JP2023026430A - Penetration frame - Google Patents

Penetration frame Download PDF

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JP2023026430A
JP2023026430A JP2022190004A JP2022190004A JP2023026430A JP 2023026430 A JP2023026430 A JP 2023026430A JP 2022190004 A JP2022190004 A JP 2022190004A JP 2022190004 A JP2022190004 A JP 2022190004A JP 2023026430 A JP2023026430 A JP 2023026430A
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steel plate
frame
plate members
plate member
penetration
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JP7304661B2 (en
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啓 岡添
Kei Okazoe
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Okazoe Co Ltd
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Okazoe Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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Abstract

PROBLEM TO BE SOLVED: To provide a penetration frame capable of reducing workload at a construction site and improving a strength relative to a load from a floor part.
SOLUTION: A penetration frame 10 according to the invention is characterized in that a frame body 20 consists in two or more of steel plate member 30, at least one steel plate member 30 comprises a first folding piece part 36 with an end part of a direction intersecting with a height direction H bent, a junction part 52 with a first folding piece part 36 of one part of adjacent two steel plate member 30 and the steel plate member 30 of other part overlapped and joined at least one part of a corner part 22 and the junction part 52 comprises a weld part 54 with one part of a contact surface of two steel plate member 30 melted and joined by a spot weld.
SELECTED DRAWING: Figure 4
COPYRIGHT: (C)2023,JPO&INPIT

Description

本発明は、建造物の床部に貫通口を形成するための貫通枠に関する。 The present invention relates to a through frame for forming a through hole in the floor of a building.

従来、建造物の床部（床スラブ）に、ケーブルなどを取り出す貫通口を形成するための貫通枠が提供されている。貫通枠は、複数のパーツを相互にビス留めして組み立てるなど、多くは施工現場において組み立てられる。しかしながら、貫通枠を設置しようとする床スラブは、デッキプレートを敷設させ、デッキプレートに開口を形成した上でコンクリートを打設するなど、貫通口を形成するにあたり多くの作業が必要となる。貫通枠を施工現場で組み立てる必要がある場合、これらの作業の上に貫通枠の組み立て作業を行う必要があり、作業負担が増えて作業が煩雑になるとの問題があった。 Conventionally, through frames for forming through holes for taking out cables and the like have been provided in floors (floor slabs) of buildings. Penetration frames are mostly assembled at the construction site, such as by assembling a plurality of parts by screwing them together. However, a floor slab on which a penetration frame is to be installed requires a lot of work to form a through hole, such as laying a deck plate, forming an opening in the deck plate, and pouring concrete. When it is necessary to assemble the penetration frame at the construction site, it is necessary to perform the assembly work of the penetration frame on top of these works, and there is a problem that the work burden increases and the work becomes complicated.

また、施工現場での貫通口の形成作業に要する作業負担を軽減するため、下記特許文献１には、予め切欠き開口を形成した基板部を備える貫通枠ユニットが記載されている。特許文献１の貫通枠ユニットは、基板部に切欠き開口を予め形成することで、現場での作業負担を軽減することができるとされている。 Further, in order to reduce the work load required for forming the through-hole at the construction site, Patent Document 1 below describes a through-frame unit that includes a substrate part having a cutout opening formed in advance. The penetrating frame unit of Patent Document 1 is said to be able to reduce the work burden on site by forming a notch opening in advance in the substrate portion.

特開平９－１４４１９３号公報JP-A-9-144193

ここで、施工現場での作業負担をさらに軽減するために、貫通枠を予め組み付けられた状態で提供することが考えられる。例えば、図６に示すとおり、平板状の鋼板材Ｓの縁部同士を突き合わせて溶接して線状の接合部Ｌを形成して接合し、略矩形の断面形状を有するスリーブ部（枠体）を形成することが考えられる。 Here, in order to further reduce the work load at the construction site, it is conceivable to provide the penetration frame in a pre-assembled state. For example, as shown in FIG. 6, the edges of flat steel plate materials S are butted and welded to form a linear joint portion L, which is joined to form a sleeve portion (frame) having a substantially rectangular cross-sectional shape. can be considered to form

本発明の発明者が上述の構成を検討したところ、鋼板材を突き合わせて溶接する場合、鋼板材を突き合わせる角度や強度を均一にして、枠体を製造することは簡単ではないことが判明した。具体的には、図６に示すとおり、鋼板材の縁部同士を突き合わせて溶接により接合する場合、枠体を構成する鋼板材はさほど板厚が大きくものではないため、加工を行う者の熟練度により、接合角度に差が生じたり、溶接漏れやヨレなどが生じたりする場合がある。その結果、加工を行う者の熟練度等の個人差により、完成した製品の精度や強度に差が生じる。そのため、突き合わせ溶接により枠体を製造する場合には、製品の品質を均一に保つことが困難となる。また、鋼板材を突き合わせて溶接する場合には、溶接作業に手間がかかり、製造コストの悪化に繋がる恐れがある。 When the inventors of the present invention examined the above-described configuration, it was found that it is not easy to manufacture a frame body by making the butting angle and strength of the steel plates uniform when the steel plates are butted and welded. . Specifically, as shown in FIG. 6, when the edges of steel plates are butted against each other and joined by welding, the thickness of the steel plate constituting the frame is not so large, so the skill of the person who performs the processing is required. Depending on the degree, there may be a difference in the joint angle, or welding leaks or twists may occur. As a result, the precision and strength of the finished product vary due to individual differences in the skill level of the person who performs the processing. Therefore, when manufacturing a frame by butt welding, it is difficult to maintain uniform product quality. In addition, when the steel plates are butt welded together, the welding operation takes time and effort, which may lead to a deterioration in the manufacturing cost.

また、鋼板材の縁部同士を突き合わせて溶接する場合、溶接領域が枠体の高さ方向全域に亘り線状に形成されることとなる。枠体の高さ方向全域に溶接による接合部が形成されると、溶接による応力が大きくなって鋼板材が撓み、枠体全体の寸法に狂いが生じることが想定される。 Further, when the edges of the steel plates are butted and welded together, the welding area is linearly formed over the entire height direction of the frame. If joints are formed by welding in the entire height direction of the frame, it is assumed that the stress due to welding increases, the steel plate material bends, and the dimensions of the entire frame become distorted.

さらに、貫通枠の枠体は、コンクリートが用いられる床スラブに埋め込まれた状態が想定される。そのため、貫通枠の枠体は、周囲に打設されるコンクリートからの荷重に耐え得る強度が求められる。 Furthermore, it is assumed that the frame body of the penetrating frame is embedded in a floor slab using concrete. Therefore, the frame body of the penetration frame is required to have strength enough to withstand the load from the concrete placed around it.

そこで本発明は、施工現場での作業負担を軽減し、床部からの荷重に対する強度を向上させた貫通枠の提供を目的とした。 SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a penetration frame that reduces the work load at a construction site and improves the strength against the load from the floor.

上述の課題を解決すべく提供される本発明の貫通枠は、高さ方向の両端に開口を備える枠体を有し、前記枠体が、二以上の鋼板部材により構成され、複数の角部及び複数の側面が形成されるものであり、少なくとも一つの前記鋼板部材が、前記高さ方向と交差する方向の端部が屈曲された第一折片部を備えるものであり、複数の前記角部の少なくとも一部において、隣接する二つの前記鋼板部材の一方の前記第一折片部と他方の前記鋼板部材とが重ね合わせられて接合されている接合部が形成されており、前記接合部には、二つの前記鋼板部材の接触面の一部がスポット溶接により融解して接合された溶接部を備えるものであることを特徴とするものである。 A through frame of the present invention provided to solve the above-described problems has a frame body provided with openings at both ends in the height direction, the frame body is composed of two or more steel plate members, and has a plurality of corner portions. And a plurality of side surfaces are formed, and at least one of the steel plate members includes a first folded piece portion in which an end portion in a direction intersecting the height direction is bent, and a plurality of the corners In at least a part of the portion, a joint portion is formed in which the first folded piece portion of one of the two adjacent steel plate members and the steel plate member of the other are overlapped and joined, and the joint portion (2) is characterized in that a portion of the contact surface of the two steel plate members is provided with a welded portion that is melted and joined by spot welding.

本発明によれば、少なくとも一つの角部において、鋼板部材の一部を屈曲させた部分（第一折片部）と隣接する鋼板部材とがスポット溶接により接合される。そのため、平板状の２枚の鋼板部材の縁部を突き合わせて溶接により接合する場合と比較して、鋼板部材同士の位置決めや溶接角度の調整が容易となり、製品の品質の均一化を図ることができる。また、本発明の貫通枠によれば、鋼板部材同士を溶接するための位置決め等の工程数を減らして、安価に、かつ短納期で製造することができる。さらに、本発明によれば、突き合わせ溶接により鋼板部材を接合する場合と比較して、溶接漏れやヨレを抑制して見栄え良く仕上げることができる。 According to the present invention, the portion (first folded piece portion) obtained by bending a part of the steel plate member and the adjacent steel plate member are joined by spot welding at at least one corner. Therefore, compared to the case where the edges of two flat plate-like steel plate members are butted against each other and joined by welding, it becomes easier to position the steel plate members and adjust the welding angle, and uniform product quality can be achieved. can. Moreover, according to the penetration frame of the present invention, the number of processes such as positioning for welding steel plate members can be reduced, and the frame can be manufactured at low cost and in a short delivery time. Furthermore, according to the present invention, it is possible to suppress welding leaks and twists and to finish with a good appearance as compared with the case where steel plate members are joined by butt welding.

また、本発明の貫通枠は、スポット溶接により鋼板部材同士を接合することにより、溶接領域を少なくすることができる。これにより、本発明の貫通枠は、溶接による応力を低減させ、貫通枠全体の撓み等の変形を抑制することができる。その結果、本発明の貫通枠は、製品の精度を向上させることができる。 Moreover, the penetration frame of this invention can reduce a welding area|region by joining steel plate members by spot welding. As a result, the penetration frame of the present invention can reduce stress due to welding and suppress deformation such as bending of the entire penetration frame. As a result, the penetration frame of the present invention can improve the accuracy of products.

さらに、本発明の貫通枠によれば、少なくとも一部の角部において、鋼板部材を屈曲させ、かつ、鋼板部材が重ね合わせられた部分を形成することができる。これにより、本発明の貫通枠は、床部からの耐荷重を向上させることができ、強度を向上させることができる。すなわち、本発明の貫通枠によれば、枠体の外側に流し込まれるコンクリートなどに対する耐荷重を向上させることができる。 Furthermore, according to the penetration frame of the present invention, it is possible to bend the steel plate member and form a portion in which the steel plate members are overlapped at least at some of the corners. As a result, the penetration frame of the present invention can improve the withstand load from the floor and improve the strength. That is, according to the penetration frame of the present invention, it is possible to improve the withstand load against concrete or the like that is poured into the outside of the frame.

さらに、本発明の貫通枠は、予め枠体が組み立てられた状態で施工現場に提供することができる。その結果、本発明の貫通枠は、施工現場での組み立て作業を要さず、施工作業の作業負担を軽減ことができる。 Furthermore, the penetration frame of the present invention can be provided to the construction site in a state in which the frame is assembled in advance. As a result, the penetration frame of the present invention does not require assembly work at the construction site, and can reduce the work load of the construction work.

本発明の貫通枠は、複数の前記角部の少なくとも一部において、隣接して配置される二つの前記鋼板部材の双方が、前記第一折片部を備えるものであり、隣接して配置される二つの前記鋼板部材の前記第一折片部が、相互に他方の前記鋼板部材と重ね合わせられているものであることが望ましい。 In the through frame of the present invention, both of the two steel plate members arranged adjacent to each other at least in part of the plurality of corner portions are provided with the first folded piece portion, and are arranged adjacent to each other. It is desirable that the first folded piece portions of the two steel plate members are overlapped with the other steel plate member.

上述の構成によれば、鋼板部材が重ね合わせられた部分が、枠体の柱のような補強部分としての機能を持たせることができる。その結果、本発明の貫通枠は、より強度を向上させることができる。 According to the above configuration, the portion where the steel plate members are superimposed can have a function as a reinforcing portion like the column of the frame. As a result, the penetration frame of the present invention can further improve the strength.

本発明の貫通枠は、少なくとも一つの前記接合部において、二以上の前記溶接部が、前記高さ方向に沿って形成されているものであることが望ましい。 Preferably, in the through frame of the present invention, two or more of the welded portions are formed along the height direction in at least one of the joints.

上述の構成によれば、確実に二つの鋼板部材を接合しつつ溶接による応力を最小限に抑え、鋼板部材の撓み等の変形を抑制することができる。 According to the above-described configuration, it is possible to reliably join the two steel plate members while minimizing the stress due to welding, thereby suppressing deformation such as bending of the steel plate members.

本発明の貫通枠は、前記枠体が、前記開口の縁部から前記開口の外側に向けて形成されるフランジ部を備え、前記鋼板部材が、前記高さ方向の端部が屈曲された第二折片部を備えるものであり、前記鋼板部材を構成して前記枠体が形成された状態において、前記第二折片部が前記フランジ部を構成するものであってもよい。 In the through frame of the present invention, the frame body includes a flange portion formed from the edge portion of the opening toward the outside of the opening, and the steel plate member has a second end portion bent at the height direction end portion. The second folded piece portion may be provided, and the second folded piece portion may constitute the flange portion in a state in which the steel plate member is configured and the frame body is formed.

上述の構成によれば、高さ方向に延びる第一屈曲部と、幅方向又は奥行き方向に延びる第二屈曲部とを枠体に形成して、枠体の強度をより向上させることができる。また、枠体にフランジ部を形成して、フランジ部を枠体に蓋体を取り付ける場合の蓋体取付部として機能させることができる。 According to the above configuration, the frame body is formed with the first curved portion extending in the height direction and the second curved portion extending in the width direction or the depth direction, thereby further improving the strength of the frame body. In addition, the flange portion can be formed on the frame so that the flange portion can function as a lid attachment portion when the lid is attached to the frame.

本発明によれば、施工現場での作業負担を軽減し、床部からの荷重に対する強度を向上させた貫通枠を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the penetration frame which reduced the work burden in a construction site and improved the intensity|strength with respect to the load from a floor can be provided.

本発明の貫通枠を示す斜視図である。It is a perspective view which shows the penetration frame of this invention. 図１の貫通枠の枠体の断面図を示している。（ａ）は正面視における断面図、（ｂ）は図２（ａ）のＡ－Ａ’線断面図である。2 shows a cross-sectional view of the frame body of the through frame of FIG. 1 ; FIG. (a) is a cross-sectional view in a front view, and (b) is a cross-sectional view taken along the line A-A' of FIG. 2(a). 図１の貫通枠が床スラブに埋め込まれた状態を示す模式図である。FIG. 2 is a schematic diagram showing a state in which the penetration frame of FIG. 1 is embedded in a floor slab; 図１の貫通枠の枠体を示す分解斜視図である。FIG. 2 is an exploded perspective view showing a frame body of the penetration frame in FIG. 1; 図１の貫通枠の角部を示す図である。（ａ）は正面図、（ｂ）は図５（ａ）のＢ－Ｂ’線断面図である。It is a figure which shows the corner|angular part of the penetration frame of FIG. (a) is a front view, and (b) is a cross-sectional view taken along the line B-B' of FIG. 5(a). 鋼板材の縁部同士を突き合わせて溶接を行った場合を示す参考図である。It is a reference drawing which shows the case where edge parts of a steel plate material are butt|matched and welding is performed.

以下、本発明の貫通枠１０について図面を参照しつつ説明する。図１に示すとおり、貫通枠１０は、枠体２０及び蓋プレート６０を有している。 Hereinafter, the penetration frame 10 of the present invention will be described with reference to the drawings. As shown in FIG. 1 , the through frame 10 has a frame body 20 and a lid plate 60 .

図１に示すとおり、枠体２０は、略矩形の断面形状を有する箱状の外観を有している。枠体２０は、高さ方向Ｈの両端に開口が形成されている。より具体的には、図２（ａ）に示すとおり、枠体２０には、高さ方向Ｈのうち、蓋プレート６０が取り付けられる上方側の上方開口２６ａ（開口）と、下方側の下方開口２６ｂ（開口）とが形成されている。 As shown in FIG. 1, the frame 20 has a box-like appearance with a substantially rectangular cross-sectional shape. Openings are formed at both ends of the frame 20 in the height direction H. As shown in FIG. More specifically, as shown in FIG. 2A, the frame 20 has an upper opening 26a (opening) on the upper side to which the lid plate 60 is attached and a lower opening 26a (opening) on the lower side in the height direction H. 26b (opening) are formed.

なお、以下の説明において、貫通枠１０の高さ方向Ｈと交差する方向のうち、枠体２０の長側面が延びる方向を単に「幅方向Ｗ」と、短側面が延びる方向を単に「奥行き方向Ｄ」と記載して説明する場合がある。 In the following description, among the directions intersecting the height direction H of the penetration frame 10, the direction in which the long side surfaces of the frame 20 extend is simply referred to as the "width direction W," and the direction in which the short side surfaces extend is simply referred to as the "depth direction." D" in some cases.

枠体２０は、幅方向Ｗの長さが７００ミリ程度、奥行き方向Ｄの長さが２００ミリ程度、高さ方向Ｈの長さが２００ミリ程度の大きさとされている。また、蓋プレート６０は、平面視において幅方向Ｗの長さが約７４０ミリ、奥行き方向Ｄの長さが約２４０ミリの大きさとされている。なお、本発明の貫通枠の大きさは、本実施形態の貫通枠１０の大きさに限定されない。本発明の貫通枠の大きさは、種々選択可能である。 The frame body 20 has a length of about 700 mm in the width direction W, a length of about 200 mm in the depth direction D, and a length of about 200 mm in the height direction H. The lid plate 60 has a length of about 740 mm in the width direction W and a length of about 240 mm in the depth direction D in plan view. The size of the penetration frame of the present invention is not limited to the size of the penetration frame 10 of the present embodiment. Various sizes of the penetration frame of the present invention can be selected.

図３に示すとおり、貫通枠１０は、建造物の床スラブ１に、ケーブル等を取り出すための貫通口４を形成するために用いられる。本実施形態で一例として図示する床スラブ１は、デッキプレート２が敷設された上でコンクリート３が打設されて形成されている。 As shown in FIG. 3, the penetration frame 10 is used to form a penetration hole 4 for taking out cables and the like in the floor slab 1 of a building. A floor slab 1 illustrated as an example in this embodiment is formed by laying a deck plate 2 and placing concrete 3 thereon.

図３に示すとおり、貫通口４を床スラブ１に形成させた状態では、貫通枠１０の枠体２０は、上方開口２６ａ側の一部の領域が外部に取り出され、その他の領域が床スラブ１に埋め込まれた状態となる。すなわち、枠体２０は、床スラブ１に配置された状態において、高さ方向Ｈのうち半分以上の領域がコンクリート３に取り囲まれた状態となる。また、枠体２０は、上方開口２６ａが床スラブ１から外部に露出するように配置され、上方開口２６ａは蓋プレート６０により覆われる。 As shown in FIG. 3, when the through hole 4 is formed in the floor slab 1, the frame body 20 of the through frame 10 has a part of the area on the side of the upper opening 26a taken out to the outside, and the other area of the frame body 20 on the side of the upper opening 26a. It is embedded in 1. That is, when the frame body 20 is placed on the floor slab 1 , more than half of the area in the height direction H is surrounded by the concrete 3 . Further, the frame 20 is arranged so that the upper opening 26a is exposed from the floor slab 1 to the outside, and the upper opening 26a is covered with the lid plate 60. As shown in FIG.

図１に示すとおり、蓋プレート６０は、平面視において略矩形のプレート部材である。蓋プレート６０は、上方開口２６ａを覆うに足りる大きさとされている。蓋プレート６０には複数のねじ孔６２が設けられている。蓋プレート６０は、ねじ孔６２にねじ等を挿通させて枠体２０に取り付けられ、上方開口２６ａを閉塞する。図１に示すとおり、蓋プレート６０には、例えば「開口部注意」等の注意喚起の文字を付すことができる。 As shown in FIG. 1, the lid plate 60 is a substantially rectangular plate member in plan view. The lid plate 60 is sized to cover the upper opening 26a. A plurality of screw holes 62 are provided in the lid plate 60 . The lid plate 60 is attached to the frame 20 by inserting screws or the like into the screw holes 62 to close the upper opening 26a. As shown in FIG. 1, the lid plate 60 may be provided with a warning letter such as "Beware of the opening".

図１及び図２（ｂ）に示すとおり、枠体２０には、角部２２、側面２４、フランジ部２８ａ，２８ｂが形成されている。 As shown in FIGS. 1 and 2B, the frame 20 is formed with corners 22, side surfaces 24, and flanges 28a and 28b.

図２（ｂ）に示すとおり、枠体２０は、２つの長側面を構成する側面２４ａ，２４ｂ、及び２つの短側面を構成する側面２４ｃ，２４ｄを含む４つの側面２４を有している。 As shown in FIG. 2(b), the frame 20 has four side surfaces 24 including two long side surfaces 24a and 24b and two short side surfaces 24c and 24d.

図２（ｂ）に示すとおり、枠体２０には、角部２２ａ，２２ｂ，２２ｃ，２２ｄを含む４つの角部２２を有している。角部２２ａは、側面２４ａと側面２４ｃとが隣接する位置に形成されている。角部２２ｂは、側面２４ｃと側面２４ｂとが隣接する位置に形成されている。角部２２ｃは、側面２４ｂと側面２４ｄとが隣接する位置に形成されている。角部２２ｄは、側面２４ｄと側面２４ａとが隣接する位置に形成されている。 As shown in FIG. 2B, the frame 20 has four corners 22 including corners 22a, 22b, 22c and 22d. Corner portion 22a is formed at a position where side surface 24a and side surface 24c are adjacent to each other. Corner portion 22b is formed at a position where side surface 24c and side surface 24b are adjacent to each other. Corner portion 22c is formed at a position where side surface 24b and side surface 24d are adjacent to each other. The corner 22d is formed at a position where the side 24d and the side 24a are adjacent to each other.

図１及び図２（ａ）に示すとおり、フランジ部２８ａは、上方開口２６ａの縁部から枠体２０の外側に向けて形成されている。フランジ部２８ｂは、下方開口２６ｂの縁部から枠体２０の外側に向けて形成されている。 As shown in FIGS. 1 and 2(a), the flange portion 28a is formed toward the outside of the frame 20 from the edge of the upper opening 26a. The flange portion 28b is formed toward the outside of the frame 20 from the edge of the lower opening 26b.

図４に示すとおり、枠体２０は、鋼板材を所定の形状に屈曲させた複数の鋼板部材３０により構成されている。本実施形態の枠体２０は、４つの鋼板部材３０により構成されている。より具体的には、枠体２０は、枠体２０の長側面を構成する二つの鋼板部材３０ａ，３０ｂ、及び枠体２０の短側面を構成する２つの鋼板部材３０ｃ，３０ｄにより構成されている。 As shown in FIG. 4, the frame 20 is made up of a plurality of steel plate members 30 each made by bending a steel plate into a predetermined shape. The frame 20 of the present embodiment is composed of four steel plate members 30 . More specifically, the frame 20 is composed of two steel plate members 30a and 30b forming long sides of the frame 20 and two steel plates 30c and 30d forming short sides of the frame 20. .

図４に示すとおり、鋼板部材３０ａ，３０ｂは、高さ方向Ｈと交差する幅方向Ｗの両側に、高さ方向Ｈに沿って直線的に形成された折目部として、第一屈曲部３４，３４を有している。また、鋼板部材３０ａ，３０ｂは、第一屈曲部３４，３４を境界として、鋼板部材３０ａ，３０ｂの幅方向Ｗの端部を屈曲された第一折片部３６，３６を備えている。 As shown in FIG. 4 , the steel plate members 30a and 30b have first bent portions 34 as fold portions linearly formed along the height direction H on both sides of the width direction W intersecting the height direction H. , 34. Further, the steel plate members 30a and 30b are provided with first folded pieces 36 and 36 formed by bending ends in the width direction W of the steel plate members 30a and 30b with the first bent portions 34 and 34 as boundaries.

また、図４に示すとおり、鋼板部材３０ａ，３０ｂは、高さ方向Ｈの両側に、幅方向Ｗに沿って直線的に形成された折目部として、第二屈曲部３８，３８を有している。また、鋼板部材３０ａ，３０ｂは、第二屈曲部３８，３８を境界として、鋼板部材３０ａ，３０ｂの高さ方向Ｈの端部が屈曲された第二折片部４０，４０を備えている。 Further, as shown in FIG. 4, the steel plate members 30a and 30b have second bent portions 38 and 38 as fold portions linearly formed along the width direction W on both sides in the height direction H. ing. Further, the steel plate members 30a and 30b have second folded pieces 40 and 40 formed by bending the ends of the steel plate members 30a and 30b in the height direction H with the second bent portions 38 and 38 as boundaries.

図４に示すとおり、鋼板部材３０ａには、第一屈曲部３４，３４、及び第二屈曲部３８，３８により取り囲まれた部分に、枠体２０の側面２４ａを構成する側面部３２が形成されている。また、鋼板部材３０ｂには、第一屈曲部３４，３４、及び第二屈曲部３８，３８により取り囲まれた部分に、枠体２０の側面２４ｂを構成する側面部３２が形成されている。言い方を換えれば、鋼板部材３０ａ，３０ｂにおいて、枠体２０の側面２４を構成する部分である側面部３２は、第一屈曲部３４，３４及び第二屈曲部３８，３８に取り囲まれている。これにより、貫通枠１０は、枠体２０の側面２４の強度を向上させている。 As shown in FIG. 4, the steel plate member 30a has a side portion 32 that constitutes the side surface 24a of the frame 20 in a portion surrounded by the first bent portions 34, 34 and the second bent portions 38, 38. ing. Further, the steel plate member 30b has a side portion 32 that constitutes the side surface 24b of the frame 20 in a portion surrounded by the first bent portions 34, 34 and the second bent portions 38, 38. As shown in FIG. In other words, in the steel plate members 30a, 30b, the side surface portion 32, which constitutes the side surface 24 of the frame 20, is surrounded by the first bent portions 34,34 and the second bent portions 38,38. Thereby, the penetration frame 10 improves the strength of the side surface 24 of the frame 20 .

図４に示すとおり、鋼板部材３０ｃ，３０ｄは、高さ方向Ｈと交差する奥行き方向Ｄの両側に、高さ方向Ｈに沿って直線的に形成された折目部として、第一屈曲部３４，３４を有している。また、鋼板部材３０ｃ，３０ｄは、第一屈曲部３４，３４を境界として、鋼板部材３０ｃ，３０ｄの幅方向Ｗの端部を屈曲された第一折片部３６，３６を備えている。 As shown in FIG. 4, the steel plate members 30c and 30d are formed on both sides of the depth direction D intersecting the height direction H as folds linearly formed along the height direction H, and the first bent portions 34 , 34. Further, the steel plate members 30c and 30d are provided with first folded pieces 36 and 36 formed by bending ends in the width direction W of the steel plate members 30c and 30d with the first bent portions 34 and 34 as boundaries.

また、図４に示すとおり、鋼板部材３０ｃ，３０ｄは、高さ方向Ｈの両側に、奥行き方向Ｄに沿って直線的に形成された折目部として、第二屈曲部３８，３８を有している。また、鋼板部材３０ｃ，３０ｄは、第二屈曲部３８，３８を境界として、鋼板部材３０ｃ，３０ｄの高さ方向Ｈの端部が屈曲された第二折片部４０，４０を備えている。 Further, as shown in FIG. 4, the steel plate members 30c and 30d have second bent portions 38 and 38 as fold portions linearly formed along the depth direction D on both sides in the height direction H. ing. Further, the steel plate members 30c and 30d are provided with second folded pieces 40 and 40 formed by bending the ends of the steel plate members 30c and 30d in the height direction H with the second bent portions 38 and 38 as boundaries.

図４に示すとおり、鋼板部材３０ｃには、第一屈曲部３４，３４、及び第二屈曲部３８，３８により取り囲まれた部分に、枠体２０の側面２４ｃを構成する側面部３２が形成されている。また、鋼板部材３０ｄには、第一屈曲部３４，３４、及び第二屈曲部３８，３８により取り囲まれた部分に、枠体２０の側面２４ｄを構成する側面部３２が形成されている。言い方を換えれば、鋼板部材３０ｃ，３０ｄにおいて、枠体２０の側面２４を構成する部分である側面部３２は、第一屈曲部３４，３４及び第二屈曲部３８，３８に取り囲まれている。これにより、貫通枠１０は、枠体２０の側面２４の強度を向上させている。 As shown in FIG. 4, the steel plate member 30c is formed with a side portion 32 that constitutes the side surface 24c of the frame 20 in a portion surrounded by the first bent portions 34, 34 and the second bent portions 38, 38. ing. Further, the steel plate member 30d has a side portion 32 that constitutes the side surface 24d of the frame 20 in a portion surrounded by the first bent portions 34, 34 and the second bent portions 38, 38. As shown in FIG. In other words, in the steel plate members 30c, 30d, the side surface portion 32, which constitutes the side surface 24 of the frame 20, is surrounded by the first bent portions 34,34 and the second bent portions 38,38. Thereby, the penetration frame 10 improves the strength of the side surface 24 of the frame 20 .

図２（ｂ）に示すとおり、枠体２０の角部２２には、隣接する二つの鋼板部材３０の一方の第一折片部３６と、他方の鋼板部材３０とが重ね合わせられて接合されている接合部５２が形成されている。また、枠体２０は、４つの角部２２のそれぞれにおいて隣接する二つの鋼板部材３０をスポット溶接により接合させて４つの鋼板部材３０を連結させ、略矩形の筒状体を形成している。 As shown in FIG. 2B, at the corner 22 of the frame 20, the first folded piece 36 of one of the two adjacent steel plate members 30 and the other steel plate member 30 are superimposed and joined. A joint portion 52 is formed. In addition, the frame 20 joins two adjacent steel plate members 30 at each of the four corners 22 by spot welding to connect the four steel plate members 30 to form a substantially rectangular cylindrical body.

例えば、図２（ｂ）に示すとおり、枠体２０には、角部２２ａにおいて隣接する鋼板部材３０ａ及び鋼板部材３０ｃのうち、鋼板部材３０ａの第一折片部３６と鋼板部材３０ｃの側面部３２とが重ね合わせられて接合された接合部５２が形成されている。 For example, as shown in FIG. 2B, the frame 20 includes the first folded piece portion 36 of the steel plate member 30a and the side surface portion of the steel plate member 30c among the steel plate member 30a and the steel plate member 30c that are adjacent to each other at the corner portion 22a. 32 are overlapped and joined to form a joint portion 52 .

また、図２（ｂ）に示すとおり、角部２２ｂでは、鋼板部材３０ｂの第一折片部３６と鋼板部材３０ｃの側面部３２とが重ね合わせられて接合された接合部５２が形成されている。角部２２ｃでは、鋼板部材３０ｂの第一折片部３６と鋼板部材３０ｄの側面部３２とが重ね合わせられて接合された接合部５２が形成されている。角部２２ｄでは、鋼板部材３０ａの第一折片部３６と鋼板部材３０ｄの側面部３２とが重ね合わせられて接合された接合部５２が形成されている。 Further, as shown in FIG. 2B, at the corner portion 22b, a joint portion 52 is formed in which the first folded piece portion 36 of the steel plate member 30b and the side surface portion 32 of the steel plate member 30c are overlapped and joined. there is At the corner portion 22c, a joint portion 52 is formed by overlapping and joining the first folded piece portion 36 of the steel plate member 30b and the side surface portion 32 of the steel plate member 30d. At the corner portion 22d, a joint portion 52 is formed by overlapping and joining the first folded piece portion 36 of the steel plate member 30a and the side surface portion 32 of the steel plate member 30d.

図１及び図５（ａ）に示すとおり、接合部５２には、二つの鋼板部材３０の接触面がスポット溶接により融解して接合された複数の溶接部５４が形成されている。より具体的には、接合部５２には、３つの溶接部５４が、高さ方向Ｈに沿って形成されている。さらに具体的には、枠体２０は、一つの接合部５２において、高さ方向Ｈの両端近傍と、高さ方向Ｈの中間近傍との、計３箇所において溶接部５４が形成されている。言い換えれば、枠体２０は、一つの接合部５２において二つの鋼板部材３０が、３箇所のスポット溶接により接合されている。 As shown in FIGS. 1 and 5A, the joint 52 is formed with a plurality of welds 54 in which the contact surfaces of the two steel plate members 30 are melted and joined by spot welding. More specifically, three welded portions 54 are formed along the height direction H in the joint portion 52 . More specifically, the frame body 20 has welded portions 54 formed at a total of three locations near both ends in the height direction H and near the middle in the height direction H at one joint portion 52 . In other words, the frame 20 is formed by joining two steel plate members 30 at one joining portion 52 by spot welding at three locations.

貫通枠１０は、隣接して配置される二つの鋼板部材３０をスポット溶接により接合することにより、例えば二つの鋼板部材３０の縁部を突き合わせて線状に溶接して接合する場合と比較して、溶接領域を極力抑え、鋼板部材３０の変形を抑制することができる。 The through frame 10 is formed by joining two adjacent steel plate members 30 by spot welding. , deformation of the steel plate member 30 can be suppressed by suppressing the welding area as much as possible.

また、図５（ｂ）に示すとおり、枠体２０の各角部２２には、隣接して配置される二つの鋼板部材３０の双方が第一折片部３６を備えるものであり、隣接して配置される二つの鋼板部材３０のそれぞれの第一折片部３６が、相互に他方の鋼板部材３０の側面部３２と重ね合わせられている補強部５６が形成されている。 Moreover, as shown in FIG. 5(b), at each corner 22 of the frame 20, both of the two steel plate members 30 arranged adjacent to each other are provided with the first folded pieces 36. A reinforcing portion 56 is formed in which the first folded portion 36 of each of the two steel plate members 30 arranged side by side is overlapped with the side surface portion 32 of the other steel plate member 30 .

言い換えれば、補強部５６は、第一屈曲部３４を境界として側面部３２と第一折片部３６とがＬ字状をなす部分が重なることにより、鋼板部材３０の他の部分と比較して強度を向上させた部分とされている。また、貫通枠１０は、４つの角部２２において、二つの鋼板部材３０の側面部３２と第一折片部３６とが相互に重なる補強部５６が形成されている。 In other words, the reinforcing portion 56 is formed by overlapping the L-shaped portion of the side portion 32 and the first folded piece portion 36 with the first bent portion 34 as a boundary, so that the reinforcing portion 56 is compared with other portions of the steel plate member 30. It is said to be a part with improved strength. In the four corners 22 of the penetrating frame 10, reinforcing portions 56 are formed in which the side portions 32 and the first folded pieces 36 of the two steel plate members 30 overlap each other.

鋼板部材３０ａ，３０ｂの上方開口２６ａ側に設けられた第二折片部４０、及び鋼板部材３０ｃ，３０ｄの上方開口２６ａ側に設けられた第二折片部４０は、枠体２０のフランジ部２８ａを構成している。また、鋼板部材３０ａ，３０ｂの下方開口２６ｂ側に設けられた第二折片部４０、及び鋼板部材３０ｃ，３０ｄの下方開口２６ｂ側に設けられた第二折片部４０は、枠体２０のフランジ部２８ｂを構成している。 The second folded piece portion 40 provided on the upper opening 26a side of the steel plate members 30a and 30b and the second folded piece portion 40 provided on the upper opening 26a side of the steel plate members 30c and 30d are the flange portion of the frame 20 28a. In addition, the second folded piece portion 40 provided on the side of the lower opening 26b of the steel plate members 30a and 30b and the second folded piece portion 40 provided on the side of the lower opening 26b of the steel plate members 30c and 30d It constitutes the flange portion 28b.

また、フランジ部２８ａには、複数のねじ孔２９が設けられている。枠体２０は、蓋プレート６０のねじ孔６２と枠体２０のねじ孔２９とにビス（図示を省略）を挿通させることで、枠体２０に対して蓋プレート６０を取り付けることができる。 A plurality of screw holes 29 are provided in the flange portion 28a. The lid plate 60 can be attached to the frame 20 by inserting screws (not shown) through the screw holes 62 of the lid plate 60 and the screw holes 29 of the frame 20 .

以上、本発明の実施形態に係る貫通枠１０について説明したが、本発明の貫通枠は、上述の実施形態に限定されない。 Although the through frame 10 according to the embodiment of the present invention has been described above, the through frame of the present invention is not limited to the above-described embodiment.

具体的には、上述の実施形態に係る貫通枠１０では、接合部５２の高さ方向Ｈに３つの溶接部５４を備えるものを一例として示したが、本発明の貫通枠はこれに限定されない。例えば、本発明の貫通枠の接合部は、高さ方向に２つの接合部を有するものであってもよいし、４以上の接合部を有するものであってもよい。 Specifically, in the through frame 10 according to the above-described embodiment, an example in which three welded portions 54 are provided in the height direction H of the joint portion 52 is shown, but the through frame of the present invention is not limited to this. . For example, the joint portion of the penetration frame of the present invention may have two joint portions in the height direction, or may have four or more joint portions.

また、上述の実施形態に係る貫通枠１０では、４つの角部２２の全てにおいて隣接する鋼板部材３０の第一屈曲部３４が重なり補強部５６が形成されているものを挙げて説明したが、本発明の貫通枠はこれに限定されない。例えば、本発明の貫通枠は、隣接する鋼板部材のうちのいずれか一方に第一屈曲部及び第一折片部を設けて、当該第一折片部と他方の鋼板部材とをスポット溶接により接合された接合部を設けたものであってもよい。 In addition, in the through frame 10 according to the above-described embodiment, the reinforcing portion 56 is formed by overlapping the first bent portions 34 of the adjacent steel plate members 30 at all four corner portions 22. The penetration frame of the present invention is not limited to this. For example, in the penetration frame of the present invention, one of the adjacent steel plate members is provided with a first bent portion and a first folded piece portion, and the first folded piece portion and the other steel plate member are spot-welded. It may be provided with a joined joint.

本発明の貫通枠は、床スラブに開口を形成するためのものとして、好適に採用することができる。 INDUSTRIAL APPLICABILITY The penetration frame of the present invention can be suitably employed for forming an opening in a floor slab.

１０ 貫通枠
２０ 枠体
２２ 角部
２２ａ 角部
２２ｂ 角部
２２ｃ 角部
２２ｄ 角部
２４ 側面
２４ａ 側面
２４ｂ 側面
２４ｃ 側面
２４ｄ 側面
２６ａ 上方開口（開口）
２６ｂ 下方開口（開口）
２８ａ フランジ部
２８ｂ フランジ部
３０ 鋼板部材
３０ａ 鋼板部材
３０ｂ 鋼板部材
３０ｃ 鋼板部材
３０ｄ 鋼板部材
３４ 第一屈曲部
３６ 第一折片部
３８ 第二屈曲部
４０ 第二折片部
５２ 接合部
５４ 溶接部
Ｈ 高さ方向 10 Penetration Frame 20 Frame 22 Corner 22a Corner 22b Corner 22c Corner 22d Corner 24 Side 24a Side 24b Side 24c Side 24d Side 26a Upper opening (opening)
26b Lower opening (opening)
28a flange portion 28b flange portion 30 steel plate member 30a steel plate member 30b steel plate member 30c steel plate member 30d steel plate member 34 first bent portion 36 first folded piece portion 38 second bent portion 40 second folded piece portion 52 joint portion 54 welded portion H Height direction

Claims (4)

高さ方向の両端に開口を備える枠体を有し、
前記枠体が、
二以上の鋼板部材により構成され、
複数の角部及び複数の側面が形成されるものであり、
少なくとも一つの前記鋼板部材が、前記高さ方向と交差する方向の端部が屈曲された第一折片部を備えるものであり、
複数の前記角部の少なくとも一部において、
隣接する二つの前記鋼板部材の一方の前記第一折片部と他方の前記鋼板部材とが重ね合わせられて接合されている接合部が形成されており、
前記接合部には、二つの前記鋼板部材の接触面の一部がスポット溶接により融解して接合された溶接部を備えるものであることを特徴とする貫通枠。 Having a frame with openings at both ends in the height direction,
The frame body
Consists of two or more steel plate members,
A plurality of corners and a plurality of side surfaces are formed,
At least one of the steel plate members includes a first folded piece portion in which an end portion in a direction intersecting the height direction is bent,
At least part of the plurality of corners,
A joint portion is formed in which the first folded piece portion of one of the two adjacent steel plate members and the steel plate member of the other are overlapped and joined,
The penetration frame, wherein the joint portion includes a weld portion in which a portion of the contact surface of the two steel plate members is melted and joined by spot welding. 複数の前記角部の少なくとも一部において、
隣接して配置される二つの前記鋼板部材の双方が、前記第一折片部を備えるものであり、
隣接して配置される二つの前記鋼板部材の前記第一折片部が、相互に他方の前記鋼板部材と重ね合わせられていることを特徴とする請求項１に記載の貫通枠。 At least part of the plurality of corners,
Both of the two adjacently arranged steel plate members are provided with the first folded piece portion,
2. The penetration frame according to claim 1, wherein the first folded piece portions of two of the steel plate members arranged adjacent to each other are overlapped with the other of the steel plate members. 少なくとも一つの前記接合部において、
二以上の前記溶接部が、前記高さ方向に沿って形成されていることを特徴とする請求項１又は２に記載の貫通枠。 at least one of said joints,
The penetration frame according to claim 1 or 2, wherein two or more of the welded portions are formed along the height direction. 前記枠体が、前記開口の縁部から前記開口の外側に向けて形成されるフランジ部を備え、
前記鋼板部材が、前記高さ方向の端部が屈曲された第二折片部を備えるものであり、
前記鋼板部材を構成して前記枠体が形成された状態において、前記第二折片部が前記フランジ部を構成することを特徴とする請求項１～３のいずれかに記載の貫通枠。 The frame includes a flange portion formed from the edge of the opening toward the outside of the opening,
The steel plate member includes a second folded piece portion in which the end portion in the height direction is bent,
The penetration frame according to any one of claims 1 to 3, wherein the second folded piece portion constitutes the flange portion in a state in which the steel plate member is constructed to form the frame.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59114716U (en) * 1983-01-25 1984-08-02 古河電気工業株式会社 Cable penetration part
JPH0533503A (en) * 1991-08-01 1993-02-09 Taikisha Ltd Sleeve for forming floor-through duct
JP3023127U (en) * 1995-09-25 1996-04-12 株式会社中川製作所 Air conditioning equipment Ventilation sleeve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59114716U (en) * 1983-01-25 1984-08-02 古河電気工業株式会社 Cable penetration part
JPH0533503A (en) * 1991-08-01 1993-02-09 Taikisha Ltd Sleeve for forming floor-through duct
JP3023127U (en) * 1995-09-25 1996-04-12 株式会社中川製作所 Air conditioning equipment Ventilation sleeve

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