JP2004340245A - Fire preventing separation penetrating part measure tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fire preventing separation penetrating part measure tool is easily wound round piping or the like and securely filling mortar at the time of mortar treatment. <P>SOLUTION: Parallel grooves 2 are formed at regular intervals on surfaces of sheet-form or tape-shaped thermally expansible members 1 having fixed thickness, so as to make it easier to curve the thermally expansible members 1. By forming tapered portions 12, 13 in both sides of the thermally expansible members 1, gaps in both inlet sides of a through-hole 8 are made large. As a result, mortar 14 is easily filled in the through-hole 8. In addition, filling amount of the mortar 14 is increased, resulting in firm fixing. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instrument for taking fire prevention measures in a pipe through hole when a pipe, a cable or the like is passed through the through hole in a fire section of a building.
[0002]
[Prior art]
Conventional fire-prevention measures were mainly those with a heat-expandable member embedded in a metal frame. However, such measures require high costs and also require a separate pipe or cable diameter. Since it is necessary to prepare ones having different dimensions, recently, a method of forming a heat-expandable member in a tape shape and wrapping it around a pipe or cable on site has been adopted. An example of this tape-shaped instrument is shown below.
[0003]
Japanese Patent Application Laid-Open No. 2002-227325 discloses a measure and a measure method according to this disclosure, in which a resin pipe, a cable, or a heat insulation cladding pipe 1 penetrates a fire protection section 3 provided in a partition of a building. In the construction method of 5, the expansion ratio when the resin pipe, the cable, or the heat-insulating cladding tube 1 is heated under the irradiation heat of 50 kw / m ² is 3 to 40 times, and the adhesiveness is high. After winding the tape-shaped molded body 2 made of a heat-expandable material having the following, the space between the fire-prevention section penetrating portion 5 and the resin pipe, cable, or heat-insulated coating pipe 1 is backfilled with mortar, non-combustible material, or putty 4. It is characterized by the following.
[0004]
JP-A-2002-172181 The instrument according to this disclosure is a fire protection section penetrating member mounted on a resin pipe, a cable, or a heat insulating cladding pipe 1 that penetrates a fire protection section 3 provided in a partition of a building. The expansion ratio when the fire-prevention section penetrating member is heated under an irradiation calorie of 50 kw / m ² is 5 to 40 times, and when the expanded material after heating is compressed at 0.1 cm / s, breakage occurs. It is formed of a tape-shaped molded body made of a heat-expandable material having a point load of 1 N / cm ² or more, and the thickness of the tape-shaped molded body is 0.5% of the outer diameter of the resin pipe, cable, or heat-insulating coated pipe. -20%, and the width of the tape-shaped molded body is 25-150% of the thickness of the fire protection section penetration portion.
[0005]
Japanese Patent Application Laid-Open No. 2002-167885 discloses a measure according to this disclosure, in which a resin pipe, a cable, or a heat-insulating cladding 1 through which a heat-insulating cladding 1 is inserted penetrates a fire-prevention section 3 provided in a partition of a building. After winding and fixing the tape-shaped molded body 2 made of a heat-expandable material having an expansion ratio of 3 to 40 times when heated under an irradiation heat amount of 50 kw / m ² , the fire-prevention section penetrating portion 5, resin pipe, cable, Alternatively, the gap with the heat insulating cladding tube 1 is backfilled with mortar, non-combustible material, or putty 4.
[0006]
JP-A-2000-240854 The instrument according to this disclosure can be mounted between the inner peripheral surface 2a of the through hole 2 of the fire protection compartment 1 and the outer peripheral surface of the tubular body P disposed in the through hole 2. A heat-expandable heat-resistant seal material 4 having a sufficient thickness and a length and flexibility that can be wound along the outer periphery of the tubular body P. And holding means 5 for holding in a winding posture against the above.
[0007]
[Problems to be solved by the invention]
However, since each of the above-mentioned treatment tools has a tape shape, it is improved in terms of ease of treatment, but has the following disadvantages.
1. When the content of the heat-expandable member other than the base polymer such as the heat-expandable material and the flame-retardant material is increased, the properties of the base polymer serving as a connection are impaired, for example, the material becomes hard or brittle. Therefore, there is a limit in fixing using thinning and elasticity.
[0008]
2. An adhesive layer is formed on the back surface (inner surface) of the tape, and is fixed to a pipe or the like when wound. For this reason, when taking measures after performing piping etc. in the through hole, in any case where the tape can be wound inside the through hole, it is usually wound around the pipe etc. outside the through hole and then into the through hole If the tape is fixed to a pipe or the like in advance, it cannot be shifted. Therefore, since it is previously mounted on a pipe or the like and inserted into the through hole together with the pipe, it is difficult to finely adjust the position and it is impossible to adjust the position when it is necessary to start over after the measure.
[0009]
3. After performing fire prevention measures in the through-hole, it is necessary to take measures to close the inside of the through-hole with mortar or the like.However, if the gap between the inner peripheral surface of the through-hole and the outer peripheral surface of the treated tape is small, tape In some cases, the mortar does not enter the gap due to the end of the mortar, and a sufficient mortar treatment cannot be performed.
[0010]
4. In the case of the measure described in Japanese Patent Application Laid-Open No. 2000-240854, when the measure is taken in a vertical through hole, in order to prevent the measure from dropping, the mounting position regulating means 9 (FIGS. 7 and 8) and the like besides the adhesive are used. Therefore, labor and cost are required for using the device position regulating means 9.
[0011]
The present invention has been proposed in view of the above point, and a first object of the present invention is to provide an instrument which is easy to be wound around a pipe or the like while forming the instrument in a tape or sheet shape. .
Further, a second object is to provide a measure which can be reduced in thickness.
Further, a third object is to provide a treatment tool having a shape capable of completely performing treatment such as mortar even when the gap between the through holes is small.
A fourth object of the present invention is to provide an instrument having a structure that can be mounted on a pipe or the like outside a through hole and then shifted into the through hole, and that does not slide down when mounted on a vertical pipe. It is.
A fifth object of the present invention is to provide a roll-shaped instrument which can be cut and used by hand.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, in the invention according to the first aspect, in the fire-prevention-section penetrating-portion-measuring tool, the tool is parallel to the surface of a sheet-shaped or tape-shaped heat-expandable member formed at a certain thickness at a certain interval. The groove is formed to promote the circularity.
According to the present invention, it is possible to smoothly perform a circular curve even with a relatively hard instrument.
[0013]
Furthermore, in the invention described in claim 2, in the thermal expansion member according to claim 1, when there is a certain thickness, tapered portions are formed on both side end sides of the surface of the thermal expansion member. It is characterized by the following.
According to the present invention, when the mortar or the like is filled, the mortar or the like easily fills the inside and the amount thereof is increased.
[0014]
Furthermore, in the invention described in claim 3, the tapered portion according to claim 2 is characterized in that a step portion or a groove is formed in a stepwise manner.
According to the present invention, the filled mortar and the like hardly peel off.
[0015]
Furthermore, in the invention described in claim 4, the thermal expansion member according to claim 1 is prevented from being unraveled by being wound around a pipe or the like and then wrapped with a thin metal tape on the outside thereof. It is characterized by having.
According to the present invention, independence can be provided when a plurality of pipes and the like are passed through one through hole.
[0016]
Further, in the invention described in claim 5, the heat-expandable member according to claim 1 is provided with a non-slip surface on an inner surface thereof.
ADVANTAGE OF THE INVENTION According to this invention, when it attaches to a vertical pipe, it can prevent sliding down by its own weight.
[0017]
Further, in the invention according to claim 6, the non-slip of claim 5 is a sponge or rubber or elastic material attached to a raised portion formed on the back surface of the thermally expandable member or a part of the rough surface or the back surface. Or it is characterized by comprising an adhesive.
[0018]
Further, in the invention according to claim 7, when the thermally expandable member according to claim 1 is a roll-shaped member, it is a beginning portion of the parallel groove, and a tear V is provided on both sides or one side thereof. Alternatively, it is characterized in that the I notches are formed at regular intervals.
According to the present invention, tearing can be easily performed by hand without a cutter or the like.
[0019]
Embodiment 1
An embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 is a perspective view showing the entire fire protection compartment penetrating portion treatment tool, FIG. 2 is a rear view of the treatment tool, and FIG. 3 is an explanatory view of a treatment example in the penetration portion. In FIGS. 1 to 3, reference numeral 1 denotes a sheet-like heat-expandable member, and the cross-sectional shape of the heat-expandable member 1 of this embodiment is V-shaped, U-shaped, U-shaped, or notched. Are formed at regular intervals. Reference numeral 3 denotes an aluminum tape as a stopper which is attached to the surface of the heat-expandable member 1 on the side of the one end 1a so as to extend the one end 3a, and is attached to the back surface of the other end 3b of the aluminum tape 3. Has a pressure-sensitive adhesive layer 4 formed thereon, and a protective paper 5 is attached to the surface of the pressure-sensitive adhesive layer 4. In addition, other metal tapes can be used as long as they are thin in addition to the aluminum tape.
[0020]
The aluminum tape 3 is attached in advance so as to be attached to the heat-expandable member 1. However, this is a separate body, and an adhesive layer and a protective paper are attached to the entire back surface of the aluminum tape 3. It is good also as a configuration. Further, although the heat-expandable member 1 and the aluminum tape 3 of the first embodiment are in the form of one sheet, a tape-shaped one wound in a roll shape may be cut to a required length. You may do it.
[0021]
The thermally expandable member 1 having the above configuration is a general term for a material in which a thermally expandable material such as thermally expandable graphite, thermally expandable vermiculite, or ammonium polyphosphate is contained in a base polymer or base rubber. In FIG. 2, reference numeral 6 denotes a non-slip provided on a part of the back surface of the heat-expandable member 1, and the first embodiment is a sponge body. This non-slip has a large coefficient of friction. For example, a rubber body, an elastic material, an adhesive, or the like may be used. Alternatively, a small protrusion may be directly formed on the back surface of the heat-expandable member 1 or a roughened surface may be roughened.
[0022]
In the above-described instrument, first, the heat-expandable member 1 is wound around a pipe or a cable outside the through hole so that the side of the parallel groove is outside, and then the aluminum tape 3 is wound one outside or more. Then, the holding paper 5 of the pressure-sensitive adhesive layer 4 at the end is peeled off, and it is stuck on the first portion (3a) of the aluminum tape 3 and stopped. Then, the thermally expandable member 1 is pushed by hand to be shifted into the through-hole 8, and FIG. 3 shows the shifted state. In FIG. 3, two pipes 9, 10 that have been subjected to fire protection are penetrated into the through hole 8 of the fire protection section 7 to perform fire protection. Mortar, putty, etc. are filled.
[0023]
According to the first embodiment, since the parallel grooves 2 are formed in the heat-expandable member 1, even when the material is hard (when graphite or the like is much contained), the parallel grooves 2 are wound when they are wound around a pipe or the like. By the action of 2, the heat-expandable member 1 can be easily bent, and can be wound so as to be well adapted to a pipe or the like. Further, by winding the aluminum tape 3 around the outside of the heat-expandable member 1 once, as shown in FIG. The function of the aluminum tape 3 ensures mutual independence. As a result, when a measure such as a plurality of pipes and cables is taken in one through hole, the performance can be improved.
[0024]
Next, in the first embodiment, the non-slip 6 is provided on a part of the back surface of the heat-expandable member 1, so that when the pipe or the like is vertically piped, the measurer can be removed from the through hole by gravity. It can be prevented from sliding down.
[0025]
Embodiment 2
The second embodiment corresponds to the second aspect of the present invention. As shown in FIG. 4, a tapered portion is formed on the upper surface of the thermally expandable member 1 in a direction (width direction) orthogonal to the winding direction. By forming the tapered portions 12 and 13 in this way, as shown in FIG. 5, when taking measures against the pipe 9 as shown in FIG. When the interval W between the through holes 8 is small, the interval W1 on both entrance sides of the through hole 8 becomes large such that W <W1. As a result, the mortar and the putty 14 can be easily filled and quantitatively increased, and can be easily fixed. The tapered portions 12 and 13 may be formed with stepped steps or grooves so that the mortar and the putty 14 are hardly peeled off.
[0026]
Embodiment 3
Third Embodiment The third embodiment corresponds to the invention described in claim 7. As shown in FIG. 6, when the heat-expandable member 1 is in the form of a roll, the V-shaped portion is provided at a fixed interval at the beginning of the parallel groove 2. Alternatively, the I-notch 15 is provided so that the heat-expandable member 1 can be cut and used arbitrarily according to the diameter of the pipe or the like. Although the third embodiment can be implemented with the sheet-like heat-expandable member 1, it is convenient when applied to the roll-shaped tape-like heat-expandable member 1.
[0027]
【The invention's effect】
According to the first aspect of the present invention, since the parallel grooves are formed on the surface of the heat-expandable member, the content of the heat-expandable material, the flame-retardant material, etc. other than the base polymer is large, and the measure is made of a hard material. However, the workability is improved because the curl is easily formed when wound around a pipe or the like.
According to the second aspect of the present invention, even when the gap is small in the through hole, the gap on the entrance side is large, so that the mortar or putty is easy to fill and the amount is large, so that the fixing is firm.
According to the third aspect of the invention, the filled mortar or putty is hard to drop.
According to the invention as set forth in claim 4, when a plurality of pipes, cables, and the like are passed through one through-hole, the aluminum tape is wound one or more times to fasten the heat-expandable member. It is possible to exhibit the excellent fire prevention performance.
According to the fifth and sixth aspects of the present invention, since the anti-slip is formed on the back surface of the heat-expandable member, it does not slide down by gravity even when wound around a vertical pipe or the like.
According to the seventh aspect of the present invention, the heat-expandable member can be cut and used by hand without using a cutter or the like according to the diameter of the pipe to be wound, which is convenient.
[Brief description of the drawings]
FIG. 1 is an explanatory view of a treatment tool according to the present invention.
FIG. 2 is a rear view of the treatment tool according to the present invention.
FIG. 3 is an explanatory view of an example in which two pipes are treated using the treatment tool according to the present invention.
FIG. 4 is an explanatory view of a second embodiment in which tapered portions are formed on both sides of a thermally expandable member.
FIG. 5 is an explanatory diagram of an example in which a measure is taken using the measure of the second embodiment.
FIG. 6 is an explanatory view of a third embodiment in which V and I notches are provided at the beginning of the parallel groove.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Thermal expansion member 2 Parallel groove 3 Aluminum tape 4 Adhesive layer 5 Protective paper 6 Non-slip 7 Fireproof section 8 Through hole 9, 10 Pipe 11 Void 12, 13 Tapered part 14 Mortar 15 V notch

Claims (7)

A tool for penetrating a fire-prevention section, wherein parallel grooves are formed at regular intervals on the surface of a sheet-like or tape-like heat-expandable member molded to a constant thickness to promote circularity. 2. The fire-prevention section penetration part measure tool according to claim 1, wherein when the heat-expandable member has a certain thickness, tapered portions are formed on both side ends of the surface of the heat-expandable member. The fire-prevention section penetrating device according to claim 2, wherein a step portion or a groove is formed in the tapered portion in a stepwise manner. 2. The fire-preventive section penetration part measure according to claim 1, wherein the heat-expandable member is prevented from being unwound by being wound around a pipe or the like and then wrapped around with a thin metal tape. Utensils. The fire-prevention-section penetration-portion measure device, wherein a non-slip is provided on an inner surface of the heat-expandable member according to claim 1. The fireproof compartment according to claim 5, wherein the non-slip is made of a sponge or rubber, an elastic material, or an adhesive adhered to a raised portion formed on the back surface of the thermally expandable member, a rough surface, or a part of the back surface. Penetration measure tool. In the case where the heat-expandable member according to claim 1 is a roll-shaped member, a V or I notch for tearing is formed at a fixed interval on both sides or one side at the beginning of the parallel groove. A fire-prevention-section penetration-portion measure tool characterized by the above-mentioned.

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