JP2005105705A - Screening structure of smoke-insulating and fireproof folding door with wicket door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a screening structure of a smoke-insulating and fireproof folding door with a wicket door, which can effectively secure a screening function even if the wicket door is concurrently provided, by improving a mounting structure for an airtight material and a screening material, required for a smoke-insulating function. <P>SOLUTION: So as to close a gap which is formed between a floor surface C and an opening frame 5 of a building opening 4 in the closing of the folding door 1, the screening materials 8, which are composed of a plate-like elastic rubber, are each provided in such a manner as to be elongated to top and bottom rails 6a and 7a of first and second doors 2 and 3; the airtight material 10, which closely adheres to a jamb 5a of the corresponding opening frame 5, is provided in such a manner as to be elongated to a door end-side stile 9 of the second door 3; and the screening material 8, which is brought into close contact with the floor surface C, is provided in such a manner as to be elongated to a bottom rail 6a in the state of being deviated to an outdoor side A, in the first door 2, and provided in such a manner as to be elongated to a bottom rail 7a in the state of being deviated to an indoor side B, in the second door 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a smoke-proof fire-folding door that shields a building opening, and more particularly, to a shielding structure in a smoke-proof fire-folding door with a hidden door that prevents outflow of smoke generated by a fire or the like.

  As shown in FIG. 6, the conventional smoke-proof and fire-folding door is composed of a first door 2 and a second door 3 made of double-sided flash doors, and left and right vertical frames 5 a and 5 b of an opening frame 5 formed in a building opening 4. In addition, a hollow airtight material 10 is loaded on the contact surface of the upper frame (not shown) to block the smoke at the time of closing, and the lower lids 6, 7 of the first door 2 and the second door 3 are used. Furthermore, in order to seal the gap formed between the floor of the building opening 4 when the folding door is closed, a shielding material 8 made of a plate-like elastic rubber, soft vinyl or the like is respectively extended to smoke- and fire-proof folding door 1. Is configured.

However, in the above conventional configuration, as shown by the dotted line in the figure, the first door 2 and the second door 3 are always folded except in an emergency such as a fire, and the left and right vertical frames of the opened opening frame 5 Since the hollow airtight material 10 loaded in 5a, 5b and the upper frame 5c and the shielding material mounting portion X extending to the lower arm 6 of the first door 2 are always exposed to the outside, it is not preferable in terms of design. In addition, it was easy to induce external contamination and damage due to collision.

Therefore, instead of the configuration in which the hollow airtight material 10 is loaded on the contact surfaces of the left and right vertical frames 5a and 5b and the upper frame 5c of the opening frame 5 described above, each door 2, 3 to the corresponding opening frame 5 is provided. In order to load the airtight material 10 on the contact surface side and to improve the design, it is possible to extend the shielding material 8 on the opposite side surfaces of the doors 2 and 3 shown in FIG. When this structure is adopted, when a submerged door 13 without a lower arm is provided along with the second door 3, in order to avoid an obstacle to the opening and closing of the submerged door 13, it is inevitably between the lower edge of the door 3 provided with this submerged door. As a result, a joint portion (the thick line arrow portion shown in FIG. 7 and the gap t in FIG. 7) that cannot be equipped with the shielding material 8 is generated, leaving a room for improvement in which the smoke shielding function, which is the original purpose, is reduced. It was.

On the other hand, although a fireproof sliding door provided with a sliding door as described above has been proposed, it has the disadvantage that the installation area is larger than the configuration of a folding door.
JP 61-53981 A JP-A-61-220664

  The present invention was devised in the course of research and development for pursuing functional improvement as a smoke-proof fire-proof folding door in view of the above-mentioned actual situation, and the object of the invention is to prevent smoke The objective is to provide a shielding structure for smoke- and fire-proof folding doors with a sliding door that can effectively secure the shielding function even when a sliding door is installed by improving the mounting structure of the airtight material and shielding material essential for the function. Is.

  In order to solve the above-described problems, the technical means employed by the present invention includes a first door that can be rotated to the outside of the room with a suspension fulcrum as a rotation fulcrum, and a second door that is provided with a sliding door. With a sliding door that is installed at the opening of the building with the door end side of the door as a pivot, and the first and second doors are turned in the closing direction by the detection of a fire or the like to shield the opening of the building In smoke- and fire-proof folding doors, when the folding door is closed, a shielding material made of a plate-like soft material is placed on the top of each door to seal the gap formed between the opening frame of the building opening and the floor surface. Each of the extended doors has a hermetic material in close contact with the vertical frame of the corresponding opening frame, while a shielding material in close contact with the floor surface is provided on the lower arm of each door. When extending, the first door reaches the prospective surface on the door-end side through the door surface displaced from the prospective surface on the suspension side to the outdoor side. Shielding material is extended in an approximately U-shape in cross section in the area between them, and in the second door, the shielding material is extended in the area between the door side shifted from the suspension side to the indoor side and the door end side. And the shielding material was continuously extended over the full width of the folding door from the suspension base side of the 1st door to the door end side of the 2nd door.

  Therefore, according to the present invention, it is possible to effectively secure the shielding function even when the sliding door is installed by improving the mounting structure of the hermetic material and shielding material essential for the smoke shielding function while considering the design.

  When extending the shielding material that is in close contact with the floor surface to the lower arm of each door, in the first door, from the prospective surface on the hanging side to the prospective surface on the door end side through the door surface displaced to the outdoor side The second door is provided with a shielding material extending from the suspension base side to the door end side through the door surface displaced from the suspension base side to the indoor side, and the first door suspension base. It is set as the structure extended continuously without interrupting a shielding material over the full width of the folding door from the side to the door end side of a 2nd door.

The configuration of the present invention will be described in detail with reference to the accompanying drawings.
1 to 4, reference numeral 1 denotes a smoke-proof / fire-folding door adopting the shielding structure of the present invention, and the smoke-proof / fire-folding door 1 can be turned to the outdoor side A with the suspension side 2 a as a pivot. A first door 2 and a second door 3 that can be rotated with the door side 2b of the first door 2 as a rotation fulcrum are installed in the opening frame 5 of the building opening 4, and the first door is detected by detecting a fire or the like. The door 2 and the second door 3 are rotated in the closing direction so as to shield the building opening 4 from the outdoor side A and the indoor side B.

A clearance formed between the opening frame 5 of the building opening 4 and the floor surface C when the smoke- and fire-proof folding doors 1 are closed is formed in the lower fences 6a and 7a and the upper fences 6b and 7b. In order to seal off, shielding materials 8 and 8 (black portions in the figure) made of plate-like elastic rubber, vinyl chloride, etc. are respectively extended on the panel surface via mounting plates 8a, 8a. A hollow airtight material 10 that is in close contact with the vertical frame 5a of the corresponding opening frame 5 is extended to the vertical rod 9 on the door end side 3b of the door 3, and the shielding material 8 that is in close contact with the floor surface C is extended. , 8 is extended to the lower arm 6a of the first door 2 through the door surface displaced from the expected surface of the suspension side 2a to the outdoor side A to the expected surface of the door side 2b, In the 2nd door 3, it extends in the lower collar 7a of the site | part between the door end side 3b through the door surface shifted from the suspension side 3a to the room inner side B, It is configured to 1 door 2 of Tsumoto side 2a from the second door 3 in the door leading end side leading to 3b folding door 1 over the entire width shielding material 8, 8 ... are extended continuously.

As described above, in the first door 2 in which the shielding material 8 wraps around in the prospective direction on the hanging side 2a and the door end side 2b, the vertical direction of the hanging side 2a with respect to the extended portion of the shielding material 8 As shown in FIGS. 5 (a) and 5 (b), a shielding bracket 12 having a shielding piece 11 made of a plate-like elastic rubber extending at one end edge is detachably attached to the frame 5b in the opening height direction. When the first door 2 is closed, smoke shielding is performed on the suspension side 2a by the cooperation of the shielding member 8 that has turned around in the expected direction on the suspension side 2a and the shielding piece 11. By adopting this configuration, the shielding bracket 12 can be replaced and attached without the need to remove the first door 2, so that maintainability can be improved and the smoke shielding function can be maintained. In addition, since the shielding material 8 has also turned around in the prospective direction on the door end side 2b of the first door 2, a joint portion (thick line arrow portion in the figure) that cannot be equipped with the shielding material 8 as in the past, that is, the second Even if there is an engagement portion Y with the hanging side 3a of the door 3, the shielding function can be maintained.

On the other hand, the second door 3 is provided with a sliding door 13. Similarly to the second door 3, the shielding material 8 which is displaced to the indoor side B and is in close contact with the floor C is also attached to the lower edge of the sliding door 13. While extending through the mounting plate 8 a and in the closed state of the sliding door 13, the airtight materials 10, 10 loaded on the three sides of the opening frame 14 formed in the second door 3 and the indoor side surface of the sliding door 13 are in close contact with each other. As shown in FIG. 2, when the folding door 1 is closed, as shown in FIG. 2, the full width of the folding door 1, that is, from the prospective surface of the suspension door side 2 a of the first door 2. The shielding material 8 extended to the lower arm 6a of the part between the door surface shifted to the outdoor side A and the prospective surface of the door side 2b, and the interior side B from the suspension side 3a of the second door 3 With the shielding material 8 extended to the lower collar 7a of the part between the door surface 3b through the door surface displaced to The first door 2 of Tsumoto side 2a from the second door 3 in the door leading end side leading to 3b folding door 1 over the entire width shielding material 8, 8 ... are extended continuously.
Note that the suspension side 2a of the first door 2 and the suspension side 3a of the second door 3 are suspended and supported via automatic closing hinges 15 and 16, respectively, and smoke- and fire-proof folding doors that are normally folded. 1 is configured such that each door 2 and 3 closes the building opening 4 via the automatic closing hinges 15 and 16 when the door is closed by releasing a lock release mechanism (not shown) upon detection of a fire or the like. Yes.

Since the present invention is configured as described above, when the smoke-proof and fire-folding door 1 is opened, as shown by the dotted line in FIG. 2, the smoke- and fire-proof folding door 1 is folded. 8 and 8 are located on the rear surface side of the doors 2 and 3, and on the opened opening frame 5 side, the left and right vertical frames 5a and 5b and the upper frame 5c of the opened opening frame 5 are hollow as in the prior art. Since the airtight material 10 is not present, the designability is not impaired, and in addition, foreign matter from the outside, damage to the airtight material 10 due to contact, and the like are not induced.

On the other hand, when the smoke-proof and fire-folding door 1 is closed, the shielding material 8 that is offset from the shielding piece 11 of the vertical frame 5b of the opening frame 5 to the outdoor side A of the first door 2 and the second door 3 are suspended. The shielding material 8 and the airtight materials 10 and 10 are continuously provided without being interrupted in a cross-sectional view by the shielding material 8 that is deviated and extended to the indoor side B from the original side 3a through the diving door 13 to the door end side 3b. Since 'is extended, the smoke shielding function in the closed state of the smoke shielding and fire folding door 1 can be sufficiently exhibited.

  Not only smoke- and fire-proof folding doors, but can be adopted as a waterproof function for bathroom folding doors.

It is a whole front view of the smoke-proof fire-proof folding door which employ | adopts the shielding structure of this invention. It is aa sectional drawing. It is bb sectional drawing. It is cc sectional drawing. (A) is a principal part expanded sectional view which shows the attachment structure of the bracket for shielding in the suspension side. (B) is a principal part expanded sectional view which shows the state which removed the bracket for shielding same as the above. It is aa sectional drawing of the conventional smoke-proof fireproof folding door. It is a principal part enlarged view which shows the joint part (gap t) which cannot equip the shielding material 8 of a smoke-proof fireproof folding door.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Smoke prevention fire folding door 2 1st door 2a Hanging origin side 2b Door tip side 3 2nd door 4 Building opening part 5 Opening frame 5a Vertical frame 8 Shielding material 10 Airtight material A Outdoor side B Indoor side C Floor surface

Claims (1)

The first door, which can be turned to the outside of the room with the suspension side as a pivot point, and the second door with a submerged door are installed at the opening of the building with the door side of the first door as a pivot point. In the smoke- and fire-proof folding door with a sliding door configured to rotate the first door and the second door in the closing direction by the detection of the etc. to shield the building opening, the opening of the building opening is closed when the folding door is closed. In order to seal the gap formed between the frame and the floor surface, a shielding material made of a plate-like soft material is extended to the upper arm of each door, and the door side of the second door, While extending the airtight material that is in close contact with the vertical frame of the corresponding opening frame, and extending the shielding material that is in close contact with the floor surface to the lower arm of each door, in the first door, from the prospective surface on the suspension side In the second door, a shielding material is extended in a cross-sectional view in a substantially U-shape in a region between the door surface displaced to the outdoor side and the prospective surface on the door end side. Extending the shielding material to the part from the original side to the door side via the door surface displaced from the indoor side to the full width of the folding door from the hanging side of the first door to the door side of the second door A shielding structure in a smoke- and fire-proof folding door with a hidden door, characterized in that a shielding material is continuously extended across.

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