JP2014206011A - Sliding door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sliding door device capable of preventing leakage of gas generated in a sliding door in occurrence of fire to an indoor side.SOLUTION: In a sliding door device constructed so that a sliding door 20 having hollow parts C1 and C2 in an inside thereof is opened and closed in a lateral width direction, a degassing hole 22d communicating the hollow parts C1 and C2 with the outside of the sliding door is provided at least in a part of a peripheral end side of the sliding door 20, and a hollow gas storage part (upper horizontal frame 11) covering the degassing hole 22d without interfering opening and closing action of the sliding door 20 is provided on an immovable portion in the periphery of the siding door 20, and thus, gas in the hollow parts C1 and C2 is stored in the gas storage part (upper horizontal frame 11) through the degassing hole 22d.

Description

  The present invention relates to a sliding door device that opens and closes an opening by moving the sliding door in the 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 device as in the above-described prior art, the sliding door (20) is formed in a hollow shape composed of a front surface plate on both sides and an aggregate connecting the surface plates, and the sliding door (20) has an inside. A core material (for example, a paper core, a soundproof material, a heat insulating material, etc.) is provided.
Therefore, when the inside of the sliding door (20) is subjected to a flame in the event of a fire or the like and becomes hot, the core material, the adhesive fixing the surface plate, etc., and other things melt or volatilize. However, organic gas may be generated. And if the said gas leaks outside through the clearance gap etc. of the junction part of the said surface board, there exists a possibility of having a bad influence on a passerby, an external object, etc.

JP-A-2005-90040

  The present invention has been made in view of the above-described conventional circumstances, and a problem to be solved by the present invention is to provide a sliding door device capable of preventing gas generated in the sliding door during a fire or the like from leaking into the indoor side or the like. It is in.

  One means for solving the above problem is a sliding door device that opens and closes a sliding door in which a hollow portion is formed in a lateral width direction, and the hollow portion is provided at least at a part on a peripheral end side of the sliding door. A gas vent hole communicating with the outside of the sliding door is provided, and a hollow gas accommodating portion that covers the gas vent hole without hindering the opening / closing operation of the sliding door is provided at an immovable portion around the sliding door, and the gas in the hollow portion is It is configured to be accommodated in the gas accommodating portion through the gas vent hole.

  Since the present invention is configured as described above, it is possible to prevent the gas generated in the sliding door during a fire or the like from leaking to the indoor side.

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 that the sliding door device is configured to open and close a sliding door in which a hollow portion is formed inside in the lateral width direction. A gas vent hole communicating with the outside of the sliding door is provided, and a hollow gas accommodating portion that covers the gas vent hole without hindering the opening / closing operation of the sliding door is provided at an immovable portion around the sliding door, and the gas in the hollow portion is It was made to be accommodated in the gas accommodating part through the gas vent hole.
According to this configuration, when gas is generated in the sliding door due to high heat at the time of a fire or the like, this gas can be passed through the gas vent hole and escaped to the gas storage portion.
The “peripheral end side of the sliding door” includes an upper end portion, a door tip side end portion, a door butt side end portion, a lower end portion, a portion near the end portion of the sliding door front and back surfaces, etc. In order to effectively remove the gas in the part, it is preferable to be located in the upper end part of the sliding door or in the vicinity of the upper end part.
Further, the “gas storage part” includes an upper horizontal frame formed so as to cover the upper end part of the sliding door, a door bag part formed so as to cover a door bottom part of the sliding door, and the sliding door when fully closed. It is possible to use a door-end-side vertical frame formed so as to cover the door-end portion, a lower frame formed so as to cover the lower end portion of the sliding door, etc. For this purpose, it is preferable that the gas accommodating portion is an upper lateral frame or a door pocket portion.

As a second feature, the hollow portion is a space in which a peripheral wall is substantially sealed at a portion other than the gas vent hole.
According to this configuration, it is possible to prevent the gas generated in the sliding door during a fire or the like from leaking outside from a portion other than the gas vent hole.

As a third feature, the gas vent hole is provided in an upper end portion of the sliding door, and a hollow upper horizontal frame into which the upper end portion of the sliding door including the gas vent hole is inserted is located above the sliding door. The upper horizontal frame was used as the gas storage part.
According to this configuration, the gas in the sliding door rises due to heating in the event of a fire, etc., so that the raised gas is efficiently discharged from the vent hole at the upper end of the sliding door and stored in the upper horizontal frame. Can do.

As a fourth feature, a bank portion is provided in the vicinity of the gas vent hole in the upper end portion of the sliding door so as to serve as a barrier for a passage from the upper end portion into the gas vent hole.
According to this configuration, when an object in the upper lateral frame (for example, a guide rail or a suspension vehicle for hanging a sliding door) melts due to high heat at the time of a fire, and the molten material falls on the upper end of the sliding door, Further, it is possible to prevent the melted material at the upper end of the sliding door from entering the sliding door through the vent hole. As a result, the object (for example, core material or adhesive) in the sliding door is melted by the melt or the like. Volatilization can be prevented.

As a fifth feature, the bank portion is formed in a cylindrical shape covering the periphery of the gas vent hole.
According to this configuration, it is possible to effectively prevent the melt and the like from entering the vent hole by the cylindrical bank portion.

As a sixth feature, an aggregate continuous in the vertical direction is provided in the hollow portion in the sliding door, and a space partitioned by the aggregate communicates with the gas vent passage (see FIG. 8).
According to this configuration, the gas generated in the sliding door can be smoothly guided upward and discharged from the gas vent hole. As a result, the gas spreads in the lateral width direction in the sliding door, and from a slight gap between the members. This prevents leakage to the outside.

As a seventh feature, the sliding door includes two surface plates arranged at an interval in the door thickness direction, and an aggregate sandwiched between lower ends of the two surface plates, and the bone A bending portion formed by bending the material so as to wrap around the lower end edge of the aggregate on the lower end side of each of the surface plates, which is formed in a U-shaped cross-section with the opening facing downward and continuous in the width direction of the sliding door Was formed (see FIG. 15).
According to this configuration, the lower end side of the surface plate can be brought into close contact with the lower end edge of the aggregate by the bent portion, and as a result, the lower end side of the surface plate is peeled off from the aggregate due to thermal deformation or a gap is generated during a fire or the like. This prevents the internal gas from leaking.

As an eighth feature, an aggregate sandwiched between the two surface plates in the vicinity of at least one of the door end side end, door bottom side end and upper end of the sliding door, and In addition, a reinforcing material that fits the aggregate and the two surface plates in a U-shaped cross section from the outside is provided (FIGS. 7, 10, 11, 13, and 14).
According to this configuration, the U-shaped reinforcing member can prevent the surface plate from being turned up due to thermal deformation at the time of a fire and causing a gap to leak inside gas.

As a ninth feature, the reinforcing member is provided at each of the door end side end and the door bottom side end, and the gap between each of the reinforcing members and the end of the bent portion in the sliding door width direction is substantially zero. (See FIG. 10).
According to this configuration, it is possible to prevent the gas in the sliding door from flowing out of the gap between the reinforcing material and the end of the bending portion in the sliding door width direction due to high heat during a fire or the like.

As a more preferable feature, the sliding door device is configured such that an end portion side having the gas vent hole in the sliding door is inserted into the gas storage portion, and is provided in a gap between the sliding door and the gas storage portion. A detour is formed in which the traveling direction of the fluid entering the gap from the gas storage portion is directed in the reverse direction and then returned to the original direction.
According to this configuration, the gas stored in the gas storage portion can be delayed by the bypass route from leaking outside through the gap.

  Next, a preferred embodiment having the above features will be described in detail with reference to the drawings.

  The following examples are arranged in openings in constructions and structures such as hospitals, buildings, houses, warehouses, factories, and vehicle loading platforms, and the open / close bodies are suspended from guide rails in the upper frame portion in a substantially horizontal direction. 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).
In this sliding door device 1, the gas generated in the hollow portions C1 and C2 (see FIG. 8) in the sliding door 20 due to high heat due to a fire or the like passes through the gas vent hole 22d (in the illustrated example, the upper horizontal frame). 11 and in the door pocket part B).

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 10 has a passage opening A in the left part of the frame, and a door pocket for storing the sliding door 20 in the right part of the frame. The part B is arranged and fitted to the inner edge of the opening of the construction structure or the like, and the door pocket part B is embedded in the wall of the construction structure or the like.

The upper horizontal frame 11 is positioned on the upper side over the substantially entire length of the opening / closing range of the sliding door 20, is formed in a hollow shape that continues in the sliding door opening / closing direction and communicates with the door pocket B, and includes a gas vent hole 22d. The upper end side of the sliding door 20 is inserted.
The end of the upper horizontal frame 11 on the closing direction side (left side according to FIG. 1) is closed by a door-end side vertical frame 12, and the opening side of the upper horizontal frame 11 (right side according to FIG. 1). The end on the direction side is closed by the door-side vertical frame 14. Therefore, the space formed by the upper horizontal frame 11 and the door pocket portion B is other than the opening portion of the upper horizontal frame 11 for inserting the upper end side of the sliding door 20 and the opening portion of the door pocket portion B side where the sliding door 20 appears and disappears. The peripheral wall surface is closed in a substantially sealed manner.

  The upper lateral frame 11 has an opening side portion 11a located above the passage opening portion A and a door bag side portion 11b located above the door pocket portion B, and has a substantially hollow box shape continuous in the sliding door opening / closing direction. It is formed. The opening side portion 11a and the door pocket side portion 11b may be an integral member extending in the sliding door opening / closing direction, or may be formed by joining separate members.

  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, and is continuous in the sliding door opening / closing direction. Space is secured.

  Further, as shown in FIG. 3, the door side portion 11 b of the upper horizontal frame 11 includes a base portion 11 b 1 having a substantially inverted L-shaped longitudinal section and a fire prevention plate 11 b 2 that is detachably attached to the base portion. A space that continues in the opening and closing direction and communicates with the inside of the door pocket portion B is also secured.

  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. Are 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 longitudinal section that covers the guide rail 11c from the lower side in the sliding door opening / closing direction (see FIG. 2), and in detail, is formed slightly longer than the lateral width of the sliding door 20. In addition, the passage opening A is fixed to the base 11a1 of the upper lateral frame 11 in a state where the opening A is continuous over the entire length in the width direction and the end on the sliding door opening direction side is inserted into the door pocket B. 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.

  Further, as shown in FIG. 2, the inverted L-shaped base portion 11a1 of the upper horizontal frame 11 has a lower end formed in a cross-sectional concave shape having a frame-side protruding piece portion 11a11. Similarly, the cover portion 11a2 A lower end side is formed in the cross-sectional concave shape which has the frame side protrusion piece part 11a21. These concave portions of the cross section also function as receiving parts that receive falling objects such as melts in the event of a fire.

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 opening / closing body 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 opened. It has an opening part which inserts the sliding door 20 (refer FIG. 4).
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 shock absorbing material 15 (for example, an elastic body such as rubber) that receives the door end side end portion of the sliding door 20 when fully opened and relaxes the impact is fixed to the door bottom side vertical frame 14 (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, 11b4 are partially recessed toward the inside of the door pocket portion B so as to avoid interference with the inner surface of the 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 space D in the upper horizontal frame 11 communicates with the space in the door pocket portion B, and is an opening for inserting the upper end side of the sliding door 20 (in the drawing, an opening having a detour s1), and when the opening operation is performed. The part other than the opening (in the figure, the opening having the detour s2) for inserting the sliding door 20 is substantially sealed, and functions as a gas containing part for containing the gas discharged from the sliding door 20 in the event of a fire or the like. .

The sliding door 20 protrudes upward from the sliding door main body 21 having a substantially rectangular shape in front view, an upper end side flameproof auxiliary member 22 (see FIG. 2) fixed to the upper end surface of the sliding door main body 21, and the flameproof auxiliary member 22. A movable support portion 20a (support bracket 23 and suspension wheel 24) (see FIG. 2), a door butt side flameproof auxiliary member 25 (see FIG. 4) fixed to a door butt side end surface of the sliding door body 21, and a lock device 28 (Refer to FIG. 7), and at least a part of the sliding door 20 on the peripheral end side (upper end portion according to the illustrated example), the hollow portions C1 and C2 in the sliding door main body 21 communicate with the outside of the sliding door. A gas vent hole 22d (see FIG. 8) is provided.
The sliding door 20 is suspended from the guide rail 11c by the movement support portion 20a, and the lower end side is fitted to the guide roller 26 (see FIG. 2) on the floor, and moves straight 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 (see FIG. 2) is provided.
More specifically, the sliding door body 21 includes two surface plates 21b and 21c provided at intervals in the door thickness direction, and a plurality of aggregates 21f provided between the surface plates 21b and 21c. , 21h, 21i, 21j, 21k1, 21n, 21p, and a small window 27 provided on the center side, and has a plurality of hollow portions C1, C2 partitioned by the plurality of aggregates inside (see FIG. 8).

  The surface plates 21b and 21c are plate members having a rectangular shape in plan view, and are arranged at intervals in the door thickness direction. A plurality of aggregates described later are provided between the surface plates 21b and 21c.

Each of the aggregates 21f, 21h, 21i, 21j, 21k1, 21n, and 21p is a long member having a U-shaped cross section.
According to an example shown in FIG. 8, the aggregate 21 f is provided in the vicinity of the door bottom side end of the sliding door body 21 so as to extend in the vertical direction. The aggregate 21h is provided in the vicinity of the lower end side of the sliding door main body 21 in the lateral width direction. The aggregate 21i is provided across the vertical direction at a position away from the door end side end of the sliding door main body 21 by a predetermined amount toward the door bottom. The aggregate 21j is provided in the vertical direction at a position away from the door butt side end of the sliding door main body 21 by a predetermined amount toward the door tip side. The aggregate 21k1 is provided in the vicinity of the door end side end portion of the sliding door main body 21 so as to extend in the vertical direction. The aggregate 21p is provided across the width direction between the aggregate 21i and the aggregate 21j on the upper side of the sliding door main body 21. The aggregate 21n is provided across the width direction between the aggregate 21i and the aggregate 21j on the lower side of the sliding door main body 21.
The plurality of aggregates are fixed integrally by a fixing means such as welding or screwing.

  In particular, in FIG. 8, the hollow portion C1 near the right end includes two parallel aggregates 21j and 21f extending in the vertical direction, an aggregate 21h on the lower end side, and an upper end side flameproof auxiliary member 22 on the upper end described later. , Formed in a rectangular shape in front view surrounded by the front and rear surface plates 21b and 21c in the thickness direction, continuous in the vertical direction and the horizontal direction between the plurality of aggregates, and degassed by the upper end side flameproof auxiliary member 22 The space communicates with the hole 22d and is a space in which the peripheral wall is substantially sealed at portions other than the gas vent hole 22d. The hollow portion C1 is provided with a core material 21a (see FIG. 2) and the like.

  Similarly, in FIG. 8, the hollow portion C2 on the upper left side of the upper end includes two parallel aggregates 21i and 21j extending in the vertical direction, an aggregate 21p extending in the horizontal width direction near the upper end therebetween, and an upper end side protection. It is formed in a front view rectangular shape surrounded by the flame auxiliary member 22 and front and rear surface plates 21b and 21c in the thickness direction, is formed in a front view horizontally long rectangular shape, and is continuous in the vertical direction and the horizontal direction between the plurality of aggregates. In addition, it communicates with the gas vent hole 22d of the upper end side flameproof auxiliary member 22 and is a space in which the peripheral wall is substantially sealed at portions other than the gas vent hole 22d.

  In FIG. 8, a small window 27 is fixed inside the aggregates 21i, 21j, 21n, 21p configured in a rectangular shape on the left half side. The small window 27 is a rectangular plate-shaped member made of heat-resistant plate glass, and as shown in FIG. 6, the outer peripheral edge portion thereof is supported by a frame member 27a through packing or the like.

  Further, as shown in FIGS. 7 and 11, the sliding door body 21 is fitted with an aggregate 21k2 having a U-shaped cross section and a U-shaped cross section on the front end side of the aggregate 21k2 as shown in FIGS. A matching aggregate 21k1, two reinforcing plates 21k3 and 21k3 fixed so as to sandwich a rear portion of the aggregate 21k2, and two surface plates 21b and 21c bonded to the front and back surfaces of the aggregate 21k1 On the other hand, a reinforcing member 21m that fits in a U-shaped cross section from the outside is provided. The lock device 28 is assembled such that the reinforcing plates 21k3 and 21k3 and the surface plates 21b and 21c are interposed therebetween and inserted. The notch 21k11 on the front end side of the aggregate 21k1 is used when the lock device 28 is assembled.

The aggregate 21k2, the reinforcing plate 21k3, and the reinforcing member 21m having the above configuration prevent deformation of the sliding door main body 21 at the time of a fire, gas leakage caused by the deformation, and the like.
That is, if the structure does not have the aggregate 21k2, the surface plates 21b and 21c may be deformed to the inside in the door thickness direction (inside the notch 21k11) due to the high temperature at the time of fire. Such thermal deformation can be prevented by the aggregate 21k2 having a substantially U-shaped cross section.
Further, if the structure does not have the reinforcing material 21m, the surface plates 21b and 21c are deformed so that each of the surface plates 21b and 21c is peeled off and warped due to a high temperature at the time of fire, and the organic gas in the sliding door 20 from the gap. However, such heat deformation and gas leakage can be prevented by the reinforcing member 21m having a substantially U-shaped cross section.

  Similarly, the aggregate 21f and the reinforcing material 21g (refer to FIGS. 10, 11 and 14) near the door bottom end in the sliding door main body 21 and the aggregate 21d and the reinforcing material 21e near the upper end in the sliding door main body 21 are used. (See FIG. 13) also acts to prevent thermal deformation and leakage of organic gas or the like during a fire.

Further, the aggregate 21h on the lower end side of the sliding door main body 21 is formed in a U-shaped cross-section with the opening directed downward and continuous in the sliding door width direction (see FIG. 15), and both end faces in the door thickness direction. The surface plates 21b and 21c are fastened.
On the lower end sides of the surface plates 21b and 21c, bent portions 21b1 and 21c1 having a substantially U-shaped cross-section that are crushed and bent so as to wrap the lower end edge of the aggregate 21h are formed. 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.

The ends of the bent portions 21b1 and 21c1 in the sliding door width direction are positioned so as to substantially contact the opposing reinforcing member 21m (or 21g).
More specifically, 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 aggregate 21h and the reinforcing member. The clearance c between the materials 21m and the clearance c between the aggregate 21h and the reinforcing material 21g are all 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.

Moreover, 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 main body 21 over substantially the entire length in the sliding door width direction (see FIGS. 8 and 9). Both end portions protrude 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 22a that protrudes downward and constitutes the detour s1, and a protruding piece 22b that protrudes upward and prevents falling of a melt or the like during a fire (FIGS. 2 and 2). 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, and is continuous over substantially the entire length in the sliding door 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 sliding door lateral width direction.

  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 vent holes 22d communicate the hollow portions C1 and C2 in the sliding door 20 with the space above the sliding door 20, and discharge the gas in the sliding door 20 generated by the high temperature during a fire 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 the molten material due to a high temperature during a fire from falling on the upper surface of the upper end side flameproof auxiliary member 22 and further entering the vent hole 22d along the upper surface of the upper end side flameproof auxiliary member 22. Therefore, the core material 21a, the adhesive, etc. in the sliding door 20 are prevented from melting, volatilizing, or causing ignition due to the high heat of the melt.

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 sliding door in the width direction.

Further, the moving support portion 20a includes a support bracket 23 and a suspension wheel 24, and a plurality of (in the illustrated example) are spaced on the upper end surface of the sliding door main body 21 (specifically, the upper end side flameproof auxiliary member 22) in the sliding door width direction. According to two) supported.
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 bypass s2.

Next, the detours s1 and s2 on the upper end side of the sliding door 20 and the door bottom side 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.
This bypass s1 prevents the gas stored in the upper horizontal frame 11 (gas storage part) from the sliding door 20 through the gas vent hole 22d from leaking outside through the gap between the upper horizontal frame 11 and the sliding door 20. In order to keep it to a minimum, a substantially meandering path is formed in which the traveling direction of the fluid entering the gap from the inside of the upper lateral frame 11 (gas accommodating portion) is once reversed and then returned to the original direction. (See the two-dot chain line in FIG. 13).

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.
This bypass s2 is configured so that the gas accommodated in the upper horizontal frame 11 (gas accommodating portion) and the door pocket portion B from the sliding door 20 through the gas vent hole 22d is a gap between the central vertical frame 13 and the sliding door 20. In order to prevent leakage from the outside to the minimum, the substantially serpentine path that returns to the original direction after the direction of travel of the fluid entering the gap from the inside of the door pocket portion B (gas storage portion) is once reversed is reversed. (See the two-dot chain line in FIG. 14).

Next, characteristic actions and effects of the sliding door device 1 having the above configuration will be described in detail.
In the fully closed state of the sliding door 20, since a gap is ensured between the upper lateral frame 11 and the sliding door 20 at normal times, the opening / closing operability of the sliding door 20 can be favorably maintained by this gap ( (See FIG. 2).
In the unlikely event that the interior of the sliding door 20 becomes hot due to a fire or the like, organic gas may be generated in the hollow portions C1 and C2 in the sliding door 20 due to volatilization of the adhesive or the like. is there. Since the inside of the sliding door 20 has a structure in which the portions other than the gas vent hole 22d are substantially sealed as described above, the gas ascends in the hollow portions C1 and C2 and out of the gas vent hole 22d to the outside of the sliding door 20. It is discharged, accommodated in the upper horizontal frame 11, and further accommodated in the door pocket portion B communicating with the upper horizontal frame 11.
Therefore, it is possible to prevent the gas in the sliding door 20 from leaking to the indoor side or the like and adversely affecting a passerby or an external object.

Further, when the amount of gas generated is relatively large, the gas stored in the upper side frame 11 and the door pocket portion B is separated from the gap between the upper end side of the upper side frame 11 and the sliding door 20 or the upper side frame 11. Although there is a risk of leaking out of the sliding door device 1 through the gap between the door bottom side and the center side vertical frame 13, even in such a case, the detours s1, s2 in the gap (FIGS. 13 and The flow resistance according to 14) can prevent the amount of leakage to a minimum or delay the gas leakage speed.
The detours s1 and s2 also have an effect of making it difficult for the flame to pass through the gap when a flame is received on the upper end side or the door bottom side of the sliding door 20.

  Further, when the guide rail 11c, the suspension wheel 24, the support bracket 23, etc. in the upper lateral frame 11 are thermally melted due to high heat at the time of fire, the molten material is dropped by the receiving member 11g and the upper end side flameproof auxiliary member 22. It is possible to prevent the molten metal from falling on the floor surface and becoming a fire type. Further, since the melt can be prevented from entering the sliding door 20 by the bank 22e, the melting and volatilization in the sliding door 20 due to the penetration of the melt into the sliding door 20 are caused by these. Generation of gas can also be prevented.

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 has the sliding door 20 (opening / closing body) disposed within the thickness of the wall portion of the construction structure, whereas the sliding door device 2 (see FIG. 16) shown below is constructed. The sliding door 20 ′ (opening / closing body) is arranged so as to protrude in the thickness direction from the wall portion of the structure (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.

The upper horizontal frame of the frame 10 'has a basic structure substantially the same as that of the upper horizontal frame 11 in the longitudinal sectional structure (see FIG. 2), but the door pocket B (see FIG. 16), and a portion other than an opening (not shown) for inserting the upper end side of the sliding door 20 ′ is substantially sealed. In the upper horizontal frame, the above-described guide rail 11c, receiving portion 11g, movement support portion 20a and the like are included.
Further, 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), and is fully closed. A detour 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 opening / closing body 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 tip 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 (see FIG. 16).
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. An upper end side flameproof auxiliary member 22 is fixed to the upper end of the sliding door 20 ′ (not shown) in the same manner as 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 projecting piece 25a ′ that protrudes toward the center side vertical frame 13 ′ side from the sliding door body surface and also protrudes in the door tip direction (FIG. 16). reference). This sliding door side protrusion 25a 'constitutes a bypass s3.

  As shown in FIG. 16, the detour path s3 protrudes from the door butt side end portion of the sliding door 20 ′ to the central vertical frame 13 ′ side and extends in the door tip direction, and the sliding door side protruding piece portion 25a ′, A substantially serpentine passage configured by a frame-side protruding piece 13a 'or the like 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. 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, the gas generated in the sliding door 20 ′ due to high heat during a fire or the like is removed from the gas vent hole (not shown) on the upper end side of the sliding door 20 ′. ) Can escape into the upper horizontal frame (not shown). Further, when a flame is received on the upper end side or the door butt side of the sliding door 20 ′, this flame passes through the gap on the upper end side or the door butt side of the sliding door 20 ′. (Not shown) and the detour s3 on the door bottom side of the sliding door 20 ′.
In addition, when a member in the upper horizontal frame 11 (not shown) is thermally melted or the like, a fallen object caused by the heat melting is dropped into the floor surface or the sliding door 20 ′. It can prevent by an upper end side flame-proof auxiliary member and a bank part (not shown).

In the above aspect, 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, and is provided in a pair with the gas vent hole 22d interposed therebetween. Each bank portion 22e ′ is provided so as to protrude upward across the protruding piece portions 22b, 22b on both sides in the door thickness direction of the upper end side flameproof auxiliary member 22 ′.
According to this upper end side flameproof auxiliary member 22 ′, the melted material that has fallen from above the sliding door 20 ′ during a fire or the like can be prevented from entering the gas vent hole 22d by the projecting piece-like bank portion 22e ′. In addition, the manufacturability when mounting the bank portion 22e ′ is also good.

  Moreover, in the said aspect, although the gas vent hole 22d was made into the circular hole, as another example, the gas vent hole 22d can also be made into a rectangular hole, a slit-shaped hole, etc.

  Moreover, in the said aspect, although the vent hole 22d was provided in the upper end part of the sliding door 20, as another example, the vent hole 22d is provided in the front and back (front surface board 21b, 21c surface) of the sliding door 20 upper end side, It is also possible to cover the upper end side of the sliding door 20 including the gas vent hole 22d with the upper lateral frame 11.

  Moreover, in the said aspect, although the vent hole 22d was provided only in the upper end part of the sliding door 20, as another example, in addition to the said aspect, it is provided so that the vent hole 22d may be provided also in the door bottom side of the sliding door 20. Also good. According to this structure, since the direction in which the gas in the sliding door 20 is released becomes two directions, upper and door bottom directions, the gas can be efficiently released into the upper lateral frame 11 and the door pocket portion B. Furthermore, as another example, the gas vent hole 22d on the upper end side of the sliding door 20 can be omitted, and the gas vent hole 22d can be provided only on the door bottom side of the sliding door 20.

  Furthermore, as another example, the above-described vent hole is provided on the door-end side of the sliding door 20, and the gas inside the sliding door 20 is allowed to escape into the door-side vertical frame 12 when fully closed, It is also possible to adopt a mode in which the gas inside the sliding door 20 is released into the floor surface by being provided on the lower end side of the sliding door 20.

  Moreover, in the said aspect, although the gas discharged | emitted through the gas vent hole 22d from the inside of the sliding door 20 was accommodated in the upper side horizontal frame 11 and the door pocket part B, as said example, the said sliding door apparatus 1 is included. , 2 is formed in a hollow shape in the wall of the structure, and the inside of the wall is communicated with the upper horizontal frame 11 so that the gas in the sliding door 20 escapes into the upper horizontal frame 11 and the wall. It is also possible to do so.

  Moreover, in the said aspect, although the suspension type sliding door apparatus 1 and 2 were comprised, it replaced with the said guide rail 11c and the movement support part 20a as another example, and a roller and this roller between the sliding door 20 and a floor surface It is also possible to configure a sliding door device that is provided with a rail or the like for guiding the door and that opens and closes by rolling on the floor surface. Even in this case, by providing the above-described hollow upper horizontal frame 11 on the upper side of the sliding door 20, the gas can escape from the sliding door 20 into the upper horizontal frame 11 through the gas vent hole 22d. it can.

  In addition, in the said aspect, although the latching | locking part 11b21 is omitted, it is also possible to fix the some fire prevention board 11b2, 11b3, 11b4 by welding, respectively, from a viewpoint of making the work which lifts and supports a fire prevention board at the time of construction easy As shown in FIG. 3, it is better to provide a latching portion on the upper fireproof plate, and it is particularly preferable to provide a latching portion 11b21 on the top fireproof plate 11b2 (or 11b4). .

  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 two receiving members of the receiving member 11g and the upper end side flame-proof auxiliary member (receiving member) 22 were provided, as another example, if there is no trouble in use etc., one said receiving member Can be omitted.

  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 or the like may be used so as not to prevent the flow of gas generated in the hollow portions C1 and C2 to the door bottom side. It is preferable to incorporate 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.

1, 2: Sliding door device 10, 10 ': Frame 11: Upper horizontal frame (gas storage part)
20, 20 ': Sliding door 21a: Core material 21b, 21c: Surface plate 21d, 21f, 21h, 21i, 21j, 21k1, 21k2, 21n, 21p: Aggregate 21g, 21e, 21m: Reinforcement material 22d: Gas vent hole 22e , 22e ': Embankment A: Passage opening B: Door pocket (gas storage)
C1, C2: Hollow part

Claims (9)

In the sliding door device that opens and closes the sliding door in which the hollow portion is formed in the lateral width direction,
At least part of the peripheral end side of the sliding door is provided with a gas vent hole that communicates the hollow portion to the outside of the sliding door,
In a stationary part around the sliding door, a hollow gas storage portion that covers the gas vent hole without hindering the opening and closing operation of the sliding door is provided,
The sliding door device, wherein the gas in the hollow portion is accommodated in the gas accommodating portion through the gas vent hole.   The sliding door device according to claim 1, wherein the hollow portion is a space in which a peripheral wall is substantially sealed at a portion other than the gas vent hole. The vent hole is provided at the upper end of the sliding door,
A hollow upper horizontal frame into which an upper end portion of the sliding door including the gas vent hole is inserted is provided on the upper side of the sliding door, and the upper horizontal frame is used as the gas storage portion. The sliding door device according to 1 or 2.   4. The sliding door device according to claim 3, wherein a bank portion is provided in the vicinity of the degassing hole at the upper end portion of the sliding door so as to be a barrier for a passage from the upper end portion into the degassing hole. .   The sliding door device according to claim 4, wherein the bank portion is formed in a cylindrical shape covering the periphery of the gas vent hole.   6. An aggregate continuous in the vertical direction is provided in the hollow portion in the sliding door, and a space partitioned by the aggregate communicates with the gas vent passage. The sliding door device described.   The sliding door includes two surface plates arranged at an interval in the door thickness direction, and an aggregate sandwiched between lower ends of the two surface plates, and the aggregate is directed downward. The cross section is U-shaped and is formed to be continuous in the width direction of the sliding door, and a bent portion is formed on each lower end side of the surface plate so as to wrap the lower end edge of the aggregate. The sliding door device according to any one of claims 1 to 6.   An aggregate sandwiched between the two surface plates in the vicinity of at least one of the door end side end, the door bottom side end, and the upper end of the sliding door, and the aggregate and the second The sliding door device according to claim 7, further comprising a reinforcing member that fits in a U-shaped cross section from the outside to the surface plate of the sheet.   The reinforcing material is provided at a door end side end and a door bottom side end, respectively, and the gap between each of the reinforcing material and the end of the bending portion in the sliding door width direction is made substantially zero. Item 9. A sliding door device according to Item 8.

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