JP7475225B2 - Fittings - Google Patents

Description

The present invention relates to a fixture with an inner and outer screen.

Traditionally, fixtures with inner and outer shoji screens have been well known.

JP 2013-113065 A

There was a need to improve the fire resistance of building fixtures with interior and exterior sliding screens.

The purpose of this invention is to improve the fire resistance of building materials that have interior and exterior screens.

One embodiment comprises a frame body and inner and outer screens, the inner screen's joint frame has a hollow portion with a reinforcing member arranged within the hollow portion, the reinforcing member having an indoor side visible wall extended to a position where it overlaps with the lower rail in the projection direction, and a regulating portion extended to a position where it overlaps with the lower rail in the projection direction and restricts movement of the inner screen's joint frame to the inside or outside of the room, a space is formed within the hollow portion between the indoor side visible wall and the regulating portion, and the indoor side visible wall of the reinforcing member has an intumescent material arranged on its outdoor surface , and when the intumescent material expands in the event of a fire, it fills the space .

The configuration of one embodiment of the fixture can improve the fire resistance of fixtures that have interior and exterior screens.

FIG. 2 is an interior view of a fixture according to one embodiment. 1A is a vertical cross-sectional view of a fixture according to one embodiment, (a) is an overall vertical cross-sectional view, (b) is a partial vertical cross-sectional view of the upper frame, and (c) is a partial vertical cross-sectional view of the lower frame. FIG. 2 is a cross-sectional view of a fitting according to one embodiment. FIG. 2 is a cross-sectional view of a joint portion of a building fixture according to one embodiment. FIG. 1 is a diagram of the joint of a fixture according to one embodiment, where (a) is a cross-sectional view of a reinforcing metal fitting placed on an inner sash, (b) is a vertical cross-sectional view of the bottom frame and reinforcing member, and (c) is a view of the reinforcing member from the outside of the room. FIG. 1 is a diagram of the joint of a fixture according to one embodiment, where (a) is a cross-sectional view of the reinforcing metal fitting to be placed on the outer screen, (b) is a vertical cross-sectional view of the bottom frame and reinforcing member, and (c) is a view of the reinforcing member from the inside of the room. 1A and 1B are cross-sectional views of a joint portion of a fitting according to one embodiment, in which FIG. 1A shows a cross-sectional view in normal conditions, and FIG. 1A and 1B are vertical cross-sectional views of a joint portion of a fixture according to one embodiment, in which (a) is a normal cross-sectional view and (b) is a cross-sectional view during a fire.

One embodiment of the fixture will be explained with reference to the drawings, using the example of a sliding sash, in which the inner and outer sashes are fitted around the inner periphery of the frame so that they can be slid freely.

As shown in Figure 1, the fittings of this embodiment are made up of a frame body 1 formed by assembling an upper frame 11, a lower frame 12, and left and right vertical frames 13, 14 on all four sides, and an inner sash 2 and an outer sash 3 formed by assembling upper frames 21, 31, lower frames 22, 32, and left and right vertical frames 23, 33, 24, 34 on all four sides and fitting glass or other panel bodies 25, 35 on the inner sash so that they can be freely slid.

-Frame-
The upper frame 11 that constitutes the frame body 1, as shown in Figure 2 (a), comprises an upper frame main body 111 formed from a metal material such as an aluminum alloy and arranged on the inner surface of the building opening, and a resin upper frame 112 arranged on the indoor inner periphery of the upper frame main body 111.
The upper frame body 111 is composed of an indoor side member 111a having an indoor side visible wall and an inner upper rail on the concealed wall, and an outdoor side member 111b having an outer upper rail, connected by a bridge member 111c made of an insulating material such as synthetic resin.

An upper cover member 113 is arranged on the inner circumference of the upper frame body 111, between the inner upper rail and the outer upper rail, from the left vertical frame 13 to the joint portion, and an inclined piece 113a is attached to the upper cover member 113, which inclines so as to extend toward the inside of the room as it extends downward.
By bringing the lower end of the inclined piece 113a close to the upper surface of the outer screen 3, the space between the upper surface of the outer screen 3 and the lower surface of the upper frame 11 is separated from the indoor space, improving insulation.

The resin upper frame 112 has a shape that covers the inner peripheral surface of the interior wall of the interior member 111a, the interior side of the inner upper rail, and the exterior side of the interior visible wall, and has an angle portion that extends toward the interior side, and is positioned on the interior side of the inner upper rail of the interior member 111a of the upper frame body 111.

As shown in FIG. 2(b), the upper frame 11 has a windstop member 41 with a fin-shaped windstop portion 41a arranged above the joint of the inner and outer screens 2, 3, and a thermal expansion material f11 is arranged on the underside of the windstop member 41.

As shown in FIG. 2(a), the lower frame 12 constituting the frame body 1 comprises a lower frame body 121 formed from a metal material such as an aluminum alloy and arranged on the inner periphery of the building opening, and a resin lower frame 122 arranged on the indoor inner periphery of the lower frame body 121.

The lower frame body 121 has a hollow lower frame body portion 121a, an interior wall portion 121b that is continuous with the interior end portion of the lower frame body portion 121a, and an inner lower rail 121c and an outer lower rail 121d formed on the upper surface of the lower frame body portion 121a.

The lower frame 12 has a lower cover member 123 arranged between the inner lower rail 121c and the outer lower rail 121d on the inner circumference of the lower frame main body 121a, from the left vertical frame 13 to the joint section, and a thermal expansion material is arranged on the underside of the lower cover member 123.

The resin lower frame 122 has a shape that covers the inner peripheral surface of the lower frame main body portion 121a and the outdoor side surface of the indoor side wall portion 121b, has an angle portion that extends toward the indoor side, and is positioned on the indoor side of the inner lower rail 121c of the lower frame main body 121.

As shown in FIG. 2(c), the lower frame 12 has a water-stopping piece 42 with a fin-shaped water-stopping portion 42a arranged below the joint of the inner and outer screens 2, 3, and a thermal expansion material f12 is arranged on the upper surface of the water-stopping piece 42.

As shown in FIG. 3, the left vertical frame 13 constituting the frame body 1 comprises a left vertical frame main body 131 made of a metal material such as an aluminum alloy and arranged on the inner periphery of the building opening, and a resin left vertical frame 132 arranged on the indoor side inner periphery of the left vertical frame main body 131.

The left vertical frame main body 131 has a protruding piece 131a that protrudes inward from the inner circumferential surface on the outside of the room, and when the outer screen 3 is closed, the pulling block provided on the left vertical frame (door end frame) 33 of the outer screen 3 abuts against it, pulling the left vertical frame 33 toward the inside of the room.
The resin left vertical frame 132 has an angle portion extending toward the inside of the room, and is arranged on the inner circumferential surface of the left vertical frame main body 131 on the inside of the room.

As shown in FIG. 3, the right vertical frame 14 constituting the frame body 1 comprises a right vertical frame main body 141 made of a metal material such as an aluminum alloy and arranged on the inner periphery of the building opening, and a resin right vertical frame 142 arranged on the indoor side inner periphery of the right vertical frame main body 141.

The right vertical frame main body 141 has a protruding piece 141a that protrudes inward on the inner periphery on the inside of the room, and when the inner screen 2 is closed, the pulling block provided on the right vertical frame (door end frame) 24 of the inner screen 2 abuts against it, pulling the right vertical frame 24 toward the inside of the room.
The resin right vertical frame 142 has an angle portion extending toward the inside of the room, and is arranged on the inner circumferential surface of the right vertical frame main body 141 on the inside of the room.

-Inner and outer screens-
The configuration of the inner screen 2 and the outer screen 3 will be explained mainly using the inner screen 2. For the outer screen 3, only the right vertical frame (joint frame) 34, which is different from the inner screen 2, will be explained, and the configuration of the upper frame 31, lower frame 32, and door end frame 33 of the outer screen will not be explained here.

As shown in FIG. 2, the upper frame 21 that constitutes the frame of the inner screen 2 comprises an upper frame body 211 made of a metal material such as an aluminum alloy, and a resin upper frame 212 that is arranged on the inner periphery of the upper frame body 211 on the indoor side.

The upper frame body 211 has an upper frame body part 211a that has a hollow part and guides the inner upper rail upward, and an exterior glass front wall 211b that extends downward from the exterior side of the upper frame body part 211a, and a thermal expansion material f is placed in the guide part that guides the inner upper rail of the upper frame body part 211a.

The resin upper frame 212 has a resin upper frame body part 212a that covers the indoor side of the upper frame body part 211a of the upper frame body 211, and an indoor side glass frontage wall 212b that extends downward from the indoor side of the resin upper frame body part 212a, and a glass frontage is formed by the outdoor side glass frontage wall 211b and the indoor side glass frontage wall 212b.

As shown in FIG. 2, the lower frame 22 that constitutes the frame of the inner shoji screen 2 comprises a lower frame body 221 made of a metal material such as an aluminum alloy, and a resin lower frame 222 that is arranged on the inner periphery of the lower frame body 221 on the indoor side.

The lower frame main body 221 has a lower frame main body portion 221a which has a hollow portion and guides the inner lower rail, and an exterior glass front wall 221b which extends upward from the exterior side of the lower frame main body portion 221a, and a reinforcing member 7 is arranged within the hollow portion of the lower frame main body portion 221a.
In addition, a wheel 92 and a thermal expansion material f are arranged in the lower frame body portion 221a of the lower frame body 221.

The resin bottom frame 222 has a resin bottom frame body part 222a that covers the indoor side of the bottom frame body part 221a of the bottom frame body 221, and an indoor side glass frontage wall 222b that extends upward from the indoor side of the resin bottom frame body part 222a, and a glass frontage is formed by the outdoor side glass frontage wall 221b and the indoor side glass frontage wall 222b.

The left vertical frame (joint frame) 23 that constitutes the frame of the inner shoji 2 is equipped with a left vertical frame body 231 made of a metal material such as an aluminum alloy, and a resin left vertical frame 232 that covers the interior side of the left vertical frame body 231, as shown in FIG. 3.

The left vertical frame body 231 has a left vertical frame body part 231a with a hollow part, and an exterior glass frontage wall 231b that extends from the exterior side of the left vertical frame body part 231a in the inward direction, and a reinforcing member 72 such as steel is arranged along the longitudinal direction within the hollow part of the left vertical frame body part 231a.

The resin left vertical frame 232 has a resin left vertical frame body 232a that covers the interior side and outer peripheral side of the left vertical frame body 231, and a hollow interior glass frontage wall 232b that extends inward from the interior side of the resin left vertical frame body 232a, and a glass frontage is formed by the exterior glass frontage wall 231b and the interior glass frontage wall 232b.

The left vertical frame 23 has a smoke-reflecting piece provided on the outdoor side surface of the left vertical frame main body 231a and has a thermal expansion material f arranged thereon, and a protrusion piece 232c (Figure 4) is provided on the outdoor side of the resin left vertical frame main body 232a from the outer peripheral end toward the joint frame 34 of the outer screen 3.
In addition, a crescent lock 61 is provided on the outer peripheral side of the left vertical frame 23.

As shown in FIG. 3, the right vertical frame (door end frame) 24 that constitutes the frame of the inner shoji 2 comprises a right vertical frame body 241 made of a metal material such as an aluminum alloy, and a resin right vertical frame 242 that covers the interior side of the right vertical frame body 241.

The right stile main body 241 has a right stile main body portion 241a with a hollow portion, a door end groove portion 241b formed on the outer periphery of the right stile main body portion 241a, and an exterior glass frontage wall 241c extending from the exterior side of the right stile main body portion 241a in the inward direction.
A reinforcing member 7 made of a material such as steel is placed within the hollow portion of the right vertical frame main body 241a, and a pulling block and a thermal expansion material f are placed in the door end groove portion 241b.

The resin right vertical frame 242 has a resin left vertical frame body 242a that covers the interior side of the right vertical frame body 241a and the door tip groove 241b of the right vertical frame body 241, and an interior glass frontage wall 242b that extends inward from the interior side of the resin left vertical frame body 242a, and a glass frontage is formed by the exterior glass frontage wall 241c and the interior glass frontage wall 242b.

As shown in Figure 3, the right vertical frame (joint frame) 34 that constitutes the outer screen 3 is made of a metal material such as an aluminum alloy, and has a right vertical frame main body 34a with a hollow portion and a panel opening 34b formed on the inner periphery of the right vertical frame main body 34a, and a reinforcing member 73 such as steel is arranged along the longitudinal direction within the hollow portion of the right vertical frame main body 34a.

The right vertical frame 34 has a smoke-reflecting piece provided on the indoor side of the right vertical frame main body 34a, and a heat-expandable material f is arranged on it, and an airtight material is provided on the indoor side of the right vertical frame main body 34a from the outer peripheral end toward the joining frame 23 of the inner screen 2.
In addition, a crescent receiver 62 is provided on the interior side of the right vertical frame 34.

(Fireproof structure of inner and outer sliding screen joints)
In the fixture of this embodiment, a reinforcing member made of a metal material such as steel is placed within the hollow portion of the frame body, improving strength and fire resistance.
In particular, the reinforcing members placed on the joint frames of the inner and outer screens not only increase the strength of the joint frames themselves, but also prevent the inner and outer screens from coming off the frame, thereby improving fire resistance.
This will be explained in further detail below.

The reinforcing member 72 arranged on the left vertical frame (joint frame) 23 of the inner shoji 2 has a first reinforcing member 721 arranged along the longitudinal direction of the left vertical frame 23, and a second reinforcing member 722 fixed below the first reinforcing member 721, as shown in Figures 4, 5 (a) and (b).

The first reinforcing member 721 consists of a long member with an approximately U-shaped cross-section, and when positioned within the hollow portion of the left vertical frame main body 231, it has an indoor side visible wall 721a that follows the indoor side surface of the hollow portion, an inner periphery visible wall 721b that extends and bends toward the outside of the room from the inner periphery of the indoor side visible wall 721a, and an outer periphery visible wall 721c that extends and bends toward the outside of the room from the outer periphery of the indoor side visible wall 721a.
The first reinforcing member 721 is fixed, for example, by an inner peripheral projected wall 721b to the left vertical frame body 231 of the left vertical frame 23 using a fixing means such as a screw, and is arranged over almost the entire longitudinal length of the left vertical frame 23.

The indoor side visible wall 721a of the first reinforcing member 721 extends downward below the lower ends of the inner periphery side visible wall 721b and the outer periphery side visible wall 721c.
The extension portion 721d extended downward from the indoor side visible wall 721a reaches a position lower than the upper end of the inner lower rail 121c as shown in Figure 5 (b) when the inner screen 2 is placed on the frame body 1, and overlaps with the inner lower rail 121c in the projection direction, and a thermal expansion material f72 that expands due to heat is arranged in the lower portion (including the extension portion 721d) of the outdoor side surface of the indoor side visible wall 721a of the first reinforcing member 721 as shown in Figure 5 (c).

On the other hand, the second reinforcing member 722 is a short member with a roughly L-shaped cross section, and has a projecting wall 722a and a projecting wall 722b that extends from the lower portion of the projecting wall 722a at a bent angle.

The second reinforcing member 722 has its visible wall 722b facing the indoor-side visible wall 721a of the first reinforcing member 721 on the outdoor side, and its visible wall 722a is fixed to the outer peripheral visible wall 721c of the first reinforcing member 721 by a fixing means such as a rivet.

The second reinforcing member 722 has a cutout 722c formed on the side of the visible wall 722b below the visible wall 722a. When the inner screen 2 is placed on the frame body 1, the inner lower rail 121c is located within the cutout 722c, and the indoor side portions of the visible wall 722b and the cutout 722c overlap with the inner lower rail 121c when viewed in the visible direction.

In the event of a fire, the indoor side portion of the notch 722c of the projection wall 722a of the second reinforcing member 722 becomes a restricting portion 722d that restricts the movement of the inner screen 2 to the outside of the room, and the projection wall 722b becomes a restricting portion that restricts the movement of the inner screen 2 to the inside of the room, thereby preventing the joint frame 23 of the inner screen 2 from falling off to the inside or outside of the room.

In addition, if the rollers or the like melt during a fire, the upper part of the cutout 722c becomes the placement part 722e that is placed on the upper surface of the inner lower rail 121c, preventing the inner screen 2 from falling and the upper part of the inner screen 2 from coming off the inner upper rail.

On the other hand, the reinforcing member 73 arranged on the right vertical frame (joint frame) 34 of the outer screen 3 has a first reinforcing member 731 arranged along the longitudinal direction of the right vertical frame 34, and a second reinforcing member 732 fixed below the first reinforcing member 731.

As shown in Figures 4, 6(a) and 6(b), the first reinforcing member 731 is a long member with a generally U-shaped cross section, and has an exterior side visible wall 731a that is arranged inside the hollow portion of the right vertical frame main body 34a and runs along the exterior side surface of the hollow portion, an inner periphery side visible wall 731b that extends and bends the inner periphery side of the exterior side visible wall 731a toward the interior, and an outer periphery side visible wall 731c that extends and bends the outer periphery side of the exterior side visible wall 731a toward the interior.

The first reinforcing member 731 is fixed, for example, by an inner peripheral projected wall 731b to the right stile main body 341 of the right stile 34 using a fixing means such as a screw, and is arranged over almost the entire longitudinal length of the right stile 34.
In addition, in the right vertical frame (joint frame) 34 of this embodiment, as shown in Figure 6 (a), third reinforcing members 733 are provided at multiple locations in the longitudinal direction to reinforce the first reinforcing member 731 and fix it to the right vertical frame 34.

On the other hand, the second reinforcing member 732 is a short member and has a fixed wall 732a arranged parallel to the visible surface of the outer screen 3, a horizontal wall 732b formed by bending the lower end of the fixed wall 732a toward the inside of the room, and a vertical wall 732c formed by bending the inside end of the horizontal wall 732b downward and extending.

The second reinforcing member 732 has a fixed wall 732a fixed to the lower portion of the exterior visible wall 731a of the first reinforcing member 731 by a fixing means such as a rivet, and when fixed to the first reinforcing member 731, the vertical wall 732c protrudes downwardly beyond the lower end of the first reinforcing member 731.
When the outer screen 3 is placed on the frame body 1, the vertical wall 732c of the second reinforcing member 732 reaches below the upper end of the outer lower rail 121d and overlaps with the outer lower rail 121d in the projection direction.

As shown in Figures 4, 6(b) and 6(c), a thermal expansion material f731 that expands due to heat is disposed on the lower portion of the indoor side of the outdoor side visible wall 731a of the first reinforcing member 731, and a thermal expansion material f732 is disposed on the indoor side of the fixed wall 732a of the second reinforcing member 732.

In the event of a fire, the vertical wall 732c of the second reinforcing member 732 acts as a restricting part that prevents the outer screen 3 from falling to the outside of the room.
In addition, in the event of a fire and the rollers or the like melt, the horizontal wall 732b of the second reinforcing member 732 serves as a support portion that is placed on the upper surface of the outer lower rail 121d, preventing the outer screen 3 from falling and the upper part of the inner screen 2 from coming off the inner upper rail.

-Effects of the fittings of this embodiment-
As described above, in the building fixture of this embodiment, as shown in Figures 7(a) and 8(a), a heat-expansion material f12 attached to the upper surface of the water-stop piece 42 is arranged in the lower part of the joint of the inner and outer screens 2, 3, a heat-expansion material f72 is arranged in the reinforcing member 72 of the joint frame 23 of the inner screen 2, and heat-expansion materials f731, f732 are arranged in the reinforcing member 73 of the joint frame 34 of the outer screen 3.

Therefore, in the event of a fire, as shown in Figures 7(b) and 8(b), the thermal expansion material f12 arranged on the upper surface of the water-stopping piece 42 expands, thereby blocking the lower area of the seam.
Then, the thermal expansion material f72 arranged in the reinforcing member 72 of the joint frame 23 of the inner screen 2 and the thermal expansion materials f731, f732 arranged in the reinforcing member 73 of the joint frame 34 of the outer screen 3 expand, filling the hollow portion of the joint frame 23 of the inner screen 2 and the hollow portion of the joint frame 34 of the outer screen 3, thereby preventing smoke and flames from penetrating through the hollow portions of the joint frame 23 and the joint frame 34, and by integrating with the thermal expansion material f12 of the lower frame 12, the lower area of the joint portion can be closed without gaps in the front and rear directions.

The reinforcing member 72 arranged on the joint frame 23 of the inner screen 2 has a restricting portion 722d and a visible wall (restricting portion) 722b that face the inner lower rail 121c from the inside and outside of the room and restrict the movement of the joint part to the inside and outside of the room, so that it is possible to prevent the outer screen 3 connected by the crescent 6 from falling off to the inside or outside of the room, and also to maintain the closed state of the joint part by the thermal expansion material.

Furthermore, the reinforcing member 73 arranged on the joint frame 34 of the outer screen 3 has a restricting portion (vertical wall 732c) that faces the outer lower rail 121d from the inside of the room and restricts the movement of the joint portion to the outside of the room, thereby restricting the movement of the outer screen 3 to the outside of the room, and further preventing it from falling off the inner screen, which is connected by a crescent, to the outside of the room.

The reinforcing member 72 arranged on the joint frame 23 of the inner screen 2 and the reinforcing member 73 arranged on the joint frame 34 of the outer screen 3 each have a support portion 722e and a horizontal wall (support portion) 732b for maintaining the joint frames of the inner and outer screens 2 and 3 on the inner and outer lower rails 121c and 121d in the event that the plastic door wheels of the inner and outer screens 2 and 3 melt, thereby preventing the inner and outer screens 2 and 3 from falling too far and becoming detached from the frame body.

-Other embodiments-
In the above description of the building fixtures of this embodiment, the reinforcing members 72, 73 arranged within the joint frames 23, 34 of the inner and outer screens 2, 3 are formed of two members, a first reinforcing member and a second reinforcing member, but the reinforcing members arranged within the joint frames may also be formed as a single piece.
Furthermore, the first reinforcing member and the second reinforcing member that form the reinforcing member may be divided into any shape or structure, for example, by providing an extension portion 721d that extends to the lower end of the interior visible wall 721a of the first reinforcing member 721 of the inner sash 2 on the second reinforcing member 722.
The present invention can also be applied to an inner moving single sliding window and an outer moving single sliding window.

Needless to say, the above embodiments do not limit the invention described in the claims, but are treated as examples.

2: Inner screen 3: Outer screen 23: Left vertical frame (shoai frame)
72: Reinforcing member 121c: Inner lower rail 721: First reinforcing member 721a: Indoor side visible wall 721b: Inner peripheral side visible wall 721c: Outer peripheral side visible wall 721d: Extension portion 722: Second reinforcing member 722a: Visible wall 722b: Visible wall (restriction portion)
722c: Notch 722d: Restriction portion 722e: Placement portion 731: First reinforcing member 731a: Exterior side visible wall 731b: Inner peripheral side visible wall 731c: Outer peripheral side visible wall 732: Second reinforcing member 732a: Fixed wall 732b: Horizontal wall (placement portion)
732c: Vertical wall (regulating portion)
f12: Thermal expansion material f72: Thermal expansion material f731: Thermal expansion material f732: Thermal expansion material

Claims (1)

It has a frame and inner and outer screens.
The inner door frame has a hollow portion and a reinforcing member is disposed within the hollow portion.
The reinforcing member has an interior side wall that is extended to a position where it overlaps with the lower rail in the projection direction, and a restricting portion that is extended to a position where it overlaps with the lower rail in the projection direction and restricts the movement of the inner sash door frame from the inside to the outside of the room.
A space is formed between the interior wall and the restricting portion within the hollow portion,
The interior side facing wall of the reinforcing member has a thermal expansion material disposed on the exterior side.
A fixture that fills the space when the thermal expansion material expands during a fire .

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