JP2003146709A - Double-glazed unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double-glazed unit which can prevent condensation in the clearance part by maintaining the inside of the clearance part of the double- glazed unit in a prescribed dry condition from immediately after manufacture. SOLUTION: A pair of glass sheets 1, 2 are disposed to face each other via the clearance part V in a thickness direction, peripheral parts of both glass sheets 1, 2 are bonded by a spacer 3 along the peripheral parts of the both glass sheets 1, 2 to hermetically seal the clearance part V. In this double-layered glass P, on at least one glass sheet 1 among the both glass sheets 1, 2, a sheet 5 having hygroscopicity, having a display part 6 on one surface is adhered to a surface 1a of the clearance part V side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is characterized in that a pair of glass sheets are arranged face to face with each other in the thickness direction with a gap therebetween, and the peripheral portions of both glass sheets are joined by spacers along the peripheral portions of the glass sheets. The present invention relates to a double glazing in which a gap is hermetically sealed.

[0002]

2. Description of the Related Art Since such double glazing has excellent heat insulating properties, it has been widely used in windows of buildings in recent years, and is particularly suitable for use in cold regions. However, in the double glazing, it is necessary to prevent the formation of dew condensation in the gap, so it is important to maintain the inside of the gap in a dry state. Therefore, conventionally, a metal hollow spacer is used as a spacer for joining the peripheral portions of both plate glasses,
The spacer is filled with a desiccant, and the spacer is provided with a large number of openings that open to the gap side so that the desiccant in the spacer keeps the gap in a dry state. It is known that a resin-made spacer in which is mixed is used to maintain the inside of the gap in a dry state by a desiccant mixed in the spacer.

[0003]

However, in the structure in which the desiccant is filled in the hollow metal spacer, it is not possible to provide a very large opening in order to prevent the desiccant from spilling. The gas in the gap comes into contact with the desiccant through the opening. Therefore, it is difficult to maintain the inside of the gap in a predetermined dry state immediately after the production of the double glazing, and there is room for improvement in this respect. The same is true when using a resin spacer mixed with a desiccant, the contact between the gas in the gap and the desiccant mixed in the resin is inadequate, and in either case, immediately after the production of the double-glazing Therefore, it was difficult to maintain the inside of the gap in a predetermined dry state.

The present invention focuses on such a conventional problem, and an object thereof is to maintain the inside of the gap portion of the double-glazing glass in a predetermined dry state immediately after the production, and to prevent the occurrence of dew condensation in the gap portion. It is to provide a double glazing which can be prevented.

[0005]

[Structure] The characteristic structure of the invention of claim 1 is that, as illustrated in FIGS. 1 and 2, a pair of plate glasses 1 and 2 are arranged in the thickness direction thereof with a gap V interposed therebetween. A multi-layer glass P which is arranged facing each other, and the gaps V are hermetically sealed by joining the peripheral portions of the both glass plates 1 and 2 with spacers 3 and 7 along the peripheral portions of the two glass plates 1 and 2. Then, in at least one of the both glass plates 1 and 2, the sheet 5 having the moisture absorption performance and having the display portion 6 on one surface is the surface 1 on the gap V side.
It is attached to a.

The feature of the invention of claim 2 is that, as shown in FIG. 1, the surface of the sheet 5 on the display portion 6 side is attached to the one plate glass 1.

As shown in FIG. 1 and FIG. 2, the characteristic configuration of the invention of claim 3 is such that the display section 6 has a manufacturer name MN, a manufacturer number MNo, a product name PN, and a product number PNo of the double glazing P. Alternatively, at least one display selected from the dryness display DD is included.

The fourth aspect of the invention is characterized in that, as shown in FIG. 1, the entire spacer 3 is made of a resin mixed with a desiccant.

As described above, the reference numerals are given for the sake of convenience in comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Operations and Effects] According to the characterizing feature of the invention of claim 1, in at least one of the two plate glasses constituting the double-layer glass, the sheet having the moisture absorption performance is the gap of the double-layer glass. Since it is attached to the surface on the side of the part, the sheet having the moisture absorption property is completely exposed to the gas in the gap part. It is possible to maintain. Then, the sheet having the moisture absorption performance has a display unit on one surface thereof, for example, a display unit for displaying various displays that are not uncomfortable for the user, such as the manufacturer name and the product name of the double glazing. Therefore, although the sheet intends to absorb moisture in the gap, it does not give a strange appearance to the user.

According to the feature of the invention of claim 2, since the surface of the sheet on the side of the display portion is adhered to one plate glass, the display portion of the sheet should be located on the front surface side of the double glazing. As a result, the displayed contents are easy to see, and the discomfort given to the user can be eliminated.

According to the characterizing feature of the invention of claim 3, the display portion of the sheet has a manufacturer name, a manufacturing number, and a manufacturer of the laminated glass.
Since it contains at least one display selected from the product name, product number, or dryness display, in other words, even in the conventional double glazing, there is almost no difference from what was displayed in some form. Therefore, it is possible to show the necessary display to the user without giving the user a feeling of strangeness.

According to the characterizing feature of the fourth aspect of the present invention, since the entire spacer is formed of the resin mixed with the desiccant, as described above, it has an immediate effect immediately after the production of the double glazing. The inside of the gap can be dried by the sheet, and the inside of the gap can be gradually dried by the desiccant mixed in the resin with the passage of time.By the cooperation of the sheet having the moisture absorption performance and the desiccant mixed in the resin. It is possible to maintain the inside of the gap in a predetermined dry state immediately after manufacturing for many years. In addition, since the entire spacer is made of resin, heat conduction through the spacer is suppressed compared to the one using a metal spacer, so there is a large temperature difference between the indoor side and the outdoor side. However, it is possible to effectively prevent the dew condensation on the surface of the double glazing.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a double glazing according to the present invention will be described with reference to the drawings. The multilayer glass P is shown in FIG.
As shown in, for example, a pair of plate glasses 1 and 2 made of transparent rectangular float plate glass are arranged in the thickness direction with a gap V in between so that the surfaces of both plate glasses 1 and 2 face each other. The rectangular peripheral portions of the plate glasses 1 and 2 are configured to be joined by a spacer 3 made of resin. The resin spacer 3 is formed of, for example, a thermoplastic resin such as polyisobutylene mixed with a desiccant,
The resin spacers 3 are configured to join the peripheral portions of the two plate glasses 1 and 2 and to hermetically seal the gap V filled with argon gas, nitrogen gas, krypton gas, or dry air. A resin sealing material 4 made of a thermoplastic resin such as polysulfide is filled on the outer side of the.

In the multi-layer glass P, the sheet 5 having a moisture absorption property is provided with one of the pair of plate glasses 1 and 2, for example, the inner surface of the plate glass 1, that is, the gap V.
It is attached to the side surface 1a. The sheet 5 is formed of a material having a hygroscopic property, or is formed by adding a substance having a hygroscopic property, and the display portion 6 is provided on one surface of the sheet 5. On the display unit 6, various information, for example, the manufacturer name MN of the double glazing P, the manufacturing number MNo, the product name PN, the product number PNo, or
Various information such as the dryness display DD of the gap V is displayed. However, it is not necessary to display all of this information, and at least one of the information, that is, the manufacturer name MN, the manufacturing number MNo, the product name PN, the product number PNo, or the dryness display DD of the double glazing P is selected. At least one selected is displayed, and the display portion 6 of the sheet 5 is displayed.
The surface on the side is adhered to the surface 1a on the gap V side of the one plate glass 1 with an adhesive or the like.

Therefore, according to this double glazing P,
The sheet 5 having a moisture absorbing property is used for the gap V of the double-glazing P.
The moisture in the gap V can be efficiently absorbed immediately after the production of the double glazing P, and the gap V can be maintained in a dry state. That is, the desiccant is also mixed in the resin spacer 3, but since it is mixed in the resin, there is a dislike that it lacks immediate effect. The sheet 5 compensates for the defect, and the gap V is formed immediately after the production of the double glazing P.
The interior of the resin can be maintained in a predetermined dry state, and thereafter, the desiccant mixed in the resin gradually exerts its effect over time, and the desiccant in the sheet 5 and the spacer 3 cooperates with each other. As a result, it is possible to maintain the inside of the gap V in a dry state for many years immediately after manufacturing. And that sheet 5
Is the surface 1a on the side of the gap V of the plate glass 1 on the display 6 side.
Since the display part 6 of the sheet 5 is located on the front surface side of the double glazing P, the external appearance of the sheet 5 is improved for the user even though the sheet 5 having a moisture absorption property is attached. It doesn't make you feel uncomfortable.

[Another Embodiment] Next, another embodiment will be described. However, in order to avoid redundant description, the same components as those described in the previous embodiment or components having the same function are the same. The description is omitted by attaching the reference numerals, and only the configuration different from the previous embodiment will be mainly described.

(1) In the above embodiment, both plate glasses 1,
The example in which the peripheral portion of 2 is joined by the spacer 3 made of polyisobutylene to hermetically seal the gap V is shown, but the spacer 3 can be formed by using other various thermoplastic resins. Furthermore, the gap V can be sealed by using a metal spacer. For example, as shown in FIG. 2, a hollow spacer 7 made of aluminum is used as a spacer for joining the peripheral portions of the two glass plates 1 and 2, and the two glass plates 1 are made of thermoplastic resin 8 through the aluminum spacer 7. , 2 may be joined together to hermetically seal the gap V, and the resin sealing material 4 may be filled on the outside thereof. When such a metal hollow spacer 7 is used, the spacer 7 is filled with a desiccant 9, and a large number of openings 10 that open toward the gap V are provided to dry the sheet 5. It is desirable that the gap V is dried not only by the effect but also by the desiccant 9.

Further, as shown in FIG. 2, the surface of the sheet 5 opposite to the display portion 6 is attached to the inner surface 2a of the plate glass 2, and the surface of the display portion 6 is the gap V of the double glazing P. It can also be configured to point to the side. That is, if the plate glass 1 on the side opposite to the side to which the sheet 5 is attached is transparent, the display content of the display unit 6 can be read through the transparent plate glass 1. In such a case, the sheet 5 can be read.
The surface of the display unit 6 of FIG. 2 may be configured so as to face the gap V side of the double glazing P. Further, in addition to the sheet 5 shown in FIG. It is also possible to attach the sheet 5 to each side, in short, to attach the sheet 5 to each of the surfaces 1a and 2a on the gap V side of both plate glasses 1 and 2, respectively. In any case, not only one surface of the sheet 5 but also both surfaces of the sheet 5 are provided with the display portions 6, and one surface of the both display portions 6 is a surface on the side of the gap V between the plate glasses 1 and 2. It can also be carried out by adhering to 1a and 2a.

Regarding the display on the display unit 6, for example,
As shown in FIG. 2, a substance that has a hygroscopic property such as cobalt chloride and that discolors due to moisture absorption is used, and the indication "Caution due to deterioration of dryness" is specified, and the gap V
It is also possible to configure so that the display rises as the humidity inside rises. In that case, it is preferable that a substance having a hygroscopic property is exposed to the gap V side, so that the surface of the display unit 6 clearly indicating “Be careful due to deterioration of dryness” is directed to the gap V side. Is preferable. Further, as examples of the display unit 6, in addition to those described above, various displays such as a display unit of a red triangle indicating an emergency entrance defined by the Building Standard Act Construction Order can be considered. To be

(2) In the above embodiment, the example in which the double glazing P is constructed by using the flat glazings 1 and 2 made of float glass is shown. However, the flat glazings 1 and 2 forming the double glazing P are floats. Not limited to glass, for example,
Template glass, frosted glass with light diffusion function by surface treatment, meshed glass, lined plate glass, tempered glass, double tempered glass, low reflection glass, high transmission plate glass, ceramic printing glass, special with heat ray and ultraviolet ray absorption function Various kinds of glass such as glass or a combination thereof can be appropriately selected and implemented. Regarding the composition of glass, soda silicate glass, soda lime glass, borosilicate glass, aluminosilicate glass, various crystallized glasses, etc. Can be used.

Further, the shape of the glass sheets 1 and 2 is not limited to a rectangular shape, but may be various shapes such as a circle or a rhombus. It can be used for various applications such as window glass for (automobiles, railway vehicles, ships), or device elements such as plasma displays, and doors and walls of various devices such as refrigerators and heat insulation devices. it can.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of double glazing.

FIG. 2 is a partially cutaway perspective view of a double glazing according to another embodiment.

[Explanation of symbols]

1, 2 pairs of plate glass 3,7 spacer 5 sheets 6 Display DD Dryness display MN manufacturer name MNo serial number PN product name PNo Product number P double glazing V gap

Claims (4)

[Claims] 1. A pair of plate glasses are arranged to face each other in the thickness direction with a gap portion therebetween, and the peripheral portions of the both plate glasses are joined by spacers along the peripheral portions of the both plate glasses to hermetically seal the gap portion. It is a multilayer glass that has been stopped, in at least one of the two glass plates, a sheet having a hygroscopic property and having a display portion on one surface is attached to the surface on the gap side. Double glazing. 2. The double glazing according to claim 1, wherein the surface of the sheet on the display unit side is attached to the one plate glass. 3. The display according to claim 1 or 2, wherein the display includes at least one selected from a manufacturer name, a serial number, a product name, a product number of the double-glazing and a dryness display. The described double glazing. 4. The double glazing according to claim 1, wherein the entire spacer is formed of a resin mixed with a desiccant.