JP7444834B2 - Compartment penetrator - Google Patents

Description

The present invention relates to a compartment penetrator installed in a through hole formed in a compartment that divides the inside or outside of a building.

BACKGROUND ART Conventionally, a sleeve for a wall through hole described in Patent Document 1 has been known as a partition penetrating tool. The wall through-hole sleeve includes a cylindrical portion having a cut portion extending along the axial direction, and a gap filling portion made of an elastic body that covers the outer periphery of both ends of the cylindrical portion in the axial direction. The cylindrical portions can be overlapped by a predetermined amount near the cut portion.

According to the wall through-hole sleeve configured as described above, the cylindrical portion can be inserted into the through-hole formed in the wall with a predetermined overlap near the cut portion and the diameter reduced, making it easy to insert into the through-hole. . Further, after the cylindrical portion is inserted into the through hole, the shape of the cylindrical portion is restored to its original shape, and the gap filling portion is in contact with the inner circumferential wall of the through hole, thereby ensuring airtightness.

Patent No. 6132277

In the sleeve for a wall through-hole described in Patent Document 1, when the sleeve is installed in the through-hole, the end surfaces of the cut portion of the cylindrical portion (the end surface on one circumferential end side and the end surface on the other end side of the cylindrical portion in the circumferential direction) are in contact with each other. It is said that the shape of the cylindrical part can be maintained. However, if some external force is applied after installation, such as when pressure is applied from the radially outer side of the cylindrical part to the radially inward side while the cylindrical part is held in a cylindrical shape, the cylindrical part that was in contact with it will break. The end faces of the parts may become misaligned, making it impossible to maintain the cylindrical shape. If the cylindrical shape cannot be maintained, problems such as the sleeve for the wall through hole falling off from the through hole or the creation of a gap between the inner wall of the through hole and the sleeve for the wall through hole will occur.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a partition penetrating tool that can be easily installed in a through hole and that does not lose its shape after being installed in the through hole.

The compartment penetrating tool of the present invention is a compartment penetrating tool that is installed in a through hole formed in a compartment body that partitions the inside or outside of a building, and has a generally cylindrical shape and a penetrating main body that is inserted into the through hole. The penetrating main body portion is configured to be bendable radially inward, and has a plurality of inwardly folded portions arranged at intervals in the circumferential direction, and a portion extending in the circumferential direction between the plurality of inwardly folded portions. A plurality of extending circular arc portions.

According to this configuration, when inserting the partition penetrating tool into the through hole, by bending the inwardly folded portion radially inward, the arcuate portions approach each other and the outer diameter of the entire penetrating body portion can be reduced. , it becomes easy to insert into the through hole, and after inserting into the through hole, when the inwardly folded part is expanded outward and the through body is restored to a substantially cylindrical shape, the entire through body is stretched into a substantially cylindrical shape. This makes the shape less likely to collapse.

Further, the compartment penetrating tool of the present invention is a compartment penetrating tool installed in a through hole formed in a compartment body that partitions the inside or outside of a building, and has a substantially cylindrical shape and is inserted into the through hole. The penetrating main body includes an inward folding portion configured to be bendable radially inward, and a ridge provided circumferentially apart from the inward folding portion and bendable radially outward. It is configured to include a folding hinge portion and a pair of circular arc portions extending from one end and the other end in the circumferential direction of the inward folding portion to the mountain folding hinge portion.

According to this configuration, when inserting the partition penetrating tool into the through hole, by bending the inwardly folded portion radially inward, the arcuate portions approach each other and the outer diameter of the entire penetrating body portion can be reduced. , it becomes easy to insert into the through hole, and after inserting into the through hole, when the inwardly folded part is expanded outward and the through body is restored to a substantially cylindrical shape, the entire through body is stretched into a substantially cylindrical shape. This makes the shape less likely to collapse.

Further, a sealing member is provided on at least a portion of the outer circumferential surface of the penetrating main body in the axial direction, the sealing member extending in the circumferential direction and sealing between the outer circumferential surface of the penetrating main body and the inner circumferential surface of the through hole. It can also be configured like this.

According to this configuration, since the sealing member extending in the circumferential direction is provided on at least a portion of the outer circumferential surface of the through-hole main body in the axial direction, when installed in the through-hole, the inner wall of the through-hole and the through-hole main body Since the space can be sealed with the outer peripheral surface of the partition, it is easy to maintain airtightness between the spaces partitioned by the partition.

According to the present invention, it is possible to obtain a partition penetrator that can be easily installed in a through hole and that does not lose its shape after being installed in the through hole.

FIG. 1 is a perspective view showing a compartment penetrator according to a first embodiment of the present invention. It is a front view of the same division penetrator. It is a figure which shows the state which deformed the same division penetrator. It is a figure which shows the state in which the same division penetrator is installed in the through-hole. FIG. 7 is a front view showing a compartment penetrator according to a second embodiment of the present invention. It is a figure which shows the state which deformed the same division penetrator. FIG. 7 is a front view showing a compartment penetrator according to another embodiment of the present invention. FIG. 7 is a front view showing a compartment penetrator according to another embodiment of the present invention.

A compartment penetrator 1 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 4.

As shown in FIG. 1, the compartment penetrator 1 has a cylindrical shape and can be inserted into a through hole 30a formed in a compartment 30 of a building. Specifically, the partition penetrating tool 1 includes a cylindrical penetrating main body 2 and a sealing member 3 provided on the outer peripheral surface of the penetrating main body 2.

As shown in FIG. 2, the penetrating main body portion 2 is a cylindrical portion configured to be bendable radially inward at multiple locations spaced apart in the circumferential direction. Further, the penetrating main body portion 2 is a cylindrical portion configured such that when a plurality of circumferentially spaced locations are bent radially inward, the maximum outer diameter becomes smaller than before bending. Specifically, the penetrating body portion 2 is configured to be bendable radially inward, and includes a plurality of inwardly folded portions 4 spaced apart from each other in the circumferential direction, and a plurality of circular arcs extending between the inwardly folded portions 4. 5. In this embodiment, the inwardly folded portions 4 are spaced approximately 180 degrees apart in the circumferential direction. That is, the inwardly folded portions 4 are arranged to face each other in the radial direction of the penetrating main body portion 2 . Details of the inward folding portion 4 will be described later.

The penetrating main body portion 2 has a cylindrical portion configured in a cylindrical shape by connecting a plurality of cylindrical divided portions 7 extending along the circumferential direction in the circumferential direction, and connects the cylindrical divided portions 7 so as to be adjacent to each other in the circumferential direction. A cylindrical connecting portion 8 is provided. The cylindrical connecting portion 8 is configured to be more deformable than the cylindrical dividing portion 7. In other words, when a bending force is applied to the penetrating body portion 2, the cylindrical connecting portion 8 is configured to bend. Further, in this embodiment, the cylindrical dividing portion 7 and the cylindrical connecting portion 8 are made of resin. Specifically, the cylindrical division part 7 is made of a harder resin than the cylindrical connection part 8. Further, the penetrating main body portion 2 is configured such that a seal member 3 can be attached to the outer circumferential surface.

The cylindrical divided portion 7 is a portion extending in an arc shape along the circumferential direction. Moreover, the cylindrical division part 7 is arranged with a gap in the circumferential direction between other cylindrical division parts 7 adjacent in the circumferential direction. Specifically, the cylindrical division part 7 includes an inward fold division part 11 that constitutes the inward fold part 4 and an arc division part 12 that constitutes the circular arc part 5 . In this embodiment, the arc portion 5 is constituted by one arc division portion 12 . Further, the arc dividing portion 12 is configured to be unbendable. In other words, the arc-divided portion 12 does not include a portion that becomes a joint when bent in the middle of the circumferential direction.

The arc division part 12 includes an arc main body part 13 extending in an arc shape, and mountain-fold attachment parts 14 located at both ends of the arc division part 12 in the circumferential direction and to which the cylindrical connecting part 8 is attached. The mountain-fold attachment portions 14 of this embodiment are both end surfaces of the arc main body portion 13 in the circumferential direction. Furthermore, a mountain-fold connecting portion 20, which will be described later, is attached to the mountain-fold attaching portion 14.

The inward-folding dividing portion 11 is an arc-shaped portion that constitutes the inward-folding portion 4 . Further, the inward-folding division part 11 is provided at the inward-folding main body part 16 extending in an arc shape, and at the end part of the circumferential direction edge of the inward-folding main body part 16 that is adjacent to the circular arc-dividing part 12 in the circumferential direction. and an inward-folding attachment section 17 provided at the end of the circumferential end of the inward-folding main body section 16 that is opposite to the end adjacent to the arc dividing section 12 in the circumferential direction. and. The configuration of the mountain-fold attachment portion 14 is similar to that of the mountain-fold attachment portion 14 provided on the arc-divided portion 12 . Further, the inward fold attachment portion 17 is an end surface on the opposite side to the side where the mountain fold attachment portion 14 is located, of both end surfaces in the circumferential direction of the inward fold division portion 11 .

The cylindrical connecting portion 8 is a portion that connects the cylindrical divided portions 7 adjacent to each other in the circumferential direction. Further, the cylindrical connecting portion 8 is a joint portion that bendably connects the cylindrical divided portions 7 to each other. Specifically, the cylindrical connecting portion 8 is an elongated body having elasticity. The cylindrical connecting portion 8 of this embodiment is an elongated body made of soft resin. Further, the cylindrical connecting portion 8 of this embodiment is an elongated body extending along the axial direction of the penetrating main body portion 2. The cylindrical connecting portion 8 has elasticity, and is configured so that when bent, the cylindrical connecting portion 8 tends to return to the state before being bent due to the elasticity. The cylindrical connecting portion 8 connects the ends of circumferentially adjacent cylindrical divided portions 7 among the plurality of cylindrical divided portions 7 arranged so as to have a cylindrical shape as a whole. Further, the cylindrical connecting portion 8 includes a mountain-fold connecting portion 20 that connects circumferentially adjacent cylindrical divided portions 7 so that they can be mountain-folded, and a mountain-fold connecting portion 20 that connects the cylindrical divided portions 7 that are adjacent to each other in the circumferential direction so that they can be folded in a valley. It includes an inward fold connecting part 21 that connects. Further, the cylindrical connecting portion 8 is arranged between the cylindrical divided portions 7 so that the penetrating main body portion 2 is in a natural state when it is not bent.

The mountain-fold connecting portion 20 connects the cylindrical divided portions 7 that are adjacent to each other in the circumferential direction in a manner that allows mountain-folding. In this embodiment, the mountain-fold connecting portion 20 connects the arcuate dividing portion 12 and the inward-folding portion 11 disposed adjacent to the arcuate dividing portion 12 in the circumferential direction in a manner capable of mountain-folding. Specifically, the mountain-fold connecting portion 20 is arranged across the mountain-fold attachment portion 14 of the circular arc division portion 12 and the mountain-fold attachment portion 14 of the inward-fold division portion 11 . That is, the mountain-fold connecting portion 20 extends from an end surface on one side in the circumferential direction of one of the cylindrical divided portions 7 adjacent to each other in the circumferential direction to an end surface on the other side in the circumferential direction of the other cylindrical divided portion 7. It is provided so as to extend over the entire length. In this embodiment, the cylindrical division part 7 and the cylindrical connection part 8 are integrally formed. That is, the mountain-fold connecting portion 20 of this embodiment is attached to the mountain-fold attachment portion 14 by thermal welding.

In this embodiment, the mountain-fold connecting portion 20 is bendable (mountain-foldable) so that the folds face radially outward. That is, the penetrating main body portion 2 can be mountain-folded in a part of the circumferential direction by mountain-folding the mountain-fold connecting portion 20 with the cylindrical division portion 7 connected to the mountain-fold connecting portion 20. It is configured. Further, the mountain-fold connecting portion 20 constitutes a mountain-fold portion 22 that is a portion of the penetrating main body portion 2 that can be mountain-folded.

The inward fold connecting portion 21 connects the adjacent cylindrical divided portions 7 to each other so as to be inward foldable. In this embodiment, the mountain-fold connecting portion connects the inward-fold division portions 11 that are arranged adjacent to each other so as to be valley-foldable. The inward fold connecting part 21 is arranged from the inward fold attachment part 17 of one inward fold division part 11 to the inward fold attachment part 17 of the other inward fold division part 11 among both inward fold division parts 11 to be connected. Ru. That is, the inward fold connecting portion 21 extends from the end surface on one side in the circumferential direction of one of the adjacent cylindrical divided portions 7 to the end surface on the other side in the circumferential direction of the other cylindrical divided portion 7. It is set up like this. In the present embodiment, the inward folding connecting portion 21 is arranged at a midpoint in the circumferential direction of the inward folding portion 4 . Further, in this embodiment, the inward-folding connecting portion 21 is attached to the inward-folding attaching portion 17 by thermal welding.

In this embodiment, the inward fold connecting portion 21 is bendable (valley foldable) so that the folds face radially inward. That is, the penetrating main body part 2 can be valley-folded in part in the circumferential direction by valley-folding the inward-folding connecting part 21 with the cylindrical division part 7 connected to the inward-folding connecting part 21. It is configured. Further, the inward fold connecting portion 21 constitutes a valley fold portion 23 that is a portion of the penetrating main body portion 2 that can be valley folded.

The inward folding portion 4 is a portion of the penetrating main body portion 2 that can be bent radially inward. In this embodiment, the inwardly folded portions 4 are arranged at two locations facing each other in the radial direction of the penetrating main body portion 2 . Specifically, the inward folding portion 4 includes one or more portions of the penetrating body portion 2 that can be valley folded, and is configured to be foldable radially inward. In this embodiment, the inward fold portion 4 is connected to a mountain fold connecting portion 20 provided at one circumferential end of one circular arc portion 5 and a mountain fold connecting portion 20 provided at the other circumferential end of the other circular arc portion 5. , a pair of inward fold division parts 11 and an inward fold connection part 21 arranged between the two mountain fold connection parts 20. Further, the inward fold portion 4 is a portion arranged to extend between the pair of circular arc portions 5. The inwardly folded portion 4 of this embodiment is a region from one end of one circular arc portion 5 in the circumferential direction to the other end of the circular arc portion 5 in the circumferential direction. The inwardly folded portion 4 is configured to be able to move the entire inwardly folded portion 4 radially inwardly of the penetrating body portion 2 by bending radially inwardly. Specifically, the inward folding portion 4 is folded so that the folds of the mountain fold connecting portion 20 face radially outward, and the folds of the inward folding connecting portion 21 are bent so as to face radially inward. The entire portion 4 moves radially inward.

The penetrating main body portion 2 as described above has a continuous cylindrical shape in the circumferential direction as a whole. Specifically, the penetrating main body portion 2 is arranged such that the circumferential ends of circumferentially adjacent cylindrical division portions 7 face each other in the circumferential direction. Further, the cylindrical connecting portion 8 is arranged to extend along the circumferential direction. Furthermore, the penetrating body portion 2 of this embodiment is configured such that the outer diameter of the region where the cylindrical division portion 7 is arranged and the outer diameter of the region where the cylindrical connecting portion 8 is arranged are equal in the circumferential direction. That is, the penetrating body portion 2 of this embodiment has no step formed on the outer circumferential surface. Further, the penetrating body portion 2 of this embodiment is configured such that the inner diameter of the region where the cylindrical division portion 7 is arranged and the inner diameter of the region where the cylindrical connecting portion 8 is arranged are equal in the circumferential direction. That is, the penetrating body portion 2 of this embodiment has no step formed on the inner circumferential surface.

In the mountain-fold portion 22, one end of the adjacent cylindrical divided portions 7 (for example, the mountain-fold attachment portion 14 of the circular arc division portion 12) and the other (for example, the mountain-fold attachment portion 14 of the inner-fold division portion 11) are They are arranged to face each other in the circumferential direction. Further, the mountain fold connecting portion 20 is arranged along the circumferential direction between the double mountain fold attaching portions 14.

In the valley fold portion 23, one and the other end portions of the adjacent cylindrical division portions 7 (in this embodiment, the inward fold attachment portions 17 of the inward fold division portions 11) are arranged to face each other in the circumferential direction. Further, the inward fold connecting portion 21 is arranged between both the inward fold attaching portions 17 along the circumferential direction.

Since the penetrating main body portion 2 has the above-described configuration, when receiving a force directed from the radially outer side toward the radially inner side, the cylindrical divided portions 7 can be restrained from being stretched against each other and from collapsing from the cylindrical shape. Specifically, since the ends of the cylindrical divided portion 7 are arranged to face each other in the circumferential direction, when a force is applied from the radially outer side to the radially inward side, the force is transferred to the periphery of the penetrating main body portion 2. It can be received as a force along the direction. Therefore, it is possible to suppress the application of a radially inward or radially outward force to the connecting portion, and it is possible to suppress bending of the cylindrical connecting portion 8, so that it is possible to suppress the shape of the entire penetrating main body portion 2 from collapsing.

Furthermore, since the ends of the cylindrical divisions 7 in the penetrating main body 2 are arranged with a slight gap in the circumferential direction, it is necessary to change the shape of the penetrating main body 2 from a cylindrical shape, as will be described later. In some cases, by locally applying a force directed radially inward to the connection point between the cylindrical division parts 7 (for example, the inward fold connection part 21), the state in which the cylindrical division parts 7 are tensed with each other is eliminated, and the cylindrical division part 7 is The connecting portion 8 can be reliably deformed.

The seal member 3 is a member provided on the outer circumferential surface of the penetrating main body portion 2 . Further, the seal member 3 is configured to seal between the inner wall of the through hole 30a and the outer circumferential surface of the through body portion 2 when inserted into the through hole 30a. Specifically, the sealing member 3 is made of foamed rubber, and when provided on the outer circumferential surface of the penetrating main body portion 2, the sealing member 3 is configured to have an outer diameter larger than an inner diameter of the through hole 30a. That is, when the seal member 3 is inserted into the through hole 30a, it is compressed by the through hole 30a and the through body portion 2, thereby sealing between the inner wall of the through hole 30a and the outer wall of the through body portion 2.

The sealing member 3 is provided around the outer circumferential surface of the penetrating main body 2 at least in part from one end in the axial direction to the other end of the penetrating main body 2 . In this embodiment, the sealing member 3 is provided from one end of the penetrating main body 2 in the axial direction to the other end. Further, the sealing member 3 is attached to the outer circumferential surface of the penetrating main body portion 2 by adhesive. Further, when the sealing member 3 is attached to the outer circumferential surface of the penetrating body 2 and the penetrating body 2 is deformed, the sealing member 3 can be deformed following the penetrating body 2 . That is, the seal member 3 has a shape that follows the outer circumferential surface of the penetrating main body portion 2 .

A method of inserting the partition penetrating tool 1 as described above into the through hole 30a formed in the partition body 30 will be explained with reference to FIGS. 3 and 4.

As shown in FIG. 3, the compartment penetrator 1 is deformed to have a smaller outer diameter before being inserted into the through hole 30a. Specifically, the partition penetrating tool 1 presses the arcuate portion 5 from the radially outer side toward the radially inner side against the bias of the cylindrical connecting portion 8, and presses the inwardly folded portion 4 radially inwardly. By pressing, the inwardly folded portion 4 of the penetrating main body portion 2 is bent radially inward, and the arcuate portion 5 is moved radially inward. Specifically, by bending the inward folding portion 4 radially inward, the penetrating main body portion 2 is released from being stretched in the circumferential direction, and the arcuate portions 5 move toward each other due to the radially inward force. , the outer diameter of the entire penetrating body portion 2 becomes smaller. Further, the sealing member 3 deforms following the deformation of the penetrating body portion 2, the portion provided on the outer circumferential surface of the inwardly folded portion 4 bends radially inward, and the portion provided on the outer circumferential surface of the circular arc portion 5 bends radially inward. Move radially inward. Therefore, the partition penetrating tool 1 deforms so that the overall outer diameter becomes smaller. In this embodiment, the compartment penetrator 1 deforms until its outer diameter becomes smaller than the inner diameter of the through hole 30a.

When the penetrating body portion 2 is deformed, the cylindrical connecting portion 8 is basically deformed and the entire shape of the penetrating body portion 2 is deformed. That is, when a portion of the penetrating body portion 2 in the circumferential direction is bent, the cylindrical connecting portion 8, which is softer than the cylindrical division portion 7, is bent. Note that the cylindrical division part 7 may be slightly deformed by the force that deforms the penetrating main body part 2.

As shown in FIG. 4, the compartment penetrator 1 that has been deformed to have a smaller outer diameter is inserted into the through hole 30a and restored to its cylindrical shape before deformation. In this embodiment, the partition body 30 in which the through hole 30a is formed is a hollow wall. The partitioning body 30 is, for example, a wall that partitions the inside and outside of a building, and is arranged between an inner wall 31 that is an inner wall of the building, an outer wall 32 that is an outer wall of the building, and between the outer wall 32 and the inner wall 31. It includes a heat insulating material 33, a waterproof sheet 34, and a structural plywood section 35 arranged inside the building from the waterproof sheet 34. The inner wall portion 31, the outer wall portion 32, and the structural plywood portion 35 are each made of rigid plate materials. Note that the configuration of the partition body 30 is not limited to the above-mentioned configuration, and for example, the waterproof sheet 34 may be placed outside the building from the structural plywood portion 35.

The compartment penetrating tool 1 is inserted into the through hole 30a in a state where the outer diameter is smaller than the inner diameter of the through hole 30a, and after the insertion is completed, it is restored to the cylindrical state before deformation by the restoring force of the cylindrical connecting part 8. be done. Specifically, after the cylindrical connecting portion 8 is inserted into the through hole 30a due to its elasticity, it is no longer subjected to force from the radial outside, so that it attempts to restore its unbendable state (flat plate shape) to each cylindrical divided portion. 7 is biased into an overall cylindrical arrangement. That is, the cylindrical connecting portion 8 elastically urges the cylindrical division portion 7 so that the outer diameter of the penetrating main body portion 2 changes from the reduced state to the original state (the state where the outer diameter is large). Following the restoration of the shape of the penetrating body portion 2, it is restored to its original state (state with a large outer diameter).

Since the outer diameter of the compartment penetrating tool 1 in its natural state is larger than the inner diameter of the through hole 30a, the sealing member 3 of the compartment penetrating tool 1 that is inserted into the through hole 30a and attempting to restore its shape before deformation will be damaged during the restoration process. At this stage, it comes into contact with the inner wall of the through hole 30a. Even after the sealing member 3 abuts against the inner wall of the through hole 30a, the compartment penetrator 1 (the penetrating main body 2) tries to restore to the state before deformation. , is compressed by being sandwiched between the radially inward penetrating body portion 2 and the inner wall of the radially outward through hole 30a. In particular, among the inner walls of the through hole 30a, the sealing member 3 that is in contact with the inner wall portion 31, the outer wall portion 32, and the structural plywood portion 35, which are rigid plate materials, is compressed by being sandwiched between the through body portion 2 and the plate material. be done. Therefore, the sealing member 3 can seal between the outer circumferential surface of the penetrating body portion 2 and the inner wall of the through hole 30a.

After the partition penetrating tool 1 is inserted into the through hole 30a and restored to its pre-deformed shape, the entire penetrating main body 2 is stretched into a cylindrical shape. Specifically, as the inwardly folded portion 4 expands outward, the penetrating body portion 2 is restored to its cylindrical shape, and the force directed from the radially outer side to the radially inward side is transmitted as a force along the circumferential direction of the penetrating body portion 2. You will be able to do this. Therefore, each cylindrical division part 7 in the penetrating main body part 2 becomes in a state of tension, and the shape of the partition penetrating tool 1 becomes difficult to collapse. Furthermore, in this embodiment, the cylindrical connecting part 8 biases the cylindrical division part 7 to be arranged in a cylindrical shape, so even if it receives some external force, the shape of the partition penetrating tool 1 is maintained by the bias. Therefore, the tension and bias combine to prevent the shape of the partition penetrating tool 1 from collapsing.

According to the compartment penetrating tool 1 configured as described above, when inserting the compartment penetrating tool 1 into the through hole 30a, by bending the inwardly folded part 4 radially inward, the arcuate parts 5 approach each other and the penetrating body Since the outer diameter of the entire portion 2 can be made small, it can be easily inserted into the through hole 30a, and after being inserted into the through hole 30a, the inwardly folded portion 4 is expanded outward to form the through body portion 2 into a substantially cylindrical shape. When restored to its shape, the entire penetrating main body portion 2 becomes stretched into a substantially cylindrical shape, making it difficult for the shape to collapse.

Further, since the sealing member 3 extending in the circumferential direction is provided on at least a part of the outer circumferential surface of the through-hole main body 2 in the axial direction, when installed in the through-hole 30a, the inner wall of the through-hole 30a and the through-hole main body Since it is possible to seal between the outer circumferential surfaces of the partitions 2 and 2, it is easy to maintain airtightness between the spaces partitioned by the partitions 30.

Furthermore, since the pair of inward folding parts 4 are arranged to face each other in the radial direction, the maximum outer diameter of the penetrating body part 2 can be reduced when the inward folding parts 4 are bent radially inward. , it becomes easy to insert into the through hole 30a.

Further, since the arcuate portion 5 is configured to be unbendable, when force is applied to reduce the diameter of the penetrating body portion 2, the inward fold portion 4 can be reliably bent radially inward. It becomes easier to insert the partition penetrator 1 into the through hole 30a.

Furthermore, the penetrating body portion 2 includes a cylindrical portion that is formed into a cylindrical shape by connecting a plurality of cylindrical division portions 7 in the circumferential direction, and a cylindrical connection portion 8 that connects the cylindrical division portions 7 to each other. The portion 8 is made of a softer material than the cylindrical divided portion 7. Therefore, when the penetrating main body portion 2 is bent, the soft cylindrical connecting portion 8 is deformed, so that it is difficult to get bent in the bent state.

In addition, the penetrating main body 2 of this embodiment is configured such that the outer diameter of the region where the cylindrical divided portion 7 is arranged and the outer diameter of the region where the cylindrical connecting portion 8 is arranged are equal in the circumferential direction. Formation of a step on the outer peripheral surface of the portion 2 can be suppressed. Therefore, generation of a gap between the penetrating main body portion 2 and the sealing member 3 can be suppressed. Furthermore, since the inner diameter of the area where the cylindrical divided part 7 is arranged and the inner diameter of the area where the cylindrical connecting part 8 is arranged are equal in the circumferential direction, a step is formed on the inner peripheral surface of the penetrating main body part 2. Since this can also be suppressed, the piping can be smoothly inserted into the penetrating body portion 2, and damage to the surface of the piping can be suppressed.

Next, a compartment penetrator 1 according to a second embodiment of the present invention will be described with reference to FIGS. 5 and 6. Components similar to those in the first embodiment are given the same reference numerals and description thereof will be omitted.

The compartment penetrator 1 of this embodiment differs from the first embodiment in the configuration of the penetrating main body 2.

The penetrating body portion 2 of this embodiment includes one inward folding portion 4, a pair of circular arc portions 5 connected to the inward folding portion 4, and a mountain fold hinge portion 24 connecting the pair of circular arc portions 5. . Further, the penetrating main body portion 2 maintains a cylindrical shape in its natural state.

The configuration of the inward folding portion 4 is similar to that of the first embodiment. Specifically, the inward folding portion 4 includes one or more portions that can be valley folded, and is configured to be foldable radially inward. In this embodiment, the inward fold portion 4 is connected to a mountain fold connecting portion 20 provided at one circumferential end of one circular arc portion 5 and a mountain fold connecting portion 20 provided at the other circumferential end of the other circular arc portion 5. , a pair of inward fold division parts 11 and an inward fold connection part 21 arranged between the two mountain fold connection parts 20. Further, in this embodiment, the inwardly folded portion 4 is arranged at one location in the circumferential direction of the penetrating main body portion 2 .

A pair of circular arc portions 5 are provided so as to extend in the circumferential direction from one end portion and the other end portion of the inwardly folded portion 4 in the circumferential direction. Specifically, the pair of circular arc portions 5 include a first circular arc portion 25 extending from one end in the circumferential direction of the inward folding portion 4 to one end in the circumferential direction, and a first circular arc portion 25 extending from the other end in the circumferential direction of the inward folding portion 4 to the other end in the circumferential direction. a second circular arc portion 26 extending to. Further, the first circular arc portion 25 and the second circular arc portion 26 are provided with mountain-fold attachment portions 14 at both ends in the circumferential direction. The configuration of the mountain-fold attachment portion 14 is similar to that of the mountain-fold attachment portion 14 in the first embodiment.

The other circumferential end of the first circular arc portion 25 is connected to the inward folding portion 4 via the cylindrical connecting portion 8 . Specifically, the first circular arc portion 25 connects the mountain-fold attachment portion 14 provided at the other end in the circumferential direction and the mountain-fold attachment portion 14 provided at one end in the circumferential direction of the inward fold portion 4 by the mountain-fold connection portion 20. By doing so, it is connected to the inward folding part 4. Further, the first circular arc portion 25 has one end in the circumferential direction connected to the second circular arc portion 26 via the cylindrical connecting portion 8 .

The second circular arc portion 26 has one end in the circumferential direction connected to the inward folding portion 4 via the cylindrical connecting portion 8 . Specifically, the second circular arc portion 26 connects the mountain-fold attachment portion 14 provided at one end in the circumferential direction and the mountain-fold attachment portion 14 provided at the other end in the circumferential direction of the inward fold portion 4 by the mountain-fold connection portion 20. By doing so, it is connected to the inward folding part 4. Further, the other circumferential end of the first circular arc portion 25 is connected to the second circular arc portion 26 via the cylindrical connecting portion 8 . Specifically, the mountain-fold attachment portion 14 provided at the other circumferential end of the first circular arc portion 25 and the mountain-fold attachment portion 14 provided at one circumferential end of the second circular arc portion 26 are connected by the mountain-fold connecting portion 20. By doing so, the first circular arc portion 25 and the second circular arc portion 26 are connected.

The mountain-fold hinge portion 24 is a portion that connects the first circular arc portion 25 and the second circular arc portion 26. Moreover, the mountain fold hinge part 24 connects the first circular arc part 25 and the second circular arc part 26 so that the folds are located radially outward (mountain foldable). That is, the mountain-fold hinge portion 24 connects the first circular arc portion 25 and the second circular arc portion 26 in a bendable manner so that the inner peripheral surfaces of the first circular arc portion 25 and the second circular arc portion 26 approach each other. The mountain-fold hinge portion 24 of this embodiment extends over the mountain-fold attachment portion 14 provided on the first circular arc portion 25, the mountain-fold attachment portion 14 provided on the second circular arc portion 26, and the double mountain-fold attachment portion 14. A mountain-fold connecting part 20 provided in the.

In the penetrating body portion 2 of this embodiment, mountain fold portions 22 are provided at three locations spaced apart in the circumferential direction, and a valley fold portion 23 is provided at one location in the circumferential direction. Specifically, the mountain fold portions 22 are provided at two locations: one where the arc portions 5 are connected to each other, and the other where the arc portions 5 and the inner fold portion 4 are connected. The valley fold portion 23 is provided at a connection location between the inward fold connection portions 21.

As shown in FIG. 6, the compartment penetrator 1 configured as described above deforms so that the overall outer diameter becomes smaller when it is inserted into the through hole 30a.

As shown in FIG. 6, the compartment penetrating tool 1 receives an external force that bends the inwardly folded part 4 radially inward, and the inwardly folded part 4 bends radially inwardly.

When the inwardly folded portion 4 is bent radially inward and a force is applied radially inward (a force in the direction of the arrow shown in FIG. 6) so that the pair of circular arc portions 5 approach each other, the pair of circular arc portions 5 moves closer together, and the diameter of the entire penetrating body portion 2 is reduced. Specifically, by bending the inward folding portion 4, the tension on the penetrating main body portion 2 by the cylindrical division portion 7 is released. By pushing the pair of circular arc parts 5 radially inward in a state where the tension is released, the circular arc parts 5 move radially inward so that the inner peripheral surfaces of the circular arc parts 5 approach each other. In this way, the inner folding portion 4 is bent radially inward and the arcuate portions 5 are moved closer to each other, thereby reducing the outer diameter of the entire penetrating main body portion 2. Further, the sealing member 3 also deforms following the deformation of the penetrating main body portion 2, and its outer diameter becomes smaller. Therefore, the outer diameter of the partition penetrating tool 1 as a whole becomes smaller.

The compartment penetrating tool 1 is inserted into the through hole 30a in a state where the outer diameter is smaller than the inner diameter of the through hole 30a, and after the insertion is completed, it is restored to the cylindrical state before deformation by the restoring force of the cylindrical connecting part 8. be done. Specifically, after the cylindrical connecting portion 8 is inserted into the through hole 30a due to its elasticity, it is no longer subjected to force from the outside of the diameter, and as a result, each cylindrical divided portion 7 attempts to restore its unbending state as a whole. Force it into a cylindrical arrangement. That is, the cylindrical connecting portion 8 elastically urges the cylindrical division portion 7 so that the outer diameter of the penetrating main body portion 2 changes from the reduced state to the original state (the state where the outer diameter is large). Following the restoration of the shape of the penetrating body portion 2, it is restored to its original state (state with a large outer diameter).

Since the outer diameter of the compartment penetrating tool 1 in its natural state is larger than the inner diameter of the through hole 30a, the sealing member 3 of the compartment penetrating tool 1 that is inserted into the through hole 30a and attempting to restore its shape before deformation will be damaged during the restoration process. At this stage, it comes into contact with the inner wall of the through hole 30a. Even after the sealing member 3 abuts against the inner wall of the through hole 30a, the compartment penetrator 1 (the penetrating main body 2) tries to restore to the state before deformation. , is compressed by being sandwiched between the radially inward penetrating body portion 2 and the inner wall of the radially outward through hole 30a. In particular, among the inner walls of the through hole 30a, the sealing member 3 that is in contact with the inner wall portion 31, the outer wall portion 32, and the structural plywood portion 35, which are rigid plate materials, is compressed by being sandwiched between the through body portion 2 and the plate material. be done. Therefore, the sealing member 3 can seal between the outer circumferential surface of the penetrating body portion 2 and the inner wall of the through hole 30a.

After the partition penetrating tool 1 is inserted into the through hole 30a and restored to its pre-deformed shape, the entire penetrating main body 2 is stretched into a cylindrical shape. Specifically, the inwardly folded portion 4 expands outward, and the arcuate portions 5 move away from each other, thereby restoring the penetrating body portion 2 to its cylindrical shape, and transferring the force from the radially outer side to the radially inward portion of the penetrating body portion. It becomes possible to transmit the force as a force along the circumferential direction of 2. Therefore, each cylindrical division part 7 in the penetrating main body part 2 becomes in a state of tension, and the shape of the partition penetrating tool 1 becomes difficult to collapse. Furthermore, in this embodiment, the cylindrical connecting part 8 biases the cylindrical division part 7 to be arranged in a cylindrical shape, so even if it receives some external force, the shape of the partition penetrating tool 1 is maintained by the bias. Therefore, the tension and bias combine to prevent the shape of the partition penetrating tool 1 from collapsing.

According to the compartment penetrating tool 1 configured as described above, when inserting the compartment penetrating tool 1 into the through hole 30a, by bending the inwardly folded part 4 radially inward, the arcuate parts 5 approach each other and the penetrating body Since the outer diameter of the entire portion 2 can be made small, it can be easily inserted into the through hole 30a, and after being inserted into the through hole 30a, the inwardly folded portion 4 is expanded outward to form the through body portion 2 into a substantially cylindrical shape. When restored to its shape, the entire penetrating main body portion 2 becomes stretched into a substantially cylindrical shape, making it difficult for the shape to collapse.

Although the embodiments of the present invention have been described above with reference to one example, the present invention is not limited to the embodiments described above, and various changes can be made without departing from the gist of the present invention.

For example, in the first embodiment, a case has been described in which a pair of inward folding parts 4 are provided, but it is also possible to configure so that three or more inward folding parts 4 are provided.

Further, in the first embodiment, a case has been described in which a pair of inwardly folded portions 4 are provided approximately 180 degrees apart in the circumferential direction of the penetrating body portion 2, but this is not limited to such a case. Various arrangements can be adopted so that the maximum diameter of 2 can be reduced. For example, as shown in FIG. 7, the internally folded portions 4 can be provided at three locations spaced apart in the circumferential direction, or as shown in FIG. 8, two pairs of the internally folded portions 4 can be provided.

Furthermore, although the case is illustrated in which both circumferential ends of the cylindrical connection part 8 extend along the radial direction of the penetrating main body part 2, the cylindrical connection part 8 is not limited to such a case, as shown in FIGS. At least a portion of the portion 8 can also be formed into a tapered shape that becomes narrower on the radially inner side or the radially outer side. In this case, by forming the mountain-fold attachment portion 14 and the inward-fold attachment portion 17 in a shape that follows the circumferential end of the cylindrical connection portion 8, both ends of the cylindrical connection portion 8 in the circumferential direction Since the contact area between the cylindrical connection part 8 and the mountain-fold attachment part 14 and the inward-fold attachment part 17 is increased compared to the case where Also, the strength of the connection with the inward fold attachment portion 17 can be increased.

Further, in the first embodiment and the second embodiment, the case where the inner fold part 4 is provided with only one valley fold part 23 has been described, but the invention is not limited to such a case. It is also possible to configure the valley fold portions 23 to be provided adjacent to each other. For example, a pair of valley fold parts 23 are arranged in the inner fold part 4, and the pair of valley fold parts 23 are connected by a mountain fold part 22, so that when folded inward, it becomes W-shaped when viewed from the front. It can also be configured as

Furthermore, although a case has been described in which the sealing member 3 is provided from one end in the axial direction to the other end of the outer peripheral surface of the penetrating main body 2, the sealing member 3 is provided only in a part of the penetrating main body 2 in the axial direction. Alternatively, the seal member 3 may not be provided. Further, instead of the sealing member 3, for example, a thermally expandable material that expands upon receiving heat from a fire or the like may be provided.

Moreover, although the case has been described in which the sealing member 3 is provided on the outer circumferential surface of the penetrating body portion 2 by adhesion, the present invention is not limited to such a case. For example, the penetrating body portion 2 and the sealing member 3 may be integrally molded by extrusion molding. Alternatively, the sealing member 3 may be formed into a cylindrical shape in advance, the penetrating body portion 2 may be inserted into the inside of the cylindrical sealing member 3, and the penetrating body portion 2 and the sealing member 3 may be integrated by heat welding or the like. You can also.

Furthermore, although the case where the sealing member 3 is made of foam rubber has been described, the present invention is not limited to such a case, and various sealable structures can be adopted.

Moreover, although the case has been described in which the penetrating main body part 2 is configured to be bendable by the plurality of cylindrical division parts 7 and the soft cylindrical connection part 8 that connects the cylindrical division parts 7, the structure is not limited to such a configuration. By reducing the thickness of a portion of the cylindrical member in the circumferential direction, it is also possible to bend the cylindrical member at the thinner portion.

Furthermore, although the penetration main body portion 2 has been described as being made of resin, it is not limited to resin and may be made of other materials such as metal.

DESCRIPTION OF SYMBOLS 1... Compartment penetrating tool, 2... Penetrating body part, 3... Seal member, 4... Inward folding part, 5... Circular arc part, 7... Cylindrical division part, 8... Cylindrical connection part, 11... Inward folding division part, 12... Circular arc Divided part, 13... Arc main body part, 14... Mountain fold attachment part, 16... Inward fold main body part, 17... Inward fold attachment part, 20... Mountain fold connection part, 21... Inward fold connection part, 22... Mountain fold part, 23... Valley fold part, 24... Mountain fold hinge part, 25... First circular arc part, 26... Second circular arc part, 30... Partition body, 30a... Through hole, 31... Inner wall part, 32... Outer wall part, 33... Heat insulation material, 34...waterproof sheet, 35...structural plywood section

Claims (2)

A partition penetrating tool installed in a through hole formed in a partition body that partitions the inside or outside of a building,
The penetrating main body has a substantially cylindrical shape and is inserted into the through hole,
The penetrating main body portion is configured to be bendable radially inward, and includes a plurality of inner fold portions arranged at intervals in the circumferential direction, and a plurality of inner fold portions extending in the circumferential direction between the plurality of inner fold portions. comprising a circular arc portion ;
Each of the plurality of inward folding parts is a part that bends radially inward at a certain position in the circumferential direction when the plurality of inward folding parts and the plurality of circular arc parts are pressed radially inward. Compartment penetrator. A sealing member is provided on at least a portion of the outer circumferential surface of the through-hole body in the axial direction, the sealing member extending in the circumferential direction and sealing between the outer circumferential surface of the through-hole body and the inner circumferential surface of the through hole. 1. The compartment penetrator according to 1 .