Opening building materials

Abstract

To provide an opening building material which is excellent in design without allowing a surface material unit to be visually recognized in view both from the outdoor side and from the indoor side.SOLUTION: The opening building material includes the frame body adapted to be mounted to the inner periphery side of a body opening of a building, and formed by doing framework of an upper frame, a lower frame, and right and left vertical frames, at least one surface material unit adapted to be mounted to the inner periphery side of the frame body in a slidably movable manner, and formed by doing framework of an upper frame, a lower frame, and light and left vertical frames, an outdoor side wall part and an indoor side wall part provided on the outdoor side and on the indoor side of the frame body, respectively, for shielding the inner periphery side of the frame body while leaving a window opening, and a storage space part formed between the outdoor side wall part and the indoor side wall part to store the surface material unit of which the window opening is set in a fully opened state.SELECTED DRAWING: Figure 3

Description

Technical Field

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[0001] The present disclosure relates to building materials for openings.

Background Art

[0002] Conventionally, there is known a fitting comprising a single-slide door in which a shoji is slidably disposed inside a frame (see, for example, Patent Document 1). This fitting has an opening frame that covers the upper, lower, left, and right frames of the shoji in the fully closed state from the indoor side. According to this fitting, since the upper, lower, left, and right frames of the shoji are not visible from the indoor side, the design property is enhanced.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the conventional fitting, since one of the left and right regions inside the frame is covered by the building structure from the indoor side, the fully opened shoji that has moved to one region of the frame is disposed on the outdoor side of the building structure. Therefore, there is a problem in the design property when the fitting is viewed from the outdoor side.

[0005] An object of the present disclosure is to provide a building material for an opening that is excellent in design property and in which the facing material unit is not visible when viewed from either the outdoor side or the indoor side.

Means for Solving the Problems

[0006] The opening building material of this disclosure comprises: a frame body formed by framing an upper frame, a lower frame, and left and right vertical frames; at least one panel unit slidably attached to the inner circumference side of the frame body and formed by framing an upper frame, a lower frame, and left and right vertical frames; an outer wall portion and an inner wall portion provided on the outer and inner sides of the frame body, respectively, which shield the inner circumference side of the frame body while leaving a window opening; and a storage space portion formed between the outer wall portion and the inner wall portion, which houses the panel unit with the window opening fully open. [Brief explanation of the drawing]

[0007] [Figure 1] This is a view of the building materials for an opening from the outside. [Figure 2] This is a view of the opening's building materials from the interior side. [Figure 3] This is a longitudinal cross-section along line AA shown in Figure 1. [Figure 4] This is a cross-sectional view along line BB shown in Figure 1. [Figure 5] This is a cross-sectional view along the CC line shown in Figure 1. [Figure 6] This is a perspective view of an opening unit of an opening building material, seen from the outside. [Figure 7] This is an exploded perspective view of a surface material unit for opening building materials. [Figure 8] This is a perspective view from the outside of the building, showing the mounting structure of the facing material unit to the facing material unit movement mechanism. [Figure 9] This is a rear view, seen from the interior side, of the mounting structure of the panel unit to the panel unit movement mechanism. [Figure 10] This is a functional block diagram of building materials for openings. [Figure 11] This is a vertical cross-sectional view illustrating how the panel unit slides downward. [Figure 12] This is a vertical cross-sectional view showing a magnified view of the upper part of a window opening in a building material. [Figure 13] This is a vertical cross-sectional view showing a magnified view of the lower part of a window opening in a building material. [Figure 14]This is a cross-sectional view showing an enlarged view of one vertical portion of a window opening in a building material. [Figure 15] This is a cross-sectional view showing an enlarged view of the other vertical portion of the window opening in the building material. [Figure 16] This is a vertical cross-sectional view showing the removal of the decorative member from the exterior wall portion of an opening in a building. [Figure 17] This is a cross-sectional view showing the removal of decorative and cover members from the exterior wall portion of an opening in a building material. [Figure 18] This is a view from the outside of the building, showing the exterior wall portion of an opening with all decorative and cover members removed. [Figure 19] This is a view from the outside of an opening building material where the facing unit slides horizontally and is stored in the storage space. [Figure 20] This is a view from the exterior of an opening building material where the facing unit slides upward and is stored in the storage space. [Modes for carrying out the invention]

[0008] Hereinafter, embodiments of the opening building material of this disclosure will be described in detail with reference to the drawings. The opening building material 1 includes an opening unit 2 that is installed on the inside of a building frame opening 101, and an exterior wall portion 3 and an interior wall portion 4 that are provided on the exterior and interior sides of the building frame opening 101, respectively.

[0009] In the diagram, the direction along X1-X2 indicates the interior-exterior direction of the opening material 1. The X1 direction indicates the exterior side of the opening material 1, and the X2 direction indicates the interior side of the opening material 1. Figure 1 is a view of the opening material 1 from the exterior side, and Figure 2 is a view of the opening material 1 from the interior side. The top and bottom of each figure correspond to the top and bottom along the vertical direction of the opening material 1. In the opening material 1, the visible surface is the surface facing the exterior and interior sides, respectively, and the visible direction is the direction along the visible surface. In the opening material 1, the depth surface is the surface arranged along the interior-exterior direction.

[0010] The building body opening 101 is rectangularly opened in the building body 100 to communicate in the indoor-outdoor direction. The building body opening 101 of the present embodiment is formed in a vertically long shape where the height dimension is larger than the width dimension . The outdoor side wall portion 3 and the indoor side wall portion 4 are provided so as to cover the outdoor side and the indoor side surfaces of the building body 100 including the edge portions extending over the four circumferences of the building body opening 101 respectively.

[0011] The opening unit 2 has a frame body 20 and a plurality of face material units 5 attached to the inner peripheral side of the frame body 20. The opening unit 2 is housed inside the building body opening 101 from the outdoor side with the face material unit 5 attached to the inner peripheral side of the frame body 20. The opening unit 2 is fixed to the building body 100 by fixing screws 202 passing through the flange portion 201 integrally provided on the outer periphery of the frame body 20.

[0012] The frame body 20 is configured by framing an upper frame 21, a lower frame , and left and right vertical frames 23 into the same rectangle as the building body opening 101. The upper frame 21 is arranged at the upper end portion of the building body opening 101 and extends in the left-right direction of the building body opening 101. The lower frame 22 is arranged at the lower end portion of the building body opening 101 and extends in the left-right direction of the building body opening 101. The left and right vertical frames 23 are arranged at the left and right end portions of the building body opening 101 and extend in the up-down direction of the building body opening 101. The inner region of the frame body 20 is divided into an upper window region R1 and a lower storage region R2.

[0013] As shown in FIGS. 1 to 6, a storage space portion 203 is formed in the storage region R2 of the inner peripheral side region of the frame body 20. The storage space portion 203 is a space for storing the face material unit 5 provided in the opening unit 2. The storage space portion 203 is shielded from the outdoor side and the indoor side by shielding plates 24 and 25 respectively.

[0014] The facing unit 5 is positioned on the inner circumference of the frame 20. As shown in Figures 3 and 4, the opening unit 2 of this embodiment has three facing units 5A, 5B, and 5C. The three facing units 5A, 5B, and 5C are the same size and are arranged side by side facing the interior and exterior directions of the opening unit 2. In this embodiment, the facing unit 5A, positioned on the outermost side, is made up of a sunshade louver. The facing unit 5B, positioned in the center, is made up of a screen door. The facing unit 5C, positioned on the interior side, is made up of a glass door. In the following description, when a description is common to facing units 5A, 5B, and 5C, it will simply be referred to as facing unit 5. In Figure 6, facing units 5A, 5B, and 5C are each cut vertically, and only the rightmost side is shown when viewed from the exterior.

[0015] As shown in Figure 7, the panel unit 5 is constructed by fitting a panel 54, corresponding to the type of panel unit 5, onto the inner perimeter of a rectangular frame body 50 that extends around all four sides. The frame body 50 is constructed by assembling an upper frame 51, a lower frame 52, and left and right vertical frames 53 into a rectangular frame. The panel 54 is fixed to the inner perimeter of the frame body 50 by four trim pieces 55 on the top, bottom, left, and right sides that are attached to the frame body 50 from the exterior side.

[0016] The size of the facing unit 5 is smaller than the size of the inner circumference of the frame 20. More specifically, the width of the facing unit 5 is slightly smaller than the left-right width of the inner circumference of the frame 20. The height of the facing unit 5 is approximately half the height of the inner circumference of the frame 20. Figure 7 shows an example of a facing unit 5C made of glass, but the other facing units 5A and 5B have a similar configuration except for the type of facing material 54.

[0017] The upper frame 51, the lower frame 52, and the left and right vertical frames 53 each have a protruding wall portion that projects toward the outer periphery in the visible direction of the frame body 50. Specifically, the upper frame 51 has a protruding wall portion 511 that extends upward from the outer end. The lower frame 52 has a protruding wall portion 521 that extends downward from the outer end. The left and right vertical frames 53 each have protruding wall portions 531 that extend outward to the left and right from the outer ends. The protruding wall portions 511, 521, and 531 extend along the entire length of the upper frame 51, the lower frame 52, and the vertical frames 53.

[0018] The exterior wall section 3 and the interior wall section 4 are provided on the exterior and interior surfaces of the building frame 100. The exterior wall section 3 and the interior wall section 4 each have a side wall body 31, 41 and decorative members 32, 42.

[0019] The side wall sections 31 and 41 are wall panels that form the exterior and interior front wall surfaces of the building frame 100, respectively. The side wall sections 31 and 41 have rectangular side wall openings 311 and 411 that are positioned on either side of the opening unit 2, which is installed inside the frame opening 101. The side wall sections 31 and 41 completely cover the storage area R2 in the inner circumferential region of the frame 20. The side wall openings 311 and 411 are positioned in the window area R1 in the inner circumferential region of the frame 20.

[0020] In this embodiment, the exterior side wall opening 311 is slightly wider and taller than the interior side wall opening 411. More specifically, the width and height of the exterior side wall opening 311 are greater than the width and height of the facing unit 5, respectively. Therefore, the exterior side wall opening 311 allows the facing unit 5 to pass through its inner circumference. In contrast, the width and height of the interior side wall opening 411 are approximately the same as the width and height of the facing unit 5, respectively. The side wall openings 311 and 411 connect the exterior and interior sides with the window area R1 space in between.

[0021] The decorative members 32 and 42 are arranged in a rectangular frame shape along the four perimeters of the inner edges of the side wall openings 311 and 411. The window opening 103 of the opening building material 1 is formed along the inner perimeters of the decorative members 32 and 42. The decorative members 32 and 42 are arranged along the perimeter of the window opening 103, respectively, forming the opening frame on the exterior and interior sides of the window opening 103. As shown in Figures 1 to 4, the window opening 103 has the same opening area when viewed from the exterior and interior sides. As shown in Figures 3 and 4, the positions of the inner perimeter surfaces 32a and 42a of the decorative members 32 and 42 when viewed from the exterior and interior sides are the same as or on the interior side in the visible direction of the inner edge 50a of the frame body 50 of the facing material unit 5. Therefore, the frame body 50 extending around all four sides of the facing material unit 5 is covered and hidden from both the exterior and interior sides by the decorative members 32 and 42.

[0022] As shown in Figures 3 and 4, the decorative member 32 of the exterior wall section 3 is assembled in a rectangular frame shape along the inner periphery of the exterior side wall opening 311 by an upper decorative member 321, a lower decorative member 322, and left and right vertical decorative members 323. The upper decorative member 321, the lower decorative member 322, and the left and right vertical decorative members 323 are each formed from a hollow molded material with a rectangular cross-section that extends along each side of the side wall opening 311. The upper decorative member 321, the lower decorative member 322, and the left and right vertical decorative members 323 that constitute the decorative member 32 are prepared in advance in various sizes, and a size corresponding to the wall thickness on the exterior side of the opening unit 2, that is, the wall thickness of the side wall section body 31 and the insulation member 6 described later, can be selected and used. In this way, the decorative member 32 can accommodate various wall thicknesses.

[0023] The decorative member 42 of the interior wall portion 4 is assembled in a rectangular frame shape along the inner periphery of the interior side wall opening 411 by an upper decorative member 421, a lower decorative member 422, and left and right vertical decorative members 423. The upper decorative member 421, the lower decorative member 422, and the left and right vertical decorative members 423 are each formed by plate-shaped frame members that extend along each side of the side wall opening 411.

[0024] As shown in Figure 12, the upper decorative member 321 of the decorative member 32 has a hollow decorative member body 3211 and a protruding wall portion 3212 that protrudes upward from the outdoor end of the decorative member body 3211. The outdoor surface 321a of the upper decorative member 321 is formed across the decorative member body 3211 and the protruding wall portion 3212. The outdoor surface 21a of the upper frame 21, which is exposed in the side wall opening 311, is provided with a pair of upper and lower mounting wall portions 211 and 212 that protrude parallel to the outdoor side. The upper decorative member 321 is detachably attached to the upper frame 21 by engaging a pair of engaging pieces 3213 and 3214 that protrude inward from the decorative member body 3211 and the protruding wall portion 3212 with the mounting wall portions 211 and 212.

[0025] As shown in Figure 13, the lower decorative member 322 of the decorative member 32 has a hollow decorative member body 3221 and a protruding wall portion 3222 that protrudes downward from the outdoor end of the decorative member body 3221. The outdoor surface 322a of the lower decorative member 322 is formed across the decorative member body 3221 and the protruding wall portion 3222. The surface 24a of the shielding plate 24 exposed in the side wall opening 311 is provided with a pair of upper and lower mounting wall portions 241 and 242 that protrude parallel to the outdoor side. The lower decorative member 322 is detachably attached to the upper end of the shielding plate 24 by engaging a pair of engaging pieces 3223 and 3224 that protrude inward from the decorative member body 3221 and the protruding wall portion 3222 with the mounting wall portions 241 and 242.

[0026] As shown in Figures 14 and 15, the vertical decorative member 323 of the decorative member 32 has a hollow decorative member body 3231 and protruding wall portions 3232 that project outward to the left and right from the outdoor end of the decorative member body 3231. The outdoor-facing surface 323a of the vertical decorative member 323 is formed across the decorative member body 3231 and the protruding wall portions 3232. The outdoor-facing surface 23a of the vertical frame 23 exposed in the side wall opening 311 is provided with a pair of left and right mounting wall portions 231 and 232 that project parallel to the outdoor side. The vertical decorative member 323 is detachably attached to the vertical frame 23 by engaging a pair of engaging pieces 3233 and 3234 that project inward from the decorative member body 3231 and the protruding wall portions 3232 with the mounting wall portions 231 and 232.

[0027] As shown in Figures 4, 14, and 15, the left and right vertical frames 23 exposed within the side wall opening 311 are provided with cover material 233 that conceal at least a portion of the left and right vertical frames 53 of the frame body 50 of the panel unit 5 from the outside. The cover material 233 extends between the upper frame 21 and the upper end of the shielding plate 24 on the outside. The inner end 233a of the cover material 233 is positioned on the outer circumference in the visible direction, relative to the position of the inner peripheral edge 50a of the vertical frame 53 and the position of the inner peripheral surface 32a of the vertical decorative member 323. Therefore, the cover material 233 is concealed by the vertical decorative member 323. The vertical frame 23 is provided with mounting pieces 234 that protrude on the inner circumference in the visible direction, at positions above the upper frame 51 and below the lower frame 52 of the panel unit 5. The cover material 233 is attached to the mounting piece 234 by mounting screws 235, which are screwed into the mounting piece 234, so that it can be attached and detached from the outside.

[0028] As shown in Figures 12 to 15, a sealing material 34 is provided along the inner circumferential surface of the side wall opening 311 on the exterior side. The sealing material 34 is provided so as to surround the outer periphery of the window opening 103. Specifically, the sealing material 34 seals the gaps between the side wall opening 311 and the mounting wall portion 212 of the upper frame 21, the mounting wall portion 242 of the shielding plate 24, and the mounting wall portions 232 of the left and right vertical frames 23. The protruding wall portions 3212, 3222, and 3232 of the upper decorative member 321, the lower decorative member 322, and the left and right vertical decorative members 323 extend further outward in the visible direction than the engaging pieces 3214, 3224, and 3234, covering and concealing the sealing material 34 from the exterior side.

[0029] The exterior-facing surfaces 321a, 322a, and 323a of the upper decorative member 321, the lower decorative member 322, and the left and right vertical decorative members 323 may be painted or fitted with a surface material having the same color and texture as the surface of the side wall body 31. This allows for a novel design that, when viewed from the outside, makes the side wall body 31 and the decorative members 32 appear as the same wall surface without distinction, giving the impression that the surface material unit 5 has been embedded into the exterior wall surface itself.

[0030] A panel unit moving mechanism 26 is provided on the inner circumference of the frame 20 to slide the panel unit 5 upward and downward. The panel unit moving mechanisms 26 are located on the inner circumference of the left and right vertical frames 23 of the frame 20, and on the left and right outer sides of the panel unit 5. The same number of panel unit moving mechanisms 26 are provided on each side, sandwiching the panel unit 5 from the left and right, corresponding to the number of panel units 5. In this embodiment, a total of six panel unit moving mechanisms 26 are arranged, three for each of the three panel units 5A, 5B, and 5C, on the inner circumference of the left and right vertical frames 23, and on the left and right outer sides of the panel unit 5.

[0031] As shown in Figures 8 and 9, the panel unit moving mechanism 26 includes a guide rail 261 extending along the length of the vertical frame 23, a ball screw 262 positioned parallel to the inside of the guide rail 261 and extending along the length of the vertical frame 23, a mounting portion 263 for attaching the panel unit 5, a motor 264 which is a drive source for rotating the ball screw 262, and support members 265 which support the upper and lower ends of the guide rail 261 and the ball screw 262, respectively. Two mounting portions 263 are provided on one panel unit moving mechanism 26, separated vertically. The support members 265 rotatably support the ball screw 262.

[0032] The mounting portion 263 is a plate-shaped member that protrudes toward the inner circumference of the frame 20. The mounting portion 263 has a mounting portion body 263a that screws onto the ball screw 262, an engaging portion 263b that protrudes from the mounting portion body 263a toward the guide rail 261 and engages with the guide rail 261 so as to be slidable up and down, and a fixing piece 263c that protrudes from the mounting portion body 263a toward the surface material unit 5 and fixes the surface material unit 5.

[0033] The two mounting parts 263 secure the panel unit 5 by sandwiching it from above and below. Specifically, the fixing piece 263c of the upper mounting part 263 is positioned in contact with the visible surface 51a of the upper frame 51 of the panel unit 5. The fixing piece 263c of the lower mounting part 263 is positioned in contact with the visible surface 52a of the lower frame 52 of the panel unit 5. The upper frame 51 and the lower frame 52 are fixed to the fixing pieces 263c, respectively, by fixing screws 266 that penetrate the protruding wall portions 511 and 521 from the exterior side. As a result, the panel unit 5 is positioned between the left and right panel unit moving mechanisms 26.

[0034] The opening unit 2 of this embodiment has three panel unit moving mechanisms 26 on the inner circumference side of each of the left and right vertical frames 33. The two motors 264 of the left and right panel unit moving mechanisms 26 rotate synchronously in forward and reverse directions. The left and right panel unit moving mechanisms 26 that fix one panel unit 5 rotate synchronously in forward and reverse directions by rotating the two motors 264 synchronously in forward and reverse directions. When the ball screws 262 rotate in forward and reverse directions, the mounting portion 263 slides up and down along the guide rail 261, causing the panel unit 5 to slide upward and downward. In this embodiment, the two motors 264 of the left and right panel unit moving mechanisms 26 that fix the panel unit 5A are designated as the first motor 264A, the two motors 264 of the panel unit moving mechanism 26 that fix the panel unit 5B are designated as the second motor 264B, and the two motors 264 of the panel unit moving mechanism 26 that fix the panel unit 5C are designated as the third motor 264C.

[0035] The first motor 264A, the second motor 264B, and the third motor 264C are each controlled by a motor control device 250 provided on the opening unit 2, as shown in Figure 10. The user can selectively rotate the first motor 264A, the second motor 264B, and the third motor 264C in forward and reverse directions by operating a portable or wall-mounted remote controller 300. This allows the user to independently slide any of the panel units 5A, 5B, and 5C upwards and downwards. For example, when the panel units 5A, 5B, and 5C are positioned in the fully closed position that closes the window opening 103, if the user rotates the third motor 264C in the reverse direction using the remote controller 300, only the panel unit 5C slides downwards, which is the opening direction, and is stored in the storage space 203, as shown in Figure 11. When the panel unit 5C is completely stored in the storage space 203, the panel unit 5C is no longer visible from both the outside and inside. Conversely, when the user rotates the third motor 264C in the forward direction, only the surface material unit 5C slides upward from within the storage space 203 in the closing direction.

[0036] The panel unit 5 can be easily removed from the panel unit moving mechanism 26 by removing the fixing screws 266 from the exterior side. This allows for maintenance, replacement, etc., of the panel unit 5. When multiple panel units 5A, 5B, and 5C are provided as in this embodiment, the multiple panel units 5A, 5B, and 5C can be independently slidably and detachably attached by the panel unit moving mechanism 26. Therefore, the number of panel units 5 can be adjusted by independently removing any panel unit 5 from the panel unit moving mechanism 26.

[0037] As shown in Figures 1 and 2, the panel unit 5 positioned in the fully closed position closes the window opening 103. In this state, the frame 50 extending around all four sides of the panel unit 5 facing the inner perimeter of the window opening 103 is covered by the exterior wall portion 3 and the interior wall portion 4, and is not visible from either the exterior or interior side.

[0038] As shown in Figures 3 and 4, insulating members 6 are placed in the gaps between the opening unit 2 and the exterior wall portion 3 and the interior wall portion 4, respectively. In particular, as shown in Figure 5, by placing insulating members 6 on the exterior and interior sides of the storage space 203, the thermal insulation performance of the storage space 203, which has poor thermal insulation performance, can be improved. Specific examples of insulating members 6 include resin foam and vacuum insulation material. In particular, vacuum insulation material can ensure a certain level of thermal insulation performance even with a thin thickness, so by constructing the insulating members 6 on the exterior and interior sides of the storage space 203 with vacuum insulation material, the thermal insulation performance of the storage space 203 can be effectively improved.

[0039] Next, the method for removing the panel unit 5 will be explained with reference to Figures 16 to 18. First, as shown in Figures 16 and 17, the upper decorative member 321, the lower decorative member 322, and the left and right vertical decorative members 323 are removed from the outside. After removing the vertical decorative members 323, the mounting screws 235 that attach the cover material 233 are removed from the outside, and the cover material 233 is removed. As a result, as shown in Figure 18, the side wall opening 311 on the outside is widely opened, and the entire outermost panel unit 5A is exposed to the outside. Figure 18 shows the right vertical frame 53 of the panel unit 5A that is exposed in the side wall opening 311, but the left vertical frame 53 of the panel unit 5A is similarly exposed in the side wall opening 311.

[0040] Next, the fixing screws 266 that secure the panel unit 5A to the panel unit moving mechanism 26 are removed from the outside. This removes the panel unit 5A from the panel unit moving mechanism 26. The panel unit 5A, removed from the panel unit moving mechanism 26, is taken out to the outside through the side wall opening 311. Panel units 5B and 5C can be removed from the panel unit moving mechanism 26 in the same manner.

[0041] Although one embodiment of the opening building material of this disclosure has been described above, the opening building material of this disclosure is not limited to the above embodiment, and design modifications are possible without departing from the gist of this disclosure. For example, the facing unit is not limited to one that is stored in the storage space by sliding downward. The facing unit may be provided to be stored in the storage space 203 by sliding upward, as shown in the facing unit 5 of the opening building material 1A in Figure 19. The direction of movement of the facing unit is not limited to the vertical direction. The facing unit may be provided to be stored in the storage space 203 by sliding left and right, as shown in the facing unit 5 of the opening building material 1B in Figure 20.

[0042] The number and types of facing units 5 attached to the opening unit 2 are not limited to those shown in this embodiment. At least one facing unit 5 is sufficient for the opening unit 2 to be attached. The opening building material of this disclosure allows for appropriate adjustment of the number of facing units 5 and facing unit moving mechanisms 26 provided in the opening unit 2, depending on the overall wall thickness of the building frame 100 in the interior and exterior directions. Therefore, the opening building material of this disclosure is compatible with houses having various wall thicknesses.

[0043] The multiple facing units 5 attached to the opening unit 2 are not limited to having different functions, and may each have any function. Therefore, two or more, or all, of the multiple facing units 5 may have the same function.

[0044] In the above embodiment, the exterior decorative member 32 is detachably provided so that the panel unit 5 can be attached and removed from the exterior side, but the embodiment is not limited to this. The interior decorative member 42 may also be detachably provided so that the panel unit 5 can be attached and removed from the interior side. Furthermore, the decorative members 32 and 42 may each be detachably provided so that the panel unit 5 can be attached and removed from either the exterior side or the interior side.

[0045] The opening building material 1 according to this embodiment, configured as described above, provides the following effects.

[0046] (1) The opening building material 1 comprises a frame 20 formed by framing an upper frame 21, a lower frame 22, and left and right vertical frames 23; at least one facing unit 5 slidably attached to the inner circumference of the frame 20 and formed by framing an upper frame 51, a lower frame 52, and left and right vertical frames 53; an outer wall portion 3 and an inner wall portion 4 provided on the outdoor and indoor sides of the frame 20, respectively, which shield the inner circumference of the frame 20 while leaving the window opening 103 open; and a storage space portion 203 formed between the outer wall portion 3 and the inner wall portion 4, which houses the facing unit 5 when the window opening 103 is fully open.

[0047] According to this, when the window opening 103 is fully open, the facing unit 5 is not visible from either the exterior or interior side of the opening building material 1. Therefore, the opening building material 1 has superior design aesthetics on both the exterior and interior sides.

[0048] (2) In the opening building material 1 described in (1) above, the frame 20 has a facing unit moving mechanism 26 for attaching the facing unit 5 so that it can slide, and the facing unit moving mechanism 26 attaches the facing unit 5 so that it can be attached and detached.

[0049] According to this, the facing unit 5 inside the frame 20 can be slid and moved by the facing unit moving mechanism 26. Since the facing unit moving mechanism 26 is designed to allow the facing unit 5 to be attached and detached, the facing unit 5 can be removed from and attached to the facing unit moving mechanism 26 for maintenance or replacement purposes.

[0050] (3) In the opening building material 1 described in (2) above, a plurality of surface material unit moving mechanisms 26 are arranged on the inner circumference side of the frame 20, to which surface material units 5A, 5B, and 5C are detachably attached, and the plurality of surface material unit moving mechanisms 26 are capable of independently sliding each of the surface material units 5A, 5B, and 5C.

[0051] According to this, by independently sliding each of the multiple facing units 5A, 5B, and 5C, any facing unit 5 can be positioned in the window opening 103. Furthermore, any of the facing units 5A, 5B, and 5C can be maintained or replaced, and the number of facing units 5 provided in the opening building material 1 can also be adjusted.

[0052] (4) In the opening building material 1 described in (3) above, each of the multiple surface material unit moving mechanisms 26 is capable of detachably attaching a surface material unit 5 having any function.

[0053] According to this, any of the panel units 5A, 5B, and 5C can be placed in the window opening 103. Therefore, the opening building material 1 can shield the window opening 103 with any of the panel units 5A, 5B, and 5C according to the season, weather, or user preference. [Explanation of Symbols]

[0054] 1 Opening building material, 3 Exterior wall section, 4 Interior wall section, 5, 5A, 5B, 5C Panel unit, 20 Frame, 21 Upper frame, 22 Lower frame, 23 Vertical frame, 26 Panel unit moving mechanism, 51 Upper frame, 52 Lower frame, 53 Vertical frame, 103 Window opening, 203 Storage space section

Claims

1. A frame structure consisting of an upper frame, a lower frame, and left and right vertical frames, At least one panel unit is slidably attached to the inner circumference of the frame and is constructed by assembling an upper frame, a lower frame, and left and right vertical frames, The exterior wall portion and the interior wall portion are provided on the exterior and interior sides of the frame, respectively, and the interior wall portion shields the inner circumference of the frame while leaving a window opening. It comprises a storage space formed between the exterior wall portion and the interior wall portion, which houses the surface material unit with the window opening fully open, The frame has a panel unit moving mechanism that allows the panel unit to be mounted in a slidable manner, The aforementioned panel unit moving mechanism has a mounting portion that detachably fixes the panel unit by sandwiching it, The mounting portion is positioned so as to sandwich the surface material unit, and is in contact with the visible surface of the frame that is positioned opposite the surface material unit. The frame of the surface material unit on which the mounting portion is arranged each has a protruding wall portion extending toward the outer periphery, The aforementioned surface material unit is an opening building material that is fixed to the mounting portion by screws that penetrate the protruding wall portion from the exterior or interior side.

2. Multiple panel unit moving mechanisms are arranged on the inner circumference of the frame, each of which is detachably attached to one of the panel units. The opening building material according to claim 1, wherein the multiple panel unit moving mechanisms are capable of independently sliding each of the panel units.

3. The opening building material according to claim 2, wherein each of the multiple panel unit moving mechanisms is capable of detachably attaching the panel unit having any function.

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