a flexible stop 22 (not shown in FIG. 3) fixed on the underside of a rigid support 23 constituted for example by the body of the vehicle. In this limit position corresponding to a rotation of the element 5 around the axis 2 of the order of 20 to 30 °, shown in FIG. 4, the center of the rod 20 is at point B and has slightly exceeded the alignment between the axes 2 and 13, or what amounts to the same thing, the alignment between the rod 20, the top of the pinion tooth engaged with the teeth 10 and the axis 2 is slightly crossed.

Simultanément, un galet 24 monté fou sur l'extrémité correspondante de la tige 20, à l'extérieur du pignon 21, a abordé la rampe 7 par son extrémité arrière 188-18b et a roulé le long de celle-ci.Simultaneously, a roller 24 mounted idly on the corresponding end of the rod 20, outside the pinion 21, approached the ramp 7 by its rear end 18 8-18 b and rolled along it.

Dans la position de la Fig. 4, le dispositif 1 est autoi-verrouillé guel que soit l'effort de traction F s'exerçant dans le plan P. Cet effort est à peu près intégralement supporté par l'appui du galet 24 sur la partie 19 de la rampe 7. Il n'est pas nécessaire de continuer à exercer un couple sur la tige 20.In the position of FIG. 4, the device 1 is self-locked so that the traction force F exerted in the plane P. This force is almost entirely supported by the support of the roller 24 on the part 19 of the ramp 7. It is not necessary to continue to exert a torque on the rod 20.

Il est clair que les mêmes mouvements et effets se produisent en même temps à l'autre extrémité de la tige 20.It is clear that the same movements and effects occur at the same time at the other end of the rod 20.

En pratique, on peut donner à la partie 10 de la denture 8 une longueur légèrement supérieure à celle sur laquelle l'effort de fermeture croît, c'est-à-dire une longueur d'environ 15 mm. La courbure de cette partie 10 assure une démultiplication importante de l'effort, de sorte que l'accroissement de couple moteur à fournir n'est plus que la moitié environ de ce qu'il serait si la crémaillère 3 se prolongeait jusqu'au point B.In practice, part 10 of the toothing 8 can be given a length slightly greater than that over which the closing force increases, that is to say a length of approximately 15 mm. The curvature of this part 10 ensures a significant reduction in the force, so that the increase in engine torque to be provided is only about half of what it would be if the rack 3 extended to the point B.

Il résulte de ce qui précède que l'on peut d'une part utiliser un moteur nettement moins puissant que dans la technique antérieure et pourvu d'un réducteur réversible et/ou constitué d'organes économiques, par exemple en matière plastique, puisque ce réducteur n'est soumis à aucun effort important lorsque le toit est fermé.It follows from the above that one can on the one hand use a motor significantly less powerful than in the prior art and provided with a reversible reducer and / or consisting of economic organs, for example plastic, since this reducer is not subjected to any significant effort when the roof is closed.

Pour ouvrir le toit, le moteur fait tourner la tige 20 et le pignon 21 dans le sens fl opposé à fi. Le pignon roule alors sur la partie 10 de la denture 8 en provoquant le retour de l'élément 5 dans sa position de repos de la Fig. 3, définie par sa venue en butée contre le support 38 de la crémaillère 3. Pendant ce temps, le ressort 14 fait revenir le levier 6 en position verticale contre la butée 16. Le pignon 21 roule ensuite successivement sur la partie 9 de la denture 8 et sur la crémaillère 3.To open the roof, the motor rotates the shaft 20 and the pinion 21 in the direction f opposite to the f i. The pinion then rolls on the part 10 of the toothing 8 causing the element 5 to return to its rest position in FIG. 3, defined by its coming into abutment against the support 3 8 of the rack 3. During this time, the spring 14 causes the lever 6 to return to the vertical position against the stop 16. The pinion 21 then rolls successively on the part 9 of the toothing 8 and on rack 3.

En variante, le galet 24 peut avoir pour diamètre le diamètre primitif du pignon 21 et rouler sur une rampe suivant la courbe primitive 25 de la denture 8. Dans ce cas, le galet 24 peut être calé sur la tige 20, ou venu de matière avec le pignon 21, puisqu'il tourne à la même vitesse que ce dernier en roulant sur la rampe. Cette solidarisation galet-pignon peut d'ailleurs être prévue dans tous les cas, car un roulement avec glissement du galet 24 sur la rampe 7 ne présente pas d'inconvénient sérieux.As a variant, the roller 24 can have the diameter of the pitch diameter of the pinion 21 and roll on a ramp along the pitch curve 25 of the toothing 8. In this case, the roll 24 can be wedged on the rod 20, or made of material with the pinion 21, since it rotates at the same speed as the latter while rolling on the ramp. This fastening of the roller-pinion can moreover be provided in all cases, since a bearing with sliding of the roller 24 on the ramp 7 does not present any serious disadvantage.

En variante encore, le levier 6 pourrait être suspendu, librement rotatif, à la tige 20, éventuellement avec un ressort de rappel contre une butée d'un palier de guidage de cette tige, avec l'encoche 17 dirigée vers l'avant et accrochant un téton prévu sur l'élément 5 à l'emplacement de l'axe 13. D'autres moyens peuvent d'ailleurs être prévus pour forcer le pignon 21 à rouler sur la partie 10 de la denture 8, par exemple une tôle fixée sur la face latérale de l'élément 5 opposée à la rampe 7 et munie d'une fente en secteur circulaire ouverte vers l'arrière à l'emplacement de l'encoche 17 de la Fig. 3.In another variant, the lever 6 could be suspended, freely rotatable, on the rod 20, possibly with a return spring against a stop of a bearing for guiding this rod, with the notch 17 directed forward and hooking a stud provided on the element 5 at the location of the axis 13. Other means can also be provided to force the pinion 21 to roll on the part 10 of the toothing 8, for example a sheet fixed on the lateral face of the element 5 opposite the ramp 7 and provided with a circular sector slot open towards the rear at the location of the notch 17 in FIG. 3.

L'ensemble constitué par l'élément 5, la rampe 7 et éventuellement une telle tôle fendue peut être moulé d'une seule pièce en une matière appropriée.The assembly constituted by the element 5, the ramp 7 and possibly such a split sheet can be molded in one piece from a suitable material.

Il est à noter qu'en pratique, la crémaillère fixe 3 a souvent une légère courbure dans un plan vertical pour suivre la forme du toit du véhicule. Dans ce cas, la partie 9 de l'élément 5 a une courbure analogue.It should be noted that in practice, the fixed rack 3 often has a slight curvature in a vertical plane to follow the shape of the roof of the vehicle. In this case, the part 9 of the element 5 has a similar curvature.

En variante, l'élément 5 peut être fixé rigidement à la crémaillère 3 dans la position de la Fig. 1, et l'ensemble tige 20-pignon 21 peut se déplacer dans une fente verticale prévue dans le palier de guidage, ce palier étant guidé en translation horizontale.As a variant, the element 5 can be rigidly fixed to the rack 3 in the position of FIG. 1, and the rod-pinion 21 assembly can move in a vertical slot provided in the guide bearing, this bearing being guided in horizontal translation.

Bien entendu, l'invention peut s'appliquer à la fermeture d'autres organes coulissants, notamment de ceux, tels que les portes hermétiques, qui exigent un effort accru en fin de course.Of course, the invention can be applied to the closing of other sliding members, in particular those, such as hermetic doors, which require increased effort at the end of the race.

Claims (12)

1. A device for closing a slidable element, in particular an openable roof of an automobile vehicle, on which is mounted a transverse spindle carrying a driving gear pinion meshed with a fixed longitudinally-extending rack, characterized by a toothed member (5) extending the front end of the rack (3) and having a set of teeth (8) having a curved front portion (10) and a substantially rectilinear rear portion (9), and means (6, 17) for constraining the pinon (21) to remain meshed with said curved portion (10) at the end of the closing travel.
2. A device as claimed in claim 1, characterized in that the toothed member (5) is pivotally mounted on the front end of the rack (3) and the spindle (20) is guided in rectilinear translation.
3. A device as claimed in claim 1, characterized in that the toothed member is rigidly fixed to the front end of the rack, the spindle being capable of sliding in a slot which is perpendicular to the rack and provided in a guide bearing guided in rectilinear translation.
4. A device as claimed in claim 2, characterized by a stop member (22, 23) for limiting the movement of rotation of the toothed member (5) to a position slightly beyond that in which the centre of curvature (13) of said curved portion (10) at the point where it engages the pinion (21), the axis of the pinion (21) and the axis of the pivotal mounting (2) of said toothed member (5) are aligned.
5. A device as claimed in claim 3, wherein the stop member comprises a flexible stop member (22) secured to a rigid support (23).
6. A device as claimed in any one of the claims 1 to 5, wherein the curved portion (10) of the toothed member (5) has a shape of a sector of a circle.
7. A device as claimed in any one of the claims 1 to 6, wherein said means comprise a hook member (6, 17) for the transverse spindle (20), the hook member being pivotally mounted on the toothed member (5) and elastically biased toward a position located in the path (P) of said spindle in the region of the junction between said two portions (9, 10) of said toothed member (5).
8. A device as claimed in claims 6 and 7, wherein the hooking portion (17) constitutes the free end of a lever (6) which is pivotally mounted, adjacent its other end, at the centre (13) of said curved portion (10).
9. A device as claimed in any one of the claims 1 to 8, wherein the toothed member (5) comprises, at least in said curved portion (10) thereof, a ramp (7) having the same profile on which a roller (24) carried by the spindle (20) bears.
10. A device as claimed in claim 9, wherein the roller (24) is freely rotatable on the spindle (20).
11. A device as claimed in claim 9, wherein the roller is in one piece with the pinion (21).
12. A device as claimed in claim 9, 10 or 11, wherein the ramp (7) follows the pitch line (25) of the set of teeth (8) of said toothed member (5), the roller (24) having a diameter which equals the pitch diameter of the pinion (21).
EP78400032A 1977-07-11 1978-06-22 Closing device for a sliding element, especially for a sliding roof of a vehicle Expired EP0000455B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7721260 1977-07-11
FR7721260A FR2397512B1 (en) 1977-07-11 1977-07-11 DEVICE FOR CLOSING A SLIDING MEMBER, IN PARTICULAR OF A SUNROOF OF A MOTOR VEHICLE

Publications (2)

Publication Number Publication Date
EP0000455A1 EP0000455A1 (en) 1979-01-24
EP0000455B1 true EP0000455B1 (en) 1980-07-23

Family

ID=9193203

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78400032A Expired EP0000455B1 (en) 1977-07-11 1978-06-22 Closing device for a sliding element, especially for a sliding roof of a vehicle

Country Status (11)

Country Link
US (1) US4260189A (en)
EP (1) EP0000455B1 (en)
JP (1) JPS5419048A (en)
AR (1) AR214804A1 (en)
BR (1) BR7804441A (en)
CA (1) CA1085433A (en)
DE (1) DE2860057D1 (en)
ES (1) ES237017Y (en)
FR (1) FR2397512B1 (en)
IT (1) IT1159890B (en)
MX (1) MX145176A (en)

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Publication number Priority date Publication date Assignee Title
FR2503057B1 (en) * 1981-04-07 1985-09-13 Heuliez Dea OPENING DEVICE FOR A SUNROOF, PARTICULARLY FOR A MOTOR VEHICLE
US4652045A (en) * 1983-08-26 1987-03-24 Sky-Top Sunroofs, Ltd. Sliding and venting sunroof
GB8425774D0 (en) * 1984-10-12 1984-11-21 Idex Uk Ltd Frame for vehicle sunroof
GB2185525B (en) * 1986-01-18 1989-10-25 Britax Weathershields Vehicle roof opening mechanism
DE3645314C5 (en) * 1986-04-28 2006-04-13 Geze Gmbh door closers
DE4206565C2 (en) * 1992-03-02 1995-01-19 Marantec Antrieb Steuerung Sliding gate
DE102004047629A1 (en) * 2004-09-30 2006-04-13 Dura Automotive Plettenberg Entwicklungs- Und Vertriebs Gmbh Sliding window, in particular for a motor vehicle
KR100750313B1 (en) 2006-11-28 2007-08-17 현대모비스 주식회사 Rotating type damper
AT506920B1 (en) * 2008-06-11 2010-03-15 Jarolim Reinhold SELF-LOCKING DOOR DRIVE
US8801320B2 (en) * 2012-06-26 2014-08-12 Koncept Technologies Inc. Self biased joint and method
CN103016692B (en) * 2012-12-12 2017-01-25 中国核电工程有限公司 Tooth collision prevention mechanism of relay driving fuel transfer device
WO2014162512A1 (en) * 2013-04-02 2014-10-09 パイオニア株式会社 Rack and spur gear mechanism, rack and spur gear drive mechanism and rack and drive device
DE102014110588A1 (en) 2013-07-30 2015-02-05 Magna Closures Inc. Antríebssystem for a sliding roof arrangement
JP6388395B2 (en) * 2014-10-14 2018-09-12 キヤノン株式会社 Image forming apparatus
KR101706985B1 (en) * 2015-03-12 2017-02-16 주식회사 세진아이지비 A transmission device for converting a torque

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DE137327C (en) *
US2245832A (en) * 1938-11-01 1941-06-17 Ternstedt Mfg Co Sliding top
FR929382A (en) * 1949-07-04 1947-12-24 Improvements to soft sunroofs and tents, especially vehicle sunroofs
US2989008A (en) * 1955-10-14 1961-06-20 Entpr Railway Equipment Co Resilient hopper-door type outlet construction
FR1482016A (en) * 1966-02-18 1967-05-26 Renault Operating device for vehicle sunroof

Also Published As

Publication number Publication date
FR2397512A1 (en) 1979-02-09
JPS5419048A (en) 1979-02-13
FR2397512B1 (en) 1986-05-02
IT1159890B (en) 1987-03-04
EP0000455A1 (en) 1979-01-24
IT7868626A0 (en) 1978-07-10
US4260189A (en) 1981-04-07
ES237017Y (en) 1979-01-16
AR214804A1 (en) 1979-07-31
ES237017U (en) 1978-09-16
MX145176A (en) 1982-01-12
BR7804441A (en) 1979-03-06
CA1085433A (en) 1980-09-09
DE2860057D1 (en) 1980-11-13

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