EP0643187B1 - Slide of a window regular for motor vehicles - Google Patents

Description

The invention relates to a window-lift carriage for a motor vehicle, according to the preamble of claim 1.

Trolleys of this type are generally fixed to the associated window by means of auxiliary parts such as sheet metal supports, axes passing through the window, clamping screws, etc., which generate mounting difficulties and sometimes risks of play or deformations likely to cause noise, in particular, in the case of a door window, when the latter is closed.

We know for example, according to patent application DE 2836038, a carriage comprising, integrally, guide elements for the rail and vertical elastic lugs with lugs hooking in a hole of a sheet metal support integral with the window. For mounting on a vehicle, the carriage being previously placed on the fixed rail, the window with its support is lowered vertically until each lug clicks into the corresponding hole in the support. This operation is easy but it must be preceded by the assembly of the glass with the support, and the latter is likely, by play or by deformation, to allow slight transverse displacements of the glass, noise generators.

A window-lift carriage known by patent application EP0491320 comprises a bearing face for the lower edge of the window, from which protrude upwards, on either side of the window, a rigid portion for the guide of the rail and an elastic tab with lug hooking into a hole in the glass. This lug extending transversely to the window may come off during a transverse impact such as that due to the closing of a door equipped with the window.

The invention aims to overcome the aforementioned drawbacks by providing a carriage of the above type, with elastic vertical tab with lug hooking in a hole arranged in the glass near its lower edge, characterized in that the lug has at its end free a lower edge for its transverse maintenance on the glass.

• les dimensions et positions de l'ergot par rapport à celles du trou de la vitre sont telles qu'un jeu vertical entre le bord de la vitre et la face supérieure du chariot est supérieur ou égal à la hauteur du rebord de l'ergot et inférieur ou égal au jeu vertical entre ce dernier et le bord supérieur du trou.
• des languettes élastiques de rattrapage de jeu sont agencés au droit de la face supérieure de butée et/ou au droit d'une face latérale de guidage propre à coopérer avec le rail.

According to some important features of the invention:

• the dimensions and positions of the lug relative to those of the hole in the glass are such that a vertical clearance between the edge of the glass and the upper face of the carriage is greater than or equal to the height of the edge of the lug and less than or equal to the vertical clearance between the latter and the upper edge of the hole.
• elastic play take-up tabs are arranged to the right of the upper abutment face and / or to the right of a lateral guide face capable of cooperating with the rail.

• la figure 1 est une vue latérale simplifiée et partiellement découpée d'une porte de véhicule avec lève-vitre à chariot coulissant ;
• la figure 2 est une vue latérale à plus grande échelle du chariot, côté extérieur au véhicule ;
• la figure 3 est une vue de dessus du chariot, en coupe partielle suivant la ligne III-III de la figure 2, monté sur un rail ;
• la figure 4 est une vue de profil du chariot, en coupe suivant la ligne IV-IV de la figure 2, avec vitre associée en position d'assemblage ;
• et la figure 5 est une vue en perspective du chariot, côté intérieur au véhicule.

An embodiment of a window regulator with trolley according to the invention is described below, with reference to the accompanying drawings among which:

• Figure 1 is a simplified and partially cut away side view of a vehicle door with window regulator with sliding carriage;
• Figure 2 is an enlarged side view of the carriage, outside the vehicle side;
• Figure 3 is a top view of the carriage, in partial section along the line III-III of Figure 2, mounted on a rail;
• Figure 4 is a side view of the carriage, in section along the line IV-IV of Figure 2, with associated glass in the assembly position;
• and Figure 5 is a perspective view of the carriage, inside the vehicle.

We see in Figure 1 a vehicle door 1, in which a window 2 is capable of sliding vertically under the action of a window lifter comprising a carriage 3 fixed to the window and driven along a vertical rail 4 by a cable 5 actuated by a winch 6, the latter and the rail being integral with the door.

As can be seen more precisely in FIGS. 2 to 5, the carriage, molded from plastic, comprises a vertical rigid portion 6 projecting laterally from a trapezoidal plate 7 with rectilinear upper face 8. From this face 8, project vertically upwards d 'one side an upper part 6a of the rigid portion, and on the other side three legs 9, 10, 11, so that the assembly formed by these and the rigid part 6a is suitable for overlapping the bottom of the window 2, as shown in Figure 4, in the assembly position of the window on the carriage.

The central tab 10 has a lug 12 suitable for being engaged in a hole 13 arranged in the window 2 near its lower edge 14.

The tab 10 is elastic and flexible enough in the direction away from the rigid portion 6a so that the window can be engaged from top to bottom. To this end, the lug is delimited at its upper part by an inclined plane 15 such that its cooperation with the lower edge 14 of the glass, when it engages, causes the spacing, represented in 10a, of the tab 10, spacing maintained until, the edge 14 reaching the face 8 of the carriage, the lug 12 hooks into the hole 13 by elastic return of the tab 10.

The lug has at its free end a lower flange 16 to prevent relative transverse movement between the tab and the glass in the assembly position. So that this rim 16 can be engaged in the hole 13 of the glass, the positions and dimensions of the lug 12 and of the hole 13 of the glass provide a vertical clearance J1 between the lower edge 14 of the glass and the upper face 8 of the carriage, greater than or equal to the height h of the flange 16.

In addition, so that an upward movement of the carriage relative to the window, in particular during a maximum rise of the window regulator, does not risk striking the inclined plane 15 against the upper edge of the hole 13 and by following aside the tab 10 in the direction of its recess, a clearance J2 greater than or equal to the clearance j1 is provided between the lug 12 and the upper edge of the hole 13.

Elastic strips 17 are arranged at the ends of the face 8, capable of being in permanent support on the lower edge 14 of the glass and of bending downward when this edge abuts on the face 8, in particular during assembly. of the carriage and the glass by vertical engagement, from top to bottom, of the latter directly on the carriage previously mounted on the rail. This permanent support takes up play J1 by keeping the lower parts of the lug 12 and the hole 13 in contact.

The rigid vertical portion 6 has rectilinear faces 18, 19, 20 intended to slide on the rail 4, as well as a guide bar 21 covering part of one of the edges of the rail. Tabs 22 are arranged in the rectilinear face 20 so as to exert a permanent thrust on the rail 4 against the bar 21, thus making up for the sliding clearances between the rail and the carriage in a direction perpendicular to the glass.

In the rigid portion 6, two recesses 23 are formed which are capable of receiving two ends of the drive cable 5.

It emerges from the above description that the carriage is simple, compact, inexpensive, and allows particularly easy mounting of the window thanks to its assembly by direct snap-fastening on the carriage. In addition, the arrangement of the tongues and the locking of the elastic tab 10 in line with the hole 13 of the glass thanks to the flange 16 of the lug provide a connection between glass, carriage and rail avoiding any noise, in particular during closing. Door.

Claims (3)

1. A window winder carriage (3) for a motor vehicle, capable of sliding along a fixed vertical rail (4) under the action of driving means, and comprising on the one hand, for its assembly with a window (2), at least one vertical resilient clip (10) with a hooking lug (12) and on the other hand an upper stop face (8) for the lower edge (14) of the window (2) in the assembly position, from which face (8) there project upwards a rigid portion (6a) for guiding the rail, and the resilient clip (10) so as to overlap with the bottom of the window (2) in the assembly position where the lug (12) of the clip hooks into a hole (13) made in the window near its lower edge (14),
   characterised in that the lug (12) comprises at its free end a lower flange (16) for holding it transversely on the window (2).
2. A carriage according to Claim 1,
   characterised in that the dimensions and positions of the lug (12) relative to those of the hole (13) in the window are such that vertical play (j1) between the edge (14) of the window and the upper face (8) of the carriage is greater than or equal to the height (h) of the flange (16) of the lug and less than or equal to the vertical play (j2) between the latter and the upper edge of the hole (13).
3. A carriage according to one of Claims 1 and 2,
   characterised in that resilient tongues for taking up play (17,22) are arranged in line with the upper stop face (8) and/or in line with a lateral guiding face (20) suitable for cooperating with the rail (4).

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