Door and window frames

Abstract

To provide a fitting frame to which an intermediate frame such as a mullion or a transom can be easily joined to an outer peripheral frame such as a head, a sill and a pair of jambs.SOLUTION: A fitting frame comprises an outer peripheral frame 3 provided along an opening 12 of an outer wall 11 (framework), a mullion 6 (intermediate frame) provided between a head and a sill 32 (inside of outer peripheral frame 3) and joined to the head and the sill 32 in a posture in which the length direction is orthogonal to the head and the sill 32 (outer peripheral frame 3). An upper end surface and a lower end surface 6a (end surfaces in the length direction) of the mullion 6 are horizontal planes (planes orthogonal to the length direction).SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present disclosure relates to a building fitting frame.

Background Art

[0002] As a building fitting frame of a resin-made building fitting (resin sash) provided at an opening such as an outer wall of a building, a building fitting frame is known in which an intermediate frame such as a stile or a flush panel is provided inside an upper frame, a lower frame, and a pair of vertical frames provided along an edge of the opening (see, for example, Patent Document 1). The stile is disposed between the upper frame and the lower frame, and both ends in the length direction are joined to the upper frame and the lower frame. A V-shaped notch is formed in a portion where the stile of the upper frame and the lower frame is joined. The ends in the length direction of the stile are formed in a V shape that matches the notches of the upper frame and the lower frame, and are welded to the upper frame and the lower frame in a state of being fitted into the notches and in contact therewith. The flush panel is disposed between the pair of vertical frames, and both ends in the length direction are joined to the pair of vertical frames. The flush panel is also welded to the pair of vertical frames in the same manner as the stile.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, when an angle for fixing to a frame is provided so as to project from the upper frame, the lower frame, and the pair of vertical frames to the indoor side, the angle is also cut out by forming a V-shaped notch. Therefore, there is a problem that the production of the building fitting frame becomes complicated because the angle of the cut-out portion must be installed after joining the intermediate frame.

[0005] An object of the present disclosure is to provide a building fitting frame capable of easily joining an intermediate frame such as a stile or a flush panel to an outer peripheral frame such as an upper frame, a lower frame, and a pair of vertical frames. [Means for solving the problem]

[0006] To achieve the above objective, the joinery frame according to this disclosure comprises an outer frame provided along an opening in the building structure, and an intermediate frame provided inside the outer frame and joined to the outer frame in a position where its longitudinal direction is perpendicular to the outer frame, wherein the end face of the intermediate frame in the longitudinal direction is a surface perpendicular to the longitudinal direction. [Brief explanation of the drawing]

[0007] [Figure 1] This is a front view of the door / window of the first embodiment, as seen from the interior side. [Figure 2] This is a front view of the door / window from the outside. [Figure 3] This is a cross-sectional view along line AA in Figure 1. [Figure 4] This is a cross-sectional view along line BB in Figure 1. [Figure 5] Figure 1 is a cross-sectional view along the CC line. [Figure 6] Figure 2 is a cross-sectional view along the DD line. [Figure 7] This is a view of the joint between the mullion and the bottom frame, seen from the outside. [Figure 8] This is a disassembled view of the lower frame and mullions in Figure 6. [Figure 9] This is a disassembled view of the lower frame and mullions in Figure 7. [Figure 10] Figure 6 is a cross-sectional view along the EE line. [Figure 11] This is a view from the width direction of the joint between the mullion and the lower frame in the second embodiment. [Figure 12] This is a view of the joint between the mullion and the bottom frame, seen from the outside. [Figure 13] This is a disassembled view of the lower frame and mullions from Figure 11. [Figure 14] This is a disassembled view of the lower frame and mullions in Figure 12. [Figure 15] Figure 11 is a cross-sectional view along the FF line. [Modes for carrying out the invention]

[0008] (First Embodiment) As shown in Figures 1 and 2, the door frame 1 according to the first embodiment is the frame for a door 2 installed in an opening 12 of the exterior wall 11 (structure) that separates the interior and exterior. The door 2 is a series of windows in which a vertical sliding window and a fixed window are adjacent via a mullion 6. The door frame 1 is fixed to the exterior surface 111 of the exterior wall 11. Of the exterior wall 11, the structural part that supports the load of the building is called the structure, and the finishing material installed on the exterior side of the structure is called the exterior wall material 112. The exterior surface of the structure is called the exterior surface 111. Inside the door frame 1, a sash 211 for a vertical sliding window is installed on one side of the mullion 6, and a sash 212 for a fixed window is installed on the other side of the mullion 6. The shoji screens 211 and 212 have a frame 22 provided around the periphery and a surface material 23 such as a glass plate provided inside the frame 22. The joinery 2 has a joinery frame 1 and a frame 22, at least the joinery frame 1 being molded from a resin material.

[0009] In the following, the horizontal direction connecting the interior 13 and the exterior 14 (see Figures 3-5, the horizontal direction perpendicular to the exterior wall 11) is referred to as the interior-exterior direction (direction of arrow Y in the figures), and the horizontal direction perpendicular to the interior-exterior direction (horizontal direction along the exterior wall 11) is referred to as the width direction (direction of arrow X in the figures). In the figures, the vertical direction is indicated by arrow Z. For long members, the direction in which the member extends is sometimes referred to as the "length direction." The surface parallel to the facing material 23 of the shoji screens 211 and 212 is sometimes referred to as the "visible surface." When the opening 12 is closed, the facing material 23 of the shoji screens 211 and 212 and the surfaces of the exterior wall 11 on the interior 13 side and the exterior 14 side are parallel. The surface perpendicular to the visible surface is sometimes referred to as the "depth surface." The depth surface is the surface facing the width direction.

[0010] As shown in FIGS. 1 to 5, the fitting frame 1 has an outer peripheral frame 3 provided along the edge of the opening 12, and a vertical post 6 (intermediate frame) provided inside the outer peripheral frame 3. The outer peripheral frame 3 has an upper frame 31, a lower frame 32, and a pair of vertical frames 33, 34. The vertical post 6 is provided between the upper frame 31 and the lower frame 32. FIGS. 3 and 4 show the upper frame 31 and the lower frame 32, and FIG. 5 shows the pair of vertical frames 33, 34. The upper frame 31, the lower frame 32, the pair of vertical frames 33, 34, and the vertical post 6 are each formed of a long-shaped member and have substantially the same cross-sectional shape throughout the length direction.

[0011] The upper frame 31 is provided along the upper edge portion 121 of the opening 12 in a posture extending in the width direction. The lower frame 32 is provided along the lower edge portion 122 of the opening 12 in a posture extending in the width direction. One vertical frame 33 is provided along the edge portion 123 on one side in the width direction of the opening 12 in a posture extending in the vertical direction. The other vertical frame 34 is provided along the edge portion 124 on the other side in the width direction of the opening 12 in a posture extending in the vertical direction. The outer peripheral frame 3 is formed in a rectangular shape.

[0012] The upper frame 31, the lower frame 32, and the pair of vertical frames 33, 34 have the same cross-sectional shape orthogonal to the length direction. The upper frame 31 and the lower frame 32 are arranged in a vertically symmetric orientation, and one vertical frame 33 and the other vertical frame 34 are arranged in a symmetric orientation with respect to the width direction. The upper frame 31, the lower frame 32, and the pair of vertical frames 33, 34 have both end faces in the length direction cut obliquely at 45° with respect to the length direction. The upper frame 31 has both end faces in the length direction abutted against and welded to the upper end faces of the pair of vertical frames 33, 34. The lower frame 32 has both end faces in the length direction abutted against and welded to the lower end faces of the pair of vertical frames 33, 34.

[0013] As shown in FIG. 1, the vertical post 6 is arranged between the upper frame 31 and the lower frame 32 in a posture extending in the vertical direction. The lower end face 6a of the vertical post 6 is joined from above to the middle portion in the width direction of the lower frame 32. The upper end face 6b of the vertical post 6 is joined from below to the middle portion in the width direction of the upper frame 31.

[0014] As shown in FIGS. 6 to 9, the lower frame 32 has a body fixing portion 41, a shoji facing portion 42, an outdoor side portion 43, an indoor side portion 44, a fixing piece 45, an angle 46, a first rib 47, and a second rib 48. As shown in FIGS. 3 to 5, for the upper frame 31 and the pair of vertical frames 33, 34, the portions corresponding to the body fixing portion 41, the shoji facing portion 42, the outdoor side portion 43, the indoor side portion 44, the fixing piece 45, the angle 46, the first rib 47, and the second rib 48 of the lower frame 32 are denoted by the same reference numerals as those of the lower frame 32.

[0015] As shown in FIGS. 6 and 8, the body fixing portion 41 is formed in a flat plate shape and is disposed on the lower end surface 122a of the opening 12 in a posture where the plate surface is substantially horizontal. The lower end surface 122a of the opening 12 is a horizontal plane. The indoor side portion of the body fixing portion 41 is located directly above the lower end surface 122a of the opening 12, and the outdoor side portion protrudes to the outdoor side 14 beyond the outer wall 11.

[0016] The outdoor side portion 所 43 is formed in a flat plate shape and protrudes upward from the outdoor side edge portion 41a of the body fixing portion 41 in a posture where the plate surface is parallel to the finding surface.

[0017] As shown in FIG. 8, the indoor side portion 44 has a first indoor side plate portion 441 and a second indoor side plate portion 442. The first indoor side plate portion 441 is formed in a flat plate shape and protrudes upward from the indoor side edge portion 41b of the body fixing portion 41 in a posture where the plate surface is parallel to the finding surface

[0017] . The second indoor side plate portion 442 is formed in a flat plate shape and protrudes to the outdoor side 14 from slightly below the upper end portion 441a of the first indoor side plate portion 441 in a posture where the plate surface is horizontal. The angle 46 is formed in a flat plate shape and protrudes to the indoor side 13 from the middle portion in the vertical direction of the first indoor side plate portion 441 in a posture where the plate surface is horizontal. A frame is provided on the indoor side 13 of the first indoor side plate portion 441 and below the angle 46. In the present embodiment, the angle 46 is provided on the lower frame 32, but the angle 46 may not be provided. The angle 46 may be integrally formed with the indoor side portion 44, or may be fixed to the indoor side portion 44 with an adhesive or screws as a separate member from the indoor side portion 44.

[0018] The fixing piece 45 is formed in a flat plate shape and protrudes downward from the middle of the structural fixing part 41 in the indoor-outdoor direction, with the plate surface parallel to the visible surface. The fixing piece 45 has protrusions 451 that project toward the indoor 13 side at its lower end and at the middle of the vertical direction. The fixing piece 45 is positioned along the structural outer surface 111 of the exterior wall 11 and is fixed to the structural outer surface 111 from the outdoor 14 side with screws or the like. The protrusions 451 of the fixing piece 45 come into contact with the structural outer surface 111. An exterior wall material 112 or the like is provided on the outdoor 14 side of the fixing piece 45.

[0019] The shoji screen opposing section 42 is positioned above the frame fixing section 41 at a distance. The shoji screen opposing section 42 has a first shoji screen opposing plate section 51, a second shoji screen opposing plate section 52, a third shoji screen opposing plate section 53, a fourth shoji screen opposing plate section 54, a fifth shoji screen opposing plate section 55, a sixth shoji screen opposing plate section 56, and a seventh shoji screen opposing plate section 57. The first shoji screen opposing plate section 51 is formed in a flat plate shape. The surface of the first shoji screen opposing plate section 51 is slightly inclined with respect to the horizontal plane and extends diagonally from the upper end 43a of the outdoor side section 43 toward the indoor side section 13. The second shoji screen opposing plate section 52 is formed in a flat plate shape and extends upward from the end 51a of the first shoji screen opposing plate section 51 toward the indoor side section 13, with the plate surface parallel to the visible surface. The third shoji screen opposing panel 53 is formed in a flat shape and extends from the middle of the second shoji screen opposing panel 52 in the vertical direction toward the room 13, with its surface being horizontal.

[0020] The fourth shoji screen opposing panel 54 is formed in a flat shape and extends upward from the interior 13 side end 53a of the third shoji screen opposing panel 53 with its surface parallel to the visible surface. The second shoji screen opposing panel 52 and the fourth shoji screen opposing panel 54 are spaced apart in the interior-outside direction and their respective upper ends 52a and 54a are positioned at the same height. The fifth shoji screen opposing panel 55 is formed in a flat shape and extends towards the interior 13 side from the upper end 54a of the fourth shoji screen opposing panel 54 with its surface in a horizontal position. The interior 13 side end 55a of the fifth shoji screen opposing panel 55 is connected to the vertically intermediate part of the first interior side panel 441. The fifth shoji screen opposing panel 55 is located below the angle 46.

[0021] The sixth shoji screen opposing panel 56 is formed in a flat shape and extends upward from the middle of the fifth shoji screen opposing panel 55 in the indoor-outdoor direction, with the panel surface parallel to the visible surface. The fifth shoji screen opposing panel 55 is formed so that the portion on the indoor 13 side is thinner than the portion on the outdoor 14 side compared to the sixth shoji screen opposing panel 56.

[0022] The seventh sash-facing panel 57 is formed in a flat shape and extends from the upper end 56a of the sixth sash-facing panel 56 toward the interior 13, with its surface in a horizontal orientation. The end 57a of the seventh sash-facing panel 57 toward the interior 13 is connected to the vertically intermediate part of the first interior panel 441. The seventh sash-facing panel 57 is located above the angle 46. The seventh sash-facing panel 57 is positioned opposite the fifth sash-facing panel 55 with a gap between them. The seventh sash-facing panel 57 is positioned opposite the second interior panel 442 with a gap between them. The end 57b of the seventh sash-facing panel 57 toward the exterior 14 and the end 442a of the second interior panel 442 toward the exterior 14 have the same projection length toward the exterior 14 from the first interior panel 441.

[0023] The lower frame 32 has a first hollow section 321 and a second hollow section 322. The first hollow section 321 is a space surrounded by the frame fixing section 41, the exterior side section 43, the first interior side panel section 441, and the first to fifth sash opposing panel sections 51, 52, 53, 54, 55. The second hollow section 322 is a space surrounded by the fifth to seventh sash opposing panel sections 55, 56, 57 and the first interior side panel section 441. The lower frame 32 has a first rib 47 and a second rib 48 that further partition the first hollow section 321.

[0024] The first rib 47 and the second rib 48 divide the first hollow portion 321 of the lower frame 32 in the direction of the interior and exterior. The first rib 47 is positioned on the exterior 14 side than the second rib 48. The lower ends 47a and 48a of the first rib 47 and the second rib 48 are connected to the structural fixing portion 41, and the upper ends 47b and 48b of the first rib 47 and the second rib 48 are connected to the sash opposing portion 42.

[0025] The first rib 47 is formed in a flat plate shape and is positioned so that its surface is parallel to the visible surface. The lower end 47a of the first rib 47 is connected to the middle part of the structural fixing part 41 in the indoor-outdoor direction, and the upper end 48b is connected to the corner 511 formed by the first sash facing plate part 51 and the second sash facing plate part 52.

[0026] The second rib 48 is formed in a flat plate shape and is positioned so that its surface is parallel to the visible surface. The lower end 48a of the second rib 48 is connected to the middle part of the structural fixing part 41 in the indoor-outdoor direction, and the upper end 48b is connected to the corner 56b formed by the fifth sash opposing plate part 55 and the sixth sash opposing plate part 56 at the middle part of the fifth sash opposing plate part 55 in the indoor-outdoor direction. The second rib 48 is positioned directly below the sixth sash opposing plate part 56.

[0027] The first hollow section 321 is divided into three spaces arranged in the indoor-outdoor direction by the first rib 47 and the second rib 48. A metal core material 324 is placed in the space in the middle of the three spaces arranged in the indoor-outdoor direction. This space is surrounded by the frame fixing section 41, the fifth sash facing plate section 55, and the first rib 47 and the second rib 48. The fifth sash facing plate section 55 and the second rib 48 are each provided with core material support claws 325 for supporting the core material 324.

[0028] The core material 324 (referred to as the first core material 324a, see Figure 4) provided in the upper frame 31 and lower frame 32 opposite the sash 211 of the vertical sliding window, and the core material 324 (referred to as the second core material 324b, see Figure 3) provided in the position opposite the sash 212 of the fixed window, have different cross-sectional shapes. The first core material 324a is provided to support the sash 211 of the vertical sliding window and is formed in the shape of a plate. The second core material 324b is provided to support the facing material 23 of the fixed window and is formed in the shape of a rectangular tube. As shown in Figure 6, the second core material 324b extends not only to the portion of the upper frame 31 and lower frame 32 opposite the sash 212 of the fixed window, but also to the position opposite the mullion 6. A fixing member 8 for fixing the mullion 6 to the lower frame 32 is fixed to the position of the second core material 324b opposite the mullion 6. As shown in Figure 5, a plate-shaped first core material 324a is provided on a pair of vertical frames 33 and 34.

[0029] The lower frame 32 has a first groove 326 and a second groove 327. An airtight seal 241 (see Figures 3 to 5) is inserted into the second groove 327. A trim strip 242 (see Figures 3 and 5) is inserted into the first groove 326 when the sash 21 is a fixed window sash. The first groove 326 is surrounded by the upper side of the second sash opposing plate 52, the third sash opposing plate 53, and the fourth sash opposing plate 54, and opens upward. The upper end portion 52a of the second sash opposing plate 52 and the upper end portion 54a of the fourth sash opposing plate 54 each have a first claw portion 326a that protrudes toward each other to secure the trim strip.

[0030] The second groove 327 is surrounded by the upper side of the first indoor panel 441, the second indoor panel 442, and the seventh sash-facing panel 57, and opens to the outside 14. The outside 14-side end 57b of the seventh sash-facing panel 57 and the outside 14-side end 442a of the second indoor panel 442 each have a second claw portion 327a that protrudes toward each other to secure the airtight material 24.

[0031] The upper frame 31, the lower frame 32, and the pair of vertical frames 33, 34 have the same cross-sectional shape perpendicular to each other in the longitudinal direction. The upper frame 31 is symmetrical to the lower frame 32 in the vertical direction. The lower side of the pair of vertical frames 33, 34 is the side where the lower frame 32 is fixed to the building structure in each vertical frame, and the upper side of the lower frame 32 is the side where the sliding doors 211, 212 are placed in each vertical frame. For this reason, the shapes of the upper frame 31 and the pair of vertical frames 33, 34 will not be described.

[0032] As shown in Figure 10, the mullion 6 has an exterior plate portion 61, an interior plate portion 62, a first visible plate portion 63, a second visible plate portion 64, a first intermediate plate portion 65, a second intermediate plate portion 66, a third intermediate plate portion 67, a fourth intermediate plate portion 68, an exterior rib 69, and an interior rib 70. The cross-sectional shape of the mullion 6 is symmetrical in the width direction.

[0033] The exterior panel 61 is formed in a flat shape and is positioned at the end on the exterior 14 side with the panel surface parallel to the visible surface. The interior panel 62 is formed in a flat shape and is positioned at the end on the interior 13 side with the panel surface parallel to the visible surface.

[0034] The first visible panel portion 63 is formed in a flat shape and is positioned between the exterior panel portion 61 and the interior panel portion 62 with its surface parallel to the visible surface. The first visible panel portion 63 has two first protrusions 631, 631 that project from the interior 13 side surface toward the interior 13 side. The two first protrusions 631, 631 are spaced apart in the width direction. The second visible panel portion 64 is formed in a flat shape and is positioned between the first visible panel portion 63 and the interior panel portion 62 with its surface parallel to the visible surface. The second visible panel portion 64 has two second protrusions 641, 641 that project from the exterior 14 side surface toward the exterior 14 side. The two second protrusions 641, 641 are spaced apart in the width direction. As shown in Figures 8 and 9, the lower end surfaces 61a, 62a, 63a, and 64a of the exterior panel 61, interior panel 62, first visible panel 63, and second visible panel 64 are each formed so as to be perpendicular to the longitudinal direction of the mullion 6, that is, when the mullion 6 is joined to the upper frame 31 and the lower frame 32, they become horizontal planes. Although not shown, the upper end surfaces of the exterior panel 61, interior panel 62, first visible panel 63, and second visible panel 64 are also formed so as to be perpendicular to the longitudinal direction of the mullion 6, that is, when the mullion 6 is joined to the upper frame 31 and the lower frame 32, they become horizontal planes.

[0035] Spacing is provided between the interior panel 62 and the first visible panel 63, between the first visible panel 63 and the second visible panel 64, and between the second visible panel 64 and the interior panel 62. The exterior panel 61, interior panel 62, first visible panel 63, and second visible panel 64 are arranged so that their respective widthwise centers overlap in the interior-exterior direction. The exterior panel 61 and the first visible panel 63 have approximately the same width. The second visible panel 64 has a larger width than the first visible panel 63. The interior panel 62 has a larger width than the second visible panel 64. The exterior panel 61, first visible panel 63, second visible panel 64, and interior panel 62 are arranged parallel to each other.

[0036] As shown in Figure 6, the exterior panel portion 61 is positioned in contact with the second sash-facing panel portion 52 of the lower frame 32. The interior panel portion 62 is positioned in contact with the first interior panel portion 441 of the lower frame 32. The first visible panel portion 63 is positioned in contact with the fourth sash-facing panel portion 54 of the lower frame 32. The second visible panel portion 64 is positioned in contact with the exterior 14 side end portion 442a of the second interior panel portion 442 of the lower frame 32. As shown in Figure 8, the lower end surfaces 64a of the interior panel portion 62 and the second visible panel portion 64 are located above the lower end surfaces 61a and 63a of the exterior panel portion 61 and the first visible panel portion 63.

[0037] As shown in Figure 10, the first intermediate plate section 65 is formed in a flat shape, extending from one end 63b in the width direction of the first visible plate section 63 toward the interior 13, with its plate surface parallel to the visible surface, and connected to the middle part in the width direction of the second visible plate section 64. The second intermediate plate section 66 is formed in a flat shape, extending from the other end 63c in the width direction of the first visible plate section 63 toward the interior 13, with its plate surface parallel to the visible surface, and connected to the middle part in the width direction of the second visible plate section 64. The first intermediate plate section 65 and the second intermediate plate section 66 are symmetrical to each other in the width direction and are arranged parallel to each other.

[0038] As shown in Figure 6, the first intermediate plate portion 65 and the second intermediate plate portion 66 are positioned in contact with the fifth shoji-facing plate portion 55 of the lower frame 32. As shown in Figure 8, the lower end surfaces 65a and 66a of the first intermediate plate portion 65 and the second intermediate plate portion 66 are formed so as to be perpendicular to the longitudinal direction of the mullion 6, that is, so as to be horizontal planes when the mullion 6 is joined to the upper frame 31 and the lower frame 32. Although not shown, the upper end surfaces of the first intermediate plate portion 65 and the second intermediate plate portion 66 are also formed so as to be perpendicular to the longitudinal direction of the mullion 6, that is, so as to be horizontal planes when the mullion 6 is joined to the upper frame 31 and the lower frame 32.

[0039] As shown in Figure 10, the third intermediate plate portion 67 is formed in a flat shape and extends towards the exterior 14 from a position slightly to the other side in the width direction of one end 62b of the interior plate portion 62, with the plate surface parallel to the visible surface. The end 67b of the third intermediate plate portion 67 on the exterior 14 side is positioned at a distance from one side in the width direction of the second visible plate portion 64.

[0040] The fourth intermediate plate section 68 is formed in a flat shape and extends towards the exterior 14 from a position slightly to one side in the width direction of the other end 62c of the interior plate section 62, with the plate surface parallel to the visible surface. The end 68b of the fourth intermediate plate section 68 on the exterior 14 side is spaced apart on the other side in the width direction of the second visible plate section 64. The third intermediate plate section 67 and the fourth intermediate plate section 68 are symmetrical to each other in the width direction.

[0041] As shown in Figure 6, the third intermediate plate portion 67 and the fourth intermediate plate portion 68 are positioned in contact with the second indoor side plate portion 442 of the lower frame 32. The lower end surfaces 67a and 68a of the third intermediate plate portion 67 and the fourth intermediate plate portion 68 are formed so as to be perpendicular to the longitudinal direction of the mullion 6, that is, they are horizontal planes when the mullion 6 is joined to the upper frame 31 and the lower frame 32. Although not shown, the upper end surfaces of the third intermediate plate portion 67 and the fourth intermediate plate portion 68 are also formed so as to be perpendicular to the longitudinal direction of the mullion 6, that is, they are horizontal planes when the mullion 6 is joined to the upper frame 31 and the lower frame 32.

[0042] The exterior rib 69 has a first exterior rib 691 and a second exterior rib 692. The first exterior rib 691 and the second exterior rib 692 are formed in a flat plate shape, and extend from the middle of the width direction of the exterior plate portion 61 toward the interior 13 side and are connected to the first exterior plate portion 63, with the plate surface parallel to the visible surface. The first exterior rib 691 and the second exterior rib 692 are spaced apart in the width direction. The first exterior rib 691 is located on one side of the width direction of the second exterior rib 692. The first exterior rib 691 and the second exterior rib 692 are symmetrical with respect to each other in the width direction. The exterior rib 69 is spaced above the third sash opposing plate portion 53 of the lower frame 32. The lower end surface 69a of the exterior rib 69 is located at the same height as the lower end surface 63a of the exterior plate portion 61 and the first exterior plate portion 63. The lower end surface 69a of the outdoor rib 69 is formed such that it is a plane perpendicular to the longitudinal direction of the mullion 6, that is, a horizontal plane when the mullion 6 is joined to the upper frame 31 and the lower frame 32. Although not shown in the figure, the upper end surface of the outdoor rib 69 is also formed such that it is a plane perpendicular to the longitudinal direction of the mullion 6, that is, a horizontal plane when the mullion 6 is joined to the upper frame 31 and the lower frame 32, similar to the lower end surface.

[0043] The indoor rib 70 includes a first indoor rib 701, a second indoor rib 702, a third indoor rib 703, and a fourth indoor rib 704. The first to fourth indoor ribs 701-704 are formed in a flat plate shape, and extend from the middle of the width direction of the indoor plate portion 62 towards the outdoor 14 side, with the plate surface parallel to the visible surface, and are connected to the second visible plate portion 64. The first to fourth indoor ribs 701-704 are arranged in this order from one side in the width direction to the other side in the width direction, and adjacent indoor ribs in the width direction are spaced apart in the width direction.

[0044] The first indoor rib 701 and the fourth indoor rib 704 are symmetrical with respect to each other in the width direction. The second indoor rib 702 and the third indoor rib 703 are symmetrical with respect to each other in the width direction. The indoor rib 70 is positioned in contact with the second indoor plate portion 442 of the lower frame 32. The lower end surface 70a of the indoor rib 70 is positioned at the same height as the lower end surface 64a of the second visible plate portion 64. The lower end surface 70a of the indoor rib 70 is formed so that it is a plane perpendicular to the length direction of the mullion 6, that is, a horizontal plane when the mullion 6 is joined to the upper frame 31 and the lower frame 32. Although not shown, the upper end surface of the indoor rib 70 is also formed so that it is a plane perpendicular to the length direction of the mullion 6, that is, a horizontal plane when the mullion 6 is joined to the upper frame 31 and the lower frame 32, similar to the lower end surface.

[0045] The upper and lower end surfaces of the first intermediate plate section 65, the second intermediate plate section 66, the third intermediate plate section 67, the fourth intermediate plate section 68, the outdoor-side rib 69, and the indoor-side rib 70 correspond to the upper end surface 6b (see Figure 1) and lower end surface 6a of the mullion 6. In other words, the upper end surface 6b and lower end surface 6a of the mullion 6 are formed to be surfaces perpendicular to the longitudinal direction of the mullion 6.

[0046] The mullion 6 has a hollow section 71 formed within it, surrounded by a first visible plate section 63, a second visible plate section 64, a first intermediate plate section 65, and a second intermediate plate section 66. A core material 72 is placed in the hollow section 71 of the mullion.

[0047] The mullion 6 and the lower frame 32 are fixed together by a fixing member 8. The fixing member 8 is, for example, a metal member. As shown in Figures 6 and 7, the fixing member 8 includes a first fixing member 81 fixed to the second core material 324b of the lower frame 32, and a pair of second fixing members 82 that fix the first fixing member 81 to the core material 72 of the mullion 6.

[0048] The first fixing member 81 is a C-shaped member, positioned on the fifth shoji screen facing plate portion 55 of the lower frame 32 in a C-shape that opens upward when viewed from the indoor / outdoor direction. The first fixing member 81 has a frame fixing portion 83 positioned along the upper surface of the fifth shoji screen facing plate portion 55, and a pair of mullion fixing portions 84 that protrude upward from both ends in the width direction of the frame fixing portion 83. The frame fixing portion 83 is fixed to the second core material 324b of the lower frame 32 via the fifth shoji screen facing plate portion 55 with fasteners such as screws. The frame fixing portion 83 is fixed in a position on the second core material 324b opposite to the mullion 6. When the mullion 6 is positioned on the lower frame 32, the first fixing member 81 is inserted into the mullion hollow portion 71 of the mullion 6. The core material 72 of the mullion 6 is positioned above the lower end surface 6a of the mullion 6. The first fixing member 81, inserted into the hollow section 71 of the mullion, is located below the core material 72 of the mullion 6. The first fixing member 81 has a protruding piece 85 (see Figure 7) that protrudes upward from the end of the frame fixing section 83 on the interior 13 side.

[0049] As shown in Figures 6 and 7, the pair of second fixing members 82 are flat plate-shaped members. One of the pair of second fixing members 82 is positioned along one side of the second intermediate plate portion 66 of the mullion 6 in the width direction, and the other is positioned along the other side of the third intermediate plate portion 67 of the mullion 6 in the width direction. The lower part of the second fixing member 82 is positioned to overlap the mullion fixing portion 84 of the first fixing member 81 in the width direction via the first intermediate plate portion 65 or the second intermediate plate portion 66, and the upper part is positioned to overlap the core material 72 of the mullion 6 in the width direction via the first intermediate plate portion 65 or the second intermediate plate portion 66. The second fixing member 82 is fixed to the mullion fixing portion 84 and the core material 72 of the mullion 6 via the first intermediate plate portion 65 or the second intermediate plate portion 66 with fasteners such as screws. In this embodiment, a sealing material 86 is provided between the mullion 6 and the lower frame 32 (see Figure 8).

[0050] To fix the mullion 6 to the lower frame 32, the first fixing member 81 is fixed to the lower frame 32 and a sealing material 86 is installed, and the mullion 6 is placed on the lower frame 32 by inserting the first fixing member 81 into the hollow portion 71 of the mullion. The second fixing member 82 is used to fix the first fixing member 81 and the core material 72 of the mullion 6 from both sides in the width direction of the mullion 6. Fixing the mullion 6 to the upper frame 31 is done in the same way as fixing it to the lower frame 32.

[0051] The upper end surface 6b (see Figure 1) and lower end surface 6a of the mullion 6 of the door frame 1 are surfaces perpendicular to each other in the longitudinal direction (vertical direction). This eliminates the need to form notches in the upper frame 31 and lower frame 32 for inserting the ends of the mullion 6. As a result, the angles 46 of the upper frame 31 and lower frame 32 are not cut out, and there is no need to repair the angles 46 after the mullion 6 is installed. Consequently, the mullion 6 can be easily joined to the upper frame 31 and lower frame 32.

[0052] The mullion 6 of the door frame 1 is fixed to the upper frame 31 and the lower frame 32 with fixing members 8. This allows the mullion 6 to be firmly fixed to the upper frame 31 and the lower frame 32.

[0053] The fixing member 8 for securing the mullion 6 of the door frame 1 to the upper frame 31 and lower frame 32 is fixed to the second core material 324b provided on the upper frame 31 and lower frame 32. This allows the fixing member 8 to be firmly fixed to the upper frame 31 and lower frame 32.

[0054] The second core material 324b of the door frame 1 extends the core material (a core material for supporting the sash 212 of the fixed window) provided in the upper frame 31 and lower frame 32 that faces the sash 212 of the fixed window, to a position facing the mullion 6. A fixing member 8 for fixing the mullion 6 to the upper frame 31 and lower frame 32 is fixed to the position of the second core material 324b that faces the mullion 6. In this way, the core material provided in the part facing the sash 212 of the fixed window and the core material for fixing the fixing member 8 are integrated, so the mullion 6 can be easily joined to the upper frame 31 and lower frame 32 compared to the case where the core material provided in the part facing the sash 212 of the fixed window and the core material for fixing the fixing member 8 are provided separately.

[0055] (Second Embodiment) The same reference numerals are used for members and parts that are the same as or similar to those in the first embodiment described above, and their descriptions are omitted. The configurations that differ from the first embodiment will be described below. As shown in Figures 11 and 12, in the door frame 1B of the second embodiment, the mullion 6 is joined to the upper frame and lower frame 32 by welding without using a fixing member 8. The welding of the mullion 6 and the lower frame 32 will be described below. The basic shapes of the mullion 6 and the lower frame 32 in the second embodiment are the same as in the first embodiment.

[0056] In the second embodiment, the position where the mullions 6 are installed on the lower frame 32 is the same as in the first embodiment. The exterior panel 61 is welded to the second sash-facing panel 52 of the lower frame 32. The interior panel 62 is welded to the first interior panel 441 of the lower frame 32. The first visible panel 63 is welded to the fourth sash-facing panel 54 of the lower frame 32. The second visible panel 64 is welded to the second interior panel 442 of the lower frame 32. The first intermediate panel 65 and the second intermediate panel 66 are welded to the fifth sash-facing panel 55 of the lower frame 32. The third intermediate panel 67 and the fourth intermediate panel 68 are welded to the second interior panel 442 of the lower frame 32. The exterior rib 69 is positioned above the third sash-facing panel 53 of the lower frame 32 at a distance. The interior rib 70 is welded to the second interior plate portion 442 of the lower frame 32.

[0057] As shown in Figures 13, 14, and 15, the first visible plate portion 63, the second visible plate portion 64, the outdoor side rib 69, and the indoor side rib 70 have notches 73 formed at their lower ends. Figure 15 is a cross-sectional view of the mullion 6. In Figure 15, the areas where the notches are formed are indicated by a grid-like hatching. The depth dimension (vertical dimension) of the notches 73 is, for example, 2.5 mm. Although not shown, the first visible plate portion 63, the second visible plate portion 64, the outdoor side rib 69, and the indoor side rib 70 also have notches similar to those described above formed at their upper ends. In other words, notches 73 are formed on the upper and lower end faces of the mullion 6.

[0058] The first visible plate portion 63, the second visible plate portion 64, the outdoor side rib 69, and the indoor side rib 70 have notches 73, which create gaps between them and the upper frame 31 and lower frame 32 when they are placed on the upper frame 31 and lower frame 32 before welding. These gaps created by the notches 73 become the welding allowance when the mullions 6 are welded to the upper frame 31 and lower frame 32, allowing the molten resin to flow in. The notches 73 of the second visible plate portion 64 are formed only in the middle portion in the width direction. In the second embodiment, since no fixing member 8 is used as in the first embodiment, a core material does not need to be placed at the positions where the mullions 6 of the upper frame 31 and lower frame 32 face each other.

[0059] The mullion 6 of the door frame 1B is welded to the upper frame 31 and the lower frame 32. This allows the mullion 6 to be firmly fixed to the upper frame 31 and the lower frame 32.

[0060] The mullion 6 of the door frame 1B has notches 73 formed on its upper and lower end surfaces 6a. This allows the notches 73 to act as a welding allowance when the mullion 6 is welded to the upper frame 31 and lower frame 32, preventing the molten resin from leaking out. As a result, the mullion 6 can be easily and aesthetically joined to the upper frame 31 and lower frame 32.

[0061] This disclosure is not limited to the embodiments described above and can be modified as appropriate. For example, although the above embodiments describe the structure for joining the mullion 6 to the upper frame 31 and the lower frame 32, the above structure may be adopted when joining a transom extending in the left-right direction to a pair of vertical frames, with the mullion 6 being a transom and the upper frame 31 and the lower frame 32 being a pair of vertical frames.

[0062] The joinery frames 1 and 1B in the above embodiment are joinery frames for a series of windows in which a vertical sliding window and a fixed window are adjacent in the width direction via a mullion 6. However, the types of windows arranged via the mullion 6 may be other than vertical sliding windows and fixed windows. Vertical sliding windows and fixed windows may be adjacent to other types of windows, or windows of the same type may be adjacent to each other. The number of windows adjacent in the width direction may be three or more. The number and types of windows adjacent in the vertical direction via a transom may also be set as appropriate.

[0063] The joinery may be configured such that mullions are provided in areas divided vertically by the transoms on the inside of the joinery frame (the area between the transom and the upper frame, the area between the transom and the lower frame, and, if multiple transoms are provided, the area between the upper transom and the lower transom), and multiple windows are arranged in the width direction via the mullions. Alternatively, the joinery may be configured such that mullions are provided in areas divided vertically by the mullions on the inside of the joinery frame (the area between the mullion and one vertical frame, the area between the mullion and the other vertical frame, and, if multiple mullions are provided, the area between one mullion in the width direction and the other mullion in the width direction), and multiple windows are arranged in the width direction via the mullions.

[0064] In the above embodiment, the mullions 6 are joined to the upper frame 31 and lower frame 32 using fixing brackets and by welding. The mullions 6 may also be joined to the upper frame 31 and lower frame 32 by adhesive bonding or the like. The mullions 6 may be bonded to the upper frame 31 and lower frame 32 with adhesive bonding or the like, and then further fixed using fixing members 8. The shape of the fixing brackets may be other than those described above.

[0065] In the first embodiment described above, the upper frame 31 and the lower frame 32 are provided with a core material for fixing the fixing member 8, which is integrated with the core material for supporting the facing material 23 of the fixed window. The upper frame 31 and the lower frame 32 may also be provided with a dedicated core material for fixing the fixing member 8. The shape of the core material 324 provided in the upper frame 31 and the lower frame 32 may be different from that described above. The shape of the core material 324 may be different in the upper frame 31 and the lower frame 32.

[0066] In the second embodiment described above, notches 73 are formed in the mullion 6 to serve as welding allowances when the mullion 6 is welded to the upper frame 31 and the lower frame 32. When the mullion 6 is welded to the upper frame 31 and the lower frame 32, it is not necessary for the mullion 6 to have notches 73 formed in it. If notches are formed in the mullion 6, the position and number of notches 73 and the depth dimensions of the notches 73 may be set as appropriate.

[0067] In the above embodiment, an angle 46 is provided on the outer frame 3, but the angle 46 is not required. The angle 46 may be molded integrally with the indoor side portion 44, or it may be a separate component from the indoor side portion 44 and fixed with adhesive or the like. [Explanation of Symbols]

[0068] 1,1B Door frame, 2 Door, 3 Outer frame, 6 Mullion (intermediate frame), 6a Bottom end face, 6b Top end face, 8 Fixing member, 11 Exterior wall (structure), 12 Opening, 31 Upper frame, 32 Lower frame, 33,34 Vertical frame, 211,212 Shoji screen, 324 Core material, 324b Second core material (core material)

Claims

1. an outer frame provided along the opening of the body; an intermediate frame provided inside the outer peripheral frame and joined to the outer peripheral frame with the length direction perpendicular to the outer peripheral frame; A door and window frame in which the longitudinal end faces of the intermediate frame are surfaces perpendicular to the longitudinal direction.

2. The fixture frame according to claim 1 , wherein the intermediate frame is fixed to the outer peripheral frame by a fixing member.

3. The fixture frame according to claim 2 , wherein the fixing member is fixed to a core material provided on the outer perimeter frame.

4. The fitting frame according to claim 3, wherein the core material is integral with a core material for supporting a shoji screen provided on the outer peripheral frame.

5. The fitting frame according to any one of claims 1 to 4, wherein the intermediate frame is welded to the outer perimeter frame.

6. The fitting frame according to claim 5, wherein a notch is formed on an end face in the longitudinal direction of the intermediate frame to serve as a welding allowance when welding the intermediate frame to the outer peripheral frame.

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