JP7213974B2 - Double glazing spacer and double glazing - Google Patents

Description

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

Patent Literatures 1 and 2 disclose a spacer and double glazing in which a concave portion is provided in the side surface portion of the spacer in contact with the glass plate, and the concave portion is filled with an adhesive or a primary sealing material.

According to Patent Document 1, by filling the recess with an adhesive, the side surface of the spacer and the peripheral edge of the glass plate can be easily bonded to each other, and the bonding effect can be increased. be.

Further, according to Patent Document 2, it becomes easier to carry the primary sealing material in the concave portion.

Japanese Utility Model Laid-Open No. 58-128939 JP-A-10-292743

However, in the conventional spacers disclosed in Patent Documents 1 and 2, when the amount of adhesive or primary sealing material (hereinafter referred to as spacer sealing material) applied is small compared to the volume of the recess, In addition, there is a problem that the spacer and the glass plate are poorly adhered to each other because the recess is left unfilled with the spacer sealing material. In addition, when the amount of the spacer sealing material applied is large compared to the volume of the recess, when the glass plate is pressed against the side surface of the spacer, the spacer sealing material leaks out of the recess and the hollow layer of the multi-layer glass is damaged. Since it may protrude to the side, there existed a problem that the design appearance of double glazing deteriorated.

As described above, the conventional spacer has a problem that it is difficult to adjust the amount of the spacer sealing material applied to the spacer (hereinafter referred to as double-layer glass spacer).

SUMMARY OF THE INVENTION It is an object of the present invention to provide a double glazing spacer and a double glazing in which the coating amount of the spacer sealing material for the double glazing spacer can be easily adjusted. do.

In order to achieve the object of the present invention, a double glazing spacer of the present invention has a longitudinal axis and at least two glass plates are spaced apart from each other. a pair of side surfaces connected to both sides of the inner surface portion; and an outer surface portion connected to the side opposite to the inner surface portion of the pair of side surface portions; A pair of protrusions protruding in the in-plane direction of the inner surface portion, the pair of protrusions forming a recessed space with the side surface portion, and an elastic body arranged in the recessed space. The elastic body is connected to the tip of at least one of the pair of protrusions and extends toward the tip of the other protrusion to close the recessed space .

In order to achieve the object of the present invention, the double glazing of the present invention comprises a plurality of the double glazing spacers of the present invention, and the ends of the multiple double glazing spacers are joined together via a corner key. A multi-layer glass in which at least two glass plates are separated by a frame-like spacer formed by connection, and the spacer main body and the two glass plates are bonded to each other by a spacer sealing material arranged on the elastic body of the spacer main body. The corner key is provided with a sealing material groove in which the spacer sealing material is arranged.

In order to achieve the object of the present invention, the double glazing of the present invention comprises a plurality of the double glazing spacers of the present invention, and the ends of the multiple double glazing spacers are joined together via a corner key. A multi-layer glass in which at least two glass plates are separated by a frame-like spacer formed by connection, and the spacer main body and the two glass plates are bonded to each other by a spacer sealing material arranged on the elastic body of the spacer main body. A dam member is provided between the spacer main body and the two glass plates to prevent the spacer sealing material from protruding outward from the double-layer glass spacer, and the dam member is provided between the two glass plates . It is provided on the projecting portion arranged on the outside of the glass plate and is adhered or pressure-bonded to the glass plate .

According to the present invention, it becomes easy to adjust the amount of the sealing material for spacers applied to the spacers for double glazing.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a main part of a double glazing according to a first embodiment to which a double glazing spacer according to the first embodiment of the present invention is applied; FIG. 2 is an assembly perspective view of the multi-layer glass 12 shown in FIG. 1; FIG. 4 is a perspective view showing a state immediately before the ends of two spacers are connected to the corner key; Explanatory drawing of the corner part of the double glazing of 1st Embodiment (A) and (B) are cross-sectional views of essential parts of a spacer according to a second embodiment of the present invention. (A) and (B) are cross-sectional views of essential parts of a spacer according to a third embodiment of the present invention. (A) and (B) are cross-sectional views of essential parts of a spacer according to a fourth embodiment of the present invention. (A) and (B) are cross-sectional views of essential parts of a spacer according to a fifth embodiment of the present invention. (A) and (B) are cross-sectional views of essential parts of a spacer according to a sixth embodiment of the present invention. (A) and (B) are cross-sectional views of essential parts of a spacer according to a seventh embodiment of the present invention. Cross-sectional view showing a modification of the spacer provided with two spaces (A) and (B) are cross-sectional views of essential parts of a spacer according to an eighth embodiment of the present invention. (A) and (B) are cross-sectional views of essential parts of a spacer according to a ninth embodiment of the present invention. (A) and (B) are cross-sectional views of essential parts of double glazing according to a tenth embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of a spacer for double glazing and a double glazing according to the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view of a main part of a double glazing 12 according to a first embodiment in which a double glazing spacer 10 (hereinafter abbreviated as "spacer 10") according to the first embodiment is employed.

The double glazing 12 shown in FIG. 1 includes a spacer 10 having a longitudinal axis, two rectangular glass plates 14 and 16, a primary sealing material 18 having adhesive properties, and a secondary sealing material 20. there is At least four spacers 10 are provided in the multi-layer glass 12, and the ends of two adjacent spacers 10 out of the four spacers 10 are connected via corner keys 50 (see FIG. 3), which will be described later. be done. As a result, the four spacers 10 are assembled in a frame shape along the peripheral edges of the glass plates 14 and 16 . Here, the primary sealing material 18 is an example of the spacer sealing material of the present invention.

The glass plates 14, 16 have equal surface areas and are spaced apart by spacers 10 assembled into a frame as described above. Both sides of the spacer 10 facing the glass plate 14 and the glass plate 16 are adhered to the glass plate 14 and the glass plate 16 by primary sealing materials 18 , 18 . Thereby, a hollow layer 22 is provided between the inner surface portion of the spacer 10 and the glass plates 14 and 16 . Then, the outer surface portion of the spacer 10 is filled with the secondary sealing material 20 . The multi-layer glass 12 is thus constructed.

The primary sealing material 18 can be exemplified by butyl rubber, and the secondary sealing material 20 can be exemplified by a polysulfide-based or silicone-based sealing material. Note that the primary sealing material 18 and the secondary sealing material 20 may be made of the same material. Further, another sealing material may be provided on the outer surface of the secondary sealing material 20 to protect the secondary sealing material 20, and instead of the secondary sealing material 20, a stile member (not shown) may be arranged and the stile member may be adhered to the outer surface of spacer 10 .

Although the detailed structure of the spacer 10 will be described later, as an example, the spacer 10 is configured in the shape of a hollow pipe having a space 24 inside by extrusion molding of a synthetic resin material. The space 24 is filled with a desiccant 26 such as silica gel. A space 24 is provided along the longitudinal axis of the spacer 10 . Further, the inner surface of the spacer 10 is provided with a plurality of through holes 28 (see FIG. 2) along the longitudinal axis of the spacer 10 at predetermined intervals. The desiccant 26 filled in the space 24 is exposed to the hollow layer 22 through these through-holes 28 , thereby drying the gas in the hollow layer 22 . The fitting portions 54 (see FIG. 3) of the corner key 50 are fitted into the openings of the spaces 24 provided at both ends of the spacer 10 . As a result, the four spacers 10 are assembled into a frame shape as described above. In addition, as the gas filled in the hollow layer 22, an inert gas such as argon gas or krypton gas can be exemplified. By filling the hollow layer 22 with such an inert gas, it is possible to provide the double glazing 12 with heat insulating properties.

FIG. 2 is an assembled perspective view of the multi-layer glass 12 shown in FIG. 1, and shows a cross-sectional view of the state before the glass plates 14 and 16 are assembled to the spacer 10. As shown in FIG. First, the detailed structure of the spacer 10 will be described with reference to FIG.

The spacer 10 includes a spacer main body 30, a pair of projections 32, 34 provided on both side surfaces of the spacer main body 30, and elastic bodies 36, 36. As shown in FIG.

The spacer main body 30 includes an inner surface portion 30A, a pair of side surface portions 30B and 30B connected to both sides of the inner surface portion 30A, and an outer surface portion 30C connected to the side opposite to the inner surface portion 30A of the pair of side surface portions 30B and 30B. , and the space 24 is surrounded by these four planes.

The inner surface portion 30A is a flat surface facing the hollow layer 22 (see FIG. 1), and is provided with the through holes 28, 28 described above.

The pair of protruding portions 32 and 34 are plate-like members integrally formed with the spacer main body 30, and are arranged so as to protrude in the in-plane direction of the inner surface portion 30A from the side surface portion 30B. Here, the in-plane direction refers to a direction parallel to the flat surface of the inner surface portion 30A.

The protruding portion 32 is formed on the same plane as the inner surface portion 30A and is arranged to protrude in the in-plane direction of the inner surface portion 30A. The inner surface portion of the spacer 10 is configured by the pair of protruding portions 32, 32 provided with the spacer main body 30 therebetween and the inner surface portion 30A of the spacer main body 30. As shown in FIG.

The protruding portion 34 is formed on the same plane as the outer surface portion 30C parallel to the inner surface portion 30A, and is arranged to protrude in the in-plane direction of the outer surface portion 30C. Thereby, a recessed space 38 is formed between the pair of projecting portions 32 and 34 and the side portion 30B. The outer surface portion of the spacer 10 is configured by the pair of protruding portions 34, 34 provided with the spacer main body 30 therebetween and the outer surface portion 30C of the spacer main body 30. As shown in FIG.

In addition, the amount of protrusion of the protrusions 32 and 34 in the in-plane direction is configured such that the protrusion 32 is longer than the protrusion 34 . Here, the projecting portion 32 is an example of the second projecting portion of the present invention, and the projecting portion 34 is an example of the first projecting portion of the present invention.

The elastic body 36 is a plate-like member or a fin-like member integrally formed with the protrusion 34 and extends from the tip 34A of the protrusion 34 toward the tip 32A of the protrusion 32 . More specifically, the elastic body 36 has a thick proximal end portion 36A connected to a side surface portion 34B of the distal end portion 34A, and a thin distal end portion 36B of the elastic body 36 connected to the distal end portion 32A. is extended so as to be in contact with the outer surface portion 32B of the . Thereby, the concave space 38 is closed by the elastic body 36 . In addition, the elastic body 36 has a shape in which the cross-sectional shape in the direction from the distal end portion 34A to the distal end portion 32A is tapered. In other words, the elastic body 36 is formed so that its thickness decreases from the proximal end portion 36A toward the distal end portion 36B. As a result, the difference in the amount of protrusion of the protrusions 32 and 34 is eliminated by the thickness of the elastic body 36 . The elastic body 36 described above is integrally formed with the projecting portion 34 , but may be integrally formed with the projecting portion 32 or may be integrally formed with both projecting portions 32 and 34 . Here, the closing means a state in which the recessed space 38 is completely closed by the elastic body 36, and at least the front end 36B of the elastic body 36, although there is a very small gap between the front end 36B and the outer surface 32B, is closed. is in contact with the outer surface portion 32B.

In the spacer 10 configured as described above, for example, the spacer main body 30 and the pair of protruding portions 32 and 34 are made of a hard synthetic resin material, and the elastic body 36 is made of a soft material. In this case, the spacer main body 30, the pair of projecting portions 32 and 34, and the elastic body 36 are preferably integrally molded by a two-color extrusion molding method.

Examples of the synthetic resin material forming the spacer main body 30 and the pair of projecting portions 32 and 34 include rigid vinyl chloride resin material, acrylonitrile-styrene resin material, and glass fiber material contained in these materials.

When the spacer main body 30 and the pair of protrusions 32 and 34 are made of a synthetic resin material, it is necessary to block moisture from entering the hollow layer 22 from the sides of the pair of protrusions 32 and 34 . Therefore, it is preferable to attach the moisture permeation prevention film 40 to the outer surface portion 30C of the spacer main body 30 and the side surface portion 36C of the elastic body 36 .

As the moisture permeation prevention film 40, a metal coating film, a ceramic coating film, a composite coating film of metal and ceramic, a metal tape, or a moisture permeation prevention film itself having a moisture permeation prevention performance is made of a resin having moisture permeation prevention performance. A resin film can be exemplified. For example, the metal-coated film may be an aluminum-coated film obtained by coating a plastic film carrier with aluminum having moisture-permeation-preventing properties by means of a vacuum deposition method, a sputtering method, or the like. Examples of the ceramic-coated film include a ceramic-coated film obtained by coating a plastic film carrier with a metal oxide (for example, SiO ₂ ) having a moisture-permeation-preventive property by means of vacuum deposition, sputtering, or the like. Examples of metal tapes include aluminum metal tapes and stainless steel metal tapes. Examples of moisture permeation preventive resin films include fluororesin films and polyvinylidene chloride films.

On the other hand, as the soft material of the elastic body 36, an elastomer represented by rubber, or a cushioning material such as urethane can be exemplified.

The primary sealing material 18 is arranged on the side surface of the elastic body 36 with the moisture permeation prevention film 40 interposed therebetween, as shown in FIG. The primary sealing material 18 is a cord-like body having a substantially circular cross-section, and is arranged along the side surface of the elastic body 36, and is also arranged on the side surface of the corner key 50 (see FIG. 3). It is arranged on the spacer 10 side as one continuous adhesive material.

Next, the action of the spacer 10 of the first embodiment will be described.

For example, as shown in FIG. 2, when the glass plate 14 is pressure-bonded to the left side surface of the spacer 10, the primary sealing material 18 arranged on the side surface of the left elastic body 36 is formed between the glass plate 14 and the elastic body 36. It is plastically deformed while being pinched and crushed. As the glass plate 14 continues to be crimped, the front end portion 36B of the elastic body 36 is pushed by the primary sealing material 18 and elastically deformed toward the left side portion 30B with the base end portion 36A as a fulcrum. . When the glass plate 14 is completely crimped to the left side surface of the spacer 10 (see FIG. 1), the primary sealing material 18 fills a space having a substantially triangular cross section surrounded by the glass plate 14 and the elastic body 36. It is plastically deformed. The primary sealing material 18 adheres the glass plate 14 and the spacer 10 in this shape. That is, the primary sealing material 18 bonds the glass plate 14 and the spacer body 30 by plastically deforming the cross-sectional shape from a substantially circular state to a substantially triangular state. The primary sealing material 18 arranged on the elastic body 36 on the right side is similarly deformed by the press-fitting of the glass plate 16 to bond the glass plate 16 and the spacer 10 together.

When the amount of the primary sealing material 18 applied is smaller than the specified amount during the adhesion, the elastic body 36 is elastically deformed by an amount corresponding to the applied amount. That is, although the area of the substantially triangular shape is smaller than in the case of the prescribed amount, no gap is generated in the space surrounded by the glass plate 14 and the elastic body 36 . As a result, the problem of poor adhesion between the spacer 10 and the glass plates 14 and 16 can be resolved.

On the other hand, if the application amount of the primary sealing material 18 is larger than the specified amount, the elastic body 36 is elastically deformed by an amount corresponding to the application amount. area becomes larger. As a result, the problem that the primary sealing material 18 protrudes into the hollow layer 22 side of the multi-layer glass 12 can be resolved.

As described above, the spacer 10 of the first embodiment absorbs the error in the application amount of the primary sealant 18 by the amount of deformation of the elastic body 36, so that the application amount of the primary sealant 18 does not need to be strictly adjusted.

Therefore, according to the spacer 10 and the double glazing 12 of the first embodiment, the spacer main body 30, the pair of protrusions 32 and 34, and the protrusion 34 of at least one of the pair of protrusions 32 and 34 are connected to each other. and the elastic body 36 closing the recessed space 38 , the amount of the primary sealing material 18 applied to the spacer 10 can be easily adjusted.

Further, according to the spacer 10 of the first embodiment, since the elastic body 36 deforms toward the side surface portion 30B, the thickness of the primary sealing material 18 that contributes to adhesion is ensured, and the application amount of the primary sealing material 18 is thereby increased. There is also the advantage of being able to reduce Further, since the primary sealing material 18 is arranged on the elastic body 36 deformed toward the side surface portion 30B, the primary sealing material 18 follows the deformation of the glass plates 14 and 16 due to the expansion or contraction of the hollow layer 22 . This also has the advantage of improving the durability of the multi-layer glass 12 .

Next, the corner key 50 will be described with reference to FIG. FIG. 3 is a perspective view showing a state immediately before the ends of the two spacers 10, 10 are connected to the corner key 50. FIG.

The corner key 50 is a part forming a corner portion of the spacer 10, and is a part manufactured by resin molding, for example. The corner key 50 has a main body block 52 and two fitting portions 54, 54 extending from end faces 58A, 58B of the main body block 52 perpendicular to each other. By fitting the space portions 24 (see FIGS. 1 and 2) of the two adjacent spacers 10, 10 into these fitting portions 54, 54 as indicated by arrows, the two adjacent spacers 10, 10 are The ends are connected perpendicularly via a corner key 50 .

Further, the body block 52 is provided with a through hole 56 penetrating from the outer end face to the inner end face of the body block 52 . The through hole 56 is used as an injection hole for injecting an inert gas into the hollow layer 22 (see FIG. 1).

Side surface portions 60 on both sides of the body block 52 (only one side surface portion 60 is shown in FIG. 3) are provided with sealing material grooves 62 . The sealant groove 62 is a groove in which the primary sealant 18 (see FIG. 2) is arranged, and is formed as a curved groove that communicates the end face 58A and the end face 58B of the main block 52 . By forming the sealing material groove 62 in such a shape, the string-like primary sealing material 18 can be continuously arranged on two adjacent spacers 10 . Here, the sealant groove 62 has a longitudinal axis connecting the end face 58A and the end face 58B, and this longitudinal axis is referred to as the forming direction.

In addition, the cross-sectional shape in the direction perpendicular to the formation direction of the sealing material groove 62 is formed into a substantially triangular shape having the same cross-sectional shape and cross-sectional area as the primary sealing material 18 shown in FIG. That is, it is formed in the same shape as the elastic body 36 that is elastically deformed within the concave space 38 .

In addition, a recessed pocket 64 is provided at the bottom of the sealing material groove 62 to accommodate the surplus portion of the primary sealing material 18 . Even if the primary sealing material 18 is excessively placed in the sealing material groove 62 , the surplus portion is accommodated in the pocket 64 . This prevents the primary sealing material 18 from leaking from the sealing material groove 62 and protruding toward the hollow layer 22 side.

Next, operation of the corner key 50 will be described with reference to FIG. FIG. 4 is an explanatory diagram of a corner portion of the double glazing 12. As shown in FIG.

For example, when the glass plate 14 is pressure-bonded to the left side surface of the spacer 10, the primary sealant 18 arranged along the formation direction of the sealant groove 62 is pushed by the glass plate 14 and is used as the sealant. It deforms into a shape along the groove 62 . When the glass plate 14 is completely pressed against the left side surface of the spacer 10 (see FIG. 1), that is, when the glass plate 14 is completely pressed against the left side surface of the main block 52, the primary sealant 18 is The cross-sectional shape surrounded by the glass plate 14 and the sealing material groove 62 is plastically deformed so as to fill a substantially triangular space, and the glass plate 14 and the main block 52 are bonded in this shape. That is, the primary sealant 18 arranged in the sealant groove 62 is plastically deformed into a substantially triangular shape having the same external shape and cross-sectional area as the primary sealant 18 arranged in the elastic body 36 .

Therefore, according to the double glazing 12 of the first embodiment, since the corner key 50 is provided with the sealing material groove 62, the primary sealing material 18 when the double glazing 12 is configured as shown in FIG. , the cross-sectional shape of the primary seal member 18 is uniform over the entire circumference. This improves the adhesion of the glass plates 14 and 16 to the spacer 10 and corner key 50 .

The shape of the sealant groove 62 is not limited to the shape described above, and may be any shape that can accommodate the primary sealant 18 . As a result, it is possible to solve the design problem that the primary sealing material 18 protrudes toward the hollow layer 22 side.

Other embodiments of the spacer according to the present invention will be described below.

5A and 5B are cross-sectional views of main parts of the spacer 70 of the second embodiment. Specifically, FIG. 5A is a cross-sectional view of a main part showing a state immediately before the glass plate 14 is adhered to the left side surface of the spacer 70, and FIG. FIG. 3 is a cross-sectional view of essential parts showing a state in which a glass plate 14 is adhered; Here, in explaining the spacer 70, the members identical or similar to those of the spacer 10 shown in FIG. 2 are denoted by the same reference numerals.

A spacer 70 shown in FIGS. 5A and 5B has a projecting portion 72 and a projecting portion 74 having equal lengths in the in-plane direction of the inner surface portion 30A. It extends from the portion 74A toward the tip portion 72A of the projecting portion 72 . Specifically, the elastic body 76 is formed to have a uniform thickness, the proximal end portion 76A of the elastic body 76 is connected to the inner surface portion 74B of the distal end portion 74A, and the distal end portion 76B of the elastic body 76 is It is connected to the outer surface portion 72B of the tip portion 72A. Furthermore, the outer surface portion 76C of the elastic body 76 is arranged on the same plane as the side surface portion 74C of the tip portion 74A and the side surface portion 72C of the tip portion 72A. Here, the projecting portion 72 is an example of the first projecting portion of the present invention, and the projecting portion 74 is an example of the second projecting portion of the present invention. Moreover, although the elastic body 76 in this example is formed integrally with the projecting portions 72 and 74, it may be formed integrally with at least one of the projecting portions 72 and 74. FIG.

Next, the action of the spacer 70 of the second embodiment will be described.

For example, as shown in FIG. 5A, when the glass plate 14 is pressure-bonded to the left side surface of the spacer 70, the primary sealing material 18 arranged on the side surface of the left elastic body 76 is elastically bonded to the glass plate 14. It is plastically deformed while being pinched and crushed by the body 76 . As the glass plate 14 is continued to be crimped, the central portion 76D of the elastic body 76 is elastically deformed toward the left side portion 30B by being pushed by the primary sealant 18, as shown in FIG. 5B. go. When the glass plate 14 is completely crimped to the left side surface of the spacer 70, the primary sealing material 18 is plastically deformed so as to fill the space surrounded by the glass plate 14 and the elastic body 76 and having a substantially triangular cross section. , the glass plate 14 and the spacer 70 are adhered in this shape.

Here, for example, when the application amount of the primary sealing material 18 is less than the specified amount, the elastic body 76 is elastically deformed by an amount corresponding to the application amount. That is, although the area of the substantially triangular shape is smaller than in the case of the specified amount, no gap is generated in the space surrounded by the glass plate 14 and the elastic body 76 . As a result, the problem of poor adhesion between the spacer 70 and the glass plates 14 and 16 can be resolved.

On the other hand, when the application amount of the primary sealing material 18 is larger than the specified amount, the elastic body 76 is elastically deformed by an amount corresponding to the application amount. area becomes larger. As a result, the problem that the primary sealing material 18 protrudes into the hollow layer 22 side of the multi-layer glass 12 can be resolved.

Therefore, even with the spacer 70 of the second embodiment, errors in the application amount of the primary sealing material 18 are absorbed by the amount of deformation of the elastic body 76, so the application amount of the primary sealing material 18 to the spacer 70 is the same as the spacer 10. is easier to adjust.

6A and 6B are cross-sectional views of main parts of the spacer 80 of the third embodiment. Specifically, FIG. 6A is a cross-sectional view of a main part showing a state immediately before the glass plate 14 is adhered to the left side surface of the spacer 80, and FIG. FIG. 3 is a cross-sectional view of essential parts showing a state in which a glass plate 14 is adhered; Here, in describing the spacer 80, the same or similar members as those of the spacer 10 shown in FIG. 2 are assigned the same reference numerals.

A spacer 80 shown in FIGS. 6A and 6B has a projecting portion 82 and a projecting portion 84 having equal lengths in the in-plane direction of the inner surface portion 30A. It extends from the portion 84A toward the tip portion 82A of the protruding portion 82 . Specifically, the elastic body 86 is formed to have a uniform thickness, the proximal end 86A of the elastic body 86 is connected to the side surface 84B of the distal end 84A, and the distal end 86B of the elastic body 86 is It is connected to the side surface portion 82B of the tip portion 82A. Here, the projecting portion 82 is an example of the first projecting portion of the present invention, and the projecting portion 84 is an example of the second projecting portion of the present invention. Moreover, although the elastic body 86 of this example is formed integrally with the projecting portions 82 and 84, it may be formed integrally with at least one of the projecting portions 82 and 84. FIG.

Next, the action of the spacer 80 of the third embodiment will be described.

For example, as shown in FIG. 6A, when the glass plate 14 is crimped to the left side surface of the spacer 80, the primary sealing material 18 arranged on the side surface of the left elastic body 86 is elastically bonded to the glass plate 14. It is plastically deformed while being pinched and crushed by the body 86 . As the glass plate 14 is continued to be crimped, as shown in FIG. 6B, the central portion 86C of the elastic body 86 is elastically deformed toward the left side portion 30B by being pushed by the primary sealing material 18. go. When the glass plate 14 is completely crimped to the left side surface of the spacer 80, the primary sealing material 18 is plastically deformed so as to fill the space surrounded by the glass plate 14 and the elastic body 86 and having a substantially triangular cross section. , the glass plate 14 and the spacer 80 are adhered in this shape.

Even with the spacer 80 configured in this way, the error in the application amount of the primary sealing material 18 is absorbed by the amount of deformation of the elastic body 86. Easy to adjust quantity.

7A and 7B are cross-sectional views of essential parts of the spacer 90 of the fourth embodiment. Specifically, FIG. 7A is a cross-sectional view of a main part showing a state immediately before the glass plate 14 is adhered to the left side surface of the spacer 90, and FIG. FIG. 3 is a cross-sectional view of essential parts showing a state in which a glass plate 14 is adhered; Here, in describing the spacer 90, the same or similar members as those of the spacer 10 shown in FIG. 2 are assigned the same reference numerals.

A spacer 90 shown in FIGS. 7A and 7B has a projecting portion 92 and a projecting portion 94 having the same length in the in-plane direction of the inner surface portion 30A. It extends from the portion 94A toward the tip portion 92A of the projecting portion 92 . Specifically, the elastic body 96 is formed to have a uniform thickness, the proximal end 96A of the elastic body 96 is connected to the inner surface 94B of the distal end 94A, and the distal end 96B of the elastic body 96 is It is connected to the outer surface portion 92B of the tip portion 92A. Further, the elastic body 96 is arranged so as to be shifted toward the side surface portion 30B with respect to the side surface portion 92C of the tip portion 92A and the side surface portion 94C of the tip portion 94A. Here, the projecting portion 92 is an example of the first projecting portion of the present invention, and the projecting portion 94 is an example of the second projecting portion of the present invention. In addition, the elastic body 96 in this example is formed integrally with the projecting portions 92 and 94, but it may be formed integrally with at least one of the projecting portions 92 and 94.

Even with the spacer 90 configured in this way, errors in the application amount of the primary sealing material 18 are absorbed by the amount of deformation of the elastic body 96. It becomes easy to adjust the coating amount of

8A and 8B are cross-sectional views of essential parts of the spacer 100 of the fifth embodiment. Specifically, FIG. 8A is a cross-sectional view of a main part showing a state immediately before the glass plate 14 is adhered to the left side surface of the spacer 100, and FIG. FIG. 3 is a cross-sectional view of essential parts showing a state in which a glass plate 14 is adhered; Here, in describing the spacer 100, the same or similar members as those of the spacer 10 shown in FIG. 2 are assigned the same reference numerals.

A spacer 100 shown in FIGS. 8A and 8B has a protruding portion 102 and a protruding portion 104 having the same length in the in-plane direction of the inner surface portion 30A. Elastic body 106 is integrally formed with projection 104 and extends from tip 104A of projection 104 toward tip 102A of projection 102 . More specifically, the elastic body 106 has a thick proximal end portion 106A connected to the inner surface portion 104B of the distal end portion 104A, and a thin distal end portion 106B of the elastic body 106 connected to the distal end portion 102A. is extended so as to be in contact with the outer surface portion 102B of the . Here, the projecting portion 102 is an example of the first projecting portion of the present invention, and the projecting portion 104 is an example of the second projecting portion of the present invention. Moreover, although the elastic body 106 in this example is formed integrally with the protruding portion 104 , it may be formed integrally with at least one of the protruding portions 102 and 104 .

Even with the spacer 100 configured in this way, errors in the application amount of the primary sealing material 18 are absorbed by the amount of deformation of the elastic body 106. Adjustment of the application amount of the material 18 is facilitated.

9A and 9B are cross-sectional views of essential parts of the spacer 110 of the sixth embodiment. Specifically, FIG. 9A is a cross-sectional view of a main part showing a state immediately before the glass plate 14 is adhered to the left side surface of the spacer 110, and FIG. FIG. 3 is a cross-sectional view of essential parts showing a state in which a glass plate 14 is adhered; Here, in describing the spacer 110, the same or similar members as those of the spacer 10 shown in FIG. 2 are assigned the same reference numerals.

A spacer 110 shown in FIGS. 9A and 9B has a protruding portion 112 and a protruding portion 114 having the same length in the in-plane direction of the inner surface portion 30A. Elastic body 116 is integrally formed with projection 112 and extends from tip 112A of projection 112 toward tip 114A of projection 114 . More specifically, the elastic body 116 has a thick proximal end portion 116A connected to the outer surface portion 112B of the distal end portion 112A, and a thin distal end portion 116B of the elastic body 116 connected to the distal end portion 114A. is extended so as to be in contact with the inner surface portion 114B of the . Here, the projecting portion 112 is an example of the first projecting portion of the present invention, and the projecting portion 114 is an example of the second projecting portion of the present invention. Moreover, although the elastic body 116 in this example is formed integrally with the protruding portion 112 , it may be formed integrally with at least one of the protruding portions 112 and 114 .

Even with the spacer 110 configured in this way, errors in the application amount of the primary sealing material 18 are absorbed by the amount of deformation of the elastic body 116. Adjustment of the application amount of the primary sealing material 18 is facilitated.

10A and 10B are cross-sectional views of main parts of the spacer 120 of the seventh embodiment. Specifically, FIG. 10A is a cross-sectional view of the main part showing the state immediately before the glass plate 14 is bonded to the left side surface of the spacer 120, and FIG. FIG. 3 is a cross-sectional view of essential parts showing a state in which a glass plate 14 is adhered; Here, in explaining the spacer 120, the members identical or similar to those of the spacer 10 shown in FIG. 2 are denoted by the same reference numerals.

A spacer 120 shown in FIGS. 10A and 10B has a protruding portion 122 and a protruding portion 124 having the same length in the in-plane direction of the inner surface portion 30A. The elastic body has an elastic body 126 provided at the tip 122A of the protrusion 122 and an elastic body 128 provided at the tip 124A of the protrusion 124 .

The elastic body 126 is integrally formed with the projecting portion 122 and extends from the tip portion 122A toward the tip portion 124A. Specifically, the elastic body 126 has a shape in which the cross-sectional shape in the direction from the distal end portion 122A to the distal end portion 124A is tapered, and the thick base end portion 126A is connected to the outer surface portion 122B of the distal end portion 122A. It is

The elastic body 128 is integrally formed with the projecting portion 124 and extends from the tip portion 124A toward the tip portion 122A. Specifically, the elastic body 128 has a shape in which the cross-sectional shape in the direction from the distal end portion 124A to the distal end portion 122A is tapered, and the thick proximal end portion 128A is connected to the inner surface portion 124B of the distal end portion 124A. It is The elastic body 126 and the elastic body 128 are arranged so that their tip portions 126B and 128B, which are the top portions of each other, face each other. The tips 126B, 128B may be separate, touching, or connected to each other. Here, the projecting portion 122 is an example of the first projecting portion of the present invention, and the projecting portion 124 is an example of the second projecting portion of the present invention. The elastic body 126 is an example of the first elastic body of the invention, and the elastic body 128 is an example of the second elastic body of the invention.

Next, the action of the spacer 120 of the seventh embodiment will be described.

For example, as shown in FIG. 10A, when the glass plate 14 is pressure-bonded to the left side surface of the spacer 120, the primary sealing material 18 arranged on the side surface of the left elastic bodies 126 and 128 is , and the elastic bodies 126 and 128 and are crushed while being plastically deformed. As the pressure bonding of the glass plate 14 is continued, the primary sealing material 18 pushes the distal end portion 126B of the elastic body 126 and the distal end portion 128B of the elastic body 128 with the proximal end portions 126A and 128A as fulcrums. It elastically deforms toward the left side surface portion 30B. Then, as shown in FIG. 10B, when the glass plate 14 is completely crimped to the left side surface of the spacer 120, the primary sealing material 18 has a cross-sectional shape surrounded by the glass plate 14 and the elastic bodies 126 and 128. It is plastically deformed so as to fill the triangular space, and the glass plate 14 and the spacer 120 are bonded in this shape.

Even with the spacer 120 configured in this way, errors in the application amount of the primary sealing material 18 are absorbed by the amount of deformation of the elastic bodies 126 and 128, so the spacers 10, 70, 80, 90, 100, and 110 are similar. In addition, it becomes easy to adjust the amount of the primary sealing material 18 applied to the spacer 120 . Although the elastic bodies 126 and 128 of this example have a narrow cross-sectional shape as described above, the elastic bodies 126 and 128 are not limited to this shape, and may have, for example, a flat plate shape with a uniform thickness.

FIG. 11 is a cross-sectional view showing a modification of spacer 130 having two spaces 24, 24. As shown in FIG.

The spacer 130 shown in FIG. 11 is applied to double glazing having a multi-layer structure including three or more glass plates. Specifically, the glass plates 14 , 16 indicated by the chain double-dashed lines are adhered to the spacer 130 by the primary sealing materials 18 , 18 arranged on the elastic bodies 36 , 36 . The inner surface portion of the spacer 130 is provided with a concave holding portion 134 that holds an end portion of the intermediate glass plate 132 indicated by a two-dot chain line. A base member 136 supporting the edge of the intermediate glass plate 132 is arranged at the bottom of the holding portion 134 . The base member 136 is made of a soft material such as a cushioning material or elastic material. Both walls of the holding portion 134 are provided with lip portions 138 , 138 for sandwiching the peripheral portion of the intermediate glass plate 132 . The lips 138 , 138 are also made of a soft material and molded integrally with the spacer 130 .

The spacer 130 shown in FIG. 11 is also assembled into a frame shape by corner keys (not shown) having a pair of fitting portions that are fitted into the spaces 24 , 24 . Moreover, a spacer having a plurality of holding portions 134 can be applied to double glazing having four or more glass plates. In other words, the spacer of the present invention can be employed in double glazing comprising three or more glass plates.

12A and 12B are cross-sectional views of main parts of the spacer 140 of the eighth embodiment. Specifically, FIG. 12A is a cross-sectional view of the main part showing a state immediately before the glass plate 14 is adhered to the left side surface of the spacer 140, and FIG. FIG. 3 is a cross-sectional view of essential parts showing a state in which a glass plate 14 is adhered; Here, in describing the spacer 140, the same or similar members as those of the spacer 10 shown in FIG. 2 are assigned the same reference numerals.

A spacer 140 shown in FIGS. 12A and 12B has a pair of projections 32 and 34 having the same length in the in-plane direction of the inner surface portion 30A. An elastic body 142 is arranged in the concave space 38 between.

The elastic body 142 is a rod-shaped body having a longitudinal axis, and has a rectangular cross-sectional shape in a direction orthogonal to the longitudinal axis. The elastic body 142 is placed in the recessed space 38 in a state of being elastically deformed along the contour shape of the recessed space 38 by being fitted into the recessed space 38 . The elastic body 142 is composed of, for example, an elastic polyethylene foam.

Next, the action of the spacer 140 of the eighth embodiment will be described.

For example, as shown in FIG. 12A, when the glass plate 14 is crimped to the left side surface of the spacer 140, the primary sealing material 18 arranged on the side surface of the left elastic body 142 is elastically bonded to the glass plate 14. It is plastically deformed while being pinched and crushed by the body 142 . As the pressure bonding of the glass plate 14 is continued, the elastic body 142 is pushed by the primary sealing material 18 and elastically deformed toward the side surface portion 30B. Then, as shown in FIG. 12B, when the glass plate 14 is completely pressed against the left side surface of the spacer 140, the primary sealing material 18 fills the space surrounded by the elastically deformed elastic body 142 and the glass plate 14. , and the glass plate 14 and the spacer 140 are bonded in this shape.

As described above, even with the spacer 140 using the foam disposed in the recessed space 38 as the elastic body 142, the error in the application amount of the primary sealing material 18 is absorbed by the amount of deformation of the elastic body 142. Adjustment of the application amount of the primary sealing material 18 with respect to 140 is facilitated.

13A and 13B are cross-sectional views of essential parts of the spacer 150 of the ninth embodiment. Specifically, FIG. 13A is a cross-sectional view of the main part showing a state immediately before the glass plate 14 is bonded to the left side surface of the spacer 150, and FIG. FIG. 3 is a cross-sectional view of essential parts showing a state in which a glass plate 14 is adhered; Here, in describing the spacer 150, the same or similar members as those of the spacer 10 shown in FIG. 2 are assigned the same reference numerals.

A spacer 150 shown in FIGS. 13A and 13B has a pair of protrusions 32 and 34 having the same length in the in-plane direction of the inner surface portion 30A. An elastic body 152 is arranged in the concave space 38 between.

The elastic body 152 has a longitudinal axis and is formed of a tubular tube having a ring-shaped cross section in a direction orthogonal to the longitudinal axis. The elastic body 152 is placed in the recessed space 38 in a state of being elastically deformed along the contour shape of the recessed space 38 by being fitted into the recessed space 38 . This elastic body 152 is made of rubber as an example.

Next, the action of the spacer 150 of the ninth embodiment will be described.

For example, as shown in FIG. 13A, when the glass plate 14 is pressed against the left side surface of the spacer 150, the primary sealing material 18 arranged on the side surface of the left elastic body 152 is elastically bonded to the glass plate 14. It is plastically deformed while being pinched and crushed by the body 152 . As the glass plate 14 is continued to be pressure-bonded, the elastic body 152 is pushed by the primary sealing material 18 and elastically deformed toward the side surface portion 30B. Then, as shown in FIG. 13B, when the glass plate 14 is completely pressed against the left side surface of the spacer 150, the primary sealing material 18 fills the space surrounded by the elastically deformed elastic body 152 and the glass plate 14. , and the glass plate 14 and the spacer 150 are bonded in this shape.

Even in the case of the spacer 150 that uses the tube disposed in the concave space 38 as the elastic body 152 in this way, the error in the application amount of the primary sealant 18 is absorbed by the amount of deformation of the elastic body 152. , the amount of the primary sealant 18 applied to the spacer 150 can be easily adjusted.

Next, the multi-layer glass 160 of the tenth embodiment will be described with reference to FIGS. 14(A) and 14(B).

FIGS. 14A and 14B are cross-sectional views of the essential parts showing the configuration of the double glazing 160 of the tenth embodiment, and FIG. 14A shows the left side of the spacer 170 of the tenth embodiment. FIG. 14B is a cross-sectional view of the essential part showing the state immediately before the glass plate 14 is adhered to the spacer 170, and FIG. be. Here, in describing the double glazing 160, members that are the same as or similar to those of the double glazing 12 shown in FIG.

The multi-layered glass 160 shown in FIGS. 14A and 14B has a frame shape formed by connecting a plurality of spacers 170 to each other through corner keys (not shown). At least two glass plates 14 (glass plate 16 not shown) are separated by spacers. The spacer 170 and the glass plate 14 are bonded together by the primary sealing material 18 arranged on the elastic body 174 of the spacer main body 172 . The elastic body 174 is integrally formed with one 180 of the protrusions 178 and 180 forming the spacer 170 and extends from the tip of the one protrusion 180 toward the tip of the other protrusion 178 . More specifically, the elastic body 174 has a thick proximal end connected to the outer surface of the distal end of one protrusion 180 , and a thin distal end of the elastic body 174 connected to the other protrusion 180 . is extended so that there is a gap between the tip of the projecting portion and the inner surface portion of the projecting portion.

In the multi-layer glass 160 shown in FIGS. 14A and 14B, a fin-like member is used as the elastic body 174, but the elastic body 174 is not limited to this. It may be the foam shown in B) or the tube shown in FIGS. 13(A) and 13(B).

Further, the multi-layer glass 160 is provided with a dam member 176 between the spacer 170 and the glass plate 14 to prevent the primary sealing material 18 from protruding outside the spacer 170 .

This dam member 176 is disposed on the projecting portion 178 disposed outside the double glazing 160 of the projecting portion 178 and the projecting portion 180 that constitute the spacer 170 . The protruding portion 178 has a shorter protruding amount than the protruding portion 180 , and the dam member 176 is arranged along the side surface portion 178</b>A of the protruding portion 178 .

Specifically, the side surface portion 176A of the dam member 176 on the spacer 170 side is adhered to the side surface portion 178A, and the side surface portion 176B of the dam member 176 on the glass plate 14 side is adhered or pressure-bonded to the glass plate 14 . Also, the width dimension of the weir member 176 (the dimension between the side surface portion 176A and the side surface portion 176B) corresponds to the length difference between the projecting portion 178 and the projecting portion 180. As shown in FIG.

According to the multi-layer glass 160 having such a dam member 176 , the dam member 176 has the function of preventing protrusion, so the primary sealing material 18 is dammed by the dam member 176 . As a result, the primary sealing material 18 can be prevented from protruding outside the spacer 170, so the durability of the multi-layer glass 160 is improved.

The dam member 176 described in the present embodiment is an elongated member that is arranged along the side surface portion 178A of the projecting portion 178, and preferably has a rectangular cross-sectional shape from the viewpoint of the above-described protrusion prevention. may have other shapes, for example circular. The dam member 176 may be made of a structural sealing material such as a silicone-based sealing material or a polysulfide-based sealing material, or may be made of resin.

Although preferred embodiments of the spacer for double glazing and the double glazing according to the present invention have been described above, various improvements and modifications may be made without departing from the gist of the present invention. For example, the elastic body of the fin-shaped member, which is a constituent member of the present invention, is not limited to one made of a soft material, and may be made of a hard synthetic resin material in the form of a thin plate. It can be applied even if it is configured by a thin metal film. In other words, the elastic body, which is a constituent member of the present invention, can be applied as long as it is elastically deformed into the concave space when pushed by the spacer sealing material. Further, the spacer main body and the pair of projections, which are the constituent members of the present invention, are not limited to being made of synthetic resin, and may be made of metal such as aluminum.

DESCRIPTION OF SYMBOLS 10... Spacer 12... Multi-layer glass 14... Glass plate 16... Glass plate 18... Primary sealing material 20... Secondary sealing material 22... Hollow layer 24... Spatial part 26... Drying agent 28... Through hole 30 Spacer body 32 Projection 34 Projection 36 Elastic body 38 Concave space 40 Moisture permeation prevention film 50 Corner key 52 Body block 54 Fitting part , 56... Through hole 60... Side portion 62... Sealing material groove 64... Pocket 70... Spacer 72... Protruding part 74... Protruding part 76... Elastic body 80... Spacer 82... Protruding part 84... Protruding part 86... Elastic body 90... Spacer 92... Protruding part 94... Protruding part 96... Elastic body 100... Spacer 102... Protruding part 104... Protruding part 106... Elastic body 110... SPACER 112 PROJECT 114 PROJECT 116 ELASTIC BODY 120 SPACER 122 PROJECT 124 PROJECT 126 ELASTIC BODY 128 ELASTIC BODY 130 SPACER 132 INTERMEDIATE GLASS PLATE , 134... Holding part 136... Base member 138... Lip part 140... Spacer 142... Elastic body 150... Spacer 152... Elastic body 160... Multi-layer glass 170... Spacer 172... Spacer main body 174 ... elastic body, 176 ... weir member, 178 ... protrusion, 180 ... protrusion In addition, Japanese Patent Application No. 2019-112034 filed on June 17, 2019 and Japan filed on December 2, 2019 The entire contents of the specification, claims, drawings and abstract of Japanese Patent Application No. 2019-218044 are hereby incorporated into the disclosure of the specification of the present invention.

Claims (11)

A double glazing spacer having a longitudinal axis and spaced apart at least two glass panes, comprising:
a spacer body having an inner surface portion, a pair of side surface portions connected to both sides of the inner surface portion, and an outer surface portion of the pair of side surface portions connected to the opposite side of the inner surface portion;
a pair of projections projecting from the pair of side surfaces in the in-plane direction of the inner surface, the projection forming a recessed space with the side surfaces;
an elastic body disposed in the concave space;
has
The elastic body is connected to the distal end of at least one of the pair of projecting portions and extends toward the distal end of the other projecting portion. Spacer for glass. The pair of protrusions has a first protrusion having a short length in the in-plane direction and a second protrusion having a length longer than that of the first protrusion,
The elastic body extends from the tip of the first projection toward the tip of the second projection,
The spacer for double glazing according to claim 1 . The pair of protrusions has a first protrusion and a second protrusion having equal lengths in the in-plane direction,
The elastic body extends from the tip of the first projection toward the tip of the second projection,
The spacer for double glazing according to claim 1 . The elastic body has a shape in which the cross-sectional shape in the direction from the tip of the first projecting portion toward the tip of the second projecting portion is tapered.
The spacer for double glazing according to claim 2 or 3 . The elastic body has a first elastic body provided at the tip of the first protrusion and a second elastic body provided at the tip of the second protrusion,
The spacer for double glazing according to claim 3 . the first elastic body has a shape in which a cross-sectional shape in a direction from the tip of the first projecting portion toward the tip of the second projecting portion is tapered;
the second elastic body has a shape in which the cross-sectional shape in the direction from the tip of the second projecting portion toward the tip of the first projecting portion is tapered,
The tops of the first elastic body and the second elastic body are arranged to face each other,
The spacer for double glazing according to claim 5 . The spacer body is provided with a space along the longitudinal axis,
The spacer for double glazing according to any one of claims 1 to 6 . A plurality of the space portions are provided,
The spacer for double glazing according to claim 7 . A frame-shaped spacer comprising a plurality of the double-layer glass spacers according to any one of claims 1 to 8 , wherein the ends of the multiple double-layer glass spacers are connected to each other via corner keys. at least two glass plates are spaced apart by the spacer body, and the spacer body and the two glass plates are bonded to each other by a spacer sealing material disposed on the elastic body of the spacer body,
The corner key is provided with a sealing material groove in which the spacer sealing material is arranged,
double glazing. The sealing material groove is formed in a shape equal to the shape of the spacer sealing material that is elastically deformed in the concave space of the spacer main body,
Double glazing according to claim 9 . A frame-shaped spacer comprising a plurality of the double-layer glass spacers according to any one of claims 1 to 8 , wherein the ends of the multiple double-layer glass spacers are connected to each other via corner keys. at least two glass plates are spaced apart by the spacer body, and the spacer body and the two glass plates are bonded to each other by a spacer sealing material disposed on the elastic body of the spacer body,
A weir member is provided between the spacer main body and the two glass plates to prevent the spacer sealing material from protruding outward from the double-layer glass spacer,
The dam member is provided on the projecting portion arranged outside the two glass plates, and is bonded or crimped to the glass plates,
double glazing.

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