JP2016017020A - Multilayered glass - Google Patents

Abstract

The present invention provides a double glazing having a reduced pressure space without requiring a complicated process or equipment. A multi-layer glass of the present invention includes a pair of glass substrates 1, 1 positioned opposite to each other, sheets 2, 2... Integrally including a plurality of spacers 21, 21. , 1 and a decompression space 3 formed between them. The sheets 2 are located in the decompression space 3. A plurality of spacers 21, 21... Hold a distance D 1 between the pair of glass substrates 1, 1. [Selection] Figure 1

Description

  The present invention relates to a multilayer glass, and more particularly to a multilayer glass in which a plurality of spacers are interposed between a pair of glass substrates.

  A multi-layer glass having a structure in which a vacuum gap is formed between a pair of plate glasses by interposing a plurality of spacers between the pair of plate glasses is proposed in Patent Document 1 and the like.

  In the double-glazed glass having the above structure, since a vacuum gap exists, a high heat insulating effect can be obtained.

JP 2003-137613 A

  In order to manufacture the double-layer glass having the above-described structure, for example, a photosensitive material is widely applied on a plate glass, and minute spacers are regularly formed on the plate glass by a photo process. Therefore, it has been difficult to simplify the process and equipment for producing the multilayer glass.

  This invention is invention which solves the said problem, and makes it a subject to provide the multilayer glass which has pressure reduction space, without requiring a complicated process and equipment.

  In order to solve the above-mentioned problems, the present invention is a multi-layer glass having the following constitution.

  The present invention is a multilayer glass comprising a pair of glass substrates positioned opposite to each other, a sheet integrally having a plurality of spacers, and a decompression space formed between the pair of glass substrates. The sheet is positioned in the decompression space, and the plurality of spacers are configured to maintain a distance between the pair of glass substrates.

  The present invention has an effect that a multilayer glass having a reduced pressure space can be provided without requiring complicated processes and facilities.

It is a perspective view of the multilayer glass of 1st embodiment of this invention. It is a schematic sectional drawing which shows the aa line cross section of FIG. Drawing 3A-Drawing 3F are perspective views showing a manufacturing process of multilayer glass of a first embodiment of the present invention in order. It is a schematic sectional drawing of the multilayer glass of 2nd embodiment of this invention.

  The present invention will be described based on embodiments shown in the accompanying drawings.

(First embodiment)
FIG. 1 shows a multilayer glass according to a first embodiment of the present invention. FIG. 2 schematically shows a cross section taken along the line aa in FIG.

  The double-glazed glass of this embodiment has a structure in which a decompression space 3 is formed between a pair of glass substrates 1 and 1 positioned facing each other. The entire circumference of the decompression space 3 is surrounded by a sealing material 4 and is sealed by a pair of glass substrates 1 and 1 and the sealing material 4.

  In the decompression space 3, a plurality of sheets 2, 2. Each sheet 2 has a structure in which a very thin sheet substrate 20 and a plurality of spacers 21, 21... Having a columnar shape such as a cylinder are integrally provided.

  The plurality of spacers 21, 21... Are positioned so as to protrude from the first surface 200 of the sheet substrate 20 (see FIG. 2). The plurality of spacers 21, 21... Are distributed and positioned on the first surface 200 of the sheet substrate 20.

  In the decompression space 3, the plurality of sheets 2, 2... Are positioned by abutting the edges of the sheet substrates 20. In this embodiment, the two sheets 2 and 2 are arranged side by side in one direction, and the four sheets 2, 2... Are arranged side by side in the other direction orthogonal to the one direction. That is, eight sheets 2, 2... Are positioned in a 2 × 4 matrix.

  As shown in FIG. 2, each sheet 2 located in the decompression space 3 projects the same dimension from the first surface 200 of the sheet substrate 20 by placing the second surface 201 of the sheet substrate 20 against the inner surface of one glass substrate 1. The tips of the spacers 21, 21... Are positioned so as to contact the inner surface of the other glass substrate 1.

  The sheet 2 having the plurality of spacers 21, 21,... Holds the distance D1 between the pair of glass substrates 1, 1. The sheet 2 is formed of a transparent material such as glass or resin.

  In FIG. 3A to FIG. 3F, each step of manufacturing the multilayer glass of the present embodiment is shown in order.

  FIG. 3A shows a [substrate preparation / cleaning step]. In this step, out of the pair of glass substrates 1 and 1 used for the multi-layer glass, the glass substrate 1 positioned on the lower side during the production is set and cleaned. The glass substrate 1 has an exhaust hole 10 in the vicinity of the edge.

  FIG. 3B shows a [sealing material application step]. In this step, the sealing material 4 is applied to the upper surface of the glass substrate 1 using the dispenser 5. The sealing material 4 is applied over the entire periphery of the glass substrate 1 along the periphery of the glass substrate 1 that is rectangular in plan view.

  The exhaust hole 10 of the glass substrate 1 is located inside the applied sealing material 4. The sealing material 4 after application is dried and pre-baked.

  FIG. 3C shows the [sheet mounting step]. In this step, the number of sheets 2, 2... Corresponding to the dimensional shape of the glass substrate 1 among the prepared many sheets 2, 2. In FIGS. 3C to 3F, the arrangement of the sheets 2, 2... Is shown in a 2 × 3 arrangement for the sake of simplicity.

  A large number of sheets 2, 2... Are manufactured and stored in advance in other processes not shown. Each sheet 2 from which the spacers 21, 21... Are projected from the sheet substrate 20 can be manufactured, for example, by a press molding process using a mold. It is also possible to integrally form the spacers 21, 21... On the sheet substrate 20 in a process using a photo process or the like.

  FIG. 3D shows a [substrate lamination / assembly process]. In this step, another glass substrate 1 that forms a pair with the glass substrate 1 is laminated on the glass substrate 1 on which the sheets 2, 2. Further, the exhaust pipe 6 is connected from below to the exhaust hole 10 of the lower glass substrate 1.

  FIG. 3E shows an [exhaust step]. In this step, the exhaust pipe 6 connected to the glass substrate 1 is connected to a vacuum pipe (not shown) via the seal head 7, and vacuuming is performed on the sealed space sealed with the sealing material 4. By this evacuation, the sealed space becomes the decompressed space 3. That is, a sealed space in which a plurality of sheets 2, 2... Are arranged and decompressed until reaching a vacuum is the decompressed space 3 of the present embodiment.

  The glass substrates 1, 1 on both upper and lower sides are pressed against the plurality of sheets 2, 2... Positioned in the decompression space 3 by atmospheric pressure. In other words, the plurality of sheets 2, 2... Are sandwiched and fixed between the pair of glass substrates 1, 1 by atmospheric pressure.

  FIG. 3F shows a [chip-off process]. In this step, the exhaust pipe 6 is melted by using a burner or the like (not shown) to seal the decompression space 3 in a vacuum state, and the exhaust pipe 6 is cut.

(Second embodiment)
In FIG. 4, the cross section of the multilayer glass of 2nd embodiment of this invention is shown. The cross section shown in FIG. 4 is a cross section at a location corresponding to the cross sectional view taken along the line aa of the first embodiment.

  Below, detailed description is abbreviate | omitted about the structure similar to the multilayer glass of above-described 1st embodiment among the structures of the multilayer glass of this embodiment.

  In the multi-layer glass of this embodiment, a plurality of sheets 2, 2... Are formed of synthetic resin, and each sheet 2 is given flexibility.

  In addition, the pair of glass substrates 1 and 1 used in the multilayer glass of the present embodiment has a curved plate-like outer shape, not a flat plate-like outer shape as in the first embodiment. The pair of glass substrates 1 and 1 are curved with the same radius of curvature in a side view.

  A curved decompression space 3 is formed between the pair of glass substrates 1 and 1. The pair of glass substrates 1 and 1 that are curved together are located at the same distance D1 across the entire region through the curved decompression space 3.

  A plurality of flexible sheets 2, 2... Are positioned in the decompression space 3 curved in an arc shape in a side view.

  The sheet substrate 20 included in each sheet 2 is positioned in a state of being bent along the lower glass substrate 1 in the drawing. The second surface 201 of the bent sheet substrate 20 hits the curved inner surface of the lower glass substrate 1. The tips of the spacers 21, 21... Projecting from the first surface 200 of the sheet substrate 20 hit the curved inner surface of the upper glass substrate 1 in the drawing.

  Also in the multilayer glass of the present embodiment, the sheet 2 having the plurality of spacers 21, 21,... Maintains the distance D1 between the pair of curved glass substrates 1, 1. Since each sheet 2 has flexibility, even if the glass substrate 1, 1 is a curved plate, the sheet 2 bends following the curve, and is curved by the spacers 21, 21,. A distance D1 between the glass substrates 1 and 1 is maintained.

  As described above, the multilayer glass of the first and second embodiments of the present invention is a sheet integrally including a pair of glass substrates 1, 1 positioned opposite to each other and a plurality of spacers 21, 21. 2 and a decompression space 3 formed between the pair of glass substrates 1 and 1. And in the multilayer glass of 1st and 2nd embodiment, the sheet | seat 2 is located in the pressure reduction space 3, and several spacers 21,21 ... hold | maintain the distance D1 between a pair of glass substrates 1,1. It is configured.

  Therefore, in the double glazing of each embodiment, the reduced pressure space can be obtained without requiring complicated processes and facilities by reducing the pressure in a state where the sheet 2 is sandwiched between the pair of glass substrates 1 and 1. 3 can be provided with a plurality of spacers 21, 21.

  Further, in the multilayer glass of the first and second embodiments, a plurality of sheets 2, 2.

  Therefore, in the multilayer glass of each embodiment, even when manufacturing a large-sized multilayer glass or a special-shaped multilayer glass, the number and arrangement of these multiple sheets 2, 2,... Therefore, it can respond flexibly.

  Moreover, in the multilayer glass of the second embodiment, the sheet 2 has flexibility.

  Therefore, in the multilayer glass of the second embodiment, even if the pair of glass substrates 1 and 1 have a curved outer shape, the sheet 2 itself bends correspondingly, and the glass substrates 1 and 1 are It becomes possible to interpose spacers 21, 21. That is, according to the multilayer glass of the second embodiment, it is possible to provide a curved multilayer glass without requiring a complicated process or equipment.

  As mentioned above, although this invention was demonstrated based on embodiment shown to an accompanying drawing, this invention is not limited to embodiment of each said example. Within the range intended by the present invention, it is possible to make an appropriate design change in each example, and to apply a combination of the configurations of the examples as appropriate.

1 Glass substrate 2 Sheet 3 Depressurized space 20 Sheet substrate 21 Spacer D1 Distance

Claims (3)

A pair of glass substrates positioned opposite to each other;
A sheet integrally having a plurality of spacers;
A reduced pressure space formed between the pair of glass substrates,
The multilayer glass, wherein the sheet is positioned in the decompression space, and the plurality of spacers hold a distance between the pair of glass substrates.   The multilayer glass according to claim 1, wherein a plurality of the sheets are arranged side by side in the decompression space.   The multilayer glass according to claim 1 or 2, wherein the sheet has flexibility.

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