JPS64144Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is a double-glazed glass (hereinafter referred to as a glass made of transparent resin plates) which has a heat insulating effect by forming a sealed air layer between two transparent glass plates or transparent resin plates. It relates to a spacer for double glass used when configuring a glass panel.

[Conventional technology]

Generally, airtight frozen/refrigerated cases include:
It is essential to construct a transparent wall using a glass plate or a transparent resin plate. This transparent wall is usually constructed by stacking two or three glass plates or transparent resin plates with spacers in between so as to have a heat insulating layer of sealed air. In addition, many of these double-glazed windows are square in shape, and accordingly, spacers are also used in the shape of a square frame along the peripheral edge of the plate material. Since this spacer is usually made of metal and is a hollow body with a rectangular cross section, it cannot be integrally molded, and is made by connecting four spacers in a picture frame shape.

FIG. 1 is a diagram showing a conventional spacer frame-like connection structure. Hook portions 111, 11 having spring properties are used to abut two hollow metal spacers 10, 10' having slanted cut end surfaces in a picture frame shape.
An auxiliary metal 11 in the form of an L-shaped plate having a diameter of 1' is used.
That is, by press-fitting the hook portions 111, 111' into the hollow portions of the spacers 10, 10', a predetermined connection strength between the spacers 10, 10' is obtained.

[Problem that the invention attempts to solve]

By the way, if the humidity in the sealed air layer between the two pieces of glass is high, clouding may occur on the inner surfaces of the two pieces of glass during use after assembly. is usually filled with desiccant 12. However, the above-described connection structure has a drawback in that the desiccant 12 cannot be filled into the spacer between the hook portions 111 and 111'.

Also, recently there are cases where double glazing with an R (abbreviation for radius, hereinafter referred to as R) section is required.
The structure described above is unsuitable for such double glazing.

The present invention aims to provide a spacer which eliminates the above-mentioned drawbacks and is particularly suitable for double glass windows having an R section.

[Means for solving problems]

In the present invention, the spacer is composed of a hollow spacer with a rectangular cross section and a substantially L-shape for corners, and a hollow main spacer with a rectangular cross section that connects the corner spacers. Alternatively, a small hole for filling the desiccant is provided in the outer circumferential wall facing the outside air, and a communicating hole is provided in the inner circumferential wall of the main spacer facing the sealed air space.

〔Example〕

Examples of the present invention will be described below.

FIG. 2 shows a perspective view of a refrigerated case 1 using double glass with an R section to which the present invention is applied.

This refrigerated show case 1 includes a bottom machine room 2 containing various equipment necessary for cooling, and a display room 3 having a display space with a substantially trapezoidal cross section. 5,
5, and the rear side can be opened and closed with a sliding door using double glass.

Now, in such a refrigerating case, it is necessary that the pair of side glasses 5, 5 have an R section.

Fig. 3 shows a corner spacer according to the present invention suitable for a spacer for a pair of glasses having such an R section, and Fig. 4 shows a pair of glasses using this with one glass removed. .

Referring to FIG. 3, the corner spacer 20 is a hard hollow body made of synthetic resin or the like and having a predetermined radius and has a substantially L-shaped cross section and a rectangular cross section. The mating cylindrical parts 21, 2
1 is integrally formed. 22 is a hole for filling a desiccant.

The corner spacer 20 is assembled by attaching the cylindrical portion of the spacer 20 to the open end of the metal spacers 10, 10' on the inner surface of one of the glass plates 5a of the pair of glasses, with reference to FIG. 21, 21 may be fitted together and bonded to the glass plate 5a. The main spacers 10, 10' may be filled with a certain amount of desiccant in advance. However, it is possible to fill the spacer 20 with the desiccant through the hole 22, and the spacer 1 can be filled with the desiccant through the cylindrical parts 21, 21.
0 and 10', the entire spacer can be filled after assembly. Note that it is convenient if the spacer 20 is made of transparent resin so that the degree of desiccant filling can be determined. After this, main spacer 1
Another glass plate is glued to the 0, 10', 10'' spacers 20, 20', forming a sealed air space between the two glass plates.

In addition, the corner spacers are metal main spacers 10 and 1, like the spacer 20' on the right side in FIG.
If the axis line with 0' intersects at approximately 90 degrees, it is sufficient to use one molded to a radius corresponding to this. In addition, in the connection method using such a cylindrical part 21, the corner spacer and the metal main spacer are closely connected, so when the other glass plate (not shown) of the pair of glass is assembled, the two glasses are assembled. A sealed air space is formed between the plates. The moisture contained in this sealed air must be absorbed by the desiccant filled in each spacer.
That is, it is sufficient to provide a microhole for communication in the portion facing the sealed air layer.

By the way, when the hole 22 for filling the desiccant is provided on the main surface of the corner spacer 20 as shown in FIG. It will be automatically covered with this other glass plate. In contrast, by providing a hole for filling the desiccant in the outer peripheral wall of the corner spacer, that is, the part facing the outside air, two
After the glass sheets have been adhesively assembled, filling with desiccant can be carried out as a final step. In this way, the filling hole can be closed immediately after filling the desiccant, so that the desiccant can be used to absorb moisture only in the sealed air layer without wasting it. In addition, in this case, the desiccant can be easily replaced.

In addition, the connection between the corner spacer and the metal main spacer is made by butting and bonding the open end to the open end of the metal spacer without forming the cylindrical part 21 as shown in FIG. 3. You can do it like this.

[Effect of idea]

As explained above, when the corner spacer and main spacer of the present invention are used, connection can be easily made without using conventional auxiliary metal fittings, and filling with desiccant is also easy, making assembly easier. Workability is greatly improved. Additionally, since the entire interior of the spacer including the corner spacer can be filled with desiccant, the amount of desiccant can be filled in this space compared to the conventional method where there is a space that is not filled with desiccant when the amount of filling is the same. The volume within the spacer may be reduced by a corresponding amount, and the width dimension of the spacer can be reduced accordingly.

[Brief explanation of drawings]

Fig. 1 shows a sectional view of a conventional spacer connection structure, Fig. 2 is a perspective view of an example of a show case to which the present invention is applied, and Fig. 3 is an example of a corner spacer used in the present invention. FIG. 4 is a perspective view showing the state of connection between the corner spacer and the main spacer. In the figure, 1 is a refrigerated show case, 3 is a display room,
4, 5, 5 is a pair of glass, 5a is a glass plate, 1
0, 10', 10'' are metal main spacers, 11 is an auxiliary metal fitting, 12 is a desiccant, and 20, 20' are corner spacers.

Claims (1)

[Scope of utility model registration request] A hollow spacer with a rectangular cross section is interposed in the shape of a frame along the periphery between two glass or transparent resin plates of the same shape to create a sealed air layer between the two plates. In the pair glass, the spacer is composed of an approximately L-shaped hollow spacer for the corner and a main spacer that connects the corner spacers, and the corner spacer has a joining wall with the glass or a surface facing the outside air. A spacer for double glass, comprising a small hole for filling a desiccant in the outer peripheral wall of the main spacer, and a communicating hole in the inner peripheral wall of the main spacer facing the sealed air space.