JP7815052B2 - opening device - Google Patents

Description

The present invention relates to a window (opening device) to be placed in a building opening.

Windows equipped with smoke deflectors at the joint between the inner and outer shoji screens are known.

JP 2013-224518 A

In windows equipped with a smoke deflector at the joint between the inner and outer shoji screens, even greater waterproofing is required.
To improve waterproofing performance in a window provided with a smoke deflector at the joining portion of an inner shoji screen and an outer shoji screen.

In one embodiment, the window comprises a frame, an inner screen, and an outer screen, and the outer screen's sash frame has a smoke deflector piece attached to the interior side of the room and a protrusion formed by extending the outer side wall of the sash frame toward the interior of the room, and the smoke deflector piece and protrusion piece of the outer screen have notches at their upper ends, and the outer screen sash frame is an opening device provided with a water-stopping member that blocks the notched portion of the protrusion piece.

This embodiment improves the waterproofing performance of windows equipped with smoke deflectors at the joint between the inner and outer shoji screens.

FIG. 1 is an interior view of a window (opening device) according to an embodiment. FIG. 2 is a longitudinal cross-sectional view of a window according to an embodiment. These are cross-sectional views of a window in one embodiment, where (a) is an overall cross-sectional view, (b) is a cross-sectional view of the inner window frame, and (c) is a cross-sectional view of the outer window frame. These are diagrams of the sash joint frame of the inner sash of the window of the first embodiment, (a) is a diagram before the inner sash joint water stop label (water stop member) and end cap are attached, (b) is a diagram after the inner sash joint water stop label has been attached, and (c) is a diagram after the inner sash joint water stop label and end cap have been attached. 1A and 1B are diagrams of the outer window screen door sash of the first embodiment, where (a) is a diagram before the outer window screen water stop label (water stop member) is attached, and (b) is a diagram after the outer window screen water stop label has been attached. FIG. 2 is a perspective view of the window joint portion of the first embodiment as seen from above. 10A and 10B are diagrams of a water-stopping member used in a window of a second embodiment, in which (a) is an oblique view, (b) and (d) are views seen from the inner periphery, and (c) and (e) are views seen from above. 10A and 10B are views of the outer window screen joint portion of the second embodiment viewed from the outer periphery, where (a) is a view before the water-stopping parts are installed, and (b) is a view after the water-stopping parts are installed. 10A and 10B are diagrams showing the process of installing a water-stopping part (water-stopping member), and FIG. 10C is a diagram showing the state after the water-stopping part has been installed. 10A and 10B are diagrams of the inner sliding door frame of another embodiment of a window, where (a) is a diagram before the outer sliding door water stop label (water stop member) is attached, and (b) is a diagram after the outer sliding door water stop label has been attached. 10A and 10B are diagrams showing the process of installing a water-stopping part (water-stopping member), and FIG. 10C is a diagram showing the state after the water-stopping part has been installed.

One embodiment of the opening device will be explained with reference to the drawings, using the example of a sliding window in which an inner and outer sliding screen are supported on the inner periphery of a frame so that they can be slid freely apart.

-Overall structure-
As shown in Figure 1, the window of this embodiment is formed by a frame body 1 made of an upper frame 11, a lower frame 12, and left and right vertical frames 13, 14, all of which are made of a metal material such as aluminum alloy, assembled around the inner periphery of the frame body 1, and inner and outer shoji screens 2, 3, each made of an upper frame 21, 31, a lower frame 22, 32, and left and right vertical frames 23, 24, 33, 34, all of which are made of a metal material such as aluminum alloy, assembled around the inner periphery, and panel bodies fitted into the inner periphery, are supported so that they can be slid freely.

(Frame)
As shown in Figure 2, the upper frame 11 that constitutes the frame body 1 has a concave wall 11a that is arranged on the inner periphery of the opening of the building, an indoor-side concave wall 11b that is connected to the indoor-side end of the concave wall 11a, an outdoor-side concave wall 11c that is connected to the outdoor-side end of the concave wall 11a, an intermediate wall 11d that extends downward from the inner periphery near the center in the concave direction of the concave wall 11a, and an outer upper rail 11e that extends downward from between the intermediate wall 11d and the outdoor-side concave wall 11c on the inner periphery of the concave wall 11a.

The upper frame 11 has airtight material s11 attached to the outside lower end of the interior-side visible wall 11b, and airtight material s12 attached to the outside lower end of the intermediate wall 11d.At least when the inner and outer shoji screens 2, 3 are closed, these abut against the interior side of the upper frame 21 of the inner shoji screen 2 and the interior side of the upper frame 31 of the outer shoji screen 3, respectively, forming an airtight line.

The upper frame 11 is provided with a water-repellent piece 8 in the center in the viewing direction (left and right) to block water that seeps in between the intermediate wall 11d and the joining frames 23, 34 of the inner and outer shoji screens 2, 3.

As shown in Figure 2, the lower frame 12 that constitutes the frame body 1 comprises a lower frame main body 12a that is positioned on the inner periphery of the building opening, an indoor hollow section 12b that extends upward from the indoor side of the lower frame main body 12a, an indoor visible wall 12c that extends upward from the indoor side end of the upper surface of the indoor hollow section 12b, an outdoor visible wall 12d that extends upward from the outdoor side end of the lower frame main body 12a, an airtight material retaining piece 12e that extends from the outdoor side end of the upper surface of the indoor hollow section 12b to the outside, an inner lower rail 12f that extends upward from the outdoor side end of the upper surface of the indoor hollow section 12b, and an outer lower rail 12g that extends upward from the indoor side inner periphery of the lower frame main body 12a.

The lower frame 12 has airtight material s21 attached to the exterior side of the upper end of the interior visible wall 12c, and airtight material s22 attached to the exterior end of the airtight material retaining piece 12e.At least when the inner and outer shoji screens 2, 3 are closed, the airtight material s21 abuts against the interior side of the bottom frame 22 of the inner shoji screen 2 and the interior side of the bottom frame 32 of the outer shoji screen 3, respectively, forming an airtight line.

As shown in Figure 3, the left vertical frame 13 that constitutes the frame body 1 has a concealed wall 13a that is positioned on the inner periphery of the building opening, an indoor-side concealed wall 13b that extends in the concealed direction from the indoor-side end of the concealed wall 13a, an outdoor-side concealed wall 13c that extends in the concealed direction from the outdoor-side end of the concealed wall 13a, an intermediate concealed wall 13d that extends inward from near the center of the concealed wall 13a in the concealed direction, and a pull-in piece 13e that extends inward from the indoor-side inner periphery of the concealed wall 13a.

The left vertical frame 13 has airtight material s31 installed on the exterior side of the intermediate visible wall 13d, which abuts against the interior side of the left vertical frame 33 of the outer shoji screen 3 when the outer shoji screen 3 is closed, forming an airtight line.

As shown in Figure 3, the right vertical frame 14 that constitutes the frame body 1 has a concealed wall 14a that is positioned on the inner periphery of the building opening, an indoor-side concealed wall 14b that extends in the concealed direction from the indoor-side end of the concealed wall 14a, an outdoor-side concealed wall 14c that extends in the concealed direction from the outdoor-side end of the concealed wall 14a, an intermediate concealed wall 14d that extends inward from near the center of the concealed wall 14a in the concealed direction, and a pull-in piece 14e that extends inward from the indoor-side inner periphery of the concealed wall 14a.

The right vertical frame 14 has airtight material s41 attached to the outside of the interior facing wall 14b, which abuts against the interior side of the right vertical frame 24 of the inner shoji screen 3 when the inner shoji screen 2 is closed, forming an airtight line.

(Shoji screen)
As shown in Figure 2, the upper frame 21 that constitutes the inner shoji screen 2 has a panel opening 21a on the inner periphery and is guided between the interior facing wall 11b and the intermediate wall 11d of the upper frame 11.
The lower frame 22 that constitutes the inner shoji screen 2 has a panel opening 22a on the inner periphery and a door roller on the outer periphery, and is guided by the inner lower rail 12f of the lower frame 12.

As shown in Figure 3(b), the left vertical frame (inner joint frame) 23 that constitutes the inner shoji screen 2 has a hollow section main body 23a, a panel opening 23b that continues to the inner periphery of the hollow section main body 23a, and a smoke-reflecting piece 23d that extends from the exterior side of the exterior wall 23e at the position of the partition wall 23c that separates the hollow section main body 23a and the panel opening 23b.
The left vertical frame 23 has an airtight material mounting portion 23f on the outdoor surface of the outdoor wall 23e, to which airtight material s51 is attached, and when the inner and outer screens 2 and 3 are closed, it abuts against the indoor side of the joint frame 34 of the outer screen 3 to form an airtight line.

As shown in Figure 3, the right vertical frame (door edge frame) 24 that constitutes the inner shoji screen 2 has a panel opening 24a on the inner periphery and a pull-in member on the outer periphery.

As shown in Figure 2, the upper frame 31 that constitutes the outer shoji screen 3 has a panel opening 31a on the inner side and is guided by the outer upper rail 11e of the upper frame 11.
The lower frame 32 that constitutes the outer shoji screen 3 has a panel opening 32a on the inner periphery and a door roller on the outer periphery, and is guided by the outer lower rail 12g of the lower frame 12.

As shown in Figure 3, the left vertical frame (door edge frame) 33 that constitutes the outer shoji screen 3 has a panel opening 33a on the inner periphery and a pull-in member on the outer periphery.

As shown in Figure 3(c), the right vertical frame (outer joint frame) 34 that constitutes the outer shoji screen 3 has a hollow body 34a, a panel opening 34b that continues to the inner periphery of the hollow body 34a, a smoke deflector 34c that extends from the interior side of the hollow body 34a toward the interior, and a protrusion 34e that is formed by the outer peripheral side wall 34d that constitutes the hollow body 34a extending toward the interior.

-First embodiment-
The window of this embodiment improves the waterproof performance of the joint by providing a water-stopping label (water-stopping member) at the joint between the inner shoji screen 2 and the outer shoji screen 3.
In this embodiment, the water-stop label (label-like) for the window refers to a small, thin sheet-like member, and is not necessarily limited to a label with some kind of marking on it.
The waterproof structure of the window joint of this embodiment will be further explained below.

(Waterproof structure of inner shoji screen)
The joint frame 23 of the inner shoji screen 2 in this embodiment is provided with an inner joint waterproof label 71 and an end cap 5 at the upper end, thereby improving waterproof performance.

As shown in Figure 4(a), the inner shoji screen 2's door frame 23 has a notch at the top end of the smoke deflector 23d and airtight material mounting portion 23f formed on the exterior side, and the upper end of the exterior wall 23e of the hollow section main body 23a is cut out from the partition wall 23c to the airtight material mounting portion 23f to form a notch 23g.

The inner water stop label 71, attached to the upper end of the inner door frame 23 of the inner shoji screen 2, is a label-shaped member made of a flexible material such as synthetic resin. The inner water stop label 71 has an attachment portion 71a that is attached to the inner door frame 23 and a fin portion 71b that extends outside the room from the attachment portion 71a. The fin portion 71b is shorter in vertical dimension than the attachment portion 71a, and a notch 71c is formed at the top of the fin portion 71b to prevent excessive interference with the intermediate wall 11d of the upper frame 11.

As shown in Figure 4(b), the interior joiner waterproof label 71 has its fin portion 71b protruding to the outside of the room from the notch 23g formed in the joiner frame 23, and its mounting portion 71a is adhered to the outer peripheral side of the partition wall 23c of the joiner frame 23. The fin portion 71b protruding to the outside of the room covers the notch portion of the smoke deflector piece 23d from the outer peripheral side.

The end cap 5 is made of an elastic material such as synthetic resin, and as shown in Figure 4(b), has an insertion portion 5a that is inserted into the hollow body 23a of the joint frame 23, a ceiling portion 5b that closes the upper end of the hollow body 23a of the joint frame 23, and multiple fin pieces 5c.

As shown in Figures 4(b) and (c), the end cap 5 has the insertion portion 5a attached from above to the hollow body 23a of the joint frame 23, with the fin portion 5c protruding from the cutout portion 23g of the joint frame 23 to the outside of the room.

The end cap 5 has an outward-protruding fin portion 5c that connects the airtight line formed by the airtight material s51 attached to the airtight material mounting portion 23f of the joining frame 23 of the inner shoji screen 2 at the upper part of the joining portion of the inner and outer shoji screens 2, 3, with the airtight line formed by the airtight material s12 attached to the intermediate wall 11d of the upper frame 11.

(Waterproof structure of outer shoji screen)
The outer sash joint frame 34 of the outer sash 3 in this embodiment has an outer sash joint water-stop label (water-stop member) 72 at the upper end, which improves waterproof performance.
In addition, the outer shoji screen 3 has a vibration prevention member 6 attached to the upper end of the joint frame 34.

As shown in Figure 5(a), the right vertical frame (outer joint frame) 34 of the outer shoji screen 3 has the upper ends of the smoke deflector piece 34c and protrusion piece 34e formed on the interior side cut out.

The outer water stop label 72, attached to the upper end of the outer door frame 34 of the outer screen 3, is a label-shaped member made of a flexible material such as synthetic resin. The outer water stop label 72 has an attachment portion 72a that is attached to the outer door frame 34 and a fin portion 72b that extends toward the interior of the room from the attachment portion 72a. The fin portion 72b is shorter in vertical dimension than the attachment portion 72a, and a notch 72c is formed at the top of the fin portion 72b to prevent excessive interference with the intermediate wall 11d of the upper frame 11.

As shown in Figure 5(b), the attachment portion 72a of the external joint waterproof label 72 is adhered to the upper end of the outer side of the outer side wall 34d of the joint frame 34, near the interior of the room, and the fin portion 72b protruding toward the interior of the room covers the cutout portion of the protrusion 34e from the outer periphery.

(Effects of the window of this embodiment)
As described above, the upper end portions of the smoke deflector piece 23d and the airtight material mounting portion 23f of the joint frame 23 of the inner shoji screen 2 of the window in this embodiment are notched to enable guidance by the intermediate wall 11d of the upper frame 11, and an inner joint waterproof label 71 which is less flexible (not too soft, not easily bent) than the fin piece portion 5c of the end cap 5 or the airtight materials s11 to s15 is provided to cover the notched portion of the smoke deflector piece 23d.

As a result, the inner sash 2's joint frame 23 can cover the gap between it and the outer sash 3's joint frame 34 to a position extremely close to the underside of the middle wall 11d of the upper frame 11, and because the watertight portion (fin portion 71b) has low flexibility, deterioration of watertightness due to deformation, etc. can be suppressed.

In addition, the upper end portions of the smoke deflector piece 34c and protruding piece 34e of the outer window screen 3 in this embodiment are notched to allow guidance by the intermediate wall 11d of the upper frame 11, and an outer waterproof label 72 that is less flexible (not too soft, not easily bent) than the airtight materials s11-s15 is provided to cover the notched portion of the protruding piece 34e.

As a result, the outer sash 3's joint frame 34 can cover the gap between it and the inner sash 2's joint frame 23 up to a position extremely close to the underside of the middle wall 11d of the upper frame 11, and because the watertight portion (fin portion 72b) has low flexibility, deterioration of watertightness due to deformation, etc. can be suppressed.

Furthermore, the window of this embodiment is provided with an inner joint water stop label 71 and an outer joint water stop label 72 on the joint frame 23 of the inner shoji screen 2 and the joint frame 34 of the outer shoji screen 3, respectively. As shown in Figure 6, this allows for a double waterproof wall to be placed at the continuous point of the airtight line formed by the fin portion 5c of the end cap 5: a waterproof wall formed by the smoke deflector piece 23d of the inner shoji screen 2 and the fin portion 71b of the inner joint water stop label 71, and a waterproof wall formed by the protrusion piece 34e of the outer shoji screen 3 and the fin portion 72b of the outer joint water stop label 72, thereby improving waterproof performance.

Furthermore, the inner and outer water stop labels 71 and 72 each have cutouts 71c and 72c that pass through the intermediate wall 11d of the upper frame 11, so that excessive resistance is not applied to the sliding of the inner and outer screens 2 and 3, and water passing through the cutouts 71c and 72c can be drained by positioning the water return piece 8 provided on the upper frame 11 between the inner and outer water stop labels 71 and 72.
Furthermore, the window of this embodiment can drain rainwater and the like through the double waterproof walls, further improving waterproof performance.

As with the window of this embodiment, it is preferable to provide waterproof labels on both the inner shoji screen 2 and the outer shoji screen 3, but it is also possible to provide a waterproof label on either the inner shoji screen 2 or the outer shoji screen 3, thereby improving waterproof performance.

--Second embodiment--
(Waterproof structure of outer shoji screen)
The right vertical frame (joint frame) 34 of the outer shoji screen 3 in this embodiment has a water-stopping part (water-stopping member) 73 at the upper end, which improves waterproofing performance.
Other than that, the basic configuration of the window is the same as that of the window in the first embodiment, so some explanation of the window will be omitted here.

As shown in Figure 7(a), the water-stopping component 73 has an attachment portion 73a for attachment to the upper end of the joining frame 34, a water-stopping portion 73b that bends toward the interior of the room on one side (outer periphery) of the attachment portion 73a and covers the outer periphery of the joining frame 34, and an outdoor outer peripheral wall portion 73c that bends toward the exterior of the room on one side (outer periphery) of the attachment portion 73a and covers the outer periphery of the joining frame 34.

As shown in Figures 7(a), (b), and (c), the waterproof component 73 of this embodiment is formed from three components: a main body component 731 made of a metal material such as stainless steel, a waterproof label 732 made of a flexible material such as synthetic resin, and a spacer label 733 made of a material such as synthetic resin.

The main body component 731 has a bottom wall portion 731a constituting the mounting portion 73a, an indoor-side visible wall 731b rising upward from the indoor-side edge of the bottom wall portion 731a, an outdoor-side visible wall 731c rising upward from the outdoor-side edge of the bottom wall portion 731a, an indoor-side wing portion 731d bending and extending from one side (outer periphery) of the indoor-side visible wall 731b toward the indoor side, and an outdoor-side wing portion 731e bending and extending from one side (outer periphery) of the outdoor-side visible wall 731c of the mounting portion 73a toward the outdoor side.

The waterproof label 732 is a flexible label-shaped member made of synthetic resin or the like, and has an attachment portion 732a that is adhered to the main body part 731, and a fin portion 732b that extends from the attachment portion 732a toward the interior of the room.
The waterproof label 732 has a fin portion 732b that is shorter in vertical dimension than the mounting portion 732a, and a notch portion 732c is formed at the top of the fin portion 732b to prevent excessive interference with the intermediate wall 11d of the upper frame 11.

The waterproof label 732 is attached to the main body part 731 so that the attachment portion 732a is adhered to the inner peripheral surface of the indoor wing portion 731d of the main body part 731 and the fin portion 732b protrudes toward the indoor side of the indoor wing portion 731d.

The spacer label 733 is a label-shaped member with a surface shape similar to that of the outdoor wing portion 731e of the main body component 731, and is attached to the main body component 731 by being adhered to the inner peripheral surface of the outdoor wing portion 731e of the main body component 731.

As shown in Figures 8(a) and 9(a), the door frame 34, like the door frame 34 of the first embodiment, has a smoke deflector piece 34c and a protrusion piece 34e formed on the indoor side, the upper ends of which are cut out, and a vibration prevention member 6 is attached to the rail guide portion at the upper end.
The anti-sway member 6 attached to the door frame 34 has anti-sway portions 6a, 6a that abut against the indoor and outdoor surfaces of the outer upper rail 11e of the upper frame 11 when the outer screen 3 is erected into the frame body 1 to prevent the outer screen 3 from swaying.

As shown in Figures 9(a) and 9(b), the water-stopping component 73 is attached to the upper end of the joiner frame 34 by inserting the mounting portion 73a from the outer periphery into the anti-sway member 6 at the upper end of the joiner frame 34, and as shown in Figures 8(b) and 9(c), the indoor-side visible wall 731b and the outdoor-side visible wall 731c of the mounting portion 73a fit below the anti-sway members 6a, 6a, thereby attaching the water-stopping component 73 to the upper end of the joiner frame 34.

Before installation, the water-stopping component 73 of this embodiment has a shape in which the indoor side facing wall 731b and the outdoor side facing wall 731c, which form an approximately U-shaped cross section, become increasingly spaced apart as they go upward, as shown in Figures 7(d) and (e). However, when installed on the anti-vibration member 6, the indoor side facing wall 731b and the outdoor side facing wall 731c become vertical due to elastic deformation.
Therefore, the water-stopping component 73 is held without rattle relative to the anti-vibration member 6.

As shown in Figure 7(a), the water-stopping component 73 may have protrusions 731g, 731g provided at appropriate positions on the upper end pieces of the indoor-side visible wall 731b and the outdoor-side visible wall 731c, and the protrusions 731g, 731g may abut against the lower portions of the anti-vibration portions 6a, 6a of the anti-vibration member 6 to prevent them from slipping out toward the outer periphery.

The water-stopping component 73 may also have a screw hole 73f provided in the indoor facing wall 731b and/or the outdoor facing wall 731c of the mounting portion 73a, and may be fixed to the anti-vibration member 6 with a screw or the like via the screw hole 73f.

As shown in Figures 8(b) and 9(c), the water-stopping part 73b and the outdoor outer peripheral wall part 73c of the water-stopping part 73 attached to the upper end of the joining frame 34 abut against the outer peripheral surface of the upper end of the joining frame 34 on both the indoor and outdoor sides of the rail guide part, and the fin part 732b of the water-stopping label 732 that constitutes the water-stopping part 73b covers the notch above the protrusion 34e of the joining frame 34 from the outer periphery.

(Effects of the window of this embodiment)
The window of this embodiment can achieve the same effects as the window of the first embodiment, as well as the following special effects.
The window of this embodiment is provided with a water-stopping part (water-stopping member) 73 having a fin portion 732b that covers the cutout portion of the protrusion 34e at the upper end of the joint frame 34 of the outer shoji screen 3, so that the gap between the joint frame 23 of the inner shoji screen 2 can be covered up to a position very close to the underside of the intermediate wall 11d of the upper frame 11, thereby improving watertightness performance.

In the window of this embodiment, the water-stopping component (water-stopping member) 73 attached to the upper end of the joint frame 34 has a water-stopping portion 73b (fin portion 732b) that covers the notch portion of the protrusion 34e and an attachment portion 73a that is continuous with the water-stopping portion 73b. The water-stopping component 73 is attached to the joint frame 34 by fitting the attachment portion 73a into the anti-vibration member 6, so the position of the water-stopping portion 73b that covers the notch portion of the protrusion 34e is stable and the attachment is strong.

In the window of this embodiment, the water-stopping part (water-stopping member) 73 is provided with an outdoor outer peripheral wall portion 73c that abuts the outer peripheral surface of the joint frame 34 together with a water-stopping portion 73b, so that the installation of the water-stopping part (water-stopping member) 73 at the upper end of the joint frame 34 can be stabilized.
The window of this embodiment can easily replace deteriorated water-stopping portion 73b by replacing water-stopping component 73, thereby improving maintainability.

In this embodiment, the outer window screen 3 has a water-stopping component 73 formed from three components: a main body component 731, a water-stopping label 732, and a spacer label 733. The water-stopping label 732 and the spacer label 733 are attached so that they are sandwiched between the indoor wing portion 731d of the main body component 731 and the outer peripheral surface of the joining frame 34, and between the outdoor wing portion 731e and the outer peripheral surface of the joining frame 34. This allows the water-stopping component 73 to be attached without rattle, and the water-stopping portion 73b (fin portion 732b) covering the cutout portion of the protrusion 34e can be firmly fixed, improving durability.

-Other embodiments-
As shown in Figures 10 and 11, the door frame 34 of the outer window screen 3 may have only a smoke deflector piece 34c without a protrusion piece 34e, and the notch formed in the upper part of the smoke deflector piece 34c may be covered by a water-stopping member (external door frame water-stopping label 72, water-stopping part 83).

The water-stopping component 73 attached to the upper end of the outer door frame 34 of the outer screen 3 may be formed as a single unit using synthetic resin or the like, or may consist of only the mounting portion 73a and the water-stopping portion 73b.

It goes without saying that the above embodiments do not limit the invention described in the claims, but are to be treated as examples.

2: Inner Shoji 23: Shoai-suji (left vertical frame)
23a: Hollow portion main body 23b: Panel opening 23c: Partition wall 23d: Smoke return piece 23e: Outdoor wall 23f: Airtight material mounting portion 23g: Notch 24a: Panel opening 3: Outer shoji 34: Joint frame (right vertical frame)
34a: Hollow body 34b: Panel opening 34c: Smoke deflector 34d: Outer peripheral side wall 34e: Projection 71: Inner joint waterproof label (waterproof member)
71a: Mounting portion 71b: Fin portion 72: Outer joint waterproof label (waterproof member)
72a: Mounting portion 72b: Fin portion 73: Water-stopping component (water-stopping member)
73b: Water stop part

Claims (1)

It has a frame, inner and outer shoji screens,
The outer door frame has a smoke deflector provided on the side of the room and a protruding piece formed by extending the outer wall of the outer door frame toward the room side.
The upper ends of the smoke deflector and protruding piece of the outer shoji screen are notched,
The outer shoji door sash is an opening device that has a waterproofing member that blocks the cutout portion of the protruding piece.