JP2021156090A - Fitting - Google Patents

Abstract

To provide a fitting that can improve fire protection performance.SOLUTION: A fitting 10 has a sliding door body 14 and a door end side vertical frame 12c provided with a vertical groove portion 48. In the vertical groove portion 48, a first heat-expandable member 50 is provided between a first extension surface 14fx of an outdoor side surface 14f and a first groove side surface 48b. A second heat-expandable member 52 is provided between a second extension surface 14gx of an indoor side surface 14g and a second groove side surface 48c. The first heat-expandable member 50 and the second heat-expandable member 52 are provided at locations other than a gap between the first extension surface 14fx and the second extension surface 14gx. A surface 50a of the first heat-expandable member 50 is oriented toward a first gap 53 formed between the first groove side surface 48b and the outdoor side surface 14f when the door body 14 is closed. A surface 52a of the second heat-expandable member 52 is oriented toward a second gap 54 formed between the second groove side surface 48c and the indoor side surface 14g when the door body 14 is closed.SELECTED DRAWING: Figure 3

Description

The present invention relates to a fitting having a sliding door body and a door end side vertical frame provided with a vertical groove portion for accommodating the door end portion of the door body when the door body is closed.

Recently, there is a demand for improved fire protection performance for sliding door type fittings. Sliding door fittings have a sliding door body. In order to improve the fire protection performance of the sliding door type fitting, Patent Document 1 proposes to provide a heat-expandable member on the entire surface of the vertical groove portion accommodating the door tip portion of the door body when the door body is closed. .. In this fitting, it is possible to prevent a gap between the door tip of the door body and the vertical frame by the action of the heat-expandable member in the event of a fire.

Japanese Unexamined Patent Publication No. 2015-169024

By the way, in the fitting described in Patent Document 1, since the heat-expandable member is provided on the entire surface of the vertical groove portion, the prospective surface on the door end side of the door body is pushed out by the expansion of the heat-expandable member in the event of a fire, and the door is shielded. There is a concern that the flame will decrease.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a fitting capable of improving fire protection performance.

In order to solve the above-mentioned problems and achieve the object, the fitting according to one aspect of the present invention includes a sliding door body and a vertical groove portion for accommodating the door tip portion of the door body when the door body is closed. A fitting having a door end side vertical frame, wherein the vertical groove portion is formed on the vertical frame prospective surface facing the door end side prospective surface of the door body and the outdoor side of the vertical frame prospective surface. A first groove side surface projecting in the sliding direction of the door body and a second groove side surface formed on the indoor side of the vertical frame prospective surface and projecting in the sliding direction of the door body are provided in the vertical groove portion. A first thermal expansion property is provided between the first extension surface of the outdoor side surface of the door body and the second extension surface of the indoor side surface, and between the first extension surface and the first groove side surface. A member is provided, and a second thermal expansion is provided at a position other than between the first extension surface and the second extension surface in the vertical groove portion, and between the second extension surface and the second groove side surface. A sex member is provided, and one surface of the first heat-expandable member directs a first gap formed between the side surface of the first groove and the outdoor surface of the door when the door body is closed, and the first surface thereof is formed. One surface of the bithermally expandable member is characterized in that it directs a second gap formed between the side surface of the second groove and the side surface of the room when the door body is closed.

In the fitting according to the present invention, the first heat-expandable member is provided between the first extension surface of the outdoor side surface of the door body and the side surface of the first groove, and the second heat-expandable member is the indoor side surface of the door body. It is provided between the second extension surface and the side surface of the second groove. Further, the first heat-expandable member and the second heat-expandable member are provided at locations other than between the first extension surface and the second extension surface. Then, one surface of the first heat-expandable member points to the first gap formed between the side surface of the first groove and the outdoor side surface when the door body is closed, and one side of the second heat-expandable member is It points to the second gap formed between the side surface of the second groove and the side surface of the room when the door body is closed. Therefore, almost all of the expanded first heat-expandable member and the second heat-expandable member swell from the first gap and the second gap, and the door body is not pushed out. In addition, it has a flame-shielding effect on both sides of the door body in the prospective direction, and can further improve the fire protection performance.

It is a front view which looked at the fitting which concerns on one Embodiment of this invention from the outdoor side. FIG. 1 is a vertical cross-sectional view taken along the line II to II in FIG. It is a cross-sectional view of the door end side vertical frame of a frame body and the door end side vertical end portion of a door body. FIG. 3 is a cross-sectional view taken along the line IV to IV in FIG. It is a cross-sectional view of the door end side vertical frame of a frame body and the door end side vertical end portion of a door body in an expanded state of a heat-expandable member. It is a schematic view which shows the fitting in the expanded state of a heat-expandable member, (a) is a schematic vertical cross-sectional surface in a state where a door body is warped to the outdoor side, and (b) is a schematic vertical cross-sectional surface in a state where a door body is warped to the indoor side. It is a schematic cross-sectional vertical view of a state, and FIG. 3C is a schematic front view of a state in which the vertical end portion of the door body on the door end side is along the door tail side. It is a cross-sectional view of the door end side vertical frame of a frame body and the door end side vertical end portion of a door body in the fitting which concerns on a modification. It is a cross-sectional view of the door end side vertical frame of the frame body of the fitting and the door end side vertical end portion of the door body which concerns on the deformation example in the expanded state of a heat-expandable member.

Hereinafter, an embodiment of the fitting according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

FIG. 1 is a front view of the fitting 10 according to the embodiment of the present invention as viewed from the outdoor side. As shown in FIG. 1, the fitting 10 is a single sliding door type and has a frame body 12 and a door body 14. The fitting 10 opens and closes a rectangular opening provided in the wall by sliding the door body 14 in the left-right direction of FIG. The area shown by the virtual line 16 on the left half in FIG. 1 may be a part of a wall or a panel for fitting and killing. Further, the area indicated by the virtual line 16 may be a door body paired with the door body 14. That is, the fitting 10 may be a sliding door. In this case, the sliding door may be composed of three or more.

The frame body 12 has an upper frame 12a, a lower frame 12b, a door end side vertical frame 12c, and a door tail side vertical frame 12d. The substantially right half of the upper frame 12a, the lower frame 12b, the door end side vertical frame 12c, and the door tail side vertical frame 12d form a rectangular frame and surround the rectangular opening provided in the wall. The left half of the upper frame 12a protrudes to the left from the position of the door tail side vertical frame 12d, and the protruding length thereof is substantially equal to the width of the door body 14. The lower frame 12b of the present embodiment connects between the door end side vertical frame 12c and the door tail side vertical frame 12d, and does not project to the left side of the door tail side vertical frame 12d, but the upper frame. Like 12a, it may protrude to the left. The door body 14 is provided with a handle 18 in the vicinity of the vertical end portion 14c on the door end side. The handle 18 is provided on the indoor side and the outdoor side of the door body 14.

In the present application, the prospective direction refers to the indoor / outdoor direction of the fitting 10 (indicated by an arrow Z in the drawing; in FIG. 1, the vertical direction of the paper surface). The prospective surface is a surface that extends along the prospective direction. The finding direction is a direction orthogonal to the expected direction, and in the case of a vertical frame 12c on the door end side that is long in the vertical direction, it means a left-right direction (direction indicated by an arrow X in the figure) orthogonal to the longitudinal direction thereof. In the case of an upper frame 12a or the like that is long in the left-right direction, it means a vertical direction (direction indicated by an arrow Y in the figure) orthogonal to the longitudinal direction thereof. The finding surface is a surface along the finding direction.

FIG. 2 is a vertical cross-sectional view taken along the line II to II in FIG. FIG. 3 is a cross-sectional view of the door end side vertical frame 12c of the frame body 12 and the door end side vertical end portion 14c of the door body 14. FIG. 4 is a cross-sectional view taken along the line IV to IV in FIG.

First, the door body 14 will be described with reference to FIGS. 2 to 4.
The upper end portion 14a of the door body 14 is provided with a U-shaped aggregate 14aa that opens downward and a U-shaped reinforcing member 14ab provided inside the aggregate 14aa. An aggregate 14ba and a guide material 14bb are provided at the lower end portion 14b of the door body 14. The guide material 14bb is formed with a U-shaped portion that opens downward to form a guide groove 14bc. A gap is secured between the aggregate 14ba and the guide material 14bb.

At the door end side vertical end 14c of the door body 14, a U-shaped aggregate 14ca opened in the door tail direction, a frame 14cc covering the outdoor side surface of the aggregate 14ca, and a frame 14cc covering the indoor side surface are provided. An edge material 14cd that forms the end on the door end side is provided. The frame 14cc and the frame 14cc are, for example, resin materials. The edge material 14cd is an extruded material of a metal material such as aluminum.

A plurality of projecting pieces 14ce projecting in the door tail direction are provided on the edge material 14cd, and a gap 14cf is secured between the edge material 14cd and the aggregate 14ca by the projecting pieces 14ce. Inside the gap 14cf, on the surface of the edge material 14cd, a heat-expandable member 14cg is provided near the end portion on the outdoor side, and a heat-expandable member 14ch is provided near the end portion on the indoor side. The heat-expandable members 14cg and 14ch are arranged over the entire length of the vertical end portion 14c on the door end side along the long direction. When the fitting 10 becomes a high temperature state, the heat-expandable members 14cg and 14ch expand and fill the gap 14cf. The heat-expandable members 14cg and 14ch have the same structure as the heat-expandable members 50, 52, 14df and 14dg described later.

A U-shaped aggregate 14da opened in the door tip direction and a U-shaped reinforcing member 14db provided inside the aggregate 14da are provided at the door tail side vertical end portion 14d of the door body 14. .. Further, the vertical end portion 14d on the door tail side is provided with a frame material 14 dc that covers the door tail direction and slightly protrudes toward the indoor side. The aggregate 14da, the reinforcing material 14db and the frame material 14dc are fixed with screws. A smoke return 14dd protruding toward the door end is formed at the indoor end of the frame member 14dc. A reinforcing material 14de is provided on the smoke return 14dd. A heat-expandable member 14df is arranged on the surface of the frame member 14dc facing the smoke return 14dd so as to face the indoor direction. A heat-expandable member 14 dt is arranged between the facing surface and the smoke return 14 dd so as to face the door end direction. The door tail side vertical end portion 14d and the door tail side vertical frame 12d are in a combined position.

The door body 14 is provided with a heat insulating material 14e in a region surrounded by aggregates on all four sides. The aggregate is an extruded material of a metal material such as aluminum. Surface materials are provided on the outdoor side surface 14f and the indoor side surface 14g of the door body 14, and have a flush structure. The door body 14 may have a structure other than the flash structure.

Next, the frame body 12 will be described with reference to FIGS. 2 to 4.
The upper frame 12a of the frame body 12 is composed of a first frame member 12aa, a second frame member 12ab, a third frame member 12ac, a fourth frame member 12ad, and a fifth frame member 12ae. A space portion 12ag that opens downward is formed in the upper frame 12a. The upper end portion 14a of the door body 14 is inserted in the lower portion of the space portion 12ag.

A rail 20 having a substantially L-shaped cross section is provided in the space portion 12ag. The rail 20 extends over substantially the entire length of the upper frame 12a in the long direction. The guide protrusion at the tip of the rail 20 guides the rotatable suspension roller 22. The upper end portion 14a of the door body 14 is connected to the suspension roller 22 by a connecting member 24. A plurality of suspension rollers 22 and connecting members 24 are provided along the elongated direction of the upper end portion 14a. At the lower end of the space portion 12ag, the tight material 28 projects from the side surface of the room toward the upper end portion 14a. The tight lumber 28 and the tight lumbers 38, 56, 58 described later are airtight lumbers. The brush 30 projects from the outdoor surface at the lower end of the space portion 12ag toward the upper end portion 14a.

The lower frame 12b of the frame body 12 is composed of a first frame member 12ba and a second frame member 12bb. The first frame member 12ba constitutes the lower end of the lower frame 12b and is located below the door body 14. The second frame member 12bb is located on the indoor side of the lower end portion 14b of the door body 14. A shoe slip 32 is fitted in the upper part of the second frame member 12bb. A rotatable guide roller 34 is provided in the lower portion of the door body 14 in the first frame member 12ba. The guide roller 34 fits into the guide groove 14bc and guides the lower end portion 14b. The door body 14 can be slidable along the X direction (vertical direction on the paper surface in FIG. 2) by the suspension roller 22 and the guide roller 34. One support column on which the guide roller 34 is provided is provided in the vicinity of the door end side vertical end portion 14c when the door body 14 is fully opened (see FIG. 1). From the outdoor surface of the second frame member 12bb, the tight lumber 38 projects toward the lower end portion 14b.

The door end side vertical frame 12c is composed of a first frame material 12ca, a second frame material 12cc, and a third frame material 12cc. The first frame material 12ca and the second frame material 12cc are extruded mold materials of a metal material such as aluminum. The third frame material 12cc is, for example, a resin material. The first frame member 12ca constitutes the door end side end of the door end side vertical frame 12c, and is located on the door end side of the door body 14. The second frame member 12cc is located on the indoor side of the door end side vertical end portion 14c of the door body 14. The third frame member 12cc is sandwiched between the first frame member 12ca and the second frame member 12cc.

The first frame member 12ca is composed of an outdoor side plate 46a, an indoor side plate 46b, a partition plate 46c in the middle, a door end side plate 46d, and a door tail side plate 46e. The first frame member 12ca is divided into two sections by a partition plate 46c, and an appropriate strength is secured. The outdoor plate 46a projects slightly toward the door butt side from the connection portion with the door butt side plate 46e. This portion is called a protruding portion 46aa. The indoor side plate 46b protrudes slightly toward the door end side from the connection portion with the door end side plate 46d.

The door end side vertical frame 12c includes a vertical groove portion 48 that accommodates the door end portion (specifically, a part or all of the door end side vertical end portion 14c) of the door body 14 when the door body 14 is closed. The vertical groove portion 48 has a vertical frame prospective surface (first mounting surface, second mounting surface) 48a facing the door end side prospective surface 14h of the door body 14 and a sliding direction of the door body 14 from the vertical frame prospective surface 48a. It includes a protruding first groove side surface 48b and a second groove side surface 48c.

The first groove side surface 48b is an indoor surface of the protruding portion 46aa, and is formed on the outdoor side of the vertical frame prospective surface 48a. The second groove side surface 48c is an outdoor surface of each of the second frame member 12cc and the third frame member 12cc, and is formed on the indoor side of the vertical frame prospective surface 48a. The first groove side surface 48b and the second groove side surface 48c have the same protrusion width from the vertical frame expected surface 48a.

The flutes 48 are provided with a first heat-expandable member 50 and a second heat-expandable member 52. The first heat-expandable member 50 and the second heat-expandable member 52 have a thin plate shape. The first heat-expandable member 50 is provided on the vertical frame prospective surface 48a in substantially the entire width in the prospective direction between the first extension surface 14fx of the outdoor side surface 14f of the door body 14 and the first groove side surface 48b. The surface (one surface) 50a opposite to the surface attached to the vertical frame prospective surface 48a of the first heat-expandable member 50 is formed between the first groove side surface 48b and the outdoor surface 14f when the door body 14 is closed. The first gap 53 to be formed is directed.

The second heat-expandable member 52 is provided on the vertical frame prospective surface 48a in substantially the entire width in the prospective direction between the second extension surface 14gx of the indoor side surface 14g of the door body 14 and the second groove side surface 48c. The surface (one surface) 52a opposite to the surface attached to the vertical frame prospective surface 48a of the second heat-expandable member 52 is formed between the second groove side surface 48c and the outdoor surface 14g when the door body 14 is closed. Aims at the second gap 54 to be formed. The first heat-expandable member 50 and the second heat-expandable member 52 are provided at locations other than between the first extension surface 14fx and the second extension surface 14 gx.

The first heat-expandable member 50 and the second heat-expandable member 52 are nonflammable or flame-retardant refractory members that expand due to heat. As the heat-expandable members 50 and 52 of this type, for example, a graphite-containing foaming material having heat-expandability can be applied. In the present embodiment, the long heat-expandable members 50 and 52 having a cross-sectional shape thin with respect to the width direction are arranged on the vertical frame prospective surface 48a over the entire length in the long direction. There is. Although not clearly shown in the figure, the respective heat-expandable members 50 and 52 are adhered by double-sided tape or an adhesive, and do not inadvertently fall off from the vertical frame prospective surface 48a.

A first tight material 56 projecting in the direction of the outdoor side surface 14f of the closed door body 14 is provided on the first groove side surface 48b of the vertical groove portion 48. The first tight material 56 closes the first gap 53 and covers the first heat-expandable member 50. A C-shaped storage portion 46f is formed at the tip of the first groove side surface 48b. The base of the first tight material 56 is stored and fixed in the storage portion 46f. The storage portion 46f slightly protrudes from the tip of the protruding portion 46aa in the finding direction. About half of the outdoor side of the first heat-expandable member 50 faces the storage portion 46f.

A second tight material 58 projecting in the direction of the indoor side surface 14g of the closed door body 14 is provided on the second groove side surface 48c of the vertical groove portion 48. The second tight material 58 closes the second gap 54 and covers the second heat-expandable member 52. The second tight material 58 is composed of two materials having different lengths (indicated by reference numerals 58a and 58b in FIG. 3). A C-shaped storage portion 46g is formed at the tip of the second groove side surface 48c. The base of the second tight material 58 is stored and fixed in the storage portion 46 g. The storage portion 46g is formed along the side surface 48c of the second groove.

Since the first heat-expandable member 50 is covered with the first tight material 56 and the second heat-expandable member 52 is covered with the second tight material 58, it is suitable for the design and is prevented from being inadvertently touched. NS. Further, even if the first tight material 56 and the second tight material 58 are not present, the first heat-expandable member 50 and the second heat-expandable member 52 are formed on the first extension surface 14fx of the outdoor side surface 14f and the indoor side surface 14g. It is not provided between the second extension surface 14gx and is appropriately thin and inconspicuous. Since the first heat-expandable member 50 and the second heat-expandable member 52 are provided at both corners of the vertical groove portion 48, even if the first tight material 56 and the second tight material 58 are not provided, they are not prepared. Hard to touch.

The door tail side vertical frame 12d of the frame body 12 includes a frame material 12da. A smoke return 12db protruding in the door tail direction is formed at the outdoor end of the frame member 12da. The pair of smoke return 12db and the smoke return 14dd are arranged to face each other.

Next, the operation of the fitting 10 configured in this way will be described.
FIG. 5 is a cross-sectional view of the door end side vertical frame 12c of the frame body 12 and the door end side vertical end portion 14c of the door body 14 in a state where the heat-expandable members 50 and 52 are inflated.

When the fitting 10 is exposed to a high temperature, the first tight material 56 and the second tight material 58 disappear or melt, and the heat-expandable members 50 and 52 expand. In FIG. 5, the expanded state of the first heat-expandable member 50 is indicated by reference numeral 50x, and the expanded state of the second heat-expandable member is indicated by reference numeral 52. The thermally expandable members 50 and 52 are provided on the vertical frame prospective surface 48a, and since the surfaces 50a and 52a direct the gaps 53 and 54, the expansion directions are the outdoor surface 14f and the outdoor side surface 14f and as shown by the arrow A. It is almost parallel to the indoor side surface 14g and faces the door butt side.

Further, since the vertical groove portion 48 is provided with the first groove side surface 48b, the first thermally expandable member 50 does not bulge to the outdoor side. Since the vertical groove portion 48 is provided with the second groove side surface 48c, the second thermally expandable member 52 does not bulge toward the indoor side. Therefore, almost all of the expanded heat-expandable members 50x and 52x spread along the outdoor side surface 14f and the indoor side surface 14g and sufficiently swell in the direction of arrow A. Be shielded. As a result, for example, it is possible to prevent a situation in which a flame on the outdoor side reaches the indoor side through the vertical groove portion 48.

Further, the first heat-expandable member 50 is a portion other than between the first extension surface 14fx and the second extension surface 14gx on the vertical frame prospective surface 48a, and is the first extension surface 14fx of the outdoor surface 14f of the door body 14. Since it is provided between the first groove side surface 48b, the expanded first heat-expandable member 50x hardly comes into contact with the door end side prospective surface 14h. Similarly, the second heat-expandable member 52 is a second extension surface 14gx of the indoor side surface 14g of the door body 14 except between the first extension surface 14fx and the second extension surface 14gx on the vertical frame prospective surface 48a. Since it is provided between the second groove side surface 48c and the second groove side surface 48c, the expanded second heat-expandable member 52x hardly comes into contact with the door end side prospective surface 14h. Therefore, the expanded heat-expandable members 50x and 52x do not push out the door body 14, and also have a flame-shielding effect on both sides of the door body 14 in the prospective direction, so that the fire protection performance can be further improved. Further, since the door body 14 is not pushed out in the direction of the door end, the combination of the smoke return 12db and the smoke return 14dd (see FIG. 4) is not shallow, and the flame insulation property of the combination portion is lowered. Never.

Furthermore, in the first heat-expandable member 50, approximately half of the outdoor side faces the storage portion 46f, and the storage portion 46f acts like a guide. That is, the expanded first heat-expandable member 50x is squeezed by the storage portion 46f and bulges from the gap between the storage portion 46f and the outdoor side surface 14f, and the direction of swelling is slightly guided to the indoor side. It can surely come into contact with the outdoor surface 14f. Therefore, the fire protection performance can be further improved.

6A and 6B are views showing a fitting 10 in a state where the heat-expandable members 50 and 52 are inflated, FIG. 6A is a schematic vertical sectional view in a state where the door body 14 is warped outward, and FIG. 6B is a schematic vertical sectional view. It is a schematic vertical cross-sectional view of a state where the door body 14 is warped toward the interior side, and (c) is a schematic front view of the state where the door end side vertical end portion 14c of the door body 14 is along the door tail side.

As shown in FIG. 6A, it is conceivable that the door body 14 in a high temperature state warps to the outdoor side. At this time, a gap may be formed between the expanded second heat-expandable member 52x and the indoor side surface 14g of the door body 14 on the indoor side. However, on the outdoor side, since the outdoor side surface 14f pushes in the expanded first heat-expandable member 50x, no gap is generated and the fire protection performance is maintained.

As shown in FIG. 6B, it is conceivable that the door body 14 in a high temperature state warps toward the indoor side. At this time, a gap may be formed between the expanded first heat-expandable member 50x and the outdoor surface 14f of the door body 14 on the outdoor side. However, on the indoor side, since the second heat-expandable member 52x in which the indoor side surface 14 g is expanded is pushed in, no gap is generated and the fire protection performance is maintained.

As shown in FIG. 6C, it is conceivable that the vertical end portion 14c on the door end side of the door body 14 in a high temperature state warps toward the door end side. At this time, even if a gap is formed between the door end side vertical end portion 14c and the door end side vertical frame 12c, the expanded heat-expandable members 50x and 52x sufficiently bulge in the direction toward the door end side. Therefore, this gap can be covered and the fire protection performance is maintained. As described above, by providing both the first heat-expandable member 50 and the second heat-expandable member 52, the door body 14 has a flame-shielding action from the indoor side and the outdoor side, and the fire protection performance can be further improved. ..

Next, the fitting 10A according to the modified example will be described. Regarding the fitting 10A, the same elements as those of the fitting 10 are designated by the same reference numerals, and detailed description thereof will be omitted. FIG. 7 is a cross-sectional view of the door end side vertical frame 12c of the frame body 12 and the door end side vertical end portion 14c of the door body 14 in the fitting 10A.

As shown in FIG. 7, a first inclined plate 60 is provided between the first extension surface 14fx of the outdoor side surface 14f and the first groove side surface 48b on the vertical frame expected surface 48a of the door end side vertical frame 12c. There is. The first inclined plate 60 is arranged over the entire length of the vertical frame 12c on the door end side in the long direction. A first heat-expandable member 50 is attached to the first mounting surface 60a of the first inclined plate 60. In the first heat-expandable member 50, a surface facing the first mounting surface 60a and a surface opposite to the surface facing the first mounting surface 60a direct the gap 53, and further obliquely direct the outdoor surface 14f of the door body 14. That is, the normal line B1 of the first mounting surface 60a points obliquely to the outdoor surface 14f.

A second inclined plate 62 is provided between the second extension surface 14gx of the indoor side surface 14g and the second groove side surface 48c on the vertical frame prospective surface 48a of the door end side vertical frame 12c. The second inclined plate 62 is arranged over the entire length of the vertical frame 12c on the door end side in the long direction. A second heat-expandable member 52 is attached to the second mounting surface 62a of the second inclined plate 62. In the second heat-expandable member 52, the surface facing the second mounting surface 62a and the surface opposite to the surface facing the second mounting surface 62a direct the gap 54, and further obliquely direct the indoor side surface 14g of the door body 14. That is, the normal line B2 of the second mounting surface 60a is obliquely directed to the indoor side surface 14g.

The angle between the back surfaces of the inclined plates 60 and 62 and the expected vertical frame surface 48a is 45 degrees or less so that the normals B1 and B2 are directed at appropriate angles with respect to the surfaces 14f and 14g. Therefore, the mounting surfaces 60a and 62a are set at an angle closer to the vertical frame prospective surface 48a in the Z direction than the vertical frame finding surfaces 48b and 48c in the X direction on the plane of FIG. The inclined plates 60 and 62 are metal plates such as aluminum. Although the inclined plates 60 and 62 are fixed to the door end side vertical frame 12c, they may be configured as a part of the door end side vertical frame 12c.

FIG. 8 is a cross-sectional view of the door end side vertical frame 12c of the frame body 12 of the fitting 10A and the door end side vertical end portion 14c of the door body 14 in a state where the heat expandable members 50 and 52 are inflated. As shown in FIG. 8, since the normal line B1 of the first mounting surface 60a is obliquely directed to the outdoor surface 14f of the door body 14, the expanded first heat-expandable member 50x is along the normal line B1. It expands and reliably abuts on the outdoor surface 14f of the door body 14. Since the normal line B2 of the second mounting surface 62a is obliquely directed to the indoor side surface 14g of the door body 14, the expanded second heat-expandable member 52x expands along the normal line B2, and the door body 14 has an expanded second mounting surface 62a. It surely contacts the indoor side surface 14 g. As a result, the expanded heat-expandable members 50x and 52x are easily brought into close contact with the door body 14, and the fire protection performance is further improved.

The heat-expandable members 14cg, 14ch, 50, 52 may be of a coating type. The coating type heat-expandable member can be applied to a predetermined place from a nozzle or the like in a state of having fluidity, and then a material that cures can be applied. The heat-expandable member is cured from a fluid state over time or by a chemical treatment such as mixing a curing agent to accelerate the curing reaction.

In such a coating type heat-expandable member, a fluid heat-expandable member is applied to the fitting and hardened. Therefore, when a protrusion such as a screw or a protrusion is provided on the surface of the fitting. Even for the part that is configured like a corner. The heat-expandable member can be provided without creating a gap. Therefore, there is no possibility that the heat-expandable member will come off and fall off even after a long time, and the fire resistance can be improved.

The fitting according to one aspect of the present invention is a fitting having a sliding door body and a door tip side vertical frame provided with a vertical groove portion for accommodating the door tip portion of the door body when the door body is closed. The vertical groove portion is formed on the outdoor side of the vertical frame prospective surface facing the door end side prospective surface of the door body and the outdoor side of the vertical frame prospective surface and protrudes in the sliding direction of the door body. A second groove side surface formed on the indoor side of the vertical frame prospective surface and projecting in the sliding direction of the door body, and a first extension surface and an indoor side surface of the outdoor side surface of the door body in the vertical groove portion. A first heat-expandable member is provided between the first extension surface and the side surface of the first groove except between the second extension surface and the first extension surface of the vertical groove portion. A second heat-expandable member is provided between the second extension surface and the second groove side surface except between the second extension surface and the second extension surface, and the first heat-expandable member is provided. One surface directs a first gap formed between the first groove side surface and the outdoor side surface when the door body is closed, and one surface of the second heat-expandable member is closed by the door body. It is characterized in that it directs a second gap formed between the side surface of the second groove and the side surface of the room at the time.
According to such fittings, the expanded heat-expandable member does not push out the door body. In addition, it has a flame-shielding effect on both sides of the door body in the prospective direction, and can further improve the fire protection performance.

The fitting according to one aspect of the present invention includes a first tight material that protrudes in the direction of the outdoor side surface of the door body that is closed from the side surface of the first groove and closes the first gap, and is closed from the side surface of the second groove. A second tight material that protrudes in the direction of the outdoor side surface of the door body and closes the second gap is provided.
Since such a tight material covers the heat-expandable member, it is suitable in terms of design and prevents the heat-expandable member from being inadvertently touched.

In the fitting according to one aspect of the present invention, one surface of the first heat-expandable member obliquely directs the outdoor side surface of the door body, and one surface of the second heat-expandable member is the indoor side surface of the door body. It is characterized by pointing diagonally.
Since the expandable member is obliquely oriented on the surface of the door body, the expanded thermally expandable member also expands in this direction and surely contacts the surface of the door body. As a result, the expanded heat-expandable member easily adheres to the door body, and the fire protection performance is further improved.

The present invention is not limited to the above-described embodiment, and it goes without saying that the present invention can be freely modified without departing from the gist of the present invention.

10,10A Joinery, 12 frame body, 12a upper frame, 12b lower frame, 12c door tip side vertical frame, 12d door tail side vertical frame, 14 door body, 14a upper end, 14b lower end, 14c door tip side vertical end , 14d Door butt side vertical end, 14f outdoor outer surface, 14fx first extension surface, 14gx second extension surface, 14g indoor side surface, 14h door tip side expected surface, 46f, 46g storage part, 48 vertical groove, 48a vertical frame expected Surface, 48b 1st groove side surface, 48c 2nd groove side surface, 50 1st thermal expansion member, 50a, 52a surface (one surface), 52 2nd thermal expansion member, 50x, 52x expanded thermal expansion member, 53rd 1 gap, 54 second gap, 56 first tight material, 58 second tight material, 60 first inclined plate, 60a first mounting surface, 62 second inclined plate, 62a second mounting surface

Claims (3)

Sliding door body and
A vertical frame on the door end side having a vertical groove for accommodating the door end portion of the door body when the door body is closed, and a vertical frame on the door end side.
It is a fitting that has
The flutes are
The vertical frame prospective surface facing the door end side prospective surface of the door body and
The side surface of the first groove formed on the outdoor side of the prospective surface of the vertical frame and projecting in the sliding direction of the door body, and
A second groove side surface formed on the indoor side of the vertical frame prospective surface and projecting in the sliding direction of the door body, and
With
At a location other than between the first extension surface of the outdoor side surface of the door body and the second extension surface of the indoor side surface in the vertical groove portion, and between the first extension surface and the first groove side surface, there is a first. 1 Thermal expansion member is provided,
A second heat-expandable member is provided in the vertical groove portion except between the first extension surface and the second extension surface, and between the second extension surface and the side surface of the second groove. ,
One surface of the first heat-expandable member directs a first gap formed between the first groove side surface and the indoor side surface when the door body is closed.
One surface of the second heat-expandable member is a fitting that directs a second gap formed between the second groove side surface and the interior side surface when the door body is closed. A first tight material that projects from the side surface of the first groove toward the outdoor side surface of the door body and closes the first gap.
A second tight material that protrudes from the side surface of the second groove in the direction of the outdoor side surface of the door body and closes the second gap.
The fitting according to claim 1, wherein the fitting is provided with. One surface of the first heat-expandable member obliquely directs the outdoor side surface of the door body.
The fitting according to claim 1 or 2, wherein one surface of the second heat-expandable member obliquely directs the indoor side surface of the door body.

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