Exterior body

Abstract

To provide an exterior body having excellent thermal insulation performance.SOLUTION: A ventilation panel unit 2 comprises an outdoor-side panel 41, a heat-shielding sheet 44, and a connecting part 43 that connects the outdoor-side panel 41 and the heat-shielding sheet 44 such that an outdoor-side sealed space S11 is formed between the outdoor-side panel 41 and the heat-shielding sheet 44.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to an exterior body [Background technology]

[0002] BACKGROUND ART Architectural panels used for curtain walls and the like have been known (see, for example, Patent Document 1). The architectural panel described in Patent Document 1 includes a panel frame, a honeycomb core disposed in a space surrounded by the panel frame, and metal face and back panels integrated on both the front and back sides of the honeycomb core. The architectural panel is attached to a mullion via mounting brackets. Patent Document 1 describes that an auxiliary panel may be incorporated into the space between the back plate and the mullion mounting surface. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 5-311790 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the structure in which the auxiliary panel of Patent Document 1 is incorporated may not provide a sufficient heat insulating effect.

[0005] An object of the present invention is to provide an exterior body having excellent heat insulating properties. [Means for solving the problem]

[0006] The exterior body of the present invention is characterized by comprising an outdoor panel, a heat-shielding sheet, and a connecting portion that connects the outdoor panel and the heat-shielding sheet so that an outdoor-side sealed space is formed between the outdoor panel and the heat-shielding sheet. [Effects of the Invention]

[0007] According to the present invention, an exterior body having excellent heat insulating properties can be provided. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a view showing the curtain walls according to the first, second and third embodiments of the present invention as seen from outside the room. [Figure 2] FIG. 2 is a longitudinal cross-sectional view of the ventilation panel unit according to the first embodiment. [Figure 3] FIG. 2 is a cross-sectional view of the ventilation panel unit according to the first embodiment. [Figure 4] FIG. 10 is a vertical cross-sectional view of a panel unit according to a second embodiment. [Figure 5] FIG. 10 is a cross-sectional view of a panel unit according to a second embodiment. [Figure 6] FIG. 10 is a vertical cross-sectional view of a panel unit according to a third embodiment. [Figure 7] FIG. 10 is a cross-sectional view of a panel unit according to a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] [First embodiment] A first embodiment of the present invention will be described below with reference to the drawings. 1, the left-right direction of the curtain wall 1 is defined as the X-axis, the up-down direction of the curtain wall 1 is defined as the Y-axis, and the direction from inside to outside the room (view direction) of the curtain wall 1 is defined as the Z-axis. The X, Y, and Z axes are perpendicular to each other.

[0010] <Curtain wall configuration> First, the configuration of the curtain wall 1 will be described. The curtain wall 1 forms the exterior wall surface of a building. The curtain wall 1 comprises curtain wall units 10 adjacent to each other in the X-axis direction and the Y-axis direction. The curtain wall unit 10 comprises a glass panel portion 11, a ventilation panel unit 2 serving as an exterior body adjacent to the glass panel portion 11 in the Y-axis direction, a first spandrel portion 12 located above the glass panel portion 11, and a second spandrel portion 13 located above the ventilation panel unit 2. When viewed from outside the room, the ventilation panel unit 2 is formed as a vertically elongated rectangle whose dimension in the X-axis direction is shorter than its dimension in the Y-axis direction.

[0011] As shown in Figures 2 and 3, the ventilation panel unit 2 comprises a rectangular frame body 3 and a shoji screen 4 attached to the frame body 3 so that the opening of the frame body 3 can be opened and closed, and is configured so that the inside of the building can be ventilated by opening and closing the shoji screen 4. In the first embodiment and the second and third embodiments described below, when describing each part of the ventilation panel unit 2 and panel units 6, 7, the center side of the ventilation panel unit 2 or panel unit 6, 7 in the X-axis direction may be referred to as the inner side in the left-right direction, the side opposite the inner side in the left-right direction may be referred to as the outer side in the left-right direction, the center side of the Y-axis direction may be referred to as the inner side in the up-down direction, and the side opposite the inner side in the up-down direction may be referred to as the outer side in the up-down direction.

[0012] The frame body 3 has an upper frame 31, a lower frame 32, and left and right vertical frames 33 that are framed all around, and is formed into a vertically long rectangular frame whose dimension in the X-axis direction is shorter than its dimension in the Y-axis direction. The upper frame 31 and the lower frame 32 each include an upper frame body 311 and a lower frame body 321 formed in a generally rectangular shape with a hollow portion aligned along the X-axis direction. The exterior ends of each frame body 311 and 321 are provided with exterior viewing surfaces 312 and 322 that extend inward in the vertical direction. The pair of vertical frames 33 each include a vertical frame body 331 formed in a generally rectangular shape with a hollow portion aligned along the Y-axis direction. The exterior ends of each vertical frame body 331 are provided with an exterior viewing surface 332 that extends inward in the left-right direction. A weatherstripping material 34 is attached to the indoor side of the tip of each of the exterior facing surfaces 312, 322, 332. A tension material contact portion 313, 323 that protrudes inward in the vertical direction is provided at approximately the center in the Z-axis direction of each frame body 311, 321. A tension material contact portion 333 that protrudes inward in the left-right direction is provided at approximately the center in the Z-axis direction of each vertical frame body 331.

[0013] The shoji screen 4 comprises an outdoor panel 41 and an indoor panel 42 with light-blocking properties, a connecting portion 43 that connects the outdoor panel 41 and the indoor panel 42 so that an enclosed space S1 is formed between the outdoor panel 41 and the indoor panel 42, and a heat-shielding sheet 44 that divides the enclosed space S1 into an outdoor enclosed space S11 and an indoor enclosed space S12. The outdoor panel 41, the indoor panel 42 and the connecting portion 43 are made of a metal such as aluminum.

[0014] The outdoor panel 41 includes an outdoor panel body 411 in the form of a rectangular plate, and a pair of outdoor mounting portions 412 . Each outdoor mounting portion 412 is provided so as to extend from both ends of the outdoor panel main body 411 in the X-axis direction toward the indoor side. Each outdoor mounting portion 412 is provided across the entire outdoor panel main body 411 in the Y-axis direction. The left-right (horizontal) X-axis direction corresponds to one direction in the present invention. Each outdoor mounting portion 412 includes a first outdoor-facing surface 413 extending toward the indoor side along the Z-axis direction, a first outdoor-facing surface 414 extending outward in the left-right direction from the tip of the first outdoor-facing surface 413, a second outdoor-facing surface 415 extending toward the indoor side along the Z-axis direction from a position inside the left-right direction of the tip of the first outdoor-facing surface 414, and a second outdoor-facing surface 416 extending outward in the left-right direction from the outdoor side beyond the tip of the second outdoor-facing surface 415. A weatherstripping material 45 is attached to the outside of the tip of each second exterior-facing surface 416. An extension piece 417 extending toward the inside of the room along the Z-axis direction is provided at approximately the center in the X-axis direction of each second exterior-facing surface 416. The extension piece 417 is provided so that the position of its tip in the Z-axis direction is the same as the position of the tip of the second exterior-facing surface 415 in the Z-axis direction.

[0015] The indoor side panel 42 includes an indoor side panel main body 421 in the form of a rectangular plate, and a pair of indoor side mounting portions 422 . The indoor-side panel main body 421 is formed so that its lengths in the X-axis direction and the Y-axis direction are longer than the lengths of the outdoor-side panel main body 411 in the X-axis direction and the Y-axis direction, respectively. Each indoor mounting portion 422 is provided so as to extend toward the room from a position on the left-right inner side of both ends of the indoor panel main body 421 in the X-axis direction. Each indoor mounting portion 422 is formed so that its length in the Y-axis direction is equal to the length in the Y-axis direction of each outdoor mounting portion 412. Each indoor mounting portion 422 includes a first indoor visibility surface portion 423 extending toward the outdoor side along the Z-axis direction, an indoor sighting surface portion 424 extending outward in the left-right direction from the tip of the first indoor sighting surface portion 423, and a second indoor sighting surface portion 425 extending toward the outdoor side along the Z-axis direction from the tip of the indoor sighting surface portion 424. A locking portion 426 that protrudes outward in the left-right direction is provided at the tip of each second interior-view surface portion 425. A seat attachment piece 427 that extends inward in the left-right direction is provided at the center in the Z-axis direction of each second interior-view surface portion 425. Extension pieces 428 extending outward along the Z-axis direction are provided on the inside of both ends of the indoor-side panel body 421 in the X-axis direction and on the outside of the connection portion with the indoor-side mounting portion 422. The extension pieces 428 are provided so that their tips are located on the indoor side of the tip of the first indoor-view surface portion 423.

[0016] An insulating material 46 made of a heat-insulating material such as EPDM (ethylene propylene diene rubber) is attached to the outdoor mounting portion 412 of each outdoor panel 41. Each insulating material 46 is attached so as to cover the portion of the inner surface of each second outdoor-facing surface 415 in the left-right direction that is closer to the room than the center in the Z-axis direction, the indoor-side ends of the second outdoor-facing surface 415 and the extension piece 417, and the outer surface of the extension piece 417 in the left-right direction.

[0017] The indoor-side panel 42 is attached to the outdoor panel 41 so that the second indoor-side facing surface 425 faces the second outdoor-side facing surface 415 with the insulating material 46 in between, the indoor-side panel main body 421 faces the second outdoor-side facing surface 415 and the indoor-side end of the extending piece 417 with the insulating material 46 in between, the extending piece 428 faces the extending piece 417 with the insulating material 46 in between, and the locking portion 426 locks onto the outdoor-side end of the insulating material 46. The indoor-side panel 42 is fixed to the outdoor panel 41 with screws 47 that penetrate the second outdoor-side facing surface 415 and the insulating material 46 from the outside in the left-right direction of each second outdoor-side facing surface 415 and are screwed into portions of the second indoor-side facing surface 425 that are closer to the outdoor side than the connection portions of the sheet mounting pieces 427. By fixing the outdoor panel 41 and the indoor panel 42 in this way, the outdoor mounting part 412 and the indoor mounting part 422 function as vertical connecting parts that connect both ends of the outdoor panel 41 and the indoor panel 42 in the horizontal direction (left and right direction), that is, they function as vertical frames of the shoji screen 4, and openings are formed only on the upper and lower sides. The Y-axis direction, which is the up-down direction (vertical direction), corresponds to the other direction in this invention.

[0018] The connecting portion 43 is provided with a pair of closing members 48 for the upper and lower openings formed by the outdoor panel 41 and the indoor panel 42. The pair of closing members 48 also function as horizontal connecting portions that connect both ends of the outdoor panel 41 and the indoor panel 42 in the vertical direction (up and down direction), and are attached to the upper and lower openings, respectively, in a vertically symmetrical manner. Each blocking member 48 is formed in the shape of a rectangular plate extending in the X-axis direction, and includes a blocking body 481 that is screwed to the outdoor panel 41 and the indoor panel 42. The upper blocking body 481 abuts against the upper end surface of the outdoor panel 41 and the outdoor side surface of the indoor panel body 421, and the lower blocking body 481 abuts against the lower end surface of the outdoor panel 41 and the outdoor side surface of the indoor panel body 421. The outdoor panel 41, the indoor panel 42, and the pair of closing members 48 are fixed so that the space enclosed by them becomes an enclosed space S1.

[0019] Each blocking body 481 is provided with an exterior facing surface 482 extending outward in the vertical direction from the outside-side portion, an interior facing surface 483 extending outward in the vertical direction from the inside-side portion, and a facing surface 484 extending from the outside in the vertical direction of the exterior facing surface 482 toward the interior along the Z-axis direction and connected to the center of the interior facing surface 483 in the Y-axis direction. A weatherstripping material 45 is attached to the outside of the room at the outer tip of each of the indoor visible surfaces 483 in the vertical direction.

[0020] The heat shielding sheet 44 is formed in the shape of a rectangular sheet having heat shielding properties. The heat shielding sheet 44 includes a sheet that exerts heat insulating and heat shielding effects and can more or less control the transfer of heat.

[0021] A sheet mounting portion 49 is provided on each of the indoor panel 42 and the connecting portion 43. The sheet mounting portion 49 is composed of a pair of sheet mounting pieces 427 provided on the indoor panel 42, a pair of sheet mounting base members 491 provided on the blocking body 481 of each blocking member 48, and four clamping members 492. Each seat mounting base member 491 includes a base 493 whose longitudinal direction is parallel to the X-axis direction, and seat mounting pieces 494 that extend inward in the vertical direction from the exterior side edge of the base 493. Each seat mounting base member 491 has each base 493 fixed to the inner surface of each blocking member 48 in the vertical direction with screws 495 at multiple locations in the X-axis direction so that the positions of each seat mounting piece 494 in the Z-axis direction are the same. The outer periphery of the heat shield sheet 44 is sandwiched between each sheet mounting piece 427, 494 and clamping members 492 located on the outdoor side of each sheet mounting piece 427, 494, and is fixed to the outdoor panel 41, the indoor panel 42, and the connecting portion 43 at multiple points in the circumferential direction by screws 496 as fasteners that penetrate the clamping members 492 and the heat shield sheet 44 from the outdoor side and are screwed into each sheet mounting piece 427, 494. With the heat shield sheet 44 fixed in this manner, the enclosed space S1 is partitioned at approximately the center in the Z-axis direction between the outdoor enclosed space S11 and the indoor enclosed space S12 so that gas does not move between them.

[0022] A handle 21 is attached to one side in the X-axis direction of the indoor panel 42 of the shoji screen 4. The other side in the X-axis direction of the shoji screen 4 is attached to the vertical frame 33 of the frame body 3 via a hinge (not shown). 2 and 3, the ventilation panel unit 2 has the outdoor surface of the outdoor panel body 411 of the outdoor panel 41 positioned flush with the outdoor-facing surfaces 312, 322 of the frame body 3, with each of the sealing members 34 of the frame body 3 contacting the outdoor-facing surfaces 414, 482 of the shoji screen 4, and each of the sealing members 45 of the shoji screen 4 contacting the sealing member contact portions 313, 323, 333 of the frame body 3. This contact seals the gap between the frame body 3 and the shoji screen 4 all around the opening of the frame body 3, isolating the room from the outside. When the ventilation panel unit 2 is rotated from the closed state in the direction of arrow A1 to the open state, the sealing of the gap between the frame body 3 and the shoji screen 4 all around the opening of the frame body 3 is released, allowing ventilation inside the room.

[0023] <Advantages of the First Embodiment> (1) According to the first embodiment, the sealed space S1 of the shoji screen 4 constituting the ventilation panel unit 2 is divided into an outdoor sealed space S11 and an indoor sealed space S12 by the heat-shielding sheet 44, thereby suppressing the transfer of heat between the outdoors and the indoors. Therefore, a ventilation panel unit 2 with excellent thermal insulation performance can be provided. Furthermore, construction is easier than in a configuration in which rock wool is filled into the sealed space S1 to improve heat insulation performance.

[0024] (2) Since the heat shield sheet 44 is fixed to the left and right indoor mounting portions 422 and the upper and lower blocking members 48, heat transfer between the heat shield sheet 44 and the indoor mounting portions 422 and the upper and lower blocking members 48 can be suppressed.

[0025] (3) The heat shield sheet 44 is fixed to the sheet mounting pieces 427, 494 by the screws 496 attached from the outside of the room, so that the heat shield sheet 44 can be easily fixed. The screws 496 may also be attached from the inside of the room.

[0026] (4) Since the heat-shielding sheet 44 is located approximately in the center of the projected direction, the ventilation panel unit 2 can be provided with excellent insulation performance both when the outdoor temperature is higher than the indoor temperature and when it is lower than the indoor temperature.

[0027] (5) The shoji screen 4 that constitutes the ventilation panel unit 2 can be assembled in a simple manner by integrating the indoor panel 42 with a pair of upper blocking members 48 and then attaching the outdoor panel 41 to the integrated assembly. In addition, the outdoor mounting portion 412 and the indoor mounting portion 422 that make up the vertical frame of the shoji screen 4 are integrated into the outdoor panel 41 and the indoor panel 42, respectively, thereby reducing the number of parts in the shoji screen 4.

[0028] (6) Since each indoor mounting portion 422 is attached to each outdoor mounting portion 412 with insulating material 46 sandwiched therebetween, heat transfer between the indoor mounting portion 422 and the outdoor mounting portion 412 can be suppressed, thereby improving the insulation performance of the ventilation panel unit 2.

[0029] [Second embodiment] Next, a second embodiment of the present invention will be described with reference to the drawings. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be simplified.

[0030] <Curtain wall configuration> The curtain wall 1A of the second embodiment shown in FIG. 1 differs from the curtain wall 1 of the first embodiment in that a panel unit 6 is provided as an exterior body instead of the ventilation panel unit 2 that constitutes the curtain wall unit 10.

[0031] As shown in Figures 4 and 5, the panel unit 6 comprises an outdoor panel 61 and an indoor panel 62 having light-blocking properties, a frame body 63 as a connecting part that connects the outdoor panel 61 and the indoor panel 62 so that an enclosed space S2 is formed between the outdoor panel 61 and the indoor panel 62, and a heat-shielding sheet 44 that divides the enclosed space S2 into an outdoor enclosed space S21 and an indoor enclosed space S22. The outdoor panel 61, the indoor panel 62 and the frame 63 are made of metal such as aluminum.

[0032] The outdoor panel 61 comprises an outdoor panel main body 611 having a hollow portion along the Y-axis direction, and a flange portion 612 extending outward from the outdoor outer edge of the outdoor panel main body 611 to the right and left in the vertical and horizontal directions. The indoor side panel 62 includes a plate-shaped indoor side panel main body 621 and protruding pieces 622 each extending from an outer edge of the indoor side panel main body 621 toward the indoor side.

[0033] The frame body 63 has upper and lower horizontal frames 64 and left and right vertical frames 65 that frame all four sides, and is formed in the shape of a vertically long rectangular frame whose dimension in the X-axis direction is shorter than its dimension in the Y-axis direction.

[0034] The upper and lower horizontal frames 64 also function as horizontal connectors connecting both vertical (up-down) ends of the outdoor panel 61 and the indoor panel 62, and are arranged symmetrically up and down. Each horizontal frame 64 includes an indoor-side horizontal member 641 as the indoor-side connector, and an outdoor-side horizontal member 642 as the outdoor-side connector. The indoor-side horizontal member 641 includes an indoor-facing surface 643 facing the interior of the room, an indoor-facing surface 644 extending from the inner-up-down end of the indoor-facing surface 643 to the outside along the Z-axis, and a first intermediate facing surface 645 extending from the tip of the indoor-facing surface 644 to the outside in the Y-axis. The outdoor horizontal member 642 includes a second intermediate sighting surface 646 facing the indoor side of the first intermediate sighting surface 645, an outdoor sighting surface 647 extending from the outer vertical end of the second intermediate sighting surface 646 to the outdoor side along the Z axis, and an outdoor sighting surface 648 extending from the tip of the outdoor sighting surface 647 to the inward vertical direction along the Y axis. Each first intermediate sighting surface 645 is provided with a gasket 66. The indoor horizontal member 641 is fixed to the outdoor horizontal member 642 with screws 47 and nuts 47A so that the first intermediate sighting surface 645 faces the second intermediate sighting surface 646 with the insulating material 46 in between.

[0035] The left and right vertical frames 65 also function as vertical connectors connecting both horizontal (left-right) ends of the outdoor panel 61 and the indoor panel 62, and are arranged symmetrically. Each vertical frame 65 includes an indoor-side vertical member 651 as an indoor-side connector, and an outdoor-side vertical member 652 as an outdoor-side connector. The indoor-side vertical member 651 includes an indoor-side visible surface 653 facing the interior of the room, an indoor-side visible surface 654 extending from the inner left-right edge of the indoor-side visible surface 653 to the outside along the Z-axis, and a first intermediate visible surface 655 extending from the tip of the indoor-side visible surface 654 to the outside in the Y-axis. The outdoor vertical member 652 includes a second intermediate sighting surface 656 facing the indoor side of the first intermediate sighting surface 655, a first outdoor sighting surface 657 extending from the outer left-right end of the second intermediate sighting surface 656 toward the outdoor side along the Z-axis, an outdoor sighting surface 658 extending inward in the left-right direction from the tip of the first outdoor sighting surface 657, and a second outdoor sighting surface 659 extending from the tip of the outdoor sighting surface 658 toward the indoor side along the Z-axis. Each first intermediate sighting surface 655 is provided with a gasket 66. The indoor vertical member 651 is fixed to the outdoor vertical member 652 with screws 47 and nuts 47A so that the first intermediate sighting surface 655 faces the second intermediate sighting surface 656 with the insulating material 46 sandwiched therebetween.

[0036] Four panel mounting portions 67 are provided on the frame body 63. Two of the panel mounting portions 67 are provided to extend inward in the vertical direction from indoor-side positions on the indoor-side visible surface portions 644 of each horizontal frame 64, and the remaining two panel mounting portions 67 are provided to extend inward in the horizontal direction from indoor-side positions on the indoor-side visible surface portions 654 of each vertical frame 65. The outdoor panel 61 that closes the opening on the indoor side is fixed to the frame 63 with the indoor surface of the outdoor panel main body 611 pressed against the gaskets 66 and with airtightness maintained between the flanges 612 and the outdoor-facing surfaces 648, 658. By providing the gaskets 66 between the outdoor panel 61 and the frame 63 in this way, the heat insulating performance of the panel unit 6 is improved. An indoor panel 62 that covers the opening on the indoor side is fixed to the frame body 63 so that the indoor side surface of the indoor panel main body 621 is positioned on the same plane as the indoor visible surface parts 643, 653 of the frame body 63, and airtightness is maintained between each protruding piece part 622 and each indoor visible surface part 644, 654.

[0037] The frame body 63 is provided with a seat mounting portion 68. The seat mounting portion 68 is composed of four seat mounting base members 681 and four clamping members 682, which are provided on the interior-facing visible surface portions 644, 654 of each frame 64, 65, respectively. The two sheet mounting base members 681 are provided on the indoor-side visible surface portion 644 and each include a base 683 whose longitudinal direction is parallel to the X-axis direction and a sheet mounting piece 684 extending inward in the vertical direction from the outdoor-side side edge of the base 683. The remaining two sheet mounting base members 681 are provided on the indoor-side visible surface portion 654 and each include a base 683 whose longitudinal direction is parallel to the X-axis direction and a sheet mounting piece 684 extending inward in the horizontal direction from the outdoor-side side edge of the base 683. The four sheet mounting base members 681 have their bases 683 fixed to their corresponding indoor-side visible surface portions 644, 654 at multiple locations in the X-axis direction with screws 685 so that the Z-axis position of each sheet mounting piece 684 is centered in the Z-axis direction. The outer periphery of the heat shield sheet 44 is sandwiched between each sheet mounting piece 684 and clamping members 682 located on the outdoor side of each sheet mounting piece 684, and is fixed to the frame 63 at multiple points in the outer periphery direction by screws 686 as fasteners that penetrate the clamping members 682 and the heat shield sheet 44 from the indoor side and are screwed into each sheet mounting piece 684. With the heat shield sheet 44 fixed in this way, the enclosed space S2 is partitioned at approximately the center in the Z-axis direction between the outdoor enclosed space S21 and the indoor enclosed space S22 so that gas does not move between them.

[0038] <Effects of the second embodiment> According to the second embodiment, the sealed space S2 of the panel unit 6 is divided into an outdoor sealed space S21 and an indoor sealed space S22 by a heat-shielding sheet 44, thereby providing a panel unit 6 with excellent insulation performance, and construction is easier than in a configuration in which rock wool is filled in the sealed space S2 to improve insulation performance. Since the heat shielding sheet 44 is fixed to the left and right horizontal frames 64 and the left and right vertical frames 65, the transfer of heat between the heat shielding sheet 44 and the horizontal frames 64 and vertical frames 65 can be suppressed. The heat shield sheet 44 is fixed to each sheet mounting piece 684 by screws 686 attached from the inside of the room, so that it is easy to fix the heat shield sheet 44. The screws 686 may also be attached from the outside of the room. The indoor side horizontal member 641 is attached to the outdoor side horizontal member 642 with the insulating material 46 sandwiched therebetween, and the indoor side vertical member 651 is attached to the outdoor side vertical member 652 with the insulating material 46 sandwiched therebetween, thereby improving the heat insulating performance of the panel unit 6. Furthermore, the same effect as that of (4) in the first embodiment can be achieved.

[0039] [Third embodiment] Next, a third embodiment of the present invention will be described with reference to the drawings. The same components as those in the first and second embodiments are denoted by the same reference numerals, and the description thereof will be simplified.

[0040] <Curtain wall configuration> The curtain wall 1B of the third embodiment shown in FIG. 1 differs from the curtain wall 1A of the second embodiment in that a panel unit 7 is provided instead of the panel unit 6 that constitutes the curtain wall unit 10.

[0041] As shown in Figures 6 and 7, the panel unit 7 comprises an outdoor panel 71 and an indoor panel 62 having light-blocking properties, a frame body 73 as a connecting part that connects the outdoor panel 71 and the indoor panel 62 so that an enclosed space S3 is formed between the outdoor panel 71 and the indoor panel 62, and a heat-shielding sheet 44 that divides the enclosed space S3 into an outdoor enclosed space S31 and an indoor enclosed space S32. The outdoor panel 71, the indoor panel 62 and the frame 73 are made of metal such as aluminum.

[0042] The frame body 73 has upper and lower horizontal frames 74 and left and right vertical frames 75 that frame all four sides, and is formed in the shape of a vertically long rectangular frame whose dimension in the X-axis direction is shorter than its dimension in the Y-axis direction.

[0043] The upper and lower horizontal frames 74 also function as horizontal connecting parts that connect both ends in the vertical direction (up and down direction) of the outdoor panel 71 and the indoor panel 72, and are arranged so that they are symmetrical up and down. Each horizontal frame 74 has an indoor-facing surface 741 that faces the interior of the room, a visible surface 742 that extends from the inner vertical end of the indoor-facing surface 741 to the outside of the room along the Z-axis direction, and an outdoor-facing surface 743 that extends from the tip of the visible surface 742 to the inside and outside in the up and down direction along the Y-axis direction.

[0044] The left and right vertical frames 75 also function as vertical connecting parts that connect both horizontal (left-right) ends of the outdoor panel 71 and the indoor panel 72, and are arranged symmetrically. Each vertical frame 75 includes an indoor-facing surface 751 that faces the interior of the room, a visible surface 752 that extends from the inner left-right edge of the indoor-facing surface 751 to the outside of the room along the Z-axis direction, and an outdoor-facing surface 753 that extends from the tip of the visible surface 752 to the inside left-right direction along the Y-axis direction.

[0045] A panel mounting portion 67 is provided on each of the visible surface portions 742, 752 of the frames 74, 75 at a position on the indoor side. An outdoor panel 71 that closes the opening on the indoor side is fixed to the frame body 73 so that the outdoor visible surfaces 743, 753 are in surface contact with each other. An indoor panel 62 that covers the opening on the indoor side is fixed to the frame body 73 so that the outdoor surface of the indoor panel main body 621 is positioned on the same plane as the indoor visible surfaces 741, 751 of the frame body 73, and airtightness is maintained between each protruding piece 622 and each visible surface 742, 752.

[0046] The frame body 73 is provided with a sheet mounting portion 68. The four sheet mounting base members 681 have base portions 683 fixed to the projecting surface portions 742, 752 of the frames 74, 75 with screws 685 so that the position of each sheet mounting piece 684 in the Z axis direction is centered in the Z axis direction. The outer periphery of the heat shielding sheet 44 is fixed to the frame 73 by the same structure as in the second embodiment. With the heat shielding sheet 44 fixed in this manner, the enclosed space S3 is partitioned at approximately the center in the Z-axis direction between the outdoor enclosed space S31 and the indoor enclosed space S32 so that gas does not move between them. Also, as in the second embodiment, the heat shielding sheet 44 can be easily fixed.

[0047] <Advantages of the third embodiment> According to the third embodiment, the sealed space S3 of the panel unit 7 is divided into an outdoor sealed space S31 and an indoor sealed space S32 by a heat-shielding sheet 44, thereby providing a panel unit 7 with excellent insulation performance, and making installation easier than a configuration in which rock wool is filled in the sealed space S3 to improve insulation performance. Since the heat shielding sheet 44 is fixed to the left and right horizontal frames 74 and the left and right vertical frames 75, the transfer of heat between the heat shielding sheet 44 and the horizontal frames 74 and vertical frames 75 can be suppressed. Furthermore, the same effect as that of (4) in the first embodiment can be achieved.

[0048] [Variations] In the first embodiment, the indoor-side mounting portions 422 and the outdoor-side mounting portions 412 are mounted with the insulating material 46 sandwiched therebetween, but they may also be mounted without the insulating material 46 sandwiched therebetween. In the first, second and third embodiments, at least one of the outdoor panel 41, 61, 71 and the indoor panel 42, 62, 62 does not have to have light blocking properties. In the first, second and third embodiments, the indoor side panels 42, 62, 62 do not necessarily have to be provided. In the first, second and third embodiments, for example, holes such as slits may be formed in the indoor panels 42, 62, 62, so that the indoor panels 42, 62, 62 do not form indoor sealed spaces S12, S22, S32, and in this case, the outdoor panels 41, 61, 71 do not need to have light-blocking properties. In the first, second and third embodiments, the heat-shielding sheet 44 is provided approximately in the center of the projected direction of the enclosed spaces S1, S2 and S3 in the ventilation panel unit 2 or panel units 6 and 7, but it may also be provided in a position close to the outside or inside of the room.

[0049] In the first embodiment, the heat shield sheet 44 is fixed to the second indoor-facing surface 425 of the indoor-side panel 42 , but it may also be fixed to the second outdoor-facing surface 415 of the outdoor-side panel 41 . Furthermore, in the first embodiment, the heat shielding sheet 44 may be fixed to the second indoor-facing surface 425 of the indoor-side panel 42 or the second outdoor-facing surface 415 of the outdoor-side panel 41, without being fixed to the upper and lower closing members 48, or may be fixed to the upper and lower closing members 48, without being fixed to the second indoor-facing surface 425 of the indoor-side panel 42 or the second outdoor-facing surface 415 of the outdoor panel 41. Similarly, in the second and third embodiments, the heat shielding sheet 44 may be fixed to one of the pair of horizontal frames 64, 74 and the pair of vertical frames 65, 75, without being fixed to the other. However, from the viewpoint of appropriately fixing the heat shielding sheet 44, it is preferable to fix the heat shielding sheet 44 to a portion of the ventilation panel unit 2 or the panel unit 6, 7 that is longer in the circumferential direction. In the first embodiment, both ends of the heat shielding sheet 44 in the vertical direction may be folded and the folded portions may be closed and screwed to the main body 481, or both ends of the heat shielding sheet 44 in the left-right direction may be folded and the folded portions may be screwed to the second outdoor visible surface portion 415 and the first indoor visible surface portion 423. Similarly, in the second and third embodiments, both ends of the heat shielding sheet 44 in the vertical direction may be folded and the folded portions may be screwed to the respective visible surfaces 644, 742, or both ends of the heat shielding sheet 44 in the left-right direction may be folded and the folded portions may be screwed to the respective visible surfaces 654, 752.

[0050] An exterior body having a configuration similar to that of the ventilation panel unit 2 and the panel units 6, 7 may be used as a sash for closing an opening provided in a wall of a building, or as an aluminum curtain wall. In the first embodiment, at least one of panel units 6 and panel unit 7 may be arranged instead of ventilation panel unit 2, so that curtain wall 1 comprises ventilation panel unit 2 and at least one of the panel units. In the second embodiment, in at least one of the first combination of the indoor horizontal member 641 and the outdoor horizontal member 642 and the second combination of the indoor vertical member 651 and the outdoor vertical member 652, the members do not need to be attached to each other via insulating material 46. In the first embodiment, instead of the shoji screen 4, a configuration similar to the panel unit 6 of the second embodiment or the panel unit 7 of the third embodiment may be attached to the frame body 3 so that the opening in the frame body 3 can be opened and closed.

[0051] [Summary of the invention] The exterior body of the present invention is characterized by comprising an outdoor panel, a heat-shielding sheet, and a connecting portion that connects the outdoor panel and the heat-shielding sheet so that an outdoor-side sealed space is formed between the outdoor panel and the heat-shielding sheet. According to the present invention, an outdoor sealed space is formed between the outdoor panel of the exterior body and the heat shield sheet, which makes it possible to suppress heat transfer between the indoor and outdoor spaces, thereby providing an exterior body with excellent thermal insulation performance.

[0052] The exterior body of the present invention preferably includes an indoor-side panel connected to the connecting portion so as to form an indoor-side sealed space between the indoor-side panel and the heat-shielding sheet. According to the present invention, an indoor-side sealed space is formed between the indoor-side panel and the heat-shielding sheet, thereby further suppressing the transfer of heat between the outside and inside of the room.

[0053] In the exterior body of the present invention, it is preferable that the connecting portion comprises a pair of horizontal connecting portions connected to both vertical ends of the outdoor panel and a pair of vertical connecting portions connected to both horizontal ends, and that the heat-shielding sheet is connected to at least one of the pair of horizontal connecting portions and the pair of vertical connecting portions. According to the present invention, it is possible to suppress the transfer of heat between the heat shield sheet and the portions of the pair of horizontal connecting portions and the pair of vertical connecting portions to which the heat shield sheet is fixed.

[0054] In the exterior body of the present invention, it is preferable that at least one of the parts is provided with a sheet mounting piece extending toward the center of the outdoor enclosed space, and the heat-shielding sheet is fixed to the sheet mounting piece by a fixing device attached from the indoor side or the outdoor side. According to the present invention, the heat shield sheet can be easily fixed from either the indoor or outdoor side.

[0055] In the exterior body of the present invention, it is preferable that the heat shield sheet is provided at approximately the center in the prospective direction of the space between the outdoor panel and the indoor panel. According to the present invention, the projected dimensions of the outdoor enclosed space and the indoor enclosed space are approximately equal, so that an exterior body having excellent insulating performance can be provided whether the outdoor temperature is higher or lower than the indoor temperature.

[0056] In the exterior body of the present invention, the outdoor panel preferably has a light-blocking property. According to the present invention, the transfer of heat between the outside and the inside of the room can be further suppressed.

[0057] In the exterior body of the present invention, the indoor side panel preferably has a light-blocking property. According to the present invention, the transfer of heat between the outside and the inside of the room can be further suppressed.

[0058] In the exterior body of the present invention, it is preferable that the outdoor panel comprises an outdoor panel main body and a pair of outdoor mounting portions extending toward the indoor side from positions spaced apart in one of the horizontal and vertical directions on the outdoor panel main body, the indoor panel comprises an indoor panel main body and a pair of indoor mounting portions extending toward the outdoor side from positions spaced apart in the one direction on the indoor panel main body and mounted respectively to the pair of outdoor mounting portions, the connecting portion comprises a pair of blocking members that block openings formed on both sides of the outdoor panel and the indoor panel in the other of the horizontal and vertical directions, and the heat-shielding sheet is fixed to at least one of the pair of outdoor mounting portions and the pair of blocking members, or at least one of the pair of indoor mounting portions and the pair of blocking members. According to the present invention, in a configuration in which a heat shielding sheet is fixed to at least one of a pair of indoor-side mounting portions and a pair of blocking members, the exterior body can be assembled in a simple manner by integrating the indoor-side panel, the pair of blocking members, and the heat shielding sheet, and then attaching the outdoor-side panel to the integrated assembly. Similarly, in a configuration in which a heat shielding sheet is fixed to at least one of a pair of outdoor-side mounting portions and a pair of blocking members, the exterior body can be assembled in a simple manner.

[0059] In the exterior body of the present invention, it is preferable that the pair of indoor-side mounting portions are respectively mounted to the pair of outdoor-side mounting portions with an insulating material sandwiched therebetween. According to the present invention, heat transfer between the indoor-side mounting portion and the outdoor-side mounting portion can be suppressed, and the heat insulating performance of the exterior body can be improved.

[0060] In the exterior body of the present invention, it is preferable that at least one of the pair of horizontal connecting portions and the pair of vertical connecting portions comprises an indoor connecting portion and an outdoor connecting portion attached to the indoor connecting portion with an insulating material sandwiched therebetween. According to the present invention, heat transfer between the indoor-side connecting portion and the outdoor-side connecting portion can be suppressed, and the heat insulating performance of the exterior body can be improved.

[0061] In the exterior body of the present invention, it is preferable that the exterior body comprises a shoji screen composed of the outdoor panel, the indoor panel, the connecting portion and the heat-shielding sheet, and a frame body having an opening, and the shoji screen is attached to the frame body so that the opening can be opened and closed. According to the present invention, the room can be ventilated by opening the shoji screen. [Explanation of symbols]

[0062] 2...Ventilation panel unit (exterior body), 3...Frame body, 4...Shoji screen, 6,7...Panel unit (exterior body), 41,61,71...Outdoor panel, 42,62...Indoor panel, 43...Connecting part, 44...Heat-shielding sheet, 46...Insulating material, 48...Covering member (horizontal connecting part), 63,73...Frame body (connecting part), 64,74...Horizontal frame (horizontal connecting part), 65,75...Vertical frame (vertical connecting part), 412...Outdoor mounting part (vertical connecting part), 422...Indoor Inner mounting part (vertical connecting part), 427, 492, 684...sheet mounting pieces, 496, 686...screws (fixing devices), 641...indoor horizontal member (indoor connecting part), 642...outdoor horizontal member (outdoor connecting part), 651...indoor vertical member (indoor connecting part), 652...outdoor vertical member (outdoor connecting part), S1, S2, S3...enclosed space, S11, S21, S31...outdoor enclosed space, S12, S22, S32...indoor enclosed space.

Claims

1. The exterior panel, Heat-shielding sheet and an exterior body comprising: a connecting portion that connects the outdoor panel and the heat shield sheet so that an outdoor sealed space is formed between the outdoor panel and the heat shield sheet;

2. The exterior body according to claim 1, An exterior body comprising an indoor-side panel connected to the connecting portion so as to form an indoor-side sealed space between the indoor-side panel and the heat-shielding sheet.

3. The exterior body according to claim 1 or 2, The connecting portion includes a pair of horizontal connecting portions connected to both vertical end portions of the outdoor panel and a pair of vertical connecting portions connected to both horizontal end portions, The heat shield sheet is connected to at least one of the pair of horizontal connecting portions and the pair of vertical connecting portions.

4. The exterior body according to claim 3, At least one of the portions is provided with a sheet attachment piece extending toward the center of the outdoor enclosed space, The heat shield sheet is fixed to the sheet mounting piece by a fastener attached from the inside or outside of the room.

5. The exterior body according to claim 2, The heat-shielding sheet is provided at approximately the center of the space between the outdoor panel and the indoor panel in the forward direction of the exterior body.

6. The exterior body according to claim 1, The exterior panel is an exterior body having light-blocking properties.

7. The exterior body according to claim 2, The interior panel is an exterior body having light-blocking properties.

8. The exterior body according to claim 2, The outdoor panel includes an outdoor panel main body and a pair of outdoor mounting portions extending toward the indoor side from positions spaced apart from each other in one of the horizontal and vertical directions on the outdoor panel main body, The indoor-side panel includes an indoor-side panel main body and a pair of indoor-side mounting portions extending to the outdoor side from positions spaced apart from each other in the one direction on the indoor-side panel main body and attached to the pair of outdoor-side mounting portions, respectively; the connecting portion includes a pair of closing members that close openings formed on both sides of the outdoor panel and the indoor panel in the other of the horizontal and vertical directions, The heat-shielding sheet is fixed to at least one of the pair of outdoor mounting portions and the pair of blocking members, or to at least one of the pair of indoor mounting portions and the pair of blocking members, in an exterior body.

9. The exterior body according to claim 8, The pair of indoor-side mounting portions are respectively attached to the pair of outdoor-side mounting portions with insulating material sandwiched therebetween.

10. The exterior body according to claim 3, An exterior body, wherein at least one of the pair of horizontal connecting portions and the pair of vertical connecting portions comprises an indoor side connecting portion and an outdoor side connecting portion attached to the indoor side connecting portion with an insulating material sandwiched therebetween.

11. The exterior body according to claim 2, a shoji screen constituted by the outdoor panel, the indoor panel, the connecting portion, and the heat-shielding sheet; a frame body having an opening, The shoji screen is attached to the frame so as to be able to open and close the opening.

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