JP3796228B2 - Fire prevention section through hole measures member - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, when a fire or the like occurs in a through hole provided in the fire prevention compartment in order to draw in a pipe or cable that penetrates the fire prevention compartment, the adjacent room or The present invention relates to a so-called fire prevention section through-hole measure member that thermally expands by heat at the time of fire so as to block the through-hole so that flames, smoke, toxic gases, etc. do not flow upstairs or downstairs.
[0002]
[Prior art]
Conventionally, since there are various dimensions in the outer diameter of piping, cables, and the like drawn into a through-hole in a wall or floor as a fire prevention compartment, a measure member having a dimension corresponding to the outer diameter dimension is prepared.
For this reason, since there are many types of measure members, there is a problem that the cost increases and product management becomes difficult.
In order to solve this problem, there has been proposed a measure member (fire resistant thermal expansion material) of a method in which the measure member is formed in a tape shape and is attached to a pipe or the like (Japanese Patent Application No. 2001-32610). .
However, in the case of this tape method, it is necessary to cut the tape-shaped measure member after peeling off the release paper protecting the adhesive layer in the field, and then squeezing it onto the pipe or the like.
[0003]
In addition, after mounting a normal measure member on a pipe or the like outside the through-hole, the tape-like measure member with adhesive is attached to the pipe in order to determine the position by shifting the measure member into the through-hole. Since it is fixed to the pipe at this stage, it is not possible to shift only the measure member, and it is necessary to shift the pipe into the through hole together.
For this reason, piping etc. used as treatment object must not be previously drawn in and fixed in a penetration hole. Therefore, there is a problem that the application is limited.
In addition, when pasted with an adhesive, there is a problem that when a recycling problem occurs later, the measure member cannot be peeled off from the piping or the like, and it takes time.
[0004]
[Problems to be solved by the invention]
The present invention is proposed in view of such points, and what is its purpose? It can be used for pipes with outer diameters of several sizes, and even if the pipes are fixed, after bonding outside the through hole, it can be shifted into the through hole and fixed in place. It is another object of the present invention to provide a fire-protection section through-hole measure member that is convenient for separation during recycling in an unexpanded state.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, in the invention according to claim 1, in the fire prevention section through-hole measure member , a tongue piece is provided from the inner wall surface toward the center direction inside the cylindrical thermal expansion material having a circular cross section. In the fire prevention section through-hole measure member having a configuration in which the cylindrical thermal expansion material is formed in a C-shaped cross section by forming one split along the longitudinal direction of the cylindrical thermal expansion material. A V-shaped cutout is formed at one or both ends of the entrance .
According to this invention, it can mount | wear with respect to piping easily from a notch part.
[0010]
[Action]
Measures member configured as described above with respect to piping, is pushed by pressing a shaped cutouts of the V before the piping, it is possible to split it-out opens to the exterior the pipe. At this time, held in the piping by the tip of the tongue, in the case of piping or the like is the largest size as viewed from standard member, the tongue piece is fitted on the pipe or the like while breaking bend maximized along the piping at the root thereof The
[0011]
If the measure member is shifted to the through hole side after being mounted on the pipe or the like in this way, the measure member can be smoothly shifted into the through hole due to the deformation of the tongue piece due to the elasticity of the tongue and the sliding of the pipe. it can.
[0012]
The measure member displaced in this manner can maintain a stable interval on the outside of the pipe or the like on the outside of the pipe or the like and exert its maximum performance by the function of the spacer played by the tongue piece.
Then, when separating the unexpanded measure member from the pipe or the like for recycling, the tongue piece is only in contact with the pipe or the like, so that it can be easily shifted and removed, and can be opened and removed.
Further, in the case of a through hole provided in the floor, the measure member does not slide off from the pipe or the like due to the elasticity and friction of the tongue piece.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The fire prevention compartment through-hole measure member according to the present invention is made of a known heat-expandable resin, rubber or graphite (hereinafter referred to as “thermal expansion material”) formed into a cylindrical shape. However, this cylindrical body may be as it is or may have a C-shaped cross section that is split in the longitudinal direction. Further, the thermal expansion material may be a single material, or may have a shape in which a metal plate or the like is bonded to the outside. An injection or compression molding method using a mold can be used for forming the measure member. One measure member is prepared which can accommodate several sizes of piping.
[0014]
[Example 1]
Hereinafter, based on an example figure, the details of the measure member concerning the present invention are explained. 1 is a perspective view showing the whole of the measure member, FIG. 2 is an explanatory view showing a state in which the measure member is mounted on a small-diameter pipe, FIG. 3 is a front view of the measure member viewed from the AA ′ direction, and FIG. FIG. 5 is a front view of the measure member as viewed from the direction BB ′. Reference numeral 1 denotes a cylindrical thermal expansion material (thermally expandable graphite) molded using an injection or compression molding mold, and this thermal expansion material 1 is arranged in the longitudinal direction of the cylindrical main body. A slit 2 is formed, V-shaped notches 3 and 3a are formed at the inlets at both ends, and a tongue piece 4... Facing toward the center is formed at one end of the inlet. A hole 5 is formed at the center of the tip of the tongue pieces 4. However, the tip of the tongue pieces 4 may be of a type that reaches the center of the circular thermal expansion material 1 and does not have the hole 5 formed therein. Further, the tongue pieces 4 may be formed not only on one side of the thermal expansion material 1 but also on the inlets on both ends. The tongue piece 4 is made of a soft material because there is a risk of damaging the surface of hard pipes and cables. If necessary, the tongue piece 4 can be made thin, or it can be flexible by inserting a split groove. It is also possible to devise such that the damage is increased to prevent damage and simplification of shifting. In addition, the tongue piece 4 may be integrated with the thermal expansion material 1, or a material different from the thermal expansion material 1 may be integrated or later installed in the thermal expansion material. Also good.
[0015]
The thermal expansion material 1 having the above-described configuration is covered with the pipe 8 by using the split 2 from one of the cutout portions 3 and 3a outside the through hole 7 provided in the fire prevention section 6, as shown in FIG. Is pushed into the through hole 7 to a predetermined position. Then, a mortar process is performed on the gap between the thermal expansion material 1 and the through hole 7 to finish the measure.
The above embodiment is an example of a pipe having an outer diameter that fits in the hole 5 formed at the tip of the tongue piece 4..., But FIGS. 4 and 5 show that the outer diameter of the pipe 8 is the diameter of the hole 5. The tongue pieces 4 are bent along the pipe 8 because the outer diameter of the pipe 8 is large.
[0016]
[ Reference example ]
As shown in FIGS. 6 and 7, this reference example is an example in which tongue pieces 4 are formed in the center of the thermal expansion material 1, and the measures are the same as those in the first embodiment.
[0017]
【The invention's effect】
As described above, the present invention forms a tongue piece at the entrance or the middle portion of the cylindrical thermal expansion material in the fire prevention section measure member, while bending the tongue piece according to the outer diameter size of the pipe or the like. By being configured to hold the pipes and the like, a single thermal expansion material can be used for multi-dimensional pipes and the like.
As a result, the type of dimension of the thermal expansion material to be prepared can be reduced to ½ to ¼ compared to the conventional example, and the production cost can be reduced and product management can be facilitated.
Furthermore, since the pipe and the like can be positioned at the center of the thermal expansion material by the action of the tongue piece, the performance is stabilized.
Furthermore, since it is not directly bonded to the pipe or the like using an adhesive or the like, it can be attached to the pipe or the like outside the through hole, and then shifted into the through hole or can be pulled out from the through hole.
Furthermore, in the case of unexpanded, it is easy to separate from piping or the like later.
In addition, the tongue piece also functions as a blindfold for the gap between the thermal expansion material and the piping. There is also an effect to prevent falling.
[Brief description of the drawings]
FIG. 1 is a perspective view of a thermal expansion material for fire prevention compartment through-hole measures according to the present invention.
FIG. 2 is an explanatory diagram of a measure example.
FIG. 3 is a front view when viewed from the AA ′ direction in FIG. 2;
FIG. 4 is an explanatory diagram of an example in which a large-diameter pipe is taken.
FIG. 5 is a front view when viewed from the direction BB ′ in FIG. 4;
FIG. 6 is an explanatory diagram of a thermal expansion material in which a tongue piece of Example 2 is formed in the middle.
FIG. 7 is an explanatory diagram of a thermal expansion material when a large-diameter pipe is taken.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Thermal expansion material 2 Split 3, 3a Notch part 4 Tongue piece 5 Hole part 6 Fire prevention division 7 Through hole 8 Piping

Claims (1)

By forming a tongue piece from the inner wall surface toward the center direction inside the cylindrical thermal expansion material having a circular cross section, and inserting one split along the longitudinal direction of the cylindrical thermal expansion material, In the fire-blocking section through-hole measure member having a C-shaped cross-section of the thermal expansion material, a V-shaped notch is formed at one or both of the split inlets. Hole measure member.

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