JP2007182383A - Method for manufacturing glass panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and economically eliminate the variation in the thickness of a glass panel to be finally formed. <P>SOLUTION: In a method for manufacturing a glass panel P wherein a plurality of sheets of plate glass 1 and 2 are integrally formed with a certain interval in the thickness direction, an uncured resin spacer 3 having a thickness wherein a crushing margin is added is applied over the entire periphery of one plate glass 1, then the other plate glass 2 is laminated on the resin spacer 3, then the laminated glass is molded by pinching from an outside of the plurality of the sheets of the plate glass 1 and 2 to be laminated toward the thickness direction so that the thickness T(mm) of the glass panel P to be finally formed and a set thickness T<SB>0</SB>(mm) satisfy a relation of ¾T<SB>0</SB>-T¾≤0.2(mm), then a secondary seal material 7 is injected and filled into the space between outer peripheral parts of the plurality of the sheets of the plate glass 1 and 2 from above the spacer 3, followed by curing. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a method for manufacturing a glass panel in which a plurality of plate glasses are integrally formed with a gap in the thickness direction.

  In this type of glass panel, various types of plate glass (for example, simple float plate glass, netted plate glass, heat-resistant tempered plate glass, etc.) can be used as the plate glass.・ 6mm) is difficult to form without any difference, and is formed with a thickness width of about 10%.

  Conventionally, as shown in FIG. 6, this type of glass panel is a cylindrical metal in which a plurality of (two are illustrated in FIG. 6) plate glasses 1 and 2 are hollowly formed over the entire circumference. By making a spacer 13 made of aluminum (made of aluminum, etc.), they are laminated with a certain distance in the thickness direction, and the outer peripheral portions of these plate glasses 1 and 2 are sealed with a sealing material 7, It is integrally formed so that a sealed space is formed between the plate glasses 1 and 2.

For this reason, in the conventional method described above, as shown in Table 1, as an example, the total thickness T of the finally formed glass panel (hereinafter simply abbreviated as total thickness, in Table 1, the numerical value of the total thickness) is In addition to the set value T ₀ (in Table 1, the example of the set value of 16 mm is not shown), it becomes very uneven and uneven. In the example shown in Table 1, the total thickness T is There is a maximum difference of 0.6 mm from the set value.

The background of the unevenness of the total thickness T will be described. According to the conventional method, as described above, a metal spacer 13 having a certain thickness is interposed between the glass plates 1 and 2 as illustrated in FIG. As a result, since a plurality of plate glasses are laminated with a certain interval, the deviation width of the thickness of the plate glass is reflected in the total thickness T as it is.
In this case, it is conceivable to adjust the distance between the glass plates by appropriately selecting the size of the metal spacer when molding the glass panel, but this is not practical for the following reasons. That is, as shown in Table 1, since the thickness of the plate glass is different in units of 0.1 mm, in this case, it is necessary to prepare the metal spacers having different thicknesses in units of 0.1 mm in advance. In practice, however, it is the limit to prepare ones having different sizes in units of 0.5 mm, and if various spacers are prepared in this way, the cost increases.

  As described above, in the conventional glass panel, since the total thickness T is very varied, it is difficult to mount the sash frame when the total thickness T is larger than the set value, and the total thickness is smaller than the set value. There are problems such as the glass panel falling or rattling in the sash frame.

  The present invention has been made in view of the above circumstances, and an object thereof is to make the total thickness T of the finally formed glass panel simple and economical without variations.

[Configuration] In order to achieve this object, the characteristic configuration of the present invention is a glass in which a plurality of sheet glasses 1 and 2 are integrally formed at intervals in the thickness direction as illustrated in FIGS. It is a manufacturing method of the panel P, Comprising: The uncured resin spacer 3 of the thickness which added the crushing margin to one plate glass 1 was apply | coated over the perimeter, and the other plate glass 2 was laminated | stacked on the resin spacer 3 Thereafter, the glass panel P finally formed is laminated so that the thickness T (mm) satisfies the relationship of the set thickness T ₀ (mm) and | T ₀ -T | ≦ 0.2 (mm). After pressing and molding in the thickness direction from the outside of the plurality of sheet glasses 1 and 2, the secondary sealing material 7 is injected and filled from above the resin spacer 3 between the outer periphery of the plurality of sheet glasses 1 and 2 and cured. It is in a place to be molded integrally.

[Effect] According to the characteristic configuration of the present invention, first, in advance, an uncured resin spacer is injected by appropriate extrusion over the entire periphery of the peripheral surface of the plate surface of each plate glass, and through the uncured resin spacer, A plurality of plate glasses are integrally laminated with a gap in the thickness direction. And in adjusting the distance in the thickness direction between the plurality of sheet glasses in the finally formed glass panel, for example, by a sheet glass holder or the like, from the outside of the stacked sheet glass in the thickness direction. After squeezing the glass panel P, the thickness T (mm) of the glass panel P can be easily set by removing the flat glass holder and injecting, filling, and curing the secondary sealing material with the glass panel standing upright. The glass panel can be manufactured so as to satisfy the relationship of the thickness T ₀ (mm) and | T ₀ -T | ≦ 0.2 (mm). In addition, it is not necessary to mold the spacers in various sizes in advance, and it is economical because an appropriate amount of uncured resin spacers may be injected by extrusion molding.
Therefore, the glass panel can be manufactured easily and economically as described above so that the total thickness does not vary. For this reason, the various problems accompanying the non-uniform thickness of the glass panel as described above are solved.

  In addition, as mentioned above, although the code | symbol was written in order to make contrast with drawing convenient, this invention is not limited to the structure of an accompanying drawing by this entry.

  Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show an embodiment of a glass panel manufacturing method and a glass panel according to the present invention. In the drawings, the parts indicated by the same reference numerals as those in the conventional example indicate the same or corresponding parts.

As shown in FIGS. 1-3, in this embodiment, the glass panel P has two sheet glasses 1 and 2 spaced apart in the thickness direction via uncured resin spacers 3 that are extruded and injected over the entire circumference. The laminated glass sheets 1 and 2 are laminated together in a state where they are placed, and until the resin spacer 3 is completely cured, the laminated glass sheets 1 and 2 are pressed in the thickness direction from the outside, and the finally formed thickness T is Then, molding is performed so as to satisfy the relationship of the set thickness T ₀ and | T ₀ −T | ≦ 0.2 (mm). Details will be described below.

  First, the plate glasses 1 and 2 used for manufacturing the glass panel P are washed in advance and dried.

Next, as shown in FIG. 1, one plate glass 1 (2) of the plate glasses 1 and 2 is extruded over the entire outer periphery of the plate surface on the side facing the other plate glass 2 (1). An uncured resin spacer 3 is applied.
The resin spacer 3 is made of a thermoplastic resin material. For example, the resin spacer 3 heated and melted is applied by an extrusion molding machine 5 configured to discharge from a nozzle (die) 4 in a square shape. do it. That is, as shown in FIG. 1 (a), the extrusion molding machine 5 causes the uncured resin spacer 3 to be pressure-bonded to the plate surface of the plate glass 1 while directly ejecting it, and the nozzle head 6 is moved to move the plate of the plate glass 1. An uncured resin spacer 3 is applied over the entire outer periphery of the surface. Since the resin spacer 3 is heated to a high temperature, it adheres well to the plate surface of the plate glass 1. Further, in applying the resin spacer 3 to the entire outer periphery of the plate surface of the plate glass 1, the plate glass 1 may be moved instead of the nozzle head 6, and both the nozzle head 6 and the plate glass 1 are moved. May be.

  At this time, when the uncured resin spacer 3 is applied, the distance in the thickness direction between the plate glasses 1 and 2 arranged side by side in the finally formed glass panel P is set to the thickness of each of the plate glasses 1 and 2. The coating width t in the thickness direction of the glass sheet 1 is controlled to be applied so as to be able to be adjusted in accordance with the above. That is, by adjusting the contact state and interval between the plate surface of the plate glass 1 and the nozzle 4, the discharge pressure from the nozzle 4 of the uncured resin spacer 3, the speed at which the nozzle head 6 or the plate glass 1 is moved, and the like. The resin spacer 3 is applied while controlling t in units of 0.1 mm.

Incidentally, in the present embodiment, since the total thickness of the glass panel P is finally clamped and set as the set value T ₀ as will be described later, the adjustment is obtained from the set value T ₀ and the thicknesses of the plate glasses 1 and 2. The coating width t is a thickness obtained by adding about 2 mm as a crushing distance to the interval t ₀ mm between the power glass sheets 1 and 2.

Next, the other plate glass 2 (1) is laminated on the resin spacer 3 applied to the plate glass 1, and the two plate glasses 1 and 2 are extruded and injected over the entire circumference between the outer peripheral portions. It is set as the state laminated | stacked integrally in the state which left the space | interval in the thickness direction via the resin spacer 3 of this. Then, as shown in FIGS. 2 (a) and 2 (b), until the resin spacer 3 is completely cured, the laminated glass sheets 1 and 2 are pressed from the outside in the thickness direction to the glass panel P. Molding is performed so that the thickness becomes the set value T ₀ . Note that such clamping pressure operation, as the thickness of the glass panel P is entirely uniformly set value T ₀ as expected, it may be performed by employing an appropriate known method.
Thereafter, as shown in FIG. 2 (b), a secondary sealing material made of a thermosetting resin, a thermoplastic resin, or the like is injected and filled between the outer peripheral portions of the glass sheets 1 and 2 from above the resin spacer 3 and cured.

As described above, when the glass panel P was produced from the various plate glasses 1 and 2, as shown in Table 2, the interval t ₀ between the plate glasses 1 and 2 was adjusted corresponding to the thickness of each of the plate glasses 1 and 2. The finally formed glass panel P was able to be manufactured so that the total thickness T thereof was substantially the same as the set value T ₀ (16 mm in Table 2).

  Thus, according to the glass panel manufacturing method and glass panel according to the present invention, the interval between a plurality of glass plates arranged side by side can be adjusted and changed easily and economically, and the total thickness of the glass panel can be adjusted. The variation can be reduced. Therefore, when mounted on the sash frame, for example, as shown in FIG. 3 (a), the glazing channel G, which is a fixed material composed of a soft elastic member having a U-shaped cross section, or shown in FIG. 3 (b). In this way, it is possible to maintain a good fitting degree when fitting the attachment member H, which is a fixed material composed of a metal member having a U-shaped cross section, thus preventing rattling when it is attached to the sash frame. The various problems associated with the non-uniform thickness of the glass panel can be solved at once.

Further, conventionally, assuming that the total thickness of the glass panel becomes non-uniform, each of the glazing channel G and the attachment member H for attachment has a total thickness with respect to the glass panel having a total thickness of one set value. It was necessary to design a complicated shape that allowed for variations in thickness, and there were many mounting problems resulting from this.
However, according to the present invention, as illustrated in Table 2, the glass panel can be manufactured so that the total thickness is as set, so that it is not necessary to design a complicated shape, and no mounting trouble occurs.

[Another embodiment]
Other embodiments will be described below.
<1> When two sheets of glass 1 and 2 are integrally laminated with an uncured resin spacer 3 with a space in the thickness direction, as shown in FIG. The glass plates 1 and 2 may be arranged side by side and the uncured resin spacer 3 may be filled between the outer peripheral portions of the glass plates 1 and 2 by extrusion molding. In the same manner as in the first embodiment, the laminated glass sheets 1 and 2 are sandwiched in the thickness direction from the outside so that the thickness T of the glass panel P becomes the set thickness T ₀ and | T ₀ -T | ≦ 0. What is necessary is just to shape | mold so that the relationship of 2 (mm) may be satisfy | filled. The other points are the same as in the above embodiment.

<2> The method for producing a glass panel according to the present invention is not limited to the form exemplified in the previous embodiment, and may be the following form. For example, as shown in FIG. 5, first, the two glass sheets 1 and 2 are moved in the thickness direction by the glass sheet holder 8 so that the thickness of the finally formed glass panel P becomes the set value T _0. The interval is adjusted and held in order. And after inject | pouring the uncured resin spacer 3 by extrusion molding between the outer peripheral parts of the plate glass 1 and 2 arranged in parallel, if it shape | molds integrally by hardening of the resin spacer, the glass panel P will be the It can be manufactured such that the total thickness T satisfies the relationship of the set thickness T ₀ and | T ₀ -T | ≦ 0.2 (mm). The other points are the same as in the previous embodiment.

<3> In the above embodiment, the glass plate used for the glass panel is not only a polished glass plate and a float glass, but also a glass plate, a ground glass (a glass imparted with a function of diffusing light by surface treatment), a glass with a mesh. Alternatively, tempered glass, plate glass provided with functions such as heat ray absorption, ultraviolet ray absorption, heat ray reflection, and low radiation, or a combination thereof may be used. The glass composition may be soda silicate glass (soda lime silica glass), borosilicate glass, aluminosilicate glass, or various crystallized glasses.
In the present invention, the glass panel is not limited to the two illustrated glass plates, but may be composed of three or more glass plates.
In the present invention, the glass panel has a dry air or a dry gas (heated more than dry air such as argon gas, krypton gas, sulfur hexafluoride gas, etc.) in a sealed space between the glass plates sealed by the resin spacer. Of course, it is possible to improve the heat insulation and soundproofing properties by appropriately blowing a gas having low conductivity, and it is also possible to keep the sealed space in a reduced pressure state.

<4> In the present invention, the resin spacer may be formed by appropriately selecting from various thermoplastic resin materials. However, in the case where dry air or the like is sealed in the sealed space as described above, the adhesion to the plate glass is low. It is preferable to appropriately select from those not only good but also hygroscopic. Such a resin spacer may be a combination of a plurality of thermoplastic resin materials, and may contain a desiccant or a non-flammable agent.
The resin spacer is not limited to a single layer as exemplified in the previous embodiment, and may be formed in multiple layers from the central part of the glass sheet toward the peripheral part. In this case, for example, an extruder If a plurality of resin spacers are extruded and laminated simultaneously in parallel from the nozzle tip of the nozzle, the ones laminated and integrated in the nozzle head are extruded and laminated, or extruded and laminated one by one Good.
Note that the secondary seal exemplified in the previous embodiment is not necessarily provided, and may be provided as appropriate according to the sealed state or the dried state of the sealed space.

Explanatory drawing which shows one Embodiment of the manufacturing method of the glass panel which concerns on this invention Explanatory drawing which shows one Embodiment of the manufacturing method of the glass panel which concerns on this invention Explanatory drawing which shows an example of the attachment form to the sash frame of a glass panel Explanatory drawing which shows another embodiment of the manufacturing method of the glass panel which concerns on this invention. Explanatory drawing which shows another embodiment of the manufacturing method of the glass panel which concerns on this invention. Explanatory drawing about the manufacturing method of the conventional glass panel

Explanation of symbols

P glass panel 1 plate glass 2 plate glass 3 resin spacer

Claims (1)

A method for producing a glass panel in which a plurality of plate glasses are integrally formed with an interval in the thickness direction,
An uncured resin spacer having a thickness to which crushing allowance is added to one plate glass is applied over the entire circumference, and another plate glass is laminated on the resin spacer. (Mm) from the outside of the plurality of laminated sheet glasses in the thickness direction so that the relationship of set thickness T ₀ (mm) and | T ₀ -T | ≦ 0.2 (mm) is satisfied. A method for manufacturing a glass panel, in which a secondary sealing material is injected and filled from above the resin spacers between the outer peripheral portions of the plurality of sheet glasses and then integrally molded after being pressed and molded.

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