Material of building opening

Abstract

To provide a material of building opening easy to use.SOLUTION: The material of building opening includes a frame material 4, a resin cover 19, and a heat transfer suppression material 23. The resin cover 19 covers the frame material 4 from the inside. The heat transfer suppression material 23 narrows the gap between frame material 4 and the sash 3 supported by the frame material 4 and is detachable from the inner circumference side of the resin cover 19. The heat transfer suppression material 23 hides a screw 30 that attaches the resin cover 19 to the body 26.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a building material for openings that is installed in openings of buildings. [Background technology]

[0002] 2. Description of the Related Art Conventionally, there has been known a construction material for an opening in which a paper screen is fitted in a frame so as to be slidable in the left-right and up-down directions. There is a demand for such a construction material for an opening that is easy to use. Summary of the Invention [Problem to be solved by the invention]

[0003] In view of the above-mentioned circumstances, an object of the present invention is to provide a building material for openings that is easy to use. [Means for solving the problem]

[0004] In order to achieve the above object, the building material for openings according to the invention described in claim 1 comprises a frame material, a resin cover, and a heat transfer suppression member, the resin cover covers the frame material from the inner periphery, the heat transfer suppression member narrows the gap between the frame material and the screen supported by the frame material, and is detachably attached to the resin cover from the inner periphery, and the heat transfer suppression member hides the screws that attach the resin cover to the main body.

[0005] The building material for openings according to the invention described in claim 2 comprises a frame material, a resin cover, and a heat transfer suppression member, wherein the resin cover covers the frame material from the inner periphery and has an angle integral therewith, and the heat transfer suppression member narrows the gap between the frame material and the shoji screen supported by the frame material and is arranged so as to be freely attached and detached from the inner periphery of the resin cover. Effect of the Invention

[0006] The building material for openings according to the invention described in claim 1 comprises a frame material, a resin cover, and a heat transfer suppression member, the resin cover covers the frame material from the inner periphery side, the heat transfer suppression member narrows the gap between the frame material and the shoji screen supported by the frame material, and is provided so as to be freely attached and detached from the inner periphery side of the resin cover, and the screws attaching the resin cover to the frame are hidden by the heat transfer suppression member, making it easy to attach and detach the heat transfer suppression member, and good in usability, and also good in design because the screws attaching the resin cover to the frame are hidden. Moreover, by covering the frame material from the inner periphery side with the resin cover and providing the heat transfer suppression member on the inner periphery side of the resin cover to narrow the gap between the frame material and the shoji screen, the insulation performance is improved.

[0007] The building material for openings according to the invention described in claim 2 comprises a frame material, a resin cover, and a heat transfer suppression member, the resin cover covers the frame material from the inner periphery side and has an integral angle, the heat transfer suppression member narrows the gap between the frame material and the shoji screen supported by the frame material, and since it is detachably attached to the resin cover from the inner periphery side, the heat transfer suppression member can be easily attached and detached, making it easy to use. Moreover, by covering the frame material from the inner periphery side with a resin cover having an integral angle, and narrowing the gap between the frame material and the shoji screen by providing the heat transfer suppression member on the inner periphery side of the resin cover, the insulation performance is improved. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a vertical cross-sectional view showing a first embodiment of a building material for openings. [Diagram 2] FIG. 2 is a cross-sectional view of the building material for an opening. [Diagram 3] FIG. 2 is a front view of the same opening building material as seen from the indoor side. [Figure 4] FIG. 2 is a vertical cross-sectional view showing an enlarged view of the upper frame side of the opening building material. [Diagram 5] 1A is a vertical cross-sectional view of the upper frame of the same building material for an opening, and FIG. 1B is a view of the upper frame as viewed in the X direction. [Figure 6] 5A and 5B are longitudinal cross-sectional views showing a method of attaching a heat-transfer suppressing member, in which FIG. 5A shows the state before attachment and FIG. 5B shows the state after attachment. [Figure 7] This is a vertical cross-sectional view showing the state when the inner sash is being fitted into the frame. [Figure 8] This is an enlarged vertical cross-sectional view showing the upper frame side of the same opening building material, illustrating an example in which a mounting material with an indoor side tightening material is not installed within the rail swallowing groove of the upper frame. [Figure 9] A cross-sectional view showing a modified example of the vertical frame cover. [Figure 10] A cross-sectional view showing another modified example of the vertical frame cover. [Figure 11] A vertical cross-sectional view showing a second embodiment of the building material for openings, showing the case where a mounting material with an indoor side fastening material is installed in a groove in the upper frame. [Figure 12] A vertical cross-sectional view showing a second embodiment of the building material for openings, showing the case where a mounting material with an indoor side fastening material is not installed in the groove of the upper frame. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, the embodiment will be described with reference to the drawings. Figures 1 to 5 show a first embodiment of the building material for openings. This building material for openings is applied to sliding windows for residential use, and as shown in Figures 1 to 3, includes a frame 1 to be attached to an opening in a building frame, and an outer screen 2 and an inner screen 3 that are provided in the frame 1 in a sliding manner so as to be freely opened and closed.

[0010] As shown in Figures 1 to 3, the frame 1 is made up of an upper frame (frame material) 4, a lower frame 5, and left and right vertical frames 6, 6 arranged around the door. The outer screen 2 and inner screen 3 are made up of an upper frame 7, a lower frame 8, a door end frame 9, and a joint frame 10 arranged around the door, with double-glazed glass 11 fitted inside. When the inner and outer screens 2, 3 are closed, the outer screen 2 is located on the left side when viewed from inside the room, and the inner screen 3 is located on the right side when viewed from inside the room. The outer screen 2 and inner screen 3 are locked with a crescent 12 attached to the joint frame 10.

[0011] As shown in Figure 4, the upper frame 4 has a screen rail 13 at its exterior end that supports the top of the screen (not shown), an outer rail 14 on the interior side of the screen rail 13 that supports the top of the outer screen 2, and an inner rail 15 on the interior side of the outer rail 14 that supports the top of the inner screen 3. The upper frame 4 is made of an aluminum alloy extruded exterior shape member 16 and an interior shape member 17, which are connected by a resin heat insulating bridge material 18, and the inner circumference of the interior shape member 17 is covered by a resin cover 19 to block heat transfer from the indoors to the outdoors and prevent condensation on the indoor side. The resin cover 19 has an angle 21 that is screwed to the frame 20 as an integral part. Furthermore, the upper frame 4 has a resin outer heat transfer suppression member 22 attached to the space between the outer rail 14 and the inner rail 15, and a resin inner heat transfer suppression member 23 attached between the inner rail 15 and the angle 21. The outer heat transfer suppression member 22 and the inner heat transfer suppression member 23 narrow the gap between the upper frame 4 and the inner and outer screens 2, 3, thereby further suppressing heat transfer in the indoor / outdoor directions.

[0012] 4, the resin cover 19 integrally comprises an inner rail covering portion 24 that covers the interior side of the inner rail 15, an inner periphery covering portion 25 that covers the inner periphery side surface of the interior shape member 17 of the upper frame 4, an abutment portion 27 that protrudes toward the interior side from the interior shape member 17 of the upper frame 4 and abuts against the body 26, and an L-shaped cross-section angle 21 that is provided hanging down below the abutment portion 27. The abutment portion 27 is formed in a hollow shape with a rectangular cross-section. The resin cover 19 is attached to the upper frame 4 by engaging the locking portion 28 provided at the tip of the inner rail covering portion 24 and the locking portion 29 provided on the inner circumference covering portion 25 with the interior profile 17, and is fastened together with the upper frame 4 to the main body 26 with screws 30 from the inner circumference side.

[0013] As shown in FIG. 4, the outer heat transfer suppression member 22 has a plate-shaped portion 31 that covers the inner periphery of the exterior-facing shape 16 and the insulating bridge material 18 of the upper frame 4, and a hollow portion 32 provided on the inner periphery of the plate-shaped portion 31. The hollow portion 32 is provided at a position closer to the interior of the space between the outer rail 14 and the inner rail 15, and the left and right side walls 32a are bent inward in a V-shape to form an hourglass-shaped cross section. This allows the hollow portion 32 to be elastically deformed in the vertical direction. The lower wall 32b of the hollow portion 32 is horizontal and faces the upper ends of the outer screen 2 and the inner screen 3 with a gap of about 2 mm between them. The exterior end of the lower wall 32b has an abutment portion 33 that abuts against the upper end of the outer screen 2. As shown in Figure 5, the upper frame 4 has a wind stop plate 34 provided between the outer rail 14 and the inner rail 15 at the central position in the longitudinal direction, and the outer heat transfer suppression member 22 is provided only on the side where the outer screen 2 is located to the left of the wind stop plate 34 when viewed from the inside of the room. As shown in Figures 6(a) and (b), the outer heat transfer suppression member 22 is freely attached and detached from the inner side of the upper frame 4 by engaging a locking piece 35 formed on the outdoor side end of the plate-shaped portion 31 with a groove 36 formed in the base portion of the outer rail 14, and by resilient claws 37 formed on the indoor side end of the plate-shaped portion 31 resiliently engaging with grooves 38 formed in the base portion of the inner rail 15.

[0014] As shown in Fig. 4, the inner heat-transfer suppressing member 23 has a plate-shaped portion 39 that covers the inner periphery of the resin cover 19, and a hollow portion 40 provided on the inner periphery of the plate-shaped portion 39. The left and right side walls 40a of the hollow portion 40 are bent inward in a dogleg shape, forming an hourglass-shaped cross section. This allows the hollow portion 40 to elastically deform freely in the vertical direction. The bottom wall 40b of the hollow portion 40 is horizontal, and faces the upper end of the inner screen 3 with a gap of about 2 mm between them. As shown in Fig. 5, the inner heat-transfer suppressing member 23 is provided over the entire length of the upper frame 4 in the longitudinal direction. 6(a) and (b), the inner heat-transfer suppressing member 23 is detachably attached to the resin cover 19 of the upper frame 4 from the inner periphery side by engaging a locking piece 41 formed on the exterior end of the plate-shaped portion 39 with a groove 42 formed in the base portion of the inner rail covering portion 24 of the resin cover 19, and by resilient claws 43 formed on the interior end of the plate-shaped portion 39 resiliently engaging with grooves 44 formed in the base portion of the angle 21 of the resin cover 19. When the inner heat-transfer suppressing member 23 is attached to the resin cover 19, the screws 30 that secure the resin cover 19 to the frame 26 are hidden by the inner heat-transfer suppressing member 23.

[0015] 7 shows the state when the inner screen 3 is set into the frame 1. As shown in the figure, the inner screen 3 is set between the inner rail 15 of the upper frame 4 and the inner rail 15 of the lower frame 5 from the inside of the room by pushing from above and below, just like in the case of a normal sliding sash. At this time, the outer heat transfer suppressing member 22 and the inner heat transfer suppressing member 23 are elastically deformed so that their hollow portions 32, 40 are pressed by the upper end of the inner screen 3 and are crushed in the vertical direction, so that the outer heat transfer suppressing member 22 and the inner heat transfer suppressing member 23 do not get in the way of setting up the inner screen 3. The outer screen 2 is fitted between the outer rail 14 of the upper frame 4 and the outer rail 14 of the lower frame 5 by pushing from above and below from the outside of the room, but at this time the hollow portion 32 of the outer heat transfer suppression member 22 is pressed against the upper end of the outer screen 2 and elastically deforms, so that the outer heat transfer suppression member 22 does not get in the way of fitting the outer screen 2. Even when the inner screen 3 and the outer screen 2 are removed from the frame 1 by pushing them up and down, the hollow parts 32, 40 are pressed by the upper ends of the screens 2, 3 and elastically deformed, so that the outer heat transfer suppressing member 22 and the inner heat transfer suppressing member 23 do not get in the way of removing the screens 2, 3.

[0016] In this way, this building material for openings has the outer heat-transfer suppressing member 22 attached between the outer rail 14 and the inner rail 15 of the upper frame 4, and the inner heat-transfer suppressing member 23 attached between the inner rail 15 of the upper frame 4 and the angle 21, and the outer heat-transfer suppressing member 22 and the inner heat-transfer suppressing member 23 narrow the gap between the upper frame 4 and the inner and outer screens 2, 3, thereby suppressing heat transfer in the indoor and outdoor directions from between the upper frame 4 and the inner and outer screens 2, 3, improving insulation performance. Moreover, this building material for openings is easy to use because the hollow parts 32, 40 of the outer heat-transfer suppressing member 22 and the inner heat-transfer suppressing member 23 elastically deform in the vertical direction, so that the outer heat-transfer suppressing member 22 and the inner heat-transfer suppressing member 23 do not get in the way of removing and attaching the screens 2, 3. The outer heat transfer suppression member 22 is provided at a position between the outer rail 14 and the inner rail 15, close to the interior of the room, thereby reducing material costs while maintaining the function of suppressing heat transfer, thereby enabling costs to be reduced. In addition, the shoji screens 2, 3 can be easily removed and attached. This building material for openings also has a resin cover 19 that covers the indoor side of the upper frame 4 from the inner periphery, and the inner heat-transfer suppressing member 23 is provided so as to be detachable from the inner periphery of the resin cover 19, so that the inner heat-transfer suppressing member 23 can be easily attached and detached, making it easy to use. Moreover, the screws 30 that secure the resin cover 19 to the building frame 26 are hidden by the inner heat-transfer suppressing member 23, making the design attractive. Since the resin cover 19 has an angle 21 integral therewith, and the resin cover 19 has an abutment portion 27 which protrudes from the upper frame 4 toward the interior of the room and abuts against the main body 26, the resin cover 19 can effectively block heat transfer between the metal portion of the upper frame 4 and the room, thereby reliably preventing condensation on the interior side of the room.

[0017] As shown in Figure 4, the upper frame 7 of the outer screen 2 and the inner screen 3 is constructed by engaging and connecting an aluminum profile 45 arranged on the outside of the room and a plastic profile 46 arranged on the inside of the room. The aluminum profile 45 and the plastic profile 46 form a glass swallowing groove 47 that opens toward the inner periphery, and the upper edge of the double-glazed glass 11 is held in the glass swallowing groove 47 via a glass channel 48. The resin profile 46 has a single hollow portion 49, and a rail-entering groove 50 that opens toward the outer periphery is formed between the exterior wall 45a of the aluminum profile 45 and the exterior wall 46a of the resin profile 46. A recess 51 is formed in the exterior wall 46a of the resin profile 46, facing the rails 14, 15 of the upper frame 4. A tension material holder 52 is formed on the upper end of the outdoor side wall 45a of the aluminum profile 45, and an outdoor side tension material (one-side tension material) 53 which is held by the tension material holder 52 and abuts against the outdoor side surfaces of the rails 14, 15 of the upper frame 4 is provided in the rail swallowing groove 50. Furthermore, a mounting member 55 is attached to the rail-swallowing groove 50, and the mounting member 55 is provided with an interior-side tension member (other-side tension member) 54 that abuts against the interior side of the rails 14, 15 of the upper frame 4. The mounting member 55 is provided over the entire length of the upper frame 7 in the longitudinal direction. The mounting member 55 is formed of an extruded aluminum alloy profile, and has a substantially L-shaped cross section with a horizontal wall 56 and a vertical wall 57. The vertical wall 57 abuts against the interior-side wall of the rail-swallowing groove 50, and the horizontal wall 56 abuts against the bottom wall of the rail-swallowing groove 50, and is fixed and attached with screws 58 from the outer periphery. At the upper end of the vertical wall 57, a retaining portion 59 that holds the base of the interior-side tension member 54 is formed protruding toward the interior, and the retaining portion 59 enters the recess 51 of the resin profile 46.

[0018] As described above, this opening building material has high airtightness and sound insulation performance by providing an outside airtight material 53 that abuts on the outside surface of the rails 14, 15 of the upper frame 4 in the rail swallowing groove 50 of the upper frame 7, and an inside airtight material 54 that abuts on the inside surface of the rails 14, 15 of the upper frame 4, forming a double airtight line on both the outside and inside of the room. Specifically, the airtightness meets the highest grade A-4 of the grades A-1 to A-4 specified in JIS A 4706-2000. Furthermore, even if the plastic profile 46 on the indoor side of the upper frame 7 melts and is lost due to the heat of the fire during a fire, the metal mounting material 55 remains, preventing the upper frame 7 from coming off the rails 14, 15 of the upper frame 4, thereby providing this opening building material with fire resistance. In addition, the mounting material 55 has a retaining portion 59 for the indoor-side tension material 54, and the retaining portion 59 fits into the recess 51 provided in the upper frame 7, so that the groove width of the rail-swallowing groove 50 in the upper frame 7 does not narrow even when the mounting material 55 is installed.

[0019] If such high airtightness is not required, as shown in Figure 8, mounting material 55 with indoor-side airtight material 54 is not attached to rail-entering groove 50 of upper frame 7, but only outdoor-side airtight material 53 is attached to rail-entering groove 50 of upper frame 7. In this case, the airtightness will be the same A-4 grade as when mounting material 55 is attached, but the numerical value will be better when mounting material 55 is attached, even within the same A-4 grade.

[0020] In this way, by choosing whether or not to attach the mounting material 55 with the indoor airtight material 54 in the rail swallowing groove 50 of the upper frame 7, it is possible to manufacture opening building materials with different airtightness performance, which makes it easy to assemble.

[0021] As shown in Figure 2, the door frame 9 of the outer shoji 2 is constructed by engaging and connecting an aluminum profile 60 arranged on the outside of the room and a plastic profile 61 arranged on the inside of the room, and a handle portion 62 is formed in a recessed shape on the indoor side of the plastic profile 61 over the entire longitudinal length.

[0022] As shown in Figure 2, the vertical frame 6 on the outer shoji 2 side, located on the left side as viewed from inside the room, has a resin vertical frame cover 63 attached to the interior side, which covers the inner peripheral side of the vertical frame 6. The vertical frame cover 63 has a hollow section 64 divided into multiple chambers, and has an angle 21 screwed to the frame 20 as an integral part. By attaching the vertical frame cover 63 in this way, the insulation performance is improved and condensation on the interior side is prevented. Also, by attaching the vertical frame cover 63, the part of the door end frame 9 on the outer peripheral side of the glass support piece 65 is hidden by the vertical frame cover 63 as viewed from inside the room.

[0023] The vertical frame cover 63 has a step 66 that opens toward the inner periphery and the outside of the room, and a finger insertion space 67 for inserting fingers when placing a hand on the handle 62 of the door end frame 9. Furthermore, a soft inner peripheral side wall 68 is formed to protrude from the inner periphery of the vertical frame cover 63 toward the door end frame 9, and the finger insertion space 67 is hidden by the inner peripheral side wall 68. When opening the outer shoji screen 2, as shown by the phantom lines in Figure 2, the inner side wall 68 of the vertical frame cover 63 is pushed with the tip of a finger to deform it toward the outer periphery, and a finger is then inserted into the finger insertion space 67, and the finger is then hooked onto the handle portion 62 of the door end frame 9 to open the outer shoji screen 2.

[0024] In this way, this opening building material is easy to use because by attaching the vertical frame cover 63 to the indoor side of the door end frame 9, even if the handle 62 of the door end frame 9 is hidden, the outer screen 2 can be opened and closed without any problems by deforming the inner peripheral side wall 68 of the vertical frame cover 63. Moreover, by attaching the vertical frame cover 63, the insulation is improved, and by hiding the door end frame 9 with the vertical frame cover 63, the interior design and visibility are improved.

[0025] 9 and 10 show modified examples of the vertical frame cover 63. In the example of Fig. 9(a), a retaining groove 69 is formed on the exterior side surface of the step portion 66 of the vertical frame cover 63, and a separate inner peripheral side wall 68 formed in a hollow shape from rubber or the like is provided and held in the retaining groove 69, thereby hiding the finger insertion space 67. According to this example, the inner peripheral side wall 68 is detachable, making maintenance easy. In the example shown in Fig. 9(b), the inner peripheral side wall 68 of the vertical frame cover 63 is formed into a hollow shape with a substantially right-angled triangular cross section, and the hypotenuse is bent inward. According to this example, even if the inner peripheral side wall 68 is repeatedly deformed, the original shape can be maintained. In the example of Figure 10(a), an inner peripheral side wall 68 formed as a separate part is attached by engaging an engagement piece 70 formed on the inside end with a groove 71 provided in a step 66 of a vertical frame cover 63, and the inner peripheral side wall 68 is deformed so as to tilt toward the outer periphery with the engagement piece 70 as a fulcrum, allowing the handhold 62 of the door end frame 9 to be grasped. The inner peripheral side wall 68 is biased toward the inner periphery by a rubber piece 72 provided on the outer periphery. In the example of Figure 10(b), the inner circumferential side wall 68 is formed as a separate part from the vertical frame cover 63, and the inner circumferential side wall 68 is deformed so as to move parallel to the outer periphery, allowing the handhold 62 of the door end frame 9 to be placed on it. The inner circumferential side wall 68 is biased inward by a sponge 73 provided on the outer periphery. In the example of Figure 10(c), the inner periphery side wall 68 is formed as a separate part from the vertical frame cover 63, and the inner periphery side wall 68 is deformed so that it tilts toward the outer periphery with the inside end as a fulcrum, allowing the handhold 62 of the door end frame 9 to be placed on it. The inner periphery side wall 68 is biased toward the inner periphery by a sponge 73 provided on the outer periphery.

[0026] As shown in Figure 2, the door frame 9 of the inner shoji 3 is constructed by engaging and connecting an aluminum profile 74 arranged on the outside of the room and a plastic profile 75 arranged on the inside of the room, and a handle portion 76 is formed at the inner end of the plastic profile 75 so as to protrude toward the inside of the room. The vertical frame 6 on the inner shoji 3 side, located on the right side as viewed from inside the room, has a resin vertical frame cover 77 attached to the inside of the room, which covers the inner peripheral side of the vertical frame 6. The vertical frame cover 77 has an angle 21 integral with it that is screwed to the frame 20. As with the outer shoji 2 side, the part of the door end frame 9 of the inner shoji 3 that is outer circumferentially beyond the glass support piece 65 as viewed from inside the room is hidden by the vertical frame cover 77.

[0027] Fig. 11 shows the second embodiment of the opening construction material. The upper frame 4 has an outer screen guide groove 78 that guides the upper part of the upper frame 7 of the outer screen 2, and an inner screen guide groove 79 that guides the upper part of the upper frame 7 of the inner screen 3, and a resin cover 19 is attached to cover the inner screen guide groove 79 from the inner periphery side. Within the outer screen guide groove 78 and inner screen guide groove 79 of the upper frame 4, outdoor side tight material (one-side tight material) 53 is provided hanging down from the bottom wall of the outer screen guide groove 78 and inner screen guide groove 79 to seal the gap between the outer screen guide groove 78 and the upper frame 7 of the outer screen 2, and the gap between the inner screen guide groove 79 and the upper frame 7 of the inner screen 3, respectively, at an outdoor side position. Furthermore, within the outer screen guide groove 78 and inner screen guide groove 79 of the upper frame 4, an interior side tight fitting material (other side tight fitting material) 54 which seals the gap between the outer screen guide groove 78 and the upper frame 7 of the outer screen 2, and the gap between the inner screen guide groove 79 and the upper frame 7 of the inner screen 3, respectively, on the interior side, is provided hanging down from mounting material 55 which is fixed to the bottom wall of the outer screen guide groove 78 and inner screen guide groove 79 with screws 58.

[0028] This opening building material has an exterior seal material 53 and an interior seal material 54 provided in the exterior screen guide groove 78 and interior screen guide groove 79 of the upper frame 4, respectively, and forms a double airtight line on the exterior and interior sides between the upper frame 4 and the interior and exterior screens 2, 3, thereby achieving high airtightness and soundproofing performance.

[0029] When such high airtightness performance is not required, as shown in Figure 12, the mounting material 55 with the indoor side tight material 54 is not installed in the outer screen guide groove 78 and inner screen guide groove 79 of the upper frame 4, and only the outdoor side tight material 53 is installed in the outer screen guide groove 78 and inner screen guide groove 79 of the upper frame 4.

[0030] In this way, by choosing whether or not to attach the mounting material 55 with the indoor airtight material 54 in the outer screen guide groove 78 and inner screen guide groove 79 of the upper frame 4, it is possible to manufacture opening building materials with different airtightness performance, which makes it easy to assemble.

[0031] As described above, this opening construction material (first embodiment) comprises an upper frame 4 and heat transfer suppressing members 22, 23. The upper frame 4 has an outer rail 14 that supports the outer screen 2, an inner rail 15 that supports the inner screen 3, and an angle 21. The heat transfer suppressing members 22, 23 are made of resin and deform in the vertical direction so as not to interfere with the removal and installation of the screens 2, 3. The outer heat transfer suppressing member 22 is provided only on the outer screen 2 side between the outer rail 14 and the inner rail 15. The inner heat transfer suppression member 23 is provided between the inner rail 15 and the angle 21 over approximately the entire length of the upper frame 4, and the outer heat transfer suppression member 22 and the inner heat transfer suppression member 23 narrow the gap between the upper frame 4 and the inner and outer screens 2, 3 (see Figure 4), so that the heat transfer suppression members 22, 23 do not get in the way when removing and attaching the screens 2, 3, making it easy to use, and further, narrowing the gap between the upper frame 4 and the inner and outer screens 2, 3 by the outer heat transfer suppression member 22 and the inner heat transfer suppression member 23 improves the insulation performance. The heat transfer suppression member (inner heat transfer suppression member) 23 is attached to the upper frame 4 from the inner periphery so as to be freely attached and detached. Since the heat transfer suppression member 23 hides the screws 30 that attach the upper frame 4 to the main body 26, the heat transfer suppression member 23 can be easily attached and detached for ease of use, and since the screws 30 that attach the upper frame 4 to the main body 26 are hidden, the design is also good. The upper frame 4 has a resin angle forming member (resin cover) 19 on the indoor side, and the inner heat transfer suppression member 23 is attached to the angle forming member 19 so as to be freely attached and detached from the inner side, so that the inner heat transfer suppression member 23 can be easily attached and detached, making it easy to use and improving the insulation performance. The outer heat transfer suppression member 22 is provided at a position between the outer rail 14 and the inner rail 15, close to the interior of the room, thereby reducing material costs while maintaining the function of suppressing heat transfer, thereby enabling costs to be reduced. In addition, the shoji screens 2, 3 can be easily removed and attached.

[0032] This opening building material (first embodiment) comprises a frame material (upper frame) 4, a resin cover 19, and a heat transfer suppression member (inner heat transfer suppression member) 23, the resin cover 19 covers the frame material 4 from the inner periphery side, the heat transfer suppression member 23 narrows the gap between the frame material 4 and the shoji (inner shoji) 3 supported by the frame material 4, and is provided so as to be freely attached and detached from the inner periphery side of the resin cover 19, and the heat transfer suppression member 23 hides the screws 30 that attach the resin cover 19 to the frame 26 (see FIG. 4), so that the heat transfer suppression member 23 can be easily attached and detached, and is easy to use, and the design is also good because the screws 30 that attach the resin cover 19 to the frame 26 are hidden. Moreover, by covering the frame material 4 from the inner periphery side with the resin cover 19 and providing the heat transfer suppression member 23 on the inner periphery side of the resin cover 19 to narrow the gap between the frame material 4 and the shoji 3, the insulation performance is improved. This building material for openings (first embodiment) comprises a frame material (upper frame) 4, a resin cover 19, and a heat transfer suppression member (inner heat transfer suppression member) 23, the resin cover 19 covers the frame material 4 from the inner periphery side and has an angle 21 integral therewith, the heat transfer suppression member 23 narrows the gap between the frame material 4 and the screen (inner screen) 3 supported by the frame material 4, and is provided so as to be freely attached and detached from the inner periphery side of the resin cover 19 (see FIG. 4), so that the heat transfer suppression member 23 can be easily attached and detached, and is easy to use. Moreover, by covering the frame material 4 from the inner periphery side with the resin cover 19 having the angle 21 integral therewith, and by providing the heat transfer suppression member 23 on the inner periphery side of the resin cover 19 to narrow the gap between the frame material 4 and the screen 3, the insulation performance is improved. The resin cover 19 has a contact portion 27 that protrudes toward the inside of the room from the frame material 4 and abuts against the main body 26, thereby blocking heat transfer between the inside of the room and the frame material 4, further improving the insulation performance.

[0033] The manufacturing method of this opening building material (first embodiment) comprises an upper frame 4 and an upper frame 7, the upper frame 4 having rails 14, 15, the upper frame 7 having a rail swallowing groove 50 that swallows the rails 14, 15, and a one-side airtight material (outdoor airtight material) 53 that abuts against one side of the exterior or interior side of the rails 14, 15 is attached within the rail swallowing groove 50, and by selecting whether or not to attach a mounting material 55 having an other-side airtight material (indoor airtight material) 54 that abuts against the other side of the rails 14, 15 to the rail swallowing groove 50, opening building materials with different airtight performance can be manufactured (see Figures 4 and 8), which makes it easy to assemble. The mounting material 55 is made of metal and is attached in the rail-swallowing groove 50 of the upper frame 7. Even if the resin profile 46 of the upper frame 7 melts and is lost during a fire, the metal mounting material 55 remains and gets caught on the rails 14, 15, preventing the screens 2, 3 from coming off. The mounting material 55 has a retaining portion 59 for the other side tension material 54, and the retaining portion 59 fits into a recess 51 provided in the upper frame 7 (see Figure 4), so that the groove width of the rail-engaging groove 50 in the upper frame 7 does not narrow even when the mounting material 55 is attached. The manufacturing method of this opening building material (second embodiment) comprises an upper frame 4 and an upper frame 7, the upper frame 4 having grooves (external screen guide groove 78, inner screen guide groove 79) that guide the upper part of the upper frame 7, and by selecting whether or not to install a mounting material 55 having a one-side airtight material (outside airtight material) 54 that closes the gap between the grooves 78, 79 of the upper frame 4 and the upper frame 7 on one side, either the outside or the inside of the room, in the grooves 78, 79 of the upper frame 4, and whether or not to install the mounting material 55 having the other-side airtight material (inside airtight material) 54 that closes the gap between the grooves 78, 79 of the upper frame 4 and the upper frame 7 on the other side, in the grooves 78, 79 of the upper frame 4, opening building materials with different airtightness performance can be manufactured (see Figures 11 and 12), which makes it easy to assemble.

[0034] This opening building material (first embodiment) comprises a door end frame 9 and a vertical frame cover 63 located on the interior side of the door end frame 9, the vertical frame cover 63 having a finger insertion space 67 for inserting fingers when placing hands on the door end frame 9 and an inner peripheral side wall 68 that hides the finger insertion space 67, and by deforming the inner peripheral side wall 68 so that hands can be placed on the handle part 62 of the door end frame 9, the shoji (outer shoji) 2 can be easily opened by placing hands on the handle part 62 of the door end frame 9, making it easy to use. Moreover, by providing the vertical frame cover 63 on the interior side of the door end frame 9, heat insulation performance is improved. The vertical frame cover 63 has a step 66 that opens toward the inner periphery and the outside of the room, and the end frame 9 has a recessed handle 62 on the indoor side, making it easy to place your hand on the handle 62 of the end frame 9, improving the operability of the shoji screen 2. The vertical frame cover 63 is made of resin, and the inner side wall 68 is soft and protrudes from the inner side of the vertical frame cover 63 toward the door frame 9, thereby ensuring good operability of the shoji screen 2 while preventing condensation on the inside of the room.

[0035] The present invention is not limited to the above-described embodiment. The cross-sectional shape and material of the upper frame and the heat transfer suppression member can be changed as appropriate. The cross-sectional shape of the resin cover can be changed as appropriate. The outer heat transfer suppression member is not necessarily required. In addition, a resin cover can be provided to cover the space between the rails of the upper frame from the inner periphery side, and the heat transfer suppression member can be attached and detached from the inner periphery side to the resin cover. The present invention is not limited to sliding windows, and can be applied to single-sliding windows and the like. Furthermore, the present invention can be applied to sash windows in which the shoji screen slides along the left and right vertical frames, and in that case, the resin cover is provided to cover the vertical frame from the inner periphery side, and the heat transfer suppression member is provided to be attached and detached from the inner periphery side to the resin cover. [Explanation of symbols]

[0036] 1 slot 2. Outer Shoji Screen 3. Inner Shoji Screen 4 Upper frame (frame material) 7 Upper stile 9 Door frame 14 Outer rail 15 Inner rail 19 Resin cover 21 Angle 22 Outside heat transfer suppression member 23 Inner heat transfer suppression member 26 skeleton 30 Screws 50 Rail Entrance Groove 53 Outdoor weatherstripping material (one side weatherstripping material) 54 Indoor side tension material (other side tension material) 55 Mounting material 62 Handle 63 Vertical Frame Cover 67 Finger insertion space 68 Inner side wall 78 Outer Shoji Guide Groove (Groove) 79 Inner Shoji Guide Groove (Groove)

Claims

1. This building material for an opening comprises a frame material, a resin cover, and a heat transfer suppression member, the resin cover covering the frame material from the inner periphery side, the heat transfer suppression member narrowing the gap between the frame material and the shoji screen supported by the frame material, and being detachably attached to the resin cover from the inner periphery side, and the heat transfer suppression member hiding the screws that attach the resin cover to the main body.

2. This opening building material comprises a frame material, a resin cover, and a heat transfer suppression member, the resin cover covering the frame material from the inner periphery and having an angle integral therewith, the heat transfer suppression member narrowing the gap between the frame material and a shoji screen supported by the frame material, and being attached to and detached from the inner periphery of the resin cover.

Images