JP2624383B2 - Double glazing for vehicle windows and its manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double glazing for a vehicle window, in particular, for example, a so-called various glass plate or a synthetic resin plate such as polycarbonate (PC). A vehicle in which a thinner glass plate is used to form a multi-layered glass, and in addition, the multi-layered glass is fixed to a peripheral edge portion of the multi-layered glass so as to surround, for example, a thermoplastic resin molding (also referred to as a gasket), and is integrally molded. Regarding double glazing for windows and its manufacturing method, in particular, it shall have sufficient long-term durability and weather resistance etc. by increasing the sealing performance or strength by replacing laminated glass as well as conventional single glazing. It can be used for windows, and in addition to the function as a double-glazed glass, it can have various functions that are difficult to provide with laminated glass as well as single-pane glass, Obtained and excellent sustained sufficiently protect multiple functions these applied, thus comfort in the car outside,
A useful multi-layer for vehicle windows that can achieve safety or weight reduction equal to or higher than that of laminated glass, and can be applied not only to window materials for vehicles such as automobiles, but also to ships and buildings or related products. A glass and a method for producing the same.

[0002]

2. Description of the Related Art Several types of double glazing for vehicle windows have been proposed. For example, Jikken 51-26412
Japanese Patent Application Laid-Open No. 61-90831 discloses a vehicle glass comprising a reduced pressure space provided between a glass plate and a transparent plastic plate. A window glass for an automobile is disclosed, which is provided with a cover made of a band-shaped soft synthetic resin that covers an adhesive portion filled outside a spacer.

[0003] For example, a description for a vehicle door window in which the edge of an insulating window glass is formed in a stepped shape and is supported by a glass plate on a large side is described in German Patent Publication 35175.
81, German Patent Publication No. 3729036 or JP-A-63-263129, and German Patent Publication No. 3517581 discloses that one of two single-layer glass sheets is provided at least at the side end of the other glass sheet. A side window of a vehicle, in particular a motor vehicle, is disclosed in which the projecting side edge of the larger glass sheet is guided in the surrounding frame, and furthermore German Offenlegungsschrift 37 29 36 A height-adjustable window in an automotive door consisting of two thin glass plates surrounding an air space, the glass plate being, for example, a prestressed or taafund safety glass having a thickness of 3 mm, and a plastic seal having a thickness of 3 mm, It is a butyl rubber mixed with 20% by weight of a desiccant, the adhesive compound is thiocol, and the ball is a spacing member. Japanese Patent Application Laid-Open No. 63-263129 discloses an insulating glass plate for an automobile which is arranged in such a manner as to increase the open area of the plastic seal in the air space. The adhesive that seals the intermediate space formed between the two is shifted to the inner surface from the peripheral edge surface of both single-layer glass sheets to form a groove, and is visible at least when the window is opened. In a groove formed on the peripheral edge surface of the portion to be formed, a flash connection sealing surface having no step is formed with the edge surface of at least one single-layer glass plate, and is fitted to the contour shape of the glass plate, and an adhesive is formed. A height-adjustable side window glass for motor vehicles, which is an insulated glazing on which an edge profile fixed by means of a vehicle is arranged, is disclosed.

Further, for example, Japanese Utility Model Laid-Open No. 2-99933 discloses that an anti-reflection film is formed on the surface of the outer glass plate on the air layer side, or that the inner glass plate is provided on the air layer side or on the indoor side. On the surface, PET, PVB,
It is known that a double glass for vehicles to which a resin film made of at least one of polyurethane, EVA and polyvinyl chloride is adhered is disclosed.

[0005]

For example, Japanese Utility Model Publication No. 51-26412 and Japanese Utility Model Application Laid-Open No. 61-9083 described above.
No. 1 discloses that it is quite difficult to maintain the sealing property in a reduced-pressure space or an air layer as a window material for automobiles for a long time under various severe conditions. In the former, depending on the decompression, it may also cause distortion when seeing through, and in the latter, the distance from the glass edge to the spacer may be long and narrow the field of view in particular, and both may be used for automobiles. When it is attached to the window, it is not easy and it is difficult to have sufficient attachment strength.

Further, for example, the above-mentioned German Patent Publication 351
No. 7581, particularly in a vehicle door window, the visible sealing material is not always uniformly and beautifully applied and finished easily due to opening and closing or height adjustment, so that the appearance is easily damaged, and dust and dust accumulate on the surface of the sealing material. In addition, it is difficult to clean this surface, and the device described in German Patent Publication No. 3729036 is not necessarily sufficient in terms of sealing performance, although there is a device for maintaining a dry state in the air layer. Although the use of a sphere as a spacing member seems to be good, it is not good from the viewpoint of workability, etc., and a local force acts on both glass plates, which is not always good.
In the structure described in JP-A-263129, it is not always good that a gap is determined by an edge member fixed by an adhesive material, and the sealing property is not sufficient. Is likely to be manifested in the use environment or long-term use.

Further, Japanese Unexamined Utility Model Publication No. 2-99933 discloses that the double-layer glass is not easy to seal, to improve the transparency or to enhance the durability, and to easily attach and assemble the double-layer glass. is there. Furthermore, those described in the above-mentioned publications are not always easily adopted easily for a double-layer glass formed by combining an outer glass plate and an inner glass plate having a thickness smaller than the outer glass plate.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and includes various reinforcing members which are in contact with the peripheral edge surface of the outer glass plate and are entangled. After arranging a plurality of molding portions on the entire peripheral edge surface of the laminated glass plate, the molding portion was integrally covered and molded with a synthetic resin, especially a thermoplastic resin material by a so-called encapsulation method or the like. By doing so, stubborn integral bonding that is several steps better than before can be achieved, has sufficient bonding strength, and is excellent in durability such as weather resistance and light resistance, and can be more multifunctional and safer An object of the present invention is to provide a double glazing for a vehicle window, which is capable of improving the easiness and achieving a high livability and capable of responding to a reduction in weight, and an effective and efficient method for producing the same.

That is, the present invention provides a double glazing for a vehicle window in which a spacing member is disposed at a peripheral edge, an outer glass plate and an inner glass plate are held and bonded with a predetermined space interposed therebetween, and the peripheral edge is sealed. A plurality of reinforcing members abutting at least on the peripheral edge of the outer glass plate and sandwiching the inner and outer glass plates mainly on the outer glass plate, a plurality of reinforcing members on the entire peripheral edge of the multilayer glass. A double glazing for a vehicle window, which is provided and covered with a synthetic resin molding integrally molded so as to surround the entire peripheral edge of the double glazing. In addition, the double glazing for a vehicle window as described above, wherein the spacing member and the reinforcing member are mutually fastened and supported by a connecting member. Further, a spacing member is arranged on the peripheral edge, the outer glass plate and the inner glass plate are held and bonded with a predetermined space interposed therebetween, and at least the outer glass is manufactured in a method of manufacturing a laminated glass for a vehicle window in which the peripheral edge is sealed. A plurality of reinforcing members that are in contact with the peripheral edge portion of the plate and that sandwich the inner and outer glass plates mainly by the outer glass plate are provided on the entire peripheral edge surface portion of the multilayer glass,
After setting the entire peripheral edge of the multilayer glass in the injection molding die and closing the mold, a synthetic resin molding is formed so as to surround the portion of the entire peripheral edge of the multilayer glass where the synthetic resin molding is to be molded. Accordingly, the present invention provides a method for producing a double glazing for a vehicle window, which is integrally molded.

Here, the fact that the reinforcing member is brought into contact with at least the peripheral edge surface of the outer glass plate and a plurality of the reinforcing members are arranged on the entire peripheral edge surface of the multilayer glass plate means that the outer glass plate is mainly used. Preferably, a plurality of fastening members are integrally provided with the connecting member of the spacing member, and at least two portions are provided, and the inner glass plate, particularly, the thickness thereof is equal to or less than the outer glass plate, or equal to or slightly smaller than the outer glass plate. By supporting or holding at least the inner glass plate, which is an area, it is useful to maintain the sealing property of the adhesive or the sealant on the inner surface of the inner and outer glass plates, and particularly to, for example, about -2.
Various types of multi-layer glass for vehicle windows are provided that can withstand severe temperature changes such as 0 ° C. to + 50 ° C. or distortion due to wind pressure caused by high-speed running and have sufficient long-term durability. In order to prevent the function from deteriorating, further narrow the space between the peripheral member and the peripheral edge portion even slightly, so as not to narrow the field of view, for a vehicle window as transparent as possible. This is because a suitable double-glazed glass is obtained.

Accordingly, the shape or material of the reinforcing member is not particularly limited as long as the reinforcing function described above can be ensured. For example, the shape of the reinforcing member is mainly composed of the outer glass plate, and in some cases, together with the spacing member. , Such as supporting the inner glass plate, and in some cases, as long as it can be used as a reinforcing core or the like when attaching and fixing the vehicle window double-glazing to the window frame of the vehicle body. As for the thickness, it is sufficient that the thickness is such that a local force does not act and does not hinder the flow of the resin at the time of molding the molding, and does not affect the molding molded integrally and has strength. Further, for example, the material may be a molded article made of a synthetic resin such as vinyl chloride or urethane or a composite thereof, or a metal such as aluminum. , Without express damage or cracking, such as scratches on the glass plate, but as long as it can hold the reinforcing function without it causing deformation during molding integral molding.

Further, the spacing member may be made of polyisobutylene and / or butyl rubber, mixed with charcoal, silica gel or a desiccant which is a mixture of silica gel and zeolite, or made of vinyl chloride or aluminum. The size of the cross section is about 0.5 to 5 mm at a height substantially equal to the space, preferably about 1 to 5 mm.
-3 mm and a width of about 3-6 mm, and the spacing member is preferably provided on the entire periphery of the peripheral edge of the double-glazed glass, and a connecting member integrally projecting from the spacing member. May be at least flexible and may have an uneven or spiral surface, etc., so that the reinforcing member and the connecting member are fitted and fastened at the tip of the connecting member so as to provide stability and more reliable reinforcement. In addition, the adhesion between the inner surface of the inner and outer glass plates and the spacing member is fixed with polyisobutylene or butyl rubber when the spacing member made of vinyl chloride or aluminum is used.

[0013] Further, as the sealing material (also referred to as a sealing material), a silicon-based resin, thiocol, or the like is used, and the outer side opposite to the space of the spacing member is sufficiently securely sealed. Its thickness is about 2-4mm
It is about. It is preferable that the synthetic resin molding slightly penetrates, for example, about 2 to 4 mm between the peripheral edges of the inner and outer glass plates, and in some cases, this layer may be omitted without applying the sealing material. it can. In any case, the width between the space side edge of the spacing member and the peripheral edge of the outer glass plate is about 10 mm, and in some cases, about 15 mm. It goes without saying that the dimensions of the above-described spacing member, sealing material, and the like slightly vary depending on the size of the glass plate, that is, the double-layer glass.

Further, the inner and outer glass plates include:
So-called inorganic glass plate, polycarbonate plate (PC
), Organic synthetic resin plates such as polymethyl methacrylate plate (PMMA plate) or acrylic plate, etc., which are colorless or variously colored, have infrared or ultraviolet absorption function, and various types of film coating etc. Surface treatment and multi-functionality, for example, hard coat, heat ray reflective film,
Non-reflective film, radio wave transmitting film, bilayer film or their composite film, etc., furthermore, not only raw plate but also one with increased strength by heat treatment or chemical treatment, or variously reinforced, flat plate or bent The so-called black frame which is a ceramic baked layer portion, a laminated or composite glass plate, various processed ones such as those with fine wires, etc. are used, and the thickness of the inner and outer glass plates is used for vehicle windows. In order to further enhance safety and reduce weight, the inner and outer glass sheets are preferably equal to or less than about 4 mm in thickness, or the inner glass sheet is preferably thinner than the outer glass sheet. About 5 to 3.5 mm thick, preferably about 1.8 to 3.0 mm, and about 0.5 to 2.0 mm thick for the inner glass plate, preferably about 0.8 to 3.0 mm.
1.8 mm is more preferred.

Further, examples of the synthetic resin molding formed by integral molding include resin raw materials such as thermoplastic resin molding materials, polyurethane, vinyl chloride, urethane vinyl chloride, and thermoplastic elastomers.
Among them, it is preferable to use a vinyl chloride resin or a polyurethane resin which is inexpensive and has good performance such as durability.

Further, as an integral molding method of the synthetic resin molding on a peripheral edge portion of a so-called double-layer glass in which the inner and outer glass plates are multilayered, RIM method, LIM method and the like can be mentioned. Among these, the encapsulation method is most preferable. For example, in the case of a polyurethane resin, the injection molding condition is an injection melting temperature of about 140 to 200.
° injection pressure about 130~150kg / cm ² approximately at about C (discharge pressure of about 3 kg / cm ² about longitudinal) mold temperature of about 60
７０70 ° C., and for example, in the case of a vinyl chloride resin, the injection molding condition is an injection melting temperature of 170-200 ° C.
The injection pressure is about 300 kg / cm ² or more at about ℃, and in this case, if the peripheral edge is preliminarily treated with a primer before inserting the molding part into the molding die, the flow of the molten resin for injection is promoted. In addition, it is preferable that the peripheral edge be heated to about 80 to 100 ° C. In addition, when the glass plate is made of various kinds of organic and inorganic materials, it is necessary to give consideration to cracks and the like, and it goes without saying that consideration must be given to thermal expansion and contraction.

In particular, when the so-called encapsulation method is applied, for example, an air vent pipe communicating from the space portion of the double glazing to the outside air is provided, and after the encapsulation is completed, humidity in the space is adjusted. For example, a rubber balloon-like material containing a desiccant may be attached to the pipe so that the pressure in the space is adjusted and the humidity is adjusted, or the seal may be simply disposed. Further, it is needless to say that a desiccant-containing spacer may be integrally provided on the space side of the spacing member in close contact with the surroundings for humidity control in the space.

[0018]

An embodiment of the present invention will be described below with reference to the drawings. However, the present invention is not limited to such an embodiment. Figure 1 is a side sectional view partially enlarged showing one embodiment of the reinforcing member and the molding mold part of the configuration in the peripheral edge portion of the insulating glass for a vehicle window of the present invention, double glazing 1 for a vehicle window Has a size of about 470 mm in length and about 120 mm in width provided with a black frame 10 on the inner surface in advance as shown in FIG. 4, for example.
A mixture of charcoal, silica gel and zeolite is added to polyisobutylene through a bonding portion 9 made of polyisobutylene at a predetermined position centered at about 8 mm at the peripheral edge of the outer glass plate 2 having a green tone of about 3 mm thickness. A gap member 4 having a height of about 3 mm and a width of about 5 mm, which is mixed with a desiccant consisting of: a thin inner glass plate having the same shape as the outer glass plate 2 and a thickness of about 1.5 mm sandwiching the spacer 4 The inner and outer glass plates are closely adhered to each other at the bonding portion 9 in the same manner as described above so that the peripheral edge faces around the entire periphery, and the inner and outer glass plates 2 and 3 and the spacing member 4 are in a dry state. A space 6 having a thickness of about 3 mm is formed to form a multi-layered structure, and a silicon-based resin is sealed as a sealing material 5 to a thickness of about 3 mm on the outer side of the spacing member 4 to obtain a multi-layered glass. 8 places at the peripheral edge, ie each After setting the reinforcing member 7, which is a urethane resin molded product, at two locations so as to abut and hold the edge portions and the end surfaces of the inner and outer glass plates in cross section, a primer is applied to a portion where the molding 8 is to be applied, As shown in FIG. 5, it is set in the injection mold 12 so as to surround the peripheral edge of the double-glazed glass obtained above, that is, the peripheral edge of the inner and outer glass plates, the reinforcing member, the sealing material and the like. A double glazing for a vehicle window in which a polyurethane resin molding 8 is molded by integrally molding by a so-called encapsulation method in which a raw material resin is injected into the cavity space 15 by clamping the upper and lower dies 13 and 14.
1 is shown.

In the obtained double glazing for a vehicle window, the molding has a thickness of about 3 mm from the peripheral edge of the inner and outer glass plates to the sealing material.
mm, and also become entangled with the reinforcing member.In addition, it supports the inner glass plate and enhances the integration of the inner and outer glass plates, making it extremely excellent in sealing performance and completely shutting off moisture and moisture. It has sufficient weather resistance and durability even in the long term, not only can protect the peripheral edge of the double glazing for vehicle windows, but also improves the impact strength to the glass and enhances the cushioning property of the inner glass, thereby increasing the occupant's occupants. It can reduce tearing to the wind, is resistant to wind pressure during traveling, hardly generates distortion, and has improved soundproofing and heat insulation, and is also excellent in various dimensions, livability and safety inside and outside the car It is also excellent and can be lightweight,
This facilitates storage and transportation, as well as easy attachment to the vehicle body window in a later process.

FIG. 2 shows another embodiment of the double glazing for a vehicle window according to the present invention at the peripheral edge, in which a reinforcing member is fastened and supported by a connecting member protruding from a spacing member. FIG. 2 is a partially enlarged side sectional view showing a bronze-colored glass plate and an inner glass plate as an outer glass plate 2 in the same manner as the double-glazed glass for a vehicle window described in FIG. A glass plate having a thickness of about 1.2 mm, in which a PET film having a thickness of about 100 μm is attached with a PVB film having a thickness of about 0.38 mm,
This is a double glazing 1 for a vehicle window obtained by replacing the reinforcing member 7 with a connecting member 11 protruding therefrom by fastening. The obtained double glazing for vehicle windows, despite the replacement of the inner glass plate, is configured so that the reinforcing member is fastened and supported by the connecting member protruding from the spacing member, thereby further reinforcing and integrating the glass. 1 and can be connected without reducing the sealing performance of the inner and outer glass plates, and furthermore, the sealing member and the polyurethane resin for molding are also entangled with the connecting member, so that the connecting member becomes a core material and the like. similar,
Some of them had a function and effect with higher performance.

FIG. 3 is a partially enlarged side sectional view showing one embodiment of a portion where the reinforcing member is not set at the peripheral edge of the double glazing for a vehicle window of the present invention.
As described above, it is obvious that the use of the reinforcing member and the connecting member under various conditions as appropriate makes it better. However, even in a portion where the reinforcing member and the like are not set, the portion also has sufficient performance. Is further improved in sealing performance, strength, and the like under the influence of the reinforcing member and the like, and is further improved as a whole.

FIG. 4 is a plan view showing an embodiment of the double glazing for a vehicle window of the present invention, and illustrates a rear quarter glass for a vehicle window. In addition, it can be used for sunroof glass, back window glass, and side window, and can also be used for door window glass or windshield. The double glazing for a vehicle window of the present invention and the method for producing the same can be applied to a wide range of fields such as vehicles, especially automobiles, as well as ships, buildings, and related fields, and are useful.

FIG. 5 is a partially enlarged view showing a state in which the laminated glass is placed in an injection molding die and clamped immediately before injection of the liquid synthetic resin in the production method of the present invention. FIG. 2 is a cross-sectional view in which an injection mold 12 is an upper mold 1.
3 and a lower mold 14, the same multi-layered glass plate as in FIG. 1 is formed so as to form a cavity space at a portion where a synthetic resin molding is to be molded, and upper and lower molds 13, 14 are formed.
Is set in the injection mold 12 so that at least the portion provided with the sealing and cushioning material 16 covers the spacing member 4, and the upper and lower dies 13 and 14 are clamped to form the cavity space 15.
Is formed. At this time, it is important that the reinforcing member 7 does not affect the sealing material 5 or the like.

[0024]

As described above, the double glazing for a vehicle window of the present invention and the method for producing the same can be used for a unique combination of inner and outer glass sheets, particularly a spacing member having a connecting member and a sealing member. In the combination with materials, etc., the inner peripheral surface of the inner and outer glass plates is left in a U shape so that the synthetic resin for molding enters, and the inner and outer glass plates are reinforcing members mainly composed of the outer glass plate. With the reinforcing member fastened to the spacing member by the connecting member, the inner and outer glass plates are brought into contact with the peripheral edge surface of the inner and outer glass plates, for example, to be integrally formed, and made of synthetic resin by a so-called encapsulation method. By forming the molding integrally,
In addition to the structure of the usual double-glazed glass, the molding enters from the peripheral edge surface of the inner and outer glass plates to the sealing material and becomes entangled with the reinforcing member and the like, and additionally supports the inner crow plate and supports the inner and outer glass plates. It is extremely excellent in sealing properties, such as enhancing the integration of the plate, completely shuts out moisture and moisture, and has sufficient weather resistance and durability for a long period of time. In addition to being able to protect the peripheral edge, the impact strength against the glass plate has been improved, and the cushioning property of the inner glass has been enhanced to reduce rupture to occupants. In addition, the sound insulation and heat insulation are improved, and various dimensional properties are improved. It is also excellent in comfort and safety inside and outside the vehicle, and can achieve weight reduction. Definitive attachment to the vehicle body window portion is facilitated, the vehicle, in particular labor and safe a multilayer glass useful vehicle windows be sufficiently employed in automotive, can be obtained stably and efficiently.

[Brief description of the drawings]

FIG. 1 is a partially enlarged side sectional view showing one embodiment of a configuration of a reinforcing member and a molding portion at a peripheral edge portion of a double glazing for a vehicle window of the present invention.

FIG. 2 is a partially enlarged side view showing another example in which a reinforcing member is fastened and supported by a connecting member protruding from a spacing member in another embodiment at a peripheral edge portion of a double glazing for a vehicle window of the present invention. It is sectional drawing.

FIG. 3 is a partially enlarged side sectional view showing one embodiment of a portion where a reinforcing member is not set at a peripheral edge portion of the double glazing for a vehicle window of the present invention.

FIG. 4 is a plan view showing an embodiment of the double glazing for a vehicle window of the present invention.

FIG. 5 is a partially enlarged side cross-sectional view showing a state in which a multi-layered glass is placed in an injection molding die and clamped in the production method of the present invention.

DESCRIPTION OF SYMBOLS 1 Double glass for vehicle window 2 Outer glass plate 3 Inner glass plate 4 Spacer member 5 Seal material 6 Space 7 Reinforcement member 8 Mold 9 Adhesive part 10 Black frame 11 Connecting member 12 Injection mold 13 Upper mold 14 Lower mold 15 Cavity space 16 Seal and cushioning material

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location B60J 1/00 B60J 1/00 Z

Claims (3)

(57) [Claims] 1. A spacing member is arranged on a peripheral edge portion, and an outer glass plate and an inner glass plate are held and bonded with a predetermined space interposed therebetween.
In the double glazing for a vehicle window having a sealed peripheral edge portion, a reinforcing member that is brought into contact with at least the peripheral edge surface portion of the outer glass plate and sandwiches the inner and outer glass plates mainly with the outer glass plate, A vehicle window, which is provided with a plurality of pieces disposed on the entire peripheral edge surface of the double-glazed glass and covered with a synthetic resin molding integrally molded so as to surround the entire peripheral edge of the double-glazed glass. For double glazing. 2. The double glazing for a vehicle window according to claim 1, wherein the spacing member and the reinforcing member are mutually fastened and supported by a connecting member. 3. A spacing member is arranged at a peripheral edge portion, and an outer glass plate and an inner glass plate are held and bonded with a predetermined space interposed therebetween.
In a method for manufacturing a double glazing for a vehicle window having a sealed peripheral edge portion, a reinforcing member which is in contact with at least a peripheral edge surface portion of an outer glass plate and sandwiches the inner and outer glass plates mainly by the outer glass plate. Are provided on the entire peripheral edge surface of the double glazing, the entire peripheral rim of the double glazing is set in the injection mold, and after clamping, the entire peripheral rim of the double glazing is set. A method of manufacturing a double glazing for a vehicle window, comprising integrally molding with a synthetic resin molding so as to surround a portion of the synthetic resin molding to be molded.