WO2008153484A1 - Method for fastening a windowpane - Google Patents

Method for fastening a windowpane Download PDF

Info

Publication number
WO2008153484A1
WO2008153484A1 PCT/SE2008/050663 SE2008050663W WO2008153484A1 WO 2008153484 A1 WO2008153484 A1 WO 2008153484A1 SE 2008050663 W SE2008050663 W SE 2008050663W WO 2008153484 A1 WO2008153484 A1 WO 2008153484A1
Authority
WO
WIPO (PCT)
Prior art keywords
windowpane
window frame
positioning elements
edge region
edge
Prior art date
Application number
PCT/SE2008/050663
Other languages
French (fr)
Inventor
Johan KNÄLMANN
Kenneth Söder
Original Assignee
Scania Cv Ab (Publ)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Scania Cv Ab (Publ) filed Critical Scania Cv Ab (Publ)
Priority to DE112008001607T priority Critical patent/DE112008001607T5/en
Publication of WO2008153484A1 publication Critical patent/WO2008153484A1/en

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
    • B60J1/004—Mounting of windows
    • B60J1/006—Mounting of windows characterised by fixation means such as clips, adhesive, 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
    • B60J10/00—Sealing arrangements
    • B60J10/30—Sealing arrangements characterised by the fastening means
    • B60J10/34—Sealing arrangements characterised by the fastening means using adhesives
    • 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
    • B60J10/30—Sealing arrangements characterised by the fastening means
    • 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
    • B60J10/30—Sealing arrangements characterised by the fastening means
    • B60J10/34—Sealing arrangements characterised by the fastening means using adhesives
    • B60J10/345—Sealing arrangements characterised by the fastening means using adhesives with formless adhesives, e.g. hot melt
    • 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
    • B60J10/30—Sealing arrangements characterised by the fastening means
    • B60J10/36—Sealing arrangements characterised by the fastening means using separately inserted fastening means, e.g. using clips, beads or strips
    • 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
    • B60J10/70—Sealing arrangements specially adapted for windows or windscreens

Definitions

  • the present invention relates to a method for fastening a windowpane in a window aperture of a motor vehicle, which windowpane is made of a transparent material and has an inside, an outside and an edge region with an edge side which extends round the windowpane, which window aperture is defined by a window frame which has a first surface which, at least when the windowpane is in a desired defined position relative to the window frame, faces towards the inside of the windowpane, and an edge region with an edge surface which in the defined position faces towards the edge side.
  • the present invention also relates to a motor vehicle according to the preamble of claim 11.
  • the fitting and fastening of a windowpane in a window aperture of a motor vehicle, especially the front pane or windscreen, is problematic.
  • the commonest technique today for the fastening of front panes is to bond them adhesively to the window frame which extends round and defines the window aperture.
  • the problem with fitting and fastening by this technique arises primarily from the difficulty of achieving a uniform thickness of adhesive round the whole periphery of the front pane, which means that with an unsatisfactory fastening technique the distance between the window frame and the inside of the front pane will vary.
  • An adhesive seam of uniform thickness is essential for ensuring sufficiently good adhesion and tightness. If for example the adhesive seam is too thin, it is possible that the windowpane will not adhere to the window frame, leading to the possibility of leakage.
  • An adhesive seam of uniform thickness is of course also essential for ensuring that the front pane sits securely in position on the window frame.
  • US-A-4,606,159 refers to a fastening placing method using a number of fitting tabs fastened by adhesive to the inside of the windscreen.
  • the fitting tabs are made of bendable metal and have originally an S-like shape with a first flank extending parallel with and abutting against the inside of the windscreen, and a second flank extending parallel with the first flank but at a distance from the inside of the windscreen. This flank is applied to the window frame.
  • Fitting the windscreen involves bending the second flank of the fitting tabs round the window frame so that the windscreen is at least partly fastened, while at the same time the windscreen is to some extent positioned relative to the window aperture.
  • US-A-4,531,335 refers to another way of fastening a windscreen to a window frame of a motor vehicle, using elastic fitting clips which extend round the edge side of the windscreen and are configured to hook firmly in the window frame, with a portion of each clip extending round the inner edge of the window frame. In this case no adhesive seam is used but the windscreen is pressed by the clips against a gasket fastened to the window frame.
  • EP-A-117816 refers to another way of fastening a windscreen to a window frame in a motor vehicle, using a strip which extends round the periphery of the pane.
  • the strip defines the distance between the pane and the window frame but there is no assurance of the windscreen not departing from the smallest possible distance defined by the strip.
  • the object of the present invention is to provide a method for improving the fastening of a windowpane to a window frame in a motor vehicle. It refers more specifically to a method which ensures an adhesive seam of uniform thickness between the windowpane and the window frame.
  • This object is achieved with the method indicated in the introduction which comprises the steps of: fitting the windowpane to the window frame by applying an adhesive seam on at least the first surface and by pushing the windowpane in an insertion direction towards the window frame via a plurality of positioning elements which by snap action make it possible to achieve the defined position, with the adhesive seam adhering to at least the inside and the first surface, and hardening the adhesive seam, whereby the positioning elements are fastened in the adhesive seam and the windowpane is fixed in the defined position.
  • the windowpane can be applied quickly and easily in the desired defined position.
  • the positioning elements ensure that the windowpane ends up at a predetermined exact or substantially exact distance from the outward- facing first surface of the window frame. It is thus possible to ensure that the adhesive seam has a uniform thickness along the whole edge region of the windowpane. There is thus assurance that the windowpane will sit firmly in the window frame and any leakage risk can be reduced.
  • the windowpane is held to the window frame by the positioning elements makes it possible for the body or cab of the motor vehicle to be handled immediately after the insertion of the windowpane, without having to wait for the adhesive seam to harden. Manufacturing efficiency is thus substantially improved.
  • a further advantage is that the amount of adhesive required for the adhesive seam can be minimised when the thickness of the adhesive seam is kept substantially constant.
  • the positioning elements are distributed along the edge regions.
  • the number of such positioning elements may with advantage be at least 4, 5, 6, 7, 8 or more.
  • the positioning elements may be substantially evenly distributed round the edge regions.
  • a large number of positioning elements distributed round the edge regions ensures that the thickness of the adhesive seam can be kept uniform along the whole periphery and that the windowpane is kept sufficiently steady relative to the window frame until the adhesive seam has hardened, irrespective of whether the motor vehicle is to be handled or not.
  • each positioning element comprises a resilient slide surface and a resilient grip section which is arranged close to the slide surface.
  • the edge region intended to snap into the positioning elements can slide on the resilient slide surface, whereupon the latter bends away and the respective edge region snaps into the resilient grip section which can thereafter grip round and at least partly enclose the respective edge region.
  • each positioning element comprises a fastening means arranged at a specified distance from the slide surface for determining the distance between the inside of the windowpane and the first surface of the window frame in the defined position.
  • the fastening means is adapted to being fastened to the edge region of either the windowpane or the window frame. Thereafter the edge region of the other one out of the windowpane and the window frame can be pushed onto the positioning elements and be gripped by the grip section.
  • the positioning elements may be fastened to one of the edge regions by the fastening means gripping round said edge region. Such positioning elements can easily and quickly be fastened on the respective edge region before the insertion operation.
  • the positioning elements are fastened to the edge region of the window frame, followed by the windowpane being inserted in such a way that the edge region of the windowpane snaps into the resilient grip section of the positioning elements.
  • the positioning elements are thus fitted as a first step on the edge region of the window frame by the fastening means being, for example, quite simply pushed onto the window frame.
  • the positioning elements are fastened to the edge region of the windowpane, followed by the windowpane being inserted in such a way that the edge region of the window frame snaps into the resilient grip section of the positioning elements. In this case the positioning elements are thus fastened as an initial step to the edge region of the windowpane, e.g. by the fastening means being pushed onto the windowpane.
  • the adhesive seam is arranged by applying adhesive to the first surface and the edge surface.
  • the adhesive seam after hardening, will adhere to the first surface and the opposite inside and to the edge surface and the opposite edge side.
  • the windowpane will thus sit securely relative to the window frame.
  • the adhesive seam is arranged by applying adhesive on at least the first surface before inserting the windowpane.
  • the adhesive seam can easily be applied in this way before the windowpane is placed.
  • the adhesive seam is created by applying adhesive on at least the first surface after inserting the windowpane, whereby the adhesive seam is introduced between the windowpane and the window frame.
  • the object of the invention is also achieved with the motor vehicle indicated in the introduction which is characterised in that the positioning elements are configured to hold the windowpane and the window frame in the defined position by snap action.
  • FIG. 1 depicts a side view of a motor vehicle with a windowpane according to the invention.
  • Fig. 2 depicts a plan view of a windowpane arranged in a window frame.
  • Fig. 3 depicts a cross-sectional view through a windowpane and a window frame according to a first embodiment of the invention.
  • Fig. 4 depicts a cross-sectional view through a windowpane and a window frame according to a second embodiment of the invention.
  • Fig. 1 depicts a motor vehicle 1 of the heavy vehicle type and more specifically a truck.
  • the invention is applicable to all types of vehicles but is particularly preferred for heavy vehicles of the truck and bus type composed of a framework and a body mounted thereon.
  • the body comprises a plurality of window apertures with fixed windows, i.e. windows which cannot be opened.
  • the invention is applicable to all such windows which are not openable but is described below with reference to a windowpane which constitutes a front pane or windscreen of the motor vehicle.
  • the motor vehicle 1 comprises a window aperture 2 with a forward windowpane 3, see Fig. 2.
  • the windowpane 3 is made of a transparent material, e.g. a glasslike material, and has an inside 4, an outside 5 and an edge region 6 with an edge side 7 which extends round the whole periphery of the windowpane 3.
  • the window aperture 2 is defined by a window frame 13 which has a first surface 14 which, when the windowpane 3 is a desired defined position relative to the window frame 13, faces towards the inside 4 of the windowpane, and a second surface 15 which faces away from the windowpane 3.
  • the window frame 13 also has an edge region 16 with an edge surface 17, which extends outwards from the first surface 14 and which in the defined position faces towards the edge side 7 of the windowpane 3.
  • the window frame 13 further has an end side 18 which connects the first surface 14 and the second surface 15.
  • the windowpane 3 is fitted to the window frame 13 by an adhesive seam 20 which adheres to at least the inside 4 of the windowpane 3 and the first surface 14 of the window frame 13.
  • the adhesive seam 20 also adheres to the edge side 7 of the windowpane 3 and the edge surface 17 of the window frame 13.
  • the windowpane 3 is also fitted to the window frame 13 via a plurality of positioning elements 30 which in the finally fitted state in the desired defined position are fastened in the adhesive seam 20.
  • the positioning elements 30 are configured to hold the windowpane 3 and the window frame 13 in the defined position by snap action.
  • the positioning elements 30 are made of a suitably elastic resilient material, preferably some suitable plastic material or metal.
  • the windowpane 3 in cases where it constitutes a windscreen is usually somewhat curved, e.g. as a so-called panorama window, although this is not illustrated in the drawings.
  • the fact that the windowpane 3 is curved increases the difficulty of achieving an adhesive seam which is uniform.
  • the windowpane may of course also be planar.
  • the positioning elements 30 are distributed along the edge regions 6 and 16.
  • the number of such positioning elements 30 may be chosen according to the intended application, e.g. the size of the windowpane 3. With advantage, the number of positioning elements 30 may be at least 4, 5, 6, 7, 8 or more.
  • the positioning elements 30 may be substantially evenly distributed round the edge regions 6 and 16.
  • Each positioning element 30 comprises a resilient slide surface 31 and a resilient grip section 32 which is arranged close to the slide surface 31.
  • the grip section 32 is configured to extend round and grip one of the edge regions 6 and 16 when the latter has, by the aforesaid snap action, snapped into the grip section 32.
  • the respective edge region 6 or 16 thus slides on the slide surface 31 and, owing to the elastic characteristics of the positioning element 30, pushes the latter away and snaps thereafter into the grip section 32, whereupon the slide surface 31 springs back so that the edge region 6 or 16 is gripped and locked in the grip section 32.
  • the edge region 6 or 16 may abut against an end surface 34 which is directly adjacent to and forms an angle with the slide surface 31.
  • the slide surface 31 may be constituted by a pointed end section 35 of the positioning element 30.
  • Each positioning element 30 further comprises a fastening means 33 arranged at a specified distance from the slide surface 31 for determining the distance between the inside 4 of the windowpane 3 and the first surface 14 of the window frame 13 in the defined position.
  • the fastening means 33 is configured to extend partly round and partly surround an edge region 6 or 16.
  • the fastening means 33 thus grips one of the edge regions as a result of the elastic characteristics of the positioning element 30, whereby three inner surfaces of the fastening means 33 abut against the three surfaces which define the edge region 6 or 16. Owing to the grip section 32 and the fastening means 33, each positioning element 30 thus has an S-like shape when viewed from the side, as illustrated in Figs. 3 and 4.
  • a plurality of positioning elements 30 are fastened along the window frame 13 by the fastening means 33 being pushed onto and gripping the edge region 16, whereby the aforesaid three inner surfaces of the fastening means 33 abut against the first surface 14, the second surface 15 and the end side 18.
  • the windowpane 3 is applied by being pushed in an insertion direction P towards the window frame 13 in such a way that the windowpane 3 enters into engagement with the positioning elements 30 and, more specifically, so that the edge region 6 slides on the slide surface 31 of the positioning elements 30 and snaps into the grip section 32.
  • the windowpane 3 has reached the desired defined position.
  • an adhesive seam 20 is applied by adhesive being introduced between the edge side 7 and inside 4 of the windowpane 3 and the edge surface 17 and first surface 14 of the window frame 13.
  • the adhesive seam 20 is thereafter caused to harden, thereby fastening and fixing the windowpane 3 relative to the window frame 13 and fastening the positioning elements 30 in the adhesive seam 20.
  • the end section 35 may, if so desired, be removed in a suitable manner, e.g. by being broken or cut off so that the positioning elements 30 do not protrude beyond the outside 5 of the windowpane 3.
  • a suitably configured cover strip 40 may be placed outside and round the adhesive seam 20 and the edge region 6 of the windowpane 3. Part of such a cover strip 40, covering the adhesive seam 20, appears in Fig. 2.
  • the positioning elements 30 may with advantage be configured so that they allow the fastening of such a cover strip 40, e.g. by snap action.
  • the end sections 35 may also be configured to allow such fastening of the cover strip 40 by their being removed or bent in such a way that they allow the fastening of the cover strip 40.
  • Example 2 differs from example 1 in that the adhesive is applied on the edge surface 17 and first surface 14 of the window frame 13 before the windowpane 3 is applied but after the positioning elements 30 have been applied on the window frame 13.
  • Example 3 differs from example 1 in that the adhesive is also applied on the edge surface 17 and first surface 14 of the window frame 13 before the positioning elements 30 are applied on the window frame 13.
  • Example 4 see Fig. 4
  • a plurality of positioning elements 30 are fastened along the windowpane 3 by the fastening means 33 being pushed onto and gripping the edge region 6, whereby the aforesaid three inner surfaces of the fastening means 33 abut against the inside 4, the outside 5 and the edge side 7.
  • the windowpane 3 is applied by being pushed in an insertion direction towards the window frame 13 in such a way that the window frame 13 enters into engagement with the positioning elements 30 and, more specifically, so that the edge region 16 slides on the slide surface 31 of the positioning elements 30 and snaps into the grip section 32.
  • the windowpane 3 has reached the desired defined position.
  • an adhesive seam 20 is applied by adhesive being introduced between the edge side 7 and inside 4 of the windowpane 3 and the edge surface 17 and first surface 14 of the window frame 13.
  • the adhesive seam 20 is thereafter caused to harden, thereby fastening and fixing the windowpane 3 relative to the window frame 13 and fastening the positioning elements 30 in the adhesive seam 20.
  • the end sections 36 may, if so desired, be removed in a suitable manner so that positioning elements 30 do not protrude beyond the second surface 15 of the window frame 13.
  • a suitably configured cover strip may be applied outside and round the adhesive seam 20 and the edge region 6 of the windowpane 3.
  • Example 5 differs from example 4 in that the adhesive is applied on the edge surface 17 and first surface 14 of the window frame 13 before the windowpane 3 with the positioning elements 30 is applied.
  • the invention is not limited to the embodiments depicted but may be varied and modified within the scope of the claims set out below.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Window Of Vehicle (AREA)

Abstract

The invention relates to a motor vehicle and a method for fastening a windowpane (3) made of a transparent material in a window aperture of the motor vehicle. The windowpane has an inside (4), an outside (5) and an edge region (6) with an edge side (7) which extends round the windowpane. The window aperture is defined by a window frame (13) which has a first surface (14) which in a desired defined position faces towards the inside of the windowpane, and an edge region (16) with an edge surface (17) which in the defined position faces towards the edge side. The windowpane is fitted to the window frame by means of an adhesive seam (20) which adheres to the first surface and the inside. The windowpane is also fitted to the window frame via a plurality of the positioning elements (30) which are fastened in the adhesive seam. The positioning elements hold the windowpane and the window frame in the defined position by snap action.

Description

Method for fastening a windowpane
BACKGROUND TO THE INVENTION AND STATE OF THE ART
The present invention relates to a method for fastening a windowpane in a window aperture of a motor vehicle, which windowpane is made of a transparent material and has an inside, an outside and an edge region with an edge side which extends round the windowpane, which window aperture is defined by a window frame which has a first surface which, at least when the windowpane is in a desired defined position relative to the window frame, faces towards the inside of the windowpane, and an edge region with an edge surface which in the defined position faces towards the edge side.
The present invention also relates to a motor vehicle according to the preamble of claim 11.
The fitting and fastening of a windowpane in a window aperture of a motor vehicle, especially the front pane or windscreen, is problematic. The commonest technique today for the fastening of front panes is to bond them adhesively to the window frame which extends round and defines the window aperture. The problem with fitting and fastening by this technique arises primarily from the difficulty of achieving a uniform thickness of adhesive round the whole periphery of the front pane, which means that with an unsatisfactory fastening technique the distance between the window frame and the inside of the front pane will vary. An adhesive seam of uniform thickness is essential for ensuring sufficiently good adhesion and tightness. If for example the adhesive seam is too thin, it is possible that the windowpane will not adhere to the window frame, leading to the possibility of leakage. An adhesive seam of uniform thickness is of course also essential for ensuring that the front pane sits securely in position on the window frame.
Various methods are known from the literature for the fastening of front panes of motor vehicles. US-A-4,606,159 refers to a fastening placing method using a number of fitting tabs fastened by adhesive to the inside of the windscreen. The fitting tabs are made of bendable metal and have originally an S-like shape with a first flank extending parallel with and abutting against the inside of the windscreen, and a second flank extending parallel with the first flank but at a distance from the inside of the windscreen. This flank is applied to the window frame. Fitting the windscreen involves bending the second flank of the fitting tabs round the window frame so that the windscreen is at least partly fastened, while at the same time the windscreen is to some extent positioned relative to the window aperture. An adhesive seam is applied between the window frame and the inside of the windscreen and extends up to the fitting tabs. Fitting with such fitting tabs is an intricate process. It also involves difficulties in fastening the fitting tabs in a correct manner and in correct positions on the inside of the windscreen.
US-A-4,531,335 refers to another way of fastening a windscreen to a window frame of a motor vehicle, using elastic fitting clips which extend round the edge side of the windscreen and are configured to hook firmly in the window frame, with a portion of each clip extending round the inner edge of the window frame. In this case no adhesive seam is used but the windscreen is pressed by the clips against a gasket fastened to the window frame.
EP-A-117816 refers to another way of fastening a windscreen to a window frame in a motor vehicle, using a strip which extends round the periphery of the pane. The strip defines the distance between the pane and the window frame but there is no assurance of the windscreen not departing from the smallest possible distance defined by the strip.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a method for improving the fastening of a windowpane to a window frame in a motor vehicle. It refers more specifically to a method which ensures an adhesive seam of uniform thickness between the windowpane and the window frame.
This object is achieved with the method indicated in the introduction which comprises the steps of: fitting the windowpane to the window frame by applying an adhesive seam on at least the first surface and by pushing the windowpane in an insertion direction towards the window frame via a plurality of positioning elements which by snap action make it possible to achieve the defined position, with the adhesive seam adhering to at least the inside and the first surface, and hardening the adhesive seam, whereby the positioning elements are fastened in the adhesive seam and the windowpane is fixed in the defined position.
By such a method the windowpane can be applied quickly and easily in the desired defined position. The positioning elements ensure that the windowpane ends up at a predetermined exact or substantially exact distance from the outward- facing first surface of the window frame. It is thus possible to ensure that the adhesive seam has a uniform thickness along the whole edge region of the windowpane. There is thus assurance that the windowpane will sit firmly in the window frame and any leakage risk can be reduced.
The fact that the windowpane is held to the window frame by the positioning elements makes it possible for the body or cab of the motor vehicle to be handled immediately after the insertion of the windowpane, without having to wait for the adhesive seam to harden. Manufacturing efficiency is thus substantially improved. A further advantage is that the amount of adhesive required for the adhesive seam can be minimised when the thickness of the adhesive seam is kept substantially constant.
According to an embodiment of the invention, the positioning elements are distributed along the edge regions. The number of such positioning elements may with advantage be at least 4, 5, 6, 7, 8 or more. Where applicable, the positioning elements may be substantially evenly distributed round the edge regions. A large number of positioning elements distributed round the edge regions ensures that the thickness of the adhesive seam can be kept uniform along the whole periphery and that the windowpane is kept sufficiently steady relative to the window frame until the adhesive seam has hardened, irrespective of whether the motor vehicle is to be handled or not.
According to a further embodiment of the invention, each positioning element comprises a resilient slide surface and a resilient grip section which is arranged close to the slide surface. Thus the edge region intended to snap into the positioning elements can slide on the resilient slide surface, whereupon the latter bends away and the respective edge region snaps into the resilient grip section which can thereafter grip round and at least partly enclose the respective edge region.
According to a further embodiment of the invention, each positioning element comprises a fastening means arranged at a specified distance from the slide surface for determining the distance between the inside of the windowpane and the first surface of the window frame in the defined position. The fastening means is adapted to being fastened to the edge region of either the windowpane or the window frame. Thereafter the edge region of the other one out of the windowpane and the window frame can be pushed onto the positioning elements and be gripped by the grip section. With advantage, the positioning elements may be fastened to one of the edge regions by the fastening means gripping round said edge region. Such positioning elements can easily and quickly be fastened on the respective edge region before the insertion operation.
According to a further embodiment of the invention, the positioning elements are fastened to the edge region of the window frame, followed by the windowpane being inserted in such a way that the edge region of the windowpane snaps into the resilient grip section of the positioning elements. The positioning elements are thus fitted as a first step on the edge region of the window frame by the fastening means being, for example, quite simply pushed onto the window frame. According to another embodiment of the invention, the positioning elements are fastened to the edge region of the windowpane, followed by the windowpane being inserted in such a way that the edge region of the window frame snaps into the resilient grip section of the positioning elements. In this case the positioning elements are thus fastened as an initial step to the edge region of the windowpane, e.g. by the fastening means being pushed onto the windowpane.
According to a further embodiment of the invention, the adhesive seam is arranged by applying adhesive to the first surface and the edge surface. Thus the adhesive seam, after hardening, will adhere to the first surface and the opposite inside and to the edge surface and the opposite edge side. The windowpane will thus sit securely relative to the window frame.
According to a further embodiment of the invention, the adhesive seam is arranged by applying adhesive on at least the first surface before inserting the windowpane. The adhesive seam can easily be applied in this way before the windowpane is placed.
According to another embodiment of the invention, the adhesive seam is created by applying adhesive on at least the first surface after inserting the windowpane, whereby the adhesive seam is introduced between the windowpane and the window frame.
The object of the invention is also achieved with the motor vehicle indicated in the introduction which is characterised in that the positioning elements are configured to hold the windowpane and the window frame in the defined position by snap action.
Advantageous embodiments of the motor vehicle are defined in the dependent claims 12-17.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is explained below on the basis of a description of various embodiments and with reference to the attached drawings. Fig. 1 depicts a side view of a motor vehicle with a windowpane according to the invention.
Fig. 2 depicts a plan view of a windowpane arranged in a window frame.
Fig. 3 depicts a cross-sectional view through a windowpane and a window frame according to a first embodiment of the invention.
Fig. 4 depicts a cross-sectional view through a windowpane and a window frame according to a second embodiment of the invention.
DETAILED DESCRIPTION OF VARIOUS EMBODIMENTS OF THE INVENTION
Fig. 1 depicts a motor vehicle 1 of the heavy vehicle type and more specifically a truck. The invention is applicable to all types of vehicles but is particularly preferred for heavy vehicles of the truck and bus type composed of a framework and a body mounted thereon. The body comprises a plurality of window apertures with fixed windows, i.e. windows which cannot be opened. The invention is applicable to all such windows which are not openable but is described below with reference to a windowpane which constitutes a front pane or windscreen of the motor vehicle.
The motor vehicle 1 comprises a window aperture 2 with a forward windowpane 3, see Fig. 2. The windowpane 3 is made of a transparent material, e.g. a glasslike material, and has an inside 4, an outside 5 and an edge region 6 with an edge side 7 which extends round the whole periphery of the windowpane 3. The window aperture 2 is defined by a window frame 13 which has a first surface 14 which, when the windowpane 3 is a desired defined position relative to the window frame 13, faces towards the inside 4 of the windowpane, and a second surface 15 which faces away from the windowpane 3. The window frame 13 also has an edge region 16 with an edge surface 17, which extends outwards from the first surface 14 and which in the defined position faces towards the edge side 7 of the windowpane 3. The window frame 13 further has an end side 18 which connects the first surface 14 and the second surface 15.
As illustrated in Figs. 3 and 4 the windowpane 3 is fitted to the window frame 13 by an adhesive seam 20 which adheres to at least the inside 4 of the windowpane 3 and the first surface 14 of the window frame 13. In the embodiments depicted, the adhesive seam 20 also adheres to the edge side 7 of the windowpane 3 and the edge surface 17 of the window frame 13.
The windowpane 3 is also fitted to the window frame 13 via a plurality of positioning elements 30 which in the finally fitted state in the desired defined position are fastened in the adhesive seam 20. The positioning elements 30 are configured to hold the windowpane 3 and the window frame 13 in the defined position by snap action. The positioning elements 30 are made of a suitably elastic resilient material, preferably some suitable plastic material or metal.
The windowpane 3 in cases where it constitutes a windscreen is usually somewhat curved, e.g. as a so-called panorama window, although this is not illustrated in the drawings. The fact that the windowpane 3 is curved increases the difficulty of achieving an adhesive seam which is uniform. The windowpane may of course also be planar.
The positioning elements 30 are distributed along the edge regions 6 and 16. The number of such positioning elements 30 may be chosen according to the intended application, e.g. the size of the windowpane 3. With advantage, the number of positioning elements 30 may be at least 4, 5, 6, 7, 8 or more. The positioning elements 30 may be substantially evenly distributed round the edge regions 6 and 16.
Each positioning element 30 comprises a resilient slide surface 31 and a resilient grip section 32 which is arranged close to the slide surface 31. The grip section 32 is configured to extend round and grip one of the edge regions 6 and 16 when the latter has, by the aforesaid snap action, snapped into the grip section 32. The respective edge region 6 or 16 thus slides on the slide surface 31 and, owing to the elastic characteristics of the positioning element 30, pushes the latter away and snaps thereafter into the grip section 32, whereupon the slide surface 31 springs back so that the edge region 6 or 16 is gripped and locked in the grip section 32. In the defined position the edge region 6 or 16 may abut against an end surface 34 which is directly adjacent to and forms an angle with the slide surface 31. The slide surface 31 may be constituted by a pointed end section 35 of the positioning element 30.
Each positioning element 30 further comprises a fastening means 33 arranged at a specified distance from the slide surface 31 for determining the distance between the inside 4 of the windowpane 3 and the first surface 14 of the window frame 13 in the defined position. In the embodiments depicted, the fastening means 33 is configured to extend partly round and partly surround an edge region 6 or 16. The fastening means 33 thus grips one of the edge regions as a result of the elastic characteristics of the positioning element 30, whereby three inner surfaces of the fastening means 33 abut against the three surfaces which define the edge region 6 or 16. Owing to the grip section 32 and the fastening means 33, each positioning element 30 thus has an S-like shape when viewed from the side, as illustrated in Figs. 3 and 4.
Various examples of how the invention may be implemented are explained below in more detail, with particular reference to Figs. 3 and 4.
Example 1, see Fig. 3
A plurality of positioning elements 30 are fastened along the window frame 13 by the fastening means 33 being pushed onto and gripping the edge region 16, whereby the aforesaid three inner surfaces of the fastening means 33 abut against the first surface 14, the second surface 15 and the end side 18.
The windowpane 3 is applied by being pushed in an insertion direction P towards the window frame 13 in such a way that the windowpane 3 enters into engagement with the positioning elements 30 and, more specifically, so that the edge region 6 slides on the slide surface 31 of the positioning elements 30 and snaps into the grip section 32. When the edge region 6 has snapped into the grip section 32, the windowpane 3 has reached the desired defined position.
Thereafter an adhesive seam 20 is applied by adhesive being introduced between the edge side 7 and inside 4 of the windowpane 3 and the edge surface 17 and first surface 14 of the window frame 13. The adhesive seam 20 is thereafter caused to harden, thereby fastening and fixing the windowpane 3 relative to the window frame 13 and fastening the positioning elements 30 in the adhesive seam 20.
After the hardening, the end section 35 may, if so desired, be removed in a suitable manner, e.g. by being broken or cut off so that the positioning elements 30 do not protrude beyond the outside 5 of the windowpane 3. A suitably configured cover strip 40 may be placed outside and round the adhesive seam 20 and the edge region 6 of the windowpane 3. Part of such a cover strip 40, covering the adhesive seam 20, appears in Fig. 2. The positioning elements 30 may with advantage be configured so that they allow the fastening of such a cover strip 40, e.g. by snap action. The end sections 35 may also be configured to allow such fastening of the cover strip 40 by their being removed or bent in such a way that they allow the fastening of the cover strip 40.
Example 2, see Fig. 3
Example 2 differs from example 1 in that the adhesive is applied on the edge surface 17 and first surface 14 of the window frame 13 before the windowpane 3 is applied but after the positioning elements 30 have been applied on the window frame 13.
Example 3, see Fig. 3
Example 3 differs from example 1 in that the adhesive is also applied on the edge surface 17 and first surface 14 of the window frame 13 before the positioning elements 30 are applied on the window frame 13. Example 4, see Fig. 4
A plurality of positioning elements 30 are fastened along the windowpane 3 by the fastening means 33 being pushed onto and gripping the edge region 6, whereby the aforesaid three inner surfaces of the fastening means 33 abut against the inside 4, the outside 5 and the edge side 7.
The windowpane 3 is applied by being pushed in an insertion direction towards the window frame 13 in such a way that the window frame 13 enters into engagement with the positioning elements 30 and, more specifically, so that the edge region 16 slides on the slide surface 31 of the positioning elements 30 and snaps into the grip section 32. When the edge region 16 has snapped into the grip section 32, the windowpane 3 has reached the desired defined position.
Thereafter an adhesive seam 20 is applied by adhesive being introduced between the edge side 7 and inside 4 of the windowpane 3 and the edge surface 17 and first surface 14 of the window frame 13. The adhesive seam 20 is thereafter caused to harden, thereby fastening and fixing the windowpane 3 relative to the window frame 13 and fastening the positioning elements 30 in the adhesive seam 20. After the hardening, the end sections 36 may, if so desired, be removed in a suitable manner so that positioning elements 30 do not protrude beyond the second surface 15 of the window frame 13.
A suitably configured cover strip may be applied outside and round the adhesive seam 20 and the edge region 6 of the windowpane 3.
Example 5, see Fig. 4
Example 5 differs from example 4 in that the adhesive is applied on the edge surface 17 and first surface 14 of the window frame 13 before the windowpane 3 with the positioning elements 30 is applied. The invention is not limited to the embodiments depicted but may be varied and modified within the scope of the claims set out below.

Claims

Claims
1. A method for fastening a windowpane (3) in a window aperture (2) of a motor vehicle (1), in which the windowpane (3) is made of a transparent material and has an inside (4), an outside (5) and an edge region (6) with an edge side (7) which extends round the windowpane (3), in which the window aperture (2) is defined by a window frame (13) which has a first surface (14) which, at least when the windowpane (3) is in a desired defined position relative to the window frame (13), faces towards the inside (4) of the windowpane (3), and an edge region (16) with an edge surface (17) which in the defined position faces towards the edge side (7), and in which the method comprises the steps of: fitting the windowpane (3) to the window frame (13) by applying an adhesive seam (20) on at least the first surface and by pushing the windowpane in an insertion direction (P) towards the window frame (13) via a plurality of positioning elements (30) which by snap action make it possible to achieve the defined position, with the adhesive seam (20) adhering to at least the inside (4) and the first surface (14), and hardening the adhesive seam (20), whereby the positioning elements (30) are fastened in the adhesive seam (20) and the windowpane (3) is fixed in the defined position.
2. A method according to claim 1, in which the positioning elements (30) are distributed along the edge regions (6, 16).
3. A method according to either of claims 1 and 2, in which each positioning element (30) comprises a resilient slide surface (31) and a resilient grip section (32) which is arranged close to the slide surface (31).
4. A method according to claim 3, in which each positioning element comprises a fastening means (33) arranged at a specified distance from the slide surface (31) for determining the distance between the inside (4) of the windowpane (3) and the first surface (14) of the window frame (13) in the defined position.
5. A method according to claim 4, in which the positioning elements (30) are fastened to one of the edge regions (6, 16) by the fastening means (33) gripping round said edge region (6, 16).
6. A method according to either of claims 4 and 5, in which the positioning elements (30) are fastened to the edge region (16) of the window frame (13) and in which the windowpane (3) is thereafter inserted in such a way that the edge region (6) of the windowpane (3) snaps into the resilient grip section (31) of the positioning elements (30).
7. A method according to either of claims 4 or 5, in which the positioning elements (30) are fastened to the edge region (6) of the windowpane (3) and in which the windowpane (3) is thereafter inserted in such a way that the edge region (16) of the window frame (13) snaps into the resilient grip section (31) of the positioning elements (30).
8. A method according to any one of the foregoing claims, in which the adhesive seam (20) is arranged by applying an adhesive on the first surface (14) and the edge surface (17).
9. A method according to any one of the foregoing claims, in which the adhesive seam (20) is arranged by applying an adhesive on at least the first surface (14) before the insertion of the windowpane (3).
10. A method according to any one of the foregoing claims, in which the adhesive seam (20) is arranged by applying an adhesive on at least the first surface (14) after the insertion of the windowpane (3).
11. A motor vehicle comprising a window aperture (2) with a windowpane (3) which is made of a transparent material and has an inside (4), an outside (5) and an edge region (6) with an edge side (7) which extends round the windowpane (3), in which the window aperture (2) is defined by a window frame (13) which has a first surface (14) which, at least when the windowpane (3) is in a desired defined position relative to the window frame (13), faces towards the inside (4) of the windowpane (3), and an edge region (16) with an edge surface (17) which in the defined position faces towards the edge side (7), in which the windowpane (3) is fitted to the window frame (13) by means of an adhesive seam (20) which adheres to the first surface (14) and the inside (4), and in which the windowpane (3) is also fitted to the window frame (13) via a plurality of positioning elements (30) which are fastened in the adhesive seam (20), characterised in that the positioning elements (30) are configured to hold the windowpane (3) and the window frame (13) in the defined position by snap action.
12. A motor vehicle according to claim 10, in which the positioning elements (30) are distributed along the edge regions (6, 16).
13. A motor vehicle either of claims 11 or 12, in which each positioning element (30) comprises a resilient slide surface (31) and a resilient grip section (32) which is arranged close to the slide surface (31).
14. A motor vehicle according to claim 13, in which each positioning element comprises a fastening means (33) arranged at a specified distance from the slide surface (31) for determining the distance between the inside (4) of the windowpane (3) and the first surface (14) of the window frame (13) in the defined position.
15. A motor vehicle according to claim 14, in which the positioning elements (30) are configured to be fastened to one of the edge regions (6, 16) by the fastening means (33) gripping round said edge region (6, 16).
16. A motor vehicle according to either of claims 14 and 15, in which the positioning elements (30) are configured to be fastened to the edge region (16) of the window frame (13), whereby the edge region (6) of the windowpane (3) is surrounded by the resilient grip section (32) of the positioning elements (30) in the defined position.
17. A motor vehicle according to either of claims 14 and 15, in which the positioning elements (30) are configured to be fastened to the edge region (6) of the windowpane (3) in such a way that the edge region (16) of the window frame (13) is surrounded by the resilient grip section (32) of the positioning elements (30) in the defined position.
PCT/SE2008/050663 2007-06-15 2008-06-05 Method for fastening a windowpane WO2008153484A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112008001607T DE112008001607T5 (en) 2007-06-15 2008-06-05 Method for fixing a window pane

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0701467A SE531427C2 (en) 2007-06-15 2007-06-15 Procedure for attaching a window pane
SE0701467-3 2007-06-15

Publications (1)

Publication Number Publication Date
WO2008153484A1 true WO2008153484A1 (en) 2008-12-18

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SE (1) SE531427C2 (en)
WO (1) WO2008153484A1 (en)

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SE0701467L (en) 2008-12-16
SE531427C2 (en) 2009-03-31

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