Doors and fittings

Abstract

To provide a joinery capable of ensuring reliable airtightness by continuously connecting an airtight line of a meeting stile part to an airtight material of upper and lower frames without being divided.SOLUTION: There is provided a joinery that is provided in the opening and is housed in a frame that framed all four sides, and is provided with a double door stile 100 that has a front door stile 2 and a rear door stile 3. A rear-opening stile 33 of the rear-opening stile door 3 is provided with a combination airtight material 5 extending in the vertical direction Y. The stile airtight material 5 is provided in each of the upper frame and the lower frame of the frame and is provided in close contact with a horizontal airtight material extending in the horizontal direction. The front-opening stile 23 of the front-opening stile door 2 is configured to be closed by coming in contact with the rear-opening side door stop 42 of the rear-opening stile 33 of the rear door stile 3, with a fin part 522 of the stile airtight material 5 being sandwiched.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present disclosure relates to fittings.

Background Art

[0002] Conventionally, in fittings provided with a double-opening frame door having a front-opening frame door and a rear-opening frame door, as shown in Patent Document 1 for example, an airtight material provided in a summons frame is cut in the middle, and an airtight piece is attached from the cut portion.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a double-opening frame door as in the prior art, a gap is likely to occur at the connection portion between the summons frame and the end cap, and there is a problem that stable airtightness and watertightness cannot be ensured.

[0005] The present disclosure provides a fitting capable of ensuring reliable airtightness by continuously connecting the airtight line of the summons portion without being interrupted with respect to the airtight materials of the upper and lower frames.

Means for Solving the Problems

[0006] A fitting according to an aspect of the present disclosure is a fitting provided with a double-opening frame door having a front-opening frame door and a rear-opening frame door, which is housed in a frame body framed on four sides and provided at an opening, wherein the frame body is composed of a metal frame and a resin frame, and the front-opening frame body of the front-opening frame door and the rear-opening frame body of the rear-opening frame door are each composed of a metal profile and a resin profile. The front-opening meeting stile of the front-opening frame and the rear-opening meeting stile of the rear-opening frame each have the resin profile on the indoor side. Front After writingThe opening door frame is provided with a meeting stile airtight material and a metal rear-opening door stop that protrudes from the front-opening door frame side along the left-right direction, and a resin cover member is provided on the indoor side of the rear-opening door stop. The cover member is positioned so as to overlap the resin profile of the front-opening meeting frame and the resin profile of the rear-opening meeting frame in the indoor / outdoor direction when the front-opening frame door and the rear-opening frame door are closed. [Brief explanation of the drawing]

[0007] [Figure 1] This is a perspective view of a double-leaf framed door according to one embodiment of the present disclosure, as seen from the outside. [Figure 2] Figure 1 shows a cross-sectional view along line AA, which is a vertical cross-sectional view of a double-leaf door frame. [Figure 3] Figure 1 shows a cross-sectional view along line BB, which is a horizontal cross-sectional view of a double-leaf door frame. [Figure 4] Figure 1 shows a cross-sectional view of the CC line, which is a longitudinal cross-sectional view of the meeting stile portion. [Figure 5] This is a magnified view of the main part of the area indicated by arrow D in Figure 3. [Figure 6] Figure 5 shows the state of the front-opening framed door before it is closed. [Modes for carrying out the invention]

[0008] Hereinafter, a joinery according to one embodiment of this disclosure will be described using drawings as an example, with a double-leaf framed door.

[0009] As shown in Figures 1 to 3, the double-leaf framed door 100 (joinery) according to this embodiment is installed in an exterior wall opening of the exterior wall of a building. The double-leaf framed door 100 comprises a frame 1, a front-opening framed door 2, and a rear-opening framed door 3. The front-opening framed door 2 is provided with a front door stopper 41, which will be described later, so that after the front-opening framed door 2 is opened to the outside, the rear-opening framed door 3 can be opened to the outside. The front-opening framed door 2 and the rear-opening framed door 3 each house double-glazed glass panes 29 and 39, respectively.

[0010] In the following explanation, the direction connecting the outdoor side and the indoor side (the direction perpendicular to the outer wall forming the aforementioned opening of the building, the left-right direction in Figure 2) will be referred to as the indoor-outdoor direction Z, the horizontal direction connecting the left and right sides when viewed from the indoor-outdoor direction Z will be referred to as the left-right direction X, and the direction perpendicular to the left-right direction X when viewed from the indoor-outdoor direction Z (the up-down direction in Figure 2) will be referred to as the up-down direction Y. Furthermore, each component and part constituting the double-leaf door 100 will be described using the indoor-outdoor direction Z, the left-right direction X, and the up-down direction Y in the position in which they are installed in the aforementioned opening.

[0011] The frame 1 is formed in a four-sided frame shape. The frame 1 has an upper frame 11, a lower frame 12, and a pair of vertical frames 13. The frame 1 may also be formed in a three-sided frame shape, having only the upper frame 11 and the pair of vertical frames 13, without the lower frame 12.

[0012] The upper frame 11 and the lower frame 12 extend in the left-right direction X. As shown in Figures 2 and 4, the upper frame 11 has a horizontal airtight seal 15 that extends along the length direction (left-right direction X) of the upper frame 11 on the surface 11a of the upper frame 11 that is located in the middle part in the indoor-outdoor direction Z and faces outwards. The horizontal airtight seal 15 for the upper frame 11 is in liquid-tight contact with the indoor side surface of the front-opening frame door 2 (upper frame 21, described later) and the indoor side surface of the rear-opening frame door 3 (upper frame 21, described later) when the front-opening frame door 2 and the rear-opening frame door 3 are closed. The lower frame has a lower airtight seal 15 that extends along the length direction (left-right direction X) of the lower frame 12 on the surface 12a of the lower frame 12 that is located in the middle part in the indoor-outdoor direction Z and faces outwards. The horizontal airtight seal 16 for the lower frame 12 is in liquid-tight contact with the indoor side surfaces of the front-opening frame door 2 and the rear-opening frame door 3 when the front-opening frame door 2 and the rear-opening frame door 3 are closed.

[0013] As shown in Figure 3, the vertical frames 13 extend in the vertical direction Y. Each vertical frame 13 connects the end of the upper frame 11 to the end of the lower frame 12. In this embodiment, the frame body 1 is made up of a composite frame consisting of a metal frame such as aluminum and a resin frame. Of the pair of vertical frames 13, the vertical frame 13 on the left side (the side where the front-opening framed door 2 is located) when viewed from the indoor side is sometimes referred to as vertical frame 13A, and the vertical frame 13 on the right side (the side where the rear-opening framed door 3 is located) is sometimes referred to as vertical frame 13B.

[0014] The front-opening framed door 2 is positioned inside the frame 1 on one side in the left-right direction X. The rear-opening framed door 3 is positioned inside the frame 1 on the other side in the left-right direction X. In this embodiment, when viewed from the inside, the front-opening framed door 2 is positioned on the left side and the rear-opening framed door 3 is positioned on the right side. However, when viewed from the inside, the front-opening framed door 2 may be positioned on the right side and the rear-opening framed door 3 may be positioned on the left side.

[0015] The front-opening framed door 2 is attached to the vertical frame 13A via hinges 16 shown in Figure 3 so that it can be opened and closed on the outside side (see Figure 1). As shown in Figure 1, the front-opening framed door 2 has a front-opening frame body 20 and a front-opening panel 29. The front-opening frame body 20 is formed in a four-sided frame shape. The front-opening panel 29 is fitted inside the front-opening frame body 20.

[0016] As shown in Figure 1, the front-opening frame body 20 includes a front-opening upper frame 21, a front-opening lower frame 22, a front-opening meeting frame 23, and a front-opening hinge frame 24. In this embodiment, the front-opening frame body 20 is made of a composite material consisting of a metal profile such as aluminum and a resin profile.

[0017] The front-opening upper frame 21 and the front-opening lower frame 22 extend in the left-right direction X. The front-opening summons frame 23 and the front-opening hanging-end frame 24 extend in the up-down direction Y. The front-opening summons frame 23 is arranged on the summons side, and the front-opening hanging-end frame 24 is arranged on the hanging-end side. The front-opening summons frame 23 and the front-opening hanging-end frame 24 connect the end of the front-opening upper frame 21 and the end of the front-opening lower frame 22. A door closer (not shown) is provided between the front-opening upper frame 21 and the upper frame 11. The door closer has a function of automatically closing the opened front-opening frame door 2.

[0018] A handle 27 is provided on the front-opening summons frame 23. By the handle 27, the opening and closing operation of the front-opening frame door 2 can be performed. As the handle 27, a so-called push-pull handle, a doorknob like a grip ball, etc. can also be adopted.

[0019] In the middle in the up-down direction Y of the front-opening door front plate portion 233 (see FIG. 3) of the front-opening summons frame 23 described later, a latch (not shown) is provided so as to be able to protrude and retract on the side of the rear-opening frame door 3. When the latch protrudes and is locked to a latch receiver (not shown) of the rear-opening frame door 3 described later, the front-opening frame door 2 and the rear-opening frame door 3 can be temporarily held. A locking device 28 such as a deadbolt is provided on the front-opening summons frame 23. By the locking device 28, the front-opening frame door 2 and the rear-opening frame door 3 can be locked and unlocked.

[0020] The rear-opening frame door 3 is attached to the vertical frame 13B so as to be openable and closable to the outdoor side via the hinge 17 shown in FIG. 3. The rear-opening frame door 3 has a rear-opening frame body 30 and a rear-opening facing material 39. The rear-opening frame body 30 is formed in a square frame shape. The rear-opening facing material 39 is fitted into the rear-opening frame body 30.

[0021] As shown in FIG. 1, the rear-opening frame body 30 has a rear-opening upper frame 31, a rear-opening lower frame 32, a rear-opening summons frame 33, and a rear-opening hanging-end frame 34. In the present embodiment, the rear-opening frame body 30 is composed of a composite material made of a metal profile such as aluminum and a resin profile.

[0022] The rear-opening upper frame 31 and rear-opening lower frame 32 extend in the left-right direction X. The rear-opening meeting frame 33 and rear-opening hinge frame 34 extend in the up-down direction Y. The rear-opening meeting frame 33 is located on the meeting side, and the rear-opening hinge frame 34 is located on the hinge side. The rear-opening meeting frame 33 and the rear-opening hinge frame 34 connect the end of the rear-opening upper frame 31 and the end of the rear-opening lower frame 32.

[0023] The rear-opening door front plate portion 333 (see Figure 3) of the rear-opening meeting stile 33 is provided with a latch receiver (not shown) that is recessed inward. The latch of the front-opening meeting stile 23 can be locked into the latch receiver. As shown in Figure 3, when the doors are closed, there is a gap S in the left-right direction X between the front-opening meeting stile 23 of the front-opening framed door 2 and the rear-opening meeting stile 33 of the rear-opening framed door 3.

[0024] The following describes the meeting stile airtight material 5 and auxiliary airtight material 6 provided on the rear opening meeting stile 33 of the rear opening frame door 2.

[0025] First, the configuration of the front-opening meeting stile 23 will be explained. As shown in Figures 3 and 5, the front-opening meeting stile 23 has a front-opening outdoor side panel 231, a front-opening indoor side panel 232, a front-opening door front panel 233, and a front-opening intermediate panel 234.

[0026] The front-opening outdoor side panel 231 is formed in a plate shape. The surface of the front-opening outdoor side panel 231 faces in the indoor / outdoor direction Z. The front-opening indoor side panel 232 is formed in a plate shape. The surface of the front-opening indoor side panel 232 faces in the indoor / outdoor direction Z. The front-opening door edge panel 233 is formed in a plate shape. The surface of the front-opening door edge panel 233 faces in the left / right direction X. The front-opening door edge panel 233 connects the door edge end of the front-opening outdoor side panel 231 and the door edge end of the front-opening indoor side panel 232.

[0027] As shown in Figure 3, the front-opening intermediate plate section 234 is formed in a plate shape. The surface of the front-opening intermediate plate section 234 faces in the left-right direction X. The front-opening intermediate plate section 234 connects the end of the front-opening outdoor side plate section 231 opposite to the door edge side and the end of the front-opening indoor side plate section 232 opposite to the door edge side. The interior enclosed by the front-opening outdoor side plate section 231, the front-opening indoor side plate section 232, the front-opening door edge plate section 233, and the front-opening intermediate plate section 234 has a rectangular shape in horizontal cross-section and is a hollow space extending in the vertical direction Y.

[0028] A door stopper 41 is provided at the corner between the front-opening outdoor side panel 231 and the front-opening door edge panel 233 (see Figure 1). The door stopper 41 extends over approximately the entire length of the front-opening meeting stile 23 in the vertical direction Y. The door stopper 41 has a first surface portion 411 and a second surface portion 412. The first surface portion 411 extends outward from the corner between the front-opening outdoor side panel 231 and the front-opening door edge panel 233. The first surface portion 411 is formed in a plate shape, and its surface faces in the left-right direction X. The second surface portion 412 extends from the outdoor end of the first surface portion 411 along the width direction toward the rear-opening frame door 3. The second surface portion 412 is formed in a plate shape, and its surface faces in the indoor-outdoor direction Z.

[0029] Next, the configuration of the rear-opening meeting stile 33 will be described. As shown in Figure 3, the rear-opening meeting stile 33 has a rear-opening outdoor side panel 331, a rear-opening indoor side panel 332, a rear-opening door edge panel 333, and a rear-opening intermediate panel 334.

[0030] The rear-opening outdoor side panel 331 is formed in a plate shape. The surface of the rear-opening outdoor side panel 331 faces the indoor / outdoor direction Z. The rear-opening indoor side panel 332 is formed in a plate shape. The surface of the rear-opening indoor side panel 332 faces the indoor / outdoor direction Z. The rear-opening door edge panel 333 is formed in a plate shape. The surface of the rear-opening door edge panel 333 faces the left / right direction X. The rear-opening door edge panel 333 connects the door edge end of the rear-opening outdoor side panel 331 and the door edge end of the rear-opening indoor side panel 332.

[0031] The rear-opening intermediate plate section 334 is formed in a plate shape. The surface of the rear-opening intermediate plate section 334 faces in the left-right direction X. The rear-opening intermediate plate section 334 connects the end of the rear-opening outdoor side plate section 331 opposite to the door edge side and the end of the rear-opening indoor side plate section 332 opposite to the door edge side. The interior enclosed by the rear-opening outdoor side plate section 331, the rear-opening indoor side plate section 332, the rear-opening door edge plate section 333, and the rear-opening intermediate plate section 334 has a rectangular shape in horizontal cross-section and is a hollow space extending in the vertical direction Y.

[0032] As shown in Figure 5, the rear-opening indoor side panel 332 has a rear-opening side door stop 42 that protrudes from the rear-opening door front panel 333 in the left-right direction X toward the front-opening framed door 2. The end 332e of the rear-opening indoor side panel 332 has a locking piece 332f that is bent toward the outside. Slightly further outward than the indoor side end of the rear-opening door front panel 333, there is a locking piece 333e that protrudes toward the front-opening framed door 2 and is bent toward the indoor side. The base 51 of the meeting stile airtight material 5 is locked between the locking pieces 332f and 333e.

[0033] The rear-opening door stopper 42 is provided with a pair of locking pieces 421 and 422 that protrude outwards at the end on the front-opening frame door 2 side. The first locking piece 421 protrudes outwards and is bent towards the right side of the paper in the left-right direction X. The second locking piece 422 is positioned to the right of the first locking piece 421 with a gap between them, protrudes outwards and is bent towards the left side of the paper in the left-right direction X. The base 61 of the auxiliary airtight material 6 is locked between the pair of locking pieces 421 and 422. On both sides of the rear-opening door stopper 42 in the left-right direction X, there are fitting recesses 423 for attaching a cover member 43, which will be described later.

[0034] As shown in Figures 5 and 6, the meeting stile airtight material 5 has a base portion 51 that is locked to the rear-opening door front plate portion 333, and an airtight portion 52 that extends from the base portion 51 toward the front-opening meeting stile frame 23 so as to be interposed in the gap S. The airtight portion 52 of the meeting stile airtight material 5 has a roughly triangular shape in horizontal cross-section and is formed to be hollow inside. The airtight portion 52 has a band-shaped fin portion 522 that protrudes further toward the front-opening frame door 2 side from the first apex portion 521a on the interior side of the triangular portion 521.

[0035] The fin portion 522 extends to a position where, in the closed state, it overlaps with the front-opening indoor-side panel portion 232 of the front-opening meeting stile 23 in the indoor-outdoor direction Z. The fin portion 522 is sandwiched between at least the front-opening indoor-side panel portion 232 of the front-opening meeting stile 23 and the rear-opening side door stop 42 of the rear-opening meeting stile 33.

[0036] In the airtight section 52, an inclined surface 523 is provided on the second apex 521b on the outdoor side of the triangular section 521, on the side of the front-opening frame door 2. The inclined surface 523 forms an inclined surface that gradually extends outward from the second apex 521b toward the front-opening meeting frame 23. By providing the inclined surface 523, rainwater from the outdoor side flows downward along the outdoor surface, preventing rainwater from flowing into the indoor side (towards the fin section 522) beyond the inclined surface 523.

[0037] As shown in Figure 4, the meeting stile seal 5 extends in the vertical direction Y. The upper end 5a of the meeting stile seal 5 is in liquid-tight contact with a horizontal seal 15 that is provided on the upper frame 11 of the frame 1 and extends in the left-right direction X. The lower end 5b of the meeting stile seal 5 is in liquid-tight contact with a horizontal seal 16 that is provided on the lower frame 12 of the frame 1 and extends in the left-right direction X.

[0038] As shown in Figures 5 and 6, the auxiliary airtight material 6 has a base portion 61 that is locked between a pair of locking pieces 421 and 422 of the rear-opening side door stop 42, and an airtight portion 62 that is curved to bulge outwards from the base portion 61 toward the outside side (towards the front-opening indoor side panel portion 232 of the front-opening meeting stile 23).

[0039] The airtight portion 62 at the outdoor end of the auxiliary airtight material 6 is formed in a fin shape that is curved in a roughly semicircular shape in horizontal cross-section, with a convex curved surface facing the outside. The auxiliary airtight material 6 extends in the vertical direction Y. The airtight portion 62 has one end 62a integrally connected to the base portion 61, and the other end 62b is a free end, and moves closer to and away from the base portion 61 in the indoor / outdoor direction Z due to elastic deformation when it comes into contact with the meeting stile airtight material 5. In other words, the airtight portion 62 is provided so as to be elastically deformable in the indoor / outdoor direction Z between the rear-opening side door stop 42 and the fin portion 522 of the meeting stile airtight material 5. As shown in Figure 6, the airtight portion 62 is elastically deformed and crushed in the indoor / outdoor direction Z by sandwiching the fin portion 522 between the front-opening indoor side panel portion 232 of the front-opening meeting stile 23, from before the front-opening frame door 2 is closed, until it reaches the closed state shown in Figure 5.

[0040] When the front-opening framed door 2 and the rear-opening framed door 3 are closed, the fin portion 522 of the meeting stile airtight material 5 is sandwiched between the front-opening indoor side panel portion 232 of the front-opening meeting stile 23 and the rear-opening side door stop 42 (auxiliary airtight material 6 in this embodiment) of the rear-opening meeting stile 33. This prevents wind and rain from passing between the front-opening indoor side panel portion 232 and the rear-opening side door stop 42 of the front-opening framed door 2 and blowing into the interior.

[0041] As shown in Figures 5 and 6, a cover member 43, which is roughly U-shaped in horizontal cross-section and covers the indoor side of the rear-opening door stop 42, is detachably provided. The cover member 43 is made of resin material, is positioned with its opening facing the outdoors, and extends in the vertical direction Y. The cover member 43 has an indoor cover plate 431 facing the indoor side, and side cover plates 432 extending outwards from both the left and right ends of the indoor cover plate 431. The outdoor ends of the pair of side cover plates 432 are provided with cover locking portions 433 that fit into fitting recesses 423 of the rear-opening door stop 42. By fitting the pair of cover locking portions 433 of the cover member 43 into the corresponding fitting recesses 423 of the rear-opening door stop 42, the cover member 43 can be attached to the indoor side of the rear-opening door stop 42, and the rear-opening door stop 42 is covered from the indoor side by the cover member 43. The metal rear-opening side door stopper 42 and the resin cover member 43 constitute a so-called smoke baffle. Since this smoke baffle is constructed by attaching the resin cover member 43 to the metal rear-opening side door stopper 42, it has a structure that is excellent in terms of heat insulation and condensation prevention.

[0042] Next, the operation of the double-leaf framed door 100 according to this embodiment will be described in detail with reference to the drawings. As shown in Figures 3 and 4, in the double-leaf framed door 100 according to this embodiment, a meeting stile airtight material 5 provided on the front meeting stile 23 of the rear-opening framed door 3 and extending in the vertical direction Y is in liquid-tight contact with horizontal airtight materials 15 and 16 provided on the upper frame 11 and lower frame 12, respectively. The front meeting stile 23 of the front-opening framed door 2 can be closed by abutting against the rear-opening side door stop 42 of the rear-opening meeting stile 33 of the rear-opening framed door 3 while the meeting stile airtight material 5 is sandwiched between them. In this embodiment, by continuously connecting the airtight lines of the front-opening framed door 2 and the rear-opening framed door 3 with respect to the horizontal airtight material 15 of the upper frame 11 and the horizontal airtight material 16 of the lower frame 12 without interruption, reliable airtightness can be ensured.

[0043] In this embodiment, a fin portion 522 is formed on the portion of the meeting stile airtight material 5 that is sandwiched between at least the front-opening meeting stile 23 and the rear-opening meeting stile 33. Since the fin portion 522 is formed in a strip shape, it is easy to sandwich it between the front-opening meeting stile 23 and the rear-opening meeting stile 33 in the indoor-outdoor direction Z, and more reliable airtightness can be ensured at both portions of the meeting stiles 23 and 33 when the front-opening frame door 2 is closed.

[0044] In this embodiment, an auxiliary airtight material 6, which can be elastically deformed in the indoor-outdoor direction Z, is provided at the rear-opening side door stop 42 of the rear-opening meeting frame 33 between the meeting airtight material 5 and the auxiliary airtight material 6. When the front-opening frame door 2 is closed, the fin portion 522 of the meeting airtight material 5 is sandwiched between the front-opening meeting frame 23 and the airtight portion 62 of the auxiliary airtight material 6. At this time, the auxiliary airtight material 6 is pressed by the fin portion 522 and deforms elastically. In this way, in the double-opening frame door 100 of this embodiment, stable airtightness is ensured by the elastic deformation of the auxiliary airtight material 6 even in the intermediate part of the meeting frame in the vertical direction Y, where gaps are likely to occur due to slight warping of the members that may occur in the front-opening frame door 2 or the rear-opening frame door 3.

[0045] In this embodiment, the front-opening meeting stile 23 of the front-opening framed door 2 is in contact with the rear-opening meeting stile 33 (here, the rear-opening side door stop 42) of the rear-opening framed door 3 while the meeting stile airtight material 5 is sandwiched between them. As a result, the fin member provided on the outdoor side of the airtight material at the meeting portion of the rear-opening framed door 3 is unnecessary when opening and closing, and there is an advantage in that the problem of the front-opening framed door 2's meeting stile contacting this outdoor-side fin member, which would make the door opening and closing operation heavy, can be eliminated.

[0046] The embodiments of the building components described herein have been explained above, but this disclosure is not limited to the embodiments described above.

[0047] For example, in the above embodiment, the fin portion 522 of the meeting stile airtight material 5, which is sandwiched between the front-opening meeting stile 23 and the rear-opening meeting stile 33, is formed in a strip shape. However, it is not limited to being in such a strip shape, and other shapes are also acceptable. For example, it may be curved and bulge out in the indoor / outdoor direction Z, similar to the auxiliary airtight material 6 described above. The point is that the front-opening meeting stile 23 of the front-opening framed door 2 should abut against the rear-opening meeting stile 33 of the rear-opening framed door 3 with the meeting stile airtight material 5 sandwiched between them to close the door.

[0048] In this embodiment, the rear-opening meeting stile 33 is configured to have an auxiliary airtight material 6 that can be elastically deformed in the indoor / outdoor direction Z between it and the meeting stile airtight material 5, but it is also possible to omit this auxiliary airtight material 6.

[0049] Furthermore, it is possible to replace the components in the above-described embodiments with well-known components as appropriate, without departing from the spirit of this disclosure. [Explanation of Symbols]

[0050] 100... Double-leaf framed door (joinery), 1... Frame, 2... Front-opening framed door, 3... Rear-opening framed door, 5 ...Meeting joint airtight material, 6...Auxiliary airtight material, 11...Upper frame, 12...Lower frame, 13, 13A, 13B...Vertical Frame, 15, 16... Horizontal airtight material, 23... Front-opening meeting stile, 33... Rear-opening meeting stile, 42... Rear Door stopper on the opening side, 51...base, 52...airtight part, 61...base, 62...airtight part, 522...fin , X...left / right direction, Y...up / down direction, Z...indoor / outdoor direction

Claims

1. A door fitting that is installed in an opening, housed in a frame that frames all four sides, and has a double-leaf door with a front-opening frame door and a rear-opening frame door, The aforementioned frame consists of a metal frame and a resin frame. The front-opening frame of the aforementioned front-opening framed door and the rear-opening frame of the aforementioned rear-opening framed door are made of a metal profile and a resin profile, respectively. The front-opening meeting stile of the front-opening frame and the rear-opening meeting stile of the rear-opening frame each have the resin profile on the indoor side. The rear-opening meeting stile is provided with a meeting stile airtight material and a metal rear-opening side door stop that protrudes from the front-opening door stile side in the left-right direction. A resin cover member is provided on the indoor side of the rear-opening door stop. The cover member is characterized in that, when the front-opening framed door and the rear-opening framed door are closed, it is positioned to overlap with the resin profile of the front-opening meeting frame and the resin profile of the rear-opening meeting frame in the indoor / outdoor direction.

2. The rear-opening side door stop protrudes toward the rear-opening frame door, The joinery according to claim 1, wherein the cover member is positioned on the indoor side of the rear-opening framed door.

3. The joinery according to claim 1 or 2, wherein the meeting stile airtight material extends in the vertical direction and is provided in contact with horizontal airtight materials that are provided on the upper frame and lower frame of the frame and extend in the horizontal direction.

4. The door fitting according to any one of claims 1 to 3, wherein the meeting stile airtight material is sandwiched between the front-opening meeting stile and the rear-opening meeting stile.

5. The door fitting according to claim 4, wherein the meeting stile airtight material is formed in the shape of a plate of the front-opening meeting stile frame, and is sandwiched between the front-opening indoor side plate portion, which faces in the indoor / outdoor direction, and the rear-opening side door stop.

6. The door fitting according to any one of claims 1 to 5, wherein the rear-opening side door stop is provided with an auxiliary airtight material that can be elastically deformed in the indoor-outdoor direction between it and the meeting stile airtight material.

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