JP2000108681A - Vehicle glass window - Google Patents

Abstract

PROBLEM TO BE SOLVED: To arrange a glass plate flush and easily ensure the beautiful appearance by use of a ceramic print by providing a stepped part on at least a part of the peripheral area of the glass plate and fitting a support member to the stepped part. SOLUTION: A stepped part is provided on the vehicle outer side surface of a glass plate 1 for vehicle glass window and the vicinity of the peripheral end part of the glass plate 1 is thinned. A mold 2 is fitted to this thin part 9 to support the glass plate 1 by the mold 2. The glass plate 1 is arranged flush with the mold 2 on the vehicle outer side surface. Further these members are mounted on a body 3 so as to be flushed also with the body 3. According to this structure, since the mold 2 fitted to the stepped part covers the peripheral end part of the glass plate 1, it is not necessary to print a paste so that the end part is conformed to the peripheral end part of the glass plate 1 when a ceramic print is formed. Accordingly, the surface is flushed, and the beautiful appearance by ceramic print can be easily improved.

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 for 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, a vehicle, particularly an automobile, has been designed to have a flash surface of a vehicle body in order to reduce air resistance, eliminate wind noise, improve aesthetic appearance, and the like. The obstacle to flash surfacing in vehicle glass windows is
As shown in FIG. 12, the protrusion of the molding 62 for attaching the glass plate 61 and the vehicle body 63 is provided. Therefore, FIG.
As shown in FIG. 1, an automotive glass window in which a glass plate 51 is made flush with a vehicle body 53 by using a molding 52 formed by extrusion molding has been proposed. This mall 52
Is formed by directly injecting resin into the end of the glass plate by remote control.

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

[0004]

As shown in FIG. 11, in a glass window for a vehicle in which a molding 52 is arranged so as to be in contact with only the end face of a glass plate 51 to realize a flash surface, the ceramic print 55 is made of glass. It is necessary to form up to the edge 56 (hereinafter referred to as “peripheral edge”) of the peripheral area of the plate. This is because the molding 52 cannot cover the vicinity of the peripheral edge of the glass plate 51. However, it is not easy to print the paste (implement a so-called just edge print) while aligning the edge of the area where the ceramic print is to be formed so as to match the peripheral edge of the glass plate. In some cases, the applied paste drips from the end surface of the glass and becomes a defective product. Moreover,
When printing, the screen life is shortened because the silk screen covers the corners of the glass. Under these circumstances, the conventional method has a problem that it is difficult to efficiently manufacture a glass window for a vehicle having a flash surface.

For resin windows for vehicles, proposals have been made for realizing a flash surface by a method other than the method shown in FIG. 11 (for example, Japanese Patent Application Laid-Open No. 63-828).
No. 14, JP-A-3-98115, and JP-A-7-115.
137535). However, the resin plate is a material substantially different from the glass plate which is a brittle material. Unlike a glass plate, a resin plate has a problem in surface hardness that the surface is more easily damaged than a problem in strength due to processing. Further, in the resin window, the problem associated with the formation of the ceramic print as described above does not occur. Therefore,
The structure of the resin window described in the above publication is not a reference for solving the above-mentioned problem.

SUMMARY OF THE INVENTION 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 an aesthetic appearance using a ceramic print is easily ensured. With the goal.

[0007]

In order to achieve the above object, a glass window for a vehicle according to the present invention comprises a glass plate, and a supporting member interposed between the glass plate and a vehicle body. Has a step in at least a part of the peripheral region, the support member is fitted into the step, and is arranged substantially flush with the glass plate.

By providing a step on the peripheral edge of the glass plate in this way, it is possible to provide a glass window for a vehicle which has a flash surface and which can be easily improved in aesthetic appearance by ceramic printing. That is, since the support member fitted into the step portion covers the peripheral edge of the glass plate, even when forming a ceramic print, it is necessary to print the paste so that the edge coincides with the peripheral edge of the glass plate. There is no.

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

The glass window for a vehicle according to the present invention preferably includes a tempered glass plate as the glass plate. In particular, in the step portion, the difference in thickness between the thin portion and the thick portion is 0.1 mm. It is preferable to provide a tempered glass plate having a thickness of 5 mm or more and a thickness of the thin portion larger than half of a thickness of the thick portion. According to these preferred examples, it is possible to provide a glass window provided with a window material having improved strength. In particular, if the thicknesses of the thin portion and the thick portion are adjusted as described above, a glass window having sufficient strength while realizing a flash surface can be obtained.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partial cross-sectional view showing one embodiment of the glass window for a vehicle of the present invention. A step is provided on the outer surface of the glass plate 1 of the glass window for a vehicle, and the thickness of the glass plate near its peripheral end is reduced. This thin part 9
, A molding 2 is fitted, and the molding 2 supports a glass plate. As shown in FIG. 1, the glass plate 1 and the molding 2 are disposed 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 in a peripheral area of the inside end of the glass plate 2. The ceramic print 5 is formed as an opaque layer such as black so that the peripheral region of the glass plate 2 cannot be seen through from the outside. In addition, such an effect of making the glass transparent is also obtained by the molding 2 in the vicinity of the peripheral end of the glass plate. An end 5b of the area where the ceramic print 5 is formed, which is close to the peripheral edge of the glass plate, is in an area that is covered with the molding 2 and is opaque. 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 mall 2 on the glass plate center side.

FIG. 2 is a partial sectional view showing another embodiment of the vehicle glass window of the present invention. This glass window for a vehicle is different from the glass window for a vehicle shown in FIG. 1 in that the LED 4 is incorporated in the exterior surface of the mall 2. This LED 4 can be used, for example, as a high-mount stop lamp. The member to be embedded in the mall 2 is LE
Without being 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, a light emitting member, a light reflecting member, and the like are arranged on an exposed surface of the molding 2 on the vehicle outside by utilizing the fact that the molding 2 exposed on the vehicle outside is wide. It may be. These members are also preferably arranged flush with the molding 2 as shown in FIG.

FIG. 3 is a partial sectional view showing still another embodiment of the glass window for a vehicle according to the present invention. In this glass window for a vehicle, the molding 6 is formed in advance so as to cover the peripheral edge of the glass by an injection molding method. 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, a vehicle window in which a glass plate and a molding are arranged flush with each other can be manufactured more efficiently.

In the glass window for a vehicle shown in FIG. 3, the shape of the molding 6 may be different from that of the molding 2 shown in FIGS. In addition, a dam member 8 for damping this is provided. Further, due to such a difference in shape, the molding 6 is disposed so as to protrude slightly outside the vehicle than the molding 2 shown in FIGS. 1 and 2. But mall 6
Similar to the conventional molding 62 as shown in FIG. 12, although it has a sufficient thickness to support the glass plate 1, it does not protrude more outwardly than the conventional molding 62. Thus, the present invention provides a support member such as a molding,
The invention covers all glass windows for vehicles that are arranged substantially flush with the glass plate by using the step portion of the glass plate while supporting the glass plate with necessary strength in use.

FIG. 4 is a plan view of one embodiment of a glass plate 1 used for a vehicle glass window of the present invention. The glass plate 1 is provided with a thin portion 9 whose thickness is reduced over the entire circumference. 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 an area wider than the thin portion 9. Of course, the ceramic print 5 is preferably formed in order to improve the appearance, but is not essential for the glass window for vehicles of the present invention. The ceramic print 5 may be partially formed in the peripheral region of the glass plate.

The step in the peripheral region of the glass plate may be formed on the entire periphery of the glass plate, but may be partially formed on the outer periphery of the glass plate. In the case where a step is provided partially 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 portion where the step is formed is subjected to a grinding process, a notch process, or the like. You may. If the peripheral edge of the glass plate is partially processed in this way, the mounting strength of the glass plate can be ensured even when the glass plate is partially supported.

In the example shown in FIG. 5, a substantially semicircular edge processing is performed at several positions on the peripheral edge of the glass plate 11, and a step is formed on the glass plate inside the edged semicircular end portion 14. The thin portion 19 is formed by processing.

The glass plate 11 shown in FIG.
Can be attached to the vehicle body 13 using the bolts 12 as shown in FIG. In the vehicle window glass shown in FIG. 6, a bolt 12 as a support member, together with a nut 17 and a cushioning material 18, connects the thin portion 19 of the glass plate 11 to the vehicle body 1.
It is fixed to 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 arranged flush with the vehicle body 13.

In the glass plate 11 whose peripheral end is processed as shown in FIG. 5, the shape of the peripheral end 14 subjected to the edge processing is not limited to a semicircle, but may be a rectangle or any other shape. However, in order to ensure the strength of the glass plate, it is preferable that the angle 16 formed between the processed peripheral end portion 14 and the glass peripheral end portion adjacent to the peripheral end 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, for example, only the periphery of the edge portion.

In the above description, the glass window was mounted on the vehicle body by supporting the glass plate with moldings or bolts. However, the support member of 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 to the end 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 a U-shaped bracket 25 so as to reduce the impact transmitted to the glass plate 21. As shown in FIG. 7, such a glass plate with metal fittings is attached to a vehicle body (not shown) by, for example, bolts 25 attached to the side surfaces of the metal fittings 22.

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

The glass window for a vehicle of the present invention is suitably used as a glass window for an automobile, but is not limited thereto.
It can be applied to glass windows of various vehicles. Further, it is not always necessary to arrange a window surface in which the glass plates are flush with each other on the outside of the vehicle. For example, when the vehicle glass window of the present invention is used for a door glass window of a railway vehicle with the flash surfaced window surface as the inside of the vehicle, there is a danger that a passenger's finger touching the door may be caught in the door storage unit. Can be reduced.

Conventionally used materials can be applied to the various support members used for the glass window for a vehicle of the present invention. For example, for a molding, various soft synthetic resin materials can be used. A ceramic print can also be formed by printing a paste containing a pigment or the like applied to a glass plate for a vehicle by a silk screen, and heating and baking the glass plate. Processing of the periphery of the glass plate can also be performed by mechanical grinding using a cylindrical wheel, a coupling wheel, or the like. As the glass plate, a soda-lime glass plate colored as necessary is usually used.

It is preferable to use a tempered glass plate as the glass plate. The tempered glass sheet can be obtained by so-called wind-cooling tempering of a glass sheet whose peripheral edge has been subjected to predetermined processing. In this step, the glass sheet is often heated to a temperature at which the glass sheet can be formed, and is often bent and formed along a mold having a predetermined shape. For glass plates for vehicles,
This is because bent glass is often used for reasons of design and aerodynamic characteristics. The glass plate is usually heated to a temperature near the softening point of the glass to be used, for example, to a temperature between the strain point and the softening point of the glass. A cooling gas is blown onto the heated and bent glass sheet as required. By rapidly cooling after heating 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 exists on the surface layer of the tempered glass sheet. On the other hand, a tensile stress layer that balances with the compressive stress layer exists inside the tempered glass sheet. Therefore, as described above, when the surface of the glass plate is partially ground to form a thin portion, it is necessary to consider the influence of the local change in the thickness of the glass plate on the stress layer. .

Hereinafter, from such a viewpoint, a preferred range of the thickness of the tempered glass plate used for the vehicle glass window of the present invention will be described. FIG. 8 is a partial cross-sectional view of a glass plate whose end is thinned for use in the vehicle glass window of the present invention. As shown in FIG. 8, one main surface 33 of the glass sheet 1 is partially ground, and a step 3 is formed at an end of the glass sheet.
5 are formed, and the thin portion 31 is formed. In this thin portion, the glass plate having a thickness T is ground by a thickness τ and thinned to a thickness t.

FIG. 9 is a cross-sectional view of another embodiment of a tempered glass sheet for a vehicle in the vicinity of an end portion. 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 sheet having a thickness T is ground by thicknesses τ and τ ′ to obtain a thickness t.
Is formed.

In FIG. 8 and FIG. 9, the thickness T of the thick portion, the thickness t of the thin portion, and the grinding thickness τ and τ ′ 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)

In particular, the condition of the above equation (2) is important for maintaining the strength of the glass plate. When t / T ≦ 1/2, the strength of the strengthened glass sheet in the thin portion decreases. On the other hand, the condition of the above equation (3) defines the height of the step. As shown in the formula (3), in the tempered glass for a vehicle of the present invention, it is preferable that a step of 0.5 mm or more is formed, and this step is used for forming a flash surface of the glass window for the vehicle. Used for Further, as shown in the above formula (1), it is preferable that the tempered glass plate used for the glass window for a vehicle has a thickness in a range not to be excessively heavy while providing a necessary strength.

Actually, the following strength test was performed on a tempered glass plate. A glass sheet having an end as shown in FIG. 8 and reinforced by grinding so that the sheet thickness ratio t / T becomes a different value was produced by the method described above. Note that 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 performed on the thinned end portion of this glass plate, and the relationship between the plate thickness ratio t / T and the bending strength of the glass plate was investigated. FIG. 10 shows the ratio of the cracking load of each glass sheet to the cracking load when the end of the glass sheet having each thickness is not ground (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 equivalent to that of a tempered glass plate whose end portion was not processed was obtained (specifically). Specifically, the strength of 80% or more of the average strength when t / T = 1 was secured.)

The tempered glass sheet does not have a finer and sharper shape than a non-tempered glass sheet.
Such a form of destruction is an important characteristic of a tempered glass sheet from the viewpoint of ensuring the safety of the human body at the time of an accident. Therefore, a crushing test was performed on each glass plate produced in the same manner as described above. The crushing test was performed by the method described in JIS R3212. The results are summarized in Table 1.

[0036]

[Table 1]

Here, the evaluation criteria in Table 1 were as follows. In-plane (in the main surface where no step is formed): ○: Satisfies the standard defined in JIS. ×: Does not satisfy the criteria defined in the above JIS. Step: ○: There are no elongated fragments having a long side of 30 mm or more. Δ: Less than 10 elongated fragments having a long side of 30 mm or more are present. ×: Ten 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 ／, the fragments generated from the stepped portion became large,
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 that became a shard having a small possibility of causing a danger to the human body even when broken was obtained.

[0039]

As described above, according to the present invention,
At least a part of the peripheral edge has a step, and the support member is fitted into the step, and is arranged substantially flush with the glass plate, thereby forming a ceramic print despite being a flash surface. Also in the case where the aesthetic appearance is adjusted, it is possible to provide a vehicle glass window that can be manufactured efficiently because it is not necessary to print the paste so that the end portion coincides with the peripheral end portion of the glass plate.

[Brief description of the drawings]

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

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

FIG. 3 is a partial sectional view of still another embodiment of the glass window for a vehicle of the present invention.

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

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

FIG. 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 on which a fitting is mounted as a support member.

FIG. 8 is a partial cross-sectional view illustrating one embodiment of a glass plate.

FIG. 9 is a partial sectional view showing another embodiment of the glass plate.

FIG. 10 is a diagram illustrating a thickness ratio t at a step portion of a tempered glass sheet.
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 sectional view showing a conventional glass window for a vehicle.

[Explanation of symbols]

 1, 11, 21 Tempered glass plate for vehicles 2, 6 Mall 3, 13, Car body 5, 15 Ceramic print 9, 19, 31 Thin portion 12 Bolt 23, 24 Polishing portion 35, 36 Step

Claims (3)

[Claims] 1. A vehicle comprising: a glass plate; and a support member interposed between the glass plate and the vehicle body, wherein the glass plate has a step in at least a part of a peripheral region, and the support member is provided with the step A glass window for a vehicle, wherein the glass window is fitted into the glass plate and arranged substantially flush with the glass plate. 2. The glass window for a vehicle according to claim 1, wherein a ceramic print is formed in a peripheral area of the glass plate. 3. The method according to claim 2, wherein the glass plate is provided at the step portion.
The thickness difference between a thin part and a thick part is 0.5 mm or more, The thickness of the said thin part is a tempered glass plate larger than half of the thickness of the said thick part. Vehicle glass windows.