JP2023034859A - Binding fitting, binding structure for steel members, and binding method for steel members - Google Patents

Binding fitting, binding structure for steel members, and binding method for steel members Download PDF

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JP2023034859A
JP2023034859A JP2021141307A JP2021141307A JP2023034859A JP 2023034859 A JP2023034859 A JP 2023034859A JP 2021141307 A JP2021141307 A JP 2021141307A JP 2021141307 A JP2021141307 A JP 2021141307A JP 2023034859 A JP2023034859 A JP 2023034859A
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binding
locking portion
steel member
hole
extending
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範寛 大高
Norihiro Otaka
雄充 藤本
Yuji Fujimoto
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Nippon Steel Metal Products Co Ltd
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Nippon Steel Metal Products Co Ltd
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Abstract

To provide a binding fitting capable of shortening a construction time, reducing noise in construction, and sufficiently securing binding force.SOLUTION: A binding fitting 1 for binding together steel members in which through holes 92 are formed, has: a penetrating portion 2 capable of penetrating through holes 92-1 and 92-2 formed in adjacent steel members 9-1 and 9-2; and a first locking portion 3 having a head 30 capable of being screwed to one end side of the penetrating portion 2, and an enlarged diameter portion 31 disposed between the head 30 and the steel member 9-2 and having a diameter larger than that of the through hole 92. The penetrating portion 2 has: a threaded portion 29 to which the head 30 is screwed on one end side; and a second locking portion 22 extending orthogonally to the threaded portion 29. The second locking portion 22 has: a first extending portion 23 connected from the threaded portion 29; and a second extending portion 24 bent and extending from the first extending portion 23 in an in-plane direction orthogonal to an extending direction of the threaded portion 29.SELECTED DRAWING: Figure 2

Description

本発明は、緊結金具、鋼製部材の緊結構造及び鋼製部材の緊結方法に関する。 TECHNICAL FIELD The present invention relates to a binding fitting, a binding structure for steel members, and a binding method for steel members.

ライナープレートやコルゲート鋼板等の鋼製部材が互いに連結されて構造物が構築される。例えば、ライナープレート同士が複数連結されて、深礎杭、集水井、水中仮締切、橋脚等を構築する際の土留めとして用いられる。例えば、コルゲート鋼板同士が複数連結されて、水路として用いられる。 A structure is constructed by connecting steel members such as liner plates and corrugated steel plates to each other. For example, a plurality of liner plates are connected to each other and used as earth retaining when constructing deep foundation piles, drainage wells, underwater temporary coffers, bridge piers, and the like. For example, a plurality of corrugated steel plates are connected to each other and used as water channels.

ライナープレート等の鋼製部材は、隣接する鋼製部材に順次連結されて、筒状やＵ字状に構築される。通常、こうした鋼製部材同士を連結する場合、隣接する鋼製部材同士をボルト接合することとなる。しかしながら、ボルト接合の場合には、ボルトを波形鋼板に貫通させた上で、ナットを螺着させる。このため、ボルトにナットを螺着させるのに時間を要し、施工に時間がかかるという問題点がある。 Steel members such as liner plates are sequentially connected to adjacent steel members to form a tubular or U-shaped structure. Usually, when connecting such steel members together, the adjacent steel members are bolted together. However, in the case of bolt connection, the bolt is passed through the corrugated steel plate and then the nut is screwed. Therefore, there is a problem that it takes time to screw the nut onto the bolt, and the construction takes time.

従来、ライナープレート同士を連結する作業を簡単に行うことを目的として、特許文献１～２の開示技術が提案されている。 Conventionally, techniques disclosed in Patent Documents 1 and 2 have been proposed for the purpose of simplifying the work of connecting liner plates.

特許文献１に開示されたライナープレートの緊結金具は、上下のライナープレートの接触させたそれぞれのフランジの孔に挿入する差し込み部と、接触させた２枚のフランジを挟む挟持部からなることを特徴とする。 The binding fittings for liner plates disclosed in Patent Document 1 are characterized by comprising an insertion portion inserted into holes in the flanges of the upper and lower liner plates that are in contact with each other, and a clamping portion that sandwiches the two flanges in contact with each other. and

特許文献２に開示されたライナープレートの仮止め具は、上下のライナープレートの接触させた双方のフランジの孔に挿入する差し込み部と、その２枚のフランジを挿入できる間隔のスリットを設けた挟持部と、差し込み部と挟持部とを接続する接続部とからなり、接続部から挟持部へかけて「く」の字状に折ったことを特徴とする。 The temporary fixing device for liner plates disclosed in Patent Document 2 has an insertion portion that is inserted into holes in the flanges of the upper and lower liner plates that are in contact with each other, and a slit that allows the two flanges to be inserted. and a connecting portion connecting the inserting portion and the clamping portion, and is characterized by being folded in a "<" shape from the connecting portion to the clamping portion.

実開平３－６９０９３号公報Japanese Utility Model Laid-Open No. 3-69093 実開平２－１２５０９５号公報Japanese Utility Model Laid-Open No. 2-125095

ところで、特許文献１、２の開示技術では、挟持部でフランジを挟み込むときやライナープレートから取り外すときには、専用の冶具やハンマー等の打撃手段で叩き込む必要がある。このため、騒音が発生してしまうという問題点があった。また、特許文献１、２の開示技術では、単にフランジ同士を挟んで固定するだけであるため、フランジ同士を固定する力が比較的に低いという問題点があった。 By the way, in the techniques disclosed in Patent Literatures 1 and 2, it is necessary to hit the flange with a special jig or a hammer such as a hammer when the flange is sandwiched between the sandwiching portions or when the flange is removed from the liner plate. Therefore, there is a problem that noise is generated. Moreover, in the techniques disclosed in Patent Documents 1 and 2, since the flanges are simply fixed by sandwiching them, there is a problem that the force for fixing the flanges is relatively low.

そこで、本発明は、上述した問題点に鑑みて案出されたものであり、その目的とするところは、施工時間を短縮することが可能となり、施工における騒音を低減することが可能となり、緊結力を十分に確保することが可能となる緊結金具、鋼製部材の緊結構造及び鋼製部材の緊結方法を提供することにある。 Therefore, the present invention has been devised in view of the above-mentioned problems, and its purpose is to shorten the construction time, reduce the noise during construction, and tighten the construction. To provide a binding fitting, a binding structure for steel members, and a method for binding steel members, capable of securing a sufficient force.

本発明に係る緊結金具は、貫通孔が形成される鋼製部材同士を緊結するための緊結金具であって、隣接する鋼製部材に形成される各々の貫通孔に貫通可能な貫通部と、前記貫通部の一端部側に螺合可能な頭部と、前記頭部と前記鋼製部材との間に配置されるとともに前記貫通孔よりも径大に形成される拡径部と、を有する第１係止部と、を備え、前記貫通部は、一端部側に前記頭部が螺合されるネジ部と、前記ネジ部に対して直交して延びる第２係止部と、を有し、前記第１係止部と前記第２係止部とは、隣接する前記鋼製部材同士を挟んで緊結するものであり、前記第２係止部は、前記ネジ部から繋がる第１延伸部と、前記ネジ部の延伸方向に直交する面内方向で前記第１延伸部から屈曲して延びる第２延伸部と、を有することを特徴とする。 A binding fitting according to the present invention is a binding fitting for binding together steel members having through-holes formed therein, and includes a through-hole that can penetrate through each through-hole formed in an adjacent steel member; It has a head that can be screwed to one end of the through-hole, and an enlarged diameter part that is arranged between the head and the steel member and has a larger diameter than the through-hole. a first locking portion, wherein the through portion has a threaded portion to which the head is screwed on one end side, and a second locking portion extending orthogonally to the threaded portion. The first locking portion and the second locking portion sandwich and tighten the adjacent steel members, and the second locking portion is a first extending portion connected from the screw portion. and a second extending portion bent and extending from the first extending portion in an in-plane direction perpendicular to the extending direction of the screw portion.

本発明に係る鋼製部材の緊結構造は、貫通孔が形成される鋼製部材同士を緊結する鋼製部材の緊結構造であって、第１貫通孔が形成される第１鋼製部材と、第２貫通孔が形成される、前記第１鋼製部材に隣接する第２鋼製部材と、前記第１鋼製部材と前記第２鋼製部材とを緊結するための緊結金具とを備え、前記緊結金具は、前記第１貫通孔と前記第２貫通孔とに貫通される貫通部と、前記貫通部の一端部側に設けられる頭部と、前記頭部と前記第１鋼製部材との間に配置されるとともに前記第１貫通孔よりも径大に形成される拡径部と、を有する第１係止部と、を有し、前記貫通部は、一端部側に前記頭部が螺合されるネジ部と、前記ネジ部に対して直交して延びる第２係止部と、を有し、前記第１係止部と前記第２係止部とは、隣接する前記第１鋼製部材と前記第２鋼製部材を挟んで緊結するものであり、前記第２係止部は、前記ネジ部から繋がる第１延伸部と、前記ネジ部の延伸方向に直交する面内方向で前記第１延伸部から屈曲して延びる第２延伸部と、を有することを特徴とする。 A steel member binding structure according to the present invention is a steel member binding structure for binding together steel members having through holes formed therein, the first steel member having a first through hole formed thereon; a second steel member adjacent to the first steel member, in which a second through hole is formed; and a binding fitting for binding the first steel member and the second steel member, The binding fitting includes a through portion penetrating the first through hole and the second through hole, a head provided on one end side of the through portion, the head and the first steel member. an enlarged diameter portion disposed between and formed to have a diameter larger than that of the first through hole; and a second locking portion extending orthogonally to the threaded portion, and the first locking portion and the second locking portion are adjacent to each other. The first steel member and the second steel member are sandwiched and bound, and the second locking portion includes a first extending portion connected from the threaded portion and an in-plane perpendicular to the extending direction of the threaded portion. and a second extension that bends and extends from the first extension in a direction.

本発明に係る鋼製部材の緊結方法は、貫通孔が形成される鋼製部材を緊結する鋼製部材の緊結方法であって、第１鋼製部材に形成される第１貫通孔と、前記第１鋼製部材に隣接する第２鋼製部材に形成される第２貫通孔とに貫通される貫通部と、前記貫通部の一端部側に螺合可能な頭部と、前記第１貫通孔よりも径大に形成される拡径部と、を有する第１係止部と、を備え、前記貫通部は、一端部側に前記頭部が螺合されるネジ部と、前記ネジ部に対して直交して延びる第２係止部と、を有し、前記第２係止部は、前記ネジ部から繋がる第１延伸部と、前記ネジ部の延伸方向に直交する面内方向で前記第１延伸部から屈曲して延びる第２延伸部と、を有する、緊結金具を用いて、予め前記ネジ部に前記頭部を螺合させておき、前記第１貫通孔と前記第２貫通孔とに、前記第２係止部を貫通させ、前記第１係止部と前記第２係止部との間に、前記第１鋼製部材と前記第２鋼製部材とを配置する貫通工程と、前記ネジ部に前記頭部を更に螺合させることにより、前記第１鋼製部材と前記第２鋼製部材とを前記第１係止部と前記第２係止部とにより挟んで緊結する緊結工程と、を備えることを特徴とする。 A steel member binding method according to the present invention is a steel member binding method for binding steel members in which a through hole is formed, comprising: a first through hole formed in a first steel member; a through portion penetrating a second through hole formed in a second steel member adjacent to the first steel member; a head screwable to one end side of the through portion; an enlarged diameter portion formed to be larger in diameter than the hole; and a second locking portion extending orthogonally to the threaded portion, wherein the second locking portion includes a first extending portion connected from the threaded portion and an in-plane direction orthogonal to the extending direction of the threaded portion. and a second extending portion that bends and extends from the first extending portion. a hole through which the second locking portion passes through, and the first steel member and the second steel member are arranged between the first locking portion and the second locking portion; and further screwing the head onto the threaded portion so that the first steel member and the second steel member are sandwiched between the first locking portion and the second locking portion. and a tightening step for tightening.

本発明によれば、施工時間を短縮することが可能となり、施工における騒音を低減することが可能となり、緊結力を十分に確保することが可能となる。 ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to shorten construction time, to reduce the noise in construction, and to ensure sufficient binding force.

図１は、第１実施形態に係る鋼製部材の緊結構造の第１例を示す斜視図である。FIG. 1 is a perspective view showing a first example of a binding structure for steel members according to the first embodiment. 図２（ａ）は、第１実施形態に係る鋼製部材の緊結構造の第１例を示す正面図であり、図２（ｂ）は、その側面図である。FIG. 2(a) is a front view showing a first example of a steel member binding structure according to the first embodiment, and FIG. 2(b) is a side view thereof. 図３（ａ）は、第１実施形態に係る緊結金具の第１例を示す側面図であり、図３（ｂ）は、その平面図である。FIG. 3(a) is a side view showing a first example of the binding fitting according to the first embodiment, and FIG. 3(b) is a plan view thereof. 図４（ａ）は、鋼製部材の緊結方法における貫通工程において貫通部を他端部側から貫通する前の状態を示す正面図であり、図４（ｂ）は、その側面図である。FIG. 4(a) is a front view showing a state before the penetration portion is penetrated from the other end side in the penetration step in the method for binding steel members, and FIG. 4(b) is a side view thereof. 図５（ａ）は、ライナープレートの緊結方法において第１係止部と第２係止部とにより挟んで緊結する前の状態を示す正面図であり、図５（ｂ）は、ライナープレートの緊結方法において第１係止部と第２係止部とにより挟んで緊結した後の状態を示す正面図である。FIG. 5(a) is a front view showing a state before the liner plate is sandwiched between the first locking portion and the second locking portion in the method of binding the liner plate, and FIG. 5(b) is a front view of the liner plate. FIG. 10 is a front view showing a state after being pinched and tied between the first locking portion and the second locking portion in the binding method; 図６（ａ）は、第１実施形態に係る緊結金具の第２例を示す正面図であり、図６（ｂ）は、その側面図である。FIG. 6(a) is a front view showing a second example of the binding fitting according to the first embodiment, and FIG. 6(b) is a side view thereof. 図７（ａ）は、第１実施形態に係る鋼製部材の緊結構造の第２例を示す正面図であり、図７（ｂ）は、その側面図である。FIG. 7(a) is a front view showing a second example of the steel member binding structure according to the first embodiment, and FIG. 7(b) is a side view thereof. 図８は、第２実施形態に係る鋼製部材の緊結構造の一例を示す斜視図である。FIG. 8 is a perspective view showing an example of a binding structure for steel members according to the second embodiment. 図９（ａ）は、第２実施形態に係る鋼製部材の緊結構造の一例を示す正面図であり、図９（ｂ）は、その側面図である。FIG. 9(a) is a front view showing an example of the steel member binding structure according to the second embodiment, and FIG. 9(b) is a side view thereof. 図１０（ａ）は、鋼製部材の緊結方法における貫通工程において貫通部を他端部側から貫通する前の状態を示す正面図であり、図１０（ｂ）は、その側面図である。FIG. 10(a) is a front view showing a state before the penetration part is penetrated from the other end side in the penetration step in the method for binding steel members, and FIG. 10(b) is a side view thereof. 図１１（ａ）は、鋼製部材の緊結方法において第１係止部と第２係止部とにより挟んで緊結する前の状態を示す正面図であり、図１１（ｂ）は、鋼製部材の緊結方法において第１係止部と第２係止部とにより挟んで緊結した後の状態を示す正面図である。FIG. 11(a) is a front view showing a state before clamping between the first locking portion and the second locking portion in a method for binding a steel member, and FIG. 11(b) is a steel member FIG. 10 is a front view showing a state after clamping by sandwiching between the first locking portion and the second locking portion in the method of binding the members. 図１２は、緊結時にネジ部の軸心が傾く状態を示す正面図である。FIG. 12 is a front view showing a state in which the axial center of the screw portion is tilted during tightening. 図１３（ａ）は、第３実施形態の第１例に係るライナープレートの緊結方法において第１係止部と第２係止部とにより挟んで緊結する前の状態を示す正面図であり、図１３（ｂ）は、第３実施形態の第１例に係るライナープレートの緊結方法において第１係止部と第２係止部とにより挟んで緊結した後の状態を示す正面図である。FIG. 13(a) is a front view showing a state before the liner plate is pinched and tied between the first locking portion and the second locking portion in the liner plate binding method according to the first example of the third embodiment, FIG. 13(b) is a front view showing a state after the liner plate is sandwiched between the first engaging portion and the second engaging portion in the method for binding the liner plate according to the first example of the third embodiment. 図１４（ａ）は、第３実施形態の第２例に係るライナープレートの緊結方法において第１係止部と第２係止部とにより挟んで緊結する前の状態を示す正面図であり、図１４（ｂ）は、第３実施形態の第２例に係るライナープレートの緊結方法において第１係止部と第２係止部とにより挟んで緊結した後の状態を示す正面図である。FIG. 14(a) is a front view showing a state before the liner plate is sandwiched between the first engaging portion and the second engaging portion in the liner plate binding method according to the second example of the third embodiment, and FIG. 14(b) is a front view showing a state after the liner plate is sandwiched between the first engaging portion and the second engaging portion in the method for binding the liner plate according to the second example of the third embodiment. 図１５（ａ）は、第４実施形態の第１例に係るライナープレートの緊結方法において第１係止部と第２係止部とにより挟んで緊結する前の状態を示す正面図であり、図１５（ｂ）は、第４実施形態の第１例に係るライナープレートの緊結方法において第１係止部と第２係止部とにより挟んで緊結した後の状態を示す正面図である。FIG. 15(a) is a front view showing a state before the liner plate is sandwiched between the first engaging portion and the second engaging portion in the liner plate binding method according to the first example of the fourth embodiment, and FIG. 15(b) is a front view showing a state after the liner plate is sandwiched between the first engaging portion and the second engaging portion in the method for binding the liner plate according to the first example of the fourth embodiment. 図１６（ａ）は、第４実施形態の第２例に係るライナープレートの緊結方法において第１係止部と第２係止部とにより挟んで緊結する前の状態を示す正面図であり、図１６（ｂ）は、第４実施形態の第２例に係るライナープレートの緊結方法において第１係止部と第２係止部とにより挟んで緊結した後の状態を示す正面図である。FIG. 16(a) is a front view showing a state before the liner plate is sandwiched between the first locking portion and the second locking portion in the liner plate binding method according to the second example of the fourth embodiment, and FIG. 16(b) is a front view showing a state after the liner plate is sandwiched between the first engaging portion and the second engaging portion in the method for binding the liner plate according to the second example of the fourth embodiment. 図１７は、第５実施形態に係る鋼製部材の緊結構造の一例を示す斜視図である。FIG. 17 is a perspective view showing an example of a binding structure for steel members according to the fifth embodiment. 図１８（ａ）は、第５実施形態に係る鋼製部材の緊結構造の一例を示す側面図であり、図１８（ｂ）は、その底面図である。FIG. 18(a) is a side view showing an example of the steel member binding structure according to the fifth embodiment, and FIG. 18(b) is a bottom view thereof. 図１９は、鋼製部材の緊結方法における貫通工程において貫通部を他端部側から貫通する前の状態を示す側面図である。FIG. 19 is a side view showing a state before the penetration part is penetrated from the other end side in the penetration step in the method for binding steel members. 図２０（ａ）は、鋼製部材の緊結方法において第１係止部と第２係止部とにより挟んで緊結する前の状態を示す側面図であり、図２０（ｂ）は、鋼製部材の緊結方法において第１係止部と第２係止部とにより挟んで緊結した後の状態を示す側面図である。FIG. 20(a) is a side view showing a state before the steel member is sandwiched between the first locking portion and the second locking portion in the method for binding the steel member, and FIG. FIG. 10 is a side view showing a state after clamping by sandwiching between the first locking portion and the second locking portion in the method of binding the members.

以下、本発明を適用した緊結金具、鋼製部材の緊結構造及び鋼製部材の緊結方法を実施するための形態について、図面を参照しながら詳細に説明する。 BEST MODE FOR CARRYING OUT THE INVENTION Embodiments for carrying out a binding fitting, a binding structure for steel members, and a method for binding steel members to which the present invention is applied will now be described in detail with reference to the drawings.

（第１実施形態）
図１は、第１実施形態に係る鋼製部材の緊結構造１００の第１例を示す斜視図である。図２（ａ）は、第１実施形態に係る鋼製部材の緊結構造１００の第１例を示す正面図であり、図２（ｂ）は、その側面図である。図３（ａ）は、第１実施形態に係る緊結金具１の第１例を示す側面図であり、図３（ｂ）は、その平面図である。 (First embodiment)
FIG. 1 is a perspective view showing a first example of a steel member binding structure 100 according to the first embodiment. FIG. 2(a) is a front view showing a first example of the steel member binding structure 100 according to the first embodiment, and FIG. 2(b) is a side view thereof. FIG. 3(a) is a side view showing a first example of the binding fitting 1 according to the first embodiment, and FIG. 3(b) is a plan view thereof.

鋼製部材の緊結構造１００では、鋼製部材としてライナープレート９が用いられる。鋼製部材の緊結構造１００は、フランジ９１に貫通孔９２が形成されるライナープレート９同士を緊結するものである。 In the steel member binding structure 100, the liner plate 9 is used as the steel member. The binding structure 100 for steel members is for binding together liner plates 9 having through holes 92 formed in flanges 91 .

ライナープレート９は、隣接する他のライナープレート９に緊結されて、筒状に構築されるものである。筒状に構築されたライナープレート９は、立坑内や地上等に設けられ、深礎杭、集水井、水中仮締切、橋脚等を構築する際の土留め等として用いられる。 The liner plate 9 is bound to other adjacent liner plates 9 to form a tubular shape. The tubular liner plate 9 is installed in a vertical shaft or on the ground, and is used as earth retaining when constructing a deep foundation pile, a drainage well, an underwater temporary cofferdam, a bridge pier, or the like.

ライナープレート９は、上下方向に波形に形成される波形鋼板と、波形鋼板の上端、下端及び両側端にそれぞれフランジ９１を有する。フランジ９１には、貫通孔９２が形成される。 The liner plate 9 has a vertically corrugated steel plate and flanges 91 at the upper end, the lower end and both side ends of the corrugated steel plate. A through hole 92 is formed in the flange 91 .

ライナープレート９は、波形鋼板の上端及び下端のフランジ９１を周方向フランジとし、波形鋼板の両側端のフランジ９１を軸方向フランジとしたとき、鋼製部材の緊結構造１００は、上下方向に隣接するライナープレート同士を緊結するものとして、周方向フランジ同士が緊結されるものであってもよい。また、鋼製部材の緊結構造１００は、側方向に隣接するライナープレート同士を緊結するものとして、軸方向フランジ同士が緊結されるものであってもよい。 When the flanges 91 at the upper and lower ends of the corrugated steel plate of the liner plate 9 are used as circumferential flanges, and the flanges 91 at both side ends of the corrugated steel plate are used as axial flanges, the steel member binding structures 100 are vertically adjacent to each other. Circumferential flanges may be fastened together to fasten the liner plates together. In addition, the steel member binding structure 100 may be one in which the axial flanges are tightened together as a structure for binding the liner plates adjacent to each other in the lateral direction.

鋼製部材の緊結構造１００は、第１ライナープレート９－１と、第２ライナープレート９－２と、緊結金具１とを備える。 A binding structure 100 for steel members includes a first liner plate 9-1, a second liner plate 9-2, and a binding fitting 1. As shown in FIG.

第１ライナープレート９－１は、第１貫通孔９２－１が形成される第１フランジ９１－１を有する。第２ライナープレート９－２は、第１ライナープレート９－１に隣接するものであって、第２貫通孔９２－２が形成される第２フランジ９１－２を有する。 The first liner plate 9-1 has a first flange 91-1 in which a first through hole 92-1 is formed. The second liner plate 9-2 is adjacent to the first liner plate 9-1 and has a second flange 91-2 in which a second through hole 92-2 is formed.

緊結金具１は、第１ライナープレート９－１と第２ライナープレート９－２とを緊結するためのものである。緊結金具１は、貫通部２と、第１係止部３とを備える。 The binding fitting 1 is for binding the first liner plate 9-1 and the second liner plate 9-2. The binding fitting 1 includes a through portion 2 and a first locking portion 3 .

貫通部２は、円柱状等に形成される鋼製等の棒状の部材が用いられる。貫通部２は、第１貫通孔９２－１と、第２貫通孔９２－２とに貫通される。貫通部２は、一端部２ａ側に第１係止部３が螺合されて設けられる。 A rod-shaped member made of steel or the like formed in a cylindrical shape or the like is used for the through portion 2 . The through portion 2 is penetrated by the first through hole 92-1 and the second through hole 92-2. The penetrating portion 2 is provided with a first locking portion 3 screwed to the one end portion 2a side.

貫通部２は、棒状の部材が少なくとも複数回屈曲されて形成される。貫通部２は、一端部２ａ側に第１係止部３が螺合されるネジ部２９と、ネジ部２９に対して直交して延びる第２係止部２２と、を有する。ネジ部２９は、円柱状に形成された外面に第１係止部３が螺合可能なネジ山又はネジ溝が形成されるものである。貫通部２は、例えば折り曲げられて形成されてもよい。貫通部２は、鍛造、鋳物等により形成されてもよい。貫通部２は、３つの棒状の部材が溶接等により接合されて形成されてもよい。ここで、直交とは、厳密な９０°ではなく、例えば±３°程度の製造上の誤差を含む。 The penetrating portion 2 is formed by bending a rod-shaped member at least a plurality of times. The through portion 2 has a threaded portion 29 to which the first locking portion 3 is screwed on the one end portion 2a side, and a second locking portion 22 extending orthogonally to the threaded portion 29 . The screw portion 29 has a cylindrical outer surface on which a screw thread or a screw groove with which the first locking portion 3 can be screwed is formed. The penetrating portion 2 may be formed by bending, for example. The penetrating portion 2 may be formed by forging, casting, or the like. The penetrating portion 2 may be formed by joining three rod-shaped members by welding or the like. Here, "perpendicular" does not mean exactly 90 degrees, but includes a manufacturing error of about ±3 degrees, for example.

貫通部２は、ネジ部２９と第２係止部２２とを繋ぐ角部が湾曲して形成されて、ネジ部２９と第２係止部２２とが直交して配置される。ネジ部２９と第２係止部２２とに沿う仮想的な面を第１曲がり面Ｌ１とする。後述する第１延伸部２３と第２延伸部２４とに沿う仮想的な面を第２曲がり面Ｌ２とする。 The penetrating portion 2 is formed with a curved corner that connects the threaded portion 29 and the second locking portion 22 , and the threaded portion 29 and the second locking portion 22 are arranged perpendicular to each other. A virtual plane along the screw portion 29 and the second locking portion 22 is defined as a first curved surface L1. A virtual plane along the first extending portion 23 and the second extending portion 24, which will be described later, is defined as a second curved surface L2.

貫通部２は、貫通部２の他端部２ｂ側に第２係止部２２を有する。第２係止部２２は、第２フランジ９１－２に平行に形成される。第２係止部２２は、例えば、円柱状に形成されるが、四角柱、六角形柱等の角柱状等に形成されてもよい。 The through portion 2 has a second locking portion 22 on the side of the other end portion 2 b of the through portion 2 . The second locking portion 22 is formed parallel to the second flange 91-2. The second locking portion 22 is formed, for example, in a columnar shape, but may be formed in a prismatic shape such as a square column, a hexagonal column, or the like.

第２係止部２２は、ネジ部２９に対して直交して延び、Ｌ字状に形成される。第２係止部２２は、ネジ部２９に繋がる第１延伸部２３と、ネジ部２９の延伸方向に直交する面内方向で第１延伸部２３から屈曲される第２延伸部２４と、を有する。第２係止部２２は、第２曲がり面Ｌ２に沿って、棒状の部材がＬ字状に折り曲げられて第１延伸部２３と第２延伸部２４とが形成されてもよい。第１延伸部２３は、一端がネジ部２９に繋がり、ネジ部２９に対して直交して延びる。第１延伸部２３は、他端が第２延伸部２４に繋がる。第２延伸部２４は、第２貫通孔９２－２の半径よりも長く形成される。第２延伸部２４は、第１延伸部２３に対して直交することが好ましいが、屈曲していれば直交でなくてもよい。 The second locking portion 22 extends orthogonally to the screw portion 29 and is formed in an L shape. The second locking portion 22 includes a first extending portion 23 connected to the threaded portion 29 and a second extending portion 24 bent from the first extending portion 23 in an in-plane direction orthogonal to the extending direction of the threaded portion 29. have. The second locking portion 22 may be formed by bending a rod-shaped member into an L shape along the second curved surface L2 to form the first extending portion 23 and the second extending portion 24 . The first extending portion 23 has one end connected to the threaded portion 29 and extends perpendicularly to the threaded portion 29 . The other end of the first extending portion 23 is connected to the second extending portion 24 . The second extending portion 24 is formed longer than the radius of the second through hole 92-2. The second extending portion 24 is preferably orthogonal to the first extending portion 23, but may not be orthogonal as long as it is bent.

第１係止部３は、貫通部２の一端部２ａ側のネジ部２９に螺合されて設けられる。第１係止部３は、第１貫通孔９２－１及び第２貫通孔９２－２よりも径大に形成される。第１係止部３は、少なくとも２辺が平行に形成されることが好ましく、例えば六角柱状等の角柱状に形成される。 The first locking portion 3 is provided by being screwed onto the screw portion 29 on the one end portion 2a side of the through portion 2 . The first locking portion 3 is formed to have a larger diameter than the first through hole 92-1 and the second through hole 92-2. It is preferable that at least two sides of the first locking portion 3 are formed in parallel, and the first locking portion 3 is formed in a prism shape such as a hexagonal prism shape, for example.

第１係止部３と第２係止部２２とは、第１フランジ９１－１と第２フランジ９１－２とを挟んで緊結するものである。第１係止部３は、第１フランジ９１－１に当接され、第２係止部２２は、第２フランジ９１－２に当接される。なお、第１係止部３は、第２フランジ９１－２に当接され、第２係止部２２は、第１フランジ９１－１に当接されてもよい。 The first locking portion 3 and the second locking portion 22 are tightly connected by sandwiching the first flange 91-1 and the second flange 91-2. The first locking portion 3 abuts against the first flange 91-1, and the second locking portion 22 abuts against the second flange 91-2. The first locking portion 3 may be brought into contact with the second flange 91-2, and the second locking portion 22 may be brought into contact with the first flange 91-1.

第１係止部３は、例えばフランジ付きナットが用いられ、ナットとしての頭部３０と、頭部３０よりも径大に形成されるフランジとしての拡径部３１と、を有する。すなわち、第１係止部３は、頭部３０と拡径部３１とが一体化される。第１係止部３は、ネジ部２９に螺合可能であることから、第１係止部３と第２係止部２２との距離Ｈ１は、適宜調整することができる。拡径部３１は、ナットの下部に付いた鍔（フランジ）部分でありワッシャーと同じ役目を果たす。第１係止部３は、フランジ付きナットのかわりに、ナットとしての頭部３０とワッシャーとしての拡径部３１とが溶接等により一体化されるものが用いられてもよい。なお、第１係止部３は、頭部３０と拡径部３１とが分離可能に構成されてもよい。 For example, a flanged nut is used as the first locking portion 3 , and has a head portion 30 as a nut and an enlarged diameter portion 31 as a flange formed to have a larger diameter than the head portion 30 . That is, in the first locking portion 3, the head portion 30 and the enlarged diameter portion 31 are integrated. Since the first locking portion 3 can be screwed onto the screw portion 29, the distance H1 between the first locking portion 3 and the second locking portion 22 can be adjusted as appropriate. The enlarged diameter portion 31 is a collar (flange) portion attached to the lower portion of the nut and plays the same role as a washer. Instead of the flanged nut, the first locking portion 3 may be formed by integrating a head portion 30 as a nut and an enlarged diameter portion 31 as a washer by welding or the like. Note that the first locking portion 3 may be configured so that the head portion 30 and the enlarged diameter portion 31 are separable.

次に、鋼製部材の緊結方法について、説明する。鋼製部材の連結方法は、フランジ９１に貫通孔９２が形成されるライナープレート９同士を緊結するものであって、緊結金具１が用いられる。鋼製部材の緊結方法では、貫通工程と、緊結工程とを備える。鋼製部材の緊結方法では、予め第１貫通孔９２－１と第２貫通孔９２－２とを対向させておく。 Next, a method for binding steel members will be described. The method of connecting the steel members is to bind together the liner plates 9 having through holes 92 formed in the flanges 91, and the binding fittings 1 are used. A method for binding steel members includes a piercing step and a binding step. In the method of binding steel members, the first through hole 92-1 and the second through hole 92-2 are opposed in advance.

図４（ａ）は、鋼製部材の緊結方法における貫通工程において貫通部２を他端部２ｂ側から貫通する前の状態を示す正面図であり、図４（ｂ）は、その側面図である。 FIG. 4(a) is a front view showing a state before the penetration portion 2 is penetrated from the other end portion 2b side in the penetration step in the steel member binding method, and FIG. 4(b) is a side view thereof. be.

貫通工程では、第１係止部３から第２係止部２２までの距離Ｈ１が、第１フランジ９１－１の厚みｔ１と第２フランジ９１－２の厚みｔ２との和よりも大きくなるように、予め第１係止部３を貫通部２の一端部２ａに螺合させておく。 In the piercing step, the distance H1 from the first locking portion 3 to the second locking portion 22 is set larger than the sum of the thickness t1 of the first flange 91-1 and the thickness t2 of the second flange 91-2. First, the first locking portion 3 is screwed to the one end portion 2a of the through portion 2 in advance.

そして、貫通工程では、第１貫通孔９２－１と第２貫通孔９２－２とに、貫通部２を他端部２ｂ側から貫通させる。このとき、貫通工程では、第１曲がり面Ｌがフランジ９１の幅の範囲内に収まるように、貫通させる。 Then, in the piercing step, the piercing portion 2 is passed through the first through hole 92-1 and the second through hole 92-2 from the other end portion 2b side. At this time, in the piercing step, the first curved surface L is pierced so that it falls within the range of the width of the flange 91 .

図５（ａ）は、ライナープレートの緊結方法において第１係止部３と第２係止部２２とにより挟んで緊結する前の状態を示す正面図である。そして、貫通工程では、第１曲がり面Ｌに沿う方向に回転させて、第１貫通孔９２－１と第２貫通孔９２－２とに、貫通部２を貫通させ、第１係止部３と第２係止部２２との間に、第１フランジ９１－１と第２フランジ９１－２とを配置する。 FIG. 5(a) is a front view showing a state before the liner plate is sandwiched between the first engaging portion 3 and the second engaging portion 22 in the binding method of the liner plate. Then, in the penetrating step, the penetrating portion 2 is caused to pass through the first through hole 92-1 and the second through hole 92-2 by rotating in the direction along the first curved surface L, and the first engaging portion 3 is rotated. and the second locking portion 22, the first flange 91-1 and the second flange 91-2 are arranged.

このとき、第１係止部３から第２係止部２２までの距離Ｈ１が、第１フランジ９１－１の厚みｔ１と第２フランジ９１－２の厚みｔ２との和よりも大きいため、貫通工程では、第１係止部３が第１フランジ９１－１に係止され、第２係止部２２が第２フランジ９１－２から離間されることとなる。 At this time, the distance H1 from the first locking portion 3 to the second locking portion 22 is greater than the sum of the thickness t1 of the first flange 91-1 and the thickness t2 of the second flange 91-2. In the process, the first locking portion 3 is locked to the first flange 91-1, and the second locking portion 22 is separated from the second flange 91-2.

また、第１係止部３から第２係止部２２までの距離Ｈ１と、第１フランジ９１－１の厚みｔ１と第２フランジ９１－２の厚みｔ２との和と、の差Δｈとし、第１係止部３の高さｈ１としたとき、差Δｈは、第１係止部３の高さｈ１よりも小さいことが好ましい。 Further, the difference Δh between the distance H1 from the first locking portion 3 to the second locking portion 22 and the sum of the thickness t1 of the first flange 91-1 and the thickness t2 of the second flange 91-2 is The difference Δh is preferably smaller than the height h1 of the first locking portion 3 when the height h1 of the first locking portion 3 is assumed.

図５（ｂ）は、ライナープレートの緊結方法において第１係止部３と第２係止部２２とにより挟んで緊結した後の状態を示す正面図である。緊結工程では、貫通部２の一端部２ａに形成されるネジ部２９に第１係止部３を螺合させる。これにより、図５（ｂ）に示すように、第２フランジ９１－２から離間された第２係止部２２が第２フランジ９１－２に近づいていき、第１係止部３から第２係止部２２までの距離Ｈ１が徐々に小さくなり、第１フランジ９１－１と第２フランジ９１－２とを第１係止部３と第２係止部２２とにより挟んで緊結する。このとき、第１延伸部２３と第２延伸部２４とが第２フランジ９１－２に接触される。 FIG. 5(b) is a front view showing a state after the liner plate is sandwiched between the first engaging portion 3 and the second engaging portion 22 and bound in the method of binding the liner plate. In the tightening step, the first locking portion 3 is screwed into the screw portion 29 formed at the one end portion 2 a of the through portion 2 . As a result, as shown in FIG. 5B, the second locking portion 22 separated from the second flange 91-2 approaches the second flange 91-2, and the first locking portion 3 moves toward the second locking portion 91-2. The distance H1 to the locking portion 22 is gradually reduced, and the first locking portion 3 and the second locking portion 22 sandwich the first flange 91-1 and the second flange 91-2 and tighten them. At this time, the first extending portion 23 and the second extending portion 24 are brought into contact with the second flange 91-2.

緊結工程では、ネジ部２９に第１係止部３を螺合させる際には、スパナ等の所定の挟持手段により第１係止部３を挟持しつつ、挟持した第１係止部３に対してネジ部２９をインパクトレンチ等で回転させることにより、ネジ部２９に第１係止部３の頭部３０を螺合してもよい。また、緊結工程では、ネジ部２９に第１係止部３の頭部３０を螺合させる際には、シノ等により貫通部２を押さえつつ、第１係止部３の頭部３０をネジ部２９に対して回転させることにより、ネジ部２９に第１係止部３を螺合してもよい。このように、第１係止部３及び貫通部２の少なくとも何れかを挟持しておくことにより、第１係止部３とネジ部２９との供回りを防止することができる。 In the tightening step, when screwing the first locking portion 3 onto the threaded portion 29, the first locking portion 3 is clamped by a predetermined clamping means such as a wrench while the clamped first locking portion 3 is tightened. On the other hand, the head portion 30 of the first locking portion 3 may be screwed into the threaded portion 29 by rotating the threaded portion 29 with an impact wrench or the like. In the tightening step, when the head portion 30 of the first locking portion 3 is screwed onto the screw portion 29, the head portion 30 of the first locking portion 3 is screwed while the through portion 2 is held down by a needle or the like. The first locking portion 3 may be screwed onto the threaded portion 29 by rotating it with respect to the portion 29 . By holding at least one of the first locking portion 3 and the penetrating portion 2 in this manner, the first locking portion 3 and the screw portion 29 can be prevented from rotating together.

また、緊結工程では、第１係止部３の頭部３０をネジ部２９に対して回転させる際には、貫通部２の他端部２ｂを第２ライナープレート９－２に当接させた上で、第１係止部３をネジ部２９に対して回転させることが好ましい。これにより、鋼製部材に当接した他端部２ｂの回転ができなくなる。このため、第１係止部３とネジ部２９との供回りを防止することができる。 Further, in the tightening step, when the head portion 30 of the first engaging portion 3 is rotated with respect to the screw portion 29, the other end portion 2b of the through portion 2 is brought into contact with the second liner plate 9-2. Above, it is preferable to rotate the first locking portion 3 with respect to the screw portion 29 . As a result, the rotation of the other end portion 2b in contact with the steel member is disabled. Therefore, co-rotation of the first locking portion 3 and the screw portion 29 can be prevented.

このようにして、緊結工程では、第１ライナープレート９－１と第２ライナープレート９－２とを、第１係止部３と第２係止部２２とにより挟んで緊結する。 In this way, in the binding step, the first liner plate 9-1 and the second liner plate 9-2 are sandwiched between the first engaging portion 3 and the second engaging portion 22 and bound.

以上により、ライナープレートの緊結方法が完了する。 This completes the method for binding the liner plates.

ライナープレートの緊結方法では、複数の緊結金具１を用いて、各々の緊結金具１について順次貫通工程を行った後、貫通工程の完了した各々の緊結金具１について一括して緊結工程を行ってもよい。また、ライナープレートの緊結方法では、複数の緊結金具１を用いて、各々の緊結金具１について貫通工程と緊結工程とを繰り返して行ってもよい。 In the liner plate binding method, a plurality of binding metal fittings 1 may be used, and after each of the binding metal fittings 1 is sequentially subjected to the piercing process, the binding process may be performed collectively for each of the binding metal fittings 1 that have completed the piercing process. good. In the liner plate binding method, a plurality of binding fittings 1 may be used, and the penetrating step and the binding step may be repeated for each binding fitting 1 .

本実施形態によれば、貫通部２は、一端部２ａに形成されるネジ部２９に第１係止部３の頭部３０が螺合される。これにより、第１フランジ９１－１と第２フランジ９１－２の厚みによらずに、第１係止部３と第２係止部２２が、第１フランジ９１－１と第２フランジ９１－２とを挟んで緊結することができる。このため、汎用性を高くすることが可能となる。 According to this embodiment, the head portion 30 of the first locking portion 3 is screwed into the screw portion 29 formed on the one end portion 2a of the penetrating portion 2 . As a result, regardless of the thickness of the first flange 91-1 and the second flange 91-2, the first locking portion 3 and the second locking portion 22 are connected to the first flange 91-1 and the second flange 91-2. 2 can be sandwiched and tied. Therefore, it is possible to increase versatility.

また、本実施形態によれば、貫通部２は、一端部２ａに形成されるネジ部２９に第１係止部３の頭部３０が螺合される。これにより、第１係止部３と第２係止部２２が、第１フランジ９１－１と第２フランジ９１－２とを挟んでより強固に緊結することができる。このため、緊結力を十分に確保することが可能となる。 Further, according to the present embodiment, the head portion 30 of the first locking portion 3 is screwed into the screw portion 29 formed on the one end portion 2a of the penetrating portion 2 . As a result, the first locking portion 3 and the second locking portion 22 can be more firmly connected with the first flange 91-1 and the second flange 91-2 interposed therebetween. Therefore, it is possible to secure a sufficient binding force.

また、本実施形態によれば、従来の金具のような挟持部をフランジに挟み込むときやライナープレートから取り外すときに必要であった、専用の冶具やハンマー等の打撃手段で叩き込む作業を省略することができる。したがって、施工における騒音を低減することが可能となる。 In addition, according to this embodiment, it is possible to omit the operation of striking with a special jig or a hammer, which is necessary when inserting a clamping portion such as a metal fitting into a flange or removing it from a liner plate. can be done. Therefore, it is possible to reduce noise during construction.

ここで、締結されたライナープレート同士に外力が作用してライナープレート同士が開くような変形が生じた場合、第１延伸部２３のみを有する緊結金具では、当該緊結金具が鋼製部材から脱落し、終局荷重において脆性的な破壊を引き起こすおそれがある。この点、本実施形態によれば、第２係止部２２は、ネジ部２９から繋がる第１延伸部２３と、ネジ部２９の延伸方向に直交する面内方向で第１延伸部２３から屈曲して延びる第２延伸部２４と、を有する。これにより、外力が作用して鋼製部材同士が開くような変形が生じた場合であっても、第２延伸部２４がライナープレートに係止された状態を維持でき、緊結金具１の脱落を抑制することができる。このため、終局荷重において脆性的な破壊を防止することが可能となる。 Here, if an external force acts on the fastened liner plates and deformation occurs such that the liner plates open, the fastening fitting having only the first extending portion 23 may fall off from the steel member. , which may cause brittle fracture at the ultimate load. In this regard, according to the present embodiment, the second locking portion 22 is bent from the first extending portion 23 in the in-plane direction orthogonal to the extending direction of the threaded portion 29 and the first extending portion 23 connected from the threaded portion 29 . and a second extension portion 24 extending inward. As a result, even if the steel members are deformed by the action of an external force, the second extending portion 24 can be kept locked to the liner plate, preventing the binding member 1 from falling off. can be suppressed. Therefore, it is possible to prevent brittle fracture under the ultimate load.

また、本実施形態によれば、貫通工程では、予めネジ部２９に第１係止部３の頭部３０を螺合させておき、緊結工程では、ネジ部２９に第１係止部３の頭部３０を更に螺合させることにより、第１フランジ９１－１と第２フランジ９１－２とを第１係止部３と第２係止部２２とにより挟んで緊結する。これにより、従来のボルトによりライナープレート同士を接合する際には必要であった、ボルトにナットを一から螺着させる作業を省略することができる。このため、施工時間を短縮することが可能となる。 Further, according to the present embodiment, the threaded portion 29 is screwed in advance with the head portion 30 of the first locking portion 3 in the piercing step, and the first locking portion 3 is threaded into the threaded portion 29 in the tightening step. By further screwing the head portion 30, the first flange 91-1 and the second flange 91-2 are sandwiched between the first locking portion 3 and the second locking portion 22 and tightly connected. As a result, it is possible to omit the operation of screwing nuts onto the bolts from scratch, which is necessary when joining liner plates with conventional bolts. Therefore, construction time can be shortened.

本実施形態によれば、緊結工程では、ネジ部２９に第１係止部３の頭部３０を更に螺合させることにより、第１フランジ９１－１と第２フランジ９１－２とを第１係止部３と第２係止部２２とにより挟んで緊結する。これにより、第１フランジ９１－１と第２フランジ９１－２の厚みによらずに、第１係止部３と第２係止部２２が、第１フランジ９１－１と第２フランジ９１－２とを挟んで緊結することができる。このため、汎用性を高くすることが可能となる。 According to the present embodiment, in the tightening step, the screw portion 29 is further screwed with the head portion 30 of the first locking portion 3, thereby connecting the first flange 91-1 and the second flange 91-2 to the first flange. It is sandwiched between the locking portion 3 and the second locking portion 22 and tightly bound. As a result, regardless of the thickness of the first flange 91-1 and the second flange 91-2, the first locking portion 3 and the second locking portion 22 are connected to the first flange 91-1 and the second flange 91-2. 2 can be sandwiched and tied. Therefore, it is possible to increase versatility.

本実施形態によれば、第２係止部２２が第１貫通孔９２－１と第２貫通孔９２－２とに貫通可能である。これにより、第１ライナープレート９－１と第２ライナープレート９－２とを緊結したとき、フランジ９１の内側に形成される空間に緊結金具１を突出させることなく、フランジ９１の幅の範囲内に緊結金具１を収めることができる。このため、筒状に緊結した複数のライナープレート９に必要な設計径を確保することができ、施工費用を低減させることが可能となる。 According to this embodiment, the second locking portion 22 can pass through the first through hole 92-1 and the second through hole 92-2. As a result, when the first liner plate 9-1 and the second liner plate 9-2 are bound together, the binding fitting 1 does not protrude into the space formed inside the flange 91, and is within the width of the flange 91. The binding metal fitting 1 can be stored in. For this reason, it is possible to secure the necessary design diameter for the plurality of liner plates 9 that are tightly bound in a cylindrical shape, and it is possible to reduce the construction cost.

さらに、本実施形態によれば、差Δｈは、第１係止部３の高さｈ１よりも小さい。これにより、第１係止部３と第２係止部２２が第１フランジ９１－１と第２フランジ９１－２とを挟んで緊結するのに必要な距離を、第１係止部３の高さｈ１より小さくすることができる。このため、第１係止部３と第２係止部２２が、第１フランジ９１－１と第２フランジ９１－２とを挟んで緊結する作業を容易に行うことができ、施工時間を短縮することが可能となる。 Furthermore, according to this embodiment, the difference Δh is smaller than the height h1 of the first locking portion 3 . As a result, the distance necessary for tightening the first locking portion 3 and the second locking portion 22 with the first flange 91-1 and the second flange 91-2 interposed between the first locking portion 3 and the second locking portion 22 is It can be smaller than the height h1. Therefore, the first locking portion 3 and the second locking portion 22 can be easily connected by sandwiching the first flange 91-1 and the second flange 91-2, thereby shortening the construction time. It becomes possible to

また、本実施形態によれば、複数の緊結金具１を用いて、各々の緊結金具１に対して貫通工程を行った後、各々の緊結金具１に対して緊結工程を行う。これにより、複数の緊結金具１を用いて鋼製部材を緊結する際に、インパクトレンチ等で緊結金具１を緊結する際の段取り替えの時間を短縮することができる。このため、施工時間の大幅に短縮することが可能となる。 Further, according to this embodiment, a plurality of binding metal fittings 1 are used, and after each of the binding metal fittings 1 is subjected to the piercing process, each of the binding metal fittings 1 is subjected to the binding process. As a result, it is possible to shorten the setup change time required for binding the steel members using a plurality of binding fittings 1 with an impact wrench or the like. Therefore, the construction time can be greatly shortened.

図６（ａ）は、第１実施形態に係る緊結金具１の第２例を示す正面図であり、図６（ｂ）は、その側面図である。 FIG. 6(a) is a front view showing a second example of the binding fitting 1 according to the first embodiment, and FIG. 6(b) is a side view thereof.

この緊結金具１では、貫通部２は、ネジ部２９と第２係止部２２とを繋ぐ角部が直角に形成されて、ネジ部２９と第２係止部２２とが直交して配置される。かかる場合であっても、上述した作用効果を発揮させることが可能となる。 In this binding fitting 1, the penetrating portion 2 has a right-angled corner connecting the threaded portion 29 and the second locking portion 22, and the threaded portion 29 and the second locking portion 22 are arranged orthogonally. be. Even in such a case, it is possible to exhibit the above-described effects.

図７（ａ）は、第１実施形態に係る鋼製部材の緊結構造１００の第２例を示す正面図であり、図７（ｂ）は、その側面図である。 FIG. 7(a) is a front view showing a second example of the steel member binding structure 100 according to the first embodiment, and FIG. 7(b) is a side view thereof.

本例に係るライナープレートの緊結構造１００では、第１ライナープレート９－１と、第２ライナープレート９－２と、緊結金具１と、補強リング７と、を備える。 The liner plate binding structure 100 according to this example includes a first liner plate 9 - 1 , a second liner plate 9 - 2 , a binding fitting 1 , and a reinforcing ring 7 .

補強リング７は、第１ライナープレート９－１と第２ライナープレートの間に設けられるものであって、緊結したライナープレート同士を補強するためのものである。補強リング７は、例えばＨ形鋼が用いられる。 The reinforcement ring 7 is provided between the first liner plate 9-1 and the second liner plate, and serves to reinforce the liner plates that are tied together. H-section steel, for example, is used for the reinforcing ring 7 .

補強リング７は、第１フランジ９１－１と第２フランジ９１－２との間に配置される補強ウェブ７１と、補強ウェブ７１の両端部に設けられる一対の補強フランジ７２とを有する。補強フランジ７２は、フランジ９１の内側端部９１ａよりも内側に配置されることとなる。 The reinforcing ring 7 has a reinforcing web 71 arranged between the first flange 91-1 and the second flange 91-2, and a pair of reinforcing flanges 72 provided at both ends of the reinforcing web 71. As shown in FIG. The reinforcing flange 72 is arranged inside the inner end portion 91 a of the flange 91 .

上記したように、本実施形態によれば、第２係止部２２が第１貫通孔９２－１と第２貫通孔９２－２とに貫通可能である。これにより、第１ライナープレート９－１と第２ライナープレート９－２とを緊結したとき、フランジ９１の内側に形成される空間に緊結金具１を突出させることなく、フランジ９１の幅の範囲内に緊結金具１を収めることができる。 As described above, according to this embodiment, the second locking portion 22 can pass through the first through hole 92-1 and the second through hole 92-2. As a result, when the first liner plate 9-1 and the second liner plate 9-2 are bound together, the binding fitting 1 does not protrude into the space formed inside the flange 91, and is within the width of the flange 91. The binding metal fitting 1 can be stored in.

このため、緊結金具１に阻害されずに、ライナープレート９の内側に補強フランジ７２を有する補強リング７を用いることができ、補強リング７を用いて緊結したライナープレートの補強を行うことができる。 Therefore, the reinforcing ring 7 having the reinforcing flange 72 inside the liner plate 9 can be used without being hindered by the binding fitting 1, and the liner plate that is bound using the reinforcing ring 7 can be reinforced.

（第２実施形態）
図８は、第２実施形態に係る鋼製部材の緊結構造１００の一例を示す斜視図である。図９（ａ）は、第２実施形態に係る鋼製部材の緊結構造１００の一例を示す正面図であり、図９（ｂ）は、その側面図である。 (Second embodiment)
FIG. 8 is a perspective view showing an example of the steel member binding structure 100 according to the second embodiment. FIG. 9(a) is a front view showing an example of the steel member binding structure 100 according to the second embodiment, and FIG. 9(b) is a side view thereof.

鋼製部材の緊結構造１００では、鋼製部材としてコルゲート鋼板９０が用いられる。鋼製部材の緊結構造１００は、端部に貫通孔９２が形成されるコルゲート鋼板９０同士を緊結するものである。 In the steel member binding structure 100, a corrugated steel plate 90 is used as the steel member. The steel member binding structure 100 binds together corrugated steel plates 90 having through holes 92 formed at their ends.

コルゲート鋼板９０は、隣接する他のコルゲート鋼板９０に緊結されて、断面Ｕ字状等に構築されるものである。Ｕ字状に構築されたコルゲート鋼板９０は、地面等に設けられ、水路等として用いられる。 The corrugated steel plate 90 is tightly bound to other adjacent corrugated steel plates 90 to form a U-shaped cross section or the like. The U-shaped corrugated steel plate 90 is provided on the ground or the like and used as a waterway or the like.

コルゲート鋼板９０は、山部９４と谷部９５が繰り返し形成される波形に形成され、山部９４の端部に貫通孔９２が形成される。複数のコルゲート鋼板９０は、端部同士が重ね合わされて、緊結金具１により互いに緊結される。なお、第２実施形態では、山部９４に貫通孔９２が形成される形態について説明するが、谷部９５に貫通孔９２が形成されて、緊結金具１により緊結されてもよい。 The corrugated steel plate 90 is formed into a corrugated shape in which crests 94 and troughs 95 are repeatedly formed, and through holes 92 are formed at the ends of the crests 94 . A plurality of corrugated steel plates 90 are overlapped at their ends and bound together by the binding fittings 1 . In the second embodiment, a form in which the through holes 92 are formed in the peak portions 94 will be described, but the through holes 92 may be formed in the valley portions 95 and tied by the binding fitting 1 .

鋼製部材の緊結構造１００は、第１コルゲート鋼板９０－１と、第２コルゲート鋼板９０－２と、緊結金具１とを備える。 A steel member binding structure 100 includes a first corrugated steel plate 90-1, a second corrugated steel plate 90-2, and a binding metal fitting 1. As shown in FIG.

次に、鋼製部材の緊結方法について、説明する。鋼製部材の連結方法は、貫通孔９２が形成されるコルゲート鋼板９０同士を緊結するものであって、緊結金具１が用いられる。鋼製部材の緊結方法では、貫通工程と、緊結工程とを備える。鋼製部材の緊結方法では、予め第１貫通孔９２－１と第２貫通孔９２－２とを対向させておく。 Next, a method for binding steel members will be described. The method of connecting the steel members is to bind together the corrugated steel plates 90 having the through holes 92 formed therein, and the binding fitting 1 is used. A method for binding steel members includes a piercing step and a binding step. In the method of binding steel members, the first through hole 92-1 and the second through hole 92-2 are opposed in advance.

図１０（ａ）は、鋼製部材の緊結方法における貫通工程において貫通部２を他端部２ｂ側から貫通する前の状態を示す正面図であり、図１０（ｂ）は、その側面図である。 Fig. 10(a) is a front view showing a state before the penetrating portion 2 is penetrated from the other end portion 2b side in the penetrating step in the steel member binding method, and Fig. 10(b) is a side view thereof. be.

貫通工程では、第１係止部３から第２係止部２２までの距離Ｈ１が、第１コルゲート鋼板９０－１の厚みｔ１と第２コルゲート鋼板９０－２の厚みｔ２との和よりも大きくなるように、予め第１係止部３の頭部３０を貫通部２の一端部２ａに螺合させておく。 In the piercing step, the distance H1 from the first locking portion 3 to the second locking portion 22 is greater than the sum of the thickness t1 of the first corrugated steel plate 90-1 and the thickness t2 of the second corrugated steel plate 90-2. The head portion 30 of the first engaging portion 3 is screwed to the one end portion 2a of the penetrating portion 2 in advance so as to obtain the above.

そして、貫通工程では、第１貫通孔９２－１と第２貫通孔９２－２とに、貫通部２を他端部２ｂ側から貫通させる。 Then, in the piercing step, the piercing portion 2 is passed through the first through hole 92-1 and the second through hole 92-2 from the other end portion 2b side.

図１１（ａ）は、鋼製部材の緊結方法において第１係止部３と第２係止部２２とにより挟んで緊結する前の状態を示す正面図である。そして、貫通工程では、第１曲がり面Ｌに沿う方向に回転させて、第１貫通孔９２－１と第２貫通孔９２－２とに、貫通部２を貫通させ、第１係止部３と第２係止部２２との間に、第１コルゲート鋼板９０－１と第２コルゲート鋼板９０－２とを配置する。 FIG. 11(a) is a front view showing a state before clamping by sandwiching between the first engaging portion 3 and the second engaging portion 22 in the method for binding steel members. Then, in the penetrating step, the penetrating portion 2 is caused to pass through the first through hole 92-1 and the second through hole 92-2 by rotating in the direction along the first curved surface L, and the first engaging portion 3 is rotated. and the second locking portion 22, a first corrugated steel plate 90-1 and a second corrugated steel plate 90-2 are arranged.

このとき、第１係止部３から第２係止部２２までの距離Ｈ１が、第１フランジ９１－１の厚みｔ１と第２フランジ９１－２の厚みｔ２との和よりも大きいため、貫通工程では、第１係止部３が第１コルゲート鋼板９０－１に係止され、第２係止部２２が第２コルゲート鋼板９０－２から離間されることとなる。 At this time, the distance H1 from the first locking portion 3 to the second locking portion 22 is greater than the sum of the thickness t1 of the first flange 91-1 and the thickness t2 of the second flange 91-2. In the process, the first locking portion 3 is locked to the first corrugated steel plate 90-1, and the second locking portion 22 is separated from the second corrugated steel plate 90-2.

また、第１係止部３から第２係止部２２までの距離Ｈ１と、第１コルゲート鋼板９０－１の厚みｔ１と第２コルゲート鋼板９０－２の厚みｔ２との和と、の差Δｈとし、第１係止部３の高さｈ１としたとき、差Δｈは、第１係止部３の高さｈ１よりも小さいことが好ましい。 Further, the difference Δh between the distance H1 from the first locking portion 3 to the second locking portion 22 and the sum of the thickness t1 of the first corrugated steel plate 90-1 and the thickness t2 of the second corrugated steel plate 90-2 and the height h1 of the first engaging portion 3, the difference Δh is preferably smaller than the height h1 of the first engaging portion 3.

図１１（ｂ）は、鋼製部材の緊結方法において第１係止部３と第２係止部２２とにより挟んで緊結した後の状態を示す正面図である。緊結工程では、貫通部２の一端部２ａに形成されるネジ部２９に第１係止部３の頭部３０を螺合させる。これにより、図１１（ｂ）に示すように、第２コルゲート鋼板９０－２から離間された第２係止部２２が第２コルゲート鋼板９０－２に近づいていき、第１係止部３から第２係止部２２までの距離Ｈ１が徐々に小さくなり、第１コルゲート鋼板９０－１と第２コルゲート鋼板９０－２とを第１係止部３と第２係止部２２とにより挟んで緊結する。 FIG. 11(b) is a front view showing a state after the first locking portion 3 and the second locking portion 22 sandwich and tighten in the steel member binding method. In the tightening step, the head portion 30 of the first locking portion 3 is screwed into the screw portion 29 formed at the one end portion 2 a of the through portion 2 . As a result, as shown in FIG. 11(b), the second locking portion 22 separated from the second corrugated steel plate 90-2 approaches the second corrugated steel plate 90-2, and the first locking portion 3 The distance H1 to the second locking portion 22 gradually decreases, and the first corrugated steel plate 90-1 and the second corrugated steel plate 90-2 are sandwiched between the first locking portion 3 and the second locking portion 22. be tight

このようにして、緊結工程では、第１コルゲート鋼板９０－１と第２コルゲート鋼板９０－２とを、第１係止部３と第２係止部２２とにより挟んで緊結する。 In this manner, in the binding step, the first corrugated steel plate 90-1 and the second corrugated steel plate 90-2 are sandwiched between the first locking portion 3 and the second locking portion 22 and are bound together.

本実施形態によれば、貫通部２は、一端部２ａに形成されるネジ部２９に第１係止部３が螺合される。これにより、第１コルゲート鋼板９０－１と第２コルゲート鋼板９０－２の厚みによらずに、第１係止部３と第２係止部２２が、第１コルゲート鋼板９０－１と第２コルゲート鋼板９０－２とを挟んで緊結することができる。このため、汎用性を高くすることが可能となる。 According to the present embodiment, the penetrating portion 2 has the first locking portion 3 screwed onto the screw portion 29 formed at the one end portion 2a. As a result, regardless of the thicknesses of the first corrugated steel plate 90-1 and the second corrugated steel plate 90-2, the first locking portion 3 and the second locking portion 22 are connected to the first corrugated steel plate 90-1 and the second corrugated steel plate 90-2. It can be tied with the corrugated steel plate 90-2 sandwiched therebetween. Therefore, it is possible to increase versatility.

また、本実施形態によれば、貫通部２は、一端部２ａに形成されるネジ部２９に第１係止部３が螺合される。これにより、第１係止部３と第２係止部２２が、第１コルゲート鋼板９０－１と第２コルゲート鋼板９０－２とを挟んでより強固に緊結することができる。このため、緊結力を十分に確保することが可能となる。 Further, according to the present embodiment, the penetrating portion 2 has the first locking portion 3 screwed onto the screw portion 29 formed at the one end portion 2a. As a result, the first locking portion 3 and the second locking portion 22 can be more firmly bound with the first corrugated steel plate 90-1 and the second corrugated steel plate 90-2 interposed therebetween. Therefore, it is possible to secure a sufficient binding force.

また、本実施形態によれば、従来の金具のような挟持部をフランジに挟み込むときやライナープレートから取り外すときに必要であった、専用の冶具やハンマー等の打撃手段で叩き込む作業を省略することができる。したがって、施工における騒音を低減することが可能となる。 In addition, according to this embodiment, it is possible to omit the operation of striking with a special jig or a hammer, which is necessary when inserting a clamping portion such as a metal fitting into a flange or removing it from a liner plate. can be done. Therefore, it is possible to reduce noise during construction.

本実施形態によれば、第２係止部２２は、ネジ部２９から繋がる第１延伸部２３と、ネジ部２９の延伸方向に直交する面内方向で第１延伸部２３から屈曲して延びる第２延伸部２４と、を有する。これにより、外力が作用してコルゲート鋼板同士が開くような変形が生じた場合であっても、第２延伸部２４がコルゲート鋼板に係止された状態を維持でき、緊結金具１の脱落を抑制することができる。このため、終局荷重において脆性的な破壊を防止することが可能となる。 According to the present embodiment, the second locking portion 22 extends from the first extending portion 23 connected to the threaded portion 29 and bent from the first extending portion 23 in the in-plane direction orthogonal to the extending direction of the threaded portion 29 . and a second extending portion 24 . As a result, even when an external force acts and deformation occurs such that the corrugated steel plates open each other, the state in which the second extending portion 24 is locked to the corrugated steel plates can be maintained, and the tying fitting 1 is prevented from falling off. can do. Therefore, it is possible to prevent brittle fracture under the ultimate load.

また、本実施形態によれば、貫通工程では、予めネジ部２９に第１係止部３を螺合させておき、緊結工程では、ネジ部２９に第１係止部３を更に螺合させることにより、第１コルゲート鋼板９０－１と第２コルゲート鋼板９０－２とを、第１係止部３と第２係止部２２とにより挟んで緊結する。これにより、従来のボルトによりコルゲート鋼板同士を接合する際には必要であった、ボルトにナットを一から螺着させる作業を省略することができる。このため、施工時間を短縮することが可能となる。 Further, according to the present embodiment, the threaded portion 29 is screwed into the first locking portion 3 in advance in the penetrating step, and the first locking portion 3 is further screwed into the threaded portion 29 in the tightening step. As a result, the first corrugated steel plate 90-1 and the second corrugated steel plate 90-2 are sandwiched between the first locking portion 3 and the second locking portion 22 and tightly bound. As a result, it is possible to omit the work of screwing a nut onto the bolt from scratch, which is necessary when joining corrugated steel plates with a conventional bolt. Therefore, construction time can be shortened.

本実施形態によれば、緊結工程では、ネジ部２９に第１係止部３を更に螺合させることにより、第１コルゲート鋼板－１と第２コルゲート鋼板９０－２とを、第１係止部３と第２係止部２２とにより挟んで緊結する。これにより、第１コルゲート鋼板９０－１と第２コルゲート鋼板９０－２の厚みによらずに、第１係止部３と第２係止部２２が、第１コルゲート鋼板９０－１と第２コルゲート鋼板９０－２とを挟んで緊結することができる。このため、汎用性を高くすることが可能となる。 According to the present embodiment, in the binding step, the first locking portion 3 is further screwed onto the threaded portion 29 so that the first corrugated steel plate-1 and the second corrugated steel plate 90-2 are connected to each other by the first locking. It is sandwiched between the portion 3 and the second locking portion 22 and tied. As a result, regardless of the thicknesses of the first corrugated steel plate 90-1 and the second corrugated steel plate 90-2, the first locking portion 3 and the second locking portion 22 are connected to the first corrugated steel plate 90-1 and the second corrugated steel plate 90-2. It can be tied with the corrugated steel plate 90-2 sandwiched therebetween. Therefore, it is possible to increase versatility.

さらに、本実施形態によれば、差Δｈは、第１係止部３の高さｈ１よりも小さい。これにより、第１係止部３と第２係止部２２が第１コルゲート鋼板９０－１と第２コルゲート鋼板９０－２とを挟んで緊結するのに必要な距離を、第１係止部３の高さｈ１より小さくすることができる。このため、第１係止部３と第２係止部２２が、第１コルゲート鋼板９０－１と第２コルゲート鋼板９０－２とを挟んで緊結する作業を容易に行うことができ、施工時間を短縮することが可能となる。 Furthermore, according to this embodiment, the difference Δh is smaller than the height h1 of the first locking portion 3 . As a result, the distance required for tightening the first locking portion 3 and the second locking portion 22 with the first corrugated steel plate 90-1 and the second corrugated steel plate 90-2 sandwiched between the first locking portion 3 can be smaller than the height h1. Therefore, the first locking portion 3 and the second locking portion 22 can be easily tightened by sandwiching the first corrugated steel plate 90-1 and the second corrugated steel plate 90-2. can be shortened.

さらに、本実施形態によれば、第２貫通孔９２－２が鋼製部材の山部９４に形成される。これにより、貫通部２の他端部２ｂを鋼製部材に当接させた上で、第１係止部３をネジ部２９に対して回転させることができる。このため、鋼製部材に当接した他端部２ｂの回転ができなくなるため、第１係止部３とネジ部２９との供回りを防止することができる。 Furthermore, according to this embodiment, the second through hole 92-2 is formed in the peak portion 94 of the steel member. As a result, the first locking portion 3 can be rotated with respect to the screw portion 29 while the other end portion 2b of the through portion 2 is brought into contact with the steel member. Therefore, since the other end portion 2b in contact with the steel member cannot be rotated, the first engaging portion 3 and the screw portion 29 can be prevented from rotating together.

本実施形態によれば、頭部３０と拡径部３１とが一体化される。これにより、頭部３０と拡径部３１とが分離される場合よりもネジ部２９の軸心Ｃからの距離を長く確保することができる。このため、ネジ部２９の軸心Ｃが傾くのを抑制することができ、第１コルゲート鋼板９０－１と第２コルゲート鋼板９０－２との固定度の低下を抑制することが可能となる。 According to this embodiment, the head portion 30 and the enlarged diameter portion 31 are integrated. As a result, a longer distance from the axis C of the screw portion 29 can be ensured than when the head portion 30 and the enlarged diameter portion 31 are separated. Therefore, it is possible to prevent the axial center C of the threaded portion 29 from being inclined, and it is possible to prevent deterioration in the fixing degree between the first corrugated steel plate 90-1 and the second corrugated steel plate 90-2.

（第３実施形態）
図１２は緊結時にネジ部２９の軸心Ｃが傾く状態を示す正面図である。図５（ｂ）の緊結状態では、第２係止部２２が第２フランジ９１－２と平行になることで、第１フランジ９１－１と第２フランジ９１－２とを強固に固定することが可能となる。しかし、図５（ｂ）の状態からさらに緊結が増すと、図１３に示すように、貫通部２が過度に引き抜かれようとし、ネジ部２９の軸心Ｃが傾く状態となる場合がある。このとき、第１フランジ９１－１と第２フランジ９１－２との固定度が低下する可能性があり好ましくない。図５（ｂ）の状態から図１３の状態に移行する際、図５（ｂ）に示す第２貫通孔９２－２と第２係止部２２の直交部分との接触点Ａ１が、図１３では他端部２ｂ側に移動している（接触点Ａ１→Ａ１’）。この移動を抑制することができれば、ネジ部２９の軸心Ｃも傾かない。以下の第３実施形態と第４実施形態では、にその対策を示す実施例を述べる。 (Third embodiment)
FIG. 12 is a front view showing a state in which the axial center C of the screw portion 29 is tilted during tightening. In the tightened state of FIG. 5(b), the second locking portion 22 is parallel to the second flange 91-2, thereby firmly fixing the first flange 91-1 and the second flange 91-2. becomes possible. However, if the tightening is further increased from the state of FIG. 5(b), as shown in FIG. 13, the penetrating portion 2 tends to be pulled out excessively, and the axial center C of the screw portion 29 may be tilted. At this time, the degree of fixation between the first flange 91-1 and the second flange 91-2 may deteriorate, which is not preferable. 5B to FIG. 13, the contact point A1 between the second through hole 92-2 shown in FIG. Then, it moves to the other end 2b side (contact point A1→A1'). If this movement can be suppressed, the axial center C of the screw portion 29 will not be tilted either. In the following third and fourth embodiments, examples showing countermeasures will be described.

図１３（ａ）は、第３実施形態の第１例に係るライナープレートの緊結方法において第１係止部と第２係止部とにより挟んで緊結する前の状態を示す正面図であり、図１３（ｂ）は、第３実施形態の第１例に係るライナープレートの緊結方法において第１係止部と第２係止部とにより挟んで緊結した後の状態を示す正面図である。図１４（ａ）は、第３実施形態の第２例に係るライナープレートの緊結方法において第１係止部と第２係止部とにより挟んで緊結する前の状態を示す正面図であり、図１４（ｂ）は、第３実施形態の第２例に係るライナープレートの緊結方法において第１係止部と第２係止部とにより挟んで緊結した後の状態を示す正面図である。 FIG. 13(a) is a front view showing a state before the liner plate is pinched and tied between the first locking portion and the second locking portion in the liner plate binding method according to the first example of the third embodiment, FIG. 13(b) is a front view showing a state after the liner plate is sandwiched between the first engaging portion and the second engaging portion in the method for binding the liner plate according to the first example of the third embodiment. FIG. 14(a) is a front view showing a state before the liner plate is sandwiched between the first engaging portion and the second engaging portion in the liner plate binding method according to the second example of the third embodiment, and FIG. 14(b) is a front view showing a state after the liner plate is sandwiched between the first engaging portion and the second engaging portion in the method for binding the liner plate according to the second example of the third embodiment.

第３実施形態に係る緊結金具１では、第２係止部２２は、第２フランジ９１－２に接触される第１突起部２５を有する。第１突起部２５は、第２フランジ９１－２の第２貫通孔９２－２に近接した位置に設けられることが好ましい。 In the binding fitting 1 according to the third embodiment, the second locking portion 22 has the first protrusion 25 that contacts the second flange 91-2. The first protrusion 25 is preferably provided at a position close to the second through hole 92-2 of the second flange 91-2.

図１３に示すように、第１突起部２５は、ネジ山等のねじ切り加工により形成される。このとき、貫通部２は、例えば、全ネジボルトをＬ字状に折り曲げ加工されたものが用いられてもよい。 As shown in FIG. 13, the first projecting portion 25 is formed by thread cutting such as screw threads. At this time, the penetrating portion 2 may be formed by bending a fully threaded bolt into an L shape, for example.

図１４に示すように、貫通部２は、直線状の棒状部材をＬ字状に折り曲げ加工されたものが用いられ、この第１突起部２５は、当該棒状部材をＬ字状に折り曲げ加工することによって折り曲げの内側に形成される突起である。第１突起部２５は、鋼片等の突起状に形成される突起物が第２係止部２２に取り付けられて形成されてもよい。 As shown in FIG. 14, the penetrating portion 2 is formed by bending a linear rod-shaped member into an L-shape, and the first protrusion 25 is formed by bending the rod-shaped member into an L-shape. It is a protrusion formed on the inner side of the fold by The first projecting portion 25 may be formed by attaching a projecting object such as a piece of steel to the second engaging portion 22 .

第３実施形態に係る鋼製部材の緊結方法において、貫通工程では、図１３（ａ）及び図１４（ａ）に示すように、第１曲がり面Ｌに沿う方向に回転させて、第１貫通孔９２－１と第２貫通孔９２－２とに、貫通部２の角部２８を貫通させ、第１係止部３と第２係止部２２との間に、第１フランジ９１－１と第２フランジ９１－２とを配置する。 In the steel member binding method according to the third embodiment, in the penetrating step, as shown in FIGS. 13A and 14A, the first penetrating The corner portion 28 of the through portion 2 is passed through the hole 92-1 and the second through hole 92-2, and the first flange 91-1 is provided between the first locking portion 3 and the second locking portion 22. and the second flange 91-2.

このとき、第１係止部３から第２係止部２２までの距離Ｈ１が、第１フランジ９１－１の厚みｔ１と第２フランジ９１－２の厚みｔ２との和よりも大きいため、貫通工程では、第１係止部３が第１フランジ９１－１に係止され、第２係止部２２の第１突起部２５が第２フランジ９１－２から離間されることとなる。 At this time, the distance H1 from the first locking portion 3 to the second locking portion 22 is greater than the sum of the thickness t1 of the first flange 91-1 and the thickness t2 of the second flange 91-2. In the process, the first locking portion 3 is locked to the first flange 91-1, and the first projecting portion 25 of the second locking portion 22 is separated from the second flange 91-2.

次に、緊結工程では、貫通部２の一端部２ａに形成されるネジ部２９に第１係止部３を螺合させる。これにより、図１３（ｂ）及び図１４（ｂ）に示すように、第２フランジ９１－２から離間された第２係止部２２の第１突起部２５が第２フランジ９１－２に近づいていき、第１係止部３から第２係止部２２までの距離Ｈ１が徐々に小さくなり、第１フランジ９１－１と第２フランジ９１－２とを第１係止部３と第２係止部２２の第１突起部２５とにより挟んで緊結する。このとき、第１突起部２５を第２フランジ９１－２に食い込ませることができる。 Next, in the tightening step, the first locking portion 3 is screwed into the threaded portion 29 formed at the one end portion 2 a of the through portion 2 . As a result, as shown in FIGS. 13(b) and 14(b), the first protrusion 25 of the second locking portion 22 separated from the second flange 91-2 approaches the second flange 91-2. As a result, the distance H1 from the first locking portion 3 to the second locking portion 22 gradually decreases, and the first locking portion 3 and the second locking portion 91-2 become closer to each other. It is sandwiched between the locking portion 22 and the first projecting portion 25 and tightly bound. At this time, the first protrusion 25 can be bitten into the second flange 91-2.

本実施形態によれば、第２係止部２２は、第２フランジ９１－２に接触される面に第１突起部２５を有する。これにより、第１フランジ９１－１と第２フランジ９１－２とを第１係止部３と第２係止部２２の第１突起部２５とにより挟んで緊結したとき、第１突起部２５を第２フランジ９１－２に食い込ませることができる。これにより、第２係止部２２が第２フランジ９１－２に対してずれるのを抑制することができる。その結果、ネジ部２９の軸心Ｃの傾きが抑制され、第１フランジ９１－１と第２フランジ９１－２とを強固に固定することができる。 According to this embodiment, the second locking portion 22 has the first protrusion 25 on the surface that contacts the second flange 91-2. As a result, when the first flange 91-1 and the second flange 91-2 are sandwiched between the first engaging portion 3 and the first projecting portion 25 of the second engaging portion 22, the first projecting portion 25 can be made to bite into the second flange 91-2. Accordingly, it is possible to prevent the second locking portion 22 from being displaced with respect to the second flange 91-2. As a result, the inclination of the axial center C of the screw portion 29 is suppressed, and the first flange 91-1 and the second flange 91-2 can be firmly fixed.

ここで、過度な緊結等により、緊結金具１が引き抜かれようとした場合、第２フランジ９１－２の第２貫通孔９２－２の角部付近が、最も貫通部２からの接触力を受ける。この点、本実施形態によれば、第１突起部２５は、第２フランジ９１－２の第２貫通孔９２－２に近接した位置に設けられる。これにより、第２係止部２２が第２フランジ９１－２に対してずれるのを効果的に抑制することができる。このため、ネジ部２９の軸心Ｃの傾きが抑制され、第１フランジ９１－１と第２フランジ９１－２とを更に強固に固定することができる。 Here, when the binding fitting 1 is about to be pulled out due to excessive binding or the like, the vicinity of the corner of the second through-hole 92-2 of the second flange 91-2 receives the contact force from the through-hole 2 the most. . In this respect, according to the present embodiment, the first protrusion 25 is provided at a position close to the second through hole 92-2 of the second flange 91-2. As a result, it is possible to effectively prevent the second locking portion 22 from being displaced with respect to the second flange 91-2. Therefore, the inclination of the axial center C of the screw portion 29 is suppressed, and the first flange 91-1 and the second flange 91-2 can be fixed more firmly.

（第４実施形態）
図１５（ａ）は、第４実施形態の第１例に係るライナープレートの緊結方法において第１係止部と第２係止部とにより挟んで緊結する前の状態を示す正面図であり、図１５（ｂ）は、第４実施形態の第１例に係るライナープレートの緊結方法において第１係止部と第２係止部とにより挟んで緊結した後の状態を示す正面図である。図１６（ａ）は、第４実施形態の第２例に係るライナープレートの緊結方法において第１係止部と第２係止部とにより挟んで緊結する前の状態を示す正面図であり、図１６（ｂ）は、第４実施形態の第２例に係るライナープレートの緊結方法において第１係止部と第２係止部とにより挟んで緊結した後の状態を示す正面図である。 (Fourth embodiment)
FIG. 15(a) is a front view showing a state before the liner plate is sandwiched between the first engaging portion and the second engaging portion in the liner plate binding method according to the first example of the fourth embodiment, and FIG. 15(b) is a front view showing a state after the liner plate is sandwiched between the first engaging portion and the second engaging portion in the method for binding the liner plate according to the first example of the fourth embodiment. FIG. 16(a) is a front view showing a state before the liner plate is sandwiched between the first locking portion and the second locking portion in the liner plate binding method according to the second example of the fourth embodiment, and FIG. 16(b) is a front view showing a state after the liner plate is sandwiched between the first engaging portion and the second engaging portion in the method for binding the liner plate according to the second example of the fourth embodiment.

第４実施形態に係る緊結金具１では、第２フランジ９１－２は、第２係止部２２に接触される第２突起部９６を有する。第２突起部９６は、第２フランジ９１－２の第２貫通孔９２－２に近接した位置に設けられることが好ましい。 In the binding fitting 1 according to the fourth embodiment, the second flange 91-2 has the second projecting portion 96 that contacts the second locking portion 22. As shown in FIG. The second protrusion 96 is preferably provided at a position close to the second through hole 92-2 of the second flange 91-2.

図１５に示すように、第２突起部９６は、第２貫通孔９２－２の周端に形成される突起物であり、バーリング加工により形成される。 As shown in FIG. 15, the second protrusion 96 is a protrusion formed at the peripheral end of the second through hole 92-2, and is formed by burring.

図１６に示すように、第２突起部９６は、環状に形成される環状体が第２フランジ９１－２に溶接等により取り付けられたものであってもよい。 As shown in FIG. 16, the second projecting portion 96 may be formed by attaching an annular body to the second flange 91-2 by welding or the like.

第４実施形態に係る鋼製部材の緊結方法において、貫通工程では、図１５（ａ）及び図１６（ａ）に示すように、第１曲がり面Ｌに沿う方向に回転させて、第１貫通孔９２－１と第２貫通孔９２－２とに、貫通部２の角部２８を貫通させ、第１係止部３と第２係止部２２との間に、第１フランジ９１－１と第２フランジ９１－２とを配置する。 In the method for binding steel members according to the fourth embodiment, in the piercing step, as shown in FIGS. 15A and 16A, the first piercing The corner portion 28 of the through portion 2 is passed through the hole 92-1 and the second through hole 92-2, and the first flange 91-1 is provided between the first locking portion 3 and the second locking portion 22. and the second flange 91-2.

このとき、第１係止部３から第２係止部２２までの距離Ｈ１が、第１フランジ９１－１の厚みｔ１と第２フランジ９１－２の厚みｔ２との和よりも大きいため、貫通工程では、第１係止部３が第１フランジ９１－１に係止され、第２係止部２２が第２フランジ９１－２から離間されることとなる。 At this time, the distance H1 from the first locking portion 3 to the second locking portion 22 is greater than the sum of the thickness t1 of the first flange 91-1 and the thickness t2 of the second flange 91-2. In the process, the first locking portion 3 is locked to the first flange 91-1, and the second locking portion 22 is separated from the second flange 91-2.

次に、緊結工程では、貫通部２の一端部２ａに形成されるネジ部２９に第１係止部３を螺合させる。これにより、図１５（ｂ）及び図１６（ｂ）に示すように、第２フランジ９１－２から離間された第２係止部２２が第２フランジ９１－２に近づいていき、第１係止部３から第２係止部２２までの距離Ｈ１が徐々に小さくなり、第１フランジ９１－１と第２フランジ９１－２に形成される第２突起部９６とを第１係止部３と第２係止部２２とにより挟んで緊結する。このとき、第２突起部９６を第２係止部２２に食い込ませることができる。 Next, in the tightening step, the first locking portion 3 is screwed into the threaded portion 29 formed at the one end portion 2 a of the through portion 2 . As a result, as shown in FIGS. 15(b) and 16(b), the second locking portion 22 spaced apart from the second flange 91-2 approaches the second flange 91-2, and the first locking portion 22 moves toward the second flange 91-2. The distance H1 from the stopping portion 3 to the second locking portion 22 gradually becomes smaller, and the first flange 91-1 and the second projection 96 formed on the second flange 91-2 move toward the first locking portion 3. and the second locking portion 22, and are tightly bound. At this time, the second projecting portion 96 can be bitten into the second locking portion 22 .

本実施形態によれば、第２コルゲート鋼板９０－２、第２係止部２２に接触される第２突起部９６を有する。これにより、第１フランジ９１－１と第２フランジ９１－２とを第１係止部３と第２係止部２２とにより挟んで緊結したとき、第２突起部９６を第２係止部２２に食い込ませることができる。このため、過度な緊結等により、緊結金具１が引き抜かれようとした場合、第２係止部２２が第２フランジ９１－２に対してずれるのを抑制することができる。その結果、ネジ部２９の軸心Ｃの傾きが抑制され、第１フランジ９１－１と第２フランジ９１－２とを強固に固定することができる。 According to this embodiment, the second corrugated steel plate 90-2 has the second protrusion 96 that contacts the second locking portion 22. As shown in FIG. As a result, when the first flange 91-1 and the second flange 91-2 are sandwiched between the first locking portion 3 and the second locking portion 22 and tightly connected, the second protrusion 96 is connected to the second locking portion. 22 can be made to bite. Therefore, when the binding fitting 1 is pulled out due to excessive binding or the like, it is possible to prevent the second locking portion 22 from being displaced with respect to the second flange 91-2. As a result, the inclination of the axial center C of the screw portion 29 is suppressed, and the first flange 91-1 and the second flange 91-2 can be firmly fixed.

ここで、過度な緊結等により、緊結金具１が引き抜かれようとした場合、第２フランジ９１－２の第２貫通孔９２－２の角部付近が、最も貫通部２からの接触力を受ける。この点、本実施形態によれば、第２突起部９６は、第２フランジ９１－２の第２貫通孔９２－２に近接した位置に設けられる。これにより、第２係止部２２が第２フランジ９１－２に対してずれるのを効果的に抑制することができる。このため、ネジ部２９の軸心Ｃの傾きが抑制され、第１フランジ９１－１と第２フランジ９１－２とを更に強固に固定することができる。 Here, when the binding fitting 1 is about to be pulled out due to excessive binding or the like, the vicinity of the corner of the second through-hole 92-2 of the second flange 91-2 receives the contact force from the through-hole 2 the most. . In this regard, according to the present embodiment, the second protrusion 96 is provided at a position close to the second through hole 92-2 of the second flange 91-2. As a result, it is possible to effectively prevent the second locking portion 22 from being displaced with respect to the second flange 91-2. Therefore, the inclination of the axial center C of the screw portion 29 is suppressed, and the first flange 91-1 and the second flange 91-2 can be fixed more firmly.

（第５実施形態）
次に、第５実施形態に係る鋼製部材の緊結構造１００について説明する。図１７は、第５実施形態に係る鋼製部材の緊結構造１００の一例を示す斜視図である。図１８（ａ）は、第５実施形態に係る鋼製部材の緊結構造１００の一例を示す側面図であり、図１８（ｂ）は、その底面図である。 (Fifth embodiment)
Next, a steel member binding structure 100 according to a fifth embodiment will be described. FIG. 17 is a perspective view showing an example of the steel member binding structure 100 according to the fifth embodiment. FIG. 18(a) is a side view showing an example of the steel member binding structure 100 according to the fifth embodiment, and FIG. 18(b) is a bottom view thereof.

本実施形態では、第１鋼製部材として鋼板８－１が用いられ、第２鋼製部材として筒状の支柱８－２が用いられる。鋼製部材の緊結構造１００は、鋼板８－１と、支柱８－２とを緊結するものである。 In this embodiment, a steel plate 8-1 is used as the first steel member, and a tubular support 8-2 is used as the second steel member. A steel member binding structure 100 is for binding a steel plate 8-1 and a column 8-2.

鋼板８－１は、隣接する支柱８－２に緊結される。鋼板８－１は、鋼板が曲げ加工されており、支柱８－２に接触する部分が湾曲して形成される。鋼板８－１は、支柱８－２に接触する部分に第２貫通孔８２－２が形成される。鋼板８－１は、両端に孔が形成され、この孔を介して図示しない防護柵等の柵用パネルが接続可能な接続金具が用いられる。 The steel plate 8-1 is tied to the adjacent struts 8-2. The steel plate 8-1 is formed by bending a steel plate, and the portion that contacts the column 8-2 is curved. The steel plate 8-1 is formed with a second through hole 82-2 in a portion that contacts the support column 8-2. The steel plate 8-1 has holes formed at both ends thereof, and connection fittings are used through which a fence panel such as a protective fence (not shown) can be connected.

支柱８－２は、断面円形状等の筒状に形成され、下端が地面に固定される。支柱８－２は、側壁部に第２貫通孔８２－２が形成され、第２貫通孔８２－２に対向する位置には貫通孔が形成されていない。 The post 8-2 is formed in a cylindrical shape such as a circular cross section, and the lower end is fixed to the ground. The post 8-2 has a second through hole 82-2 formed in the side wall portion, and no through hole is formed at a position facing the second through hole 82-2.

鋼製部材の緊結構造１００は、鋼板８－１と、支柱８－２と、緊結金具１とを備える。 A binding structure 100 for steel members includes a steel plate 8-1, a strut 8-2, and a binding fitting 1. As shown in FIG.

次に、鋼製部材の緊結方法について、説明する。鋼製部材の連結方法は、第１貫通孔８２－１が形成される鋼板８－１と、第２貫通孔８２－２が形成される支柱８－２と、を緊結するものであって、緊結金具１が用いられる。鋼製部材の緊結方法では、貫通工程と、緊結工程とを備える。鋼製部材の緊結方法では、予め第１貫通孔８２－１と第２貫通孔８２－２とを対向させておく。 Next, a method for binding steel members will be described. The method of connecting the steel members is to tightly connect the steel plate 8-1 in which the first through hole 82-1 is formed and the support 8-2 in which the second through hole 82-2 is formed, A binding device 1 is used. A method for binding steel members includes a piercing step and a binding step. In the method of fastening steel members, the first through hole 82-1 and the second through hole 82-2 are opposed in advance.

図１９は、鋼製部材の緊結方法における貫通工程において貫通部２を他端部２ｂ側から貫通する前の状態を示す側面図である。 FIG. 19 is a side view showing a state before the penetrating portion 2 is penetrated from the other end portion 2b side in the penetrating step in the method of binding steel members.

貫通工程では、第１係止部３から第２係止部２２までの距離Ｈ１が、鋼板８－１の厚みｔ１と支柱８－２の厚みｔ２との和よりも大きくなるように、予め第１係止部３の頭部３０を貫通部２の一端部２ａに螺合させておく。 In the piercing step, the first locking portion 3 is adjusted in advance so that the distance H1 from the first locking portion 3 to the second locking portion 22 is greater than the sum of the thickness t1 of the steel plate 8-1 and the thickness t2 of the support 8-2. 1 The head portion 30 of the engaging portion 3 is screwed to the one end portion 2a of the penetrating portion 2 .

そして、貫通工程では、第１貫通孔８２－１と第２貫通孔８２－２とに、貫通部２を他端部２ｂ側から貫通させる。 Then, in the piercing step, the piercing portion 2 is passed through the first through hole 82-1 and the second through hole 82-2 from the other end portion 2b side.

図２０（ａ）は、鋼製部材の緊結方法において第１係止部３と第２係止部２２とにより挟んで緊結する前の状態を示す側面図である。そして、貫通工程では、第１曲がり面Ｌに沿う方向に回転させて、第１貫通孔８２－１と第２貫通孔８２－２とに、貫通部２の角部２８を貫通させ、第１係止部３と第２係止部２２との間に、鋼板８－１と支柱８－２とを配置する。 FIG. 20(a) is a side view showing a state before clamping between the first engaging portion 3 and the second engaging portion 22 in the method of binding steel members. Then, in the penetrating step, the corner portion 28 of the penetrating portion 2 is caused to penetrate through the first through hole 82-1 and the second through hole 82-2 by rotating in the direction along the first curved surface L. A steel plate 8-1 and a support 8-2 are arranged between the locking portion 3 and the second locking portion 22. As shown in FIG.

このとき、第１係止部３から第２係止部２２までの距離Ｈ１が、鋼板８－１の厚みｔ１と支柱８－２の厚みｔ２との和よりも大きい。 At this time, the distance H1 from the first engaging portion 3 to the second engaging portion 22 is greater than the sum of the thickness t1 of the steel plate 8-1 and the thickness t2 of the support 8-2.

また、第１係止部３から第２係止部２２までの距離Ｈ１と、鋼板８－１の厚みｔ１と支柱８－２の厚みｔ２との和と、の差Δｈとし、第１係止部３の高さｈ１としたとき、差Δｈは、第１係止部３の高さｈ１よりも小さいことが好ましい。 Further, the difference Δh between the distance H1 from the first locking portion 3 to the second locking portion 22 and the sum of the thickness t1 of the steel plate 8-1 and the thickness t2 of the support 8-2 is defined as the first locking When the height h1 of the portion 3 is assumed, the difference Δh is preferably smaller than the height h1 of the first locking portion 3 .

図２０（ｂ）は、鋼製部材の緊結方法において第１係止部３と第２係止部２２とにより挟んで緊結した後の状態を示す側面図である。緊結工程では、貫通部２の一端部２ａに形成されるネジ部２９に第１係止部３の頭部３０を螺合させる。これにより、図２１（ｂ）に示すように、第１係止部３から第２係止部２２までの距離Ｈ１が徐々に小さくなり、鋼板８－１と支柱８－２とを第１係止部３と第２係止部２２とにより挟んで緊結する。 FIG. 20(b) is a side view showing a state after the steel member is sandwiched between the first engaging portion 3 and the second engaging portion 22 in the method for binding steel members. In the tightening step, the head portion 30 of the first locking portion 3 is screwed into the screw portion 29 formed at the one end portion 2 a of the through portion 2 . As a result, as shown in FIG. 21(b), the distance H1 from the first locking portion 3 to the second locking portion 22 gradually decreases, and the steel plate 8-1 and the post 8-2 are brought into the first locking state. It is sandwiched between the stop portion 3 and the second locking portion 22 and tied.

このようにして、緊結工程では、鋼板８－１と支柱８－２とを、第１係止部３と第２係止部２２とにより挟んで緊結する。 In this way, in the binding process, the steel plate 8-1 and the post 8-2 are sandwiched between the first engaging portion 3 and the second engaging portion 22 and bound.

本実施形態によれば、貫通部２は、一端部２ａに形成されるネジ部２９に第１係止部３が螺合される。これにより、鋼板８－１と支柱８－２の厚みによらずに、第１係止部３と第２係止部２２が、鋼板８－１と支柱８－２とを挟んで緊結することができる。このため、汎用性を高くすることが可能となる。 According to the present embodiment, the penetrating portion 2 has the first locking portion 3 screwed onto the screw portion 29 formed at the one end portion 2a. As a result, regardless of the thicknesses of the steel plate 8-1 and the support column 8-2, the first locking portion 3 and the second locking portion 22 can be tightly connected by sandwiching the steel plate 8-1 and the support column 8-2. can be done. Therefore, it is possible to increase versatility.

また、本実施形態によれば、貫通部２は、一端部２ａに形成されるネジ部２９に第１係止部３が螺合される。これにより、第１係止部３と第２係止部２２が、鋼板８－１と支柱８－２とを挟んでより強固に緊結することができる。このため、緊結力を十分に確保することが可能となる。 Further, according to the present embodiment, the penetrating portion 2 has the first locking portion 3 screwed onto the screw portion 29 formed at the one end portion 2a. As a result, the first locking portion 3 and the second locking portion 22 can be more strongly connected with the steel plate 8-1 and the support 8-2 interposed therebetween. Therefore, it is possible to secure a sufficient binding force.

本実施形態によれば、第２係止部２２は、ネジ部２９から繋がる第１延伸部２３と、ネジ部２９の延伸方向に直交する面内方向で第１延伸部２３から屈曲して延びる第２延伸部２４と、を有する。これにより、外力が作用して鋼製部材同士が開くような変形が生じた場合であっても、第２延伸部２４が鋼製部材に係止された状態を維持でき、緊結金具１の脱落を抑制することができる。このため、終局荷重において脆性的な破壊を防止することが可能となる。 According to the present embodiment, the second locking portion 22 extends from the first extending portion 23 connected to the threaded portion 29 and bent from the first extending portion 23 in the in-plane direction orthogonal to the extending direction of the threaded portion 29 . and a second extending portion 24 . As a result, even if the steel members are deformed by the action of an external force, the second extending portion 24 can be kept locked to the steel members, and the binding metal fitting 1 can fall off. can be suppressed. Therefore, it is possible to prevent brittle fracture under the ultimate load.

また、本実施形態によれば、貫通工程では、予めネジ部２９に第１係止部３を螺合させておき、緊結工程では、ネジ部２９に第１係止部３を更に螺合させることにより、鋼板８－１と支柱８－２とを、第１係止部３と第２係止部２２とにより挟んで緊結する。これにより、従来のボルトにより鋼板と支柱とを接合する際には必要であった、ボルトにナットを一から螺着させる作業を省略することができる。このため、施工時間を短縮することが可能となる。 Further, according to the present embodiment, the threaded portion 29 is screwed into the first locking portion 3 in advance in the penetrating step, and the first locking portion 3 is further screwed into the threaded portion 29 in the tightening step. As a result, the steel plate 8-1 and the post 8-2 are sandwiched between the first locking portion 3 and the second locking portion 22 and tightly bound. As a result, it is possible to omit the work of screwing the nut onto the bolt from scratch, which is necessary when joining the steel plate and the column with the conventional bolt. Therefore, construction time can be shortened.

また、本実施形態によれば、鋼板８－１と支柱８－２とを、第１係止部３と第２係止部２２とにより挟んで緊結するため、支柱８－２の筒状の側壁部に第２貫通孔８２－２が形成さればよく、この第２貫通孔８２－２に対向する位置には貫通孔を形成する必要がない。このため、従来の鋼板を固定する際に必要であった支柱を貫通する貫通ボルトによる接合作業が不要となる。このため、施工作業をより短時間で行うことが可能となる。 Further, according to the present embodiment, since the steel plate 8-1 and the post 8-2 are sandwiched between the first engaging portion 3 and the second engaging portion 22 and tightly bound, the tubular shape of the post 8-2 is It is sufficient that the second through hole 82-2 is formed in the side wall portion, and it is not necessary to form a through hole at a position facing the second through hole 82-2. This eliminates the need for a jointing operation using through bolts that pass through the posts, which is required when fixing steel plates in the related art. Therefore, it is possible to perform the construction work in a shorter time.

本実施形態によれば、緊結工程では、ネジ部２９に第１係止部３を更に螺合させることにより、鋼板８－１と支柱８－２とを、第１係止部３と第２係止部２２とにより挟んで緊結する。これにより、鋼板８－１と支柱８－２の厚みによらずに、第１係止部３と第２係止部２２が、鋼板８－１と支柱８－２とを挟んで緊結することができる。このため、汎用性を高くすることが可能となる。 According to this embodiment, in the tightening step, the first locking portion 3 is further screwed onto the threaded portion 29 so that the steel plate 8-1 and the post 8-2 are connected to each other by connecting the first locking portion 3 and the second locking portion 3 together. It is pinched and tied with the locking portion 22 . As a result, regardless of the thicknesses of the steel plate 8-1 and the support column 8-2, the first locking portion 3 and the second locking portion 22 can be tightly connected by sandwiching the steel plate 8-1 and the support column 8-2. can be done. Therefore, it is possible to increase versatility.

さらに、本実施形態によれば、差Δｈは、第１係止部３の高さｈ１よりも小さい。これにより、第１係止部３と第２係止部２２が鋼板８－１と支柱８－２とを挟んで緊結するのに必要な距離を、第１係止部３の高さｈ１より小さくすることができる。このため、第１係止部３と第２係止部２２が、鋼板８－１と支柱８－２とを挟んで緊結する作業を容易に行うことができ、施工時間を短縮することが可能となる。 Furthermore, according to this embodiment, the difference Δh is smaller than the height h1 of the first locking portion 3 . As a result, the distance required for the first locking portion 3 and the second locking portion 22 to sandwich the steel plate 8-1 and the support 8-2 to bind together is determined by the height h1 of the first locking portion 3. can be made smaller. Therefore, the first locking portion 3 and the second locking portion 22 can be easily tightened with the steel plate 8-1 and the support 8-2 interposed therebetween, and the construction time can be shortened. becomes.

さらに、本実施形態によれば、第２貫通孔８２－２が筒状の支柱８－２に形成される。これにより、貫通部２の他端部２ｂを支柱８－２の内面に当接させた上で、第１係止部３をネジ部２９に対して回転させることができる。このため、支柱８－２の湾曲した内面に当接した他端部２ｂの回転ができなくなるため、第１係止部３とネジ部２９との供回りを防止することができる。 Furthermore, according to the present embodiment, a second through hole 82-2 is formed in the cylindrical post 8-2. As a result, the first locking portion 3 can be rotated with respect to the screw portion 29 while the other end portion 2b of the through portion 2 is brought into contact with the inner surface of the support 8-2. Therefore, since the other end portion 2b in contact with the curved inner surface of the post 8-2 cannot rotate, the first engaging portion 3 and the screw portion 29 can be prevented from rotating together.

本実施形態によれば、頭部３０と拡径部３１とが一体化される。これにより、頭部３０と拡径部３１とが分離される場合よりもネジ部２９の軸心Ｃからの距離を長く確保することができる。このため、ネジ部２９の軸心Ｃが傾くのを抑制することができ、鋼板８－１と支柱８－２との固定度の低下を抑制することが可能となる。 According to this embodiment, the head portion 30 and the expanded diameter portion 31 are integrated. As a result, a longer distance from the axis C of the screw portion 29 can be ensured than when the head portion 30 and the enlarged diameter portion 31 are separated. Therefore, it is possible to prevent the axial center C of the threaded portion 29 from inclining, and to prevent deterioration in the degree of fixation between the steel plate 8-1 and the post 8-2.

以上、この発明の実施形態のいくつかを説明したが、これらの実施形態は例として提示したものであり、発明の範囲を限定することは意図していない。また、これらの実施形態は、適宜組み合わせて実施することが可能である。さらに、この発明は、上記いくつかの実施形態の他、様々な新規な形態で実施することができる。したがって、上記いくつかの実施形態のそれぞれは、この発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更が可能である。このような新規な形態や変形は、この発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明、及び特許請求の範囲に記載された発明の均等物の範囲に含まれる。 Although some embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. In addition, these embodiments can be implemented in combination as appropriate. Furthermore, the present invention can be implemented in various novel forms other than the above several embodiments. Therefore, various omissions, replacements, and modifications are possible for each of the above several embodiments without departing from the scope of the present invention. Such novel forms and modifications are included in the scope and gist of the present invention, as well as the invention described in the claims and the scope of equivalents of the invention described in the claims.

１００ ：鋼製部材の緊結構造
１ ：緊結金具
２ ：貫通部
２ａ ：一端部
２ｂ ：他端部
２２ ：第２係止部
２３ ：第１延伸部
２４ ：第２延伸部
２５ ：第１突起部
２８ ：角部
２９ ：ネジ部
３ ：第１係止部
３０ ：頭部
３１ ：拡径部
７ ：補強リング
７１ ：補強ウェブ
７２ ：補強フランジ
８－１ ：鋼板
８２－１ ：第１貫通孔
８－２ ：支柱
８２－２ ：第２貫通孔
９ ：ライナープレート
９－１ ：第１ライナープレート
９－２ ：第２ライナープレート
９１ ：フランジ
９１－１ ：第１フランジ
９１－２ ：第２フランジ
９１ａ ：内側端部
９０ ：コルゲート鋼板
９０－１ ：第１コルゲート鋼板
９０－２ ：第２コルゲート鋼板
９２ ：貫通孔
９２－１ ：第１貫通孔
９２－２ ：第２貫通孔
９４ ：山部
９５ ：谷部
９６ ：第２突起部 100: steel member binding structure 1: binding fitting 2: penetrating portion 2a: one end portion 2b: other end portion 22: second locking portion 23: first extending portion 24: second extending portion 25: first projection 28: corner portion 29: screw portion 3: first locking portion 30: head portion 31: enlarged diameter portion 7: reinforcing ring 71: reinforcing web 72: reinforcing flange 8-1: steel plate 82-1: first through hole 8 -2: Post 82-2: Second through hole 9: Liner plate 9-1: First liner plate 9-2: Second liner plate 91: Flange 91-1: First flange 91-2: Second flange 91a : Inner end 90 : Corrugated steel plate 90-1 : First corrugated steel plate 90-2 : Second corrugated steel plate 92 : Through hole 92-1 : First through hole 92-2 : Second through hole 94 : Mountain portion 95 : Valley 96: Second protrusion

Claims (7)

貫通孔が形成される鋼製部材同士を緊結するための緊結金具であって、
隣接する鋼製部材に形成される各々の貫通孔に貫通可能な貫通部と、
前記貫通部の一端部側に螺合可能な頭部と、前記頭部と前記鋼製部材との間に配置されるとともに前記貫通孔よりも径大に形成される拡径部と、を有する第１係止部と、を備え、
前記貫通部は、
一端部側に前記頭部が螺合されるネジ部と、
前記ネジ部に対して直交して延びる第２係止部と、を有し、
前記第１係止部と前記第２係止部とは、隣接する前記鋼製部材同士を挟んで緊結するものであり、
前記第２係止部は、前記ネジ部から繋がる第１延伸部と、前記ネジ部の延伸方向に直交する面内方向で前記第１延伸部から屈曲して延びる第２延伸部と、を有すること
を特徴とする緊結金具。 A binding fitting for binding together steel members in which through holes are formed,
a penetrating part that can penetrate through each through hole formed in an adjacent steel member;
It has a head that can be screwed to one end of the through-hole, and an enlarged diameter part that is arranged between the head and the steel member and has a larger diameter than the through-hole. and a first locking portion,
The penetrating part is
a threaded portion to which the head is screwed on one end side;
a second locking portion extending orthogonally to the threaded portion;
The first locking portion and the second locking portion sandwich and tighten the adjacent steel members,
The second locking portion has a first extending portion connected from the threaded portion, and a second extending portion bent and extending from the first extending portion in an in-plane direction perpendicular to the extending direction of the threaded portion. A binding fitting characterized by: 貫通孔が形成される鋼製部材同士を緊結する鋼製部材の緊結構造であって、
第１貫通孔が形成される第１鋼製部材と、
第２貫通孔が形成される、前記第１鋼製部材に隣接する第２鋼製部材と、
前記第１鋼製部材と前記第２鋼製部材とを緊結するための緊結金具とを備え、
前記緊結金具は、
前記第１貫通孔と前記第２貫通孔とに貫通される貫通部と、
前記貫通部の一端部側に設けられる頭部と、前記頭部と前記第１鋼製部材との間に配置されるとともに前記第１貫通孔よりも径大に形成される拡径部と、を有する第１係止部と、を有し、
前記貫通部は、
一端部側に前記頭部が螺合されるネジ部と、
前記ネジ部に対して直交して延びる第２係止部と、を有し、
前記第１係止部と前記第２係止部とは、隣接する前記第１鋼製部材と前記第２鋼製部材を挟んで緊結するものであり、
前記第２係止部は、前記ネジ部から繋がる第１延伸部と、前記ネジ部の延伸方向に直交する面内方向で前記第１延伸部から屈曲して延びる第２延伸部と、を有すること
を特徴とする鋼製部材の緊結構造。 A steel member binding structure for binding together steel members having through holes formed therein,
a first steel member in which a first through hole is formed;
a second steel member adjacent to the first steel member, in which a second through hole is formed;
a binding fitting for binding the first steel member and the second steel member;
The binding fitting is
a through portion penetrating through the first through hole and the second through hole;
a head portion provided on one end side of the through portion; an enlarged diameter portion disposed between the head portion and the first steel member and having a diameter larger than that of the first through hole; and a first locking portion having
The penetrating part is
a threaded portion to which the head is screwed on one end side;
a second locking portion extending orthogonally to the threaded portion;
The first locking portion and the second locking portion sandwich the adjacent first steel member and the second steel member and fasten them,
The second locking portion has a first extending portion connected from the threaded portion, and a second extending portion bent and extending from the first extending portion in an in-plane direction perpendicular to the extending direction of the threaded portion. A binding structure for steel members characterized by: 前記第１鋼製部材と前記第２鋼製部材は、前記貫通孔が形成されるフランジを有するライナープレートであること
を特徴とする請求項２記載の鋼製部材の緊結構造。 The steel member binding structure according to claim 2, wherein the first steel member and the second steel member are liner plates having flanges in which the through holes are formed. 前記第１鋼製部材と前記第２鋼製部材は、コルゲート鋼板であること
を特徴とする請求項２記載の鋼製部材の緊結構造。 The steel member binding structure according to claim 2, wherein the first steel member and the second steel member are corrugated steel plates. 前記第１鋼製部材は、鋼板であり、
前記第２鋼製部材は、筒状に形成される支柱であること
を特徴とする請求項２記載の鋼製部材の緊結構造。 The first steel member is a steel plate,
3. The steel member binding structure according to claim 2, wherein the second steel member is a post formed in a cylindrical shape. 貫通孔が形成される鋼製部材を緊結する鋼製部材の緊結方法であって、
第１鋼製部材に形成される第１貫通孔と、前記第１鋼製部材に隣接する第２鋼製部材に形成される第２貫通孔とに貫通される貫通部と、
前記貫通部の一端部側に螺合可能な頭部と、前記第１貫通孔よりも径大に形成される拡径部と、を有する第１係止部と、を備え、
前記貫通部は、
一端部側に前記頭部が螺合されるネジ部と、
前記ネジ部に対して直交して延びる第２係止部と、を有し、
前記第２係止部は、前記ネジ部から繋がる第１延伸部と、前記ネジ部の延伸方向に直交する面内方向で前記第１延伸部から屈曲して延びる第２延伸部と、を有する、緊結金具を用いて、
予め前記ネジ部に前記頭部を螺合させておき、前記第１貫通孔と前記第２貫通孔とに、前記第２係止部を貫通させ、前記第１係止部と前記第２係止部との間に、前記第１鋼製部材と前記第２鋼製部材とを配置する貫通工程と、
前記ネジ部に前記頭部を更に螺合させることにより、前記第１鋼製部材と前記第２鋼製部材とを前記第１係止部と前記第２係止部とにより挟んで緊結する緊結工程と、を備えること
を特徴とする鋼製部材の緊結方法。 A steel member binding method for binding steel members in which through holes are formed, comprising:
a penetrating portion penetrating a first through hole formed in a first steel member and a second through hole formed in a second steel member adjacent to the first steel member;
a first locking portion having a head portion that can be screwed to one end side of the through portion and an enlarged diameter portion formed to have a diameter larger than that of the first through hole;
The penetrating part is
a threaded portion to which the head is screwed on one end side;
a second locking portion extending orthogonally to the threaded portion;
The second locking portion has a first extending portion connected from the threaded portion, and a second extending portion bent and extending from the first extending portion in an in-plane direction perpendicular to the extending direction of the threaded portion. , with binding hardware,
The head is screwed into the threaded portion in advance, the second locking portion is passed through the first through hole and the second through hole, and the first locking portion and the second locking portion are inserted into the first through hole and the second through hole. a piercing step of arranging the first steel member and the second steel member between the stopping portion;
By further screwing the head onto the threaded portion, the first steel member and the second steel member are clamped by the first locking portion and the second locking portion and tightly connected. A method for binding steel members, comprising: 複数の前記緊結金具を用いて、各々の前記緊結金具について前記貫通工程を行った後に、各々の前記緊結金具について前記緊結工程を行うこと
を特徴とする請求項６記載の鋼製部材の緊結方法。 7. The method for binding steel members according to claim 6, wherein a plurality of said binding fittings are used, and said binding step is carried out for each of said binding fittings after said penetration step is carried out for each of said binding fittings. .
JP2021141307A 2021-08-31 2021-08-31 Binding fitting, binding structure for steel members, and binding method for steel members Pending JP2023034859A (en)

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