DE102007027774A1 - Drive unit for adjuster for adjusting adjustment part of motor vehicle, has fastener adjustable in position relative to additional fasteners with movement component parallel to extension plane to fix drive unit on mounting plate - Google Patents

Abstract

The drive unit (2) has a housing (21, 22) arranged on a mounting plate (3) on a motor vehicle through an adjustable fastener (221). The fastener is arranged on the housing and the mounting plate extends in an extension plane (E). The fastener is adjustable in a position relative to additional fasteners (222, 223) with a movement component parallel to the extension plane of the mounting plate to fix the drive unit on the mounting plate. The drive unit is fixable positively on the mounting plate by an adjustment of the fastener of the housing.

Description

The The invention relates to a drive unit for an adjusting device for adjusting an adjustment of a motor vehicle after the Preamble of claim 1.

A Such drive unit for an adjustment has a housing over on the housing arranged fasteners on a substantially in an extension plane extending, areal trained Support plate is arranged on the motor vehicle. The carrier plate can for example, by a door inner panel of a vehicle door be formed and the drive unit, such as a drive a power window, as well as other units of the vehicle door wear. Just as well, the carrier plate part of a module carrier a vehicle door, where the different units the vehicle door are arranged and the one preassembled modular unit for mounting on the vehicle door forms.

At one of the DE 196 19 087 C2 known drive unit for an adjustment in the form of a window regulator for adjusting a window of a vehicle door, the housing of the drive unit is fastened via fastening means designed as a pin to the support plate of the vehicle door by the pins pass through the support plate in through holes and thus establish a connection of the housing with the support plate , In order to achieve a sufficiently firm connection of the housing to the carrier plate, a plurality of pins are provided which extend perpendicular to the plane of extension of the support plate through the support plate and two housing halves of the housing interconnect such that the support plate is clamped between the housing halves.

The Drive unit is used to adjust an adjustment of a Motor vehicle, in particular as a window regulator for adjusting a Window of a vehicle door. During operation of the adjusting exercises the drive unit has an adjusting force on the adjusting part and, so that the adjusting force can be transmitted, be set appropriately on the vehicle. This also applies in particular to a noise during operation of the drive unit to avoid, in particular with a reversal of direction by the Drive unit generated adjusting force and consequently changing, on the drive unit retroactive forces and Moments.

task The present invention is a drive unit for an adjusting device of a motor vehicle available to ask, which can be easily arranged on the motor vehicle and the one far most tight fit of the drive unit on the vehicle, in particular to reduce noise in operation, possible.

These The object is achieved by an object having the features of the claim 1 solved.

According to the invention provided in a drive unit of the above type, that at least one of the fasteners in its relative position to at least one further attachment means with at least one Movement component parallel to the plane of extension of the carrier plate is adjustable to the drive unit on the carrier plate set.

The Invention is based on the knowledge that, to the best possible To achieve tight fit of the drive unit to the carrier plate, an adjustability of the fastening means relative to each other and be provided relative to the housing of the drive unit can, by an adjustment of the fastener at least with a component of movement parallel to the plane of extension of Support plate a clamping of the housing relative to reach the carrier plate. In that at least one Fixing means adjustable parallel to the carrier plate is and for fixing the drive unit to the support plate and for clamping the housing to the support plate In its position is changed, can a form-fit the fastening means are achieved with the carrier plate, so that the housing is best possible and a noise by movement of the housing relative to the carrier plate, for example, in a direction reversal the adjusting force generated by the drive unit as far as possible is suppressed.

among them, that the fastening means with at least one movement component is adjustable parallel to the plane of extent, is present understand that the adjustability of the fastener is not exclusively parallel to the plane of extension of the carrier plate must be given, but at the same time an adjustability can be provided perpendicular to the support plate. Essential In this case, that the fastening means at least parallel be adjusted to the extension plane of the support plate can cause a distortion of the housing relative to the carrier plate to reach in the plane of extension of the carrier plate.

In a preferred embodiment, the fastening means are designed as pins which pass through the carrier plate for fastening the drive unit on the motor vehicle, in particular in a direction perpendicular to the plane of extension of the carrier plate, wherein at least one of the pins with at least one movement component parallel to Extension plane of the support plate is adjustable.

Of the the fastener performing, adjustable pin can, for example be designed as Verdrehdom relative to the housing the drive unit is rotatable. The Verdrehdom is through a Rotary movement adjusted, whereby by the rotational movement, the position the pin is changed to each other and the housing thus being clamped to the support plate for fixing.

To For this purpose, the Verdrehdom one in a receptacle of the housing arranged head and having a shaft connected to the head, wherein the head in the receptacle of the housing about a first Rotatable axis and the shaft eccentric to the first axis of rotation is arranged. The head acts as a lever that causes a twist of the shaft the Verdrehdoms in a displacement of the shaft relative to the housing implements. In other words, at a twist of the shaft through the eccentricity of the shaft to the head of the twisting dome adjusted the position of the shaft on the housing. To this Way, the position of the shaft, the carrier plate engages, relative to the other fastening means, for example as may be formed on the housing fixed pin changed and so a strain of the housing on the support plate be achieved.

At least a fastener is disposed on the housing and relative adjustable to the housing. The case and the on the housing arranged, adjustable fastening means can be made by plastic injection molding made of so-called two-component technology (2K technology) be, with the adjustable fastener and the housing from different, not in the injection molding together connecting materials are made, so that the housing and the fastener can be injection molded together and the fastener after injection molding to the housing is adjustable. For example, if the fastener is relative to Housing rotatable Verdrehdom formed, the Housing and torsion dome in 2K technology together manufactured, so that the torsion dome arranged on the housing, but at the same time rotatable relative to the housing. One The advantage of using 2K technology is its simplicity, being through the use of different materials for the housing and for Verdrehdom the housing and the Verdrehdom can be produced in one step and a subsequent mounting of the twisting dome to the housing can be omitted. Of course, it is also conceivable to manufacture the Verdrehdom separately as a separate component and only retrofitted to the housing.

In an embodiment of the drive unit, the housing two housing halves on, at different Side of the support plate are arranged. The fasteners can on the one, first half of the housing be arranged and through the carrier plate into the other, second housing half engage, so that the carrier plate between the two housing halves comes to rest and clamping the housing in this way is held on the support plate.

to Connection of the two housing halves can additional screw be provided by the second housing half in the fastening means engage the first housing half. For example can the screw connections by self-tapping Screws be realized from the side of the second half of the housing in the fastening means on the first housing half be screwed. By screwing in the self-tapping Screw into the adjustable fastener on the first half of the housing can then be effected simultaneously that the adjustable, for example designed as Verdrehdom fasteners in the desired Way is adjusted so that the drive unit on the support plate is determined by the housing to the support plate is strained. The advantage here is that a separate step to adjust the adjustable fastener is not required. The adjustment of the fastener is rather automatic when attaching the screw for connecting the first housing half with the second half of the housing.

The Drive unit may be part of an adjusting device forming Be a cable window lifter and a cable drum to press a traction means, which enclosed in the housing is. By fixing the drive unit to the carrier plate by means of the adjustable fastening means and the tension the housing relative to the carrier plate is then achieved that even with a reversal of direction when driving the Cable drum and resulting restoring torques the housing does not move relative to the carrier plate can, allowing a noise during operation of the drive unit at least reduced.

Of the The idea underlying the invention is based on the following the embodiments shown in the figures closer be explained. Show it:

1 a schematic representation of a cable window lifter for adjusting a window pane of a vehicle door;

2 a perspective parts explosion representation of a drive unit on the support plate of a vehicle door;

3 a schematic plan view of the cable drive housing performing housing half of the housing of the drive unit;

4a a sectional view taken along the line II according to 3 showing a fixed pin as a fastening means for connecting the housing halves of the housing of the drive unit;

4b a sectional view taken along the line II-II according to 3 depicting a fastening means designed as a torsion dome for connecting the housing halves;

5 a detailed view of the twisting dome according to 4b on the cable drive housing;

6 a further detail view of the twisting dome on the cable drive housing in the pin receiving the gear housing and

7 a schematic representation for explaining the kinematics of the twisting dome on the cable drive housing.

1 shows a schematic representation of an adjusting device 1 in the form of a cable window lifter, attached to the carrier plate 3 a vehicle door is arranged and is coupled for adjustment with a window pane. The trained as a cable window lifter adjustment 1 has a drive unit 2 on that with a traction device 15 coupled in the form of a rope. About the traction means 15 that over deflections 11 . 12 along the carrier plate 3 extends and forms a closed loop of rope, an adjusting force from the drive unit 2 on the adjustment in the form of the window (in 1 not shown). For this purpose, the pull rope 15 with a driver 14 connected, which carries the window pane and along a guide rail 13 slidable on the carrier plate 3 is stored.

In operation drives the drive unit 2 in a conventional manner via a in a cable drive housing 22 stored cable drum the traction means 15 and thereby displaces the driver 14 along the guide rail 13 , In this way, the adjusting force is introduced into the window pane and the window pane is moved in the vertical direction to open or close the window opening of the vehicle door.

In the 1 illustrated carrier plate 3 may be formed for example by the door inner panel of the vehicle door, on which the adjusting device 1 is arranged. Likewise, the carrier plate 3 also be part of a door module, which serves to accommodate the aggregates of the vehicle door and can be mounted as a unit on the vehicle door.

The drive unit 2 generates the adjusting force for adjusting the adjustment of the window representing window. In the transmission of the adjusting force on the traction means 15 on the window pane experiences the drive unit 2 in turn forces and moments caused by the arrangement of the drive unit 2 on the carrier plate 3 have to be caught. It is necessary that the drive unit 2 as free of play on the support plate 3 is attached, so especially in a direction reversal in the traction means 15 introduced adjusting it to no movement of the drive unit 2 relative to the carrier plate 3 and associated with a noise during operation of the drive unit 2 comes.

The drive unit 2 is over tenon 221 - 223 with the carrier plate 3 connected. As in the partial explosion representation according to 2 is shown, the pins are 221 - 223 on the cable drive housing 22 the drive unit 2 arranged and extend from the cable drive housing 22 in the direction of the carrier plate 3 that they have through holes 31 - 33 in the carrier plate 3 reach through and into pin shots 211 - 213 in a gearbox 21 as a dwelling for an electric motor and an adjusting gear intervene. When assembled, the pins engage 221 - 223 through the carrier plate 3 through in the pin shots 211 - 213 one, leaving the drive unit 2 with the housing halves 21 . 22 clamped to the carrier plate 3 is held.

The in the gearbox 21 arranged electric motor generates the adjusting force and transmits this also in the transmission housing 21 arranged gear and an output-side drive shaft 214 on one in the cable drive housing 22 arranged rope drum 23 (see, for example 4a and 4b ). About the rope drum 23 becomes the traction device 15 (please refer 1 ) and over the driver 14 the window is adjusted.

By means of the fastening means forming pin 221 - 223 is the drive unit 2 perpendicular to extending in the plane E extension support plate 3 largely determined. To the drive unit 2 It is also necessary to set azimuthally in the plane E, that the cones 221 - 223 free of play on the carrier plate 3 being held.

To the drive unit 2 keep as free of play and best possible on the support plate 3 to set is, as in 3 is indicated schematically a cone 221 so adjustable on the cable drive housing 22 arranged that its position in the plane E can be changed. The pin 221 is designed for this purpose as Verdrehdom rotatably on the cable drive housing 22 is arranged and a head 42 and a shaft 41 having. The head 42 is rotatable about the rotation axis M2 on the cable drive housing 22 arranged and carries the shaft 41 that is eccentric to the head 42 is arranged. Will the pin 221 relative to the cable drive housing 22 twisted about the rotation axis M2, so the position of the shaft changes 41 in the plane E and the location of the cones 221 - 223 relative to each other such that the cable drive housing 22 at the through holes 31 - 33 the carrier plate 3 can be clamped supporting.

Details of a fixed pin 222 and an adjustable pin 221 are in 4a and 4b in sectional drawings along the lines II and II-II according to 3 presented comparatively. The fixed pin 222 according to 4a extends from the cable drive housing 22 through the through hole 32 through in a pin receptacle 212 on the gearbox 21 , For connecting the gearbox housing 21 with the pin 222 is a self-tapping screw 24 provided from the side of the gearbox 21 in the cones 222 is screwed in to the carrier plate 3 clamped between the gearbox 21 and the cable drive housing 22 to keep.

As stated above, the transmission housing is used 21 for receiving a motor and a gearbox for generating an adjusting force, via the drive shaft 214 (please refer 2 ) on the rope drum 23 is transferred and the cable drum 23 for driving the traction means 15 put in a rotary motion.

In contrast to the fixed pin 222 is the pin 221 so adjustable that he, as in 4b shown in the cable drive housing 22 can be twisted. The pin 221 is upside down 42 in the recording 44 in the cable drive housing 22 rotatably mounted and extends through an opening 43 and the through hole 31 in the carrier plate 3 in a pin socket 211 on the gearbox 22 , For connecting the gearbox housing 21 with the pin 221 also becomes a self-tapping screw 24 used from the side of the gearbox 21 in the cones 221 is screwed in to the carrier plate 3 between the gearbox 21 and the cable drive housing 22 pinch.

By screwing in the self-tapping screw 24 in the adjustable pin 221 is at the same time causing the shaft 41 the adjustable pin 221 around the axis of rotation M1 passing through the through hole 31 in the carrier plate 3 is set, twisted. Because of the shaft 41 , as in 3 and in the schematic representation according to 7 is shown, eccentric to the head 42 is arranged, causes the twisting movement (twisting movement V1) of the shaft 41 about the rotation axis M1 also a twisting movement of the head 42 in the recording 44 of the gearbox 22 , The head 42 acts as a lever, the twisting V1 of the shaft 41 in a movement of the transmission housing 22 parallel to the plane E of the support plate 3 translated and thereby the transmission housing 22 and thus the entire drive unit 2 relative to the carrier plate 3 clamped, with the pins 221 - 223 at the through holes 31 - 33 support.

Due to the fact that the adjustment of the adjustable pin 221 together with the self-tapping screw 24 takes place, is a separate step to adjust the pin 221 and for tensioning the cable drive housing 22 avoided. The definition of the drive unit 2 on the carrier plate 3 rather happens simultaneously with the screwing of the screw 24 , Of course, can also be provided, the adjustable pin 221 nachzuspannen in a subsequent step to a possible backlash-free arrangement of the cable drive housing 22 and thus the drive unit 2 on the carrier plate 3 to reach.

As in 4a and 4b is shown, the pins are 221 - 223 each with self-tapping screws 24 on the gearbox 21 fixed. In this case, a mounting sequence is observed, in which in a first step, the screw 24 in the adjustable pin 221 is screwed to the drive unit parallel to the plane E azimuthal to the support plate 3 set. Only below are the screws 24 in the cones 222 . 223 screwed in to the housing halves 21 . 22 clamped together to connect.

Details of the adjustable pin 221 are in 5 and 6 shown. In an advantageous embodiment of the adjustable pin 221 designed in two-component technology (2K technology) and together with the cable drive housing 22 injection molded from plastic. The pin 221 and the cable drive housing 22 are made of different materials that do not bond together during injection molding, thus ensuring that the pin 221 over the head 42 in the recording 44 of the cable drive housing 22 can be twisted. For example, the pin made of plastic PBT GF 20 and the cable drive housing 22 made of plastic PP LGF 30 be formed, which are common in vehicle construction plastic materials and do not bond together during injection molding. Other materials for the journal 221 and the cable drive housing 22 are conceivable and readily usable, wherein it is essential that materials are used which do not make a connection during injection molding, to the rotatable mounting of the pin 221 in the cable drive housing 22 to reach.

Advantage of using the 2K technology is that pin 221 and cable drive housing 22 can be easily produced in one step by means of injection molding. Of course, however, is also conceivable, the pin 221 as a separate component and separately on the cable drive housing 22 in a subsequent step to assemble.

A detail of the kinematics of the adjustable pin 221 provides 7 , The shaft 41 is with its axis M1 eccentric with distance A to the head 42 arranged with the axis M2. Will the shaft 41 rotated according to the twisting movement V1 about the axis M1, this results in a twisting movement of the head 41 in the recording 44 on the cable drive housing 22 , whereby the axis M2 of the head moves about the axis M1. By that, the head 42 rotatable in the receptacle 44 on the cable drive housing 22 is arranged, the twisting V2 of the head 42 in a lateral displacement movement of the cable drive housing 22 implemented by the cable drive housing 22 on the carrier plate 3 is strained.

In the schematic representation according to 3 is only the pin 221 adjustable, while the other pins 222 . 223 are formed fixed. It is also conceivable to perform more than one pin adjustable, for example, two pins or all three pins, wherein for a sufficient determination of the drive unit 2 on the carrier plate 3 It is usually sufficient, just a pin 221 adjustable to train.

Of the The idea underlying the invention is not based on the preceding limited embodiments described. In particular, the invention is not only in rope window lifters using a cable drum for transmitting a torque applicable, but, for example, in Kreuzarmfensterhebern in the same Be used manner. Equally, it is also an assignment conceivable with completely different kind of adjusting devices, for example, for adjusting other cover elements such as sunroofs or Trunk covers or for adjusting vehicle seats or other vehicle parts where it is to a maximum extent the drive unit arrives at the vehicle.

1

adjustment

11 12

redirection

13

guide rail

14

takeaway

15

traction means

2

drive unit

21

gearbox

211-213

pin receiver

214

drive shaft

22

Cable drive housing

23

cable drum

24

screw

221

Adjustable spigot

222 223

spigot

3

support plate

31-34

Through Hole

41

shaft

42

head

43

opening

44

admission

A

distance

D

axis of rotation

e

extension plane

M1, M2

center

V1, V2

twisting

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 19619087 C2 [0003]

Claims (13)

Drive unit for an adjusting device for adjusting an adjustment part of a motor vehicle, having a housing which is arranged on fastening means arranged on the housing on a support plate extending substantially in an extension plane on the motor vehicle, characterized in that at least one of the fastening means ( 221 ) in its position relative to at least one further fastening means ( 222 . 223 ) with at least one movement component (V2) parallel to the plane of extension (E) of the carrier plate ( 3 ) is adjustable to the drive unit ( 2 ) on the carrier plate ( 3 ). Drive unit according to claim 1, characterized in that by the adjustment of the adjustable fastening means ( 221 ) the housing ( 21 . 22 ) of the drive unit ( 2 ) positively on the support plate ( 3 ) is determinable. Drive unit according to claim 1 or 2, characterized in that the fastening means as a pin ( 221 - 223 ) are formed, the support plate ( 3 ) for fixing the drive unit ( 2 ) on the motor vehicle. Drive unit according to claim 3, characterized in that the pins ( 221 - 223 ) the carrier plate ( 3 ) in a direction perpendicular to the plane of extent (E) of the carrier plate ( 3 ) and at least one of the pins ( 221 ) with at least one movement component (V2) parallel to the plane of extension (E) of the carrier plate ( 3 ) is adjustable. Drive unit according to claim 3 or 4, characterized in that the adjustable pin as Verdrehdom ( 221 ) is formed, which relative to the housing ( 21 . 22 ) of the drive unit ( 2 ) is rotatable. Drive unit according to claim 5, characterized in that the Verdrehdom ( 221 ) one in a receptacle ( 44 ) of the housing ( 22 ) arranged head ( 42 ) and one with the head ( 42 ) connected shaft ( 41 ), wherein the head ( 42 ) in the recording ( 44 ) of the housing ( 22 ) about a first axis of rotation (M2) is rotatable and the shaft ( 41 ) is arranged eccentrically to the first axis of rotation (M2). Drive unit according to claim 6, characterized in that the head ( 42 ) acts as a lever, a rotation of the shaft ( 41 ) of the twisting dome ( 221 ) in a displacement of the shaft ( 41 ) relative to the housing ( 22 ). Drive unit according to one of the preceding claims, characterized in that the housing ( 22 ) and on the housing ( 22 ), adjustable fastening means ( 221 ) are made by injection molding of plastic in the 2K technology, wherein the adjustable fastening means ( 221 ) and the housing ( 22 ) are made of different materials that do not bond together during injection molding, so that the fastening means ( 221 ) to the housing ( 22 ) is adjustable. Drive unit according to claim 8, characterized in that as Verdrehdom ( 221 ) formed fasteners and the housing ( 22 ) are injection molded together in 2K technology such that the torsion dome ( 221 ) relative to the housing ( 22 ) is rotatable. Drive unit according to one of the preceding claims, characterized in that the housing has two housing halves ( 21 . 22 ), which on different sides of the carrier plate ( 3 ) are arranged, wherein the fastening means ( 221 - 223 ) on the one, first housing half ( 22 ) are arranged and by the carrier plate ( 3 ) in the other, second housing half ( 21 ) to intervene. Drive unit according to claim 10, characterized in that screw connections ( 24 ) for connecting the second housing halves ( 21 ) with the fastening means ( 221 - 223 ) are provided. Drive unit according to claim 11, characterized in that the screw connections by self-tapping screws ( 24 ) are produced, which from the side of the second housing half ( 21 ) in the fastening means ( 221 - 223 ) on the first housing half ( 22 ), screwing in the screw ( 24 ) the adjustment of the adjustable fastening means ( 221 ) for fixing the drive unit ( 2 ) on the carrier plate ( 3 ) causes. Drive unit according to one of the preceding claims, characterized in that the drive unit ( 2 ) Part of an adjusting device ( 2 ) forming a cable window lifter and a cable drum ( 23 ) for actuating a traction device ( 15 ), which in the housing ( 22 ) is enclosed.