JP3062834U

JP3062834U - Pipe fittings

Info

Publication number: JP3062834U
Application number: JP1999001127U
Authority: JP
Inventors: 啓二矢嶋
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-01-11
Filing date: 1999-01-11
Publication date: 1999-10-15
Anticipated expiration: 2005-01-11

Abstract

(57)【要約】（修正有）【課題】管の接続に際して、主なる係止部位を管の内周
壁部に設けることにより、組立現場での接続作業を、主
に短いネジだけで行えるよう容易にして、かつ仕上りの
外観も、管の外周部に、従来の継ぎ手に散見されるよう
な段差をなくす。【解決手段】最少限４枚からなる、複数の支持板１と、
その中心部を貫いて連続する軸２により構成される、複
合構造体により、管４の内周壁部に、主なる係止部３を
設けて、管を接続することを目的とする管の継ぎ手に関
するものである。 (57) [Summary] (Problem corrected) [Problem] When connecting a pipe, by providing a main locking portion on an inner peripheral wall of the pipe, connection work at an assembly site can be mainly performed with only short screws. It is easy and the appearance of the finish also eliminates the steps on the outer periphery of the pipe that are scattered in conventional fittings. A plurality of support plates 1 including at least four sheets,
A pipe joint for connecting the pipes by providing a main locking portion 3 on the inner peripheral wall of the pipe 4 by a composite structure constituted by the shaft 2 continuous through the center thereof. It is about.

Description

[Detailed description of the invention]

【０００１】〔産業上の利用分野〕本考案は、鋼材を例にすると、角鋼よりは丸鋼、丸鋼よりは角管、角管よりは鋼管と、それぞれ軽い特徴を有する立場にある、鋼管、角管等に代表される管の継ぎ手に関するものである。従って、鋼材の管のみならず、ステンレス、アルミ、樹脂、竹、紙等の管にも適用が可能である。[0001] The present invention relates to a steel pipe, which has a lighter characteristic of a round steel than a square steel, a square pipe rather than a round steel, a steel pipe than a square pipe, taking steel as an example. And pipe joints such as square pipes. Therefore, the present invention can be applied not only to steel pipes but also to pipes made of stainless steel, aluminum, resin, bamboo, paper, and the like.

【０００２】〔従来の技術〕鋼材を例にすると、従来の管の接続方法に関しては、図６から図１３に示す方法が主に一般的に知られている。これを要約すると、次の４法に区分出来る。１．溶接法…図６と図７参照２．溶接法プラスネジ止め法…図８参照３．ネジ止め法…図９から図１２参照４．ネジ切り法…図１３参照[Prior Art] [0002] Taking steel as an example, a method shown in Figs. 6 to 13 is mainly generally known as a conventional pipe connection method. In summary, it can be divided into the following four methods. 1. Welding method: see Fig. 6 and Fig. 7 Welding method plus screwing method ... see Fig. 8 Screwing method: see FIGS. 9 to 12 Screw cutting method ... See Fig.13

【０００３】〔考案が解決しようとする課題〕従来の技術で区分した分類により、その有している問題点を列挙すると、次のとおりである。１．溶接法：・強度は優れるが、現場施工に専門技術、溶接装置を要する。・メッキ等の表面処理加工が、溶接後では長尺物となるので、運搬、処理に際して不便。・一度溶接してしまうと解体・分解が困難な為、仮設構造物には適さない。２．溶接法とネジ止め法の複合方式：・現場施工に優れる反面、準備に旋盤加工等の機械加工が必要。・外周面上、フランジが段差となり、管に沿って外壁板を張る時に障害となる。３．ネジ止め法：・管の外径に対応する、長寸、太径のボルトが必要になる。・ボルトの頭やナットが、外周面で段差になる。・管の貫通穴あけ作業は、管径が太くなるほど難しい。４．ネジ切り法・専用のネジ切り装置が必要・薄肉管対策が難しい。・現場での組立（締め付け）が難しい。[Problems to be Solved by the Invention] Problems to be solved by the conventional technologies are listed below. 1. Welding method: ・ Excellent strength, but requires specialized skills and welding equipment for on-site construction.・ Surface treatment such as plating becomes long after welding, which is inconvenient for transportation and treatment. -Once welded, it is difficult to disassemble and disassemble, so it is not suitable for temporary structures. 2. A combined method of welding and screwing: ・ Excellent for on-site construction, but requires machining such as lathing in preparation.・ The flange becomes a step on the outer peripheral surface, which becomes an obstacle when the outer wall plate is stretched along the pipe. 3. Screwing method: ・ Long and large diameter bolts corresponding to the outer diameter of the pipe are required.・ Bolt heads and nuts become steps on the outer peripheral surface. -It is difficult to drill through holes in pipes as the pipe diameter increases. 4. Thread cutting method ・ Special thread cutting device is required. ・ It is difficult to take measures against thin-walled pipes.・ It is difficult to assemble (tighten) on site.

【０００４】本考案は、従来の技術の有するこのような問題点に鑑みてなされたものであり、その解決しようとする課題は、次のとおりである。１．特別な技術、装置、道具を使わずに現場施工が出来ること。２．管の外周部に、継手、ボルトの頭等の大きな段差を生じないこと。３．長寸、太径のボルトとナットは使わず、短寸のネジだけで、管の接続が出来ること。４．構造用管に特有の、内周部シーム跡（溶接線）、内寸の不均一等にも、対応出来る、挿入性能を有すること。５．恒久構造物だけでなく、仮設構造物にも対応出来る簡易な機構と性能を有すること。６．メッキ等の表面処理を現場施工の前に実施することを可能にして、品質保証出来ること。７．継ぎ手の重量軽減対策が可能で、かつ品質保証出来ること。８．薄肉管に対しても対応出来る機構であること。[0004] The present invention has been made in view of such problems of the prior art, and the problems to be solved are as follows. 1. Being able to perform on-site construction without using special technologies, equipment and tools. 2. No large steps such as joints and bolt heads should occur on the outer circumference of the pipe. 3. Pipes can be connected with only short screws without using long or large diameter bolts and nuts. 4. It must have insertability that can cope with the inner seam traces (weld lines) and uneven inner dimensions that are unique to structural pipes. 5. It must have a simple mechanism and performance that can handle not only permanent structures but also temporary structures. 6. To be able to perform surface treatment such as plating before on-site construction and to assure quality. 7. Measures to reduce the weight of the joint are possible and quality can be guaranteed. 8. The mechanism must be able to handle thin-walled tubes.

【０００５】〔課題を解決するための手段〕上記の目的を達成するために、本考案の継ぎ手は、下記の構成より成る。（本項では、図１及び図２を参照して述べる。他図参照の時は図番を示す）１．最少限４枚から成る、複数の支持板（１）（１）Ａ〜（１）Ｄ参照・てこの原理で支持力を得る為に、支持板（Ａ）及び（Ｂ）は、管Ａ（４）に、現場施工時に挿入されて、ネジ止めされる。・同様の原理で、支持板（Ｃ）及び（Ｄ）は、管Ｂ（４）に挿入されるが、強度保持の観点から、予め溶接作業が施される。（管Ｂ側は、強度保持の観点から、二管のうち、短尺の側又は下部側に位置する管が選択されることが望ましい。）・各支持板の外観形状は、丸管対応用には図３（角管対応用には図１４参照）に示す形状がある。共通点は、管内周壁部に等角間隔の係止部を有する。（図２の、（３−Ａ）から（３−Ｌ）の１２ポイントが係止部となる）・係止部の角度位置は支持板４枚共、共通位置に配される。（図２参照）・４枚の支持板の中央部には、センター穴が設けられ、軸を介して、一体構造物として、予め溶接が行われる。（図５参照）・又４枚の支持板は、軸に棒ネジを選択する場合には、ナット止めによる方法でも、一体構造物を得ることが出来る。（図５参照）・支持板の構成枚数は、４枚を下限として、接続部位の状況により、増加することが可能である。・全体重量確保より、強度確保を主眼とする場合には、図４に示す、従来の技術との併用が可能である。（併用効果として、内接管を短尺に出来、又ネジも短い寸法で締結出来る）・管内周壁と接する係止部は、下記のとおり、固定される。支持板ＣとＤ（事前溶接される側）：１枚に付き、最低３ヵ所（３点保持の原則を用い、図２で例示すれば、（３−Ｇ），（３−Ｉ），（３−Ｋ）の如く１２０度等間隔が望ましい）を、管の外周部から支持板に達する貫通穴をあけて、ポイント溶接加工を施す。支持板ＡとＢ（現場組立を行う側）：上記と同じく１枚に付き、最低３ヵ所（図２で例示すれば（３−Ａ），（３−Ｃ），（３−Ｅ）の如く１２０度等間隔が望ましい）を、管の外周部から支持板に達する貫通下穴をあけて、短寸のタップネジにより固定する。（恒久構造物の場合には、タップネジに替えて、ポイント溶接も可能である。）・支持板は正多角形体形状なので、管に挿入する場合、シーム部（図３参照）を避けて、抵抗感なく行う事が出来る。[Means for Solving the Problems] In order to achieve the above object, a joint of the present invention has the following configuration. (This section will be described with reference to FIGS. 1 and 2. When referring to other figures, the figure number is shown.) A plurality of support plates (1) composed of a minimum of four sheets (1) Refer to A to (1) D. In order to obtain a support force based on the principle of leverage, the support plates (A) and (B) are connected to a tube A ( In 4), it is inserted at the time of site construction and screwed. -According to the same principle, the support plates (C) and (D) are inserted into the pipe B (4), but are welded in advance from the viewpoint of maintaining strength. (On the tube B side, it is desirable to select the tube located on the short side or the lower side of the two tubes from the viewpoint of maintaining strength.)-The external shape of each support plate is designed for round tubes Has a shape shown in FIG. 3 (see FIG. 14 for a square tube). The common feature is that the inner peripheral wall has locking portions at regular angular intervals. (Twelve points from (3-A) to (3-L) in FIG. 2 are the locking portions.) The angular positions of the locking portions are arranged at a common position for all four support plates. (See Fig. 2) ・ A center hole is provided in the center of the four support plates, and welding is performed in advance as an integral structure via a shaft. (See Fig. 5) ・ In the case of selecting a bar screw for the four support plates, an integral structure can be obtained even by a method using a nut. (Refer to FIG. 5)-The number of support plates can be increased depending on the connection site, with the lower limit being four. -When securing the strength is more important than securing the overall weight, it can be used in combination with the conventional technology shown in Fig. 4. (As a combined effect, the length of the inscribed pipe can be shortened and the screw can be fastened with a short dimension.) ・ The locking part in contact with the inner peripheral wall of the pipe is fixed as follows. Support plates C and D (sides to be pre-welded): At least three places per sheet (using the principle of holding three points, as shown in FIG. 2, for example, (3-G), (3-I), (3-I) (Preferably at 120 ° intervals as in 3-K)), and a point welding process is performed by making a through hole reaching the support plate from the outer periphery of the pipe. Support plates A and B (on-site assembly side): At least three places per sheet as in the above (such as (3-A), (3-C), and (3-E) in FIG. 2). (Preferably at equal intervals of 120 degrees), make a through hole to reach the support plate from the outer periphery of the pipe, and fix it with short tap screws. (In the case of a permanent structure, point welding can be used instead of tap screws.)-Since the support plate has a regular polygonal shape, when inserting it into a pipe, avoid the seam (see Fig. 3) and use a resistance. It can be done without feeling.

【０００６】２．軸（（２）参照）・前項と重複するが、軸は、複数の支持板の中央部を貫通して成る構造体の基軸となるので、曲げ応力に対して強くなければならない。・上記の目的を達成する為には太くて丈夫な棒材が適しているが、構造体重量削減の観点からパイプ又はアルミ等の異種材料も選択出来るのが、本考案の特徴である。・事前に溶接一体加工される支持板の固定位置を、予め規準化しておけば、管Ａ（４）及び管Ｂ（４）の下穴加工も並行して、事前に進める事が可能である。３．複合構造体・上述の支持板と軸を一体にした複合構造体を、本考案では、先ず得る。その方法に関しては図５に示すが、溶接法が主であり、ナット止め法は従の立場にある。・複合構造体とは言え、小規模なので、溶接後の段階でも、メッキ処理等の運搬に際しても、支障はない。[0006] 2. Shaft (Refer to (2)) ・ Although overlapping with the preceding paragraph, the shaft must be strong against bending stress because it is the base axis of the structure that penetrates through the central part of the multiple support plates.・ Thick and durable rods are suitable for achieving the above purpose, but it is a feature of the present invention that different materials such as pipes or aluminum can be selected from the viewpoint of structural weight reduction. If the fixing position of the support plate to be integrally welded in advance is standardized in advance, it is possible to advance in advance the preparation of the pilot holes of the pipe A (4) and the pipe B (4) in advance. . 3. Composite Structure-In the present invention, a composite structure in which the above-described support plate and the shaft are integrated is first obtained. The method is shown in Fig. 5, but the welding method is the main method, and the nut fixing method is in the subordinate position. -Although it is a composite structure, it is small-scale, so there is no problem at the stage after welding or during transportation such as plating.

【０００７】〔作用〕・上記の手段により得た、複数の支持板と軸から成る複合構造体は、先ず現場接続作業に先立ち、図１に示す管Ｂ（４）に、ポイント溶接されて、管Ｂと一体構造物とする。（管Ｂは強度保持の観点から、上述したが、二つの管のうち短尺側又は下部側に位置する管を選択するのが望ましい）・現場に搬入された上記の一体構造物は、管Ａ（４）に挿入され、支持板１枚当り１２０度の等角度間隔にあけられた３ヵ所の係止部をタップネジにより、管と一体にて固定される。[Operation] The composite structure comprising a plurality of support plates and a shaft obtained by the above means is first point-welded to the pipe B (4) shown in FIG. 1 prior to the on-site connection work. , Tube B and an integral structure. (The tube B is described above from the viewpoint of maintaining strength, but it is preferable to select the tube located on the short side or the lower side of the two tubes.)-The above-mentioned integrated structure carried into the site is the tube A The three locking parts, which are inserted in (4) and are spaced at equal angular intervals of 120 degrees per support plate, are fixed integrally with the pipe by tap screws.

【０００８】〔実施例）本考案の実施例を、市販鋼材に求めて、以下に示す。管：構造用鋼管２本外径：４８．６ｍｍ肉厚：２．３ｍｍ正六角形の対辺計算値３８．３ｍｍ支持板：六角鋼４枚正六角形の対辺寸法３８ｍｍ切断板厚寸法１５ｍｍ軸：丸鋼１本外径１５ｍｍ１．六角鋼の切断片４枚は、中央部に、軸の丸棒が貫通するように、直径１５．５ｍｍの穴あけ加工を施す。２．軸の丸鋼と支持板の六角鋼切断片４枚は図５に示す、溶接法により、所定の位置に溶接されて、一体構造となる。３．２．の複合構造体は、短尺側の鋼管に挿入され、当該管側の支持板２枚が、管と一体溶接される。溶接個所は支持板１枚当り３ヵ所×２枚＝合計６ヵ所４．３の構造体に、メッキ処理を施す。５．上記構造体は、現場にて、残りの鋼管に組立て挿入され、当該管側の支持板２枚は、管と貫通する下穴加工の後、タップネジにより締結される。（ネジ止め個所は上記３項と同じく計６ヵ所）６．上記の如く、本考案に基く管の継ぎ手は接続された。[0008] [Examples] Examples of the present invention will be described below for a commercially available steel material. Pipe: 2 structural steel pipes Outer diameter: 48.6 mm Wall thickness: 2.3 mm Calculated value of the opposite side of a regular hexagon 38.3 mm Support plate: 4 hexagonal steel 4 sides of the regular hexagon 38 mm Cutting thickness 15 mm Shaft: Round steel 1 piece outer diameter 15mm The four pieces of hexagonal steel had a diameter of 15 mm in the center so that the round bar of the shaft penetrated. Drill a hole of 5 mm. 2. The round steel of the shaft and the four hexagonal steel cut pieces of the support plate are welded to predetermined positions by a welding method as shown in FIG. 5 to form an integral structure. 3. 2. Is inserted into the short steel pipe, and the two support plates on the pipe side are integrally welded to the pipe. 3. Welding places are 3 places per support plate x 2 pieces = 6 places in total. The structure of No. 3 is plated. 5. The above structure is assembled and inserted into the remaining steel pipe at the site, and the two support plates on the pipe side are fastened with tap screws after drilling a pilot hole through the pipe. (The number of screwing points is 6 as in the above 3). As described above, the pipe joints according to the present invention were connected.

【０００９】〔考案の効果〕本考案に基く管の継ぎ手は、上述のように構成されているので、次のような効果がある。１．実施例５項のように、現場施工が簡便である。２．ボルト・ナットを使わず、短寸のタップネジを使うので、管の外周部に大きな段差が生じない。３．支持板の形状が、実施例１項のように、六角形なので、管のシーム部特有のバリも避けてスムースに、継ぎ手が挿入出来る。４．実施例５項のように、長尺側がネジ止め方式なので、誤施工に対しても修正が可能な上、仮設構造物に対しても適用が可能である。５．実施例４項のように、現場施工の前にメッキ処理が可能なので、品質保証が可能である。６．図３に示すように、支持板の形状が種々選択出来るので、全体構成重量対策がとりやすい。７．図３のハニカム状支持板のような形状ならば、薄肉アルミ管であっても構造物としての利用が可能になる。[Effects of the Invention] The pipe joint based on the present invention is configured as described above, and has the following effects. 1. As in the fifth embodiment, on-site construction is simple. 2. Since a short tap screw is used instead of bolts and nuts, there is no large step on the outer circumference of the pipe. 3. Since the shape of the support plate is hexagonal as in the first embodiment, the joint can be inserted smoothly without burrs peculiar to the seam portion of the pipe. 4. As in the fifth embodiment, since the long side is screwed, it can be corrected even for erroneous construction and can be applied to temporary structures. 5. As described in the fourth embodiment, plating can be performed before construction on site, so that quality assurance is possible. 6. As shown in FIG. 3, since the shape of the support plate can be variously selected, it is easy to take measures against the weight of the entire structure. 7. With the shape like the honeycomb-shaped support plate of FIG. 3, even a thin aluminum tube can be used as a structure.

【００１０】[0010]

[Brief description of the drawings]

【図１】本考案の基本構成を示す正面図。FIG. 1 is a front view showing a basic configuration of the present invention.

【図２】本考案の基本構成を示す側面図。FIG. 2 is a side view showing a basic configuration of the present invention.

【図３】本考案を丸管に適用する際の支持板の形状を
示す断面図。FIG. 3 is a sectional view showing the shape of a support plate when the present invention is applied to a round tube.

【図４】本考案と従来の技術を組み合わせて成る構成
を示す断面図。FIG. 4 is a cross-sectional view showing a configuration formed by combining the present invention and a conventional technique.

【図５】本考案の実施例を示す、複合構造体の正面
図。FIG. 5 is a front view of the composite structure showing the embodiment of the present invention.

【図６】従来の技術を示す断面図。FIG. 6 is a sectional view showing a conventional technique.

【図７】同上FIG. 7

【図８】同上FIG. 8

【図９】同上FIG. 9

【図１０】同上FIG. 10

【図１１】同上FIG. 11

【図１２】同上FIG. 12

【図１３】同上FIG. 13

【図１４】本考案を角管に適用する際の支持板の形状
を示す断面図。FIG. 14 is a sectional view showing a shape of a support plate when the present invention is applied to a square tube.

[Explanation of symbols]

（１）支持板（１）Ａ〜（１）Ｄは、最少限４枚から成る、本考案の
支持板の設置位置を区分する為に付す。（２）軸（３）係止部（３−Ａ）〜（３−Ｆ）は、現場にて組み立て接続され
る側から見た、正六角形の場合の係止部を示す。又現場
施工を伴う、ネジ止メ位置を示す説明の際にも引用する
為のものである。（３−Ｇ）〜（３−Ｌ）は、現場組み
立ての前に溶接加工される側から見た正六角形の場合の
係止部を示す。又ポイント溶接が行われる時、その位置
を説明の際にも引用する為のものである。（４）管管Ａ現場組み立てが行われる側の管を示す管Ｂ現場組み立てに先立ち、一体溶接加工される側の
管を示す。(1) Support plate (1) A to (1) D are attached to distinguish the installation position of the support plate of the present invention, which consists of a minimum of four sheets. (2) Shaft (3) Locking portions (3-A) to (3-F) indicate locking portions in the case of a regular hexagon when viewed from the side where they are assembled and connected on site. It is also referred to when explaining the position of the screw fixing portion accompanying the on-site construction. (3-G) to (3-L) show the engaging portions in the case of a regular hexagon viewed from the side to be welded before the on-site assembly. When point welding is performed, the position is also referred to in the description. (4) Pipes Pipe A Shows the pipe on the side where on-site assembly is performed. Pipe B Shows the pipe on the side that is to be integrally welded prior to on-site assembly.

Claims

[Utility model registration claims]

An inner peripheral wall portion of a pipe (4) comprising a composite structure comprising a minimum of four support plates (1) and a continuous shaft (2) passing through the center thereof. To
A pipe joint for connecting pipes by providing a main locking portion (3).