JPH10292742A - Resin spacer for double glazing and double glazing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the deflection of resin spacers without using a reinforcing material such as glass fiber, and to prevent the deterioration of the appearance and quality of double glazing by forming reinforcing ribs projected in the external direction from the external surface sections of the hollow long-sized body-shaped resin spacers interposed and arranged to the peripheral sections of a plurality of glass plates. SOLUTION: The resin spacer 2 is disposed along the peripheries of glass plates 1, 1 constituting the double glazing, and the glass plates 1 and the resin spacer 2 are fast stuck in an airtight manner by primary and secondary sealing materials 4, 5. The whole resin spacer 2 is formed of an AES resin at that time, and formed in a long-sized body having hollow structure formed of an internal surface section exposed into the space layer of the double glazing, an external surface section bonded by the secondary sealing material 5 and side face sections tying these internal and external surface sections, and a reinforcing rib 3 is projected and formed in the external direction in the central longitudinal direction of the external surface section. A desiccant 6 is introduced into the hollow section of the spacer 2 as required, and vent holes 7 for communicating a hollow section, into which the desiccant is introduced, with the space layer of the double glazing are formed to the internal surface section at proper intervals.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double glazing used for buildings, automobiles and industrial equipment, and more particularly to a resin spacer for the double glazing.

[0002]

2. Description of the Related Art Conventionally, a resin spacer is known as one of spacers for a double-layer glass. Since this spacer is inexpensive, easily formed, and has an excellent heat insulating effect, it has been proposed to use it instead of a metal spacer. This resin spacer is also formed in a hollow elongated body like a normal metal spacer, and is exposed to an intermediate layer surrounded by these glass plates in a state where the resin spacer is arranged at a peripheral portion of a glass plate constituting a double-layer glass. It has an inner surface, an outer surface adhered with a sealing agent, and a side surface that connects these two surfaces to form a portion facing the glass plate.

However, since this resin spacer is made of resin and has a small cross section, in general, bending occurs due to its own weight or an external force when assembling a double-layer glass, and bending or twisting occurs in assembling accuracy. Problems may occur in appearance and performance.

As a method for solving this problem, it has been proposed to knead a reinforcing material such as glass fiber when forming the resin spacer, or to provide a reinforcing member in a hollow portion between the inner surface portion and the outer surface portion of the spacer. Have been.

[0005] In the former case, not only the material cost is increased due to the kneading of the glass fiber, but also the moldability is deteriorated as compared with the case where only the resin is used, and the mold is worn at the time of spacer molding, so that the life of the mold is shortened. Increase production costs. In addition, although the latter has the effect of reinforcing the entire spacer and the effect of reducing the above-described bending and torsion, the height of the bending direction is particularly limited by the width of the side surface of the spacer, particularly for bending which deteriorates workability. Since the desired height cannot be obtained, a sufficient bending prevention effect cannot be obtained, and bending still occurs during assembly work and transport handling.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to further reduce or suppress the bending generated in the resin spacer due to the flexibility of the resin, and to improve the sectional shape thereof. Accordingly, it is an object to easily obtain an inexpensive resin spacer with small deflection without using a reinforcing material such as glass fiber and simply changing the cross-sectional shape of a mold of a conventional spacer forming apparatus.

[0007]

According to the present invention, there is provided a resin spacer interposed at a peripheral portion of a plurality of glass plates and separating the plurality of glass plates so as to form an intermediate layer. An inner surface exposed to the intermediate layer, an outer surface bonded to the outside with a sealing material, and a side surface facing the glass plate are formed in a hollow elongated body, and the outer surface is formed in an outer direction in a longitudinal direction of the outer surface. Provided are a resin spacer for a double glazing characterized by having a protruding reinforcing rib, and a double glazing using the spacer.

That is, a feature of the present invention is to provide a reinforcing rib projecting outward on the outer surface of the resin spacer, thereby reducing or suppressing the bending of the resin spacer particularly in the direction of the reinforcing rib.

Further, another feature of the present invention is that a reinforcing core is provided by fixing both ends to an inner surface portion and an outer surface portion in a hollow portion of the resin spacer having reinforcing ribs planted on the outer surface portion. An object of the present invention is to provide a resin spacer for a double glazing.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The resin spacer of the present invention is a long body having a hollow structure surrounded by an inner surface, an outer surface and a side surface as described above, and is used after being cut into an appropriate length. . And like many spacers for double glazing, a desiccant is usually put in this hollow part to absorb moisture penetrating into the inside of the double glazing to extend the life of the double glazing. For this purpose, ventilation holes are provided in the inner surface of the spacer in a slit shape or in a dotted shape at a predetermined interval, and are formed between the hollow portion containing the desiccant and the glass plate constituting the double glazing. It communicates with the intermediate layer.

As a material of the spacer, for example, AES
Resin (acrylonitrile EPT rubber styrene), synthetic resin such as polyvinyl chloride can be used,
Among them, AES resin is preferred in terms of physical properties and moldability. Further, as this resin material, a material having high moisture permeability resistance is suitable in order to prevent moisture permeability from the outside. If there is a problem with this material in terms of moisture permeability, it is advisable to bury another moisture-impermeable member at least in the resin on the outer surface of the spacer, as is already known as a measure against moisture permeability.

In the present invention, one or more reinforcing ribs are provided on the outer surface of the resin spacer in the longitudinal direction. When only one reinforcing rib is provided, it is provided along the longitudinal direction at the center of the outer surface of the outer surface, and when a plurality of reinforcing ribs are provided, the reinforcing ribs are similarly provided at predetermined intervals.

The height and thickness of the reinforcing rib are not specified, but the height is not more than the thickness of the sealing material layer applied to the outer surface of the spacer. Naturally, the greater the height of the reinforcing rib, the greater the effect of preventing the spacer from bending.

[0014]

Next, an embodiment of the present invention will be specifically described with reference to the drawings. FIG. 1 is a partial cross-sectional view of the resin spacer according to the present invention in use. In the drawing, reference numeral 1 denotes a glass plate constituting a double-glazed glass, and 2 denotes a resin spacer arranged along the periphery of the glass plate. These glass plate 1 and the resin spacer 2 are separated by the resin spacer 2. In this state, the first sealing material 4 and the second sealing material 5 tightly adhere to each other. Reference numeral 6 denotes a desiccant charged in the hollow portion of the resin spacer.

FIG. 2 is a partial perspective view showing a cross section of the resin spacer 2. As shown in the figure, the resin spacer 2 has a hollow structure formed by an inner surface portion 8 exposed in the space layer of the double-glazed glass, an outer surface portion 9 bonded by the secondary sealing material 5, and a side surface portion 10 connecting these. The outer surface 9
A reinforcing rib 3 is provided to protrude outward in the central longitudinal direction.

The spacer 2 is entirely made of, for example, AES
It is made of resin and can be easily obtained by using a mold having such a cross-sectional shape. The desiccant 6 can be put in the hollow part of the spacer as needed, and the inner surface part 8 has a ventilation hole 7 for communicating the hollow part containing the desiccant with the space layer of the double glazing. They are provided at appropriate intervals.

In this embodiment, the side portion 10 of the spacer is used.
Is convexly curved toward the hollow portion for the sake of easy carrying of the primary sealing material, but may have a planar shape.

FIGS. 3 and 4 show another embodiment of the resin spacer of the present invention. FIG. 3 shows a configuration in which three reinforcing ribs 3 are provided at predetermined intervals on the outer surface of the spacer. Such an increase in the reinforcing ribs helps to further reduce the deflection of the resin spacer. In particular, this is convenient when the height of the reinforcing rib cannot be made large in designing a double-glazed glass or spacer.

FIG. 4 shows the reinforcing core 11 in the hollow portion of the spacer.
This is an example in which both ends are fixed to the inner surface portion 8 and the outer surface portion 9. Although this reinforcing core 11 can reinforce the hollow structure of the resin spacer and reduce the bending and torsion of the spacer by itself, the reinforcing core 11 works together with the reinforcing rib 3 to more effectively prevent the bending of the reinforcing rib 3. Enhance further. And
To ensure and stabilize this effect, the reinforcing core 11 is desirably provided in the middle of the hollow portion of the spacer 2 as shown in the figure. The reinforcing core 11 is provided on the outer surface 9 of the spacer 2.
This is because the reinforcing ribs 3 are integrated with the reinforcing ribs 3 erected at the center and function as one reinforcing rib.

Further, in the embodiment, the description has been made of the double-glazing unit composed of two glass plates. However, the present invention can be applied to a multilayer double-layer glass plate formed by combining three or more glass plates.

[0021]

According to the resin spacer of the present invention, since the reinforcing ribs are provided on the outer surface of the resin spacer so as to protrude outward, the bending of the resin spacer in the direction of the reinforcing ribs can be reduced. Not only can the workability at the time of assembling be greatly improved, but also the deterioration of the appearance and quality of the double-glazed glass due to the bending deformation of the spacer can be prevented. In particular, when a reinforcing core is provided in the hollow portion of the spacer in combination with such a reinforcing rib, the spacer is structurally reinforced, so that bending and twisting can be further reduced.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view of a double glazing using a resin spacer according to the present invention.

FIG. 2 is a partial perspective view with a cross section of the resin spacer of FIG. 1;

FIG. 3 is a sectional view of a resin spacer showing another embodiment of the present invention.

FIG. 4 is a cross-sectional view of a resin spacer showing another embodiment of the present invention.

[Explanation of symbols]

 1: glass plate 2: resin spacer 3: reinforcing ribs 5: secondary sealing material 6: desiccant 8: inner surface 9: outer surface 10: side surface

Claims (3)

[Claims] Claims: 1. A plurality of glass plates are interposed and arranged at the peripheral portion,
A resin spacer for separating a plurality of glass plates so as to form an intermediate layer, the spacer being in contact with an inner surface exposed to the intermediate layer, an outer surface bonded to the outside with a sealing material, and a glass plate. A resin spacer for a double glazing, wherein the resin spacer has a reinforcing rib formed in a hollow elongated body by a side portion to be formed and protruding outward in a longitudinal direction of the outer surface portion. 2. The resin spacer for double glazing according to claim 2, wherein a reinforcing core is fixed to both ends of the inner and outer surfaces of the hollow elongated body. 3. A double glazing using the resin spacer according to claim 1.