JPH10292743A - Spacer for double glazing and double glazing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the deflection and torsion of a spacer, and to prevent the deterioration of the appearance and quality of double glazing by incorporating a reinforcing core material made of a metal having large strength and rigidity into the hollow section of the spacer body section of a hollow long-sized body made of a resin. SOLUTION: In the main body section 3 of the spacer 2, an AES resin is molded in a hollow shape, and grooves for inserting the end sections of a reinforcing core material 4 are formed to the internal surfaces of an internal surface section 3a exposed into a space layer between the glass plates 1, 1 of the double glazing and an external surface section 3b, in which the outside is bonded with the glass plates 1 by a secondary sealing material 6. On the other hand, the reinforcing core material 4 made of steel consists of a bottom plate 4 and a rib section 4b at the center of the bottom plate 4a, and the reinforcing core material 4 is assembled into the hollow section 5 of the main body section 2 by inserting these bottom plate 4a and rib section 4b into the grooves formed into the hollow section 5 of the main body section 3. Accordingly, the bottom plate 4a is fast stuck onto the external surface section 3b of the main body section 2 and the end section of the rib section 4b is retained to the internal surface section 3a and the main body section 3 is reinforced in the reinforcing core material 4, and the deflection and torsion of the spacer 2 are reduced.

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, industrial equipment and the like.

[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,
An inner surface exposed to a space layer surrounded by these glass plates, an outer surface bonded with a sealing agent, and a side surface facing the glass plate in a state of being disposed at a peripheral portion of a glass plate constituting the double-glazed glass. And

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-glazed glass, and bending or twisting occurs in assembling accuracy. Problems may occur in appearance and performance.

[0004] As a method for solving the above-mentioned bending or twisting, when forming a resin spacer, a reinforcing material such as glass fiber is kneaded or a reinforcing member is provided in a hollow portion between the inner surface portion and the outer surface portion of the spacer. It has been proposed. In the former case, the kneading of the glass fibers not only increases the material cost, but also deteriorates the moldability compared to the case of using only the resin, and wears the mold during spacer molding. Make it higher.

[0005] The latter has the effect of reinforcing the entire spacer and the effect of reducing the above-mentioned bending and twisting. However, particularly for the bending which makes workability worse, the height of the spacer in the bending direction is increased. Since the desired height cannot be obtained due to the limitation of the width of the side portion, the effect of preventing the bending cannot be sufficiently obtained, and the bending still occurs at the time of assembling work and carrying and handling.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to further reduce or eliminate the bending and torsion generated in a resin spacer due to the flexibility of a resin, and to further prevent moisture permeation by using the resin spacer. Another object of the present invention is to obtain a spacer for a double glazing which can be obtained at the same time.

[0007]

SUMMARY OF THE INVENTION The present invention provides a resin main body formed in a hollow elongated body having a hollow portion therein, and a metal reinforcing core material incorporated in the hollow portion of the main body. The main body portion is formed by an inner surface portion exposed to a space layer surrounded by a glass plate, an outer surface portion bonded with a sealing material, and a side surface portion facing the glass plate and separating the glass plate. The reinforcing core is composed of a bottom plate and a rib planted on the bottom plate, and when incorporated in the main body, the bottom plate is in close contact with the outer surface of the main body. Provided is a spacer for a double glazing characterized by being engaged with an inner surface portion, and a double glazing using the spacer.

[0008] That is, the feature of the present invention is that the main body of the spacer is a long hollow body made of resin, and a reinforcing core material of a specific shape made of metal having high strength and rigidity is incorporated in the hollow portion of the main body. By doing so, it is possible to reduce deflection and twist, which are disadvantages of the resin spacer.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The spacer for double glazing according to the present invention comprises a resin main body and a metal reinforcing core incorporated in the main body as described above, and is usually formed as a long body. Have been. When used, this long body is cut into an appropriate length, and its ends are connected to complete a spacer. Then, the spacer is placed between two glass plates and assembled into a double-layer glass. In this case, like many spacers for double glazing, a desiccant is put inside the spacer to absorb moisture that enters the inside of the double glazing through the ventilation holes provided on the inner surface of the spacer, and the longevity of the double glazing is maintained. It is trying to make it.

[0010] The main body has a hollow portion surrounded by an inner surface portion exposed to the space layer of the double-glazed glass, an outer surface portion bonded with a sealing material, and a side surface portion facing the glass plate and separating the glass plate. It is formed in a long body. As this material, for example, synthetic resins such as AES resin (acrylonitrile EPT rubber styrene) and polyvinyl chloride are suitable.
Among them, AES resin is preferable in terms of physical properties, moldability, material cost, and the like.

When the main body is formed, if a groove for inserting a reinforcing core material is previously formed in the inner surface and the outer surface of the hollow interior, the work of assembling the reinforcing core is facilitated. However, if the dimensions of the reinforcing core material are matched to the size of the hollow portion of the main body, the formation of such a groove is not always necessary.

On the other hand, the metal reinforcing core comprises a ribbon-shaped bottom plate and a rib portion which is erected substantially perpendicularly to the bottom plate continuously in the longitudinal direction of the bottom plate. With this structure, the reinforcing core material can reduce the bending in both the vertical and horizontal directions, and can also suppress the torsion. Usually, it is sufficient to provide one rib portion at the center of the bottom plate with respect to the bottom plate, but if necessary, two or more rib portions may be provided in parallel at a predetermined interval.

As a material for the reinforcing core material, a metal material having higher rigidity than a resin such as stainless steel, steel, or aluminum is used. In particular, since stainless steel and steel have a lower thermal conductivity than aluminum, when incorporated in a resin body, the low thermal conductivity of the body can be almost maintained without any loss, which is preferable.

[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 a double glazing according to the present invention. In the drawing, reference numeral 1 denotes a glass plate constituting a double-layer glass, and 2 denotes a spacer arranged along the periphery of the glass plate. The glass plate 1 and the spacer 2 are separated from each other by the spacer 2. , And is sealed confidentially by the primary sealing material 7 and the secondary sealing material 6. Although not shown, a desiccant is charged inside the hollow elongated spacer. Reference numeral 11 denotes a ventilation hole for communicating between the interior of the spacer containing the desiccant and the space layer of the multilayer glass. is there.

As shown in the figure, the spacer 2 is made of, for example, A
It is composed of a main body 3 formed into a hollow shape from ES resin and a steel reinforcing core 4 incorporated in a hollow portion 5 of the main body. The main body 3 is an elongated body having a hollow structure formed by an inner surface 3a exposed to the space layer of the double-glazed glass, an outer surface 3b bonded to the outside by a secondary sealing material 6, and a side surface 3c connecting these. It is. A groove for incorporating the reinforcing core 4 is formed on the inner surface of the inner surface 3a and the inner surface of the outer surface 3b of the main body 3. The shape of the groove is not specified, but a groove into which the end of the reinforcing core can be inserted is convenient.

In this embodiment, the side 3c of the main body 3 is
For ease of carrying the primary sealing material, it is convexly curved toward the hollow portion 5 for convenience, but may be planar.

On the other hand, the reinforcing core 4 comprises a bottom plate 4a and a rib portion 4b provided at the center of the bottom plate. Here, the width of the bottom plate 4a and the height of the rib portion 4b are
The width of the outer surface 3b of the main body 3 and the hollow 5
(The distance between the outer surface portion 3b and the inner surface portion 3a). By inserting the bottom plate 4a and the ribs 4b into the grooves provided in the hollow portion of the main body 3, the reinforcing core 4 is incorporated into the hollow portion 5 of the main body, and the spacer is completed.

The reinforcing core 4 incorporated in the main body is laminated with the bottom plate 4a in close contact with the outer surface of the main body 2 and the ends of the ribs 4b are locked on the inner surface. Reinforce. Since the reinforcing core member 4 is made of steel and has high rigidity, bending and twisting of the spacer 2 are reduced.

Further, in FIG. 1, the bottom plate 4 of the reinforcing core 4 is provided.
If at least both end portions of a are bonded to the outer surface portion 3b of the main body portion 3, the reinforcing structure is further strengthened, and the moisture permeability of the outer surface portion 3b of the main body portion is more completely reduced by the moisture permeation preventing effect of the bottom plate. Can be prevented.

FIG. 2 shows an example in which such a spacer 2 is cut, and its ends are connected by a connector 8 for use. The connector 8 is provided with a tenon 9 which is inserted into the hollow part 5 of the spacer 2 at right angles.
A cut groove 10 is formed at the front end of the reinforcing member. The cut groove 10 is fitted to the rib portion 4b of the reinforcing core material incorporated in the main body portion 3 of the spacer 2 to connect the corner portions. Note that 12
Are recesses or holes into which projections (not shown) provided inside the tenon 10 of the tenon 9 can be securely engaged with the spacer 2 and the connector 8. It is preferable to provide a projection.

The use of a metal as the reinforcing core material is particularly effective in the corner connection of the spacer as shown in FIG. That is, for example, when the reinforcing core material is made of resin, the rib portion fitted into the cut groove 10 of the connector 8 is thin and easily broken. Therefore, in consideration of the corner connection structure of the spacer, the reinforcing core is made of metal in the present invention.

[0022]

The spacer according to the present invention is formed by combining a resin main body with a rigid metal reinforcing core, and forming this reinforcing core on a bottom plate with ribs planted at right angles. Since this bottom plate is closely attached to the outer surface of the main body and is incorporated in the hollow portion, it is possible to reduce bending and twisting of the spacer in both the vertical and horizontal directions. Thereby, not only can the workability at the time of assembling the multi-layer glass be greatly improved, but also the deterioration of the appearance and quality of the multi-layer glass caused by the bending deformation of the spacer can be prevented.

[Brief description of the drawings]

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

FIG. 2 is an exploded perspective view of an example of a corner connecting portion of the spacer according to the present invention.

[Explanation of symbols]

 1: glass plate 2: spacer 3: main body 4: reinforcing core material 5: hollow portion 6: secondary sealing material 7: primary sealing material

Claims (2)

[Claims] 1. A resin main body portion formed in a hollow elongated body having a hollow portion therein, and a metal reinforcing core material incorporated in the hollow portion of the main body portion, wherein the main body portion is An inner surface exposed to a space layer surrounded by a glass plate, an outer surface bonded with a sealing material, and a side surface that faces the glass plate and separates the glass plate; Is composed of a bottom plate and a rib planted on the bottom plate. In a state where the bottom plate is incorporated in the main body, the bottom plate is in close contact with the outer surface of the main body, and the end of the rib is engaged with the inner surface. A spacer for a double glazing, characterized in that: 2. A double glazing using the spacer according to claim 1.