Building materials

Abstract

To provide a fitting capable of securing the opening amount of a sliding door while securing heat insulation property and appearance quality.SOLUTION: A fitting includes an opening frame, a door body that slides within the opening frame, and a ventilation unit that is attached to the door body. The door body has a metal meeting stile, the opening frame has a mullion that engages with the meeting stile when the door body is in a fully closed position, the mullion has a cornering part that is formed by cutting out an outdoor side corner part of the frame inside depth surface and forms a recessed part with the door body, a resin mullion attachment member that is provided so as to cover the surface of the cornering part, and the ventilation unit has a vertical frame that is connected to the frame inside depth surface of the meeting stile, and a vertical frame attachment member that is attached to the vertical frame and forms the indoor side facing surface of the vertical frame and forms the inner surface of the recessed part together with the mullion attachment member.SELECTED DRAWING: Figure 8A

Description

[Technical Field]

[0001] The present invention relates to a building fixture equipped with a mullion. [Background technology]

[0002] Patent Document 1 discloses a configuration of a sliding door with a single-sliding structure that includes a joint frame and a joint mullion. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6386360 [Patent Document 2] Patent No. 6431327 Summary of the Invention [Problem to be solved by the invention]

[0004] The fixture in Patent Document 1 has a recessed portion facing the inside of the frame on the exterior facing surface of the mullion. This type of recessed portion generally functions as a retracting space for the door stile and handle when the sliding door is opened. However, in the configuration of Patent Document 1, the opening of the recessed portion on the inside of the frame is blocked with a shaped member. This is thought to be to conceal the recessed portion with a resin shaped member, preventing exposure of the metal components to the interior side of the room and ensuring thermal insulation performance and appearance quality. However, with this configuration, the recessed portion blocked by the shaped member cannot be used as a retracting space, resulting in a reduction in the sliding door's opening distance.

[0005] On the other hand, Patent Document 2 discloses a fitting with a ventilation window (ventilation unit) installed in the door body. In this type of fitting, the ventilation unit is located inside the sliding door, so in addition to the sliding door joint frame, the vertical frame of the ventilation unit is also located on the outside of the mullion. For this reason, this type of fitting tends to have more metal parts exposed to the interior side near the mullion than fittings that are not for ventilation, making it even more difficult to ensure the sliding door's opening amount in the recessed area while also improving insulation performance and appearance quality.

[0006] The present invention has been made in consideration of the above-mentioned problems of the conventional technology, and aims to provide a fixture that can ensure the opening amount of a sliding door while ensuring insulation performance and appearance quality. [Means for solving the problem]

[0007] One aspect of the present invention is a fixture comprising an opening frame, a door body that slides within the opening frame, and a ventilation unit attached to the door body, wherein the door body has a metal joint stile, the opening frame has a mullion that joins with the joint stile when the door body is in the fully closed position, the mullion is formed by cutting out the outdoor corner of the inner visible surface of the frame, and has a chamfered portion that forms a recess between the frame and the door body, and a resin mullion attachment member that is arranged to cover the surface of the chamfered portion, and the ventilation unit has a vertical frame connected to the inner visible surface of the frame of the joint stile, and a vertical frame attachment member that is attached to the vertical frame to form the indoor visible surface of the vertical frame and, together with the upright attachment member, forms the inner surface of the recess. [Effects of the Invention]

[0008] According to the above aspect of the present invention, it is possible to ensure the opening amount of the sliding door while ensuring heat insulation performance and appearance quality. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a view of a fitting according to one embodiment as seen from the outside of the room. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] This is an enlarged vertical cross-sectional view of the upper frame of the door body and the upper frame of the ventilation opening frame and their surrounding area. [Figure 5] This is an enlarged vertical cross-sectional view of the bottom frame of the door body and the bottom frame of the ventilation opening frame and their surrounding areas. [Figure 6A] This is an enlarged oblique view of the small end face and surrounding area of the upper frame of the door body and the upper frame of the ventilation opening frame. [Figure 6B] 6B is a perspective view showing a state in which a vertical frame and a vertical frame are connected to the upper frame and the upper frame shown in FIG. 6A. FIG. [Figure 7A] This is an enlarged oblique view of the small end face and surrounding area of the bottom frame of the door body and the bottom frame of the ventilation opening frame. [Figure 7B] 7B is a perspective view showing a state in which a vertical frame and a vertical stile are connected to the lower frame and the bottom frame shown in FIG. 7A. FIG. [Figure 8A] This is an enlarged cross-sectional view of the mullion and door frame and their surrounding area when the door body is in the fully closed position. [Figure 8B] 8B is a cross-sectional view showing a state in which the door body is in a fully open position from the state shown in FIG. 8A. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] BEST MODE FOR CARRYING OUT THE INVENTION A fitting according to a preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0011] As shown in Figure 1, a fitting 10 according to one embodiment comprises an opening frame 12 fixed to an opening formed in a building skeleton, and a door body 14 slidably supported by the opening frame 12. The fitting 10 is used, for example, as an entrance door.

[0012] In this application, the "visible direction" refers to the depth direction of the fitting 10 (the direction indicated by arrow Z in the figure), and the "visible surface" refers to a surface extending along the visible direction. The "visible direction" refers to a direction perpendicular to the visible direction. In the case of a vertical frame 12c or the like that is long in the vertical direction, it refers to the left-right direction perpendicular to its longitudinal direction (the direction indicated by arrow X in the figure), and in the case of an upper frame 12a or the like that is long in the horizontal direction, it refers to the up-down direction perpendicular to its longitudinal direction (the direction indicated by arrow Y in the figure). The "visible surface" refers to a surface along the visible direction. The "inside of the frame" refers to the inner part of the frame-shaped member, such as the opening frame 12. The "outside of the frame" refers to the outer peripheral part of the frame-shaped member, such as the opening frame 12, that is fixed to the building frame. The "inside of the frame" refers to the direction from the outside of the frame of the frame-shaped member, such as the opening frame 12, toward the inside of the frame. The "outside of the frame" refers to the direction from the inside of the frame of the frame-shaped member, such as the opening frame 12, toward the outside of the frame.

[0013] As shown in Figures 1 to 3, the opening frame 12 is a framework made up of an upper frame 12a, a lower frame 12b, vertical frames 12c, and mullions 12d. Each of the frames 12a to 12c is an extruded member made of aluminum alloy or the like. A resin attachment member 16 made of polyvinyl chloride resin (PVC) or the like is attached to the interior side of the frame's inner visible surface.

[0014] The mullion 12d is an extruded member made of aluminum alloy or the like, with a mullion attachment member 17 made of resin, such as PVC, attached to one portion. The mullion 12d has a chamfered portion 20 formed by cutting out the outdoor corner of its frame inner visible surface 12d1. The chamfered portion 20 forms a retraction space for the door end stile 22c of the door body 14 and the pull part 60 attached thereto. In this embodiment, the chamfered portion 20 is, for example, a recess formed by cutting out a corner at a right angle. The mullion attachment member 17 has a roughly crank-shaped cross section and covers the frame inner visible surface 12d1 and the inner surfaces 20a, 20b of the chamfered portion 20.

[0015] As shown in FIGS. 1 to 3, the door body 14 is a sliding door with a single-sliding structure that is supported by the opening frame 12 and slides in the X direction inside the frame. The door body 14 has a ventilation unit 21 and a frame body 22.

[0016] First, the frame body 22 is a frame assembly of an upper frame 22a, a lower frame 22b, a door end frame 22c, and a joint frame 22d. The frame body 22 has a composite structure combining a metal frame material 23 made of an extruded material such as an aluminum alloy and a resin frame material 24 made of an extruded material such as PVC. The metal frame material 23 has a metal upper frame 23a, a metal lower frame 23b, a metal door end frame 23c, and a metal joint frame 23d. The resin frame material 24 has a resin upper frame 24a, a resin lower frame 24b, and a resin door end frame 24c.

[0017] The upper frame 22a is made by attaching a resin upper frame 24a to the interior facing surface of a metal upper frame 23a. The lower frame 22b is made by attaching a resin lower frame 24b to the interior facing surface of a metal lower frame 23b. The front frame 22c is made by attaching a resin front frame 24c to the interior facing surface of a metal front frame 23c. The joint frame 22d is made of a metal joint frame 23d.

[0018] As shown in Figure 2, the door body 14 slides by a guide 25 provided on the outer frame surface of the upper frame 22a being guided by a rail 26a of the upper frame 12a, and a door roller 27 provided on the outer frame surface of the lower frame 22b rolling on a rail 26b of the lower frame 12b.

[0019] 2 and 3, the ventilation unit 21 is a ventilation window that allows air to circulate between the inside and outside of the room when the door body 14 is closed. In this embodiment, a casement window is used as the ventilation unit 21. The ventilation unit 21 has a ventilation opening frame 28, an outer shoji screen 29, an inner shoji screen 30, and a screen door device 31.

[0020] The ventilation opening frame 28 is formed by combining an upper frame 28a, a lower frame 28b, and left and right vertical frames 28c, 28d. The ventilation opening frame 28 has a composite structure combining a metal frame material 33 made of an extruded material such as an aluminum alloy with a resin frame material 34 made of an extruded material such as PVC. The metal frame material 33 has an upper metal frame 33a, a lower metal frame 33b, and vertical metal frames 33c, 33d. The resin frame material 34 has an upper resin frame 34a, a lower resin frame 34b, and vertical resin frames 34c, 34d.

[0021] The upper frame 28a is made by attaching a resin upper frame 34a to the inner visible surface of the metal upper frame 33a. The lower frame 28b is made by attaching a resin lower frame 34b to the inner visible surface and the interior facing surface of the metal lower frame 33b. The vertical frames 28c and 28d are made by attaching resin vertical frames 34c and 34d to the inner visible surface and the interior facing surface of the metal vertical frames 33c and 33d, respectively.

[0022] The inner visible surfaces of the vertical frames 28c, 28d are provided with opening grooves 35a, 35b aligned in the projection direction, respectively. The ventilation unit 21 of this embodiment includes two shoji screens 29, 30 aligned in the indoor / outdoor direction. The side ends of the shoji screens 29, 30 are inserted into the opening grooves 35a, 35b, respectively, so that they can move up and down. The resin vertical frames 34c, 34d are arranged to cover the indoor-facing surface of the outdoor-side opening groove 35a. Therefore, the vertical frames 28c, 28d each include a resin vertical frame attachment member 36 made of PVC or the like that covers the indoor-facing surface of the indoor-side opening groove 35b. As a result, the indoor-facing surface of the vertical frames 28c, 28d is essentially formed by the vertical frame attachment member 36.

[0023] The outer shoji screen 29 and the inner shoji screen 30 are ventilation shoji screens. The outer shoji screen 29 has a face material 38 supported on all four sides by ventilation frames 39. The inner shoji screen 30 has a face material 40 supported on all four sides by ventilation frames 41. The face materials 38, 40 are double-glazed glass, for example, with two sheets of glass arranged side by side with a spacer between them. The ventilation frames 39, 41 have a composite structure that combines a metal frame made of an extruded material such as an aluminum alloy with a resin frame made of an extruded material such as PVC.

[0024] The screen door device 31 is installed to cover the shoji screens 29, 30 from the outside of the room. The screen door device 31 has a screen door frame 31a fixed to the outside-facing surface of the ventilation opening frame 28, and a screen door 31b supported by the screen door frame 31a. The screen door 31b is, for example, a roll-up type that can be raised and lowered. The screen door device 31 may be omitted.

[0025] Next, we will explain the specific configuration and effects of each part of the fitting 10. First, we will explain the connection structure between the frame 22 and the ventilation opening frame 28.

[0026] Generally, in fittings equipped with ventilation units, the frame of the door body and the ventilation opening frame of the ventilation unit are made of the same material. On the other hand, in the fitting 10 of this embodiment, the frame 22 and the ventilation opening frame 28 are made of separate materials, and the ventilation opening frame 28 is connected to the frame 22.

[0027] As shown in Figure 4, the upper frame 22a has an upper connecting portion 44a on the frame inner visible surface 22a1 of the metal upper frame 23a. The upper connecting portion 44a is located in a position hidden on the indoor side of the outdoor visible surface 22a2 of the upper frame 22a. The upper connecting portion 44a is composed of, for example, a pair of L-shaped plate pieces. In this embodiment, one of the plate pieces that make up the upper connecting portion 44a is provided on the back side of the outdoor visible surface 22a2.

[0028] The upper frame 28a is connected to the upper stile 22a by engaging the engagement piece 44b at the indoor end of the metal upper frame 33a with the upper connecting portion 44a. The metal upper frame 33a has a drain surface 33a1 that slopes downward toward the outdoor side and a hollow portion 33a2 provided on the back side of the drain surface 33a1. The engagement piece 44b is formed in the portion where the indoor end of the drain surface 33a1 is bent upward. The metal upper frame 33a has an attachment portion 45a in a portion hidden inside the frame of the hollow portion 33a2. The resin upper frame 34a is connected to the metal upper frame 33a by engaging the engagement piece 45b at the outdoor end with the attachment portion 45a.

[0029] As shown in Figure 4, the upper frame 28a is arranged to protrude from the exterior-facing surface 22a2 of the upper frame 22a to the exterior. In this case, the boundary between the upper frame 22a and the upper frame 28a, that is, the boundary between the exterior-facing surface 22a2 and the drip edge 33a1, is the only boundary exposed to the exterior of the fitting 10, so the appearance quality is not compromised. Moreover, while the upper frame 22a and the upper frame 28a are both composite structures of metal and resin, their exterior surfaces are composed of the continuous metal upper frame 23a and metal upper frame 33a. As a result, the connection between the upper frame 22a and the upper frame 28a has high rigidity and fire resistance.

[0030] Furthermore, the upper connecting portion 44a and the engaging piece 44b of the fitting 10 are hidden behind the exterior-facing surface 22a2 of the metal upper frame 23a. This prevents the upper frame 22a and the upper frame 28a from disengaging at the upper connecting portion 44a, even when exposed to heat from a fire from the exterior. Furthermore, the upper connecting portion 44a and the engaging piece 44b are located above the drainage surface 33a1, providing high waterproofing. Furthermore, the fitting 10 prevents the resin upper frame 34a from falling off the metal upper frame 33a in the event of a fire, because the attachment portion 48a of the resin upper frame 34a to the metal upper frame 33a is located on the interior-facing surface of the metal upper frame 33a. In particular, the attachment portion 48a is hidden inside the hollow portion 33a2 of the metal upper frame 33a, further improving fire resistance through the insulating effect of the hollow portion 33a2.

[0031] Next, as shown in FIG. 6A, the overall length (length in the X direction) of the upper frame 28a is configured to be shorter than the overall length (length in the X direction) of the upper frame 22a. Therefore, a step L is formed between the fore-end face 22a3 of the upper frame 22a and the fore-end face 28a1 of the upper frame 28a due to the difference in their overall lengths. In other words, the fore-end face 28a1 of the upper frame 28a is offset inward from the fore-end face 22a3 of the upper frame 22a. Note that while FIGS. 6A and 6B illustrate only one end of the upper frame 22a and the upper frame 28a, the other end is also substantially symmetrical.

[0032] That is, the fitting 10 is equipped with a ventilation unit 21. For this reason, as shown in Figures 3 and 6B, the fitting 10 has the ventilation opening frame 28 protruding from the inside of the frame of the frame body 22 to the outside of the room. For this reason, the above-mentioned step L is necessary between the end faces 22a3, 28a1 of the upper frame 22a and the upper frame 28a. Therefore, the door end frame 22c and the joint frame 22d, which are vertical frames, are screwed to the end faces 22a3, 28a1 while spanning the step L and covering the end faces 22a3, 28a1.

[0033] In this way, the upper frame 22a, which is a horizontal frame, and the upper frame 28a, which is a horizontal frame, are connected using separate members, forming a step L between their respective fore-end faces 22a3, 28a1. This eliminates the need for post-processing of the fore-end face 28a1 of the fitting 10 to form the step L. In other words, in the typical fitting described above, the door frame and the ventilation opening frame of the ventilation unit are constructed from a single member, requiring additional processing to form the step L. In contrast, the fitting 10 of this embodiment does not require additional processing for the step L, resulting in high manufacturing efficiency. While the resin upper frame 34a is not shown in Figures 6A and 6B, the overall length of the resin upper frame 34a is the same as the overall length of the metal upper frame 33a, and its fore-end face is also flush with the fore-end face 28a1.

[0034] Next, the connecting structure between the lower frame 22b and the lower frame 28b and the waterproof structure provided by the lower frame 28b will be described.

[0035] As shown in Figure 5, bottom frame 22b has a lower connecting portion 48a at the top of the exterior facing surface 22b1 of metal bottom frame 23b. Lower connecting portion 48a is composed of, for example, opposing L-shaped plates and a recess. Bottom frame 28b has an engagement piece 48b on its interior facing surface 28b1 that overlaps with exterior facing surface 22b1 of bottom frame 22b. Bottom frame 28b is connected to bottom frame 22b by engaging engagement piece 48b with lower connecting portion 48a.

[0036] The metal lower frame 33b has, in order from the indoor side to the outdoor side, a receiving surface 33b1, a gutter-shaped portion 33b2, and a drip surface 33b3. The receiving surface 33b1 is an inclined surface that slopes downward toward the outdoor side. The gutter-shaped portion 33b2 protrudes downward on the outdoor side of the receiving surface 33b1 and forms a groove shape. The drip surface 33b3 is an inclined surface that slopes downward toward the outdoor side on the outdoor side of the gutter-shaped portion 33b2. The engagement piece 48b is provided on the indoor-side visible surface 28b1 of the gutter-shaped portion 33b2, which faces the outdoor-side visible surface 22b1 of the lower frame 22b.

[0037] The receiving surface 33b1 and the gutter-shaped portion 33b2 face the lower end 30a of the inner shoji screen 30, i.e., the lower frame of the ventilation frame 41, and cover it in the forward direction. Specifically, the indoor end of the receiving surface 33b1 is located inside the indoor surface of the inner shoji screen 30, and the outdoor end of the gutter-shaped portion 33b2 is located outside the outdoor surface of the inner shoji screen 30. Of course, the receiving surface 33b1 and the gutter-shaped portion 33b2 also cover the lower end 30a of the inner shoji screen 30 in the longitudinal direction. In this case, the gutter-shaped portion 33ba1 is located outside the outdoor-facing surface 22b1 of the lower frame 22b, and overlaps with the upper part of the outdoor-facing surface 22b1. In this case, the receiving surface 33b1 and the gutter-shaped portion 33b2, including the drip edge 33b3, are composed of a single shaped member.

[0038] Therefore, the lower frame 28b is also arranged to protrude from the exterior facing surface 22b1 of the stile 22b to the exterior. The lower frame 28b has a receiving surface 33b1 and a gutter-shaped portion 33b2 on the metal lower frame 33b, which cover the lower end 30a of the inner shoji screen 30. Therefore, in the fitting 10, rainwater, condensation, etc. that flows down the interior / exterior surface of the inner shoji screen 30 is trapped by the metal receiving surface 33b1 and the gutter-shaped portion 33b2 and appropriately drained to the exterior, as described below. As a result, the fitting 10 achieves high waterproofing performance. Furthermore, because the gutter-shaped portion 33b2 overlaps with the exterior facing surface 22b1 of the stile 22b and protrudes downward, the volume of the gutter-shaped portion 33b2 is expanded, improving water storage capacity and drainage.

[0039] The fitting 10 of this embodiment includes a communication opening 50 that penetrates the interior facing surface 28b1 of the gutter-shaped portion 33b2 and the exterior facing surface 22b1 of the stile 22b, allowing water to flow from the gutter-shaped portion 33b2 into the stile 22b. Therefore, water flowing from the receiving surface 33b1 to the gutter-shaped portion 33b2 passes through the communication opening 50 while flowing through the gutter-shaped portion 33b2. The water that passes through the communication opening 50 flows down the metal stile 23b and is discharged to the outside through, for example, a drainage element 51 provided on the exterior facing surface 22b1. The communication opening 50 penetrates the lower connecting portion 48a between the stile 22b and the stile 28b. Therefore, waterproofing around the communication opening 50 can be easily achieved by, for example, providing a waterproofing material at the connection between the lower connecting portion 48a and the engaging piece 48b.

[0040] The drainage path from the gutter-shaped portion 33b2 is not limited to this. For example, a drain outlet may be provided directly on the outdoor-facing surface of the gutter-shaped portion 33b2, as in drain component 51 shown by the two-dot chain line in Fig. 5. Alternatively, for example, a path may be provided that drains water flowing down inside the metal bottom frame 23b to the outdoor side through the lower end surface of the metal bottom frame 23b, as in drain outlet 52 shown in Fig. 5.

[0041] As shown in FIG. 5, the resin sill 34b has a sight piece 34b1 and a recessed piece 34b2 and is formed with a generally L-shaped cross section. The sight piece 34b1 covers the interior-facing surface of the protruding piece 33b4 that protrudes upward from the interior end of the metal sill 33b. The recessed piece 34b2 protrudes to the exterior so as to cover the exterior-facing surface of the receiving surface 33b1. The upper end of the sight piece 34b1 and the tip of the recessed piece 34b2 engage with the metal sill 33b, thereby attaching the resin sill 34b to the metal sill 33b. This allows the resin sill 34b to reliably cover the portion of the metal sill 33b exposed to the interior, further improving the appearance and insulation performance.

[0042] Next, as shown in Fig. 7A, the overall length (length in the X direction) of lower frame 28b is also configured to be shorter than the overall length (length in the X direction) of lower stile 22b. As a result, a step L is formed between fore-end face 22b2 of lower stile 22b and fore-end face 28b2 of lower frame 28b due to the difference in their respective overall lengths. Note that Figs. 7A and 7B only illustrate one end of lower stile 22b and lower frame 28b, but the other end has a substantially symmetrical structure.

[0043] In this way, the bottom frame 22b, which is a horizontal stile, and the bottom frame 28b, which is a horizontal frame, are also connected using separate members, and a step L is formed between the end faces 22b2, 28b2 of each other. As a result, the fitting 10 does not require additional processing to form the step L on the end face 28a2 of the bottom frame 28b (see Figure 7B), further improving manufacturing efficiency. Also, because the bottom frame 22b and the bottom frame 28b are separate members, the metal bottom frame 33b can be formed into a desired saucer shape regardless of the shape of the bottom frame 22b, further improving waterproof performance.

[0044] Next, the relationship between the door body 14 and the mullion 12d will be explained.

[0045] As shown in Figure 8A, when the door body 14 is in the fully closed position, the mullion 12d fits together with the door frame 22d (metal door frame 23d), and their smoke deflectors 54, 55 face each other in the indoor / outdoor directions. In this case, the chamfered portion 20 of the mullion 12d forms a recess 56 between itself and the indoor surface of the door body 14. The recess 56 is a concave space that opens toward the inside of the opening frame 12.

[0046] The recess 56 is surrounded on three sides by a first inner surface 56a facing the outside of the room, a second inner surface 56b facing the inside of the frame, and a third inner surface 56c facing the inside of the room. The first inner surface 56a is formed by a portion of the surface of the upright attachment member 17 that covers the inner surface 20a, which is the outside-facing surface of the chamfered portion 20. The second inner surface 56b is formed by a portion of the surface of the upright attachment member 17 that covers the inner surface 20b, which is the inside-facing surface of the frame of the chamfered portion 20. The third inner surface 56c is formed by the indoor-facing surface of the vertical frame attachment member 36 that is attached to the vertical frame 28d of the ventilation unit 21.

[0047] As a result, when the recess 56 of the fitting 10 is viewed from the inside of the room as shown by arrow A in Figure 8A, the metal fitting stile 23d, which is a metal member, is not exposed at all. In other words, the recess 56 has almost the entire inner surfaces 56a to 56c formed of the attachment members 17, 36, which are resin members. For this reason, the fitting 10 has high thermal insulation performance and a high quality appearance.

[0048] The frame 22 is a composite structure of metal frame material 23 and resin frame material 24, and the opening frame 12 including the mullions 12d has a similar structure. Resin material is easy to color and can be formed in a color according to the user's preference, but it is not easy to change the color of metal material.

[0049] Therefore, the appearance quality of the fitting 10 is ensured by attaching a laminate film 58 (shown by a dashed line in FIG. 8A) of the same color as the surrounding resin material to the surface exposed to the outside of the metal joint frame 23d. In the case of the metal joint frame 23d, the laminate film 58 covers, for example, the frame outer visible surface 23d1 and the outdoor visible surface 23d2.

[0050] On the other hand, the surfaces of the metal joint frame 23d that are hidden by the resin attachment members 17, 36 and are not exposed to the outside, specifically the frame inner visible surface 23d3 and the room inner visible surface 23d4, do not have laminate film 58 attached. In other words, since the surfaces 23d3, 23d4 of the metal joint frame 23d are hidden by the resin attachment members 17, 36, there is no need to provide the laminate film 58. As a result, the area of the laminate film 58 attached to the fitting 10 can be minimized, reducing labor costs and parts costs.

[0051] In the fitting 10 of this embodiment, the frame inside portion 23d5 of the metal joint frame 23d is exposed in the recess 56 (see FIG. 8A). However, because this frame inside portion 23d5 is only slightly exposed from the gap between the inner surfaces 56b and 56c, there is almost no impact on the appearance quality even if the laminate film 58 is not provided. Moreover, when the fitting 10 is in the fully closed position shown in FIG. 8A, the frame inside projection surface 23d3 (and the frame inside portion 23d5) of the joint frame 22d is positioned in a position offset toward the outside of the frame from the frame inside projection surface 17a of the mullion attachment member 17 and the frame inside projection surface 12d1 of the mullion 12d. In other words, the joint frame 22d has a smaller visible width than the mullion 12d. As a result, the fitting 10 can suppress the amount of protrusion of the metal joint frame 23d into the recess 56, and can further suppress the metal joint frame 23d from being exposed in the recess 56.

[0052] Of course, the frame inner portion 23d5 may be provided with a laminate film 58. Also, for example, the visible width of the metal joint frame 23d may be reduced toward the outside of the frame, thereby completely preventing the frame inner portion 23d5 from being exposed to the recess 56.

[0053] As shown in Figure 8B, in the fitting 10 of this embodiment, the recess 56 opens to the inside of the frame. Therefore, when the door body 14 is in the fully open position, the fitting 10 can maximize the opening amount of the door body 14 while avoiding the door end frame 22c and the pull part 60 attached thereto from interfering with the upright 12d (upright attachment member 17). In other words, by forming the inner surfaces 56a to 56c of the recess 56 from a resin material, the fitting 10 can be configured so that the recess 56 opens to the inside of the frame of the opening frame 12, thereby making it possible to ensure the opening amount of the door body 14.

[0054] 8A and 8B, the upright attachment member 17 has a pocket 63 to which a tensioning material 62 is attached, which contacts the interior surface of the door body 14. The pocket 63 is located away from the inner surfaces 56a to 56c of the recess 56, specifically, in a position hidden outside the frame of the second inner surface 56b. This prevents the tensioning material 62 from interfering with the pull tab 60, and also improves the appearance quality of the recess 56.

[0055] According to one aspect of the present invention, a fixture includes a door frame, a door body that slides within the door frame, and a ventilation unit attached to the door body. The door body has a metal door frame, and the door frame has a mullion that fits with the door frame when the door body is in the fully closed position. The mullion has a chamfered portion formed by cutting out the outdoor corner of the inner visible surface of the door frame, forming a recess between the door body and the door frame, and a resin mullion attachment member that covers the surface of the chamfered portion. The ventilation unit has a vertical frame connected to the indoor visible surface of the door frame, and a vertical frame attachment member that is attached to the vertical frame to form the indoor visible surface of the vertical frame and forms the inner surface of the recess together with the mullion attachment member. With this configuration, the inner surface of the recess is formed by the resin mullion attachment member and vertical frame attachment member, thereby ensuring the door body's opening width through the recess and achieving high insulation performance and appearance quality.

[0056] The visible width of the stile may be smaller than the visible width of the upright, and when the door body is in the fully closed position, the visible surface of the stile inside the frame may be positioned offset to the outside of the frame from the visible surface of the upright attachment member inside the frame. In this way, the protrusion length of the stile into the recess can be reduced, and the metal stile can be prevented from being exposed in the recess, which would impair the appearance quality.

[0057] When the door body is in the fully closed position, the recess may have a first inner surface facing the outside of the room, a second inner surface facing the inside of the opening frame, and a third inner surface facing the inside of the room, the first inner surface and the second inner surface being formed by the upright attachment member, and the third inner surface being formed by the vertical frame attachment member. In this way, each inner surface of the recess can be formed by a resin member, ensuring thermal insulation performance and appearance quality.

[0058] The door body may have a door stile, and the recess may be configured to open facing the inside of the opening frame, so that the door stile can be smoothly retracted into the recess while avoiding interference and ensuring thermal insulation performance and appearance quality.

[0059] The upright attachment member may have a pocket for attaching a tensioning material that abuts against the interior surface of the door body, and the pocket may be positioned so as not to form the inner surface of the recess. This prevents the tensioning material from interfering with the door stile and the handle attached thereto, and also improves the appearance quality of the inner surface of the recess.

[0060] The frame stile may have a laminate film on its outer frame surface and its exterior facing surface, but not on its inner frame surface and its interior facing surface. In other words, since the recess of the fixture is formed from a resin material, the metal frame stile is not significantly exposed in the recess. As a result, the fixture can achieve high appearance quality without the need for a laminate film in this area, minimizing the area where the laminate film is applied, thereby reducing labor and parts costs.

[0061] It should be noted that the present invention is not limited to the above-described embodiment, and can be freely modified without departing from the spirit of the present invention.

[0062] In the above, attachment members 16, 17, 36, resin frame member 24, and resin frame member 34 are given as examples of members that are attached to the interior side or frame inside of the metal members, but such non-metallic members may also be made of materials other than resin, such as wood. [Explanation of symbols]

[0063] 10 fittings, 12 opening frame, 14 door body, 17 post attachment member, 20 corner chamfer, 21 ventilation unit, 22 frame body, 23 metal frame material, 24 resin frame material, 28 ventilation opening frame, 29 outer shoji screen, 30 inner shoji screen, 33 metal frame material, 33b2 gutter-shaped portion, 34 resin frame material, 36 vertical frame attachment member, 44a upper connecting portion, 45a mounting portion, 48a lower connecting portion, 50 communication port, 56 recess, 58 laminated film

Claims

1. A fitting comprising an opening frame, a door body that slides within the opening frame, and a ventilation unit attached to the door body, The door body has a metal door frame, The opening frame has a mullion that engages with the door frame when the door body is in the fully closed position, The mullion is The corner of the outer corner of the frame inner visible surface is cut out to form a recess between the door body and the corner chamfer; a resin upright attachment member provided to cover the surface of the chamfered portion; and The ventilation unit comprises: A vertical frame connected to the inner surface of the frame of the joint frame; a vertical frame attachment member attached to the vertical frame to form a visible surface of the vertical frame on the interior side and to form an inner surface of the recess together with the mullion attachment member; have A fixture characterized by:

2. The fitting according to claim 1, The width of the joint frame is smaller than the width of the mullion, When the door body is in the fully closed position, the inner frame surface of the door frame stile is positioned at a position offset to the outside of the frame from the inner frame surface of the upright attachment member. A fixture characterized by:

3. The fitting according to claim 1 or 2, When the door body is in a fully closed position, the recess has a first inner surface facing the outside of the room, a second inner surface facing the inside of the frame of the opening frame, and a third inner surface facing the inside of the room, The first inner surface and the second inner surface are formed by the upright attachment member, and the third inner surface is formed by the vertical frame attachment member. A fixture characterized by:

4. The fitting according to any one of claims 1 to 3, The door body has a door end frame, The recessed portion is open to face the inner side of the opening frame. A fixture characterized by:

5. The fitting according to any one of claims 1 to 4, The upright attachment member has a pocket portion for attaching a weatherstripping material that contacts the interior surface of the door body, The pocket portion is disposed at a position that does not form the inner surface of the recess portion. A fixture characterized by:

6. The fitting according to any one of claims 1 to 5, The frame frame has a laminate film on its outer surface and on its outer surface, and the laminate film is not provided on its inner surface and on its inner surface. A fixture characterized by:

Images