FR2496747A1 - WINDOW REGULATOR DEVICE, PARTICULARLY FOR A MOTOR VEHICLE DOOR - Google Patents

Abstract

THIS PLASTIC PREDOMINANT WINDOW REGULATOR DEVICE IS ESPECIALLY INTENDED FOR THE EQUIPMENT OF MOTOR VEHICLE DOORS. IT IS ESSENTIALLY CONSISTING OF A GEAR MOTOR 7 WHOSE OUTPUT PINION 6 DRIVES TWO MANEUVER ARMS 3 AND 4 ARRANGED RADIALLY FROM THE CENTER OF A CYLINDRICAL CONTROL UNIT 1, ACTING AS A PLATE, ON THE SOUND PERIPHERY GUIDES, BY THE INTERMEDIATE OF A SLIDER 2, THE TWO RADIAL ARMS 3 AND 4, DRIVEN IN AN ANGULAR MOVEMENT AROUND THE BOX 1 BY AT LEAST ONE PERFORATED FLEXIBLE RACK 5 EXERCISING ON THE SAID ARMS 3 AND 4 A THRUST OR TENSION ACCORDING TO THE DESIRED DIRECTION OF ROTATION OF THE DRIVE GEAR 6 ON WHICH IT ENGAGES TO BE DRIVEN.

Description

249674i _ 1 -

  WINDOW REGULATOR DEVICE, PARTICULARLY FOR A MOTOR VEHICLE DOOR

MOBILE

  The present invention relates to a window-lift device in particular

  motor vehicle door ment of the type comprising a

  control pin driven by a gearmotor and meshing on a rack integral with at least one of the ends of two maneuvering arms of variable angularity as a function of the position of the glass which is provided at its lower part with a slide in which slide ball joints arranged at ends

of the arms which carry it.

  The known conventional devices of this type are constituted by two arms of cut t8le, crossed and angularly articulated in their center in the manner of a pair of scissors, one of their ends of which is capable of sliding in a slide of the ice for the drive up or down thanks to a drive gearmotor whose output pinion drives a sector-shaped rack disposed at the other end of one of the arms, this assembly being mounted on a plate allowing its fixing

  in the door at several points.

  The major drawback of this device is above all the clutter -

  ment of the whole and the number of component parts o a relatively large weight which goes against the current trend of car manufacturers whose main objective is the lightness of vehicles so as to be able to achieve energy savings. In addition, such a device, for

  its size requires such an opening, for its introduction

  tion in the door which tends to reduce the rigidity of said door. In addition, this kind of device requires adaptation to each

  different vehicle and even it requires to design two dispo-

  asymmetric sitives by type of vehicle in order to adapt

  one in the right door, the other in the left door.

  It is obvious that the multiplicity of these creations increases the

  cost price and inventory management fees.

  In order to remedy these drawbacks, it has been proposed by the request

  deresse in its application No. 80 08577, a device having the advantage

  not to require a support plate, therefore to allow an allî -

  weight, and to be universal, so as to limit the references

rences.

  This device comprises a control pinion causing a run-

  perforated transmission line stretched by two first toothed return pulleys, and forming a triangle by the addition of a third pulley, belt made partially rigid by two rails articulated like a compass around one of the return pulleys so that, associated with the third flexible side, they constitute an assembly that is both homogeneous and foldable, capable of being successively folded for its easy introduction into the door.

  and be redeployed for its final positioning.

  This device overcomes some disadvantages but creates more

  very because if the flexibility of one of the sides facilitates the introduction into the door that has the disadvantage of constituting a

  articulated and non-compact assembly which, although it does not

  tine, requires the provision of several fixing points

  intended to stiffen the assembly and tighten the belt after

troduction in the door.

  In addition, such a system limits the travel of the ice inside.

from the door.

  The object of the present invention is to remedy all the inconveniences

  aforementioned products of the two known types of window lifters, offering a compact and universal assembly, of easy handling and of a

extremely light weight.

  To this end, it relates to a window-lifting device, in particular of the door of a motor vehicle of the type comprising a pinion of

  control driven by a gearmotor and meshing on a rack

  1st integral with at least one of the ends of two arms of ma-

  work with variable angularity depending on the position of the glass which is provided at its lower part with a slide in which ball joints are arranged at one end of the

  arms which drive it characterized in that the two arms of ma-

  work are arranged radially relative to the center of a cylindrical control box, acting as a plate, on the periphery of which are guided, by means of a slide, the two radial arms, entrained in an angular debate around of the housing by at least one flexible perforated rack exerting on said arms a push or a pull according to the desired direction of rotation of the control pinion on which

  it meshes to be trained.

  - 3 - According to a preferred embodiment the control gear

  drives two flexible racks, one directly and the other

  be by means of a return pinion, one of the free ends of each rack being formed by a loop, guided in portions of the peripheral corridor of the case and simultaneously causing a convergent or divergent movement, both

  radial arms secured to the ends of said flexible racks.

  The following description based on the accompanying drawings will

  better understand how the invention can be realized.

  Figure 1 shows a plan view of a lifter device

  glass according to the invention in a high position of the glass.

  Figure 2 is a plan view of a window lifter device

  vant another embodiment in a high position of the glass.

  FIG. 3 is a plan view according to FIG. 2 in a position

low ice.

  Figures 4e and 4b respectively show a plan view and a bottom view of a window lifter device according to a

another embodiment.

  Figure 5 is a bottom view showing the housing of the motor-

  conductor according to the embodiments shown in the figures

1,2 and 4.

  Figure 6 is an exploded perspective view of an operating arm

  obtained by cutting and folding a sheet blank.

  Figure 7 is a sectional view along line M of Figure 6

  after mounting in the peripheral corridor of the control unit.

  Figure 8 is an exploded perspective view of an operating arm.

  vre obtained by plastic molding.

  Figure 9 is an exploded perspective view of an operating arm.

  vre obtained from a cylindrical profile.

  FIG. 10 is a plan view showing the control arms according to FIGS. 6 or 8 extended towards the center of the housing for

be articulated there.

  The ice-lifting device shown in the figures generally comprises a control box 1 acting as a plate,

  on the periphery of which are guided, by means of a

  ram 2, the two radial arms 3 and 4, driven in a debat-

  angular, alternately following the arrows Fl - F2, around

  of the case l by at least one flexible rack 5 perforated and ground! -

  - 4 - darisée of said arms 3 and 4 to exert on them a push or

  traction in the desired direction of rotation of a drive pinion

  command 6, driven by a geared motor 7, and on which it is

  grenne through its perforations to be entrainé and thus cause the angular movement of the arms 3 and 4 at the free ends of which is arranged a ball joint 8 capable of sliding in a slide (not shown) disposed at the lower part of the glass (not shown ) to train him in a movement

  going up or down in the vehicle door.

  -10 Also generally, the geared motor 7 is embedded in a housing 9 corresponding to its external shape and obtained during the same molding operation with the control unit.

1, on the back of the latter (fig 5).

  The arrangement of the constituent elements of the gear motor 7 can also be carried out as described in patent application No. FR 77 10353 of the applicant with the only difference that the lower casing of the gear motor is advantageously replaced by the

control unit 1.

  According to a particular embodiment of the invention, shown in Figure 1, the free ends 5a and 5b of the flexible rack 5 are secured to the arms 3 and 4 by means of the sliders 2 which comprise means of connection with said rack 5.The free ends 5a and 5b of the rack 5 form two S-shaped loops, which are guided in portions of peripheral passage 10 obtained by molding with the housing 1 and driving, simultaneously and respectively by push and pull in a converging movement where the two radial arms diverge

  3 and 4 according to the arrows F1 or F2.

  In this embodiment, the opposite movements of the arms 3 and 4 is precisely obtained thanks to the S shape given to the belt which has the effect of transforming a traction movement into a pushing movement or vice versa for one of the ends of

the belt 5.

  The embodiment shown in Figures 2 and 3 shows res-

  pectively in the high or low position of the window, a window lifter device essentially different from the previous one in that the control pinion 6 drives two flexible racks 11 and 12, one of which 12 directly and the other It by means of a pinion 13 integral with a return pinion (not visible) driven

by the control gear- (6).

  The free ends 11a and 12a of the flexible racks 11 and

  12 form a guided loop in the peripheral corridor portions

  riquelO of the housing 1 and drive simultaneously by pushing or

  by pulling arms 3 and 4 in a convergent or diver movement.

  nice. The comparison of FIGS. 2 and 3 clearly shows the movement of the racks 11 and 12 as a function of their respective drive.

  by the pinions 13 and 6 rotating in opposite directions and communicating

  as for arms 3 and 4 of the movements also opposite by

  through racks Il and 12.

  The embodiment represents recto and verso respectively in FIGS. 4a and 4b essentially differs from the previous ones in that a double control pinion 14 crosses the housing of

  command 1 and leads simultaneously and respectively to two

  flexible links 15 and 16 arranged on either side of the housing

  1 and including one of the free ends 15a and 16a of each rack,.

  1st 15 and 16 form a guided loop in the neck portions

  dormant 10 of the box 1 and consequently causes the

  radial arms 3 and 4 to which they are connected.

  According to another characteristic of the invention shown in FIGS. 6 and 7, the radial arms 3 and 4, used in the abovementioned embodiments, are obtained by cutting a thin sheet metal blank in which the slider 2 is shaped by folding and whose the free end 3a has an opening 17 in the form of a buttonhole obtained by cutting and capable of receiving the ball joint

8 by elastic snap.

  In this embodiment of the arms 3 and 4 the slide 2 is

  shaped by folding to obtain a U-shaped profile

  killed by folding and against folding v 900 of a central part 2a of the blank in t8le at its part opposite to the free end 3a and constituting half of the U on the one hand and by folding and against folding at 90 of the two ends 2b and 2c located on either side of the central part 2a and constituting the other half

on the other hand.

  The parallel branches 2a and 2b, 2c, thus formed cover the outer edge 1a of the control unit 1, some 2b and 2c being folded against a lower edge 1b of the housing 1 and the other 2a also folded down to form a guide 2d suitable to slide in the peripheral corridor 10 doing so

rail office.

  -6- The free part of the guide 2d is oriented towards the bottom 10a of the peripheral corridor 10 or rail and advantageously constitutes a

  comb with teeth 2nd corresponds and fits into the den-

  ture 18 resulting from the axial and longitudinal cutting of the former

  end of any of the flexible racks 5,11,12,15

  or 16 depending on the embodiment chosen, so that

  riser one of these arms for training.

  The combs 18 and 2e cannot escape from each other during operation because the width of the corridor 10 corresponds

  approximately the thickness of the rack.

  The embodiment of the arms shown in FIG. 8 essentially differs from the previous one in that the radial arms 3 or 4 are obtained by molding a plastic material during the same operation with the slide 2 and the guide 2d; and have at their free ends 3a the ball 8 advantageously obtained from

material with the arm 3.

  In order to limit the twisting of the arms 3 or 4 along their longitudinal axis, the ribs 19 are obtained by molding on at least one of the faces of said arms 3 or 4. In addition and to facilitate the deflection in plan of said arms 3 or 4, a primer 20 is planned

  at their base so as to constitute a hinge.

  It is obvious that if the requirements of molding require it the guide

  2d can be attached to the slide 2, for example by providing

  ant on the back of the guide 2d, a tesion 21 able to engage in a mortise 22 formed in the slide 2 as shown in the

  embodiment of FIG. 9 described below.

  The embodiment of the arms shown in FIG. 9 essentially differs from the previous ones in that the radial arms 3 or 4 are constituted by a pin obtained from a filiform profile with a cylindrical section and whose head 23 in the form of

  buttonhole is capable of receiving the ball 8.

  The ball 8 has at its lower part a base 8a obtained

  of material with it and provided with a groove 8b snap elas-

  tick in the above buttonholes. The symmetrical branches 3b and 3c are bent at their free end along the same plane so as to constitute a hinge pin XX 'of which each part thus formed is capable of being introduced by elastic pinching in two corresponding bearings 24 and 25 spared from

  and on the other side of the slide 2 guiding the arms 3 or 4 on the periphery

control box 1.

  -7- According to another characteristic of the invention (Figure 10) relating more particularly but not exclusively to the arms obtained by cutting a blank in t8le Figure 6 or by molding fig. 8, said arms are extended towards the center of the case 1 to pivot around a same axis 26 disposed at said center so as to provide arms 3 and 4 with more effective retention on

the commandel box.

  It is obvious that many modifications can be made.

  tees in these modes *. of embodiment cited as an example without departing from the scope of the present invention as for example the kinematics can be designed so that the belt or belts work in thrust to drive the ice

  in a downward movement and thus benefit from the weight of this

to help with the move.

- 8 -

Claims (17)

  1. Device for window-lift, in particular for a vehicle door   mobile of the type comprising a control pinion (6) driven by a geared motor (7) and meshing on a rack integral with at least one of the ends of two operating arms (8 and 4) with variable angularity as a function of the position of the ice that   is provided at its lower part with a slide in which   smooth ball joints (8) arranged at one end (3 and 4) of the   arms which drive it, characterized in that the two operating arms   vre (3 and 4) are arranged radially relative to the center of a cylindrical control box (1), acting as a plate,   on the periphery of which are guided, by means of a   beam (2), the two radial arms (3 and 4), entrained in a   angular debate around the housing (1) by at least one rack   flexible 1st perforated (5) exerting on said arms (3 and 4) a push   or traction according to the desired direction of rotation of the pinion   command (6) on which e $ lngrene to be driven.   2. A window lifter device according to claim 1 characterized in that the free ends (Sa and 5b) of the flexible rack (5) are formed by two S loops, guided in portions   of peripheral corridor (10) of the housing (1) and driving, simultaneously   in a convergent or divergent movement, the radial arms   (3 and 4) integral with the ends of said flexible rack (5).   3. Device of window lifter according to claim 1 characterized   in that the control pinion (6) drives two racks   ples (11 and 12) of which one directly and the other by means of a return pinion (13), one of the free ends (11a and 12)   of each rack (11 and 12) being formed by a loop, which   dice in peripheral corridor portions (10) of the housing (1)   and leading simultaneously, in a convergent or diversified movement   gent, the two radial arms (3 and 4) integral with the ends of the   say flexible racks (11 and 12).   4. A window lifter device according to claim 1 characterized in that a double control pinion (14), passing through the housing (1), drives simultaneously and respectively two flexible racks (15 and 16) arranged on the side and other of the case (1) and one of the free ends (15a and 16a) of which forms a loop / gaudé in portions of peripheral passage (10) of the case (1) and drives -9-   consequently, the radial arms (3 and 4) in a converging movement gent or divergent.   5. A window lifter device according to claim 1 characterized in   the gear motor (7) is embedded in a corresponding housing (9)   dant to its external shape and obtained during the same operation   molding with the control unit (i).   6. A window lifter device according to claim 1 characterized in that the constituent elements of the gear motor (7) are   arranged in a same housing (9) obtained during the same operation   molding with the control unit (1) thus advancing tagging office of casing.   7. A window lifter device according to any one of the claims   1 to 4 characterized in that the radial arms (3 and 4), are cons-   held in place by a pin, the head (23) of which is in the form of a buttonhole, capable of receiving the ball joint (8) by elastic snap-fastening, and   whose symmetrical branches (3b and 3c) are bent at their ends   free mite along the same plane so as to constitute an axis of articulation XX ′ capable of being introduced by elastic pinching   in two levels corresponds (24 and 25) arranged on both sides   be of the slide guiding the radial arms (3 and 4) on the peri camera case (1).   8. A window lifter device according to any one of the claims.   tions 1 to 4 characterized in that the radial arms (3 and 4) are obtained by molding a plastic material during the same operation with the slide (2) and comprises at their end   free (3a) the ball joint (8) obtained in one piece with the arms.   9. A window lifter device according to any one of the claims.   1 to 4 characterized in that the radial arms (3 and 4) are   obtained by cutting a thin t8le blank in which is conformed   mé by folding the slide and whose free end (3a) comprises   carries an opening (17) in the form of a buttonhole obtained by cutting   page and able to receive the ball joint (8) by elastic snap-fastening.   10. A window lifter device according to any one of the claims.   tions 7 to 9 characterized in that the radial arms (3 and 4) are extended towards the center of the housing (1) to pivot around   of the same axis (26) disposed at said center.   11. A window lifter device according to any one of the claims.   tions 7 and 8 characterized in that the slide (2) obtained by plastic molding is constituted by a U-shaped element whose parallel branches (2a and 2c) cover the outer edge of the control unit (1), l 'one of them (2c) being folded against a lower edge (1) to the housing (1) and the other 2a   arranged to receive a guide (2d) capable of sliding in the cou-   peripheral dormice (10) thus acting as a rail.   12. A window lifter device according to claim 9 characterized in that the slider is shaped by pligepour to obtain a U whose parallel branches (2a and 2c) cover the outer edge la) of the control unit (1), one of them (2c) being folded against a lower edge (lb) of the housing (1) and the other (2a) also folded down to constitute a guide (2d) capable of sliding   in the peripheral slide (10) thus acting as a rail.   13. A window lifter device according to claim 11 characterized in that the guide (2d) is obtained by molding during a m8me operation with the slider. 2.   14. A window lifter according to claim 12 characterized   in that the guide (2d) is obtained by folding during the conforma-   tion of the slide in height (2), 15. A window lifter device according to claim 11 characterized in that the guide (2d) is an insert in the shape of a tenon (21) engaging in a mortise (22) constituted by a light   made in one of the branches (2a) of the slide (2).   16. A window lifter device according to any one of the claims.   tions 13 to 15 characterized in that the free part of the guide (2d) oriented towards the bottom (10a) of the peripheral passage (10) or rail consists of a comb (2e) whose teeth correspond and   fits into that (18) resulting from the axial and long cut   tudinal end of the flexible rack so as to   secure the latter to the arm for training.   17. A window lifter device according to any one of the claims.   tions 7 or 9 characterized in that the ball joints (8) sliding at the lower part of the slide are arranged at the end of the arms (3 and 4) by means of a base (8a) obtained integrally with the ball joint (8), which base (8a) is provided with a   groove (8b) snapping elastically into the buttonholes   managed at the end of said arms (3 and 4).