JP2023093459A - Gap processing member and through hole processing structure of division body - Google Patents

Abstract

To provide a gap processing member which enables improvement of insertability into a through hole, and to provide a through hole processing structure of a division body.SOLUTION: A gap processing member 51 has: a cylindrical part 52 which is disposed at the inner side of a through hole Wa so as to enclose a wiring P; and a closing part 53 which closes a gap S located between an inner surface of the cylindrical part 52 and an outer peripheral surface of the wiring P. The cylindrical part 52 and the closing part 53 are formed of a foam having reaction force for restoring the foam to its original shape when the foam is compressed. In the gap processing member 51, the closing part 53 is compressively deformed more easily than the cylindrical part 52.SELECTED DRAWING: Figure 7

Description

TECHNICAL FIELD The present invention relates to a gap processing member installed in a gap between an outer peripheral surface of a penetrating member and an inner peripheral surface of a through hole, and a through hole processing structure of a partition in which the gap processing member is installed.

Conventionally, in buildings, etc., when arranging penetrating members such as cables and pipes that penetrate a wall as a partition in the thickness direction, a through hole is made in the wall and the penetrating member penetrates, and the perimeter of the penetrating member A gap processing member or a cylindrical member is installed in the gap between the surface and the inner peripheral surface of the through hole to form the through hole processing structure of the partition.

As the gap treatment member, for example, the thermally expandable fireproof material described in Patent Document 1 can be cited. The thermally expandable fire-resistant fitting described in Patent Document 1 includes a cylindrical fire-resistant fitting body inserted into a through hole, a flange protruding from the outer peripheral surface of the fire-resistant fitting body, and a flange extending from the inner peripheral surface of the fire-resistant fitting body. with tongues projecting in opposite directions.

The refractory main body is made of thermally expandable rubber having an insertion hole through which the penetrating member can be inserted. The dimension in the thickness direction of the refractory main body ensures the thickness of the thermally expanding portion that expands due to the heat generated by a fire, etc., and the refractory is able to withstand the occurrence of a fire, etc. on the outer peripheral surface side of the thermally expanding portion. The thickness of the outer shape maintaining portion that maintains the outer shape of the main body is ensured.

In the through-hole processing structure, the thermally expandable fireproof fitting is installed between the inner peripheral surface of the throughhole and the outer peripheral surface of the through member, and the through hole inserted into the insertion hole of the thermally expandable fireproof fitting A plurality of tongues are arranged between the outer peripheral surface of the member and the inner peripheral surface of the refractory main body. The plurality of tongues are elastically deformed so as to come into close contact with the outer peripheral surface of the penetrating member.

JP 2008-241027 A

However, in the heat-expandable fire-resistant material of Patent Document 1, the main body of the fire-resistant material is made of heat-expandable rubber. The thickness of the outer shape maintaining portion is ensured. For this reason, there is a problem that the main body of fire-resistant equipment is difficult to deform, and that it is difficult to insert the main body of fire-resistant equipment into the through-hole depending on the size of the through-hole.

SUMMARY OF THE INVENTION An object of the present invention is to provide a gap treating member and a structure for treating a through hole of a partition which can improve insertability into the through hole.

The gap processing member for solving the above problems is installed in a state surrounding the through member in the gap between the outer peripheral surface of the through member inserted in the through hole provided in the partition and the inner peripheral surface of the through hole. a cylindrical portion arranged inside the through hole so as to surround the through member, an inner surface of the cylindrical portion in a thickness direction of the cylindrical portion, and the through member and a closing part that closes the space between the outer peripheral surface of the The gist is that it is less likely to be compressed and deformed than the closing portion.

The gap processing member for solving the above problems is installed in a state surrounding the through member in the gap between the outer peripheral surface of the through member inserted in the through hole provided in the partition and the inner peripheral surface of the through hole. a cylindrical portion disposed inside the through hole so as to surround the penetrating member; and a cylindrical portion integral with the cylindrical portion and along the thickness direction of the cylindrical portion. and a plurality of valve portions extending from the outer surface side of the tubular portion toward the center, wherein the tubular portion and the valve portion are made of a foam having a reaction force that restores the original shape when compressed. A gist of the invention is that the cylindrical portion is less likely to undergo compression deformation than the valve portion.

Regarding the gap processing member, the cylindrical portion may have thermal expansion performance.
Assuming that the direction in which the through hole penetrates the partition is defined as the penetration direction, the gap treatment member may have a flange portion that surrounds the through hole on one side of the partition in the penetration direction.

In the through-hole processing structure of the partition for solving the above problems, a through-hole is inserted into the through-hole provided in the partition, and the gap between the outer peripheral surface of the through-member and the inner peripheral surface of the through-hole is filled with a penetrating member. A through-hole treatment structure for a partition body in which a gap treatment member surrounding the through-hole member is installed, wherein the gap-treatment member is a cylindrical portion arranged inside the through-hole so as to surround the through-hole member. and a closing portion that closes a space between the inner surface of the tubular portion and the outer peripheral surface of the penetrating member in the thickness direction of the tubular portion, wherein the tubular portion and the closing portion are compressed. It is made of a foam having a reaction force to return to its original shape, and the tubular portion is formed so as to be less likely to undergo compression deformation than the closing portion. The outer surface of the cylindrical portion is compressed to closely contact the inner surface of the through hole, and the closing portion is compressed in the thickness direction, so that the closing portion is attached to the inner surface of the cylindrical portion and the outer peripheral surface of the through member. The gist is that they are closely related.

Regarding the through-hole processing structure of the partition, in the original shape, the tubular portion has an outer shape that is larger than the inner shape of the through-hole and has a hollow shape that is wider than the outer shape of the penetrating member that the inner space surrounds. Further, the closing portion may have a hollow cylindrical shape having an inner space narrower than the outer shape of the penetrating member.

In the through-hole processing structure of the partition for solving the above problems, a through-hole is inserted into the through-hole provided in the partition, and the gap between the outer peripheral surface of the through-member and the inner peripheral surface of the through-hole is filled with a penetrating member. A through-hole processing structure of a partition in which a gap processing member surrounding the penetrating member is installed, the gap processing member comprising:
a cylindrical portion arranged inside the through hole so as to surround the penetrating member; and a plurality of valve portions extending toward the center, wherein the tubular portion and the valve portion are made of a foam having a reaction force that returns to its original shape when compressed, and the tubular portion includes the valve. The valve portion can form a passage through which the penetrating member passes by bending deformation or compression, and the cylindrical portion disposed in the gap can Compressed in the thickness direction, the outer surface of the cylindrical portion is brought into close contact with the inner peripheral surface of the through hole, the through member passes through the passage opening, and the tip side of the valve portion is the outer peripheral surface of the through member. The gist is that it is closely related to

With regard to the through-hole processing structure of the partition, the cylindrical portion may receive a pressing force from the inside of the cylindrical portion by the penetrating member.
In the through-hole processing structure of the partition for solving the above problems, a through-hole is inserted into the through-hole provided in the partition, and the gap between the outer peripheral surface of the through-member and the inner peripheral surface of the through-hole is filled with a penetrating member. A through-hole processing structure for a partition in which a gap processing member is installed so as to surround the through member, wherein the gap processing member is a cylinder arranged inside the through hole so as to surround the through member. having a shape portion, the cylindrical portion is made of a foam having a reaction force that returns to its original shape when compressed, has thermal expansion performance, has an outer shape smaller than the inner shape of the through hole, Further, it has a cylindrical shape having an inner space narrower than the surrounding penetrating member, and the outer surface is expandable and deformable by pressing from the inside of the cylindrical portion along the thickness direction of the cylindrical portion, and the gap is formed. The tubular portion arranged in the space is pressed from the inside by the penetrating member that surrounds it, and is expanded and deformed in the thickness direction, so that the outer surface of the tubular portion comes into close contact with the inner peripheral surface of the through hole. and

According to the present invention, it is possible to improve the insertability into the through-hole.

FIG. 2 is a cross-sectional view showing a through-hole treatment structure using the gap treatment member of the first embodiment; FIG. 2 is an exploded perspective view showing the gap processing member of the first embodiment; FIG. 2 is a perspective view showing a through-hole treatment structure using the gap treatment member of the first embodiment; FIG. 8 is an exploded perspective view showing a gap processing member of the second embodiment; Sectional drawing which shows the through-hole processing structure using the clearance gap processing member of 2nd Embodiment. FIG. 11 is an exploded perspective view showing a gap processing member according to a third embodiment; FIG. 11 is a cross-sectional view showing a through-hole processing structure using a gap processing member according to a third embodiment; The front view which shows the through-hole processing structure using the clearance gap processing member of 4th Embodiment. The perspective view which shows the clearance gap processing member of another example. Sectional drawing which shows the through-hole processing structure using a gap processing member. FIG. 11 is an exploded perspective view showing a gap processing member of another example; (a) is a diagram showing a tubular member inserted into a through-hole, and (b) is a diagram showing a state in which the tubular member is expanded from the inside.

(First embodiment)
A first embodiment embodying a gap processing member and a through-hole processing structure of a partition will be described below with reference to FIGS. 1 to 3. FIG.

First, the wall W as a partition will be described. As shown in FIG. 1, the wall W has a solid shape made of concrete, and the wall W has a circular through hole Wa for allowing a wiring P as a penetrating member to pass through the wall W in the thickness direction. formed. It should be noted that the outer peripheral surface of the wiring P may be an outer peripheral surface formed in a state in which a plurality of wirings P are gathered. The outer peripheral surface of the wiring P may be uneven in the circumferential direction, or may be circular. In addition to the wiring P, the penetrating member may be a piping material such as a pipe or a protective tube, or may be a combination of the wiring and the piping material. A gap S is defined between the outer peripheral surface of the wiring P and the inner peripheral surface of the through hole Wa, and a gap processing member 11 surrounding the wiring P is installed in the gap S.

Next, the gap processing member 11 will be described.
As shown in FIG. 2 , the gap processing member 11 has a cylindrical portion 12 and a valve body 20 adhered to one axial end surface of the cylindrical portion 12 . The tubular portion 12 and the valve body 20 are each made of a foam having thermal expansion performance, specifically, a foam in which a thermal expansion material is uniformly dispersed in a base material. The cylindrical portion 12 and the valve body 20 are obtained by foaming only the foaming agent in the matrix material in which the thermal expansion material and the foaming agent are kneaded into the matrix. In this embodiment, expanded graphite is used as the thermal expansion material, and polymer is used as the base material, and more specifically, synthetic rubber is used. Chloroprene rubber is used as the synthetic rubber. In addition to chloroprene rubber, synthetic rubbers include ethylene propylene diene rubber (EPDM), natural rubber (NR), synthetic natural rubber (IR), isoprene rubber, butadiene rubber (BR), styrene butadiene rubber (SBR), Butyl rubber (IIR) and nitrile rubber (NBR) can be mentioned.

The foaming starting temperature of the foaming agent is 130 to 200°C, and the foaming starting temperature of the expanded graphite is 120 to 300°C. As a method of manufacturing the tubular portion 12 and the valve body 20 of the gap processing member 11, for example, expanded graphite and a foaming agent are uniformly dispersed in chloroprene rubber to adjust the base material, and then the expanded graphite is adjusted so as not to expand. , is produced by heating the matrix material to a temperature below the temperature at which the expanded graphite expands, causing the blowing agent to expand.

The gap treating member 11 is spongy and has a large number of fine air bubbles formed by foaming of a foaming agent. Further, the gap processing member 11 can be compressed and deformed by the expanded chloroprene rubber.

The cylindrical portion 12 and the valve body 20 are foamed bodies, but have different degrees of foaming. In the cylindrical portion 12 and the valve body 20, the ratio of cells to the volume of the base material is defined as the degree of foaming.

Let the direction in which the central axis of the tubular portion 12 extends be the axial direction of the tubular portion 12 , and let the direction perpendicular to the axial direction be the thickness direction of the tubular portion 12 . The thickness direction of the tubular portion 12 is also the direction that connects the inner surface and the outer surface of the tubular portion 12 . Also, the dimension of the valve body 20 in the axial direction of the cylindrical portion 12 is defined as the thickness of the valve body 20 . The thickness of the cylindrical portion 12 is thicker than the thickness of the valve body 20 . Considering the fact that the degree of foaming of the cylindrical portion 12 is lower than that of the valve body 20 as described above, the cylindrical portion 12 is less likely to be compressed and deformed than the valve body 20 and is less likely to bend. In other words, the valve portion 22 of the valve body 20 is more likely to be compressed and deformed than the cylindrical portion 12 and is more likely to bend. That is, the tubular portion 12 is made of a material that can be compressed and deformed while maintaining the shape of the tubular portion 12 to some extent.

In addition, the upper limit of the degree of foaming of the tubular portion 12 and the valve body 20 is about 30 times. This is because if the degree of foaming exceeds 30 times, the cylindrical portion 12 and the valve body 20 become too soft, and a sufficient reaction force, which will be described later, cannot be obtained, which is not preferable.

In this embodiment, the degree of foaming of the tubular portion 12 and the valve body 20 are different. In this case, the upper limit of the degree of foaming of the tubular portion 12 is preferably up to 5 times, more preferably up to 2 times. . This is for the purpose of making the degree of foaming of the tubular portion 12 lower than the upper limit of 30 times, thereby making it difficult for the tubular portion 12 to bend and enhancing the insertability into the through hole Wa.

On the other hand, the degree of foaming of the valve portion 22 is relatively higher than that of the cylindrical portion 12 while being lower than 30 times. By setting in this way, the valve portion 22 can be more easily bent than the tubular portion 12, and easily deformed following the outer surface shape of the wiring P.

Further, the composition of the expanded graphite is made different between the cylindrical portion 12 and the valve body 20 so that the coefficient of thermal expansion of the cylindrical portion 12 is larger than that of the valve body 20 .
A circular insertion hole 13 is formed inside the tubular portion 12 so as to penetrate through the tubular portion 12 in the axial direction. Let the radius of the insertion hole 13 be "r". The tubular portion 12 is provided with a dividing slit 14 extending along the entire axial direction of the tubular portion 12 . The dividing slit 14 extends in the thickness direction of the tubular portion 12 . The dividing slits 14 are connected in the thickness direction of the tubular portion 12 so as to communicate between the outer surface of the tubular portion 12 and the insertion hole 13, and the insertion hole 13 can be opened to the outside of the tubular portion 12. .

The valve body 20 has a circular frame-shaped base portion 21 and a sector-shaped valve portion 22 protruding from the base portion 21 toward the center of the base portion 21, and is disk-shaped as a whole. The valve body 20 is integrated with the tubular portion 12 by bonding the base portion 21 to one axial end surface of the tubular portion 12 . The maximum diameter of the valve body 20 is the same as the outer diameter of the tubular portion 12 . Therefore, the outer peripheral portion of the valve body 20 does not protrude from the outer surface of the tubular portion 12 .

The valve body 20 has a plurality of slits 23 radially extending from the center of the valve body 20 . The plurality of slits 23 extend halfway so as not to reach the outer surface of the valve body 20 . The base portion 21 is positioned outside the plurality of slits 23 . In each slit 23 , the dimension from the center of the valve body 20 to the base 21 is defined as the length of the slit 23 . The length of this slit 23 is the same as or slightly longer than the radius r of the insertion hole 13 described above.

The valve body 20 has a halving slit 24 continuous with one of the plurality of slits 23 . The halving slit 24 allows the outer surface of the valve body 20 and one slit 23 to communicate with each other. The base portion 21 is formed so as to be split in half by the slit 24 for splitting.

Each valve portion 22 is formed between adjacent slits 23 of the valve body 20 in the circumferential direction. Each valve portion 22 is a fan-shaped plate-like body that narrows from the base portion 21 toward the center of the valve body 20 . The tip of each valve portion 22 is located on the center side of the cylindrical portion 12 . When the wiring P is inserted into the valve body 20 , the valve body 20 is divided into a plurality of slits 23 to form a plurality of valve portions 22 .

In the gap processing member 11 in which the base portion 21 of the valve body 20 is adhered to one axial end surface of the cylindrical portion 12, each slit 23 extends from the center of the valve body 20 to the inner peripheral edge of the cylindrical portion 12. there is Therefore, the base end of each valve portion 22 is positioned along the inner peripheral edge of the cylindrical portion 12 . That is, each valve portion 22 extends from the outer surface side of the cylindrical portion 12 toward the center. Each valve portion 22 is flexurally deformable. Further, each valve portion 22 is compressively deformable in the direction connecting the distal end and the proximal end, that is, in the thickness direction of the cylindrical portion 12, and has a reaction force to return to the original shape when compressed.

When the wiring P is not inserted through the valve body 20 , the valve body 20 closes the insertion hole 13 of the tubular portion 12 . On the other hand, when the wiring P is inserted through the valve body 20, the valve body 20 is flexurally deformed and compressively deformed. It is designed to

Next, a through-hole processing structure using the gap processing member 11 having the above configuration will be described.
As shown in FIG. 1 or FIG. 3, the wiring P is inserted into the through hole Wa of the wall W, and the gap S between the inner peripheral surface of the through hole Wa and the outer peripheral surface of the wiring P has a A cylindrical portion 12 of the gap processing member 11 is installed. Assuming that the direction in which the wiring P penetrates the wall W is the penetration direction, the dimension in the axial direction of the cylindrical portion 12 is shorter than the length of the through hole Wa in the penetration direction.

The cylindrical portion 12 and the valve body 20 are radially compressed from the outer surface side. The outer surfaces of the cylindrical portion 12 and the valve body 20 are in close contact with the inner peripheral surface of the through hole Wa. By inserting the wiring P through the valve body 20 , a passage opening 25 for the wiring P is formed between the valve portions 22 in the valve body 20 . That is, the wiring P passes through the passage opening 25 .

Each valve portion 22 is radially compressed between the base portion 21 and the wiring P. As shown in FIG. The tip surface of each valve portion 22 is in close contact with the outer surface of the wiring P. As shown in FIG. A gap S between the inner peripheral surface of the through hole Wa and the outer peripheral surface of the wiring P is substantially entirely closed by the gap processing member 11 . If there is a slight gap between the outer peripheral surface of the wiring P and the tip side of each valve portion 22, the gap is filled with thermal expansion putty (not shown).

Next, a method for forming a through-hole processing structure using the gap processing member 11 will be described.
First, the wiring P is inserted into the through hole Wa, and the wiring P is passed through the wall W. As shown in FIG. Next, the gap processing member 11 is widened from the dividing slit 14 and the half-dividing slit 24 in the gap processing member 11, and the insertion hole 13 is opened over the entire axial direction of the gap processing member 11. As shown in FIG. Then, the wiring P is passed through the splitting slit 14 and the half-dividing slit 24 outside the wall W, and the wiring P is accommodated in the insertion hole 13 . After that, the expanded state of the gap processing member 11 is released, and the gap processing member 11 is closed. Then, the gap processing member 11 is attached to the outside of the wiring P. As shown in FIG. At this time, the valve body 20 is divided into a plurality of valve portions 22, and the tip side of each valve portion 22 contacts the outer surface of the wiring P. As shown in FIG.

Subsequently, the gap processing member 11 is slid along the wiring P toward the through hole Wa, and the gap processing member 11 is inserted into the gap S between the inner peripheral surface of the through hole Wa and the outer peripheral surface of the wiring P. do. At this time, if the diameter of the through hole Wa is slightly smaller than the outer diameters of the tubular portion 12 and the valve body 20, as indicated by the two-dot chain line in FIG. It is inserted into the gap S while being slightly compressed and deformed in the thickness direction of the shaped portion 12 . When the tubular portion 12 and the valve body 20 are inserted into the clearance S of the through hole Wa, the tubular portion 12 is moved back to its original shape by the reaction force of the compressed and deformed tubular portion 12 and the valve body 20. And the outer surface of the valve body 20 is in close contact with the inner peripheral surface of the through hole Wa. If the diameter of the through hole Wa is slightly larger than the outer diameters of the cylindrical portion 12 and the valve body 20, the cylindrical portion 12 and the valve body 20 are inserted into the gap S without being compressed and deformed in the thickness direction.

Also, in the valve body 20 , each valve portion 22 is compressed and deformed in the thickness direction of the cylindrical portion 12 . When the valve body 20 is inserted into the gap S of the through hole Wa, the tip end surface of the valve part 22 comes into close contact with the outer peripheral surface of the wiring P due to the reaction force of the valve body 20 trying to return to its original shape. Then, the gap processing member 11 is installed on the wall W. As shown in FIG.

Next, the operation of the through-hole processing structure of the wall W will be described.
Now, in a building in which a through-hole processing structure is provided in the through-hole Wa of the wall W, if a fire or the like breaks out on one wall surface side of the wall W, the wiring P and other items will burn and smoke will be generated. At this time, the through hole Wa is closed by the close contact of the cylindrical portion 12 to the inner peripheral surface of the through hole Wa, the close contact of the valve portion 22 to the outer peripheral surface of the wiring P, and the thermal expansion putty. is prevented from becoming a smoke path, and the inconvenience of the smoke traveling to the other wall surface side of the wall W is eliminated.

Further, the wiring P is burned, and the gap treatment member 11 and the exposed surface side of the thermal expansion putty are heated by the heat generated by the fire or the like. Then, the gap processing member 11 and the thermal expansion putty expand. At this time, between the tubular portion 12 and the valve body 20 of the gap processing member 11, the tubular portion 12 has a larger coefficient of thermal expansion than the valve body 20. inflate greatly. Further, when the wiring P is burned, the gap treatment member 11 is heated from the inner surface, and the thermal expansion putty is also heated. Then, the gap processing member 11 and the thermal expansion putty expand from the inner surface side. The gap treating member 11 and the thermal expansion putty which are heated expand in the axial direction and the thickness direction of the cylindrical portion 12, crushing the wiring P and hermetically closing the through hole Wa.

According to the above embodiment, the following effects can be obtained.
(1-1) The tubular portion 12 and the valve portion 22 of the gap processing member 11 are made of a foam having a reaction force to return to the original shape when compressed. Therefore, when the diameter of the through hole Wa is smaller than the outer diameter of the cylindrical portion 12, the outer surface of the cylindrical portion 12 can be brought into close contact with the inner peripheral surface of the through hole Wa, and the tip of the valve portion 22 can be side can be brought into close contact with the outer peripheral surface of the wiring P. Since the cylindrical portion 12 is less likely to bend than the valve portion 22, the shape of the cylindrical portion 12 can be maintained, for example, compared to the case where the cylindrical portion 12 is made of a material that is easily bent like the valve portion 22. The insertability of the tubular portion 12 into the gap S of the through hole Wa is improved.

(1-2) The valve portion 22 is formed by dividing the valve body 20 into the base portion 21 and the valve portion 22 by the slit 23 . Therefore, it is easy to form the valve portion 22 in the valve body 20 .
(1-3) The cylindrical portion 12 and the valve portion 22 of the gap processing member 11 each have thermal expansion performance. Therefore, when a fire or the like occurs in a building in which a through hole treatment structure is provided in the through hole Wa of the wall W, the gap treatment member 11 is thermally expanded to hermetically close the through hole Wa. As a result, the gap S between the outer peripheral surface of the wiring P and the inner peripheral surface of the through hole Wa serves as a path for heat and smoke, and the problem of heat and smoke being transmitted to the other wall surface side of the wall W is eliminated.

(1-4) The coefficient of thermal expansion of the cylindrical portion 12 constituting the gap processing member 11 is made larger than the coefficient of thermal expansion of the valve body 20 . By making the coefficient of thermal expansion of the cylindrical portion 12 larger than the coefficient of thermal expansion of the valve body 20, even if there is a space between the wiring P and the cylindrical portion 12, the gap S is sealed by the thermally expanded cylindrical portion 12. Easy to close.

(1-5) The gap processing member 11 is formed by bonding the cylindrical portion 12 and the valve body 20 together. Therefore, it is easy to manufacture the gap processing member 11 including the tubular portion 12 and the valve body 20 having different degrees of foaming.

(1-6) The cylindrical portion 12 of the gap processing member 11 and the valve body 20 each have a reaction force to return to their original shapes when compressed. Therefore, even if the opening position of the through-hole Wa is shifted on both sides of the through-hole Wa in the through-hole Wa and the dimensions of the gap S are different on both sides of the through-hole Wa, the tubular portion 12 and the valve body 20 are compressed to form the gap. The gap S can be closed by deforming following the size of S. Since the gap processing member 11 deforms following the size of the gap S, the gap S can be closed without bending the wiring P.

(Second embodiment)
Next, a second embodiment in which the gap processing member and the through-hole processing structure of the partition are embodied will be described with reference to FIGS. 4 and 5. FIG. In addition, in the second embodiment, detailed descriptions of the same parts and overlapping parts as those of the first embodiment will be omitted.

As shown in FIG. 4 , the gap processing member 31 of the second embodiment has a tubular portion 12 and valve portions 22 provided at both axial ends of the tubular portion 12 . The valve portion 22 is provided by adhering the valve body 20 to the axial end surface of the tubular portion 12 .

As shown in FIG. 5, the through hole treatment structure using the gap treatment member 31 of the second embodiment is installed in a hollow wall 40 as a partition. The hollow wall 40 is composed of a plurality of erected studs 41 and a plurality of pairs of partition walls 42 erected so as to sandwich the studs 41 . A hollow portion 43 is formed between a pair of partition walls 42 facing each other with the stud 41 interposed therebetween. A through hole 44 is formed in the hollow wall 40 for the wiring P to pass through. The through hole 44 is formed by connecting the circular hole 42 a formed in each partition wall 42 and the hollow portion 43 .

The wiring P is inserted through the through-hole 44, and the cylindrical gap processing member 31 is placed in the gap S between the inner peripheral surface of the hole 42a of the partition wall 42 and the outer peripheral surface of the wiring P in the through-hole 44. Both ends of the portion 12 and the valve body 20 are installed. The tubular portion 12 and the pair of valve bodies 20 are radially compressed from the outer peripheral surface side. The outer peripheral surfaces of the cylindrical portion 12 and the pair of valve bodies 20 are in close contact with the inner peripheral surface of the hole 42 a of the partition wall 42 . In addition, by inserting the wiring P through the valve body 20 , a passage opening 25 for the wiring P is formed between the valve portions 22 in each valve body 20 . That is, the wiring P passes through the passage opening 25 .

The positions of the holes 42 a of the pair of partition walls 42 may be shifted in the axial direction of the cylindrical portion 12 . In this case, the positions of one end and the other end of the tubular portion 12 in the axial direction are also shifted. Then, in each hole 42a, the gap S between the inner peripheral surface of the hole 42a and the outer peripheral surface of the wiring P has both a narrowed position and a widened position. In the hole 42a on the lower right side in FIG. 5, the cylindrical portion 12 and the valve body 20 are further compressed in the thickness direction at the portion where the gap S is narrowed, and the gap S is narrowed in the hole 42a on the upper right side in FIG. Compression of the tubular portion 12 and the valve body 20 is weakened at the widened portion.

Therefore, according to the second embodiment, the following effects can be obtained in addition to the effects (1-1) to (1-5) described in the first embodiment.
(2-1) The gap processing member 31 includes valve portions 22 at both axial ends of the cylindrical portion 12 . Therefore, both ends of the through-hole 44 in the through-hole direction can be closed by the valve portion 22 .

(2-2) The cylindrical portion 12 of the gap processing member 31 and the valve body 20 each have a reaction force to return to their original shapes when compressed. Therefore, even if the positions of the holes 42 a are shifted on both sides of the cylindrical portion 12 in the axial direction and the dimensions of the gap S are different, the gap S can be closed by compressing the cylindrical portion 12 and the valve body 20 . Since the gap processing member 31 deforms following the size of the gap S, the gap S can be closed without bending the wiring P.

(Third embodiment)
Next, a third embodiment in which the gap processing member and the through-hole processing structure of the partition are embodied will be described with reference to FIGS. 6 and 7. FIG. In the third embodiment, detailed descriptions of the same parts and overlapping parts as those of the first embodiment will be omitted.

As shown in FIG. 7, the gap processing member 51 of the third embodiment includes a tubular portion 52 arranged inside the through hole Wa so as to surround the wiring P, and an inner surface of the tubular portion 52 and the wiring P. and a closing portion 53 that is arranged in the gap S between the outer peripheral surface of and closes the gap S. The tubular portion 52 and the closing portion 53 are each made of a foam having thermal expansion performance, and are made of the same material as in the first embodiment.

The cylindrical portion 52 and the closing portion 53 are foamed bodies, but have different degrees of foaming. Specifically, the cylindrical portion 52 has a lower degree of foaming than the closing portion 53 . For this reason, the cylindrical portion 52 is less likely to be compressed and deformed than the closing portion 53 and is less likely to flex. In other words, the closing portion 53 is more likely to be compressed and deformed than the tubular portion 52 and is more likely to bend.

As shown in FIG. 6, the closing portion 53 is cylindrical. The closing portion 53 has a concentric cylindrical shape having the same central axis as that of the cylindrical portion 52 . The outer diameter of the closing portion 53 is smaller than the inner diameter of the cylindrical portion 52 , or the outer diameter of the closing portion 53 is the same as the inner diameter of the cylindrical portion 52 .

Next, a through-hole processing structure using the gap processing member 51 having the above configuration will be described.
As shown in FIG. 7, the wiring P is inserted into the through hole Wa of the wall W, and the clearance processing member 51 is inserted into the gap S between the inner peripheral surface of the through hole Wa and the outer peripheral surface of the wiring P. A tubular portion 52 is provided. A blocking portion 53 is provided between the inner surface of the cylindrical portion 52 and the outer peripheral surface of the wiring P. As shown in FIG. The tubular portion 52 and the closing portion 53 are compressed in the thickness direction of the tubular portion 52 . Therefore, the outer peripheral surface of the cylindrical portion 52 is in close contact with the inner peripheral surface of the through hole Wa. Further, the blocking portion 53 is compressed between the cylindrical portion 52 and the wiring P by inserting the wiring P through the blocking portion 53 . The inner peripheral surface of the closing portion 53 is in close contact with the outer surface of the wiring P. As shown in FIG. A gap S between the inner peripheral surface of the through hole Wa and the outer peripheral surface of the wiring P is substantially entirely closed by the gap processing member 51 .

Therefore, according to the third embodiment, the following effects can be obtained in addition to the effects (1-1), (1-3), and (1-6) described in the first embodiment.
(3-1) The gap processing member 51 of the third embodiment has a cylindrical closing portion 53 that is in close contact with the outer peripheral surface of the wiring P so as to surround the wiring P. As shown in FIG. Therefore, the gap S between the inner peripheral surface of the through hole Wa and the outer peripheral surface of the wiring P can be easily closed by the gap processing member 51 .

(Fourth embodiment)
Next, a fourth embodiment in which the gap treatment member and the through-hole treatment structure of the partition body are embodied will be described with reference to FIG. In addition, in the fourth embodiment, detailed descriptions of the same parts and overlapping parts as those of the first embodiment will be omitted.

The gap processing member 61 of the fourth embodiment includes a cylindrical portion 62 disposed inside the through hole Wa so as to surround the wiring P, and a plurality of protrusions protruding from the inner peripheral surface of the cylindrical portion 52. a portion 63; The tubular portion 62 and the protruding portion 63 are each made of foam having thermal expansion performance, and are made of the same material as in the first embodiment.

The tubular portion 62 and the projecting portion 63 are foamed bodies, but have different foaming degrees. Specifically, the tubular portion 62 has a lower foaming degree than the projecting portion 63 . The tubular portion 62 is compressively deformable in the thickness direction of the tubular portion 62 . Moreover, it is less likely to be compressed and deformed than the projecting portion 63 and is less likely to bend. In other words, the projecting portion 63 is more likely to be compressed and deformed than the cylindrical portion 62 and is more likely to bend.

Each of the plurality of protrusions 63 is block-shaped. The plurality of protruding portions 63 are arranged at equal intervals in the circumferential direction of the cylindrical portion 62 with a slight gap therebetween. Each protruding portion 63 protrudes from the inner surface of the tubular portion 62 toward the center of the tubular portion 62 . Each protruding portion 63 is in close contact with the outer peripheral surface of the wiring P, similarly to the valve portion 22 of the first embodiment.

Next, a through-hole processing structure using the gap processing member 61 having the above configuration will be described.
The wiring P is inserted into the through hole Wa of the wall W, and a gap processing member 61 is installed in the gap S between the inner peripheral surface of the through hole Wa and the outer peripheral surface of the wiring P. As shown in FIG. A plurality of projecting portions 63 are arranged between the inner peripheral surface of the cylindrical portion 62 and the outer peripheral surface of the wiring P. As shown in FIG. The tubular portion 62 and the projecting portion 63 are compressed in the thickness direction of the tubular portion 62 from the outer surface side. Therefore, the outer surface of the cylindrical portion 62 is in close contact with the inner peripheral surface of the through hole Wa. In addition, by inserting the wiring P between the tips of the projecting portions 63, each projecting portion 63 is compressed in the thickness direction of the tubular portion 62 between the tubular portion 62 and the wiring P. ing. The tip surface of the projecting portion 63 is in close contact with the outer peripheral surface of the wiring P. As shown in FIG. A gap S between the inner peripheral surface of the through hole Wa and the outer peripheral surface of the wiring P is substantially entirely closed by the gap processing member 61 . Therefore, the plurality of protruding portions 63 also function as blocking portions that block the inner surface of the tubular portion 62 and the outer peripheral surface of the wiring P. As shown in FIG.

A slight gap is formed between the projecting portions 63 adjacent to each other in the circumferential direction of the cylindrical portion 62, and the gap is filled with the thermal expansion putty.
Therefore, according to the fourth embodiment, in addition to the effects (1-1), (1-3), (1-4), and (1-6) described in the first embodiment, the following effect can be obtained.

(4-1) The wiring P can be supported from the entire circumferential direction by the plurality of projections 63 of the gap processing member 61, and the wiring P can be stably supported in the vicinity of the central axis of the through hole Wa.
Each embodiment can be modified and implemented as follows. Each embodiment and the following modifications can be implemented in combination with each other within a technically consistent range.

○ As shown in FIG. 9 , in the gap processing member 11 of the first embodiment, the outer edge of the valve portion 22 is configured to protrude from the outer surface of the tubular portion 12 , and the valve portion 22 extends from the outer surface of the tubular portion 12 . An annular flange portion 26 may be provided by the projecting portion. The flange portion 26 is provided over the entire circumferential direction of the tubular portion 12 . In addition, the valve body 20 is thinner than that of the first embodiment, and is configured to be flexurally deformable.

As shown in FIG. 10, in the through-hole processing structure using the gap processing member 11 having the flange portion 26, the flange portion 26 is provided on one side of the wall W in the penetration direction so as to cover the periphery of the through-hole Wa. It abuts on the surface of the wall W. Further, each valve portion 22 of the valve body 20 is compressed and deformed in the thickness direction of the tubular portion 12 as well as flexurally deformed in the same manner as in the first embodiment. Then, the tip surface of the valve portion 22 comes into close contact with the outer peripheral surface of the wiring P due to the reaction force of the valve body 20 trying to return to its original shape.

In this configuration, if the diameter of the through hole Wa is slightly larger than the outer diameter of the tubular portion 12, the tubular portion 12 is inserted into the gap S without being compressed and deformed in the thickness direction. As a result, a gap K is formed between the outer surface of the cylindrical portion 12 and the inner peripheral surface of the through hole Wa, but the gap K can be covered with the flange portion 26 from the front side.

(circle) in 1st Embodiment, you may provide the flange part projected from the outer surface of the said cylindrical part 12 in the outer surface of the axial direction end of the cylindrical part 12 concerned. In this case, the flange portion may be made of foam and arranged in the through hole Wa. It is better if the outer peripheral surface of the flange portion is in close contact with the inner peripheral surface of the through hole Wa.

O In the first and second embodiments, the cylindrical portion 12 and the valve body 20 may be welded instead of being adhered, or may be adhered using a double-faced tape. Alternatively, the tubular portion 12 and the valve body 20 may be integrally molded.

○ In the third embodiment, as shown in FIG. 11, the closing portion 53 has a base material 55 surrounding the wiring P, protrudes from the base material 55 toward the inner peripheral surface of the through hole Wa, and A configuration including a plurality of blocking blocks 56 arranged side by side in a direction surrounding P may be employed. With this configuration, each of the plurality of blocking blocks 56 of the blocking portion 53 contacts a part of the inner peripheral surface of the through hole Wa. In addition, a plurality of blocking portions 53 are arranged side by side in the circumferential direction of the through hole Wa. In order to make the back side of the wall W invisible from the front side through each space opened between the blocking block bodies 56 adjacent in the direction surrounding the wiring P, the through holes Wa are formed so as to complement each space. Another closing portion 53 is arranged at a position shifted in the penetration direction.

(circle) in each embodiment, the valve part 22 may be a thin plate shape which can bend and deform.
(circle) in each embodiment, if the cylindrical parts 12, 52, and 62 are foams, they may not have thermal expansion performance.

(circle) in 1st and 2nd embodiment, the valve body 20 containing the valve part 22 does not need to have thermal expansion performance. Further, in the third embodiment, the closing portion 53 does not have to have thermal expansion performance. Furthermore, in the fourth embodiment, the projecting portion 63 may not have thermal expansion performance.

○ In the first and second embodiments, the valve body 20 and the cylindrical portion 12 may have the same coefficient of thermal expansion, or the coefficient of thermal expansion of the valve body 20 may be larger than the coefficient of thermal expansion of the cylindrical portion 12. You may Further, in the third embodiment, the closing portion 53 and the cylindrical portion 52 may have the same thermal expansion coefficient, or the closing portion 53 may have a thermal expansion coefficient larger than that of the cylindrical portion 52 . good too. Furthermore, in the fourth embodiment, the projection 63 and the cylindrical portion 62 may have the same coefficient of thermal expansion, or the coefficient of thermal expansion of the projection 63 may be larger than that of the cylindrical portion 62. good too.

O In the third embodiment, the closing portion 53 does not have to be cylindrical, and may be changed as appropriate as long as the space between the inner surface of the tubular portion 52 and the outer peripheral surface of the wiring P can be filled. For example, the closing portion 53 may be divided into two semicircular pieces, or may be divided into three or more pieces.

(circle) you may provide a through-hole processing structure in the wall W using the cylindrical member 70 shown to Fig.12 (a). The tubular member 70 is installed in a state of surrounding the wiring P in the gap S between the outer peripheral surface of the wiring P inserted through the through hole Wa and the inner peripheral surface of the through hole Wa.

The tubular member 70 includes a tubular portion 71 arranged inside the through hole Wa so as to surround the wiring P, and is provided at one end of the tubular portion 71 in the axial direction, and extends outward from the outer surface of the tubular portion 71 . and a flange portion 72 projecting out. The cylindrical member 70 is made of a foam having a reaction force to return to its original shape when compressed, and has thermal expansion performance. The tubular portion 71 has an insertion hole 71a extending therethrough in the axial direction. The cylindrical member 70 has a property that the outer surface is expanded and deformed by pressing from the inner side of the cylindrical portion 71 . The outer diameter of the cylindrical portion 71 is slightly smaller than the diameter of the through hole Wa, and the cylindrical portion 71 can be inserted into the through hole Wa without being press-fitted.

As shown in FIG. 12(a), when the through-hole processing structure is provided in the wall W using the tubular member 70, first, the tubular portion 71 of the tubular member 70 is inserted into the through-hole Wa. At this time, the tubular portion 71 is not compressed in the thickness direction.

As shown in FIG. 12(b), the wire P is inserted into the insertion hole 71a of the cylindrical portion 71. As shown in FIG. At this time, the diameter of the wiring P is made larger than the inner diameter of the tubular portion 71 . Then, the wire P is press-fitted into the insertion hole 71a, and the wire P presses the tubular portion 71 from the inside. Then, the diameter of the cylindrical portion 71 is expanded, and the outer surface of the cylindrical portion 71 is expanded and deformed. As a result, the outer surface of the tubular portion 71 is in close contact with the inner peripheral surface of the through hole Wa.

○ In the first embodiment, if the outer diameter of the cylindrical portion 12 is slightly smaller than the diameter of the through hole Wa, and the cylindrical portion 12 can be inserted into the through hole Wa without being press-fitted, the wire P is inserted into the insertion hole 13. is inserted to press the cylindrical portion 12 from the inside to expand the diameter thereof. Then, by pressing from the inside of the tubular portion 12, the diameter of the tubular portion 12 may be expanded along the thickness direction, and the outer surface of the tubular portion 12 may be brought into close contact with the inner peripheral surface of the through hole Wa. At this time, a part of the cylindrical portion 12 in the circumferential direction may be expanded and deformed in the thickness direction, or the entire circumferential direction may be expanded and deformed in the thickness direction.

In this case, when the tubular portion 12 is inserted into the through hole Wa, the tubular portion 12 is not compressed in the thickness direction. Then, the wiring P is inserted into the insertion hole 13 of the tubular portion 12 . At this time, the diameter of the wiring P is made larger than the inner diameter of the tubular portion 12 . Then, the wire P is press-fitted into the insertion hole 13, and the wire P presses the cylindrical portion 12 from the inside. Then, at least a part of the outer surface of the tubular portion 12 is expanded and deformed. As a result, the outer surface of the tubular portion 12 comes into close contact with the inner peripheral surface of the through hole Wa.

O In the first and second embodiments, locking grooves recessed from the outer surface are provided at the ends of the tubular portion 12 in the axial direction. A locking portion that locks into the locking groove is provided on the outer peripheral portion of the valve body 20 . The valve body 20 may be integrated with the cylindrical portion 12 by locking the locking portion in the locking groove.

(circle) in the gap processing member 11 of 1st and 2nd embodiment, you may make foaming degree of the cylindrical part 12 and the valve body 20 the same. In this case, the upper limit of the foaming degree is preferably up to 5 times, more preferably up to 2 times. When the tubular portion 12 and the valve body 20 have the same degree of foaming, the valve portion 22 is made thinner than the tubular portion 12 so that the valve portion 22 is more flexible than the tubular portion 12. . That is, the cylindrical portion 12 is made less flexible than the valve portion 22 .

In addition, the tubular portion 12 may be made less flexible than the valve portion 22 by making the tubular portion 12 and the valve body 20 have the same thickness and relatively differing only in the degree of foaming. The tubular portion 12 may be made less flexible than the valve portion 22 by adjusting both the thickness and the foaming degree of the tubular portion 12 and the valve body 20 .

○ In the gap processing member 51 of the third embodiment, the degree of foaming of the cylindrical portion 52 and the closed portion 53 may be the same. In this case, the upper limit of the foaming degree is preferably up to 5 times, more preferably up to 2 times. When the tubular portion 52 and the closed portion 53 have the same foaming degree, the closed portion 53 is made thinner than the tubular portion 52 so that the closed portion 53 is more flexible than the tubular portion 52 . do. That is, the tubular portion 52 is made less flexible than the closing portion 53 .

In addition, the cylindrical portion 52 may be made less flexible than the closing portion 53 by making the thickness of the cylindrical portion 52 and the closing portion 53 the same, and by making the degree of foaming relatively different. Both the thickness and the degree of foaming of the tubular portion 52 and the closed portion 53 may be adjusted to make the tubular portion 52 less flexible than the closed portion 53 .

○ In the gap processing member 61 of the fourth embodiment, the tubular portion 62 and the projecting portion 63 may have the same degree of foaming, or the tubular portion 62 and the projecting portion 63 may have both the thickness and the degree of foaming. The tubular portion 62 may be adjusted to be less flexible than the projecting portion 63 .

(circle) in each form, although the valve part 22 is fan-shaped, the shape of the valve part 22 may be changed suitably.
○ When the thickness of the wall W, that is, the dimension of the through hole Wa in the through hole Wa is large, the gap processing member 11 may be inserted into the gap S from both sides of the through hole Wa in the through hole Wa.

○ Any partition may be used. For example, it may be the floor.
(circle) the shape of the through-hole Wa is good also as polygonal shape, such as square shape.
○ A sleeve may be installed in the through hole Wa formed in the wall W, and the inside of the sleeve may be used as the through hole.

P... Wiring as penetrating member, S... Gap, W... Wall as partition, Wa, 44... Through hole, 11, 31, 51, 61... Gap processing member, 12, 52, 62, 71... Cylindrical part , 22... valve portion, 23... slit, 26, 72... flange portion, 53... closing portion, 63... projecting portion.

Claims (9)

A gap processing member installed in a state surrounding the through member in a gap between the outer peripheral surface of the through member inserted through the through hole provided in the partition and the inner peripheral surface of the through hole,
a tubular portion arranged inside the through hole so as to surround the through member;
a closing portion that closes a gap between the inner surface of the cylindrical portion and the outer peripheral surface of the penetrating member in the thickness direction of the cylindrical portion;
The cylindrical part and the closing part are made of a foam having a reaction force that returns to its original shape when compressed,
The gap processing member, wherein the tubular portion is less likely to undergo compression deformation than the closing portion. A gap processing member installed in a state surrounding the through member in a gap between the outer peripheral surface of the through member inserted through the through hole provided in the partition and the inner peripheral surface of the through hole,
a tubular portion arranged inside the through hole so as to surround the through member;
a plurality of valve portions that are integral with the tubular portion and extend from the outer surface side of the tubular portion toward the center along the thickness direction of the tubular portion;
The cylindrical portion and the valve portion are made of a foam having a reaction force that returns to its original shape when compressed,
The gap processing member, wherein the cylindrical portion is less likely to undergo compression deformation than the valve portion. 3. The gap processing member according to claim 1, wherein the cylindrical portion has thermal expansion performance. Assuming that a direction in which the through hole penetrates the partition is defined as a penetration direction, the partition has a flange portion covering the periphery of the through hole on one side of the partition in the penetration direction. The gap processing member according to item 1. Penetration of the partition, in which a penetrating member is inserted into a through hole provided in the partition, and a gap processing member surrounding the penetrating member is installed in a gap between an outer peripheral surface of the penetrating member and an inner peripheral surface of the through hole. A hole treatment structure,
The gap processing member is the gap processing member according to claim 1,
the cylindrical portion disposed in the gap is compressed in the thickness direction so that the outer surface of the cylindrical portion is in close contact with the inner surface of the through hole;
A through-hole treatment structure for a partition, wherein the closing portion is compressed in the thickness direction so that the closing portion is in close contact with the inner surface of the cylindrical portion and the outer peripheral surface of the penetrating member. In the original shape, the cylindrical portion has an outer shape that is larger than the inner shape of the through hole and has a hollow shape that is wider than the outer shape of the through member surrounded by the inner space,
6. The through-hole treatment structure for a partition according to claim 5, wherein the closing part has a hollow cylindrical shape having an inner space narrower than the outer shape of the penetrating member. A partitioning body in which a penetrating member is inserted through a through hole provided in the partitioning body, and a gap processing member is installed in a gap between an outer peripheral surface of the penetrating member and an inner peripheral surface of the through hole so as to surround the penetrating member. The through-hole treatment structure of
The gap processing member is the gap processing member according to claim 2,
The valve portion can form a passage opening through which the penetrating member passes by bending deformation or compression,
the cylindrical portion disposed in the gap is compressed in the thickness direction so that the outer surface of the cylindrical portion is brought into close contact with the inner peripheral surface of the through hole;
A structure for processing a through hole in a partition, wherein the through hole passes through the passage opening, and a tip end side of the valve portion is in close contact with an outer peripheral surface of the through member. 8. The through-hole treatment structure for a partition according to claim 5, wherein the cylindrical portion receives a pressing force from the inside of the cylindrical portion by the penetrating member. A partitioning body in which a penetrating member is inserted through a through hole provided in the partitioning body, and a gap processing member is installed in a gap between an outer peripheral surface of the penetrating member and an inner peripheral surface of the through hole so as to surround the penetrating member. The through-hole treatment structure of
The gap processing member has a tubular portion arranged inside the through hole so as to surround the through member,
The tubular portion is composed of a foam having a reaction force to return to its original shape when compressed, has thermal expansion performance, has an outer shape smaller than the inner shape of the through hole, and surrounds the through member. The outer surface is expandable and deformable by pressing from the inside of the cylindrical portion along the thickness direction of the cylindrical portion, and
The cylindrical portion disposed in the gap is pressed from the inside by the surrounding penetrating member and expanded and deformed in the thickness direction, so that the outer surface of the cylindrical portion is brought into close contact with the inner peripheral surface of the through hole. A through-hole processing structure for a partition body, characterized in that:

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