FR2601994A1 - DEVICE FOR MANEUVERING THE ARM OF LIFTING A SLIDING WINDOW OF A MOTOR VEHICLE DOOR - Google Patents

Abstract

THE DEVICE INCLUDES A PLATE 23 JOINT TO THE DOOR STRUCTURE, A SLIDE 7 JOINT TO THE LOWER PART OF THE GLASS 4, AN ARM 20 ROTATING ON PLATE 23, A CAM 31 JOINT TO THE ARM 20, A SPIRAL SPRING 40 FIXED AT ONE OF ITS ENDS AT ARM 20 AND AT ITS OTHER END TO PLATE 23 AND AN OPERATING HANDLE 30. ON PLATE 23 ARE ROTATING A PINION 27 ENGAGED WITH A TOOTHED PART 33 OF CAM 31 AND A ROLLER 28 THE HANDLE 30 IS SOLID WITH THE PINION OF THE PINION 27 AND ALLOWS THE GLASS TO UNLOCK FROM ITS CLOSED POSITION. THE ROLLER 28 COOPERATING WITH THE CAM 31 ALLOWS TO DISENGAGE THE PINION 27 FROM THE CAM 31. THE MANEUVER OF THE GLASS CAN THEN BE OBTAINED BY SIMPLE PUSHING OR TRACTION ON THE GLASS 4.

Description

260 1994

  The invention relates to a device for operating a window slidingly mounted in the structure of a motor vehicle door, making it possible to obtain three stable positions when the window is lowered or raised. Sliding windows in the side doors

  of a motor vehicle are designed to be operated from inside the vehicle, in order to obtain different opening positions as well as a position for completely closing the window.

  In reality, the user is only brought to use the window opening system in a routine manner in two cases, namely to occasionally compensate for a lack of ventilation in the passenger compartment of the vehicle and to ensure practical and efficient communication with the outside of the vehicle, for example to make payment at a motorway toll, or

to request information.

  In the first case, it suffices to ensure a very small opening of the window, the upper edge of which remains in the upper part of the opening where this window is mounted in order to obtain sufficient ventilation of the vehicle. Beyond this short opening stroke, the turbulence generated, especially at high speed, becomes very unpleasant or even unbearable for the passengers.

  In the second case, it is necessary to obtain a larger opening of the window which must then be closed at least until the ventilation position, with the least intervention.

possible from the user.

  Finally, it is necessary to obtain, in

  in some cases, a blockage of the window in the fully open position.

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  The devices currently used on

  motor vehicles require tedious or imprecise handling of commands on the part of the user.

  A manual control by crank requires eight to twelve turns to obtain a complete opening and closing cycle of the sliding window; such a device therefore requires a tedious, long maneuver which can be dangerous if the driver wishes to carry it out while running, to raise the window from a large open position, necessary for example at a highway toll, up to to a fully closed or nearly completely closed position. An electric window control does not allow precise adjustment of the opening position for ventilation of the vehicle and still requires intervention of a certain duration to reassemble the

  window from a large open position.

  Finally, an automatic and sequential control device has a high cost price, so that such a device cannot be used on low-end vehicles; moreover, such a device also does not make it possible to limit the intervention of the driver to a minimum to raise the window from a large open position necessary to put the driving position in communication with the outside.

  The object of the invention is therefore to propose a device for operating a window mounted sliding in the structure of a door of a motor vehicle, making it possible to obtain three stable positions during the descent or ascent of the window, these three positions being respectively a high position

260 1994

  closing, an intermediate position of low opening for ventilation of the vehicle and a low position of full opening, this device allowing the glass to be placed easily and very securely in the low opening position for ventilation and

  to ensure that the window is raised in this position, from a larger opening position, without user intervention, these advantages being obtained with a device of the simple and robust mechanical type 10.

  For this purpose, the device comprises: - a plate integral with the structure of the door, in a substantially vertical position, and traversed by an oblong opening, the major axis of which is vertical, carrying a toothed pinion and a roller mounted to rotate on the plate , each via an axis perpendicular to the plate, - a slide secured to the lower part of the glass arranged in a horizontal direction, - an arm rotatably mounted on the plate parallel to this, by means of an axis secured to the arm and engaged in the oblong opening of the plate, the arm further comprising, at one of its ends, an articulation axis engaged in the slide, 25 - a cam secured to the arm and successively comprising , on its actuating surface, outside the arm, a zone comprising teeth formed on a circular part of the cam, a ramp in the form of a flat and a smooth circular zone terminated by a part returning towards the e arm forming an angle with this arm at most equal to approximately 90 ′, the circular parts of the cam having as their axis the axis of rotation of the arm, a spiral spring fixed at one of its ends to the axis of the arm and at its other end to the plate ensuring the return of the arm in the direction of closing the window, - and an operating handle secured to the pinion of the pinion which can be operated from inside the vehicle, the meshing of the pinion with the toothing of the cam ensuring the locking of the window in the closed position and the operating handle making it possible to rotate the cam in contact with the roller, by means of the ramp, the direction of which between the toothing and the circular area smooth moves away from the axis of rotation of the arm, so as to ensure disengagement

of the pinion of the cam teeth.

  In order to make the invention better understood, a description will now be given, by way of nonlimiting example, of an embodiment of a device for operating a sliding vehicle window according to the invention. FIG. 1 is an elevation view of a vehicle door and of the device for operating its

  sliding window, certain elements of this door having been removed, to facilitate the representation.

  Figure 2 is a sectional view along IIII of Figure 1.

  FIG. 3 is a view in elevation on a larger scale of the operating device, in its functional position shown in FIG. 1 and

  corresponding to the complete closing of the window.

  Figure 4 is an elevational view of the positive operating dis30 according to the invention in a second functional position corresponding to the opening for ventilation of the window.

  Figure 5-is an elevational view of the operating device according to the invention in a

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  third functional position corresponding to the complete opening of the window.

  In FIG. 1, a door of a motor vehicle is shown schematically and seen from the interior of the vehicle where a user 1 has taken place. The door has a structure 2 partly made of steel sheets and profiles associated with - plastic panels. This structure 2 comprises a lower part 2a consti10 killing a box and an opening 3 in its upper part. The opening 3 is surrounded on all its sides, with the exception of its horizontal lower side, by a frame 5 serving as a guide for the sliding window 4 when it moves inside the structure 2 of the door. The frame 5 is extended by two parallel vertical uprights inside the

box 2a of the door.

  In Figure 1., the window 4 is shown in three positions 4a, 4b and 4c (each of the corresponding markings 20 indicating the position of the upper edge

  sliding glass); position 4a is the fully closed position of the window, position 4b is the low open position for ventilation and position 4c is the fully open position.

  In position 4a, the window 4 completely closes the opening 3 and its edge is engaged in the frame 5, over its entire part surrounding the opening 3, so as to produce an effective and practically hermetic closure. The lower edge 6 of the window 30 is then in position 6a, at a level slightly lower than the bottom of the opening 3. Along the edge 6 of the window 4 is fixed a slide or slide 7 forming part of the operating device 8 of the glass arranged inside the box 2a. On the face

260 1994

  1, the operating device is shown in the position it occupies, when the window is in its

position 4a.

  In its position 4c, the window 4 is practically engaged entirely inside the box 2a. In Figure 2, we see in more detail the structure 2 of the door which includes a frame 10 of steel profile, a cross member 12 delimit as the opening 3 has its lower part, the frame 10

  being completed by an surround 11 made of transparent plastic material in its upper part, up to the cross member 12. The surround 11 defines, with the cross member 12, the opening 3 and carries on its internal edge the guide frame 5 of the window 4.

  The box 2a is constituted by a panel 13 of convex shape towards the outside of the door, of plastic material fixed on the frame 10 and by a panel 14 fixed plane on the one hand on the frame 10 and on the other hand on the cross member 12. The panel 13 and the inner panel 14 have at their upper part seals 15 and 16 between which slides

  the window 4 during its movements.

  The window 4 of slightly curved shape is integral, in the vicinity of its upper edge, with a button 18 allowing its operation by manual pushing

down or up.

  In Figure 2, the window 4 is shown

  in its closed position 4a in which the bou30 ton occupies the position 18 and in its fully open position 4c in which the button occupies the position 18 '.

  As it appears by comparing Figures 1 and 2, the door has been shown in Figure 1 without the interior trim panel 14 and without the cross member 12, to show the mechanism of the device

  maneuver 8 located inside the box 2a.

  Referring to FIGS. 2 and 3, we will now describe the structure of the operating device 8 comprising a slide 7 integral with the window 4, arranged in a horizontal direction and making it possible to ensure the kinematic connection of the window 4 with a operating arm 20 comprising an axis 10 of articulation 21 on which a roller 22 is mounted

  engaged in the slide 7 to move by rolling inside this slide.

  The device 8 also comprises a plate 23 rigidly fixed, in a practically vertical position, on the structure of the door by means of rivets or screws 24 engaged on parts of the frame 10 and of its connection to the lower part 2a La plate 23 is crossed by an oblong opening 25 whose axis is vertical. The arm 20 is integral with an axis 26 engaged in the opening

oblong 25.

  On the plate 23 are also rotatably mounted, by means of axes perpendicular to the plate, a pinion 27 and a roller 28. The pinion 27 and its axis are rotatably mounted inside the plate 23, in the lower part of it

constituting a casing 23a.

  The axis of the pinion 27 is extended to the outside of the casing .23a, on the side corresponding to the interior of the vehicle where this axis is made integral with a

operating handle 30.

  The arm 20 is secured, by welding after centering on pin 32, of a cam 31 comprising an actuating part. 31a located outside the arm 20. This actuating part 31a of the cam has an edge of generally circular shape directed outwards and comprising successively, from the end of the arm opposite the articulation 21, a toothed part 33, a ramp 34 in the form of a flat, a smooth circular part 35 and a smooth and straight part 36 intersecting the arm 20, in a direction practically perpendicular to the longitudinal axis

of this arm.

  The teeth of the part 33 of the cam 31 have a shape and a module corresponding to those of the pinion 27, these teeth coming to mesh one in the other in the position of the mechanism 8 shown in FIG. 3. This teeth is machined on part of the edge of the cam constituting a circle centered on

1 axis of rotation 26 of the arm 20.

  Likewise, the smooth circular part 35 of the cam has the shape of a circle centered on the axis 26 of the arm. The ramp 34 joining the base of the toothing 33 to the smooth and circular part 35 has a direction such that this ramp 34 progressively moves away from the axis 26 of the arm 20. The roller 28 is mounted on the plate 23 in a position such that it is in contact with the initial part of the ramp 34, when the mechanism 8 is in its position shown in FIG. 3, corresponding to complete closure

of the glass.

  A spiral spring 40 is mounted inside a flat casing 41 secured to the plate 23. This spiral spring 40 is fixed by its inner end, rigidly to the axis 26 of the arm 20 and engaged and locked by its outer end in slots

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  23c crossing a tab 23b which is folded horizontally and constitutes the upper part of the plate 23. The mounting of the spring, its winding direction and its preload are such that it ensures the return 5 of the arm 20 to its position shown in the figure

  3 corresponding to the complete closing of the window.

  The plurality of slots 23c allows adjustment of the spring bandage.

  In this position, the weight of the window and the action of the spring 40 ensure that the axis 26 of the arm is maintained, in the lower position, at the lower part

of the oblong opening 25.

  In addition, the meshing of the pinion 27 integral with the handle 30 and the toothed part 33 of the cam ensures a rotation blocking of the arm and therefore a locking of the window 4 in the high closed position, by action of the self-locking device. classic

  located inside the casing 23a.

  As can be seen in FIG. 2, the 20 elements of the device are placed one after the other, in the transverse direction, from the outside to the inside, in the following order: first the arm 20 , then the cam 31, then the plate 23 and finally the spring 40, the axis 26 of the through arm 25 the cam then the plate and being fixed to the spring 40

  inward relative to the plate. This secures the arm and the cam on the plate 23, while leaving them free in rotation and in translation inside the oblong opening 25 30 and ensuring their suspension from the spring 40.

  To pass from the closed position 4a of the window to the open position for ventilation 4b as shown in FIG. 4, it suffices to push the handle 30 forwards and upwards, from inside the vehicle , this movement being accompanied by a rotation of the pinion 27 and by means of the cam 31 and of the arm 20. During this movement, the roller 28 remains in contact with the ramp 34, which produces a progressive displacement upwards of the cam and of the arm relative to the plate 23, and therefore a displacement of the axis 26 upwards in the oblong opening 25. This upward displacement of the cam 31 s is accompanied by a disengaging 10 of the teeth of the pinion 27 and of the toothed part 33 of the cam. When the handle 30 has reached its end position forwards, as shown in FIG. 4, the rotation of the cam 31 is such that the roller 28 is in contact with the initial part of the smooth circular area. 35 of the cam. The pinion 27 and the toothed zone 33 of the cam are then completely disengaged and the axis 26 is in a position halfway upwards inside the oblong opening 25. The weight of the window is then compensates 20 by the spring 40 and the cam 31 rests on the roller 28. From this position shown in FIG. 4 and corresponding to the position 4b of the window, it is possible to lower the window 25 to a further position large push opening

  or manual traction on this window, for example using the operating button 18. The force which it is necessary to exert on the window is increasing during the opening of this window, because of the increasing bandage 30 of the spring 40 .

  If we interrupt the effort exerted on the

  window 4, it rises by itself under the effect of the spring 40, to its point of equilibrium corresponding to position 4b.

  1 1 It is therefore possible to lower the window manually to communicate with the outside of the vehicle, for example at a motorway toll, the simple re-release of the window allowing it to be raised to a position allowing circulation without

  excessive ventilation of the passenger compartment.

  From this position which is that shown in FIG. 4, it is obviously possible to again obtain the locking of the window in closed position by bringing the handle 30 towards

  back and down to the position shown in Figure 3.

  It is possible, from the position 4a of low opening of the window shown in FIG. 4, to obtain a complete opening of this window to put it in position 4c, by simple pushing or pulling of the window towards the bottom. The mechanism 8 is then in the position shown in FIG. 5. The roller 28 has come by rolling on the smooth surface of the cam, in a position where it is embedded between the smooth back surface 36 and the arm 20, the surface 36 being practically perpendicular to the arm 20. The spring 40 is then at its maximum tension and the axis 26 has returned to the low position 25 in the oblong opening 25. This thus obtains a blockage of the window, the rotation in return of the arm 20, under the action of the spring 40, being prevented by the abutment of the smooth surface 36 of the cam on the

roller 28.

  To obtain the unlocking and the raising of the window from this position, it suffices to lift it slightly, for example by using the operating button 18, until the roller 28 is in contact with the end of part 35 of

26 0 1 9 9 4

  the cam 31. The spring 40 ensures the rapid ascent of

the window to position 4b.

  The operating device according to the invention therefore has the advantage of being entirely mechanical, extremely simple and very robust and of allowing very easy and very simple operation in all cases of use of the sliding window by

a passenger in the vehicle.

  The invention is not limited to the embodiment which has been described.

  One can imagine a different mounting of the operating device in the structure of the door and use an operating arm, a cam and a plate of a shape different from those which have been described. In the same way, one can imagine a mounting of the arm, the cam and the spring different from that

that has been described.

  Finally, the following operating device

  the invention applies to any sliding window of a side door of a motor vehicle.

Claims (4)

  1.- Device for operating a window (4) slidingly mounted in the structure of a door (2) of a motor vehicle, making it possible to obtain three stable positions (4a, 4b, 4c) during the descent or the raising of the window (4), these three positions being respectively a high closing position (4a), an intermediate low opening position (4b) for ventilation of the vehicle and a low position of complete opening (4c), characterized by the fact that it comprises: - a plate (23) integral with the structure (2) of the door, in a substantially vertical position and traversed by an oblong opening (25) whose major axis is vertical, carrying a pinion toothed (27) and a roller (28) rotatably mounted on the plate (23), each via an axis perpendicular to the plate, - a slide (7) integral with the lower part of the glass (4) and arranged in a horizontal direction horizontal, - an arm (20) rotatably mounted on the plate (23) and parallel to that here, by means of an axis (26) integral with the arm and engaged in the oblong opening (25) of the plate, the arm (20) comprising 25 more, at one of its ends, a hinge pin (21, 22) engaged in the slide (7), - a cam (31) integral with the arm (20) and successively comprising on its actuation surface external to the arm (20), a zone (33) comprising teeth 30 formed on a circular part of the cam, a ramp (34) in the form of a flat and a smooth circular area (35) terminated by a part (36) back towards the arm (20) forming with this arm a angle at most equal to approximately 90 ', 2 6 0 1 9 9 4   the circular parts (33, 35) of the cam having as their axis the axis of rotation of the arm (20), - a spiral spring (40) fixed at one of its ends to the axis (26) of the arm ( 20), and at its other end to the plate (23), ensuring the return of the arm (20) in the direction of closing the window (4), - and an operating handle (30) integral with the pinion axis (27) operable from inside the vehicle, the meshing of the pinion (27) with the toothing (33) of the cam (31) ensuring the locking of the window (4) in the closed position and the handle operating (30) for rotating the cam (31) in contact with the roller (28) via the ramp (34) whose direction between the teeth (33) and the smooth circular area (35) moves away from the axis of rotation of the arm (20), so as to ensure disengagement of the pinion (27) relative to the toothing (33) of the cam (31).   2. An operating device according to claim 1, characterized in that the cam (31) has the general shape of a circular sector projecting laterally with respect to the arm (20), on one of its sides.   3.- Operating device according to one   any one of claims I and 2, characterized in that the articulation (21, 22) of the arm (20) on the slide (7) is constituted by an axis (21) integral with the arm (20) and a roller (22 ) rotatably mounted on the axis (21) and movable by rolling inside the slide (7).   4.- Operating device according to one   any one of claims 1, 2 and 3, in the case where the door (2) is constituted in the form of a box 26 0 1 9 9 4   (2a) in its lower part, characterized in that the components of the operating device (8), with the exception of the handle (30) are arranged inside the box (2a),