WO2002096686A1 - Vitrage automobile de forme complexe - Google Patents
Vitrage automobile de forme complexe Download PDFInfo
- Publication number
- WO2002096686A1 WO2002096686A1 PCT/EP2002/005871 EP0205871W WO02096686A1 WO 2002096686 A1 WO2002096686 A1 WO 2002096686A1 EP 0205871 W EP0205871 W EP 0205871W WO 02096686 A1 WO02096686 A1 WO 02096686A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glazing
- curvatures
- bending
- combination
- glazing according
- Prior art date
Links
Classifications
-
- 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
- B60J1/008—Windows; Windscreens; Accessories therefor of special shape, e.g. beveled edges, holes for attachment, bent windows, peculiar curvatures such as when being integrally formed with roof, door, etc.
-
- 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
- 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
- B60J1/02—Windows; Windscreens; Accessories therefor arranged at the vehicle front, e.g. structure of the glazing, mounting of the glazing
-
- 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
- B60J1/18—Windows; Windscreens; Accessories therefor arranged at the vehicle rear
Definitions
- the invention relates to automobile glazing comprising complex curvatures. More particularly the invention relates to glazings comprise a conjunction of curvatures in two approximately orthogonal directions to each other, and which also at least one of the bends according to one of directions has a small radius of curvature.
- glazing likely to enter those concerned by the invention are typically the rear windows of cars.
- the inventors have had to solve the problem of forming glazings simultaneously comprising curvatures of small radius of curvature, in substantially orthogonal directions, curvatures which are combine on the same part of the glazing surface, and at a certain distance from the edges.
- the inventors had the idea of ensuring that the contour of the glazing before forming was such that the area of competition for curvatures of small radius of curvature , competition that occurs during forming, that this area therefore, be hollowed out, the shape of the contour in this area of the final glazing, being intended to accommodate accessories of the vehicle of corresponding shape.
- the formation of the glazings according to the invention by the recess of the corresponding parts, eliminates the problem of the assistance of curvatures of small radius of curvature on the glazing.
- This solution nevertheless inevitably leads to a cutting of the glazing according to a shape which does not correspond to the usual shapes of the frames in. which these windows are inserted.
- the inventors took advantage of this peculiarity to transform what could have constituted another difficulty into something which interested the builders and their stylists.
- FIG. 1 is a schematic perspective view of a complex shape as envisaged according to the invention
- - Figure 2 is similar to Figure 1, but includes the recess according to the invention
- FIGS. 3a and 3b are diagrams illustrating two typical structures of complex bends that the invention allows to achieve;
- FIG. 4 is, in perspective, the illustration of another complex form according to the invention.
- the figurel represents a complex form of glazing comprising two curvatures in two substantially orthogonal directions. Each of these curvatures further follows radii of variable curvatures along the longitudinal (L) and transverse (T) lines. These curvatures are more intense, in other words the radius of curvature is smaller, in the zones referenced L. ! and T l .
- FIG. 2 illustrates an embodiment of the invention corresponding to the form of glazing shown in Figure 1.
- the rear window has two recesses on either side of the glazing. These recesses correspond to the locations which, in their absence, would correspond to the intersection of the zones of curvature with a small radius.
- the glazing comprises at any point at most one direction of strong curvature.
- the transverse curvature of the "corner” which is removed. Consequently, the bending is possible according to traditional methods by adapting the tools to the initial cutting made on the flat glass, therefore before proceeding with the bending operations.
- the extent of the recess which it is necessary to proceed in order to be able to find a bending according to traditional methods, is of course determined by the shape of the glazing to be produced.
- the shape and dimension must in all cases extend to the depth including one of the two accentuated curvatures.
- the recess in the transverse direction must correspond to the depth t x
- the width of the recess must be sufficient so that the glazed elements folded down R on either side, do not overlap not.
- the cutout is also advantageously used to insert functional elements such as stop lights, position lights or indicators.
- the shape of the cutout in this case is arranged to correspond to the shapes of these elements.
- the edges of the recess if they do not participate in the combination of two small radius curvatures in two substantially orthogonal directions, are nevertheless subject to the deformations of the domings of the remaining parts. For this reason, and to avoid the tendency to more fragile points on which a variable part of the curvature of the bending would be located, it is preferable that the cutting of the hollowed out part be carried out without angular point.
- the cutting of the glass for this obviously has the shape of a curved line whose smallest radius is not less than that of the curvatures introduced by the bending.
- FIG. 1 and in FIG. 2 corresponds to a glazing unit having a combination of two curvatures which are situated on the same side of a plane tangent to the point of intersection of these curvatures.
- This configuration is shown diagrammatically in FIG. 3a.
- the two curves I and II are both above the plane P.
- the case shown schematically in 3b is distinguished in that the two combined curvatures are located on either side of the plane P.
- the difficulty comes from the fact that, at Unlike the previous case, the combined bending would require in the areas where the two curvatures are relatively pronounced, a local stretching of the glass sheet very significantly greater than that which takes place on the rest of the sheet. This stretch cannot be obtained without risk of undesirable deformations.
- FIG. 4 shows an example of implementation of the invention corresponding to the combination of curvatures of the type indicated in connection with FIG. 3b.
- the glazing generally has a transverse curvature of the same type as that of FIGS. 1 and 2.
- the transverse curvatures, over a large part of the glazing are relatively moderate. This part is indicated by the arrow referenced T.
- This main curvature is strongly accentuated on the sides according to the curvature referenced T Longitudinally the sheet has a complex curvature.
- the most difficult part to perform is, as before, that in which the curvatures T 3 and x are combined.
- a localized recess of the sheet is carried out before bending, the recess corresponding to the part of the sheet subjected to one of the accentuated curvatures, at the location where the latter , in the absence of this obviously, would combine with the other accentuated curvature.
- cutouts made in the sheets before bending follow the same principles as those stated above with regard to the embodiment shown in Figure 2.
- the cutout is chosen to correspond to the layout place of functional elements such as vehicle lights.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02745326A EP1444106A1 (fr) | 2001-05-29 | 2002-05-28 | Vitrage automobile de forme complexe |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE2001/0364A BE1014201A3 (fr) | 2001-05-29 | 2001-05-29 | Vitrage automobile de forme complexe. |
BE2001/0364 | 2001-05-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002096686A1 true WO2002096686A1 (fr) | 2002-12-05 |
Family
ID=3897000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/005871 WO2002096686A1 (fr) | 2001-05-29 | 2002-05-28 | Vitrage automobile de forme complexe |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1444106A1 (fr) |
BE (1) | BE1014201A3 (fr) |
WO (1) | WO2002096686A1 (fr) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1213883A (fr) * | 1957-10-31 | 1960-04-05 | Libbey Owens Ford Glass Co | Pare-brise pour véhicule |
FR1242351A (fr) * | 1959-08-19 | 1960-09-30 | Renault | Perfectionnements aux carrosseries de véhicules |
JPS604414A (ja) * | 1983-06-22 | 1985-01-10 | Nissan Motor Co Ltd | 自動車の窓構造 |
-
2001
- 2001-05-29 BE BE2001/0364A patent/BE1014201A3/fr not_active IP Right Cessation
-
2002
- 2002-05-28 EP EP02745326A patent/EP1444106A1/fr not_active Withdrawn
- 2002-05-28 WO PCT/EP2002/005871 patent/WO2002096686A1/fr not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1213883A (fr) * | 1957-10-31 | 1960-04-05 | Libbey Owens Ford Glass Co | Pare-brise pour véhicule |
FR1242351A (fr) * | 1959-08-19 | 1960-09-30 | Renault | Perfectionnements aux carrosseries de véhicules |
JPS604414A (ja) * | 1983-06-22 | 1985-01-10 | Nissan Motor Co Ltd | 自動車の窓構造 |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 009, no. 117 (M - 381) 22 May 1985 (1985-05-22) * |
Also Published As
Publication number | Publication date |
---|---|
EP1444106A1 (fr) | 2004-08-11 |
BE1014201A3 (fr) | 2003-06-03 |
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