JP4709727B2 - Nut holding structure in base material - Google Patents

Nut holding structure in base material Download PDF

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JP4709727B2
JP4709727B2 JP2006303487A JP2006303487A JP4709727B2 JP 4709727 B2 JP4709727 B2 JP 4709727B2 JP 2006303487 A JP2006303487 A JP 2006303487A JP 2006303487 A JP2006303487 A JP 2006303487A JP 4709727 B2 JP4709727 B2 JP 4709727B2
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nut
side wall
bolt
base material
piece
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JP2008121723A (en
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敏 丸山
武弘 小林
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MK Seiko Co Ltd
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MK Seiko Co Ltd
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Description

本発明は、中空角材やアングル材等の基材に、ナットを位置決め・回り止め・抜け止めされた状態で取り付けるためのナット保持構造に関する。   The present invention relates to a nut holding structure for attaching a nut to a base material such as a hollow square member or an angle member in a state where the nut is positioned, prevented from being rotated, and prevented from coming off.

中空角材やアングル材等の第１基材に、別の第２基材をボルト締結により接続する場合、第１基材における第２基材の取付位置にボルトが貫通する貫通孔を開口し、その貫通孔に対向した位置にナットを溶接固定する方法が一般的に行われてきた。こうしたナットの溶着作業は、非常に面倒なものであるため、作業工数とコストが嵩み生産性や経済性に問題があった。   When connecting another second base material to the first base material such as a hollow square member or an angle member by fastening the bolt, a through hole through which the bolt penetrates at the mounting position of the second base material in the first base material is opened. A method of welding and fixing a nut at a position facing the through hole has been generally performed. The welding operation of such nuts is very troublesome, so that the man-hours and costs are increased, and there are problems in productivity and economy.

また、溶着以外の方法で基材にナットを取り付ける構造として、特許文献１が知られている。この取付構造は、基材の側壁にボルト挿通孔を形成するとともに、この側壁と隣接する側壁に開口部を形成し、この開口部からナットを取り付けたプレートを挿入してボルト挿通孔とナットを整合させるようにしたものである。このようなナット取付構造では、独立したベースプレートが必要となり、部品管理や組立工数が掛かるという問題が生じる。また、他部材とボルトで締結する際の寸法管理を容易にするため、ナットをプレートに対して移動可能にしているので、ボルトの締結時にナットが固定されず位置合わせや締付の作業性が悪いという問題がある。
特開平７−１９００３５号 Moreover, patent document 1 is known as a structure which attaches a nut to a base material by methods other than welding. In this mounting structure, a bolt insertion hole is formed in the side wall of the base material, an opening is formed in the side wall adjacent to the side wall, and a plate having a nut attached thereto is inserted from the opening to insert the bolt insertion hole and the nut. It is made to match. In such a nut mounting structure, an independent base plate is required, and there arises a problem that parts management and assembly man-hours are required. In addition, the nut can be moved with respect to the plate to facilitate dimensional control when tightening with other members with bolts, so the nut is not fixed when tightening the bolts, and positioning and tightening workability is improved. There is a problem of being bad.
JP-A-7-190035

本発明が解決しようとする課題は、中空角材やアングル材等の基材に、溶着や別部品の取付を伴わずに、ナットを位置決め・回り止め・抜け止めされた状態に取り付けることで、作業性・経済性に優れたナット保持構造を提供することにある。   The problem to be solved by the present invention is to attach a nut to a base material such as a hollow square member or an angle member in a state where the nut is positioned, non-rotated and prevented from coming off without welding or attaching another part. The object is to provide a nut holding structure that is excellent in efficiency and economy.

本発明は上記課題を解決するため、基材にナットを取り付けるためのナット保持構造であって、基材の側壁にボルト貫通孔を開口し、この側壁と隣接する側壁に前記ボルト貫通孔に向かって折り曲げられる断片を切り抜き成型し、該断片にフランジ付きナットのフランジ部が挿通される幅広溝部と、フランジ付きナットのナット部が回り止めされた状態で挿通される幅狭溝部とからなるナット取付溝を形成し、該断片を側壁内面と隙間を形成するように折り曲げ、該断片の幅広溝部から断片と側壁内面の隙間にフランジ付きナットのフランジ部を挿通していき、フランジ付きナットのナット部を幅狭溝部に挿入すると該ナットが回り止め且つ抜け止めされた状態でボルト貫通孔に対向して基材内に固定されることを特徴とした。
In order to solve the above-mentioned problems, the present invention provides a nut holding structure for attaching a nut to a base material, wherein a bolt through hole is opened in a side wall of the base material, and the side wall adjacent to the side wall faces the bolt through hole. Nut mounting consisting of a wide groove part through which the flange part of the flanged nut is inserted and a narrow groove part through which the nut part of the flanged nut is prevented from rotating Form a groove, fold the piece to form a gap with the inner surface of the side wall, and insert the flange portion of the flanged nut from the wide groove portion of the piece into the gap between the piece and the inner surface of the side wall. When the nut is inserted into the narrow groove portion, the nut is fixed in the base material so as to face the bolt through hole in a state in which the nut is prevented from rotating and prevented from coming off .

本発明によれば、中空角材の一面を切り抜いてナット保持用の断片を形成するようにしたので、ナットを固定するための別部品の管理や溶着等の固定作業が不要になる。また、ナット保持用の断片によってフランジ付きナットがボルト孔に対して位置決めされるとともに、ボルト締め付け時の回り止め・抜け止めがなされるので、別部材の接合作業をきわめて容易に行うことができるようになる。   According to the present invention, since one side of the hollow square member is cut out to form a piece for holding the nut, it is not necessary to manage another part for fixing the nut or to perform fixing work such as welding. In addition, the nut with the flange is positioned with respect to the bolt hole by the piece for holding the nut, and the rotation prevention / removal prevention at the time of tightening the bolt is performed, so that it is possible to perform the operation of joining different members very easily. become.

以下、図面を用いて本発明の実施例１について説明する。図１は本発明のナット保持構造を備えた中空角材の構成を示す外観図である。
１は金属製の中空角材で、側壁Ａ，Ｂ，Ｃ，Ｄからなる四角柱形状をなしている。側壁Ａには、ボルト貫通孔２が開口されており、別基材の取付面を構成する。側壁Ａと隣接する側壁Ｂには、ボルト貫通孔２が開口された側壁Ａの内面Ａ’に向かって折り曲げ加工される断片３が切り抜き成型されている。この断片３は、側壁Ｂにおける側壁Ａとの稜縁部４を除いた三方をＮＣレーザ加工等によって略コ字状に切り込んだ切込溝５によって矩形状に成型される。 Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 is an external view showing a configuration of a hollow square member having a nut holding structure of the present invention.
Reference numeral 1 denotes a metal hollow square member having a quadrangular prism shape including side walls A, B, C, and D. Bolt through holes 2 are opened in the side wall A, and constitute a mounting surface of another base material. On the side wall B adjacent to the side wall A, a piece 3 which is bent toward the inner surface A ′ of the side wall A where the bolt through hole 2 is opened is cut out and molded. This piece 3 is molded into a rectangular shape by a cut groove 5 obtained by cutting the three sides of the side wall B excluding the ridge edge 4 with the side wall A into a substantially U shape by NC laser processing or the like.

断片３には、フランジ付きナットを保持するためのナット取付溝６が切り抜き成型されている。ナット取付溝６は、断片３における前記稜縁部４側にフランジ付きナットのフランジ部が挿通可能なフランジ挿通部６ａを形成し、断片３の自由端部７側にフランジ付きナットのナット部が挿通可能なナット保持部６ｂを形成している。   In the piece 3, a nut mounting groove 6 for holding a flanged nut is cut out and molded. The nut mounting groove 6 forms a flange insertion portion 6a into which the flange portion of the flanged nut can be inserted on the ridge edge portion 4 side in the fragment 3, and the nut portion of the flanged nut is formed on the free end portion 7 side of the fragment 3. A nut holding portion 6b that can be inserted is formed.

図２は断片３を折り曲げた状態を示す説明図、図３は断片３にフランジ付きナットを取り付ける状態を示す説明図である。
まず、ナット取付溝６を打ち抜き、稜縁部４を折り曲げ基準として、断片３をボルト貫通孔２が開口された側壁Ａの内面Ａ’に向けて略９０°折り曲げていく。このとき、側壁Ａの内面Ａ’と断片３との間にフランジ付きナット８のフランジ部８ａが遊嵌されるだけの隙間Ｓを生じるように折り曲げる（図２）。 FIG. 2 is an explanatory view showing a state where the piece 3 is bent, and FIG. 3 is an explanatory view showing a state where a nut with a flange is attached to the piece 3.
First, the nut mounting groove 6 is punched out, and the piece 3 is bent by approximately 90 ° toward the inner surface A ′ of the side wall A where the bolt through-hole 2 is opened, with the ridge edge 4 as a bending reference. At this time, it is bent so as to generate a gap S between the inner surface A ′ of the side wall A and the piece 3 so that the flange portion 8a of the flanged nut 8 is loosely fitted (FIG. 2).

次に、フランジ付きナット８のフランジ部８ａをナット取付溝６のフランジ挿通部６ａから隙間Ｓに挿通していき、ナット部８ｂがナット取付溝６のナット挿通部６ｂに嵌合することで、フランジ付きナット８が位置決め・回り止め・抜け止めされた状態でボルト貫通孔２と対向する位置に取り付けられる（図３）。すなわち、フランジ付きナット８のナット部８ｂがナット挿通部６ｂに嵌合することで、ナット８のねじ穴８ｃがボルト貫通孔２と連通するように位置決めされるとともに、ボルトをねじ込むときの回り止めとなり、しかも隙間Ｓにフランジ部８ａが挟持されてボルトをねじ込むときの抜け止めがなされることになる。   Next, the flange portion 8a of the nut 8 with the flange is inserted into the gap S from the flange insertion portion 6a of the nut mounting groove 6, and the nut portion 8b is fitted into the nut insertion portion 6b of the nut mounting groove 6. The flanged nut 8 is attached at a position facing the bolt through hole 2 in a state where the nut 8 with positioning, rotation prevention, and removal prevention is performed (FIG. 3). That is, when the nut portion 8b of the nut 8 with the flange is fitted into the nut insertion portion 6b, the screw hole 8c of the nut 8 is positioned so as to communicate with the bolt through hole 2, and the rotation is prevented when the bolt is screwed. In addition, the flange portion 8a is sandwiched in the gap S and is prevented from coming off when the bolt is screwed.

図４は本発明のナット保持構造を備えた中空角材に別部材を接合する状態を示す説明図である。
折り曲げた断片３のナット取付溝６にフランジ付きナット８を取り付けた状態で、接合部材９（ここではＬ型アングル材）をボルト１０によって固定する。すなわち、接合部材９の一側壁に開口したボルト孔１１と中空角材１のボルト貫通孔２を合わせてボルト１０をねじ込んでいく。このとき、フランジ付きナット８は、ナット取付溝６によって位置決め・回り止め及び抜け止めされているので、ボルト１０をねじ込んでいくだけできわめて簡単に接合作業を行うことが可能になる。 FIG. 4 is an explanatory view showing a state in which another member is joined to the hollow square member having the nut holding structure of the present invention.
In a state where the nut 8 with the flange is attached to the nut attachment groove 6 of the bent piece 3, the joining member 9 (here, L-shaped angle material) is fixed with the bolt 10. That is, the bolt 10 is screwed together with the bolt hole 11 opened on one side wall of the joining member 9 and the bolt through hole 2 of the hollow square member 1. At this time, the flanged nut 8 is positioned, prevented from rotation and prevented from coming off by the nut mounting groove 6, so that it is possible to perform the joining operation very simply by screwing in the bolt 10.

このような構成により、ナット取付溝６の切り抜き寸法を可変することによって、様々な大きさのフランジ付きナットを取り付け可能になる。従って、ナット取付溝の切り抜き加工精度を管理すればよいため、ＮＣレーザ加工等によって品質管理が容易に行える。尚、ここでは中空角材を例に説明したが、２つ以上の側壁を有する部材であれば採用できる構造であり、特に限定はない。   With such a configuration, various sizes of flanged nuts can be attached by varying the cutout dimension of the nut attachment groove 6. Therefore, since it is only necessary to manage the cutting accuracy of the nut mounting groove, quality control can be easily performed by NC laser processing or the like. In addition, although the hollow square material was demonstrated here as an example, it is a structure which can be employ | adopted if it is a member which has two or more side walls, and there is no limitation in particular.

本発明のナット保持構造を備えた中空角材１の構成を示す外観図である。It is an external view which shows the structure of the hollow square material 1 provided with the nut holding structure of this invention. 断片３を折り曲げた状態を示す説明図である。It is explanatory drawing which shows the state which bent the fragment | piece 3. FIG. 断片３にフランジ付きナット８を取り付けた状態を示す説明図である。It is explanatory drawing which shows the state which attached the nut 8 with a flange to the fragment | piece 3. FIG. 中空角材１に別部材１０を接合する状態を示す説明図である。It is explanatory drawing which shows the state which joins the separate member 10 to the hollow square material 1. FIG.

符号の説明Explanation of symbols

１ 中空角材
２ ボルト貫通孔
３ 断片（ナット保持片）
４ 稜縁部
５ 切込溝
６ ナット取付溝
６ａ フランジ挿通部（幅広溝部）
６ｂ ナット保持部（幅狭溝部）
７ 自由端部
８ フランジ付きナット
８ａ フランジ部
８ｂ ナット部
８ｃ ねじ穴
９ 別部材（Ｌ型アングル材）
１０ ボルト
１１ ボルト孔
Ａ 側壁
Ｂ 側壁
Ｃ 側壁
Ｄ 側壁
Ｓ 隙間 1 Hollow Square Material 2 Bolt Through Hole 3 Piece (Nut Holding Piece)
4 Edge edge 5 Cut groove 6 Nut mounting groove 6a Flange insertion part (wide groove part)
6b Nut holder (narrow groove)
7 Free end 8 Nut with flange 8a Flange 8b Nut 8c Screw hole 9 Separate member (L-shaped angle material)
10 bolt 11 bolt hole A side wall B side wall C side wall D side wall S gap

Claims (1)

基材にナットを取り付けるためのナット保持構造であって、
基材の側壁にボルト貫通孔を開口し、この側壁と隣接する側壁に前記ボルト貫通孔に向かって折り曲げられる断片を切り抜き成型し、該断片にフランジ付きナットのフランジ部が挿通される幅広溝部と、フランジ付きナットのナット部が回り止めされた状態で挿通される幅狭溝部とからなるナット取付溝を形成し、
該断片を側壁内面と隙間を形成するように折り曲げ、該断片の前記幅広溝部から前記断片と側壁内面の隙間にフランジ付きナットのフランジ部を挿通していき、フランジ付きナットのナット部を幅狭溝部に挿入すると該ナットが回り止め且つ抜け止めされた状態でボルト貫通孔に対向して基材内に固定されることを特徴とする基材におけるナット保持構造。 A nut holding structure for attaching a nut to a base material,
Opening a bolt through hole in the side wall of the base material, cutting out a piece bent toward the bolt through hole in the side wall adjacent to the side wall, and a wide groove portion through which the flange portion of the flanged nut is inserted; , Forming a nut mounting groove composed of a narrow groove portion inserted in a state where the nut portion of the flanged nut is prevented from rotating,
The piece is bent so as to form a gap with the inner surface of the side wall, and the flange portion of the flanged nut is inserted from the wide groove portion of the piece into the gap between the piece and the inner surface of the side wall. A nut holding structure in a base material , wherein when the nut is inserted into the groove, the nut is fixed in the base material so as to face the bolt through hole in a state in which the nut is prevented from rotating and coming off .
JP2006303487A 2006-11-09 2006-11-09 Nut holding structure in base material Active JP4709727B2 (en)

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CN105822651A (en) * 2015-10-29 2016-08-03 马勒技术投资(中国）有限公司 Base type nut and connection structure adopting same

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JPH07174125A (en) * 1993-12-21 1995-07-11 Toyo Kanetsu Kk Insertion structure of nut in molding material
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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