JP4198407B2 - Structural material - Google Patents

Structural material Download PDF

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Publication number
JP4198407B2
JP4198407B2 JP2002215879A JP2002215879A JP4198407B2 JP 4198407 B2 JP4198407 B2 JP 4198407B2 JP 2002215879 A JP2002215879 A JP 2002215879A JP 2002215879 A JP2002215879 A JP 2002215879A JP 4198407 B2 JP4198407 B2 JP 4198407B2
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Japan
Prior art keywords
nut
groove
structural material
dovetail groove
width
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JP2002215879A
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Japanese (ja)
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JP2004019943A (en
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耕治 富田
秀毅 狩郷
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Hikari Corp
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Hikari Corp
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Description

【0001】
【発明の属する技術分野】
本発明はナット及びこのナットを用いて各種装置のフレーム或は各種機械ハウジング、機械カバー、ドア等を組み立てるための長尺の構造材に関し、更に詳しくは長尺の構造材の側面に開設したナット挿入口よりナットを挿入しボルトや連結金具を用いて他の構造材又は/及び機械部材と接続するためのナット及び構造材に関する。
【0002】
【従来の技術】
従来、長尺の構造材の側面にスロット状アリ溝のナット挿入口を開設し、このナット挿入口よりナットを挿入しアリ溝内にナットを装着する構成ものとして、例えば特開2000−18228号公報、特開平7−293536号に公報、実開平6−28324号公報にて記載のものが存在する。特開2000−18228号公報記載の発明は、ナットに六角ナットを用い、この六角ナットの対向するナット2面幅よりも狭小なナット挿入用開口部を長尺の構造材の側面に長手方向に沿って開設し、ナット挿入用開口部と連通するナット2面幅に相当する溝幅を有するナット着座部の少なくとも一方の側壁にナット挿入補助部を凹設して構成されている。特開平7−293536号公報に記載の発明は、内向フランジ部を設けたナット挿入口(上縁部)を有し、下部は段部を設けてナット挿入口(上縁部)と同一横幅の底部を設けてなるT溝に装着するためのナットであって、T溝のナット挿入口(上縁部)より露出する平坦な上面の左右側部に段差を設けて側方に突出するフランジ部を形成し、このフランジ部下面は切り欠いて断面略T字形に形成すると共に、前後端部は切り欠いて弾性片を嵌合するための取付部を形成し、この取付部に側方に付勢する弾性片を嵌合し、弾性片を内方に圧縮した状態で弾性片と共にナットを長尺材のナット挿入口に傾斜させて挿入し、ナットのフランジ部上面がナット挿入口の内向フランジ部下面に弾性片の弾性復元力で圧接するように形成されている。実開平6−28324号公報記載の考案は、規格の四角ナットを挿入するためのスロット状アリ溝を有する構造材であって、T溝の左右側壁に四角ナットの角部を填め込み可能な溝を凹設して形成されている。
又、特開平11−280731号公報や実開平7−35813号公報記載のもののように、ナット挿通孔に対応した縦幅のナットを、スロット状アリ溝内にナット挿通孔より傾斜させることなく挿入し、アリ溝内でナットを水平方向に90°回転させて装着させる構成のものが提案されている。
又、特開平7−83223号公報、特開平6−235412号公報、特開2000−205228号公報、特開2000−170732号公報、特表平8−503056号公報記載のもののようにスロット状アリ溝の端面開口からナットを構造材の縦方向(長手方向)に沿ってスライドさせて挿入し、側面側の開口からボルトを挿入してナットをボルトにて縲着固定する構成のものが提案されている。
【0003】
【発明が解決しようとする課題】
上記従来例のうち特開2000−18228号公報、特開平7−293536号公報、実開平6−28324号公報記載のものは、アリ溝の横幅が広く、構造材の長手方向に対して垂直な穿孔をすることができず、穿孔を可能にするためには隣り合うアリ溝間距離を長くし、結果的には構造材の側面の横幅を著しく広くしなければならず、構造材の重量化及び高コスト化を招来し、また、構造材端部へのエンドキャップの装着が困難であるという問題点を有していた。
又、特開2000−18228号公報、特開平11−280731号公報や実開平7−35813号公報記載のものは、ナット側面とアリ溝側壁との間の隙間が大きくなりすぎるため、ボルトをナットに縲着する際にボルトと共にナットも回転するおそれがあり、アリ溝内でのナットの位置が不安定化するという問題点を有していた。
又、スロット状アリ溝の構造材の端面側開口よりナットを挿入する構成のものは、構造材の前後いずれか一端面にアリ溝を開口していなければならず、構造材を組立後にアリ溝へのナットの挿入が出来ないという問題点を有していた。
又、従来例のナットと構造材は、アリ溝内にナットを挿入すると、ナット下面がアリ溝の溝底に当接し、ボルトをナットの雌ねじ孔に螺着する際にボルトの先端で溝底を突き、溝底に損傷を与える場合があるという問題点があった。又、構造材の端面側からナットを入れる構成のナットと構造材は、構造材のアリ溝の溝幅が極めて大きいか若しくは強度の弱い小さなナットのみしか用いることができず、ナットの雌ねじ孔も小径であるという問題点があった。
本発明は上記諸事情に鑑みて創案されたもので、ナット上端に側方に突出するフランジ部を設け、構造材のアリ溝のうちナット着座部側壁にナット挿入補助溝を凹設し、構造材のアリ溝に側面側開口若しくは端面側開口のいずれか所望側からナットを挿入し得ることができると共にアリ溝の溝幅をナットが着座部可能な必要最小限にして構造材の側面に穿孔を貫設可能にしたナットおよび構造材を提供することを目的とする。
【0004】
【課題を解決するための手段】
上記目的を達成するために本願発明のうち請求項1記載の発明は、長尺の構造材の側面に開口形成されたスロット状アリ溝に挿入されるナットにおいて、側面上端に垂直な摺接面を残してこの摺接面の下方を横方向に切り欠いて上端にフランジ部を対向して形成し、このフランジ部の下方には平坦な下面を有する下方突出部を連設し、横方向中心には雌ねじ孔を上下方向に貫設したことを特徴とする。
請求項2記載の発明は、内向フランジ部を具備したナット挿入口を長手方向に沿って側面に開設し、ナット着座部を内側に設けたスロット状アリ溝を少なくとも1以上設けてなる長尺の構造材において、請求項1記載のナットを前記ナット挿入口より傾斜させて挿入すると、前記ナットのフランジ部を填め込み可能なナット挿入補助溝を前記ナット着座部の少なくとも一方の側壁下部に凹設し、このナット挿入補助溝の溝底と対向する前記内向フランジ部下面内端縁との直線距離Nが前記ナットの上面横幅Wより僅かばかり長くなるように形成され、前記ナット下面が前記スロット状アリ溝の溝底と当接せず、前記ナット着座部のうち前記ナット挿入補助溝の下方側壁に支承されるように、前記スロット状アリ溝の溝底横幅が前記ナット下面横幅よりも狭く形成されてなることを特徴とする。
請求項3記載の発明は、上記ナット着座部のうちナット挿入補助溝の下方側壁が、段部を有してスロット状アリ溝の溝底に向けて内傾して形成されてなることを特徴とする。
【0005】
【発明の実施の形態】
以下、図を参照にして本発明の実施例について説明する。
【実施例1】
図1はナットの斜視図、図2はナットの正面図、図3はナットの側面図である。これらの図において、ナット1は正背視が略T字形で、平視方形状に形成されている。詳しくは、平坦な上面2に対して垂直な摺接面3、4を左右両側に対設し、この摺接面3、4の下方は切り欠きを設け、上面2の両側方に突出する1対のフランジ部5、6を形成している。フランジ部5、6の下方には垂直な側面7、8と平坦な下面9を有する下方突出部10を設け、端面11は上下面2、9に対して垂直な平坦面に形成されている。下方突出部10は、側壁7、8の下端にアール状部12を有して下面9と連続している。上面2及び下面9の横幅方向中央位置には雌ねじ孔13が上下方向に貫通して設けられている。
【0006】
【実施例2】
図4を参照にしてナットの実施例について説明する。説明を簡単にするために図1〜図3と同様の作用をなす部分は同一符号を用いて説明する。ナット1は縦方向に著しく長く形成し、雌ねじ孔13、13を縦方向に所定距離離隔して上下方向に貫設している。後述する構造材14のアリ溝15に、ナット挿入口16よりナット1を一側方に傾斜させて挿入することができる。他の構成は前述の図1〜図3に示される実施例1と同様であるので、説明を省略する。
【0007】
【実施例3】
図5は構造材の斜視図、図6は縦断面図であって、これらの図において構造材14は一方向に長い棒状に形成され、縦方向(長手方向)に沿って延びるアリ溝15が設けられている。構造材14の側面にはアリ溝15のナット挿入口16が縦方向に沿って開設されている。ナット着座部17は、対向する側壁18間距離がナット上面2の横幅Wに対応するように形成され、ナット着座部17にナット1を挿入すると、ナット1がナット着座部17にて縦方向に摺動可能で、水平方向に回転しないように形成されている。側壁18の上端には内向フランジ部19を対設し、この内向フランジ部19間に形成された空隙をナット挿入口16となしている。ナット着座部17の側壁18にはナット挿入補助溝20、21を対向する位置に凹設している。ナット挿入補助溝20、21は、ナット1のフランジ部5、6の形状と対応する形状に窪ませて形成されている。また、ナット挿入補助溝20、21の形成位置は、ナット挿入補助溝20、21の溝底と対向する内向フランジ部19の下面内端縁との直線距離Nが、ナット上面2の横幅Wより僅かばかり長くなる位置に形成されている。ナット着座部17のうちナット挿入補助溝20、21より下方の側壁は、ナット1のアール状部12よりも半径の大きいアール状に形成され、溝底22の横幅はナット着座部17の横幅よりも狭小に形成されている。このように形成したのは、ナット1をナット着座部17に挿入しやすく、且つナット下面9が溝底22と当接しないようにナット1をアリ溝15に装着するためである。
【0008】
次に図7〜図9を参照にして、図1〜図3に示されるナット1と構造材14の使用方法について説明する。まず、図7(a)〜(e)を参照にしてナットのアリ溝への挿入方法を説明する。図7(a)に示すように、ナット挿入口16よりフランジ部5がフランジ部6よりも下方に位置するようにナット1を傾斜させてナット挿入口16に挿入し、次に、図7(b)に示すようにフランジ部5をナット挿入補助溝20に填め込んでアリ溝15にナット1を投入する。ナット上面2の横幅Wはナット挿入補助溝20、21と対向する内向フランジ部19下面内端縁との直線距離Nより僅かばかり短く形成されているので、図7(c)及び(d)に示すように、ナット1はナット挿入口16よりナット着座部17に落とし込まれる。溝底22は、その両側がナット1のアール状部12より大径のアール状に形成されているため、図7(e)に示すようにナット1は、下面9が溝底22に当接することなく隙間24を介在させてナット着座部17に配置される。図8に示すように、連結金具25を構造材14の外側面に当接し、ボルト26を連結金具25の穿孔及びナット挿入口16を貫通して雌ねじ孔13に螺着すると、ボルト26の回転によりボルト26はナット1の雌ねじ孔13内を下降し、ナット1はナット着座部17内を上昇する。ナット上面2が内向フランジ部19の下面と当接し、ボルト26の下端は溝底22と当接することなくナット1はアリ溝15に装着され、図9に示すように2本の構造材14、14は、ナット1、ボルト26及び連結金具25により固定的に接続される。
このように、本発明のナットと構造材は、ナット1のフランジ部5、6の何れか一方をナット挿入補助溝20、21の何れか一方に填め込むように、ナット1を傾斜させてナット挿入口16より挿入しアリ溝15に装着するように構成したので、ナット着座部17の側壁18間距離をナット1の上面横幅Wと略同一長さに設定し、構造材14にアリ溝15よりなる空洞部の横幅が狭く形成され、構造材14の強度が向上する。
又、ナット着座部17の側壁18間距離がナット1の上面横幅Wに対応させて形成されているので、ボルト26を雌ねじ孔13に挿入し回転してもナット1は回転しない。従って、ボルト26は、ナット1に容易に螺着可能で、極めて簡単に締着作業を行い得る。又、予めナット1が溝底22に当接していないこと及びナット1がナット着座部17で水平方向に回転しないことより、ボルト26の下端は溝底22に当接するまでアリ溝15内に挿入する必要はなく、ボルト26は従来のボルトよりも長さの短いもので足りる。又、溝底22はボルト26の下端の突き当たりによる損傷が生じることがない。
【0009】
図10に示すように、ナット1の上面2を下側にし、構造材14のアリ溝15の端面側開口からナット1を挿入して装着することもできる。
又、図11に示すように、ナット1を構造材14のアリ溝15の端面側開口からフランジ部5、6が側壁18と垂直な位置関係となるように挿入することもできる。
又、図12に示すように、公知の四角ナット28を構造材14のアリ溝15の端面側開口から挿入することもできる。
【0010】
【実施例4】
図13を参照にして本願発明構造材の実施例について説明する。図5〜図12に示される構造材と異なる点は、アリ溝15aが一方の側壁18にのみナット挿入補助溝20を設けた点である。本発明のナットをナット着座部17に挿入の際に、ナット挿入補助溝20に向かってナットを下傾させて装着する。
【0011】
【実施例5】
図14を参照にして本発明構造材の実施例について説明する。図5〜図12に示される構造材と異なる点は側壁18のうちナット挿入補助溝20、21より下方の側壁のアール状部に段部27を形成した点である。ナット下面は段部27に支承されて溝底22に当接しない。
【0012】
構造材14は、図4〜図6及び図9に示す四角柱状棒状体の一側面にのみ開口する1のアリ溝15を設けているものに限定せず、図15に示すように断面四角形の棒状体の4側面にナット挿入口を夫々開口させて縦方向に沿ってアリ溝15を形成したものや、図16に示すように対向する2側壁にナット挿入補助溝を凹設したアリ溝15と前述の図13に示されている一側壁にのみナット挿入補助溝を凹設したアリ溝15a及び公知のアリ溝23を設けたもの等が考えられ、構造材14はナット挿入補助溝を有し側壁にナット挿入口16を開口する少なくとも1のアリ溝15、15aを設けていれば断面形状は問わない。
【0013】
【発明の効果】
本発明は、構造材の外側面に形成したナット挿入口よりナットを傾斜して挿入可能で、しかもアリ溝のナット着座部の側壁間距離はナット上面横幅に対応する長さに形成され、ナットのフランジ部形状に対応したナット挿入補助溝を側壁の対向する位置に凹設して形成されているので、従来の構造材と比較してアリ溝の溝幅が著しく狭く、側面(横方向)からの圧力に対して強く、側面に穿孔が可能であるという効果がある。
又、ナット着座部の下部が溝底に向け内傾し溝幅がナット下面より狭く形成されているため、ナットはその下面が溝底に当接せずナット着座部の側壁に支承され、しかもナット着座部の側壁間距離がナット上面横幅Wと対応しているため、ボルト下端を溝底に突き当たらせることなく、ナットを略固定状態でナットに螺着でき、組立作業性が向上するという効果がある。
【図面の簡単な説明】
【図1】ナットの斜視図である。
【図2】ナットの正面図である。
【図3】ナットの側面図である。
【図4】ナットを構造材に挿入しようとする状態を示す説明図である。
【図5】構造材の斜視図である。
【図6】構造材の正面図である。
【図7】ナットをアリ溝へ挿入する方法を経時的に示す説明図である。
【図8】構造材のアリ溝にナットを装着した状態を示す説明図である。
【図9】ナット、ボルト及び連結金具を用いて2本の構造材を接続固着した状態を示す説明図である。
【図10】図1〜図3に示されるナットを上下逆さにして構造材のアリ溝に装着した状態を示す説明図である。
【図11】図1〜図3に示されるナットを構造材のアリ溝に挿入した状態を示す説明図である。
【図12】公知の四角ナットをアリ溝に挿入した状態を示す説明図である。
【図13】構造材の正面図である。
【図14】構造材の正面図である。
【図15】構造材の縦断面図である。
【図16】構造材の縦断面図である。
【符号の説明】
1 ナット
2 上面
3、4 掴接面
5、6 フランジ部
7、8 側面
9 下面
10 下方突出部
13 雌ねじ孔
14 構造材
15、15a アリ溝
16 ナット挿入口
17 ナット着座部
18 側壁
19 内向フランジ部
20、21 ナット挿入補助溝
22 溝底
27 段部
N ナット補助溝の溝底と対向する内向フランジ部下面内端縁との直線距離
W ナットの上面横幅
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a nut and a long structural material for assembling a frame of various apparatuses or various machine housings, machine covers, doors, etc. using the nut, and more specifically, a nut established on the side of the long structural material. The present invention relates to a nut and a structural material for inserting a nut from an insertion port and connecting it to another structural material or / and a machine member using a bolt or a coupling metal fitting.
[0002]
[Prior art]
Conventionally, for example, Japanese Patent Laid-Open No. 2000-18228 discloses a configuration in which a slot insertion dovetail slot insertion opening is provided on the side of a long structural member, a nut is inserted through the nut insertion opening, and the nut is mounted in the dovetail groove. There are those described in Japanese Patent Laid-Open No. 7-293536 and Japanese Utility Model Laid-Open No. 6-28324. In the invention described in Japanese Patent Laid-Open No. 2000-18228, a hex nut is used as a nut, and an opening for inserting a nut narrower than the width of two opposing nuts of the hex nut is provided in the longitudinal direction on the side of a long structural material. The nut insertion assisting portion is formed in a recessed manner on at least one side wall of the nut seating portion that is opened along the nut insertion portion and has a groove width corresponding to the width of the nut 2 surface that communicates with the nut insertion opening. The invention described in Japanese Patent Laid-Open No. 7-293536 has a nut insertion port (upper edge portion) provided with an inward flange portion, and a lower portion provided with a step portion having the same width as the nut insertion port (upper edge portion). A nut for mounting in a T-groove provided with a bottom portion, and a flange portion protruding sideways by providing a step on the left and right sides of the flat upper surface exposed from the nut insertion opening (upper edge portion) of the T-groove The lower surface of the flange portion is cut out to form a substantially T-shaped cross section, and the front and rear end portions are cut out to form a mounting portion for fitting the elastic piece, and this mounting portion is attached to the side. With the elastic piece fitted, and the elastic piece compressed inward, the nut and the elastic piece are inserted with the nut inclined to the long material nut insertion port, and the top surface of the nut flange is the inward flange of the nut insertion port. It is formed so as to come into pressure contact with the elastic surface of the elastic piece by the elastic restoring force of the elastic piece. The invention described in Japanese Utility Model Publication No. 6-28324 is a structural material having slot-shaped dovetails for inserting standard square nuts, and is a groove in which the corners of the square nuts can be fitted into the left and right side walls of the T-groove. Is formed in a recessed manner.
Further, as described in Japanese Patent Application Laid-Open No. 11-280731 and Japanese Utility Model Publication No. 7-35813, a nut having a vertical width corresponding to the nut insertion hole is inserted into the slot-shaped dovetail groove without being inclined from the nut insertion hole. And the thing of the structure which rotates a nut 90 degree in a horizontal direction in a dovetail groove | channel, and is mounted is proposed.
In addition, slot-shaped ant, such as those described in JP-A-7-83223, JP-A-6-235212, JP-A-2000-205228, JP-A-2000-170732, and JP-T-8-503056. A structure has been proposed in which a nut is inserted by sliding along the longitudinal direction (longitudinal direction) of the structural material from the end face opening of the groove, a bolt is inserted from the opening on the side face, and the nut is fixed by bolting. ing.
[0003]
[Problems to be solved by the invention]
Of the above conventional examples, those described in JP 2000-18228, JP 7-293536, and JP-A 6-28324 have wide dovetail grooves and are perpendicular to the longitudinal direction of the structural material. In order to enable drilling, the distance between adjacent dovetail grooves must be increased, and as a result, the lateral width of the side of the structural material must be significantly increased, resulting in an increase in the weight of the structural material. In addition, the cost is increased, and it is difficult to attach the end cap to the end of the structural material.
Moreover, since the clearance gap between a nut side surface and a dovetail groove side wall becomes too large in the thing of Unexamined-Japanese-Patent No. 2000-18228, Unexamined-Japanese-Patent No. 11-280731, and Unexamined-Japanese-Patent No. 7-35813, a bolt is nut There is a possibility that the nut rotates together with the bolt when it is attached to the bolt, and the position of the nut in the dovetail groove becomes unstable.
Also, in the structure in which the nut is inserted from the opening on the end surface side of the structural material of the slot-shaped dovetail groove, the dovetail groove must be opened on either one of the front and rear surfaces of the structural material. There was a problem that the nut could not be inserted into.
In addition, when the nut and the structural material of the conventional example are inserted into the dovetail groove, the bottom surface of the nut comes into contact with the groove bottom of the dovetail groove, and when the bolt is screwed into the female screw hole of the nut, However, there is a problem that the groove bottom may be damaged. In addition, the nut and the structural material, which are configured to insert the nut from the end surface side of the structural material, can use only a small nut with a very large groove width or a weak strength of the structural material. There was a problem of small diameter.
The present invention was devised in view of the above circumstances, and provided with a flange portion that protrudes laterally at the upper end of the nut, and a nut insertion auxiliary groove is recessed in the side wall of the nut seating portion of the dovetail groove of the structural material. A nut can be inserted into the dovetail groove of the material from either the side opening or the end face opening, and the width of the dovetail groove is drilled on the side of the structural member with the minimum necessary for the nut to be seated. It is an object of the present invention to provide a nut and a structural material that can be penetrated.
[0004]
[Means for Solving the Problems]
To achieve the above object, the invention according to claim 1 of the present invention is a sliding contact surface perpendicular to the upper end of the side surface of a nut inserted into a slot-shaped dovetail groove formed in the side surface of a long structural material. The lower part of the sliding contact surface is notched in the horizontal direction, and a flange part is formed at the upper end so as to face the lower part. A downward projecting part having a flat lower surface is connected to the lower part of the flange part. Is characterized in that a female screw hole is vertically penetrated.
In the invention according to claim 2, a long slot formed by opening a nut insertion opening provided with an inward flange portion on a side surface along the longitudinal direction and providing at least one slot-shaped dovetail groove provided with a nut seating portion on the inner side. In the structural material, when the nut according to claim 1 is inserted at an inclination from the nut insertion port, a nut insertion auxiliary groove capable of fitting the flange portion of the nut is recessed in at least one side wall lower portion of the nut seating portion. In addition, a linear distance N between the inner bottom edge of the lower surface of the inward flange portion facing the groove bottom of the nut insertion auxiliary groove is slightly longer than the upper surface width W of the nut, and the lower surface of the nut is formed in the slot shape. The slot bottom lateral width of the slot-shaped dovetail is lower than the bottom surface of the nut so that it does not contact the dovetail bottom but is supported on the lower side wall of the nut insertion auxiliary groove in the nut seating portion. Characterized by comprising formed narrower than the width.
The invention according to claim 3 is characterized in that the lower side wall of the nut insertion auxiliary groove in the nut seating portion is formed to have a step portion and inwardly inclined toward the groove bottom of the slot-shaped dovetail groove. And
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[Example 1]
1 is a perspective view of the nut, FIG. 2 is a front view of the nut, and FIG. 3 is a side view of the nut. In these drawings, the nut 1 is substantially T-shaped when viewed from the front, and is formed in a planar view shape. Specifically, sliding contact surfaces 3 and 4 perpendicular to the flat upper surface 2 are provided on the left and right sides, and notches are provided below the sliding contact surfaces 3 and 4 so as to protrude on both sides of the upper surface 2. A pair of flange portions 5 and 6 are formed. A downward projecting portion 10 having vertical side surfaces 7 and 8 and a flat lower surface 9 is provided below the flange portions 5 and 6, and the end surface 11 is formed as a flat surface perpendicular to the upper and lower surfaces 2 and 9. The downward projecting portion 10 has a rounded portion 12 at the lower end of the side walls 7 and 8 and is continuous with the lower surface 9. A female screw hole 13 is provided through the upper surface 2 and the lower surface 9 in the center in the width direction so as to penetrate in the vertical direction.
[0006]
[Example 2]
An embodiment of the nut will be described with reference to FIG. In order to simplify the description, the same reference numerals are used to describe portions having the same functions as those in FIGS. The nut 1 is formed to be remarkably long in the vertical direction, and the female screw holes 13 and 13 are vertically provided at a predetermined distance apart in the vertical direction. The nut 1 can be inserted into the dovetail groove 15 of the structural member 14 to be described later from the nut insertion port 16 while being inclined to one side. Other configurations are the same as those of the first embodiment shown in FIGS.
[0007]
[Example 3]
FIG. 5 is a perspective view of the structural material, and FIG. 6 is a longitudinal sectional view. In these drawings, the structural material 14 is formed in a long bar shape in one direction, and a dovetail groove 15 extending in the longitudinal direction (longitudinal direction) is formed. Is provided. A nut insertion port 16 of the dovetail groove 15 is formed along the vertical direction on the side surface of the structural member 14. The nut seating portion 17 is formed so that the distance between the opposing side walls 18 corresponds to the lateral width W of the nut upper surface 2. When the nut 1 is inserted into the nut seating portion 17, the nut 1 is moved vertically in the nut seating portion 17. It is slidable and formed so as not to rotate in the horizontal direction. An inward flange portion 19 is provided at the upper end of the side wall 18, and a gap formed between the inward flange portions 19 serves as a nut insertion port 16. Nut insertion auxiliary grooves 20 and 21 are recessed in the side wall 18 of the nut seating portion 17 at positions facing each other. The nut insertion auxiliary grooves 20 and 21 are formed to be recessed into a shape corresponding to the shape of the flange portions 5 and 6 of the nut 1. The nut insertion auxiliary grooves 20 and 21 are formed at a position where the linear distance N between the bottom inner edge of the inward flange portion 19 facing the groove bottom of the nut insertion auxiliary grooves 20 and 21 is based on the lateral width W of the nut upper surface 2. It is formed at a slightly longer position. Side walls of the nut seating portion 17 below the nut insertion auxiliary grooves 20 and 21 are formed in a round shape having a larger radius than the round shape portion 12 of the nut 1, and the lateral width of the groove bottom 22 is greater than the lateral width of the nut seat portion 17. Is also narrowly formed. The reason for this is that the nut 1 can be easily inserted into the nut seat 17 and the nut 1 is mounted in the dovetail 15 so that the bottom surface 9 of the nut does not come into contact with the groove bottom 22.
[0008]
Next, a method of using the nut 1 and the structural material 14 shown in FIGS. 1 to 3 will be described with reference to FIGS. First, a method for inserting a nut into a dovetail groove will be described with reference to FIGS. As shown in FIG. 7A, the nut 1 is inclined and inserted into the nut insertion port 16 so that the flange portion 5 is positioned below the flange portion 6 from the nut insertion port 16, and then, FIG. As shown in b), the flange portion 5 is fitted into the nut insertion auxiliary groove 20 and the nut 1 is put into the dovetail groove 15. The lateral width W of the nut upper surface 2 is formed slightly shorter than the linear distance N between the inner flange of the inward flange portion 19 and the lower surface of the inward flange portion 19 facing the nut insertion auxiliary grooves 20, 21. As shown, the nut 1 is dropped into the nut seat 17 through the nut insertion port 16. Since both sides of the groove bottom 22 are formed in a rounded shape having a larger diameter than the rounded portion 12 of the nut 1, the bottom surface 9 of the nut 1 contacts the groove bottom 22 as shown in FIG. Without any gap 24, the nut seat 17 is disposed. As shown in FIG. 8, when the connection fitting 25 is brought into contact with the outer surface of the structural member 14 and the bolt 26 is penetrated through the connection fitting 25 and threaded through the nut insertion port 16 and screwed into the female screw hole 13, the rotation of the bolt 26 is performed. As a result, the bolt 26 moves down in the female screw hole 13 of the nut 1, and the nut 1 moves up in the nut seat 17. The nut upper surface 2 is in contact with the lower surface of the inward flange portion 19, the lower end of the bolt 26 is not in contact with the groove bottom 22, and the nut 1 is mounted in the dovetail groove 15. As shown in FIG. 14 is fixedly connected by the nut 1, the bolt 26, and the coupling metal 25.
As described above, the nut and the structural material of the present invention are formed by inclining the nut 1 so that either one of the flange portions 5 and 6 of the nut 1 is fitted into one of the nut insertion auxiliary grooves 20 and 21. Since it is configured to be inserted from the insertion port 16 and attached to the dovetail groove 15, the distance between the side walls 18 of the nut seating portion 17 is set to substantially the same length as the upper surface lateral width W of the nut 1, and the dovetail groove 15 The width of the hollow portion formed is narrow and the strength of the structural material 14 is improved.
Further, since the distance between the side walls 18 of the nut seating portion 17 is formed so as to correspond to the upper surface width W of the nut 1, the nut 1 does not rotate even if the bolt 26 is inserted into the female screw hole 13 and rotated. Therefore, the bolt 26 can be easily screwed to the nut 1 and can be tightened very easily. Further, since the nut 1 does not contact the groove bottom 22 in advance and the nut 1 does not rotate horizontally at the nut seating portion 17, the lower end of the bolt 26 is inserted into the dovetail groove 15 until it contacts the groove bottom 22. It is not necessary to do so, and the bolt 26 may be shorter than the conventional bolt. Further, the groove bottom 22 is not damaged by the bottom end of the bolt 26.
[0009]
As shown in FIG. 10, the nut 1 can be mounted by inserting the nut 1 from the opening on the end surface side of the dovetail groove 15 of the structural member 14 with the upper surface 2 of the nut 1 on the lower side.
As shown in FIG. 11, the nut 1 can also be inserted from the opening on the end face side of the dovetail groove 15 of the structural member 14 so that the flange portions 5 and 6 are in a vertical positional relationship with the side wall 18.
In addition, as shown in FIG. 12, a known square nut 28 can be inserted from the end face side opening of the dovetail groove 15 of the structural member 14.
[0010]
[Example 4]
An embodiment of the structural material of the present invention will be described with reference to FIG. The difference from the structural material shown in FIGS. 5 to 12 is that the dovetail groove 15 a is provided with a nut insertion auxiliary groove 20 only on one side wall 18. When the nut of the present invention is inserted into the nut seating portion 17, the nut is mounted while being inclined downward toward the nut insertion auxiliary groove 20.
[0011]
[Example 5]
An embodiment of the structural material of the present invention will be described with reference to FIG. The difference from the structural material shown in FIGS. 5 to 12 is that a stepped portion 27 is formed in the rounded portion of the side wall 18 below the nut insertion auxiliary grooves 20 and 21. The bottom surface of the nut is supported by the step portion 27 and does not contact the groove bottom 22.
[0012]
The structural material 14 is not limited to the one provided with one dovetail groove 15 opened only on one side surface of the rectangular columnar rod-shaped body shown in FIGS. 4 to 6 and FIG. A dovetail groove 15 is formed along the longitudinal direction by opening nut insertion openings on the four side surfaces of the rod-shaped body, or a dovetail groove 15 in which nut insertion auxiliary grooves are recessed in two opposing side walls as shown in FIG. 13 and the aforementioned dovetail groove 15a in which a nut insertion auxiliary groove is provided only on one side wall shown in FIG. 13 and a known dovetail groove 23 are conceivable. The structural member 14 has a nut insertion auxiliary groove. The cross-sectional shape is not limited as long as at least one dovetail groove 15 or 15a that opens the nut insertion port 16 is provided on the side wall.
[0013]
【The invention's effect】
In the present invention, a nut can be inclined and inserted from a nut insertion port formed on the outer side surface of the structural material, and the distance between the side walls of the nut seat portion of the dovetail groove is formed to a length corresponding to the lateral width of the nut upper surface. Since the nut insertion auxiliary groove corresponding to the flange shape of the groove is formed in a recessed position at the opposite side of the side wall, the groove width of the dovetail groove is extremely narrow compared to conventional structural materials, and the side (lateral) It has an effect that it is strong against the pressure from the side and can be perforated on the side surface.
In addition, since the lower part of the nut seat is inclined inward toward the groove bottom and the groove width is narrower than the bottom surface of the nut, the bottom surface of the nut is not in contact with the bottom of the groove and is supported on the side wall of the nut seat. Since the distance between the side walls of the nut seating portion corresponds to the width W on the top surface of the nut, the nut can be screwed onto the nut in a substantially fixed state without causing the bottom end of the bolt to abut against the groove bottom, and the assembly workability is improved. effective.
[Brief description of the drawings]
FIG. 1 is a perspective view of a nut.
FIG. 2 is a front view of a nut.
FIG. 3 is a side view of the nut.
FIG. 4 is an explanatory view showing a state in which a nut is to be inserted into a structural material.
FIG. 5 is a perspective view of a structural material.
FIG. 6 is a front view of a structural material.
FIG. 7 is an explanatory view showing a method of inserting the nut into the dovetail over time.
FIG. 8 is an explanatory view showing a state in which a nut is mounted in a dovetail groove of a structural material.
FIG. 9 is an explanatory view showing a state in which two structural members are connected and fixed using nuts, bolts, and connecting metal fittings.
FIG. 10 is an explanatory view showing a state in which the nut shown in FIGS. 1 to 3 is turned upside down and installed in a dovetail groove of a structural material.
FIG. 11 is an explanatory view showing a state where the nut shown in FIGS. 1 to 3 is inserted into a dovetail groove of a structural material.
FIG. 12 is an explanatory view showing a state in which a known square nut is inserted into a dovetail groove.
FIG. 13 is a front view of a structural material.
FIG. 14 is a front view of a structural material.
FIG. 15 is a longitudinal sectional view of a structural material.
FIG. 16 is a longitudinal sectional view of a structural material.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Nut 2 Upper surface 3, 4 Grasping contact surface 5, 6 Flange part 7, 8 Side surface 9 Lower surface 10 Lower protrusion part 13 Female screw hole 14 Structural material 15, 15a Dovetail groove 16 Nut insertion port 17 Nut seat part 18 Side wall 19 Inward flange part 20, 21 Nut insertion auxiliary groove 22 Groove bottom 27 Stepped portion N Linear distance between the inner bottom edge of the bottom face of the inward flange facing the groove bottom of the nut auxiliary groove W Upper side width of the nut

Claims (1)

側面上端に垂直な摺接面を残してこの摺接面の下方を横方向に切り欠いて上端にフランジ部を対向して形成し、このフランジ部の下方には平坦な下面を有する下方突出部を連設し、横方向中心位置には雌ねじ孔を上下方向に貫設したことを特徴とするナットを装着すべき構造材であって、
内向フランジ部を具備したナット挿入口を長手方向に沿って側面に開設し、ナット着座部を内側に設けたスロット状アリ溝を少なくとも1以上設けてなる長尺の構造材において、
前記ナットを前記ナット挿入口より下方突出部がナット着座部に向いた状態で傾斜させて挿入すると、前記ナットのフランジ部を填め込み可能なナット挿入補助溝を前記ナット着座部の少なくとも一方の側壁下部に凹設し、
このナット挿入補助溝の溝底と対向する前記内向フランジ部下面内端縁との直線距離Nが前記ナットの上面横幅Wより僅かばかり長くなるように形成され、
ナット着座部の側壁間距離がナットの上面横幅Wと略同一長さであり、
前記ナット下面が前記スロット状アリ溝の溝底と当接せず、前記ナット着座部のうち前記ナット挿入補助溝の下方側壁に支承されるように、前記スロット状アリ溝の溝底横幅が前記ナット下面横幅よりも狭く形成されており、
上記ナット着座部のうちナット挿入補助溝の下方側壁が、段部を有してスロット状アリ溝の溝底に向けて内傾して形成されてなることを特徴とする構造材。
A lower projecting portion having a flat lower surface below the flange portion, with a flange portion facing the upper end formed by horizontally cutting away the lower portion of the sliding contact surface while leaving a vertical sliding contact surface at the upper end of the side surface. Is a structural material to be fitted with a nut characterized by having a female screw hole penetrating vertically at the center position in the lateral direction,
In a long structure material in which a nut insertion opening provided with an inward flange portion is opened on a side surface along the longitudinal direction, and at least one slot-shaped dovetail groove provided with a nut seating portion inside is provided,
When the nut is inserted while being inclined with the downward projecting portion facing the nut seating portion from the nut insertion port, a nut insertion auxiliary groove capable of fitting the flange portion of the nut is provided on at least one side wall of the nut seating portion. Recessed at the bottom,
A linear distance N between the inner bottom edge of the lower surface of the inward flange portion facing the groove bottom of the nut insertion auxiliary groove is formed to be slightly longer than the upper surface lateral width W of the nut,
The distance between the side walls of the nut seating portion is substantially the same length as the upper surface width W of the nut,
The width of the bottom of the slot-shaped dovetail groove is such that the bottom surface of the nut does not contact the bottom of the slot-shaped dovetail groove and is supported on the lower side wall of the nut insertion auxiliary groove of the nut seating portion. It is formed narrower than the width on the bottom of the nut ,
A structural material characterized in that the lower side wall of the nut insertion auxiliary groove in the nut seating part is formed to have a stepped portion and inwardly inclined toward the groove bottom of the slot-shaped dovetail groove .
JP2002215879A 2002-06-19 2002-06-19 Structural material Expired - Lifetime JP4198407B2 (en)

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