EP2170659A1

EP2170659A1 - Window or lens for a vehicle, in particular motor vehicle, with a fastening device

Info

Publication number: EP2170659A1
Application number: EP08774251A
Authority: EP
Inventors: Roland Bohn
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2007-06-29
Filing date: 2008-06-24
Publication date: 2010-04-07
Also published as: WO2009003873A1

Abstract

The invention relates to a window or lens (3) for a vehicle, in particular motor vehicle, which is assigned a fastening device (2) for an additional component. It is provided that the window or lens (3) is composed of plastic (5) and that at least one fastening device (2) for the additional component is formed integrally therewith.

Description

description

Washer for a vehicle, in particular a motor vehicle, with a fastening device

The invention relates to a pane for a vehicle, in particular motor vehicle, which is associated with a fastening device for an additional component.

State of the art

It is known to provide windows for vehicles, in particular for motor vehicles, with fastening devices for additional components or to associate these fastening devices for additional components. For example, it is known to attach rear wiper motors or rear wiper drives to rear windows of motor vehicles by means of a steel plate. It is also known to provide fastening devices, for example in the form of bores through the pane, for spray nozzles of a windscreen washer device.

This has the disadvantage that additional components, such as threaded bolts and steel plates, must be used to provide a sufficiently secure and durable attachment to the disc, especially for wiper drives. Further, as a rule used bolts can not be glued directly to the disc or otherwise connected to this, since this does not have the required strength for such a holder, and also discs generally have a curvature glued to an angular difference or otherwise to the disc fastened bolt relative to each other and in particular to a deviation of the required right angle to the additional component to be fastened, for example, the rear wiper drive would result. Fasteners are formed in the prior art depending on the design and embodiment of the disk to be arranged on the additional components, which a large variety of fasteners and alternative fastening methods conditional. This is disadvantageous that there is a complicated storage and incompatibility of individual parts or different fastening devices to not specially provided for this additional components by this variety. This requires a high stock of material and a costly, tailored to each individual case assembly.

The object of the invention is to provide a disc for a vehicle, which is associated with a fastening device for an additional component, which avoids these disadvantages.

Disclosure of the invention

For this purpose, a disc for a vehicle, in particular motor vehicle, proposed, which is associated with a fastening device for an additional component. It is envisaged that the disc is made of plastic and that at least one fastening device for the additional component is formed integrally with it. The fastening device is therefore, unlike in the prior art, not designed as a separate component to the disc, but in turn is an integral part of the disc.

In particular, it is provided to carry out the fastening device as made of the material of the disc, namely made of plastic.

In one embodiment of the invention, the attachment device is a wiper drive attachment device. The fastening device consequently serves for receiving and / or holding a wiper drive, in particular thus a wiper motor and / or a wiper gear. This eliminates complicated, only with the use of other auxiliary components to be realized holding devices, such as those using steel plates and / or bolts, etc.

In another embodiment of the invention, the fastening device is a Sphtzdüsenbefestigungsvorrichtung. Spray nozzles are inserted in the prior art either through a recess of the disc (for example, a hole) and glued or otherwise sealed in this position, or glued on the outside of the window. Such holes or recesses are due to the fact that they must be carefully sealed, rather undesirable. In particular, the sealing properties of here to use through seals in particular because of their complicated geometry during the period of operation and service life of a vehicle, so that despite originally careful sealing water penetration can not be avoided. Sprayed outside on the disc spray nozzles require an aesthetically unsatisfactory heat supply by means of a hose. In the proposed embodiment, the sphygmatic attachment device is an integral part of the disc. In particular, the

Spritzdüsenbefestigungsvorrichtung be formed on the disc or molded onto it, so that the production of recesses, the insertion of a spray nozzle or a separate spray nozzle holder and in particular a special seal unnecessary.

In another embodiment of the invention it is provided that a spray nozzle is integrally formed on the spray nozzle attachment device. The spray nozzle is consequently not held in the spray nozzle fastening device as a separate component and / or introduced into this during manufacture, but it is an integral part of the spray nozzle fastening device, and preferably also the disc. This results in a reduction of the production cost and the vertical range of manufacture, in particular eliminates the known from the prior art sealing problems.

In another embodiment, it is provided that the fastening device is a seal holder. There are still areas of application of discs where it is unavoidable to provide the disc with a recess for the passage of components. Also, it is known in the art to apply gaskets to disks to use the disk as a tight release agent between a vehicle interior and the outside world surrounding the vehicle; Again, seals may be formed or provided on the disc. The attachment of seals in particular for sealing or on recesses of the disc is complicated in the prior art, because the disc usually a Curvature or created specifically for the respective vehicle geometry. For this reason, the corresponding sealing surfaces do not have a planar support; rather, the seals must adapt to the geometry of the disc at the respective bearing surfaces and support points. This in turn requires a significant number of possible seals, which can be avoided by the formation of a uniform, specific seal holder. Here, a uniform seal is introduced into a uniform seal holder, or it is provided a series of seals that cover different applications with a uniform sealing pad. A special consideration for the geometry of the disc is no longer necessary. In another embodiment, the seal retainer is a shaft seal retainer. Especially for waves, as they occur for example wiper drives and serve the drive or the realization of an oscillating wiper movement, it is common to pass the shaft through a recess of the disc to the wiper outside, but to be able to train the drive within a vehicle interior.

In such an embodiment, the shaft seal mount is a wiper shaft seal mount. The wiper shaft is thus passed through the disc, being sealed by a wiper shaft seal. The wiper shaft seal in turn is held by the wiper shaft seal holder. Here, it is provided that the wiper shaft seal holder is designed so that, regardless of the geometry of the disc, only one example, the wiper shaft surrounding (so penetrated by the wiper shaft) wiper shaft seal also applies to many different disc geometries application. This is for example achieved in that the wiper shaft seal holder (as already above the shaft seal holder in general) is formed so that it has a planar geometry on the surfaces which receive the seal, in particular against which the seal, wherein this geometry is particularly uniform , Preferably, the shaft seal holder may be formed to have a uniform cylindrical or cylinder section-by-section geometry penetrating the disk, wherein bearing surfaces on both sides of the disc are formed so that they receive standardized seals, in particular the bearing surfaces are approximately parallel to the shaft surface and / or perpendicular to a shaft axis. The shaft seal holder is designed so that, regardless of the geometry of the disc, the shaft always substantially at an angle of 90 ° pierces a shaft seal mounting plane, so that standardized and standardized seals can be used. Unlike in the prior art, where seals for sealing shaft exits lie directly against the disc or on bearing surfaces of the disc directly, in this case the geometry of the disc is irrelevant. In fact, in the prior art, virtually inevitably due to the curvature of the disc, a passage of the shaft at an angle not equal to 90 ° through the disc in the region of the seal support or the shaft passage; This is exactly what is avoided in training the proposed seal holder.

In a further embodiment, the shaft seal holder has an annular web which surrounds a shaft opening of the disk. This results in a constant, relative to the shaft breakthrough by a shaft, a defined, predetermined in the desired angles seal geometry or seal pad geometry.

In a further embodiment, it is provided that the annular web of the shaft seal provided with shaft seal holder is overlapped on both sides of the shaft seal. The shaft seal is thus formed on both sides with projections which have a larger diameter than the seal in the region of the shaft opening, so that they act on the disc in the region of the annular web on both sides and hereby lead on both sides to seal.

In a further preferred embodiment, the shaft seal holder is formed as located on the inside or outside of the disc hollow cylinder receptacle, in which the shaft seal is arranged inserted. Consequently, the shaft seal does not penetrate the shaft opening of the disc, but is arranged only on one side of the disc, namely on the outside or the inside of the disc. There is one there Hollow cylinder receptacle formed, in which the shaft seal is inserted during manufacture, wherein it engages around the shaft. By this hollow cylindrical receptacle, which is for example substantially cup-shaped, results in a simple production and, in arrangement on the inside of the disc, not visible from the outside, reliable sealing. In order to prevent the shaft seal from sliding out of the hollow cylinder receptacle, the hollow cylinder receptacle on the side facing away from the disc can, for example, have at least one retaining lug or an undercut which locks the shaft seal.

Further advantageous embodiments will become apparent from the dependent claims and combinations thereof.

Brief description of the drawings

The invention will be explained in more detail with reference to figures.

Show this

FIG. 1 shows a wiper drive fastening device on a window of a vehicle,

FIG. 2 shows a spray nozzle fastening device on a pane of a

vehicle

Figure 3 shows a shaft seal holder on a window of a vehicle and

FIG. 4 shows a shaft seal designed as a hollow cylinder receptacle on the window of a vehicle.

Embodiment (s) of the invention

FIG. 1 shows a fastening device 2 embodied as a wiper drive fastening device 1. This is attached to a pane 3 of a fastening device (not shown) Vehicle formed, the disc 3 is a rear window 4 and consists of plastic 5. The fastening device 2 is integrally formed with the disc 3 made of the plastic 5, such that it is formed on a disk inner side 6 as a mold member 7 protruding beyond the disk inside 6. The mold component 7 has an integrated, in particular injected bolt 8, which is designed in particular as a multi-stage bolt 9. For increased strength requirements, the bolt 8 may be made of metal, in particular steel 10. The bolt 8 is formed as a multi-stage pin 9 such that it has a diameter greater than a bolt receiving portion 11 enlarged head 12, wherein for increased strength requirements, a ring portion 13 is formed directly adjacent to the head 12. The bolt 8 is located up to and including the ring portion 13 within the plastic 5 of the disc 3, wherein the head 12 is completely surrounded by the plastic 5, whereby the fixation of the bolt 8 takes place within the mold member 7 and thus the disc 3. The bolt 8 serves to receive a wiper drive 14, which is shown here for the sake of clarity only as a section of a wiper drive housing 15. The wiper drive housing 15 has for easy attachment to the bolt 8, a preferably made of elastic material 16 existing, a bolt hole 17 having sleeve 18 which is penetrated for the purpose of securing the wiper drive housing 15 on the disc 3 via the mold member 7 of the bolt 8, wherein the bolt receiving portion 11 of the bolt 8 has a greater length than the sleeve 18 is strong. This allows a Bolzenendbereich 19, which projects beyond the sleeve 18, a clamping ring 20 and a snap ring 21 receive, which fixes the sleeve 18 on the bolt 8 end. For this purpose, the bolt 8 and / or the bolt end region 19 can have radial grooves, not shown here, or other equivalent surface formations. The sleeve 18 is in this case of the mold member 7, which is an integral part of the disc 3, fixed on one side and by the snap ring 21 on the other side, so that an axial clearance on the bolt receiving portion 11 is not possible. To ensure a defined pressing of the sleeve 18, a spacer sleeve (not shown here) or spacer sleeve pushed over the bolt receiving area 11 can be used; the sleeve 18 is then not directly on the bolt receiving portion 11, but on the spacer sleeve or Spacer sleeve, of which it is penetrated, and which engages over the bolt receiving portion 11. Of course, the bolt 8 can also be present in other embodiments, in particular it can be provided that the bolt receiving area 11 is configured as a screw thread (not here) shown), wherein instead of the clamping ring 20 and the snap ring 21, a nut, not shown here comes as axial securing the sleeve 18 on the bolt receiving portion 11 into consideration. Further, the bolt 8, io in particular the bolt receiving portion 11, itself be formed as an integral part of the disc 11 and consist of the plastic 5; In this case, it is provided that the bolt receiving region 11 itself is formed on the molded component 7, the molded component 7 thus having a substantially cylindrically shaped projection which serves as a bolt receiving region 11.

Again, the bolt receiving portion 11 can accommodate both the clamping ring 20 or the snap ring 21 or be formed as a thread, instead of the clamping ring 20 or the snap ring 21, a nut as axial securing use to unwanted disturbing influences on the external appearance of the disc, in particular their design aesthetics too

20, the disc 3 may have a coloring 23 on its outer side 22 of the disc. The coloring 23 is preferably held in a dark hue, in particular in black, whereby other color designs are conceivable, and is preferably already applied during manufacture of the disc 3 or melted into the plastic 5 of the disc 3.

25

Figure 2 shows the disc 3, namely the rear window 4 in another disc section. Preferably, in the region of the coloring 23, the disk 3 on the outside of the disk 25 has an integrally molded or molded Sphtzdüsenbefestigungsvorrichtung consisting of the plastic 5 of the disc 3

30 24, which is designed as a tube nose 25, in particular serving for the transport of liquid medium pipe 26 has. The pipe path 26 penetrates the disk 3 from the outside of the disk 22 to the disk inside 6, where an existing from the plastic 5 of the disc 3 hose connection piece 27 integrally formed to the disc 3

35 or molded on. The pipeline 26 thus begins an end portion 28 of the pipe support 27 and ends outside the disk in a spray nozzle 29, which in the

Spray nozzle attachment device 24, in particular end, is formed or in the spray nozzle attachment device 24, for example as (not shown here), pivotable spray nozzle 29, introduced, in particular inserted. The spray nozzle attachment device 24 serves as a spray nozzle holder 30, wherein the spray nozzle 29 in the spray nozzle holder

30 is either introduced (for example, as an adjustable spray nozzle, as it is known as a pierced ball (not shown here)), or wherein the spray nozzle is integrally formed to the spray nozzle holder 30, the

Spray nozzle holder 30 thus has at its end a trained as a spray nozzle 29 molding of the pipe path 26. The pipe path 26 is in this case not set to a direct, more or less transverse to the disc 3 disc penetration, but it can also be performed over larger sections or distances within the disc 3, so that no direct spatial opposing disc inside or outside of spray nozzle holder 30 and hose connection piece 27 must be present. Rather, it is possible to form the spray nozzle holder 30 at one point of the disc 3, but the hose connection piece 27 at a very different, more remote location, the connection between the spray nozzle 29 and hose connection piece 27 via the running in the disc 3 pipe 26.

FIG. 3 shows a shaft seal holder 31, namely a wiper shaft seal holder 54, in a region of the disk 3 with a disk breakthrough 32 passing through the disk 3 in the region of the shaft seal holder 31 as shaft opening 52, into which a shaft seal enclosing the shaft aperture 32 outside and inside the disk 33 is introduced. The shaft seal 33 encloses a guided in a shaft sleeve 34 shaft 35 for driving a wiper 36. The shaft seal holder

31 has on the outside of the disc 3, a seal outer pad 37, the disc inside a seal inner pad 38 corresponds. The seal outer pad and the seal inner pad are substantially parallel to each other; this means that, in contrast to the curved or curved geometry of the disc 3, in the area covered by the disc Shaft seal 33 outside and inside of the disc 3 is acted upon, in particular with sealing beads 39, which are provided for spreading the disc opening 32 in the region of the seal outer pad 37 and the seal inner pad 38, have such a geometry, the seal outer pad 37 and the

Seal inner pad 38 is shown as mutually substantially parallel planes lying. As a result, a ring land 53 is formed, and it can be used as a shaft seal 33, a commercial, suitable for a variety of applications standard seal that does not have to take into account the geometry of the disc 3 and which inevitably resulting in conventional design deviations from the perpendicular to Disk 3 in a shaft axis 40 avoids. In the embodiment of the invention provided here, the shaft axis 40 is perpendicular to the seal outer support 37 and the seal inner support 38, whereby no shaft seal adapted to the geometry of the disc must be used, but find the shaft seal holder 31 for standardized, usable for a variety of cases universal gaskets use can. By forming reinforced regions 41 in the region of the shaft seal holder 31, a stable, universal fit of the shaft seal 33 can be achieved. To an undesirable

Material accumulation of plastic 5 of the disc 3 in the region of the reinforced areas 41 to avoid, in the region of the reinforced areas 41 a material recess 42 may be formed or formed. Of course, embodiments without shaft sleeve 34 are conceivable in which the shaft 35 is sealed directly to the shaft seal 33.

FIG. 4 shows a shaft seal holder 31 on the disk 3 for the shaft 35 guided in the shaft sleeve 34, which serves to drive the wiper 36. The disc 3 has a pulley opening 32 as a shaft opening 52, which is penetrated by the shaft sleeve 34 and the shaft 35. The disk inside of the disk 3 is made of the plastic 5 of the disk 3 and integral with the disk 3, the shaft seal holder 31, which has an annular step 43, such that a first support diameter di, as it is in the immediate vicinity of the disc 3, is less than a second support diameter U ₂ , as in the area facing away from the disc 3 after the ring stage 43 is present. The shaft sleeve 34 is encompassed by a shaft seal 33, which lies with its outer edges 44 in direct contact position to Halterungsinnenseiten 45 of the shaft seal holder 31 and thereby causes the seal and the clamping seat of the shaft seal 33 in the shaft seal holder 31. The shaft seal 33 is in this

Embodiment only on one side, namely the inside of the disc 3 executed. The shaft seal holder 31 forms for this purpose a hollow cylindrical receptacle 46, in which the shaft seal 33 is introduced in a clamping fit. In particular, when forming the hollow cylinder receptacle 46 with the annular step 43 described above and the correspondingly shaped shaft seal 33, a very good seal and a very good clamping fit of the shaft seal 33 in the shaft seal holder 31 is given. In order to prevent the shaft seal 33 from sliding axially out of the hollow cylinder receptacle 46, one or more lugs 48 or an undercut 49, which serves as the axial securing means 50 of the shaft seal 33, can be mounted on the shaft end seal 47 (ie on the inside). In the present case, the shaft seal 33 is adapted to the shape of the disc 3 in its disc-facing front region 51, whereas its disc-facing end region 47 is planar, in particular perpendicular to the shaft axis 40, or the shaft axis 40 is perpendicular to the end region 47. The shape adapted execution of the front portion 51 is useful, but not required. A sufficient sealing effect is also conceivable when an annular, that is not adapted shape shaft seal 33 in the region of the hollow cylinder receptacle 46, in particular using the annular step 43, is introduced.

Claims

claims

1. Disc for a vehicle, in particular motor vehicle, which is associated with a fastening device for an additional component, characterized in that the disc (3) made of plastic (5) and that integrally with it at least one fastening device (2) is formed for the additional component ,

2. Disc according to claim 1, characterized in that the fastening device (2) has a wiper drive fixing device

(1).

3. Disc according to one of the preceding claims, characterized in that the fastening device (2) is a spray nozzle fastening device (24).

4. Disc according to one of the preceding claims, characterized in that on the spray nozzle fastening device (24) has a spray nozzle (29) is integrally formed with.

5. Disc according to one of the preceding claims, characterized in that the fastening device (2) is a seal holder.

6. Disc according to one of the preceding claims, characterized in that the seal holder is a shaft seal holder (31).

7. Disc according to one of the preceding claims, characterized in that the shaft seal holder (31) has a

Wiper shaft seal holder (54) is.

8. Disc according to one of the preceding claims, characterized in that the shaft seal holder (31) has an annular web (53) which surrounds a shaft opening (52) of the disc (3).

9. Disc according to one of the preceding claims, characterized in that the annular web (53) provided with a shaft seal (33) shaft seal holder on both sides of the shaft seal (33) is overlapped.

10. Disc according to one of the preceding claims, characterized in that the shaft seal holder as on the inside or outside of the disc (3) located hollow cylinder receptacle (46) is formed, in which the shaft seal (33) is arranged inserted.