CA2281900A1 - Pane setting element, especially glass sun roof for vehicles - Google Patents
Pane setting element, especially glass sun roof for vehicles Download PDFInfo
- Publication number
- CA2281900A1 CA2281900A1 CA002281900A CA2281900A CA2281900A1 CA 2281900 A1 CA2281900 A1 CA 2281900A1 CA 002281900 A CA002281900 A CA 002281900A CA 2281900 A CA2281900 A CA 2281900A CA 2281900 A1 CA2281900 A1 CA 2281900A1
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- CA
- Canada
- Prior art keywords
- composite element
- glass
- glass composite
- plastics material
- element according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/0055—Shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J1/00—Windows; Windscreens; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/74—Moulding material on a relatively small portion of the preformed part, e.g. outsert moulding
- B29C70/76—Moulding on edges or extremities of the preformed part
- B29C70/763—Moulding on edges or extremities of the preformed part the edges being disposed in a substantial flat plane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J10/00—Sealing arrangements
- B60J10/80—Sealing arrangements specially adapted for opening panels, e.g. doors
- B60J10/82—Sealing arrangements specially adapted for opening panels, e.g. doors for movable panels in roofs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J7/00—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs
- B60J7/02—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes
- B60J7/04—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of sliding type, e.g. comprising guide shoes with rigid plate-like element or elements, e.g. open roofs with harmonica-type folding rigid panels
- B60J7/043—Sunroofs e.g. sliding above the roof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2793/00—Shaping techniques involving a cutting or machining operation
- B29C2793/009—Shaping techniques involving a cutting or machining operation after shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
Abstract
In order to improve, at a low finishing cost, the dimensional accuracy of a pane setting element for use in a glass sun roof of a vehicle, the glass panel (3) of which has an external edge injected/coated with a plastic framing (4), while the holding members (5) are also injected/coated and a groove (6) is provided on the external edge of the pane frame for inserting a joint therein, it is suggested that said groove (6) be embodied in the plastic framing (4) after the coating process, using a routing method, resulting in significantly lower tooling cost and reduced pace.
Description
Description Glass composite element, especially glass sliding roof for motor vehicles This invention relates to a glass composite element, especially a glass sliding roof for motor vehicles, comprising a glass plate, which is injection/foam moulded at the outer edge with a plastics material frame, wherein retaining parts are foam moulded in, as well as a surrounding groove provided at the outer periphery of the frame for inserting a seal.
Such glass composite elements, especially glass sliding roofs (often also called sun roofs) are increasingly used in motor vehicles as a replacement for metal sliding roofs, since they give the vehicle interior additional transparency. The glass plate is made as large as possible within the roof opening for this. The plastics material frame surrounding the glass plate, of a thermoplastic material or polyurethane foam, should thus be as narrow as possible. This plastics material frame of the glass sliding roof also serves for fixing is retaining parts, for example tongues, to which the drive mechanism for opening the glass sliding roof is connected, especially when the glass sliding roof is also in the form of a lifting or rising roof or the glass composite element is used as a side ventilation window.
The fixing of the plastics material frame to the glass plate together with the retaining parts assumes substantial importance, since the glass plate of the glass sliding 2o roof should be flush with the roof surface for aerodynamic reasons. Thus the plastics material frame is provided essentially only on the peripheral edge and a narrow region on the underside of the glass sliding roof. Moreover the plastics material frame also has the function of retaining a surrounding seal, in order to ensure a reliable and rain-proof seal.
In general a surrounding groove is provided in the plastics material frame for 2s reliable sealing, which ensures secure fixing of the surrounding seal.
Secure retention of the seal must be ensured in particular to avoid the seal becoming misaligned or folding over. A T-shaped formation of the surrounding groove has proved advantageous for this.
However this groove for insertion of a surrounding seal creates substantial manufacturing problems. Thus this formation requires a very expensive foam or injection moulding tool, 3o since four (or more) sliders have firstly to be extracted separately from the injection moulded groove and then swung away at the four surrounding sides of the glass sliding roof, in order to make removal of the foam or injection moulded glass sliding roof.
These four (or more) sliders for formation of the surrounding groove needed for the manufacture further interfere with the foam flow of the plastics material during the injection or foam moulding operation, so that jointing to the glass plate over the whole area frequently cannot be ensured. Since however this contact surface of the plastics material frame with the glass plate is essential for the strength of the glass composite element, s especially the glass sliding roof, on account of the flush condition at the upper side required by the aerodynamics, the contact areas are frequently over-dimensioned, so that the frame then has to have a relatively wide design, especially when the glass sliding roof is used for high speed motor vehicles, because substantial'forces act on these contact surfaces at high speeds.
Furthermore, with the prior manufacturing methods with four (or more) sliders in the foam moulding tool, there is the disadvantage of a high cycle time, since the four sliders have to be removed from the workpiece, swung up and cleaned, before removal of the workpiece. In addition, the measurement accuracy is often inadequate, on account of the number of tool parts, especially since twisting and thus a certain inaccuracy in z5 measurements can result from the number of sliding surfaces in the tool and development of heat during the manufacture. The same applies to the sliding surfaces of the sliders of the manufacturing tool, so that flashes can occur at the edges of the plastics material frame, which require a lot of finishing work.
Accordingly the invention is based on the object of providing a glass composite 2o element, especially a glass sliding roof, which avoids the above disadvantages, especially the tooling costs, and reduces the cycle time, as well as offering a higher dimensional accuracy with reduced finishing work.
This object is met by the glass composite element according to the features of claim 1.
25 By making the surrounding groove after the injection moulding operation, by means of contour milling machining of the plastics material frame, the plastics material frame can be produced in the injection/foam moulding in a simple foam moulding tool. In particular the expensive sliding and pivoted sliders at the four sides of the tool for the glass composite element of glass sliding roof can be dispensed with. Thus the foam moulding so tool is constructed essentially of only the tool upper part and the tool lower part. This moreover facilities a simpler arrangement of the ejectors and of the sealing surfaces, so that a better seal is achieved during manufacture. The expense of the finishing work is reduced substantially by this. In addition a very good foam flow is achieved by this, so that complete wetting of the glass plate at the lower edge is achieved. The strength between the glass plate and the plastics material frame is increased by this, or is ensured in a reproducible way, so that the quality of the glass composite element or the glass sliding roof is improved overall.
In particular, by contour milling the frame in order to produce the surrounding, preferably T-shaped groove, it is also ensured that the outer contours of the glass sliding roof are kept to exactly and a more secure seat for the surrounding seal is ensured as well.
Finishing work on the outer contour can be effected at the same time as the groove is to milled, as well as flash removal from the outer edges by means of a multiple milling tool.
In particular, by centring during the contour milting, preferably at the retaining parts, an exact relative disposition between the sealing groove and the retaining parts is achieved, so that a uniform application of the seal is obtained when closing or opening the glass composite element, especially a sliding roof, and a better sealing of the roof opening is 15 achieved all in all.
Further advantageous arrangements are the subject matter of the dependent claims.
In particular it should be noted that, in the preferred use of a CNC milling machine for the contour milling of the groove, a simple alteration of the seal dimensions can be effected.
Thus it is possible to adapt for example the seal width to the new dimensions in a simple 2o way, instead of the expensive re-tooling of the foam moulding tool for production changes.
In addition a "mixed" manufacture of the glass composite elements, especially glass sliding roofs, is possible, so that different glass sliding roofs can be produced on one production line. In particular the two-part foam moulding tool can be used for several variants.
An embodiment of the invention will now be explained and described in more 2.5 detail with reference to the drawings, in which:
Fig. 1 shows a glass composite element implemented as a sliding roof in the installed position in a motor vehicle;
Fig. 2 shows the glass sliding roof during production in the foam moulding tool;
and 3o Fig. 3 is an enlarged view of the outer periphery with a schematically shown profile miller for contour milling of a T-shaped groove.
A glass composite element 1 in the form of a glass sliding roof for installation in a _ø
roof opening 2 of a motor vehicle is shown in Fig. 1. The glass sliding roof essentially comprises a glass plate 3, which is surrounded at the outer edge by a plastics material frame 4, preferably of PU foam. This frame 4 is injection or foam moulded on the outer edge of the glass plate 3 in a foam moulding tool (cf. Fig. 2). Retaining parts 5, preferably s angle irons Sa, are moulded in, so that the torsional stiffness of the glass plate 3 is increased on the one hand and, on the other, attachment to the drive mechanism for sliding or raising the glass sliding roof is facilitated.
A surrounding, preferably T-shaped groove 6 for insertion of a seal 7 is provided in the radially outwardly facing edge of the plastics material frame 4, in the plane of the glass to plate 3. In contrast to the state of the art, this T-shaped groove 6 is only made after the injection moulding operation and thus in the hardened and optionally tempered state of the frame 4, by means of contour milling, whereby the advantages recited above result, such as reducing the cycle time and the tooling costs, as well as higher measurement accuracy, since thermal distortion of the glass plate 3 can also be compensated by this.
15 The foam moulding tool 10 is shown schematically in Fig. 2, consisting of a tool upper part 1 l and a tool lower part 12. However, the tool 10 can also be turning through 180°, so that the glass plate 3 is then positioned concavely. As can be seen, the moulding cavity at the outer edge of the glass plate 3 for forming the frame 4 is shown stippled and is shaped to favour the flow, so that reliable filling of the mould is obtained.
2o This is particularly essential, since the glass plate 3 and the retaining parts S are fixed only by the contact surface with the frame 4. As well as the simplified structure, doing away with the four (or more) sliders for the T-shaped groove 6 otherwise needed, the moulding cavity shown stippled here for forming the frame 4 can be sealed especially well, preferably with a self parting sealing plate 13, which reliably prevents the plastics material 2s foam entering preferably through a plurality of injection openings 14 getting on to the top side of the glass plate 3. The upper side of the glass plate 3 is kept clean by this sealing plate 13 during the foam moulding operation, so that hardly any final finishing is needed.
In addition, it is apparent that a reliable seal to ejectors 15 provided further in is possible, so that reliable filling of the moulding cavity with injection around the retaining 3o parts 5 is ensured. Furthermore it is apparent that the tool upper part 11 with the sealing plate 13 extends substantially continuously outwards, so that different kinds of tool lower parts 12 can be used with the same tool upper part 1 I. Thus, on a production line with the same stamp-like tool upper part 11, it is possible to manufacture different variants of the glass composite element 1, e.g. glass sliding roof, with variously position retaining parts 5.
In addition, simple raising of the tool upper part 11 or lowering of the tool lower part 12 suffices for removal of the finished glass sliding roof with the frame 4, so that the cycle time is reduced substantially.
The milling of the surrounding, preferably T-shaped groove 6 in the foam moulded frame 4 with small dimensions is shown to a larger scale in Fig. 3. It should however be noted that the groove 6 can also be made substantially flat and parallel to the plane of the glass plate 3, while a seal with a plurality of flash-shaped detent hooks is then used. With a to T-shaped groove 6, a contour milling cutter 20 with a relative small diameter is used, with which the connection to the T-shaped groove 6 is first effected by axial displacement along its axis of rotation. By traversing the contour milling cutter 20 along the outline of the frame 4 (here perpendicular to the drawing plane), the T-shaped groove 6 is then produced by means of contour milling. After a complete circulation of the contour milling cutter 20, i5 this is withdrawn from the T-shaped groove 6 of the frame 4 at the point of entry. A disc-shaped flash removal tool can also be provided for flash removal and finishing to dimension of the outer face 4a of the plastics material frame 4, as is indicated by the disc-shaped face mill 21. It should be noted however that a milling cutter with cutters which hinge out at higher speeds of rotation can be used or a disc milling cutter with a vertical 2o axis of rotation can be used for a flat slit design of the groove 6, an entry feed into the plastics material of the plastics material frame 4 being effected approximately parallel to the glass plate 3.
The glass plate 3 and the plastics material frame 4 attached thereto is preferably received centred in a vacuum table, not shown (since known per se). In addition or 25 alternatively, the retention during the contour milling of the glass sliding roof or its surrounding plastics material frame 4 can also be effected on the retaining parts 5. A
retaining clamp 22 is shown for this, engaging for example in a bore or stamped opening of the angle iron 5a. As well as the fixing the glass sliding roof is at the same time indexed and a relative positioning to the milling tool 20 and optionally also 21 is thus provided.
3o The contour milling of the groove 6 preferably takes place with a CNC
machine or a copier milling machine. Possible alterations to the dimensions of the groove 6 for adapting to a changed geometry of the seal 7 for example can thus be effected particularly rapidly by simple program changes. As will as the fixing/indexing, the outer contour of the glass composite element 1 produced in the tool 10 can also be effected with a separate measuring device, not shown. For example measuring sensors can engage for this on the retaining parts 5, so that the relative positioning to the profiled milling cutter 20 moving s along the outer contour can again be produced. Slight tolerances, for example from thermal distortion during the manufacture, can be compensated through this particularly well, since the contour milling and the measuring are effected in the cooled state of the frame 4, so that all in all a precise positioning between the retaining parts 5 and the surrounding groove 6 for the seal 7 is achieved. The sealing when installed in the motor vehicle, for example 1o relative to the roof opening 2, is improved overall substantially by this, since a uniform application of the seal is ensured.
Such glass composite elements, especially glass sliding roofs (often also called sun roofs) are increasingly used in motor vehicles as a replacement for metal sliding roofs, since they give the vehicle interior additional transparency. The glass plate is made as large as possible within the roof opening for this. The plastics material frame surrounding the glass plate, of a thermoplastic material or polyurethane foam, should thus be as narrow as possible. This plastics material frame of the glass sliding roof also serves for fixing is retaining parts, for example tongues, to which the drive mechanism for opening the glass sliding roof is connected, especially when the glass sliding roof is also in the form of a lifting or rising roof or the glass composite element is used as a side ventilation window.
The fixing of the plastics material frame to the glass plate together with the retaining parts assumes substantial importance, since the glass plate of the glass sliding 2o roof should be flush with the roof surface for aerodynamic reasons. Thus the plastics material frame is provided essentially only on the peripheral edge and a narrow region on the underside of the glass sliding roof. Moreover the plastics material frame also has the function of retaining a surrounding seal, in order to ensure a reliable and rain-proof seal.
In general a surrounding groove is provided in the plastics material frame for 2s reliable sealing, which ensures secure fixing of the surrounding seal.
Secure retention of the seal must be ensured in particular to avoid the seal becoming misaligned or folding over. A T-shaped formation of the surrounding groove has proved advantageous for this.
However this groove for insertion of a surrounding seal creates substantial manufacturing problems. Thus this formation requires a very expensive foam or injection moulding tool, 3o since four (or more) sliders have firstly to be extracted separately from the injection moulded groove and then swung away at the four surrounding sides of the glass sliding roof, in order to make removal of the foam or injection moulded glass sliding roof.
These four (or more) sliders for formation of the surrounding groove needed for the manufacture further interfere with the foam flow of the plastics material during the injection or foam moulding operation, so that jointing to the glass plate over the whole area frequently cannot be ensured. Since however this contact surface of the plastics material frame with the glass plate is essential for the strength of the glass composite element, s especially the glass sliding roof, on account of the flush condition at the upper side required by the aerodynamics, the contact areas are frequently over-dimensioned, so that the frame then has to have a relatively wide design, especially when the glass sliding roof is used for high speed motor vehicles, because substantial'forces act on these contact surfaces at high speeds.
Furthermore, with the prior manufacturing methods with four (or more) sliders in the foam moulding tool, there is the disadvantage of a high cycle time, since the four sliders have to be removed from the workpiece, swung up and cleaned, before removal of the workpiece. In addition, the measurement accuracy is often inadequate, on account of the number of tool parts, especially since twisting and thus a certain inaccuracy in z5 measurements can result from the number of sliding surfaces in the tool and development of heat during the manufacture. The same applies to the sliding surfaces of the sliders of the manufacturing tool, so that flashes can occur at the edges of the plastics material frame, which require a lot of finishing work.
Accordingly the invention is based on the object of providing a glass composite 2o element, especially a glass sliding roof, which avoids the above disadvantages, especially the tooling costs, and reduces the cycle time, as well as offering a higher dimensional accuracy with reduced finishing work.
This object is met by the glass composite element according to the features of claim 1.
25 By making the surrounding groove after the injection moulding operation, by means of contour milling machining of the plastics material frame, the plastics material frame can be produced in the injection/foam moulding in a simple foam moulding tool. In particular the expensive sliding and pivoted sliders at the four sides of the tool for the glass composite element of glass sliding roof can be dispensed with. Thus the foam moulding so tool is constructed essentially of only the tool upper part and the tool lower part. This moreover facilities a simpler arrangement of the ejectors and of the sealing surfaces, so that a better seal is achieved during manufacture. The expense of the finishing work is reduced substantially by this. In addition a very good foam flow is achieved by this, so that complete wetting of the glass plate at the lower edge is achieved. The strength between the glass plate and the plastics material frame is increased by this, or is ensured in a reproducible way, so that the quality of the glass composite element or the glass sliding roof is improved overall.
In particular, by contour milling the frame in order to produce the surrounding, preferably T-shaped groove, it is also ensured that the outer contours of the glass sliding roof are kept to exactly and a more secure seat for the surrounding seal is ensured as well.
Finishing work on the outer contour can be effected at the same time as the groove is to milled, as well as flash removal from the outer edges by means of a multiple milling tool.
In particular, by centring during the contour milting, preferably at the retaining parts, an exact relative disposition between the sealing groove and the retaining parts is achieved, so that a uniform application of the seal is obtained when closing or opening the glass composite element, especially a sliding roof, and a better sealing of the roof opening is 15 achieved all in all.
Further advantageous arrangements are the subject matter of the dependent claims.
In particular it should be noted that, in the preferred use of a CNC milling machine for the contour milling of the groove, a simple alteration of the seal dimensions can be effected.
Thus it is possible to adapt for example the seal width to the new dimensions in a simple 2o way, instead of the expensive re-tooling of the foam moulding tool for production changes.
In addition a "mixed" manufacture of the glass composite elements, especially glass sliding roofs, is possible, so that different glass sliding roofs can be produced on one production line. In particular the two-part foam moulding tool can be used for several variants.
An embodiment of the invention will now be explained and described in more 2.5 detail with reference to the drawings, in which:
Fig. 1 shows a glass composite element implemented as a sliding roof in the installed position in a motor vehicle;
Fig. 2 shows the glass sliding roof during production in the foam moulding tool;
and 3o Fig. 3 is an enlarged view of the outer periphery with a schematically shown profile miller for contour milling of a T-shaped groove.
A glass composite element 1 in the form of a glass sliding roof for installation in a _ø
roof opening 2 of a motor vehicle is shown in Fig. 1. The glass sliding roof essentially comprises a glass plate 3, which is surrounded at the outer edge by a plastics material frame 4, preferably of PU foam. This frame 4 is injection or foam moulded on the outer edge of the glass plate 3 in a foam moulding tool (cf. Fig. 2). Retaining parts 5, preferably s angle irons Sa, are moulded in, so that the torsional stiffness of the glass plate 3 is increased on the one hand and, on the other, attachment to the drive mechanism for sliding or raising the glass sliding roof is facilitated.
A surrounding, preferably T-shaped groove 6 for insertion of a seal 7 is provided in the radially outwardly facing edge of the plastics material frame 4, in the plane of the glass to plate 3. In contrast to the state of the art, this T-shaped groove 6 is only made after the injection moulding operation and thus in the hardened and optionally tempered state of the frame 4, by means of contour milling, whereby the advantages recited above result, such as reducing the cycle time and the tooling costs, as well as higher measurement accuracy, since thermal distortion of the glass plate 3 can also be compensated by this.
15 The foam moulding tool 10 is shown schematically in Fig. 2, consisting of a tool upper part 1 l and a tool lower part 12. However, the tool 10 can also be turning through 180°, so that the glass plate 3 is then positioned concavely. As can be seen, the moulding cavity at the outer edge of the glass plate 3 for forming the frame 4 is shown stippled and is shaped to favour the flow, so that reliable filling of the mould is obtained.
2o This is particularly essential, since the glass plate 3 and the retaining parts S are fixed only by the contact surface with the frame 4. As well as the simplified structure, doing away with the four (or more) sliders for the T-shaped groove 6 otherwise needed, the moulding cavity shown stippled here for forming the frame 4 can be sealed especially well, preferably with a self parting sealing plate 13, which reliably prevents the plastics material 2s foam entering preferably through a plurality of injection openings 14 getting on to the top side of the glass plate 3. The upper side of the glass plate 3 is kept clean by this sealing plate 13 during the foam moulding operation, so that hardly any final finishing is needed.
In addition, it is apparent that a reliable seal to ejectors 15 provided further in is possible, so that reliable filling of the moulding cavity with injection around the retaining 3o parts 5 is ensured. Furthermore it is apparent that the tool upper part 11 with the sealing plate 13 extends substantially continuously outwards, so that different kinds of tool lower parts 12 can be used with the same tool upper part 1 I. Thus, on a production line with the same stamp-like tool upper part 11, it is possible to manufacture different variants of the glass composite element 1, e.g. glass sliding roof, with variously position retaining parts 5.
In addition, simple raising of the tool upper part 11 or lowering of the tool lower part 12 suffices for removal of the finished glass sliding roof with the frame 4, so that the cycle time is reduced substantially.
The milling of the surrounding, preferably T-shaped groove 6 in the foam moulded frame 4 with small dimensions is shown to a larger scale in Fig. 3. It should however be noted that the groove 6 can also be made substantially flat and parallel to the plane of the glass plate 3, while a seal with a plurality of flash-shaped detent hooks is then used. With a to T-shaped groove 6, a contour milling cutter 20 with a relative small diameter is used, with which the connection to the T-shaped groove 6 is first effected by axial displacement along its axis of rotation. By traversing the contour milling cutter 20 along the outline of the frame 4 (here perpendicular to the drawing plane), the T-shaped groove 6 is then produced by means of contour milling. After a complete circulation of the contour milling cutter 20, i5 this is withdrawn from the T-shaped groove 6 of the frame 4 at the point of entry. A disc-shaped flash removal tool can also be provided for flash removal and finishing to dimension of the outer face 4a of the plastics material frame 4, as is indicated by the disc-shaped face mill 21. It should be noted however that a milling cutter with cutters which hinge out at higher speeds of rotation can be used or a disc milling cutter with a vertical 2o axis of rotation can be used for a flat slit design of the groove 6, an entry feed into the plastics material of the plastics material frame 4 being effected approximately parallel to the glass plate 3.
The glass plate 3 and the plastics material frame 4 attached thereto is preferably received centred in a vacuum table, not shown (since known per se). In addition or 25 alternatively, the retention during the contour milling of the glass sliding roof or its surrounding plastics material frame 4 can also be effected on the retaining parts 5. A
retaining clamp 22 is shown for this, engaging for example in a bore or stamped opening of the angle iron 5a. As well as the fixing the glass sliding roof is at the same time indexed and a relative positioning to the milling tool 20 and optionally also 21 is thus provided.
3o The contour milling of the groove 6 preferably takes place with a CNC
machine or a copier milling machine. Possible alterations to the dimensions of the groove 6 for adapting to a changed geometry of the seal 7 for example can thus be effected particularly rapidly by simple program changes. As will as the fixing/indexing, the outer contour of the glass composite element 1 produced in the tool 10 can also be effected with a separate measuring device, not shown. For example measuring sensors can engage for this on the retaining parts 5, so that the relative positioning to the profiled milling cutter 20 moving s along the outer contour can again be produced. Slight tolerances, for example from thermal distortion during the manufacture, can be compensated through this particularly well, since the contour milling and the measuring are effected in the cooled state of the frame 4, so that all in all a precise positioning between the retaining parts 5 and the surrounding groove 6 for the seal 7 is achieved. The sealing when installed in the motor vehicle, for example 1o relative to the roof opening 2, is improved overall substantially by this, since a uniform application of the seal is ensured.
Claims (12)
1. Glass composite element, especially a glass sliding roof for motor vehicles, comprising a glass plate (3), which is injection/foam moulded at the outer edge with a plastics material frame (4), wherein retaining parts (5) are foam moulded in, as well as a surrounding groove (6) provided at the outer periphery of the frame for inserting a seal, characterized in that the groove (6) is produced in the plastics material frame (4) after the foam moulding operation by means of contour milling.
2. Glass composite element according to claim 1, characterized in that the upper side (4b) of the plastics material frame (4) is flush with the glass plate (3).
3. Glass composite element according to claim 1 or 2, characterized in that the glass plate (3) together with the plastics material frame (4) is received centred in vacuum table or clamp device for the contour milling.
4. Glass composite element according to any of claims 1 to 3, characterized in that the glass composite element (1) is indexed and/or fixed during the contour milling on the retaining parts (5) during the contour milling.
5. Glass composite element according to any of claims 1 to 4, characterized in that the retaining parts (5) are formed by angle irons (5a) which are completely covered by the plastics material frame (4).
6. Glass composite element according to any of claims 3 to 5, characterized in that the centring of the glass composite element (1) for the contour milling is effected by means of a separate measuring device, especially measuring sensors on the retaining parts (5).
7. Glass composite element according to any of claims 1 to 6, characterized in that a CNC milling machine is provided for the contour milling of the groove (6) of the glass composite element (1).
8. Glass composite element according to any of claims 1 to 6, characterized in that a copier milling machine is provided for the contour milling of the groove (6) of the glass composite element (1).
9. Glass composite element according to any of claims 1 to 8, characterized in that the peripheral edge (4a) and/or the lower edge (4c) of the plastics material frame (4) is/are machined together with the contour milling of the groove (6) in one operating step.
10. Glass composite element according to any of claims 1 to 9, characterized in that a flash removal operation for the peripheral surfaces (4a, 4b, 4c) of the plastics material frame (4) is provided in the contour milling of the groove (6).
11. Glass composite element according to any of claims 1 to 10, characterized in that a sealing plate (13) is inserted between the tool upper part (11) and the tool lower part (12) so as essentially to continue the bowing of the opposite abutment surfaces on the glass plate (3).
12. A method of making a glass composite element, especially a glass sliding roof for motor vehicles, comprising a glass plate (3), which is injection/foam moulded at the outer edge with a plastics material frame (4), wherein retaining parts (5) are foam moulded in, characterized in that the outer periphery of the frame (4) is machined by contour milling after the foam moulding operation to receive a surrounding seal (7).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29703561U DE29703561U1 (en) | 1997-02-27 | 1997-02-27 | Glass composite element, in particular glass sliding roof for motor vehicles |
| DE29703561.4 | 1997-02-27 | ||
| PCT/EP1998/001101 WO1998038058A1 (en) | 1997-02-27 | 1998-02-26 | Pane setting element, especially glass sun roof for vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2281900A1 true CA2281900A1 (en) | 1998-09-03 |
Family
ID=8036666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002281900A Abandoned CA2281900A1 (en) | 1997-02-27 | 1998-02-26 | Pane setting element, especially glass sun roof for vehicles |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0963305B1 (en) |
| JP (1) | JP2001513045A (en) |
| KR (1) | KR20000075743A (en) |
| AT (1) | ATE204812T1 (en) |
| AU (1) | AU6824498A (en) |
| BR (1) | BR9807859A (en) |
| CA (1) | CA2281900A1 (en) |
| DE (3) | DE29703561U1 (en) |
| ES (1) | ES2162436T3 (en) |
| WO (1) | WO1998038058A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19852383B4 (en) | 1998-11-13 | 2007-01-25 | Webasto Ag | Roof module for a vehicle and method of making the same |
| DE19923725C1 (en) * | 1999-05-22 | 2000-07-20 | Webasto Vehicle Sys Int Gmbh | Cover for vehicle roof opening has cover plate edged by hard plastic frame with milled seal-seating groove |
| DE20005946U1 (en) * | 2000-04-01 | 2001-05-10 | Bbg Braunsberger Gmbh & Co Kg | Fixing device for mounting parts on flat components, especially glass panels |
| DE10064745A1 (en) * | 2000-12-22 | 2002-07-11 | Webasto Vehicle Sys Int Gmbh | Molding tool and method for molding a profiled multi-sided plastic frame part onto a plate-shaped object at the edge |
| DE10107743A1 (en) * | 2001-02-16 | 2002-09-05 | Webasto Vehicle Sys Int Gmbh | Device for foaming a transparent pane for a vehicle roof |
| DE10118825B4 (en) * | 2001-04-17 | 2008-01-31 | Webasto Ag | Tool for foaming components on a vehicle window |
| DE10150011B4 (en) * | 2001-10-11 | 2007-03-15 | Webasto Ag | Cover for a vehicle roof and method for its manufacture |
| DE10155170B4 (en) * | 2001-11-12 | 2004-08-26 | Webasto Vehicle Systems International Gmbh | Flat glass element for a vehicle roof and method for producing the same |
| DE10213994A1 (en) * | 2002-03-27 | 2003-10-16 | Arvinmeritor Gmbh | Movable cover for vehicle roof and sliding / lifting roof module |
| DE102014114414A1 (en) | 2014-10-03 | 2016-04-07 | Bbg Gmbh & Co. Kg | Frame construction for a glass pane and method for its production |
| DE102015112119A1 (en) * | 2015-07-24 | 2017-01-26 | Webasto SE | Vehicle roof with glass lid element |
| CN106042865A (en) * | 2016-07-22 | 2016-10-26 | 安徽省地坤汽车天窗科技有限公司 | Automobile skylight with sealing strips |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2127227A1 (en) * | 1971-06-02 | 1972-12-14 | Hering R | Profiled plastic edging strips - form locking and possibly bonding, to the edges of plates or panels |
| DE2246913A1 (en) * | 1972-09-25 | 1974-04-11 | Bosse Fa Otto | Plastic peripheral frame for panel - placing panel in moulding chest, filling space between panel edge and wall of chest with synthetic resin and curing resin |
| DE3232700C2 (en) * | 1982-09-02 | 1986-03-13 | Metzeler Kautschuk GmbH, 8000 München | Device for the continuous application of a decorative strip to a rubber profile |
| DE3506009A1 (en) * | 1985-02-21 | 1986-08-28 | Rockwell Golde Gmbh, 6000 Frankfurt | RIGID LID FOR A VEHICLE ROOF |
-
1997
- 1997-02-27 DE DE29703561U patent/DE29703561U1/en not_active Expired - Lifetime
-
1998
- 1998-02-26 KR KR1019997007813A patent/KR20000075743A/en not_active Application Discontinuation
- 1998-02-26 CA CA002281900A patent/CA2281900A1/en not_active Abandoned
- 1998-02-26 EP EP98913600A patent/EP0963305B1/en not_active Expired - Lifetime
- 1998-02-26 DE DE19808113A patent/DE19808113A1/en not_active Withdrawn
- 1998-02-26 WO PCT/EP1998/001101 patent/WO1998038058A1/en not_active Application Discontinuation
- 1998-02-26 AU AU68244/98A patent/AU6824498A/en not_active Abandoned
- 1998-02-26 AT AT98913600T patent/ATE204812T1/en not_active IP Right Cessation
- 1998-02-26 JP JP53731798A patent/JP2001513045A/en active Pending
- 1998-02-26 BR BR9807859-3A patent/BR9807859A/en not_active Application Discontinuation
- 1998-02-26 DE DE59801309T patent/DE59801309D1/en not_active Expired - Lifetime
- 1998-02-26 ES ES98913600T patent/ES2162436T3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BR9807859A (en) | 2000-02-22 |
| JP2001513045A (en) | 2001-08-28 |
| WO1998038058A1 (en) | 1998-09-03 |
| DE29703561U1 (en) | 1997-06-05 |
| DE19808113A1 (en) | 1998-09-24 |
| DE59801309D1 (en) | 2001-10-04 |
| ES2162436T3 (en) | 2001-12-16 |
| EP0963305A1 (en) | 1999-12-15 |
| EP0963305B1 (en) | 2001-08-29 |
| AU6824498A (en) | 1998-09-18 |
| KR20000075743A (en) | 2000-12-26 |
| ATE204812T1 (en) | 2001-09-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |