JPH04175249A - Laminated glass for vehicle - Google Patents

Abstract

PURPOSE:To secure see-through clarity of a glass and improve the breaking resistance and penetration resistance by protruding thin wires from the circumference edge part of a laminated glass for vehicle and supporting and fixing the protruded wires with a supporting part and/or a clamping part of a fixing member. CONSTITUTION:A laminated glass 1 for vehicle is produced by laminating and integrating at least one plate glass 2 having a thickness of <=4mm, a transparent adhesive layer 4, a transparent synthetic resin film layer 11 and a wired plate glass 3 containing thin wires 5, 5' embedded at about the center of the cross-section. The wires 5, 5' having a diameter of 100-10mum and a tensile strength of 600-100kg/mm<2> are protruded from the circumferential edge of the laminated glass. The supporting part made of the wire 5, 5' itself is supported and fixed and/or a clamping part 9 of the wire is fixed to a fixing member 8.

Description

[Detailed Description of the Invention] S Industrial Application Field] The present invention relates to a thin glass plate with a thickness of 4 mm or less, a transparent synthetic resin film layer, or a transparent adhesive layer, and a device in which fine wires are provided in these plates or layers. By selecting at least various combinations and laminating them from the above, at least fine wires protruding from the peripheral edge end face of the laminated glass are supported and fixed, so that the laminated glass plate can be laminated in particular areas. The above-mentioned unique fine wires are supported and fixed by providing a uniquely sized network formed by the wires, and a synthetic resin molding is provided to wrap around the supporting and fixing parts. To provide laminated glass for vehicles that can make support and reinforcement using wires more effective, is lighter in weight, and achieves higher safety, especially laminated glass for vehicles that is more useful as an automobile windshield, etc. It is something to do.

[Conventional technology]

Recently, the need for energy conservation has become particularly desirable due to global environmental issues and global resource issues, and measures are being taken to improve fuel efficiency in automobiles, one of which is the improvement of automobile windows. There is weight reduction in glass.

On the other hand, there is a growing need for improved safety and livability in order to lead a comfortable life, and various measures are being taken in automobiles and the like.

For example, Japanese Patent Publication No. 45-2317 discloses that in a laminated vehicle wall body in which two glass plates are spaced apart in parallel by a transparent plastic layer bonded to the inner glass plate, the inner glass plate is thinner than the outer glass plate and resists compressive internal force. The inner glass plate is reinforced by a surface zone having (a) greater break resistance to the key body than the outer glass plate, (b) greater flexibility than the outer glass plate, and (c) a greater resistance to breakage than the outer glass plate. Disclosed is a laminated vehicle wall having the ability to break into small particles instead of breaking into relatively large pieces like the outer glass plate when the inner glass plate has a thickness of about 1.5 to 2.25 nm+m. The outer glass plate has a thickness of approximately 1.75-3.0 mm, the inner glass plate is reinforced to withstand the impact of a 225 gr steel ball dropped from a height of 2 m, and the outer 22 glass plates
It is reinforced so that it cannot be destroyed by the impact of a 2m drop from a 5gr steel ball, and that the area of the fragments within a 15.2cm radius of the impact zone does not exceed 2.15aJ when it breaks. If the outer glass plate is broken, at least 90% of the impact zone area
It is described that % becomes a fragment having an area larger than 6.45CII+. Also, special public service 58-1961
Publication No. 6 states that the outer glass should be an annealed glass plate with a thickness of 3111 In or less, and the inner glass should have a thickness of 2500 Kg/cat.
Thickness I of the above average bending strength, Omm to 1.9
A laminated glass for a vehicle is disclosed, which is a strengthened glass plate of mm in size and has a product σt2 of the bending strength σ and the square of the thickness t adjusted to 60 to 97 kg. Furthermore, JP-A-49-5
No. 5776 discloses a hard transparent plate-like body and a thickness of 0.025 mm.
mm to 0.25 mm, a non-destructive transparent plastic film having a tensile strength of 352 Kg/cm2 or more and a final elongation of 150% or less, and a thickness of 0.12 mm to 1.52 mm.
mrrl tensile strength of 457 Kg/ant or less, which is less than the tensile strength of the non-destructive transparent plastic plate, and 150
An impact-resistant transparent laminated structure bonded by a transparent plastic interlayer having a final elongation of % or more is disclosed, and it is described that a scratch-resistant coating, which is an organic silicon film, may be coated on the top surface of PET li. There is. Furthermore, Japanese Utility Model Application No. 50-60375 discloses that a metal net is fixed to the surface of a base material made of a transparent glass plate or plastic plate, or between a plurality of these plates with a polyvinyl acetate adhesive. A netted laminate is disclosed. Furthermore, in Japanese Utility Model Publication No. 2-26910, a plurality of large diameter metal wires with a wire diameter of 0.3 to 1 mm are provided in at least one direction so that the wire pitch is 20 to 200 mm+, and the wire diameter is A net formed by arranging small diameter metal wires of 0.01 to 0.3 nv with a wire pitch of 0.2 to 5+ nm is also provided, and the wire diameter of the large diameter metal wire is further reduced. A plate glass with fine lines and lines having a diameter twice or more that of the metal wire is disclosed.

[Problem that the invention seeks to solve]

The ones described in Japanese Patent Publication No. 45-2317 and Japanese Patent Publication No. 58-19616 mentioned above are laminated glass made of thin glass, especially reinforced thin sheets that are thinner than the outside glass sheet as the inside glass sheet. By using a glass plate as a windshield for automobiles, we aim to reduce the impact received by occupants in the event of a collision, reduce lacerations sustained to the face, etc., and improve the resistance to head penetration of laminated glass and the resistance to destruction by flying pebbles, etc. Although we are trying to obtain a laminated glass that gives flexibility and elasticity, maintains high fracture resistance, and also has the ability to break into small, non-sharp pieces when broken, it is not always necessary to meet the recent requirements for penetration resistance, etc. It is difficult to say that it fully satisfies the needs of people. Furthermore, although the product described in Japanese Patent Application Laid-Open No. 49-55776 satisfies the various demands mentioned above, it is not necessarily sufficient to meet the recent needs for achieving more completeness and perfection. is difficult to say. Furthermore, the product described in Japanese Utility Model Application Publication No. 50-60375 has poor transparency, and even if transparency were improved, it would not necessarily be able to fully satisfy the various strengths etc. mentioned above. Therefore, it is difficult to say that it can be adopted as a window glass for automobiles. Furthermore, the material described in Utility Model Publication No. 2-26910 has poor transparency, and even if an attempt was made to improve the transparency, the large diameter metal wires would be too conspicuous and the small diameter metal wires would be too dense for people to see. However, it is difficult to say that it can necessarily be used as a window glass for automobiles.

[Means for Solving Problem 1] The present invention has been made in view of the above-mentioned problems. In addition, in laminated glass in which transparent adhesive layers and fine wires are provided in various combinations and laminated and integrated, a layer smaller than the end face of the peripheral edge of the laminated glass (both fine wires are protruded to support and fix the part) As a result, it is more effective, provides more optimal flexibility and elasticity while reducing weight, maintains high fracture resistance, further improves penetration resistance, etc., and has sufficient transparency. It is possible to secure
The object of the present invention is to provide a laminated glass for vehicles that can further improve safety and comfort both inside and outside the vehicle window glass, as well as for passengers, and can achieve greater energy savings.

That is, the present invention includes at least one glass plate having a thickness of 4 ram or less, a transparent adhesive layer, a transparent synthetic resin film layer, and the glass containing fine wires in which fine wires are embedded approximately in the center of the cross section. In a laminated glass for a vehicle formed by laminating and integrating the synthetic resin film layer containing a plate or fine wire and further fine wires in various appropriate arrangements, from the end surface of the peripheral edge of the laminated glass for a vehicle. A laminated glass for a vehicle, characterized in that at least one pair of protruding support portions formed of at least the fine wires and/or at least one fixing member to which the fine wires are fastened and supported are provided. and a part or all of the supporting part and/or the fixing member is embedded in the peripheral edge of the laminated glass for vehicles, and integrally formed by direct injection molding to surround the peripheral edge with synthetic resin. The laminated glass for a vehicle is characterized in that the laminated glass has a molding formed in the same manner. Furthermore, the fine wire is 200I from the edge of the laminated glass for vehicles.
the area within III1 or/and the area within 100 mm symmetrically to the center line of the vehicle glass, or the adhesive layer portion of at least one area of the entire area of the laminated glass, and/or the wire-containing glass plate, the wire The laminated glass for a vehicle as described above, wherein at least one fine wire and/or a plurality of meshes of at least size 10CII+ formed by the fine wire are arranged and laminated in the synthetic resin film layer. Furthermore, the laminated glass for a vehicle is characterized in that the fine wire has a diameter of 100 to 10 μm and a tensile strength of 600 to 100 Kg/mm 2 . Furthermore, at least one or more of the fine wires and/or the network formed by the fine wires are formed in the adhesive layer portion or/and the coating area of the ceramic baked layer in the peripheral area of the laminated glass for vehicles. The present invention provides the laminated glass for a vehicle, characterized in that the glass plate containing fine wires and the synthetic resin film layer containing fine wires are arranged and laminated.

Here, at least a pair of supporting portions formed of at least the fine wires protruding from the end surface of the peripheral edge of the laminated glass for vehicles and/or a fixing member to which the fine wires are fastened and supported are disposed. This is because the end faces of the laminated glass are more resistant to external pressure than the surface of the laminated glass itself, and by supporting and fixing fine wires on the end faces, it is possible to alleviate external forces, etc. on the outside glass plate, and to reduce the external pressure applied to the inside of the car. Each layer/plate can be further reinforced, fine wires can be made more effective, and the vehicle laminated glass itself can be made lighter, more resistant to penetration, less tearing, and higher fracture resistance. This is because it can be achieved.

Further, in the peripheral edge portion of the laminated glass for vehicles, a portion of the support portion and/or the fixing member or/
The reason why it is preferable to have a molding that is integrally molded by direct injection molding to surround the peripheral edge part with a synthetic resin is to embed the whole part and surround the peripheral edge part with a synthetic resin. This is because the effect is even more excellent as it is retained and protected.

Furthermore, an adhesive layer portion of at least one region of the area within 2001 from the edge of the laminated glass for vehicles, and/or the area within 1001 within symmetrical to the center line of the laminated glass for vehicles, or the entire area of the laminated glass. The reason why it is preferable to arrange and laminate at least one fine wire and/or a plurality of meshes of at least size 10a11 made of the fine wires is to ensure better transparency, reduce weight, and laminate as needed. This is to adjust the flexibility and elasticity to make it more resistant to destruction, more resistant to penetration, and more resistant to being thrown out.
area within m or/and width 1 symmetrically to the center line
It is preferable to use the area within 00 mrr1 and fine wires mainly in the windshield or rear glass, and the entire area and the mesh to mainly use in the rear glass, side glass and roof glass. In the case of a so-called black frame, it is more preferable to provide at least - ie, a plurality of lines and/or the mesh. In addition, from the viewpoint of penetration resistance, etc., it is preferable that the spacing between the fine wires is such that at least two fine wires can hang around the passenger's head, and the mesh size should be larger than LocIA. This is because of the above-mentioned considerations, transparency, etc., and is preferably about 25 cal or more.

The reason why at least one glass plate having a thickness of 4III11 or less is used is, for example, when a transparent synthetic resin film or a synthetic resin layer is coated and laminated on two glass plates, that is, a single glass plate, directly or through an adhesive layer. For example, a glass plate is used on the outside of the vehicle, and the thickness of the plate is 4 mm or less, preferably about 3.5 mm to 1.1 mm, more preferably about 3.0 mm to 1.5 mm, and for example, an adhesive layer or an adhesive layer. Also, when using a glass plate on the outside of the vehicle interior via a synthetic resin film layer, the thickness of the glass plate for the outside of the vehicle is preferably about 3.0 mm to 1.1 mm, more preferably about 2.5 mm to 1.5 nm+m. For the inside of the car, the plate thickness is preferably about 2.0 mm to 1.0 mm, more preferably 1.8 mm to 1.2 mm.
It is about mm. The glass plate may be either inorganic or organic, and may be any transparent material such as a so-called glass plate, a polycarbonate resin plate, an acrylic resin plate, etc. Preferably, it is an inorganic glass plate, and colorless or various colored ones or Those with infrared and ultraviolet absorption functions, those that have been made multifunctional by various surface treatments such as film coating, and those that have increased strength or various reinforcements as well as raw boards, and those that are bent.
Various types of processed materials, such as those containing fine wires, are used. For example, it is preferable to use glass panels outside the vehicle that have been strengthened and subjected to various types of reinforcement treatments, and for interior glass panels, those that have undergone various types of reinforcement treatments. By combining it with the above, it becomes even more highly functional and multifunctional, making it even more desirable.

Furthermore, examples of transparent adhesive layers include liquid adhesion, film welding, etc. of polyvinyl butyral (PVB) film layers, adhesive thermoplastic polyurethane resin film layers, ethylene-vinyl acetate copolymer (EVA) resin film layers, etc. Among these, a PVB film is preferable, and the thickness of the film layer is about 1000 μm to 50 μm, preferably about 800 μm to 130 μm, and more preferably 76 μm.
It is about 0 μm to 350 μm.

Furthermore, examples of the transparent synthetic resin film layer include polyethylene terephthalate (PET), polyurethane, vinylidene chloride, polyvinyl chloride, etc.
Among them, PET or polyurethane is preferable, and the thickness is about 1000 μm to 25 μm.
Preferably 80,081 to 508 m, more preferably 50
It is 0 μm to 100 μm. The surface of the film layer may be coated with various multifunctional layers such as a hard coat layer, an infrared and ultraviolet reflection/absorption film layer, and a colored layer. Alternatively, the liquid material may be applied directly to form a fixed film layer, and in this case, an adhesive layer may or may not be used.

Furthermore, the diameter of the fine wire is 100~
lOμm, tensile strength 600-100Kg/m
m2 is preferable because the diameter is 10
If it exceeds 0 μm, for example, the thickness of the adhesive layer may be compressed and act in a shearing manner, and passengers may be concerned about seeing through the adhesive layer. Therefore, it is difficult to reinforce elasticity, penetration resistance, etc., and it tends to be difficult to achieve the intended purpose in terms of strength. Also, the tensile strength is 600kg/
If the diameter exceeds 600 μm, it becomes difficult to obtain the desired flexibility or elasticity.
This is because it is difficult to obtain a tensile strength that exceeds Kg/mm2, and if it is less than 100 Kg/m+n2, it is difficult to support the impact on the thin glass plate on the outside of the vehicle, that is, the elasticity, penetration resistance, etc. of the synthetic resin film layer or the adhesive layer. This is because it becomes difficult to reinforce the structure. Therefore, for example, the diameter is about xopm and the weight is 200Kg/mm2 to 550Kg.
A material having a tensile strength of /mra2 is preferable. In any case, if the difference in tensile strength between the constituent layers and the fine wire is too large or too small, the intended purpose cannot be achieved. The fine wires may be made of metal, inorganic or organic, but are preferably made of metal or inorganic, with metal being more preferred. Note that it is better to match the thermal expansion coefficients of the wires as much as possible;
It goes without saying that various treatments may be applied to the surface of the wire.

Note that the fine wires may be arranged and laminated in advance by being placed on an adhesive film layer or the like by means of adhesion or the like, or they may be placed during lamination. Furthermore, there are no particular limitations on the lamination method or the method for embedding fine wires, and any known method may be used as long as it can be carried out efficiently.

[Effect]

The laminated glass for vehicles of the present invention includes a thinner glass plate, a transparent adhesive layer, a transparent synthetic resin film layer,
By skillfully combining various types of plates/layers containing fine wires and fine wires and laminating and integrating them, the fine wires are supported and fixed on the peripheral end face of the laminated glass for vehicles. More preferably, by arranging specific fine wires in specific areas of the laminated glass, sufficient transparency can be ensured, and the weight can be further reduced without reducing adhesive strength or weather resistance durability. Moreover, by reinforcing the elasticity, penetration resistance, etc. of the synthetic resin film # part and the adhesive layer part, the flexibility, elasticity, etc. of the laminated glass itself can be optimized. It absorbs and softens impact, resulting in higher fracture resistance, and the impact received by occupants' heads in the event of a collision is small and difficult to penetrate.In addition, it is resistant to fracture from flying objects, such as pebbles, from the outside of the vehicle. When shattered, the glass inside the car can be broken into non-sharp pieces, reducing the risk of lacerations to the human body.It also provides adequate visibility and is resistant to falling and shattering, and is multi-functional due to its optical and thermal properties. It can also be used to reduce energy consumption, thereby contributing to both resources and the environment through energy conservation, etc., and can also improve safety and livability in terms of both human and physical aspects. .

[Example] An example of the present invention will be described below based on the drawings. However, the present invention is not limited to these embodiments.

FIG. 1 shows a laminated glass for a vehicle according to the present invention, (a) is a front plan view thereof, (b) is a long side sectional view taken along line BB in (a), and (c ) figure and (d) figure is (a)
The cross-sectional views of the short side taken along the lines C-C and D-D in the figure are shown respectively, and the laminated glass for a vehicle is a windshield for an automobile, and the bent size is approximately 100 mm ( To) X60an, vehicle exterior glass plate 2
The glass plate 3 on the inside of the car with the black frame 7 has a thickness of about 1.5 mm and has been strengthened, and has a diameter of 10 μm to 12 μm.
Thickness of about 0.76 mm and made by adhering fine wires of 5゜5゛ with a tensile strength of about 550 Kg/mm2.
The adhesive layer 4 of PVB film having a thickness of approximately 1.0 mm is used and is laminated and integrated using a conventional lamination method.

(A> The figure is a front plan view in which two of the above-mentioned fine wires 5.5゛ are placed in an area within about 1100V from the edge of the glass plate and in an area with a width of about 50 mm symmetrical to the center line. (b) is a sectional view of the long side taken along line B-B in figure (a), and is a transparent adhesive layer 4.
A vertical wire 5 and a horizontal wire 5'' are arranged and laminated on the surface of the VB film on the inside glass plate 3 side and on the side surface of the outside glass plate 2, respectively, and the portion of the wire 5'' protrudes from the upper peripheral edge end surface of the laminated glass. This figure shows a state in which the fiI6 is supported and fixed as a substantially knob-shaped support fiI6, and (c) and (d) are cross-sections of the shorter side taken along the lines CC and D-D in figure (a), respectively. In the figure, vertical and horizontal wires 5, 5 are
Figure (c) shows a state in which the wires 5 are stacked and the portion of the wire 5 protruding from the upper peripheral end surface of the laminated glass supports and fixes the fastening part 9 to the fixing member 8, and the state in which the wire 5 is not present. are shown in Figure (d).

The laminated glass for vehicles obtained above was evaluated for various physical properties by tests according to JIS standards for automobiles, such as impact resistance, penetration resistance,
When we tested transparency, tear resistance, weather resistance, etc., we found that the conventional product (
For example, two glass plates of the same size with a thickness of 2 mm and 0.7
This is an improvement over the 6mm PVB laminated glass (laminated glass made of pus), and it is certainly superior to the case without the supporting parts and fixing members, and it is also superior to the conventional product. The result is laminated glass for vehicles that is approximately 12% lighter.

FIG. 2 shows another embodiment of the present invention, in which the peripheral edge of the automobile windshield shown in FIG. 1 is integrally formed by direct injection molding to surround the edge with synthetic resin. It shows the state in which the molded molding 10 is attached,
Figure (e) shows a state where the support part 6 is embedded and surrounded, and Figure (f) shows a state where the fixing member 8 supporting and fixing the fastening part 9 is surrounded so as to be embedded except for the part to be fitted into the vehicle body. It is an enlarged partial side sectional view.

When the obtained windshield was subjected to various physical property evaluations similar to those described above, it was found that the support part and fixing member could be made more stable, and the laminated glass for vehicles was equivalent to or better than the above-mentioned glass. Moreover, the weight was reduced by approximately 22% compared to the conventional product.

FIG. 3 shows another example of an automobile windshield having a transparent synthetic resin film layer 11, in which a synthetic resin film layer (PET) 11 with a thickness of about 100 μm is coated with a hard cord layer 12 on the inside surface of the vehicle, and the plate thickness. A PVB film 4 with a thickness of about 0.76 mm is sandwiched between a glass plate 2 on the outside of the car with a thickness of about 3.5 mm, and fine wires are placed on the inner surface of the outside of the car in the same way as described in Fig. 1. The molding 10 surrounds the fixing member so as to be supported and fixed by a fastener 89 using a wire 5 protruding from the peripheral end face of the laminated glass.
FIG. 3 is a partially enlarged side cross-sectional view of the laminated glass for vehicles.

When the obtained windshield was subjected to various evaluations similar to those described above, the results were similar to those described above, and the weight was reduced by approximately 24%.
We were able to reduce the front and back.

Incidentally, when applying the support portion or the fixing member, the adhesive layer film or the synthetic resin film layer may be supported and fixed at the same time.

Furthermore, in addition to the present invention described above, various embodiments of the present invention were carried out, and the laminated glass for vehicles was obtained which showed evaluation results equal to or better than those described above and a reduction in weight.

〔Effect of the invention〕

According to the present invention, while laminating and integrating various combinations using thin glass plates with a thickness of 4IIIn or less, transparent adhesive layers, transparent synthetic resin film layers, etc., fine particles are formed in various areas of the laminated glass using the plates and layers. By arranging wires that protrude from the peripheral edge of the laminated glass and supporting and fixing the wires at the support section or at the fastening section of the fixing member, the effect of the fine wires is more reliably and efficiently exerted. This makes it possible to ensure transparency without obstructing the visibility of passengers, etc., and it is possible to reduce weight without reducing weather resistance and durability, and to achieve optimal flexibility and elasticity. It absorbs and alleviates shock, increases fracture resistance, and has high penetration resistance, low tear resistance, and resistance to collisions with passengers and flying objects such as pebbles.
It is highly resistant to falling and scattering, increasing safety, and can be multi-functional and highly livable, contributing to a better environment and resource conservation in terms of both human and physical aspects. It has the effect that it can be used not only for vehicles but also for a wide range of applications such as architecture, interior decoration, and furniture.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of the laminated glass for vehicles according to the present invention, (a) is a front plan view thereof, (b)
The figures are (a) a sectional view along the long side along the line B-B in the figure, and (c
) and (d) are sectional views of the short side of FIG.
f) is a partially enlarged side sectional view showing another embodiment of the present invention in which a molding is directly and integrally applied to the one in FIG. 1;
The figure is a partially enlarged side sectional view showing another embodiment of the present invention in which a molding is directly and integrally applied using a synthetic resin film layer. 1-1 Vehicle laminated glass 2-11 Vehicle outside glass plate 3
---Car inside glass plate 4-11 adhesive layer 5.5'-
11 Fine wire 61---Support part 8---Fixing member
10-m-mol 11--synthetic resin film layer

Claims (1)

[Claims] 1) At least one glass plate with a thickness of 4 mm or less, a transparent adhesive layer, a transparent synthetic resin film layer, and a fine wire containing a fine wire embedded approximately in the center of the cross section. In a laminated glass for a vehicle formed by laminating and integrating the glass plate or the synthetic resin film layer containing fine wires and further fine wires in various appropriate arrangements, the peripheral edge of the laminated glass for a vehicle is A laminated glass for a vehicle, characterized in that at least one pair of support parts formed of at least the fine wires and/or fixing members to which the fine wires are fastened and supported are arranged, protruding from an end surface. 2) At the peripheral edge of the vehicle laminated glass, a portion of the support portion and/or the fixing member or/
2. The laminated glass for a vehicle according to claim 1, further comprising a molding integrally formed by direct injection molding to surround the peripheral edge portion with a synthetic resin. 3) The fine wire is inserted 2 times from the edge of the laminated glass for vehicles.
00 mm or less, or/and a region with a width of 100 mm or less symmetrically to the center line of the vehicle glass, or an adhesive layer portion of at least one region of the entire area of the laminated glass, and/or the wire-containing glass plate, or the wire. The vehicle according to claims 1 and 2, characterized in that at least one fine wire and/or a plurality of meshes each having a size of at least 10 cm^2 made of the fine wire are arranged and laminated in the synthetic resin film layer. laminated glass. 4) The fine wire has a diameter of 100 to 10μ
m, tensile strength 600-100Kg/mm^2
The laminated glass for a vehicle according to any one of claims 1 to 3, characterized in that: 5) At least one or more of the fine wires and/or the network formed by the fine wires are formed in the adhesion layer portion and/or in the covering area of the ceramic baked layer or the like in the peripheral area of the laminated glass for vehicles. 5. The laminated glass for a vehicle according to claim 1, wherein the glass plate containing fine wires and the synthetic resin film layer containing fine wires are arranged and laminated.