JP4344167B2 - Fire compartment penetrating device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a measure for applying a fire prevention measure in a pipe passage hole when piping, a cable, or the like is passed through the through hole in a fire prevention section of a building.
[0002]
[Prior art]
Conventional fire protection devices mainly consisted of a metal frame with a thermally expansible member, but in the case of such measures, the cost is high and the diameter of pipes, cables, etc. is high. Since it is necessary to prepare different dimensions, recently, a method in which a thermally expandable member is formed in a tape shape and this is attached to a pipe or cable in the field and measures are being adopted. An example of this tape-shaped measure tool is shown below.
[0003]
-JP, 2002-227325, A The measure implement and measure method concerning this publication are resin piping which penetrates fire prevention section 3 provided in the partition part of a building, a cable, or a fire prevention section penetration part which makes heat insulation cladding tube 1 penetrate In the construction method of 5, the expansion ratio when the resin pipe, cable, or heat-insulating cladding tube 1 through the fireproof section is heated under an irradiation heat amount of 50 kw / m ² is 3 to 40 times, and is adhesive. After winding the tape-shaped molded body 2 made of a heat-expandable material having a gap, the space between the fire-protection section through portion 5 and the resin pipe, cable, or heat-insulated cladding tube 1 is backfilled with mortar, incombustible material, or putty 4 It is characterized by.
[0004]
-JP, 2002-172181, A The measure concerning this publication is a fire prevention division penetration member with which resin piping, a cable, or heat insulation cladding tube 1 which penetrates fire prevention division 3 provided in a partition part of a building is equipped. In addition, when the fireproof section penetrating member is heated under an irradiation heat amount of 50 kw / m ² , the expansion ratio is 5 to 40 times, and the fracture when the expanded material after heating is compressed at 0.1 cm / s 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 insulation cladding tube. -20%, and the width of the tape-shaped molded body is 25-150% of the thickness of the fireproof compartment penetrating portion.
[0005]
-JP 2002-167585 A measure implement according to this publication, in the fire prevention compartment penetration portion through which the resin piping, cable, or heat insulation cladding tube 1 that penetrates the fire prevention compartment 3 provided in the partition of the building is inserted, 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-blocking section through portion 5 and the resin piping, cable, Alternatively, the gap with the heat insulating cladding tube 1 is backfilled with mortar, noncombustible material, or putty 4.
[0006]
-JP 2000-240854 A The measure according to this publication can be mounted between the inner peripheral surface 2a of the through-hole 2 of the fire prevention compartment 1 and the outer peripheral surface of the tubular body P disposed in the through-hole 2. The heat-expandable heat-resistant sealing material 4 is provided with a resilience to the heat-expandable heat-resistant sealing material 4 having a flexible thickness and flexibility that can be wound along the outer periphery of the tubular body P. A holding means 5 that holds the winding posture against the above is provided.
[0007]
[Problems to be solved by the invention]
However, since each of the above-mentioned measures has a tape shape, it is improved in terms of ease of measures, but has the following drawbacks.
1. When the content of the heat-expandable member other than the base polymer such as a heat-expandable material or a flame retardant is increased, the properties of the base polymer to be connected are impaired, for example, it becomes hard or brittle. Therefore, there is a limit to fixing using thinning or elasticity.
[0008]
2. A pressure-sensitive adhesive layer is formed on the back surface (inner surface) of the tape, and is fixed to a pipe or the like when squeezed. For this reason, when trying to take measures after piping or the like in the through-hole, if the tape can be squeezed inside the through-hole, it is usually wound around the piping outside the through-hole and then into the through-hole. If the tape is fixed to the pipe or the like in advance, the shift cannot be made. Therefore, since it is attached to a pipe or the like in advance and is inserted into the through hole together with the pipe, it is difficult to perform a fine position adjustment, and it is impossible to adjust the position when it is necessary to start over after the measure.
[0009]
3. After fire prevention measures are taken in the through hole, it is necessary to take measures to close the inside of the through hole with mortar or the like, but if the gap between the inner peripheral surface of the through hole and the outer peripheral surface of the tape is small, The mortar does not get in the gap and the mortar does not enter, and sufficient mortar treatment may not be possible.
[0010]
4). In the case of a measure tool described in Japanese Patent Laid-Open No. 2000-240854, when measures are taken in a vertical through hole, in order to prevent the measure tool from dropping, the mounting position restricting means 9 (FIGS. 7 and 8) and the like are used in addition to the adhesive. Therefore, the labor and cost of using the device position restricting means 9 are increased.
[0011]
The present invention has been proposed in view of such a point, and its purpose is to displace a fire prevention section penetrating portion treatment tool formed in a tape or sheet shape into the through hole, and then mortar into the through hole. It is an object of the present invention to provide a measure tool that has a shape that allows easy injection of the mortar and the like, and has a structure in which the injected mortar or the like is not easily peeled off from the inside of the measure tool and the through hole .
[0012]
[Means for Solving the Problems]
In order to achieve the above object, in the invention described in claim 1, in the fire protection section penetrating portion measure tool, the surface of the thermal expansion member formed in the shape of a long sheet or tape is perpendicular to the longitudinal direction. Parallel grooves are formed at regular intervals, and on the surface of the long sheet or tape, downward taper portions are formed along both longitudinal ends of the long sheet or tape. Or it is characterized by forming a groove.
[0013]
【Example】
An embodiment of the invention described in claim 1 will be described in detail with reference to FIG. In FIG. 1, reference numeral 1 denotes a sheet-like heat-expandable member, which contains a heat-expandable material such as heat-expandable graphite, heat-expandable vermiculite, or ammonium polyphosphate in a base polymer or base rubber. Contents.
The thermally expandable member 1 has downward taper portions 12 and 13 formed along the both side ends in the longitudinal direction on the surface thereof, and parallel grooves 2 in the width direction on the surface of the thermally expandable member 1. It is formed at regular intervals.
The tapered portions 12 and 13 are stepped or grooved in a stepped manner. Thus, by forming the taper portions 12 and 13 on the upper surface along both longitudinal ends of the thermally expandable member 1, the thermally expandable member 1 is wound around the pipe 9 as shown in FIG. When the measure is taken, the interval W between the thermally expandable member 1 and the through hole 8 is such that the interval W1 between both inlets becomes W <W1. As a result, the mortar and the putty 14 are easily filled and increased in quantity, and are easily fixed. Moreover, since the taper parts 12 and 13 are formed with stepped steps or grooves, the mortar and putty 14 are not easily peeled off.
[00 14 ]
[ Reference example]
3 to 5 , FIG. 3 is a perspective view showing the whole fire prevention section penetrating part measure tool as a reference example , FIG. 4 is a rear view of the measure tool, and FIG. 5 is an explanatory diagram of a measure example in the penetrating part. . 3 to 5 , reference numeral 1 denotes a sheet-like thermally expandable member, and the surface of the thermally expandable member 1 of this embodiment has a V-shaped, U-shaped, U-shaped, or notched surface. Parallel grooves 2 are formed at regular intervals. Reference numeral 3 denotes an aluminum tape as a stopper attached so as to extend by adhering one end 3 a to the surface of the thermally expandable member 1 on the one end 1 a side, and on the back surface of the other end 3 b of the aluminum tape 3. A pressure-sensitive adhesive layer 4 is formed, and a protective paper 5 is bonded to the surface of the pressure-sensitive adhesive layer 4. Note that other metal tapes can be used as long as they are thin in addition to the aluminum tape.
[00 15 ]
The aluminum tape 3 is attached to the thermally expandable member 1 in advance, but this is a separate body, and an adhesive layer and protective paper are pasted on the entire back surface of the aluminum tape 3. It is good also as a composition. Moreover, although the thermally expansible member 1 and the aluminum tape 3 of Example 1 are in the form of a single sheet, a tape-shaped member wound in a roll shape is cut into a required length and used. Anyway.
[00 16 ]
The heat-expandable member 1 having the above configuration is a general term for a base polymer or base rubber containing a heat-expandable material such as heat-expandable graphite, heat-expandable vermiculite, or ammonium polyphosphate. In FIG. 2, 6 is a non-slip applied to a part of the back surface of the thermally expandable member 1, and this reference example is a sponge body. If this anti-slip has a large coefficient of friction, It may be a rubber body, an elastic material, an adhesive, or the like. Alternatively, a small protrusion may be directly formed on the back surface of the thermally expandable member 1, or a rough surface may be processed into a rough shape.
[00 17 ]
In the measure described above, after the thermal expansible member 1 is first attached to the pipe or cable outside the through-hole so that the parallel groove side is outside, the aluminum tape 3 is wound outward or more. Then, the holding paper 5 of the adhesive layer 4 at the end is peeled off, and is stuck on the first portion (3a) of the aluminum tape 3 and stopped. Then, the thermally expandable member 1 is pushed into the through hole 8 by pushing it manually, and FIG. 5 shows this shifted state. In FIG. 5 , two fire-prevented pipes 9 and 10 are passed through the through-hole 8 of the fire-proof section 7 and fire-proof measures are taken. Filled with mortar or putty.
[00 18 ]
In this reference example, since the heat-expandable member 1 is formed with the parallel groove 2, even when the material is hard (when the content of graphite or the like is large), the parallel groove 2 Due to the action, the heat-expandable member 1 is easy to bend, and can be squeezed so as to be well adapted to piping and the like. Further, when the two pipes 9 and 10 are disposed in one through hole 8 as shown in FIG. 5 by spreading the aluminum tape 3 outside the thermally expandable member 1, it is a non-combustible material. Mutual independence is ensured by the action of the aluminum tape 3. As a result, the performance can be improved when measures such as a plurality of pipes and cables are performed in one through hole.
[00 19 ]
Next, in this reference example, when the anti-slip 6 is provided on a part of the back surface of the thermally expandable member 1, when the pipe or the like is vertically arranged, the measure tool is lowered from the inside of the through hole by gravity. Can be prevented from slipping down.
[0020]
As shown in FIG. 6, when the thermally expandable member 1 is in a roll shape, the measure tool is provided with V or I notches 15 at predetermined intervals at the beginning of the parallel grooves 2, so The thermally expandable member 1 can be arbitrarily cut and used by tearing from here according to the diameter. This reference example is a possible implementation of any heat expandable member 1 of the sheet-like, is useful when applied to a tape-like heat expandable member 1 which is wrapped in a roll.
[0021]
【The invention's effect】
According to the present invention, by forming parallel grooves on the surface of the thermally expandable member, the content other than the base polymer, such as a thermally expandable material and a flame retardant material, is large. Workability is improved because it is easy to bend when scooping.
Further, even when the gap is small in the through hole, the gap on the entrance side becomes large, so that the mortar and putty are easily filled and the amount increases, so that the fixing is firm.
In addition, by rolling the aluminum tape one or more times and fastening the thermally expandable member, when a plurality of pipes or cables are passed through one through hole, independent fireproof performance can be exhibited. it can.
In addition, since the non-slip is formed on the back surface of the thermally expandable member, it does not slide off due to gravity even if it is hit against a vertical pipe.
Further, it is convenient that the thermally expandable member can be cut by hand without using a cutter or the like according to the diameter of the pipe to be struck.
Further, since the stepped portion or the groove is formed in a stepped shape in the tapered portion, there is an effect that the mortar and the putty are not easily peeled off.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a measure instrument according to the present invention.
FIG. 2 is an explanatory diagram of an example in which measures are taken using the measure tool according to the present invention .
FIG. 3 is an explanatory diagram of a reference example.
FIG. 4 is an explanatory diagram of a reference example .
FIG. 5 is an explanatory diagram of an example in which two pipes are taken.
FIG. 6 is an explanatory diagram of a reference example in which V and I notches are provided at the beginning of parallel grooves.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Thermal expansible member 2 Parallel groove 3 Aluminum tape 4 Adhesive layer 5 Protective paper 6 Anti-slip 7 Fire prevention section 8 Through hole 9, 10 Piping 11 Space | gap 12, 13 Taper part 14 Mortar 15 V notch

Claims (1)

  Parallel grooves are formed on the surface of the thermal expansion member formed in the shape of a long sheet or tape at regular intervals in the direction perpendicular to the longitudinal direction, and the surface of the long sheet or tape is A fire section penetrating portion measure device in which downward taper portions are formed along both side ends, and further, step portions or grooves are formed stepwise in the taper portions.

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