JP2001329758A - Double glazing and double glazing support structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide double glazing easy to be manufactured, stored, transported and assembled in a building and capable of preventing the breakdown of a secondary seal. SOLUTION: Double glazing 1a is obtained by separately providing an inside plate glass 2a and an outside plate glass 2b through a spacer member 4 and primary seals 6 and 6, and fixing an edge of the plate glass with a secondary seal 7. In this double glazing 1a, a groove 9 is formed in the secondary seal, and a holder receiver 8a having a nearly U-shaped cross section is fitted in this groove 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a double glazing and a double glazing support structure.

[0002]

2. Description of the Related Art Due to demands for energy saving and a comfortable indoor environment, double-glazed glass having a heat insulating effect and a dew condensation preventing effect is used as a panel material for buildings. When installing double glazing as panel material as a top light on the roof of a building or mounting it on the outer wall of a building, conventionally, the four sides of each double glazing in the vertical and horizontal directions are in a metal sash such as aluminum. It was attached to and supported. Since such a metal sash was provided so as to protrude from the sheet glass surface of the roof or the outer wall, the design of the building as a whole was inferior. In particular, when used as a top light, dirt and water accumulate on protrusions on the outside of the sash, and there is also a problem of dirt and water leakage.

In order to cope with such a problem, a structural silicone construction method (hereinafter, referred to as "SSG construction method") is known as an example of a panel material support structure on the outer surface of a building. This construction method includes a metal member made of aluminum or the like that substantially supports the panel material, and a structural sealing material made of silicone rubber, silicone sealant, or the like that joins the metal member and the panel material.

[0004] According to such an SSG construction method in which the panel material is supported by bonding, the panel material can be held without projecting a supporting member such as a metal sash to the outer surface of the building, and the design is improved. In particular, when used as a toplight, the blind portion is supported by bonding the double-glazed glass by adhesion, and a method of eliminating projections due to a support member in the direction of the water flow of the toplight is adopted. However, such a construction method requires a complicated work for mounting the double-glazed glass and is considerably expensive.

To solve such problems in the SSG construction method, as shown in FIG. 9, a double glazing 1 having a mounting member 30 is used, and this is mounted on a frame (not shown) to form a double glazing support structure. One has been proposed (Japanese Utility Model Laid-Open No. 4-56890). According to this method, the step of bonding the double-glazed glass and the frame in the SSG construction method is not required, and the step can be simplified and the cost can be reduced.

In FIG. 9, a double glazing 1 is made up of a sheet glass disposed indoors (hereinafter referred to as “inside sheet glass 2a”) and a sheet glass disposed outside (hereinafter referred to as “outside sheet glass 2b”). In the peripheral portion, a spacer member 4 having a desiccant 5 is arranged with a butyl rubber 6 serving as a primary seal interposed therebetween to form an air layer 3. Next, a secondary seal 7 is cast as a structural sealing material, and a metal mounting member 30 is pierced and fixed before the secondary seal 7 is cured. The mounting member 30 is made of an aluminum alloy, and has a protrusion 31 and a side portion 3.
2 and legs 33. The above steps are performed in a factory at the assembling step of the double glazing.

The prior art shown in FIG. 9 has provided a solution to the above-mentioned problems of the SSG construction method, but has the following three new problems.

First, when the double-glazed glass 1 is stored at the factory and when it is shipped from the factory, packing is difficult due to the mounting member 30 attached to the double-glazed glass 1, and the bulk is also large in storage and transportation. Is bad.

Second, it is necessary to attach the mounting member 30 in the factory production of the double glazing 1. This means that it is necessary to carry the bulky mounting member 30 into the factory and store it as a part for assembling, which puts pressure on the work space of the factory. It was also a factor of cost increase.

Third, such a double-glazed glass 1 and a double-glazed glass support structure using such double-glazed glass 1 are as follows:
When receiving a large temperature change, the secondary seal 7 was likely to be sheared and broken. The reason is as follows.

The double glazing 1 can withstand the external wind pressure applied to the outer glass sheet 2b from the outside in terms of strength.
As the secondary seal 7, a high modulus structural sealing material is used. The coefficient of thermal expansion of the aluminum alloy as the mounting member 30 is about 2.4 × 10 ⁻⁵ / ° C.
The thermal expansion coefficients of the inner glass sheet 2a and the outer glass sheet 2b are 9 to 10 × 10 ⁻⁶ / ° C. That is, the attachment member 30 is more likely to expand and contract with a change in temperature than the inner glass sheet 2a and the outer glass sheet 2b. Moreover, since the plate glasses 2a and 2b and the mounting member 30 are hardly elastically deformed, a strong shearing force is applied to the secondary seal 7 in a direction perpendicular to the paper of FIG.

[0012]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and can be easily produced in a factory, stored and transported at low cost, and can be easily incorporated into a building. An object of the present invention is to provide a double-glazed glass and a double-glazed glass support structure that are incorporated and are not likely to cause a secondary seal to break.

[0013]

According to the present invention, a spacer member is interposed at a peripheral portion between two sheet glasses arranged in parallel so that a closed space is formed between the two sheet glasses. In the double-glazed glass, a sealing portion is formed by filling and sealing a structural sealing material in a concave space formed by the edge portions of the two glass sheets and the spacer member, and at least one side of the double-glazed glass The seal portion of
The present invention provides a double-glazed glass characterized in that a groove is formed parallel to the one side and opened outward.

In the case of such a double glazing, since the groove is formed in the seal portion in advance, and the seal portion and the metal mounting member are not bonded, the seal portion may be broken by shearing. Less is. The “double-layer glass” of the present invention refers to a structure composed of two or more sheet glasses. The term “sheet glass” refers not only to inorganic sheet glass represented by soda lime glass, but also to organic sheet glass represented by polymethyl methacrylate, polycarbonate and the like.

In the present invention, it is preferable that a holder having a substantially U-shaped section is fitted into the groove. As the holder receiving member, an extruded product of silicone rubber or a product made of polyvinyl chloride can be used. With such a double glazing, the thermal expansion coefficients of the structural sealing material and the holder receiver are close to each other, the generation of thermal stress is small, and the possibility of the seal portion being sheared and broken is further reduced.

Further, in the present invention, the holder receiving member has the substantially U-shaped cross section formed in accordance with the shape of the groove, and the holder receiving member extends in parallel with the end face of the plate glass. It is also preferred that it also have a part. By providing such a protection portion, the end surface of the glass sheet can be protected.

Further, the present invention is characterized in that a part of a metal holder is inserted into the holder receiver of the double-glazed glass and another part of the holder is fixed to a frame, whereby the double-glazed glass is formed. Provided is a support structure for a double glazing, characterized in that the double glazing is attached to a frame.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a double glazing according to the present invention will be described with reference to FIGS. FIG. 1 is a sectional view of a main part of a first embodiment of a double-glazed glass according to the present invention, FIG. 2 is a perspective view of a holder receiver used for the double-glazed glass of FIG. 1, and FIG. FIG. 4 is a partially cutaway perspective view of the glass, and FIG. 4 is an explanatory view for assembling the double-glazed glass of FIG. 1, where (a) is a cross-sectional view before completion and (b) is a cross-sectional view after completion.

The double-glazed glass 1a is provided with a spacer member 4 (a drying agent 5) so that an air layer 3, which is a closed space, is formed between the inner glass sheet 2a and the outer glass sheet 2b at the peripheral edge thereof. Having). Between the spacer member 4 and the inner glass sheet 2a, and between the spacer member 4 and the outer glass sheet 2b, butyl rubbers 6 as a primary seal are interposed. The inner glass sheet 2a has two opposite sides shorter than the outer glass sheet 2b.

Next, a secondary seal 7 as a structural sealing material is cast in a concave space formed by the edge portions of the two sheet glasses and the spacer member 4, and after the secondary seal 7 has hardened, the seal is cured. A recess is formed in the portion substantially parallel to the side of the sheet glass. A resin holder holder 8a having a substantially U-shaped cross section is inserted into the recess.

As the holder receiving member 8a, an extruded product of silicone rubber or a product made of polyvinyl chloride resin is used. The holder receiver 8a has a groove 9 having a substantially U-shaped cross section.
The inner wall surface 25 and the outer wall surface 26 forming the groove 9 are arranged in parallel with the main surfaces of the inner glass plate 2a and the outer glass plate 2b, and are integrally formed vertically from the inner wall surface 25, and , The plate glass 2a,
2b has a protection part 10 parallel to the end face. In this embodiment, holder holders 8a, 8a are arranged at both ends of the double-glazed glass 1a.

As described above, according to this embodiment,
Since there is no protruding portion in the double-glazing unit 1a, packing is easy, and it is efficient in storage and transportation because it is not bulky. In addition, there is no need to carry in and store the bulky mounting member 30 in the double-glazing manufacturing plant.

The holder holder 8a made of resin is different from a metal attachment member or holder made of aluminum alloy or the like, and is easily elastically deformed. Therefore, the double glass 1a and the double glass using such double glass 1a are used. The layered glass support structure is less likely to cause shear failure of the secondary seal 7 even when subjected to large temperature changes.

It is preferable to use an appropriately thin resin holder 8a because the holder itself is more easily elastically deformed. As the structural sealing material, silicone rubber is generally used, and when a silicone rubber extruded product is used for the holder receiving member 8a,
Since the coefficient of thermal expansion is substantially the same as that of the structural sealing material, nothing penetrates into the structural sealing material and is substantially equivalent to a state in which nothing is inserted, so there is almost no risk of the structural sealing material being sheared and broken. .

FIG. 5 shows that the double glazing of the present invention is the first to the first glazing.
A description will be given in comparison with the fourth embodiment. FIG. 5A shows the first embodiment described above, in which holder holders 8a, 8a are arranged at both ends of the double-glazed glass 1a. FIG. 5B shows a second embodiment, in which holder holders 8a, 8a, 8b, 8b are
They are arranged on four sides of the multilayer glass 1b. FIG. 5 (c)
This is the third embodiment, and holder holders 8c, 8c, 8b, 8
b are arranged on four sides of the double-glazed glass 1c. FIG.
(D) is a fourth embodiment, in which a flat frame-shaped holder receiver 8d is arranged so as to surround the spacer member 4 of the multilayer glass 1d.

Referring to FIG. 6, the construction of the double-layer glass supporting structure according to the first embodiment of the present invention will be described. Adjacent double-glazed glass 1a, 1a is fixed to frame 19 via holder 17 and holder portion 18, respectively. The holder 17 is fixed to the skeleton 19 by a fixing means such as welding, and the holder portion 18 forms a part of the skeleton 19. Holder 17, holder part 18
Each has an L-shaped portion 27 having a substantially L-shaped cross section, and the holders 8a, 8a of the double glazings 1a, 1a are provided with protrusions 28, 28 at the tips of the L-shaped portions 27, 27. It is inserted. A backup material 15 is provided between the end surfaces of the adjacent double-glazed glasses 1a, 1a, and a seal material 16 is provided outside the backup material.

Referring to FIG. 7, a fifth embodiment of the double glazing of the present invention will be described. FIG. 7A is a sectional view of a main part,
(B) is a sectional view of a main part in a state where the holder is inserted. Unlike the first embodiment, the double glazing 1e uses an inner glazing 2c and an outer glazing 2b of the same dimensions. Accordingly, the shape of the holder receiving member 8e is slightly different from that of the first embodiment. When the holder 17 is inserted into the receiving tool 8e, the protection portion 10 and the holder 1 are protected to protect the end face of the glass sheet.
It is preferable to arrange the cushion material 20 between the first and second cushion members 7.

Referring to FIG. 8, the construction of the support structure for a double glazing according to the second embodiment of the present invention will be described. Adjacent double-glazed glasses 1e, 1e are attached to the frame 19, respectively.
The double glazing 1e shown in FIG. 7 is used. Other points are the same as those of the first embodiment shown in FIG.

For convenience of explanation, the present embodiment has been described with reference to a double glazing composed of two glass sheets. However, the same applies to a double glazing composed of three or more glass sheets. The effect is obtained.

[0030]

According to the present invention, it can be produced at a low cost in a factory, stored and transported at a low cost, and can be incorporated at a low cost even when incorporated into a building. No double glazing and double glazing support structure can be provided.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a first embodiment of a double glazing of the present invention.

FIG. 2 is a perspective view of a holder receiver used for the multilayer glass of FIG.

FIG. 3 is a partially cutaway perspective view of the multilayer glass of FIG. 1;

FIG. 4 is an explanatory view for assembling the double-glazed glass of FIG. 1;
(A) is a sectional view before completion, and (b) is a sectional view after completion.

FIG. 5 is a front view comparing each embodiment of the double-glazed glass of the present invention, (a) is a first embodiment, (b) is a second embodiment,
(C) is the third embodiment, and (d) is the fourth embodiment.

FIG. 6 is a sectional view of a main part of a first embodiment of the double-glazed glass support structure of the present invention.

FIG. 7 is a fifth embodiment of the double glazing of the present invention,
(A) is a principal part sectional view, (b) is a principal part sectional view in the state where the holder was inserted.

FIG. 8 is a sectional view of a main part of a second embodiment of the support structure for a double glazing according to the present invention.

FIG. 9 is a sectional view of a main part of a conventional double glazing.

[Explanation of symbols]

 1, 1a, 1b, 1c, 1d, 1e: double-glazing 2a, 2c: inner glass 2b: outer glass 3: air layer 4: spacer member 5: desiccant 6: primary seal 7: secondary seal 8a, 8b , 8c, 8d, 8e: Holder holder 9: Groove part 10: Protective part 17: Holder 18: Holder part 19: Body 20: Cushion material 25: Holder receiver inner wall surface 26: Holder receiver outer wall surface 27: Holder L-shaped -Like part 28: L-shaped part protrusion of holder 30: Mounting member

 ──────────────────────────────────────────────────続 き Continued on front page F term (reference) 2E016 AA05 BA03 CA01 CB01 CC02 DA06 DA07 DC01 EA00 FA00 4G061 AA20 BA01 CB02 CD02 CD24 CD27 DA63 DA68

Claims (4)

[Claims] 1. A double glazing comprising: a spacer member interposed between a pair of glass sheets disposed in parallel so as to form a sealed space between the two glass sheets; A concave portion space formed by the edge portion of the plate glass and the spacer member is filled and sealed with a structural sealing material to form a seal portion. The seal portion on at least one side of the double-glazed glass includes 1
A double glazing characterized in that a groove is formed parallel to the side and opening outward. 2. The double glazing according to claim 1, wherein a holder having a substantially U-shaped section is fitted into the groove. 3. The holder receiving member has the substantially U-shaped cross section formed in accordance with the shape of the groove, and also has a protection portion extending parallel to an end surface of the plate glass. The double glazing according to claim 2, wherein 4. The double-glazed glass according to claim 2 or 3,
Part of the metal holder is inserted into the holder receiver,
A support structure for a double glazing, wherein the other part of the holder is fixed to the frame so that the double glazing is attached to the frame.