JP2020193712A - Through-hole treatment unit - Google Patents

Abstract

To provide a through-hole treatment unit which is excellent in workability when applying after treatment to a through-hole of a partition, and which can efficiently fill a gap between the through-hole and a long body including a space formed by uneven and curved surface parts.SOLUTION: A through-hole treatment unit (1) comprises: a cylindrical sleeve member (20); and a closed member (30) having flexibility. The closed member (30) is arranged along a circumferential direction (C) of the sleeve member (20), and the sleeve member (20) and the closed member (30) are integrally formed at an end in an axial direction (L) of the sleeve member (20).SELECTED DRAWING: Figure 3

Description

The present invention relates to a through hole measure unit and a through hole measure structure.

In general, the internal space of a building is divided into a plurality of room spaces by compartments such as walls, floors, and ceilings. In order to dispose a long body such as a pipe or a cable over these a plurality of room spaces, a through hole may be formed in the compartment and the long body may be inserted through the through hole. In this case, post-treatment such as filling the gap between the through hole and the long body with a filler is required. For example, in order to prevent the spread of fire in the event of a fire in a certain room space, it is necessary to take fire prevention measures in the gap between the through hole and the long body.

For example, Japanese Patent Application Laid-Open No. 2005-73357 (Patent Document 1) discloses a fire prevention structure using a pack member containing a paste-like heat-expandable refractory material sealed inside a bag as a closing member. .. The closing member (pack member) is wound around the elongated body on the opening side of the receiver installed in the through hole of the compartment, and then pushed into the through hole (receiver). Then, the closing member fills the gap generated between the inner surface of the through hole and the outer surface of the elongated body while being held by the receiver. Here, in the closing member of Patent Document 1, the inner surface of the bag body is in close contact with the heat-expandable refractory material having a high consistency on the entire surface, and can be freely deformed as it is.

Since the closing member of Patent Document 1 has a deformable flexibility, it has an advantage that it easily fits into an uneven curved surface, but has a drawback that it is not easy to push it into a through hole of a compartment. It was. In particular, when the gap between the outer surface of the long body and the through hole or the inner surface of the receiver is narrow, the sliding resistance becomes relatively large, but the pressing force when pushing the closing member is dispersed. , It may take a lot of time and effort for such a pushing operation.

Japanese Unexamined Patent Publication No. 2005-733557

It has excellent workability when post-treating the through hole of the compartment, and sufficiently fills the gap between the through hole and the long body including the space formed by the uneven curved surface portion. There is a need for technology that can do that.

The through-hole countermeasure unit according to the present invention is
A tubular sleeve member inserted into a through hole formed in a building compartment,
With a flexible closing member,
The closing member is arranged so as to overlap the sleeve member along the circumferential direction, and the sleeve member and the closing member are integrated at one end in the axial direction of the sleeve member.

According to this configuration, the sleeve member and the closing member can be integrally inserted into the through hole of the compartment in a state where the closing member has a tubular shape along the inner surface of the sleeve member. Even when the closing member is flexible and soft, the closing member can be easily inserted deep into the through hole together with the sleeve member having a certain degree of rigidity. After being inserted into the through hole, the portion of the closing member that is not integrated with the sleeve member (hereinafter referred to as "non-integrated portion") is easily deformed to be formed by an uneven curved surface. The space can be filled with non-integrated parts. Therefore, by using the through-hole countermeasure unit having this configuration, it is possible to improve the workability when performing post-treatment on the through-hole of the compartment, and also to create a space formed by the uneven curved surface portion. Including, the gap between the through hole and the long body can be sufficiently filled.

Hereinafter, a preferred embodiment of the through-hole countermeasure unit according to the present invention will be described. However, the scope of the present invention is not limited by the preferred embodiments described below.

As one embodiment, it is preferable that the circumferential length of the closing member is longer than the circumferential length of the sleeve member, and both ends of the closing member in the circumferential direction can overlap each other.

According to this configuration, when the closing member is formed into a tubular shape along the inner surface of the sleeve member, both ends of the closing member in the circumferential direction can be overlapped with each other. Therefore, even when the non-integrated portion of the closing member is deformed, it is easy to arrange the closing member without interruption over the entire circumference. Further, in the circumferential direction portion where the closing members overlap each other, the amount of the closing member is larger than that in the other portions. Therefore, by arranging the overlapping portion in a relatively large space among a plurality of spaces formed by, for example, an uneven curved surface, the gap between the through hole and the elongated body can be sufficiently and effectively created. Can be filled.

In one embodiment, the sleeve member has a tapered surface on the outer surface of the integrated end portion that is integrated with the closing member in the axial direction so that the diameter gradually decreases toward the end edge side of the integrated end portion. It is preferable to have it.

According to this configuration, the tapered surface formed on the outer surface of the integrated end of the sleeve member exerts a guiding action when the sleeve member integrated with the closing member is inserted into the through hole of the compartment. Therefore, the sleeve member and the closing member can be easily inserted into the through hole of the compartment, and the workability can be improved from this point as well.

In one embodiment, the axial length of the closing member is longer than the axial length of the sleeve member, and the open side end portion of the closing member that is not integrated with the sleeve member is the sleeve. It is preferable that the member protrudes from the open side end portion that is not integrated with the closing member.

According to this configuration, it is possible to reduce the thickness of the closing member while securing a certain volume of the closing member. Therefore, even when the gap between the outer surface of the long body and the inner surface of the through hole is narrow, the closing member can be easily inserted together with the sleeve member into the gap.

As one embodiment, the sleeve member is further provided with a guide member inserted from the open side end side of the sleeve member, and the guide member and the closing member are provided at the opening side end portion of the closing member. It is preferable that is integrated.

According to this configuration, after the closing member is inserted into the through hole together with the sleeve member from one end side, the opening side end portion of the closing member that protrudes from the opening side end portion of the sleeve member and is not inserted is referred to the guide member. It can be easily inserted into the inner space of the sleeve member. By simply pushing in the guide member, the space formed by the uneven curved surface can be easily filled without directly operating the open side end of the closing member.

As one embodiment, it is preferable that the closing member is a pack member including a flexible bag body and a paste-like filler enclosed inside the bag body.

According to this configuration, since the bag body has flexibility and the filler is in the form of a paste, it is possible to impart deformable flexibility to the pack member as the closing member. Therefore, it is easy to fit into an uneven curved surface, and the gap between the through hole and the long body can be filled more reliably. Moreover, as described above, the pack member can be easily inserted into the through hole together with the sleeve member, so that the workability is also good. Since the filler is sealed inside the bag, the operator does not come into direct contact with the paste-like filler and does not cause discomfort to the operator.

In one embodiment, it is preferable that the closing member is a flexible sheet-like member.

According to this configuration, since the sheet-like member as the closing member is in the form of a flexible sheet, it is easy to wind on an uneven curved surface, and workability when filling the gap between the through hole and the long body is possible. Can be improved. Further, if the sheet-like member is flexible enough to be bent and has a certain degree of morphology, it can be prevented from being biased downward due to the action of gravity or the like. Therefore, the sheet-like member can be uniformly arranged in the gap between the through hole and the long body for a long period of time even after the construction.

As one aspect, it is preferable that a slit along the axial direction is provided at the open side end portion of the sheet-shaped member that is not integrated with the sleeve member.

According to this configuration, when the sheet-shaped member has a tubular shape, portions adjacent to both sides in the circumferential direction with respect to the slit (hereinafter, referred to as "slit adjacent portions") can be overlapped or separated from each other. can do. Therefore, the size of the opening at the open side end of the sheet-shaped member can be easily adjusted.

As one embodiment, it is preferable that the slit is formed in a V shape in which the width in the circumferential direction gradually increases toward the open side end portion.

According to this configuration, the slit adjacent portion is formed in a trapezoidal shape in which the width in the circumferential direction gradually narrows toward the open side end portion. Then, by bringing the "leg" corresponding parts of the two trapezoidal slits adjacent to each other in the circumferential direction into contact with each other, the diameter of the tubular sheet-shaped member is gradually reduced toward the open side end. Can be formed as such. Further, for example, when a plurality of slits are provided dispersedly in the circumferential direction, the size of the opening at the open side end portion is large by overlapping or separating the slit adjacent portions adjacent to any of the slits from each other. Fine adjustment of the slit can be easily performed. Therefore, even when the gap between the through hole and the long body is relatively wide, the gap can be appropriately filled.

The through-hole countermeasure structure according to the present invention is
It is a through-hole measure structure provided between a through-hole formed in a compartment of a building and a bundle of a plurality of long bodies inserted through the through-hole.
The above-mentioned through-hole countermeasure unit is inserted into the through-hole from the integrated end side on which the sleeve member and the closing member are integrated in the axial direction.
The non-integrated portion of the closing member that is not integrated with the sleeve member is arranged in a valley space extending over the outer surface of each of the elongated bodies adjacent to each other in a state of being deformed into a shape corresponding to the valley space. ing.

According to this configuration, the sleeve member and the closing member can be integrally inserted into the through hole of the compartment in a state where the closing member has a tubular shape along the inner surface of the sleeve member. Even when the closing member is flexible and soft, the closing member can be easily inserted deep into the through hole together with the sleeve member having a certain degree of rigidity. After inserting the through-hole countermeasure unit into the through-hole, the non-integrated portion of the closing member is easily deformed to fill the valley space extending to the outer surface of each of the elongated bodies adjacent to each other with the non-integrated portion. Can be done. Therefore, it is excellent in workability when applying the through-hole measures to the through-hole of the compartment, and the gap between the through-hole and the long body including the space formed by the uneven curved surface portion is formed. It is possible to realize a through-hole countermeasure structure that can be sufficiently filled.

Further features and advantages of the present invention will be further clarified by the following illustration of exemplary and non-limiting embodiments described with reference to the drawings.

Breaking perspective view of the fire prevention structure according to the first embodiment Cross section of fire prevention structure Perspective view of fire protection unit Development view of fire prevention unit Perspective view showing one aspect of the construction procedure of the fire prevention structure Perspective view showing one aspect of the construction procedure of the fire prevention structure Cross section of fire prevention structure Perspective view of the fire prevention unit according to the second embodiment Perspective view showing one aspect of the construction procedure of the fire prevention structure Cross section of fire prevention structure Perspective view of the fire prevention unit according to the third embodiment Development view of fire prevention unit Perspective view of another form of fire protection unit

[First Embodiment]
The first embodiment of the through-hole measure unit and the through-hole measure structure according to the present invention will be described with reference to the drawings. In the present embodiment, an example in which the through-hole measure unit and the through-hole measure structure according to the present invention are applied to the fire prevention measure unit 1 for the purpose of preventing the spread of fire and the fire prevention measure structure using the same will be described. The fire prevention unit 1 of the present embodiment includes a tubular sleeve member 20 inserted into a through hole 6H formed in a building compartment 6 and a flexible fireproof pack member 30. In the fire prevention measure unit 1, the fireproof pack member 30 is arranged so as to overlap the sleeve member 20 along the circumferential direction C, and the sleeve member 20 and the fireproof pack member are arranged at one end of the axial direction L of the sleeve member 20. It is characterized by the fact that it is integrated with 30. As a result, it is possible to improve the workability when applying fire prevention measures to the through hole 6H of the compartment 6, and the through hole 6H and the long body including the space formed by the uneven curved surface portion. The gap space S between 7 and 7 can be sufficiently filled. Hereinafter, the fire prevention measure unit 1 and the fire prevention measure structure of the present embodiment will be described in detail.

In the following description, the "axial direction L", the "circumferential direction C", and the "diameter direction" are defined with reference to the tubular sleeve member 20 inserted into the through hole 6H. That is, the direction in which the central axis of the sleeve member 20 extends is the axial direction L, the direction in which the sleeve member 20 orbits around the central axis is the circumferential direction C, and the direction extends in the direction orthogonal to the central axis of the sleeve member 20. The direction is radial. In addition, the terms related to the direction, dimensions, and the like used in the following description are concepts that include a state in which there is a difference due to an error (an error that is acceptable in manufacturing). Further, in the drawings referred to in the following description, the scale, the vertical and horizontal dimensional ratios, and the like may differ from those of the actual product from the viewpoint of facilitating the drawing and understanding.

In the present embodiment, the compartment 6 to which the fire prevention structure is applied is a fire-resistant and fire-proof structure that divides the space in the building into a plurality of room spaces. The partition 6 may be, for example, a wall portion that horizontally partitions a plurality of room spaces as shown in FIG. 1, or a floor (or ceiling; not shown) that vertically divides the plurality of room spaces. It may be. The compartment 6 may be a solid wall such as a reinforced concrete structure (RC) or a lightweight bubble concrete structure (ALC), or a hollow wall such as gypsum board. Of course, those having a structure other than these may be used as the compartment 6.

The compartment 6 is formed with a through hole 6H that penetrates the compartment 6 in the thickness direction (horizontal direction in the illustrated example). In this embodiment, a circular through hole 6H is formed. However, the specific shape of the through hole 6H may be, for example, an elliptical shape, a polygonal shape, or various other shapes without being limited to such a configuration.

A long body 7 is inserted through the through hole 6H of the compartment 6. The elongated body 7 has an elongated structure extending in one direction, such as a linear body, a tubular body, and a strip-shaped body. Examples of such a long body 7 include pipes for an air conditioner. In the present embodiment, the elongated body 7 includes a piping member 71 for circulating a refrigerant, a drain pipe 72 for discharging drain water, and an electric cable 73.

The piping member 71 has a fluid pipe 71A through which the refrigerant flows, and a covering material 71B that covers the periphery of the fluid pipe 71A. The fluid pipe 71A is, for example, a tubular member made of metal, and the covering material 71B is, for example, a heat insulating material made of synthetic resin, which is exteriorized by the fluid pipe 71A. The drain pipe 72 is, for example, a tubular member made of synthetic resin. The electric cable 73 is configured by providing an insulating coating material around the conductor wire. In the present embodiment, the plurality of elongated bodies 7 are inserted into the through hole 6H in a bundle. A bundle of long bodies 7 are densely arranged in the through hole 6H so that their outer surfaces are in contact with each other. Then, a valley space V is formed over the outer surfaces of the elongated bodies 7 adjacent to each other.

A fire prevention structure is provided in the gap space S between the through hole 6H and the plurality of elongated bodies 7. The gap space S is a space that extends in a radial gap between the inner surface of the through hole 6H and the outer surface of each of the plurality of elongated bodies 7. The fire prevention structure of the present embodiment is realized by using a fire prevention unit 1 including a tubular sleeve member 20 and a fireproof pack member 30 including a heat-expandable fireproof material 32.

The sleeve member 20 is formed in a tubular shape. The sleeve member 20 is formed in a tubular shape (cylindrical shape, elliptical tubular shape, polygonal tubular shape, etc.) corresponding to the inner surface shape of the through hole 6H. When the through hole 6H of the compartment 6 has a circular shape as in the present embodiment, the sleeve member 20 is formed in a cylindrical shape. In the present embodiment, the axial length L1 of the sleeve member 20 is substantially equal to the axial L thickness of the compartment 6 (see FIG. 2), and the circumferential length C1 of the sleeve member 20 is It is substantially equal to the peripheral length of the inner peripheral surface of the through hole 6H. As shown in FIG. 3, in the present embodiment, the sleeve member 20 is integrally formed and is divided at one position in the circumferential direction C over the entire area in the axial direction L. Then, the sleeve member 20 has a cylindrical shape in a state in which the divided end portions 20E on both sides in the circumferential direction C face each other in the circumferential direction C (a state in which they are abutted or a state in which they face each other with a slight gap). It is configured. The sleeve member 20 having a tubular shape under normal use is inserted (interpolated) into the through hole 6H along the inner surface of the through hole 6H formed in the building compartment 6. The sleeve member 20 is made of, for example, a resin material, a metal material, a ceramic material, or the like, and has a certain degree of rigidity and strength as a whole.

In the present embodiment, the sleeve member 20 is configured such that the divided end portions 20E are separated from each other in the circumferential direction C in a state where no external force acts to form a cylindrical shape having a diameter slightly larger than that of the through hole 6H. Has been done. In this case, when the sleeve member 20 is inserted into the through hole 6H, the divided end portions 20E are brought close to each other (typically abutting), the diameter of the sleeve member 20 is reduced, and then the sleeve member 20 is inserted into the through hole 6H. By doing so, the inner peripheral surface of the through hole 6H and the outer peripheral surface of the sleeve member 20 whose diameter is expanded again in the through hole 6H can be brought into close contact with each other, and the formation of a gap between the two can be effectively suppressed. be able to.

The sleeve member 20 includes a sleeve main body 21 and a flange 22 provided at one end (open side end 28 described later) of the sleeve main body 21 in the axial direction L. In the present embodiment, the sleeve main body 21 is formed as a curved plate-shaped portion that is curved in a cylindrical shape so that both end portions in the circumferential direction C face each other in the circumferential direction C. The flange portion 22 is integrally formed with the sleeve main body portion 21 in a state of extending radially outward from the sleeve main body portion 21. The flange portion 22 is provided over the entire circumference. A tapered surface 23 is formed on the outer surface of the end portion (integrated end portion 26, which will be described later) of the sleeve body portion 21 on the side opposite to the side on which the flange portion 22 is provided. The tapered surface 23 is formed on the outer surface of the integrated end portion 26 of the sleeve main body portion 21 so that the diameter gradually decreases toward the end edge 26e side of the integrated end portion 26.

The sleeve member 20 is also provided when the compartment 6 to which the fire protection structure is applied is a solid wall. Further, when the compartment 6 is a hollow wall, the sleeve member 20 is installed in a state where the long body 7 is already inserted into the through hole 6H of the compartment 6 made of the hollow wall. In this respect, the sleeve member 20 provided in the fire prevention unit 1 of the present embodiment is a general "penetration sleeve" that is installed in advance in the through hole 6H of the compartment 6 made of a hollow wall prior to the long body 7. The purpose of use and construction mode are different from those of the above. This point will be described later.

The fireproof pack member 30 is a member for closing the gap space S between the through hole 6H and the elongated body 7. The refractory pack member 30 has flexibility. The refractory pack member 30 of the present embodiment includes a flexible bag body 31 and a paste-like heat-expandable refractory material 32 sealed inside the bag body 31. In the present embodiment, the heat-expandable refractory material 32 corresponds to the "filler", and the refractory pack member 30 corresponds to the "pack member" and the "blocking member". The bag body 31 can be formed of, for example, a flammable plastic film (for example, a polyethylene film, a nylon film, etc.). The heat-expandable refractory material 32 is a member having heat-expandability (property of increasing volume by heating) and fire resistance (property of easily withstanding fire heat, property of having a high melting temperature and being hard to burn). As the heat-expandable refractory material 32, a known material can be used without particular limitation, and for example, a putty-like member (heat-expandable putty-like refractory material) can be used. However, the heat-expandable refractory material 32 of the present embodiment contains a plasticizer (water in the case of water, oil in the case of oil) more than usual, and is in the form of a paste as a whole.

The paste-like heat-expandable refractory material 32 is sufficiently softer than the known putty-like refractory material. The conventional putty-like refractory material has a consistency of about 50 to 80, whereas the paste-like heat-expandable refractory material 32 of the present embodiment has a consistency of, for example, about 80 to 400. By enclosing such a soft heat-expandable refractory material 32 in a flexible bag body 31 and using it, the refractory pack member 30 can be deformed relatively freely. Then, by deforming the refractory pack member 30, it is possible to easily fill the valley space V extending over the outer surface of each of the elongated bodies 7 adjacent to each other with the heat-expandable refractory material 32. The consistency of the paste-like heat-expandable refractory material 32 is preferably large from the viewpoint of facilitating the deformation of the refractory pack member 30. The consistency of the heat-expandable refractory material 32 is preferably, for example, about 150 to 390, and more preferably about 300 to 380. Of course, from the viewpoint of preventing sagging of the fireproof pack member 30 alone, for example, a heat-expandable refractory material 32 having a consistency of 300 or less may be used.

In the present specification, the “consistency” is defined in JIS K2220 5.3 (concentration test method) using a needle insertion degree meter specified in JIS K2235 5.4.2 (1). The needle and weight on the meter shall be replaced with a cone for measurement. More specifically, the above cone is vertically inserted into the sample for 5 seconds, the depth of the cone is measured in units of 0.1 mm, and the value obtained by multiplying this by 10 (dimensionless number) is defined as "condensation". To do. Here, the cone has the shape and dimensions shown in FIG. 9 of JIS K2235 5.10.2 (2), its mass is 102.5 ± 0.05 g, and the holder supporting the cone is JIS K2235 5.4. It is specified in .2 (3), and its mass is 47.5 ± 0.05 g.

The heat-expandable refractory material 32 expands in the thickness direction when heated to, for example, 200 ° C. or higher. The coefficient of thermal expansion of the refractory pack member 30 including the heat-expandable refractory material 32 may be, for example, 2 to 40 times.

The fireproof pack member 30 is arranged so as to overlap the sleeve member 20 along the circumferential direction C. The fireproof pack member 30 is arranged so as to be overlapped on the inner side in the radial direction of the sleeve member 20 over the entire area of the sleeve member 20 in the circumferential direction C. Further, in a state where the sleeve member 20 and the refractory pack member 30 are arranged so as to overlap each other, the sleeve main body 21 and the bag 31 are integrated at one end in the axial direction L. As an integrating means for integrating the sleeve body 21 and the bag 31, an adhesive (adhesive layer), heat fusion, a clip member, a hook member, an eyelet member, and the like are used without particular limitation. Can be done. In the present embodiment, the integrating means is continuously provided over the entire area of the sleeve member 20 in the circumferential direction C. In other words, the sleeve body 21 and the bag 31 are continuously integrated over the entire circumferential direction C of the sleeve member 20.

In the present embodiment, the length C2 in the circumferential direction C of the refractory pack member 30 is set longer than the length C1 in the circumferential direction C of the sleeve member 20. The fireproof pack member 30 is arranged so that one end of the sleeve member 20 and the circumferential direction C are aligned with each other. As a result, the fireproof pack member 30 of the present embodiment is attached to the end portion on the side opposite to the end portion on the side where the end portions in the circumferential direction C are aligned with the sleeve member 20 from the sleeve member 20 in the deployed state shown in FIG. It has a circumferential extension portion 33 that extends in the circumferential direction C and does not overlap with the sleeve member 20 in a radial direction. By having such a circumferential extension 33, both ends of the refractory pack member 30 in the circumferential direction C can overlap each other in the tubular assembled state shown in FIG. That is, in the assembled state of the tubular shape, the sleeve member 20 has a cylindrical shape in which the divided end portions 20E face each other and have no overlapping portion, whereas the refractory pack member 30 has a circumferential extension portion 33. Depending on the presence, both ends of the circumferential direction C become cylindrical so as to overlap each other.

Further, in the present embodiment, the length L2 in the axial direction L of the refractory pack member 30 is set longer than the length L1 in the axial direction L of the sleeve member 20. The fireproof pack member 30 is arranged so that the sleeve member 20 and one end (integrated end portions 26, 36) in the axial direction L are aligned. As a result, the open side end 38 of the refractory pack member 30 that is not integrated with the sleeve member 20 protrudes from the open side end 28 of the sleeve member 20 that is not integrated with the fire pack member 30. There is. That is, the refractory pack member 30 of the present embodiment has an end portion (open side end portion 38) that is opposite to the integrated end portion 36 and is not integrated with the sleeve member 20. It has an axially extending portion 34 extending from the sleeve member 20 in the axial direction L and not overlapping the sleeve member 20 in a radial direction. By having such an axially extending portion 34, it is possible to reduce the thickness of the refractory pack member 30 while securing a certain amount of the heat-expandable refractory material 32 sealed inside. ..

Hereinafter, the construction procedure of the fire prevention measure structure realized by using the fire prevention measure unit 1 of the present embodiment will be described. First, as shown in FIG. 5, a bundle of long bodies 7 is arranged outside the through hole 6H in a state where a bundle of a plurality of long bodies 7 is arranged in the through hole 6H formed in the compartment 6 of the building. The fire prevention unit 1 is arranged so as to surround the body 7. At this time, the fire prevention unit 1 is arranged around a bundle of long bodies 7 in a state where the divided end portions 20E of the sleeve member 20 are separated from each other and expanded. At that time, fire prevention measures are taken so that the end portion (integrated end portion 26, 36) in which the sleeve member 20 and the fireproof pack member 30 are integrated in the axial direction L is located on the compartment 6 side. Place unit 1.

After that, the divided end portions 20E are brought close to each other and face each other in the circumferential direction C to form the sleeve member 20 into a tubular shape. At that time, both ends of the fireproof pack member 30 in the circumferential direction C are arranged so as to be arranged so that the circumferential extension portions 33 of the fireproof pack member 30 are arranged in the radial direction. In this state, the refractory pack member 30 is arranged so that the circumferential extension portion 33 is arranged at the position of the largest valley space V among the plurality of valley spaces V extending over the outer surfaces of the elongated bodies 7 adjacent to each other. It is preferable to adjust the position of the circumferential direction C. In this way, the maximum valley space V that requires a relatively large amount of the heat-expandable refractory material 32 is doubly overlapped, and the heat-expandable refractory material of the circumferential extension portion 33 is arranged. 32 is enough to fill. In addition, without being limited to such a configuration, from the beginning, the fire prevention measure unit 1 is arranged around the bundle of long bodies 7 while the circumferential extension portion 33 is arranged at the position of the largest valley space V. By doing so, the phase of the refractory pack member 30 may be adjusted.

Next, the fire prevention measure unit 1 is inserted into the through hole 6H from the integrated end 26, 36 side on which the sleeve member 20 and the fireproof pack member 30 are integrated in the axial direction L. At this time, even if the refractory pack member 30 is formed by including the highly dense paste-like heat-expandable refractory material 32 and is soft, the gap space between the through hole 6H and the plurality of elongated bodies 7 is provided. The refractory pack member 30 can be easily inserted into the S together with the sleeve member 20 having a certain rigidity or higher. Therefore, it is possible to improve the workability when applying fire prevention measures to the through hole 6H of the compartment 6. Since a tapered surface 23 is formed on the outer surface of the integrated end portion 26 of the sleeve main body portion 21, one end of the fire prevention measure unit 1 is easily guided to the inside of the through hole 6H by the guiding action of the tapered surface 23. be able to. Since the open side end 28 of the sleeve body 21 is provided with an outward flange portion 22 to increase its thickness, it is easy to push the fire prevention unit 1 in the axial direction L.

The pushing operation of the fire prevention measure unit 1 is carried out until the flange portion 22 comes into contact with the surface of the compartment 6 (see FIGS. 2 and 6). In this state, the integrated ends 26, 36 of the sleeve member 20 and the refractory pack member 30 reach the positions of the surfaces on the opposite sides of the compartment 6. At this position, the refractory pack member 30 is integrated with the sleeve member 20 over the entire area in the circumferential direction C, so that the refractory pack member 30 contains a highly dense paste-like heat-expandable refractory material 32. Even when it is formed and soft, the occurrence of sagging can be effectively suppressed. In particular, even when the refractory pack member 30 containing the thermally expandable refractory material 32 having a consistency of 300 or more is used, the occurrence of sagging can be effectively suppressed. Therefore, the shape retention of the refractory pack member 30 can be maintained for a long period of time.

After that, as shown in FIG. 6, the axial extension portion 34 of the fireproof pack member 30 protruding from the open side end portion 28 of the sleeve member 20 in the axial direction L is pushed into the through hole 6H. Then, the axial extension portion 34, which is a region including the open side end 38 of the refractory pack member 30, and is also a part of the non-integrated portion 37 which is not integrated with the sleeve member 20 of the refractory pack member 30. , Arranged in the valley space V over the outer surface of each of the elongated bodies 7 adjacent to each other. At that time, as shown in FIG. 7, the non-integrated portion 37 including the axially extending portion 34 of the refractory pack member 30 is arranged in the valley space V in a state of being deformed into a shape corresponding to the valley space V. .. Since the refractory pack member 30 is formed by including a highly dense paste-like heat-expandable refractory material 32 and is very soft, it is easy to create a plurality of valley spaces V formed on the outer surface of a bundle of long bodies 7. Can be made to follow the shape. Therefore, it is possible to sufficiently fill the gap space S between the through hole 6H and the elongated body 7 including the plurality of valley spaces V. At this time, since the flange portion 22 is in contact with the surface of the compartment 6, the fire prevention measure unit 1 does not move in the axial direction L due to the pushing operation of the refractory pack member 30 during the pushing operation.

When a fire breaks out in a building, the ambient temperature rises due to the heat of the flame, the covering material 71B constituting the long body 7 melts and burns, and the gap space S between the through hole 6H and the long body 7 is created. There is a possibility of further expansion. Even in this case, the heat-expandable refractory material 32 contained in the fire-resistant pack member 30 thermally expands as the ambient temperature rises, and fills the space created by the melting and combustion of the covering material 71B (in other words, in other words. The increase in the gap volume can be compensated for). In particular, in the present embodiment, the valley space V is sufficiently filled by making the soft fireproof pack member 30 follow the shape of the valley space V, so that sufficient fire prevention performance is imparted. Therefore, by using the fire prevention measure unit 1 of the present embodiment, it is possible to realize a fire prevention measure structure having excellent workability and providing sufficient fire prevention performance.

[Second Embodiment]
A second embodiment of the through-hole measure unit and the through-hole measure structure according to the present invention will be described with reference to the drawings. This embodiment is also an example in which the through-hole measure unit and the through-hole measure structure according to the present invention are applied to the fire prevention measure unit 1 and the fire prevention measure structure using the same. In the present embodiment, the specific configuration of the fire prevention measure unit 1 is partially different from that of the first embodiment. Hereinafter, the differences between the fire prevention unit 1 and the fire prevention structure of the present embodiment will be described mainly from the first embodiment. It should be noted that the points not particularly specified are the same as those in the first embodiment, and the same reference numerals are given and detailed description thereof will be omitted.

As shown in FIG. 8, the fire prevention measure unit 1 of the present embodiment further includes a guide member 40 in addition to the tubular sleeve member 20 and the fireproof pack member 30 containing the heat-expandable fireproof material 32. .. The guide member 40 is preferably made of, for example, a resin material, a metal material, a ceramic material, or the like, and has a certain degree of rigidity and strength as a whole.

The guide member 40 is integrated with the bag body 31 of the refractory pack member 30 at the open side end 38 of the refractory pack member 30. The guide member 40 is integrated with the refractory pack member 30 in a state of being arranged radially outside the refractory pack member 30. In the present embodiment, the guide member 40 and the refractory pack member 30 are continuously integrated over the entire area in the circumferential direction C. The guide member 40 is integrated with the refractory pack member 30 in a state of overlapping with the axially extending portion 34 of the refractory pack member 30 in the radial direction. The sleeve member 20 and the guide member 40 are integrated with the refractory pack member 30 at ends on the same side of the refractory pack member 30 in the radial direction and opposite to each other in the axial direction L.

In the present embodiment, the guide member 40 has a guide main body 41 having a shape corresponding to the shape of the sleeve main body 21 of the sleeve member 20, and a flange portion provided at an end portion on the side integrated with the refractory pack member 30. Including 42 and. In the present embodiment, the guide main body 41 is formed in a cylindrical shape having an outer diameter similar to the inner diameter of the cylindrical sleeve main body 21. The flange portion 42 is integrally formed with the guide main body portion 41 in a state of extending inward in the radial direction from the guide main body portion 41.

The length of the guide member 40 in the circumferential direction C may be set to be about the same as the length C1 of the sleeve member 20 in the circumferential direction C (see FIG. 8), or may be set longer than that. good. In the former case, the guide member 40 has a tubular shape in a state where the ends of the guide member 40 in the circumferential direction C face each other in the circumferential direction C (in a state of being abutted or facing each other with a slight gap). Eggplant. In the latter case, the guide member 40 has a tubular shape with the ends of the guide member 40 in the circumferential direction C being overlapped with each other.

The length of the guide member 40 in the axial direction L may be set to be the same as or shorter than the length of the axial extension portion 34 of the refractory pack member 30 in the axial direction (see FIG. 8). Alternatively, it may be set longer than the length of the axial extension portion 34 in the axial direction L. In the former case, a tapered surface may be formed on the outer surface of the end portion of the guide main body portion 41 opposite to the side on which the flange portion 42 is provided, so that the diameter gradually decreases toward the end edge side.

In order to realize the fire prevention structure by using the fire prevention unit 1 of the present embodiment, the entire fire prevention unit 1 is pushed into the through hole 6H of the compartment 6 in the same manner as in the first embodiment, and then penetrated. With the sleeve member 20 held in the hole 6H, a second pushing operation for the guide member 40 is performed as shown in FIG. By this second pushing operation, the tubular guide member 40 is inserted into the sleeve member 20 from the open side end 28 side of the sleeve member 20. The guide member 40 is inserted into the sleeve member 20 along the axial direction L, with the end portion of the guide main body portion 41 opposite to the side on which the flange portion 42 is provided as a head. At this time, since the flange portion 42 facing inward is provided at the rear end of the guide main body portion 41 in the insertion direction to increase the thickness thereof, the second pushing operation can be easily performed.

Since the guide member 40 is integrated with the open side end 38 of the fireproof pack member 30, the fireproof member 40 protrudes from the open side end 28 of the sleeve member 20 and is not inserted in the state after the first pushing operation. The axially extending portion 34 of the pack member 30 is inserted into the inner space of the sleeve member 20 together with the guide member 40 in accordance with the second pushing operation. Therefore, the guide member 40 can be inserted into the inner space of the sleeve member 20 without directly operating the open side end 38 of the refractory pack member 30 simply by pushing the guide member 40. After that, the non-integrated portion 37 of the refractory pack member 30 is pushed into the valley space V extending over the outer surface of each of the elongated bodies 7 adjacent to each other. Since the refractory pack member 30 is formed by including a highly dense paste-like heat-expandable refractory material 32 and is very soft, it is easy to create a plurality of valley spaces V formed on the outer surface of a bundle of long bodies 7. Can be made to follow the shape. Therefore, it is possible to sufficiently fill the gap space S between the through hole 6H and the elongated body 7 including the plurality of valley spaces V.

In the present embodiment, the fireproof pack member 30 is held inside the sleeve member 20 in the radial direction at the position of the end portion of the sleeve member 20 and the fireproof pack member 30 opposite to the integrated ends 26 and 36. It is integrated with the member 40 over the entire area in the circumferential direction C. As described above, since the refractory pack member 30 is integrated with the other tubular members in the entire circumferential direction C at each of both ends in the axial direction L, the occurrence of sagging is more effectively suppressed. can do. Therefore, even when the refractory pack member 30 is formed by including a highly dense paste-like heat-expandable refractory material 32 and is soft, the shape retention of the refractory pack member 30 is maintained for a long period of time. Can be done.

[Third Embodiment]
A third embodiment of the through-hole measure unit and the through-hole measure structure according to the present invention will be described with reference to the drawings. This embodiment is also an example in which the through-hole measure unit and the through-hole measure structure according to the present invention are applied to the fire prevention measure unit 1 and the fire prevention measure structure using the same. In the present embodiment, the member integrated with the sleeve member 20 and inserted into the through hole 6H together with the sleeve member 20 is different from the first and second embodiments. Hereinafter, the differences between the fire prevention unit 1 and the fire prevention structure of the present embodiment will be described mainly from the first embodiment. It should be noted that the points not particularly specified are the same as those in the first embodiment, and the same reference numerals are given and detailed description thereof will be omitted.

As shown in FIG. 11, the fire prevention measure unit 1 of the present embodiment includes a tubular sleeve member 20 and a fireproof sheet member 50 mainly composed of a heat-expandable fireproof material 51B. The fireproof sheet member 50 is a member for closing the gap space S between the through hole 6H and the elongated body 7, and is formed in a sheet shape (thin plate shape). In this embodiment, the refractory sheet member 50 corresponds to the "sheet-like member" and the "closing member". The refractory sheet member 50 of the present embodiment is composed of a heat-expandable refractory sheet 51.

The heat-expandable refractory sheet 51 is composed of a base sheet 51A, a heat-expandable refractory material 51B, and a coating sheet 51C laminated on each other. The substrate sheet 51A can be made of, for example, an aluminum wallif, an aluminum glass cloth, or a metal thin film sheet such as aluminum craft. The heat-expandable refractory material 51B is a member having both heat-expandability and fire resistance, and can be composed of, for example, a resin composition containing a heat-expandable base material, an inorganic filler, and a resin component. Examples of the heat-expandable base material include heat-expandable graphite, alkali metal silicate, and uncalcined vermiculite powder. Examples of the inorganic filler include various inorganic fillers. Examples of the resin component include ethylene / propylene / diene rubber, ethylene vinyl acetate copolymer, and butyl rubber. The heat-expandable refractory material 51B expands in the thickness direction when heated to, for example, 200 ° C. or higher. The coating sheet 51C can be made of a resin film such as a polyethylene film or a nylon film. The substrate sheet 51A may be made of a resin film, and the covering sheet 51C may be made of a metal thin film sheet.

The heat-expandable refractory sheet 51 is formed so as to have a predetermined thickness (for example, 1.5 mm to 10 mm) as a whole, mainly according to the thickness of the heat-expandable refractory material 51B. Further, the heat-expandable refractory sheet 51 is formed so as to have flexibility (property of bending) mainly depending on the constituent material of the heat-expandable refractory material 51B. Although the refractory sheet member 50 composed of the heat-expandable refractory sheet 51 has flexibility, it is more flexible than the refractory pack member 30 described in the first embodiment and the second embodiment. The degree of is much lower. The refractory sheet member 50 is formed so as to have a certain degree of morphology while having flexibility (flexibility).

The fireproof sheet member 50 is arranged so as to overlap the sleeve member 20 along the circumferential direction C. Further, in a state where the sleeve member 20 and the fireproof sheet member 50 are arranged so as to overlap each other, the sleeve member 20 and the fireproof sheet member 50 are integrated at one end (integrated end portion 56) in the axial direction L. .. When the refractory sheet member 50 having a predetermined thickness is used as the closing member as in the present embodiment, the integrating means is composed of, for example, a hook member locked in a through hole formed in the refractory sheet member 50. be able to. In this case, it is preferable that the plurality of hook members are dispersed in the circumferential direction C at one end of the sleeve member 20 in the axial direction L.

The length of the fireproof sheet member 50 in the circumferential direction C is set to be longer than the length of the sleeve member 20 in the circumferential direction C. Then, the fireproof sheet member 50 extends from the sleeve member 20 in the circumferential direction C at one end in the circumferential direction C in the deployed state shown in FIG. 12, and does not overlap with the sleeve member 20 in the radial direction. Has. Further, the length of the fireproof sheet member 50 in the axial direction L is set to be longer than the length of the sleeve member 20 in the axial direction L. Then, the fireproof sheet member 50 is attached to the end portion (open side end portion 58) that is opposite to the integrated end portion 56 and is not integrated with the sleeve member 20 from the sleeve member 20. It has an axially extending portion 54 that extends in the axial direction L and does not overlap with the sleeve member 20 in a radial direction.

As shown in FIG. 12, in the present embodiment, a plurality of slits 52 along the axial direction L are provided at the open side end portion 58 of the refractory sheet member 50 in a circumferential direction C. Here, "along the axial direction L" means a state in which the extending direction when the slit 52 is viewed as a whole is parallel to the axial direction L (a state in which the slit 52 is slightly inclined to the extent that it can be regarded as substantially parallel). Including). The length of the slit 52 in the axial direction L is shorter than the length of the refractory sheet member 50 in the axial direction L. The fireproof sheet member 50 is divided into a plurality of slit-to-slit portions 51P arranged in the circumferential direction C by the plurality of slits 52. The plurality of slit-to-slit portions 51P are integrated so as to be seamlessly continuous on one end side (integrated end portion 56 side) in the axial direction L. The two slit-to-slit portions 51P adjacent to each other in the circumferential direction C are also portions adjacent to both sides of the circumferential direction C with respect to the slits 52 provided between them, and are also referred to as "slit-adjacent portions" in this sense. be able to.

The formation mode of the slit 52 may be arbitrary. The slit 52 may be formed so as to have a constant circumferential width regardless of the position in the axial direction L, or may be formed so that the circumferential width differs depending on the position in the axial direction L. In the present embodiment, the slit 52 has a V shape (more specifically, the bottom portion 52b) so that the width in the circumferential direction gradually increases from the bottom portion 52b on the integrated end portion 56 side toward the open side end portion 58. It is formed in a V shape that is line-symmetric with respect to a virtual plane passing through a position in the circumferential direction.

The slit-to-slit portion 51P is formed in a trapezoidal shape. The slit-to-slit portion 51P has a trapezoidal shape in which the width in the circumferential direction gradually narrows from the base end portion on the integrated end portion 56 side toward the open side end portion 58 according to the shape (V shape) of the slit 52 (this example). Isosceles trapezoidal shape). In this case, in each slit-to-slit portion 51P, the outer surface of the open side end portion 58 is a portion corresponding to the "upper bottom" of the trapezoidal slit-to-slit portion 51P, and each side surface facing the slit 52 is a portion corresponding to a "leg". Become.

Using the fireproof sheet member 50 having such a configuration, the side surfaces (corresponding to "legs") of two trapezoidal slits 51P adjacent to each other in the circumferential direction C are brought into contact with each other to form a tubular fireproof. The seat member 50 can be formed in a tapered shape so that the diameter gradually decreases toward the open side end portion 58. Then, the open side end 58 of the tubular refractory sheet member 50 can be made smaller in diameter than the sleeve member 20, and preferably the open side end 58 covers the outer periphery of the long body 7 without a gap. Can be done. Therefore, even when the gap space S between the through hole 6H and the elongated body 7 is relatively wide in the radial direction, the gap space S can be appropriately filled.

Depending on the relationship between the size of the refractory sheet member 50 (particularly the size of the opening on the open side end 58 side) and the size of the long body 7, the slit-to-slit portions 51P adjacent to each other in the circumferential direction C are partially separated from each other. It is preferable to arrange them in layers or to arrange them apart from each other. For example, when the elongated body 7 is relatively small, the open side end 58 of the tubular refractory sheet member 50 has a smaller diameter by arranging the ends of the slit-to-slit portion 51P in the circumferential direction C so as to overlap each other. The open side end 58 can be aligned with the outer surface of the elongated body 7. Further, for example, when the long body 7 is relatively large, the tubular fireproof sheet member 50 can be arranged by arranging the ends of the slit-to-slit portion 51P in the circumferential direction C apart from each other without contacting each other. The diameter of the open side end portion 58 can be increased so as to follow the outer surface of the elongated body 7. At that time, it is not always necessary to finely adjust the size of the opening on the opening side end 58 side over the entire circumference, and it corresponds to the arrangement state of the bundle of long bodies 7 in the circumferential direction. It may be performed differently depending on the position of.

[Other Embodiments]
(1) In each of the above embodiments, a configuration in which the sleeve member 20 is integrally formed has been described as an example. However, the structure is not limited to such a structure, and for example, the sleeve member 20 may be composed of a plurality of sleeve divided bodies having a tubular shape as a whole. Further, as shown in FIG. 13, for example, the sleeve member 20 may be formed in a tubular shape having a penetrating portion (lightening portion) 24 penetrating in the thickness direction thereof. In this way, when the refractory pack member 30 is used as the closing member, when the non-integrated portion 37 of the refractory pack member 30 is pushed in and deformed, at least a part of the non-integrated portion 37 is penetrated. It can be arranged so as to come into contact with the inner surface of the through hole 6H through 24. Therefore, even if there is a minute gap between the inner surface of the through hole 6H and the outer surface of the sleeve member 20, the gap space between the through hole 6H and the elongated body 7 including the minute gap is included. S can be sufficiently filled. Further, when the heat-expandable refractory material 32 is heated, the expanded heat-expandable refractory material 32 is pressed against the inner surface of the through hole 6H through the through portion 24. Therefore, the gap space S between the through hole 6H and the elongated body 7 can be reliably shielded, including a minute gap that may exist between the inner surface of the through hole 6H and the outer surface of the sleeve member 20. The same applies when the fireproof sheet member 50 is used instead of the fireproof pack member 30 as in the third embodiment.

(2) In each of the above embodiments, it has been mainly assumed that the sleeve member 20 has a tubular shape corresponding to the inner surface shape of the through hole 6H from the beginning. However, without being limited to such a configuration, the sleeve member 20 may have a tubular shape at least when inserted into the through hole 6H, and may have another shape such as a flat plate shape at the stage before insertion. It may be.

(3) In each of the above embodiments, a configuration in which the sleeve member 20 has a flange portion 22 extending over the entire circumference at the open side end portion 28 of the sleeve main body portion 21 has been described as an example. However, without being limited to such a configuration, for example, the flange portion 22 may be provided intermittently along the circumferential direction. Alternatively, the sleeve member 20 may not be provided with the flange portion 22.

(4) In each of the above embodiments, a configuration in which the sleeve member 20 has a tapered surface 23 on the outer surface of the sleeve main body 21 on the integrated end 26 side has been described as an example. However, the sleeve member 20 does not have to be provided with the tapered surface 23 without being limited to such a configuration.

(5) In the first and second embodiments described above, a configuration in which the refractory pack member 30 has a circumferential extension 33 on only one side of the circumferential direction C has been described as an example. However, without being limited to such a configuration, the refractory pack member 30 may have circumferential extending portions 33 on both sides of the circumferential direction C. However, one of the two circumferential extending portions 33 is sized so as not to prevent the sleeve member 20 from forming a tubular shape with the divided end portions 20E facing each other in the circumferential direction C. The same applies when the fireproof sheet member 50 is used instead of the fireproof pack member 30 as in the third embodiment.

(6) In the first and second embodiments described above, an example is a configuration in which the refractory pack member 30 has both a circumferential extension 33 and an axial extension 34 that do not overlap with the sleeve member 20 in the deployed state. Explained as. However, without being limited to such a configuration, for example, the refractory pack member 30 may not have at least one of the circumferential extending portion 33 and the axial extending portion 34. The same applies when the fireproof sheet member 50 is used instead of the fireproof pack member 30 as in the third embodiment.

(7) In the first and second embodiments described above, a configuration using a refractory pack member 30 in which only a paste-like heat-expandable refractory material 32 is enclosed inside the bag 31 is mainly described. did. However, without being limited to such a configuration, as the fireproof pack member 30, in addition to the paste-like heat-expandable fireproof material 32 inside the bag body 31, for example, inorganic fibers or the like as a non-paste-like filler Those containing other components such as inorganic spheres may be used.

(8) In the first and second embodiments described above, the sleeve member 20 and the refractory pack member 30 are integrated only at the peripheral edge of the bag 31 (an example of "one end in the axial direction L"). The explanation was made mainly assuming the configuration. However, without being limited to such a configuration, as long as a sufficiently large non-integrated portion 37 is secured in the refractory pack member 30, the sleeve member 20 and the refractory pack member 30 are within a predetermined range (for example, a shaft). It may be integrated over the region from one end of the direction L to the central portion). Alternatively, the sleeve member 20 and the refractory pack member 30 may be integrated at a plurality of locations including one end in the axial direction L.

(9) In the first and second embodiments described above, a configuration in which a single sleeve member 20 and a single refractory pack member 30 are integrated has been described as an example. However, without being limited to such a configuration, for example, a plurality of refractory pack members 30 are provided for one sleeve member 20, and the one sleeve member 20 and the plurality of refractory pack members 30 are integrated. Is also good. In this case, the pair of refractory pack members 30 adjacent to each other in the circumferential direction C may be arranged in a state where the ends in the circumferential direction C are overlapped with each other. The same applies when the fireproof sheet member 50 is used instead of the fireproof pack member 30 as in the third embodiment.

(10) In the second embodiment, the configuration in which the guide member 40 is integrally formed has been described as an example. However, the present invention is not limited to such a configuration, and for example, the guide member 40 may be composed of a plurality of guide divided bodies having a tubular shape as a whole. Further, the guide member 40 may be formed in a tubular shape having, for example, a penetrating portion (lightening portion) penetrating in the thickness direction thereof. Alternatively, the guide member 40 may be formed by using a core material such as a wire and assembling the core material as a whole into a tubular shape or an annular shape.

(11) In the second embodiment, the configuration in which the refractory pack member 30 and the guide member 40 are integrated over the entire circumferential direction C has been described as an example. However, without being limited to such a configuration, for example, the refractory pack member 30 and the guide member 40 may be intermittently integrated in the circumferential direction C.

(12) In the third embodiment, a configuration in which the refractory sheet member 50 is formed to have a predetermined thickness in order to have a certain degree of morphology has been described as an example. However, the fireproof sheet member 50 may be formed in the form of a thin film sheet having a thickness of 1 mm or less, for example, without being limited to such a configuration.

(13) In the third embodiment, a configuration in which a plurality of slits 52 along the axial direction L are dispersedly provided in the circumferential direction C on the open side end portion 58 of the refractory sheet member 50 will be described as an example. .. However, the fireproof sheet member 50 may be provided with only one slit 52 without being limited to such a configuration.

(14) In the third embodiment, a configuration in which a V-shaped slit 52 is formed in the refractory sheet member 50 has been described as an example. However, the slit 52 may be formed in a linear shape, for example, without being limited to such a configuration. Further, the slit 52 does not necessarily have to be formed from the beginning, and the refractory sheet member 50 is provided with a structure (referred to as “slit precursor portion”) for easily forming the slit 52, and is required at the time of construction. Depending on the situation, the slit 52 may be configured to appear after the fact. The slit precursor portion can be composed of, for example, a sewing machine wire or a half-cut wire. The refractory sheet member 50 having such a slit precursor portion can be regarded as "providing the slit 52" even if the slit 52 is not actually exposed. The slit 52 (including the slit precursor portion) does not necessarily have to be formed in the refractory sheet member 50.

(15) In each of the above embodiments, a fire prevention structure (fire prevention unit 1) is provided for a gap space S between a through hole 6H formed in a building compartment 6 and a bundle of a plurality of long bodies 7. Explained as an example. However, the present invention is not limited to such a configuration, and the same applies to, for example, a fire prevention measure structure (fire prevention measure unit 1) for the gap space S between the through hole 6H and one elongated body 7. The invention can be applied.

(16) In each of the above embodiments, a fireproof measure including a fireproof pack member 30 in which the heat-expandable fireproof material 32 is sealed inside the bag 31 or a fireproof sheet member 50 mainly composed of the heat-expandable fireproof material 51B. The fire protection structure using the unit 1 has been described as an example. However, the present invention is not limited to such a configuration, and for example, for a through-hole measure structure (through-hole measure unit) for simply filling the through-hole 6H formed in the refractory or non-fire-resistant compartment 6. , The present invention can be applied. In this case, as the closing member, for example, a pack member including a bag body 31 and a non-fireproof filler such as a fiber material or a putty material enclosed inside the bag body 31 may be used. In these cases, depending on the properties of the filler enclosed inside (for example, when there is no concern about leakage), the bag 31 may be made of a fiber sheet (for example, a woven fabric or a non-woven fabric). The material of is arbitrary. Alternatively, a filler made of a fiber material having a certain shape and flexibility (for example, an inorganic fiber material such as rock wool, ceramic wool, and glass wool) can be used as a closing member as it is without being sealed in the bag 31. You may use it. In this case, a filler made of a fiber material or the like may be formed into, for example, a sheet shape or a rectangular parallelepiped shape. Even in the through-hole countermeasure unit provided with such a closing member integrated with the sleeve member 20, similarly, the workability is excellent and the gap space S between the through-hole 6H and the long body 7 is provided. It is possible to realize a through-hole countermeasure structure that can be sufficiently filled.

It should be noted that the configurations disclosed in each of the above-described embodiments (including the above-mentioned embodiments and other embodiments; the same shall apply hereinafter) are applied in combination with the configurations disclosed in other embodiments as long as there is no contradiction. It is also possible to do.

It should be understood that with respect to other configurations, the embodiments disclosed herein are exemplary in all respects and the scope of the invention is not limited thereto. Those skilled in the art will easily understand that modifications can be made as appropriate without departing from the spirit of the present invention. Therefore, another embodiment modified without departing from the spirit of the present invention is naturally included in the scope of the present invention.

1 Fire prevention unit (through hole measure unit)
6 Section 6H Through hole 7 Long body 20 Sleeve member 22 Flange part 23 Tapered surface 26 Integrated end part 26e End edge 28 Open side end part 30 Fireproof pack member (blocking member, pack member)
31 Bag body 32 Thermal expansion refractory material (filler)
33 Circumferential extension 34 Axial extension 36 Integrated end 37 Non-integrated part 38 Open side end 40 Guide member 50 Fireproof sheet member (blocking member, sheet-like member)
52 Slit 58 Open side end S Gap space V Valley space L Axial direction C Circumferential direction

Claims (1)

A tubular sleeve member inserted into a through hole formed in a building compartment,
With a flexible closing member,
A through-hole measure in which the closing member is arranged so as to overlap the sleeve member along the circumferential direction, and the sleeve member and the closing member are integrated at one end in the axial direction of the sleeve member. unit.

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