FR2652546A1 - Window lifter for the side door of a motor vehicle - Google Patents

Abstract

Window lifter for the side door of a motor vehicle of the type with diverging arms including a fastening plate (1) on which there pivot two toothed members (11, 12) which mesh with one another and are rotationally connected to two arms (5, 10) for operating the window, characterised in that one of the arms is off-set with respect to the axis of the toothed member and that this arm is rotationally connected to the toothed member by a driving system allowing the toothed member and the arm to travel.

Description

The present invention relates to a window regulator for an automobile side door comprising a mounting plate on which two toothed members which engage one with the other are pivoted and are connected in rotation to two actuating arms of the window .

We know a window regulator of the previous type including FR-A-2349717. In some windows with diverging arms; the rollers mounted at the end of the arms move in an ellipse whose curve is defined so as to be as close as possible to the glass pane grate at the inclination of the axes of the actuating arms which carry these rollers.

This principle makes it possible to eliminate the constraints on the axes of articulation of the actuating arms which are no longer stressed in flexion.
The disadvantage of this window regulator is the flight ume it occupies in the box thickness (Y). Indeed its toothed drive member is not flat but slightly conical and is cumbersome in thickness during its trajectory.

The object of the present invention is to provide a revolver whose rollers of the actuating arms have a curved trajectory and whose toothed members are planar.
This design makes it possible to obtain a better meshing of the motor pinion with the main toothed organ and to reduce the bulk in the box in the direction of the thickness.

The window regulator according to the invention is characterized in that one of the actuating arms is pivotally mounted on a hinge axis whose axis is off-axis with respect to E axis of E the toothed member and that arm is connected in rotation to the toothed member by a drive system allowing movement of the toothed member and the arm.

According to one characteristic; the drive system is constituted by a pin integral with the toothed member and sliding in a bearing.

The invention will now be described in more detail with reference to an embodiment given by way of example and represented by the accompanying drawings, in which: FIG. 1 is an elevational view of the
window regulator according to the invention.

- Figure 2 is a top view of the window lifter
of figure t.

FIG. 3 is a plan view showing the
deflection of one of the following actuating arms
its opening or closing window.

- Figures 4 and 5 are views from the right and from
above the arm of Figure 3; showing the gain
in thickness.

Figure i shows a window lifter assembly with a platinum 1 which is fixed to the door box.

On this plate a pinion 2 drives a toothed member 3 of the sector type which is pivotally mounted on an axis 4 integral with the plate 1.

An actuating arm 5 has also mounted articulated on this axis 4 via a bearing 7. The axis of rotation 16 of the actuating arm is off-axis with respect to the axis of rotation 17 of the toothed member 3. This bearing has an inclined guide plane 7. This offset allows to give a curved path to the roller 6 mounted at the end of the actuating arm and ensuring the connection with the window.

 R the opposite end of this roller, the actuating arm 5 comprises a rectangular bearing 8 receiving a pin 9 integral with the toothed member 3 thereby rotating the actuating arm 5.

The second actuating arm 10 is motorized by the toothed end 11 of the toothed member 3; which also always causes on the same plane a toothed member 12 of the sector type. This toothed member 12 drives the actuating arm 1 by the pin 13 which slides in a rectangular bearing 14.

The actuating arm 10 has at its end a second roller 15 which moves in the same path as the roller 6.

The pins 9 and 15 each have sections that rub against opposite and opposite surfaces of the rectangular bearings 8 and 14 respectively.

The rollers 6 and 15 follow perfectly the curve of the window.

Figures 4 and 5 show the gain in thickness provided by the suppression of the large sector which was fixed on the actuating arm 5 and whose movement was along the axis A - A '<fig 4).

 With the new pion drive according to the invention, the displacement of the sector is indicated by B - B 'in FIG. 4. Thus, no overshoot occurs during the displacement of the drive arm, the gain in Y space being detected. d.

Claims (3)

R E V E N D I C A T IO N S 1) Window lift for automobile side door of the  type with diverging arms having a platinum  fastening (1), on which two  toothed members <1 (11 12) which meshing with one with  the other and are connected in rotation to two arms  actuating (5 10) the window,  characterized by the fact that one of the arms is off-axis with respect to the axis of E toothed member  and that this arm is connected in rotation to  toothed body by a drive system  authorizing the movement of the toothed organ and  of the arm. 2) Window lifter according to claim 1,  characterized by the fact that the system  of training is constituted by a pawn  integral with the toothed and sliding member in  a step. 30) Window lift according to claim 2,  characterized by the fact that the bearing is  rectangular.