Doors and fittings

Abstract

The present invention provides a building component that can effectively suppress the expansion and contraction of a resin material fixed to a metal material due to temperature changes. [Solution] The joinery 10 has a middle rail 28 between the left and right vertical frames 25, 26, which is made up of a metal middle rail 50 on the exterior side and a resin middle rail 51 on the interior side. The middle rail 28 is joined to the vertical frames 25, 26 in a mortise and tenon joint manner. The metal middle rail 50 and the resin middle rail 51 have first engaging portions 79 that engage with each other at the top and bottom, and second engaging portions 81 that engage with each other between the two first engaging portions 79. The second engaging portion 81 is formed when a metal engaging piece 62, which is part of the metal middle rail 50, is pressed against and crimped against a resin engaging piece 80, which is part of the resin middle rail 51, near at least one of the left and right ends of the middle rail 28, thereby forming a crimped portion 83.

Description

Technical Field

[0001] The present invention relates to fittings.

Background Art

[0002] For fittings such as windows, a composite material of a metal material and a resin material may be applied as a frame material or a sash material. The frame material and the sash material are in a long shape. Since the degree of expansion and contraction in the longitudinal direction due to temperature change of the resin material is larger than that of the metal material, caulking fixation may be performed on the metal material as in Patent Document 1. In this fitting, one end in the width direction of the resin material is caulked to the metal material, and the other end is engaged.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the configuration of Patent Document 1, one end has a caulking structure and the other end has an engaging structure, so the balance in the width direction is poor, and there is a concern that expansion and contraction due to temperature change cannot be sufficiently suppressed.

[0005] The present invention has been made in view of the above problems, and an object thereof is to provide a fitting that can preferably suppress expansion and contraction due to temperature change of a resin material fixed to a metal material.

Means for Solving the Problems

[0006] To solve the above-mentioned problems and achieve the objective, the building component according to the present invention comprises a partition material that spans between two profile members, consisting of an exterior metal partition material and an interior resin partition material at a position separating two surface materials, wherein the partition material is joined to the profile member in a mortise and tenon manner, and the metal partition material and the resin partition material have first engaging portions that engage with each other at or near both ends in the width direction, and second engaging portions that engage with each other between the two first engaging portions, and the second engaging portions are characterized in that a metal engaging piece, which is part of the metal partition material, is crimped to a resin engaging piece, which is part of the resin partition material, near at least one end of the partition material in the longitudinal direction. [Effects of the Invention]

[0007] In the building fittings according to the present invention, in the second engaging portion, a metal engaging piece, which is part of the metal partition material, is crimped to a resin engaging piece, which is part of the resin partition material, thereby effectively suppressing the expansion and contraction of the resin material fixed to the metal material due to temperature changes. [Brief explanation of the drawing]

[0008] [Figure 1] This is a view of a door or window, which is an embodiment of the present invention, as seen from the interior side. [Figure 2] This is a cross-sectional view of the door / window. [Figure 3] This is a vertical cross-section of the door / window. [Figure 4] This is a longitudinal cross-sectional view of the central crossbar and its surrounding area. [Figure 5] This is a cross-sectional view of the end of the central support beam and its surrounding area. [Figure 6] This is a cross-sectional perspective view of the end of the central support beam and a portion of its surrounding area. [Figure 7] This is a partial cross-sectional perspective view of the end of the middle rail, seen from the interior side. [Figure 8] This is a diagram of a sealer. [Modes for carrying out the invention]

[0009] The embodiments of the building components according to the present invention will be described in detail below with reference to the drawings. However, the present invention is not limited to these embodiments.

[0010] In the following, for convenience, the terms "depth direction" and "face direction" may be used. The depth direction (indicated by arrow Z in the diagram) is the direction of interior and exterior along the depth of the joinery. Surfaces and walls along the depth direction may be called the depth surface and depth wall. The face direction is the direction along the vertical direction perpendicular to the depth direction (indicated by arrow Y in the diagram) for elements that extend horizontally, such as top frames, bottom frames, top stiles, and bottom stiles. For elements that extend vertically, such as vertical frames and vertical stiles, it is the direction along the horizontal direction perpendicular to the depth direction (indicated by arrow X in the diagram). Surfaces and walls along the face direction may be called the face surface and face wall.

[0011] Figure 1 is a view of the interior side of the door / window 10, which is an embodiment of the present invention. Figure 2 is a cross-sectional view of the door / window 10. Figure 3 is a vertical cross-sectional view of the door / window 10. Some parts, such as the crescent lock 48 in Figure 1, are omitted in Figures 2 and 3.

[0012] The joinery 10 comprises an opening frame 12 fixed to an opening in the building structure, and two outer sashes 14 and inner sashes 15 slidably arranged inside the opening frame 12. The arrows in Figure 1 indicate the opening direction of each sash 14, 15. There may be one or more sashes. The joinery 10 may also be of other types, such as a casement window.

[0013] The opening frame 12 forms a rectangular opening 16 by framing an upper frame 18, a lower frame 20, and left and right vertical frames 22 around its perimeter. The upper frame 18 consists of a metal upper frame 18a and a resin upper frame 18b, the lower frame 20 consists of a metal lower frame 20a and a resin lower frame 20b, and the vertical frames 22 consist of a metal vertical frame 22a and a resin vertical frame 22b, each being a metal-resin composite material. Each metal material is an extruded profile of a metal such as aluminum (including alloys), and each resin material is an extruded profile of a resin such as polyvinyl chloride resin (PVC), and they are configured to have a cross-section that is almost uniform along the entire length. The same applies to each frame material which will be described next.

[0014] The outer sliding door 14 and the inner sliding door 15 have a frame body 27 constructed by an upper frame 23, a lower frame 24, a meeting frame (vertical member, shaped member) 25, and a door edge frame (vertical member, shaped member) 26 surrounding the four sides; a middle rail (horizontal member, partition member) 28 provided between the left and right meeting frame 25 and door edge frame 26; and facing materials (upper facing material) 29a and facing materials (lower facing material) 29b held by the frame body 27 and the middle rail 28. Facing material 29a is on the upper side of the middle rail 28, and facing material 29b is on the lower side. In other words, the middle rail 28 is a partition member located in a position that separates the two facing materials 29a and 29b. Facing materials 29a and 29b are, for example, double-glazed glass. In this application, the meeting stile 25 and the door frame 26 are also referred to as vertical stiles 25 and 26. The outer sliding door 14 and the inner sliding door 15 are supported so as to be slidable by rails 30.

[0015] The following explanation will use the interior shoji screen 15 as an example. The upper frame 23 consists of a metal upper frame 23a and a resin upper frame 23b, the lower frame 24 consists of a metal lower frame 24a and a resin lower frame 24b, the vertical frame 25 consists of a metal vertical frame 31 and a resin vertical frame 32, and the vertical frame 26 consists of a metal vertical frame 33 and a resin vertical frame 34.

[0016] The metal vertical frame 31 has two hollow portions 31a and 31b arranged in the prospective direction, an outdoor-side pressing piece 35 and an indoor-side pressing piece 36 that project toward the door tip side. At the end of the outdoor-side pressing piece 35, a small folding portion 35a (see FIG. 5) is formed on the indoor side. The hollow portions 31a and 31b, the outdoor-side pressing piece 35, and the indoor-side pressing piece 36 form a face material holding vertical space 37 that opens toward the door tip side. The face material holding vertical space 37 holds the left and right ends of the face materials 29a and 29b via a seal 38. The seal 38 is supported by a backup material. At the bottom of the face material holding vertical space 37, a J-shaped block engaging piece 49 is provided to position and fix the setting block 39. The block engaging piece 49 may be omitted depending on the design conditions. The face materials 29a and 29b are held via the setting block 39.

[0017] The resin vertical frame 32 is configured in a substantially L shape so as to cover the indoor side and the calling side (the left side in FIG. 2) while ensuring a gap with respect to the metal vertical frame 31, and has an indoor-side hollow portion 32a, a hollow portion 32b that extends outward from the end of the hollow portion 32a, and a fin piece 32c that further extends outward from the hollow portion 32b. The resin vertical frame 32 is engaged with the end of the indoor-side pressing piece 36 by an angular U-shaped engaging portion 40 at the end on the door tip side. The resin vertical frame 32 is further engaged with the metal vertical frame 31 by an engaging portion 42d at the outdoor-side end and an engaging portion 42e formed by an L-shaped bend. The gap secured between the metal vertical frame 31 and the resin vertical frame 32, and the hollow portions 31a, 31b, 32a, and 32b improve the heat insulation performance. The same applies to the corresponding gaps and hollow portions in the upper frame 23, the lower frame 24, the vertical frame 26, etc.

[0018] The metal vertical frame 33 is formed such that the same face material holding vertical space 37 as described above opens to the summons side, and further has a hollow portion 33a that protrudes toward the metal vertical frame 22a. The resin vertical frame 34 is configured in a crank shape so as to cover the indoor side and the side (the right side in FIG. 2) of the face material holding vertical space 37 and the indoor side of the hollow portion 33a while securing a gap with respect to the metal vertical frame 33, and has a hollow portion 34a on the indoor side. The resin vertical frame 34 is engaged with the end portion of the indoor side pressing piece 36 by an engaging portion 40 at the end portion on the summons side. The resin vertical frame 34 is engaged with the metal vertical frame 33 by an engaging portion 34b at the end portion on the door tip side.

[0019] The metal upper frame 23a forms a face material holding downward space 43 with an outdoor side pressing piece 46 and an indoor side pressing piece 47 protruding downward. The face material holding downward space 43 is an opening facing downward. The face material holding downward space 43 holds the upper end of the face material 29a via a seal 38. The resin upper frame 23b has substantially the same shape as the resin vertical frame 34 and covers the metal upper frame 23a.

[0020] The metal lower frame 24a forms a face material holding upward space 44 with an outdoor side pressing piece 46 and an indoor side pressing piece 47 protruding upward. The face material holding upward space 44 is an opening facing upward. The face material holding upward space 44 holds the lower end of the face material 29b via a seal 38 and a setting block 39. A roller chamber 24aa supported by a rail 30 via a roller 45 is provided below the face material holding upward space 44. A block engaging piece 49 is provided at the bottom of the face material holding upward space 44. The resin lower frame 24b is configured to cover the indoor side and the lower part of the face material holding upward space 44 and the indoor side of the roller chamber 24aa while securing a gap with respect to the metal lower frame 24a.

[0021] Next, the middle rail 28 and its peripheral portion will be described. FIG. 4 is a longitudinal sectional view of the middle rail 28 and its peripheral portion. As shown in FIGS. 3 and 4, the middle rail 28 is composed of an outdoor metal middle rail (metal horizontal member, metal partition member) 50 and an indoor resin middle rail (resin horizontal member, resin partition member) 51. The prospective width of the middle rail 28 in this embodiment is about 50 mm, and the vertical width is about 60 mm.

[0022] The metal crossbar 50 has a downward-facing space 43 for holding the facing material that opens downward, and an upward-facing space 44 for holding the facing material that opens upward. In the downward-facing space 43, the outdoor-side retaining piece 46 and the indoor-side retaining piece 47 protrude downward and hold the upper end of the facing material 29b via the seal 38. In the upward-facing space 44, the outdoor-side retaining piece 46 and the indoor-side retaining piece 47 protrude upward and hold the lower end of the facing material 29a via the seal 38 and the setting block 39. The two upper and lower outdoor-side retaining pieces 46 are continuous and form the outdoor-side wall of the metal crossbar 50. The vertical space 37, the downward-facing space 43, and the upward-facing space 44 are in communication with each other and surround all four sides of the facing material 29a. Similarly, the vertical space 37, the downward-facing space 43, and the upward-facing space 44 are in communication with each other and surround all four sides of the facing material 29b.

[0023] The indoor-side retaining piece 47 consists of a base piece 47a and a tip piece 47b. The base piece 47a is relatively long, and the tip piece 47b is relatively short. The tip piece 47b is slightly shifted towards the indoor side, giving the indoor-side retaining piece 47 an overall crank shape. The amount of shift of the tip piece 47b towards the indoor side is approximately the thickness of the plate. The base piece 47a forms the indoor-side visible wall of the downward-facing space 43 and the upward-facing space 44 for holding the surface material. In other words, the indoor-side visible surface 47aa of the base piece 47a forms the indoor side of the visible wall that forms spaces 43 and 44.

[0024] The upward-facing space 44 for holding the facing material has an indoor bottom wall 52 and an outdoor bottom wall 53 that slope downwards in a stepped manner from the indoor side to the outdoor side. The difference in height between the indoor bottom wall 52 and the outdoor bottom wall 53 is small, about the thickness of the plate. In this embodiment, the ratio of the depth width of the indoor bottom wall 52 and the outdoor bottom wall 53 is about 7:5. In this embodiment, there are two steps in the stepped bottom wall, but there may be three or more steps. Also, the term "stepped" in this application is not strictly limited to consisting of a horizontal plane and a vertical plane, but may be slightly inclined. A block engaging piece 49 is provided on the upper surface of the indoor bottom wall 52 approximately in the center of the metal central support 50, and positions and fixes the setting block 39. As described above, the block engaging piece 49 may be omitted.

[0025] The outermost of the multiple bottom walls, the outdoor bottom wall 53, is provided with a C-shaped screw hole 54 for fastening to the vertical frames 25 and 26 with screws. This screw hole 54 is also called the first screw hole 54a. Similar screw holes 54 are also provided in the upper frame 23 and the lower frame 24. The first screw hole 54a has a downward opening, protruding upwards and not downwards. The outdoor bottom wall 53 has a first drain hole 55 formed so as to traverse the first screw hole 54a in the depth direction. The block engaging piece 49 is notched only where it faces the first drain hole 55 (see Figure 5) so that water can flow in the depth direction. A crimp 49a is formed at one end of this notch. The first drain hole 55 is formed at a location slightly away from the end of the metal middle rail 50 due to layout considerations (see Figure 5). Since the first screw holes 54a are provided along the entire length of the metal intermediate rail 50, except for the first drain holes 55, water that has entered by running along the indoor side of the outdoor retaining piece 46 within the upward space 44 for holding the surface material can be prevented from entering further into the indoor side.

[0026] The downward-facing space 43 for holding the surface material has an indoor ceiling wall 56 and an outdoor ceiling wall 57 that slope downward in a stepped manner from the indoor side to the outdoor side. The difference in height between the indoor ceiling wall 56 and the outdoor ceiling wall 57 is small, about the thickness of the board. In this embodiment, the ratio of the depth width of the indoor ceiling wall 56 and the outdoor ceiling wall 57 is about 2:1. A vertical partition wall 58 is provided slightly on the indoor side of the center of the metal middle rail 50, connecting the indoor bottom wall 52 and the indoor ceiling wall 56. The vertical partition wall 58 is a partition in the vertical direction. An empty space 59 is formed on the outdoor side of the vertical partition wall 58, and a rectangular first recess 60 is formed on the indoor side. The first recess 60 opens to the indoor side.

[0027] A second drainage hole 61 is formed in the exterior ceiling wall 57 to drain water from the hollow section 59. The second drainage hole 61 is formed at the longitudinal end of the metal intermediate rail 50 (see Figure 5), and does not overlap with the facing material 29b, making it easy to drain water downwards. The second drainage hole 61 is formed by cutting out the end of the metal intermediate rail 50.

[0028] A downward-facing screw hole 54 is provided slightly inward from the vertical partition wall 58 in the interior ceiling wall 56. This screw hole 54 is also called the second screw hole 54b. The two screw holes 54a and 54b in the metal rib 50 are positioned in approximately rotationally symmetrical locations with respect to the center of the metal rib 50, resulting in good balance. The second screw hole 54b protrudes vertically with respect to the interior ceiling wall 56. The interior ceiling wall 56 is divided into an upper metal engaging piece 62 and a lower support piece 63 on the interior side of the second screw hole 54b. The metal engaging piece 62 protrudes from above the second screw hole 54b (one side where the bottom wall and the ceiling wall face each other in the vertical direction), and the support piece 63 protrudes from below the second screw hole 54b (the other side), each making effective use of the height of the second screw hole 54b and being formed slightly apart. The metal engaging piece 62 constitutes the lower wall of the first recess 60.

[0029] As described above, the first screw hole 54a provided in the exterior bottom wall 53 prevents water that has entered through the interior side of the exterior retaining piece 46 within the upward space 44 for holding the surface material from entering further into the interior. However, depending on the conditions, it may also be provided in the exterior top wall 57. In that case, considering the balance, the second screw hole 54b should be provided in the interior bottom wall 52. In this case, the metal engaging piece 62 constitutes the upper wall of the first recess 60.

[0030] The metal engaging piece 62 and the support piece 63 are parallel to each other, and the resin engaging piece 80, which will be described later, fits into them just right. To summarize, the first screw hole 54a is located on the exterior side of either the bottom wall of the upward-facing space 44 for holding the surface material or the top wall of the downward-facing space 43 for holding the surface material, and the second screw hole 54b is located on the interior side of either the bottom wall or the top wall. In the vertical direction of the second screw hole 54b, the metal engaging piece 62 protrudes from one side where the bottom wall and the top wall face each other, and the support piece 63 protrudes from the other side, with the metal engaging piece 62 and the support piece 63 positioned to sandwich the resin engaging piece 80.

[0031] A small downward-facing claw 62a is provided at the tip of the metal engaging piece 62. The metal engaging piece 62 is positioned on the outdoor side of the indoor-side facing surface 47aa of the indoor-side retaining piece 47. The indoor-side retaining piece 47, which forms part of the downward space 43 for holding the surface material, protrudes downward from the tip of the support piece 63. Three or more screw holes 54 may be provided in the metal intermediate rail 50.

[0032] The resin crossbar 51 is fixed to the metal crossbar 50 so as to leave a small gap on the interior side. The resin crossbar 51 is elongated in the vertical direction, with a vertical width ratio of approximately 1:1 and a depth width ratio of approximately 2:7 with respect to the metal crossbar 50. The resin crossbar 51 has two hollow sections 70, one above the other. The two hollow sections 70 are separated by a short horizontal partition wall 71, and the shape is vertically symmetrical. The horizontal partition wall 71 is a partition in the depth direction.

[0033] The indoor-facing visible wall of the resin residue 51 is flat. The outdoor-facing walls of the two hollow sections 70 consist of a central wall 72, two hollow intermediate walls 73 adjacent to the central wall 72 vertically, and upper and lower end walls 74. The hollow intermediate wall 73 is located approximately in the middle of the hollow section 70. The hollow intermediate wall 73 is approximately facing the base end piece 47a. The end walls 74 are approximately facing the tip piece 47b. The central wall 72, the two hollow intermediate walls 73, and the two end walls 74 each have approximately equal vertical widths. The central wall 72 and the end walls 74 are in the same position in the depth direction, and the hollow intermediate wall 73 is shifted outwards. The amount of the outward shift of the hollow intermediate wall 73 is approximately the thickness of each wall.

[0034] The central wall 72 is recessed inward relative to the adjacent cavity intermediate wall 73, forming a rectangular second recess 75 that opens outward. The second recess 75 faces the first recess 60 and forms a rectangular tool insertion space 76, as shown by the dashed line in Figure 4.

[0035] Small protrusions 77 project from near the upper and lower ends of the end wall 74. L-shaped engaging pieces 78 are provided at the upper and lower ends of the end wall 74. The two engaging pieces 78 project in a direction in which their bent portions are close to each other. The first engaging portion 79 is formed by inserting the tip piece 47b between the protrusions 77 and the engaging pieces 78. The first engaging portion 79 has substantially the same structure as the engaging portion 40 described above.

[0036] A resin engaging piece 80 protrudes toward the outside from near the upper end of the lower of the two cavity intermediate walls 73. A small upward-facing claw 80a is provided at the tip of the resin engaging piece 80. The metal intermediate rail 50 and the resin intermediate rail 51 are joined by sliding relative to each other in the longitudinal direction, and as described above, the resin engaging piece 80 is fitted and clamped between the metal engaging piece 62 and the support piece 63. The claw 62a of the metal engaging piece 62 and the claw 80a of the resin engaging piece 80 are positioned opposite each other in the depth direction to prevent them from coming loose. The metal engaging piece 62, the support piece 63, and the resin engaging piece 80 overlap vertically to form the second engaging portion 81. Note that, in the stage before the crimping portion 83 described later is formed, the second engaging portion 81 is in a state where the metal engaging piece 62 and the resin engaging piece 80, and the claw 62a and the claw 80a are not in contact, and a gap is secured.

[0037] Figure 5 is a cross-sectional view of the end of the intermediate rail 28 and its surrounding area. Figure 6 is a partial cross-sectional perspective view of the end of the intermediate rail 28 and its surrounding area. The metal intermediate rail 50 of the intermediate rail 28 is fitted into the vertical space 37 for holding the surface material, which is formed between the outdoor side retaining piece 35 and the indoor side retaining piece 36 of the vertical frame 25, and its end is abutted against the inner circumferential surface 31c of the metal vertical frame 31 via a sheet-like sealer 82. In the height range in which the metal intermediate rail 50 is inserted, the block engaging piece 49 and the folded portion 35a are cut out. The cut-out end 35aa of the folded portion 35a abuts against the edge of the outdoor side retaining piece 46 of the metal intermediate rail 50 without any gap. The outdoor side retaining piece 46 abuts against the indoor side visible surface of the outdoor side retaining piece 35. The tip piece 47b of the indoor side retaining piece 47 is partially cut out, and its cut-out end 47ba is in close contact with the edge of the indoor side retaining piece 36 without any gap. The base piece 47a of the indoor side retaining piece 47 is in contact with the outdoor side surface of the indoor side retaining piece 36.

[0038] Of the intermediate rails 28, the resin intermediate rail 51 is slightly shorter than the metal intermediate rail 50 and fits into the fitting hole 32d formed on the inner circumference side of the resin vertical frame 32. A portion of the resin intermediate rail 51 abuts against the end of the indoor side retaining piece 36. In this way, both the metal intermediate rail 50 and the resin intermediate rail 51 fit into the inner circumference opening of the vertical frame 25, and the intermediate rails 28 are joined to the vertical frame 25 in a spigot-like manner. The insertion depth D of the resin intermediate rail 51 into the fitting hole 32d is small, for example, about 2 mm.

[0039] Figure 7 is a partial cross-sectional perspective view of the end of the intermediate rail 28 as seen from the indoor side. Near the end of the second engaging portion 81, the metal intermediate rail 50 and the resin intermediate rail 51 are fixed by a crimping portion 83. In the crimping portion 83, the metal engaging piece 62 is pressed downward against the resin engaging piece 80 and crimped in place. The tool directly applies pressure to the metal engaging piece 62, while the resin engaging piece 62 is only indirectly subjected to pressure and may undergo plastic deformation but will not crack. During crimping, the lower surface of the resin engaging piece 80 is supported by the support piece 63. Further below the crimping portion 83 is an indoor-side retaining piece 47 that supports the support piece 63. The crimping portion 83 is fixed to the resin engaging piece 80 by forming two crimping protrusions 83a that are symmetrical on both sides relative to the metal engaging piece 62. The two crimping protrusions 83a are bent such that a portion of the indoor-side edge of the metal engaging piece 62 is sheared and inclined downward in a direction that separates them from each other.

[0040] The crimped portion 83 fixes the resin corrugator 51 to the metal corrugator 50, suppressing expansion and contraction due to temperature changes. Because expansion and contraction are suppressed, the resin corrugator 51 will not come out of the fitting hole 32d even when the depth D is small. Also, because expansion is suppressed, excessive force is not applied to the joint between the metal corrugator 50 and the resin corrugator 51. The crimped portion 83 is basically formed near both ends of the corrugator 28 in the longitudinal direction (in this case, the left-right direction), but if the insertion depth D for one of the fitting holes 32d can be set to be large, that one can be omitted. In other words, depending on the conditions, the crimped portion 83 only needs to be provided near at least one of the left and right ends of the corrugator 28.

[0041] The metal crossbar 50 and the resin crossbar 51 engage with each other at their upper and lower ends by first engaging portions 79, and further engage with each other between the two first engaging portions 79 by a second engaging portion 81. The crimping portion 83 is provided on the second engaging portion 81. Therefore, the vertical balance is good and expansion and contraction due to temperature changes can be suitably suppressed. The first engaging portions 79 are provided at or near both ends of the crossbar 28 in the width direction (in this case, the vertical direction).

[0042] The tool can be inserted into the tool insertion space 76 to perform crimping on the crimping portion 83. The vertical partition wall 58 and the central wall 72 can be used to position the tool. The second engagement portion 81 is provided between the upward-facing surface material holding space 44 and the downward-facing surface material holding space 43, and is free from layout constraints with the indoor-side retaining piece 47, surface materials 29a, 29b, setting block 39, etc., and can secure the tool insertion space 76. However, due to the relative positional relationship between the first engagement portion 79 and the upward-facing surface material holding space 44 and the downward-facing surface material holding space 43, it is difficult to provide space for tool insertion (see Figure 4).

[0043] The second engaging portion 81 is located slightly below the vertical center of the middle rail 28. By positioning the second engaging portion 81 in a location that avoids the vertical center, it is prevented from assembling the resin middle rail 51 upside down, which is effective, for example, when the indoor-facing surface of the resin middle rail 51 has an asymmetrical pattern.

[0044] As described above, the metal engaging piece 62 and the resin engaging piece 80 overlap vertically, and the claws 62a and 80a engage in a locking mechanism. Furthermore, since the crimping portion 83 crimps this second engaging portion 81 in the vertical direction, the resin engaging piece 80 is pulled slightly outward, that is, in the direction in which the engagement deepens, so that the engagement does not come undone in this portion. In addition, the metal engaging piece 62 and the resin engaging piece 80 abut without any gaps in the crimping portion 83 and its vicinity. The indoor-facing visible wall of the resin middle rail 51 is connected to the resin engaging piece 80 via the horizontal partition wall 71 and the central wall 72, and is pulled outward together with the resin engaging piece 80, so that no distortion occurs in the hollow portion 70. The metal engaging piece 62 and the resin engaging piece 80 overlap vertically, which reduces the vertical dimension, but depending on the design conditions, they may be made to overlap in the depth direction.

[0045] Since the metal engaging piece 62 is positioned on the outdoor side of the indoor side facing surface 47aa of the indoor side retaining piece 47, no special processing is required other than the crimping portion 83. The crimping tool enters the vertical center of the middle rail 28, resulting in high stability during operation.

[0046] Figure 8 shows the sealer 82. The sealer 82 will be explained with reference to Figures 4 and 8. The sealer 82 is slightly compressed when the end of the metal crossbar 50 abuts against it, and it provides a watertight seal between it and the inner circumferential surface 31c of the metal vertical frame 31. It has an irregular H-shape with the top and bottom of the rectangle cut out. The sealer 82 is inexpensive.

[0047] The sealant 82 has an uncompressed thickness of, for example, about 1.5 to 2 mm. The sealant 82 has a roughly square central portion 82a, an outdoor protrusion 82b that protrudes vertically on the outdoor side, and an indoor protrusion 82c that protrudes vertically on the indoor side. Two screw holes 82d are formed in the central portion 82a.

[0048] The depth and vertical width of the sealer 82 and the metal crossbar 50 are approximately equal, the outdoor retaining piece 46 abuts against the outdoor projection 82b, and the indoor retaining piece 47 abuts against the indoor projection 82c. The screw holes 82d are located in positions corresponding to the screw holes 54a and 54b. The central portion 82a is positioned between the notches of the block engaging piece 49, with a small gap between it and the notched end of the block engaging piece 49.

[0049] The upper edge 84 of the sealer 82 forms a horizontal edge (water guide edge) 84a, an inclined edge (water guide edge) 84b, and a bottom edge 84c in order from the indoor side to the outdoor side. The bottom edge 84c is located above the outdoor side bottom wall 53 and is the lowest of the upper edges 84. The bottom edge 84c is slightly above the screw hole 54a. The horizontal edge 84a and inclined edge 84b are relatively on the indoor side and relatively higher than the bottom edge 84c. The inclined edge 84b slopes downward towards the outdoor side at approximately a 45-degree angle and connects the horizontal edge 84a and the bottom edge 84c. The intersection of the horizontal edge 84a and the inclined edge 84b is slightly on the outdoor side of the block engaging piece 49. In this embodiment, when the depth width of the metal intermediate crossbar 50 is used as a reference, the horizontal edge 84a is about 1 / 2, the inclined edge 84b is about 1 / 6, and the bottom edge 84c is about 1 / 6.

[0050] There are three possible routes through which water can enter the upward-facing space 44 that holds the surface material. The first route is through which water that has fallen along the exterior or interior surface of the upper surface material 29a enters due to deterioration of the seal 38 or other reasons. The second route is through which water enters from the point where the notched end 35aa of the folded portion 35a and the exterior retaining piece 46 come into contact, or from the point where the notched end 47aba of the interior retaining piece 47 and the interior retaining piece 36 come into contact. Although these points are in contact without any gaps, they are so-called metal-to-metal contacts, and there is a possibility that a small amount of water may seep in. The third route is through which water enters the vertical space 37 that holds the surface material from the upper edge of the surface material 29a and falls down along the inner circumferential surface 31c of the metal vertical frame 31.

[0051] Water entering through the first and second pathways falls onto the indoor bottom wall 52 or the outdoor bottom wall 53 and is discharged to the outside via the first drain hole 55 and the second drain hole 61. Of this, the water that first falls onto the indoor bottom wall 52 is basically condensation water from inside the room and is extremely small in amount. Therefore, most of the water entering through the first and second pathways falls onto the outdoor bottom wall 53 without passing through the indoor bottom wall 52.

[0052] On the other hand, flooding from the third route can take two paths, as schematically shown in Figure 4: one indicated by arrow A1 towards the outside and the other by arrow A2 towards the inside. The path indicated by arrow A1 is generally on the outside of the block engagement piece 49, and the path indicated by arrow A2 is generally on the inside of the block engagement piece 49.

[0053] The water along the path of arrow A1 reaches the bottom edge 84c, or it first reaches the inclined edge 84b and is guided diagonally downward along the slope to reach the bottom edge 84c, from where it falls further down and passes through the outdoor bottom wall 53 to the first drain hole 55.

[0054] The water along the path of arrow A2 initially reaches the horizontal edge 84a, but due to the moderate thickness of the seal 82, it hardly falls down and moves horizontally. Then it reaches the inclined edge 84b and is guided diagonally downward along the slope to the bottom edge 84c, from where it falls further down and passes through the outdoor bottom wall 53 to the first drain hole 55.

[0055] In this way, water that flows down the inner perimeter surface 31c hardly passes through the indoor bottom wall 52, and is guided by the horizontal edge 84a and the inclined edge 84b to the bottom edge 84c, and then flows to the outdoor bottom wall 53, further preventing water from entering the room.

[0056] Furthermore, water that flows down the inner circumferential surface 31c is drained through drainage holes 55 and 61 formed in the middle rail 28, so drainage holes are not required in the metal vertical frames 31 and 33, and water does not need to pass through the hollow sections 31a and 31b. In other words, the drainage function is completed by processing only the middle rail 28, so drainage processing is not required on the vertical frames 25 and 26.

[0057] The water guide edge that guides water to the bottom edge 84c is not limited to a horizontal edge 84a and an inclined edge 84b, but may also be a single inclined edge 84d, for example, as shown by the dashed line in Figure 8. In this case, there is no portion corresponding to the horizontal edge 84a, and the inclined edge 84d connects the bottom edge 84c and the outdoor projection 82b with a gentle slope. Alternatively, the water guide edge may be a stepped shape with the inclined edge 84b omitted, for example, as a single horizontal edge 84e, as shown by the dashed line in Figure 8. In other words, the water guide edge may be horizontal, downward sloping, or a combination of these shapes toward the bottom edge 84c.

[0058] The above explanation of the middle rail 28 was based on the example of the point where it abuts against the meeting stile 25 of the inner shoji screen 15, but the basic structure is the same on the door edge stile 26 side. The structure of the middle rail 28 for the outer shoji screen 14 is basically the same as that of the inner shoji screen 15. A structure similar to that of the middle rail 28 can be applied to a horizontal member, such as a transom, which is made up of a metal horizontal member on the exterior side and a resin horizontal member on the interior side, between the left and right vertical members.

[0059] Furthermore, the present invention is also applicable to aluminum-resin composite fixed windows in which vertical ribs or mullions serving as partitions are provided between the upper and lower frames, which are profiles. In other words, the present invention is applicable to building fixtures that have a partition material provided between two profiles, consisting of an exterior metal partition material and an interior resin partition material at the position that separates the two surface materials.

[0060] The present invention is not limited to the embodiments described above, and can be freely modified without departing from the spirit of the invention.

[0061] The joinery according to this embodiment is a joinery comprising a partition material provided between two profile members, consisting of an exterior metal partition material and an interior resin partition material at a position separating two surface materials, wherein the partition material is joined to the profile member in a mortise and tenon manner, and the metal partition material and the resin partition material have first engaging portions that engage with each other at or near both ends in the width direction, and second engaging portions that engage with each other between the two first engaging portions, and the second engaging portions are characterized in that a metal engaging piece, which is part of the metal partition material, is crimped to a resin engaging piece, which is part of the resin partition material, near at least one end of the partition material in the longitudinal direction.

[0062] The second engaging portion is such that a metal engaging piece, which is part of the metal partition material, is crimped to a resin engaging piece, which is part of the resin partition material, thereby effectively suppressing the expansion and contraction of the resin material fixed to the metal material due to temperature changes.

[0063] The metal cross member has an outdoor-side retaining piece and an indoor-side retaining piece that hold the ends of the facing material at the top and bottom, and the metal engaging piece may be located on the outdoor side of the indoor-side visible surface of the indoor-side retaining piece.

[0064] The metal engaging piece and the resin engaging piece may overlap vertically and be crimped together in the vertical direction.

[0065] The claws of the metal engaging piece and the claws of the resin engaging piece may be positioned opposite each other in the depth direction to prevent them from coming loose.

[0066] The aforementioned resin cross member may have hollow sections formed above and below it, separated by a central horizontal partition wall.

[0067] The metal cross member forms a first recess opening to the interior side, the resin cross member forms a second recess opening to the exterior side and facing the first recess, and the metal engaging piece may constitute the lower or upper wall of the first recess.

[0068] The second engaging portion may be located at a position that avoids the vertical center of the horizontal member.

[0069] The upper surface of the horizontal member constitutes the bottom wall of the upward-facing space for holding the lower end of the upper member, and the lower surface of the horizontal member constitutes the top wall of the downward-facing space for holding the upper end of the lower member. The second engaging portion may be provided between the upward-facing space for holding the member and the downward-facing space for holding the member.

[0070] The metal horizontal member is provided with a first screw hole and a second screw hole for fastening to the vertical member with screws, the first screw hole being located on the exterior side of one of the bottom wall and the top wall, and the second screw hole being located on the interior side of the other of the bottom wall and the top wall, the metal engaging piece protruding from one side of the second screw hole where the bottom wall and the top wall face each other in the vertical direction, and the support piece protruding from the other side, and the metal engaging piece and the support piece may be positioned to sandwich the resin engaging piece. [Explanation of Symbols]

[0071] 10 Door frame, 14 Outer shoji screen, 15 Inner shoji screen, 23 Upper frame, 24 Lower frame, 25 Meeting stile (vertical member, shaped member), 26 Door edge frame (vertical member, shaped member), 28 Middle rail (horizontal member, partition member), 29a Surface material (upper surface material), 29b Surface material (lower surface material), 31,33 Metal vertical frame, 31c Inner perimeter side surface, 32,34 Resin vertical frame, 32d Fitting hole, 35,46 Outdoor side retaining piece, 36,47 Indoor side retaining piece, 37 Vertical space for holding surface material, 43 Downward space for holding surface material, 44 Upward space for holding surface material, 47a Base piece, 47aa Indoor side visible surface, 47b 50 Tip piece, 50 Metal middle rail (metal horizontal member, metal partition material), 51 Resin middle rail (resin horizontal member, resin partition material), 52 Indoor bottom wall, 53 Outdoor bottom wall, 54a First screw hole, 54b Second screw hole, 55 First drain hole, 56 Indoor top wall, 57 Outdoor top wall, 58 Vertical partition wall, 60 First recess, 61 Second drain hole, 62 Metal engaging piece, 63 Support piece, 71 Horizontal partition wall, 72 Central wall, 73 Cavity intermediate wall, 74 End wall, 75 Second recess, 76 Tool insertion space, 79 First engaging part, 80 Resin engaging piece, 81 Second engaging part, 82 Sealer, 83 Crimping part, 84 Upper edge, 84a Horizontal edge (water guide edge), 84b Inclined edge (water guide edge), 84c Bottom edge, 84d Inclined edge

Claims

1. In a joinery that includes a partition material that spans between two profiled materials, consisting of an exterior metal partition material and an interior resin partition material at the position separating the two surface materials, The partition material is joined to the profile in a spigot-like manner. The metal partition and the resin partition are, First engaging portions that engage with each other at or near both ends in the width direction, A second engaging portion that engages with each other between the two first engaging portions, It has, The second engagement portion is such that, near at least one of the longitudinal ends of the partition material, a metal engagement piece, which is part of the metal partition material, is crimped to a resin engagement piece, which is part of the resin partition material. A type of joinery characterized by its features.

2. The two aforementioned profiles are left and right vertical members, the partition member is a horizontal member, the metal partition member is a metal horizontal member, and the resin partition member is a resin horizontal member. The joinery according to feature 1.

3. The aforementioned metal cross member has an outdoor-side retaining piece and an indoor-side retaining piece that hold the ends of the surface material at the top and bottom. The aforementioned metal engaging piece is located on the outdoor side of the indoor side surface of the indoor side retaining piece. The joinery according to feature 2.

4. The metal engaging piece and the resin engaging piece are stacked vertically and crimped together in the vertical direction. The joinery according to feature 2.

5. The claws of the metal engaging piece and the claws of the resin engaging piece are positioned opposite each other in the direction of the object, preventing them from coming loose. The joinery according to feature 4.

6. The aforementioned resin cross member has hollow sections formed above and below, separated by a central horizontal partition wall. The joinery according to claim 2 or 5.

7. The aforementioned metal cross member has a first recess that opens to the interior side. The aforementioned resin cross member opens to the outside and forms a second recess opposite to the first recess, The metal engaging piece constitutes the lower or upper wall of the first recess. The joinery according to feature 2.

8. The second engaging portion is located at a position that avoids the vertical center of the horizontal member. The joinery according to feature 2.

9. The upper surface of the horizontal member constitutes the bottom wall of the upward-facing space for holding the upper end of the upper member. The lower surface of the aforementioned horizontal member constitutes the top wall of the downward-facing space for holding the surface material, which holds the upper end of the lower member. The second engagement portion is provided between the upward space for holding the surface material and the downward space for holding the surface material. The joinery according to feature 2.

10. The metal cross member is provided with a first screw hole and a second screw hole for fastening it to the vertical member with screws. The first screw hole is provided in the bottom wall and the top wall at a position closer to the outside, The second screw hole is provided in the bottom wall and the other of the top wall, at a position closer to the interior. In the vertical direction of the second screw hole, the metal engaging piece protrudes from one side where the bottom wall and the top wall face each other, and the support piece protrudes from the other side. The metal engaging piece and the support piece are positioned to sandwich the resin engaging piece. The joinery according to feature 9.

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