JP2000054748A - Double glazing with gasket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double glazing with gasket which can be easily fitted to a groove portion for glass in a style and give reliable airtightness and watertightness to a glass groove portion. SOLUTION: A gasket 10 is provided respectively to front and rear glass surfaces of the edge portions, a tip portion of the inner surface of the gasket 10 in the extended direction is adhered to the glass surface in one united body, and the remaining tip portion in the extended direction is set in free state relative to the glass surface. In this way, glass can be easily fitted to the glass groove portion 24 of the style 20 thereby assuring definite airtightness and watertightness with glass groove portion 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-glazed glass with a gasket attached to an edge of the double-glazed glass.

[0002]

2. Description of the Related Art A multi-layer glass with a gasket disclosed in JP-A-7-291678 is known. Specifically, it is a multi-layer glass with a gasket in which gaskets are integrally joined to the front and back glass surfaces at the edges of the multi-layer glass. In the case of this double-glazed glass with a gasket, a gasket can be used to seal the gasket between the glass groove and the glass surface by fitting it into the glass groove of the frame forming the frame assembly of the sash shoji. It is easy to fit into the glass groove of the frame because it is integrally joined to the frame.

However, since the gasket is integrally joined to the front and back glass surfaces at the edges of the double-glazed glass, the expansion and contraction of the gasket in the projecting direction is restricted at the joint with the glass surface. The gasket may not be properly pressed into the glass groove of the frame due to the dimensional error of the frame assembly.

Japanese Patent Application Laid-Open No. 9-291766 proposes a double-glazed glass with a gasket which solves this problem. Specifically, the gasket has a substantially groove-shaped cross section at the base and the front and back overhangs, and the base is integrally joined to the end surface of the multi-layer glass, and the front and back overhangs are free with respect to the glass surface. is there. In this way, since the expansion and contraction of the overhang portion in the overhang direction is not restricted, the overhang portion can be correctly crimped to the glass groove portion of the frame even if there is a dimensional error of the frame assembly.

[0005]

As described above, when the overhangs on the front and back of the gasket are free with respect to the glass surface, the overhangs gradually expand from the connection with the base and become substantially V-shaped. As a result, the overhanging portion is easily caught by the glass groove when fitted into the glass groove of the frame. For this reason, when fitting into the glass groove of the frame, it is necessary to carefully fit the overhang so as not to be caught by the glass groove, and the work is troublesome.

Accordingly, an object of the present invention is to provide a double-glazed glass with a gasket which can solve the above-mentioned problems.

[0007]

According to a first aspect of the present invention, a gasket is provided on the front and back glass surfaces of the edge portion of the double-glazed glass 4, and a portion of the gasket near the leading end in the extending direction is integrally joined to the glass surface. There is provided a double-glazed glass with a gasket, characterized in that the portion of the gasket near the protruding end is free with respect to the glass surface.

According to a second aspect of the present invention, there is provided a multi-layer glass with a gasket according to the first aspect, wherein a portion of the gasket near the protruding direction is pressed against both sides of the opening edge of the glass groove of the frame.

[0009]

According to the first aspect of the present invention, the edge of the gasket near the projecting direction is integrally joined to the glass surface, so that the edge of the multilayer glass 4 is fitted into the glass groove 24 of the frame 20. When the gasket is inserted, the portion of the gasket near the projecting direction does not catch on both sides of the glass groove 24. This makes it easy to fit the edge of the double-glazed glass 4 into the glass groove 24 of the frame 20.

[0010] The portion of the gasket near the base end in the extending direction is free with respect to the glass surface, and expands and contracts sufficiently in response to dimensional errors of the frame assembly without being restricted by expansion and contraction in the extending direction. As a result, the gasket is correctly pressed against the glass groove 24, and the airtightness and watertightness between the glass surface and the glass groove can be ensured.

According to the second aspect, the base end of the gasket, which is in a free state with respect to the glass surface, is pressed against both sides of the opening edge of the glass groove portion 24, so that the gasket is held at the opening edge of the glass groove portion 24. More accurate crimping can be performed on both sides. As a result, the space between the glass surface and the glass groove 24 can be air-tight and water-tight more reliably.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a pair of glass plates 1 are laminated with a square spacer 2 interposed therebetween. is there. Gaskets 10 are provided on the edges of the glass surfaces 1 a of the pair of glass plates 1, that is, on the front and back glass surfaces of the edges of the double glazing 4.

The inner surface 10a of the gasket 10 is a flat surface. A portion of the outer surface 10b of the gasket 10 near the multilayer glass end surface 4a in the direction in which the outer surface 10b protrudes (hereinafter, referred to as a protruding portion 11 in the protruding direction) is a curved surface where the front end surface 10c is the thinnest. An intermediate protrusion 12 is integrally provided at an intermediate portion, and a protrusion 13 is integrally provided at a portion opposite to the double-glazed glass end surface 4a in a projecting direction (hereinafter referred to as a projecting direction base end portion). , This ridge 13
A concave portion 14 is formed between the first and second intermediate protrusions 12.

A portion of the inner surface 10a of the gasket 10 near the distal end in the projecting direction, specifically, a portion A from the distal end surface 10c to the intermediate ridge 12 is integrally joined to the glass surface 1a, and the remaining base portion is closer to the proximal end. The part B is in contact with the glass surface 1a without being joined. As a result, the portion of the gasket 10 near the distal end in the projecting direction is integrally joined to the glass surface, and the portion near the proximal end in the projecting direction is free with respect to the glass surface.

As shown in FIG. 2, a frame 20 forming a frame assembly of a glass shoji has a glass groove 24 which is opened inward in a plane by one side plate 21, another side plate 22 and a connecting plate 23. 21, the inner end of the other side plate 22, ie, the glass groove 2
Projections 25 are provided integrally on both sides of the opening edge of the opening 4 so as to face each other.

The edge of the double glass 4 is fitted into the glass groove 24 of the frame 20 together with the gasket 10, and the recess 14 of each gasket 10 is pressed against the projection 25. As a result, the space between the glass surface 1a and both sides of the opening edge of the glass groove 24 is airtight and watertight by the gasket 10.

Since the portion A of the inner side surface 10a of the gasket 10 near the tip in the projecting direction is integrally joined to the glass surface 1a, when the edge portion of the multilayer glass 4 is fitted into the glass groove 24 of the frame 20, Thus, the portion of the gasket 10 near the projecting direction tip does not get caught on both sides of the glass groove 24. This makes it easy to fit the edge of the double-glazed glass 4 into the glass groove 24 of the frame 20.

In addition, since the tip surface 10c of the outer surface 10b of the gasket 10 near the front end in the projecting direction is the thinnest curved surface, the edge of the double-glazed glass 4 is
Is more easily fitted into the glass groove 24.

The portion B of the inner surface 10a of the gasket 10 near the protruding direction is not joined to the glass surface 1a, so that the portion of the gasket 10 near the protruding direction is free with respect to the glass surface 1a. Therefore, the expansion and contraction in the overhang direction is not restricted, and the dimensional error of the frame assembly and the setting block 26 are not restricted.
Fully expands and contracts in response to irregularities in the surface. As a result, the gasket 10 is properly pressed against the glass groove 24, and the space between the glass surface 1a and the glass groove 24 can be reliably air-tight and water-tight.

In addition, a portion of the gasket 10 near the base end in the protruding direction which is free with respect to the glass surface 1a (the concave portion 1).
4) is pressed against both sides (projections 25) of the opening edge of the glass groove 24, so that the gasket 10 can be pressed more correctly by both sides of the opening edge of the glass groove 24. Thereby, the space between the glass surface and the glass groove portion 24 is more reliably airtight and sealed.
Can be watertight.

Next, a method for producing a double glazing with a gasket will be described. As shown in FIG. 3A, the spacer 2 is placed near the edge of one glass plate 1. This spacer 3
Is a material obtained by kneading zeolite into hot melt butyl. As shown in FIG. 3B, an end portion of one glass plate 1 is placed on the spacer 2. In this state, the pair of glass plates 1 and the spacer 2 are bonded by heating and pressing.

As shown in FIG. 3C, the sealing material 3 is filled. As the sealing material 3, a polysulfide or urethane sealing material 3 is used.

As shown in FIG. 3D, a pair of glass plates 1
The gasket 10 is applied to the edge of the glass surface 1a, molded, and integrally joined. The gasket 10 is a urethane-based material, which is directly applied to the glass surface 1a and formed into a predetermined shape using a molding die. When the sealing material 3 is urethane-based, the gasket 10 can be applied and molded at the same time as the sealing material 3 is filled.

The inner surface 1 of the gasket 10 using a cutter
At 0a, the joining portion between the protruding direction proximal end portion B and the glass surface 1a is cut to make the gasket 10 protruding direction proximal end portion free from the glass surface 1a.

When the gasket 10 is formed, masking or the like may be used on the glass surface 1a so that the portion of the gasket 10 near the protruding end of the gasket 10 is not joined to the glass surface 1a.

Next, a second embodiment will be described. As shown in FIG. 4, the gasket 10 has a substantially groove-shaped cross-section with a base 15 and a pair of overhangs 16, and the shape of the pair of overhangs 16 is the same as that of the gasket 10 described above. Then, the base 15 is integrally joined to the end surface 4a of the double-glazed glass 4, and the portions A of the inner surfaces 16a of the pair of overhangs 16 near the leading end in the projecting direction are integrally joined to the glass surface 1a. In the projecting direction at the front end is not joined to the glass surface 1a but only to be brought into contact therewith.

As shown in FIG. 5, the edge of the double glazing 4 is fitted together with the gasket 10 into the glass groove 24 of the frame 20 in the same manner as described above.

[0028]

According to the first aspect of the present invention, since the portion of the gasket near the tip in the projecting direction is integrally joined to the glass surface, the edge of the multilayer glass 4 is joined to the glass groove 24 of the frame 20. When the gasket is fitted into the inside, the portion of the gasket near the projecting direction tip does not catch on both sides of the glass groove 24.
This makes it easy to fit the edge of the double-glazed glass 4 into the glass groove 24 of the frame 20.

The portion of the gasket near the base end in the projecting direction is free with respect to the glass surface, and expands and contracts sufficiently in response to dimensional errors and the like of the frame assembly without restricting expansion and contraction in the extending direction. As a result, the gasket is correctly pressed against the glass groove 24, and the airtightness and watertightness between the glass surface and the glass groove can be ensured.

According to the second aspect of the present invention, since the base of the gasket, which is in the free state with respect to the glass surface, is pressed against both sides of the opening edge of the glass groove 24, the gasket is formed of the glass groove 24. The crimping can be performed more correctly by the both sides of the opening edge. Thereby, the glass surface and the glass groove 24
Air-tightness and water-tightness can be more reliably established between the two.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an edge portion of a double glazing with a gasket according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state where the frame is fitted into a glass groove of a frame.

FIG. 3 is an explanatory diagram of a method for manufacturing a double-glazed glass with a gasket.

FIG. 4 is a sectional view of an edge portion of a double-glazed glass with a gasket according to a second embodiment of the present invention.

FIG. 5 is a cross-sectional view showing a state where the frame is fitted into the glass groove of the frame.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Glass board, 1a ... Glass surface, 2 ... Spacer, 4 ... Multilayer glass, 4a ... End surface, 10 ... Gasket, 10a ... Inner side surface, 10b ... Outside surface, 11c ... Top surface, 12 ... Intermediate ridge, 13 ... projecting ridge, 14 ... recess, 15 ... base, 16 ... overhang, 20 ... frame, 24 ... glass groove, 25 ... projection, 26 ...
Setting block.

Continued on the front page F term (reference) 2E016 AA01 AA04 BA02 BA03 CA01 CB01 CC02 DA00 DA06 DA07 DB03 DC01 DD01 DD04 DD09 EA00

Claims (2)

[Claims] 1. A gasket is provided on the front and back glass surfaces at the edge of the double-glazed glass 4, and a portion of the gasket near the projecting direction front end is integrally joined to the glass surface, and the gasket is near the projecting direction base end. Double glass with a gasket, characterized in that the part is free with respect to the glass surface. 2. The double-glazed glass with gasket according to claim 1, wherein the portion of the gasket near the base end in the projecting direction is pressed against both sides of the opening edge of the glass groove of the frame.