JP6641416B2 - Tight materials for fittings with fire protection - Google Patents

Description

  The present invention relates to a fitting tight material used for sealing an opening or a gap of a fitting and preventing fire, and a sealing and fire preventing structure for a fitting provided with such a fitting tight material.

  Openings or gaps between the frames of fittings such as windows, shoji, doors (ie, doors), doors, brans, and transoms, and between movable parts such as shojis, An airtight material such as a tight material or a sealing material for improving watertightness is provided.

  Since fire enters the opening or the gap in the fitting at the time of fire, it is also an issue to improve fire prevention performance. Patent Literature 1 includes a frame and a shoji, and a thermal expansion refractory containing a thermal expansion refractory component at an arbitrary position of a frame material forming a frame or a frame forming the frame or a frame. It describes a resin sash in which the component-containing portion is integrally formed. Patent Literature 2 discloses an airtight material for a sash attached to a sash frame or a shoji, which includes a base fitted to a sash holder, and a protrusion protruding from the base to the outside of the holder. A sash characterized by being made of an airtight material molding resin having abrasion and elasticity, the protruding portion is made of a material containing a heat expansion refractory component in the airtight material molding resin, and the base and the protruding portion are integrally molded. It describes airtight materials.

JP 2012-202186 JP 2012-202190

  However, in the resin sash of Patent Literature 1, since the sash itself contains a thermal expansion refractory component, a special sash must be manufactured, and fire resistance cannot be easily provided to a general-purpose sash. . In Patent Literature 2, the protruding portion, which is the tip of the airtight material for a sash, contains a thermal expansion refractory component, and the tip may be worn by an external force due to opening and closing. In that case, after long-term use, the airtightness is impaired at such a tip portion, so that the performance against fire cannot be exhibited. In addition, the heat-expandable refractory component is gray-black, and when viewed by an observer in a state where such protrusions are exposed, the appearance is poor and the design is impaired.

  An object of the present invention is to provide a tight material for fittings which is excellent in sealing property and fire resistance and has improved design, and a sealing structure for fittings provided with such a tight material for fittings.

  The present inventors have found that the above objects can be achieved by covering the thermal expansion material with a covering member that allows the thermal expansion material to expand with heating, and have completed the present invention.

That is, the present invention is as follows.
[1] A tight material for a fitting comprising a movable member and a frame surrounding the movable member,
A tip made of a non-thermally expandable refractory material,
A heat-expandable portion made of a heat-expandable refractory material on the base end side from the distal end,
A non-thermally expandable refractory material attached to the movable member or the frame of the fitting, a expandable refractory material, or a tight end provided with a base end portion composed of both the non-thermally expandable refractory material and the expandable refractory material. Wood.
[2] Whether the base end is attached to a movable member and the tight material is disposed in an opening between the movable member and another movable member or an opening between the movable member and a frame. Item 2. The tight material according to Item 1, wherein the base end is attached to a frame, and the tight material is disposed in an opening between the movable member and the frame.
[3] a first portion connected to the distal end portion, the first portion having a length in a width direction being equal to or less than a length in the width direction of the distal end portion; Item 3. The tight material according to Item 1 or 2, further comprising a second portion extending from the first portion to be connected to the base end portion.
[4] The base end portion has two pairs of extending portions extending from two positions in the longitudinal direction of the second portion of the thermally expandable portion made of the thermally expandable refractory material to both sides in the width direction of the tight material. A pair of extension portions on the base end side of the two pairs of extension portions that are fitted to the movable member or the groove of the frame by being fitted to the movable member or the groove of the frame. The tight material according to any one of claims 1 to 3.
[5] The tight material according to item 1, wherein the non-thermally expandable refractory material comprises a thermoplastic resin, a thermosetting resin, an elastomer, a rubber, or a combination thereof.
[6] A structure for sealing and fireproofing a fitting comprising a movable member and a frame surrounding the movable member,
A fitting comprising a movable member and a frame surrounding the movable member,
A sealing and fireproof structure for a fitting comprising: the tight member according to any one of Items 1 to 5 attached to the movable member or the frame of the fitting.

  ADVANTAGE OF THE INVENTION According to this invention, while the opening part or gap | interval in a fitting can be airtight and / or watertight by the front-end | tip part comprised from the non-thermally-expandable refractory material, the heat-expandable part comprised from the thermally-expandable refractory material is used. In the event of a fire, the openings or gaps can be closed, improving the performance of each. Further, as the non-thermally expandable refractory material, a thermoplastic resin, a thermosetting resin, an elastomer, a rubber, or a combination thereof having various appearances can be used, so that the design is also improved.

The longitudinal section showing the 1st embodiment of the tight material of the present invention. The schematic diagram which shows the example of the fire door in this invention. FIG. 3 is a vertical sectional view of an essential part taken along line 3-3 in FIG. 2. The longitudinal section showing another embodiment of the tight material of the present invention. The longitudinal section showing another embodiment of the tight material of the present invention. The longitudinal section showing another embodiment of the tight material of the present invention. The longitudinal section showing another embodiment of the tight material of the present invention. The longitudinal section showing another embodiment of the tight material of the present invention.

  Hereinafter, the fittings for fittings of the present invention and the sealing and fireproof structure of fittings provided with such fittings for fittings will be described with reference to the drawings. As used herein, the term “fittings” includes windows (including sliding windows, casement windows, up-and-down windows, etc.), shoji, doors (ie, doors), doors, brans, and transoms. The “tight material” includes a distal end portion made of a non-thermally-expandable refractory material, and a base end portion made of a non-thermally-expandable refractory material attached to the movable member or the frame of the fitting. In the part, it is for contacting the position of the fitting different from the place where the base end is attached, and for maintaining the opening or gap in the fitting between the tip and the base in a sealed state. Here, "sealing" indicates that even if the sealing is not completely 100%, it is sufficient that the intrusion of the fluid can be significantly prevented as compared with the case where no tight material is provided. Further, the “gap” refers to an opening formed between two members or portions facing each other in the opening.

Referring to FIG. 1, a tight material 1 for a fitting according to the present invention includes a distal end portion 2 made of a non-thermally expandable refractory material and a thermal expansion material made of a thermally expandable refractory material on the base end side of the distal end portion 2. An inflatable portion 4 and a proximal end 6 made of a non-thermally expandable refractory material, an expandable refractory material, or both a non-thermally expandable refractory material and an expandable refractory material are provided. When the base end portion 6 is composed of both a non-thermally-expandable refractory material and an intumescent refractory material, even if two layers of the non-thermally-expandable refractory material and the intumescent refractory material are laminated in the same size. It may be composed of an intumescent refractory material layer and a non-thermally-expandable refractory material layer sandwiching both sides of the intumescent refractory material. A configuration in which the periphery of the refractory material is surrounded by the non-thermally expandable refractory material may be used.
Although the size of the tight material 1 is not particularly limited, for example, the length L1 in the width direction of the tight material ₁ is 5 m.
M～50mm, longitudinal length L ₂ is 5 mm to 50 mm, the length in the width direction and the longitudinal direction perpendicular to the direction perpendicular to the plane, the attachment portion of a fitting base end portion 6 of the tight material 1 is attached ( In particular, it may have various lengths corresponding to the length of the groove. For example, when the tight material 1 is attached to a groove extending along the width direction of a door having a width of 850 mm, the length of the tight material 1 in the direction perpendicular to the width direction and the longitudinal direction is about 800 mm to 850 mm.

The distal end portion 2 has a substantially semicircular cross-sectional shape, and has a distal end 2 a at an apex to be in contact with a position of a fitting requiring sealing, and a proximal end 2 b connected to the thermally expandable portion 4. The distal end portion 2 is hollow in the present embodiment, and the elasticity is increased by providing the space 2c inside the distal end portion 2, so that the impact when the fitting, particularly the movable member of the fitting, abuts can be reduced. In addition, the weight of the tip 2 can be reduced. The non-thermally-expandable refractory material constituting the distal end portion 2 is made of, for example, a thermoplastic resin, a thermosetting resin, an elastomer, a rubber, or a combination thereof. Examples of the thermoplastic resin include a fluororesin and a polyphenylene ether. , Modified polyphenylene ether, polyphenylene sulfide, polycarbonate, polyetherimide, polyetheretherketone, polyarylate, polyamide, polyamideimide, polybutadiene, polyimide, acrylic resin, polyacetal, polyamide, polyethylene, polyethylene terephthalate, polycarbonate, polyester, polystyrene, polyphenylene Examples include sulfide, polybutylene terephthalate, polypropylene, polyvinyl chloride, ABS resin, and AS resin. Resins, phenolic resins, melamine resins, urea resins, unsaturated polyester resins, alkyd resins, polyurethanes, thermosetting polyimides, etc., and examples of elastomers include olefin-based elastomers, styrene-based elastomers, ester-based elastomers, and amide-based elastomers And vinyl chloride-based elastomers.Examples of rubber include natural rubber, silicone rubber, styrene / butadiene rubber, isoprene rubber, butadiene rubber, chloroprene rubber, acrylonitrile / butadiene rubber, nitrile butadiene rubber, butyl rubber, Examples include ethylene propylene rubber, ethylene propylene diene rubber, urethane rubber, silicone rubber, and fluoro rubber. The non-thermally expandable refractory material is preferably composed of an elastomer, rubber, or a combination thereof, thereby imparting elasticity to the tip 2 and increasing the sealing performance of the fitting.

Thermally expandable portion 4 forms a T-shape in this embodiment, is connected to the proximal end 2b of the distal end portion 2, a length of approximately the same width as the length in the width direction of the base end 2b (equal to L ₁₎ L ₃ and a second portion 4b extending perpendicularly from the center of the first portion 4a to connect to the proximal end 6. The width direction of the length L ₄ of the second portion 4b is smaller than the width direction length L ₃ of the first portion 4a. The width direction length L ₃ of the first portion 4a may be smaller than the length in the width direction of the base end 2b.

When viewed from the direction of the arrow in FIG. 1, the observer does not see the thermally expandable portion 4. The tip 2 also functions as a decorative member, the appearance of the tip 2 may be arbitrary, and the color and pattern may be determined according to the purpose. For example, the tip 2 may be similar in color to the fitting to which the tight material 1 is attached. For example, when the tight material 1 is attached to an aluminum frame, the color of the tip 2 may be aluminum. A similar color means one of three elements represented by color characteristics, that is, hue, lightness, and saturation, having the same or close hue. In addition, the tip portion 2 can be given an arbitrary pattern, such as a wood grain tone to visually produce a warmth, to give a design property. In this way, by coating the black-gray thermal expansion material 4 with the tip 2, it is possible to enhance the design.

The thermally expandable material constituting the thermally expandable portion 4 is a material that expands when heated, such as a synthetic resin kneaded with expandable graphite. The resin constituting the thermally expandable material may be a thermoplastic resin or a thermosetting resin. The refractory resin composition constituting the heat-expandable material usually contains a thermoplastic resin or a thermosetting resin, heat-expandable graphite, and an inorganic filler, and the ratio of these components is not particularly limited. The heat-expandable graphite is 10 to 300 parts by weight, and the inorganic filler is 30 to 500 parts by weight based on 100 parts by weight of the plastic resin or the thermosetting resin. Various refractory resin compositions constituting such a thermal expansion material are known, for example, a thermoplastic resin, containing a phosphorus compound, neutralized thermally expandable graphite, and an inorganic filler, The content of each is, with respect to 100 parts by weight of the thermoplastic resin, the total amount of the phosphorus compound and the neutralized thermally expandable graphite is 20 to 200 parts by weight, and the inorganic filler is 50 to 500 parts by weight. A fire-resistant resin composition (JP 9-227716), wherein the weight ratio of the heat-expandable graphite: phosphorus compound subjected to the neutralization treatment is 9: 1 to 1: 100; Parts, 10 to 300 parts by weight of neutralized thermally expandable graphite and 50 to 500 parts by weight of an inorganic filler (JP-A-2000-143941); 100 parts by weight of an epoxy resin; 15-150 weights of heat-expandable graphite treated Of a non-combustible fibrous material having a weight per square meter of 25 to 2000 g in a sheet having a thickness of 0.3 to 6 mm comprising 30 to 500 parts by weight of an inorganic filler and 30 to 500 parts by weight of an inorganic filler. Characteristic fire-resistant sheet composition (JP-A-2002-12678); a rubber component (A) comprising a non-crosslinked rubber and / or a partially crosslinked rubber, and a heat-expandable inorganic substance (in particular, a neutralized heat-expandable graphite) ) (B), an inorganic filler (C), and a liquid resin (D) having an average molecular weight of 2,000 to 4,000, which is characterized by comprising an adhesive fire-resistant rubber composition (JP-A-2003-192840); A resin composition wherein the total amount of the phosphorus compound and the heat-expandable graphite is 20 to 300 parts by weight, and the inorganic filler is 30 to 500 parts by weight, based on 100 parts by weight of the resin as a main component; For polyvinyl chloride resin A fire-resistant resin composition containing expandable graphite, wherein the compounding ratio is 1 to 10 parts by weight of the heat-expandable graphite with respect to 100 parts by weight of the polyvinyl chloride resin. 2008-180068); 100 parts by weight of chlorinated vinyl chloride resin, 3 to 300 parts by weight of thermally expandable graphite, 3 to 200 parts by weight of inorganic filler, and 20 to 200 parts by weight of a plasticizer, and a phosphorus compound (phosphate ester) Chlorinated vinyl chloride resin composition (WO2013 / 080563) characterized by not containing a plasticizer).

The base portion 6 made of a non-thermally-expandable refractory material, an intumescent refractory material, or both a non-thermally-expandable refractory material and an intumescent refractory material is separated from the first portion 4a of the thermally-expandable portion 4. Two pairs of extending portions extending from two positions in the longitudinal direction of the second portion 4b, that is, a pair of extending portions 6a and 6b extending in the width direction of the tight material 1 from the second portion 4b, and extending portions 6a and 6b And a pair of extending portions 6c and 6d separated from the extending portions 6a and 6b on the base end side and extending in parallel with the extending portions 6a and 6b. In the present embodiment, the length of the extending portion 6a, from the end of 6b to end length and extending portion 6c, from the end of 6d to the end is the same L _5, the length in the width direction of the base end 2b and It is smaller than the length L ₃ in the width direction of the first portion 4a, the extending portion 6a, from the end of 6b to the edge length and the extended portion 6c, 6d
May be different from each other, and the lengths of the extending portions 6a, 6b, 6c, and 6d are the length of the proximal end 2b in the width direction and the width of the first portion 4a in the width direction. it may be the same as the length L _3.

In the present embodiment, the second portion 4b and the extending portions 6c and 6d are flush with each other at the base end. When the base end portion 6 is made of a non-thermally-expandable refractory material, the non-thermally-expandable refractory material forming the proximal end portion 6 is the same as the above-mentioned non-thermally-expandable refractory material forming the distal end portion 2. Examples of the non-thermally-expandable refractory material constituting the base end portion 6 are the same as those described above for the distal end portion 2. When the base end portion 6 is made of a heat-expandable refractory material, the heat-expandable refractory material forming the base end portion 6 is different even if it is the same as the heat-expansion material forming the heat-expandable portion 4. Examples of the heat-expandable refractory material forming the base end portion 6 are the same as those described above for the heat-expandable portion 4.

  FIG. 2 is a schematic view showing an example of a fire door to which the tight material 1 of the present invention of FIG. 1 is attached. The fire door 10 includes a door 12 as a movable member having a handle 14 and a frame 20 extending in four directions surrounding the door 12. The frame 20 includes an upper frame 21, a lower frame 22, a right frame 23, and a left frame 24. A plurality (three in the drawing) of hinges that connect the left frame 24 and the door 12 along the longitudinal direction of the left frame 24. The provision of the door 30 allows the door 12 to open around the hinge 30 when the handle 14 is turned counterclockwise (counterclockwise). In the tight material 1 of the present invention, the extended portions 6c and 6d are fitted into grooves provided in the upper frame 21, the lower frame 22, the right frame 23, and the left frame 24 as described in detail later. , Are attached to the fire door 10 in a square ring along the frame 20.

Referring to FIG. 3, a groove 26 is formed in the door 12 and the lower frame 22 of the frame 20, and the groove 26 is formed with a first groove 26 a continuous with the opening or gap between the door 12 and the frame 20, On the opposite side of the opening or gap between the frames 20, there is provided a second groove portion 26b that extends from the first groove portion 26a to a space that is wider than the first groove portion 26a in the vertical direction in the drawing. The first groove portion 26a and the second groove portion 26b extend along substantially the entire length of the lower frame 22 in the longitudinal direction. The lower frame 22 has an L-shaped cross section and includes a vertically extending portion 22a and a horizontally extending portion 22b. The tight material 1 is attached to the frame 20 by the pair of extending portions 6c and 6d passing through the edge 22c of the lower frame 22 that defines the first groove 26a and fitted into the second groove 26b. ing. Further, since the edge portion 22c of the lower frame 22 is sandwiched between the extension portions 6a and 6c and between the extension portions 6b and 6d, the tight material 1 is firmly so as not to come off the frame 20. Fixed. In other words, in the present embodiment, short vertical length S ₁ of the first groove 26a than the vertical length S ₂ of the second groove 26b, the vertical length S ₂ are extended in the second groove 26b The length from end to end of the portions 6c, 6d or greater, the second groove 26b has dimensions sufficient to accommodate the extensions 6c, 6d, and the end to end of the extensions 6a, 6b. length to greater than the vertical length S ₁ of the first groove 26a,
And the extending portion 6a, 6b and the extending portion 6c, the distance between the 6d is equal to or greater than the thickness S ₃ of the edge 22c of the lower frame 22.

  The tip 2a of the tip 2 of the tight material 1 contacts the door 12 when the door 12 is closed, so that the opening or gap between the door 12 and the frame 20 can be sealed. Since the tip 2a of the tip 2 is rounded in a curved shape, the impact when it comes into contact with the door 12 is dispersed, and the durability against the impact when the door 12 is repeatedly opened and closed is excellent. In addition, the tip 2 of the tight material 1 and the thermally expandable portion 4 are in contact with each other at the horizontally extending portion 22b of the lower frame 22, so that the tight material 1 is more stably fixed to the frame 20, and The sealing of the opening or gap between the frames 20 is also enhanced.

  The tight material 1 is also attached to the upper frame 21, but the structure for attaching the tight material 1 to the upper frame 21 is the same as the structure for attaching the tight material 1 to the lower frame 22, and a description thereof will be omitted.

  The fire door 10 may have any known door configuration. For example, as a door having the standards of the Ministry of Construction Notification No. 1369, (1) the frame is made of iron and the thickness of both sides of the door is 0.5 mm or more. For example, the door core may be made of a honeycomb-shaped paper core or the like, which is either an iron-plated one or (2) an iron-made one having a thickness of 1.5 mm or more and not conforming to the above notification. May be configured.

Although not wishing to be bound by theory, in the event of a fire, the door greatly warps toward the heated surface due to the difference in linear expansion between the heated surface and the non-heated surface, but when the tight material 1 of the present invention is used, In the event of a fire, the heat-expandable portion 4 expands due to heat, and the heat-expandable portion 4 follows the deformation or warpage of the door during the fire while closing the opening or gap between the door 12 and the frame 20. It is considered that deformation or warpage is reduced. Therefore, it is possible to increase the height of the door and / or reduce the thickness of the door. For example, the height of the door is usually about 2,200 mm, but it can be set to 2,300 mm or more, or even 2,400 mm or more. Further, the thickness of the door is usually about 40 mm, but it can be set to 35 mm or less, and further to 30 mm or less. Even with such door specifications, good fire resistance is maintained. Further, since the deformation or warpage of the door is suppressed to be small, the number of hinges attached to the door can be reduced (for example, from three places to two places).

  The method for producing the tight material 1 of the present invention is not particularly limited, and includes, for example, a tip portion 2 made of a non-thermally-expandable refractory material by co-extrusion molding, a thermally-expandable portion 4, and a non-thermally-expandable refractory material. The base portion 6 may be manufactured by integrally molding the base portion 6. When the distal end portion 2 and the proximal end portion 6 are made of the same non-thermally expandable refractory material, they can be made by two-color molding. In the case of co-extrusion molding, each tank is filled with a solvent of a composition which is a material for each of the distal end portion 2, the thermally expandable portion 4, and the proximal end portion 6, and the solvent sent out from each tank is subjected to a co-extrusion molding machine. , And then cut with a processing machine to obtain a tight material 1 as an extruded product. As another embodiment, the tight material 1 of the present invention can be manufactured by separately manufacturing each of the distal end portion 2, the thermally expandable portion 4, and the proximal end portion 6, and combining them by bonding or the like. .

  The present invention is a fitting and sealing structure for a fitting comprising a movable member and a frame surrounding the movable member, wherein the fitting comprises a movable member and a frame surrounding the movable member, and a movable member of the fitting or The present invention also encompasses a fitting and fire protection structure provided with the tight material of the present invention attached to a frame.

  Although the present invention has been described with reference to the first example, the present invention is not limited to this, and the following various modifications are possible.

  In the first embodiment, the extending portions 6c and 6d of the tight material 1 are fitted into the second grooves 26b of the grooves 26 provided in the frame 20, but as shown in FIG. May be further fitted into the groove 26. In this case, for example, the two pairs of extending portions 6a and 6b and the extending portions 6c and 6d of the tight material are fitted into the second groove portions 26b of the grooves 26, and the extending portions 6a of the tight material 1 are formed. , 6b abut on the base end of the edge 22c of the lower frame 22 defining the first groove 26a on the distal end side, and the first portion 4a of the thermally expandable portion 4 abuts on the tip of the edge 22c of the lower frame 22. By contact, the tight material 1 is firmly fixed to the lower frame 22. The attachment of the tight material 1 to the lower frame 22 is also applicable to the upper frame 21, the right frame 23, and the left frame 24.

-The number of the extension portions 6a-6d of the tight material 1 is not particularly limited to two pairs, and may be one or more pairs of extension portions.
In the first embodiment, the heat-expandable portion 4 is disposed at the center of the tight material. However, as shown in FIG. 5, the heat-expandable portion 4 of the first embodiment is the same as the tip 2. The non-thermally expandable refractory material may be formed integrally with the distal end portion 2, and the thermal expandable portion 4 may be provided on the proximal end side of the proximal end portion 6. Also in this case, since the thermally expandable portion 4 is fitted into the groove 26, the tight material 1 seen from the viewer does not impair the design, and the tight material 1 is placed between the movable member and another movable member. Or an opening between the movable member and the frame to form a sealed and fire-proof structure.

  In the first embodiment, the heat-expandable portion 4 is arranged. However, the first portion 4a and the second portion 4b extending from the center of the first portion 4a so as to be connected to the base end portion 6 vertically. However, as shown in FIG. 6, the first portion 4a is formed integrally with the tip 2 from the same non-thermally-expandable refractory material as the tip 2, and the heat-expandable portion 4 is formed of the tight material 2. You may make it comprise the 2nd part 4b extended in a longitudinal direction.

As shown in FIGS. 7 and 8, the part of the thermally expandable portion 4 of the first embodiment is formed integrally with the tip 2 from the same non-thermally expandable refractory material as the tip 2, and The thermally expandable portion 4 may extend from one or both sides in the width direction of the base end portion 6. Also in this case, since the thermally expandable portion 4 is fitted into the groove 26, the tight material 1 seen from the viewer does not impair the design, and the tight material 1 is placed between the movable member and another movable member. Or an opening between the movable member and the frame to form a sealed and fire-proof structure.
In the first embodiment, the cross section of the distal end portion 2 of the tight material 1 is substantially semicircular, but the distal end portion 2 may have any other shape as long as it can provide the sealing or fireproofing of the opening or gap of the fitting. There may be. Further, as shown in FIG. 8, the distal end portion 2 does not have a space inside, and may be solid.

  The base end 6 of the tight material 1 is attached to a movable member of a fitting, and the tight material 1 is an opening between the movable member and another movable member or an opening between the movable member and the frame. Or the base end portion 6 may be attached to a frame of a fitting, and the tight material 1 may be disposed in an opening between the movable member and the frame. The fitting is not limited to the fire door 10 and may be any fitting including a window, a shoji, a door (that is, a door), a door, a bran, a transom, and the like.

  For example, when the tight material of the present invention is applied to a sliding window provided with an inner sash and an outer sash and a frame for the inner sash, the tight material is provided in a groove provided in a combination frame of the inner sash and the outer sash, Attach to the groove provided on the frame and the groove provided on the frame facing the frame of the sash and / or the outer sash, and between the inner sash and the outer sash and between the inner sash and / or the outer sash and the frame. The airtightness of the openings or gaps is improved, and in the event of a fire, the intrusion of fire or smoke into the openings or gaps between the inner and / or outer frames and between the inner and / or outer frames and the frame is prevented. It can be reduced or prevented.

  The disclosures of all patent applications and publications cited herein are hereby incorporated by reference in their entirety.

  Hereinafter, the present invention will be described more specifically with reference to Examples, but the present invention is not limited thereto.

Evaluation method 1
Example 1
The present invention is applied to an iron door (height: 2,500 mm × width: 850 mm, door thickness: 40 mm, door core material: paper honeycomb structure (1.2 kg / m ² ), thickness of iron plate on both sides of the core material: 0.6 mm). A tight material having the same shape as the tight material 1 of the first embodiment was attached to the door frame. The width direction of the length L ₁ of the tight material 20 mm, longitudinal length L ₂ is a 25 mm, and the thickness at tight material longitudinal direction of the first portion 4a of the expandable portions 4 and 3 mm. The non-expandable tip 2 and proximal end 6 were formed from soft vinyl chloride, and the expandable portion 4 was formed from co-extrusion molding from heat-expandable graphite-containing soft vinyl chloride. Example 2
Example 1 was applied to an iron door (height: 2400 mm × width: 850 mm, door thickness: 30 mm, door core material: paper honeycomb structure (1.2 kg / m ² ), thickness of iron plate on both sides of core material: 0.6 mm each). The same tight material as above was attached.
Comparative Example 1
The present invention is applied to an iron door (height: 2,500 mm × width: 850 mm, door thickness: 40 mm, door core material: paper honeycomb structure (1.2 kg / m ² ), thickness of iron plate on both sides of the core material: 0.6 mm). A tight material having the same shape and dimensions as the tight material 1 of the first embodiment and made entirely of chloroprene rubber was attached to a door frame.
Comparative Example 2
Iron door (height 2400 mm × width 850 mm, TobiraAtsu of 30 mm, Tobirashinzai Paper honeycomb (1.2 kg / m ^2), the thickness of both sides of the iron plate of the core member each 0.6 mm) in Comparative Example 1 The same tight material as above was attached.
Fire resistance test A heating test for 60 minutes based on the ISO834 curve was performed on both surfaces of the doors to which the tight materials of Examples 1 and 2 and Comparative Examples 1 and 2 were attached. The following 1. ~ 3. Those that passed all three judgments were evaluated as ○ (pass).
1. 1. No continuous flame for 10 seconds or more on the heated back side 2. No continuous flame emission for 10 seconds or more to the heated back side. No cracks, damage, gaps, etc. are generated. The results are shown below. In Examples 1 and 2, in both the outdoor and indoor heating tests of the door, the door met the fire resistance criteria after 60 minutes. In Comparative Example 1, a flame erupted midway in both the outdoor and indoor tests, and in Comparative Example 2, a flame erupted in the indoor test, failing to meet the fireproof criteria.

Evaluation method 2
An aluminum sliding window having a height of 1100 mm and a width of 1700 mm was used. Each window glass of the sliding window is composed of a 6.8 mm thick netted glass sheet on the outdoor side and a 4 mm thick float glass sheet on the indoor side, and has a 9 mm air layer between the two glass sheets. A commercially available non-fireproof airtight tight material is inserted into the frame and the shoji. A commercially available tight material for airtightness was replaced with the tight material of the first embodiment of the present invention on all or a part of the circumference.
Example 3
The tightly extruded tight material of the present invention was used on the entire circumference, where the non-fireproof hermetic tight material was inserted.
Example 4
The tightly extruded tight material of the present invention was used in the vertical portion of the frame and the shoji where the non-fireproof hermetic tight material was inserted.
Fire resistance test A heating test for 20 minutes in accordance with ISO834 was conducted in the above sliding window, and the following judgments were made in 20 minutes. ~ 3. Those that conformed to all of the above were evaluated as ○ (pass).
1. 1. No continuous flame for 10 seconds or more on the heated back side 2. No continuous flame emission for 10 seconds or more to the heated back side. No cracks, damage, gaps, etc. are generated. The results are shown below. In Examples 3 and 4, the test results were good in any of the heating tests.

  1, 1a, 1b, 1c, 1d, 1e: Tight material, 2: Tip portion, 4: Thermal expansion portion, 4a: First portion of thermal expansion portion, 4b ... The second part of the heat-expandable part, 6 ... the base end, 6a, 6b, 6c, 6d ... the extension, 10 ... the fire door as a fitting, 12 ... the door as a movable member , 20 ... frame.

Claims (7)

A tight material for fittings comprising a movable member and a frame surrounding the movable member,
The tip,
A base end attached to the movable member or the frame of the fitting,
A first portion disposed so as to be in contact with the tip portion, the length in the width direction being equal to or less than the length in the width direction of the tip portion;
A second portion arranged to be in contact with the first portion, the length in the width direction being shorter than the length of the first portion in the width direction, and extending from the first portion to be in contact with the base end portion;
With
The tip and the first portion are made of a non-thermally-expandable refractory material,
The base portion is composed of a non-thermally-expandable refractory material, or an intumescent refractory material, or both a non-thermally-expandable refractory material and an intumescent refractory material, and the second portion is a non-thermally-expandable refractory material, Composed of a refractory material,
At least one of the base end portion and the second portion is made of an intumescent refractory material or a tight material made of both a non-thermally-expandable refractory material and an intumescent refractory material. A tight material for fittings comprising a movable member and a frame surrounding the movable member,
A tip made of a non-thermally expandable refractory material,
A base end portion made of a non-thermally-expandable refractory material attached to the movable member or the frame of the fitting,
A first portion disposed so as to be in contact with the tip portion, the length in the width direction being equal to or less than the length in the width direction of the tip portion;
A second portion arranged to be in contact with the first portion, the length in the width direction being shorter than the length of the first portion in the width direction, and extending from the first portion to be in contact with the base end;
On the proximal end side opposite to the distal end portion, a thermal expansion portion arranged to be in contact with the second portion and the proximal end portion ,
Tight member said second portion that is composed of a non-intumescent fireproof material. The base end is attached to a movable member, and the tight material is disposed in an opening between the movable member and another movable member or an opening between a movable member and a frame, or end mounted to the frame, the tight material, tight material according to claim 1 or 2 is disposed in an opening between the movable member and the frame. The proximal portion includes two pairs of extending portions extending from two positions in the longitudinal direction of the second portion to both sides in the width direction of the tight material, and one pair of the proximal portions of the two pairs of extending portions is provided. The tight material according to any one of claims 1 to 3 , wherein the extension portion is attached to the movable member or the frame by fitting the extending portion into the groove of the movable member or the frame of the fitting. The tight material according to any one of claims 1 to 4 , wherein the non-thermally expandable refractory material comprises a thermoplastic resin, a thermosetting resin, an elastomer, a rubber, or a combination thereof. A fitting comprising the tight material according to any one of claims 1 to 5 . A fitting and hermetic structure for a fitting comprising a movable member and a frame surrounding the movable member,
A fitting comprising a movable member and a frame surrounding the movable member,
A sealing and fireproof structure for a fitting comprising the tight member according to any one of claims 1 to 5 attached to the movable member or the frame of the fitting.