JP2591065Y2 - Spacer structure for double glazing - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spacer structure for a double glazing, and more particularly, to increase the thickness of the spacer to facilitate extrusion and to simplify the work of arranging ventilation holes. The present invention also relates to a spacer structure for a double glazing which can be achieved at the same time.

[0002]

2. Description of the Related Art A double glazing formed by separating two or more sheet glass materials through a spacer containing a moisture absorbent and sealing the four sides thereof has a heat insulating property, a soundproof property and a dewproofing property. In addition to its excellent performance, it also has additional functions such as solar shading and safety, so it is well suited to today's needs where energy saving and safety are important, and is only for business use. On the other hand, large demand is expected for general household use.

FIGS. 4A and 4B are explanatory views illustrating the conventional structure of the above-mentioned double glazing. The two glazings 2 form an air space 3 between them. And a primary sealing agent 7 between the spacer 4 and each of the glass sheets 2.
However, the gaps 9 defined by the peripheral edges 2a, 2a of the spaced plate glasses 2, 2 and the spacers 4 are filled with the secondary sealing agent 8, respectively, and the hollow portions 5 of the spacers 4 are filled in the gaps 9. The desiccant 25 is stored, and the double-glazed glass 1 is formed.

[0004] Further, the spacer 4 used in this case is formed by extrusion molding as shown in (a), and then has a large number of through holes for communicating the hollow portion 5 with the air layer 3 side. In addition to the one of the one-piece type having the hole 4a, a ventilation groove 4b is provided at a position located on the side of the air layer 3 when the plate material is formed by roll forming as shown in (b). The hollow part 5 is communicated with the air layer 3 by welding, but not shown, but the opposite butted end faces are welded to each other after roll forming, and the through hole in (a) is formed on the plate surface located on the opposite side of the welded portion. An integrated structure type having a through hole similar to 4a is mainly used.

[0005]

By the way, even if the spacer 4 of the above-mentioned integral structure type shown in (a) or (b) of FIG. 4 is used, the two glass sheets 2, 2 are spaced from each other. It is possible to form a double glazing 1 having a dry air layer 3.

However, in the case of the spacer 4 shown in FIG. 4A, since it is of an integral structure type formed by extrusion, the molding is difficult and the product yield is low. Since the thickness of the extruder 4a must be reduced to form a thin extruder, a special extruder having a small size and a small discharge amount must be used. However, there is a disadvantage that the operation of forming the through hole 4a is complicated and inefficient.

In the case of the spacer 4 shown in FIG. 4B, although the molding difficulty is lower than in the case of FIG.
A large amount of equipment investment is required for a mold and welding equipment used for roll forming, and as in the case of (a), there is a disadvantage that the product cost is increased as a result.

[0008]

This invention SUMMARY OF THE INVENTION has been made in view of the above problems found in the prior art, multi-layered glass to be interposed to form an air layer and spaced a glazing mutual Spacer for at least has a surrounding portion and a space formed by the surrounding portion and containing a desiccant,
The surrounding portion has a cross section that is thickened , and a through hole is provided on at least one end side in a length direction located on a contact surface with the air layer, and the through hole is provided. That
The caliber is larger than the particle size of the desiccant, and the space
Filled with air-permeable cushioning material at positions corresponding to through holes
Spacer for double glazing characterized by being made
Provide structure .

[0009]

For this reason, since the spacer itself is formed relatively thicker than before, the general-purpose type extruder can be used without using a dedicated extruder that is small and has a small discharge amount. It can be integrally formed. In addition, the through holes provided in the spacer and located at the contact surface with the air layer formed in the multi-layer glass are formed so that the diameter thereof is larger than the particle size of the desiccant. Therefore , the number can be reduced and the work of arranging the through holes can be simplified.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

[0011] Double glass 3 formed by applying the present invention
As shown in FIG. 2, reference numeral 1 denotes two sheet glasses 32, 3
2 are spaced from one another by spacers 11 arranged to form an air space 33 between the spacers 11 and the respective glass sheets 32.
4 is a peripheral portion 32a of the spaced plate glasses 32, 32,
Void portion 3 defined by 32a and spacer 11
5 is filled with a secondary sealing agent 36, and a desiccant 25 is housed in the spacer 11, and at least one through hole 17 is formed in a contact surface with the air layer 33. The whole is formed by arranging.

FIGS. 1A and 1B are explanatory views showing an embodiment of the present invention, wherein the spacer 11 is formed in a substantially cross-sectional shape by using a conventional extruder. Side plate parts 12 and 12, top plate part 13, and bottom plate part 14 having a character shape
In addition, a surrounding portion 10 having a concave portion 15 is formed at a central portion in the longitudinal direction of the both side plate portions 12, 12. An appropriate desiccant 25 is stored.

Further, as is apparent from FIG. 1B, the spacer 11 in this case is designed so that the longitudinal section S ₂ of the space 16 in which the desiccant 25 is stored is relatively small. By increasing the vertical cross-sectional area S ₁ obtained by the respective thicknesses a of the side plate portion 12, the top plate portion 13, and the bottom plate portion 14, that is, by integrally increasing the thickness a relatively, I have.

The top plate 13, which is the contact surface with the air layer 33, may be provided with one or both ends in the length direction and, if necessary, a center portion in the length direction. In addition, a through hole 17 having an appropriate shape such as an ellipse, an ellipse, and a rectangle, in addition to the substantially circular shape, is disposed at the position.

In this case, the through hole 17 is provided only at the end of the spacer 11 in the longitudinal direction.
It is necessary to make the diameter large so that a necessary and sufficient communication state can be secured between the desiccant in the space and the air layer. At that time, ensure proper ventilation in the drying agent 25, which is accommodated in the time of mounting so as not to become out to the outside through the hole 17, to fill the breathable click Tsu Deployment member 18 such as a sponge material While being closed.

FIGS. 3A to 3C show another embodiment of the spacer according to the present invention, which is divided into patterns. Among them, the spacer 11a shown in FIG.
1, the shape of the side plate portion 12a and the bottom plate portion 14a are formed in the same manner as in FIG. 1, only the top plate portion 13a is formed by bending inward, and a rectangular shape is formed on the side of the top plate portion 13a. When the hole 17a is provided, the spacer 11 shown in FIG.
b, the inclined plate portion 19 is interposed between the side plate portion 12b and the top plate portion 13b narrower than the bottom plate portion 14b, and a rectangular through hole 17b is provided on the side of the top plate portion 13b. In the case, the spacer 11c shown in (c) is interposed between the vertical portion 20 vertically suspended from the side of the top plate portion 13c narrower than the bottom plate portion 14c and the vertical portion 20 and the side plate portion 12c. And a case where a rectangular through-hole 17c is provided on one or both sides of the vertical portion 20. In addition, although the through holes 17a to 17c in these cases are all formed to have a rectangular shape, a circular or oval shape other than the illustrated example is used.
An appropriate shape such as an oval can be adopted.

Since the present invention is constructed in this manner, the spacer 11 itself does not require the through-holes 17 to be provided at many places as in the prior art, and the thickness a of the spacer 11 is reduced to the conventional thickness. It can be formed relatively thicker, and can be integrally formed by extruding using a general-purpose extruder without using a dedicated extruder that is small and has a small discharge amount. It is possible to improve the productivity by increasing the retention.

Moreover, the through-holes 17 provided in the top plate 13 located on the surface of the spacer 11 which is in contact with the air layer 33 formed in the multilayer glass 31 have a sufficiently large diameter. Since it is formed, the necessary and sufficient communication between the desiccant 25 and the air layer 33 in the space 16 can be ensured even if the disposition position is reduced.
The work of arranging the through holes 17 itself can be simplified, which can contribute to an improvement in productivity.

In the present invention, the work of arranging the through holes 17 is performed as a post-processing after extrusion molding and cutting to a predetermined length. As a result, restrictions on the shape of the spacer 11 itself are reduced. For example, as shown in FIGS. 3A to 3C, extrusion molding can be performed under many variations, and it is possible to flexibly cope with diversifying design needs.

[0020]

As described above, according to the present invention, since the spacer itself can be formed relatively thicker than before, a dedicated extruder that is small and has a small discharge amount is used. Without using a general-purpose type extruder, it can be integrally formed under various geometric variations, thereby increasing the production yield and improving the productivity.

In addition, the through holes provided in the spacer and located at the contact surface with the air layer formed in the double glazing have a diameter between the desiccant in the space and the air layer. Since it is formed large enough to ensure a sufficient communication state as required , the number thereof can be reduced, and the through hole arranging operation can be simplified.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an embodiment of the present invention, in which (a) is a partial perspective view showing a main part, and (b) is a correlation between a thick portion and an inner space portion. FIG.

FIG. 2 is an explanatory view showing an example of the structure of a double-layer glass incorporating a spacer according to the embodiment of FIG. 1;

FIG. 3 shows another embodiment of the present invention (a), (b), and (c).
FIG.

FIG. 4 is an explanatory view showing an example of the structure of a double-layer glass incorporating a conventional spacer as patterns (a) and (b).

[Explanation of symbols]

 10: Surrounding part 11, 11a, 11b, 11c: Spacer 12, 12a, 12b, 12c: Side plate part 13, 13a, 13b, 13c: Top plate part 14, 14a, 14b, 14c: Bottom plate part 15: Concave part 16: Space Part 17, 17a, 17b, 17c: Through hole 18: Breathable cushion material 19: Swash plate part 20: Vertical part 21: Horizontal part 25: Desiccant 31: Double-layer glass 32: Plate glass 32a: Peripheral part 33: Air layer 34: Primary sealing agent 35: Void portion 36: Secondary sealing agent

Claims (1)

(57) [Scope of request for utility model registration] 1. A spacer for a double glazing, which is interposed so as to form an air layer with a distance between plate glasses, has at least a surrounding portion and a space formed by the surrounding portion and containing a desiccant. The surrounding portion has a cross-section that is thickened and a through-hole is provided on at least one end side in a length direction located on a contact surface with the air layer , The diameter of the through hole is larger than the particle size of the desiccant.
At the position corresponding to the through hole in the space.
A spacer structure for a double glazing characterized by being filled with a temper cushion material .