JP2017070199A - Through-hole protection unit and through-hole protection structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a through-hole protection 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 surfaces.SOLUTION: A through-hole protection 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 a 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.

  Generally, the internal space of a building is partitioned into a plurality of room spaces by partitions such as walls, floors, and ceilings. In order to arrange a long body such as a pipe or a cable over the plurality of chamber spaces, for example, a through hole may be formed in the partition body and the long body may be inserted through the through hole. In this case, post-processing such as filling the gap between the through hole and the elongated body with a filler is necessary. For example, in order to prevent the spread of fire when a fire occurs in a certain room space, it is necessary to take fire prevention measures in the gap between the through hole and the elongated body.

  For example, Japanese Patent Laying-Open No. 2005-73357 (Patent Document 1) discloses a fire protection structure using a pack member including a paste-like thermally 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 receiving device installed in the through hole of the partition body, and then pushed into the through hole (receiving device). Then, the closing member fills a 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, the closing member of Patent Document 1 has the inner surface of the bag body in close contact with the highly-consistent, heat-expandable refractory material, and can be freely deformed as it is.

  Since the closure member of Patent Document 1 has flexibility that can be deformed, there is an advantage that it is easy to adapt to a curved surface with unevenness, but there is a disadvantage that the pushing operation to the through hole of the partition is not easy. It was. In particular, when the gap between the outer surface of the elongated body and the inner surface of the through hole or the receiver is narrow, the sliding force is relatively increased while the pressing force when pushing the closing member is dispersed. In some cases, this push-in operation takes time and effort.

JP 2005-73357 A

  Excellent workability when performing post-processing on the through-holes of the partition body, and sufficiently fills the gap between the through-holes and the long body including the space formed by the curved surface part with unevenness. There is a need for technology that can.

The through hole measure unit according to the present invention is:
A cylindrical sleeve member inserted into a through-hole formed in a partition of a building;
A closure member having flexibility,
The closing member is disposed 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 partition body in a state where the closing member forms a cylinder 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 into the through hole together with the sleeve member having a certain degree of rigidity. After being inserted into the through-hole, a portion of the closing member that is not integrated with the sleeve member (hereinafter referred to as “non-integrated portion”) is easily deformed to form an uneven curved surface. The space can be filled with non-integrated parts. Therefore, by using the through-hole measure unit of this configuration, it is possible to improve the workability when performing post-processing on the through-holes of the partition body, and also to provide a space formed by uneven curved surface portions. Including the gap between the through hole and the elongated body can be sufficiently filled.

  Hereinafter, the suitable aspect of the through-hole measure unit which concerns on this invention is demonstrated. However, the scope of the present invention is not limited by the preferred embodiments described below.

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

  According to this configuration, when the closing member is cylindrical along the inner surface of the sleeve member, both end portions in the circumferential direction of the closing member can overlap each other. Therefore, even when the non-integrated portion of the closing member is deformed, it is easy to dispose the closing member without interruption over the entire circumference. In addition, the circumferential portion where the closing members overlap each other has a larger amount of the closing member than the other portions. For this reason, 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 obtained. Can be filled.

  As one aspect, a taper surface that gradually decreases in diameter toward the end edge side of the integrated end portion on the outer surface of the integrated end portion of the sleeve member that is integrated with the closing member in the axial direction. It is suitable to have.

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

  As one aspect, the length of the closing member in the axial direction is longer than the length of the sleeve member in the axial direction, and the opening-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 amount of the closing member. Therefore, even when the gap between the outer surface of the elongated body and the inner surface of the through hole is narrow, the closing member can be easily inserted into the gap together with the sleeve member.

  As one aspect, the apparatus further comprises a guide member inserted from the open side end portion side of the sleeve member with respect to the sleeve member, and the guide member and the close member at the open side end portion of the close member Are preferably integrated.

  According to this configuration, after the closing member is inserted into the through hole from the one end side together with the sleeve member, the opening side end portion of the closing member protruding from the opening side end portion of the sleeve member and not inserted is guided to the guide member. At the same time, it can be easily inserted into the inner space of the sleeve member. By simply pushing the guide member, the space formed by the curved surface with unevenness can be easily filled without directly operating the open end of the closing member.

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

  According to this configuration, since the bag body has flexibility and the filling material is in a paste form, the flexible flexibility can be imparted to the pack member as the closing member. Therefore, it is easy to adapt to a curved surface with unevenness, and the gap between the through hole and the elongated body can be filled more reliably. In addition, since the pack member can be easily inserted into the through hole together with the sleeve member as described above, the workability is also good. Since the filler is enclosed in the bag body, the operator does not directly touch the paste-like filler, and the operator does not feel uncomfortable.

  As one aspect, 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 a flexible sheet-like member, it is easy to wind around an uneven curved surface, and workability when filling the gap between the through hole and the elongated body Can be improved. Moreover, if it is a sheet-like member which is flexible to such an extent that it can be bent and has a certain degree of formability, it can be suppressed from being biased downward under the action of gravity or the like. Therefore, a sheet-like member can be uniformly arrange | positioned in the clearance gap between a through-hole and a elongate body over a long period of time after construction.

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

  According to this configuration, when the sheet-like member is cylindrical, portions adjacent to both sides in the circumferential direction with respect to the slit (hereinafter referred to as “slit adjacent portions”) are overlapped or separated from each other. can do. Therefore, the size of the opening at the open end of the sheet-like member can be easily adjusted.

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

  According to this configuration, the slit adjacent portion is formed in a trapezoidal shape in which the circumferential width gradually becomes narrower toward the open side end. The cylindrical sheet-like member is gradually reduced in diameter toward the open end by bringing the portions corresponding to the “legs” of the two adjacent trapezoidal slits adjacent to each other in the circumferential direction into contact with each other. Can be formed. Furthermore, for example, when a plurality of slits are provided in a distributed manner in the circumferential direction, the size of the opening at the open side end can be increased by overlapping or separating the slit adjacent portions adjacent to any one of the slits. Fine adjustment of the thickness can be easily performed. Therefore, even when the gap between the through hole and the elongated body is relatively wide, the gap can be appropriately filled.

The through hole measure structure according to the present invention is:
A through-hole measure structure provided between a through-hole formed in a partition of a building and a bundle of a plurality of long bodies inserted through the through-hole,
The above-described through-hole measure unit is inserted into the through-hole from the integrated end side where the sleeve member and the closing member in the axial direction are integrated,
A non-integrated portion of the closing member that is not integrated with the sleeve member is disposed in a valley space extending over each outer surface of the elongated bodies adjacent to each other in a deformed state 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 partition body in a state where the closing member forms a cylinder 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 into the through hole together with the sleeve member having a certain degree of rigidity. After the through-hole measure unit is inserted into the through-hole, the non-integrated portion of the blocking member is easily deformed, and the valley space over the outer surfaces of the adjacent elongated bodies is filled with the non-integrated portion. Can do. Therefore, it is excellent in workability when the through-hole measure is applied to the through-hole of the partition body, and the gap between the through-hole and the long body including the space formed by the uneven curved surface portion is provided. A through-hole measure structure that can be sufficiently filled can be realized.

  Further features and advantages of the present invention will become more apparent from the following description of exemplary and non-limiting embodiments described with reference to the drawings.

Broken perspective view of the fire protection structure according to the first embodiment Cross section of fire protection structure Perspective view of fire protection unit Exploded view of fire protection unit Perspective view showing one aspect of construction procedure of fire prevention structure Perspective view showing one aspect of construction procedure of fire prevention structure Cross section of fire protection structure A perspective view of a fire protection unit according to the second embodiment. Perspective view showing one aspect of construction procedure of fire prevention structure Cross section of fire protection structure A perspective view of a fire protection unit according to a third embodiment Exploded view of fire protection unit The perspective view of the fire protection unit of another aspect

[First Embodiment]
1st Embodiment of the through-hole measure unit and through-hole measure structure which concern on this invention is described with reference to 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 a fire-protection measure unit 1 for the purpose of preventing the spread of fire and a fire-protection measure structure using the same will be described. The fire protection unit 1 of the present embodiment includes a cylindrical sleeve member 20 inserted into a through hole 6H formed in a building partition 6 and a fireproof pack member 30 having flexibility. In this fire protection unit 1, the fireproof pack member 30 is disposed so as to overlap the sleeve member 20 along the circumferential direction C, and the sleeve member 20 and the fireproof pack member are disposed at one end in the axial direction L of the sleeve member 20. 30 is characterized by being integrated. Thereby, while being able to improve the workability | operativity at the time of performing a fire prevention measure with respect to the through-hole 6H of the division body 6, the through-hole 6H and a long body including the space formed by a curved surface part with an unevenness | corrugation are included. It is possible to sufficiently fill the gap space S between the two. Hereinafter, the fire protection unit 1 and the fire protection structure of the present embodiment will be described in detail.

  In the following description, the “axial direction L”, “circumferential direction C”, and “radial direction” are defined based on the cylindrical 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 around the central axis of the sleeve member 20 is the circumferential direction C, and extends in a direction perpendicular to the central axis of the sleeve member 20. The direction is the radial direction. Further, terms relating to directions, dimensions, and the like used in the following description are concepts including a state having 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 / left / right dimensional ratio, and the like may be different from those of an actual product from the viewpoint of easy illustration and easy understanding.

  In this embodiment, the division body 6 to which the fire prevention structure is applied is a fireproof and fireproof structure that divides a space in a building into a plurality of room spaces. For example, as shown in FIG. 1, the partition 6 may be a wall section that partitions a plurality of room spaces in the horizontal direction, or a floor (or ceiling; not shown) that partitions the plurality of chamber spaces in the vertical direction. It may be. The partition 6 may be a solid wall such as reinforced concrete (RC) or lightweight cellular concrete (ALC), or may be a hollow wall such as a gypsum board. Of course, one having a structure other than these may be used as the partition 6.

  The partition body 6 is formed with a through hole 6H that passes through the partition body 6 in the thickness direction (horizontal direction in the illustrated example). In the present embodiment, a circular through hole 6H is formed. However, the specific shape of the through hole 6H is not limited to such a configuration, and may be, for example, an elliptical shape, a polygonal shape, or other various shapes.

  A long body 7 is inserted into the through hole 6H of the partition body 6. The long body 7 has a long structure extending in one direction, such as a linear body, a tubular body, and a strip-shaped body. As such a long body 7, for example, piping for an air conditioner can be exemplified. In the present embodiment, the long body 7 includes a piping member 71 for circulating the refrigerant, a drain pipe 72 for draining the drain water, and an electric cable 73.

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

  A fire prevention structure is provided in the gap space S between the through hole 6 </ b> H and the plurality of long bodies 7. The gap space S is a space that spreads in the radial gap between the inner surface of the through-hole 6H and the outer surfaces of the plurality of long bodies 7. The fire protection structure of the present embodiment is realized by using a fire protection unit 1 including a cylindrical sleeve member 20 and a fireproof pack member 30 containing a thermally expandable fireproof material 32.

  The sleeve member 20 is formed in a cylindrical shape. The sleeve member 20 is formed in a cylindrical shape (cylindrical shape, elliptical cylindrical shape, polygonal cylindrical shape, etc.) corresponding to the shape of the inner surface of the through hole 6H. When the through hole 6H of the partition 6 is circular as in the present embodiment, the sleeve member 20 is formed in a cylindrical shape. In this embodiment, the length L1 of the sleeve member 20 in the axial direction L is substantially equal to the thickness of the partition member 6 in the axial direction L (see FIG. 2), and the length C1 of the sleeve member 20 in the circumferential direction C 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 across the entire region in the axial direction L at one place in the circumferential direction C. The sleeve member 20 has a cylindrical shape in a state where the split end portions 20E on both sides in the circumferential direction C face each other in the circumferential direction C (abutted state or a state facing each other with a slight gap). It is configured. The sleeve member 20 having a cylindrical shape in a normal use state is inserted (interpolated) into the through hole 6H along the inner surface of the through hole 6H formed in the partition body 6 of the building. 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 level 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 in which no external force is applied, and has a cylindrical shape slightly larger in diameter than the through hole 6H. Has been. 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), and the sleeve member 20 is reduced in diameter before being inserted into the through hole 6H. In this way, the inner peripheral surface of the through hole 6H and the outer peripheral surface of the sleeve member 20 that expands again in the through hole 6H can be brought into close contact with each other, and the occurrence of a gap between them can be effectively suppressed. be able to.

  The sleeve member 20 includes a sleeve main body portion 21 and a flange portion 22 provided at one end portion (an open side end portion 28 described later) of the sleeve main body portion 21 in the axial direction L. In the present embodiment, the sleeve main body 21 is formed as a curved plate-like portion that is curved in a cylindrical shape so that both end portions in the circumferential direction C are opposed to each other in the circumferential direction C. The flange portion 22 is formed integrally with the sleeve main body portion 21 so as to extend 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 to be described later) opposite to the side on which the flange portion 22 is provided in the sleeve main body portion 21. The tapered surface 23 is formed on the outer surface of the integrated end portion 26 in the sleeve main body 21 so as to gradually reduce the diameter toward the end edge 26 e side of the integrated end portion 26.

  In addition, this sleeve member 20 is provided also when the division body 6 to which a fire-protection structure is applied is a solid wall. Moreover, when the division body 6 is a hollow wall, the sleeve member 20 is installed in a state where the long body 7 has already been inserted into the through hole 6H of the division body 6 made of the hollow wall. In this regard, the sleeve member 20 provided in the fire protection unit 1 of the present embodiment is a general “penetrating sleeve” that is installed in advance in the through hole 6H of the partition body 6 formed of a hollow wall prior to the long body 7. Is different from the purpose of use and construction mode. This point will be described later.

  The fireproof pack member 30 is a member for closing the gap space S between the through hole 6 </ b> H and the elongated body 7. The fireproof pack member 30 has flexibility. The fireproof pack member 30 of the present embodiment includes a flexible bag body 31 and a paste-like thermally expandable fireproof material 32 enclosed in the bag body 31. In the present embodiment, the thermally expandable refractory material 32 corresponds to a “filler”, and the refractory pack member 30 corresponds to a “pack member” and a “closure member”. The bag body 31 can be formed, for example with a combustible plastic film (for example, a polyethylene film, a nylon film, etc.). The heat-expandable refractory material 32 is a member having thermal expansibility (property that increases in volume by heating) and fire resistance (property that can easily withstand heat and properties that have high melting temperature and are difficult to burn). As the heat-expandable refractory material 32, a known material can be used without particular limitation. For example, a putty-like member (heat-expandable putty-like refractory material) can be used. However, the heat-expandable refractory material 32 of this embodiment has a plasticizer content (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.

  This paste-like thermally expandable refractory material 32 is sufficiently soft as compared with a known putty-like refractory material. While the conventional putty-like refractory material has a consistency of about 50 to 80, the paste-like thermally expandable refractory material 32 of this embodiment has a consistency of about 80 to 400, for example. By using such a soft thermally expandable refractory material 32 enclosed in a flexible bag 31, the fireproof pack member 30 can be deformed relatively freely. Then, by deforming the fireproof pack member 30, it is possible to easily fill the valley space V across the outer surfaces of the adjacent long bodies 7 with the thermally expandable fireproof material 32. From the viewpoint of facilitating the deformation of the fireproof pack member 30, the consistency of the paste-like thermally expandable fireproof material 32 is preferably larger. For example, the consistency of the heat-expandable refractory material 32 is preferably 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 thermally expandable fireproof material 32 having a consistency of 300 or less may be used.

  In the present specification, “consistency” is defined in JIS K2220 5.3 (Consistency test method) using a penetration meter defined in JIS K2235 5.4.2 (1). The needle and weight in the dynamometer shall be replaced with a cone for measurement. More specifically, the above-mentioned cone is allowed to enter the sample vertically for 5 seconds, the depth at which the cone has entered is measured in units of 0.1 mm, and a value obtained by multiplying this by 10 (nameless number) is referred to as “consistency”. To do. Here, the cone has the shape and dimensions shown in JIS K2235 5.10.2 (2), and its mass is 102.5 ± 0.05 g, and the holder that supports the cone is JIS K2235 5.4. .2 (3) and its mass shall be 47.5 ± 0.05 g.

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

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

  In the present embodiment, the length C2 of the fireproof pack member 30 in the circumferential direction C is set to be longer than the length C1 of the sleeve member 20 in the circumferential direction C. The fireproof pack member 30 is arranged with the sleeve member 20 and one end in the circumferential direction C aligned. Thereby, the fireproof pack member 30 of the present embodiment is separated from the sleeve member 20 in the unfolded state shown in FIG. 4 at the end opposite to the end on the side where the end in the circumferential direction C is aligned with the sleeve member 20. A circumferentially extending portion 33 that extends in the circumferential direction C and does not overlap the sleeve member 20 when viewed in the radial direction is provided. By having such a circumferentially extending portion 33, the fireproof pack member 30 can be overlapped at both ends in the circumferential direction C in the assembled state shown in FIG. That is, in the assembled state in the cylindrical shape, the sleeve member 20 becomes a cylindrical shape with the overlapping end portions 20 </ b> E facing each other and without an overlapping portion, whereas the fireproof pack member 30 is formed of the circumferentially extending portion 33. Due to the presence, both end portions in the circumferential direction C have a cylindrical shape overlapping each other.

  In the present embodiment, the length L2 of the fireproof pack member 30 in the axial direction L is set to be longer than the length L1 of the sleeve member 20 in the axial direction L. The fireproof pack member 30 is arranged so that the sleeve member 20 and one end in the axial direction L (integrated end portions 26 and 36) are aligned. Thereby, the open side end portion 38 of the fireproof pack member 30 that is not integrated with the sleeve member 20 protrudes from the open side end portion 28 of the sleeve member 20 that is not integrated with the fireproof pack member 30. Yes. That is, the fireproof pack member 30 of the present embodiment is an end opposite to the integrated end 36 and is not integrated with the sleeve member 20 (open side end 38). It has an axially extending portion 34 that extends in the axial direction L from the sleeve member 20 and does not overlap the sleeve member 20 when viewed in the radial direction. By having such an axially extending portion 34, it is possible to reduce the thickness of the fireproof pack member 30 while securing a certain amount of the thermally expandable fireproof material 32 sealed inside. .

  Hereinafter, the construction procedure of the fire protection structure realized using the fire protection unit 1 of the present embodiment will be described. First, as shown in FIG. 5, in a state where a bundle of a plurality of long bodies 7 is arranged in a through hole 6 </ b> H formed in a partition body 6 of a building, a long bundle of long outside the through hole 6 </ b> H. The fire protection unit 1 is arranged so as to surround the body 7. At this time, the fire protection unit 1 is arranged around the 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, the fire prevention measures are taken so that the end portions (integrated end portions 26, 36) in which the sleeve member 20 and the fireproof pack member 30 in the axial direction L are integrated are positioned on the partition body 6 side. Unit 1 is arranged.

  Thereafter, the divided end portions 20E are brought close to each other so as to face each other in the circumferential direction C, and the sleeve member 20 is formed into a cylindrical shape. At that time, both end portions in the circumferential direction C of the fireproof pack member 30 are overlapped so that the circumferentially extending portion 33 of the fireproof pack member 30 is disposed inward in the radial direction. In this state, the fireproof pack member 30 is arranged such that the circumferentially extending portion 33 is disposed at the position of the largest valley space V among the plurality of valley spaces V extending over the outer surfaces of the long bodies 7 adjacent to each other. It is preferable to adjust the position in the circumferential direction C. In this way, the thermal expansion refractory material of the circumferentially extending portion 33 corresponding to the maximum valley space V, which requires a relatively large amount of the thermal expansion refractory material 32, is arranged in a double layer. 32 can be sufficiently filled. In addition, without being limited to such a configuration, the fire protection unit 1 is disposed around the bundle of long bodies 7 while disposing the circumferentially extending portion 33 at the position of the largest valley space V from the beginning. By doing so, the phase of the fireproof pack member 30 may be adjusted.

  Next, the fire protection unit 1 is inserted into the through-hole 6H from the side of the integrated ends 26 and 36 where the sleeve member 20 and the fireproof pack member 30 in the axial direction L are integrated. At this time, even if the fireproof pack member 30 is formed by including a paste-like heat-expandable fireproof material 32 having a high consistency and is soft, a gap space between the through-hole 6H and the plurality of long bodies 7 is used. The fireproof pack member 30 can be easily inserted into S together with the sleeve member 20 having a certain level of rigidity. Therefore, the workability at the time of applying a fire prevention measure to the through-hole 6H of the partition 6 can be improved. Since the tapered surface 23 is formed on the outer surface of the integrated end portion 26 in the sleeve main body 21, one end of the fire protection unit 1 is easily guided to the inside of the through hole 6 </ b> H by the guiding action by the tapered surface 23. be able to. Since the outward flange portion 22 is provided on the open side end portion 28 of the sleeve main body portion 21 and the thickness thereof is increased, the pushing operation for pushing the fire protection unit 1 in the axial direction L is also easy.

  The push-in operation of the fire protection unit 1 is performed until the flange portion 22 comes into contact with the surface of the partition body 6 (see FIGS. 2 and 6). In this state, the integrated ends 26 and 36 of the sleeve member 20 and the fireproof pack member 30 reach the position of the surface on the opposite side of the partition body 6. At this position, the fireproof pack member 30 is integrated with the sleeve member 20 over the entire area in the circumferential direction C, so that the fireproof pack member 30 contains the paste-like thermally expandable fireproof material 32 having a high consistency. Even if it is formed and soft, the occurrence of sagging can be effectively suppressed. In particular, even when the fireproof pack member 30 containing the heat-expandable fireproof 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 fireproof pack member 30 can be maintained over a long period of time.

  Then, as shown in FIG. 6, the axially extending portion 34 of the fireproof pack member 30 protruding from the open end 28 of the sleeve member 20 in the axial direction L is pushed into the through hole 6H. And the axial direction extension part 34 which is an area | region including the open side edge part 38 in the fireproof pack member 30, and is also a part of the non-integrated part 37 which is not integrated with the sleeve member 20 in the fireproof pack member 30. In the valley space V over the outer surface of each of the long 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 fireproof 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. . The refractory pack member 30 is formed of a highly viscous paste-like heat-expandable refractory material 32 and is very soft. Therefore, the refractory pack member 30 is easily formed in a plurality of valley spaces V formed on the outer surface of the bundle of long bodies 7. Can follow the shape. Therefore, the gap space S between the through hole 6H and the elongated body 7 including the plurality of valley spaces V can be sufficiently filled. At this time, since the flange portion 22 is in contact with the surface of the partition body 6, the fire protection unit 1 is not moved in the axial direction L by the pushing operation when the fireproof pack member 30 is pushed.

  When a fire occurs 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 a gap space S between the through hole 6H and the long body 7 is formed. There is a possibility of further expansion. Even in this case, the thermally expandable refractory material 32 contained in the refractory pack member 30 is thermally expanded in accordance with an increase in the ambient temperature, and fills the space generated by melting and burning the covering material 71B (in other words, To compensate for the increase in the gap volume). In particular, in this embodiment, since the valley space V is sufficiently filled by causing the soft fireproof pack member 30 to follow the shape of the valley space V, sufficient fire prevention performance is imparted. Therefore, by using the fire protection unit 1 of the present embodiment, it is possible to realize a fire protection structure that is excellent in workability and provides sufficient fire prevention performance.

[Second Embodiment]
2nd Embodiment of the through-hole measure unit and through-hole measure structure which concern on this invention is described with reference to 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-proof measure unit 1 and the fire-proof measure structure using the same. In the present embodiment, the specific configuration of the fire protection unit 1 is partially different from that of the first embodiment. Hereinafter, the difference between the fire protection unit 1 and the fire protection structure of the present embodiment and the first embodiment will be mainly described. Note 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 is omitted.

  As shown in FIG. 8, the fire protection unit 1 of the present embodiment further includes a guide member 40 in addition to the cylindrical sleeve member 20 and the fireproof pack member 30 containing the thermally 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 preferably has a certain level of rigidity and strength as a whole.

  The guide member 40 is integrated with the bag body 31 of the fireproof pack member 30 at the open end 38 of the fireproof pack member 30. The guide member 40 is integrated with the fireproof pack member 30 in a state where the guide member 40 is disposed on the radially outer side of the fireproof pack member 30. In the present embodiment, the guide member 40 and the fireproof pack member 30 are continuously integrated over the entire region in the circumferential direction C. The guide member 40 is integrated with the fireproof pack member 30 so as to overlap the axially extending portion 34 of the fireproof pack member 30 in the radial direction. The sleeve member 20 and the guide member 40 are integrated with the fireproof pack member 30 at the opposite ends in the axial direction L on the radially outer side which is the same side with respect to the fireproof pack member 30.

  In this embodiment, the guide member 40 includes a guide main body portion 41 having a shape corresponding to the shape of the sleeve main body portion 21 of the sleeve member 20 and a flange portion provided at an end portion on the side integrated with the fireproof pack member 30. 42. In the present embodiment, the guide main body 41 is formed in a cylindrical shape having an outer diameter comparable to the inner diameter of the cylindrical sleeve main body 21. The flange portion 42 is formed integrally with the guide main body portion 41 so as to extend radially inward from the guide main body portion 41.

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

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

  In order to realize the fire protection structure using the fire protection unit 1 of the present embodiment, the entire fire protection unit 1 is pushed into the through-hole 6H of the partition body 6 in the same manner as in the first embodiment, and then penetrated. In a state where the sleeve member 20 is 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 cylindrical guide member 40 is inserted into the sleeve member 20 from the open end 28 side of the sleeve member 20. The guide member 40 is inserted along the axial direction L with respect to the sleeve member 20 with the end of the guide main body 41 opposite to the side on which the flange portion 42 is provided as the head. At this time, since the inward flange portion 42 is provided at the rear end of the guide main body portion 41 in the insertion direction and the thickness thereof is increased, the second pushing operation can be easily performed.

  Since the guide member 40 is integrated with the open side end portion 38 of the fireproof pack member 30, the fireproof portion that protrudes from the open side end portion 28 of the sleeve member 20 and is not inserted after the first pushing operation has been performed. 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, it is possible to insert the open side end portion 38 of the fireproof pack member 30 into the inner space of the sleeve member 20 by directly operating the guide member 40 without operating it. Thereafter, the non-integrated portion 37 of the fireproof pack member 30 is disposed by being pushed into the valley space V over the outer surfaces of the adjacent elongated bodies 7. The refractory pack member 30 is formed of a highly viscous paste-like heat-expandable refractory material 32 and is very soft. Therefore, the refractory pack member 30 is easily formed in a plurality of valley spaces V formed on the outer surface of the bundle of long bodies 7. Can follow the shape. Therefore, the gap space S between the through hole 6H and the elongated body 7 including the plurality of valley spaces V can be sufficiently filled.

  In the present embodiment, the guide in which the fireproof pack member 30 is held on the radially inner side of the sleeve member 20 at the position of the end opposite to the integrated ends 26 and 36 of the sleeve member 20 and the fireproof pack member 30. The member 40 is integrated over the entire region in the circumferential direction C. Thus, since the fireproof pack member 30 is integrated in the whole area in the circumferential direction C with respect to the other cylindrical members at each of both end portions in the axial direction L, the occurrence of sagging is more effectively suppressed. can do. Therefore, even if the fireproof pack member 30 is formed by including the paste-like thermally expandable fireproof material 32 having a high consistency and is soft, the shape retention of the fireproof pack member 30 is maintained for a long period of time. Can do.

[Third Embodiment]
3rd Embodiment of the through-hole measure unit and through-hole measure structure which concern on this invention is described with reference to 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-proof measure unit 1 and the fire-proof measure structure using the same. In the present embodiment, a member that is 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 difference between the fire protection unit 1 and the fire protection structure of the present embodiment and the first embodiment will be mainly described. Note 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 is omitted.

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

  The heat-expandable fireproof sheet 51 is configured by laminating a base sheet 51A, a heat-expandable fireproof material 51B, and a covering sheet 51C. The base sheet 51A can be composed of a metal thin film sheet such as an aluminum walliff, an aluminum glass cloth, and an aluminum craft. The heat-expandable refractory material 51B is a member having 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 unburned 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 thermally expandable refractory material 51B expands in the thickness direction when heated to, for example, 200 ° C. or higher. The covering sheet 51C can be formed of a resin film such as a polyethylene film or a nylon film, for example. The base 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 fireproof sheet 51 is formed so as to have a predetermined thickness (for example, 1.5 mm to 10 mm) as a whole, mainly depending on the thickness of the heat-expandable fireproof material 51B. The thermally expandable refractory sheet 51 is formed so as to have flexibility (a property that can be flexed) mainly depending on the constituent material of the thermally expandable refractory material 51B. Although the fireproof sheet member 50 composed of the heat-expandable fireproof sheet 51 has flexibility, it is more flexible than the fireproof pack member 30 described in the first embodiment or the second embodiment. Is much lower. The fireproof sheet member 50 is formed to have a certain degree of regularity while having flexibility (flexibility).

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

  The length of the fireproof sheet member 50 in the circumferential direction C is set longer than the length of the sleeve member 20 in the circumferential direction C. And the fireproof sheet member 50 is extended in the circumferential direction C from the sleeve member 20 in the unfolded state shown in FIG. 12 at one end in the circumferential direction C, and the circumferentially extending portion 53 that does not overlap the sleeve member 20 in the radial direction. Have Further, the length of the fireproof sheet member 50 in the axial direction L is set longer than the length of the sleeve member 20 in the axial direction L. The refractory sheet member 50 is connected to the end portion (open side end portion 58) that is the end portion opposite to the integrated end portion 56 and 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 the sleeve member 20 when viewed in the radial direction.

  As shown in FIG. 12, in this embodiment, a plurality of slits 52 along the axial direction L are provided in the open direction end 58 of the fireproof sheet member 50 in a distributed manner in the 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 so as to be considered substantially parallel). Means). The length of the slit 52 in the axial direction L is shorter than the length of the fireproof sheet member 50 in the axial direction L. By the plurality of slits 52, the fireproof sheet member 50 is partitioned into a plurality of inter-slit portions 51 </ b> P arranged in the circumferential direction C. The plurality of inter-slit portions 51P are integrated so as to be seamlessly continuous at one end side in the axial direction L (on the integrated end portion 56 side). The two slit-to-slit portions 51P adjacent in the circumferential direction C are also portions adjacent to both sides in the circumferential direction C with respect to the slits 52 provided therebetween, and in this sense, they are also referred to as “slit adjacent portions”, respectively. be able to.

  The formation mode of the slit 52 may be arbitrary. The slit 52 may be formed to have a constant circumferential width that does not depend on the position in the axial direction L, or may be formed so that the circumferential width varies depending on the position in the axial direction L. In the present embodiment, the slit 52 is V-shaped (more specifically, the bottom 52b is formed so that the circumferential width gradually increases from the bottom 52b on the integrated end 56 side toward the open end 58. V-shape that is line-symmetric with respect to a virtual plane passing through the circumferential position.

  The inter-slit portion 51P is formed in a trapezoidal shape. The inter-slit portion 51P has a trapezoidal shape in which the circumferential width gradually decreases from the base end portion on the integrated end portion 56 side toward the open end portion 58 in accordance with the shape (V-shape) of the slit 52 (this example). Is formed in an isosceles trapezoidal shape. In this case, in each inter-slit portion 51P, the outer surface of the open-side end portion 58 is a portion corresponding to the “upper bottom” of the trapezoidal inter-slit portion 51P, and each side facing the slit 52 is a portion corresponding to the “leg”. Become.

  Using the fireproof sheet member 50 having such a configuration, the side surfaces (corresponding to “legs”) of two trapezoidal slit-to-slit portions 51P adjacent to each other in the circumferential direction C are brought into contact with each other to form a cylindrical fireproof. The sheet member 50 can be formed in a tapered shape so that the diameter thereof is gradually reduced toward the open end 58. The opening-side end portion 58 of the tubular fire-resistant sheet member 50 can be made smaller in diameter than the sleeve member 20, and preferably, the outer periphery of the long body 7 is covered with the opening-side end portion 58 without a gap. Can do. 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 portion 58 side) and the size of the elongated body 7, the inter-slit portions 51P adjacent in the circumferential direction C are partially separated. It is good to arrange in piles or to be separated from each other. For example, when the long body 7 is relatively small, the opening-side end portion 58 of the tubular refractory sheet member 50 has a smaller diameter by overlapping the end portions in the circumferential direction C of the inter-slit portion 51P. Thus, the open end 58 can be made to follow the outer surface of the long body 7. For example, when the long body 7 is relatively large, the end portions in the circumferential direction C of the inter-slit portion 51P are arranged apart from each other without being brought into contact with each other, so that the cylindrical fireproof sheet member 50 is disposed. It is possible to increase the diameter of the open-side end portion 58 so as to follow the outer surface of the long body 7. At that time, the fine adjustment of the size of the opening on the open end 58 side does not necessarily have to be performed uniformly over the entire circumference, and the circumferential direction corresponds to the arrangement state of the bundle of long bodies 7. It may be performed differently depending on the position.

[Other Embodiments]
(1) In the above embodiments, the configuration in which the sleeve member 20 is integrally formed has been described as an example. However, the present invention is not limited to such a configuration, and for example, the sleeve member 20 may be configured by a plurality of sleeve divided bodies that form a tubular shape as a whole. Further, as shown in FIG. 13, for example, the sleeve member 20 may be formed in a cylindrical shape having a penetrating portion (thickening portion) 24 penetrating in the thickness direction. In this case, when the fireproof pack member 30 is used as the closing member, when the non-integrated portion 37 of the fireproof pack member 30 is pushed in and deformed, at least a part of the non-integrated portion 37 is passed through the penetration portion. 24 can be arranged so as to be in contact with the inner surface of the through hole 6H. 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 filled sufficiently. Furthermore, when the heat-expandable refractory material 32 is heated, the expanded heat-expandable refractory material 32 passes through the through portion 24 and presses the inner surface of the through hole 6H. Therefore, the gap space S between the through hole 6H and the elongated body 7 can be reliably shielded including the 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 to the case where 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, the description has been given mainly assuming the configuration in which the sleeve member 20 has a cylindrical shape corresponding to the shape of the inner surface of the through hole 6H from the beginning. However, the sleeve member 20 is not limited to such a configuration, and the sleeve member 20 only needs to be cylindrical at least when inserted into the through-hole 6H. The sleeve member 20 has another shape such as a flat plate shape before insertion. It may be.

(3) In each of the above embodiments, the configuration in which the sleeve member 20 has the flange portion 22 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 flange portion 22 may not be provided on the sleeve member 20.

(4) In each of the above embodiments, the configuration in which the sleeve member 20 has the tapered surface 23 on the outer surface of the sleeve main body portion 21 on the integrated end portion 26 side has been described as an example. However, the configuration is not limited to such a configuration. For example, the sleeve member 20 may not include the tapered surface 23.

(5) In the above-described first and second embodiments, the configuration in which the fireproof pack member 30 has the circumferential extending portion 33 only on one side in the circumferential direction C has been described as an example. However, the fireproof pack member 30 may include the circumferentially extending portions 33 on both sides in the circumferential direction C without being limited to such a configuration. However, one of the two circumferentially extending portions 33 has a size that does not prevent the sleeve member 20 from becoming a cylindrical shape with the divided end portions 20E facing each other in the circumferential direction C. The same applies to the case where the fireproof sheet member 50 is used instead of the fireproof pack member 30 as in the third embodiment.

(6) In said 1st and 2nd embodiment, the structure which has both the circumferential direction extension part 33 and the axial direction extension part 34 which the fireproof pack member 30 does not overlap with the sleeve member 20 in the expansion | deployment state is an example As explained. However, without being limited to such a configuration, for example, the fireproof pack member 30 may not have at least one of the circumferentially extending portion 33 and the axially extending portion 34. The same applies to the case where the fireproof sheet member 50 is used instead of the fireproof pack member 30 as in the third embodiment.

(7) In said 1st and 2nd embodiment, the structure using the fireproof pack member 30 by which only the paste-form thermally expansible fireproof material 32 is enclosed in the bag body 31 is mainly assumed, and is demonstrated. did. However, without being limited to such a configuration, as the fireproof pack member 30, in addition to the paste-like thermally expandable refractory material 32 inside the bag body 31, non-paste-like fillers such as inorganic fibers or You may use what enclosed other components, such as an inorganic sphere.

(8) In the first and second embodiments described above, the sleeve member 20 and the fireproof pack member 30 are integrated only in the peripheral portion of the bag body 31 (an example of “one end in the axial direction L”). The description has been given 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 fireproof pack member 30, the sleeve member 20 and the fireproof pack member 30 are within a predetermined range (for example, a shaft). It may be integrated over a region from one end in the direction L to the center portion). Alternatively, the sleeve member 20 and the fireproof 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, the configuration in which the single sleeve member 20 and the single fireproof pack member 30 are integrated has been described as an example. However, without being limited to such a configuration, for example, a plurality of fireproof pack members 30 are provided for one sleeve member 20, and the one sleeve member 20 and the plurality of fireproof pack members 30 are integrated. Also good. In this case, the pair of fireproof 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. The same applies to the case where 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, without being limited to such a configuration, for example, the guide member 40 may be configured by a plurality of guide divided bodies having a cylindrical shape as a whole. Moreover, the guide member 40 may be formed in the cylinder shape which has the penetration part (thickening part) penetrated in the thickness direction, for example. Alternatively, the guide member 40 may be formed by using a core material such as a wire, for example, and assembling the core material into a tubular shape or an annular shape as a whole.

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

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

(13) In the third embodiment, the configuration in which the plurality of slits 52 along the axial direction L are provided in the circumferential direction C at the open end 58 of the fireproof sheet member 50 has been described as an example. . However, it is not limited to such a configuration, and only one slit 52 may be provided in the fireproof sheet member 50.

(14) In the third embodiment, the configuration in which the V-shaped slit 52 is formed in the fireproof sheet member 50 has been described as an example. However, the slit 52 may be formed in a straight line, for example, without being limited to such a configuration. Moreover, the slit 52 does not necessarily need to be formed from the beginning, and the fireproof sheet member 50 includes a structure (referred to as a “slit precursor”) that allows the slit 52 to be easily formed, and is necessary at the time of construction. Depending on the situation, the slit 52 may be made visible afterwards. A slit precursor part can be comprised, for example with a sewing machine line, a half cut line, etc. The refractory sheet member 50 having such a slit precursor can be regarded as “provided with the slit 52” even if the slit 52 is not actually present. In addition, the slit 52 (including the slit precursor) is not necessarily formed in the fireproof sheet member 50.

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

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

  The configuration disclosed in each of the above-described embodiments (including each of the above-described embodiments and other embodiments; the same applies hereinafter) is applied in combination with the configuration disclosed in the other embodiments unless a contradiction arises. It is also possible to do.

  Regarding other configurations, it should be understood that the embodiments disclosed herein are illustrative in all respects and that the scope of the present invention is not limited thereby. Those skilled in the art will readily understand that modifications can be made as appropriate without departing from the spirit of the present invention. Accordingly, other embodiments modified without departing from the spirit of the present invention are naturally included in the scope of the present invention.

1 Fire protection unit (through-hole measure unit)
6 division body 6H through-hole 7 elongate body 20 sleeve member 22 flange portion 23 taper surface 26 integrated end portion 26e end edge 28 open side end portion 30 fireproof pack member (blocking member, pack member)
31 Bag 32 Thermally expandable refractory material (filler)
33 circumferentially extending portion 34 axially extending portion 36 integrated end 37 non-integrated portion 38 open side end 40 guide member 50 refractory 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 (10)

A cylindrical sleeve member inserted into a through-hole formed in a partition of a building;
A closure member having flexibility,
A through-hole measure in which the closing member is disposed 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.   2. The through-hole measure unit according to claim 1, wherein a circumferential length of the closing member is longer than a circumferential length of the sleeve member, and both end portions in the circumferential direction of the closing member can overlap each other.   The sleeve member has a tapered surface that gradually decreases in diameter toward an end edge side of the integrated end portion on an outer surface of the integrated end portion integrated with the closing member in the axial direction. The through-hole measure unit according to 2.   The length of the closing member in the axial direction is longer than the length of the sleeve member in the axial direction, and the open side end portion of the closing member that is not integrated with the sleeve member is the closing member in the sleeve member. The through-hole measure unit according to any one of claims 1 to 3, wherein the through-hole measure unit projects from an open side end portion that is not integrated with the open side end portion. A guide member inserted into the sleeve member from the open side end side of the sleeve member;
The through-hole measure unit according to claim 4, wherein the guide member and the closing member are integrated at the open side end of the closing member.   The through-hole measure unit according to any one of claims 1 to 5, wherein the closing member is a pack member including a flexible bag body and a paste-like filler enclosed in the bag body. .   The through hole measure unit according to any one of claims 1 to 5, wherein the closing member is a flexible sheet-like member.   The through-hole measure unit according to claim 7, wherein a slit along the axial direction is provided at an open side end portion of the sheet-like member that is not integrated with the sleeve member.   The through-hole measure unit according to claim 8, wherein the slit is formed in a V shape whose width in the circumferential direction gradually increases toward the open end. A through-hole measure structure provided between a through-hole formed in a partition of a building and a bundle of a plurality of long bodies inserted through the through-hole,
The through-hole measure unit according to any one of claims 1 to 9 is inserted into the through-hole from an integrated end portion side in which the sleeve member and the closing member are integrated in the axial direction. And
A non-integrated portion of the closing member that is not integrated with the sleeve member is disposed in a valley space extending over each outer surface of the elongated bodies adjacent to each other in a deformed state corresponding to the valley space. Through-hole measures structure.

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