JP2017133234A - door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door capable of surely shielding a gap formed between a door body and a door frame without impairing appearance.SOLUTION: A door A includes: a door frame 10 constituted of a pair of vertical frames 11 and 12 which have recesses 15 formed at positions facing a peripheral edge on a surface 1a of a door body 1 and airtight materials 16 and thermosensitive foams 17 which are arranged in the recesses, and an upper frame 13 and a lower frame 14 which are arranged at vertical both ends of the pair of vertical frames; and the door body 1 which is constituted to be rotatable with respect to the door frame. The thermosensitive foam 17 is arranged on a surface side opened toward an outdoor side in the recesses 15, a surface side opened toward an indoor side or a surface side shielded by the airtight materials 16.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a door that can prevent passage of hot air or a flame when a fire occurs and that does not impair the appearance.

In the case of a door used for a building, a gap is formed around the entire circumference between the door body and the door frame. For this reason, when a fire breaks out, there is a possibility that hot air or a flame passes through this gap and spreads. In order to cope with this, there has been proposed a door configured to seal a gap formed between a door body and a door frame in the event of a fire to block hot air and flame.

  The fire door described in Patent Document 1 is a door frame made of an inorganic fireproof material, and a heat-sensitive foam material is embedded in each end face so as to be flush with the end face, and the entire surface is covered with an aluminum decorative material. The door is made up of. In this fire door, the heat-sensitive foaming material embedded in the end face is covered with the aluminum decorative material, so that it is not visually observed and the aesthetic appearance is not impaired.

  In addition, the fireproof and refurbished door using the existing door frame described in Patent Document 2 is provided with an airtight material installation frame around the circumference of the new door frame, and a receiving groove and a step receiving seat are formed in the airtight material installation frame. By arranging the indoor side panel so as to cover the in-plane portion of the receiving groove, the receiving groove and the step receiving seat are arranged so as to be exposed in series on the outer periphery of the indoor side finding surface of the new door. Then, a tape-like thermal expansion material is disposed at the bottom in the depth direction in the receiving groove, and an airtight material is attached to the indoor side, so that the thermal expansion material disposed in the step receiving seat is covered by the overhang base of the airtight material. I am doing so. For this reason, even if an airtight material melts and burns out in the event of a fire, the thermal expansion material can expand and seal between the existing door frame, and as a result, fire protection can be cut off.

  Moreover, the heat insulation fitting described in patent document 3 is provided in the opening part of a building, and the flame | frame comprised by arrange | positioning a heat insulation shape material between the outer frame of an outer side vertical frame, and the inner frame of an inner side vertical frame The door is housed in the body. In addition, a refractory expansion material is attached to the side surface of the frame body to reduce the gap between the heat insulating shape member and the door body by expanding due to temperature rise. For this reason, when temperature rises with the hot air at the time of a fire, a clearance gap can be sealed because a fireproof expansion material expand | swells rapidly.

Japanese Patent No. 3057399 Japanese Patent No. 5139671 JP 2014-214546 A

  In the fire door described in Patent Document 1, the heat-sensitive foam material disposed on the end face of the door is covered with an aluminum decorative material. For this reason, there is a possibility that the gap between the door and the door frame cannot be sealed even if the heat-sensitive foaming material is foamed unless the aluminum covering the end surface is dissolved in a fire. And when this clearance gap is not sealed, hot air and a flame will pass and the risk of fire spread will become large.

  Further, in the fireproof and refurbished door using the existing door frame described in Patent Document 2, since the airtight material is attached to the door, it is exposed from the door, and there is a possibility that the appearance is bad and the appearance is impaired. In particular, the airtight material exposed from the door may come into contact with any object when the door is opened or closed and may be torn or torn.

  Moreover, in the heat insulation fitting described in patent document 3, the fireproof expansion | swelling material arrange | positioned at a frame will be partly exposed and exposed to a human eye, and there exists a possibility of impairing aesthetics. In addition, depending on the method of fixing the refractory expansion material to the frame, there is a possibility that it may be peeled off over a long period of time, and there is concern about reliability.

  The objective of this invention is providing the door which can interrupt | block the clearance gap formed between the door main body and the door frame reliably, without impairing aesthetics.

  In order to solve the above-described problems, a door according to the present invention includes a pair of recesses formed at positions facing the peripheral edge on the surface of the door body, and an airtight material and a heat-sensitive foam disposed in the recesses. And a door frame configured to be rotatable with respect to the door frame, and a door main body configured to be rotatable with respect to the door frame. .

  In the door, the heat-sensitive foam is disposed on the surface side opened to the outside in the recess, the surface side opened toward the indoor side, or the surface side shielded by an airtight material. It is preferable.

  In the door according to the present invention, since the airtight material and the heat-sensitive foam are disposed in the concave portion formed at a position facing the peripheral edge of the door body of the pair of vertical frame, upper frame and lower frame constituting the door frame, the airtight material Although a part of is exposed from the recess, it is not exposed from the door body. That is, there is nothing exposed from the door body, and the aesthetic appearance is not impaired.

  In particular, the heat-sensitive foam placed in the recesses formed in the vertical frame, upper frame, and lower frame reliably conveys hot air during a fire. A gap formed between the frame and the frame can be sealed, and passage of hot air or flame can be prevented.

  Further, by arranging the heat-sensitive foam on the surface side opened to the outside in the recess or on the surface side opened to the indoor side, or on the surface side shielded by the airtight material, by the hot air directly acting on the heat-sensitive foam, Or it can be surely foamed by the hot air transmitted through the vertical frame, upper frame, and lower frame constituting the door frame.

It is a front view of a door. It is a cross-sectional view of a door. It is a longitudinal cross-sectional view of a door. It is an enlarged view explaining the relationship between a door frame and a door main body. It is a figure explaining the example of arrangement | positioning of the airtight material and heat-sensitive foam with respect to a recessed part.

  When the door according to the present invention is installed at the entrance of a building and a hot air generated due to a fire in the vicinity or for some reason acts on a gap formed between the door frame and the door body, the heat-sensitive foam Is configured such that hot air and flame can be prevented by expanding and expanding. In particular, by arranging an airtight material and a heat-sensitive foam in the recess formed in the door frame, the airtight material and the heat-sensitive foam are not exposed from the door body, and the aesthetic appearance is not impaired.

  Hereinafter, the structure of the door according to the present embodiment will be described with reference to FIGS. The door A shown in the drawing is configured as a front door for a house, and includes a door frame 10 and a door main body 1 configured to be rotatable with respect to the door frame 10.

  The door body 1 is attached to the door frame 10 via a hinge 2 so as to be rotatable. A door handle 3 and a lock 4 are provided at predetermined positions of the door body 1. Therefore, the door can be opened or closed by rotating the door body 1. When the door body 1 is closed, a gap 5 is formed between the door body 1 and the door frame 10.

  In the present invention, the structure of the door body 1 is not limited, and may be a wooden door body or a metal door body.

  The door frame 10 is arranged by connecting a pair of vertical frames 11 and 12 arranged opposite to each other, an upper frame 13 arranged by connecting upper ends of the vertical frames 11 and 12, and a lower end part thereof. A lower frame 14 is provided. The vertical frames 11 and 12 and the upper frame 13 are fixed to the wall of the building or the base of the wall (hereinafter referred to as “wall 20”) constituting the entrance portion, respectively, and the lower frame 14 is embedded in the dirt 21 of the entrance. Has been.

  A plurality of hinges 2 are attached to one vertical frame 11, and the door body 1 is rotatably attached via the hinges 2. The other vertical frame 12 is provided with a door handle 3 and a strike (not shown) of the lock 4.

  The vertical frames 11 and 12 and the upper frame 13 have the same cross-sectional shape, and the lower frame 14 has a shape and a size corresponding to the height of the entrance porch and the soil 21. These vertical frames 11, 12, the upper frame 13, and the lower frame 14 can roll-form or press-mold thin plates such as steel plates, stainless steel plates or aluminum plates. It is also possible to use a profile formed by extrusion molding of aluminum.

  The vertical frames 11, 12, the upper frame 13, and the lower frame 14 are formed with recesses 15 having shapes and dimensions common to the longitudinal direction. The recess 15 is for accommodating the airtight material 16 and the heat-sensitive foam 17. When the door frame 10 is configured by the vertical frames 11, 12, the upper frame 13, and the lower frame 14, It is formed at a position facing the peripheral edge on the surface 1a.

  Therefore, when the airtight material 16 and the heat-sensitive foam 17 are accommodated and disposed in the recess 15 and the door body 1 is closed, the airtight material 16 disposed in the recess 15 contacts the peripheral edge of the surface 1a on the indoor side of the door body 1. Then, by sealing the gap 5, it is possible to block the ventilation between the room and the outdoors. In particular, when hot air or a flame generated due to a fire or the like enters the gap 5, the heat-sensitive foam 17 disposed in the recess 15 is expanded and expanded, thereby sealing the gap 5. Therefore, hot air and flame do not pass through the gap 5, and it becomes possible to prevent the spread of fire.

  As described above, the recesses 15 formed in the vertical frames 11 and 12, the upper frame 13, and the lower frame 14 have the same shape and dimensions, and the same airtight material 16 and thermal foam 17 are disposed. Yes. For this reason, the vertical frame 11 will be specifically described with reference to FIG.

  As shown in the figure, the vertical frame 11 is refracted at a substantially right angle from the indoor side piece 11a, the outdoor side piece 11b having a smaller size than the indoor side piece, and from the indoor side piece 11a toward the outdoor side piece 11b. A bent piece 11c, a door facing piece 11d refracted from the outdoor piece 11b toward the indoor piece 11a, and a recess 15 formed by connecting the bent piece 11c and the door facing piece 11d. .

  When the airtight material 16 and the heat-sensitive foam 17 are disposed with respect to the recess 15, the relationship between the airtight material 16 and the heat-sensitive foam 17 is not particularly limited. In the present embodiment, as shown in FIG. 4, the heat-sensitive foam 17 is disposed on the side of the refraction piece 11 c in the recess 15, so that the heat-sensitive foam 17 is disposed on the surface side opened toward the room.

  Further, as shown in FIG. 5 (a), the heat-sensitive foam 17 may be disposed on the side facing the door facing piece 11d in the recess 15 so as to be disposed on the surface side opened to the outside. As shown in FIG. 2B, the heat-sensitive foam 17 may be disposed on the bottom portion of the recess 15 and the airtight material 16 may be disposed thereon.

  The width dimension and the depth dimension of the recess 15 are appropriately set corresponding to the dimensions of the airtight material 16 and the thermal foam 17 to be arranged. That is, when the airtight material 16 and the heat-sensitive foam 17 are accommodated in the recess 15, the contact portion of the airtight material 16 protrudes from the recess 15 and can contact the door body 1 with sufficient pressing force. Set to depth.

  When the atmosphere rises to a preset temperature due to the action of hot air or flame, the heat-sensitive foam 17 disposed in the recess 15 foams in response to this temperature. For this reason, what is necessary is just to have the said function as a heat-sensitive foam, and it does not specifically limit a material.

  In particular, when the vertical frames 11, 12, the upper frame 13, and the lower frame 14 constituting the door frame 10 are made of metal, when the temperature on the outdoor side or the indoor side rises, the heat-sensitive foam 17 is formed by heat conduction of the metal. It becomes possible to convey heat. For this reason, it is possible to realize reliable foaming regardless of the arrangement position in the recess 15.

  In the door A configured as described above, the airtight material 16 and the heat-sensitive foam 17 are accommodated and disposed in the recesses 15 formed in the vertical frames 11, 12, the upper frame 13, and the lower frame 14. There is little possibility of being visually recognized. For this reason, the beauty as the door A is not spoiled.

  Further, since the heat-sensitive foam 17 is disposed together with the airtight material 16 with respect to the concave portion 15, there is no possibility of detachment from the concave portion 15.

  The door according to the present invention can be used as a front door or an indoor room door.

A Door 1 Door body 1a Indoor side surface 2 Hinge 3 Door handle 4 Lock 5 Clearance 10 Door frame 11, 12 Vertical frame 11a Indoor side piece 11b Outdoor side piece 11c Refraction piece 11d Door facing piece 13 Upper frame 14 Lower frame 15 Recess 16 Airtight material 17 Thermal foam 20 Wall 21 Dirt

Claims (2)

A pair of vertical frames having a recess formed at a position facing the peripheral edge on the surface of the door body, an airtight material and a heat-sensitive foam disposed in the recess, and upper and lower ends of the pair of vertical frames A door frame composed of an upper frame and a lower frame arranged;
A door body configured to be rotatable with respect to the door frame;
A door characterized by having.   The heat-sensitive foam is disposed on a surface side opened to the outside in the recess, a surface side opened toward the indoor side, or a surface side shielded by an airtight material. Item 1. The door according to item 1.

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