JP2000199378A - Elastic seal for sheet glass - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elastic seal for sheet glass, which can absorb difference in expansion and contraction with respect to the sheet glass, and which can prevent the sheet glass from being broken. SOLUTION: An elastic seal 20 for sheet glass is composed of a web 30 and inner and outer flanges 31, 35. A slit 26 is formed extending from the web into parts 32, 36 of the flanges 31, 35 in order to absorb difference in expansion between itself and laminated glass 1, and to increase the tensile strength and compressive strength of the remaining parts 32, 36 of the flanges in comparison with the parts 32, 36 of the flanges. With this arrangement, when a load is applied to the elastic seal for the sheet glass, this load can be borne by the remaining parts of the flanges, thereby making it possible to restrain the elastic seal from being deformed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elastic sealing material for a glass sheet which is interposed between a glass sheet and a frame when the glass sheet is fitted into a frame such as a sash.

[0002]

2. Description of the Related Art Double glazing is often used for window glasses of houses and office buildings. This double-glazed glass has a plurality of glass sheets arranged side by side in the thickness direction via a spacer, and a gap between these glass sheets is filled with dry air to enhance heat insulation, dew-proofing and soundproofing. is there. When attaching the double-glazed glass to the window frame, an elastic sealing material is fitted around the double-glazed glass, and a sash is fitted into the elastic sealing material to surround the double-glazed glass with a sash. . Here, the elastic sealing material is an important member for preventing, for example, rainwater from entering, and will be described in detail with reference to the following drawings.

FIG. 8 is a front view showing an example in which a conventional elastic sealing material is fitted into a double glazing. A plurality of slits 101 are provided at a relatively small pitch P in the elastic sealing material 100 (a plurality of slits are shown; the same applies hereinafter), and the elastic sealing material 100 is fitted around the multilayer glass 102. By providing slits 101 in the elastic sealing material 100, the elastic sealing material 100
And the difference in the amount of expansion and contraction between the multilayer glass 102 can be absorbed.

[0004]

However, the slit 10
By inserting 1 into the vicinity of the inner edge 103 of the elastic seal material 100, the elastic seal material 100 is easily bent at the slits 101. The elastic sealing elements 105 ... separated by the slits 101
The effective length when gripping is P shown in the figure.
Are relatively small, it cannot be said that the grip force of the elastic seal elements 105 is large.

FIG. 9 is a view showing a problem of the elastic sealing material with slits. For example, when the double-glazed glass 102 is transported, a load F is applied to the elastic sealing element 105 by grasping the elastic sealing element 105. In some cases, the elastic sealing material 100 may be deformed in a curved shape. At this time, the corner portions 104 of the elastic sealing material,
104 serves as a fixed end, and loads F1 and F1 for spreading the slits 101 and 101 are applied. Therefore, cracks 10 are formed in the bottoms 101a, 101a of the slits 101, 101.
6 and 106 may occur and may be damaged from there.

Accordingly, an object of the present invention is to provide a technique capable of absorbing a difference in the amount of expansion and contraction between an elastic sealing material for a sheet glass and a double glazing and preventing breakage of the elastic sealing material for a sheet glass. It is in.

[0007]

In order to achieve the above object, a first aspect of the present invention is a channel-type elastic sealing material interposed between a sheet glass and a frame when the sheet glass is fitted into a frame such as a sash. When the channel is assumed to be composed of a web and a flange, an elastic sealing material capable of absorbing a difference in expansion from a sheet glass by forming a slit in a part of the web and the flange to form a slit. It is characterized in that the tensile / compressive strength of the remaining portion of the flange is increased as compared with the portion.

[0008] By increasing the tensile / compression strength of the remaining portion of the flange, when a load F is applied to the elastic sealing material, the load F is supported by the remaining portion of the flange and deformation of the elastic sealing material can be suppressed. For this reason, stress is less likely to concentrate on the slits and corners of the elastic seal material, and damage to the elastic seal material can be prevented.

A second aspect of the present invention is characterized in that tensile / compression strength is increased by embedding a wire in the remaining portion of the flange.
By embedding the wire in the rest of the flange,
Since the compressive strength can be reliably increased, the quality of the elastic sealing material can be improved.

[0010] The third aspect is characterized in that tensile / compressive strength is increased by mixing reinforcing fibers into the remaining portion of the flange. Since the step of embedding the wire in the rest of the flange can be eliminated, the flange having enhanced tensile / compression strength can be formed relatively easily.

According to a fourth aspect of the present invention, the thickness of the remaining portion of the flange is made larger than the thickness of a part of the flange to increase the tensile / compression strength. Since the step of embedding the wire in the remaining portion of the flange and the step of mixing the reinforcing fiber with the remaining portion of the flange can be eliminated, the flange having enhanced tensile / compression strength can be more easily formed.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a front view of an elastic sealing material for a sheet glass (first embodiment) according to the present invention, and an elastic sealing material 20 for a sheet glass is provided around the multilayer glass 1 (upper side 3, left side 4, lower side 5, and right side 6). An example in which is inserted. The elastic sealing material 20 for a sheet glass is provided with a plurality of slits 26 at a fixed pitch P in order to absorb a difference in expansion and contraction with the double-glazed glass 1. It is a sealing material in which a reinforcing wire 28 is embedded along the inner circumference 20a in order to increase the tensile / compression strength. less than,
A procedure for assembling the elastic sealing material 20 for a glass sheet to the double-glazed glass 1 will be described.

FIGS. 2 (a) to 2 (d) are views for explaining the procedure for assembling the elastic sealing material for sheet glass (first embodiment) according to the present invention.
The fifth elastic seal members 21 to 25 will be described separately. (A)
, The first elastic sealing material 21 is fitted into the left half of the upper side 3 of the double-glazed glass 1, and then the elastic sealing material 20 is bent from the slit 26 as indicated by the arrow at the first bent portion 21a.

In (b), the bent second elastic sealing material 22 is fitted into the left side 4 of the double-glazed glass 1, and then the elastic sealing material 20 is cut in the second bent portion 22a as shown by an arrow.
Bend from 6. In (c), the bent third elastic sealing material 23 is fitted into the lower side 5 of the double-glazed glass 1,
The elastic sealing material 20 is bent from the slit 26 as indicated by the arrow at the bent portion 23a.

In (d), the bent fourth elastic sealing material 24 is fitted into the right side 6 of the double-glazed glass 1, and then the fifth elastic sealing material 25 bent from the slit 26 at the fourth bent portion 24a. Into the right half of the upper side 3 of the double glazing 1. In addition,
For ease of understanding, the end portion 21b of the first elastic seal member 21 and the end portion 25a of the fifth elastic seal member 25 have been described apart from each other, but in reality, as shown in FIG. To keep the respective ends 21b and 25a in contact with each other.
This completes the work of assembling the sheet glass elastic sealing material 20 to the double-glazed glass 1. Hereinafter, the slits 26 and the wires 28 of the double-glazed glass 1 and the elastic sealing material 20 for sheet glass
Will be described in detail.

FIG. 3 is a sectional view taken along the line 3-3 in FIG. 1 and shows a state in which the elastic sealing material 20 is fitted into the double-glazed glass 1. FIG. The double-glazed glass 1 is formed by arranging a plurality of glass sheets in parallel in order to enhance heat insulation, dew-proofing and soundproofing. For example, an inner glass sheet 8 and an outer glass sheet 9 arranged at regular intervals,
A metal spacer 12 disposed in a gap 10 between the inner glass sheet 8 and the outer glass sheet 9 and containing a desiccant 11; a seal for embedding the metal spacer 12 and sealing the gap 10 between the inner glass sheet 8 and the outer glass sheet 9; It is a member made of a material 13 and filled with dry air in a gap 10 between the inner glass sheet 8 and the outer glass sheet 9. The inner and outer glass sheets 8 and 9 are preferably, for example, screened glass, tempered glass, or float glass.

Next, the elastic sealing material 20 for sheet glass will be described. In general, a channel such as the elastic sealing material 20 for a sheet glass has a range W of “web” and the ranges F and F of a “flange”, but the elastic sealing material 20 for a sheet glass has a hard resin and a soft resin. Since it is formed by two-color molding, the hard resin portion will be described as a web and the soft resin portion as a flange.

The elastic sealing material 20 for a sheet glass is a channel-type sealing material fitted on each side (only the lower side 5 is shown) of the multilayer glass 1 for mounting a frame 40 such as a sash on the multilayer glass 1. In this case, the web 30 having a U-shaped cross section is formed of a hard resin, and the inner and outer flanges 31, 35 are integrally formed of a soft resin in two colors. As the soft resin and the hard resin, for example, vinyl chloride is preferable.

The elastic sealing material 20 for a sheet glass is multi-layered by hanging a slit 30 having a depth D (hereinafter, referred to as “slit depth”) over the web 30 and portions 32 and 36 of the flanges 31 and 35. Absorbs the difference in expansion with glass 1,
In addition, the wires 28 and the remaining portions of the flanges 31 and 35 (that is, the inner peripheral side of the
By embedding 28, the tensile / compressive strength of the remaining portions 33 and 37 is increased as compared with the portions 32 and 36 of the flange.

The wires 28,
By embedding 28, the tensile / compression strength of the remaining portions 33, 37 of the flange can be reliably increased as compared with the portions 32, 36 of the flange. As the wire 28, a wire made of metal such as copper alloy, glass fiber or carbon fiber is used as an example.

The sash 40 has a concave portion 41 for receiving the elastic sealing material 20, an inner claw 42 fitted into the outer groove 31 a of the inner flange 31, and an outer claw fitted into the outer groove 35 a of the outer flange 35. 43 is a metal member that can be attached to a window frame (not shown).

FIG. 4 is an enlarged view of a part 4 of FIG. 1, and shows a pitch P of the slits 26, a slit depth D and a slit 26.
(Hereinafter referred to as “slit width”) W. FIG. By making the pitch P relatively small, the slit 26
Can be increased sufficiently. For this reason, even if the slit width W is made relatively small to make it difficult for foreign substances to enter the slits 26, it is possible to absorb the difference in the amount of expansion and contraction between the elastic sealing material 20 for sheet glass and the double-glazed glass 1. Specifically, the slit width W is preferably set to 0 to 5 mm, more preferably 0 to 2 mm. Note that the slit width W is not limited to this range.

Since the flange 35 is a soft resin and has a high coefficient of thermal expansion, the slit depth D is set so that the slit 26 can be partially inserted into the flange 35 while leaving the remaining portion 37 of the flange 35. For this reason, the difference in the amount of expansion and contraction between the elastic sealant 20 for sheet glass and the double-glazed glass 1 can be more reliably absorbed.

Next, the operation of the elastic sealing material 20 for sheet glass will be described. Since the inner and outer flanges 31 and 35 have the same configuration, only the outer flange 35 will be described, and the description of the inner flange 31 will be omitted. For example, when transporting the double-glazed glass 1 to which the sheet glass elastic sealing material 20 is attached to a building site, a load F is applied to the sheet glass elastic seal 20. The outer flange 35 of the elastic sealing material 20 for a sheet glass is
7, the wire 28 is embedded in the outer flange 35.
The tensile / compressive strength is higher than that of the part 36.

For this reason, since the load F can be supported by the entire remaining portion 37 of the outer flange 35, the elastic sealing material 20 for sheet glass is not deformed. Therefore, the elastic sealing material 20
The stress hardly concentrates on the bottoms 26a of the slits 26, so that breakage of the elastic sealing material 20 can be prevented. As a result, the multilayer glass unit 1 can be transported with confidence.

Next, a second embodiment will be described. The first
The same members as those in the embodiment are denoted by the same reference numerals, and description thereof is omitted. FIG. 5 is a cross-sectional view of an elastic sealing material for a glass sheet (second embodiment) according to the present invention, and shows an example in which the elastic sealing material for a glass sheet 50 is fitted around a single glass sheet 51. The elastic sealing material 50 for a glass sheet is a channel-type elastic sealing material fitted into the periphery 51a of the glass sheet 51, and similarly to the elastic sealing material 20 for a glass sheet of the first embodiment, a web 53 having a U-shaped cross section is hardened. The inner and outer flanges 54 and 55 are made of a resin and are integrally formed of a soft resin by two-color molding.

The elastic sealing material 50 for the sheet glass absorbs a difference in expansion from the sheet glass 51 by hanging a slit 57 having a slit depth D by hanging the web 53 and a part 54a, 55a of the flanges 54, 55, and By embedding the wire 58 in the remaining portions 54b, 55b of the inner and outer flanges 54, 55, the tensile / compression strength of the remaining portions 54b, 55b can be increased as compared with the flange portions 54a, 55a. Therefore, the same effect as in the first embodiment can be obtained.

As in the first embodiment, a wire made of metal such as copper alloy, glass fiber or carbon fiber is used as the wire 58. By applying to a single-pane glass sheet, a user can arbitrarily select a single-pane window glass unit or a double-pane glass pane unit according to the intended use, so that the use range can be expanded.

Next, a third embodiment will be described. The first
The same members as those in the embodiment are denoted by the same reference numerals, and description thereof is omitted. FIG. 6 is a cross-sectional view of the elastic sealing material for sheet glass (third embodiment) according to the present invention, and shows a state in which the elastic sealing material for sheet glass 60 is fitted around the multi-layer glass 1. The elastic sealing material 60 for sheet glass is made up of inner and outer flanges 61 and 62.
Are mixed with reinforcing fibers 63 to increase the tensile / compressive strength of the remaining portions 61b, 62b of the inner and outer flanges 61, 62, and have the same shape as the elastic sealing material 20 for sheet glass of the first embodiment. It is.

The reinforcing fibers 63 are mixed with the flanges 61 and 62 to connect the wires to the remaining portions 61b and 6b of the flanges.
The step of embedding in 2b can be eliminated. For this reason, the elastic sealing material 6 for a sheet glass having enhanced tensile / compression strength.
0 can be formed relatively easily. Reinforcing fiber 6
3 is preferably a metal fiber such as glass fiber, carbon fiber or stainless steel.

The remaining portions 6 of the inner and outer flanges 61, 62
Since it is sufficient to increase the tensile / compression strength of only 1b and 62b, the reinforcing fibers may be mixed only in the remaining portions 61b and 62b without mixing the reinforcing fibers in the portions 61a and 62a of the inner and outer flanges 61 and 62. Similar effects can be obtained.

Next, a fourth embodiment will be described. The first
The same members as those in the embodiment are denoted by the same reference numerals, and description thereof is omitted. FIG. 7 is a cross-sectional view of the elastic sealing material for sheet glass (fourth embodiment) according to the present invention, and shows a state in which the elastic sealing material for sheet glass 70 is fitted around the double glazing 1. The elastic sealing material 70 for a glass sheet is, like the elastic sealing material 20 for a glass sheet of the first embodiment, provided between the multilayer glass 1 and the frame 40 when the multilayer glass 1 is fitted into a frame 40 such as a sash. A channel-type elastic sealing material to be interposed, wherein a web 71 having a U-shaped cross section is formed of a hard resin and inner and outer flanges 7.
2, 75 are two-color molded integrally with a soft resin.

The elastic sealing material 70 for a glass sheet is formed by putting a slit 79 having a slit depth D on the web 71 and the parts 73 and 76 of the flanges 72 and 75.
It absorbs the difference in expansion from the double glazing 1 and has a flange 7
The thickness t, t of the remaining parts 74, 77 of the
By increasing the thickness of the portions 73,76 of the flanges 2,75, the tensile / compression strength of the remaining portions 74,77 of the flanges is increased as compared with the portions 73,76 of the flanges.

The thicknesses t, t of the remaining portions 74, 77 are partially
Since the wall thickness is greater than the thickness of 76 to increase the tensile / compression strength of the remaining portions 74, 77, there is no need to embed the wires in the remaining portions of the flanges, and it is not necessary to mix reinforcing fibers in the remaining portions of the flanges. As a result, it is possible to more easily form the elastic sealing material 70 for a plate glass having enhanced tensile / compression strength.

The inner and outer flanges 72 and 75 are provided with inner and outer grooves 7 for fitting the inner and outer claws 42 and 43 of the sash 40.
2a and 75a, protruding pieces 72b and 75b for covering the inner and outer claws 42 and 43, and protruding portions 72c and 75c that contact the inner and outer plate glasses 8 and 9, respectively. Protruding pieces 72b, 75
By forming b, the dimensional errors of the inner and outer flanges 72 and 75 and the inner and outer claws 42 and 43 of the sash 40 can be absorbed. By forming the protruding portions 72c, 75c, the protruding portions 72c, 75c are brought into contact with the inner and outer plate glasses 8, 9, and the inner and outer claws 42, 4 of the sash 40 are inserted into the inner and outer grooves 72a, 75a.
3 can be reliably applied.

Although the double glazing 1 (shown in FIG. 1) is composed of two glass sheets, the window glass unit of the present invention can be applied to a double glazing composed of a plurality of glass sheets other than two. it can.

[0037]

According to the present invention, the following effects are exhibited by the above configuration. Claim 1 has increased the tensile / compression strength of the remainder of the flange as compared to a portion of the flange. For this reason, when the load F is applied to the elastic seal material, the load F is supported by the remaining portion of the flange, and the deformation of the elastic seal material can be suppressed. Therefore, stress is less likely to concentrate on the slits and corners of the elastic seal material, and damage to the elastic seal material can be prevented. As a result, the plate glass with the elastic sealing material can be transported with confidence.

According to the second aspect, by embedding the wire in the remaining portion of the flange, the tensile / compressive strength of the remaining portion can be reliably increased. As a result, the quality of the elastic sealing material can be reliably increased, and the plate glass with the elastic sealing material can be transported with confidence.

According to a third aspect of the present invention, the tensile / compressive strength is increased by mixing reinforcing fibers into the remaining portion of the flange. For this reason, the step of embedding the wire in the rest of the flange can be eliminated, so that the flange with enhanced tensile / compression strength can be formed relatively easily. As a result, the cost of the elastic sealing material can be reduced.

In claim 4, the tensile / compressive strength is increased by making the thickness of the remaining portion of the flange larger than the thickness of a part of the flange. For this reason, the step of embedding the wire in the remaining portion of the flange and the step of mixing the reinforcing fiber with the remaining portion of the flange can be eliminated, so that the flange with increased tensile / compression strength can be more easily formed. As a result, the cost of the elastic sealing material can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view of an elastic sealing material for a sheet glass according to the present invention (first embodiment).

FIG. 2 is an explanatory view of an assembling procedure of an elastic sealing material for sheet glass according to the present invention (first embodiment).

FIG. 3 is a sectional view taken along line 3-3 in FIG. 1;

FIG. 4 is an enlarged view of part 4 of FIG.

FIG. 5 is a cross-sectional view of an elastic sealing material for sheet glass according to the present invention (second embodiment).

FIG. 6 is a sectional view of an elastic sealing material for a sheet glass according to the present invention (third embodiment).

FIG. 7 is a cross-sectional view of an elastic sealing material for sheet glass according to the present invention (fourth embodiment).

FIG. 8 is a front view showing an example in which a conventional elastic sealing material is fitted into a double glazing.

FIG. 9 is a diagram showing a problem of an elastic sealing material with a slit.

[Explanation of symbols]

1: plate glass (multilayer glass), 20, 50, 60, 70
... elastic sealing material for plate glass, 26, 57, 79 ... slit, 28, 58 ... wire, 30, 53, 71 ... web,
31, 54, 61, 72 ... flange (inner flange),
32, 36, 54a, 55a, 61a, 62a, 73,
76 ... part of the flange, 33, 37, 54b, 55b,
61b, 62b, 74, 77 ... the rest of the flange, 35,
55, 62, 75 ... flange (outside flange), 40 ...
Frame (sash), 51: sheet glass, 63: reinforcing fiber, t
... thick.

Claims (4)

[Claims] 1. A channel-type elastic sealing material interposed between a sheet glass and a frame when the sheet glass is fitted into a frame such as a sash, wherein the channel comprises a web and a flange. In an elastic sealing material capable of absorbing a difference in expansion from a sheet glass by slitting a part of the flange, the tensile / compressive strength of the remaining part of the flange is increased as compared with a part of the flange. An elastic sealing material for sheet glass characterized by the above. 2. The tensile / compressive strength is increased by embedding a wire in the remaining portion of the flange.
The elastic sealing material for sheet glass according to the above. 3. The elastic sealing material for a sheet glass according to claim 1, wherein the tensile / compressive strength is increased by mixing reinforcing fibers into the remainder of said flange. 4. The elastic sealing material according to claim 1, wherein the thickness of the remaining portion of the flange is made larger than the thickness of a part of the flange to increase tensile / compression strength.