Opening part building material

Abstract

To provide an opening part building material which includes a metal shape-material and a resin-shape material with improved thermal insulation properties.SOLUTION: An opening part building material includes an outdoor side metal shape-material, an indoor side metal shape-material, and a resin-shape material. The outdoor side metal shape-material and the indoor side metal shape-material are connected by a resin bridge. The resin-shape material is mounted on the indoor side metal shape-material so as to cover the inner peripheral side of the indoor side metal shape-material. The resin-shape material includes a hollow portion adjacent to the indoor side of the indoor side metal shape-material and an angle portion that extends from the hollow portion to the indoor side.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a building material for an opening that includes a metal profile and a resin profile. [Background technology]

[0002] 2. Description of the Related Art Composite window frames having a metal frame and a resin frame have been known for some time, as described in Patent Document 1. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-55361 Summary of the Invention [Problem to be solved by the invention]

[0004] A conventional composite window frame having a metal frame and a resin frame has a metal frame on the outside of the room and a resin frame on the inside of the room, thereby maintaining the insulating properties of the window frame. Another object of the present invention is to provide a building material for an opening including a metal shaped material and a resin shaped material with improved thermal insulation properties. [Means for solving the problem]

[0005] In order to solve the above-mentioned problems, the opening building material of the present invention comprises an exterior metal profile, an interior metal profile, and a resin profile, the exterior metal profile and the interior metal profile being connected by a resin bridge, the resin profile being attached to the interior metal profile so as to cover the inner side of the interior metal profile, and the resin profile having a hollow portion adjacent to the interior side of the interior metal profile and an angle portion extending from the hollow portion to the interior side. Effect of the Invention

[0006] With the above-mentioned configuration, the present invention can further provide a building material for an opening including a metal shaped material and a resin shaped material with improved thermal insulation properties. [Brief description of the drawings]

[0007] [Figure 1] FIG. 2 is a vertical cross-sectional view of a sliding window according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a partially enlarged view of FIG. [Diagram 3] FIG. 3 is a partially enlarged view of FIG. [Figure 4] FIG. 2 is a cross-sectional view of a sliding window according to an embodiment of the present invention. [Diagram 5] This is a diagram of the joint between the upper frame 11 and right vertical frame 14 of a sliding window in an embodiment of the present invention. [Figure 6] This is a diagram showing the assembly of the upper frame 11, lower frame 12, left vertical frame 13, and right vertical frame 14 of a sliding window in an embodiment of the present invention. [Figure 7] FIG. 2 is a heat flow diagram of an embodiment of the present invention. [Figure 8] FIG. 11 is a heat flow diagram of a comparative example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] [Embodiment] The building material for openings of the present invention will be described using a sliding window as an example. In the following description, the same reference numerals in different drawings indicate parts having the same functions, and duplicated descriptions in each drawing will be omitted as appropriate.

[0009] [Sliding window configuration] As shown in Figures 1 and 4, a sliding window has a frame 1 that is fixed to an opening in a building, and an outer screen 2 on the outside and an inner screen 3 on the inside, which are arranged on the inner circumference of the frame 1 so that they can slide freely. In addition, a screen door 4 is installed on the outside of the outer screen 2 so that it can slide freely.

[0010] [Frame] The frame body 1 is configured by combining, in a rectangular shape, a pair of upper and lower frames 11 and 12 arranged opposite each other, and a pair of left and right vertical frames 13 and 14 arranged opposite each other. The upper frame 11 is composed of an outdoor side upper metal frame 111 (outdoor side metal profile) and an indoor side upper metal frame 112 (indoor side metal profile) made of long metal profiles such as aluminum extrusion profiles, a resin upper metal frame connecting member 113 (resin bridge) that connects the outdoor side upper metal frame 111 and the indoor side upper metal frame 112, a long resin outdoor side upper resin frame 114 attached to the outdoor side upper metal frame 111 and the indoor side upper metal frame 112, and a long resin indoor side upper resin frame 116 (resin profile) attached to the indoor side upper metal frame 112. The upper metal frame connecting member 113 can prevent heat from being transferred from the outdoor side upper metal frame 111 to the indoor side upper metal frame 112.

[0011] The lower frame 12 is composed of an exterior lower metal frame 121 and an interior lower metal frame 122, which are made of long metal profiles such as aluminum extrusions, a resin lower metal frame connecting member 123 that connects the exterior lower metal frame 121 and the interior lower metal frame 122, a long resin exterior lower frame auxiliary member 124 attached to the exterior lower metal frame 121 and the interior lower metal frame 122, and a long resin indoor lower frame auxiliary member 125 attached to the interior lower metal frame 122. The lower metal frame connecting member 123 makes it possible to prevent heat from being transferred from the outdoor side lower metal frame 121 to the indoor side lower metal frame 122.

[0012] The left vertical frame 13 is composed of a left vertical metal frame 131 made of a long metal profile such as an aluminum extrusion, and a left vertical resin frame 132 made of resin attached to the inner surface of the left vertical metal frame 131 on the indoor side. The left vertical resin frame 132 can prevent the cold and heat from the left vertical metal frame 131 from being transmitted to the inside of the room.

[0013] The right vertical frame 14 is composed of a right vertical metal frame 141 made of a long metal profile such as an aluminum extrusion profile, and a right vertical resin frame 142 made of resin attached to the inner surface of the right vertical metal frame 141 on the indoor side. The right vertical resin frame 142 can prevent the cold and heat from the right vertical metal frame 141 from being transmitted to the inside of the room.

[0014] Top border The exterior upper metal frame 111 has an exterior upper rail 111a that supports the exterior screen 2 on the exterior side protruding toward the inner circumference, and an upper metal frame connecting member 113 attached to the interior side. In addition, an attachment member 118 is attached to the outer periphery of the exterior upper metal frame 111. The attachment member 118 is formed with a screen door upper rail 118a that supports the screen door 4 on the exterior side, and an attachment member frame mounting piece 118b that mounts the attachment member 118 to the frame 5 on the interior side. An exterior upper resin frame 114 is attached to the inner periphery of the exterior upper metal frame 111, spanning between the exterior upper metal frame 111 and the interior upper metal frame 112, so as to cover the inner periphery of the exterior upper metal frame 111. The exterior upper resin frame 114 is installed at a position corresponding to the exterior screen 2 in the viewing direction when the opening is closed by the exterior screen 2 and the interior screen 3. It may also be installed across the entire width of the opening in the viewing direction.

[0015] The exterior side upper resin frame 114 is formed of a relatively hard resin, and an exterior side upper resin frame bulge 115 is formed on its inner periphery. The outdoor side upper resin frame outer engaging piece 114a and the outdoor side upper resin frame inner engaging piece 114b formed on the outdoor side upper resin frame 114 are engaged with the outdoor side upper metal frame outer engaging piece 111b and the indoor side upper metal frame outer engaging part 112b, respectively, so that the outdoor side upper resin frame 114 can be attached and detached freely.

[0016] Since the outdoor side upper resin frame 114 is attached so as to cover the inner side of the outdoor side upper metal frame 111, the outdoor side upper resin frame 114 can block the cold and heat that is transmitted from the outdoor side upper metal frame 111 to the inner side, i.e., inside the opening, thereby improving insulation. By filling the space between the outer screen upper frame 21 and the inner surface of the outer side upper resin frame 114 with the outer side upper resin frame bulge 115, it is possible to block cold air that is transmitted to the inside of the room through this space, thereby improving insulation.

[0017] The exterior upper resin frame bulging body 115 is integrally molded so as to protrude to the inner periphery of the exterior upper resin frame 114, and has a bellows-shaped exterior upper resin frame bulging body bellows part 115a formed of a relatively soft resin, and an exterior upper resin frame bulging body inner circumferential surface 115b formed of a relatively soft resin so as to be horizontal to the lower end of the exterior upper resin frame bulging body bellows part 115a. A gap of about 2 mm is provided between the interior end of the exterior upper resin frame bulging body inner circumferential surface 115b and the exterior surface of the interior upper rail 112a, forming a semi-closed space. It is also possible to form a closed space by contacting the interior end of the exterior upper resin frame bulging body inner circumferential surface 115b and the exterior surface of the interior upper rail 112a without providing a gap. The indoor end of the outdoor-side upper resin frame bulge inner peripheral surface 115b can prevent cold air transmitted from the upper frame 11 from flowing into the indoor side. The outside of the exterior upper resin frame bulging inner circumferential surface 115b has an exterior upper resin frame bulging inner circumferential surface protrusion 115b1 that protrudes inward, and the lower end of this exterior upper resin frame bulging inner circumferential surface protrusion 115b1 contacts the upper surface of the exterior screen upper resin frame 212 to eliminate any gaps. These exterior upper resin frame bulging inner circumferential surface protrusion 115b1 and the exterior screen upper resin frame 212 seal the exterior and interior sides. Note that there may be a gap of about 2 mm between the lower end of the exterior upper resin frame bulging inner circumferential surface protrusion 115b1 and the upper surface of the exterior screen upper resin frame 212. In this case, the exterior and interior sides are semi-sealed. The inner peripheral protrusion 115b1 of the bulging upper resin frame on the exterior side makes the exterior and interior sides of the exterior screen 2 sealed or semi-sealed, preventing cold air from flowing inside the room through the gap between the upper frame 11 and the upper frame 21 of the exterior screen.

[0018] The indoor side upper metal frame 112 has an indoor side upper rail 112a that supports the inner sash 3 on the outdoor side protruding toward the inner periphery, and an upper metal frame connecting member 113 attached to the outdoor side. An indoor upper resin frame 116 is attached to the inner periphery of the indoor upper metal frame 112 so as to cover the inner periphery of the indoor upper metal frame 112. The indoor upper resin frame 116 is installed across the entire width in the front direction when the opening is closed by the outer screen 2 and the inner screen 3.

[0019] The interior side upper resin frame 116 is formed from a relatively hard resin, and an interior side upper resin frame bulge 117 is attached to its inner periphery. The indoor side upper resin frame outer engagement piece 116a and the indoor side upper resin frame outer peripheral engagement portion 116b formed on the indoor side upper resin frame 116 are engaged with the lower end of the indoor side upper rail 112a and the indoor side upper metal frame inner peripheral engagement portion 112c, respectively, so that the indoor side upper resin frame 116 can be attached and detached freely. An indoor side upper resin frame hollow portion 116c (hollow portion) is formed on the indoor side of the outer periphery of the indoor side upper resin frame 116. The indoor side upper resin frame hollow portion 116c is formed so as to be adjacent to the indoor side end face of the indoor side upper metal frame 112. An indoor side upper resin frame angle portion 116d (angle portion) is formed on the indoor side of the indoor side upper resin frame hollow portion 116c, extending from the lower end of the protrusion extending to the inner periphery side to the indoor side. The interior upper resin frame bulging body 117 has an interior upper resin frame bulging body base 117a made of a relatively hard resin, an interior upper resin frame bulging body bellows part 117b made of a relatively soft resin and formed so as to protrude to the inner periphery side of the interior upper resin frame bulging body base 117a, and an interior upper resin frame bulging body inner circumferential surface 117c made of a relatively soft resin so as to be horizontal to the lower end of the interior upper resin frame bulging body bellows part 117b. The interior upper resin frame bulging body 117 is attached by engaging the interior upper resin frame bulging body base 117a with the interior upper resin frame 116. A gap of about 2 mm is provided between the exterior end and the interior end of the interior upper resin frame bulging body inner circumferential surface 117c of the interior upper resin frame and the inner periphery surface of the interior upper resin frame 116, forming a semi-closed space. In addition, without providing a gap, the outdoor end and indoor end of the indoor side upper resin frame bulging inner peripheral surface 117c may be brought into contact with the inner peripheral surface of the indoor side upper resin frame 116 to form an enclosed space. The outdoor end and indoor end of the indoor side upper resin frame bulge inner peripheral surface 117c can prevent cold air transmitted from the upper frame 11 from flowing into the room.

[0020] The upper frame 11 is fixed to the opening by screwing the attachment member body mounting piece 118b of the attachment member 118 and the indoor side upper metal frame 112 to the body 5, and by screwing the indoor side upper resin frame angle part 116d to the frame member 6. The attachment member body mounting piece 118b is formed so as to be disposed at a position spaced a predetermined distance from the outer periphery of the upper metal frame connecting member 113. Because the attachment member 118 is not integral with the outdoor-side upper metal frame 111, if the outdoor-side upper metal frame 111 and the indoor-side upper metal frame 112 are connected with the upper metal frame connecting member 113 before attaching the attachment member 118 to the outdoor-side upper metal frame 111, the attachment member body mounting piece 118b will not get in the way of the connecting work. Then, after connecting the outdoor-side upper metal frame 111 and the indoor-side upper metal frame 112, the attachment member 118 can be attached to the outdoor-side upper metal frame 111.

[0021] Since the indoor side upper resin frame 116 is attached so as to cover the inner side of the indoor side upper metal frame 112, the indoor side upper resin frame 116 can block the cold and heat that is transmitted from the indoor side upper metal frame 112 to the inner side, i.e., inside the opening, thereby improving insulation. The indoor side upper resin frame hollow portion 116c is formed so as to contact the indoor side end face of the indoor side upper metal frame 112, so that the cold and heat transmitted from the indoor side upper metal frame 112 to the indoor side can be blocked by the indoor side upper resin frame hollow portion 116c, thereby improving insulation. By filling the space between the inner screen upper frame 31 and the inner surface of the indoor upper resin frame 116 with the indoor side upper resin frame bulge 117, it is possible to block cold air that is transmitted to the indoor side through this space, thereby improving insulation.

[0022] The exterior upper resin frame bulging body 115 and the interior upper resin frame bulging body 117 each have an exterior upper resin frame bulging body bellows portion 115a and an interior upper resin frame bulging body bellows portion 117b, so that the interior peripheral surface 115b of the exterior upper resin frame bulging body and the interior upper resin frame bulging body peripheral surface 117c of the interior upper resin frame bulging body can move upward. With this configuration, when fitting the outer screen 2 and inner screen 3 into the frame body 1, the outer screen upper frame 21 and inner screen upper frame 31 can be fitted into the outer upper rail 111a and the inner upper rail 112a while moving the outer upper resin frame bulging inner inner surface 115b and the inner upper resin frame bulging inner inner surface 117c upward, and then the outer screen 2 and inner screen 3 can be moved downward and fitted into the outer lower rail 121a and the inner lower rail 122a. This improves insulation due to the outer upper resin frame bulging body 115 and the inner upper resin frame bulging body 117, and does not cause any obstacles when fitting the outer screen 2 and inner screen 3 into the frame body 1.

[0023] [Bottom frame] The exterior lower metal frame 121 has an exterior lower rail 121a that supports the exterior screen 2 protruding inward, and a screen lower rail 121b that supports a screen 4 formed on the exterior side of the exterior lower rail 121a, and a lower metal frame connecting member 123 is attached to the interior side of the exterior lower rail 121a. An outdoor side lower metal frame body mounting piece 121c is attached to the lower part of the outdoor side lower metal frame 121, which mounts the outdoor side lower metal frame 121 to the body. An exterior lower frame auxiliary member 124 is attached to the inner periphery of the exterior lower metal frame 121, spanning the exterior lower metal frame 121 and the interior lower metal frame 122. The exterior lower frame auxiliary member 124 is installed at a position corresponding to the exterior screen 2 in the front view direction when the opening is closed by the exterior screen 2 and the interior screen 3. It may also be installed across the entire width of the opening in the front view direction.

[0024] An indoor side lower frame auxiliary member 125 is attached to the inner periphery of the indoor side lower metal frame 122. The indoor side lower frame auxiliary member 125 is installed across the entire width in the front direction with the opening closed by the outer screen 2 and the inner screen 3. An indoor side lower frame auxiliary member angle portion 125a is formed on the indoor side of the indoor side lower frame auxiliary member 125, extending toward the indoor side. These exterior lower frame auxiliary materials 124 and interior lower frame auxiliary materials 125 fill in the recesses formed in the exterior lower metal frame 121 and the interior lower metal frame 122, making the upper end of the exterior lower rail 121a, the upper end of the interior lower rail 122a, and the upper surface of the frame member 6 (at the same level as the floor surface) flat, making it barrier-free. The bottom frame 12 is fixed to the opening by fastening the exterior lower metal frame body mounting piece 121c to the body 5 with screws and the interior lower frame auxiliary material angle portion 125a to the frame member 6 with screws.

[0025] [Left vertical frame] A left vertical metal frame body attachment piece 131a for attaching the left vertical metal frame 131 to a body is formed on the outer periphery of the left vertical metal frame 131. The left vertical resin frame 132 is attached to the indoor inner periphery of the left vertical metal frame 131. On the indoor side of the left vertical resin frame 132, a left vertical resin frame angle portion 132a is formed extending toward the indoor side. The left vertical frame 13 is fixed to the opening by screwing the left vertical metal frame body mounting piece 131a and the indoor side of the left vertical metal frame 131 to the body 5, and by screwing the left vertical resin frame angle part 132a to the frame member 6.

[0026] [Right vertical frame] A right vertical metal frame body mounting piece 141a for mounting the right vertical metal frame 141 to a body is formed on the outer periphery of the right vertical metal frame 141. The right vertical resin frame 142 is attached to the indoor inner periphery of the right vertical metal frame 141. On the indoor side of the right vertical resin frame 142, a right vertical resin frame angle portion 142a is formed extending toward the indoor side. The right vertical frame 14 is fixed to the opening by screwing the right vertical metal frame body mounting piece 141a and the interior side of the right vertical metal frame 141 to the body 5, and by screwing the right vertical plastic frame angle part 142a to the frame member 6.

[0027] [Joint between top frame and left and right vertical frames] As shown in Figures 5 and 6, the upper frame 11 is assembled by assembling an exterior upper metal frame 111, an interior upper metal frame 112, an upper metal frame connecting member 113 (plastic bridge), and an attachment member 118, and then, with an interior upper plastic frame 116 attached by engagement, its right end face is abutted against the inner peripheral surface 14a of the right vertical frame 14 and joined to the right vertical frame 14 by fastening with screws at three points from the outer periphery of the right vertical frame 14. (In Figure 5, part of the right vertical frame 14 is omitted so that it does not overlap the joint with the upper frame 11.) In addition, a sheet-like waterproof material 7 (the portion indicated by diagonal lines in Figure 5) is interposed between the right end face of the upper frame 11 and the inner surface 14a of the right vertical frame 14 to cover the entire joint, ensuring watertightness of the joint between the right end face of the upper frame 11 and the inner surface 14a of the right vertical frame 14, including the right end face of the indoor side upper resin frame hollow portion 116c. The joint between the upper frame and the left vertical frame 13 has a similar structure. With this configuration, the upper frame 11, the lower frame 12, the left vertical frame 13, and the right vertical frame 14 can be easily assembled by screwing from the outer periphery of the left vertical frame 13 and the right vertical frame 14. In addition, by sandwiching and joining the frames with the watertight material 7, it is possible to prevent water leakage from the outer periphery of the frame body 1 to the inner periphery through each joint.

[0028] [Outer Shoji Screen] The outer screen 2 is formed by combining a pair of opposing outer screen upper frames 21 and outer screen lower frames 22, and a pair of opposing outer screen left vertical frames 23 and outer screen right vertical frames (outer screen joint frames) 24, arranged in a rectangular shape, into which panels such as glass are fitted. The outer screen upper frame 21, the outer screen lower frame 22, the outer screen left vertical frame 23 and the outer screen right vertical frame 24 are respectively composed of an outer screen upper metal frame 211 and an outer screen upper plastic frame 212 attached to the inside of the room, an outer screen lower metal frame 221 and an outer screen lower plastic frame 222 attached to the inside of the room, an outer screen left vertical metal frame 231 and an outer screen left vertical plastic frame 232 attached to the inside of the room, and an outer screen right vertical metal frame 241 and an outer screen right vertical plastic frame 242 attached to the inside of the room. An outer screen rolling wheel 223 is attached to the outer screen lower metal frame 221 and rolls on the outer side lower rail 121a. The upper plastic frame 212 of the outer screen, the lower plastic frame 222 of the outer screen, the left vertical plastic frame 232 of the outer screen, and the right vertical plastic frame 242 of the outer screen prevent cold and hot water from the upper metal frame 211 of the outer screen, the lower metal frame 221 of the outer screen, the left vertical metal frame 231 of the outer screen, and the right vertical metal frame 241 from being transmitted to the inside of the room.

[0029] [Inner Shoji Screen] The inner screen 3 is formed by combining a pair of opposing inner screen upper frames 31 and inner screen lower frames 32, and a pair of opposing inner screen left vertical frames 33 (inner screen joint frames) and inner screen right vertical frames 34, arranged in a rectangular shape, into which panels such as glass are fitted. The inner screen upper frame 31, the inner screen lower frame 32, the inner screen left vertical frame 33 and the inner screen right vertical frame 34 are respectively composed of an inner screen upper metal frame 311 and an inner screen upper plastic frame 312 attached to the inside of the room, an inner screen lower metal frame 321 and an inner screen lower plastic frame 322 attached to the inside of the room, an inner screen left vertical metal frame 331 and an inner screen left vertical plastic frame 332 attached to the inside of the room, and an inner screen right vertical metal frame 341 and an inner screen right vertical plastic frame 342 attached to the inside of the room. An inner screen rolling wheel 323 is attached to the inner screen lower metal frame 321 and rolls on the indoor side lower rail 122a. The inner screen upper plastic frame 312, the inner screen lower plastic frame 322, the inner screen left vertical plastic frame 332, and the inner screen right vertical plastic frame 342 prevent the cold and hot air from the inner screen upper metal frame 311, the inner screen lower metal frame 321, the inner screen left vertical metal frame 331, and the inner screen right vertical metal frame 341 from being transmitted to the inside of the room.

[0030] [Thermal insulation performance] The heat insulating performance of the upper frame 11 of the building material for openings of this embodiment will be examined. As a comparative example for comparison with the embodiment, an upper frame was assumed in which the upper frame is a single metal frame with a resin frame attached to the indoor side of this metal frame, that is, an upper frame 11 in this embodiment that does not have the upper metal frame connecting member 113 and the indoor side upper resin frame hollow portion 116c. A simulation of heat transfer was carried out for the building materials for openings of this embodiment and the comparative example, and a heat flow diagram for each was created. FIG. 7 is a heat flow diagram of this embodiment, where (a) is a heat flow diagram of the outer screen portion, and (b) is a heat flow diagram of the inner screen portion. FIG. 8 is a heat flow diagram of a comparative example, where (a) is a heat flow diagram of the outer screen part, and (b) is a heat flow diagram of the inner screen part. The simulation was performed under conditions of an external temperature of 0°C and an internal temperature of 20°C. The thin lines in the figure indicate heat flow lines, spaced 0.1 W / m apart. When heat flow lines are close together, it means that a large amount of heat is being transferred, and when they are far apart, it means that a small amount of heat is being transferred. The areas that appear solid indicate that the heat flow lines are so close together that no gaps between them are visible, indicating that the amount of heat being transferred is extremely large.

[0031] Comparing the heat flow diagrams, in the comparative example, it can be seen that the metal frame of both the outer and inner screen parts appears to be filled in from the outside to the inside end, indicating that a large amount of heat is transferring from the outside to the inside of the room, i.e., that the insulation performance is poor. In contrast, in this embodiment, first, in the exterior screen portion, the exterior upper metal frame 111 appears to be filled in, and it can be seen that a large amount of heat is transferred, but in the interior upper metal frame 112 connected via the upper metal frame connecting member 113, there are fewer heat flow lines, and furthermore, in the interior upper resin frame 116 attached so as to cover the inner circumferential surface of the interior upper metal frame 112, there are almost no heat flow lines, particularly in the interior upper resin frame hollow portion 116c, and it can be seen that almost no heat is transferred to the interior side. In other words, it can be seen that the insulation performance is greatly improved by the upper metal frame connecting member 113 and the interior upper resin frame 116, particularly the interior upper resin frame hollow portion 116c. Next, in the inner screen portion, there are no heat flow lines in the outdoor upper metal frame 111, which is the same as the outside air temperature, while there are many heat flow lines in the indoor upper metal frame 112, indicating that a lot of heat is transferred from the upper metal frame connecting member 113. However, there are few heat flow lines in the indoor upper resin frame 116, particularly in the indoor upper resin frame hollow section 116c, indicating that almost no heat is transferred to the indoor side. In other words, it can be seen that the indoor upper resin frame 116, particularly the indoor upper resin frame hollow section 116c, has significantly improved the insulation performance.

[0032] In addition, the thermal conductivity (W / m 2 The thermal transmission coefficient is a value used as one of the standards for evaluating the thermal insulation performance of sashes, etc., and is the number of meters per hour when the temperature difference between the inside and outside of a sash is 1°C. 2 The amount of heat passing through the material is expressed in watts, and a smaller value indicates better insulation.

[0033] [Table 1]

[0034] The thermal conductivity of the outer screen part (FIG. 7(a)) and the inner screen part (FIG. 7(b)) of this embodiment is 6.285 W / m 2 K, 1.995W / m 2 ·K, and the thermal transmittance of the outer screen part (Figure 8(a)) and the inner screen part (Figure 8(b)) of the comparative example is 9.516 W / m 2 K, 2.351 W / m 2 ·K, and comparing the thermal conductivity of the outer screen part of this embodiment (Fig. 7(a)) with that of the comparative example (Fig. 8(a)), and the thermal conductivity of the inner screen part of this embodiment (Fig. 7(b)) with that of the comparative example (Fig. 8(b)), it is clear that in both cases, the thermal conductivity of this embodiment is smaller than that of the comparative example, and that the insulation performance is improved. In other words, it is clear that the insulation performance is greatly improved by installing the upper metal frame connecting member 113 and the indoor side upper resin frame hollow portion 116c.

[0035] The opening building material of the present invention is not limited to a sliding window as in the embodiment, but may be other types of windows such as a horizontal sliding window, a vertical sliding window, a single-hinged window, or a double-hinged window.

[0036] In the above-described embodiment, the outdoor side upper metal frame 111 (outdoor side metal profile) and the indoor side upper metal frame 112 (indoor side metal profile) are connected by a resin upper metal frame connecting member 113 (resin bridge), so that the upper metal frame connecting member 113 can prevent heat from being transferred from the outdoor side upper metal frame 111 to the indoor side upper metal frame 112. In addition, since the outdoor side lower metal frame 121 and the indoor side lower metal frame 122 are connected by a resin lower metal frame connecting member 123, the lower metal frame connecting member 123 can prevent heat from being transferred from the outdoor side lower metal frame 121 to the indoor side lower metal frame 122.

[0037] In addition, in the above-described embodiment, since the left vertical resin frame 132 is attached to the indoor side inner circumferential surface of the left vertical metal frame 131, it is possible to prevent the cold and hot air from the left vertical metal frame 131 from being transmitted to the indoor side. In addition, since the right vertical resin frame 142 is attached to the indoor inner circumferential surface of the right vertical metal frame 141, the transmission of cold and warm air from the right vertical metal frame 141 to the indoor side can be suppressed.

[0038] In addition, in the above-described embodiment, the outdoor side upper resin frame 114 is attached so as to cover the inner side of the outdoor side upper metal frame 111, so that the outdoor side upper resin frame 114 can block the cold and heat transmitted from the outdoor side upper metal frame 111 to the inner side, i.e., into the opening, thereby improving insulation. In addition, by filling the space between the outer screen upper frame 21 and the inner surface of the outer side upper resin frame 114 with the outdoor side upper resin frame bulge 115, it is possible to block cold air that is transmitted to the indoor side through this space, thereby improving insulation. In addition, by creating a semi-sealed space or a sealed space between the indoor side end of the inner peripheral surface 115b of the outdoor side upper resin frame bulging inner surface and the outdoor side surface of the indoor side upper rail 112a, the indoor side end of the inner peripheral surface 115b of the outdoor side upper resin frame can prevent cold air transmitted from the upper frame 11 from flowing into the room. In addition, by semi-sealing or sealing the area between the lower end of the inner peripheral protrusion 115b1 of the exterior upper resin frame bulge and the upper surface of the exterior screen upper resin frame 212, it is possible to prevent cold air from flowing inside the room through the gap between the upper frame 11 and the exterior screen upper frame 21.

[0039] In addition, in the above-described embodiment, the indoor side upper resin frame 116 is attached so as to cover the inner side of the indoor side upper metal frame 112, so that the cold and heat transmitted from the indoor side upper metal frame 112 to the inner side, i.e., inside the opening, can be blocked by the indoor side upper resin frame 116, thereby improving insulation. In addition, the indoor side upper resin frame hollow portion 116c is formed so as to contact the indoor side end face of the indoor side upper metal frame 112, so that the cold and heat transmitted from the indoor side upper metal frame 112 to the indoor side can be blocked by the indoor side upper resin frame hollow portion 116c, thereby improving insulation. In addition, by filling the space between the inner screen upper frame 31 and the inner surface of the indoor upper resin frame 116 with the indoor side upper resin frame bulge 117, it is possible to block cold air that is transmitted to the indoor side through this space, thereby improving insulation. In addition, by semi-sealing or sealing between the outdoor end and indoor end of the indoor side upper resin frame bulging inner peripheral surface 117c and the inner peripheral surface of the indoor side upper resin frame 116, it is possible to prevent cold air transmitted from the upper frame 11 from flowing into the room.

[0040] In addition, in the above-described embodiment, the exterior upper resin frame bulge body 115 and the interior upper resin frame bulge body 117 are capable of moving upwards, thereby improving insulation properties by the exterior upper resin frame bulge body 115 and the interior upper resin frame bulge body 117 and not causing any obstruction when fitting the outer screen 2 and the inner screen 3 into the frame body 1.

[0041] In addition, in the above-described embodiment, the exterior lower frame auxiliary material 124 and the interior lower frame auxiliary material 125 fill in the recesses formed in the exterior lower metal frame 121 and the interior lower metal frame 122, making the upper end of the exterior lower rail 121a, the upper end of the interior lower rail 122a, and the upper surface of the frame member 6 (at the same level as the floor surface) flat, thereby making it barrier-free.

[0042] In addition, in the above-described embodiment, the upper frame 11, the lower frame 12, the left vertical frame 13, and the right vertical frame 14 can be easily assembled by screwing the left vertical frame 13 and the right vertical frame 14 from the outer periphery. Furthermore, by sandwiching and joining the watertight material 7, it is possible to prevent water leakage from the outer periphery of the frame 1 to the inner periphery via each joint.

[0043] In addition, in the above-described embodiment, the upper metal frame 211 of the exterior screen and the upper plastic frame 212 of the exterior screen attached to its interior side, the lower metal frame 221 of the exterior screen and the lower plastic frame 222 of the exterior screen attached to its interior side, the left vertical metal frame 231 of the exterior screen and the left vertical plastic frame 232 of the exterior screen attached to its interior side, and the right vertical metal frame 241 of the exterior screen and the right vertical plastic frame 242 of the exterior screen attached to its interior side can prevent the cold and hot water from the upper metal frame 211 of the exterior screen, the lower metal frame 221 of the exterior screen, the left vertical metal frame 231 of the exterior screen, and the right vertical metal frame 241 of the exterior screen and the right vertical plastic frame 242 of the exterior screen attached to its interior side, from being transmitted to the interior side of the room. In addition, the inner screen upper metal frame 311 and the inner screen upper plastic frame 312 attached to its interior side, the inner screen lower metal frame 321 and the inner screen lower plastic frame 322 attached to its interior side, the inner screen left vertical metal frame 331 and the inner screen left vertical plastic frame 332 attached to its interior side, and the inner screen right vertical metal frame 341 and the inner screen right vertical plastic frame 342 attached to its interior side, can prevent the cold and hot water from the inner screen upper metal frame 311, the inner screen lower metal frame 321, the inner screen left vertical metal frame 331, and the inner screen right vertical metal frame 341 from being transmitted to the inside of the room.

[0044] Although the embodiments of the present invention have been described in detail above with reference to the drawings, the specific configurations are not limited to these embodiments, and the present invention also includes design changes and the like that do not deviate from the gist of the present invention. [Explanation of symbols]

[0045] 1 frame 11 Upper frame 111 Outdoor upper metal frame 111a Outdoor upper rail 111b Outdoor upper metal frame outdoor engagement piece 112 Interior side upper metal frame 112a Indoor upper rail 112b Indoor side upper metal frame, outdoor engagement part 112c Indoor side upper metal frame inner circumference side engagement part 113 Upper metal frame connecting member 114 Outdoor upper resin frame 114a Outdoor upper resin frame outdoor engagement piece 114b Outdoor upper resin frame indoor inner engagement piece 115 Outdoor upper resin frame bulge 115a Outdoor upper resin frame bulge bellows 115b Outdoor side upper resin frame bulging inner peripheral surface 115b1 Outdoor side upper resin frame bulge inner peripheral surface protrusion 116 Interior side upper resin frame 116a Indoor side upper resin frame, indoor outside engagement piece 116b Indoor side upper resin frame outer periphery side engagement portion 116c Interior upper resin frame hollow section 116d Interior side upper resin frame angle part 117 Interior side upper resin frame bulge 117a Indoor side upper resin frame bulge base 117b Indoor side upper resin frame bulging body bellows part 117c Indoor side upper resin frame bulging inner peripheral surface 118 Attachment parts 118a Screen door upper rail 118b Attachment member body mounting piece 12 Bottom frame 121 Outdoor bottom metal frame 121a Outside lower rail 121b Screen door bottom rail 121c Outdoor bottom metal frame mounting piece 122 Interior side lower metal frame 122a Indoor bottom rail 123 Lower metal frame connecting member 124 Outdoor bottom frame support material 125 Interior bottom frame support material 125a Interior side lower frame support angle part 13 Left vertical frame 131 Left vertical metal frame 131a Left vertical metal frame mounting piece 132 Left vertical resin frame 132a Left vertical resin frame angle part 14 Right vertical frame 14a Inner surface 141 Right vertical metal frame 142 Right vertical resin frame 2. Outer Shoji Screen 21 Outer door frame 211 Metal frame for outer door 212 Resin frame for outer screen 22 Outer Shoji Lower Frame 221 Metal frame under outer door 222 Resin frame under outer screen 223 Outer Shoji Rolling Wheel 23 Outside shoji left vertical stile 231 Outside Shoji Left Vertical Metal Frame 232 Outside Shoji Left Vertical Resin Frame 24 Right vertical frame of outer screen 241 Right vertical metal frame of outer door 242 Right vertical resin frame of outer screen 3. Inner Shoji Screen 31 Inner Shoji Upper Frame 311 Metal frame for inner screen 312 Resin frame for inner screen 32 Inner Shoji Bottom Frame 321 Metal frame under the inner screen 322 Resin frame under the inner screen 323 Inner Shoji Rolling Wheel 33 Inner Shoji Left Vertical Frame 331 Inner Shoji Left Vertical Metal Frame 332 Inner Shoji Left Vertical Resin Frame 34 Right vertical frame of inner screen 341 Right vertical metal frame of inner screen 342 Right vertical resin frame of inner screen 4. Screen door 5 skeleton 6 Frame materials 7 Watertight material

Claims

[Claim 1] It is equipped with exterior metal profiles, interior metal profiles and resin profiles. The exterior metal profile and the interior metal profile are connected with a resin bridge. The plastic profile is attached to the interior metal profile so as to cover the inner circumference of the interior metal profile. The resin profile is an opening construction material characterized in having a hollow portion adjacent to the interior side of the interior metal profile and an angle portion extending from the hollow portion to the interior side.

Images