Mullion and sash

Abstract

To improve heat insulating property.SOLUTION: A core material 2 installed along the vertical direction, a pair of cover members 3 attached to the outdoor side and the indoor side of the core material, and two brackets 4 for fixing the upper end part and the lower end part of the core material to the attachment objects are provided, and the pair of cover members have an open cross-sectional shape having one plane part 31 and a pair of facing surface parts 3 erected by bending from both ends of the plane part, and the abutted tip parts of the facing surface parts of the pair of cover members attached to the core material are separated from each other.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a mullion and a sash. [Background technology]

[0002] Conventionally, in sashes, it has been common practice to ensure heat insulation by covering the surface of an aluminum alloy profile with a resin cover member (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-91917 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above structure does not provide sufficient heat insulation, and there is room for improvement.

[0005] An object of the present invention is to improve heat insulation. [Means for solving the problem]

[0006] According to one aspect of the present invention, in order to solve the above problem, In the mullion, A core material installed along the vertical direction; A pair of cover members attached to the outdoor and indoor sides of the core material; two brackets for fixing the upper end and the lower end of the core material to an attachment object, The pair of cover members have an open cross-sectional shape having one flat surface portion and a pair of opposing surface portions bent and raised from both ends of the flat surface portion, The abutted tip ends of the opposing surfaces of the pair of cover members attached to the core material are spaced apart from each other.

[0007] According to one aspect of the present invention, in order to solve the above problem, In sashes, The above-mentioned post and a frame body attached to the mullion, The pair of cover members are each characterized in that they are fixed to the core material by attaching the frame body to the uprights. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a mullion and a sash that improve thermal insulation. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a schematic front view of a sash having a mullion according to an embodiment of the invention, viewed from the inside of the room. [Figure 2] This is a side view of the mullion from the front direction. [Figure 3] A horizontal cross section of a mullion. [Figure 4] This is a perspective view showing the assembly work of the mullions. [Figure 5] FIG. 5 is a perspective view showing the assembly work of the mullions following FIG. 4. [Figure 6] FIG. 6 is a perspective view showing the assembly work of the mullions following FIG. 5. [Figure 7] 1 is a cross-sectional view showing a cross section perpendicular to the up-down direction of the temporary fixing structure. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the scope of the present invention is not limited to the embodiments disclosed below. Because the drawings are provided for illustrative purposes only, the scope of the present invention is not limited to the examples shown in the drawings.

[0011] [sash] 1 illustrates a sash 100 equipped with a mullion 1 according to an embodiment of the present invention. FIG. 1 is a schematic front view of the sash 100 as viewed from the room side. The sash 100 is a sash used as the inner window of a double-glazed window consisting of an outer window and an inner window in an opening in the frame of a building to which it is attached. Note that in the opening in the frame where the inner window sash 100 is installed, an outer window sash (not shown) is installed on the outdoor side of the sash 100.

[0012] FIG. 1 shows the horizontal direction S and the vertical direction V, and FIG. 2, which will be described later, shows an arrow indicating the projection direction T. The horizontal sight direction S and the vertical up-down direction V are collectively called the sight direction, and the sight direction is the direction parallel to the interior wall in which the opening is formed. Of the sight directions, the horizontal direction is called the horizontal sight direction S, and the vertical direction is called the vertical up-down direction V. The sight direction T is the direction perpendicular to the sight direction, i.e., the thickness direction of the interior wall. The vertical up-down direction V is perpendicular to the horizontal sight direction S and the sight direction T. The look direction is also called the in-plane direction, and the look direction T is also called the out-of-plane direction.

[0013] The sash 100 has a first sash 110, a second sash 120, and a mullion 1 located therebetween. The first sash 110 has a rectangular frame body 111 and sliding shoji screens 112 and 113 provided inside the frame body 111. The second sash 120 has a rectangular frame body 121 and sliding shoji screens 122 and 123 provided inside the frame body 121.

[0014] The frame bodies 111, 121 are each assembled into a rectangular frame shape with an upper frame, a lower frame and a left vertical frame extending in the vertical direction, and support the sliding shoji screens 112, 113, 122, 123 inside so that they can slide along the horizontal direction S. Each of the sliding shoji screens 112, 113, 122, and 123 has a bottom frame, a top frame, and a left and right frame extending in the vertical direction assembled into a frame, with glass held inside.

[0015] 1, the first sash 110 and the second sash 120 are both illustrated as sliding window sashes, but they are not limited to this and may be sashes of sliding windows, fixed windows, etc. Furthermore, the sashes 110 and 120 may be sashes of different types.

[0016] [Mulliner] Figure 2 is a side view of the mullion 1 as seen from the horizontal direction S, Figure 3 is a horizontal cross-sectional view of the mullion 1, and Figures 4 to 6 are perspective views showing the assembly of the mullion 1 in sequence. In Figure 2, the left side of the paper indicates the outside of the room, and the right side of the paper indicates the inside of the room.

[0017] In explaining the mullion 1, the up, down, front, back, left and right directions of the mullion 1 are defined below. As shown in Figure 2, one side of the vertical direction of the mullion 1 is defined as the top (upper side of the paper) and the other side is defined as the bottom (lower side of the paper). Furthermore, as shown in Figure 3, the direction perpendicular to the up-down direction and in which the first sash 110 is attached to the upright 1 is defined as right (right side of the paper), and the direction in which the second sash 120 is attached is defined as left (left side of the paper). As shown in FIG. 3, one of the directions perpendicular to the up-down direction and the left-right direction is defined as the front (upper side of the paper), and the other is defined as the rear (lower side of the paper). When installed in an opening in the building's structure, the up-down direction of the upright 1 is parallel to the vertical up-down direction V mentioned above, the left-right direction of the upright 1 is parallel to the horizontal sight direction S mentioned above, and the front-to-back direction of the upright 1 is parallel to the sight direction T mentioned above.

[0018] The post 1 comprises a core material 2 having a rectangular cross section and made of extruded molding, two resin cover members 3 that cover the entire front and rear surfaces of the core material 2 and parts of the left and right side surfaces, and two brackets 4 that fix the upper and lower ends of the core material 2 to the mounting surfaces of the building's frame as the object to be mounted.

[0019] [Core material] The core material 2 is made of an aluminum alloy extrusion with a hollow structure and a substantially rectangular cross section perpendicular to the vertical direction. As mentioned above, the core material 2 is an extrusion molded extrusion, and therefore both ends in the vertical direction are open. Furthermore, unless otherwise specified as being made of separate members, each part of the core material 2 described below is assumed to be integrally formed. Furthermore, since the core material 2 is an extrusion molded shape, the cross-sectional shape perpendicular to the up-down direction is constant over the entire length. The core material 2 is not limited to an aluminum alloy and may be made of other metals.

[0020] As shown in FIG. 3, the core 2 has a front surface 21 and a rear surface 22 made of flat plates parallel to the vertical and horizontal directions, and a right side surface 23 and a left side surface 24 made of flat plates parallel to the vertical and horizontal directions. In the core 2, the front surface 21 is located at the front end, the rear surface 22 is located at the rear end, the right side surface 23 is located at the right end, and the left side surface 24 is located at the left end.

[0021] In the sash 100, a first sash 110 is arranged on the right side of the mullion 1, and a second sash 120 is arranged on the left side. For this reason, the left vertical frame 111a of the frame body 111 of the first sash 110 is attached to the right side surface 23 of the core material 2 via the front and rear cover members 3 by means of screws or the like. Furthermore, the left vertical frame 121a of the frame body 121 of the second sash 120 is attached to the left side surface 24 of the core material 2 via the front and rear cover members 3 by means of screws or the like.

[0022] Furthermore, a recessed portion 221 recessed forward is formed on the outer surface of the rear surface 22 of the core 2. This recessed portion 221 is formed over the entire length of the rear surface 22 in the up-down direction. Furthermore, the recessed portion 221 has an inner bottom surface 222 that is a flat surface that is parallel to the vertical and horizontal directions. The front faces of the arm portions 42 (described later) of the upper and lower brackets 4 abut against the upper and lower ends of the inner bottom surface 222 of this recessed portion 221 from behind, and are connected by screws or the like. The width of the recessed portion 221 in the left-right direction is slightly wider than the width of the arm portions 42 in the left-right direction. In addition, the depth of the recessed portion 221 in the front-to-rear direction is the same as or slightly deeper than the thickness of the arm portions 42 in the front-to-rear direction, so that the arm portions 42 do not protrude rearward from the rear surface 22 of the core material 2.

[0023] Since the core material 2 is an extruded shaped member, the recessed portions 221 are formed uniformly over the entire vertical length of the core material 2. However, since the recessed portions 221 only need to allow the arms 42 of the bracket 4 to be attached to the upper and lower ends of the rear surface 22, the recessed portions 221 may be formed only at the upper and lower ends of the rear surface 22 of the core material 2 by another processing method.

[0024] [bracket] The upper and lower brackets 4 are made of the same material and are symmetrical about a horizontal plane when placed one above the other. Therefore, the following explanation will focus on the lower bracket 4. The upper bracket 4 can be explained by simply restating the explanations of the directions of the lower bracket 4 as directions symmetrical about a horizontal plane, so an explanation of the upper bracket 4 will be omitted.

[0025] 2 to 6, the bracket 4 is made by forming cuts as necessary in a single flat metal plate made of steel, stainless steel, or the like, and then partially bending the plate, etc. Therefore, unless otherwise specified, the components of the bracket 4 described below are assumed to be integrally formed. The bracket 4 may be made of other metals as long as sufficient strength can be ensured.

[0026] The bracket 4 has a base portion 41 that is fixed to the mounting surface of the object to be mounted on the upright 1, and an arm portion 42 that is raised upward at a right angle from the rear end of the base portion 41 by a fold that runs in the left-right direction.

[0027] The base plate 41 is a rectangular flat plate parallel to the front-rear and left-right directions. As shown in Fig. 3, the width of the base plate 41 in the left-right direction is equal to or slightly smaller than the width of the core material 2 minus the total depth of the left and right recessed grooves 62 (described later). The width of the substrate portion 41 in the front-to-rear direction may be at most equal to or slightly narrower than the width of the core material 2 in the front-to-rear direction, but this embodiment illustrates a case in which the width of the substrate portion 41 in the front-to-rear direction is sufficiently narrower than the width of the core material 2 in the front-to-rear direction. However, even in this case, it is preferable that the width of the substrate portion 41 in the front-to-rear direction be wider than half the width of the core material 2 in the front-to-rear direction. The dimensions and shape of the substrate portion 41 are set so that it fits inside the inner edge portions of the two cover members 3, 3 attached to the core material 2, at least when viewed from the top and bottom direction. The base plate portion 41 has a plurality of (for example, four) insertion holes 411 formed therein for passing fastening members for fastening and fixing the bracket 4 to the mounting surface of the mounting object. Screws 45 are used as the fastening members.

[0028] The arm portion 42 stands upright from the rear end of the base portion 41 . The arm portion 42 has a flat plate shape that is parallel in the vertical and horizontal directions. When the core material 2 and the bracket 4 are connected, the front surface of the arm portion 42 abuts against or closely faces the inner bottom surface 222 of the recessed portion 221 of the rear surface 22. The arm portion 42 is also formed with a plurality of (for example, two) insertion holes 421 for passing fastening members (drill screws 44, described later) for fastening the bracket 4 to the inner bottom surface 222 of the recessed portion 221. It is preferable to form a counterbore hole at the rear end of the insertion hole 421 for accommodating the head of the fastening member. However, it is not essential to provide a counterbore hole. The type and shape of the screw of the fastening member may be selected as appropriate.

[0029] Screws or bolts can be used as fastening members when connecting the core material 2 and the bracket 4. In particular, using drill screws 44 as fastening members is convenient during assembly. It is also possible to use ordinary screws. In this case, it is necessary to pre-drill screw holes at the mounting positions of the core material 2. Even if these screw holes are precisely drilled in the proper positions corresponding to the design values, there is a possibility that the insertion holes 421 and the pre-drilled screw holes may become misaligned during the assembly process of the mullions 1, making it necessary to drill the screw holes again. Furthermore, if the screw holes are formed immediately before connecting the core material 2 and the bracket 4, it is possible to prevent the above-mentioned misalignment from occurring, but this requires machining of the screw holes during assembly, which increases the workload. When the drill screw 44 is used, it is possible to reduce the misalignment of the screw hole and the workload.

[0030] [Cover material] Each cover member 3 is made of an extruded resin with higher insulating properties than the core material 2, and by covering the front and rear sides of the core material 2, it achieves the improved insulating properties required for an interior window. The two cover members 3 are made of the same material and are both formed by extrusion molding, so that the cross-sectional shape perpendicular to the up-down direction is constant over the entire length. Furthermore, each part of the cover member 3 described below is assumed to be formed integrally.

[0031] As shown in Figure 3, the front cover member 3 covers the entire outer surface of the front surface 21 of the core material 2, as well as a front portion including the front end of the right side surface 23 and a front portion including the front end of the left side surface 24. The rear cover member 3 covers the entire outer surface of the rear surface 22 of the core material 2, as well as a rear portion including the rear end of the right side surface 23 and a rear portion including the rear end of the left side surface 24. The rear cover member 3 covers the entire outer surface of the rear surface 22, including the entire recessed portion 221.

[0032] The two cover members 3 have a flat portion 31 that covers the entire front surface 21 or rear surface 22 of the core material 2, and a pair of opposing flat surface portions 32 that are bent and raised vertically from each of the left and right ends of the flat portion 31. The pair of opposing surface portions 32 have the same length in the front-to-rear direction, and each length is less than half the front-to-rear width of the core material 2. Therefore, the rear end portions of the opposing surface portions 32 on both the left and right sides of the front cover member 3 and the front end portions of the opposing surface portions 32 on both the left and right sides of the rear cover member 3 are spaced apart without contacting each other, forming uncovered areas E on both the left and right sides. The uncovered areas E are formed with a constant width over the entire length in the up-down direction.

[0033] As shown in Figure 3, the right-side opposing surface portion 32 of each of the front and rear cover members 3 is penetrated at multiple points in the vertical direction by drill screws 114, which serve as fastening members when attaching the left-side vertical frame 111a of the frame body 111 of the first sash 110 to the upright 1. Similarly, the opposing surface portion 32 on the left side of each of the front and rear cover members 3 is penetrated at multiple points in the vertical direction by drill screws 124, which serve as fastening members when attaching the right vertical frame 121a of the frame body 121 of the second sash 120 to the upright 1. Each cover member 3 is fixed to the core member 2 by being sandwiched between the core member 2 and the vertical frames 111a, 121a by passing through and fastening drill screws 114, 124.

[0034] It is preferable that the facing surface portion 32 on the right side of the cover member 3 has a short length in the front-to-rear direction and a wide width in the front-to-rear direction of the non-covered area E, but it is necessary to have at least a length in the front-to-rear direction that allows the drill screws 114, 124 to penetrate and fix the facing surface portion 32 to the core material 2. For example, if M3 or M4 size drill screws 114, 124 are used, it is preferable that the length in the front-to-rear direction of the facing surface portion 32 be at least about 10 to 15 mm.

[0035] The two cover members 3 have an open cross-sectional shape in which the cross-sectional shape perpendicular to the up-down direction is roughly U-shaped, and can be attached to the core material 2 so as to cover it from the front and rear, respectively. The cover member 3 has temporary fixing structures 6 between the left and right opposing surface portions 32 and the core material 2 to prevent the cover member 3 from falling off from the core material 2.

[0036] FIG. 7 is a cross-sectional view showing a cross section of the temporary fixing structure 6 perpendicular to the Z direction. The temporary fixing structure 6 is made of a concave-convex structure provided between the opposing surface portion 32 of the cover member 3 and the right side surface 23 or the left side surface 24 of the core material 2. The temporary fixing structure 6 has a convex rib 61 formed along the entire vertical length on the inner surface of each opposing surface portion 32, and a concave groove 62 formed along the entire vertical length on the outer surface of the right side surface 23 or left side surface 24 of the core material 2. It should be noted that the temporary fixing structure 6 may be formed by forming a recessed groove on the cover member 3 side and forming a protruding ridge on the core material 2 side.

[0037] The cross-sectional shape of the ridge 61 is substantially triangular, and the cross-sectional shape of the recessed groove 62 is rectangular. The ridges 61 are formed by extrusion molding of resin integrally with the cover member 3. When extruding resin, if the ridge size is small, the processing precision is unstable and slight bending may occur in some parts. Even in such a case, by making the cross section of the recessed groove 62 rectangular, slight bending of the ridge 61 can be tolerated and the mutual fitting state can be maintained.

[0038] 7, the protrusion 61, which has a substantially triangular cross section, has a slope that forms an acute angle with the inner surface of the cover member 3 on the downstream side of the mounting direction F in the direction F in which the cover member 3 is mounted to the core material 2, and has an upright surface that forms a right angle or obtuse angle with the inner surface of the cover member 3 on the downstream side of the mounting direction F. Therefore, when the cover member 3 is mounted to the core material 2, the protrusion 61 does not interfere, and if the cover member 3 moves in a direction that would cause it to fall off the core material 2 (the opposite direction to the mounting direction F), the movement can be restricted.

[0039] [Assembling the mullion] The procedure for assembling the mullions 1 will be described with reference to FIGS. First, the upper and lower brackets 4 are fixed to the upper and lower mounting surfaces of the opening in the building frame. As shown in Fig. 4, the base plate portion 41 of the upper bracket 4 is brought into contact with the mounting surface on the lower side of the opening in the body and fastened and fixed with screws 45. At this time, the arm portion 42 faces upward, fixing the base plate portion 41 in a state where it is positioned at the rear end of the base plate portion 41. Similarly, the base plate portion 41 of the lower bracket 4 is brought into contact with the upper mounting surface of the opening in the body and fastened and fixed with screws 45. At this time, the arm portion 42 faces downward, fixing the base plate portion 41 in a state where it is positioned at the rear end of the base plate portion 41.

[0040] Additionally, the front cover member 3 is attached to the core material 2 from the front side. The cover member 3 is attached with the inner surface of the flat portion 31 facing the front surface 21 of the core material 2 and with the left and right opposing surface portions 32 sliding against the right side surface 23 and left side surface 24, respectively. At this time, the cover member 3 is moved rearward until the convex strips 61 of the left and right temporary fastening structures 6 fit into the concave grooves 62.

[0041] Then, the front surfaces of the arms 42 of the upper and lower brackets 4 are brought into contact with or closely opposed to the inner bottom surface 222 of the recessed portion 221 of the rear surface 22 of the core material 2 . Furthermore, if the core material 2 is formed to a length that corresponds to the design value of the vertical width of the opening in the frame, there is a risk that it will not fit into the opening due to processing errors, measurement errors, changes in dimensions due to temperature and humidity, etc., while because the core material 2 is made of a metal material, it is difficult to adjust the length at the construction site. Therefore, the vertical length of the core material 2 is formed to be slightly shorter than the design value of the vertical width of the opening in the frame minus twice the thickness of the base portion 41 of the bracket 4, and a gap N shown in Figure 2 is generated at the upper end. As a result, even if an error occurs, it is tolerated by the gap. On the other hand, the cover member 3 is attached with a length equal to the vertical width of the opening in the body. Because the cover member 3 is made of resin, it can be prepared with a sufficient length, and the length can be adjusted by cutting off the end in the Z direction during attachment. This prevents the core material 2 and the upper and lower brackets 4 from being exposed to the outside.

[0042] When connecting the bracket 4 and the core material 2, drill screws 44 are inserted into the two insertion holes 421 of the arm portion 42 and fastened while penetrating the inner bottom surface 222 of the recessed portion 221 of the rear surface 22. In addition, two marking grooves 223 are formed along the entire length in the vertical direction on the inner bottom surface 222 of the recessed portion 221 of the rear surface 22, so that the tips of each drill screw 44 can be screwed into the appropriate position.

[0043] Next, as shown in FIGS. 5 and 6, the rear cover member 3 is attached to the core material 2. The cover member 3 is attached to the core material 2 from the rear side. The cover member 3 is attached with the inner surface of the flat portion 31 facing the rear surface 22 of the core material 2 and with the left and right opposing surface portions 32 sliding against the right side surface 23 and left side surface 24, respectively. At this time, the cover member 3 is moved forward until the convex ridges 61 of the temporary fastening structure 6 fit into the concave grooves 62. As mentioned above, the tip ends of the left and right opposing surface portions 32 of the front and rear cover members 3 are set to a length that does not allow them to reach each other, so that an uncovered area E is formed over the entire length in the vertical direction between the tip ends of the left and right opposing surface portions 32 of the front and rear cover members 3.

[0044] After the mullions 1 are installed, the first sash 110 and the second sash 120 are attached. On both the left and right sides of the mullion 1, the frame bodies 111, 121 of the sashes 110, 120 are installed while being assembled. At this time, the left vertical frame 111a of the frame body 111 is fastened to the right side surface 23 of the core material 2 by a drill screw 114 while penetrating the right opposing surface portions 32 of the front and rear cover members 3. Similarly, the right vertical frame 121a of the frame body 121 is fastened to the left side surface 24 of the core material 2 by a drill screw 124 while penetrating the left opposing surface portions 32 of the front and rear cover members 3. As a result, each cover member 3 is sandwiched between the core material 2 and the vertical frames 111a, 121a by the drill screws 114, 124 passing through and fastening them, and is fixed to the core material 2. As a result, the left and right uncovered areas E of the front and rear cover members 3 are covered by the vertical frames 111a, 121a. Therefore, when the surface of each cover member 3 has a decorative feature, the mullion 1 can maintain a high level of decorativeness without losing its decorativeness.

[0045] [Technical Effects of the Embodiments of the Invention] In the above-mentioned mullions 1, the butted tip ends of the opposing surface portions 32 of the pair of front and rear cover members 3 attached to the core material 2 are spaced apart to form an uncovered area E. As a result, the front and rear cover members 3 do not come into direct contact with each other, and the temperature transmission path from the outside to the inside of the room by the front and rear cover members 3 is cut off, making it possible to provide a mullion 1 with excellent thermal insulation. This makes it possible to suitably use the mullion 1 as a component of the sash 100 of the inner window of a double-glazed window, which has high thermal insulation requirements. It is also possible to improve the thermal insulation of the sash 100 equipped with the mullion 1. Furthermore, since the resin cover member 3 covers a large area of ​​the surface of the core material 2, it is possible to further improve the heat insulating properties of the sash. Furthermore, since the resin cover member 3 covers the surface of the core material 2 that is exposed to the outside, it becomes easy to give the mullion 1 a design feature, contributing to improving the overall design of the sash 100.

[0046] In addition, the pair of cover members 3 are both fixed to the core material 2 by attaching the frame bodies 111, 121 of the sashes 110, 120 to the mullions 1. Therefore, in the installation work of the sash 100, the work of fixing only the cover member 3 to the core material 2 is not required, and workability can be improved. In particular, the pair of opposing surface portions 32 of each of the pair of cover members 3 extend at least long enough to allow the drill screws 114, 124 used to attach the frame bodies 111, 121 to be inserted therethrough, so that the cover members 3 can be suitably fixed in place when the frame bodies 111, 121 are fastened together with the drill screws 114, 124.

[0047] Furthermore, the left and right uncovered areas E that occur between the front and rear cover members 3 are covered by the vertical frames 111a, 121a, so if the mullion 1 has a decorative feature on the surface of each cover member 3, the decorative feature is not impaired and high design quality can be maintained.

[0048] In addition, a concave portion 221 is formed on the rear surface 22 of the core material 2 of the upright 1, and the arm portion 42 of each bracket 4 can be fastened and fixed to the inner bottom surface 222 of the concave portion 221, so that the arm portion 42 of each bracket 4 does not protrude outside the core material 2, and the entire upright 1 can be maintained in a rectangular prism shape. Therefore, the cover member 3 can be easily attached, the unevenness of the surface of the mullion 1 can be reduced, and the mullion 1 can be easily given a design feature, which contributes to improving the overall design of the sash 100.

[0049] In addition, the upright 1 has two cover members 3, which have a temporary fastening structure 6 to prevent the cover members 3 from falling off the core material 2. Therefore, when installing the upright 1, the temporary fastening state can be maintained until the cover members 3 are fixed, and there is no need to hold down the cover members 3, which greatly improves workability.

[0050] The temporary fixing structure 6 of the cover member 3 has a ridge 61 formed on the cover member 3 along the core material 2, and a recessed groove 62 formed on the core material 2 along the core material 2, so that the ridge 61 can be easily fitted into the recessed groove 62 by utilizing the flexibility of the cover member 3. This makes it possible to further improve the workability in the installation work of the mullions 1.

[0051] Furthermore, in the temporary fixing structure 6, the ridges 61 have a triangular cross section and the recessed grooves 62 have a rectangular cross section, so even if the ridges 61 are bent due to the processing precision of the resin, this can be tolerated and they can be fitted into the recessed grooves 62. Therefore, the temporary fixing state of the cover member 3 can be maintained in an appropriate manner.

[0052] Furthermore, since the rear cover member 3 covers the concave portion 221 of the core material 2, when installing the upright 1, the front cover member 3 can be attached to the core material 2 before connecting the core material 2 to the bracket 4, making it possible to efficiently install the upright 1.

[0053] Furthermore, since the two cover members 3 are made of the same material, it is possible to reduce the manufacturing cost of the mullion 1 by using common parts.

[0054] Furthermore, since the two cover members 3 have an open cross-sectional shape with a flat portion 31 and integral opposing surface portions 32 raised from both ends thereof, they can be easily attached to the core material 2 from the open side of the cover member 3, which further improves workability when installing the uprights 1. Furthermore, the cover member 3 can be easily attached to the core material 2 whose upper and lower ends are already connected by the brackets 4.

[0055] [others] The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments. For example, in the embodiments, a component integrally formed from a single member may be replaced with a component divided into multiple members that are connected or fixed to each other. Furthermore, a component formed by connecting multiple members may be replaced with a component integrally formed from a single member. In addition, the details shown in the embodiments may be modified as appropriate without departing from the spirit of the invention.

[0056] For example, although the core material 2 has been exemplified as having a hollow structure, the present invention is not limited to this and may have a solid structure. Furthermore, the core material 2 may be made of a metal other than an aluminum alloy, or may be made of solid wood.

[0057] Furthermore, although each bracket 4 is connected to the rear surface 22 of the core material 2, it may also be connected to the front surface 21. In this case, it is preferable that the recessed portion 221 is provided on the front surface 21.

[0058] Furthermore, although the mullions 1 have been illustrated as having both ends of the core material 2 fixed to the object to be attached by the brackets 4, the configuration is not limited to this. For example, either end of the core material 2 may be fixed to the object to be attached by a member other than the bracket 4. In this case, the recessed portion 221 may be formed only at the end of the core material 2 that is fixed to the object by the bracket 4. Alternatively, both ends of the core material 2 may be fixed to the object to which it is attached using a single bracket having a length substantially equal to that of the core material 2. [Explanation of symbols]

[0059] 1. Post 2 Core material 21 Front 22 Rear 221 Concave part 222 Inner bottom surface 223 Marking groove 23 Right side 24 Left side 3 Cover member 31 Plane part 32 Opposing surface part 4 Bracket 41 Circuit board 411 Insertion hole 42 Arm 421 Insertion hole 44 Drill screws (fastening components) 45 Screws (fastening components) 6 Temporary fastening structure 61 Convex strip 62 Groove 100 sashes 110 First Sash 111 Frame body 111a vertical frame 112,113 Shoji screen 114 Drill screws (fastening components) 120 Second Sash 120 Sash 121 Frame body 121a Vertical frame 122,123 Shoji screen 124 Drill screws (fastening components) E Uncovered area F Mounting direction N Gap S Find horizontal direction T Prospective direction V vertical direction

Claims

1. A core material installed along the vertical direction; A pair of cover members attached to the outdoor and indoor sides of the core material; a bracket for fixing at least an upper end or a lower end of the core material to an object to be attached; The pair of cover members have an open cross-sectional shape having one flat surface portion and a pair of opposing surface portions bent and raised from both ends of the flat surface portion, A mullion characterized in that the butted tip ends of the opposing surface portions of each of the pair of cover members attached to the core material are spaced apart.

2. 2. The post according to claim 1, wherein each of the pair of cover members is fixed to the core material by attaching a vertical frame of a sash to the post.

3. A support post as described in claim 2, characterized in that the pair of opposing surface portions of each of the pair of cover members extend at least long enough to be penetrated by fastening members used to attach the vertical frame.

4. The bracket has a base portion facing the attachment object and an arm portion standing upright from the base portion, 2. The support post according to claim 1, wherein the core material is formed with a recessed portion against which the arm portion of the bracket abuts.

5. 2. The support structure according to claim 1, further comprising a temporary fastening structure between each of the cover members and the core material to prevent the cover members from falling off the core material.

6. The support structure described in claim 5, characterized in that the temporary fixing structure includes a convex ridge formed on one of the cover member and the core material along the core material, and a concave groove formed on the other of the cover member and the core material along the core material.

7. The groove has a rectangular cross section and is formed in the core material, The mullion according to claim 6, wherein the ridge has a triangular cross section and is formed on the cover member.

8. The support structure according to claim 4 , wherein one of the cover members covers the recessed portion of the core material.

9. 2. The support structure according to claim 1, wherein the two cover members are made of the same material.

10. a mullion according to claim 1; a vertical frame attached to the mullion, A sash characterized in that both of the pair of cover members are fixed to the core material by attaching the vertical frames to the uprights.

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