JP6823574B2 - Penetration sleeve - Google Patents

Penetration sleeve Download PDF

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JP6823574B2
JP6823574B2 JP2017193449A JP2017193449A JP6823574B2 JP 6823574 B2 JP6823574 B2 JP 6823574B2 JP 2017193449 A JP2017193449 A JP 2017193449A JP 2017193449 A JP2017193449 A JP 2017193449A JP 6823574 B2 JP6823574 B2 JP 6823574B2
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main body
cover
sleeve
body portion
hole
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JP2019065991A (en
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毅 岩松
毅 岩松
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Inaba Denki Sangyo Co Ltd
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Description

本発明は、建築物における壁の貫通穴に設置される貫通スリーブに関するものである。 The present invention relates to a through sleeve installed in a through hole in a wall in a building.

建築物における壁の貫通穴には種々のサイズがある。従来の貫通スリーブは切れ目のない筒状であった。貫通穴のサイズに合わせてバリエーションはあったが、個々の貫通スリーブの径寸法は固定されていた。このため、貫通穴に対して必ずしも貫通スリーブのサイズ(径寸法)がぴったり合うわけではなく、施工現場で貫通穴と貫通スリーブとの隙間に防火パテを詰める等して対応していた。 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.

一方、特許文献1に記載の貫通スリーブは、径方向に2分割された一対のスリーブ片と、貫通穴の周囲を目隠しするための一対のプレート片を備えている。そして特許文献1には、前記一対のスリーブ片を、それぞれ重合度合いを調整して貫通穴に挿入することにより、種々の径寸法の貫通穴に合わせられると記載されている。しかし、スリーブ片とプレート片とは別体であって、貫通穴に対して別個に取り付ける必要があったため、特許文献1に記載の貫通スリーブでは、現場での施工性に改良の余地があった。 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. ..

特許第4196383号公報(図1、請求項1)Japanese Patent No. 4196383 (FIG. 1, claim 1)

そこで本発明は、施工性の良い貫通スリーブを提供することを課題とする。 Therefore, an object of the present invention is to provide a penetrating sleeve having good workability.

本発明は、建築物における壁の、手前側から奥側まで貫通する貫通穴に設置される貫通スリーブであって、前記貫通穴に前記手前側から挿入される本体部と、前記本体部における前記手前側の端部に一体に設けられ、前記壁における前記手前側の壁面に沿うように設置されるカバー部と、を備え、前記本体部は、板状体が丸められた筒状であり、その丸められた状態における周方向端部間の距離に応じて当該本体部の径寸法が可変とされており、前記カバー部は、少なくとも一箇所で前記本体部に接続されており、前記接続された箇所を除き、前記本体部における前記周方向端部間の距離の変化に追従可能とされている、貫通スリーブである。 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.

この構成によれば、本体部とカバー部とが一体であるので、貫通穴に本体部を挿入すれば貫通穴の径寸法に本体部を追従させられ、かつ、壁面にカバー部が設置された状態とできる。更に、カバー部が本体部における周方向端部間の距離の変化に追従可能なので、現場での施工の手間がかからない。 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.

また、前記本体部の軸方向における少なくとも一部の径寸法を一定に定める固定部を更に備え、前記固定部は、係止部と、当該係止部とは周方向で異なる位置に設けられ、前記係止部を係止する被係止部とを有しており、前記本体部における前記手前側の端部を操作することにより、前記係止部と前記被係止部との係止状態を解除できるよう構成されていてもよい。 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.

この構成によれば、固定部により、本体部の径寸法を貫通穴の径寸法よりも小さくした状態で本体部を貫通穴に挿入できる。このため、引っ掛かりなく挿入作業できる。特に壁が中空壁の場合、奥側の貫通穴端部に引っ掛りにくいという利点がある。しかも、挿入作業終了後は容易に係合状態を解除して、貫通穴に対して本体部を沿わせることができる。 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.

また、前記固定部は、前記本体部における前記奥側の端部に備えられることができる。 Further, the fixing portion can be provided at the end portion on the back side of the main body portion.

この構成によれば、固定部における係止部と被係止部とを係止することで、本体部を容易に先窄まり形状とできる。そして、本体部の全体を窄める場合に比べて、本体部の手前側の端部をあまり窄めなくてよい。また、本体部の全体を窄めることでカバー部を前記先窄まり形状における先端の径と同径まで窄めようとすると、カバー部に無理な力がかかって、本体部の周面側に倒れ変形してしまいやすいが、これを避けることができる。そして、前記倒れ変形が起こらないようにするには、例えばカバー部を多数に分割するなどして、本体部の窄まりに対応させる必要があるが、このような対処の必要がない。 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.

また、前記固定部は、前記本体部の一部として備えられることができる。 Further, the fixing portion can be provided as a part of the main body portion.

この構成によれば、固定部を本体部と別体に形成した構成に比べ、貫通スリーブの構成を単純化できる。 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.

また、前記カバー部は、周方向に連結された複数のカバー片から構成され、周方向に隣り合う前記カバー片同士は、前記本体部における前記周方向端部間に対応する端部を除いて回動可能に接続されていることができる。 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.

この構成によれば、複数のカバー片から構成されたカバー部を、隣り合うカバー片同士が回動することにより、本体部における周方向端部間の距離の変化に容易に追従させられる。 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.

また、前記カバー部は、周方向に連結された複数のカバー片から構成され、前記複数のカバー片のうち一部につき、隣り合うカバー片同士が周方向にスライド可能に接続されていることができる。 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.

この構成によれば、複数のカバー片のうち一部につき、隣り合うカバー片同士が周方向にスライド可能に接続されていることにより、本体部における周方向端部間の距離の変化に容易に追従させられる。 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.

本発明は、貫通穴に本体部を挿入すれば貫通穴の径寸法に本体部を追従させられ、かつ、壁面にカバー部が設置された状態とできる。更に、カバー部が本体部における周方向端部間の距離の変化に追従可能なので、現場での施工の手間がかからない。このため、施工性の良い貫通スリーブを提供することができる。 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.

本発明の一実施形態に係る貫通スリーブを示し、手前側を上方に示した斜視図である。It is a perspective view which shows the penetration sleeve which concerns on one Embodiment of this invention, and showed the front side upward. 前記貫通スリーブの、本体部とカバー部との組み立て前の状態を示す斜視図である。It is a perspective view which shows the state before assembling the main body part and the cover part of the through sleeve. 前記貫通スリーブのカバー部を単体で示す平面図である。It is a top view which shows the cover part of the through sleeve by itself. 前記貫通スリーブで固定部を備えたものを示し、(a)は全体の概略的な斜視図であり、(b)は係止部を拡大表示したもので、(c)は被係止部を拡大表示したものである。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. 前記貫通スリーブで固定部を備えたものであって、係合部と被係合部とが係合した状態を示し、(a)は全体の概略的な斜視図であり、(b)は固定部を拡大表示したものである。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. 前記貫通スリーブを中空壁(断面表示)に挿入する様子を示す側面図であり、(a)は挿入途中の状態を示し、(b)は挿入後の状態を示す。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. (a)(b)とも、前記係合部の他の形態の一例を示す要部拡大斜視図である。Both (a) and (b) are enlarged perspective views of a main part showing an example of another form of the engaging part. 本発明の他の実施形態に係る貫通スリーブを示す概略的な斜視図であって、(a)はカバー片が離れ方向にスライドした状態を示し、(b)はカバー片が接近方向にスライドした状態を示す。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.

次に、本発明につき、実施形態を取り上げて説明を行う。なお、以下の説明における「手前側」及び「奥側」との表現は、建築物の壁面Wsのそばに立った作業者から見た場合の方向を示す表現である。 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.

本実施形態の貫通スリーブ1は、間隔をおいて対向する板状体から構成された中空壁(図6(a)(b)参照)への施工に好適なものである。なお、本実施形態の貫通スリーブ1を中実壁に対して施工することももちろん可能である。 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.

本実施形態の貫通スリーブ1は、図1に示す形状であって、図6(b)に示すように、建築物における壁W、具体的には、中空壁Wの、手前側から奥側まで貫通する貫通穴Hに設置される。説明の都合上、壁Wは垂直方向に延びており、貫通穴Hは前記壁Wにおいて水平方向に延びるように設けられていることを前提とする。ただし、本発明の適用対象の壁Wはこの態様に限定されるものではない。この貫通スリーブ1は、平坦な鋼板からなり、本体部2とカバー部3とを備えている。 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.

本体部2は、前記貫通穴Hに手前側から挿入される部分である。この本体部2は、平坦な鋼板が丸められた筒状の部分である。鋼板は汎用性が高くて加工が容易な材料のひとつであるから、鋼板を用いることにより貫通スリーブ1の製造コストを低減可能である。そして、鋼板のような剛性の大きい材料のひとつを用いることで、筒状とされた本体部2でも剛性を確保できるので、壁Wが、内部に空間が存在しており本体部2を外側から支持できない中空壁であっても、図6(a)に示すように、形状を保ちつつ本体部2を確実に貫通穴Hに挿入していくことができる。このように本実施形態の貫通スリーブ1は、貫通穴Hに挿入する際の形態(図6(a)参照)における剛性が、中空壁における手前側の板部から挿入して空間部を通って奥側の板部まで至らせることのできる剛性とされている。ここで、前記筒状とは、具体的には設置時における、軸方向(手前側と奥側とを結ぶ方向)に直交する断面で「C形」である略円筒状であって、周方向に一箇所「切れ目」のある形状である。この「切れ目」は、手前側の端部から奥側の端部に亘って存在する。このような形状であることに伴い、本体部2は丸められた状態における周方向端部21,21同士は固定的な関係になく、前記端部同士を周方向に離したり、周方向に近づけて径方向に重ね合ったりさせることができる。このため本体部2は、丸められた状態における周方向端部21,21間の距離に応じて径寸法が可変となる。 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.

このように、本実施形態の本体部2は径寸法可変に構成される。このため、周方向端部21,21同士を周方向に離すことで、本体部2に径方向の内外に連通した空間2sを確保して、この空間2sに配管または電気配線を入れる作業を容易にできる。そして、前記端部同士を径方向に重ね合わせることで、本体部2の径寸法を縮小させられる。そうすると、後述のように、貫通穴Hに本体部2を挿入する作業を容易にできる。 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.

図2に示すように、本体部2における手前側の端縁からは、複数のカバー部係止片22…22が突出している。本実施形態では、本体部2における本体部分と複数のカバー部係止片22…22とは一体に形成されている。各カバー部係止片22は、図1に示すように、カバー部3を、本体部2における手前側の端部に一体に設けるために用いられる。 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.

また、図4(a)に示すように、本体部2は固定部23を備えている。固定部23は本体部2の軸方向における少なくとも一部の径寸法を一定に定めることのできる部分であって、係止部231と被係止部232とを有する。本実施形態の係止部231は、図4(b)に示すように、本体部2における一方側の周方向端部21のうちで奥側の端部に備えられる。なお、本実施形態の説明における「端部」とは、端縁及び端縁近傍の領域(端縁の内側の領域)を示す概念である。この係止部231では、本体部2を構成する板状体の、周方向端縁の近傍部分が切り欠かれ、径内側に折り曲げられることで、フック状の固定部係止片2311が形成されている。固定部係止片2311は、手前側及び周方向端部21における端縁の外側に対して開いた形状とされている。 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.

一方、被係止部232は、前記係止部231とは周方向で異なる位置に設けられ、前記係止部231を係止することのできる部分である。本実施形態の被係止部232は、図4(c)に示すように、本体部2における奥側の端部に備えられる。この被係止部232は、本体部2を構成する板状体の奥側端縁の近傍部分が切り欠かれた部分である。 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.

図5(a)に示すように、作業者は本体部2における奥側の端部を絞った先窄まり形状に変形させることができる。この際、被係止部232における切り欠かれた部分に、係止部231における固定部係止片2311を、径内方向に差し込んだ上で手前側に移動させる。こうすることで、図5(b)に示すように、被係止部232に対して係止部231を引っ掛けて、両者を係止状態とすることができる。このように固定部23を係止状態とすることで、本体部2は、図5(a)に示す先窄まり形状が保持される。 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.

そして固定部23は、本体部2における手前側の端部を操作することにより、係止部231と被係止部232との係止状態を解除できるよう構成されている。本実施形態では、本体部2のうち係止部231が設けられた側を、作業者が奥側(図5(b)に示す方向D)に押すことにより、被係止部232に対する係止部231の引っ掛かりが外れて、係止状態を解除できる。 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.

このように、本実施形態の貫通スリーブ1は固定部23を備えたことにより、本体部2の径寸法を貫通穴Hの径寸法よりも小さくした状態で、本体部2を貫通穴Hに挿入できる(図6(a)参照)。このため、引っ掛かりなく挿入作業できる。特に壁Wが中空壁の場合、奥側の貫通穴端部(図6(a)の右方に示す)に引っ掛りにくいという利点がある。このため、奥側の貫通穴端部に引っ掛ることにより、中空壁を構成する奥側の板状体を破損してしまうことを防止できる。しかも、挿入作業終了後は容易に係合状態を解除して、貫通穴Hに対して本体部2を沿わせることができる。このため、本実施形態の貫通スリーブ1は、中空壁への施工に好適である。 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.

また、本実施形態の固定部23は、本体部2における奥側の端部に備えられる。このため、係止部231と被係止部232とを係止することで、本体部2を容易に先窄まり形状とできる。そして、本体部2の全体を窄める場合に比べて、本体部2の手前側の端部をあまり窄めなくてよい。また、本体部2の全体を窄めることでカバー部3を前記先窄まり形状における先端の径と同径まで窄めようとすると、カバー部3に無理な力がかかって、本体部2の周面側に倒れ変形してしまいやすいが、これを避けることができる。そして、前記倒れ変形が起こらないようにするには、例えばカバー部3を本実施形態の4分割よりも多数に分割するなどして、本体部2の窄まりに対応させる必要があるが、このような対処の必要がない。 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.

また、本実施形態の固定部23は、本体部2の一部として備えられている。このため、固定部23を本体部2と別体に形成した構成に比べ、貫通スリーブ1の構成を単純化できる利点がある。 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.

次に、カバー部3は、建築物における壁Wにおける手前側の壁面Wsに沿うように設置される部分である。カバー部3が貫通穴Hの周縁を覆うように位置することで、貫通穴Hの周縁(綺麗な形状でないことがある)が露出しなくなるため、美観を保つことができる。このカバー部3は、少なくとも一箇所で本体部2に接続されており、この接続された箇所を除き、本体部2における周方向端部21,21間の距離の変化に追従可能とされている。本実施形態では、図3上の下端部において、リベット、ハトメ等の接続具4を介して、カバー部3が本体部2に接続されている。 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.

カバー部3は、周方向に連結された複数のカバー片31…31から構成されている。各カバー片31は、本体部2と同じく、平坦な鋼板から形成されている。各カバー片31は、本実施形態では、全周が4分割された形状の4半環状体とされている。カバー片31の内径の曲率は、本体部2の曲率と略一致している。各カバー片31の周方向両端部には、周方向に隣り合うカバー片31,31同士を接続するための接続穴311,311が設けられている。本実施形態の接続穴311は円形の穴である。そして、径内方向には本体部2を接続するための接続片312が突出している。各接続片312には、周方向に沿う長穴313が形成されており、この長穴313に本体部2のカバー部係止片22が通される。図1に示すように各カバー部係止片22を径外側に折り曲げ、カバー部3の接続片312を奥側に折り曲げることで、カバー部3を本体部2に一体に設けることができる。各長穴313の周方向寸法は各カバー部係止片22の周方向寸法よりも大きく形成されている。このため、カバー部3は、本体部2の手前側の端部に対し、周方向のずれを許容するように接続される。従って、カバー部3を本体部2における周方向端部21,21間の距離の変化に容易に追従させられる。 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.

本実施形態のカバー部3は、図3に示すように、4枚のカバー片31…31が周方向端部21に重ねられて接続されている。図3上で「固定」と示した部分(図示左右部分及び下部分)において、リベット、ハトメ等の接続具4が接続穴311に通されることで、カバー片31,31同士が固定される。なお、カバー片31,31同士は、接続具4を中心に回動可能なように固定される。図示下部の接続穴311に関しては、接続具4が本体部2も一緒に固定する。このため、図2に示すように本体部2には、接続穴241を有するカバー部接続片24が本体部2における手前側の端縁から突出して、径外側に曲げられて設けられている。 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.

ここで、図3に示す上部分の接続穴311には接続具4が取り付けられず、当該接続穴311の左側に位置するカバー片31と右側に位置するカバー片31とは接続されない状態とされている。このようにカバー片31,31が接続されないことから、接続されない2枚のカバー片31,31は、図3上で矢印と共に「可動」と示したように、本体部2の丸められた状態における周方向端部21,21同士の、周方向に離れたり近づけたりする状態変化に応じて、周方向に移動する。更に、図3上で「固定」と示した部分も、接続具4を介して、隣り合う関係にある2枚のカバー片31,31が回動可能となっている。つまり、周方向に隣り合うカバー片31,31同士は、本体部2における前記周方向端部21,21間に対応する端部を除いて回動可能に接続される。このように構成されたカバー部3と本体部2との関係により、カバー部3を本体部2における周方向端部21,21間の距離の変化に容易に追従させられる。従って、カバー部3が本体部2に接続されたことにより、貫通スリーブ1の施工性が低下することはない。 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.

次に、本実施形態の貫通スリーブ1の施工手順の一例を簡単に説明する。建築物における壁W(この例では中空壁)の貫通穴Hに配管等が存在していない場合は、本体部2を図5(a)に示すように先窄まり形状とする。また、貫通穴Hに既に配管等が貫通している場合は、まず、図4(a)に示すような、本体部2における周方向端部21,21間が周方向に離れ、空間2sが内外連通した状態で、配管等を径内の空間2sに位置させる。その後、本体部2を先窄まり形状とする。先窄まり形状とする際には、図5(b)に示すように、固定部23において被係止部232に対して係止部231を引っ掛けて、両者を係止状態とする。 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.

図5(a)に示す状態の貫通スリーブ1を、図6(a)に示す矢印方向で、手前側から貫通穴Hに挿入していく。本体部2には剛性が確保されているので、壁Wが中空壁であっても、本体部2を確実に貫通穴Hに挿入していくことができる。本体部2が貫通穴Hの奥側に達し、カバー部3が手前側の壁面Wsに接した状態となったら、作業者は手前側から本体部2を操作して固定部23の係止状態を解除する。すると、本体部2は先窄まり形状ではなくなり、図6(b)に示すように、貫通穴Hの内面に対して当接した状態となる。このように貫通穴Hに対して本体部2をぴったり合わせることができるので、従来のように施工現場で隙間に防火パテを詰める等して対応する必要がなく、施工を完了できる。なお、必要に応じて、奥側の壁面にも別体のカバー部を取り付けることができる。 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.

このように、本実施形態の貫通スリーブ1を用いて施工を実施することにより、本体部2とカバー部3とが一体であるので、貫通穴Hに本体部2を挿入すれば貫通穴の径寸法に本体部2を追従させられ、かつ、壁面Wsにカバー部3が設置された状態とできる。このため、隙間を埋める工程が不要であって、本体部2の挿入後に別にカバー部3を壁面Wsに取り付ける工程も不要となる。更に、カバー部3が本体部2における周方向端部21,21間の距離の変化に追従可能なので、本体部2を挿入するだけで、貫通スリーブ1の壁Wへの取り付け工程を完了できる。よって、現場での施工の手間がかからない利点がある。 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.

以上、本発明の実施形態について説明してきたが、本発明は前記実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲内において種々の変更を加えることができる。 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.

例えば、前記実施形態では、貫通スリーブ1の施工時における挿入方向を手前側から奥側へ向かう方向としたが、逆に、奥側から手前側へ向かい挿入することもできる。 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.

また、本体部2とカバー部3は、前記実施形態では鋼板製であったが、種々の材料からなるものとできる。例えば合成樹脂製など、弾性変形及び弾性復帰可能な材料であれば使用できる。ただし、前記実施形態のように、本体部2とカバー部3が鋼板製のような不燃材料からなるものである場合には、本体部2及びカバー部3自体が燃えることによって防火機能が損なわれることはない。このため、防火区画の貫通部に配置することに支障を生じさせないようにできる。 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.

また、固定部23の形状は、前記実施形態に限定されず種々に変更することができる。例えば、図7(a)に示すように、本体部2の一部を周方向端部21に沿って折り曲げることで固定部係止片2311を形成することができる。また、図7(b)に示すように、図7(a)に示したもの(2回折り曲げ)よりも簡略化した(1回折り曲げ)構成の固定部係止片2311とすることもできる。 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.

また、前記実施形態では、作業者が本体部2(具体的には周方向端部21)を軸方向に移動させることにより、係止(被係止部232に対して係止部231を引っ掛けた状態とする)及び係止解除(被係止部232に対して係止部231を外した状態とする)を行うように、固定部23が構成されていた。しかし、固定部23はこの構成に限定されるものではない。例えば、係止部と被係止部とが穴と突起との組み合わせとされ、径方向への移動により係止及び係止解除がなされるよう構成することもできる。 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.

また、前記実施形態の固定部23は本体部2における奥側の端部に備えられていた。しかし、固定部23の備えられる位置はこれに限定されず、種々の位置とできる。 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.

また、カバー部3に関し、複数のカバー片31…31のうち一部につき、隣り合うカバー片31,31同士が周方向にスライド可能に接続されることもできる。例えば図8(a)(b)に示すように、複数のカバー片31…31の一部を周方向にスライド可能に構成することが挙げられる。図8(a)は、可動とされた2枚のカバー片31,31が本体部2における周方向端部21,21間から離れた方向にスライドした状態を示し、図8(b)は、可動な2枚のカバー片31,31が本体部2における周方向端部21,21間に接近するように図示矢印方向にスライドした状態を示す。このスライド可能な接続は、図8(a)(b)に示す構成の他、例えば、隣り合うカバー片31,31のうち一方には周方向に延びる長穴を、他方には前記長穴を貫通する突起等を形成しておくことにより、スライド可能とした構成で実現してもよい。 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.

また、固定部23につき、前記実施形態では本体部2の一部として備えられていたが、本体部2とは別体とすることもできる。例えば、本体部2の径外位置に巻き付けることのできるリング状体や紐状体とすることができる。別体とする場合の形状はこれに限定されず、種々の形状とすることができる。 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.

また、前記実施形態の貫通スリーブ1の設置対象である「壁」の概念には床や天井も含まれる。このため、前記実施形態の貫通スリーブ1は種々の態様で設置できる。 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 貫通スリーブ
2 本体部
21 周方向端部
23 固定部
231 係止部
232 被係止部
3 カバー部
31 カバー片
W 壁
Ws 壁面
H 貫通穴
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)

建築物における壁の、手前側から奥側まで貫通する貫通穴に設置される貫通スリーブであって、
前記貫通穴に前記手前側から挿入される本体部と、
前記本体部における前記手前側の端部に接続されることによって一体に設けられ、前記壁における前記手前側の壁面に沿うように設置されるカバー部と、を備え、
前記本体部は、一枚の板状体が丸められた筒状であり、その丸められた状態における周方向端部間の距離に応じて当該本体部の径寸法が可変とされており、
前記カバー部は、周方向に連結された複数のカバー片から構成され、
周方向に隣り合う前記カバー片同士は、前記本体部における前記周方向端部間に対応する端部を除いて移動可能に接続され、当該接続された箇所のうち、少なくとも一箇所で前記本体部に接続されており、前記本体部に接続された箇所を除き、前記本体部における前記周方向端部間の距離の変化に追従可能とされている、貫通スリーブ。
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.
前記本体部の軸方向における少なくとも一部の径寸法を一定に定める固定部を更に備え、
前記固定部は、係止部と、当該係止部とは周方向で異なる位置に設けられ、前記係止部を係止する被係止部とを有しており、前記本体部における前記手前側の端部を操作することにより、前記係止部と前記被係止部との係止状態を解除できる、請求項1に記載の貫通スリーブ。
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.
前記固定部は、前記本体部における前記奥側の端部に備えられる、請求項2に記載の貫通スリーブ。 The penetrating sleeve according to claim 2, wherein the fixing portion is provided at the inner end portion of the main body portion. 前記固定部は、前記本体部の一部として備えられる、請求項2または3に記載の貫通スリーブ。 The penetrating sleeve according to claim 2 or 3, wherein the fixing portion is provided as a part of the main body portion. 方向に隣り合う前記カバー片同士は、前記本体部における前記周方向端部間に対応する端部を除いて回動可能に接続されている、請求項1〜4のいずれかに記載の貫通スリーブ。 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. 記複数のカバー片のうち一部につき、隣り合うカバー片同士が周方向にスライド可能に接続されている、請求項1〜4のいずれかに記載の貫通スリーブ。 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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