JP2880652B2 - Truss joint structure - Google Patents
Truss joint structureInfo
- Publication number
- JP2880652B2 JP2880652B2 JP19734094A JP19734094A JP2880652B2 JP 2880652 B2 JP2880652 B2 JP 2880652B2 JP 19734094 A JP19734094 A JP 19734094A JP 19734094 A JP19734094 A JP 19734094A JP 2880652 B2 JP2880652 B2 JP 2880652B2
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- sleeve
- joint
- truss
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Joining Of Building Structures In Genera (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、立体トラス等におい
て鋼管等からなる軸部材の相互の接合を行うトラスの接
合構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure of a truss for joining shaft members made of steel pipe or the like in a space truss or the like.
【０００２】[0002]
【従来の技術】従来、駐車場や工場，集会場等の建造物
において、屋根の骨組みとなる立体トラスを、パイプ製
の軸部材と、これら軸部材を相互に接合する球状の軸間
接合体とで構成したものがある。図１３はその接合部の
構造の具体例を示す。軸間接合体５１は球状に形成され
て、各方向に軸部材５２を接合する複数のねじ孔５３が
設けてある。軸部材５２は鋼管からなり、その端部には
ボルト５４を挿通させるエンド部材５５が溶接してあ
る。ボルト５４は、軸部の先端がねじ部５４ａ、軸部の
後半部がスプライン５４ｂとされ、スプライン５４ｂに
噛み合う内部形状のボルト締めスリーブ５６を外周に被
せてある。ボルト締めスリーブ５６内には、その内周面
の段差部５６ａで一端が支持され他端が薄ナット５８に
支持されるばね部材５７が組み込んである。2. Description of the Related Art Conventionally, in buildings such as parking lots, factories, halls, and the like, a three-dimensional truss serving as a framework of a roof is formed by a pipe-made shaft member and a spherical inter-axial joint body that connects these shaft members to each other. There is something composed of. FIG. 13 shows a specific example of the structure of the joint. The inter-axis joint body 51 is formed in a spherical shape, and is provided with a plurality of screw holes 53 for joining the shaft member 52 in each direction. The shaft member 52 is made of a steel pipe, and an end member 55 through which a bolt 54 is inserted is welded to an end thereof. The bolt 54 has a threaded portion 54a at the tip of the shaft portion and a spline 54b at the rear half of the shaft portion, and has an inner shape bolted sleeve 56 that meshes with the spline 54b and is covered on the outer periphery. A spring member 57, one end of which is supported by a step 56 a on the inner peripheral surface and the other end of which is supported by a thin nut 58, is incorporated in the bolted sleeve 56.
【０００３】接合作業は次のように行われる。まず、ボ
ルト５４をばね部材５７に抗して押し込めた状態で、ボ
ルト締めスリーブ５６と軸間接合体５１のねじ孔５３と
を整合させる。この状態でボルト締めスリーブ５６を回
転させると、スプライン５４ｂにおける係合のためにボ
ルト５４が回転する。ボルト５４は、ばね部材５７で軸
間接合体５１に向かう推進力が与えられているため、前
記の回転によりねじ孔５３の入口部に噛み込み、ボルト
締めスリーブ５６の回転を続けることにより締め付けら
れる。このようにして、軸部材５２と軸間接合体５１と
の接合が行われる。[0003] The joining operation is performed as follows. First, with the bolt 54 pushed in against the spring member 57, the bolted sleeve 56 and the screw hole 53 of the inter-axis joint body 51 are aligned. When the bolted sleeve 56 is rotated in this state, the bolt 54 is rotated due to engagement with the spline 54b. The bolt 54 is given a propulsive force toward the inter-axis joint body 51 by the spring member 57, so that the bolt 54 bites into the inlet of the screw hole 53 by the above rotation, and is tightened by continuing the rotation of the bolt tightening sleeve 56. In this way, the joint between the shaft member 52 and the inter-axis joint body 51 is performed.
【０００４】[0004]
【発明が解決しようとする課題】しかし、図１４の構成
によると、ボルト５４の頭５４ｃがエンド部材５５の端
面に当接する位置までボルト５４が軸間接合体５１のね
じ孔５３にねじ込まれたかどうかを、目視によっては確
認できない。このため、ボルト締めスリーブ５６を回転
させるときに手に伝わる抵抗力が急増すると、ボルト締
めが完了したものと見なすようにしており、手の感触の
みに頼っているため、ボルト締めの完了を正しく確認で
きないという問題点があった。例えば、軸間接合体５１
間の距離が製作誤差等により設計寸法よりも小さくなっ
ているときは、ボルト締めスリーブ５６を回して締め付
ける際に、始めからある程度の軸力がボルト締めスリー
ブ５６に入っており、どの時点でエンド部材５５とボル
ト頭５４ｃとが接したかを確認することが非常に難しく
なる。However, according to the configuration shown in FIG. 14, whether the bolt 54 is screwed into the screw hole 53 of the inter-axis joint body 51 up to the position where the head 54c of the bolt 54 contacts the end face of the end member 55 is determined. Cannot be confirmed visually. For this reason, when the resistance transmitted to the hand when the bolted sleeve 56 is rotated suddenly increases, it is assumed that the bolting has been completed, and only the feel of the hand is used. There was a problem that it could not be confirmed. For example, the interaxial joint 51
If the distance between them is smaller than the design dimensions due to manufacturing errors, etc., when turning the bolted sleeve 56 to tighten it, a certain amount of axial force has entered the bolted sleeve 56 from the beginning, and at which point the end It is very difficult to check whether the member 55 and the bolt head 54c are in contact.
【０００５】この発明は、ボルト締めの完了を目視等に
より正確に確認できるトラスの接合構造を提供すること
である。SUMMARY OF THE INVENTION It is an object of the present invention to provide a truss joining structure capable of accurately confirming completion of bolting by visual inspection or the like.
【０００６】[0006]
【課題を解決するための手段】この発明は、軸部材接合
用のねじ孔を有する軸間接合体と、軸部材とを接合する
次の構成のトラスの接合構造において、締め付け確認用
の確認ピンを設けたものである。軸部材にはボルト挿通
孔を有するエンド部材を設ける。このエンド部材の前記
ボルト挿通孔に挿通されて軸部中間に非円形断面部を有
するボルトを設ける。このボルトに、両端が前記エンド
部材と前記軸間接合体とに当接し内面が前記非円形断面
部に回転伝達可能に係合するボルト締めスリーブを被せ
る。このボルト締めスリーブおよび前記エンド部材の少
なくとも一方に径方向の溝または孔を設け、この溝また
は孔に確認ピンを挿入する。確認ピンは、その内端が前
記ボルトの所定締め込み深さでこのボルトの所定部に押
されて破断するものとする。SUMMARY OF THE INVENTION The present invention relates to an inter-shaft joint having a screw hole for joining a shaft member, and a truss joining structure having the following structure for joining a shaft member. It is provided. An end member having a bolt insertion hole is provided on the shaft member. A bolt which is inserted through the bolt insertion hole of the end member and has a non-circular cross section in the middle of the shaft is provided. The bolt is covered with a bolt fastening sleeve having both ends abutting on the end member and the inter-axis joint body and having an inner surface engaged with the non-circular cross-section so as to be able to transmit rotation. A radial groove or hole is provided in at least one of the bolted sleeve and the end member, and a confirmation pin is inserted into the groove or hole. The inner end of the check pin is pressed by a predetermined portion of the bolt at a predetermined tightening depth of the bolt and breaks.
【０００７】上記構成において、前記ボルトの外周面
に、軸方向に延びる確認ピン挿入溝を設け、前記確認ピ
ンを、前記確認ピン挿入溝内に嵌まる横片部と、前記ボ
ルト締めスリーブの溝または孔に嵌まる縦片部とでなる
Ｌ字状に形成してもよい。[0007] In the above structure, a confirmation pin insertion groove extending in the axial direction is provided on the outer peripheral surface of the bolt, and the confirmation pin is provided with a lateral piece fitted into the confirmation pin insertion groove, and a groove of the bolt tightening sleeve. Alternatively, it may be formed in an L-shape including a vertical piece fitted into the hole.
【０００８】[0008]
【作用】この構成よると、ボルトの先端を軸間接合体の
ねじ孔部分に当て、ボルト締めスリーブを所定方向に回
転させると、前記ボルトは、ボルト締めスリーブと共に
回転しながらボルト締めスリーブから突出し、軸間接合
体のねじ孔にねじ込まれる。ボルトの締め込みが完了す
ると、確認ピンの内端がボルトの所定部に押されて確認
ピンが破断する。その破断によりボルトの締め込み完了
を確認できる。破断の確認は、確認ピンの破断片が抜け
出ることで目視で行え、また材質等によっては破断時に
生じる音によっても確認できる。確認ピンをＬ字状に形
成してボルト外周面の確認ピン挿入溝に挿入する構成と
した場合は、破断までに確認ピンが不用意に抜けること
がない。According to this construction, when the tip of the bolt is applied to the screw hole of the inter-axial joint and the bolt tightening sleeve is rotated in a predetermined direction, the bolt protrudes from the bolt tightening sleeve while rotating together with the bolt tightening sleeve. It is screwed into the screw hole of the joint between shafts. When the tightening of the bolt is completed, the inner end of the check pin is pushed by a predetermined portion of the bolt, and the check pin is broken. The completion of tightening of the bolt can be confirmed by the fracture. The break can be confirmed visually by the broken pieces of the check pin coming out, and can also be confirmed by the sound generated at the time of break depending on the material or the like. When the check pin is formed in an L-shape and inserted into the check pin insertion groove on the outer peripheral surface of the bolt, the check pin is not accidentally pulled out before breaking.
【０００９】[0009]
【実施例】この発明の第１の実施例を図１ないし図６に
基づいて説明する。図４（Ａ）〜（Ｃ）は、各々このト
ラスの接合構造を適用した立体トラスの平面図、側面図
および正面図である。各軸部材１は、四角錐の稜線に位
置するように配置され、各四角錐の角部において、軸間
接合体２で相互に接合される。図５に示すように、軸間
接合体２は球状に形成され、各方向の軸部材１を接合す
る複数のねじ孔３が設けてある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. FIGS. 4A to 4C are a plan view, a side view, and a front view of a space truss to which the joint structure of the truss is applied, respectively. Each shaft member 1 is arranged so as to be located on the ridge line of the quadrangular pyramid, and is joined to each other by the interaxial joint 2 at the corner of each quadrangular pyramid. As shown in FIG. 5, the inter-shaft joint 2 is formed in a spherical shape, and has a plurality of screw holes 3 for joining the shaft members 1 in each direction.
【００１０】図１は軸部材１と軸間接合体２との接合構
造を示す。軸部材１は鋼管からなり、その端部にエンド
部材４が溶接５で接合される。エンド部材４は、軸管接
合体２のねじ孔３に螺着するボルト６を挿通させるボル
ト挿通孔４ａを有し、このボルト挿通孔４ａに挿通させ
たボルト６の頭部６ａが、ボルト締め完了状態でエンド
部材４の内側端面に当接する。ボルト６はその軸部の中
間にスプラインからなる非円形断面部６ｂを有し、先端
がねじ部６ｃに形成されている。FIG. 1 shows a joint structure between a shaft member 1 and a joint 2 between shafts. The shaft member 1 is made of a steel pipe, and an end member 4 is joined to the end of the shaft member by welding 5. The end member 4 has a bolt insertion hole 4a through which a bolt 6 screwed into the screw hole 3 of the shaft tube assembly 2 is inserted. The head 6a of the bolt 6 inserted through the bolt insertion hole 4a is bolted. In the completed state, it comes into contact with the inner end surface of the end member 4. The bolt 6 has a non-circular cross-section 6b made of a spline in the middle of its shaft, and the tip is formed on the screw 6c.
【００１１】ボルト６の外周には、エンド部材４と軸間
接合体２との間に挟み込まれるボルト締めスリーブ９が
被せられる。ボルト締めスリーブ９は、内周面にボルト
６の非円形断面部６ｂに係合するスプライン溝からなる
回転係合部９ａと、これよりもボルト先端側に位置する
大径内周面部９ｂとが段差部９ｃを介して形成されてい
る。ボルト締めスリーブ９の外周面は六角形状断面等に
形成してある。A bolt fastening sleeve 9 sandwiched between the end member 4 and the inter-axial joint 2 is put on the outer periphery of the bolt 6. The bolt fastening sleeve 9 has a rotating engagement portion 9a formed of a spline groove that engages with the non-circular cross-section 6b of the bolt 6 on the inner peripheral surface, and a large-diameter inner peripheral surface portion 9b located on the tip end side of the bolt. It is formed via the step 9c. The outer peripheral surface of the bolted sleeve 9 is formed in a hexagonal cross section or the like.
【００１２】ボルト締めスリーブ９内には圧縮コイルば
ねからなるばね部材７が差し込まれる。ばね部材７のボ
ルト６のねじ部６ｃ側は、ボルト６に予め係合されてい
る薄ナット８に当接されており、ばね部材７のボルト６
の頭部６ａ側はボルト締めスリーブ９の段差部９ｃで係
合している。A spring member 7 composed of a compression coil spring is inserted into the bolting sleeve 9. The screw portion 6c side of the bolt 6 of the spring member 7 is in contact with a thin nut 8 previously engaged with the bolt 6, and the bolt 6 of the spring member 7
Is engaged with a stepped portion 9c of the bolted sleeve 9.
【００１３】ボルト締めスリーブ９のエンド部材４側の
端面には、その径方向に沿って前記ボルト６の締め込み
完了の確認ピン１０を挿入する確認ピン挿入溝９ｄが形
成してあり、またボルト６の非円形断面部６ｂの外周面
に、軸方向に延びる確認ピン挿入溝６ｄが形成されてい
る。確認ピン１０は、ボルト締めスリーブ９の確認ピン
挿入溝９ｄに嵌まる縦片部１０ａと、ボルト６の確認ピ
ン挿入溝６ｄ内に嵌まる横片部１０ｂとからなるＬ字状
に形成したものであり、金属製または樹脂製のものとさ
れる。ボルト６の確認ピン挿入溝６ｄのボルト頭側端面
６ｄａは、確認ピン１０を押圧して破断する所定部とな
る部分であり、エンド部材４の厚みよりもボルト頭６ａ
から若干遠い位置としてある。A check pin insertion groove 9d for inserting a check pin 10 for completing the tightening of the bolt 6 is formed in the end surface of the bolt tightening sleeve 9 on the end member 4 side. A check pin insertion groove 6d extending in the axial direction is formed on the outer peripheral surface of the non-circular cross-section 6b of FIG. The confirmation pin 10 is formed in an L-shape including a vertical piece 10a fitted in the confirmation pin insertion groove 9d of the bolt fastening sleeve 9 and a horizontal piece 10b fitted in the confirmation pin insertion groove 6d of the bolt 6. And made of metal or resin. The end face 6 da of the bolt 6 on the bolt head side of the check pin insertion groove 6 d is a portion serving as a predetermined portion that presses the check pin 10 and breaks, and the bolt head 6 a is thicker than the end member 4.
It is located slightly far from
【００１４】前記の各接合用の部品４〜１０は、次のよ
うに組み立てられてセット化される。先ず、図３のよう
にボルト６をエンド部材４に挿通させた状態で、ボルト
６の確認ピン挿入溝６ｄに確認ピン１０の横片部１０ｂ
を嵌め込む。ついで、ボルト６の確認ピン挿入溝６ｄと
ボルト締めスリーブ９の確認ピン挿入溝９ｄとが整合す
るように、ボルト６の非円形断面部６ｂにボルト締めス
リーブ９を嵌め込み、ボルト締めスリーブ９の確認ピン
挿入溝９ｄに確認ピン１０の縦片部１０ａを嵌め合わせ
る。この状態で、ボルト６にその先端側からばね部材７
を差し入れ、ばね部材７のボルト６のねじ部６ｃ側か
ら、薄ナット８を同ねじ部６ｃの所定位置に係止させ、
ばね部材７のボルト６のボルト頭部６ａ側をボルト締め
スリーブ９内の段差部９ｃに当接させる。。The above-mentioned joining parts 4 to 10 are assembled and set as follows. First, as shown in FIG. 3, with the bolt 6 inserted through the end member 4, the lateral piece 10b of the confirmation pin 10 is inserted into the confirmation pin insertion groove 6d of the bolt 6.
Fit. Then, the bolt tightening sleeve 9 is fitted into the non-circular cross section 6b of the bolt 6 so that the check pin insertion groove 6d of the bolt 6 and the check pin insertion groove 9d of the bolt tightening sleeve 9 are aligned, and the bolt tightening sleeve 9 is checked. The vertical piece 10a of the check pin 10 is fitted into the pin insertion groove 9d. In this state, the spring member 7 is attached to the bolt 6 from the tip side.
From the screw member 6c side of the bolt 6 of the spring member 7, the thin nut 8 is locked at a predetermined position of the screw member 6c,
The bolt head 6 a side of the bolt 6 of the spring member 7 is brought into contact with a step 9 c in the bolting sleeve 9. .
【００１５】つぎに、接合作業を説明する。接続前の状
態において、ボルト６は、ボルト締めスリーブ９の段差
部９ｃを反力点とするばね部材７の復元力によりボルト
締めスリーブ９から突出させられる。この突出したボル
ト６を、ばね部材７に抗して押し込め、図２のようにボ
ルト６の先端を軸間接合体２のねじ孔３に合わせる。こ
れにより、ボルト６は先端がばね部材７の付勢力でねじ
孔３に押し付けられた状態となり、ねじ孔３に対する初
期推進力が得られる。Next, the joining operation will be described. In the state before connection, the bolt 6 is made to protrude from the bolt tightening sleeve 9 by the restoring force of the spring member 7 having the step 9c of the bolt tightening sleeve 9 as a reaction point. The projecting bolt 6 is pushed in against the spring member 7, and the tip of the bolt 6 is aligned with the screw hole 3 of the inter-axial joint 2 as shown in FIG. As a result, the bolt 6 has its tip pressed against the screw hole 3 by the urging force of the spring member 7, and an initial propulsion force for the screw hole 3 is obtained.
【００１６】この状態で、ボルト締めスリーブ９を所定
方向に回転させると、ボルト６は、図６（Ａ）の状態か
らボルト締めスリーブ９と共に回転しながらボルト締め
スリーブ９から次第に突出し、図６（Ｂ）のように軸間
接合体２のねじ孔３にねじ込まれる。このようにねじ込
みを行い、図６（Ｃ）のようにボルト６の頭部６ａがエ
ンド部材４の内側端面に当接して、ボルト６がエンド部
材４と軸間接合体２との間で引っ張り状態になるまで締
め込まれると、接合が完了する。この締め込み完了状態
になると、ボルト６の確認ピン挿入溝６ｄのボルト頭側
端面６ｄａが確認ピン１０の横片部１０ｂに押し付けら
れ、その押し付け力で横片部１０ｂが縦片部１０ａから
破断する。この破断により、確認ピン１０の縦片部１０
ａは、ボルト締めスリーブ９の確認ピン挿入溝９ｄから
抜き出し可能となる。このことから、ボルト６の締め込
みが完了したことを目視で確認できる。When the bolt fastening sleeve 9 is rotated in a predetermined direction in this state, the bolt 6 gradually projects from the bolt fastening sleeve 9 while rotating together with the bolt fastening sleeve 9 from the state of FIG. It is screwed into the screw hole 3 of the inter-shaft joint 2 as shown in B). Screwing is performed in this manner, and as shown in FIG. 6C, the head 6a of the bolt 6 comes into contact with the inner end surface of the end member 4, and the bolt 6 is pulled between the end member 4 and the inter-axis joint body 2. After joining, the joining is completed. When the tightening is completed, the bolt head side end face 6da of the check pin insertion groove 6d of the bolt 6 is pressed against the horizontal piece 10b of the check pin 10, and the pressing force breaks the horizontal piece 10b from the vertical piece 10a. I do. Due to this break, the vertical piece 10 of the confirmation pin 10 is
a can be extracted from the check pin insertion groove 9d of the bolted sleeve 9. From this, it can be visually confirmed that the tightening of the bolt 6 has been completed.
【００１７】なお、この実施例では、確認ピン１０をそ
の横片部１０ｂがボルト先端側に向くようにボルト６の
確認ピン挿入溝６ｄに嵌め込むようにしたが、図７のよ
うにボルト頭部６ａ側に確認ピン１０の横片部１０ｂを
向けるようにしてもよい。In this embodiment, the confirmation pin 10 is fitted into the confirmation pin insertion groove 6d of the bolt 6 so that the lateral piece 10b faces the tip of the bolt. However, as shown in FIG. The horizontal piece 10b of the check pin 10 may be directed to the part 6a.
【００１８】また、この例では、確認ピン１０をＬ字状
としたが、確認ピン１０は直棒状として、ボルト締めス
リーブ９の径方向に貫通させた孔からボルト６の確認ピ
ン挿入溝６ｄまで確認ピン１０を挿入させるものとし、
あるいは直棒の内端に拡径した抜け止め部を有するピン
としても良い。In this example, the confirmation pin 10 is L-shaped. However, the confirmation pin 10 is formed in a straight rod shape and extends from the hole penetrated in the radial direction of the bolt fastening sleeve 9 to the confirmation pin insertion groove 6 d of the bolt 6. Confirmation pin 10 shall be inserted,
Alternatively, it may be a pin having a retaining portion with an enlarged diameter at the inner end of the straight rod.
【００１９】図８は、この発明の第２の実施例を示す。
この実施例のトラスの接合構造は、第１の実施例におけ
るボルト締めスリーブ９の確認ピン挿入溝９ｄと、ボル
ト６の確認ピン挿入溝６ｄに代えて、エンド部材４の外
側端面にその径方向に沿って確認ピン１０の縦片部１０
ａを挿入する確認ピン挿入溝４ｂを形成し、かつボルト
挿通孔４ａの内周面にその軸方向に沿って確認ピン１０
の横片部１０ｂを挿入する確認ピン挿入溝４ｃを形成し
たものである。これに伴い、ボルト締めスリーブ９のボ
ルト頭側の端面には、確認ピン１０の縦片部１０ａから
破断した横片部１０ｂの逃がし凹部９ｅを形成してあ
る。なお、確認ピン１０の横片部１０ｂはエンド部材４
の確認ピン挿入溝４ｂに嵌め込んだ状態で、エンド部材
４の内側端面から内側に若干突出する長さに設定され
る。この場合、ボルト頭６ａが確認ピン１０の破断用の
所定部となる。その他の構成は第１の実施例と同様であ
る。FIG. 8 shows a second embodiment of the present invention.
The joint structure of the truss of this embodiment is different from that of the first embodiment in that the confirmation pin insertion groove 9d of the bolted sleeve 9 and the confirmation pin insertion groove 6d of the bolt 6 are provided on the outer end face of the end member 4 in the radial direction. The vertical piece 10 of the check pin 10 along
a, and a check pin 10b is formed along the axial direction on the inner peripheral surface of the bolt insertion hole 4a.
A check pin insertion groove 4c into which the horizontal piece 10b is inserted is formed. Along with this, a relief recess 9e is formed in the end face of the bolt fastening sleeve 9 on the bolt head side, for the horizontal piece 10b broken from the vertical piece 10a of the check pin 10 to escape. The side piece 10b of the check pin 10 is the end member 4
Is set to a length slightly protruding inward from the inner end face of the end member 4 in a state of being fitted into the check pin insertion groove 4b. In this case, the bolt head 6a becomes a predetermined portion for breaking the confirmation pin 10. Other configurations are the same as those of the first embodiment.
【００２０】この実施例では、図８（Ａ）のように確認
ピン１０の縦片部１０ａをエンド部材４の外側端面の確
認ピン挿入溝４ｂに、確認ピン１０の横片部１０ｂをエ
ンド部材４の内周面の確認ピン挿入溝４ｃにそれぞれ嵌
め込んだ状態で、ボルト締めスリーブ９を回転させて第
１の実施例と同様にボルト６を軸間接合体２のねじ孔３
にねじ込む。ボルト６の締め込みが完了すると、図８
（Ｂ）のように確認ピン１０の横片部１０ｂの内端がボ
ルト頭部６ａに押されて横片部１０ｂが縦片部１０ａか
ら破断する。この破断により、確認ピン１０の縦片部１
０ａは、エンド部材４の確認ピン挿入溝４ｂから抜き出
し可能となる。このことから、ボルト６の締め込みが完
了したことを確認できる。In this embodiment, as shown in FIG. 8A, the vertical piece 10a of the check pin 10 is inserted into the check pin insertion groove 4b on the outer end face of the end member 4, and the horizontal piece 10b of the check pin 10 is inserted into the end member. The bolt tightening sleeve 9 is rotated with the bolt 6 inserted into the check pin insertion groove 4c on the inner peripheral surface of the inner peripheral surface 4 and the bolt 6 is screwed into the screw hole 3 of the inter-axial joint body 2 as in the first embodiment.
Screwed in. When the tightening of the bolt 6 is completed, FIG.
As shown in (B), the inner end of the horizontal piece 10b of the check pin 10 is pushed by the bolt head 6a, and the horizontal piece 10b is broken from the vertical piece 10a. Due to this break, the vertical piece 1 of the confirmation pin 10
0a can be extracted from the confirmation pin insertion groove 4b of the end member 4. From this, it can be confirmed that the tightening of the bolt 6 has been completed.
【００２１】図９は、この発明の第３の実施例を示す。
この実施例のトラスの接合構造は、円錐台状のばね部材
７の大径端を、内スリーブ１１を介してボルト締めスリ
ーブ９の先端に固定してある。内スリーブ１１は、ばね
部材７の小径端をボルト６のねじ部６ｃに螺合状態に係
止させた後、ボルト締めスリーブ９に溶接等で固定され
る。また、エンド部材４は内外二重のリング状部材で形
成し、両リング状部材をねじ部４ｄで螺合させてある。
確認ピン１０は、第１の実施例と同様に取付けてある。
その他の構成および作用も第１の実施例と同様である。FIG. 9 shows a third embodiment of the present invention.
In the joint structure of the truss of this embodiment, the large diameter end of the frusto-conical spring member 7 is fixed to the tip of the bolted sleeve 9 via the inner sleeve 11. The inner sleeve 11 is fixed to the bolted sleeve 9 by welding or the like after engaging the small-diameter end of the spring member 7 with the screw portion 6c of the bolt 6 in a threaded state. The end member 4 is formed of a double inner and outer ring-shaped member, and both ring-shaped members are screwed together with a screw portion 4d.
The confirmation pin 10 is attached in the same manner as in the first embodiment.
Other configurations and operations are the same as those of the first embodiment.
【００２２】図１０は、この発明の第４の実施例を示
す。この実施例のトラスの接合構造は、ボルト締めスリ
ーブ９内に遊嵌させた圧縮コイルばねからなるばね部材
７の両端を、ボルト締めスリーブ９の段差部９ｃと、ボ
ルト６の先端ねじ部６ｃに螺合したばね受けナット１２
の間に介在させてある。この接合構造に、第１の実施例
と同様に確認ピン１０を取付けたものである。その他の
構成および作用は第１の実施例と同様である。FIG. 10 shows a fourth embodiment of the present invention. The joint structure of the truss of this embodiment is such that both ends of a spring member 7 composed of a compression coil spring loosely fitted in a bolted sleeve 9 are connected to a step 9c of the bolted sleeve 9 and a tip screw portion 6c of the bolt 6. Threaded spring receiving nut 12
It is interposed between. A check pin 10 is attached to this joint structure as in the first embodiment. Other configurations and operations are the same as those of the first embodiment.
【００２３】図１１は、この発明の第５の実施例を示
す。この実施例のトラスの接合構造は、ボルト挿通孔１
３ａを有するアンカースリーブ１３をエンド部材４に螺
着し、アンカースリーブ１３の後部のばね止め１４でば
ね部材７を支持する構成としてある。この接合構造に、
第１の実施例と同様に確認ピン１０を取付けたものであ
る。その他の構成および作用は第１の実施例と同様であ
る。FIG. 11 shows a fifth embodiment of the present invention. The joint structure of the truss of this embodiment has a bolt insertion hole 1
An anchor sleeve 13 having 3 a is screwed to the end member 4, and the spring member 7 is supported by a spring stopper 14 at the rear of the anchor sleeve 13. In this joint structure,
The confirmation pin 10 is attached similarly to the first embodiment. Other configurations and operations are the same as those of the first embodiment.
【００２４】図１２は、この発明の第６の実施例を示
す。この実施例のトラスの接合構造は、エンド部材４に
形成したねじ孔４ｄに頭部付きボルト６を遊嵌させ、前
記エンド部材４のねじ孔４ｄに螺合する雄ねじ部１５ａ
を有する締付けナット１５をボルト６の先端ねじ部６ｃ
に螺合させてある。この接合構造に、第２の実施例と同
様に確認ピン１０を取付けたものである。前記締付けナ
ット１５は、別にボルト６に螺合させたロックナット１
６によってボルト６に固定される。この実施例では、締
付けナット１５が第１の実施例におけるボルト６の非円
形断面部６ｂを兼ね、ボルト締めスリーブ９を回転させ
ると、エンド部材４のねじ孔４ｄと締付けナット１５の
雄ねじ部１５ａとの螺合による推進作用で、ねじ部６ｃ
が軸間接合体２のねじ孔３にねじ込まれるまでボルト６
が推進される。その他の構成および作用は第２の実施例
と同様である。なお、ボルト頭部６ａの代わりにナット
をボルト６に螺着してもよい。FIG. 12 shows a sixth embodiment of the present invention. The joint structure of the truss according to this embodiment has a male screw portion 15a in which a head bolt 6 is loosely fitted into a screw hole 4d formed in the end member 4 and screwed into the screw hole 4d of the end member 4.
The tightening nut 15 having the screw
Screwed. The confirmation pin 10 is attached to this joint structure as in the second embodiment. The tightening nut 15 is a lock nut 1 separately screwed to the bolt 6.
It is fixed to the bolt 6 by 6. In this embodiment, the fastening nut 15 also serves as the non-circular cross section 6b of the bolt 6 in the first embodiment, and when the bolt fastening sleeve 9 is rotated, the screw hole 4d of the end member 4 and the male screw portion 15a of the fastening nut 15 are formed. Screw portion 6c
Until the screw is screwed into the screw hole 3 of the inter-axial joint 2.
Is promoted. Other configurations and operations are the same as those of the second embodiment. Note that a nut may be screwed to the bolt 6 instead of the bolt head 6a.
【００２５】[0025]
【発明の効果】この発明のトラスの接合構造は、軸部材
に設けたエンド部材のボルト挿通孔に、軸部中間に非円
形断面部を有するボルトを挿通させ、このボルトに、両
端が前記エンド部材と前記軸間接合体とに当接し内面が
前記非円形断面部に回転伝達可能に係合するボルト締め
スリーブを被せた接合構造において、ボルト締めスリー
ブおよびエンド部材の少なくとも一方に径方向の溝また
は孔を設け、この溝または孔に確認ピンを挿入し、その
内端が前記ボルトの所定締め込み深さでこのボルトに押
されて破断する構成としたため、確認ピンの破断より、
ボルトの締め込み完了を目視等で正確に確認できる。確
認ピンをＬ字状に形成してボルト外周面の確認ピン挿入
溝に挿入する構成とした場合は、破断までに確認ピンが
不用意に抜けることがない。According to the truss joint structure of the present invention, a bolt having a non-circular cross section in the middle of a shaft portion is inserted into a bolt insertion hole of an end member provided in the shaft member. In a joint structure in which a member and the bolt-tightening sleeve that abuts on the inter-shaft joint and the inner surface of which is rotatably engaged with the non-circular cross-sectional portion is covered, at least one of the bolting sleeve and the end member has a radial groove or A hole is provided, and a confirmation pin is inserted into this groove or hole, and the inner end thereof is pressed by the bolt at a predetermined tightening depth of the bolt and is broken.
Completion of bolt tightening can be accurately confirmed visually or the like. When the check pin is formed in an L-shape and inserted into the check pin insertion groove on the outer peripheral surface of the bolt, the check pin is not accidentally pulled out before breaking.
【図１】この発明の第１の実施例の接合状態を示す破断
側面図である。FIG. 1 is a cutaway side view showing a joined state of a first embodiment of the present invention.
【図２】その接合前の状態を示す破断側面図である。FIG. 2 is a cutaway side view showing a state before joining.
【図３】その分解状態の側面図である。FIG. 3 is a side view of the disassembled state.
【図４】（Ａ）〜（Ｃ）は各々その接合状態を適用した
トラスの平面図、側面図および正面図である。FIGS. 4A to 4C are a plan view, a side view, and a front view of a truss to which the joined state is applied, respectively.
【図５】その部分拡大正面図である。FIG. 5 is a partially enlarged front view thereof.
【図６】その接合動作を示す説明図である。FIG. 6 is an explanatory diagram showing the joining operation.
【図７】その変形例を示す破断側面図である。FIG. 7 is a cutaway side view showing a modified example thereof.
【図８】（Ａ），（Ｂ）はそれぞれ第２の実施例の接合
前の状態および接合状態を示す破断側面図である。FIGS. 8A and 8B are cutaway side views showing a state before joining and a joined state of the second embodiment, respectively.
【図９】第３の実施例を示す破断側面図である。FIG. 9 is a cutaway side view showing a third embodiment.
【図１０】第４の実施例を示す破断側面図である。FIG. 10 is a cutaway side view showing a fourth embodiment.
【図１１】第５の実施例を示す破断側面図である。FIG. 11 is a cutaway side view showing a fifth embodiment.
【図１２】第６の実施例を示す破断側面図である。FIG. 12 is a cutaway side view showing a sixth embodiment.
【図１３】従来例を示す破断側面図である。FIG. 13 is a cutaway side view showing a conventional example.
１…軸部材、２…軸間接合体、３…ねじ孔、４…エンド
部材、４ａ…ボルト挿通孔、６…ボルト、６ｂ…非円形
断面部、６ｄ…確認ピン挿入溝、９…ボルト締めスリー
ブ、９ｄ…確認ピン挿入溝、１０…確認ピン、１０ａ…
縦片部、１０ｂ…横片部DESCRIPTION OF SYMBOLS 1 ... Shaft member, 2 ... Inter-axis joint body, 3 ... Screw hole, 4 ... End member, 4a ... Bolt insertion hole, 6 ... Bolt, 6b ... Non-circular cross section, 6d ... Confirmation pin insertion groove, 9 ... Bolt tightening sleeve , 9d ... confirmation pin insertion groove, 10 ... confirmation pin, 10a ...
Vertical part, 10b ... horizontal part
Claims (2)
体と、軸部材に設けられたボルト挿通孔を有するエンド
部材と、このエンド部材の前記ボルト挿通孔に挿通され
て軸部中間に非円形断面部を有するボルトと、このボル
トに被されて両端が前記エンド部材と軸間接合体とに当
接し内面が前記非円形断面部に回転伝達可能に係合する
ボルト締めスリーブと、このボルト締めスリーブおよび
前記エンド部材の少なくとも一方に設けた径方向の溝ま
たは孔に挿入され内端が前記ボルトの所定締め込み深さ
でこのボルトの所定部に押されて破断する確認ピンとを
備えたトラスの接合構造。1. An inter-shaft joint having a screw hole for joining a shaft member, an end member having a bolt insertion hole provided in the shaft member, and being inserted into the bolt insertion hole of the end member so as to be in the middle of the shaft portion. A bolt having a non-circular cross section, a bolt fastening sleeve covered by the bolt, both ends of which abut against the end member and the inter-axial joint, and an inner surface of which engages with the non-circular cross section so as to be able to transmit rotation; A truss comprising a fastening sleeve and a confirmation pin which is inserted into a radial groove or hole provided in at least one of the end members and whose inner end is pushed by a predetermined portion of the bolt at a predetermined tightening depth of the bolt and breaks. Joint structure.
認ピン挿入溝を設け、前記確認ピンを、前記確認ピン挿
入溝内に嵌まる横片部と、前記ボルト締めスリーブの前
記溝または孔に嵌まる縦片部とでなるＬ字状に形成した
請求項１記載のトラスの接合構造。2. A confirmation pin insertion groove extending in an axial direction is provided on an outer peripheral surface of the bolt, and the confirmation pin is inserted into the confirmation pin insertion groove in a lateral piece portion, and the groove or hole of the bolt tightening sleeve. The truss joining structure according to claim 1, wherein the joining structure is formed in an L-shape comprising a vertical piece fitted into the truss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19734094A JP2880652B2 (en) | 1994-07-29 | 1994-07-29 | Truss joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19734094A JP2880652B2 (en) | 1994-07-29 | 1994-07-29 | Truss joint structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0841984A JPH0841984A (en) | 1996-02-13 |
| JP2880652B2 true JP2880652B2 (en) | 1999-04-12 |
Family
ID=16372849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19734094A Expired - Fee Related JP2880652B2 (en) | 1994-07-29 | 1994-07-29 | Truss joint structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2880652B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691629B (en) * | 2020-06-22 | 2021-07-13 | 浙江正嘉建设有限公司 | Mounting structure for building convex type decoration body and using method thereof |
-
1994
- 1994-07-29 JP JP19734094A patent/JP2880652B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0841984A (en) | 1996-02-13 |
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