DE19528467A1 - Vehicle door with cable operated window - has at least one fixing zone with spring elasticity running transversely to plane of windscreen - Google Patents

Abstract

The vehicle door has a base part carrying the cable operated window raising system. At least one of the door's fixing zones (e.g. 20) is made with spring elasticity at least transversely to the windscreen plane. These zones can lie between the guide rail (3) of the window raising system and the carrier plate (2) or inner sheet (1) of the door, or the frame structure. They should preferably be a one-piece component of the carrier plate, door inner sheet or frame structure.

Description

The invention relates to a vehicle door with a base part carrying a cable window lifter according to the preamble of claim 1 It ensures with simple means a tolerance compensation between the guide means of the window pane and the Mechanics of the cable window lifter and thus reduces the friction and wear of the Adjustment system.

JP-B2 3-67187 is a conventional cable window lifter with a guide rail known, which is essentially rigid via an upper and a lower fastening web is connected to the inner door panel. There is a glider with the guide rail (Driver) positively and slidably engaged and is with the lower end of the Window pane firmly connected. A crank drive guides the adjustment forces over a  Rope loop to the glider. The window pane is guided in profiles that are in are fastened to the door and embrace the side edges of the window pane.

Due to manufacturing tolerances, mechanical stresses occur regularly cause stiffness in the system due to the increased friction. Of the Tolerance compensation can now be done in the system (door, window lifter) Elasticities occur, for example due to elastic deformation of the inner door panel. This Movements often become tangible or visible and lead for the vehicle user occasionally even noise. In addition to increased wear, the Loss of efficiency often involves the use of increased engine power, a stronger rope or a generally more stable design, which leads to increased weight and additional costs.

A possibility of tolerance compensation in the Y direction (across the disc plane) is disclosed JP-A 4-27093. Between the slider, which is connected to the window pane, and the guide rail of the cable window lifter is elastic in the Y direction Storage. Between sliding lips, which are directly on the sliding surfaces of the guide rail lie on, rubber elements or the like are inserted so that these when necessary be deformed and allow a compensation path. The disadvantage is the complex Structure of the glider and its complicated assembly.

From US-PS 4,730,414 is a cable window lifter with an additional adjustment mechanism between the slider mounted on the guide rail and the one with the Known lower edge connected lifting rail. Near the top The additional adjustment mechanism presses the closed position of the window pane Bottom edge of the pane facing outwards, with the window pane simultaneously facing inwards tends. This ensures a good seal of the window pane, both in the area of Door shaft as well as in the area of the upper closing edge. However, it is disadvantageous the high technical effort and the large construction volume, which the additional device required.

In JP-A 80-233 285 a cable window lifter is described, the guide rail in Parapet area of the door body is locked by a fit form fit. in the lower area of the guide rail is a second attachment point, the Guide rail gives total support. This version is also very rigid. It exists the possibility of compensation via the lower fastening point in the Y direction to bring about at least partially, the form-fitting attachment of the upper  End of the guide rail acts as a pivot bearing, however, the setting for each The door is made separately by lowering the window pane.

The lack of flexibility of the window lift systems also makes an adjustment of the Window pane in its uppermost position (closed position) required. So they have to Mounting openings for connecting the window pane to the window regulator in the upper one Area of the door, mostly in the door sill, to be arranged (see DE-A 1 33 11 599). This not only leads to a weakening of the mechanical stability of the vehicle door, it also complicates the creation of complex pre-assembled units, such as one Door module consisting of a support plate, window regulator, lock and others as well a door trim panel pre-assembled on the back.

The invention has for its object to a vehicle door with a cable window lifter develop that guarantees an automatic tolerance compensation with simple means, in order to largely prevent tension even in a comparatively stiff door construction avoid. Nevertheless, the invention should be adaptable to a wide variety of door constructions be.

According to the invention the task is characterized by the characteristic features of Claim 1 solved. The subclaims give preferred variants of the invention again.

Accordingly, at least one of the fastening areas points between the guide rail the cable window lifter and the base part (carrier plate or door inner panel or Door frame structure) to which the guide rail is attached, such resilient Properties that the guide rail transversely to the plane of the window, so in Y- Direction, compensatory movements can perform.

According to a preferred variant of the invention, the resilient Fastening areas integral part of the base part supporting the window regulator, So the door inner panel, the door frame structure or a support plate, or they are direct molded onto the guide rail. Resilient material exhibitions from the sheet of the The base part or the guide rail provide the connection between the adjustment mechanism and the door body. If the material of the base part or the guide rail is not be suitable for forming the fastening areas according to the invention, so separate resilient parts are also used. Basically, they can Fastening areas can be designed as leaf springs or the like. Their ends  are either on the one hand with the base part and on the other hand with the guide rail in Connection, or both ends of the leaf springs end in the material of one part (for Example of the base part) while a central area forms a curvature in the Y direction, to which the other part (for example the guide rail) is attached.

Unless the upper and lower fastening area of the guide rail are designed to be resilient, at least the upper fastening area should be in Y- Have directional elastic properties, as there are tolerance deviations make it particularly noticeable and could lead to malfunctions.

In addition, the attachment points to their elasticity in the Y direction additionally be designed to be resilient in the direction of travel (in the X direction). That’s it possible to prevent the window pane from tilting and always exactly along it to lead an intended withdrawal line.

Since the vehicle door according to the invention automatically compensates for the inevitable Manufacturing tolerances ensures, the disc adjustment no longer, as usual, in the upper position (closed position) of the window pane. It is now possible to Mounting openings to establish the connection between the window regulator and the Window pane to be provided in the lower door area. It doesn't just make one Avoid weakened the stability of the door structure in the parapet area, it is now also possible at least an upper part before installing the window pane pre-assemble the inner door panel. The greater complexity of pre-assembled and Pre-testable units come especially when using the so-called Door module technology is positive, with a carrier plate not just a window lifter, a door lock and possibly other attachments, but on the other side at least parts of the door lining are pre-assembled. When using this The principle of construction is the lower edge of the inner door panel, leaving the necessary assembly openings pulled up to the lower edge of the support plate and associated with this. This increases the overall stability of the door.

The invention is described below with the aid of exemplary embodiments and those shown Figures explained in more detail. Show it:

Fig. 1 is a schematic representation of the vehicle door according to the invention with a double-strand cable window lifter attached to the door inner panel;

Fig. 2 is schematic representation of the vehicle door according to the invention with a pre-assembled on a support plate double-strand cable window regulator;

Fig. 3 is schematic representation of a carrier plate with upper spring-elastic attachment portions and lower rigid attachment areas;

Attachment portion 4a cross-section produced by a spring-elastic, after the punch-embossing technique.

FIG. 4b plan view of the attachment portion according to Fig. 4a;

Fig. 5 is cross section of a separate fastening element by a resilient fastening area using;

Fig. 6 guide rail of a cable window lifter with integrated spring-elastic fastening areas;

Figure 7a schematic illustration of a door frame structure having frameless window pane.

FIG. 7b shows schematic view of the resilient attachment portions between the frame structure and guide rail of a cable window lifter;

FIG. 8a schematic representation of a door frame structure with window frames and side rails to the disc guide;

FIG. 8b shows schematic representation of the resilient mounting portions between the transverse webs and the guide rail of a cable window lifter;

Fig. 9 is a schematic perspective view of a vehicle door with a cable window preassembled on a carrier plate and an upper, if pre-assembled upper interior trim part and mounting openings in the lower door area.

The exemplary embodiment shown in FIG. 1 relates to a vehicle door with a closed inner door panel 1 and a removable outer door panel 5 . This means that assembly or repair work in the interior of the door can only be carried out after the outer door panel 5 has been removed. In the inner door panel 1 spring-elastic fastening areas 10 are integrated, which were generated by means of a stamping and embossing process. Spring tongues 12 are formed from the material of the door inner panel 1 , the free ends of which are assigned to the guide rails 3 of a double-strand cable window lifter. This creates punch openings 11 . Since the longitudinal axis of the spring tongues 12 runs horizontally, they are able not only to compensate for tolerances in the Y direction (that is to say transversely to the plane of the disk) but also in the X direction (in the direction of travel). Additional, complex devices for tolerance compensation can therefore be dispensed with.

The exemplary embodiment of FIG. 2 uses resilient fastening regions 20 with spring tongues 22 in the manner in which they were already described in connection with FIG. 1. However, the schematically indicated double-strand cable window lifter with its guide rails 3 , the cable deflection rollers 34 and the cable 33 is preassembled on a carrier plate 2 via the fastening areas 20 . It covers a large cutout 100 in the inner door panel 1 '. In the area of the peripheral edges, a releasable connection between the door inner panel 1 'and the carrier plate 2 is generally made, for example by screws. If the carrier plate is also intended to create a hermetic seal between the external wet space and the internal dry space of the vehicle door, then a sealing of the punched holes 21 is also necessary. This can be done, for example, using a self-adhesive film.

The construction principle described above with a support plate 2 (so-called door module), which covers a large area in the inner door panel 1 ', generally leads to stiffening of the door. The reduced flexibility can be compensated for particularly advantageously by the resilient fastening regions 20 according to the invention.

Fig. 3 shows a carrier plate 2 'with upper resilient fastening areas 20 ' and largely rigid lower fastening areas 23 , wherein the connection between the carrier plate 2 'and the guide rails 3 is made by a mounting bracket 230 . The spring tongues 22 'of the upper fastening areas 20 ' are in turn an integral part of the carrier plate 2 'and attached with their free ends to the guide rail 3 . Screws and rivets are particularly suitable for fastening. But welded connections can also be used.

The longitudinal axis of the spring tongue 22 'runs vertically. Because of the lower rigid mounting area 23 , a resilient compensating movement can only be carried out in the Y direction in the upper mounting area 20 , with a tilting movement of the guide rail 3 around the mounting bracket 230 . In many cases and in particular with an exclusive guidance of the window pane through the guide rails 3 of the cable window lifter, it will be sufficient to form only the upper fastening region 20 'in a resilient manner, since tolerance deviations are hardly noticeable when the window pane is largely lowered. If, however, the window pane is guided in its entire adjustment range by lateral guide profiles which encompass the lateral (vertical) edges of the window pane, then the lower fastening areas 23 should also be designed to be resilient. Otherwise, considerable tension in the window lift system and the door itself should be expected.

FIGS. 4a and 4b show two views of a further variant of a fastening region resiliently formed 10 '', 20 '', 30 '', as it could be for the embodiments according to FIGS. 1, 2, 3 and 6 are used. Accordingly, two parallel slot-shaped openings 11 '', 21 '', 31 '' are incorporated in the fastening areas 10 '', 20 '', 30 '', so that an intermediate web 12 '', 22 '', 32 '' is formed. For example, a pot-shaped embossing of the central part of the web 12 '', 22 '', 32 '' creates a (raised) attachment point from the environment. This fastening area 10 '', 20 '', 30 '' compensates for tolerances in the Y direction.

At this point, however, it should be pointed out that all fastening areas according to the invention also compensate for tolerances which are caused by an angular offset of the guide rail 3 , 3 ', that is to say in a rotation about the Z axis.

The fastening point shown in FIG. 5 shows a separate spring element 24 , the edge regions of which are meandering. Its free ends are connected to the inner door panel 1 or a support plate 2 , while an elevated central region of the spring element 24 is attached to the guide rail 3 of the window regulator 3 .

Of course, according to this invention it is also possible to integrate the resilient fastening areas into the guide rails of the cable window lifters. Fig. 6 shows an example of a guide rail 3 'with two resilient fastening areas 30 ', which are formed in an analogous manner to the fastening areas 20 'of Fig. 3. Your spring tongues 32 'are oriented in opposite directions. However, it is also possible to align the spring tongues 30 'in the same direction, for example in order to provide an additional elasticity acting in the Z direction, which is able to dissipate dynamic energies such as those reached when the lower stop position, the upper closed position of the window pane or when Pinching a hard object may occur. This would relieve the mechanical system and reduce wear. The variant described in FIG. 5 also has the properties described above.

The resilient fastening areas according to the invention can also be used in connection with door frame constructions as a base part, on which all other door components are mounted. A door frame construction for a frameless window pane 6 is shown in FIGS. 7a and 7b. On a spar forming the door parapet 34 , vertically extending spars 41 a, 41 b are attached, the lower ends of which are connected by a horizontal spar 42 . About the attachment areas 40 , the guide rails 3 are attached to the vertical bars 41 a, 41 b. The guidance of the window pane 6 is carried out exclusively by the rails 3 , on which (not shown) drivers are slidably supported. The window pane 6 is fastened to these drivers.

The variant shown in Fig. 8a and 8b shows a door frame construction with vertical bars 41 'a, 41 ' b, in which the side edges of the window pane 6 are guided. The spars 41 'a, 41 ' b are connected across the vertical spars 42 'a, 42 ' b and the door rail 43 , the spar 41 'b forming part of the window frame 44 '. On the vertical bars 42 'a, 42 ' b, the guide rails 3 of the cable window lifter via spring-elastic fastening areas 40 '.

Depending on requirements, the fastening area can be integrated into the frame 4 , 4 'or into the guide rail 3 for the described door frame constructions of FIGS. 7 and 8. The use of a separate spring element, for example according to FIG. 5, is also possible.

A particularly advantageous embodiment is shown in FIG. 9. Accordingly, a carrier plate 2 '' closes a large cutout in the inner door panel 1 '', with mounting openings 110 being left near the door base in the region of the guide rails 3 of the cable window lifter. The connection between window lifter and window pane 6 takes place through these openings 110 . In general, this connection must be made in the closed position of the window pane 6 in order to enable an adjustment to compensate for play.

Because of the use of the resilient fastening areas according to the invention, this is no longer necessary; the window pane can be attached in a lower position. Thus, a trim part 7 a with electrical switches 71 and the inner door handle 72 can be preassembled above the assembly openings 110 . This increases the degree of integration of the door module and the number of testable technical units and assemblies.

With the assembly of the lower trim part 7 b of the door interior trim, the assembly openings 110 are sealed. This is ensured by circumferential seals 70 , which are provided on the inner door panel 1 '' side of the trim part 7 b.

In order to achieve the highest possible stability of the vehicle door, the central region 13 of the inner door panel 1 '' between the mounting openings 110 is pulled up so far that it forms an overlap region 120 with the adjacent region 25 of the carrier plate 2 ''. About this overlap area 120 between the support plate 2 '' and the inner door panel 1 '' by means of screws or rivets a fixed connection.

Reference list

1 inner door panel
1 ′ door panel
1 ′ ′ inner door panel
10 spring-elastic fastening area
11 opening, punch opening
11 '' opening, punch opening
12 spring tongue
12 '' spring bar
13 Area of the inner door panel
100 cut-out in the inner door panel
110 assembly opening
120 overlap area
2 carrier plate
2 ′ carrier plate
2 ′ ′ carrier plate
20 spring-elastic fastening area
20 ′ elastic mounting area
20 '' elastic mounting area
21 opening, punch opening
21 ′ opening, punch opening
21 '' opening, punch opening
22 spring tongue
22 ′ spring tongue
22 '' spring bar
23 rigid mounting area
230 mounting bracket
24 separate spring element
25 area of the carrier plate
3 guide rails
3 ′ guide rail
30 ' resilient mounting area
31 ′ opening, punch opening
32 ′ spring tongue
33 rope
34 pulley
4 door frame structure
4 ′ door frame structure
40 spring-elastic fastening area
40 ′ resilient fastening area
41 vertical spar
41 a vertical spar
41 b vertical spar
41 ′ a vertical spar
41 ′ b vertical spar
42 horizontal spar
42 ′ a horizontal spar
42 ′ b horizontal spar
43 door sill
43 ′ door sill
44 ′ window frame
5 outer door panel
6 window pane
7 a upper door interior trim part
7 b lower interior door panel
70 seal
71 switch block
72 inner door handle

Claims (13)

1. vehicle door,

• - either with a large cut-out in the inner door panel, which is at least partially covered by a carrier plate,
• - or with a removable outer door panel which can be connected to a door body having an inner door panel,
• - or with a lattice-shaped frame structure,

wherein the carrier plate or the door inner panel or the frame structure is connected to the guide rail of a cable window lifter, in particular a double-strand cable window lifter, via fastening areas, and using openings for mounting or dismounting the window lifter from the side of the door inner plate,
characterized in that at least one of the fastening areas ( 10 , 20 , 20 ', 20 '', 30 ', 40 , 40 ') between the guide rail ( 3 , 3 ') of the cable lifter and the carrier plate ( 2 , 2 ') or the inner door panel ( 1 , 1 ', 1 '') or the frame structure ( 4 , 4 ') is designed to be resilient at least transversely to the pane plane (in the Y direction). 2. Vehicle door according to claim 1, characterized in that the resilient fastening areas ( 10 , 20 , 20 ', 20 '', 30 ', 40 , 40 ') integral part of the support plate ( 2 , 2 ') or the door inner panel ( 1 , 1 ', 1 '') or the frame structure ( 4 , 4 '). 3. Vehicle door according to claim 1, characterized in that the resilient fastening areas ( 30 ') are an integral part of the guide rail ( 3 '). 4. Vehicle door according to claim 1, characterized in that the resilient fastening areas are designed as separate parts ( 24 ). 5. Vehicle door according to at least one of claims 1 to 4, characterized in that the resilient fastening areas ( 10 , 20 , 20 ', 30 ', 40 , 40 ') are designed as leaf springs, the ends of which are on the one hand with the guide rail ( 3 , 3 ') and the other with the support plate ( 2 , 2 ') or the inner door panel ( 1 , 1 ', 1 '') or the frame structure ( 4 , 4 ') in connection. 6. Vehicle door according to at least one of the preceding claims, characterized in that each guide rail ( 3 ) with an upper spring-elastic fastening area ( 20 ') and a lower largely rigid fastening area ( 23 ) is connected. 7. Vehicle door according to at least one of claims 1 to 5, characterized characterized in that both the lower mounting area and the upper Fastening area are designed to be resilient. 8. Vehicle door according to at least one of the preceding claims, characterized in that the fastening point ( 10 , 20 ) is additionally designed to be resilient in the direction of travel (in the X direction). 9. Vehicle door according to claim 1, characterized in that the mounting openings ( 110 ) are arranged in the lower door area. 10. Vehicle door according to claims 1 and 9, characterized in that when using a design principle with a large cutout ( 100 ) in the door inner panel ( 1 '') and a closing plate closing this cutout ( 2 '') an upper part ( 7 a) of the door interior trim is preassembled on the carrier plate ( 2 '') even before it is installed in the door, this preassembled unit having the controls ( 71 , 72 ) for the cable window lifter or the door lock, and that the window pane ( 6 ) with the window lifter can be installed or removed through the openings ( 110 ) in the lower door area. 11. Vehicle door according to claims 1, 9 and 10, characterized in that the carrier plate ( 2 '') lies with its upper and lateral edge sealingly against the inner door panel ( 1 '') and that the edge of the mounting opening ( 110 ) by a circumferential seal ( 70 ) of the lower part ( 7 b) of the door lining is sealed. 12. Vehicle door according to claims 1, 9 and 10, characterized in that the lower region ( 13 ) of the door inner panel ( 1 '') laterally the mounting openings ( 110 ) up to the lower edge of the carrier plate ( 2 '') and connected to it is.