JP5873761B2 - Method and mounting structure for mounting the handrail to the column - Google Patents
Method and mounting structure for mounting the handrail to the column Download PDFInfo
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- JP5873761B2 JP5873761B2 JP2012121645A JP2012121645A JP5873761B2 JP 5873761 B2 JP5873761 B2 JP 5873761B2 JP 2012121645 A JP2012121645 A JP 2012121645A JP 2012121645 A JP2012121645 A JP 2012121645A JP 5873761 B2 JP5873761 B2 JP 5873761B2
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Description
本発明は、支柱と、支柱間に架設される縦格子より構成され、縦格子は上下一対の横梁と、上下の横梁を定間隔で連結する縦桟よりなり、橋梁や高架橋に設置され、車両の路外への逸脱防止のための車両防護柵として、或いは歩行者のガードのために用いられる高欄において、前記横梁を支柱に取付ける取付方法及び取付構造に関する。 The present invention is composed of a column and a vertical lattice installed between the columns, and the vertical lattice is composed of a pair of upper and lower horizontal beams and a vertical beam that connects the upper and lower horizontal beams at regular intervals, and is installed on a bridge or viaduct. It is related with the attachment method and attachment structure which attach the said cross beam to a support | pillar in the handrail used as a vehicle guarding fence for the deviation prevention to the outside of a road, or for the guard of a pedestrian.
図１は、高欄の一例を示すもので、地中に埋設されるアンカー１を備えた支柱２と、支柱間に架設される縦格子３と、パイプよりなり、支柱２を上端において連結する主横梁４より構成され、縦格子３は上下一対のパイプよりなる横梁５と、横方向に一定間隔で上下の横梁５を連結する縦桟６よりなっている。 FIG. 1 shows an example of a balustrade, which is composed of a column 2 having an anchor 1 embedded in the ground, a vertical lattice 3 laid between the columns, and a pipe that connects the column 2 at the upper end. The vertical lattice 3 is composed of a horizontal beam 5 composed of a pair of upper and lower pipes, and a vertical beam 6 that connects the upper and lower horizontal beams 5 at regular intervals in the horizontal direction.
図２は、高欄の支柱２を含む要部構造の詳細を示すものであり、図３は図２のＡ−Ａ線での断面を示すもので、支柱２は一定幅の縦板をなす前板２ａ及び後板２ｂと、両板２ａ、２ｂを板幅の中央部で連結する縦板２ｃよりなり、上端には上向きに凹む円弧形の受座７が、また中間部の上下にはそれぞれ縦板２ｃの両側に上向きに凹む円弧形の受座８が横向きに突設され、縦板２ｃ両側の左右の受座８はそれぞれ延長上に位置している。そして受座７には、主横梁４の各端部が継手９により連結されて掛けられ、受座下より主横梁端に捩じ込まれたボルト１１によって止着されており、また縦板２ｃ両側の上下の受座８にはそれぞれ、左右の横梁５の端部が掛けられ、各横梁５の端部はそれぞれ該端部にあけられた上下方向の貫通孔に上方より通したボルト１２の受座下に突出するネジ軸にナット１３を捩じ込むことにより止着されている。 FIG. 2 shows details of the structure of the main part including the balustrade support 2, and FIG. 3 shows a cross section taken along the line A-A in FIG. 2, before the support 2 forms a vertical plate with a constant width. It consists of a plate 2a, a rear plate 2b, and a vertical plate 2c that connects both plates 2a and 2b at the center of the plate width. Arc-shaped receiving seats 8 that are recessed upward on both sides of the vertical plate 2c are provided so as to project sideways, and the left and right receiving seats 8 on both sides of the vertical plate 2c are positioned on the extensions. Each end of the main cross beam 4 is connected to the seat 7 by a joint 9 and is fastened by a bolt 11 screwed into the end of the main cross beam from under the seat, and the vertical plate 2c. The upper and lower receiving seats 8 on both sides are respectively hooked with the end portions of the left and right lateral beams 5, and the end portions of the respective lateral beams 5 are respectively passed through the vertical through holes formed in the end portions of bolts 12 passed from above. It is fixed by screwing a nut 13 into a screw shaft protruding below the seat.
図示する高欄では、ボルト１２の頭部が横梁５の上面に突出しているため美観が損なわれ、また上段の横梁５より突出するボルト頭部は、歩行者の手に触れ易い位置にあるため、手が触れて怪我をするおそれがあった。そのうえ、横梁端を受座８に取着するため、ボルト１２を通し、受座下に突出するネジ軸にナット１３を捩じ込むときには、ボルト１２が連れ周りしないようにボルト頭部を工具を用いて固定しておく必要があり、作業性が悪かった。 In the handrail shown in the figure, the head of the bolt 12 protrudes from the upper surface of the cross beam 5 so that the aesthetic appearance is impaired, and the bolt head protruding from the upper cross beam 5 is in a position where it can be easily touched by a pedestrian. There was a risk of injury from touching the hand. In addition, in order to attach the end of the cross beam to the receiving seat 8, when the bolt 12 is passed and the nut 13 is screwed into the screw shaft projecting under the receiving seat, the bolt head is inserted into the tool so that the bolt 12 does not rotate. It was necessary to fix it using it, and workability was bad.
下記特許文献１には、ナットや該ナットに捩じ込んだボルトのネジ軸部がパイプ外周に露出しないようにするため、ナットを保持するナット保持部材を用いて該保持部材にナットを保持させた状態で該保持部材をパイプ端よりパイプ内にナットがパイプに予めあけておいたボルト通し孔に合致する位置まで挿入し、防護柵の支柱を貫通させたボルトの端部をパイプのボルト通し孔を通してパイプ内のナットに捩じ込んで止着する方法が開示されている。 In Patent Document 1 below, in order to prevent the screw shaft portion of the nut and the bolt screwed into the nut from being exposed to the outer periphery of the pipe, the nut is held by the holding member using a nut holding member that holds the nut. In this state, the holding member is inserted into the pipe from the end of the pipe to the position where the nut matches the bolt passage hole previously drilled in the pipe, and the end of the bolt penetrating the guard fence post is passed through the pipe. A method of screwing and fastening to a nut in a pipe through a hole is disclosed.
特許文献１に開示されるものでは、ナットや該ナットに捩じ込まれるボルトのネジ部端はパイプ内に納まり、外部に露出しないため美観が損なわれたり、手に触れて怪我をすることもなく、またナット保持部材に保持されたナットにボルトを捩じ込む際、ナットがナット保持部材に保持されて回り止めされるため、連れ周りすることもないため作業性がよい利点はあるが、パイプ内にナットを挿入して位置決めしたのち、パイプ外からボルトをパイプ内のナットに捩じ込む方法を図１〜図３に示す高欄における横梁５の取付けに適用するのには次のような問題がある。 In what is disclosed in Patent Document 1, the threaded ends of the nuts and bolts that are screwed into the nuts are stored in the pipe and are not exposed to the outside. In addition, when screwing a bolt into a nut held by the nut holding member, the nut is held by the nut holding member and is prevented from rotating, so there is an advantage that workability is good because it is not accompanied by rotation. The method of inserting the nut into the pipe and positioning it and then screwing the bolt into the nut in the pipe from the outside of the pipe is applied to the mounting of the cross beam 5 in the rail shown in FIGS. There's a problem.
第１は、下段の横梁５では特に横梁５にあけたボルト通し孔にナット１３のネジ孔が合致しているかどうかの確認が視認しにくいために、ボルト１２のネジ軸端がナット１３のネジ孔に合致するように、ナット保持部材を操作してナット位置を調整するのは手間がかかり、作業性が悪いことである。 First, since it is difficult to visually confirm whether or not the screw hole of the nut 13 matches the bolt hole formed in the horizontal beam 5 in the lower horizontal beam 5, the screw shaft end of the bolt 12 is the screw of the nut 13. It is troublesome to adjust the nut position by operating the nut holding member so as to match the hole, and the workability is poor.
第２は、ナット保持部材はナットを回り止めした固定状態で保持し、ナットを所定位置で位置決め後は横梁５端より側方に突出しないように横梁内にとどめておく必要があるが、ナット保持部材は一部でも横梁端より側方に突出していないと、ナットを所定一に位置決めするための操作が困難であることである。ナット保持部材を操作し易いように横梁端より側方に突出させていると、横梁端を受座上に掛ける際にナット保持部材が支柱２の縦板２ｃに当たって押込められ、折角位置決めされたナットがナット保持部材と共に横梁内を移動してしまうようになる。またナット位置決め後、ナット保持部材を抜き出すことができるようにすれば、ナット保持部材は横梁端より突出していてもよいが、そのために、ナットを例えばナット保持部材に形成される長溝内にスライド可能に嵌合させるようにすると、ナット保持部材を抜き出すとき、折角位置決めしたナットが動いたり、ナットのネジ孔の向きが傾いたりするようになる。 Secondly, the nut holding member is held in a fixed state in which the nut is prevented from rotating, and after positioning the nut at a predetermined position, it is necessary to keep the nut in the cross beam so that it does not protrude from the side of the cross beam 5 side. If even a part of the holding member does not protrude laterally from the end of the cross beam, it is difficult to perform an operation for positioning the nut at a predetermined position. If the nut holding member protrudes laterally from the end of the cross beam so that it can be easily operated, the nut holding member hits the vertical plate 2c of the column 2 and is positioned at the corner when the side beam end is hung on the seat. A nut will move in a cross beam with a nut holding member. If the nut holding member can be extracted after positioning the nut, the nut holding member may protrude from the end of the cross beam. For this purpose, the nut can be slid into a long groove formed in the nut holding member, for example. When the nut holding member is pulled out, the nut positioned at the corner is moved or the direction of the screw hole of the nut is inclined.
本発明は、上記の問題を解消することができる横梁の支柱への取付方法及び取付構造を提供することを目的とする。 An object of this invention is to provide the attachment method and attachment structure to the support | pillar of a cross beam which can eliminate said problem.
請求項１に係る発明は、支柱と、支柱間に架設される縦格子より構成され、該縦格子は両端がそれぞれ支柱より側方に突出する受座に取付けられる上下一対のパイプ状をなす横梁と、上下の横梁を連結する縦桟よりなる高欄における前記横梁を支柱に取付けるための取付方法であって、横梁端から横梁内にボルトを挿入して該ボルトのネジ軸端を横梁端部及び前記受座に予めあけておいたボルト通し孔に通し、ボルトのネジ軸を受座下に突出させたのち、ボルト保持部材を横梁端から横梁内に挿入し、ボルト頭部に係合させてボルトの回り止めをし、その後受座下に突出するボルトのネジ軸にナットを捩じ込み止着することを特徴とする。 The invention according to claim 1 is composed of a support column and a vertical grid installed between the support columns, and the vertical grid is formed as a pair of upper and lower pipes that are attached to a receiving seat whose both ends protrude laterally from the support column. And a mounting method for mounting the horizontal beam to the support column in the handrail composed of the vertical beam connecting the upper and lower horizontal beams, the bolt being inserted into the horizontal beam from the side of the horizontal beam and the screw shaft end of the bolt being the end of the horizontal beam and After passing through the bolt through hole previously opened in the seat, and projecting the screw shaft of the bolt under the seat, the bolt holding member is inserted into the transverse beam from the end of the transverse beam and engaged with the bolt head. The bolt is prevented from rotating, and then a nut is screwed into the screw shaft of the bolt projecting under the seat and fixed.
請求項２に係る発明は、支柱と、支柱間に架設される縦格子より構成され、該縦格子は両端がそれぞれ支柱より側方に突出する受座に取付けられる上下一対のパイプ状をなす横梁と、上下の横梁を連結する縦桟よりなる高欄における、前記横梁端部と受座との取付構造であって、横梁内から横梁端部及び受座にあけられたボルト通し孔に通されたボルトと、横梁端から横梁内に挿入された状態でボルト頭部に対しスライド可能かつ回り止めされて嵌合するボルト保持部材と、受座下に突出するボルトのネジ軸に捩じ込まれるナットよりなることを特徴とする。 The invention according to claim 2 is composed of a support column and a vertical lattice installed between the support columns, and the vertical lattice has a pair of upper and lower pipes attached to a receiving seat whose both ends protrude laterally from the support column. And a mounting structure of the horizontal beam end portion and the receiving seat in the handrail composed of the vertical beam connecting the upper and lower horizontal beams, and passed from the inside of the horizontal beam to the bolt through hole opened in the horizontal beam end portion and the receiving seat. a bolt, the bolt holding member in a state in which the transverse beam end is inserted into the crossbeam relative to the bolt head is slidably and detent fitting, nut screwed to the screw shaft of the bolt which projects under seat It is characterized by comprising.
請求項３に係る発明は、請求項２に係る発明において、ボルト保持部材は、ボルト頭部がスライド可能かつ回り止めされて嵌合する凹形断面の溝を有することを特徴とし、
請求項４に係る発明は、請求項２に係る発明において、ボルト保持部材は、ボルト頭部がスライド可能かつ回り止めされて嵌合する凹形断面の凹部と、凹部底に形成され、ボルトのネジ軸にスライド可能に挿入されるスリットを有することを特徴とする。
The invention according to claim 3 is characterized in that, in the invention according to claim 2, the bolt holding member has a groove having a concave cross section in which the bolt head is slidable and is prevented from rotating.
The invention according to a fourth aspect is the invention according to the second aspect, wherein the bolt holding member is formed in a concave cross-section concave portion in which the bolt head is slidable and fitted in a non-rotating manner, and in the concave bottom. It has a slit which is slidably inserted into the screw shaft.
請求項１記載の方法によって形成された取付構造及び請求項２記載の取付構造によると、横梁上にはボルト頭部やナットが露出しないため美観が損なわれたり、手に触れて怪我をするおそれがないこと、横梁端部の支柱受座への取付けは受座下に突出するボルトのネジ軸にナットを捩じ込むことにより行われるが、ボルトは横梁端部及び受座に形成されたボルト通し孔に通すだけでボルトが位置決めされて動きが規制された状態で保持され、この状態でボルト保持部材を横梁端から押し込んでボルトに当たってもボルトが押し込まれることはなく、またボルト保持部材は、ボルトの位置決めのための操作が不要で、ボルトに係合して回り止めを行うだけでよいから、全体を横梁内に押し込んで横梁内に収めることができ、したがって横梁端より突出して取付時に支柱の縦板に支えて取付けに支障を来たすことがないこと、ボルトのネジ軸は受座より突出して視認できるため、縦格子の下段の横梁であっても位置確認が容易で、ナットの捩じ込み作業が容易に行え、しかもナットの捩じ込みはボルト保持部材の押し込みによりボルトがボルト通し孔の範囲内で多少傾いたとしてもナットの捩じ込みに支障を生ずることはないこと等の効果を有する。 According to the mounting structure formed by the method according to claim 1 and the mounting structure according to claim 2, the bolt head and nut are not exposed on the cross beam, so that the aesthetic appearance may be impaired or the hand may be touched and injured. The end of the cross beam is attached to the column seat by screwing the nut into the screw shaft of the bolt projecting under the seat, but the bolt is a bolt formed at the end of the cross beam and the seat. The bolt is positioned and held in a state where movement is restricted simply by passing it through the through hole.In this state, even if the bolt holding member is pushed from the end of the cross beam and hits the bolt, the bolt is not pushed. The operation for positioning the bolt is unnecessary, and it is only necessary to engage the bolt to prevent rotation, so that the whole can be pushed into the transverse beam and placed in the transverse beam. Since it protrudes and is supported by the vertical plate of the column during installation, the screw shaft of the bolt protrudes from the seat and can be visually confirmed. The nut can be screwed in easily, and the nut can be screwed in even if the bolt is slightly tilted within the range of the bolt through hole by pushing the bolt holding member. It has the effect of not being.
請求項３又は４記載のボルト保持部材は、構造が簡単で、横梁内に押し込むだけでボルトの回り止めを行うことができる。 The bolt holding member according to claim 3 has a simple structure, and the bolt can be prevented from rotating only by being pushed into the cross beam.
以下、本発明の実施形態について図面により説明する。
図４は、図１〜図３に示す高欄において、支柱２の受座８に縦格子３の横梁５端部を取付ける際に用いるボルト保持部材２１を示すもので、該保持部材２１は、上下に凹形断面の溝２２を有して縦断面がＨ形をなしている。この部材２１の材質は、金属であっても樹脂又は木製であってもよい。溝２２には後述するボルト頭部が遊嵌し、溝２２に沿ってスライドは可能であるが一定量以上の回動はできないようになっている。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 4 shows a bolt holding member 21 used when attaching the end of the cross beam 5 of the vertical lattice 3 to the seat 8 of the column 2 in the column shown in FIGS. 1 to 3. Has a groove 22 with a concave cross section, and the vertical cross section is H-shaped. The material of the member 21 may be metal, resin, or wood. A bolt head, which will be described later, is loosely fitted in the groove 22 and can be slid along the groove 22 but cannot be rotated more than a certain amount.
ボルト保持部材２１は図５又は図６に示すように断面円形のパイプ又は角パイプよりなる横梁２３、２４内に横梁端より挿入されるが、長さが図５に示す横梁２３の内径より大であるか、或いは図６に示す横梁２４の内側の横幅より大であって、溝２２内に嵌合するボルト２８の頭部２８ａを中心とする回動ができないか、回動量が規制されるようになっていれば、横梁内への挿入状態で上下方向に多少動いてもボルト頭部２８ａの一部にでも引っ掛り、ボルト頭部２８ａより外れない限り支障はない。左右方向の動きはボルト頭部２８ａにより規制されるが、ボルト頭部２８ａとの間の隙間の範囲内で左右方向に若干動いても差し支えない。 As shown in FIG. 5 or FIG. 6, the bolt holding member 21 is inserted from the end of the transverse beam into the transverse beams 23 and 24 made of a pipe or square pipe having a circular cross section, but the length is larger than the inner diameter of the transverse beam 23 shown in FIG. Or larger than the inner width of the transverse beam 24 shown in FIG. 6, and it is impossible to rotate around the head 28a of the bolt 28 fitted in the groove 22, or the amount of rotation is restricted. If this is the case, even if it moves somewhat in the vertical direction in the state of being inserted into the cross beam, it will be caught by a part of the bolt head 28a and there will be no problem as long as it does not come off from the bolt head 28a. Although the movement in the left-right direction is restricted by the bolt head 28a, it may move slightly in the left-right direction within the gap between the bolt head 28a.
前記ボルト保持部材２１を用いた支柱受座８への横梁端部の取付は、次のようにして行われる。 Attachment of the end portion of the cross beam to the support column seat 8 using the bolt holding member 21 is performed as follows.
図５に示す横梁２３の端部又は図６に示す横梁２４の端部に予めボルト通し孔２５又は２６をあけておき、横梁２３又は２４端から横梁内に座金２７に通したボルト２８をネジ軸部２８ｂを先頭にしてネジ軸部２８ｂが斜め下向きとなるようにして挿入する。ネジ軸部端がボルト通し孔２５又は２６に当たると、ボルト２８を起しながらネジ軸部２８ｂをボルト通し孔２５又は２６に挿入する。ボルト頭部２８ａが座金２７を介し横梁２３又は２４に当たって支持されたのち、前述のボルト保持部材２１を横梁端から横梁内に押し込み、溝２２内にボルト頭部２８ａを差し込む。このときボルト２８はボルト通し孔２５又は２６に通され、横梁２３又は２４の長手方向の動きは規制されるため、ボルト保持部材２１が押し込まれてもボルト２８は位置ずれを生ずることはない。なお、横梁内へのボルト保持部材２１の押込みは、ボルト保持部材２１が横梁内に収まり、横梁端より突出しない程度まで行われ、ボルト保持部材２１の溝内にボルト頭部２８ａを差込んだボルト２８はまた、溝内での回動が規制され、回り止めされる。 Bolt through holes 25 or 26 are made in advance at the end of the cross beam 23 shown in FIG. 5 or the end of the cross beam 24 shown in FIG. 6, and the bolt 28 passed through the washer 27 from the end of the cross beam 23 or 24 into the cross beam is screwed. Inserting the screw shaft portion 28b obliquely downward with the shaft portion 28b at the top. When the end of the screw shaft portion hits the bolt through hole 25 or 26, the screw shaft portion 28b is inserted into the bolt through hole 25 or 26 while raising the bolt 28. After the bolt head 28 a is supported by hitting the horizontal beam 23 or 24 via the washer 27, the bolt holding member 21 is pushed into the horizontal beam from the end of the horizontal beam, and the bolt head 28 a is inserted into the groove 22. At this time, the bolt 28 is passed through the bolt through hole 25 or 26 and the movement of the transverse beam 23 or 24 in the longitudinal direction is restricted. Therefore, even if the bolt holding member 21 is pushed in, the bolt 28 is not displaced. The bolt holding member 21 is pushed into the transverse beam until the bolt holding member 21 is accommodated in the transverse beam and does not protrude from the end of the transverse beam, and the bolt head 28a is inserted into the groove of the bolt holding member 21. The bolt 28 is also restricted from rotating in the groove and is prevented from rotating.
図５及び図６は、以上のようにして横梁内に納まるボルト保持部材２１により回り止めされたボルト２８がネジ軸部２８ｂを横梁２３又は２４より下向きに突出させた状態を示す。 FIG. 5 and FIG. 6 show a state in which the bolt 28 that is prevented from rotating by the bolt holding member 21 that is housed in the horizontal beam as described above projects the screw shaft portion 28 b downward from the horizontal beam 23 or 24.
横梁２３又は２４は、ネジ軸部２８ｂを突出させた図５又は図６の状態で、ネジ軸部端を図５に示す円弧状の支柱受座８又は図６に示すプレート状の支柱受座３１のボルト通し孔２９に当てがい、該ボルト通し孔２９に差込んで横梁端を受座８又は３１に掛ける。このときボルト保持部材２１は前述するように横梁内に収まっているため、支柱２の縦板２ｃに支えることはない。 5 or 6 in which the threaded shaft portion 28b protrudes, the transverse beam 23 or 24 has an arc-shaped column seat 8 shown in FIG. 5 or a plate-shaped column seat shown in FIG. It is applied to the bolt through hole 29 of 31 and inserted into the bolt through hole 29 and the end of the cross beam is hung on the seat 8 or 31. At this time, since the bolt holding member 21 is housed in the cross beam as described above, it is not supported by the vertical plate 2c of the support column 2.
ボルト２８のネジ軸部２８ｂを受座８又は３１のボルト通し孔２９に通したのち、受座８又は３１より下方に突出するネジ軸部２８ｂに座金３３を介しナット３４を捩じ込み締着する。ボルト２８は前述するように一定量以上回動しないように回り止めされているため、ナットの捩じ込み時にボルト２８が連れ回りすることはない。
以上のようにして横梁２３又は２４の支柱受座８への取付けが行われ、図７は図５に示す横架２３の取付状態を示す。
After passing the screw shaft portion 28b of the bolt 28 through the bolt through hole 29 of the receiving seat 8 or 31, the nut 34 is screwed into the screw shaft portion 28b protruding downward from the receiving seat 8 or 31 via the washer 33 and tightened. To do. Since the bolt 28 is prevented from rotating beyond a certain amount as described above, the bolt 28 is not rotated when the nut is screwed.
As described above, the horizontal beam 23 or 24 is attached to the column seat 8, and FIG. 7 shows an attached state of the horizontal frame 23 shown in FIG. 5.
本実施形態によると、ボルト２８はネジ軸部２８ｂを横梁２３又は２４のボルト通し孔２５又は２６に通すだけで位置決めされ、ボルト頭部２８ａがボルト保持部材２１の溝内に嵌挿されるようにボルト保持部材２１を押し込んでもボルト２８は位置ずれを生ずることがない。しかもボルト２８はボルト保持部材２１によって図５及び図６の上下方向の動きが規制され、横梁内に押し込まれてもボルト通し孔２５又は２６より離脱してボルト全体が横梁内に入り込むことはない。またボルト保持部材２１は、ボルト２８の位置決めのための操作をする必要がなく、単にボルト頭部２８ａを溝内のどの位置に位置させてもよいため、横梁内に押し込んで横梁端より突出しないようにすることができ、横梁取付時に支柱縦板２ｃに支えて取付けに支障を生ずることがない。ボルト２８は、溝内で一定量以上の回動が規制され、ボルト保持部材２１も横梁内で一定量以上は回動できないようになっているため、ナットの捩じ込み時にボルト２８が回動するとしても、回動は一定の範囲内で、限度まで回動すると、それ以上の回動は生じないため、ナット３４による締着が支障なく行える。しかもナット３４の捩じ込みはボルト２８のネジ軸部２８ｂが支柱受座８より下方に突出しているため、ボルト２８の位置確認が容易で、ナット３４の捩じ込みも容易に行える。 According to the present embodiment, the bolt 28 is positioned by simply passing the screw shaft portion 28b through the bolt passage hole 25 or 26 of the cross beam 23 or 24, and the bolt head portion 28a is inserted into the groove of the bolt holding member 21. Even if the bolt holding member 21 is pushed in, the bolt 28 is not displaced. In addition, the vertical movement of the bolt 28 in FIG. 5 and FIG. 6 is restricted by the bolt holding member 21, and even if the bolt 28 is pushed into the horizontal beam, it is separated from the bolt through hole 25 or 26 and the entire bolt does not enter the horizontal beam. . Further, the bolt holding member 21 does not need to be operated for positioning the bolt 28, and the bolt head 28a may be positioned at any position in the groove, so that it does not protrude from the end of the cross beam by being pushed into the cross beam. In this case, the horizontal beam is supported by the column vertical plate 2c at the time of horizontal beam installation, and the installation is not hindered. The bolt 28 is restricted from turning over a certain amount in the groove, and the bolt holding member 21 is also prevented from turning over a certain amount in the cross beam. Therefore, the bolt 28 turns when the nut is screwed. Even then, the rotation is within a certain range, and if the rotation is performed to the limit, no further rotation is generated, so that the nut 34 can be fastened without any trouble. Moreover, since the screw shaft portion 28b of the bolt 28 protrudes downward from the support column seat 8, the nut 34 can be screwed in easily, and the nut 34 can be screwed in easily.
前記実施形態では、横梁２３又は２４は断面円形のパイプ又は角パイプ状をなしているか、断面楕円形や多角形のパイプであっても適用可能である。 In the above embodiment, the cross beam 23 or 24 may be a pipe having a circular cross section or a square pipe, or may be a pipe having an elliptical cross section or a polygonal cross section.
またボルト保持部材２１は縦断面がＨ形をなしているが、下面が開口する該断面凹形であってもよい。この場合、横梁内に挿入されたボルト保持部材２１の上方に空間ができ、ボルト保持部材２１が上方に動くようなことがあってもボルト頭部２８ａより外れない限り問題はない。 The bolt holding member 21 has an H-shaped vertical cross section, but may have a concave cross section with an open bottom surface. In this case, even if there is a space above the bolt holding member 21 inserted in the cross beam and the bolt holding member 21 moves upward, there is no problem as long as it does not come off from the bolt head 28a.
図８に示すボルト保持部材３６は、底壁３６ａと、底壁両側の側壁３６ｂよりなり、側壁下部と底壁３６ａとでボルト頭部２８ａが回り止めされて嵌挿される凹形断面の凹部３７を構成し、底壁３６ａには、その一端よりボルト２８のネジ部２８ｂが嵌挿されるスリット３９を形成している。底壁両側の側壁３６ｂは凹部３７を構成する部分より上方が内向きに斜めに傾斜し、窄まっている。これにより図９に示すように、ボルト頭部２８ａの上方への抜け出しを生じないようにしている。 The bolt holding member 36 shown in FIG. 8 includes a bottom wall 36a and side walls 36b on both sides of the bottom wall, and a concave section 37 having a concave cross section in which the bolt head portion 28a is prevented from being rotated and inserted between the lower side wall and the bottom wall 36a. The bottom wall 36a is formed with a slit 39 into which the threaded portion 28b of the bolt 28 is inserted. The side walls 36b on both sides of the bottom wall are slanted with the upper side inclined obliquely inward from the portion constituting the recess 37. As a result, as shown in FIG. 9, the bolt head 28a is prevented from coming out upward.
図１０に示すボルト保持部材４１は、図８に示すボルト保持部材３６において、凹部３７を構成するネジ部分より上方の一方（図８の右側）の側壁３６ｂを内向きに折曲げて形成し、ボルト頭部２８ａの上方の動きを規制している。 A bolt holding member 41 shown in FIG. 10 is formed by bending inward one side wall (b) in FIG. 8 above the screw portion constituting the concave portion 37 in the bolt holding member 36 shown in FIG. The upward movement of the bolt head 28a is restricted.
本実施形態のボルト保持部材３６を用いても、前記ボルト保持部材２１を用いた場合と同様の効果を生ずるほか、ボルト保持部材３６はプレス加工により容易に製作することができる。 Even if the bolt holding member 36 of this embodiment is used, the same effect as the case of using the bolt holding member 21 is produced, and the bolt holding member 36 can be easily manufactured by press working.
２・・支柱
４、５、２３、２４・・横梁
６・・縦桟
７、８、３１・・支柱受座
２１、３６、４１・・ボルト保持部材
２２・・溝
２５、２６、２９・・ボルト通し孔
２８・・ボルト
２８ａ・・ボルト頭部
２８ｂ・・ネジ軸部
３７・・凹部
３９・・スリット
2 ・ ・ Posts 4, 5, 23, 24 ・ ・ Horizontal beam
6 .. Vertical rails 7, 8, 31.. Support seats 21, 36, 41.. Bolt holding member 22... Grooves 25, 26 and 29... Bolt through hole 28. ..Screw shaft part 37
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| JP2013245797A JP2013245797A (en) | 2013-12-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5422662U (en) * | 1977-07-19 | 1979-02-14 | ||
| JPS629654U (en) * | 1985-07-02 | 1987-01-21 | ||
| JP2506391Y2 (en) * | 1991-03-29 | 1996-08-07 | 株式会社ダイクレ | Fixed structure of balustrade columns and cross beams |
| JP2000144660A (en) * | 1998-11-10 | 2000-05-26 | Nippon Steel Metal Prod Co Ltd | Beam pipe fitting structure for protective fence |
| JP3706273B2 (en) * | 1999-07-13 | 2005-10-12 | 積水樹脂株式会社 | Assembly structure of support and adherend |
| JP2001315642A (en) * | 2000-05-01 | 2001-11-13 | Kawasaki Heavy Ind Ltd | Bolt fastening structure for rolling stock |
| JP2003041810A (en) * | 2001-07-31 | 2003-02-13 | Sekisui Jushi Co Ltd | Size-free fastening tool for fence |
| JP3871685B2 (en) * | 2004-06-22 | 2007-01-24 | 株式会社オーティス | Roof decorative panel mounting bracket |
| JP2008075402A (en) * | 2006-09-25 | 2008-04-03 | Jfe Metal Products & Engineering Inc | Bracket for guard fence, and guard fence |
| JP4767876B2 (en) * | 2006-11-15 | 2011-09-07 | 積水樹脂株式会社 | Fence beam mounting structure |
| JP3155070U (en) * | 2009-08-25 | 2009-11-05 | 昭和鉄工株式会社 | fence |
| JP2012047236A (en) * | 2010-08-25 | 2012-03-08 | Nippon Steel & Sumikin Metal Products Co Ltd | Nut holding member |
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