JP6214168B2 - Opening device - Google Patents

Description

  The present invention includes an opening having a frame provided at an opening of a building, a shoji that opens and closes the opening, and a tight material that is provided on the frame and closes a gap between the shoji and the frame when the shoji closes the opening. Part related to the device.

  Generally, for example, a door device (opening device) for opening and closing the entrance and the entrance at the entrance of a detached house, the entrance of each room of an apartment house, or the entrance of each room provided in a building. ), And the entrance and the entrance are closed with a door device so that the inside of the building and the room can be separated from the outside.

  Such door devices provided at entrances and entrances include a frame provided at the opening of the entrance and entrance, a door body (shoji) that opens and closes the opening, and when the door closes the opening. And a tight material for closing a gap between the door body and the frame.

  As such a tight material, conventionally, for example, as disclosed in Patent Document 1, an attachment portion for attaching the tight material to the frame, and provided in the attachment portion, abuts on the corner of the door body. Some have a fin piece that closes the gap, and the attachment portion is made of hard resin, and the fin piece is made of soft resin.

Japanese Patent Laid-Open No. 10-37629

  Since such a tight material is composed of a combination of a hard resin and a soft resin, the tight material becomes hot due to the flame of the frame or door body when a fire breaks out. When the temperature exceeds the melting point, the tight material melts and disappears from the frame, so even if the door body is closed, the gap between the frame and the door body is not closed, and the door device is An air flow path is formed between the separated room and the outdoor, and the flammable gas generated outside the room flows into the room or flows out of the fire source room to the outside. There were problems, such as causing tote ware.

  The present invention has been made in view of such a situation, and an object of the present invention is to provide an opening device capable of closing a gap between a frame and a door body (shoji) and preventing a combustible gas from flowing when a fire occurs. .

The invention according to claim 1 of the present application provides a frame provided in an opening of a building, a shoji that opens and closes the opening, and a frame or a shoji. When the shoji closes the opening, the gap between the shoji and the frame is provided. The tight material is made of a heat-expandable refractory part made of a heat-expandable refractory material and a soft resin material, and a fin piece that comes into contact with the shoji or the frame when the shoji closes the opening. The heat-expandable refractory part is opposed to the space between the inner peripheral surface of the frame and the outer peripheral surface of the shoji when the shoji closes the opening, and is not covered with the fin piece that contacts the shoji or the frame. It has an exposed surface between the frame shodles exposed in the space between the inner peripheral surface of the door and the outer peripheral surface of the shoji , and in the event of a fire, the thermally expandable fireproof part expands to close the gap between the frame and the shoji And
The invention according to claim 2 of the present application is attached to the frame provided in the opening of the building, the shoji that opens and closes the opening, and the tight material attaching portion provided in the frame . When the shoji closes the opening A tight material that closes the gap between the shoji and the frame.The tight material is made of a heat-expandable fire-resistant part made of a heat-expandable fire-resistant material and a soft resin material. When the shoji closes the opening, it touches the shoji. The heat-expandable refractory part has an indoor exposed surface exposed to the indoor space on the inner peripheral side of the tight material mounting part, and the heat-expandable refractory part expands in the event of a fire. It is characterized by closing the gap between the frame and the shoji.
The invention according to claim 3 of the present application is provided with a frame provided in the opening of the building, a shoji that opens and closes the opening, and the frame, and when the shoji closes the opening, the gap between the shoji and the frame is closed. The frame is composed of a resin part connecting the exterior and interior of the frame, and the tight material is composed of a heat-expandable fire-resistant part made of a heat-expandable fire-resistant material and a soft resin material. It has a fin piece that comes into contact with the shoji when the opening is closed, and the heat-expandable fireproof part has a closing part that faces the resin part of the frame, and in the event of a fire, the heat-expandable fireproof part expands It is characterized by closing the gap between the frame and the shoji.

As described above, according to the present invention, the thermally expandable refractory part that is not covered with the fin pieces expands rapidly due to the heat of the fire, and closes the gap between the frame and the shoji, so that an early stage can occur when a fire occurs. In addition, it is possible to prevent the flow of combustible gas.

FIG. 1 is a schematic configuration diagram illustrating an opening (a doorway or the like) of a building including an opening device (door device) according to an embodiment of the present invention. FIG. 2 is a schematic view taken along the line C-C ′ of FIG. 1. FIG. 3 is a schematic cross-sectional view for explaining the configuration of the tight material 6. FIG. 4 is a schematic cross-sectional view showing a state of the tight material 6 before closing the shoji DR. FIG. 5 is a schematic sectional view showing a state of the tight material 6 when the shoji is closed. FIG. 6 is a schematic cross-sectional view showing a configuration of a tight material 6 ′ provided on the eaves frame 4 according to another embodiment of the present invention. FIG. 7 is a schematic cross-sectional view showing a state of the tight material 6 ′ before closing the shoji DR. FIG. 8 is a schematic cross-sectional view showing the state of the tight material 6 ′ when the shoji is closed.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
〔Example〕
FIG. 1 is a schematic configuration diagram illustrating an opening (such as a doorway) of a building including an opening device (door device) according to an embodiment of the present invention, and FIG. 2 is a CC diagram of FIG. It is a cross-sectional schematic view. 1 and 2, the elements of the opening device not directly related to the present invention (for example, door opening / closing mechanisms such as door handles and door closers, key mechanisms, etc.) are not shown.
Further, in FIG. 1, the rear side of the figure is the indoor / outdoor outdoor side partitioned by the opening device, the front side of the drawing is the indoor side, and FIG. 1 is a front view of the opening device viewed from the indoor side Represents.

  This opening device includes a frame FR that surrounds the opening MM and a shoji (door body) DR that opens and closes the frame FR. The frame FR is configured by a four-round framework of the upper frame 1, the lower frame 2, and the left and right collar frames 3, 4. Each of the upper frame 1, the lower frame 2, and the eaves frames 3 and 4 is divided into an indoor side and an outdoor side part, and the indoor side part and the outdoor side part are divided into resin parts having high heat insulation properties. It has a heat insulating sash structure connected (for example, made of urethane foam or the like).

  For example, as shown in FIG. 2, the frame frames 3 and 4 include outdoor units 3 a and 4 a, indoor units 3 b and 4 b, an outdoor unit 3 a of the frame frame 3, an indoor unit 3 b, and an outdoor unit 4 a of the frame frame 4. It is comprised from the urethane foam casting part 3c, 4c which each connects the indoor part 4b. Here, the outdoor portion 3a and the indoor portion 3b of the frame 3 and the outdoor portion 4a and the indoor portion 4b of the frame 4 are not in direct contact with each other, and are connected via urethane foam casting portions 3c and 4c, respectively. Therefore, the outdoor part 3a and the indoor part 3b of the frame 3 and the outdoor part 4a and the indoor part 4b of the frame 4 are in a state in which heat is difficult to be transmitted (insulated sash structure).

  In addition, in the frame 3, the outdoor part 3a and the indoor part 3b define the outer shape of the space in which the urethane foam forming the urethane foam casting part 3c is filled and solidified, and the urethane foam casting part after the urethane foam is solidified. There are a crimping part 3aa and a crimping part 3ba for crimping 3c, respectively. The space formed by the crimped portion 3aa and the crimped portion ab has a gap G3a that opens toward the wall surface MMa of the opening MM and a gap G3b that opens toward the shoji DR, and the gap G3a , G3b, the outdoor part 3a and the indoor part 3b of the frame 3 are separated.

  Similarly, in the frame 4, the outdoor part 4 a and the indoor part 4 b define the outer shape of the space in which the urethane foam forming the urethane foam casting part 4 c is filled and solidified, and the urethane foam casting after the urethane foam is solidified. A crimping part 4aa and a crimping part 4ba for crimping the part 4c are provided. The space formed by the crimped portion 4aa and the crimped portion 4ab has a gap G4a that opens toward the wall surface MMa of the opening MM and a gap G4b that opens toward the shoji DR, and the gap G4a , G4b, the outdoor part 4a and the indoor part 4b of the frame 4 are separated.

  Further, the indoor portion 3b of the heel frame 3 is provided with a tight material attaching portion 3bb for attaching the tight material 5 that closes the gap between the heel frame 3 and the shoji DR. A tight material attaching portion 4bb for attaching a tight material 6 that closes the gap between the frame 4 and the shoji DR is provided. These tight material attaching portions 3bb and 4bb each have an insertion portion into which a collar portion (described later) provided on the tight materials 5 and 6 is inserted, and by inserting the collar portion of each of the tight materials 5 and 6 into the insertion portion. The tight materials 5 and 6 are attached to the tight material attaching portions 3bb and 4bb.

  In addition, in the opening part of the gap G3b formed by the outdoor part 3a and the indoor part 3b of the frame 3 and the opening part of the gap G4b formed by the outdoor part 4a and the indoor part 4b of the frame frame 4, As described later, the closing portions (described later) of the tight materials 5 and 6 are opposed to each other, and when the tight materials 5 and 6 are expanded as described later, the closing portions close their openings. It has become. Therefore, it is preferable to set the attachment positions of the tight materials 5 and 6 so that the closing portions of the tight materials 5 and 6 can close the openings of the gaps G3b and G4b as the tight materials 5 and 6 expand.

  The shoji DR includes a shoji portion 15 formed by attaching a frame formed by combining the ribs 11 and 12 and a lateral bone (not shown), a panel 13 facing the outside, and a panel 14 facing the room, and the panel 13. , 14 and edge members 17, 18 for covering the ends of the ribs 11, 12 that have been wrapped around. A hinge 16 for rotatably attaching the shoji part 15 to the collar frame 3 of the frame FR is screwed (not shown) to the rib 11 having sufficient strength. A hole (not shown) for allowing the screw for screwing to pass therethrough is formed. In addition, corner portions 17a and 18a for contacting the fin pieces (described later) of the tight materials 5 and 6 and closing the gap between the frame FR and the shoji DR at the indoor ends of the edge materials 17 and 18, respectively. It is provided. Here, the hinge 16 is one of the components of the door opening / closing mechanism.

FIG. 3 is a schematic cross-sectional view for explaining the configuration of the tight material 6. Since the tight material 5 has a structure in which the direction is reversed in the left-right direction with respect to the tight material 6, description thereof is omitted, but when the detailed description of the tight material 5 is made, it corresponds to a portion corresponding to the tight material 6. The part is described with reference to the reference numeral.
In FIG. 3, the tight material 6 is composed of two parts, a hard part 6a mainly formed of a hard resin and a soft part 6b formed of a soft resin such as PVC sponge.

  The hard part 6a has a base part 6aa having a flange part 6c provided on the lower surface, a closing part 6ab facing the opening part of the gap G4b, and a diagonally upward direction connecting the right end of the base part 6aa and the lower end part of the closing part 6ab. An inclined portion 6ac extending upward, an inclined portion 6ad extending obliquely downward from the upper end of the closing portion 6ac toward the base portion 6aa, and a rising portion 6ae rising from the base portion 6aa and connected to the lower end portion of the inclined portion 6ad. And have. A hollow portion 6af surrounded by the base portion 6aa, the closing portion 6ab, the inclined portions 6ac and 6ad, and the rising portion 6ae is formed.

Further, the exposed surface corresponding to the thickness of the left end of the base portion 6aa forms a room-side exposed surface 6ah facing the room, and the upper surface of the inclined portion 6ad is in a space between the inner peripheral surface of the frame and the outer peripheral surface of the shoji. An exposed surface 6ai between frame borders that is not covered by the fin pieces that are opposed to each other and that are in contact with the shoji is exposed in a space between the inner peripheral surface of the frame and the outer peripheral surface of the shoji. A portion where the rising portion 6ae and the base portion 6aa are connected forms a step portion 6ag that connects the indoor-side exposed surface 6ah and the exposed surface 6ai between the frame shojis. Here, the indoor side exposed surface 6ah is located at least a rising dimension of the rising portion 6ae in the direction G (expected direction) in which the shoji is closed from the frame shoji exposed surface 6ai.

  Here, the base portion 6aa, the closing portion 6ab, the inclined portions 6ac and 6ad, and the rising portion 6ae of the hard portion 6a are formed of a hard resin (for example, Fiblock (registered trademark)) of a thermally expandable refractory material. . The hard resin of this heat-expandable refractory material has a volume that expands several times to several tens of times when heated above a certain temperature, and also has fire resistance and does not burn easily. (Has flame retardancy).

  Further, the tight material 6 protects the hard resin of the heat-expandable refractory material of the base portion 6aa, the closing portion 6ab, the inclined portions 6ac and 6ad, and the rising portion 6ae of the hard portion 6a. A covering portion 6d that is covered with a film of a conductive resin (for example, soft PVC).

  Further, the flange portion 6c provided on the lower surface of the base portion 6aa is formed of a soft resin similar to the covering portion 6d so that it can be easily attached to the tight material attachment portion 4bb provided in the indoor portion 4b of the flange frame 4. . In this embodiment, the same material is used for the flange portion 6c and the covering portion 6d, so that the flange portion 6c and the covering portion 6d are integrally formed.

The soft portion 6b formed of a soft resin such as PVC sponge has a thin plate-like fin piece 6ba provided at a position away from the frame- slider exposed surface 6ai in the side direction of the shoji (expected direction), and the fin piece 6ba at this position. The rising portion 6bb that rises from the upper surface of the base portion 6aa of the hard portion 6a and supports the end portion of the fin piece 6ba is connected to the substantially central portion of the rising portion 6bb and the upper end portion of the step portion 6ag. Supporting part 6bc. The rising portion 6bb and the support portion 6bc form a hollow portion 6bd together with the step portion 6ag of the hard portion 6a.

  The rising portion 6bb and the support portion 6bc surrounding the hollow portion 6bd are formed of a soft resin, and form a cushion portion that is easily deformed when pushed in with a human finger or the like. That is, in this embodiment, the rising portion 6bb, the support portion 6bc, and the hollow portion 6bd constitute a cushion portion provided on the step portion 6ag of the hard portion 6a.

  Further, a recess 6be formed by cutting the thickness direction is provided at the base of the fin piece 6ba connected to the rising portion 6bb. In this way, the fin piece 6ba is thinner at the portion of the recess 6be, and the portion of the recess 6be is weaker than the other portions. Therefore, when closing the shoji DR, the corner 18a of the edge member 18 has the fin piece 6ba. When the force is applied in the direction G in which the shoji is closed, the fin piece 6ba is bent at the indentation 6be, and the fin piece 6ba can be easily used with the indentation 6be as a fulcrum as the corner 18a of the edge member 18 moves. Bends and deforms.

  Here, the deformation of the fin piece 6ba is caused by the fact that the strength of the recess 6be is smaller than that of the other portions. Therefore, when the force by the corner 18a of the edge member 18 acts on the fin piece 6ba, the recess 6be is always in the portion of the recess 6be. Therefore, the deformation of the fin piece 6ba becomes constant, and the function of the tight material 6 that closes the gap between the shoji DR and the frame FR is stably exhibited.

By the way, in the tight material 6 of the present embodiment, the angle of the step portion 6ag that connects the indoor side exposed surface 6ah and the exposed surface 6ai between the frame shojis is set at a substantially right angle. You may form in a substantially concave shape.

FIG. 4 is a schematic cross-sectional view showing a state of the tight material 6 before closing the shoji DR, and FIG. 5 is a schematic cross-sectional view showing a state of the tight material 6 when the shoji is closed.
As shown in FIG. 4, before closing the shoji DR, external force is not applied to the fin piece 6ba of the tight material 6, so that the fin piece 6ba is in the free state. It is away from the exposed surface 6ai between frame shoji . Moreover, the opening part of the clearance gap G4b of the collar frame 4 is closed by the closing part 6ab.

  As shown in FIG. 5, when the shoji DR is closed, as described above, the corner portion 18a of the edge material 18 of the shoji DR pushes the fin piece 6ba of the tight material 6 to deform the fin piece 6ba. The tip portion is held in a state where it abuts against the inclined portion 6ad of the hard portion 6a of the tight material 6.

On the other hand, on the side opposite to the edge material 18 of the shoji DR, as shown in FIG. 2, the corner portion 17a of the edge material 17 pushes the fin piece 5ba of the tight material 5, so that the fin piece 5ba is deformed, and the tip portion thereof. Is held in a state of abutting against the inclined portion 5ad of the hard portion 5a of the tight material 5.
Therefore, the gap between the shoji DR and the frame FR is closed by the tight materials 5 and 6, the air flow path between the room partitioned by the shoji DR and the outdoor is blocked, and airtightness is maintained.

  And when a fire broke out outdoors with the shoji DR closed, the frame FR and shoji DR were heated by the heat of the fire, and were further transmitted to the outsides 3a and 4a of the eaves frames 3 and 4. The urethane foams 3c and 4c are heated by heat, and the tight materials 5 and 6 are heated by the heat transmitted through the edge materials 17 and 18 of the shoji DR, so that the urethane foams 3c and 4c and the tight materials 5 and 6 The temperature rises.

  When the foamed urethane 3c, 4c is heated to a temperature higher than the melting point of the foamed urethane 3c, 4c, the foamed urethane 3c, 4c is melted and flows out through the gaps G3a, G4a. At this time, if the gaps G3b and G4b are closed by the closing portions 5ab and 6ab of the tight members 5 and 6, respectively, the melted urethane foams 3c and 4c do not flow out of the gaps G3b and G4b.

  On the other hand, when the hard portions 5a and 6a of the heated tight materials 5 and 6 reach the operating temperature (temperature at which expansion starts) of the hard expandable refractory material forming the hard portions 5a and 6a, The hard portions 5a and 6a of the tight materials 5 and 6 expand several times to several tens of times.

  As a result, the expanded hard portions 5a and 6a close the gaps G3b and G4b between the collar frames 3 and 4, and the gap between the edge material 17 of the shoji DR and the collar frame 3 is blocked by the expanded hard portion 5a. The gap between the DR edge material 18 and the collar frame 4 is closed by the expanded hard portion 6a. In addition, when the hard portions 5a and 6a expand in this way, the expandable refractory material of the closed portions 5ab and 6ab facing the gaps G3b and G4b is formed in the space where the foamed urethanes 3c and 4c are melted and become hollow. By expanding and entering, the space is filled with the expansive refractory material, and the airtightness at that portion is maintained.

  Further, when a fire occurs in the room, the temperature of the portion of the frame FR and the shoji DR facing the room and the temperature of the indoor side exposed surfaces 5ah and 6ah of the tight materials 5 and 6 increase due to the heat of the fire. The temperatures of the flange portions 5c and 6c of the tight materials 5 and 6 and the urethane foams 3c and 4c rise due to the heat transmitted through the indoor portions 3b and 4b of the flange frames 3 and 4 of the frame FR.

  When the foamed urethanes 3c and 4c are heated to a temperature higher than the melting point of the urethane foams 3c and 4c, the foamed urethanes 3c and 4c are melted. If it is closed by the 6 closing parts 5ab, 6ab, the melted urethane foams 3c, 4c will not flow out of the gaps G3b, G4b.

  On the other hand, the hard portions 5a and 6a of the tight materials 5 and 6 are directly heated from the indoor-side exposed surfaces 5ah and 6ah facing the room, so the temperature of the indoor-side exposed surfaces 5ah and 6ah rises first. Thereafter, the temperature inside the hard portions 5a, 6a gradually increases, and the high temperature portion inside the hard portions 5a, 6a spreads.

  As described above, in the hard portions 5a and 6a of the tight materials 5 and 6, the temperature of the indoor side exposed surfaces 5ah and 6ah first increases, and the temperature of the indoor side exposed surfaces 5ah and 6ah is the temperature of the thermally expandable refractory material. When heated to the working temperature of the hard resin (temperature at which expansion starts), expansion of the hard portions 5a, 6a starts from the indoor exposed surfaces 5ah, 6ah, and the hard portions 5a, 6a become harder as the temperature inside the hard portions 5a, 6a increases. The parts 5a and 6a are gradually expanded. At this time, if the temperature of the inside of the hard parts 5a and 6a increases rapidly, the hard parts 5a and 6a expand explosively and rapidly.

  Thereby, similarly to the case where a fire has occurred outdoors, the expanded hard portions 5a and 6a have gaps G3b and G4b between the collar frames 3 and 4, the gap between the edge material 17 of the shoji DR and the fence frame 3, and The gap between the edge material 18 of the shoji DR and the collar frame 4 is closed. Further, at that time, the expandable refractory material of the expanded closing parts 5ab and 6ab enters the opposing gaps G3b and G4b, and the urethane foams 3c and 4c are melted out to expand into the hollow space. Since it is buried, the airtightness in that part is maintained.

  In this way, in both cases where a fire occurs outdoors and when a fire occurs indoors, the temperature of the hard resin of the heat-expandable refractory material (the temperature at which expansion starts) is tight. When the materials 5 and 6 are heated, the gap between the shoji DR and the frame FR is closed by the expanded thermally expandable refractory material (hard portions 5a and 6a).

  Therefore, by setting the working temperature of the hard resin of the thermally expandable refractory material (temperature at which expansion starts) to a temperature lower than the melting point of the foamed urethanes 3c, 4c and the soft portions 5b, 6b of the tight materials 5, 6 The hard portions 5a and 6a of the tight materials 5 and 6 expand at an earlier time than the urethane foams 3c and 4c and the soft portions 5b and 6b are melted, and the gap between the shoji DR and the frame FR is closed. A through passage that penetrates the indoor side and the outdoor side is not formed in the portions of the tight materials 5 and 6.

  At the same time, the hard portions 5a and 6a of the tight materials 5 and 6 made of a hard resin of a heat-expandable refractory material that expands and closes the gap between the shoji DR and the frame FR are flame retardant, and the shoji DR and frame Since the FR does not disappear even when the temperature of the FR becomes high, the building equipped with the opening device according to the present embodiment can prevent the inflow of flammable gas from the outside into the room in the event of a fire. In such a case, flammable gas generated in the room is not allowed to flow out of the room.

Next, referring to FIG. 5, a description will be given of pain reduction and the like felt when a person pinches a finger at a doorway.
When a person pinches a finger at the doorway, the finger is pinched by the corner 18a of the door tip 18 of the shoji DR and the soft portion 6b of the tight material 6. The corner 18a is hard and does not deform, but the soft portion 6b is soft and deforms along the shape of the finger.
Therefore, a human finger is sandwiched between a hard object and a soft object, and when the finger scissors are generated, the impact transmitted to the finger is absorbed by the deformation of the soft part 6b. The pain felt by a person is greatly reduced, and the possibility of injury from finger scissors is greatly reduced.

  By the way, in the Example mentioned above, although the hollow parts 5af and 6af are provided in the hard parts 5a and 6a of the tight materials 5 and 6, the structure which does not provide these hollow parts 5af and 6af may be sufficient. In the above-described embodiment, the soft portions 5b and 6b of the tight materials 5 and 6 have a configuration in which the cushion member provided on the step portions 5ag and 6ag of the hard portions 5a and 6a and the fin pieces 5ba and 6ba are connected. However, the structure which isolate | separated this cushion member and fin piece may be sufficient.

FIG. 6 is a schematic cross-sectional view showing a configuration of a tight material 6 ′ provided on the eaves frame 4 according to another embodiment of the present invention. In the figure, the same reference numerals are assigned to the same parts as those of the tight material 6 shown in FIG. Further, as in the above-described embodiment, the tight material 5 ′ provided in the eaves frame 3 has a configuration in which the direction is reversed in the left-right direction with respect to the tight material 6 ′, and thus description thereof is omitted, but the details of the tight material 5 ′ are detailed. In the description, the reference numerals corresponding to the portions corresponding to the tight material 6 'are attached, and the portions are described.
In FIG. 6, the tight material 6 ′ is composed of two parts, that is, a hard part 6 a ′ mainly formed of a hard resin and a soft part 6 b ′ formed of a soft resin such as PVC sponge.

  The hard portion 6a ′ includes a hollow portion 6af surrounded by the base portion 6aa, the closing portion 6ab, the inclined portions 6ac and 6ad, and the rising portion 6ae of the tight material 6 shown in FIG. 3, the base portion 6aa, the closing portion 6ab, In order to protect the hard resin of the heat-expandable refractory material of the block portion 6aa ′ and the block portion 6aa ′ buried with the hard resin of the same heat-expandable fire-resistant material as the inclined portions 6ac and 6ad and the rising portion 6ae, And a covering portion 6d for covering the surface of the portion with a film of a soft resin (for example, soft PVC).

  Further, the flange portion 6c provided on the lower surface of the block portion 6aa ′ is formed of the same soft resin as the covering portion 6d so that it can be easily attached to the tight material attachment portion 4bb provided in the indoor portion 4b of the flange frame 4. ing. In this embodiment, the same material is used for the flange portion 6c and the covering portion 6d, so that the flange portion 6c and the covering portion 6d are integrally formed.

The soft part 6b ′ formed of a soft resin such as PVC sponge is composed of a thin plate-like fin piece 6ba ′ provided at a position away from the frame- slider exposed surface 6ai in the side of the shoji (prospective direction), and a hard part 6a ′. And a cushion member 6bb ′ provided on the step portion 6ag.

The fin piece 6ba 'is formed in a thin plate shape extending obliquely upward (direction toward the shoji DR) on the exposed surface 6ai between the frame shojis of the block portion 6aa' of the hard portion 6a '. A recess 6be ′ formed by cutting the thickness direction is provided near the base where 6ba ′ is attached to the exposed surface 6ai between the frame shoji.

  The cushion member 6bb ′ has a surface extending horizontally from the upper end portion of the step portion 6ag of the hard portion 6a ′, and a surface obtained by extending the indoor side exposed surface 6ah of the hard portion 6a ′ upward. It has a cross-sectional shape with chamfered portions where the surfaces intersect. By chamfering in this way, when a person's finger is caught, the pain felt by the person can be further suppressed, and the possibility of being injured can be further reduced.

FIG. 7 is a schematic cross-sectional view showing a state of the tight material 6 ′ before closing the shoji DR, and FIG. 8 is a schematic cross-sectional view showing a state of the tight material 6 ′ when the shoji is closed.
As shown in FIG. 7, before closing the shoji DR, no external force is applied to the fin piece 6ba ′ of the tight material 6 ′, so that it is in a free state. In this state, the fin piece 6ba ′ is blocked. It is away from the exposed surface 6ai between the frame shoji of the part 6aa '. Moreover, the opening part of the clearance gap G4b of the collar frame 4 is closed by the part corresponding to the closing part 6ab in block part 6aa '.

  Further, as shown in FIG. 8, when the shoji DR is closed, the corner 18a of the edge material 18 of the shoji DR pushes the fin piece 6ba 'of the tight material 6' so that the fin piece 6ba 'is deformed, and its tip The portion is held in a state of abutting against the upper inclined portion of the block portion 6aa ′ of the hard portion 6a ′ of the tight material 6 ′.

On the other hand, on the side opposite to the edge material 18 of the shoji DR, the corner piece 17a of the edge material 17 pushes the fin piece 5ba ′ of the tight material 5 ′, as shown in FIG. The tip portion is deformed and held in a state where it abuts against the upper inclined portion of the block portion 5aa ′ of the hard portion 5a ′ of the tight material 5 ′.
Therefore, the gap between the shoji DR and the frame FR is closed by the tight materials 5 ′ and 6 ′, the air flow path between the room partitioned by the shoji DR and the outdoor is blocked, and airtightness is maintained.

  In addition, since the operation | movement and effect, etc. which block | close the clearance gap between the shoji DR and the frame FR at the time of fire outbreak are the same as that of the Example mentioned above, the description is abbreviate | omitted.

Next, with reference to FIG. 8, the pain reduction etc. which a person feels when a person pinches a finger at a doorway will be described.
When a person pinches a finger at the doorway, the finger is pinched by the corner 18a of the edge material 18 of the shoji DR and the sponge portion 6bb 'of the soft portion 6b' of the tight material 6 ', and the corner 18a is hard. Although not deformed, the sponge portion 6bb ′ is soft and deforms along the shape of the finger.

  Therefore, a person's finger is sandwiched between a hard object and a soft object, and when the finger scissors are generated, the shock transmitted to the finger is absorbed by the cushion portion 6bb ', so that the person feels Pain is greatly reduced and the chance of injury from finger scissors is greatly reduced.

  As described above, the tight material of the present invention is provided with a step portion of a hard portion made of a heat-expandable refractory material that expands in the event of a fire in a stroke facing the corner portion of the shoji, and fills the step portion. By providing a cushion part, pain and injury due to pinching can be effectively prevented, and since the ratio of the cross-sectional area of the hard part in the tight material is large, the volume of the thermal expansion refractory material after expansion in the event of a fire Is sufficiently large, so that it is possible to sufficiently obtain the effect of preventing soaking.

By the way, in each Example mentioned above, although the case where this invention was applied to the opening part apparatus which has a heat insulation sash structure was demonstrated, this invention is applied similarly to the opening part apparatus which does not have a heat insulation sash structure. Can do.
Further, in each of the above-described embodiments, the indoor portion of the frame and the outdoor portion are connected by the urethane foam casting portion. However, instead of such a casting portion, the indoor portion of the frame and the outdoor portion are thin plates. The present invention can also be applied to an opening device having a heat insulating sash structure in which the resin plate is squeezed between the indoor portion and the outdoor portion while being connected by a resin plate having a high heat insulating property.

  The present invention is an opening device that opens and closes an opening of a building, and applies to any device provided with a tight material that closes the gap between the shoji and the frame when the shoji closes the opening. can do.

DR shoji FR frame 1 upper frame 2 lower frame 3, 4 eaves frame 5, 6, 5 ', 6' tight material 5a, 6a, 5a ', 6a' hard portion 5b, 6b, 5b ', 6b' soft portion 6ah chamber Inside exposed surface 6ai frame exposed surface between shoji 6ba, 6ba 'fin piece 6bb' cushion part

Claims (3)

A frame provided at the opening of the building, a shoji that opens and closes the opening, and a tight material that is provided on the frame or shoji and closes the gap between the shoji and the frame when the shoji closes the opening,
The tight material is made of a heat-expandable refractory material made of a heat-expandable refractory material and a soft resin material, and has a fin piece that comes into contact with the shoji or the frame when the shoji closes the opening,
Thermally expandable fire section, the inner periphery of the sash is not covered with the abutting fin piece shoji or frame with facing the space between the outer peripheral surface of the inner peripheral surface and Shoji frame when closing the opening frame has a frame shoji between the exposed surface which is exposed to the space between the surface and the outer peripheral surface of the sliding door,
An opening device characterized by closing a gap between a frame and a shoji by expanding a heat-expandable fireproof portion in a fire. A frame provided in the opening of the building, and shoji for opening and closing the opening, attached to the tight member mounting portion provided on the frame, tight material to close the gap between the sash and the frame when the sash is closed the opening And
The tight material is made of a heat-expandable refractory material made of a heat-expandable refractory material and a soft resin material, and has a fin piece that comes into contact with the shoji when the shoji closes the opening,
The heat-expandable refractory part has an indoor-side exposed surface that is exposed to the indoor space on the inner peripheral side of the tight material mounting part ,
An opening device characterized by closing a gap between a frame and a shoji by expanding a heat-expandable fireproof portion in a fire. A frame provided at the opening of the building, a shoji that opens and closes the opening, and a tight material that is provided on the frame and closes the gap between the shoji and the frame when the shoji closes the opening.
The frame is formed by connecting the outside of the room and the inside of the room with a resin part,
The tight material is made of a heat-expandable refractory material made of a heat-expandable refractory material and a soft resin material, and has a fin piece that comes into contact with the shoji when the shoji closes the opening,
The thermally expandable refractory part has a closing part facing the resin part of the frame,
An opening device characterized by closing a gap between a frame and a shoji by expanding a heat-expandable fireproof portion in a fire.

Images