JPWO2009125559A1 - Structure for enhancing pipe connection strength of split joints - Google Patents

Structure for enhancing pipe connection strength of split joints Download PDF

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JPWO2009125559A1
JPWO2009125559A1 JP2010507140A JP2010507140A JPWO2009125559A1 JP WO2009125559 A1 JPWO2009125559 A1 JP WO2009125559A1 JP 2010507140 A JP2010507140 A JP 2010507140A JP 2010507140 A JP2010507140 A JP 2010507140A JP WO2009125559 A1 JPWO2009125559 A1 JP WO2009125559A1
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joint
pipe
cylindrical portion
ring member
split
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勇 箕輪
勇 箕輪
清 小野田
清 小野田
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Yazaki Kako Corp
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
    • E04B1/5837—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form
    • E04B1/585—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form with separate connection devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F16B7/044—Clamping or clipping connections for rods or tubes being in angled relationship
    • F16B7/048—Clamping or clipping connections for rods or tubes being in angled relationship for rods or for tubes without using the innerside thereof
    • F16B7/0486—Clamping or clipping connections for rods or tubes being in angled relationship for rods or for tubes without using the innerside thereof forming an abutting connection of at least one tube
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B2001/5875—Connections for building structures in general of bar-shaped building elements using exterior clamping plates or shells

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

【課題】複数に分割された一組のセグメントをボルト及びナットで結合し、その締め付け力によってパイプ材と接続する分割型継手のパイプ接続強度（引き抜き耐力）を増強させる構造を提供する。【解決手段】複数に分割された一組のセグメントをボルト及びナットで結合し、ボルト・ナットの締め付け力によってパイプを接続する分割型継手は、パイプと接合された継手の筒状部の外周面に、少なくとも同筒状部の外径よりも小径のリング部材が筒状部の外径を縮径して取り付けられている。【選択図】図３The present invention provides a structure in which a pipe joint strength (pullout strength) of a split joint that joins a pair of segments divided into a plurality of segments with bolts and nuts and is connected to a pipe material by the tightening force thereof is provided. A split-type joint in which a set of segments divided into a plurality of parts is coupled with bolts and nuts and pipes are connected by tightening force of the bolts and nuts is an outer peripheral surface of a tubular portion of the joint joined to the pipes Further, at least a ring member having a diameter smaller than the outer diameter of the cylindrical portion is attached by reducing the outer diameter of the cylindrical portion. [Selection] Figure 3

Description

この発明は、合成樹脂被覆接着鋼管などのパイプ材を接続して組み立て、棚等のパイプ構造物を構築するために用いられる継手であり、特に複数に分割された一組のセグメントをボルト及びナットで結合し、その締め付け力によってパイプ材と接続する分割型継手のパイプ接続強度（引き抜き耐力）を増強させる構造に関する。   The present invention relates to a joint used to construct a pipe structure such as a shelf by connecting and assembling pipe materials such as synthetic resin-coated adhesive steel pipes, and in particular, a set of segments divided into a plurality of bolts and nuts. It is related with the structure which strengthens the pipe connection intensity | strength (pull-out proof strength) of the split-type joint connected with pipe material and connecting with pipe material with the clamping force.

従来、複数のセグメントで構成された分割型の継手とパイプとの接続は、図６に例示するように、継手６０のセグメント６１、６２において、パイプ６３、６３を挟み持つ貫通側の筒状部６４と非貫通側の筒状部６５のうち、非貫通側の筒状部６５の中央部をボルト６６とナット６７で締め付ける構成で実現しており、下記の特許文献１及び２に記載されて公知である。
つまり、前記締め付け力が継手のパイプ材への接続強度であり、同パイプ材の引き抜き防止効果を奏する。
特開２００４−１６９７７５号公報 特許第３０１６２００号公報 Conventionally, as shown in FIG. 6, the split-type joint composed of a plurality of segments and the pipe are connected to each other in the segments 61 and 62 of the joint 60 on the through-side tubular portion sandwiching the pipes 63 and 63. 64 and the non-penetrating-side cylindrical portion 65, the center portion of the non-penetrating-side cylindrical portion 65 is tightened with a bolt 66 and a nut 67, and is described in Patent Documents 1 and 2 below. It is known.
That is, the tightening force is the connection strength of the joint to the pipe material, and has the effect of preventing the pipe material from being pulled out.
JP 2004-169775 A Japanese Patent No. 3016200

しかし、上記継手６０によるパイプ６３の接続強度は、ボルト６６及びナット６７の締め付け力のみであるため当然限界がある。接続強度を高めるにはボルト６６、ナット６７を強力に締め付けること以外にない。しかし、過大に締め付けると、図７に誇張して示すように、非貫通側の筒状部６５が、挟み付けたパイプ６３の端部を支点として先端側が浮き上がる変形（矢印）をしてかえって緩み、パイプ６３に対する接続強度が低下する現象を確認した。そうすると、パイプ構造物を必要な強度で組み立てることにばらつきを生じ、一定の品質を確保することが難しいという問題点がある。因みに、貫通側の筒状部６４は、セグメント６１、６２の分割縁に蟻差し型の連結部６４ａ、６４ａが設けられて両セグメントを堅固に連結するので、上記浮き上がり変形は殆どなく、非貫通側の筒状部６５のセグメント６１、６２に変形が集中してしまう。近年、高荷重に対応するパイプ構造物の需要から、パイプの強度を高めるために、外径の大きいパイプ材が必要とされているが、そのためには継手に高い接続強度が求められることになり、筒状部を構成するセグメントの変形を防止しつつパイプの接続強度を増強させる技術が早急に要望されている。   However, the connection strength of the pipe 63 by the joint 60 is naturally limited because it is only the tightening force of the bolt 66 and the nut 67. The only way to increase the connection strength is to tighten the bolts 66 and nuts 67 strongly. However, if excessively tightened, as shown exaggeratedly in FIG. 7, the tubular portion 65 on the non-penetrating side is deformed so that the tip side rises with the end of the clamped pipe 63 as a fulcrum (arrow), and loosens. The phenomenon in which the connection strength to the pipe 63 is reduced was confirmed. If it does so, there will be dispersion | variation in assembling a pipe structure with required intensity | strength, and there exists a problem that it is difficult to ensure fixed quality. Incidentally, the cylindrical portion 64 on the penetrating side is provided with dovetail-shaped connecting portions 64a and 64a at the dividing edges of the segments 61 and 62 so that both the segments are firmly connected. Deformation concentrates on the segments 61 and 62 of the cylindrical portion 65 on the side. In recent years, in order to increase the strength of pipes due to the demand for pipe structures that can handle high loads, pipe materials with large outer diameters are required. To this end, joints require high connection strength. There is an urgent need for a technique for enhancing the connection strength of pipes while preventing deformation of the segments constituting the cylindrical portion.

したがって、本発明の目的は、継手のパイプ接続強度を、筒状部を構成するセグメントの変形を抑止又は防止することで増強させて、精度及び強度の高いパイプ構造物の組立を一定の品質で実現可能な継手の挟持力増強構造を提供することにある。   Therefore, an object of the present invention is to increase the pipe connection strength of the joint by suppressing or preventing the deformation of the segments constituting the cylindrical portion, and to assemble the pipe structure with high accuracy and strength with a certain quality. An object of the present invention is to provide a structure for enhancing the holding force of a joint that can be realized.

上述した従来技術の課題を解決するための手段として、請求項１に記載した発明に係る分割型継手のパイプ接続強度増強構造は、
複数に分割された一組のセグメント２、３をボルト５及びナット６で結合し、前記ボルト５・ナット６の締め付け力によってパイプ７を接続する分割型継手１において、
前記パイプ７と接合された継手１の筒状部１Ｂの外周面に、少なくとも筒状部１Ｂの外径よりも小径のリング部材９が同筒状部１Ｂの外径を縮径して取り付けられていることを特徴とする。As a means for solving the above-mentioned problems of the prior art, the pipe joint strength enhancing structure of the split joint according to the invention described in claim 1 is:
In the split type joint 1 in which a set of segments 2 and 3 divided into a plurality of parts are coupled by bolts 5 and nuts 6 and the pipes 7 are connected by the tightening force of the bolts 5 and nuts 6.
A ring member 9 having a diameter smaller than the outer diameter of at least the cylindrical portion 1B is attached to the outer peripheral surface of the cylindrical portion 1B of the joint 1 joined to the pipe 7 by reducing the outer diameter of the cylindrical portion 1B. It is characterized by.

請求項２記載の発明は、請求項１に記載した分割型継手のパイプ接続強度増強構造において、
リング部材１１、１４は、円周の一部を切断された半割形状とされ、継手１の筒状部１Ｂの外周面へ嵌めてから、前記切断端部を接合して同筒状部１Ｂへ取り付けられていることを特徴とする。The invention according to claim 2 is the pipe connection strength enhancing structure of the split joint according to claim 1,
The ring members 11 and 14 are formed in a halved shape obtained by cutting a part of the circumference, and after fitting into the outer peripheral surface of the tubular portion 1B of the joint 1, the cut end portions are joined to form the tubular portion 1B. It is attached to.

請求項１の発明に係る分割型継手のパイプ接続強度増強構造によれば、ボルト５・ナット６の締め付け力によってパイプ７を接続した分割型継手１は、特に非貫通側の筒状部１Ｂの外周面に、同筒状部１Ｂの外径よりも小径のリング部材９を同筒状部１Ｂの外径を縮径して取り付けているので、従来の継手とパイプの接続方式を変えることなく、且つ、ボルト５・ナット６を必要十分に締め付けても筒状部１Ｂが浮き上がる変形を確実に抑止して、誰でも容易にパイプの接続強度を一定の品質で高められる。
本発明の継手によるパイプ接続強度は、筒状部１Ｂとパイプ７とが高い密着力を維持して、例えば引き抜き耐力が６００ｋｇｆ以上という高い数値を実現し得るので、外径の大きいパイプ材を使用した高荷重パイプ構造物を高い強度と精度及び品質で構築できる。According to the pipe joint strength increasing structure of the split joint according to the first aspect of the present invention, the split joint 1 in which the pipe 7 is connected by the tightening force of the bolt 5 and the nut 6 is, in particular, the cylindrical portion 1B on the non-penetrating side. Since the ring member 9 having a smaller diameter than the outer diameter of the cylindrical portion 1B is attached to the outer peripheral surface while reducing the outer diameter of the cylindrical portion 1B, the conventional connection method between the joint and the pipe is not changed. In addition, even if the bolt 5 and the nut 6 are tightened sufficiently and sufficiently, the deformation of the cylindrical portion 1B is surely suppressed, and anyone can easily increase the connection strength of the pipe with a certain quality.
As for the pipe connection strength by the joint of the present invention, the tubular portion 1B and the pipe 7 can maintain a high adhesion force and can realize a high numerical value of, for example, a pulling strength of 600 kgf or more. The high-load pipe structure can be constructed with high strength, accuracy and quality.

また、請求項２に係る発明は、円周の一部を切断された半割形状のリング部材１１、１４を、継手１の筒状部１Ｂの外周面へ嵌めてから、前記切断端部を接合して同筒状部１Ｂへ取り付ける構造としたので、新設の他既存のパイプ構造物におけるパイプ接続力の増強を解体することなく容易に行える。   Further, in the invention according to claim 2, after fitting the half-shaped ring members 11, 14 having a part of the circumference cut into the outer peripheral surface of the tubular portion 1 </ b> B of the joint 1, Since it was made the structure joined and attached to the cylindrical part 1B, it can carry out easily without dismantling the pipe connection force in the existing pipe structure other than newly installed.

本発明は、複数に分割された一組のセグメント２、３をボルト５及びナット６で結合し、前記ボルト５・ナット６の締め付け力によってパイプ７と接続する分割型継手１である。
前記パイプ７と接合された継手１の非貫通型の筒状部１Ｂの外周面に、少なくとも筒状部１Ｂの外径よりも小径のリング部材９が筒状部１Ｂの外径を縮径して取り付けられている。The present invention is a split type joint 1 in which a set of segments 2 and 3 divided into a plurality of parts are coupled by bolts 5 and nuts 6 and connected to a pipe 7 by the tightening force of the bolts 5 and nuts 6.
On the outer peripheral surface of the non-penetrating cylindrical portion 1B of the joint 1 joined to the pipe 7, at least a ring member 9 having a diameter smaller than the outer diameter of the cylindrical portion 1B reduces the outer diameter of the cylindrical portion 1B. Attached.

この分割型継手のパイプ接続強度増強構造は、特に、特許文献１及び本出願人が先に出願した特願２００７−３３１５２８号公報に記載した、パイプを挟み持つ筒状部の内周面に設けられた突起と、パイプの端部に設けた凹部とを嵌め合わせて引き抜き耐力を発揮させる構造に実施される。すると、前記突起がリング部材９の押圧力によりパイプの凹部へ密実に食い込んで高い引き抜き耐力を発揮できる。   The pipe connection strength enhancing structure of the split joint is provided on the inner peripheral surface of the cylindrical part sandwiching the pipe, as described in Patent Document 1 and Japanese Patent Application No. 2007-331528 previously filed by the present applicant. The protrusions and the recesses provided at the end portions of the pipes are fitted together to implement a pull-out strength. As a result, the protrusions can bite into the concave portion of the pipe by the pressing force of the ring member 9 and can exhibit a high pulling strength.

以下に、本発明を図１〜３に示した実施例に基づいて説明する。
図１Ａは、分割型継手１でパイプ７、７を仮に接続した状態（リング部材９を嵌める前）を示し、図１Ｂは、図１ＡのＩ−Ｉ矢視断面図を示した。
分割型継手１の基本的な構成は、分割型として既に公知、周知のもの（例えば図６に示すもの）と大差なく、図示例の場合は鋼製の二つのセグメント２、３で成る二分割型で、パイプ７、７を挟み接続する貫通側の筒状部１Ａと非貫通側の筒状部１Ｂとが図示例のものは直角なＴ字形に交わる所謂Ｔジョイントの継手（以下、単に継手１と云う、）の実施例である。また、パイプ７との接続法も従来の方式と変わらず、前記二つのセグメント２、３の筒状部１Ａ、１Ｂで２本のパイプ７を直交状態に支持し、非貫通側の筒状部１Ｂの中央部に設けられた貫通孔４へボルト５を通し、ナット６を締め付けて接続する構成である。Below, this invention is demonstrated based on the Example shown in FIGS.
FIG. 1A shows a state in which the pipes 7 and 7 are temporarily connected by the split joint 1 (before the ring member 9 is fitted), and FIG. 1B shows a cross-sectional view taken along line II in FIG. 1A.
The basic structure of the split type joint 1 is not much different from that already known and known as the split type (for example, the one shown in FIG. 6). In the illustrated example, the split type joint 1 is divided into two segments made of two steel segments 2 and 3. A so-called T-joint joint (hereinafter simply referred to as a joint) in which the through-side tubular portion 1A and the non-through-side tubular portion 1B, which are connected by sandwiching the pipes 7 and 7, intersect with each other in a shape of a right T 1)). Also, the connection method with the pipe 7 is the same as the conventional method, and the two pipes 7 are supported in an orthogonal state by the cylindrical portions 1A and 1B of the two segments 2 and 3, and the cylindrical portion on the non-through side is provided. In this configuration, a bolt 5 is passed through a through hole 4 provided at the center of 1B and a nut 6 is tightened.

上記分割型継手１の各セグメント２、３は、図１Ｂに示すように、両セグメント２、３を接合したとき、その接合部分に隙間８が形成されるようにパイプ７の表面外周を押さえる構成とされている。そして、ボルト５とナット６で締め込むことにより隙間８が隙間８’へせばまり、両セグメント２、３はパイプ７の外周を押さえ込むので、パイプ７の反発力、所謂スプリングバックにより、筒状部１Ｂとパイプ７の外周とは密着する。隙間８は、セグメント２、３がパイプ７を押さえる締めしろとして機能している。   As shown in FIG. 1B, the segments 2 and 3 of the split joint 1 are configured to press the outer periphery of the surface of the pipe 7 so that a gap 8 is formed at the joint when the segments 2 and 3 are joined. It is said that. By tightening the bolt 5 and the nut 6, the gap 8 is narrowed into the gap 8 ′, and both the segments 2 and 3 hold down the outer periphery of the pipe 7. The part 1B and the outer periphery of the pipe 7 are in close contact with each other. The gap 8 functions as an interference for the segments 2 and 3 to hold down the pipe 7.

本発明の特徴は、上記のようにパイプ７を接続した継手１の非貫通側の筒状部１Ｂの先端外周に、筒状部１Ｂの外径よりも小径のリング部材９を同筒状部１Ｂの外径を縮径して取り付け固定することである。図示例のリング部材９は、具体的には、切断されていない環状タイプであり、筒状部１Ｂより０．５ｍｍ程度小さい外径とされている。
リング部材９の取り付け方法としては、図１Ａ及び図２Ａ〜Ｃに示すように、予めパイプ７側にリング部材９を通した上で、継手１とパイプ７を上記のようにボルト５及びナット６により仮接合し（図２Ａ）、非貫通側の筒状部１Ｂの外周面へＵ字形状の治具１０を装着し、そのボルト１０ａのねじ込みにより同筒状部１Ｂを加圧して、継手１の上記隙間８’、８’を更に窄まらせてその外径を縮径し、そのうえで、小径のリング部材９を同筒状部１Ｂの先端外周へ移動させて嵌めることで、取り付け固定する（図２Ｂ）。A feature of the present invention is that a ring member 9 having a smaller diameter than the outer diameter of the cylindrical portion 1B is provided on the outer periphery of the cylindrical portion 1B on the non-penetrating side of the joint 1 to which the pipe 7 is connected as described above. The outer diameter of 1B is reduced and fixed. The ring member 9 in the illustrated example is specifically an annular type that is not cut, and has an outer diameter that is smaller by about 0.5 mm than the cylindrical portion 1B.
As shown in FIGS. 1A and 2A to 2C, the ring member 9 is attached by passing the ring member 9 in advance on the pipe 7 side, and then connecting the joint 1 and the pipe 7 to the bolt 5 and the nut 6 as described above. (FIG. 2A), a U-shaped jig 10 is attached to the outer peripheral surface of the non-penetrating cylindrical portion 1B, and the cylindrical portion 1B is pressurized by screwing in the bolt 10a. The above-mentioned gaps 8 'and 8' are further narrowed to reduce the outer diameter, and then the small-diameter ring member 9 is moved to the outer periphery of the distal end of the cylindrical portion 1B and fitted and fixed. (FIG. 2B).

その後、前記治具１０を筒状部１Ｂから取り外し、同筒状部１Ｂの前記ボルト５とナット６とで適切に本締めして継手１とパイプ７とを強固に接続する（図２Ｃ）。このようにして取り付けられた小径のリング部材９は、図３の完成状態に示すように、非貫通側の筒状部１Ｂのセグメント２、３及びパイプ７をしっかりと締め付けて固定するので同筒状部１Ｂの先端外周が浮き上がる変形を確実に抑止及び防止すると共に、高い接続強度を発揮する。   Thereafter, the jig 10 is removed from the cylindrical portion 1B and properly tightened with the bolt 5 and nut 6 of the cylindrical portion 1B to firmly connect the joint 1 and the pipe 7 (FIG. 2C). The small-diameter ring member 9 attached in this way, as shown in the completed state of FIG. 3, firmly fastens the segments 2 and 3 and the pipe 7 of the cylindrical portion 1B on the non-penetrating side to fix the same. It reliably inhibits and prevents the deformation of the outer periphery of the tip portion 1B from rising, and exhibits high connection strength.

図４には、継手１の筒状部１Ｂへ着脱可能な構成とされたリング部材１１を取り付けた状態を示した。このリング部材１１は、円周の一部を切断された半割形状とされ、両切断端部が略垂直に立ち上げられて連結部１１ａが形成されている。この連結部１１ａ、１１ａを広げて継手１の筒状部１Ｂの外周面へ嵌めた後、同連結部１１ａ、１１ａ同士を、その中央部に設けた貫通孔１１ｂ、１１ｂへボルト１２を通しナット１３で締め付けて接続することで同筒状部１Ｂへ取り付ける。このリング部材１１は、着脱可能であるので取り付け作業が容易であり、特に既存のパイプ構造物の各継手の筒状部へ解体することなく容易に取り付けることができる。本実施例においても、リング部材１１の取り付け作業は、治具１０を使用して筒状部１Ｂの外径を縮径させたうえで実施することが好ましい。   In FIG. 4, the state which attached the ring member 11 made into the structure which can be attached or detached to the cylindrical part 1B of the coupling 1 was shown. The ring member 11 has a half shape in which a part of the circumference is cut, and both cut end portions are raised substantially vertically to form a connecting portion 11a. After expanding the connecting portions 11a and 11a and fitting them on the outer peripheral surface of the tubular portion 1B of the joint 1, the nuts are passed through the through holes 11b and 11b provided in the center of the connecting portions 11a and 11a. Attach to the cylindrical part 1B by tightening at 13 and connecting. Since this ring member 11 is detachable, it can be easily attached, and in particular, can be easily attached without disassembling the tubular portion of each joint of an existing pipe structure. Also in the present embodiment, it is preferable to perform the attaching operation of the ring member 11 after reducing the outer diameter of the cylindrical portion 1B using the jig 10.

着脱可能なリング部材はこの限りではない。例えば、図５に示すリング部材１４は、やはり円周の一部を切断された半割形状とされているが、切断端部の一方に突起１４ａが形成され、他方に前記突起１４ａを嵌め掛ける孔１４ｂが形成されており、両者を嵌合することで上記筒状部１Ｂに取り付ける点が相違する。このリング部材１４は、ワンタッチで取り付けられるので作業効率が良く、実施例２のリング部材１１に比して出っ張りが少ないので意匠性に優れるなどの利点がある。   The detachable ring member is not limited to this. For example, the ring member 14 shown in FIG. 5 has a half shape in which a part of the circumference is cut, but a protrusion 14a is formed on one of the cut ends, and the protrusion 14a is fitted on the other. The hole 14b is formed and the point which attaches to the said cylindrical part 1B by fitting both differs. Since this ring member 14 can be attached with one touch, the work efficiency is good, and there are advantages such as excellent design because it has less protrusion than the ring member 11 of the second embodiment.

以上に本発明を図示した実施例と共に説明したが、もとより本発明は実施例に限定されるものではない。本発明の目的と要旨を逸脱しない範囲で、当業者が必要に応じて行う設計変更や応用変形を包含するものであることを念のため申し添える。例えば、図示例ではＴ型ジョイントに実施した例を示したが十字型ジョイントにも同様に実施できるし、貫通型の筒状部１Ａの上下両端部にリング部材９、１１、１４を取り付けて実施することも実施できる。   Although the present invention has been described above with the illustrated embodiment, the present invention is not limited to the embodiment. It should be noted that the present invention includes design changes and application modifications made by those skilled in the art as needed without departing from the scope and spirit of the present invention. For example, the example shown in the figure shows an example implemented for a T-shaped joint, but the present invention can be similarly applied to a cruciform joint, and ring members 9, 11, and 14 are attached to both upper and lower ends of a penetrating cylindrical portion 1A. Can also be implemented.

Ａは分割型継手とパイプとを接合した状態（リング部材を嵌める前）を示した斜視図である。Ｂは継手のセグメントにおける接合端部の隙間を示すＩ−Ｉ矢視断面図である。A is the perspective view which showed the state (before fitting a ring member) which joined the split-type coupling and the pipe. B is a cross-sectional view taken along the arrow I-I showing the gap at the joint end in the segment of the joint. Ａ〜Ｃは継手の筒状部へリング部材を取り付ける手順を示す図である。AC is a figure which shows the procedure which attaches a ring member to the cylindrical part of a joint. 継手へリング部材を取り付けた完成状態を示す斜視図である。It is a perspective view which shows the completion state which attached the ring member to the coupling. リング部材の異なる実施例を示した図である。It is the figure which showed the Example from which a ring member differs. リング部材の異なる実施例を示した図である。It is the figure which showed the Example from which a ring member differs. 従来の分割型継手とパイプとの接続構造を示す斜視図である。It is a perspective view which shows the connection structure of the conventional split type joint and a pipe. 従来技術の課題点を示す参考図である。It is a reference figure which shows the subject of a prior art.

符号の説明Explanation of symbols

１ 継手
１Ａ、１Ｂ 筒状部
２、３ セグメント
５ ボルト
６ ナット
７ パイプ
８、８’ 隙間
９ リング部材DESCRIPTION OF SYMBOLS 1 Joint 1A, 1B Cylindrical part 2, 3 Segment 5 Bolt 6 Nut 7 Pipe 8, 8 'Clearance 9 Ring member

Claims (2)

複数に分割された一組のセグメントをボルト及びナットで結合し、前記ボルト・ナットの締め付け力によってパイプを接続する分割型継手において、
前記パイプと接合された継手の筒状部の外周面に、少なくとも同筒状部の外径よりも小径のリング部材が筒状部の外径を縮径して取り付けられていることを特徴とする、分割型継手のパイプ接続強度増強構造。In a split joint that connects a set of segments divided into a plurality of bolts and nuts and connects the pipes by the tightening force of the bolts and nuts,
A ring member having a diameter smaller than at least the outer diameter of the cylindrical portion is attached to the outer peripheral surface of the cylindrical portion of the joint joined to the pipe with a reduced outer diameter of the cylindrical portion. A pipe joint strength enhancement structure for split joints リング部材は、円周の一部を切断された半割形状とされ、継手の筒状部の外周面へ嵌めてから、前記切断端部を接合して同筒状部へ取り付けられていることを特徴とする、請求項１に記載した分割型継手のパイプ接続強度増強構造。   The ring member has a halved shape in which a part of the circumference is cut, and is fitted to the cylindrical part by fitting the cut end part after fitting to the outer peripheral surface of the cylindrical part of the joint. The pipe connection strength enhancing structure for a split joint according to claim 1, wherein:
JP2010507140A 2008-04-09 2009-04-02 Structure for enhancing pipe connection strength of split joints Pending JPWO2009125559A1 (en)

Applications Claiming Priority (3)

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JP2008101090 2008-04-09
JP2008101090 2008-04-09
PCT/JP2009/001547 WO2009125559A1 (en) 2008-04-09 2009-04-02 Structure for increasing pipe connection strength of split joint

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CN102359285B (en) * 2011-11-02 2014-06-04 中际联合工业技术(北京)有限公司 Pipe joint device and guardrail
CN112204265A (en) * 2018-05-31 2021-01-08 株式会社湘南合成树脂制作所 Pipe material connecting piece and pipe material connecting method
EP3946812A1 (en) 2019-03-28 2022-02-09 Materialise NV Connectors
KR102183778B1 (en) * 2020-04-09 2020-11-27 우정훈 Pipe connection assembly and rack shelf unit assembly method using the same

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JPS6230007U (en) * 1985-08-09 1987-02-23
JPH02240406A (en) * 1989-03-10 1990-09-25 Showa Denko Kk Connection joint band for synthetic resin tube covered with uncombustible material
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JP3016200B2 (en) * 1998-07-24 2000-03-06 株式会社吉野工作所 Split type fitting
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