JP2003034148A - Vehicle glass window - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle glass window capable of arranging a glass plate flush to dispense with the formation of a ceramic print to an end part when forming a mold for supporting the glass plate by the end surface of the glass plate to make the glass window into a flush surface. SOLUTION: A stepped part is formed in at least a part of the peripheral part of the glass plate 1, and the mold 2 for supporting the glass plate is fitted to the stepped part flush with the glass surface, and the glass plate 1 is fixed to a vehicle body 3 by the mold 2. The glass plate is a reinforced glass never generating broken pieces having long edges of 30 mm or more from the stepped part in the execution of a breakdown test according to JIS R3212.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass window used in a vehicle such as an automobile, and more particularly to a glass window for a vehicle using a tempered glass plate.

[0002]

2. Description of the Related Art In recent years, in vehicles, particularly automobiles, flash surfaces of vehicles have been used to reduce air resistance, eliminate wind noise, improve aesthetics, and the like. The obstacles to flash surface formation in vehicle glass windows are
As shown in FIG. 12, it is a protrusion of a molding 62 for attaching the glass plate 61 and the vehicle body 63. Therefore, in FIG.
As shown in FIG. 1, a glass window for an automobile in which a glass plate 51 is flush with a vehicle body 53 by using a molding 52 formed by extrusion molding has been proposed. This mall 52
Is molded by directly injecting resin into the edge of the glass plate by remote control.

On the other hand, in a vehicle glass window, as shown in FIG.
Also, as shown in FIG. 12, ceramic prints 55 and 65 are often applied to the peripheral edge of the glass plate. The ceramic prints 55 and 65 are formed so as to cover the mounting members around the window frame, electrical components, and the like to adjust the appearance of the vehicle body. Usually, the ceramic prints 55 and 65 are formed by printing a paste containing a pigment, glass frit, etc. on a predetermined area on the surface of a glass plate by a silk screen, heating the glass plate and baking the paste in the above range. It

[0004]

As shown in FIG. 11, in a glass window for a vehicle in which a molding 52 is arranged so as to contact only an end surface of a glass plate 51 to realize a flash surface, a ceramic print 55 is attached to a glass. It is necessary to form up to the end portion (hereinafter, referred to as “peripheral end portion”) 56 of the peripheral region of the plate. This is because the vicinity of the peripheral edge portion of the glass plate 51 cannot be covered by the molding 52. However, it is not easy to print the paste (perform so-called just-edge printing) while aligning the ends of the region where the ceramic print is formed with the peripheral ends of the glass plate. The applied paste may drip from the end surface of the glass and become a defective product. Moreover,
Since the silk screen is applied to the corners of the glass during printing, the life of the screen is shortened. Due to these circumstances, the above-mentioned conventional method has a problem that it is difficult to efficiently manufacture a flash-surfaced glass window for a vehicle.

For a vehicle resin window, a proposal for realizing flash surfaceization has been made by a method other than the method shown in FIG. 11 (for example, JP-A-63-828).
No. 14, Japanese Utility Model Laid-Open No. 3-98115, Japanese Patent Laid-Open No. 7-
137535). However, the resin plate is a material that is essentially different from the glass plate, which is a brittle material. Unlike the glass plate, the resin plate has a problem in surface hardness that the surface is easily scratched rather than a problem in strength associated with processing. Further, in the resin window, the above problems associated with the formation of the ceramic print do not occur. Therefore,
The structure of the resin window as described in the above publication does not serve as a reference for solving the above problems.

The present invention has been made in view of the above circumstances, and provides a glass window for a vehicle in which glass plates are arranged flush with each other and it is easy to secure an aesthetic appearance using a ceramic print. With the goal.

[0007]

To achieve the above object, a vehicle glass window of the present invention comprises a glass plate and a supporting member interposed between the glass plate and the vehicle body. Has a stepped portion in at least a part of the peripheral region, the support member is fitted in the stepped portion and is disposed substantially flush with the glass plate, and the glass plate is JIS R321.
When the crushing test was carried out according to 2,
It is characterized by being a tempered glass plate which does not generate fragments having a long side of 30 mm or more.

By providing the step on the peripheral portion of the glass plate as described above, it is possible to obtain a glass window for a vehicle which is made to have a flash surface and whose appearance is easily improved by ceramic printing. That is, when the ceramic print is formed because the supporting member fitted in the stepped portion covers the peripheral edge of the glass plate, it is necessary to print the paste so that the edge matches the peripheral edge of the glass plate. There is no. Furthermore, even if it is destroyed, there is little possibility of danger to the human body.

As described above, in the vehicle glass window of the present invention, it is preferable that the ceramic print is formed in the peripheral region of the surface of the glass plate.

The vehicle glass window of the present invention is preferably provided with a tempered glass plate as a glass plate. In particular, in the step portion, the difference in thickness between the thin portion and the thick portion is 0. It is preferable to provide a tempered glass plate having a thickness of 5 mm or more and having a thickness of the thin portion larger than half the thickness of the thick portion. According to these preferable examples, it is possible to provide a glass window provided with a window material having improved strength. In particular, by adjusting the thicknesses of the thin portion and the thick portion as described above, it is possible to obtain a glass window having sufficient strength while realizing flash surface formation.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partial cross-sectional view showing one form of a vehicle glass window of the present invention. A step is provided on the outside surface of the glass plate 1 of the glass window for a vehicle, and the glass plate 1 has a thinned portion near the peripheral end portion. This thin part 9
A molding 2 is fitted into the molding 2, and a glass plate is supported by the molding 2. As shown in FIG. 1, the glass plate 1 and the molding 2 are arranged so as to be flush with each other on the outer surface of the vehicle, and these members are attached to the vehicle body 3 so as to be flush with the vehicle body 3. ing.

A ceramic print 5 is formed on the peripheral region of the inner end of the glass plate 1. The ceramic print 5 is formed as an opaque layer such as black so that the peripheral area of the glass plate 1 cannot be seen through from the outside. Further, such an opacity effect is also obtained by the molding 2 in the vicinity of the peripheral edge portion of the glass plate. An end portion 5b near the peripheral edge portion of the glass plate in the area where the ceramic print 5 is formed is in an area that is covered with the molding 2 and is not transparent. On the other hand, the end 5a near the center of the glass plate in the area where the ceramic print 5 is formed is
It is located closer to the center of the glass plate than the end of the molding 2 on the center side of the glass plate.

FIG. 2 is a partial cross-sectional view showing another form of the vehicle glass window of the present invention. This vehicle glass window is different from the vehicle glass window shown in FIG. 1 in that the LED 4 is incorporated in the exterior surface of the molding 2 of the molding 2. The LED 4 can be used as a high mount stop lamp, for example. The member to be embedded in the mall 2 is LE
Not limited to D, EL and other light emitting members can be used. Further, for the purpose of decoration or the like, a reflecting member having an appropriate light ray reflectance may be used. in this way,
In the glass window for a vehicle of the present invention, by utilizing the fact that the molding 2 exposed to the outside of the vehicle is widened, the light emitting member, the light reflecting member, etc. are arranged on the exposed surface of the molding 2 to the outside of the vehicle. You may These members are also preferably arranged flush with the molding 2, as shown in FIG.

FIG. 3 is a partial cross-sectional view showing still another form of the glass window for a vehicle according to the present invention. In this vehicle glass window, the molding 6 is formed in advance by injection molding so as to cover the peripheral edge portion of the glass. The material of the molding 6 is not particularly limited, but for example, PVC (polyvinyl chloride) can be used. By using the injection molding method as described above, it is possible to more efficiently manufacture the vehicle window in which the glass plate and the molding are arranged flush with each other.

In the vehicle glass window shown in FIG. 3, the shape of the molding 6 may be different from that of the molding 2 shown in FIGS. 1 and 2, and the adhesive 7 is thickly filled to support the glass plate 3. The dam member 8 for stopping this is also prepared. Further, due to such a difference in shape, the molding 6 is arranged so as to project slightly outside the molding 2 from the molding 2 shown in FIGS. 1 and 2. But mall 6
Similar to the conventional molding 62 as shown in FIG. 12, although has a sufficient thickness to support the glass plate 1, it does not protrude further to the outside of the vehicle than the conventional molding 62. As described above, the present invention provides a support member such as a molding,
It includes all vehicle glass windows that are arranged substantially flush with the glass plate by utilizing the stepped portion of the glass plate while supporting the glass plate with the strength required for use.

FIG. 4 is a plan view of an embodiment of the glass plate 1 used in the vehicle glass window of the present invention. A thin portion 9 having a thin plate thickness is formed on the entire circumference of the glass plate 1. The thin portion 9 is formed in a region having a substantially constant width from the peripheral edge of the glass plate. The ceramic print 5 also covers the thin portion 9 over the entire circumference of the glass plate and is formed over a wider area than the thin portion 9. Of course, the ceramic print 5 is preferably formed in order to adjust the appearance, but it is not essential for the vehicle glass window of the present invention. The ceramic print 5 may be partially formed in the peripheral area of the glass plate.

The steps in the peripheral area of the glass plate may be formed on the entire circumference of the glass plate, but may be formed partially on the outer circumference of the glass plate. When a step is partially formed on the outer periphery of the glass plate in this way, in order to increase the area of the thin portion formed by the step, the part where the step is formed is subjected to a cutting process, a notch process, or the like. May be. By partially processing the peripheral edge portion of the glass plate in this manner, the attachment strength of the glass plate can be ensured even when the glass plate is partially supported.

In the example shown in FIG. 5, substantially semicircular burring is performed at several points on the peripheral edge of the glass plate 11, and steps are formed on the glass plate inside the burred semicircular end 14. The thin portion 19 is formed by processing.

The glass plate 11 shown in FIG. 5 is, for example, as shown in FIG.
It can be attached to the vehicle body 13 using the bolt 12 as shown in FIG. In the vehicle window glass shown in FIG. 6, the bolt 12 as a supporting member forms the thin portion 19 of the glass plate 11 together with the nut 17 and the cushioning material 18 in the vehicle body 1.
It is fixed at 3. Further, the surface of the bolt 12 is arranged so as to be flush with the glass plate 11, and the bolt 12 is also flush with the vehicle body 13.

In the glass plate 11 having the peripheral end portion processed as shown in FIG. 5, the shape of the peripheral end portion 14 which has been subjected to the edge processing is not limited to a semicircle, and may be a rectangle or another shape. However, in order to secure the strength of the glass plate, it is preferable that the angle 16 formed by the processed peripheral edge portion 14 and the glass peripheral edge portion adjacent to the peripheral edge portion is 90 ° or more.

In this case as well, the ceramic print 15 may be formed on the entire circumference of the glass plate (see FIG. 5), but may be formed partially so as to cover only the peripheral portion of the edge portion, for example.

Although the glass window in which the glass plate is supported by the molding or the bolt and attached to the vehicle body has been described above, the supporting member for the vehicle glass window of the present invention is not limited to these. For example, as shown in FIG. 7, a U-shaped metal fitting 22 fitted in the end portion of the glass plate 21 may be used as a support member.

In the example shown in FIG. 7, a resin layer 23 is provided inside the U-shaped metal fitting 22 so that the impact transmitted to the glass plate 21 is mitigated. As shown in FIG. 7, such a glass plate with a metal fitting is attached to a vehicle body (not shown) by, for example, a bolt 25 attached to a side surface of the metal fitting 22.

As explained above, in the vehicle glass window of the present invention, the glass plate and the molding are arranged flush with each other on the vehicle outside window surface of the vehicle glass window, and more preferably, on this window surface. , The glass plate, the molding, and the vehicle body are arranged flush with each other.

The glass window for vehicles of the present invention is preferably used as a glass window for automobiles, but is not limited to this.
It can be applied to glass windows of various vehicles. Further, it is not always necessary to dispose the window surface, in which the glass plate is flush, on the outside of the vehicle. For example, if the vehicle glass window of the present invention is used for the door glass window of a railroad car with the window surface that has been made into a flash surface, the risk that the passenger's finger touching the door may get caught in the door storage part. It can be reduced.

Materials conventionally used can be applied to various supporting members used in the vehicle glass window of the present invention. For example, various soft synthetic resin materials can be used for the molding. The ceramic print can also be formed by printing a paste containing a pigment or the like which has been applied to a glass plate for vehicles on a silk screen, and heating and baking the glass plate. The peripheral portion of the glass plate can also be processed by mechanical grinding using a cylindrical wheel, a coupling wheel, or the like. As the glass plate, a soda lime glass plate that is colored if necessary is usually used.

A tempered glass plate is preferably used as the glass plate. The tempered glass plate can be obtained by subjecting a glass plate having a peripheral portion subjected to predetermined processing to so-called air-cooling tempering. In this step, the glass plate is often heated to a temperature at which it can be formed and is bent and formed along a mold having a predetermined shape. For vehicle glass plates,
This is because bent glass is often used for reasons of design and aerodynamic characteristics. The glass plate is usually heated to a temperature in the vicinity of the softening point of the glass used, for example, to a temperature above the strain point and below the softening point of the glass. A cooling gas is blown to the heated and bent glass plate as required. When the glass plate is rapidly cooled after being heated in this manner, a compressive stress layer is formed on the surface layer of the glass plate, and as a result, the strength of the glass is improved.

As described above, the compressive stress layer is present on the surface layer of the tempered glass plate. On the other hand, inside the tempered glass plate, there is a tensile stress layer balanced with this compressive stress layer. Therefore, as described above, when partially grinding the surface of the glass plate to form the thin portion, it is necessary to consider the influence of the local change in the thickness of the glass plate on the stress layer. .

From this point of view, the preferable range of the thickness of the tempered glass plate used for the vehicle glass window of the present invention will be described below. FIG. 8 is a partial cross-sectional view of a glass plate with thinned ends for use in the vehicle glass window of the present invention. As shown in FIG. 8, one main surface 33 of the glass plate 1 is partially ground so that a step 3 is formed at the end of the glass plate.
5 occurs, and the thin portion 31 is formed. In this thin portion, the glass plate having the thickness T is ground by the thickness τ to be thinned to the thickness t.

FIG. 9 is a cross-sectional view near the end of another form of the tempered glass sheet for a vehicle of the present invention. This glass plate 21
Differs from the glass plate 1 in that steps 35 and 36 are provided on both main surfaces. Also at this end, the glass plate having the thickness T is ground by the thicknesses τ and τ ′ to obtain the thickness t.
The thin portion 31 is formed.

The thickness T of the thick portion, the thickness t of the thin portion, and the grinding thickness τ and τ ′ in FIGS. 8 and 9 are preferably determined so as to satisfy the following conditions. 3.5 mm ≦ T ≦ 6.0 mm (1) t / T> 1/2 (2) τ ≧ 0.5 mm (3) τ ′ ≧ 0 (4)

Especially, the condition of the above formula (2) is important for maintaining the strength of the glass plate. When t / T ≦ 1/2, the strength of the tempered glass plate in the thin portion is reduced. On the other hand, the condition of the above equation (3) defines the height of the step portion. As shown in the formula (3), it is preferable that the tempered glass for a vehicle of the present invention has a step difference of 0.5 mm or more. Used for. Further, as shown in the above formula (1), it is preferable that the tempered glass plate used for the vehicle glass window has a thickness in a range that does not become excessively heavy while providing necessary strength.

The following strength test of the tempered glass plate was actually carried out. A glass plate having edges as shown in FIG. 8 and reinforced by grinding so that the plate thickness ratios t / T have different values was produced by the method described above. A green transparent soda-lime glass plate was used as the glass plate, and the plate thickness was 3.5 mm, 5 mm, or 6 mm. A bending test was carried out on the thinned end portion of the glass plate to investigate the relationship between the plate thickness ratio t / T and the bending strength of the glass plate. FIG. 10 shows the ratio of the cracking load of each glass plate to the cracking load when the edge of the glass plate of each plate thickness is not ground (plate thickness ratio t / T = 1).

As shown in FIG. 10, it was found that the bending strength of the glass plate was greatly reduced in the range of t / T ≦ 1/2 at any plate thickness. On the other hand, in the range of t / T> 1/2, it was confirmed that even if the end portion was thinned, a bending strength substantially comparable to that of the tempered glass plate having no end portion processed was obtained (specifically, In particular, 80% or more of the average strength when t / T = 1 was secured).

The tempered glass plate has finer fragments and does not have a sharper shape than the non-tempered glass plate.
Such a form of destruction is an important property of the tempered glass plate from the viewpoint of ensuring the safety of the human body in the event of an accident. Therefore, a crushing test was carried out for each glass plate manufactured in the same manner as above. The crushing test was carried out by the method described in JIS R 3212. The results are summarized in Table 1.

[0036]

[Table 1]

The evaluation criteria in Table 1 are as follows. In-plane (in the main surface where no step is formed): Good: Meets the standard defined in JIS. X: Does not meet the standard defined in JIS. Step portion: ◯: There is no elongated fragment having a long side of 30 mm or more. Δ: There are less than 10 elongated fragments having a long side of 30 mm or more. X: 10 or more elongated fragments having a long side of 30 mm or more are present.

As shown in Table 1, in the range of t / T ≦ 1/2, the fragments generated from the step portion became large, but t / T ≦ 1/2
In the range of T> 1/2, the fragments generated from the step portion were sufficiently small. As described above, it was confirmed that by setting t / T> 1/2, a tempered glass plate was obtained as fragments that were less likely to pose a danger to the human body even if destroyed.

[0039]

As described above, according to the present invention,
A ceramic print is formed in spite of being a flash surface by having a step portion on at least a part of the peripheral edge, the support member being fitted into the step portion and being arranged substantially flush with the glass plate. Thus, even when the appearance is adjusted, it is not necessary to print the paste so that the end portions are aligned with the peripheral end portions of the glass plate, so that it is possible to provide a vehicle glass window that can be efficiently manufactured.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view of an embodiment of a vehicle glass window of the present invention.

FIG. 2 is a partial cross-sectional view of another form of the vehicle glass window of the present invention.

FIG. 3 is a partial cross-sectional view of yet another form of the vehicle glass window of the present invention.

FIG. 4 is a plan view showing one form of a glass plate.

FIG. 5 is a plan view showing another form of the glass plate.

6 is a partial cross-sectional view showing one embodiment of a vehicle glass window of the present invention using the glass plate shown in FIG.

FIG. 7 is a partial cross-sectional view showing a glass plate to which a metal fitting is attached as a support member.

FIG. 8 is a partial cross-sectional view showing one form of a glass plate.

FIG. 9 is a partial cross-sectional view showing another form of the glass plate.

FIG. 10: Thickness ratio t at the stepped portion of the tempered glass plate
It is a figure which shows the relationship between / T and the bending strength of a glass plate.

FIG. 11 is a partial cross-sectional view showing a conventional flash-surfaced vehicle glass window.

FIG. 12 is a partial cross-sectional view showing a conventional vehicle glass window.

[Explanation of symbols]

1, 11, 21 Tempered glass plate for vehicles 2,6 mall 3, 13 body 5,15 Ceramic print 9, 19, 31 Thin part 12 volt 23, 24 Polishing part 35, 36 steps

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kyoichi Sukuri             7-28 Kitahama 4-28, Chuo-ku, Osaka City, Osaka Prefecture             Within Nippon Sheet Glass Co., Ltd. F-term (reference) 3D201 AA01 AA18 AA26 AA37 BA01                       CB01 DA18 EA01A FA08

Claims (2)

[Claims] 1. A glass plate, and a support member interposed between the glass plate and a vehicle body, wherein the glass plate has a step portion in at least a part of a peripheral region, and the support member has the step portion. The glass plate is a tempered glass plate which is fitted to the glass plate and is arranged substantially flush with the glass plate, and the glass plate does not generate fragments having a long side of 30 mm or more from the step portion when a crushing test is performed according to JIS R3212. A glass window for a vehicle, which is characterized in that 2. The glass window for a vehicle according to claim 1, wherein a ceramic print is formed on a peripheral region of the glass plate.