JP2014211038A - Sliding door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inhibit flame or smoke from passing into a gap between a sliding door and a frame body.SOLUTION: In a sliding door device including a frame body 10 having a passage opening A in an inside thereof and a sliding door 20 opening and closing the passage opening A by laterally moving in the frame body 10, a bypass s1 is formed in a gap between the frame body 10 and the sliding door 20 when the passage opening A is closed so that fluid intruding into the gap is returned to an intrusion direction after the fluid is directed to a direction opposite to the intrusion direction.

Description

  The present invention relates to a sliding door device that opens and closes an opening by moving a door body in a lateral width direction.

  Conventionally, in this type of invention, for example, as described in Patent Document 1, a frame (10) surrounding a passage opening (s) and an upper frame (13) of the frame A guide rail (70) mounted across the width direction, a suspension wheel (21) rolling on the guide rail, a sliding door (opening / closing body 20) suspended by the suspension vehicle, Some have a linear motor section (30) for moving the suspension vehicle.

By the way, in the sliding door apparatus like the said prior art, the clearance gap which connects the indoor side and outdoor side of a sliding door is formed between a frame (10) and a sliding door (opening-closing body 20). More specifically, for example, the upper frame portion (13) of the frame (10) is formed in a hollow shape, and between the upper frame portion (13) and the upper end side portion of the sliding door (opening / closing body 20). As shown in FIG. 2 of Patent Document 1, a gap is formed. For this reason, in the unlikely event of a fire, there is a risk that flames, smoke, etc. may pass through the space and the upper frame portion (13) into and out of the sliding door.
In addition, it is conceivable to close the gap with a packing or the like, but in such a case, there is a risk that the sliding door opening / closing operability may be impaired due to friction of the packing or the like, or the packing may be burned out by a fire. is there.

JP-A-2005-90040

  This invention is made | formed in view of the said conventional situation, The process made into the subject is providing the sliding door apparatus which can prevent a flame, smoke, etc. passing through the clearance gap between a sliding door and a frame. It is in.

  One means for solving the above-mentioned problems is a sliding door device comprising a frame having a passage opening inside and a sliding door that opens and closes the passage opening by moving in the horizontal direction in the frame. A detour that returns the fluid that has entered the gap into the gap between the sliding door and the frame when the passage opening is closed, and then returns the fluid to the penetration direction after turning in the opposite direction to the penetration direction. It is characterized by being formed.

  Since the present invention is configured as described above, it has a structure in which the sliding door is less likely to deteriorate in operability and burnout, and flame or smoke passes through the gap between the sliding door and the frame. Can be blocked

It is the front view which looked at the sliding door device concerning the present invention from the room inner side. It is sectional drawing which follows the (II)-(II) line | wire in FIG. It is sectional drawing which follows the (III)-(III) line | wire in FIG. It is sectional drawing which follows the (IV)-(IV) line | wire in FIG. It is a longitudinal cross-sectional view of the part which has a drive device about the sliding door apparatus. It is sectional drawing which follows the (VI)-(VI) line | wire in FIG. It is sectional drawing which follows the (VII)-(VII) line | wire in FIG. It is a structural diagram which cuts out the principal part of a sliding door and shows an inside. It is the figure which looked at the sliding door from the upper part. It is the figure which looked at the sliding door from the downward direction. It is a principal part cross-sectional view of a sliding door. An example of the panel on the door pocket side is shown, (a) is a front view and (b) is a side view. It is a longitudinal cross-sectional view which shows an example of the detour on the upper end side. It is a cross-sectional view showing an example of a detour on the door end side. It is a principal part expanded longitudinal sectional view which shows the lower end side of a sliding door. It is a cross-sectional view showing another example of the sliding door device according to the present invention. The other example of an upper end side flame-proof auxiliary member is shown, (a) is a top view, (b) is a front view, (c) is a left view.

A first feature of the present embodiment is a sliding door device including a frame body having a passage opening inside and a sliding door that opens and closes the passage opening by moving in the lateral width direction of the frame body. A detour that returns the fluid that has entered the gap into the gap between the sliding door and the frame when the passage opening is closed, and then returns the fluid to the penetration direction after turning in the opposite direction to the penetration direction. It was made to form (refer FIG. 2, FIG. 4 and FIGS. 13-14).
According to this configuration, when a flame, smoke, or the like is about to enter the gap between the sliding door and the frame when the passage opening is closed, the flame, smoke, etc. are Passes around the gap.
Therefore, it is possible to prevent flames and smoke from passing through the gap, and it is also possible to cause the sliding door device to function as a fire prevention facility (fire door) that does not allow the flame at the time of fire to pass inside or outside the building. .

As a second feature, the gap is a gap formed so as to communicate the space on one side and the space on the other side across the sliding door.
According to this configuration, the air permeability inside and outside the sliding door can be ensured by the gap during normal times, and flames and smoke that try to pass through the gap can be blocked by the detour during a fire.

As a third feature, the bypass route protrudes from the sliding door in the door thickness direction and the protruding end side is bent so that the protruding end side is along the sliding door surface, and the sliding door surface protrudes from the frame body. It is comprised from the frame side protrusion piece part provided so that it might enter between the said sliding door side protrusion pieces part.
According to this configuration, an effective detour can be configured with a simple structure in the gap between the frame and the sliding door.

As a fourth feature, the upper portion of the frame body is configured by an upper horizontal frame extending in the horizontal direction, and the upper end side of the sliding door is inserted into the upper horizontal frame. The detour projects from the upper end side of the sliding door in the door thickness direction, and the projecting end side of the sliding door is bent downward along the sliding door surface. And the frame-side protruding piece portion provided so as to enter from the lower side between the sliding door surface and the sliding door-side protruding piece portion.
According to this configuration, an effective detour can be formed on the upper end side of the sliding door with a simple structure.

A fifth feature of the present invention is that the upper side frame is formed in a hollow shape, and a suspension car that suspends the sliding door inside the upper side frame and a guide rail that guides the suspension car in the lateral width direction. In the apparatus, the bypass route connects a space on one side and a space on the other side sandwiching the sliding door through the inside of the upper horizontal frame.
According to this configuration, the bypass constructed on the upper end side of the sliding door ensures air permeability during normal times and prevents passage of flames and smoke during fires. In addition, since flame, smoke, and the like are temporarily stored in the space in the upper horizontal frame, it is possible to delay the passage of the flame, smoke, etc. into and out of the sliding door. In addition, the suspension wheel and the guide rail in the upper lateral frame can act as an obstacle against the flame and smoke that are about to pass.

As a sixth feature, the frame body includes a vertical frame that is close to the sliding door surface near the door butt when fully closed from the door thickness direction side, and the detour includes the door thickness from the door butt side of the sliding door. Projecting in the direction and the projecting end side of the sliding door side projecting piece part bent in the door end direction along the sliding door surface, and projecting from the vertical frame in the frame body between the sliding door surface and the sliding door side projecting piece part And the frame-side protruding piece provided so as to enter from the door-end direction side.
According to this configuration, it is possible to effectively prevent flames, smoke, and the like from passing through the gap on the door bottom side of the sliding door when fully closed.

Next, a preferred specific example of the present embodiment having the above features will be described in detail with reference to the drawings.
The following specific examples are arranged in openings in constructions and structures such as hospitals, buildings, houses, warehouses, factories, and vehicle loading platforms. This will be described as an example applied to an upward-sliding type sliding door device that is moved substantially linearly.

The sliding door device 1 includes a frame body 10 having a passage opening A having a rectangular shape when viewed from the front, and a sliding door 20 that opens and closes the passage opening A by movement in the lateral width direction (see FIG. 1).
This sliding door device 1 has the same intrusion direction after directing the fluid that has entered the gap into the gap between the sliding door 20 and the frame body 10 when the passage opening A is closed, in the direction opposite to the entry direction. The detours s1 and s2 (see FIGS. 13 and 14) to return to are formed.

The frame 10 includes an upper horizontal frame 11 positioned above the opening / closing path of the sliding door 20, and a door-end side vertical frame 12 positioned on the closing direction side (the left end side according to FIG. 1) of the passage opening A. The center side vertical frame 13 located near the center of the opening / closing range of the sliding door 20 and the door bottom side vertical frame 14 positioned so as to face the door bottom of the sliding door 20 when fully opened.
According to the example shown in FIG. 1, the frame body 10 has a passage opening A disposed in the left portion of the frame, and a door pocket portion B for housing the sliding door 20 in the right portion of the frame. It is arranged and fitted to the inner edge of the opening of the construction structure or the like, and the door pocket portion B is embedded in the wall of the construction structure or the like.

  The upper horizontal frame 11 includes an opening-side portion 11a located above the passage opening A and a door-side portion 11b located above the door-sack portion B, and is formed in a substantially hollow box shape continuous in the sliding door opening / closing direction. Is done. The opening side portion 11a and the door pocket side portion 11b may be an integral member extending in the sliding door width direction, or may be formed by joining separate members. The upper end of the sliding door 20 is inserted into the lower end of the upper horizontal frame 11.

  As shown in FIG. 2, the opening side portion 11 a of the upper horizontal frame 11 includes a base portion 11 a 1 having a substantially inverted L-shaped longitudinal section and a cover portion 11 a 2 that can be attached to and detached from the base portion.

Further, as shown in FIG. 3, the door side portion 11b of the upper horizontal frame 11 includes a base portion 11b1 having a substantially inverted L-shaped longitudinal section and a fire plate 11b2 that is detachably attached to the base portion. .
The fire prevention plate 11b2 has a hook-like hooking portion 11b21 (see FIGS. 3 and 12B) on the upper end side thereof, and the hooking portion 11b21 is recessed to the inside of the door pocket portion B and hooked on the base portion 11b1. It is fixed by welding (see FIG. 3).

  Further, in the upper horizontal frame 11, a guide rail 11c (see FIGS. 2 and 3) having a substantially L-shaped cross section extending over substantially the entire length in the lateral width direction, and a braking device that alleviates an impact when fully closed (or fully opened). 11d (see FIG. 2), drive device 11e (see FIG. 5) for urging the sliding door 20 in the closing direction, a door contact member 11f (see FIG. 3) that receives the sliding door 20 when fully opened, and a receiving member below the guide rail 11c 11g etc. are provided.

The receiving member 11g is a member having a substantially L-shaped vertical cross section that covers the guide rail 11c from the lower side in the sliding door opening and closing direction. In detail, the receiving member 11g is formed slightly longer than the lateral width of the sliding door 20 and has a passage opening. It is fixed to the base portion 11a1 of the upper lateral frame 11 in a state where the end portion on the sliding door opening direction side is inserted into the door pocket portion B while continuing over the entire length of the portion A in the lateral width direction. As shown in FIG. 2, the protruding end side in the door thickness direction of the receiving member 11 g covers the guide rail 11 c and the suspension vehicle 24 from below and is bent upward so as to interfere with or come into contact with the suspension vehicle 24 and the support bracket 23. In order to avoid this, it is located so as to enter between the suspension wheel 24 and the support bracket 23. The material of the receiving member 11g may be any material having good heat resistance and corrosion resistance, such as a galvanized steel sheet.
According to the receiving member 11g, when the guide rail 11c, the suspension vehicle 24, the braking device 11d, the driving device 11e (see FIG. 5) and the like are melted due to high heat at the time of a fire, Prevents objects from falling.

The inverted L-shaped base 11a1 of the upper horizontal frame 11 has a frame-side protruding piece 11a11 that constitutes the detour s1 on the lower end side. Similarly, the cover 11a2 also has a detour on the lower end side. It has the frame side protrusion piece part 11a21 which comprises s1.
Each of the frame-side protruding piece portions 11a11 and 11a21 has an opening edge (see FIG. 2) into which the sliding door 20 is inserted at the lower end surface of the opening-side portion 11a (see FIG. 1) of the upper lateral frame 11. It is formed by bending upward at a position close to the door, and is continuous in the width direction of the sliding door 20.

Moreover, the door end side vertical frame 12 is a member located in the edge part by the side of the sliding door closing direction of the opening part A for passages, and has continued in the up-down direction ranging from the upper side horizontal frame 11 to a floor surface (refer FIG. 1). . A concave portion 12a for fitting and removing the door tip of the sliding door 20 is formed on the surface facing the sliding door 20 in the door tip side vertical frame 12 (see FIG. 4).
In addition, in FIG. 4, the code | symbol 12b is a plate-shaped reinforcement material which prevents the door-end side vertical frame 12 from thermally deforming at the time of a fire, and two or more are welded at intervals up and down.

The center-side vertical frame 13 is a member that forms the inner edge of the passage opening A on the sliding door opening direction side, is continuous in the vertical direction from the lower end of the upper horizontal frame 11 to the floor surface, and is the sliding door when the opening operation is performed. 20 has an opening for inserting.
Further, as shown in FIG. 4, frame body side projecting pieces 13 a and 13 a are provided on the inner side of the opening in the central side vertical frame 13 so as to be positioned on both sides in the door thickness direction with the sliding door 20 interposed therebetween.
Each of the frame-side protruding piece portions 13a, 13a protrudes from the inner edge of the opening of the center-side vertical frame 13 to the sliding door 20 surface side, and is bent substantially in the cross section along the sliding door 20 surface in the door bottom direction. It is formed in an L shape (see FIG. 4) and is continuous over substantially the entire length of the passage opening A in the vertical direction.

  Moreover, the door bottom side vertical frame 14 is a member which comprises the edge part by the side of the sliding door opening direction of the door pocket part B (refer FIG. 1), and has continued in the up-down direction ranging from the upper side horizontal frame 11 to a floor surface. A buffer member 15 (for example, an elastic body such as rubber) is fixed to the door end side vertical frame 14 to receive the door end side end portion of the sliding door 20 when fully opened (see FIG. 4). ).

The space between the center side vertical frame 13 and the door bottom side vertical frame 14 is a door pocket portion B that houses the sliding door 20 when opened, and both end surfaces in the door thickness direction of the door pocket portion B are shown in FIG. Thus, it is comprised by fireproof fire-proof board 11b2, 11b3, 11b4 (for example, an iron plate etc.).
3 and 4, reference numeral 11 p is a welded portion that welds the fire prevention plates 11 b 2, 11 b 3, and 11 b 4 to the base 11 b 1 and other panel materials. The welded portion 11p and the joint location by the welded portion 11p are provided in a portion where the fireproof plates 11b2, 11b3, and 11b4 are partially recessed to the inside of the door pocket portion B so as to avoid interference with the inner surface of the outer wall material x. The welding part 11p may be provided continuously in the horizontal width direction, or may be provided intermittently in the horizontal width direction.

  The sliding door 20 includes a sliding door body 21 (see FIG. 1) having a substantially rectangular shape when viewed from the front, an upper end side flameproof auxiliary member 22 (see FIG. 2) fixed to the upper end surface of the sliding door body 21, and a flameproof auxiliary member 22. The support bracket 23 and the suspension wheel 24 (see FIG. 2) projecting upward from the door, and the door butt side flameproof auxiliary member 25 (see FIG. 4) fixed to the door butt side end surface of the sliding door body 21. The sliding door 20 is suspended from the guide rail 11c by a suspension wheel 24, and the lower end side is fitted to a guide roller 26 (see FIG. 2) on the floor surface, and linearly moves in the lateral width direction.

  The sliding door main body 21 is configured in a rectangular plate shape that substantially covers the passage opening A, and an upper end portion thereof is inserted into the upper horizontal frame 11. The sliding door body 21 is configured in a hollow shape having a certain thickness, and the inside thereof is made of a material (for example, a heat insulating material, a soundproofing material, a fireproof member, a reinforcing material, etc.) according to the purpose of use of the sliding door device 1. A core material 21a is provided.

The upper end side flameproof auxiliary member 22 is a substantially rectangular plate-like member fixed to the upper end surface of the sliding door body 21 over substantially the entire length in the sliding door width direction (see FIGS. 8 and 9), and both end portions in the door thickness direction. From the front and back surfaces of the sliding door body 21 (see FIG. 2). On the protruding end side, there are a sliding door side protruding piece portion 22a that protrudes downward and forms a bypass s1 described later, and a protruding piece portion 22b that protrudes upward and prevents falling of a melt or the like in a fire (FIG. 2). And FIG. 13).
Moreover, the door butt side edge part 22c of the upper end side flame-proof auxiliary member 22 protrudes into the door pocket part B from the door edge side edge part of the sliding door 20 (refer FIG. 8), and the melted material at the time of a fire is inside the door bag part B. To prevent it from falling to the doorside.
The material of the upper end side flameproof auxiliary member 22 may be any material having good heat resistance and corrosion resistance, such as a galvanized steel sheet.

As shown in FIG. 13, the sliding door-side protruding piece 22a separates the protruding end in the door thickness direction of the upper-end-side flameproof auxiliary member 22 from the sliding door 20 surface rather than the frame-side protruding piece 11a21, and on the sliding door surface. It is formed by bending downward along.
This sliding door side protruding piece 22a is continuous over substantially the entire length of the sliding door 20 in the width direction.

Further, as shown in FIG. 13, the protruding piece 22b on the upper lateral frame 11 side is a sliding door protruding piece at a position where the protruding end side of the upper end side flameproof auxiliary member 22 is separated from the sliding door 20 surface. Contrary to the portion 22a, it protrudes upward and is continuous over substantially the entire length in the width direction of the sliding door 20.
The protrusions 22b are provided at both ends of the upper end side flameproof auxiliary member 22 in the door thickness direction. For example, when the guide rail 11c (aluminum alloy) or the suspension wheel 24 (synthetic resin material) is melted in a fire. , And prevent these melts from falling down.

  Further, as shown in FIG. 9, a plurality of gas vent holes 22 d are provided on the upper surface of the upper end side flameproof auxiliary member 22. These degassing holes 22d communicate with the space in the sliding door 20 and allow the gas in the sliding door 20 generated by the high temperature during a fire to escape into the upper lateral frame 11.

  On the upper surface of the upper end side flameproof auxiliary member 22, a cylindrical bank portion 22e protruding upward from the upper surface of the upper end side flameproof auxiliary member 22 is provided around the gas vent hole 22d (see FIG. 9). The bank portion 22e prevents a melt due to a high temperature during a fire from entering the sliding door 20 through the gas vent hole 22d. As a result, the core material 21a, the adhesive, and the like in the sliding door 20 are melted by the melt. Prevent fire or ignition.

Moreover, as shown in FIG. 9, the door-end side protrusion piece part 22f and the door-end side protrusion piece part 22g are each provided in the door-end side and door-end side in the upper surface of the upper end side flame-proof auxiliary member 22. . These projecting piece portions 22f and 22g protrude upward from the upper surface of the upper end side flameproof auxiliary member 22 and are continuous between the projecting piece portions 22b and 22b on both sides in the door thickness direction.
The door end side protruding piece portion 22f prevents the melt at the time of a fire from falling to the door end side. Moreover, the door bottom side protrusion piece part 22g prevents the molten material at the time of a fire falling to the door bottom side.

  In FIG. 9, reference numeral 22h denotes an attachment hole for fixing the support bracket 23 of the suspension vehicle 24. In order to prevent the melt of the suspension vehicle 24 from falling into the gas vent hole 22d in the event of a fire, It is provided at a position away from the door width direction.

Further, a plurality of support brackets 23 and suspension vehicles 24 are supported on the upper end surface of the sliding door body 21 (specifically, the upper end side flameproof auxiliary member 22) at intervals in the sliding door width direction (two in the illustrated example). The
According to the illustrated example, the support bracket 23 is a metal fitting having an L-shaped cross section, and its bottom piece is fixed to the upper end of the sliding door body 21 and the suspension wheel 24 is rotatably supported by the vertical piece protruding upward. doing.
The suspension wheel 24 is formed in, for example, a thin cylindrical shape from a synthetic resin material or the like, and is engaged so that its outer peripheral surface rolls on the guide rail 11c.

  Further, the door butt side flameproof auxiliary member 25 is a substantially rectangular plate-like member fixed to the door butt side end surface of the sliding door main body 21 over substantially the entire length of the sliding door vertical direction (FIGS. 4, 10, and 11). reference). Sliding door side protrusions 25a that protrude from the surface of the sliding door main body 21 and also protrude in the door tip direction are formed at both ends of the door bottom side flameproof auxiliary member 25 in the door thickness direction. This sliding door side protruding piece 25a constitutes a detour s2 described later.

  According to the sliding door device 1 configured as described above, particularly when the sliding door 20 is fully closed or substantially fully closed, between the sliding door side protruding piece portion 22a and the frame body side protruding piece portions 11a11 and 11a21, and between the sliding door 20 and the sliding door. A gap is provided between the side protrusions 22a so as to form detours s1 and s2 and to avoid interference and contact with the sliding door 20 when the sliding door 20 is opened and closed.

Next, the detours s1 and s2 provided in the gap will be described in detail.
As shown in FIG. 13, the detour path s <b> 1 on the upper end side of the sliding door 20 protrudes from the upper end of the sliding door 20 in the thickness direction and protrudes downward, or protrudes from the lower end side of the upper horizontal frame 11 to slide the sliding door surface. Frame body side projecting piece portions 11a21 and 11a11 that enter from below and the sliding door side protruding piece portion 22a. The detour s1 communicates one space sandwiching the sliding door 20 and the other space (for example, the space on the left and right of the sliding door 20 in FIG. 13) via the inside of the upper horizontal frame 11.
More specifically, as shown by a two-dot chain line in FIG. 13, the bypass s <b> 1 is on the one side in the door thickness direction of the sliding door 20 (the right side according to FIG. 13) and the sliding door 20 surface and the frame side. The fluid that has entered between the projecting pieces 11a21 is applied to the upper-end-side flameproof auxiliary member 22, bent in a substantially U-turn shape in the opposite direction to the intrusion direction (downward according to FIG. 13), and the frame-side protruding piece 11a21. And the sliding door-side protruding piece 22a are passed in the opposite direction, bent against the bottom surface in the upper horizontal frame 11, and returned to the intrusion direction (upward according to FIG. 13). A substantially serpentine path leading to is formed. Similarly, the bypass s1 on the other side of the sliding door 20 in the thickness direction (left side according to FIG. 13) also forms a substantially meandering path symmetrical to the above.

Further, as shown in FIG. 14, the bypass s <b> 2 on the door butt side of the sliding door 20 protrudes from the door butt side end of the sliding door 20 in the door thickness direction and extends in the door tip direction 25 a. The space in the frame-side protruding piece portion 13a and the door pocket portion B that protrudes from the door end side end portion of the central vertical frame 13 to the sliding door 20 surface side and enters between the sliding door 20 surface and the sliding door-side protruding piece portion 25a. Composed of etc. The bypass s2 communicates one space sandwiching the sliding door 20 and the other space (for example, the space above and below the sliding door 20 in FIG. 14) via the inside of the door pocket portion B.
More specifically, as shown by a two-dot chain line in FIG. 14, the bypass s <b> 2 is formed on one side in the door thickness direction of the sliding door 20 (lower side according to FIG. 14) and the frame of the sliding door 20. The fluid that has entered between the body-side projecting pieces 13a is applied to the door-end side flameproof auxiliary member 25 and directed in a substantially U-turn shape in the opposite direction to the entry direction (leftward according to FIG. 14). After passing between the piece portion 13a and the sliding door side protruding piece portion 25a in the reverse direction, it is bent against the inner surface of the central vertical frame 13 and returned to the intrusion direction (right direction according to FIG. 14). A substantially serpentine path leading into B is formed. Similarly, the bypass path s2 on the other side of the sliding door 20 in the door thickness direction (upper side according to FIG. 14) forms a substantially meandering path symmetrical to the above.

In FIG. 13, reference numerals 21 b and 21 c are surface plates that constitute the front and back portions of the sliding door body 21, and are provided in a substantially rectangular plate shape on each of the front and back portions of the sliding door body 21.
In FIG. 13, reference numeral 21 d is an aggregate having a U-shaped cross-section continuous in the sliding door width direction, and surface plates 21 b and 21 c are bonded to both end faces in the door thickness direction.
In FIG. 13, reference numeral 21 e is a U-shaped reinforcing material that is continuous in the sliding door width direction, and is fitted over the upper end of the sliding door main body 21 in the thickness direction, so that the surface plate 21 b due to high heat during a fire. , 21c is prevented from peeling off from the aggregate 21d.

Further, in FIG. 14, reference numeral 21 f is an aggregate having a U-shaped cross section that continues in the vertical direction along the inner surface on the door bottom side of the sliding door body 21, and the surface plates 21 b and 21 c are provided at both end surfaces in the door thickness direction. Is glued.
In FIG. 14, reference numeral 21 g is a U-shaped reinforcing member that continues in the vertical direction along the outer surface of the sliding door body 21 on the door butt side, and straddles the door butt side end of the sliding door body 21 in the thickness direction. By fitting together, the surface plates 21b and 21c are prevented from being peeled off from the aggregate 21f due to high heat during a fire.

Further, in FIG. 15, reference numeral 21 h is an aggregate having a U-shaped cross section that continues in the width direction of the sliding door along the inner surface on the lower end side of the sliding door main body 21, and the surface plates 21 b and 21 c are provided on both end faces in the door thickness direction. Is glued.
In FIG. 15, reference numerals 21b1 and 21c1 denote bent portions having a substantially U-shaped cross section formed by crushing and bending the lower ends of the surface plates 21b and 21c, respectively. The bent portions 21b1 and 21c1 are respectively fitted in a concave shape to the lower edge of the aggregate 21h, thereby preventing the surface plates 21b and 21c from being peeled off from the aggregate 21h due to a high temperature during a fire.
In particular, as shown in the bottom view of the sliding door 20 in FIG. 10, the gap c between the bent portions 21b1, 21c1 and the reinforcing member 21m, the gap c between the bent portions 21b1, 21c1 and the reinforcing member 21g, and the gap between the aggregate 21h and the reinforcing member 21m. c, The gap c between the aggregate 21h and the reinforcing material 21g is set to 0 mm or a dimension close to 0 mm. Therefore, the gas in the sliding door main body 21 can be prevented from flowing out from the gap c due to high heat during a fire or the like.

In FIG. 6, reference numeral 27 denotes a rectangular plate-shaped small window made of heat-resistant plate glass, and reference numeral 27a denotes a frame material that supports the periphery of the small window 27 via packing or the like.
In FIG. 6, reference numerals 21 i and 21 j denote aggregates that receive the frame material 27 a of the small window 27. These aggregates 21i and 21j are continuous over substantially the entire length of the sliding door body 21 in the vertical direction, as shown in FIG. In particular, the aggregate 21j on the door bottom side secures a passage-like space continuous in the vertical direction on the door bottom side in the sliding door main body 21, and this space does not let the gas generated at the time of the fire escape in the lateral width direction or downward. To the upper vent hole 22d (see the two-dot chain line in FIG. 8).

Moreover, in FIG.1 and FIG.7, the code | symbol 28 is a lock device which locks the sliding door 20 at the time of full closure. Reference numeral 21k1 (see FIG. 7) is an aggregate that reinforces the endmost portion of the sliding door body 21, and a cutout 21k11 for assembling the lock device 28 is formed on the upper end of the aggregate 21k1. Is done. In order to prevent a decrease in strength due to the notch 21k11, a reinforcing member 21k2 having a U-shaped cross section is provided inside the portion having the notch 21k11 in the aggregate 21k1.
That is, if the structure does not have the reinforcing material 21k2, the aggregate 21k1 may be deformed inward in the door thickness direction due to the high temperature at the time of the fire. It can be blocked by the U-shaped aggregate 21k2.

  Two reinforcing plates 21k3 and 21k3 spaced from each other in the thickness direction are welded and fixed to the reinforcing member 21k2. The lock device 28 is assembled so that the reinforcing plates 21k3 and 21k3 are sandwiched therebetween and inserted.

  Further, in FIG. 7, reference numeral 21 m is a U-shaped reinforcing material that is continuous in the vertical direction along the outer surface of the sliding door main body 21 on the door tip side, and in the thickness direction at the door tip side end of the sliding door main body 21. By straddling each other, the surface plates 21b and 21c are prevented from being peeled off from the aggregate 21k1 due to high heat during a fire.

Next, characteristic actions and effects of the sliding door device 1 having the above configuration will be described in detail.
As shown in FIG. 13, in the fully closed state of the sliding door 20, normally, by the detour s <b> 1 between the upper lateral frame 11 and the sliding door 20 and the detour s <b> 2 between the central vertical frame 13 and the sliding door 20, Since a gap is secured between the frame body 10 and the sliding door 20, the air permeability inside and outside the sliding door 20 can be secured by this gap, and the opening / closing operability of the sliding door 20 can be well maintained.
In the unlikely event that a fire, smoke, or the like enters the gap and tries to pass inside or outside the sliding door 20, these flames, smoke, etc. are shown in two-dot chain lines in FIGS. As shown by, it is detoured by detours s1 and s2. In particular, in the upper lateral frame 11, the guide rail 11c, the support bracket 23, the suspension wheel 24, and the like also act as obstacles to flames and smoke.
Therefore, it is possible to effectively prevent the passage of flames and smoke into and out of the sliding door 20, and as a result, the sliding door device 1 functions as a fire prevention facility (fire door) that does not allow the flame at the time of fire to pass through the building. It becomes possible.

Next, the sliding door apparatus 2 which is another specific example of this Embodiment is demonstrated (refer FIG. 16). In addition, about this sliding door apparatus 2, the detailed description is abbreviate | omitted by attaching | subjecting the same code | symbol about the part substantially the same as the said sliding door apparatus 1. FIG.
The sliding door device 1 (see FIG. 1) described above arranges the sliding door 20 within the thickness t of the wall portion of the construction structure, whereas the sliding door device 2 (see FIG. 16) shown below is a construction structure. The sliding door 20 ′ is arranged so as to protrude in the thickness direction from the wall portion (referred to as an imposition type).

  The sliding door device 2 includes a frame body 10 ′ having a rectangular passage opening A inside, and a sliding door 20 ′ that opens and closes the passage opening A by movement in the lateral width direction.

The frame body 10 'is an upper horizontal frame (not shown) located on the upper side of the opening / closing path of the sliding door 20' and a door located on the opening direction side of the passage opening A (the left end side according to FIG. 16). The front-side vertical frame 12 ', the central-side vertical frame 13' located near the center of the opening / closing range of the sliding door 20 ', and the door-side side vertical frame 14 positioned so as to face the door-side of the sliding door 20' when fully opened 'And.
A detour is formed between the upper horizontal frame (not shown) of the frame body 10 'and the sliding door 20' in substantially the same manner as the sliding door device 1 (see FIG. 13). A bypass path s3 described later is formed between the door butt side portion of the sliding door 20 ′ and the door butt side vertical frame 14 ′ (see FIG. 16).

The door end side vertical frame 12 ′ is a member located at the end of the passage opening A on the sliding door closing direction side, and protrudes in the thickness direction (downward according to FIG. 16) from the wall portion of the construction structure or the like. A concave portion 12a ′ for fitting and removing the door of the sliding door 20 ′ is formed in the protruding portion in the vertical direction.
In this door-end side vertical frame 12 ', as shown by a broken line in FIG. 16, a reinforcing member 12b' having a substantially L-shaped cross section extending in the door thickness direction is fixed. A plurality of the reinforcing members 12b ′ are arranged at intervals in the vertical direction, and the portion of the frame 10 ′ on the sliding door 20 ′ side (the lower portion in FIG. 16) is in the horizontal width direction (FIG. 16) due to thermal deformation during a fire. To prevent it from spreading to the left).

The center-side vertical frame 13 ′ is a member that forms an inner edge on the door bottom side of the passage opening A and overlaps with a rear end side portion of the sliding door 20 ′ when fully closed.
On one end side (lower end side according to FIG. 16) in the door thickness direction of the central side vertical frame 13 ′, a frame body side protruding piece 13a ′ is provided so as to protrude in the door thickness direction and face in the door butt direction. . The frame-side protruding piece 13a ′ is provided continuously in the vertical direction and constitutes a detour s3 described later.
In FIG. 16, reference numeral 13 b ′ is a reinforcing material that prevents thermal deformation of the central vertical frame 13 ′.

  The door bottom side vertical frame 14 ′ protrudes from the wall portion of the construction structure or the like to the sliding door 20 ′ side (downward according to FIG. 16), and is continuous in the vertical direction from the upper horizontal frame (not shown) to the floor surface. It is formed. This door butt side vertical frame 14 'comprises the door butt side edge part of the door pocket part B for accommodating the sliding door 20'.

The sliding door 20 ′ has a configuration in which the door butt side flameproof auxiliary member 25 is replaced with the door butt side flameproof auxiliary member 25 ′ with respect to the sliding door 20.
The door butt side flameproof auxiliary member 25 ′ is a substantially rectangular plate-like member fixed to the door butt side end surface of the sliding door body 21 over substantially the entire length of the sliding door vertical direction. This door butt side flameproof auxiliary member 25 ′ is formed with a sliding door side protrusion 25a ′ that protrudes toward the center side vertical frame 13 ′ side from the surface of the sliding door main body 21 and also protrudes in the door tip direction (FIG. 16). This sliding door side protrusion 25a 'constitutes a detour s3 described later.

  And according to the said structure, detour s3 is comprised between sliding door side protrusion piece 25a 'and frame side protrusion piece part 13a', and between sliding door 20 'and frame side protrusion piece part 13a. Therefore, when the sliding door 20 ′ is opened and closed, a gap is provided to avoid interference and contact with the sliding door 20 ′.

  As shown in FIG. 16, the detour path s3 provided in the gap protrudes from the door butt side end of the sliding door 20 ′ to the central vertical frame 13 ′ side and extends in the door tip direction. And a frame-side protruding piece 13a 'that protrudes from the central vertical frame 13' to the sliding door 20 'surface side and enters between the sliding door 20' surface and the sliding door-side protruding piece 25a '. It is a substantially meandering passage. The bypass s3 communicates one space sandwiching the sliding door 20 'with the other space (the space above and below the sliding door 20' according to FIG. 16).

Therefore, according to the sliding door device 2 having the above-described configuration, normally, a detour (not shown) between the upper horizontal frame (not shown) and the sliding door 20 ′, and the central vertical frame 13 ′ and the sliding door 20 ′. Since a gap is secured between the frame body 10 'and the sliding door 20' by the detour s3 between the two, the air permeability inside and outside the sliding door 20 'can be secured by this gap, and the opening and closing of the sliding door 20' is also possible. Good operability can also be maintained.
In the unlikely event that a fire or the like causes a flame or smoke to enter the gap and pass through the sliding door 20 ', the flame or smoke is diverted by the bypass s3. .
Therefore, it is possible to effectively prevent the passage of flames and smoke into and out of the sliding door 20 ', and as a result, the sliding door device 2 functions as a fire prevention facility (fire door) that does not allow the flame at the time of fire to pass inside or outside the building. It is also possible to make it.

  In addition, according to the sliding door devices 1 and 2 in the illustrated example, the detours s1, s2, and s3 are provided on the upper end side and the door bottom side of the sliding doors 20 and 20 ′. The road can be provided on the door end side or the lower end side of the sliding door.

  Further, the detours s1, s2, and s3 may increase the number of times of meandering in a substantially S shape as compared to the illustrated example to more effectively prevent the passage of flames and smoke.

Further, the upper end side flameproof auxiliary member 22 can be replaced with an upper end side flameproof auxiliary member 22 'shown in FIG. The upper end side flameproof auxiliary member 22 ′ is obtained by replacing the bank portion 22e of the upper end side flameproof auxiliary member 22 (see FIG. 9) with a bank portion 22e ′.
The bank portion 22e 'is a member having the same configuration as the protrusions 22f and 22g on the door end side and the door bottom side. The bank portion 22e' is provided as a pair with the gas vent hole 22d interposed therebetween. The molten material that has fallen from above is prevented from entering the gas vent hole 22d.

  Further, in the above aspect, the sliding door device having a particularly high fire resistance performance is configured, but the structures such as the latching portion 11b21 and the welded portion 11p are applied to a normal sliding door device having a lower fire resistance performance than the above aspect, The operational effects such as workability described above are exhibited.

  Moreover, in the said aspect, although the upper end side flame-proof auxiliary member 22 and the door bottom side flame-proof auxiliary member 25 made symmetrical shape in the door thickness direction, respectively, and aimed at the improvement of productivity, as another example, these are asymmetrical shapes. Is possible.

Further, in the above aspect, as a particularly preferable specific example, the downward sliding door side protruding piece 22a and the upward protruding piece 22b are provided on one side and the other side in the door thickness direction. In this case, either one can be omitted.
Also, depending on the purpose of use, such as when only prevention of falling of the melt or the like is required, or when only the effect of the detour s1 is required, one of the sliding door side protruding piece 22a and protruding piece 22b It can be omitted.

In addition, when one or more aggregates or reinforcing materials are incorporated in the sliding door 20 for the purpose of reinforcing the sliding door 20, the direction of the vertical direction, the lateral width direction, etc. of the sliding door 20 is arbitrary. Is possible. However, when the gas vent hole 22d is provided upward as in the example of FIG. 8, the aggregate or the like is moved up and down in order to make it difficult to prevent the movement of the gas generated in the hollow portions C1 and C2. It is preferable to incorporate in the direction.
As another example, when the gas vent hole 22d is provided only on the door bottom side, the aggregate is formed so as not to prevent the flow of gas generated in the hollow portion in the sliding door body 217 to the door bottom side. Etc. are preferably incorporated in the width direction (left-right direction). In any case, it is preferable that the end of the aggregate is located at a position avoiding the gas vent hole 22d.

DESCRIPTION OF SYMBOLS 1, 2: Sliding door apparatus 10, 10 ': Frame 11: Upper side horizontal frame 11a11, 11a21: Frame side protrusion piece 12, 12': Door end side vertical frame 13, 13 ': Center side vertical frame 13a, 13a' : Frame body side protruding pieces 14, 14 ': door bottom side vertical frames 20, 20': sliding doors 22, 22 ': upper end side flameproof auxiliary member 22a: sliding door side protruding pieces 25, 25': door edge side flameproofing Auxiliary member 25a, 25a ': Sliding door side projecting piece s1, s2, s3: Detour A: Passage opening B: Door pocket

Claims (6)

In a sliding door device comprising a frame having a passage opening on the inside, and a sliding door that opens and closes the passage opening by moving in the width direction of the frame,
In the gap between the sliding door and the frame when the passage opening is closed, a detour is formed in which the fluid that has entered the gap is directed in the opposite direction to the entry direction and then returned to the entry direction. A sliding door device characterized by being made.   2. The sliding door device according to claim 1, wherein the gap is a gap formed so as to communicate a space on one side and a space on the other side across the sliding door.   The bypass route protrudes from the sliding door in the door thickness direction and is bent so that the protruding end side is along the sliding door surface, the sliding door surface and the sliding door side protruding piece portion protruding from the frame body The sliding door device according to claim 1, wherein the sliding door device is configured by a frame-side protruding piece portion provided so as to enter between. The upper part of the frame body is constituted by an upper horizontal frame that extends in the horizontal direction, and the sliding door device in which the upper end side of the sliding door is inserted into the upper horizontal frame,
The detour projects from the upper end side of the sliding door in the door thickness direction and protrudes from the upper lateral frame of the frame body and the sliding door side protruding piece portion bent downward along the sliding door surface. The sliding door device according to claim 3, wherein the frame door side protruding piece portion is provided so as to enter from a lower side between the sliding door surface and the sliding door side protruding piece portion.   The upper horizontal frame is formed into a hollow shape, and the sliding door device includes a suspension vehicle that suspends the sliding door and a guide rail that guides the suspension vehicle in a lateral width direction inside the upper lateral frame, the bypass 5. The sliding door device according to claim 4, wherein the road communicates a space on one side and the space on the other side sandwiching the sliding door through the inside of the upper horizontal frame. The frame body includes a vertical frame that is close to the sliding door surface near the door butt when fully closed from the door thickness direction side,
The detour protrudes from the door butt side of the sliding door in the door thickness direction and the protruding end side is bent in the door tip direction along the sliding door surface, and the vertical frame in the frame body 6. The sliding door device according to claim 3, wherein the sliding door device includes the frame-side projecting piece provided so as to protrude from the door-end direction side between the sliding door surface and the sliding door-side projecting piece. .

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