JP2009114036A - Double glazing pane and glass closure member using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a double glazing pane which is easy to handle, good in the work of being assembled, dimensionally stable, and capable of keeping a seal function over a long term. <P>SOLUTION: The double glazing pane is one composed of at least two substantially parallelly disposed glass panes 1 and a spacer 10 continuously and marginally disposed therebetween, wherein the spacer 10 is constituted from a support 12 and a self-adhesive layer 13 coated over the whole outer periphery of the support 12, and the spacer 10 is disposed between the glass panes 1, and the spacer 10 is tightly adhered to the inner surfaces of the glass panes 1 by being inserted into between the glass panes 1 to press the self-adhesive layer 13. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a glass plate used in, for example, a building such as a house, a building, a factory, a vehicle, a greenhouse, or a showcase that houses and displays food, drinks, ornaments, miscellaneous goods, and the like. Related to multi-layer glass comprising at least two glass plates arranged in the space and a spacer continuously interposed at the periphery between the glass plates, and forming a space between the two glass plates inside the spacer It is.

  In recent years, multilayer glass has attracted attention from the viewpoints of heat insulation, soundproofing, anti-condensation, crime prevention, UV protection, scattering prevention, and various proposals have been made.

  FIG. 14 is a partial cross-sectional view showing an example of a conventional multilayer glass. As shown in the figure, the double-glazed glass is composed of two glass plates 1 arranged so as to face each other, and a spacer 2 having a substantially square-shaped cross section interposed in a peripheral portion between the glass plates 1. And a desiccant 3 loaded in the inner hollow portion of the spacer 2 and a sealing material 4 fitted along the outer periphery of the spacer 2. The spacer 2 is formed with a slit 6 for communicating with a space 5 formed between two glass plates 1.

For the sealing material 4, butyl rubber is commonly used because it has a lower water vapor transmission rate than others, has good adhesion to glass, and can maintain the adhesive strength for a long period of time.
Utility Model Registration No. 3128529

  However, the sealing material 4 made of butyl rubber has the above-mentioned advantages, but on the other hand, it is difficult to handle because it is sticky and soft, and it is sticky at high temperatures such as in summer, and is used for assembling multilayer glass. It becomes an obstacle. Further, the sealing material 4 is poor in dimensional stability, and a part of the sealing material 4 protrudes between the two glass plates 1 to deteriorate the sealing function. For this reason, air (moisture) is present in the space 5. It has disadvantages such as intrusion and condensation.

  The object of the present invention is to eliminate the disadvantages of the prior art, to be easy to handle, to be assembled easily, to have dimensional stability, and to maintain a sealing function over a long period of time and to use the same. It is to provide a glass closing member.

In order to achieve the above object, a first means of the present invention is a multilayer glass comprising at least two glass plates arranged substantially in parallel and a spacer continuously disposed at a peripheral portion between the glass plates. In
The spacer is composed of a support made of, for example, a synthetic resin molding, and an adhesive layer such as butyl rubber coated and supported on the entire outer periphery of the support,
By inserting the spacer between the glass plates, the adhesive layer is crushed and is in close contact with the inner surface of the glass plate.

  According to a second means of the present invention, in the first means, a bag containing gas is disposed between the glass plate inside the spacer and the glass plate is in close contact with the inner surface of the glass plate. It is characterized by.

  According to a third means of the present invention, in the second means, a frame is disposed between the glass plate on the outer periphery of the bag, and the frame and the glass plate are bonded to each other. The spacer is disposed between a glass plate on the outer periphery of the glass plate and the glass plate.

  According to a fourth means of the present invention, in the first to third means, a protrusion is provided on the side of the spacer facing the glass plate.

  According to a fifth means of the present invention, in the fourth means, the protruding portion of the spacer has an arcuate cross section.

  A sixth means of the present invention is characterized in that, in the first to fifth means, the end of the multilayer glass plate is sandwiched by a plurality of sandwiching members, and the glass plate and the spacer are pressure-bonded. To do.

According to a seventh means of the present invention, in the sixth means, the clamping member is
The first clamping piece part, the second clamping piece part provided at a predetermined interval from the first clamping piece part, and the first clamping piece part and the second clamping piece part are connected. A connecting piece portion to
A notch portion opened outward at an opening angle of about 90 degrees is formed at a substantially central position of the first and second pressing piece portions, respectively.
In at least one notch, a protrusion is provided on one end edge forming the notch, and a fitting portion is formed at a position facing the protrusion on the other end forming the notch,
The first and second pinching pieces are bent and opposed to each other with the connecting piece portion in between, and half of the first and second pressing piece portions and half of the connecting piece portion are A side surface shape formed by bending the projecting portion into the insertion portion by bending it at a substantially right angle with respect to the remaining half portion around the notch portion is a substantially L-shaped holding member,
The sandwiching member is press-fitted and attached to the four corners of the multilayer glass plate, and the glass plate and the spacer are pressure-bonded by the sandwiching force of the first sandwiching piece part and the second sandwiching piece part. To do.

  The eighth means of the present invention includes a frame body such as a sash frame having a groove on the inner periphery, a multi-layer glass plate attached to the inside of the frame, an outer periphery of the multi-layer glass, and the frame body. In a glass closing member provided with a beet interposed between the groove portions, the multilayer glass plate is a multilayer glass plate of any one of the first to seventh means. is there.

  According to a ninth means of the present invention, in the eighth means, a fitting portion that fits into the groove portion of the frame body is provided in the beat, and an inner dimension of the groove portion is formed on a side surface of the fitting portion. A pressure-sensitive adhesive tape for adjusting the dimensions is detachably attached.

  The present invention is configured as described above, is easy to handle, has good assembly work, has dimensional stability, and can maintain a sealing function over a long period of time, and a glass closing member using the same Can be provided. In particular, the present invention is effective in a multi-layer glass in which the distance between the glass plate and the glass plate is narrow.

  “Glass closing member” described in the specification of the present invention includes a frame having a groove on the inner periphery, a multilayer glass plate attached to the inside of the frame, and an outer periphery of the multilayer glass. With a beet interposed between the groove of the frame body, such as a glass window with a frame constituting a glass window, a glass door, a skylight, a vehicle window, a greenhouse, a showcase, etc. A movable or fixed member that closes the opening with a glass plate is shown.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a multi-layer glass according to the first embodiment of the present invention, FIG. 2 is a cross-sectional view of a spacer used in the multi-layer glass, and FIG. 3 shows a state in which the multi-layer glass is mounted on a sash frame. FIG. 4 is a schematic perspective view for explaining the manufacturing process of the spacer, and FIG. 5 is a schematic cross-sectional view for explaining the manufacturing process of the spacer.

  As shown in FIG. 1, the multi-layer glass 21 according to the present embodiment includes two glass plates 1 disposed so as to face each other, and a spacer 10 that is continuously interposed in a peripheral portion between the glass plates 1. A space portion 5 is formed between the two glass plates 1 inside the spacer 10.

In the space portion 5, the thermal conductivity is lower than air and the specific gravity is heavier than air, for example, argon (thermal conductivity: 3.88 × 10 ⁻⁵ cal / cm · sec · deg specific gravity: 1.8) And an inert gas such as krypton (thermal conductivity: 21.2 × 10 ⁻⁶ cal / cm · sec · deg specific gravity: 3.7) or a gas such as dry air is enclosed to form the gas layer 11. Yes. Thus, by filling the space part 5 with gas and forming the gas layer 11, a high heat retention effect is acquired and the deformation | transformation to the inner side of the glass plate center part by a wind pressure can be suppressed.

  This gas is injected while inserting an injection needle into an adhesive layer 13 between the glass plate 1 shown in FIG. 1 and a support 12 described later, and substituting it with air inside.

  The spacer 10 includes a support 12 and an adhesive layer 13 that is coated and supported on the entire outer periphery of the support 12. The support 12 is made of a material harder than the adhesive layer 13 such as a long and narrow synthetic resin molded body, a hard rubber molded body, a metal wire, a metal plate, a water-repellent paper-like molded body. A synthetic resin molded body made of vinyl chloride is used, and the cross-sectional shape is circular or elliptical.

  For the adhesive layer 13, for example, olefin rubber such as butyl rubber or acrylic rubber, gen rubber such as butadiene rubber or isoprene rubber, polyurethane rubber, silicone rubber, etc. are used. But butyl rubber is awarded because it has low adhesion, good adhesion to glass, and can maintain adhesive strength for a long period of time.

  As shown in FIGS. 4 and 5, the material 14 of the elongated support 12 is pulled out from the reel 15 by a pair of pulling rollers 16 at a predetermined speed and fed into a mold 17 of an extruder.

  In the cavity of the mold 17, a high-temperature melt 18 that is a material of the adhesive layer 13 is pumped by a rotating screw (not shown) to cover the entire outer periphery of the material 14 with a predetermined thickness, The material 14 is pulled out from the mold 17 by a pair of pulling rollers 19. A film having good releasability such as polytetrafluoroethylene or silicone is formed on the outer peripheral surface of the drawing roller 19.

  A water-cooled or air-cooled cooling unit 20 is provided between the mold 17 and the drawing roller 19, and the melt 18 coated and supported on the outer periphery of the material 14 is cooled to become the adhesive layer 13. . The material 14 covered with the adhesive layer 13 is cut into a predetermined length and used for assembling the multi-layer glass 21.

  In the case of this embodiment, the outer diameter D1 of the support 12 shown in FIG. 2 is 1.5 mm, the outer diameter D2 of the adhesive layer 13 is 4.0 mm, and this spacer 10 is between the two glass plates 1 and 1. Inserted, the width L (see FIG. 1) of the space 5 is maintained at 1.5 mm. Therefore, the entire adhesive layer 13 is crushed and deformed by the two glass plates 1, 1 as shown in FIG. 1, and the adhesive layer 13 adheres to the inner surfaces of the glass plates 1, 1. At the same time, since the contact surface pressure is concentrated on the arcuate projecting portion 24 (outer peripheral end), the cross-sectional shape of the support 12 facing the glass plates 1 and 1 is high due to a synergistic effect with the adhesion of the adhesive layer 13 described above. Airtightness can be maintained.

  As shown in FIG. 3, when the multilayer glass 21 is mounted on the sash frame 22, the outer peripheral portion of the multilayer glass 21 is preliminarily formed on the sash frame 22 via a beat 23 having a substantially U-shaped cross section. Is inserted into the groove portion 25.

  At this time, since the beat 23 is usually made of a synthetic resin molding and has a certain degree of hardness, the beat 23 is fitted to the groove 25 due to variations in the outer dimension of the beat 23 and the inner dimension of the groove 25. May be weak.

  In order to solve this problem in this embodiment, as shown in FIG. 3, one adhesive tape 27 such as a double-sided adhesive tape is provided on both side surfaces or one side surface of the fitting portion 26 to be fitted to the groove portion 25 of the beat 23. Alternatively, a plurality of sheets are stacked in advance. Then, the adhesive tape 27 is peeled off to fit the inner dimension of the groove part 25 and inserted into the groove part 25 to eliminate the lowering of the fitting force due to the above-described variation in dimensions, and the multilayer glass 21 is made into the sash frame. Appropriately attached to 22. In the example shown in FIG. 3, an example is shown in which one of the left adhesive tapes 27 is peeled off and the dimensions are adjusted toward the drawing.

  FIG. 6 is a sectional view of a multilayer glass according to the second embodiment of the present invention, and FIG. 7 is a partial perspective view of a bag used for the multilayer glass.

  In the case of this embodiment, the bag body 28 is mounted in the space 5 between the glass plates 1 and 1. The bag body 28 includes a frame 29 having a square shape with the entire periphery trimmed, a bag 30 housed in the frame 29, and an outer surface of the frame 29 from the inside of the bag 30. It is comprised from the thin tube 31 penetrated toward.

  The frame 29 and the thin tube 31 are made of synthetic resin or metal, and the bag 30 is made of a flexible synthetic resin film. In the present embodiment, the U-shaped frame 29 having the front shape is used. However, the frame 29 having the U-shaped front shape can be used to reduce the weight and reduce the material.

  The bag 30 with the thin tube 31 is housed in a frame 29 to form a bag 28, and the bag 28 is inserted between the glass plates 1 and 1, and the glass of the frame 29 as shown in FIG. The surface in contact with the plate 1 is bonded with an adhesive 34 or a double-sided tape.

  Then, an inert gas such as argon or krypton or a gas 32 such as dry air is injected into the bag 30 from the thin tube 31 (see FIG. 7), and the gas layer 11 is formed in the bag 30 to form the thin tube 31. The opening is sealed with an adhesive 33 such as butyl rubber (see FIG. 6). By injecting the gas 32, the flexible bag 30 is in close contact with the inner surface of the glass plate 1. Thereafter, the spacer 10 is attached to the bag body 28 via the adhesive layer 13 by mounting the spacer 10 along the periphery of the bag body 28. Therefore, the gas layer 11 is sealed with a double structure by the bag body 28 and the spacer 10, and high airtightness can be maintained.

  The bag 30 is made of a flexible colorless or colored transparent synthetic resin film. Moreover, it can also be comprised with the synthetic resin film which printed the pattern etc. as needed, the functional film which performed the process which selectively permeate | transmits and reflects light and heat, or a semi-transparent synthetic resin film.

  As described above, various types of bags 30 made of a colorless transparent synthetic resin film, a colored transparent synthetic resin film, a printed synthetic resin film, a functional synthetic resin film, a translucent synthetic resin film, etc. are prepared. Thus, the glass plate 1 can be shared by a transparent glass plate.

  Moreover, the gas enclosed in the bag 30 can also be colored using the bag 30 produced with the colorless and transparent synthetic resin film.

  FIG. 8 is a cross-sectional view showing another modified example of the spacer 10. In this example, the cross-sectional shape of the support 12 is a polygon such as a quadrangle or hexagon, and the entire outer periphery of the support 12 is shown. The adhesive layer 13 is coated and supported.

  FIG. 9 is an enlarged cross-sectional view showing still another modified example of the spacer 10. In this example, one or more (four in this example) cross-sectional projections 24 are formed on the outer peripheral portion of the support 12. The projecting portion 24 locally increases the contact pressure with the glass plate 1 and can exhibit a good sealing effect.

  Further, a concave portion 35 is formed between the protruding portion 24 and the protruding portion 24, and the concave portion 35 faces the glass plate 1, whereby the adhesive layer 13 is reliably held between the glass plate 1 and the concave portion 35.

  The end portions (four corners in this embodiment) of the multilayer glass 21 obtained by the above embodiments are elastically sandwiched in the stacking direction by a plurality of sandwiching members 36 as shown in FIG.

  In the present embodiment, a clamping member 36 made of a metal plate is used, FIG. 11 is a development view of the clamping member 36, and FIG. 12 is a perspective view of the assembled clamping member 36. In the present embodiment, specifically, an iron plate having a plate thickness of 0.25 to 0.3 mm, subjected to surface coin processing by gas carburizing, and further subjected to rust prevention plating is used as a material of the clamping member 36.

  As shown in FIG. 11, the planar shape of the developed clamping member 36 has a substantially rectangular shape. The first clamping piece 37 and a first clamping piece 37 provided at a predetermined interval from the first clamping piece 37. 2 pinching piece portions 38, and a connecting piece portion 39 for connecting the first pinching piece portion 37 and the second pinching piece portion 38 to each other. 38 and the connecting piece 39 are provided in parallel along the longitudinal direction of the clamping member 36.

  Reference numeral 40 denotes a joint portion between the first pinching piece portion 37 and the connecting piece portion 39 and a valley fold line (imaginary line) of the joint portion between the second pinching piece portion 38 and the connecting piece portion 39.

  At substantially the center position of the first and second clamping piece portions 37 and 38, the cut-out portions 41 and 41 having a substantially L-shaped planar shape opened outward at an opening angle of approximately 90 degrees are opposed to each other. Is formed. For example, a circular protrusion 43 is provided at an intermediate portion of one end edge 42 forming the notch 41, and an intermediate portion of the other end edge 44 forming the notch 41, that is, a position facing the protrusion 43. A fitting portion 45 having the same shape as the protruding portion 43 (circular in this embodiment) is formed.

  In the present embodiment, the planar shape of the protruding portion 43 and the fitting portion 45 is circular, but any shape may be used as long as it has a retaining effect such as a square.

  In the present embodiment, the protruding portions 43 and the fitting portions 45 are provided in both the cutout portions 41, but the protruding portions 43 and the fitting portions 45 can be provided only in one of the cutout portions 41. Reference numeral 46 is a valley fold line (virtual line) connecting the vertices of both the notches 41.

  A first nip piece 37 and a second nip piece 38 are valley-folded with respect to the connecting piece 39 along the valley fold line 40 shown in FIG. The pressure piece portion 37 and the second pinching piece portion 38 are opposed to each other. Further, along the valley fold line 46, the first clamping piece portion 37, the second clamping piece portion 38, and the half portion of the connecting piece portion 39 are substantially perpendicular to the remaining half portion with the cutout portion 41 as the center. Bending and fitting the protruding portion 43 into the fitting portion 45 constitutes a sandwiching member 36 having a substantially L-shaped side surface as shown in FIG. The L-shaped shape of the clamping member 36 can be maintained by the engagement (prevention of detachment) of the protruding portion 43 and the fitting portion 45.

  As shown in FIG. 12, the front ends of the first and second pressing pieces 37 and 38 are slightly inward of each other, and the interval W is the total thickness T of the multilayer glass 21 (see FIG. 1). Designed slightly shorter than (W> T).

  In this embodiment, a metal plate such as an iron plate is used as the material of the clamping member 36, but a hard synthetic resin plate such as polypropylene resin may be used instead of the metal plate.

  FIG. 13 is a perspective view showing a modification of the clamping member 36. In this example, the clamping member 36 is integrally formed of a hard synthetic resin such as FRP or synthetic rubber. The overall configuration and dimensional relationship (W> T) of the clamping member 36 are substantially the same as those of the clamping member 36 shown in FIG. 12, but the protruding portion 43 and the fitting portion 45 are not provided.

  As shown in FIG. 10, the glass plate 1 and the spacer 10 (by the elastic force of the first clamping piece portion 37 and the second clamping piece portion 38, by press-fitting and attaching the clamping members 36 to the four corners of the multilayer glass 21. In addition, the bag body 28) is crimped. When one side of the multi-layer glass 21 is long, a side-shaped I-shaped holding member in which the first pressing piece part, the second holding piece part and the connecting piece part are simply provided in the middle is press-fitted, Just install it.

  The clamping member 36 can be fixed to the multi-layer glass 21 by the clamping force of the clamping piece portions 37 and 38. However, in order to ensure the fixing, the clamping member 36 may be fixed using a double-sided tape or an adhesive.

  In the above embodiment, a single glass plate is used. For example, a glass plate on which a functional film that selectively transmits and reflects light and heat is attached, or a synthetic resin film for preventing crime and preventing glass scattering is attached. It is also possible to use a coated glass plate or a glass plate coated with a functional thin film such as ultraviolet ray absorption or heat generation.

  The multi-layer glass according to the embodiment and the glass closing member using the same are, for example, buildings such as ordinary houses, buildings, factories, vehicles such as automobiles, trains, airplanes, greenhouses, foods and drinks, decorations, and miscellaneous goods. It can be used in various fields such as showcases for storage and display.

1 is a cross-sectional view of a multilayer glass according to a first embodiment of the present invention. It is sectional drawing of the spacer used for the multilayer glass. It is a partial cross section figure which shows the state which mounted | wore the sash frame with the multilayer glass. It is a schematic perspective view for demonstrating the manufacturing process of the spacer. It is a schematic sectional drawing for demonstrating the manufacturing process of the spacer. It is sectional drawing of the multilayer glass which concerns on 2nd Embodiment of this invention. It is a partial perspective view of the bag used for the multilayer glass. It is sectional drawing which shows the modification of a spacer. It is an expanded sectional view showing other modifications of a spacer. It is a top view of the multilayer glass which concerns on embodiment of this invention. It is an expanded view of the clamping member used by embodiment of this invention. It is a perspective view which shows the state which the clamping member assembled. It is a perspective view which shows the modification of a clamping member. It is a partial cross section figure which shows an example of the conventional multilayer glass.

Explanation of symbols

  1: glass plate, 2: space, 10: spacer, 11: gas layer, 12: support, 13: adhesive layer, 14: material, 15: reel, 16: drawer roller, 17: mold, 18: melting Material: 19: Drawer roller, 20: Cooling part, 21: Multi-layer glass, 22: Sash frame, 23: Beat, 24: Projection part, 25: Groove part, 26: Fitting part, 27: Adhesive tape, 28: Bag Body: 29: frame, 30: bag, 31: capillary, 32: gas, 33: adhesive, 34: adhesive, 35: recess, 36: clamping member, 37: first clamping piece, 38: first 2 pinching piece parts, 39: connecting piece part, 40: valley fold line, 41: notch part, 42: edge, 43: protruding part, 44: edge, 45: insertion part, 46: valley fold line.

Claims (9)

In a double-glazed glass comprising at least two glass plates arranged substantially in parallel and a spacer continuously interposed at the peripheral edge between the glass plates,
The spacer is composed of a support and an adhesive layer coated and supported on the entire outer periphery of the support,
A multilayer glass plate, wherein the spacer is interposed between the glass plates so that the adhesive layer is crushed and is in close contact with the inner surface of the glass plate.   The multilayer glass plate according to claim 1, wherein a bag containing gas is disposed between the glass plate inside the spacer and the glass plate, and the bag is in close contact with the inner surface of the glass plate. Multi-layer glass plate.   The multi-layer glass plate according to claim 2, wherein a frame is disposed between the glass plate on the outer periphery of the bag and the glass plate is bonded to the outer periphery of the frame. A multilayer glass plate, wherein the spacer is interposed between the glass plate and the glass plate.   4. The multilayer glass plate according to claim 1, wherein a protrusion is provided on a side of the spacer facing the glass plate. 5.   5. The multilayer glass plate according to claim 4, wherein the protruding portion of the spacer has an arcuate cross section.   The multilayer glass plate according to any one of claims 1 to 5, wherein an end portion of the multilayer glass plate is sandwiched by a plurality of sandwiching members, and the glass plate and the spacer are pressure-bonded. Multi-layer glass plate. The multilayer glass plate according to claim 6, wherein the holding member is
The first clamping piece part, the second clamping piece part provided at a predetermined interval from the first clamping piece part, and the first clamping piece part and the second clamping piece part are connected. A connecting piece portion to
A notch portion opened outward at an opening angle of about 90 degrees is formed at a substantially central position of the first and second pressing piece portions, respectively.
In at least one notch, a protrusion is provided on one end edge forming the notch, and a fitting portion is formed at a position facing the protrusion on the other end forming the notch,
The first and second pinching pieces are bent and opposed to each other with the connecting piece portion in between, and half of the first and second pressing piece portions and half of the connecting piece portion are A side surface shape formed by bending the projecting portion into the insertion portion by bending it at a substantially right angle with respect to the remaining half portion around the notch portion is a substantially L-shaped holding member,
The sandwiching member is press-fitted and attached to the four corners of the multilayer glass plate, and the glass plate and the spacer are pressure-bonded by the sandwiching force of the first sandwiching piece part and the second sandwiching piece part. Multi-layer glass plate. A frame having a groove on the inner periphery, a multilayer glass plate attached inside the frame, and a beat interposed between the outer periphery of the multilayer glass and the groove of the frame. In the glass closure member,
A glass closing member, wherein the multilayer glass plate is the multilayer glass plate according to any one of claims 1 to 7.   The glass closing member according to claim 8, wherein a fitting portion that fits into the groove portion of the frame body is provided on the beat, and the side surface of the fitting portion is adjusted in dimension with the inner dimension of the groove portion. A glass closing member, wherein the adhesive tape is detachably attached.

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