JP2007162271A - Fireproof airtight material and fire door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fireproof airtight material which is simple and compact in structure, mountable in a door having only a thin thickness, and facilitates mounting work and height adjustment at very little expense in time and effort, and to provide a fire door. <P>SOLUTION: The fireproof airtight material A is formed of rod-shaped thermally foamable materials 1, and mounting members 2 holding the thermally foamable materials 1 and inserted into respective mounting grooves 13 formed in an edge of a door 11. Each mounting member 2 is formed of a base portion 3 having a storage recess in which the thermally foamable material 1 is stored, and a fin portion 4 extending outward from the base portion 3. The thermally foamable material 1 has swelling properties when heated, and the mounting member 2 is formed of an elastic material. Then each fin portion 4 has height adjusting incisions 41. The base portion 3 has a fixing fin formed on an external surface thereof. Thus only by press-fitting the base portion 3 into the mounting groove 13 formed in the door 11, the fireproof airtight material A can be mounted in the door 11. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a fireproof and airtight material and a fire door. More specifically, the present invention relates to a fireproof and airtight material used for fire prevention of a summing portion or the like in a double door, and a fireproof door structure using the same.

Conventional fireproof and airtight materials and fire doors include the following.
1) Conventional example 1 (see Patent Document 1)
A guide groove extending in the vertical direction is provided on the summing surface of the double door, and a shielding bar material is inserted into the guide groove so as to be movable toward the other door. Inside the shielding bar material, the sealing material is attached by pulling and energizing with a return elastic member, and a thermal foam expansion material is attached to the front end opening of the shielding member, and the shape memory alloy is attached to the back part of the shielding bar. The elastic member for extrusion which consists of is incorporated. When a fire occurs and the ambient temperature rises to the transformation temperature of the elastic member for extrusion, the elastic member recovers its shape, pushes out the shielding bar material against the return elastic member, and protrudes from the guide groove The gap between the two doors is closed by the material and the expanded thermal foam material to prevent the flame from leaking.

2) Conventional example 2 (see Patent Document 2)
The double door door is made of a hollow material having a rectangular cross section, and a recess is formed in the longitudinal direction on the outer peripheral side. An airtight material for maintaining the airtightness of both fire doors and a heating expansion material are disposed in the concave portion, and these are integrally attached to the concave portion with screws. The heat-expandable material is reliably attached by the attachment with this screw, and in the event of a fire, the heat-expandable material expands and closes the gap between the doors, thereby preventing the spread of fire.

However, since the conventional example 1 uses two springs of a coil spring-like return elastic member and push-out elastic member arranged in series, it becomes structurally large. In addition, a cylindrical shielding bar that accommodates the return elastic member is required, and a cylindrical guide part for sliding the bar and a guide shaft that holds the sealing material through the two elastic members are required. The number of parts increases.
Therefore, it cannot be applied unless the thickness of the door is large, and the labor for assembly and installation is also great.

Further, in the above conventional example 2, since the airtight material and the heat expansion material are screw-fixed, it takes time to mount. Normally, the rigidity of a door is long in the vertical direction, and it takes a great deal of time to screw a long airtight material and a heated expansion material with an appropriate interval.
In addition, since the height of the airtight material cannot be adjusted by itself, if you want to adjust it, you must use a shim (thin plate) for adjusting the thickness, but screw it while changing the combination of multiple shims. In order to adjust the height alone, it takes more man-hours than the installation work, which is inefficient.

JP-A-9-273363 JP 2004-19186 A

  SUMMARY OF THE INVENTION In view of the above circumstances, the present invention has an object to provide a fireproof and airtight material and a fireproof door that can be attached to a door having a simple structure, a compact size, and a thin thickness, and that is very easy to install and adjust the height. And

The fireproof and airtight material of the first invention comprises a rod-shaped heating foam material and a mounting member inserted into a mounting groove formed in the edge of the door while holding the heating foam material. The heating foam is composed of a base portion having an accommodation recess for containing the heating foam material and a fin portion extending outward from the base portion, and the heating foam material has a property of expanding when heated, and the mounting member is It is characterized by being formed of an elastic material.
In the fireproof and airtight material, it is preferable that a fixing fin is provided on the outer surface of the base portion.
In the first aspect of the fireproof and airtight material, it is preferable that a cut for height adjustment is formed in the fin portion.
In the fire door of the second invention, a mounting groove is formed in a rigid edge portion of each door facing the summing portion in the double door, or a rigid edge portion of one door, and the mounting groove is defined in claim 1, A fireproof and airtight material described in 2 or 3 is attached.
In the fire door of the second invention, an attachment groove is formed in one or more of the rigid edge, the lower edge and the upper edge of the door. The fireproof and airtight material described in 3 is attached.

According to the first invention, the heated foam material is expanded by heat at the time of the occurrence of a fire and prevents the passage of the flame, so that the fire can be prevented. And an attachment member has the following effect. B) Since the base is provided with a housing recess, it can be held by simply placing a heated foam material therein. B) Since the base portion is made of an elastic material, it can be mounted simply by press-fitting into the mounting groove, and there is no need to use a special tool or component. C) Since the fin portion is also made of an elastic material, it is possible to close the gap of the summing portion of the double doors at the time of non-fire.
Also, if you cut off the fin part along the cut, you can easily adjust the height of the fin part, so you can optimally adjust the overlap of one or both door fins in the summoning part, and the cut is Since no special tools are required, it can be done easily.
Furthermore, since the fin for fixing the base portion is closely attached in the mounting groove of the door, the fireproof and airtight material can be firmly attached to the door. Moreover, since no special mounting parts are required, the mounting operation is simplified. Furthermore, since it is only necessary to form a mounting groove on the door, the present invention can be applied to a thin door.
According to the second invention, in the summing part of the double door, the fired foam of the fireproof and airtight material of one or both doors expands in the event of a fire, so the gap in the summoning part is closed in a short time and the fire prevention function is achieved. It can be demonstrated. In addition, since the fins of both doors can be kept in contact with each other during normal non-fire, the gap in the summoning unit can be closed.
Also, in single doors or double doors, heating foam expands in the event of a fire at the door's rigid edge, between the lower edge of the door and the floor, or between the upper edge and the entrance frame. The gap between the door and the door can be closed in a short time, and the fire prevention function can be exhibited. In addition, since the floor and the fin portion can be kept in contact with each other during normal non-fire, the gap can be closed.

Next, an embodiment of the present invention will be described with reference to the drawings.
(Fireproof and airtight material)
First, the fireproof airtight material which is 1st invention is demonstrated based on FIGS. 1-4.
FIG. 1 is a perspective view of a fireproof and airtight material according to one embodiment of the first invention. 2 is an end view of the fireproof and airtight material of FIG. FIG. 3 is an explanatory view showing a method of adjusting the height of the fin portion.

In FIGS. 1 and 2, A is a fireproof and airtight material, and is composed of a heating foam material 1 and an attachment member 2. This heating foam material 1 is a known member, and is a non-combustible member having a property of expanding several tens of times by heating. Due to this expanding property, it is possible to prevent the passage of a flame and to exert a fire prevention function.
In the present invention, the heated foam material 1 is used in the form of a rod. In the illustrated example, two rod-shaped heating foam materials 1 are used together, but this may be one large-diameter material or three or more small-diameter materials. In addition, in FIG. 1, although the heating foam material 1 is displayed longer than the attachment member 2, it is actually used by the same length.

The mounting member 2 is mainly composed of a base portion 3 and a fin portion 4. The material is an elastic member such as rubber. The base part 3 has a thick U-shaped cross section, and is composed of a bottom part 31 and standing walls 32, 32 rising from both sides thereof. The space surrounded by the bottom 31 and the standing walls 32 on both sides is an accommodation recess 30. The accommodating recess 30 is a portion that accommodates the heating foam 1 in a hollow having a substantially rectangular cross section.
Further, fixing fins 35 are formed on the outer peripheral surfaces on both sides of the base portion 3. The fixing fin 35 extends obliquely upward from the bottom 31 side. It may be slightly curved. And it continues along the longitudinal direction of the base part 3. The fixing fin 35 fulfills the function of being closely attached and firmly held when inserted into a mounting groove to be described later. Note that the fixing fin 35 may be omitted, and the base part 3 main body closely contacting the mounting groove is also included in the present invention.

There are two fin portions 4, which rise upward from the upper surfaces of the standing walls 32 on both sides of the base portion 3. The fin portion 4 is a member that rises substantially linearly. In addition, several cuts 41 are formed along the longitudinal direction, and the respective cuts 41 are provided in parallel at intervals in the height direction.
In the illustrated example, the cuts 41 are four, but may be three or less, or may be five or more. The greater the number, the more delicate the height adjustment.
In addition, the cuts 41 are formed on both the front and back surfaces of each fin portion 4, but may be only on the front side or only on the back side as long as it can be torn by hand.

FIG. 3 shows an example of height adjustment of the fin portion 4. (A) The figure shows the highest state with all four cuts 41 left. (B) The figure is the state of the intermediate | middle height which cut off the upper part with the 2nd cut 41 from an upper end. (C) The figure is the state which cut off the whole fin part 4 from the lowermost notch. In addition to these illustrations, the height can be changed by freely changing the cutting position, such as cutting with the first cut 41 from the upper end or cutting with the third cut 41 from the upper end.
As described above, the fin portion 4 is made of rubber and can be easily torn off by hand with the notch 41. Therefore, the height adjustment operation can be easily performed on the site without using a special tool or the like.

Next, another embodiment of the fireproof and airtight material of the first invention will be described.
FIG. 4 illustrates two fireproof and airtight materials according to other embodiments.
(A) A figure is a wide type and makes the base part 3 thickness W shape by sectional view. That is, the standing walls 32 and 32 rise from both sides of the bottom 31 and the standing wall 33 rises from the center. Both sides of the central standing wall 33 are accommodating recesses 30 for accommodating the heated foam material 1, and the fin portion 4 rises from the upper surface of the central standing wall 33. The fixing fin 35 is the same as that shown in FIG. In this type, two fins 4 may be raised from the standing walls 32, 32 on both sides.

(B) The figure is a narrow type, and corresponds to the figure in which the right half is deleted from the figure in (A). That is, the base portion 3 is formed from the bottom portion 31, the one standing wall 32, and the standing wall 31. The fin portion 4 is raised only from the standing wall 33. The fixing fin 35 is also thin and has a short length.
In addition to the above, as the attachment member 2, various shapes can be adopted as long as the attachment member 2 can be press-fitted into the attachment groove of the door and the fin height can be adjusted.

(Fire door)
Next, an embodiment of the fire door which is the second invention will be described.
First, the basic structure of a double door that requires the function of a arson door will be described with reference to FIG.
Reference numeral 10 denotes a double door, which includes two doors 11 and 11. The base end side of each door 11 and 11 is attached to the entrance frame 20 of the building by a hinge (not shown) so as to be freely opened and closed. And the free end side of each door 11 and 11 is a summon part which faces a partner door mutually. Reference numerals 12 and 12 are handles.
The fireproof and airtight material A according to the first aspect of the present invention is a typical use example in which the fireproof and airtight material A is attached to the rigid edge portion of the summing portion of the doors 11 and 11 in the double door 10 as described above.

FIG. 5 shows a cross section of the double door 10 indicated by the line V-V in FIG. Mounting grooves 13 and 13 for end surfaces are formed on the rigid edges of the summing portions (free ends) of the doors 11 and 11. The method of forming the mounting groove 13 is arbitrary, and it is sufficient that a groove having a U-shaped cross section is formed. A fireproof and airtight material A is inserted and fixed in each of the mounting grooves 13 and 13.
In addition, although not shown in figure, you may form the attachment groove | channel 13 only in the one door 11 in a summoning part, and you may attach the fireproof airtight material A. As shown in FIG.

Next, a method for attaching the fireproof and airtight material A to the cancellation groove will be described with reference to FIG.
First, as shown in (A), the fireproof and airtight material A is pushed into the mounting groove 13 of the door 11 with fingers. If the width w of the mounting groove 13 is formed slightly smaller than the width W of the mounting member 2 in the natural state (that is, the state where the fixing fin 35 is open), the fixing fin 35 is pressed in the inserted state. The base portion 3 is fixed in close contact with the mounting groove 13 and is firmly fixed so that it does not come off naturally. Since it is only necessary to press-fit with fingers as described above, no special tools or mounting parts are required. In the embodiment without the fixing fin 35, if the width of the base portion 3 (that is, the dimension between the outer surfaces of the standing walls 32, 32) is set slightly larger than the dimension between the inner surfaces of the mounting groove 13, The base portion 3 can be brought into close contact with the mounting groove 13 by the rubber elasticity.

When the fireproof and airtight material A is fixed as described above, the height of the fin portion 4 is then adjusted. This is only required to separate the fin portion 4 from an arbitrary cut 41 as shown in FIG. Of course, this work can be done simply by pinching with your fingers and no special tools are required.
Then, as shown in FIG. 6 (B), when the fins 4 and 4 of the fireproof and airtight material A of both doors 11 and 11 are each at the optimum height (in the example shown, the left side is low and the right side is It is possible to prevent the passage of air even during normal non-fire.

FIG. 7 is a cross-sectional view taken along the line IIV-IIV in FIG. 8 and shows an example of a fire door with a fireproof airtight material A attached to the lower edge of the door 11.
A side edge mounting groove 23 formed by bending a steel plate or the like is provided on the lower edge portion of the inner surface of the door 11. The mounting groove 23 opens downward.
The fireproof and airtight material A is pushed into the mounting groove 23. The fin portion 4 faces downward and comes into contact with the upper surface of the lower frame of the floor material 21 at the entrance.

The mounting groove 23 for the side edge may be formed on the upper edge of the door 11 outside the lower edge shown in FIG. Further, the fireproof and airtight material A may be attached to the rigid edge by the mounting groove 23.
And it is also possible to attach not only a double door but a single door.
Moreover, although the fireproof airtight material A shown in FIG. 7 is a narrow type shown in FIG. 4 (B), a wider type may be used.

In each of the above embodiments, the attachment member 2 has the following effects.
a) Since the accommodation recess 30 is provided in the base portion 3, it can be held only by putting the heating foam material 1 therein.
b) Since the base portion 3 is made of an elastic rubber material, it can be attached simply by being press-fitted into the attachment grooves 13 and 23, and there is no need to use a special tool or component.
c) Since both the base portion 3 and the fin portion 4 are made of an elastic rubber material, the attachment grooves 13 and 23 do not need to be straight, and can be brought into close contact with the attachment grooves 13 and 23 even if they are curved.
d) Since the fixing fins 35 of the base portion 3 are in close contact within the mounting grooves 13 and 23 of the door 11, the fireproof and airtight material A can be firmly attached to the door 11. Moreover, since no special mounting parts are required, the mounting operation is simplified.
e) Since the fin part 4 is also an elastic rubber material, the gap of the summoning part of the double door 10 can be closed normally when there is no fire.
f) If the fin portion 4 is partially cut along the notch 41, the height of the fin portion 4 can be easily adjusted, so that the overlap of the fins 4 of the doors 11 and 11 in the summoning portion is optimally adjusted. It can be done easily because it does not require special tools.
g) Since it is only necessary to form the mounting grooves 13 and 23 in the door 11, it can be applied to a door having a small thickness.

In each of the above embodiments, the fire door has the following effects.
h) In the summoning section of the double door 10, the fired foam 1 of the fireproof airtight material A of one or both doors 11, 11 expands in the event of a fire. Can be demonstrated. Moreover, since the fins 4 of the one or both doors 11 and 11 can be kept in contact with each other during a normal non-fire, the gap in the summoning unit can be closed.
i) Since the heated foam material 1 expands between the door 11 and the entrance frame in the event of a fire, the gap can be closed in a short time and the fire prevention function can be exhibited. Moreover, the fin portion 4 can normally block the gap during non-fire.
j) Not only double doors but also single doors can be easily constructed as fire doors.

It is a perspective view of the fireproof airtight material which concerns on one Embodiment of 1st invention. It is an end view of the fireproof airtight material of FIG. It is explanatory drawing which shows the height adjustment method of a fin part. It is an end view of the fireproof airtight material which concerns on other embodiment of 1st invention. It is a cross-sectional view of the fire door according to one embodiment of the second invention. It is explanatory drawing of the operation | work which attaches a fireproof airtight material to the attachment groove of the fire door of FIG. It is a longitudinal cross-sectional view of the fire door which concerns on other embodiment of 2nd invention. It is a perspective view of a double door to which the present invention is applied.

Explanation of symbols

A fireproof and airtight material 1 heating foam material 2 mounting member 3 base portion 4 fin portion 10 double door 11 door 13 mounting groove 23 mounting groove 30 receiving recess 35 fixing fin 41 notch

Claims (5)

A rod-shaped heating foam,
In a state where the heated foam material is held, the mounting member is inserted into a mounting groove formed at the edge of the door,
The mounting member is composed of a base portion having a housing recess for housing the heating foam material, and a fin portion extending outward from the base portion,
The heating foam has a property of expanding when heated,
The mounting member is formed of an elastic material. The fireproof and airtight material according to claim 1, wherein a fixing fin is provided on the outer surface of the base portion. The fireproof and airtight material according to claim 1, wherein a height adjustment cut is formed in the fin portion. 4. A fireproof and airtight material according to claim 1, 2 or 3, wherein a mounting groove is formed in a rigid edge portion of each door facing the summing portion of the double door or a rigid edge portion of one door. A fire door characterized in that is installed. A mounting groove is formed in any one or more of the rigid edge, lower edge or upper edge of the door, and the fireproof and airtight material according to claim 1, 2 or 3 is attached to the mounting groove. A fire door characterized by being.

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