JP2015174810A - Multiple glass - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multiple glass capable of both blocking direct sunlight and allowing skylight to permeate.SOLUTION: A multiple glass 10 includes a first glass plate 11 and a second glass plate 12 arranged oppositely with a space between them, and a prism panel structure 20 disposed between the first glass plate 11 and the second glass plate 12. The prism panel structure 20 includes a first prism panel 21 having a first prism forming surface 21a on which a prism is formed and a second prism panel 22 having a second prism forming surface 22a on which a prism is formed, and a first holder 23 and a second holder 24 that hold the first prism panel 21 and the second prism panel 22 so that the first prism forming surface 21a and the second prism forming surface 22a are arranged oppositely, and members 25 for forming a gas layer between the prisms that form a gas layer between the first prism forming surface 21a and the second prism forming surface 22a.

Description

  The present invention relates to a multilayer glass.

  Conventionally, a double-glazed glass in which a space is provided between a pair of glass plates and dry air is sealed in the space is known. In the double-glazed glass, a heat insulating effect can be obtained while maintaining light transmittance by the pair of glass plates and the air layer between them (see, for example, Patent Document 1 for the double-glazed glass).

JP 2012-207458 A

  Multi-layer glass is often used in combination with blinds, curtains and the like for anti-glare and heat insulation. By using blinds and curtains, direct light from the sun can be blocked, but sky light is also blocked at the same time, so the indoor space tends to be dark.

  This invention is made | formed in view of such a condition, The objective is to provide the multilayer glass which can make the interruption | blocking of direct light and transmission of sky light compatible.

  In order to solve the above-mentioned problems, a multilayer glass according to an aspect of the present invention is provided between a first glass plate and a second glass plate, and a first glass plate and a second glass plate which are opposed to each other in a separated state. And a prism panel structure provided on the surface. The prism panel structure includes a first prism panel having a first prism forming surface, a second prism panel having a second prism forming surface, and a first prism forming surface and a second prism forming surface facing each other. A holding member that holds the first prism panel and the second prism panel; and an inter-prism gas layer forming member for forming a gas layer between the first prism forming surface and the second prism forming surface.

  The inter-prism gas layer forming member may be cylindrical or spherical.

  The prism panel structure includes a heat insulating gas layer forming member for forming a heat insulating gas layer between the opposing first glass plate and the first prism panel and between the opposing second glass plate and the second prism panel. Further, it may be provided.

  A plurality of sets of first prism panels and second prism panels may be arranged in a plane between the first glass plate and the second glass plate.

  It should be noted that any combination of the above-described constituent elements and a representation of the present invention converted between a method, an apparatus, a system, etc. are also effective as an aspect of the present invention.

  ADVANTAGE OF THE INVENTION According to this invention, the multilayer glass which can make the interruption | blocking of direct light and transmission of sky light compatible can be provided.

It is a figure which shows sectional drawing of the multilayer glass which concerns on embodiment of this invention. It is a figure which shows the top view of a prism panel structure. It is a fragmentary perspective view of a prism panel structure. 4A and 4B are views for explaining the second holding member. It is a figure for demonstrating the structure of a prism panel structure. 6A and 6B are views showing the shape of the inter-prism gas layer forming member. It is a figure which shows an example of the arrangement position of the gas layer forming member between prisms. It is a figure for demonstrating an effect | action of a prism panel structure. It is a figure for demonstrating the effect of a prism panel structure. It is a figure for demonstrating the modification of a 1st holding member and a 2nd holding member.

  FIG. 1 shows a cross-sectional view of a multilayer glass 10 according to an embodiment of the present invention.

  The multi-layer glass 10 includes a first glass plate 11 and a second glass plate 12 which are arranged to face each other in a separated state, and a spacer 13 which is arranged between the first glass plate 11 and the second glass plate 12.

  The spacer 13 is disposed on the peripheral edge portions of the first glass plate 11 and the second glass plate 12, and forms a space between the first glass plate 11 and the second glass plate 12. The spacer 13 is a thin metal plate (for example, an aluminum plate) formed into a cylindrical shape by roll forming, and prevents condensation in the space between the first glass plate 11 and the second glass plate 12 inside. A desiccant 14 is placed for the purpose. The desiccant may be silica gel, for example. The spacer 13 is bonded to the inner side surfaces of the first glass plate 11 and the second glass plate 12 by a primary seal 15. The primary seal 15 may be butyl rubber, for example. A space between the first glass plate 11 and the second glass plate 12 outside the spacer 13 is filled with a secondary seal 16, and the space between the first glass plate 11 and the second glass plate 12 is provided by the secondary seal 16. A sealed space is formed. The secondary seal 16 may be a silicon sealant or a thiocol sealant. In this space, gas (for example, dry air) is sealed.

  Furthermore, the multilayer glass 10 according to the present embodiment includes a prism panel structure 20 provided in a space between the first glass plate 11 and the second glass plate 12. FIG. 2 is a plan view of the prism panel structure 20.

  The prism panel structure 20 retroreflects light incident in a predetermined angle range by combining two prism panels. For example, by using the multilayer glass 10 according to the present embodiment for a building such as a building, direct light to the room can be blocked, and an antiglare effect and a heat shield effect can be obtained. Furthermore, since light incident outside the predetermined angle range is transmitted, sky light can be suitably taken into the room, and the brightness of the indoor space can be ensured.

  The prism panel structure 20 includes a first prism panel 21 having a first prism forming surface 21a on which a prism is formed, a second prism panel 22 having a second prism forming surface 22a on which a prism is formed, and a first prism. An inter-prism gas layer forming member 25 for forming a gas layer (for example, an air layer) between the forming surface 21a and the second prism forming surface 22a, and the first prism forming surface 21a and the second prism forming surface 22a. A first holding member 23 and a second holding member 24 that hold the first prism panel 21 and the second prism panel 22 are provided so as to face each other.

  The first prism panel 21 and the second prism panel 22 constituting the prism panel structure 20 are made of a transparent resin material such as polycarbonate or acrylic. The first prism panel 21 and the second prism panel 22 are also made of a transparent resin material such as polycarbonate or acrylic.

  As shown in FIG. 2, the prism panel structure 20 is formed by arranging a plurality of sets of first prism panels 21 and second prism panels 22 in a planar shape. The prism panel has a size limit in manufacturing and it is difficult to manufacture a large area, but by adopting such a structure, it is possible to cope with a wide area multilayer glass. The first holding member 23 and the second holding member 24 also have a function of fixing the plurality of sets of the first prism panel 21 and the second prism panel 22 to each other.

  As shown in FIG. 2, the first holding member 23 is provided at the peripheral portion of the plurality of sets of the first prism panel 21 and the second prism panel 22 arranged in a planar shape. FIG. 3 is a partial perspective view of the prism panel structure 20. As shown in FIGS. 1 to 3, the first holding member 23 is an elongated body having a U-shaped cross section, and holds the peripheral portions of the first prism panel 21 and the second prism panel 22 so as to face each other. To do. The first holding member 23 fixes the peripheral portions of the adjacent first prism panel 21 and second prism panel 22 to each other.

  As shown in FIG. 2, the second holding member 24 is provided at the corner of the four adjacent first prism panels 21 and second prism panels 22. 4A and 4B are views for explaining the second holding member 24. FIG. The 2nd holding member 24 couple | bonds two plate-shaped side parts 24a and 24b spaced apart by predetermined distance with the coupling member 24c. The second holding member 24 may have a round bobbin shape as shown in FIG. 4A or a square bobbin shape as shown in FIG. By inserting the corners of four sets of the first prism panel 21 and the second prism panel 22 of one second holding member 24, the first prism panel 21 and the second prism panel 22 are held opposite to each other, and four sets The first prism panel 21 and the second prism panel 22 are fixed to each other.

  Thus, in this embodiment, the first holding member 23 and the second holding member 24 are used in combination, so that the first prism panel 21 and the second prism panel 22 are held opposite to each other, and a plurality of sets of first prisms are used. The panel 21 and the second prism panel 22 are fixed to each other to form the prism panel structure 20.

  FIG. 5 is a diagram for explaining the configuration of the prism panel structure 20. On one surface of the first prism panel 21 (first prism forming surface 21a), a plurality of long prisms 21b having an isosceles triangular cross section are arranged in parallel. The back surface 21c of the first prism forming surface 21a in the first prism panel 21 is a flat surface. Similarly, on one surface of the second prism panel 22 (second prism forming surface 22a), a plurality of long prisms 22b having an isosceles triangular cross section are arranged in parallel. The back surface 22c of the second prism forming surface 22a in the second prism panel 22 is a flat surface. The apex angle of the isosceles triangle in the prisms 21b and 22b may be 45 degrees, for example, and the height may be 0.5 mm, for example.

  An inter-prism gas layer forming member 25 is disposed between the first prism forming surface 21a and the second prism forming surface 22a. The inter-prism gas layer forming member 25 is sandwiched between the first prism forming surface 21a and the second prism forming surface 22a. In the state where the inter-prism gas layer forming member 25 is sandwiched between the first prism forming surface 21a and the second prism forming surface 22a, the first prism panel 21 and the first prism panel 21 are connected to each other using the first holding member 23 and the second holding member 24. By holding the two prism panels 22 facing each other, the inter-prism gas layer forming member 25 is pressed by the first prism panel 21 and the second prism panel 22, and the position thereof is fixed. By providing the inter-prism gas layer forming member 25, close contact between the opposing prisms is prevented, so that an air layer can be reliably formed between the prisms. By providing an air layer between the prisms, the retroreflection performance of the prism panel structure 20 can be ensured.

  FIGS. 6A and 6B show the shape of the inter-prism gas layer forming member 25. The inter-prism gas layer forming member 25 may be spherical as shown in FIG. 6A, or may be a cylindrical body as shown in FIG. In order to stably form an extremely thin air layer between the prisms, the diameter of the sphere or the diameter α of the bottom surface of the cylinder is preferably 0.1 mm or less. The material of the inter-prism gas layer forming member 25 is not particularly limited as long as it is transparent. However, in order to prevent the first prism panel 21 and the second prism panel 22 from being scratched, those having a low surface hardness are preferable. . Suitable materials include, for example, transparent chemical fiber yarn such as nylon wire, transparent chemical fiber, and the like.

  FIG. 7 shows an example of an arrangement position of the inter-prism gas layer forming member 25. As shown in FIG. 7, the inter-prism gas layer forming member 25 is disposed on the peripheral portions of the first prism panel 21 and the second prism panel 22. Further, the inter-prism gas layer forming member 25 may be disposed at the center of the first prism panel 21 and the second prism panel 22. The arrangement position of the inter-prism gas layer forming member 25 is not particularly limited, and is appropriately set according to the size and material of the prism panel.

  FIG. 8 is a diagram for explaining the operation of the prism panel structure 20. As shown in FIG. 8, the prism panel structure 20 retroreflects light incident at an angle within a predetermined incident angle range θ and transmits light incident at an angle outside the incident angle range θ. That is, the prism panel structure 20 is in a mirror state for light incident at an angle within the incident angle range θ, and is in a glass state for light incident at an angle outside the incident angle range θ.

  FIG. 9 is a diagram for explaining the effect of the prism panel structure 20. As shown in FIG. 9, by providing the prism panel structure 20 in a double-layer glass used for a window of a building, direct light from the sun incident in a predetermined angle range is converted into gas between the prism panel and the panel. It can be retroreflected at the interface with the layer. Thereby, the glare-proof effect and the heat-shielding effect are acquired. Further, since the prism panel structure 20 transmits sky light (diffused light) incident outside a predetermined angle range, the sky light can be suitably taken into the room and the brightness of the indoor space can be ensured. . Thereby, since lighting of room lighting can be unnecessary or at least reduced, it can contribute to energy saving. Furthermore, according to the prism panel structure 20, the visibility to the external space can be ensured.

  Returning to FIG. 1, in the multilayer glass 10 according to the present embodiment, the first holding member 23 and the second holding member 24 serve as holding members for holding the first prism panel 21 and the second prism panel 22. In addition to the role as a coupling member that couples the plurality of sets of the first prism panel 21 and the second prism panel 22, it is between the first glass plate 11 and the first prism panel 21 and between the second glass plate 12 and the second prism panel. 22 has a role as a heat insulating gas layer forming member for forming heat insulating gas layers (for example, air layers) 26 and 27 between them. That is, the side surfaces 23a and 23b of the first holding member 23 having a U-shaped cross section and the side surfaces 24a and 24b of the second holding member 24 having a bobbin shape are arranged between the first glass plate 11 and the first prism panel 21 and the second. By interposing between the glass plate 12 and the second prism panel 22, it is possible to prevent the prism panel and the glass plate from coming into close contact with each other, and stable heat insulating gas layers 26 and 27 can be formed. Thus, by forming the heat insulation gas layers 26 and 27, the heat insulation performance which the conventional multilayer glass originally had can be maintained. By changing the thicknesses of the side surface portions 23a and 23b of the first holding member 23 and the side surface portions 24a and 24b of the second holding member 24, the layer thickness of the heat insulating gas layers 26 and 27 can be adjusted. Performance can be obtained.

  FIGS. 10A and 10B are diagrams for explaining modifications of the first holding member 23 and the second holding member 24. In the 1st holding member 23 shown to Fig.10 (a), the protrusion parts 23c and 23d are provided in the outer side of the side parts 23a and 23b. Moreover, in the 2nd holding member 24 shown in FIG.10 (b), protrusion part 24d, 24e is provided in the outer side of side part 24a, 24b. These protrusions have a role of forming a heat insulating gas layer between the glass plate and the prism panel. By changing the height of the protrusion, the layer thickness of the heat insulating gas layer can be adjusted, and desired heat insulating performance can be obtained.

  For example, when a multi-layer glass is used for the top light, there is a risk that an iris phenomenon (that is, a moire (interference fringe pattern)) may occur due to the prism panel and the glass plate being in close contact with each other due to the deflection of the glass plate due to its own weight. This moire may reduce visibility. According to the present embodiment, by interposing the first holding member 23 and the second holding member 24 between the prism panel and the glass plate, the heat insulating gas layers 26 and 27 are stably provided between the glass plate and the prism panel. Therefore, the iris phenomenon can be avoided and good visibility can be secured.

  In the multi-layer glass 10 according to the present embodiment, even if the resin prism panel is slightly deformed due to thermal expansion, the prism panel is fixed by the first holding member 23 and the second holding member 24, so that the heat insulating gas is used. The layers 26 and 27 are not greatly out of balance. Since the resin material inside the multilayer glass is integrated, it is easy to take clearance for thermal expansion.

  Further, in the multilayer glass 10 according to the present embodiment, the prism panel structure 20 is provided in the sealing space between the first prism panel 21 and the second prism panel 22. No special maintenance is required. Since it is only necessary to perform double-sided cleaning of the glass plate in the same manner as ordinary multilayer glass, it is excellent in maintainability.

  The present invention has been described based on the embodiments. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to combinations of the respective constituent elements and processing processes, and such modifications are also within the scope of the present invention. is there.

  DESCRIPTION OF SYMBOLS 10 Multi-layer glass, 11 1st glass plate, 12 2nd glass plate, 13 Spacer, 14 Desiccant, 15 Primary seal, 16 Secondary seal, 20 Prism panel structure, 21 1st prism panel, 21a 1st prism formation Surface, 21b prism, 22 second prism panel, 22a second prism forming surface, 22b prism, 23 first holding member, 24 second holding member, 25 inter-prism gas layer forming member, 26 heat insulating gas layer.

Claims (4)

A first glass plate and a second glass plate which are arranged to face each other in a separated state;
A prism panel structure provided between the first glass plate and the second glass plate;
A double glazing comprising:
The prism panel structure is
A first prism panel having a first prism forming surface;
A second prism panel having a second prism forming surface;
A holding member that holds the first prism panel and the second prism panel so that the first prism forming surface and the second prism forming surface face each other;
An inter-prism gas layer forming member for forming a gas layer between the first prism forming surface and the second prism forming surface;
A double-glazed glass comprising:   The multilayer glass according to claim 1, wherein the inter-prism gas layer forming member has a cylindrical shape or a spherical shape.   The prism panel structure has heat insulation for forming a heat insulating gas layer between the first glass plate and the first prism panel facing each other and between the second glass plate and the second prism panel facing each other. The multilayer glass according to claim 1, further comprising a gas layer forming member.   4. A plurality of sets of the first prism panel and the second prism panel are arranged in a plane between the first glass plate and the second glass plate. Double-layer glass described in 1.

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