Doors and windows

Abstract

To provide a fitting whose door end stile can be enhanced in fire resistance.SOLUTION: A door end stile 33 of a door A is provided in its hollow part 45 with a main lock case 13, an auxiliary lock case, and a reinforcing member 60. A first opening in which an operation handle is disposed, a second openings 72,82 in which a main lock is disposed, and a third opening in which an auxiliary lock is disposed are formed in at least an indoor depth surface part 42 of the door end stile 33. The reinforcing member 60 has a reinforcing depth piece portion 61 along an outdoor depth surface portion 41 and a reinforcing depth piece portion 62 along an inner peripheral depth surface portion 43. The first thermally expansive fire-resistant material 90 is provided on a surface 621 on the outer peripheral side of the reinforcing depth piece portion 62. At least a part of the first thermally expansive fire-resistant material 90 is disposed on the indoor side of the main lock case 13 and the auxiliary lock case.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a fitting in which a shoji door is disposed in a frame so as to be openable and closable.

Background Art

[0002] Conventionally, as a fitting, a door for a closet door is known which includes a frame and a shoji door configured to include an outer frame disposed in the frame and an inner unit shoji door disposed within the outer frame (see Patent Document 1). The outer frame is configured by vertically assembling outer frame members having a hollow portion along the longitudinal direction in a vertical orientation. Each outer frame member is composed of a composite member combining a metal portion having a hollow portion and a resin portion, and the outer frame member on the hanging side (hanging vertical frame) is attached to the frame via a hinge. In addition, a main lock, an auxiliary lock, and an operation handle are attached to the outer frame member on the door end side (door end vertical frame).

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 door described in Patent Document 1, the attachment portion of the door end vertical frame to which the main lock, the auxiliary lock, and the operation handle are attached is processed with attachment holes and the like, and there is a risk that flames may enter from the attachment portion or the like during a fire.

[0005] An object of the present invention is to provide a fitting capable of improving the fire resistance of the door end vertical frame.

Means for Solving the Problems

[0006] The door fitting of the present invention comprises a frame and a sliding door that is opened and closed within the frame, the sliding door having a frame body composed of an upper frame, a lower frame, a door edge vertical frame and a hinge vertical frame, and a face material, the door edge vertical frame having an exterior facing surface, an interior facing surface, an inner perimeter facing surface and an outer perimeter facing surface that form a hollow section, the hollow section of the door edge vertical frame having a main lock case on which an operating handle and a main lock are provided, an auxiliary lock case which is positioned at a vertical distance from the main lock case and is provided with an auxiliary lock, and a reinforcing member which reinforces the door edge vertical frame, the reinforcing member is the The door frame has a reinforcing facing portion along the exterior facing portion and a reinforcing concealing portion along the inner circumferential concealing portion, and at least the interior facing portion of the door frame has a first opening where the operating handle is placed, a second opening where the main lock is placed, and a third opening where the auxiliary lock is placed, and a first thermal expansion fire-resistant material is provided on the outer circumferential surface of the reinforcing concealing portion that closes the first opening, the second opening, and the third opening, and at least a portion of the first thermal expansion fire-resistant material is placed on the interior side of the main lock case and the auxiliary lock case. The door fitting of the present invention comprises a frame and a sliding door that is opened and closed within the frame, the sliding door having a frame body composed of an upper frame, a lower frame, a door edge vertical frame and a hinge vertical frame, and a face material, the door edge vertical frame being composed of a metal frame material having an exterior facing surface portion, an interior facing surface portion, an inner perimeter facing surface portion and an outer perimeter facing surface portion that form a hollow portion, and a resin frame material positioned on the interior side relative to the metal frame material, the door edge vertical frame having engaging portions formed at both ends of the interior facing surface portion in the facing direction of the door edge vertical frame, and the resin frame material engaging with the door edge The hollow portion of the vertical frame is provided with a main lock case on which an operating handle and a main lock are installed, an auxiliary lock case positioned vertically apart from the main lock case and on which an auxiliary lock is installed, and a reinforcing member that reinforces the door frame, the reinforcing member having a reinforcing facing piece along the exterior facing surface and a reinforcing facing piece along the inner circumferential facing surface, the exterior facing surface, the interior facing surface and the reinforcing facing piece having a first opening on which the operating handle is installed and the main lock is installed A second opening and a third opening in which the auxiliary lock is arranged are formed, and a first thermal expansion fire-resistant material is provided on the outer peripheral surface of the reinforcing visible piece to close the first opening, the second opening and the third opening formed on the interior visible surface, respectively. The first thermal expansion fire-resistant material is formed continuously in the vertical direction, and is spaced apart from the reinforcing visible piece in the depth direction of the door frame, at least a portion of the upper part of the first thermal expansion fire-resistant material is positioned on the interior side relative to one of the lock cases, the main lock case and the auxiliary lock case, and at least a portion of the lower part of the first thermal expansion fire-resistant material is positioned on the interior side relative to the other lock case, the interior surface of the reinforcing visible piece is provided with a second thermal expansion fire-resistant material that is smaller than the vertical dimension of the first thermal expansion fire-resistant material, and the second thermal expansion fire-resistant material is positioned between the second opening and the third opening and on the inner peripheral side of the reinforcing visible piece. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a door frame that can improve fire resistance in the vertical frame of a door. [Brief explanation of the drawing]

[0008] [Figure 1] An interior view showing the door according to this embodiment. [Figure 2] A vertical cross-sectional view showing the main part of the door according to the above embodiment. [Figure 3] A cross-sectional view showing the main part of the door according to the above embodiment. [Figure 4] A cross-sectional view showing the main part of the door according to the above embodiment during a fire. [Modes for carrying out the invention]

[0009] [Structure of this embodiment] Embodiments of the present invention will be described below with reference to the drawings. In Figures 1 to 3, the terrace door 1 according to this embodiment is configured to open outwards and comprises a door frame 2 (frame body) and a door body 3 (sash) that is arranged to open and close on the door frame 2. The door frame 2 is constructed with a vertically dominant frame and comprises an upper frame 21, a lower frame 22, a door edge vertical frame 23, and a hinge vertical frame 24 (left and right vertical frames). The door body 3 is constructed with a vertically dominant frame and comprises a frame body consisting of an upper stile 31, a lower stile 32, a door edge vertical stile 33, and a hinge vertical stile 34 (left and right vertical stiles), and a surface material 35 such as a glass panel. In the following explanation, the left-right direction of door 1 is defined as the X-axis, the up-down direction of door 1 is defined as the Y-axis, and the depth direction of door 1 is defined as the Z-axis. The X, Y, and Z axes are mutually orthogonal.

[0010] The upper frame 21, the door edge vertical frame 23, and the hinge vertical frame 24 are constructed as composite frame materials, each consisting of a metal frame body with a hollow cross-section and a resin member engaged with the indoor side of the frame body. Each frame body is integrally formed from an aluminum extruded profile. Each resin member is integrally formed from a resin extruded profile and engages with each frame body. The door edge vertical frame 23 is provided with receiving members such as lock receivers that receive latch bolts 111 and deadbolts 121, 141 (see Figures 2 and 3), which will be described later. The hinge vertical frame 24 is connected to the hinge vertical frame 34, which will be described later, via hinges. The lower frame 22 is made of metal (made from an aluminum extruded profile in this embodiment) and is formed in a hollow cross-section, with a resin cover attached to its indoor side and inner circumference. The upper frame 21, lower frame 22, door edge vertical frame 23, and hinge vertical frame 24 are appropriately provided with heat-expandable fire-resistant material that insulates the interior from the exterior through thermal expansion.

[0011] The upper frame 31, lower frame 32, door edge vertical frame 33, and hinge vertical frame 34 each have a metal frame material on the exterior side and a resin frame material positioned on the interior side relative to the metal frame material. The metal frame material is integrally formed from an aluminum extruded profile. The resin frame material is integrally formed from a resin extruded profile and is engaged with the metal frame material. The metal frame material is formed in a hollow frame shape in cross-section, with a hollow portion formed along its entire length. Here, the metal frame material of the door edge vertical frame 33 is the metal frame material 331 (see Figures 2 and 3), and the resin frame material of the door edge vertical frame 33 is the resin frame material 332 (see Figure 3).

[0012] As shown in Figures 2 and 3, the metal frame material 331 has an exterior facing surface portion 41, an interior facing surface portion 42, an inner circumferential facing surface portion 43, and an outer circumferential facing surface portion 44, which together form a hollow portion 45 along the entire length of the door frame vertical stile 33 in the Y-axis direction. The hollow portion 45 is formed to be horizontally elongated, with its dimension in the X-axis direction being larger than its dimension in the Y-axis direction. The inner circumferential portion of the exterior facing surface portion 41 extends further inward than the inner circumferential facing surface portion 43 and is formed as an exterior holding surface portion 411 that holds the exterior surface of the facing material 35. The outer circumferential portion of the exterior facing surface portion 41 is formed as an L-shaped extension portion 412 that extends outward. At both ends of the interior facing surface portion 42 in the X-axis direction, hook-shaped hook portions 421 and 422 are formed as engaging portions that engage with the resin frame material 332. The outer perimeter facing surface portion 44 extends further inward than the interior facing surface portion 42, and covers the engaging piece portion 522 (described later) from the door edge side. This improves the fire resistance on the interior door edge side.

[0013] As shown in Figure 3, the resin frame material 332 has a resin main surface portion 51 along the X-axis direction, hook-shaped engaging pieces 521 and 522 extending outward from the resin main surface portion 51, and contact pieces 531 and 532 positioned between the engaging pieces 521 and 522 and extending outward from the resin main surface portion 51. The portion extending inward from the engaging piece portion 521 is formed as an indoor holding surface portion 511 that holds the indoor surface of the surface material 35. The engaging piece portion 521 engages with the hook portion 421 and the engaging piece portion 522 engages with the hook portion 422. The tips of the contact pieces 531 and 532 are positioned close enough to contact the indoor surface of the indoor visible surface portion 42.

[0014] The hollow portion 45 of the metal frame material 331 contains a main lock case 13 on which an operating handle 11 and a main lock 12 are provided, an auxiliary lock case 15 which is spaced apart from the main lock case 13 in the Y-axis direction and is provided with an auxiliary lock 14, and a reinforcing member 60 which reinforces the door edge vertical frame 33. The latch bolt 111 of the operating handle 11 and the deadbolt 121 of the main lock 12 are provided to extend and retract in the Y-axis direction relative to the main lock case 13, and the handle lever 112 of the operating handle 11 and the operating part 122 of the main lock 12 are provided to protrude in the Z-axis direction relative to the main lock case 13. In addition, the deadbolt 141 of the auxiliary lock 14 is provided to extend and retract in the Y-axis direction relative to the auxiliary lock case 15, and the operating part 142 of the auxiliary lock 14 is provided to protrude in the Z-axis direction relative to the auxiliary lock case 15. The reinforcing member 60 has a reinforcing surface portion 61 along the exterior surface portion 41 and a reinforcing projection portion 62 along the inner circumference projection portion 43. Note that the handle lever 112 and operating portion 122 are not shown in Figure 3.

[0015] The exterior surface 41, the interior surface 42, the resin body surface 51, and the reinforcing surface piece 61 each have a first opening 71, 81 where the operating handle 11 is placed, a second opening 72, 82 where the main lock 12 is placed, and a third opening 73, 83 where the auxiliary lock 14 is placed. The first openings 71, 81 and the second openings 72, 82 are spaced apart in the Y-axis direction, and the third openings 73, 83 are spaced further apart in the Y-axis direction than the second openings 72, 82. The exterior surface 41, the interior surface 42, and the resin body surface 51 each have the same opening shape, so the first opening 71, the second opening 72, and the third opening 73 are added as appropriate. The reinforcing surface piece 61 has a first opening 81, a second opening 82, and a third opening 83. The main lock case 13 and the auxiliary lock case 15 are attached to the outer peripheral surface 44.

[0016] A first thermal expansion fire-resistant material 90 is attached to the outer surface 621 of the reinforcing piece 62, covering the first opening 71, second opening 72, and third opening 73 of the interior facing surface 42. The first thermal expansion fire-resistant material 90 is formed in a continuous strip shape in the Y-axis direction. The upper part 91 of the first thermal expansion fire-resistant material 90 is positioned on the inner circumference and interior side relative to the auxiliary lock case 15. The lower part 92 of the first thermal expansion fire-resistant material 90 is positioned on the inner circumference and interior side relative to the main lock case 13. Furthermore, the first thermal expansion fire-resistant material 90 is positioned at a distance from the reinforcing piece 61 in the Z-axis direction, so that most of the upper part 91 and lower part 92 of the first thermal expansion fire-resistant material 90 are not positioned facing the auxiliary lock case 15 and the main lock case 13 in the X-axis direction.

[0017] A second thermal-expandable fire-resistant material 95 is attached to the interior surface of the reinforcing facing piece 61, which thermally expands toward the interior facing surface 42 in the Y-axis direction between the second openings 72, 82 and the third openings 73, 83. The second thermal-expandable fire-resistant material 95 is formed in a rectangular shape that is continuous in the Y-axis direction. The vertical dimension of the second thermal-expandable fire-resistant material 95 is smaller than the vertical dimension of the first thermal-expandable fire-resistant material 90. The second thermal-expandable fire-resistant material 95 is attached to the reinforcing facing piece 61 at a position between the second opening 82 and the third opening 83. In addition, the second thermal-expandable fire-resistant material 95 is attached to the inner circumference side of the reinforcing facing piece 61, in this embodiment, from the corner 63 where the reinforcing facing piece 61 is continuous with the reinforcing facing piece 62 to approximately the center position in the X-axis direction of the second opening 82 (third opening 83).

[0018] In the event of a fire (indoor or outdoor fire), the door 1 above will be protected from fire at the door frame 33 as follows: In case of a fire, the first thermally expandable refractory 90 thermally expands toward the outer peripheral side in the X-axis direction as shown in FIG. 4. The lower portion 92 of the first thermally expandable refractory 90 enters between the main ingot case 13 and the indoor finding surface portion 42 while thermally expanding, and covers and closes the first opening 71, the second opening 72, and the periphery thereof of the indoor finding surface portion 42 disposed to face the main ingot case 13 in the Z-axis direction. The upper portion 91 of the first thermally expandable refractory 90 also thermally expands in the same manner as the lower portion 92, enters between the auxiliary ingot case 15 and the indoor finding surface portion 42, and covers and closes the third opening 73 and the periphery thereof of the indoor finding surface portion 42 disposed to face the auxiliary ingot case 15 in the Z-axis direction. Further, the intermediate portion of the first thermally expandable refractory 90 that is continuous with the upper portion 91 and the lower portion 92 thermally expands to cover and close at least the corner portion 47 where the indoor finding surface portion 42 and the inner peripheral prospecting surface portion 43 are continuous from inside the metal frame member 331. Note that the corner portion 47 is a portion where through holes such as cracks are likely to occur when thermal expansion occurs in the metal frame member 331 or pressure is applied during a fire. Also, in case of a fire, the second thermally expandable refractory 95 thermally expands toward the indoor side in the Z-axis direction as shown in FIG. 4. Thereby, the second thermally expandable refractory 95 closes the portion between the reinforcing finding piece portion 61 and the indoor finding surface portion 42, particularly the inner peripheral side portion. Here, since the second thermally expandable refractory 95 comes into contact with the above-described intermediate portion of the first thermally expandable refractory, the thermally expandable refractory covering and closing the corner portion 47 can be made dense, and thus the fire resistance at the corner portion 47 can be further improved. In this way, fire prevention is carried out at the vertical frame 33 at the door end during a fire.

[0019] [Modification Example] In the above embodiment, the main ingot case 13 is disposed below the auxiliary ingot case 15, but it may be disposed above the auxiliary ingot case 15. In this case, the first openings 71, 81, the second openings 72, 82, and the third openings 73, 83 are also disposed at positions corresponding to the arrangements of the ingot cases 13, 15. In the above embodiment, the second thermally expandable refractory 95 is provided. However, if the first thermally expandable refractory 90 alone can sufficiently perform fire prevention, the configuration of the second thermally expandable refractory 95 may be omitted. Further, when the configuration of the second thermally expandable refractory 95 is omitted, the role of the second thermally expandable refractory 95 may be assigned to the first thermally expandable refractory 90 by forming the finding dimension of the first thermally expandable refractory 90 in the Z-axis direction larger. In the above embodiment, the first thermally expandable refractory 90 is formed continuously in the Y-axis direction, but it may be divided into an upper portion 91 and a lower portion 92. In this case, since there is no continuous portion between the upper portion 91 and the lower portion 92, the material cost required for the first thermally expandable refractory 90 can be reduced. In the above embodiment, the second thermally expandable refractory 95 is provided at a position on the inner peripheral side of the reinforcing finding piece portion 61, but it may be arranged closer to the outer peripheral side than this. In the above embodiment, the door end vertical frame 33 is configured as a composite frame having a metal frame member 331 and a resin frame member 332, but it may be a metal frame member integrally formed by, for example, an aluminum extrusion profile. In the above embodiment, the terrace door 1 has been described as a fitting, but any fitting having a door end vertical frame 33 may be used.

[0020] [Summary of the Invention] The door fitting of the present invention comprises a frame and a sliding door that is opened and closed within the frame, the sliding door having a frame body composed of an upper frame, a lower frame, a door edge vertical frame and a hinge vertical frame, and a face material, the door edge vertical frame having an exterior facing surface, an interior facing surface, an inner perimeter facing surface and an outer perimeter facing surface that form a hollow section, the hollow section of the door edge vertical frame having a main lock case on which an operating handle and a main lock are provided, an auxiliary lock case which is positioned at a vertical distance from the main lock case and is provided with an auxiliary lock, and a reinforcing member which reinforces the door edge vertical frame, the reinforcing member is the The door frame has a reinforcing facing portion along the exterior facing portion and a reinforcing concealing portion along the inner circumferential concealing portion, and at least the interior facing portion of the door frame has a first opening where the operating handle is placed, a second opening where the main lock is placed, and a third opening where the auxiliary lock is placed, and a first thermal expansion fire-resistant material is provided on the outer circumferential surface of the reinforcing concealing portion that closes the first opening, the second opening, and the third opening, and at least a portion of the first thermal expansion fire-resistant material is placed on the interior side of the main lock case and the auxiliary lock case. According to the door fittings of the present invention, the exterior surface can be reinforced with the reinforcing facing piece to improve fire resistance against outdoor fires, and the interior surface can be reinforced with the reinforcing facing piece to reinforce the interior portion of the door frame that holds the facing material. Furthermore, in the event of a fire, the first thermally expanding fire-resistant material, arranged as described above, expands thermally in the facing direction of the door frame, filling the gap between the main lock case and auxiliary lock case and the interior surface, thereby closing the first, second, and third openings formed on the interior surface of the door frame. Thus, the fire resistance of the door frame of the present invention can be improved.

[0021] In the building fittings of the present invention, the first thermal expansion fire-resistant material is formed continuously in the vertical direction, and at least a portion of the upper part of the first thermal expansion fire-resistant material may be positioned on the interior side relative to one of the main lock case and the auxiliary lock case, and at least a portion of the lower part of the first thermal expansion fire-resistant material may be positioned on the interior side relative to the other of the main lock case and the auxiliary lock case. With this configuration, the thermal expansion of the upper and lower parts of the first thermal expansion fire-resistant material can seal the first, second, and third openings, and the intermediate portion of the first thermal expansion fire-resistant material that is continuous with its upper and lower parts can be thermally expanded between the second and third openings, thereby further improving fire resistance around the lock on the door frame.

[0022] The door and window of the present invention is characterized in that the first thermal expansion fire-resistant material is arranged at a distance from the reinforcing facing piece in the depth direction of the door frame, a second thermal expansion fire-resistant material is provided on the interior surface of the reinforcing facing piece, and the vertical dimension of the second thermal expansion fire-resistant material is smaller than the vertical dimension of the first thermal expansion fire-resistant material. With this configuration, the fire resistance around the lock on the door frame can be improved by allowing the second thermal expansion fire-resistant material, arranged as described above, to expand between the second and third openings. Furthermore, compared to, for example, a configuration in which the depth of the first thermal expansion fire-resistant material, which is continuous in the vertical direction, is increased, and the first thermal expansion fire-resistant material is effectively expanded between the second and third openings, the amount of thermal expansion fire-resistant material can be reduced, thereby reducing material costs. In addition, both the first and second thermal expansion fire-resistant materials can be expanded between the second and third openings, further improving fire resistance. Furthermore, for example, if the first thermal expansion fire-resistant material is divided into upper and lower sections and arranged accordingly, it may be possible to further reduce the material costs used for the thermal expansion fire-resistant material.

[0023] In the door frame of the present invention, the door frame is composed of a metal frame material having an exterior facing surface, an interior facing surface, an inner circumferential facing surface, and an outer circumferential facing surface, and a resin frame material positioned on the interior side relative to the metal frame material. Engaging portions are formed at both ends of the interior facing surface in the facing direction of the door frame, into which the resin frame material engages. The first thermal expansion fire-resistant material is formed continuously in the vertical direction, and the second thermal expansion fire-resistant material may be positioned on the inner circumferential side of the reinforcing facing piece. With this configuration, during a fire, cracks and other through-holes are likely to occur in the inner circumferential portion that holds the facing material, particularly in the corners where the inner circumferential facing portion and the interior facing portion are continuous, where the engaging portion is formed and the resin frame material engages. However, both the first thermal expansion fire-resistant material and the second thermal expansion fire-resistant material described above expand due to heat, allowing the corners to be tightly sealed from within the metal frame material.

[0024] The door fitting of the present invention comprises a frame and a sliding door that is opened and closed within the frame, the sliding door having a frame body composed of an upper frame, a lower frame, a door edge vertical frame and a hinge vertical frame, and a face material, the door edge vertical frame being composed of a metal frame material having an exterior facing surface portion, an interior facing surface portion, an inner perimeter facing surface portion and an outer perimeter facing surface portion that form a hollow portion, and a resin frame material positioned on the interior side relative to the metal frame material, the door edge vertical frame having engaging portions formed at both ends of the interior facing surface portion in the facing direction of the door edge vertical frame, and the resin frame material engaging with the door edge The hollow portion of the vertical frame is provided with a main lock case on which an operating handle and a main lock are installed, an auxiliary lock case positioned vertically apart from the main lock case and on which an auxiliary lock is installed, and a reinforcing member that reinforces the door frame, the reinforcing member having a reinforcing facing piece along the exterior facing surface and a reinforcing facing piece along the inner circumferential facing surface, the exterior facing surface, the interior facing surface and the reinforcing facing piece having a first opening on which the operating handle is installed and the main lock is installed A second opening and a third opening in which the auxiliary lock is arranged are formed, and a first thermal expansion fire-resistant material is provided on the outer peripheral surface of the reinforcing visible piece to close the first opening, the second opening and the third opening formed on the interior visible surface, respectively. The first thermal expansion fire-resistant material is formed continuously in the vertical direction, and is spaced apart from the reinforcing visible piece in the depth direction of the door frame, at least a portion of the upper part of the first thermal expansion fire-resistant material is positioned on the interior side relative to one of the lock cases, the main lock case and the auxiliary lock case, and at least a portion of the lower part of the first thermal expansion fire-resistant material is positioned on the interior side relative to the other lock case, the interior surface of the reinforcing visible piece is provided with a second thermal expansion fire-resistant material that is smaller than the vertical dimension of the first thermal expansion fire-resistant material, and the second thermal expansion fire-resistant material is positioned between the second opening and the third opening and on the inner peripheral side of the reinforcing visible piece. According to the building component of the present invention, it is possible to construct a building component that can achieve the same effects and advantages as described above. [Explanation of Symbols]

[0025] 1...Door (joinery), 11...Operating handle, 111...Latch bolt, 112...Handle lever, 12...Main lock, 121,141...Deadbolt, 122,142...Operating part, 13...Main lock case, 14...Auxiliary lock, 15...Auxiliary lock case, 2...Door frame, 21...Upper frame, 22...Lower frame, 23...Door edge vertical frame, 24...Hinge vertical frame, 3...Door body, 31...Upper frame, 32...Lower frame, 33...Door edge vertical frame, 331...Metal frame material, 332...Resin frame material, 34...Hinge vertical frame, 35...Face material, 41...Exterior visible surface, 411...Exterior holding surface, 412... 42...Indoor visible surface, 421, 422...Hook part, 43...Inner circumference visible surface, 44...Outer circumference visible surface, 45...Hollow part, 47...Corner part, 51...Resin body surface, 511...Indoor holding surface, 521, 522...Engaging piece, 531, 532...Contact piece, 60...Reinforcement material, 61...Reinforcement visible piece, 62...Reinforcement visible piece, 621...Surface, 63...Corner part, 71, 81...First opening, 72, 82...Second opening, 73, 83...Third opening, 90...First thermal expansion fire-resistant material, 91...Upper part, 92...Lower part, 95...Second thermal expansion fire-resistant material.

Claims

1. It comprises a frame and a sliding door that is arranged to open and close within the frame, The aforementioned shoji screen has a frame body composed of an upper frame, a lower frame, a door edge vertical frame, and a hinge-end vertical frame, and a facing material. The aforementioned door frame has an exterior facing surface, an interior facing surface, an inner perimeter facing surface, and an outer perimeter facing surface that form a hollow section. In the hollow portion of the door frame, a main lock case is provided, which contains an operating handle and a main lock; an auxiliary lock case is positioned vertically apart from the main lock case and contains an auxiliary lock; and a reinforcing member is provided to reinforce the door frame. The reinforcing material has a reinforcing facing portion along the exterior facing portion and a reinforcing facing portion along the inner circumferential facing portion, At least the interior-facing portion of the door frame has a first opening where the operating handle is located, a second opening where the main lock is located, and a third opening where the auxiliary lock is located. A first thermal expansion fire-resistant material is provided on the outer surface of the reinforcing piece that closes the first opening, the second opening, and the third opening. At least a portion of the first thermal expansion fire-resistant material is positioned on the interior side of the main lock case and the auxiliary lock case. The first thermal expansion fire-resistant material is arranged at intervals from the reinforcing facing portion in the depth direction of the door frame, A second thermal expansion fire-resistant material is provided on the interior surface of the reinforcing piece, positioned between the second and third openings. The vertical dimension of the second thermal expansion fire-resistant material is smaller than the vertical dimension of the first thermal expansion fire-resistant material. A type of joinery characterized by its features.

2. In the joinery described in claim 1, The first thermal expansion fire-resistant material is divided into upper and lower sections and arranged accordingly. A type of joinery characterized by its features.

3. In the joinery described in claim 1, The first thermal expansion fire-resistant material is formed continuously in the vertical direction, The upper part of the first thermal expansion fire-resistant material is positioned on the interior side relative to one of the lock cases, the main lock case and the auxiliary lock case, at least a portion thereof. At least a portion of the lower part of the first thermal expansion fire-resistant material is positioned on the interior side relative to the other of the main lock case and the auxiliary lock case. A type of joinery characterized by its features.

4. In the joinery described in claim 1, The door frame is composed of a metal frame material having an exterior facing surface, an interior facing surface, an inner perimeter facing surface, and an outer perimeter facing surface, and a resin frame material positioned on the interior side relative to the metal frame material. At both ends of the interior facing surface portion of the door frame in the facing direction, engaging portions are formed, into which the resin frame material engages. The first thermal expansion fire-resistant material is formed continuously in the vertical direction, The second thermal expansion fire-resistant material is positioned on the inner circumference side of the reinforcing surface portion. A type of joinery characterized by its features.

5. It comprises a frame and a sliding door that is arranged to open and close within the frame, The aforementioned shoji screen has a frame body composed of an upper frame, a lower frame, a door edge vertical frame, and a hinge-end vertical frame, and a facing material. The aforementioned door frame is composed of a metal frame material having an exterior facing surface, an interior facing surface, an inner perimeter facing surface, and an outer perimeter facing surface that form a hollow section, and a resin frame material positioned on the interior side relative to the metal frame material. At both ends of the interior facing surface portion of the door frame in the facing direction, engaging portions are formed, into which the resin frame material engages. In the hollow portion of the door frame, a main lock case is provided, which contains an operating handle and a main lock; an auxiliary lock case is positioned vertically apart from the main lock case and contains an auxiliary lock; and a reinforcing member is provided to reinforce the door frame. The reinforcing material has a reinforcing facing portion along the exterior facing portion and a reinforcing facing portion along the inner circumferential facing portion, The exterior surface, the interior surface, and the reinforcing piece are each formed with a first opening where the operating handle is located, a second opening where the main lock is located, and a third opening where the auxiliary lock is located. On the outer periphery side of the reinforcing piece, a first thermal expansion fire-resistant material is provided to close the first opening, the second opening, and the third opening, which are respectively formed on the interior facing surface. The first thermal expansion fire-resistant material is formed continuously in the vertical direction, and the first thermal expansion fire-resistant material is arranged at a distance from the reinforcing facing portion in the depth direction of the door frame. The upper part of the first thermal expansion fire-resistant material is positioned on the interior side relative to one of the lock cases, the main lock case and the auxiliary lock case, at least a portion thereof. At least a portion of the lower part of the first thermal expansion fire-resistant material is positioned on the interior side relative to the other of the main lock case and the auxiliary lock case. A second thermal expansion fire-resistant material, smaller in height than the vertical dimension of the first thermal expansion fire-resistant material, is provided on the interior surface of the reinforcing visible piece. The second thermal expansion fire-resistant material is positioned between the second and third openings and on the inner circumference side of the reinforcing flashing. A type of joinery characterized by its features.

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