Pane unit for a window on motor vehicles

Abstract

A pane unit (11, Fig.1) for a motor vehicle window having: a first pane 12, which has an inner side 18 oriented towards an interior of the vehicle and an outer side 28 opposite; a guide member 15 exte

Description

The invention relates to a pane unit for a window on motor vehicles, which has a first pane with an inner side which is oriented towards an interior of the vehicle and comprises an outer side on the opposite side, and with a guide element which extends along a longitudinal side of the first side and is provided for guiding a second up and down movable pane. Such a pane unit is known from EP 2 463 133 Al. The first pane is surrounded by a frame which has a multi-part frame profile with at least one secondary part as a soft component. A mounting area for a panel element is provided on the frame facing the outside of the body. A primary part is provided in the frame as a hard component, which comprises a U-shaped guide profile. This U-shaped guide profile is assigned to a longitudinal edge of the pane. The longitudinal edge as well as the outside and inside of the pane are overmolded with a soft component. The primary part is partially overmolded with the same soft component. A pane unit is also known from EP 2 463 134 Al. In this pane unit, it is provided that a hard component with a U-shaped guide profile is formed aligned with the longitudinal side of the first pane, which surrounds both an area adjacent to the longitudinal edge on the inside of the pane and on the outside of the first pane. The hard component, which has a U-shaped profile to form a guide element, is overmolded with a soft component on the outside as a guide element, the soft components abutting both the outside and the inside of the pane. The invention is based on the object of proposing a pane unit which has a first pane with a guide element arranged thereon for a up and down movable pane therein, in which the arrangement of the up and down movable pane relative to the first pane is improved. This object is solved by a pane unit in which the guide element is arranged on the inside of the first pane, in particular fixed, or is connected to the inside of the first pane. This arrangement has the advantage that the guide element is designed to be more rigid, since a surface section or support section of the guide element adjoining the inside of the first pane extends along the inside of the first pane, thereby forming a stiffening for the guide element. Furthermore, this design has the advantage of providing increased security against a break-in. In addition, an optical improvement can be achieved in the design of the guide between the first pane and the up and down movable pane. In particular, it is provided that the guide element is attached exclusively to the inside of the first pane. The longitudinal edge between the inside and outside of the first pane, as well as the outside of the first pane, are thus completely free or not covered by the guide element and / or a component for connecting the guide element to the first pane. According to an advantageous embodiment, it is provided that a sealing element is insertable into the guide of the guide element, along which the up and down movable pane is guided. This arrangement allows the previous concepts relating to the sealing element for guiding the up and down movable pane to continue to be used. Advantageously, it is provided that the up and down movable pane is aligned to overlap the inside of the first pane. This enables simplified sealing in the area between the first pane, i.e. the non-moving pane, and the up and down movable pane. This pane unit is installed in an opening or recess in a vehicle door, with the first pane being firmly connected to the vehicle body and the second pane being guided up and down through the window guide element in the body of the door. Furthermore, it is preferably provided that a sealing lip is arranged between the longitudinal side of the first pane, which faces the up and down movable pane, and an outer side of the up and down movable pane, which sealing lip is supported on the longitudinal side of the first side and bears against the outer side of the up and down movable pane. Preferably, the sealing lip has an abutment or stop which extends at least partially or completely over the thickness of the longitudinal side of the first pane. This sealing lip is preferably provided in one piece on the sealing element. On the one hand, this provides an additional seal between the up and down movable pane and the fixed or first pane. On the other hand, this arrangement has the advantage that it passes a so-called ice scraper test, as this sealing lip has improved mechanical properties and thus prevents damage during ice scraping. The sealing lip has an abutment in the transition area to the sealing element arranged in the U-shaped guide, which reduces the spreading or lifting of the sealing lip relative to the up and down movable pane when an ice scraper is inserted. According to a first embodiment of the invention, it is provided that the guide element comprises a U-shaped guide which has an inner and an outer guide section which are spaced apart from one another by a guide base. This forms the receiving space for the sealing element and the up and down movable pane therein. In the design of the guide element, it may be provided that the inner guide web and the outer guide web do not extend beyond the longitudinal side of the first pane in the direction of the up and down movable pane. Alternatively, it may be provided that the inner guide web of the guide element does not extend beyond the longitudinal side of the first pane in the direction of the up and down movable pane and the outer guide web extends beyond the longitudinal side of the first pane in the direction of the up and down movable pane. The last embodiment has the advantage that increased supporting forces can be transmitted to the upwardly and downwardly movable pane by the guide element. It is preferable that the U-shaped guide of the guide element is formed from a hard component, which is at least partially encapsulated by a soft component on an outer side. This hard component can be formed as an insert, for example. When the soft component is introduced into an injection molding tool in which the first pane and the hard component are inserted, the hard component is at least partially overmolded and a connection is formed between the first pane and the hard component. Preferably, the soft component extends at least partially between the inside of the first pane and the inner guide section of the guide adjacent thereto. This can provide a rigid connection between the guide element and the first pane. The hard component can, for example, be made of polypropylene or the like, while the soft component can, for example, be made of TPE (thermoplastic elastomer) or the like. According to an alternative embodiment, the guide element can be made of a hard component, which is attached to the inside of the first pane with an adhesive strip or an MS polymer layer or a back injection molding and preferably the outside of the guide element is coated, foiled, painted, surface-finished, or provided with a cover or with a soft component. This makes it possible to easily change the visual effect of the guide element in a variety of ways to improve the visible side for the vehicle occupants. Furthermore, it can be advantageously provided that a support section extends in extension to the inner guide section of the U-shaped guide, which is formed from the hard component and is aligned to the inside of the pane. The hard component can therefore be L-shaped. This enables an enlarged contact surface of the guide element on the inside of the pane. In addition, when a force is applied to the outer guide element, improved dissipation and support of the acting force via the support section can be made possible. According to an alternative embodiment of the invention, the guide element has a web-shaped outer guide section which is aligned by a guide base at a distance from a surface section of the inner side of the first pane, wherein the U-shaped guide is formed by a surface section on the inner side of the first pane and the web-shaped outer guide section. This represents a weight-reducing embodiment. This design has the advantage that the elimination of the inner guide web results in a reduced depth offset between the outside of the first pane and the up and down movable pane. A step between the outside of the first pane and the outside of the up and down movable pane is thus reduced. In addition, a weight saving can be achieved in the design of such a guide element. In this alternative embodiment of the guide element, the outer guide section or outer guide web can extend only as far as the longitudinal side of the first pane in the direction of the up and down movable pane. This outer guide web can also extend beyond this longitudinal side of the first pane in the direction of the up and down movable pane. Advantageously, it is provided that the web-shaped outer guide section extends parallel to the inner side of the first pane up to the longitudinal edge of the first pane. Alternatively, it may be provided that a free end of the outer guide web is inclined towards the inside of the first pane. This allows a trapezoidal interior of the guide area to be created between the inside of the pane and the guide element. This has the advantage that the seal can be held better by a positive fit. Additional retaining elements on the seal for secure arrangement in the guide area can be omitted. In this alternative embodiment of the guide element, it is also preferably provided that the web-shaped guide section merges into a guide base, through which the guide section is aligned at a distance from the inside of the first pane and that a support section is formed opposite the outer guide section, which rests against the inside of the first pane. In this embodiment, a hard component is provided in particular to form the outer guide section, the guide base and the support section, which is approximately z-shaped, s-shaped or stepped. This in turn enables improved absorption of a force acting on the up and down movable pane. In this alternative embodiment of the guide element, it is preferably provided that at least the outer guide section and the guide base are formed by a hard component, which is at least partially overmolded by a soft component on its outer side, with the soft component preferably fixing the hard component to the inner side of the first disc. Alternatively, it may be provided that the guide element is formed from a hard component and is fixed to the inside of the pane with an adhesive, such as a PU adhesive or the like, or an adhesive strip or an MS polymer layer. Furthermore, in this alternative embodiment of the guide element, the web-shaped guide section and the guide base may alternatively be formed from a metallic material, or a light-metal material, or a fiber composite material. These embodiments can be attached to the inside of the first pane by an adhesive, such as a PU-adhesive or the like, or an adhesive strip, or an MS-polymer. It may also be provided that such materials are attached to the inside of the first pane with a soft component. In the aforementioned examples of the alternative embodiment of the guide element, it may also be provided that the surfaces facing the interior of the body are provided with a trim, a decorative strip, a coating or a paint finish. The invention and other advantageous embodiments and further embodiments thereof are described and explained in more detail below with reference to the examples shown in the drawings. The features to be taken from the description and the drawings can be used individually or in any combination in accordance with the invention. The drawings show Figure 1 a schematic side view of a pane unit, Figure 2 a schematic sectional view along the line I-I in Figure 1, Figure 3 a schematic sectional view of an alternative embodiment along line I-I in Figure 1, Figure 4 a schematic sectional view of a further alternative embodiment to Figure 1, Figure 5 a schematic sectional view of a further alternative embodiment to Figure 1, Figure 6 a schematic sectional view of the embodiment according to Figure 4 during an ice scraper test, Figure 7 a schematic sectional view of an alternative embodiment to Figure 5, Figure 8 a schematic sectional view of an alternative embodiment to Figure 7, Figure 9 a schematic sectional view of a further alternative embodiment to Figure 5, and Figure 10 a schematic sectional view of a further alternative embodiment to Figure 5, and Figure 11 a schematic sectional view of a further alternative embodiment to Figure 5. Figure 1 shows a view of a pane unit 11. This Figure 1 shows a view of the outer side of the pane unit 11, which is installed in a car body. This window unit 11 comprises a first pane 12, which can be firmly mounted in a door of a motor vehicle. The first pane 12 is associated with a second pane 14, which can be moved up and down, at a longitudinal edge 13 or at the vertical end face 13. A guide element 15 is arranged between the first pane 12 and the second pane 14, which extends along the longitudinal side 13 of the first pane 12 and downwards into the door beyond the longitudinal side 13 of the first pane 12. The first pane 12 can comprise a frame 17 which, according to the embodiment example, surrounds the pane 12 up to the longitudinal side 13. One or more fastening elements 18 may be arranged and / or directly formed on the frame 17. These fastening elements 18 can be used to fasten the first pane 12 to or in the body of the door. The up and down movable pane 14 that can, for example, be an ESG-pane (single-pane safety glass) or a VSG pane (laminated safety glass), or a pane made of plastic or plastic laminate. The first pane 12 can also be, for example, an ESG pane, or a VSG pane, or a pane made of plastic or plastic composite. Furthermore, the first pane 12 can be designed as a painted panel made of various materials, such as glass, metal, plastic, wood or the like. The first pane 12 can be transparent, partially transparent, opaque or completely opaque. This first pane 12 can also comprise functional elements, such as a display for showing information, or security elements. The pane unit 11 shown in Figure 1 can be mounted on a driver's door and / or passenger door, or a door in the rear area of the vehicle. Figure 2 shows a schematic sectional view along line I-I in Figure 1. This sectional view shows the connection and positioning of the guide element 15 to an inner side 18 of the first pane 12. The guide element 15 is attached to the inner side 18, in particular exclusively to the inner side 18, of the first pane 12. The front side 13 or longitudinal side 13 and the one outer side 19 of the first pane 12 are completely free. The guide element 15 comprises a U-shaped guide 21, into which a sealing element 22 can be inserted. This sealing element 22 serves to seal and to guide the up and down movable pane 14. This guide element 15 is preferably designed as a two-component part. This consists of a hard component 23, which is at least partially surrounded by a soft component 24. The soft component 24 can surround at least the outside of the hard component 23. Advantageously, the soft component 24 is formed between the main component 23 and the inner side 18 of the first pane 12. The soft component 24 can be formed from a thermoplastic elastomer. As a result, the guide element 15 can be attached to the inner side of the guide element 15 by means of the soft component 24. For example, it may be provided that the hard component 23 and the pane 12 are inserted in an injection molding tool in order to subsequently inject the soft component 24, so that the guide element 15 is formed and at the same time the connection to the inner side 18 of the first pane 12 takes place. The soft component 24 can also form the frame 17 at the same time. Full reference is made to EP 0 857 116 Bl as an example of the materials for the hard component and the soft component. By connecting the guide element 15 exclusively to the inside of the first pane 12, it is possible for the second pane 14 to be guided up and down behind the first pane 12 when viewed from the outside. An overlap area 26 is formed between the first and the second pane 12, 14. A part of a sealing element 22 extends in an intermediate space between the overlap region 26, to which a sealing lip 27 is connected on the outside, which is aligned both to the longitudinal side 13 of the first pane 12 and to an outer side 28 of the second pane 14. This sealing lip 27 has an abutment 29 on the longitudinal side 13 of the first pane. As a result, the sealing lip 27 is supported on the first pane 12 and rests against the outer side 28 of the second pane 14 under at least a slight preload. This mode of operation of the sealing lip 27 is described below with reference to Figure 5. To form the U-shaped guide 21, the guide element 15 has an inner guide web 31 and an outer guide web 32, which are spaced apart from one another by a guide base 33. In addition, the guide element 15 has a support section 35, which preferably lies in the plane of the inner guide web 31 and is aligned in the opposite direction to the inner guide web 31. This can provide an enlarged contact surface for connecting the guide element 15 to the inside 18 of the first pane 12. At the same time, this serves to improve the stiffening of the edge area of the first pane 12. Furthermore, a recess 36 in the hard component 23, which is filled with the soft component 24, can be provided between the inner guide web 31 and the support section 35 to improve the connection of the guide element 15 to the inner side 18 of the first pane 12. Figure 3 shows a schematic sectional view of an alternative embodiment to Figure 2. The structure of the guide element 15 with the U-shaped guide 21 through the inner guide web 31, the outer guide web 32 and the guide base 33 arranged therebetween corresponds to that in Figure 2. Likewise, a support section 35 can advantageously be provided, with the aforementioned sections forming the hard component 23. The hard component 23 can be overmolded with the soft component 24 on its outer side. Alternatively, a trim, decorative strip 37 or a coating can be applied to the hard component 23. In contrast to Figure 2, an adhesive tape 38 is used to connect the guide element 15 as shown in Figure 3, for example. This adhesive tape 38 extends along the surface section 34 on the inner side 18 of the first pane 12. The guide element 15 is attached to it by the adhesive connection. Instead of the adhesive tape 38, an MS polymer layer can also be provided. Likewise, a back injection molding can also be provided between the U-shaped guide 21 and the inner side 18 of the first disc 12. Figure 4 shows a schematic sectional view of a further alternative embodiment to Figures 2 and 3. The structure of the guide element 15 with the U-shaped guide 21 through the inner guide web 31, the outer guide web 32 and the guide base 33 arranged therebetween corresponds to that in Figures 2 and 3. This embodiment differs with respect to Figures 2 and 3 in that a support section 35 is not provided. Instead, the guide element 15 is only designed as a U-shaped guide 21. The soft component 24 can be formed as an overmolding, by which both a connection of the inner guide web 31 with the inner side 18 of the first pane is effected and the free outer sides of the guide element 15 are covered by the soft component 24. Alternatively, this U-shaped guide element 15 can also be fastened to the inner side 18 of the pane 12 by means of an adhesive tape 38 or by means of the other fastening options shown in Figures 2 and 3. Figure 5 shows a schematic sectional view along line I-I in Figure 1, which shows an alternative embodiment to the guide element 15 in Figure 2. The structure of the guide element 15 in Figure 4 corresponds in principle to the embodiment in Figure 2. However, the embodiment according to Figure 4 deviates in that an inner guide web 31 is not formed. The U-shaped guide 21 of the guide element 15 is thus formed by a modified guide element 15, which is only formed by the outer guide web 32 and the guide base 33. This guide element 15 can be L-shaped. Alternatively, the guide element 15 can be Z-shaped or S-shaped, as shown. This guide element 15 forms the U-shaped guide 21 with a surface section 34 on the inner side 18 of the first pane 12. The outer guide web 32 is positioned at a distance from the inner side 18 of the first pane 12 by the guide base 33. The depth offset between an outer side 19 of the first pane 12 and the outer side 28 of the up and down moveable pane 14, is thus reduced. This embodiment is also weight-optimized compared to the embodiment in Figure 2. In all other respects, the comments on Figures 2 and 4 apply. Figure 6 shows a schematic sectional view of the embodiment shown in Figure 5 during an ice scraper test. When removing ice from the second pane 14 using an ice scraper, the ice scraper can get between the sealing lip 27 and the outer side 28 of the second pane 14. Mechanical damage to the guide element 15 can be prevented by the advantageous design of the sealing lip 27 on the one hand and the arrangement of an edge region of the up and down movable pane 14 in the overlap region 26 to the first pane 12. The abutment 29 on the sealing lip 27 prevents the ice scraper from expanding and being pushed in between the outside of the second pane and the sealing element 22. Figure 7 shows a further sectional view of another alternative embodiment to Figure 5. This embodiment also comprises a guide element 15, which is formed by the outer guide web 32, the guide base 33 and preferably by the support section 35. These components form the hard component 23. The outer side of the outer guide web 32, the guide base 33 and the support section 35 are, for example, overmolded, in particular completely, with a soft component 24. In this embodiment, the hard component 23 is attached to the inner side 18 of the first pane 12 by an adhesive strip or an MS polymer. The overmolding or soft component 24 can be connected to the adhesive layer or to the inner side 18 of the first side 12 for sealing. In all other respects, the explanations relating to Figure 5 apply. Figure 8 shows a schematic sectional view of a further alternative embodiment to Figures 5 to 7. The structure of the guide element 15 can comprise the embodiments according to Figures 5 to 7. In these embodiments according to Figures 5 to 7, it is provided that the outer guide web 32 extends only as far as the longitudinal side 13 of the first pane 12 in the direction of the up and down moveable pane 14. In this embodiment according to Figure 8, the outer guide web 32 is shown in an alternative embodiment. The outer guide web 32 extends beyond the longitudinal side 13 of the first pane 12 in the direction of the up and down moveable pane 14. This configuration of the outer guide web 32 can also be provided in the embodiments according to Figures 2 to 4. Figure 8 also shows an alternative embodiment of the sealing element 22. In this embodiment, it is provided that the abutment 29 on the sealing lip 27 extends not only partially over the width of the longitudinal side 13 of the first pane 12. This abutment 29 preferably extends over the entire width of the longitudinal side 13 of the first pane 12. As a result, the longitudinal side 13 of the first pane can be completely protected by this sealing lip 27, in particular against stone chipping. This embodiment also exhibits increased resistance in the ice scraper test. In addition, it may be possible for the free end of the sealing lip 27 opposite the abutment 29 to bear against the outside of the up and down movable pane 14 with increased force. This can also further minimize the ingress of water. In addition, the offset between the first pane 12 and the up and down moveable pane 14 can be made more visually pleasing. This alternative embodiment of the sealing lip 27 on the sealing element 22 can also be provided in all other embodiments according to Figures 2 to 11. Figure 9 shows a further alternative embodiment to Figures 5 to 8. In this embodiment, a deviation is provided in that the outer guide web 32 is designed with its free end inclined towards the inner side 18 of the first pane 12. This configuration of the guide element 15 is provided in particular if the S-shaped or Z-shaped or L-shaped guide element 15 is connected to the inner side 18 of the pane 12 by an adhesive connection. In this embodiment, it is preferably provided that the guide 21 narrows in the direction of the up and down moveable pane 14. This makes it possible for the guide 21 to be trapezoidal or to create a trapezoidal interior. This has the advantage that the sealing element 22 inserted into the guide 21 can be held by a positive fit. Additional fastening elements, such as those shown in the embodiments shown in Figures 7 and 8 by retaining arms, can be omitted. Figure 10 shows a schematic sectional view of a further alternative embodiment to Figures 5 and 6. In this embodiment, it is provided that the guide element 15 has an outer guide web 32 and a guide base 33. In addition, a support section 35 is provided, which, however, is triangular or roof-shaped and merges into the guide base 33, or comprises the guide base 33 and preferably extends up to the outer guide element 32. This represents an alternative to the L-shaped guide element 15 and can alternatively also be used in all of the aforementioned embodiments. The outer guide element 32, the guide base 33 and the support section 35 are preferably designed as a hard component 23, which preferably comprises recesses 36. A soft component 24, in particular TPE, is provided to connect the hard component 23 to the inside of the pane 12. In this embodiment, the outer side of the guide element 15 facing the interior is provided, for example, with a decorative strip 37 or a cover. This decorative strip 37 or cover can be attached to it by an adhesive tape 38 or an adhesive. Alternatively, it is also possible for the decorative strip 37 or the cover to be glued or pressed or clipped on. Furthermore, it is also possible that a paint finish or coating is provided instead of the trim strip or panel. Figure 11 shows a schematic sectional view of a further alternative embodiment to Figure 5 and Figure 7 to Figure 10. In this embodiment, it is again provided that the guide element 15 consists of an outer guide web 32, the guide base 33 and the support section 35. This can be a stepped or a Z-shaped arrangement. In this embodiment, the guide element 15 is made of a metal, light metal or a fiber composite, for example. To connect the guide element 15, the support section 35 is attached to the inside 18 of the first pane 12 by means of an adhesive tape 38, an adhesive strip or an MS-polymer or by back injection molding. In all other respects, the embodiments of the preceding figures apply.

Claims

1. Pane unit for a window on motor vehicles,having a first pane (12) which has an inner side (18) which is oriented towards an interior of the motor vehicle and has an outer side (28) opposite thereto,having a guide element (15) which extends along a longitudinal side (13) of the first pane (12) and is provided for guiding a second pane (14) which is moveable up and down and extends in the opposite direction to the first pane (12),- the guide element (15) is arranged on the inside (18) of the first pane (12)characterized in- that the upwardly and downwardly movable pane (14) is aligned so as to overlap the inner side (18) of the first pane (12).

2. Pane unit according to claim 1, characterized in that the guide element (15) is aligned and positioned exclusively covering the inner side (18) of the first pane (12).

3. Pane unit according to one of the preceding claims, characterized in that a sealing element (22) is insertable in the guide element (15), along which sealing element the up and down moveable pane (14) is guided.

4. Pane unit according to one of the preceding claims, characterized in that a sealing lip (27) is provided between the longitudinal side (13) of the first disc (12) and the up and down moveable pane (14), which sealing lip is aligned with an abutment (29), which extends at least partially or completely over the thickness of the longitudinalside (13) of the first pane (12), is supported on the longitudinal side (13) of the first pane (12) and bears against the outer side (28) of the up and down moveable pane (14).

5. Pane unit according to one of the preceding claims, characterized in that the guide element (15) has a U-shaped guide (21), which has an inner guide web (31) and an outer guide web (32), which are spaced apart from one another by a guide base (23).

6. Pane unit according to claim 5, characterized in that the guide element (15) is arranged to overlap the inner side (18) of the first disc (12) and the inner guide web (31) does not extend beyond the longitudinal edge (13) of the first disc (12) in the direction of the up and down moveable pane (14), and the outer guide web (32) is aligned in the same way as the inner guide web (31), or extends beyond the longitudinal side (13) of the first pane (12) in the direction of the up and down moveable pane (14).

7. Pane unit according to claim 5 or 6, characterized in that the U-shaped guide (21) of the guide element (15) is formed from a hard component (23) which is at least partially encapsulated by a soft component (24) at least on one outer side.

8. Pane unit according to claim 7, characterized in that the soft component (24) extends at least partially between the inner side (18) of the first disc (12) and the inner guide web (31) adjacent thereto.

9. Pane unit according to claim 7, characterized in that the guide element (15) formed from a hard component (23) is attached to the inner side (18) of the first pane (12) by means of an adhesive strip or an MS polymer layer or a back injection moulding, and preferably the outer side of the guide element (15) is coated, painted, foiled, surface-finished or provided with a decorative strip (37).

10. Pane unit according to one of claims 6 to 8, characterized in that a support section (35) extends in extension of the inner guide web(31) of the U-shaped guide (21), which is formed at least from a hard component (23).

11. Pane unit according to one of claims 1 to 5, characterized in that the guide element (15) has an outer guide web (32), which is aligned by a guide base (33) at a distance from the inner side (18) of the first pane (12), and in that the U-shaped guide (21) is formed with the surface section (34) opposite the outer guide web (32) on the inner side (18) of the first pane (12) with the outer guide web (32), and preferably the outer guide web (32) extends parallel or substantially parallel to the surface portion (34) on the inner side (18) of the first pane (12), or the outer guide web (32) is oriented with its free end inclined towards the inner side (18) of the first pane (12).

12. Pane unit according to claim 11, characterized in that the outer guide web (32) merges into the guide base (33) and this guide base (33) is adjoined by a support section (35) which is aligned in the opposite direction to the outer guide web (32) and bears against the inner side (18) of the first pane (12).

13. Pane unit according to one of claims 11 or 12, characterized in that the outer guide web (32) does not extend beyond the longitudinal side (13) of the first disc (12) in the direction of the up and down moveable pane (14), or in that the outer guide web (32) extends beyond the longitudinal side (13) of the first disc (12) in the direction of the up and down moveable pane (14).

14. Pane unit according to one of claims 11 to 13, characterized in that the outer guide web (32), the guide base (33) and the support section (35) are formed as a hard component (23), which is at least partially encapsulated by a soft component (24) on an outer side, or in that the guide element (15) is formed from a hard component (23) and is attached to the inner side (18) of the first pane (12) by a soft component (24), an adhesive, an adhesive strip or an MS polymer layer and preferably the outer side of the guide element (15) is coated, painted, foiled, surface-finished or provided with a decorative strip (37).

15. Pane unit according to one of claims 11 to 14, characterized in that the guide element (15) is formed from a metallic material, a light metal, or from a fibre composite material, or from wood, and is attached to the inner side (18) of the first pane (12) by an adhesive bond, in particular an adhesive tape (38), an adhesive or an MS-pol-ymer layer, or by back injection moulding.T +44(0)30 0300 2000A

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