JP6823574B2 - Penetration sleeve - Google Patents

Description

The present invention relates to a through sleeve installed in a through hole in a wall in a building.

Through holes in walls in buildings come in a variety of sizes. The conventional through sleeve has a continuous tubular shape. There were variations according to the size of the through holes, but the diameter of each through sleeve was fixed. For this reason, the size (diameter dimension) of the through sleeve does not always match the through hole exactly, and a fireproof putty is filled in the gap between the through hole and the through sleeve at the construction site.

On the other hand, the through sleeve described in Patent Document 1 includes a pair of sleeve pieces divided into two in the radial direction and a pair of plate pieces for blindfolding the periphery of the through hole. Then, Patent Document 1 describes that the pair of sleeve pieces can be fitted into through holes having various diameters by adjusting the degree of polymerization and inserting them into the through holes. However, since the sleeve piece and the plate piece are separate bodies and need to be attached separately to the through hole, the through sleeve described in Patent Document 1 has room for improvement in on-site workability. ..

Japanese Patent No. 4196383 (FIG. 1, claim 1)

Therefore, an object of the present invention is to provide a penetrating sleeve having good workability.

The present invention is a through sleeve installed in a through hole penetrating from the front side to the back side of a wall in a building, the main body portion inserted into the through hole from the front side, and the main body portion in the main body portion. It is provided with a cover portion integrally provided at the front end portion and installed along the front wall surface of the wall, and the main body portion has a tubular shape in which a plate-like body is rolled. The diameter dimension of the main body portion is variable according to the distance between the peripheral ends in the rolled state, and the cover portion is connected to the main body portion at at least one place, and is connected. It is a penetrating sleeve that can follow a change in the distance between the peripheral ends of the main body, except for the above-mentioned parts.

According to this configuration, since the main body and the cover are integrated, if the main body is inserted into the through hole, the main body can be made to follow the diameter of the through hole, and the cover is installed on the wall surface. Can be in a state. Further, since the cover portion can follow the change in the distance between the peripheral end portions of the main body portion, the labor of on-site construction is not required.

Further, a fixing portion for fixing at least a part of the diameter dimension in the axial direction of the main body portion is further provided, and the fixing portion is provided at a position different between the locking portion and the locking portion in the circumferential direction. It has a locked portion that locks the locked portion, and by operating the front end portion of the main body portion, the locked portion and the locked portion are locked. It may be configured so that can be released.

According to this configuration, the fixing portion allows the main body portion to be inserted into the through hole in a state where the diameter dimension of the main body portion is smaller than the diameter dimension of the through hole. Therefore, the insertion work can be performed without getting caught. In particular, when the wall is a hollow wall, there is an advantage that it is difficult to get caught in the end of the through hole on the back side. Moreover, after the insertion work is completed, the engaged state can be easily released and the main body portion can be aligned with the through hole.

Further, the fixing portion can be provided at the end portion on the back side of the main body portion.

According to this configuration, by locking the locking portion and the locked portion in the fixed portion, the main body portion can be easily formed into a constricted shape. Then, as compared with the case where the entire main body portion is narrowed, it is not necessary to narrow the front end portion of the main body portion so much. Further, if the cover portion is to be narrowed to the same diameter as the tip diameter in the tip narrowing shape by narrowing the entire main body portion, an unreasonable force is applied to the cover portion and the peripheral surface side of the main body portion is applied. It is easy to fall and deform, but this can be avoided. Then, in order to prevent the tilting deformation from occurring, it is necessary to deal with the narrowing of the main body portion by, for example, dividing the cover portion into a large number, but such measures are not necessary.

Further, the fixing portion can be provided as a part of the main body portion.

According to this configuration, the configuration of the penetrating sleeve can be simplified as compared with the configuration in which the fixed portion is formed separately from the main body portion.

Further, the cover portion is composed of a plurality of cover pieces connected in the circumferential direction, and the cover pieces adjacent to each other in the circumferential direction are excluded from the end portions corresponding to the circumferential end portions in the main body portion. It can be rotatably connected.

According to this configuration, the cover portion composed of a plurality of cover pieces can be easily made to follow the change in the distance between the peripheral end portions in the main body portion by rotating the adjacent cover pieces.

Further, the cover portion is composed of a plurality of cover pieces connected in the circumferential direction, and the adjacent cover pieces are slidably connected to each other in a part of the plurality of cover pieces. it can.

According to this configuration, for some of the plurality of cover pieces, adjacent cover pieces are slidably connected to each other in the circumferential direction, so that the distance between the peripheral ends of the main body can be easily changed. Be made to follow.

According to the present invention, if the main body is inserted into the through hole, the main body can be made to follow the diameter of the through hole, and the cover can be installed on the wall surface. Further, since the cover portion can follow the change in the distance between the peripheral end portions of the main body portion, the labor of on-site construction is not required. Therefore, it is possible to provide a through sleeve having good workability.

It is a perspective view which shows the penetration sleeve which concerns on one Embodiment of this invention, and showed the front side upward. It is a perspective view which shows the state before assembling the main body part and the cover part of the through sleeve. It is a top view which shows the cover part of the through sleeve by itself. The through sleeve having a fixed portion is shown, (a) is a schematic perspective view of the whole, (b) is an enlarged display of the locking portion, and (c) is the locked portion. It is an enlarged display. The through sleeve is provided with a fixing portion, and shows a state in which the engaging portion and the engaged portion are engaged, (a) is a schematic perspective view of the whole, and (b) is fixed. This is an enlarged display of the part. It is a side view which shows the state of inserting the through-sleeve into a hollow wall (cross-sectional view), (a) shows the state in the middle of insertion, and (b) shows the state after insertion. Both (a) and (b) are enlarged perspective views of a main part showing an example of another form of the engaging part. It is a schematic perspective view which shows the penetration sleeve which concerns on other embodiment of this invention, (a) shows the state which the cover piece slid in the away direction, (b) is the state which the cover piece slid in the approach direction. Indicates the state.

Next, the present invention will be described by taking up embodiments. The terms "front side" and "back side" in the following description indicate directions when viewed from a worker standing near the wall surface Ws of the building.

The through sleeve 1 of the present embodiment is suitable for installation on a hollow wall (see FIGS. 6A and 6B) composed of plate-like bodies facing each other at intervals. Of course, it is also possible to install the through sleeve 1 of the present embodiment on a solid wall.

The through sleeve 1 of the present embodiment has the shape shown in FIG. 1, and as shown in FIG. 6B, the wall W in the building, specifically, the hollow wall W from the front side to the back side. It is installed in the through hole H through which it penetrates. For convenience of explanation, it is assumed that the wall W extends in the vertical direction and the through hole H is provided so as to extend in the horizontal direction in the wall W. However, the wall W to which the present invention is applied is not limited to this aspect. The penetrating sleeve 1 is made of a flat steel plate and includes a main body portion 2 and a cover portion 3.

The main body 2 is a portion inserted into the through hole H from the front side. The main body 2 is a tubular portion in which a flat steel plate is rolled. Since the steel plate is one of the materials having high versatility and easy processing, the manufacturing cost of the through sleeve 1 can be reduced by using the steel plate. Then, by using one of the materials having high rigidity such as a steel plate, the rigidity can be secured even in the tubular main body 2, so that the wall W has a space inside and the main body 2 is viewed from the outside. As shown in FIG. 6A, the main body 2 can be reliably inserted into the through hole H while maintaining the shape even if the hollow wall cannot be supported. As described above, the through sleeve 1 of the present embodiment has the rigidity in the form (see FIG. 6A) when it is inserted into the through hole H, and is inserted from the plate portion on the front side of the hollow wall and passed through the space portion. It is said to be rigid enough to reach the plate on the back side. Here, the tubular shape is a substantially cylindrical shape having a cross section orthogonal to the axial direction (the direction connecting the front side and the back side) at the time of installation, and is a substantially cylindrical shape in the circumferential direction. It has a shape with a "cut" in one place. This "cut" exists from the front end to the back end. Due to this shape, the peripheral ends 21 and 21 of the main body 2 are not in a fixed relationship with each other in the rolled state, and the ends are separated from each other in the circumferential direction or brought closer to each other in the circumferential direction. Can be overlapped in the radial direction. Therefore, the diameter of the main body 2 is variable according to the distance between the circumferential ends 21 and 21 in the rolled state.

As described above, the main body 2 of the present embodiment is configured to have a variable diameter. Therefore, by separating the peripheral ends 21 and 21 in the circumferential direction, a space 2s communicating with the inside and outside in the radial direction is secured in the main body 2, and it is easy to insert piping or electrical wiring in this space 2s. Can be done. Then, by superimposing the end portions in the radial direction, the diameter dimension of the main body portion 2 can be reduced. Then, as will be described later, the work of inserting the main body portion 2 into the through hole H can be easily performed.

As shown in FIG. 2, a plurality of cover portion locking pieces 22 ... 22 project from the front edge of the main body portion 2. In the present embodiment, the main body portion of the main body portion 2 and the plurality of cover portion locking pieces 22 ... 22 are integrally formed. As shown in FIG. 1, each cover portion locking piece 22 is used to integrally provide the cover portion 3 at the front end portion of the main body portion 2.

Further, as shown in FIG. 4A, the main body portion 2 includes a fixing portion 23. The fixing portion 23 is a portion capable of uniformly determining at least a part of the diameter dimension of the main body portion 2 in the axial direction, and has a locking portion 231 and a locked portion 232. As shown in FIG. 4B, the locking portion 231 of the present embodiment is provided at the inner end portion of the circumferential end portion 21 on one side of the main body portion 2. The term "end" in the description of the present embodiment is a concept indicating an edge and a region near the edge (a region inside the edge). In the locking portion 231, a portion near the peripheral edge of the plate-shaped body constituting the main body portion 2 is cut out and bent inward in diameter to form a hook-shaped fixing portion locking piece 2311. ing. The fixing portion locking piece 2311 has a shape that is open to the front side and the outside of the edge of the peripheral end portion 21.

On the other hand, the locked portion 232 is provided at a position different from that of the locking portion 231 in the circumferential direction, and is a portion capable of locking the locking portion 231. As shown in FIG. 4C, the locked portion 232 of the present embodiment is provided at the inner end portion of the main body portion 2. The locked portion 232 is a portion in which a portion near the inner edge of the plate-like body constituting the main body portion 2 is cut out.

As shown in FIG. 5A, the operator can deform the inner end of the main body 2 into a narrowed tip shape. At this time, the fixing portion locking piece 2311 in the locking portion 231 is inserted into the notched portion in the locked portion 232 in the inward direction and then moved to the front side. By doing so, as shown in FIG. 5B, the locking portion 231 can be hooked on the locked portion 232 to put both in the locked state. By locking the fixing portion 23 in this way, the main body portion 2 retains the narrowed tip shape shown in FIG. 5A.

The fixing portion 23 is configured so that the locked state of the locked portion 231 and the locked portion 232 can be released by operating the front end portion of the main body portion 2. In the present embodiment, the worker pushes the side of the main body 2 where the locking portion 231 is provided to the back side (direction D shown in FIG. 5B) to lock the locked portion 232. The hook of the portion 231 is released, and the locked state can be released.

As described above, since the through sleeve 1 of the present embodiment is provided with the fixing portion 23, the main body 2 is inserted into the through hole H in a state where the diameter of the main body 2 is smaller than the diameter of the through hole H. Yes (see FIG. 6 (a)). Therefore, the insertion work can be performed without getting caught. In particular, when the wall W is a hollow wall, there is an advantage that it is difficult to get caught in the end of the through hole on the back side (shown on the right side of FIG. 6A). Therefore, it is possible to prevent the plate-like body on the back side constituting the hollow wall from being damaged by being caught on the end of the through hole on the back side. Moreover, after the insertion work is completed, the engaged state can be easily released so that the main body 2 can be aligned with the through hole H. Therefore, the through sleeve 1 of the present embodiment is suitable for construction on a hollow wall.

Further, the fixing portion 23 of the present embodiment is provided at the end portion on the back side of the main body portion 2. Therefore, by locking the locking portion 231 and the locked portion 232, the main body portion 2 can be easily formed into a constricted shape. Then, as compared with the case where the entire main body portion 2 is narrowed, it is not necessary to narrow the end portion on the front side of the main body portion 2 so much. Further, if the cover portion 3 is to be narrowed to the same diameter as the tip diameter in the tip narrowing shape by narrowing the entire main body portion 2, an unreasonable force is applied to the cover portion 3 and the main body portion 2 is used. It is easy to fall and deform to the peripheral surface side, but this can be avoided. Then, in order to prevent the collapse deformation, it is necessary to deal with the narrowing of the main body portion 2 by, for example, dividing the cover portion 3 into a larger number than the four divisions of the present embodiment. There is no need to take such measures.

Further, the fixing portion 23 of the present embodiment is provided as a part of the main body portion 2. Therefore, there is an advantage that the configuration of the penetrating sleeve 1 can be simplified as compared with the configuration in which the fixing portion 23 is formed separately from the main body portion 2.

Next, the cover portion 3 is a portion installed along the wall surface Ws on the front side of the wall surface W in the building. By locating the cover portion 3 so as to cover the peripheral edge of the through hole H, the peripheral edge of the through hole H (which may not have a beautiful shape) is not exposed, so that the aesthetic appearance can be maintained. The cover portion 3 is connected to the main body portion 2 at at least one place, and is capable of following a change in the distance between the circumferential end portions 21 and 21 in the main body portion 2 except for the connected portion. .. In the present embodiment, the cover portion 3 is connected to the main body portion 2 at the lower end portion on FIG. 3 via a connector 4 such as a rivet or an eyelet.

The cover portion 3 is composed of a plurality of cover pieces 31 ... 31 connected in the circumferential direction. Each cover piece 31 is formed of a flat steel plate like the main body 2. In the present embodiment, each cover piece 31 is a quaternary ring body having a shape in which the entire circumference is divided into four. The curvature of the inner diameter of the cover piece 31 is substantially the same as the curvature of the main body 2. Connection holes 311, 311 for connecting the cover pieces 31, 31 adjacent to each other in the circumferential direction are provided at both ends of each cover piece 31 in the circumferential direction. The connection hole 311 of the present embodiment is a circular hole. Then, a connection piece 312 for connecting the main body 2 is projected in the in-diameter direction. An elongated hole 313 along the circumferential direction is formed in each connection piece 312, and the cover portion locking piece 22 of the main body portion 2 is passed through the elongated hole 313. As shown in FIG. 1, the cover portion 3 can be integrally provided with the main body portion 2 by bending each cover portion locking piece 22 outward in diameter and bending the connecting piece 312 of the cover portion 3 to the back side. The circumferential dimension of each elongated hole 313 is formed to be larger than the circumferential dimension of each cover portion locking piece 22. Therefore, the cover portion 3 is connected to the front end portion of the main body portion 2 so as to allow a deviation in the circumferential direction. Therefore, the cover portion 3 can be easily made to follow the change in the distance between the circumferential end portions 21 and 21 in the main body portion 2.

As shown in FIG. 3, four cover pieces 31 ... 31 are overlapped and connected to the peripheral end portion 21 of the cover portion 3 of the present embodiment. The cover pieces 31 and 31 are fixed to each other by passing the connecting tool 4 such as a rivet or eyelet through the connecting hole 311 in the portion indicated as "fixed" in FIG. .. The cover pieces 31 and 31 are fixed so as to be rotatable around the connector 4. Regarding the connection hole 311 at the lower part of the drawing, the connector 4 also fixes the main body portion 2. Therefore, as shown in FIG. 2, the main body portion 2 is provided with a cover portion connection piece 24 having a connection hole 241 protruding from the front end edge of the main body portion 2 and being bent outward in diameter.

Here, the connector 4 is not attached to the connection hole 311 in the upper portion shown in FIG. 3, and the cover piece 31 located on the left side of the connection hole 311 and the cover piece 31 located on the right side are not connected. ing. Since the cover pieces 31 and 31 are not connected in this way, the two cover pieces 31 and 31 that are not connected are in the rolled state of the main body 2 as shown by the arrow in FIG. 3 as "movable". The ends 21 and 21 in the circumferential direction move in the circumferential direction according to the state change of moving away from or closer to each other in the circumferential direction. Further, in the portion shown as “fixed” in FIG. 3, two cover pieces 31 and 31 that are adjacent to each other can be rotated via the connector 4. That is, the cover pieces 31, 31 adjacent to each other in the circumferential direction are rotatably connected to each other except for the corresponding end portion between the peripheral end portions 21 and 21 in the main body portion 2. Due to the relationship between the cover portion 3 and the main body portion 2 configured in this way, the cover portion 3 can be easily made to follow the change in the distance between the circumferential end portions 21 and 21 in the main body portion 2. Therefore, since the cover portion 3 is connected to the main body portion 2, the workability of the through sleeve 1 is not deteriorated.

Next, an example of the construction procedure of the through sleeve 1 of the present embodiment will be briefly described. When there is no pipe or the like in the through hole H of the wall W (hollow wall in this example) in the building, the main body 2 has a tapered shape as shown in FIG. 5 (a). When a pipe or the like has already penetrated through the through hole H, first, as shown in FIG. 4A, the circumferential ends 21 and 21 of the main body 2 are separated in the circumferential direction, and the space 2s is created. The pipes and the like are positioned in the space 2s within the diameter in the state of communicating inside and outside. After that, the main body 2 is formed into a constricted shape. When the tip is constricted, as shown in FIG. 5B, the locking portion 231 is hooked on the locked portion 232 at the fixing portion 23 to lock both of them.

The through sleeve 1 in the state shown in FIG. 5A is inserted into the through hole H from the front side in the direction of the arrow shown in FIG. 6A. Since the main body 2 has rigidity, the main body 2 can be reliably inserted into the through hole H even if the wall W is a hollow wall. When the main body 2 reaches the back side of the through hole H and the cover 3 is in contact with the wall surface Ws on the front side, the operator operates the main body 2 from the front side to lock the fixing portion 23. To cancel. Then, the main body portion 2 does not have a narrowed tip shape, and as shown in FIG. 6B, is in a state of being in contact with the inner surface of the through hole H. Since the main body 2 can be fitted exactly to the through hole H in this way, it is not necessary to fill the gap with a fireproof putty at the construction site as in the conventional case, and the construction can be completed. If necessary, a separate cover portion can be attached to the wall surface on the back side.

In this way, by carrying out the construction using the through sleeve 1 of the present embodiment, the main body portion 2 and the cover portion 3 are integrated. Therefore, if the main body portion 2 is inserted into the through hole H, the diameter of the through hole is formed. The main body portion 2 can be made to follow the dimensions, and the cover portion 3 can be installed on the wall surface Ws. Therefore, the step of filling the gap is unnecessary, and the step of separately attaching the cover portion 3 to the wall surface Ws after inserting the main body portion 2 is also unnecessary. Further, since the cover portion 3 can follow the change in the distance between the circumferential end portions 21 and 21 in the main body portion 2, the step of attaching the penetrating sleeve 1 to the wall W can be completed simply by inserting the main body portion 2. Therefore, there is an advantage that the labor of construction on site is not required.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

For example, in the above-described embodiment, the insertion direction of the through sleeve 1 at the time of construction is set from the front side to the back side, but conversely, it can be inserted from the back side to the front side.

Further, although the main body portion 2 and the cover portion 3 are made of steel plate in the above embodiment, they can be made of various materials. Any material that can be elastically deformed and elastically restored, such as that made of synthetic resin, can be used. However, when the main body 2 and the cover 3 are made of a non-combustible material such as a steel plate as in the above embodiment, the fire protection function is impaired by burning the main body 2 and the cover 3 itself. There is no such thing. Therefore, it is possible to prevent the arrangement in the penetrating portion of the fire protection section from being hindered.

Further, the shape of the fixing portion 23 is not limited to the above embodiment and can be changed in various ways. For example, as shown in FIG. 7A, the fixing portion locking piece 2311 can be formed by bending a part of the main body portion 2 along the circumferential end portion 21. Further, as shown in FIG. 7 (b), the fixed portion locking piece 2311 having a simplified (one-fold bend) configuration as compared with the one shown in FIG. 7 (a) (two-fold bend) can also be used.

Further, in the above-described embodiment, the operator moves the main body portion 2 (specifically, the peripheral end portion 21) in the axial direction to lock the main body portion 232 (the locking portion 231 is hooked on the locked portion 232). The fixing portion 23 was configured so as to perform the locking (the state in which the locking portion 231 was removed from the locked portion 232) and the locking (the state in which the locking portion 231 was removed from the locked portion 232). However, the fixed portion 23 is not limited to this configuration. For example, the locking portion and the locked portion may be a combination of a hole and a protrusion, and the locking and unlocking may be performed by moving in the radial direction.

Further, the fixing portion 23 of the above-described embodiment is provided at the rear end portion of the main body portion 2. However, the position where the fixing portion 23 is provided is not limited to this, and may be various positions.

Further, with respect to the cover portion 3, the adjacent cover pieces 31, 31 can be slidably connected to each other in the circumferential direction for a part of the plurality of cover pieces 31 ... 31. For example, as shown in FIGS. 8A and 8B, a part of the plurality of cover pieces 31 ... 31 may be slidable in the circumferential direction. FIG. 8A shows a state in which the two movable cover pieces 31 and 31 slide in a direction away from between the circumferential ends 21 and 21 of the main body portion 2, and FIG. 8B shows a state in which the two movable cover pieces 31 and 31 slide away from each other. A state is shown in which the two movable cover pieces 31 and 31 are slid in the direction of the arrow shown in the figure so as to approach the peripheral ends 21 and 21 of the main body 2. In addition to the configurations shown in FIGS. 8A and 8B, the slidable connection has, for example, an elongated hole extending in the circumferential direction in one of adjacent cover pieces 31 and 31, and the elongated hole in the other. It may be realized in a slidable configuration by forming a protrusion or the like that penetrates.

Further, although the fixed portion 23 is provided as a part of the main body portion 2 in the above embodiment, it can be separated from the main body portion 2. For example, it can be a ring-shaped body or a string-shaped body that can be wound around the outer diameter position of the main body portion 2. The shape of the separate body is not limited to this, and various shapes can be used.

Further, the concept of "wall" to which the through sleeve 1 of the above embodiment is installed includes a floor and a ceiling. Therefore, the penetration sleeve 1 of the embodiment can be installed in various modes.

1 Penetration sleeve 2 Main body 21 Circumferential end 23 Fixing part 231 Locking part 232 Locked part 3 Cover part 31 Cover piece W wall Ws Wall surface H through hole

Claims (6)

A through sleeve installed in a through hole that penetrates from the front side to the back side of a wall in a building.
A main body that is inserted into the through hole from the front side,
It is provided with a cover portion that is integrally provided by being connected to the front end portion of the main body portion and is installed along the front wall surface of the wall portion.
The main body has a tubular shape in which one plate-like body is rolled, and the diameter of the main body is variable according to the distance between the peripheral ends in the rolled state.
The cover portion is composed of a plurality of cover pieces connected in the circumferential direction.
The cover pieces adjacent to each other in the circumferential direction are movably connected to each other except for the corresponding end portion between the peripheral end portions in the main body portion, and the main body portion is connected at least at one of the connected portions. is connected to, except the connected portion to the body portion, said being capable follow the change in the distance between the circumferential end portion of the main body, through the sleeve. Further provided with a fixing portion for fixing at least a part of the diameter dimension in the axial direction of the main body portion.
The fixing portion has a locking portion and a locked portion that is provided at a position different from the locking portion in the circumferential direction and locks the locking portion, and is in front of the main body portion. The through sleeve according to claim 1, wherein the locked state of the locked portion and the locked portion can be released by operating the end portion on the side. The penetrating sleeve according to claim 2, wherein the fixing portion is provided at the inner end portion of the main body portion. The penetrating sleeve according to claim 2 or 3, wherein the fixing portion is provided as a part of the main body portion. The cover piece are adjacent to each other in the circumferential direction, the is pivotally connected with the exception of the end portion corresponding to between the circumferential end portion of the main body, through according to any one of claims 1 to 4 sleeve. Before Symbol per some of the plurality of cover pieces are connected slidably to the cover piece adjacent to each other circumferentially, through sleeve according to claim 1.

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