JP6654131B2 - Multilayer glass - Google Patents

Description

  The present invention relates to a multilayer glass in which a film is disposed between a plurality of glass plates.

  Two glass plates are juxtaposed at a fixed interval, and in a double-layered glass whose periphery is sealed, a metal-deposited transparent film (deposited film) is interposed as an intermediate partition plate, and the deposited film is made of a steel material. A double glazing sandwiched and fixed by a frame spacer is known (see Patent Document 1).

JP-A-59-35048

  However, in the case of the above-mentioned double-layer glass, a special peripheral frame spacer for bonding and fixing the deposited film is required, and a special adhesive such as a double-sided adhesive tape or an epoxy resin is required. For this reason, there is a problem that the process is significantly different from a normal manufacturing process of a double glazing and the productivity is also reduced.

  An object of the present invention is to provide a multi-layer glass capable of preventing a decrease in productivity when producing a multi-layer glass in which a film is arranged between two glass plates.

  The multilayer glass of the present invention, at least two glass plates disposed at intervals, a film disposed between the glass plates, a spacer disposed between the film and the glass plate, A sealant filled on the outer peripheral side of the spacer, a locking portion is formed on the outer peripheral portion of the film, the locking portion has a locking space recessed from at least the surface of the film, It is characterized in that the sealing agent has entered the locking space.

  According to the present invention, the locking portion formed on the film has a locking space formed by a hole or a concave portion recessed from the surface of the film, and the sealant filled on the outer peripheral side of the spacer is formed by the sealing agent. Enter the stop space. Thereby, an anchor effect is generated between the engaging portion of the film and the sealant, so that the outer peripheral portion of the film can be firmly fixed. Further, since the outer peripheral portion of the film is fixed using the anchor effect, a dedicated peripheral frame spacer and a dedicated adhesive can be eliminated. Therefore, the multilayer glass of the present invention can utilize spacers and sealants of the same material as those used for ordinary double-glazed glass, and can be manufactured in the same process as the normal double-glazed glass manufacturing process. Can be prevented from decreasing.

  In the multilayer glass according to the aspect of the invention, it is preferable that the locking portion includes a plurality of holes formed in an outer peripheral portion of the film.

According to the present invention, the sealing agent enters into the hole formed in the outer peripheral portion of the film, and the sealing agent is connected to the sealing agent on both sides of the hole. Can be fixed.
In addition, since the locking portion is formed by a hole formed in the outer peripheral portion of the film, the locking portion can be easily manufactured by punching, laser processing or the like, and productivity can be improved.

  In the multilayer glass of the present invention, it is preferable that the locking portion is constituted by a plurality of uneven portions formed on an outer peripheral portion of the film.

According to the present invention, since the locking portion is formed by the uneven portion formed on the outer peripheral portion of the film, the locking portion can be easily manufactured by press working, and the productivity can be improved.
In addition, a locking space can be formed by the concave portion of the concave and convex portion, and an anchor effect can be generated by the sealing agent entering the concave portion. Further, since the convex portion of the concave / convex portion also enters the sealant, an anchor effect can be generated even in the convex portion. Therefore, the outer peripheral portion of the film can be firmly fixed.

  In the multilayer glass according to the aspect of the invention, it is preferable that the locking portion includes a plurality of cut-and-raised portions formed on an outer peripheral portion of the film.

According to the present invention, since the locking portion is formed by the cut and raised portion formed on the outer peripheral portion of the film, the locking portion can be easily manufactured by cutting and raising the film, and the productivity can be improved.
Further, a locking space can be formed by a hole formed in the film by the cut-and-raised portion, and an anchor effect can be generated by the sealing agent entering the hole. Further, since the projecting portion of the cut-and-raised portion enters the sealing agent, an anchoring effect can also be generated at the projecting portion. Therefore, the outer peripheral portion of the film can be firmly fixed.

  In the multilayer glass according to the aspect of the invention, the two glass plates include a first glass plate and a second glass plate disposed closer to an indoor side than the first glass plate, and the spacer includes the first glass plate. A first spacer disposed between a plate and the film, and a second spacer disposed between the film and the second glass plate, wherein the first spacer has an upper end portion of the first glass plate and the second spacer. A first upper spacer disposed between upper ends of the film; a first lower spacer disposed between a lower end of the first glass plate and a lower end of the film; Is preferably not less than the expected size of the first lower spacer.

  According to the present invention, since the expected size of the first upper spacer is set to be equal to or greater than the expected size of the first lower spacer, the film is placed in a state parallel to each glass plate (the first upper spacer and the first lower spacer have the same expected size). In addition to the case where the film is disposed, the film can be disposed in an inclined state such that the upper end of the film is located on the indoor side and the lower end is located on the outdoor side. This inclination angle can be adjusted by changing the difference between the expected dimensions of the first upper spacer and the first lower spacer. Therefore, the inclination angle of the film can be set according to the incident angle of sunlight, specifically, the latitude of the place where the multilayer glass is installed. For this reason, in windows incorporating multi-layer glass, the angle of inclination of the film is set according to the incident angle of sunlight, and a low-E metal film film with a metal film formed on the surface of a resin film is used as the film. In addition, it is possible to effectively prevent sunlight from entering, and to improve heat insulation.

  In the multilayer glass of the present invention, the two glass plates include a first glass plate and a second glass plate disposed closer to the indoor side than the first glass plate, and an upper end of the film is a second glass plate. A first upper spacer disposed between an upper end of the first glass plate and an upper end of the film, wherein the lower end of the film is adhered to a first glass plate; Preferably, a second lower spacer is provided between the lower end of the film and the lower end of the second glass plate.

According to the present invention, the film can be disposed in an inclined state such that the upper end side is located on the indoor side and the lower end side is located on the outdoor side. Therefore, the incident angle of sunlight on the film surface can be made closer to 90 ° as compared with the case where the film is arranged in parallel with each glass plate. Therefore, in a window incorporating a multilayer glass, the use of a Low-E metal film film or the like can effectively prevent sunlight from entering, and can improve heat shielding properties and the like.
Further, since the upper end of the film is adhered to the second glass plate and the lower end of the film is adhered to the first glass plate, it is not necessary to provide a spacer at these portions. For this reason, the number of spacers can be reduced, and the cost can be reduced.

  ADVANTAGE OF THE INVENTION According to this invention, the multilayer glass which can prevent the fall of productivity at the time of manufacturing the double glazing which arrange | positions a film between two glass plates can be provided.

It is a longitudinal section showing the multilayer glass of a 1st embodiment of the present invention. FIG. 2 is a diagram illustrating a film used in the first embodiment. It is a sectional perspective view showing the multilayer glass of a 1st embodiment. It is a longitudinal section showing the multilayer glass of a 2nd embodiment. It is a longitudinal section showing the multilayer glass of a 3rd embodiment. It is a figure showing the film of a 4th embodiment, (A) is a perspective view of a film corner, and (B) is a sectional view. It is a figure showing the film of a 5th embodiment, (A) is a perspective view of a film corner, and (B) is a sectional view.

[First Embodiment]
Hereinafter, the multilayer glass according to the first embodiment of the present invention will be described with reference to FIGS.
The multilayer glass of the present embodiment is a multilayer glass 1 incorporated in a window sash or the like. As shown in the cross-sectional view of FIG. 1, the multilayer glass 1 includes a first glass plate 2 arranged on the outdoor side, The apparatus includes a second glass plate 3 disposed on the indoor side and a film 4 disposed between the glass plates 2 and 3.

The first glass plate 2 and the second glass plate 3 are made of various types of general glass used for window sashes such as float glass.
The two glass plates 2 and 3 are arranged in parallel at a predetermined interval (for example, about 6 to 16 mm), and the film 4 is arranged at an intermediate position between the glass plates 2 and 3.

The film 4 is composed of a Low-E metal film film in which a metal film is formed on a surface of a resin film manufactured by PET (polyethylene terephthalate) or PMMA (polymethyl methacrylate, acrylic resin) by sputtering or the like. I have.
As shown in FIG. 2, a plurality of holes 41 are formed in the outer peripheral portion of the film 4 along the outer peripheral edge. A plurality of holes 41 are formed along the upper edge, the lower edge, and the left and right side edges of the film 4, but are smaller than the size of the film 4, so the corners of the film 4 are enlarged in FIG. It is shown in FIG.
The hole 41 is a circular hole having a plane circular shape formed by punching processing or laser processing or the like on the film 4. Since the hole 41 is formed penetrating the film 4, the hole 41 forms a locking space that is recessed from the surface (the outdoor surface 40 </ b> A and the indoor surface 40 </ b> B) of the film 4. Therefore, in the present embodiment, the locking portion is formed by the hole 41.

A first spacer 5 is arranged between the first glass plate 2 and the film 4, and a second spacer 6 is arranged between the second glass plate 3 and the film 4.
The first spacer 5 is a resin spacer, and as shown in FIGS. 2 and 3, a first upper spacer 51 disposed between the upper ends of the first glass plate 2 and the film 4, and a first glass plate. A first lower spacer 52 disposed between the lower ends of the second glass 2 and the film 4; and a first vertical spacer 53 disposed between the left and right side ends of the first glass plate 2 and the film 4.
The second spacer 6 is a resin spacer made of the same material as the first spacer 5, and as shown in FIGS. 2 and 3, a second upper spacer disposed between the upper ends of the second glass plate 3 and the film 4. A spacer 61, a second lower spacer 62 disposed between the lower ends of the second glass plate 3 and the film 4, and a second vertical spacer disposed between the left and right side ends of the second glass plate 3 and the film 4. And a spacer 63.

A primary seal 7 is provided between each of the spacers 5 and 6 and each of the glass plates 2 and 3 and the film 4. The primary seal 7 is provided to prevent water from entering a space (hollow layer) surrounded by the glass plates 2 and 3 and the spacers 5 and 6. The primary seal 7 is made of a multi-layer glass and is made of butyl rubber or the like which has been conventionally used as a primary seal.
In FIG. 1, the primary seal 7 exposed on the cross section of the double-glazed glass 1, that is, between the first glass plate 2 and the first upper spacer 51 and the first lower spacer 52, and between the second glass plate 3 The cross section of the primary seal 7 between the second upper spacer 61 and the second lower spacer 62 and between the film 4 and each of the spacers 51, 52, 61, 62 is enlarged to be larger than the actual thickness dimension. Is shown. A primary seal is also provided between the first vertical spacer 53 and the second vertical spacer 63, and each of the glass plates 2, 3 and the film 4, but is not shown.

  A secondary seal 8 is filled between the first glass plate 2 and the second glass plate 3 and on the outer peripheral side of the first spacer 5 and the second spacer 6. The secondary seal 8 bonds the first glass plate 2 and the second glass plate 3 together, and is made of a double-layered glass such as polysulfide which has been conventionally used as a secondary seal.

Since the hole 41 of the film 4 is arranged on the outer peripheral side of the first spacer 5 and the second spacer 6, the secondary seal 8 enters the hole 41. Since the hole 41 is a through hole, the secondary seal 8 in the hole 41 is continuous with the secondary seals 8 on both sides of the film 4.
Since the secondary seal 8 as an adhesive enters the hole 41, an anchor effect is generated. Therefore, in the present embodiment, the sealant is formed by the secondary seal 8 that enters the hole 41 that is the locking portion of the film 4.

[Manufacturing process of double glazing]
Next, an example of a manufacturing process of the double glazing 1 will be described.
The first glass plate 2 is installed, and the first spacer 5 on which the primary seal 7 is applied is arranged on the periphery of the first glass plate 2. Next, the film 4 is attached to the indoor surface of the first spacer 5. The film 4 is arranged so as to protrude from the peripheral edge of the first spacer 5.
Next, the second spacer 6 on which the primary seal 7 is applied is arranged on the periphery of the indoor surface of the film 4. Next, the second glass plate 3 is arranged on the indoor surface of the second spacer 6.
The hollow layers of the first glass plate 2 and the second glass plate 3 are filled with dry air, argon gas, krypton gas, or the like.

Next, when the peripheral edge of the film 4 protrudes more outward than the glass plates 2 and 3, the peripheral edge of the film 4 is cut in accordance with the position of the outer peripheral surface of the glass plates 2 and 3. Then, a secondary seal 8 is filled between the glass plates 2 and 3 and on the outer peripheral side of each of the spacers 5 and 6. Therefore, before the secondary seal 8 is hardened, the secondary seal 8 also enters the hole 41.
When heat is applied to the double-glazed glass 1 after the hardening of the secondary seal 8, the film 4 shrinks. The peripheral edge of the film 4 is firmly fixed by an anchor effect caused by the secondary seal 8 entering the hole 41 and hardening in addition to the adhesive force by the secondary seal 8, so that when the film 4 shrinks, The film 4 is stretched without wrinkles.
As described above, the double-glazed glass 1 in which the film 4 is provided in the hollow layer can be manufactured.

[Effects of First Embodiment]
According to the first embodiment, the following effects can be obtained.
A hole 41 serving as a locking portion is formed in the peripheral portion of the film 4, and the secondary seal 8, which is a sealant, enters the hole 41 and is hardened to generate an anchor effect. The film 4 can be firmly fixed as compared with the case where the film is adhered by the secondary seal 8 without providing the hole 41 in the second embodiment.
For this reason, a special peripheral frame spacer and a special adhesive can be eliminated, and the spacers 5 and 6 and the primary seal 7 and the secondary seal 8 made of the same material as those used for ordinary double glazing can be used. Therefore, it can be manufactured in the same process as the manufacturing process of a normal double glazing, and the productivity and quality of the double glazing 1 can be stabilized and the cost can be suppressed.

The hole 41 serving as the locking portion of the film 4 can be easily formed by punching or the like. Further, since the hole 41 penetrates through the film 4, the secondary seal 8 entering the hole 41 can be continuous with the secondary seals 8 on both sides of the film 4. For this reason, compared with the case where the secondary seal 8 is filled in the concave portion that does not penetrate the film 4, the force for locking the film 4 can be increased, and the anchor effect can be improved.
Further, since the hole 41 is a circular hole having a plane circular shape, the anchor effect can be similarly exerted regardless of the direction in which the hole 41 is pulled. Therefore, the hole 41 having the same shape may be formed in any part of the peripheral edge of the film 4, and the hole can be easily formed without considering the direction of the film 4.

In the double glazing 1, the film 4 is arranged in parallel with each of the glass plates 2, 3 and at an intermediate position between the glass plates 2, 3. For this reason, the spacers 51 to 53 and 61 to 63 can use resin spacers having the same sectional shape and sectional size.
Therefore, each of the spacers 51 to 53 and 61 to 63 can be easily manufactured by cutting a long spacer material manufactured by extrusion or the like in accordance with the length of each side of the glass plates 2 and 3. can do.

  Since the double-glazed glass 1 has the film 4 on which the metal film is formed disposed between the glass plates 2 and 3, the heat shielding effect and the heat insulating effect can be improved.

[Second embodiment]
Next, a double glazing 1A according to a second embodiment of the present invention will be described with reference to FIG.
The multi-layer glass 1A is different from the multi-layer glass 1 of the first embodiment in that the film 4 is arranged obliquely with respect to the glass plates 2 and 3, and other configurations are the same. Will be described.

In the double glazing 1A, the upper end of the film 4 is located closer to the second glass plate 3 than the first glass plate 2, and the lower end of the film 4 is located closer to the first glass plate than the second glass plate 3. It is arranged at a position close to 2. For this reason, the film 4 is inclined so as to be located outdoors as going from the upper end to the lower end.
As in the first embodiment, the film 4 has a plurality of holes 41 serving as locking portions formed on the outer peripheral edge.

In the double glazing 1A, a first spacer 5A and a second spacer 6A different from those of the first embodiment are used to arrange the film 4 at an angle.
The first spacer 5A includes a first upper spacer 51A, a first lower spacer 52A, and a pair of left and right first vertical spacers 53A. The first upper spacer 51A has a dimension L1 in the prospective direction (dimension from the first glass plate 2 toward the second glass plate 3) L1 larger than the dimension L2 in the prospective direction of the first lower spacer 52A. In the present embodiment, the dimension L1 is larger and the dimension L2 is smaller than half the expected dimension between the first glass plate 2 and the second glass plate 3.

The first vertical spacer 53A is formed such that the indoor surface facing the film 4 is arranged along the outdoor surface of the film 4. For this reason, as shown in FIG. 4, when the first vertical spacer 53A is viewed from the hollow layer, the upper end of the first vertical spacer 53A (the portion overlapping with the first upper spacer 51A) and the first vertical spacer 53A The indoor surface at the lower end (the portion overlapping with the first lower spacer 52A) is a surface parallel to the second glass plate 3 and the film 4.
Further, the indoor surface between the upper end and the lower end of the first vertical spacer 53A is an inclined surface along the inclined film 4.
The angle of inclination of the film 4 is determined by the height between the first upper spacer 51A and the first lower spacer 52A (set in accordance with the vertical dimension of the multilayer glass 1A), the first upper spacer 51A and the first upper spacer 51A. The difference is set by the difference (= L1−L2) between the expected dimensions of the lower spacer 52A.

The second spacer 6A includes a second upper spacer 61A, a second lower spacer 62A, and a pair of left and right second vertical spacers 63A.
As the second upper spacer 61A, the same as the first lower spacer 52A can be used. That is, the dimension of the second upper spacer 61A in the expected direction is L2.
As the second lower spacer 62A, the same one as the first upper spacer 51A can be used. That is, the dimension of the second lower spacer 62A in the expected direction is L1.
The second vertical spacer 63A is the same as the first vertical spacer 53A and is arranged upside down.
Therefore, the first spacer 5A and the second spacer 6A can be composed of three types of spacers.

In the double-glazed glass 1A, the first glass plate 2, the second glass plate 3, the primary seal 7, and the secondary seal 8 are the same as those of the double-glazed glass 1; In addition, the manufacturing process of the double-glazed glass 1A is the same as that of the first embodiment, and thus the description is omitted.
Although not shown, a primary seal 7 is applied to a contact surface between each of the first spacer 5A and the second spacer 6A and the film 4. A primary seal 7 (not shown) is also applied to the contact surfaces between the first spacer 5A and the second spacer 6A and the first glass plate 2 and the second glass plate 3. These prevent moisture from entering the hollow layer defined by the first glass plate 2, the second glass plate 3, the first spacer 5A, and the second spacer 6A.

[Effect of Second Embodiment]
According to such a second embodiment, since the secondary seal 8 enters the hole 41 of the film 4 and is hardened, the anchor effect is generated and the film 4 can be firmly fixed, and the same as in the first embodiment. The effect of the invention can be obtained.
Further, in the double-glazed glass 1A, since the film 4 is disposed obliquely inclined, the intersection angle of the film 4 with respect to the incident angle of sunlight is increased as compared with the double-glazed glass 1 of the first embodiment. , 90 °. Therefore, the heat shielding performance of the film 4 can be improved.
Furthermore, since the inclination angle of the film 4 can be set by changing the difference between the expected dimensions of the first upper spacer 51A and the first lower spacer 52A, the first spacer 5A and the second spacer according to the inclination angle of the film 4 can be set. By preparing 6A, the inclination angle of the film 4 can be adjusted according to the latitude of the place where the double glazing 1A is installed. In this case, the heat shielding performance of the film 4 can be further improved.

[Third embodiment]
Next, a double glazing 1B according to a third embodiment of the present invention will be described with reference to FIG.
The double glazing 1B is the same as the double glazing 1A of the second embodiment in that the film 4 is arranged obliquely, but the upper end and the lower end of the film 4 are placed between the first spacer and the second spacer. This is different from the double glazing 1A in that it is not disposed between the glass plates 2, 3 and the spacer. The other configuration is the same as that of the double-glazing unit 1A, and therefore, the different points will be mainly described.

In the double glazing 1B, a first spacer 5B and a second spacer 6B different from those of the first embodiment are used.
The first spacer 5B includes a first upper spacer 51B and a pair of left and right first vertical spacers 53B, but does not include a first lower spacer. The first upper spacer 51A has a dimension in the expected direction substantially equal to the dimension between the first glass plate 2 and the second glass plate 3.
Like the first vertical spacer 53A, the first vertical spacer 53B is formed such that the indoor surface facing the film 4 is arranged along the outdoor surface of the film 4.

  The second spacer 6B includes a second lower spacer 62B and a pair of left and right second vertical spacers 63B, but does not include the second upper spacer. As the second lower spacer 62B, the same as the first upper spacer 51B can be used. As the second vertical spacer 63B, the same one as the first vertical spacer 53B is arranged upside down. Therefore, the first spacer 5B and the second spacer 6B can be composed of two types of spacers.

In the multi-layer glass 1B, the first glass plate 2, the second glass plate 3, the primary seal 7, and the secondary seal 8 are the same as the multi-layer glass 1 and 1A, and the description is omitted. Further, the manufacturing process of the double glazing 1B is the same as that of the first and second embodiments, and the description is omitted.
Although not shown, a primary seal 7 is applied to the contact surface between each of the first spacers 5B and the second spacers 6B and the film 4. The primary seal 7 is also applied to the contact surfaces between the first spacer 5B, the second spacer 6B, the first glass plate 2, and the second glass plate 3. The primary seal 7 is also applied to the contact surface between the film 4 and the first glass plate 2 and the second glass plate 3. These prevent moisture from entering the hollow layer defined by the first glass plate 2, the second glass plate 3, the first spacer 5B, and the second spacer 6B.
Further, the secondary seal 8 filled between the first glass plate 2 and the second glass plate 3 is used to adhere the film 4 to the first glass plate 2 and the second glass plate 3 through the holes 41 of the film 4. The film 4 and the glass plates 2 and 3 are bonded together.

[Effects of Third Embodiment]
According to such a third embodiment, since the secondary seal 8 enters the hole 41 of the film 4 and is hardened, the anchor effect is generated, and the film 4 can be firmly fixed. The same operation and effect as described above can be obtained.
Further, in the multilayer glass 1B, since the film 4 is arranged obliquely, the intersection angle of the film 4 with respect to the incident angle of sunlight is increased as in the multilayer glass 1A of the second embodiment. , 90 °. Therefore, the heat shielding performance of the film 4 can be improved.
Further, there is no need to provide a first lower spacer or a second upper spacer, and the first spacer 5B and the second spacer 6B can be constituted by two types of spacers. For this reason, the type and number of spacers can be reduced, and the cost can be reduced.

[Fourth embodiment]
Next, a fourth embodiment of the present invention will be described with reference to FIG.
The fourth embodiment is different from the first embodiment in that the film used for the double-glazing units 1, 1 </ b> A, and 1 </ b> B is not the hole 41, but a film 4 </ b> C having an uneven portion.
As shown in FIG. 6, the film 4C has an uneven portion 43 projecting from the outdoor surface 40A of the film 4C and an uneven portion 44 projecting from the indoor surface 40B. The uneven portions 43 and 44 are alternately formed along the outer peripheral edge of the film 4C by press working or the like.
The concave / convex portions 43 and 44 are provided with concave portions 43A and 44A that form locking spaces that are concave from the outdoor surface 40A and the indoor surface 40B, and convex portions 43B and 44B that protrude from the respective surfaces 40A and 40B.

  As shown in FIG. 6B, the concave and convex portions 43 and 44 are arranged on the outer peripheral side of the first spacer 5 and the second spacer 6, and the secondary seal 8 is filled in these portions to form the concave portions 43A and 44A. The secondary seal 8 enters the secondary seal 8, and the convex portions 43B and 44B enter the secondary seal 8.

[Effect of Fourth Embodiment]
In the present embodiment, since the secondary seal 8 enters the concave portions 43A and 44A of the concave and convex portions 43 and 44, an anchor effect can be generated, and the film 4C can be firmly fixed by the secondary seal 8.
In addition, since the convex portions 43B and 44B of the concave and convex portions 43 and 44 bite into the secondary seal 8, the anchor effect can also be exerted on the convex portions 43B and 44B, and the film 4C can be firmly fixed.
Further, since the concave and convex portions 43 and 44 are alternately formed, the anchor effect can be exerted in a well-balanced manner in the peripheral portion of the film 4C.

  In addition, as the locking portion of the film 4C, only the uneven portion 43 may be formed, or only the uneven portion 44 may be formed. Further, the shape of the uneven portion is not limited to the triangular pyramid shape as shown in FIG. 6, but may be a quadrangular pyramid, a hemisphere, a cylinder, a quadrangular prism, or the like, and the shape is not limited.

[Fifth Embodiment]
Next, a fifth embodiment of the present invention will be described with reference to FIG.
The fifth embodiment is different from the fifth embodiment in that the locking portion of the film is formed by a cut-and-raised portion instead of the hole 41 and the uneven portions 43 and 44. As shown in FIG. 7, the locking portion of the film 4D is configured by a cut-and-raised portion 45 formed by press working or the like. The cut-and-raised portion 45 includes a triangular cut-and-raised piece 451 having two sides cut from the film 4D and the other side connected thereto, and a hole 452 formed after the cut-and-raised piece 451 is raised. The hole 452 functions as a locking space.

  As shown in FIG. 7 (B), the cut-and-raised portion 45 is arranged on the outer peripheral side of the first spacer 5 and the second spacer 6, and by filling this portion with the secondary seal 8, the cut-and-raised portion 45 is formed in the hole 452. The next seal 8 enters, and the cut-and-raised piece 451 enters the secondary seal 8.

[Effect of Fifth Embodiment]
In the present embodiment, since the secondary seal 8 enters the hole 452 of the cut-and-raised portion 45, an anchor effect can be generated, and the film 4D can be firmly fixed by the secondary seal 8.
Moreover, since the cut-and-raised piece 451 of the cut-and-raised portion 45 cuts into the secondary seal 8, the cut-and-raised piece 451 can also exert an anchor effect, and the film 4D can be firmly fixed.
Note that the shape of the cut-and-raised portion 45 is not limited to a plane triangular shape, but may be a square, a semicircle, or the like, and the shape is not limited.

[Modification]
The present invention is not limited to the configuration described in the above embodiment, and modifications within a range that can achieve the object of the present invention are included in the present invention.
For example, the locking portion formed on the film may be configured by a concave portion formed on the film surface by dimple processing or the like. Further, the locking portion may be constituted by a groove or a groove continuous along the outer peripheral edge of the film. The engaging portion may have any shape as long as the secondary seal 8 can enter and exhibit an anchoring effect.

  In the multi-layer glass 1, 1A, 1B, the position of the outer peripheral edge of the film 4 is located inside the outer peripheral end surfaces of the glass plates 2, 3 so that the outer peripheral end surface of the film 4 is not exposed to the outside from the secondary seal 8. May be set. In this case, since the film 4 does not come into contact with the outside air, infiltration of moisture can be further prevented.

The films 4, 4C and 4D are not limited to those in which a metal film is formed on the surface of a resin film, and various films such as a heat insulating film having a heat absorbing effect and a scattering prevention film can be used. May be combined.
Further, the multilayer glass may be a multilayer glass obtained by combining three or more glass plates. When three or more glass plates are combined, various films may be arranged between the glass plates, or a film may be arranged only between any of the glass plates.

  1, 1A, 1B: multilayer glass which is a multilayer glass, 2 ... first glass plate, 3 ... second glass plate, 4, 4C, 4D ... film, 5, 5A, 5B ... first spacer, 6, 6A, 6B: second spacer, 7: primary seal, 8: secondary seal, 40A: outdoor surface, 40B: indoor surface, 41: hole as a locking portion, 43, 44: concave and convex portion as a locking portion, 43A , 44A: concave portions as locking spaces, 43B, 44B: convex portions, 45: cut-and-raised portions, 51, 51A, 51B: first upper spacer, 52, 52A: first lower spacer, 53, 53A, 53B: first 1 vertical spacer, 61, 61A: second upper spacer, 62, 62A, 62B: second lower spacer, 63, 63A, 63B: second vertical spacer, 451: cut-and-raised piece, 452: hole as a locking space .

Claims (6)

At least two glass plates spaced apart;
A film disposed between the glass plates,
A spacer disposed between the film and the glass plate,
A sealant filled on the outer peripheral side of the spacer,
A locking portion is formed on an outer peripheral portion of the film,
The locking portion has a locking space recessed from at least the surface of the film,
The multilayer glass, wherein the sealing agent has entered the locking space. The multilayer glass according to claim 1,
The said locking part is comprised with the hole formed in the outer peripheral part of the said film by two or more, The multilayer glass characterized by the above-mentioned. The multilayer glass according to claim 1,
The multi-layer glass according to claim 1, wherein the locking portion is constituted by a plurality of uneven portions formed on an outer peripheral portion of the film. The multilayer glass according to claim 1,
The said locking part is comprised by the cut-and-raised part formed in the outer periphery part of the said film. The multilayer glass characterized by the above-mentioned. In the multilayer glass according to any one of claims 1 to 4,
The two glass plates include a first glass plate and a second glass plate disposed closer to the indoor side than the first glass plate,
The spacer includes a first spacer disposed between the first glass plate and the film, and a second spacer disposed between the film and the second glass plate,
The first spacer is disposed between an upper end of the first glass plate and an upper end of the film, and is disposed between a lower end of the first glass plate and a lower end of the film. A first lower spacer,
The expected size of the first upper spacer is greater than or equal to the expected size of the first lower spacer. In the multilayer glass according to any one of claims 1 to 4,
The two glass plates include a first glass plate and a second glass plate disposed closer to the indoor side than the first glass plate,
The upper end of the film is adhered to a second glass plate, the lower end of the film is adhered to a first glass plate,
A first upper spacer disposed between an upper end of the first glass plate and an upper end of the film; and a second upper spacer disposed between a lower end of the film and a lower end of the second glass plate. A multilayer glass comprising: a lower spacer.

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