Ventilation frames and fittings

Abstract

To provide a ventilation frame on which a shoji screen stopper can be attached. [Solution] The ventilation frame 31A is a ventilation frame that provides a ventilation function inside the upper frame of a sliding door that is slidably installed within the frame 2, and comprises a frame body having a first ventilation hole formed on one of the indoor-side facing surface and the outdoor-side facing surface, a mounting member disposed on the frame body having a second ventilation hole formed on the other facing surface, and a fixed wall member disposed on the frame body to which a sliding door stopper that restricts the sliding movement of the sliding door can be attached, without having a second ventilation hole formed on the other facing surface.

Description

Technical Field

[0001] The present invention relates to a ventilation frame and a building fitting.

Background Art

[0002] Conventionally, there has been known a building fitting that can be ventilated while the shoji is closed. For example, there has been proposed a ventilation frame of a sash that forms a ventilation hole communicating the outside of the building and the inside of the building in the upper frame portion, and can take in outside air into the room from the ventilation hole in the upper frame (see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the installation of a sliding window, a shoji stopper for restricting the sliding movement of the outer shoji is often provided on the outdoor-side finding surface of the upper frame of the inner shoji. Further, for example, when installing a large sash in a building, since the opening and closing operation becomes difficult due to the weight of the glass, a handle paired with the door end frame of the shoji is often installed. Even in a sliding window for a general house, the opening and closing of the shoji may become difficult due to a decrease in muscle strength due to aging, etc., and an assist handle with an opening operation assisting device may be installed.

[0005] In such a sliding window provided with a handle, if a shoji stopper is not installed on the upper frame, when the outer shoji is opened, there is a problem that the handle installed on the door end frame contacts the inner calling frame of the inner shoji. However, since the ventilation frame of Patent Document 1 has a ventilation hole formed in the upper frame portion for communicating the outside of the building and the inside of the building, it was impossible to attach a shoji stopper from the viewpoint of strength.

[0006] The purpose of this disclosure is to provide a ventilation frame on which a shoji screen stopper can be attached. [Means for solving the problem]

[0007] This disclosure relates to a ventilation frame that provides a ventilation function inside the upper frame of a sliding shoji screen, which is slidably installed within a frame, and comprises: a frame body having a first ventilation hole formed on one of the indoor-facing and outdoor-facing surfaces; a mounting member disposed on the frame body and having a second ventilation hole formed on the other facing surface; and a fixed wall member disposed on the frame body to which a shoji screen stopper that restricts the sliding movement of the shoji screen can be attached, which does not have a second ventilation hole formed on the other facing surface. [Brief explanation of the drawing]

[0008] [Figure 1] This is a view of the interior side of the building fixture related to this disclosure. [Figure 2] This is a view of the building component related to this disclosure, seen from the exterior. [Figure 3] This is a longitudinal cross-sectional view showing the interior and exterior sliding doors related to the building components disclosed herein. [Figure 4] This is a vertical cross-sectional view showing the interior shoji screen of the building fixture related to this disclosure. [Figure 5] This is a cross-sectional view showing the door / window fitting related to this disclosure in the closed state. [Figure 6] This is a cross-sectional view showing the open state of the fixture related to this disclosure. [Figure 7] This is a magnified vertical cross-sectional view of the upper part of the ventilation frame. [Figure 8] This is a magnified vertical cross-sectional view showing the upper part of the fixed frame. [Figure 9] This is a perspective view showing the ventilation frame and fixed frame as seen from the outside. [Figure 10] This is a modified example of the indoor ventilation opening according to this embodiment. [Figure 11] This is a modified example of the pull handle according to this embodiment. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described in detail below with reference to the drawings. In this specification, "visible direction" refers to the surface direction of a shoji screen in a door or window fitted into an opening in a building, and "depth direction" refers to the thickness direction of the shoji screen. In the drawings of this specification, the interior side of the depth direction of the door or window is denoted as X1, and the exterior side of the depth direction of the door or window is denoted as X2. The horizontal direction in the visible direction of the door or window is denoted as the left-right direction.

[0010] As shown in Figures 1 and 2, the joinery 1 of this embodiment is installed in an opening in a building (not shown). The building in which the joinery 1 is installed can be any type of building, for example, a multi-story building such as a building, or a general house such as a detached house. The joinery 1 has a frame 2, a sliding screen 10 that can slide inside the frame 2, a screen stopper 5 provided on the visible surface in the X2 direction, a pair of handles 6, 6, and a crescent lock 7. The joinery 1 of this embodiment is a sliding window, and the screen 10 is composed of an inner screen 3 and an outer screen 4. The screen 10 in Figure 5 is shown in a closed state, and the screen in Figure 6 is shown in an open state.

[0011] The frame 2 is constructed by framing an upper frame 21 extending horizontally over the upper part of the door 1, a lower frame 22 extending horizontally over the lower part of the door 1, and vertical frames 23 and 24 positioned horizontally and extending vertically over the vertical part of the door 1, in a roughly rectangular shape. The frame 2 is made of profiles obtained by extruding metal such as aluminum. As shown in Figure 3, the upper frame 21 has an indoor side panel 21a, a partition panel 21b, an outdoor side panel 21c, and an upper surface 21d. The partition panel 21b is a partition panel that protrudes downward from approximately the center of the upper surface 21d in the depth direction.

[0012] As shown in Figure 3, the inner sash 3 is installed between the indoor side panel 21a and the partition panel 21b, and the outer sash 4 is installed between the partition panel 21b and the outdoor side panel 21c. By sliding the inner sash 3 and the outer sash 4 in the left-right direction, the opening formed by the frame 2 is closed or opened.

[0013] As shown in Figure 3, the frame 2 is provided with a resin angle member 211 and a resin cover member 212. The resin angle member 211 is a resin member that is engaged to cover the interior side panel 21a and protrudes in the X1 direction. As a result, the thermal insulation performance of the resin angle member 211 suppresses heat transfer in the depth direction, thereby improving the thermal insulation performance of the joinery 1.

[0014] The resin cover member 212 has an outer peripheral cover member 212a and an inner peripheral cover member 212b. The resin cover member 212 is provided in a recess that opens downward, formed by the upper surface portion 21d, the indoor side plate portion 21a, and the partition plate portion 21b. As shown in Figure 5, when the shoji screen 10 is closed, the outer shoji screen 4 is exposed in the X1 direction and there is no shoji screen blocking the view in the depth direction, so heat is easily transferred. As shown in Figure 3, by providing the resin cover member 212 on the inner peripheral side of the upper frame 21, the transfer of heat in the depth direction of the upper frame 21 can be suppressed by the heat-insulating resin member. This configuration improves the heat insulation of the joinery 1. In Figure 5, the shoji screen stopper 5 is represented by a dashed line.

[0015] As shown in Figures 1 and 2, the interior sliding door 3 has a frame body 30 and double-glazed glass G1. The frame body 30 is composed of an upper frame 31, a lower frame 32, an inner frame 33, and a door edge frame 34. The frame body 30 is made of a profile obtained by extruding a metal such as aluminum, and the visible surface on the interior side is covered with a resin member. As shown in Figure 9, the upper frame 31 is a ventilation frame 31V with a ventilation function provided inside the upper frame 31. The ventilation frame 31V is composed of a ventilation frame section 31A that has a ventilation function, a fixed frame section 31B to which the sliding door stopper 5 is attached, and two types of frame members.

[0016] First, the ventilation frame portion 31A will be described. The ventilation frame portion 31A is a ventilation frame provided with a ventilation function inside the upper frame 31 of the shoji 10 slidably provided on the frame body 2. As shown in FIG. 7, the ventilation frame portion 31A includes a frame main body 311, an outdoor side attachment member 312, a first resin cover member 313, an operating plate 314, a second resin cover member 315, a filter 316, a heat foaming agent 317, and an operation portion OP shown in FIG. 1.

[0017] Returning to FIG. 7, the ventilation frame portion 31A is a composite frame in which a metal outdoor side attachment member 312 and a resin first resin cover member 313 are incorporated inside a metal frame main body 311, and the indoor side and the outdoor side of the ventilation frame portion 31A can be communicated or blocked through the rotation of the operating plate 314. Inside the ventilation frame portion 31A, a ventilation path A that communicates the outdoor side ventilation holes 31H, the intermediate ventilation holes 3122, 3122, the indoor side ventilation holes 3114a, and the resin cover ventilation holes 313b, which will be described later, is formed. The frame main body 311 has an upper surface portion 311a, a lower surface portion 311b, an outdoor side finding surface portion 311c, and an indoor side finding surface portion 311d. The frame main body 311 extends along the extending direction (longitudinal direction) of the upper frame 21 and extends over the entire left - right direction of the upper frame 31.

[0018] As shown in FIGS. 7 and 9, the upper surface portion 311a is provided between the outdoor side finding surface portion 311c and the indoor side finding surface portion 311d and constitutes the upper surface of the frame main body 311. The upper surface portion 311a has a tapping hole protruding downward at a substantially central portion and an engaging piece 3116 protruding downward at an end in the X2 direction. The lower surface portion 311b protrudes in the X2 direction orthogonally to the indoor side finding surface portion 311d from a substantially central portion in the vertical direction of the indoor side finding surface portion 311d, and the end in the X2 direction is continuously formed with the indoor side finding surface portion 311d.

[0019] The lower portion 311b has a tapping hole projecting upward in its approximate center and an engaging piece 3117. The engaging piece 3117 is formed projecting in the X2 direction from the tapping hole. The outdoor side facing portion 311c and the indoor side facing portion 311d constitute the outdoor and indoor sides of the frame body 311 and are wall portions that extend along the extension direction (longitudinal direction) of the upper frame 21.

[0020] The exterior facing surface 311c has an upper wall portion 3111, a lower wall portion 3112, an opening 311H, and an exterior ventilation hole 31H. A slit-shaped opening 311H is provided between the upper wall portion 3111 and the lower wall portion 3112. An exterior mounting member 312, described later, is attached to the opening 311H, forming an exterior ventilation hole 31H in the exterior facing surface 311c. The interior ventilation hole 31H constitutes the second ventilation hole of the present invention. The exterior ventilation hole 31H is a continuous slit-shaped opening that extends along the extension direction (longitudinal direction) of the ventilation frame portion 31A and opens in the X2 direction. The upper end of the lower wall portion 3112 is formed in continuity with the end of the lower surface portion 311b in the X2 direction.

[0021] The interior facing surface 311d has an upper wall portion 3113, an opening 3114, and a lower wall portion 3115. The upper wall portion 3113, the opening 3114, and the lower wall portion 3115 are continuous wall portions and constitute the X1 side facing surface of the frame body 311.

[0022] As shown in Figure 7, the upper wall portion 3113 has a bearing portion 3113a. The bearing portion 3113a is an arc-shaped receiving tray portion that is perpendicular to the upper wall portion 3113 in the X2 direction and opens upward. An operating plate 314 is installed in the bearing portion 3113a. The opening 3114 is provided between the upper wall portion 3113 and the lower wall portion 3115, and multiple indoor ventilation holes 3114a (corresponding to the first ventilation hole) of the same shape are intermittently formed at a certain interval between them in the left-right direction. With this configuration, the outdoor visible surface portion 311c and the indoor visible surface portion 311d of the frame body 311 can be connected, and an air passage can be formed inside the frame body 311.

[0023] As shown in Figures 7 and 9, the lower wall portion 3115 has an engaging projection 3115a at its lower end. The engaging projection 3115a is an engaging portion that protrudes in the X1 direction and extends along the extension direction (longitudinal direction) of the frame body 311. The engaging projection 3115a is formed in a substantially T-shape when rotated so that the X1 direction is at the top in cross-sectional view, and can engage with the second resin cover member 315 at two locations in the vertical direction.

[0024] The outdoor mounting member 312 constitutes the mounting member of the present invention. The outdoor mounting member 312 has an outdoor wall portion 312a and an intermediate wall portion 312W. The outdoor mounting member 312 is made of a profile obtained by extruding a metal such as aluminum. The outdoor mounting member 312 extends along the extension direction (longitudinal direction) of the ventilation frame portion 31A and is provided in addition to the fixed frame portion 31B.

[0025] The outdoor wall portion 312a has a crimped portion 3121 at its upper end. The crimped portion 3121 is crimped with an engaging piece 3116 provided on the upper surface portion 311a of the frame body 311 and fixed to the frame body 311. The outdoor visible surface portion 311c of the frame body 311 and the outdoor wall portion 312a of the outdoor mounting member 312 are configured to be continuous and flush with the visible surface on the X2 side. With this configuration, an outdoor ventilation hole 31H is formed between the lower end of the outdoor wall portion 312a and the upper end of the lower wall portion 3112 of the frame body 311.

[0026] As shown in Figures 7 and 9, the intermediate wall section 312W extends in the longitudinal direction of the ventilation frame section 31A and is a wall section that divides the interior of the ventilation frame section 31A into an indoor side and an outdoor side. The intermediate wall section 312W has a horizontal wall section 312b and a vertical wall section 312c. The horizontal wall section 312b is a surface material that extends perpendicularly in the X1 direction from the lower end of the outdoor side wall section 312a and is provided parallel to the upper surface section 311a and the lower surface section 311b of the frame body 311. The horizontal wall section 312b is connected to the outdoor side wall section 312a and a pair of intermediate ventilation holes 3122, 3122 are formed therein. The horizontal wall section 312b is also connected to the vertical wall section 312c.

[0027] The intermediate ventilation holes 3122, 3122 are ventilation holes that are intermittently formed at multiple locations in the left-right direction, with a certain interval between them. The intermediate ventilation holes 3122, 3122 are provided along the extension direction (longitudinal direction) of the outdoor mounting member 312, and multiple rows of ventilation holes that open in the vertical direction are formed in the depth direction.

[0028] In this configuration, the horizontal wall section 312b is positioned above the outdoor ventilation opening 31H, and the lower end of the outdoor wall section 312a is located below the intermediate ventilation openings 3122, 3122. Also, the lower end of the outdoor wall section 312a is located above the lower end of the vertical wall section 312c. Because the intermediate ventilation openings 3122, 3122 penetrate vertically, it is possible to prevent rainwater entering from the outdoor ventilation opening 31H from passing through the intermediate ventilation openings 3122, 3122. On the other hand, the airflow entering from the outdoor ventilation opening 31H is not blocked and can reliably pass through the intermediate ventilation openings 3122, 3122. Therefore, it is possible to improve the watertightness of the ventilation frame section 31A while maintaining excellent ventilation performance.

[0029] Furthermore, by providing a pair of intermediate ventilation holes 3122, 3122 in the depth direction, the width of each intermediate ventilation hole 3122, 3122 in the depth direction can be made smaller. For example, the width of the intermediate ventilation holes 3122, 3122 in the depth direction can be made as small as 15 mm, which has an insect-repellent effect that suppresses small insects from entering the inside of the frame body 311 from the outside.

[0030] The vertical wall portion 312c has an engaging portion 3123a at its upper end and an engaging portion 3123b and an engaging piece 3123c at its lower end. The vertical wall portion 312c is formed by branching vertically from the X1 direction end of the horizontal wall portion 312b, and the upper end of the vertical wall portion 312c is located above the intermediate ventilation holes 3122, 3122. With this configuration, the airflow passing through the intermediate ventilation holes 3122, 3122 can form a ventilation path A that extends beyond the upper end of the vertical wall portion 312c, which is located above.

[0031] The engaging portions 3123a and 3123b are formed by projecting from the upper and lower ends of the vertical wall portion 312c in the X1 direction and bending in the vertical direction so that their respective tips face each other. The engaging portion 3123b is positioned slightly further from the visible surface in the X2 direction than the engaging portion 3123a. A heat-foamed material 317 with a substantially rectangular cross-section can be installed between the engaging portions 3123a and 3123b.

[0032] In this configuration, the heat-expanded foam material 317 is held by the engaging portions 3123a and 3123b which extend opposite to each other in the vertical direction. However, since the engaging portion 3123b is positioned slightly further from the visible surface in the X2 direction than the engaging portion 3123a, the upper end of the heat-expanded foam material 317 can be installed in a configuration that tilts slightly in the X2 direction. This reduces the height of the vertical wall portion 312c and allows for smoother airflow inside the ventilation frame portion 31A.

[0033] The engaging portion 3123b and the engaging piece 3123c are positioned to cover the upper surface of the lower portion 311b, with the engaging piece 3123c extending further in the X1 direction than the engaging portion 3123b and engaging with the engaging piece 3117 provided on the lower portion 311b of the frame body 311. With this configuration, the outdoor mounting member 312 is securely fixed to the frame body 311.

[0034] The heat-expandable material 317 expands when the surrounding temperature reaches a certain level, sealing gaps and preventing flames from escaping. Therefore, by installing the heat-expandable material 317, the door 1 can be given the function of a fire door. The heat-expandable material 317 may be installed as needed depending on the intended use of the door 1, or the door 1 may be constructed without it.

[0035] As shown in Figure 7, the first resin cover member 313 is a resin frame that extends along the longitudinal direction of the upper frame 31 and covers the visible surface of the opening 3114 of the frame body 311. As shown in Figures 7 and 8, the first resin cover member 313 extends from the ventilation frame portion 31A to the fixed frame portion 31B and covers the entire left-right direction of the indoor visible surface portion 311d. The first resin cover member 313 has an indoor wall portion 313a shown in Figures 1 and 7, a resin cover ventilation hole 313b, and a pair of locking pieces 313c, 313c shown in Figure 7.

[0036] As shown in Figure 7, the interior wall portion 313a extends along the longitudinal direction of the upper frame 31, forming the visible surface of the upper frame 31 in the X1 direction, and is positioned flush with the upper wall portion 3113 of the frame body 311. With this configuration, the thermal insulation performance of the interior wall portion 313a suppresses heat transfer in the depth direction, thereby improving the thermal insulation performance of the joinery 1. As shown in Figure 1, the resin cover ventilation holes 313b are formed intermittently at multiple locations in the left-right direction of the interior wall portion 313a, with a certain interval between them.

[0037] Returning to Figure 7, the locking pieces 313c, 313c are plate portions that protrude in the X2 direction from both the upper and lower ends of the indoor wall portion 313a. The filter 316 is installed in the hollow space formed by the opening 3114 of the frame body 311, the locking pieces 313c, 313c, and the indoor wall portion 313a. The filter 316 is made of a flexible filter sponge material such as foamed polyurethane. This configuration allows for the removal of fine foreign matter entering from the outside while maintaining the airflow of the resin cover vent hole 313b.

[0038] As shown in Figure 7, the operating plate 314 is a rotating plate material provided on the bearing portion 3113a of the frame body 311 and extending along the extension direction (longitudinal direction) of the ventilation frame portion 31A, and is an indoor mounting member attached to the indoor side facing surface portion 311d of the frame body 311. The operating plate 314 has a rotating shaft 314a, a rotating plate 314b, and a pair of packing members 314c, 314c. The operating plate 314 can close or open the indoor side ventilation hole 3114a provided in the opening 3114 of the frame body by rotating the rotating plate 314b around the axis C1 located on the rotating shaft 314a. In Figure 7, the actuation plate 314 represented by a dashed line indicates that the indoor ventilation hole 3114a is closed, while the actuation plate 314 represented by a solid line indicates that the indoor ventilation hole 3114a is open.

[0039] The operating plate 314 is linked to the operating unit OP shown in Figure 1, and by sliding the operating unit OP in the left-right direction, the operating plate 314 can be rotated to close or open the indoor ventilation hole 3114a. As shown in Figure 7, since the rotating plate 314b has a bent shape, when the indoor ventilation hole 3114a is closed, packing members 314c, 314c can be installed between the indoor ventilation hole 3114a and the rotating plate 314b.

[0040] The packing members 314c, 314c are sealing materials formed from a highly durable material such as polyvinyl chloride. The packing members 314c, 314c can suppress the leakage of air or water in the X1 direction when the indoor ventilation hole 3114a is closed. The packing members 314c, 314c are provided in pairs at the lower end of the rotating plate 314b and at the upper end of the straight section extending upward from the lower end of the rotating plate 314b. This configuration improves the airtightness of the operating plate 314.

[0041] As shown in Figure 7, the second resin cover member 315 extends along the longitudinal direction of the frame body 311 and protrudes in the X1 direction. The thermal insulation performance of the second resin cover member 315 suppresses heat transfer in the depth direction, thereby improving the thermal insulation of the joinery 1. The second resin cover member 315 has a locking portion 315a, an engaging portion 315b, and an engaging wall portion 315c.

[0042] The locking portion 315a is configured in a substantially L-shape with a cross-sectional view opening in the X2 direction and is locked to the lower end of the indoor side wall portion 313a of the first resin cover member 313. The engaging portion 315b is an engaging portion that protrudes in the X2 direction from the substantially central part of the second resin cover member 315 and is bent downward at a substantially right angle. The engaging portion 315b engages with the engaging projection 3115a provided on the lower wall portion 3115 of the frame body 311. The engaging wall portion 315c is a wall portion that protrudes upward from the lower end face of the second resin cover member 315 and engages with the engaging projection 3115a provided on the lower wall portion 3115 of the frame body 311.

[0043] The ventilation frame 31A is thus constructed. As shown in Figure 7, the direction of the arrows indicates the airflow path from the outside to the inside, and represents the direction of the ventilation path A formed inside the ventilation frame 31A. The outdoor ventilation opening 31H, which serves as the air inlet, is located approximately in the center in the vertical direction on the outdoor surface of the ventilation frame 31A. The air flowing in from the outdoor ventilation opening 31H then passes through the intermediate ventilation openings 3122, 3122. The intermediate ventilation openings 3122, 3122 are located above the outdoor ventilation opening 31H and are provided perpendicular to the outdoor wall 312a from the lower end of the outdoor wall 312a, thus providing the effect of being shielded and invisible from the X2 direction.

[0044] The air that has passed through the intermediate ventilation holes 3122, 3122 flows towards the opening 3114 of the frame body 311, gently bypassing the vertical wall section 312c that protrudes upward from the horizontal wall section 312b. At this time, if the indoor ventilation hole 3114a is closed by the operating plate 314, the airflow is temporarily suspended here. On the other hand, if the indoor ventilation hole 3114a is open by the operating plate 314, air flows from the indoor ventilation hole 3114a through the filter 316 and into the room via the resin cover ventilation hole 313b.

[0045] The intermediate ventilation holes 3122, 3122 are shielded from the line of sight in the X1 direction by the concealing effect of the vertical wall section 312c. This configuration creates a gentle labyrinth inside the ventilation frame section 31A, suppressing the flow of air from the outdoor ventilation hole 31H to the resin cover ventilation hole 313b, and also blocking the line of sight from the outside and through each of the outdoor ventilation holes. Furthermore, because the intermediate ventilation holes 3122, 3122 are located approximately in the center of the ventilation frame section 31A in the vertical direction, the formed labyrinth is gentle, and the airflow path is not complexly configured, thus preventing excessive suppression of airflow from the outside.

[0046] Next, the fixed frame section 31B will be described. As shown in Figures 2 and 9, the fixed frame section 31B is a frame section that is partially used in the area where the shoji stopper 5 is provided. As shown in Figures 7 and 8, the difference between the ventilation frame section 31A and the fixed frame section 31B is that the fixed frame section 31B is provided with an outdoor fixed wall member 319 instead of the outdoor mounting member 312 provided on the ventilation frame section 31A. The other components are the same as those of the ventilation frame section 31A, so their explanation will be omitted.

[0047] The outdoor fixed wall member 319 constitutes the fixed wall member of the present invention. As shown in Figure 8, the outdoor fixed wall member 319 has an outdoor wall portion 319a, an upper surface portion 319b, a bottom surface portion 319c, an indoor wall portion 319d, and a hollow portion H1. The outdoor wall portion 319a is a wall member provided to close the space between the upper wall portion 3111 and the lower wall portion 3112 of the outdoor visible surface portion 311c of the frame body 311. The outdoor wall portion 319a has a through hole TH1, and the shoji stopper 5 is fixed to the outdoor wall portion 319a via a screw.

[0048] As shown in Figures 2 and 9, the ventilation frame 31A and the fixed frame 31B are provided without any gaps, one end of the outdoor wall portion 319a abuts against the door frame 34, and the other end is provided adjacent to the outdoor wall portion 312a and the outdoor ventilation hole 31H of the outdoor mounting member 312. The outdoor mounting member 312 is positioned on the X2 side (outdoor side) and the outer sash 4 side of the frame body 311, and the outdoor fixed wall member 319 is positioned on the X2 side (outdoor side) and the vertical frame 24 side of the frame body 311. Also, as shown in Figure 9, the outdoor mounting member 312 and the outdoor fixed wall member 319 are attached to a slit-shaped opening 311H that extends in the longitudinal direction of the frame body 311.

[0049] With this configuration, the fixed frame portion 31B is not provided with ventilation holes for air to flow in from the outside, and a wall is formed that is completely covered by the outdoor wall portion 319a. On the other hand, air flowing in from the outdoor ventilation holes 31H of the ventilation frame portion 31A can flow into the interior of the adjacent fixed frame portion 31B without being obstructed, and a ventilation path (not shown) can be formed inside the fixed frame portion 31B.

[0050] As shown in Figure 8, the outdoor wall portion 319a has a crimped portion 3191 at its upper end. The crimped portion 3191 is crimped with an engaging piece 3116 provided on the upper surface portion 311a of the frame body 311 and fixed to the frame body 311. The outdoor wall portion 319a, the upper surface portion 319b, the bottom surface portion 319c, and the indoor wall portion 319d are configured in a roughly rectangular tubular shape, with a hollow portion H1 formed inside. The indoor wall portion 319d has an engaging portion 3192a at its upper end and an engaging portion 3192b and an engaging piece 3192c at its lower end.

[0051] The engaging portions 3192a and 3192b protrude perpendicularly from the interior wall portion 319d in the X1 direction, with the engaging portion 3192a being bent downwards and the engaging portion 3192b being bent upwards. The engaging portion 3192b is positioned slightly further from the visible surface in the X2 direction than the engaging portion 3192a. This configuration allows a heat-foamed material 317, which has a roughly rectangular cross-section, to be installed between the engaging portions 3123a and 3123b, with its upper end tilted in the X2 direction.

[0052] The engaging portion 3192b and the engaging piece 3192c are positioned to cover the upper surface of the lower portion 311b, with the engaging piece 3192c extending longer than the engaging portion 3192b and engaging with the engaging piece 3117 provided on the lower portion 311b of the frame body 311. The fixed frame portion 31B is securely fixed to the frame body 311 by the crimping portion 3191 and the engaging piece 3192c.

[0053] With this configuration, as shown in Figure 6, even if strong stress is applied to the shoji stopper 5 provided on the exterior wall portion 319a by the outer frame 43 of the outer shoji 4, the separation of the exterior wall portion 319a from the frame body 311 can be suppressed. With this configuration, the fixed frame portion 31B can securely fix the shoji stopper 5. In Figure 6, the shoji stopper 5 is represented by a dashed line.

[0054] Since the heat-expanding material 317 is the same as that provided on the ventilation frame 31A, its description will be omitted. With this configuration, the engaging portions 3123a and 3123b of the ventilation frame 31A and the engaging portions 3192a and 3192b of the fixed frame 31B are formed in the same shape, so a common heat-expanding material 317 can be installed on the upper frame 31.

[0055] As shown in Figure 8, the airflow path of the fixed frame section 31B is indicated by arrows. Air flowing in from the outdoor vent 31H and intermediate vent 3122, 3122 of the ventilation frame section 31A flows into the interior of the fixed frame section 31B along the longitudinal direction of the upper frame 31 and flows to the opening 3114 of the frame body 311 provided on the X1 side. At this time, if the indoor vent 3114a is closed by the operating plate 314, the airflow is temporarily halted here. On the other hand, if the indoor vent 3114a is open by the operating plate 314, air can flow into the room from the indoor vent 3114a, through the filter 316, and via the resin cover vent 313b, also from the location where the fixed frame section 31B is installed.

[0056] As shown in Figure 5, the inner frame 33 is a vertical frame positioned on the inner shoji screen 3. The inner frame 33 comprises a frame body 331 and a resin cover material 332. The frame body 331 is formed in a substantially rectangular shape in cross-section by an outer peripheral wall portion 331a, an indoor wall portion 331b, an inner peripheral wall portion 331c, an outdoor wall portion 331d, and a partition wall portion 331e. The interior of the frame body 331 has two hollow portions H2 and H3 that are partitioned in the depth direction by the partition wall portion 331e.

[0057] The depth of the inner frame 33 is greater than the depth of the upper frame 31, lower frame 32, and door edge frame 34 of the inner sliding door 3, due to the presence of two hollow sections H2 and H3 in which the frame body 331 is arranged side by side in the depth direction, and it protrudes significantly from the vertical frame 2 in the X1 direction. The resin cover material 332 is provided on the portion where the frame body 331 is exposed on the X2 side. The resin cover material 332 has an outer peripheral wall portion 332a, an indoor side wall portion 332b, an inner peripheral wall portion 332c, and a partition wall portion 332d.

[0058] The interior of the resin cover material 332 has a hollow section H4 partitioned in the depth direction by a partition wall 332d. The hollow section H4 is a hollow section without internal partitions that is arranged across the X1 side surface of the resin cover material 332. This configuration allows for a slender and slim surface of the resin cover material 332, while the hollow section H4 suppresses heat transfer in the depth direction of the inner frame 33, thereby improving thermal insulation. By combining the frame body 331 and the resin cover material 332, the X1 side surface of the inner frame 33 can be made as slender as possible in the left-right direction, improving the aesthetic design of the joinery 1, and also improving the operability of the inner shoji screen 3 by making it easier to grasp the inner frame 33 with your fingers when opening and closing the inner shoji screen 3.

[0059] The door frame 34 comprises a frame body 341 and a resin cover material 342. The frame body 341 is formed in a substantially rectangular shape in cross-section by an inner circumferential frame member 341a, an indoor frame member 341b, an outer circumferential frame member 341c, and an outdoor frame member 341d, and has a hollow portion H5 inside. The outer circumferential frame member 341c has outdoor protrusions 3411, 3412 and indoor protrusions 3413, 3414 that protrude outward from the X1 side end and the X2 side end, respectively.

[0060] The resin cover material 342 is provided on the X1 side of the frame body 341. The resin cover material 342 has a roughly C-shape in cross-section and is provided so as to protrude toward the X1 side, thereby forming a hollow portion H6 between the resin cover material 342 and the frame body 341. This configuration suppresses heat transfer in the depth direction at the door frame 34, thereby improving the thermal insulation of the door 1.

[0061] As shown in Figures 5 and 8, the double-glazed glass G1 is formed by two glass plates with a spacer GS in between. Glazing channels GC are provided at the upper end and the longitudinal side end of the double-glazed glass G1. The double-glazed glass G1 is housed in the frame 30 via the glazing channels GC.

[0062] As shown in Figures 1 and 2, the outer sliding door 4 has a frame 40 and double-glazed glass G2. The frame 40 is composed of an upper frame 41, a lower frame 42, a rear outer frame 43, and a door-edge frame 44. The difference between the inner sliding door 3 and the outer sliding door 4 is the different configuration of the upper frame 41 and the rear outer frame 43. The other configurations are the same as those of the inner sliding door 3, so their explanation is omitted.

[0063] As shown in Figure 2, the upper frame 41 has a ventilation frame section 41A, and no fixed frame section 31B is provided. As shown in Figure 3, the configuration of the ventilation frame section 41A is the same as that of the ventilation frame section 31A of the inner sash 3. The frame body 411, the outdoor mounting member 412, the outdoor ventilation hole 41H, the first resin cover member 413, the operating plate 414, the second resin cover member 415, and the filter 416 of the ventilation frame section 41A are the same as those of the frame body 311, the outdoor mounting member 312, the outdoor ventilation hole 31H, the first resin cover member 313, the operating plate 314, the second resin cover member 315, and the filter 316 of the ventilation frame section 31A described above. Furthermore, as shown in Figure 1, the resin cover ventilation holes 413b provided in the first resin cover member 413 are the same as the resin cover ventilation holes 313b provided in the first resin cover member 313.

[0064] As shown in Figure 5, the door frame 43 comprises a frame body 431 and a resin cover material 432. The frame body 431 is formed in a substantially rectangular shape in cross-section by an outer peripheral wall portion 431a, an inner interior wall portion 431b, an inner peripheral wall portion 431c, an outer exterior wall portion 431d, and a partition wall portion 431e. The interior of the frame body 431 has a hollow portion H7 that is partitioned in the depth direction by the partition wall portion 431e.

[0065] The resin cover material 432 is provided on the X1 side of the frame body 431. The resin cover material 432 has a roughly E-shape that opens in the X2 direction in cross-section and is provided so as to protrude towards the X1 side, thereby forming two hollow portions H8 and H9 between the resin cover material 432 and the frame body 431. This configuration suppresses heat transfer from the gap in the depth direction of the outer frame 43 and the inner frame 33, thereby improving thermal insulation.

[0066] As shown in Figure 5, the door frame 44 of the outer sliding door 4 consists of the frame body 441, the resin cover material 442, the inner periphery frame member 441a, the indoor frame member 441b, the outer periphery frame member 441c, the outdoor frame member 441d, the hollow section H10, the hollow section H11, the outdoor protrusions 4411, 4412, and the indoor protrusions 4413, 4414. The frame body 341, resin cover material 342, inner peripheral frame member 341a, indoor frame member 341b, outer peripheral frame member 341c, outdoor frame member 341d, hollow section H5, hollow section H6, outdoor protrusions 3411, 3412, and indoor protrusions 3413, 3414 of the door frame 34 of the inner sliding door 3 described above are the same.

[0067] As shown in Figures 3 and 4, a sway-preventing member 3S is provided so as to cover the upper end of the door frame 34 of the inner sash 3. As shown in Figure 4, the sway-preventing member 3S has an upper surface portion 3Sa and an outdoor-facing projection portion 3Sb. The outdoor-facing projection portion 3Sb is a convex portion that protrudes from the upper surface portion 3Sa in the X2 direction, and by abutting against the partition plate portion 21b of the upper frame 21, it can suppress the inner sash 3 from swaying in the depth direction.

[0068] As shown in Figure 3, a sway-preventing member 4S is provided so as to cover the upper end of the outer frame 43 of the outer sash 4. The sway-preventing member 4S has an upper surface portion 4Sa and an outdoor-facing projection portion 4Sb. The outdoor-facing projection portion 4Sb is a convex portion that protrudes upward and in the X2 direction from the upper surface portion 3Sa, and by abutting against the outdoor-facing plate portion 21c of the upper frame 21, it can suppress the swaying of the inner sash 4 in the depth direction. The two sway-preventing members 3S and 4S are made of resin.

[0069] As shown in Figures 2, 4, and 8, the shoji stopper 5 is provided on the fixed frame portion 31B of the inner shoji 3 and is an exposed member that restricts the sliding movement of the outer shoji 4. In Figures 4 and 8, the main body portion 51 of the shoji stopper 5 is represented by a dashed line. As shown in Figures 8 and 9, the shoji stopper 5 has a main body portion 51, a fixing plate 52, and a back plate 53.

[0070] As shown in Figure 9, the main body 51 is a hollow housing composed of a top surface 51a, an inner circumferential side surface 51b, an outdoor front surface 51c, an outer circumferential side surface 51d, a bottom surface 51e, a back plate 51f, and a lid 51g. The outdoor front surface 51c has a beveled surface 511, and the main body 51 is formed in a roughly rectangular shape with the beveled surface 511 being widely chamfered in plan view.

[0071] The back plate portion 51f has a shape in which the upper surface portion 51a is bent upward at approximately a right angle, and its upper end protrudes upward from the inner circumferential side portion 51b, the outdoor side front portion 51c, and the outer circumferential side portion 51d. As shown in Figure 8, the X1 side facing surface of the back plate portion 51f is open. The cover portion 51g is a cover member provided on the outdoor side front portion 51c, and by opening the cover portion 51g, screws can be inserted into the interior of the main body portion 51 to install the shoji stopper 5.

[0072] As shown in Figure 8, the fixing plate 52 has a through hole TH2 at its upper end and a through hole TH3 at its lower end. The sliding door stopper 5 is fixed to the fixing frame 31B by sandwiching the outdoor side wall portion 319a of the fixing frame portion 31B between the fixing plate 52 and the backing plate 53 and inserting screws through the through hole TH2 in the fixing plate 52 and the through hole TH1 in the outdoor side wall portion 319a. In addition, the main body portion 51 of the sliding door stopper 5 and the fixing plate 52 are fixed through the through hole TH3 in the fixing plate 52. With this configuration, the sliding door stopper 5 is fixed to the outdoor side fixing wall member 319 by sandwiching it between itself and the backing plate 53.

[0073] As shown in Figures 1 and 5, the handle 6 is a handle for opening and closing the inner sliding door 3, and is provided on the X1 side facing surface of the resin cover material 342 of the door frame 34. The handle 6 is formed to be elongated along the extension direction (longitudinal direction) of the door frame 34 and protrudes toward the X1 direction. This improves the operability for opening and closing the inner sliding door 3. Similarly, the door frame 44 of the outer sliding door 4 is also provided with a pair of handles 6 on the left and right sides in a symmetrical arrangement.

[0074] Furthermore, the handle 6 may be an assist handle that includes an opening assist device that operates to reduce the force required to open the sliding door 10. In this case, applying force to the handle of the handle 6 can assist in opening the sliding door 10. This configuration makes it possible to provide a larger opening dimension for the frame 2. Even if a sliding door 10 with large double-glazed glass G1 and G2 is installed inside the frame 2, the sliding door 10 can be easily opened and closed without feeling any load.

[0075] As shown in Figure 6, when the outer sash 4, which was in the closed position, is slid to open the opening formed by the frame 2, the outer peripheral side wall portion 431a of the outer frame 43 of the outer sash 4 is locked to the sash stopper 5. On the other hand, because the outer frame 43 is locked to the sash stopper 5 and the sliding movement of the outer sash 4 is restricted, the pull handle 6 provided on the door frame 44 of the outer sash 4 is prevented from contacting the inner frame 33 of the inner sash 3, and a remaining gap S1 is formed.

[0076] This configuration protects the handle 6 provided on the outer sliding door 4 from contact with the inner frame 33 and maintains a sufficient gap for operating the handle 6, thereby improving the operability and durability of the handle 6.

[0077] As shown in Figures 1 and 2, a crescent lock 7 is provided on the visible surface of the inner frame 33, and a crescent receiver (not shown) is provided on the visible surface of the outer frame 43. When the sliding door 10 is in the closed position, the crescent lock 7 engages with the crescent receiver (not shown), thereby locking the sliding door 10.

[0078] As described above, with regard to the joinery 1, the fixing frame 31B of the inner shoji screen 3 allows the ventilation frame 31A and the handles 6, 6 to be attached to the joinery 1. As mentioned above, when using the shoji screen 10 with the handles 6, 6 attached, if the shoji screen stopper 5 is not installed on the inner shoji screen 3, the remaining pull S1 will not be formed, which may significantly reduce the operability and durability of the handles 6 provided on the outer shoji screen 4.

[0079] However, as shown in Figure 7, it is difficult to fix the shoji stopper 5 to the side surface on the X2 side of the outdoor mounting member 312 of the ventilation frame 31A. If the shoji stopper 5 is forcibly installed on the outdoor wall portion 312a of the outdoor mounting member 312, the outdoor ventilation hole 31H will be blocked, reducing the ventilation performance of the door 1. Also, as shown in Figure 6, strong stress is applied to the shoji stopper 5 by the outer frame 43 of the outer shoji 4, so a backing plate 53 is necessary for fixing, but as shown in Figure 7, it is difficult to provide the backing plate 53 on the inside of the outdoor wall portion 312a.

[0080] The ventilation frame section 31A of this disclosure is constructed by incorporating a metal outdoor mounting member 312 and a resin first resin cover member 313 inside the frame body 311. Therefore, the vertical length of the upper frame 31 is the same as that of the upper frame in a normal frame body 30. This configuration eliminates the need to provide an additional ventilation frame below the upper frame, allowing the vertical length of the ventilation frame section 31A to be neat and compact, thereby improving the aesthetic design of the joinery 1.

[0081] Therefore, if the outdoor wall portion 312a of the outdoor mounting member 312 is made longer in the vertical direction to facilitate the installation of the back plate 53 of the shoji stopper 5, the above-mentioned effect will be lost. For the reasons above, it is difficult to install a handle alongside a shoji screen that has a ventilation frame, and there is a problem that only one of the ventilation frame or the handle can be installed. Also, as mentioned above, in the case of a door 1 in which a large opening is provided by the frame 2, the weight of the shoji screen 10 becomes a burden, so the installation of assist handle type handles 6,6 to assist in opening operations is strongly desired.

[0082] The above problem can be solved by configuring the upper frame 21 of the inner sliding door 3, on which the sliding door stopper 5 is provided, with two types of frame parts: a ventilation frame part 31A and a fixed frame part 31B. With this configuration, even for large doors and windows 1, it is possible to provide both ventilation performance that allows ventilation even when the sliding door 10 is closed, and an assist handle that assists in opening and closing the sliding door 10.

[0083] As shown in Figure 8, the fixed frame 31B securely fixes the shoji stopper 5 and allows air flowing in from the outdoor ventilation hole 31H and intermediate ventilation holes 3122, 3122 of the ventilation frame 31A to flow into the room via the first resin cover member 313 provided on the fixed frame 31B. Since the operating plate 314 and the operating unit OP are provided in common from the ventilation frame 31A to the fixed frame 31B, sliding the operating unit OP in the left-right direction allows the resin cover ventilation hole 313b to communicate with or block the outdoor side as the operating plate 314 rotates.

[0084] This configuration allows the shoji stopper 5 and the handles 6, 6 to be attached to the door 1 while maintaining the excellent ventilation, watertightness, and design features of the door 1. This makes it possible to form a retaining section S1 on the door 1, improving the ventilation, watertightness, and design of the ventilation frame 31A, as well as the operability and durability of the handles 6 provided on the outer shoji 4.

[0085] This disclosure is not limited to the embodiments described above and may be modified as appropriate.

[0086] For example, as shown in Figure 10, in the shoji screen 10B of the door 1B, the shape of the resin cover ventilation holes 3133 and 4133 provided in the frame bodies 30B and 40B may be made smaller than the resin cover ventilation holes 313b and 413b of this embodiment. By making the shape of the resin cover ventilation holes 3133 and 4133 smaller in both the left-right and up-down directions, the number of ventilation holes arranged in the first resin cover members 313 and 413 can be increased. Furthermore, the shape of the indoor ventilation holes is not limited to a shape that is long in the left-right direction, and multiple slit-shaped ventilation holes that are long in the up-down direction may be arranged along the direction in which the upper frame 21 extends.

[0087] Furthermore, as shown in Figure 11, a handle 6B may be used that protrudes significantly in the circumferential direction of the frame 40 and has a small width in the depth direction. Due to the effect of the shoji stopper 5, a remaining pull area S2 is formed that is larger in the left-right direction than the remaining pull area S1, so even a handle with a large width in the left-right direction, such as the handle 6B, can reliably prevent contact with the inner frame 33.

[0088] Furthermore, the left-right ratio of the ventilation frame section 31A and the fixed frame section 31B in the upper frame 21 is not limited to the arrangement shown in Figure 9. For example, if it is desired to leave a larger remaining gap S1 in the left-right direction, the mounting position of the shoji stopper 5 in the upper frame 21 can be moved toward the inner frame 33, and accordingly, the left-right length of the fixed frame section 31B may be made longer than in the embodiment. The ventilation frame section 31A and the fixed frame section 31B can be configured to any length depending on the intended use.

[0089] Furthermore, the ventilation frame 31V may be provided not only on the upper frame of the frame body 30, but also on the lower frame.

[0090] Furthermore, in this embodiment, the shoji stopper, the fixed wall member, and the mounting member having the second ventilation hole are provided on the X2 side (outside) of the inner shoji 3, but the disclosure is not limited thereto. As a modification, the shoji stopper, the fixed wall member, and the mounting member may be provided on the X1 side (inside) of the outer shoji 4. In that case, the first ventilation hole is formed on the outside surface of the frame body. [Explanation of Symbols]

[0091] 1 Door / window, 2 Frame, 3 Inner shoji screen, 4 Outer shoji screen, 5 Shoji screen stopper, 24 Vertical frame, 31 Top frame, 31V Ventilation frame, 31H Outdoor ventilation hole (second ventilation hole), 311 Frame body, 311d Indoor visible surface, 311H Opening, 3114a Indoor ventilation hole (first ventilation hole), 311c Outdoor visible surface, 312 Outdoor mounting member (mounting member), 319 Outdoor fixing wall member (fixing member), 53 Backing plate

Claims

1. A ventilation frame having a ventilation function inside the upper frame of a shoji screen that is slidably installed within the frame, A frame body having a first ventilation hole formed on one of its visible surfaces, the indoor side and the outdoor side, An attachment member is placed on the frame body and has a second ventilation hole formed on the other visible surface, A ventilation frame comprising: a fixed wall member disposed on the frame body, to which a shoji screen stopper can be attached that restricts the sliding movement of the shoji screen without forming the second ventilation hole on the other visible surface.

2. The aforementioned first ventilation hole is an indoor ventilation hole formed on the indoor surface, The aforementioned mounting member is positioned on the outdoor side and outer sash side of the frame body, and is an outdoor mounting member having an outdoor ventilation hole, which serves as the second ventilation hole, formed on its outdoor surface. The ventilation frame according to claim 1, wherein the fixed wall member is positioned on the outdoor side and vertical frame side of the frame body, and is an outdoor fixed wall member on which a shoji screen stopper that restricts the sliding movement of the shoji screen can be attached without forming an outdoor ventilation hole as the second ventilation hole on the outdoor surface.

3. The frame body has an exterior-facing surface portion in which a slit-shaped opening extending in the longitudinal direction of the ventilation frame is formed. The exterior mounting member is attached to the opening on the exterior sash side. The ventilation frame according to claim 2, wherein the exterior fixed wall member is attached to the opening on the vertical frame side.

4. The ventilation frame further comprises the shoji screen stopper, The ventilation frame according to claim 2, wherein the shoji stopper is fixed to the exterior fixing wall member by sandwiching the exterior fixing wall member between itself and the backing plate.

5. A door or window fitting comprising a ventilation frame as described in any one of claims 1 to 4.

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