JPH0531365B2 - - Google Patents
Info
- Publication number
- JPH0531365B2 JPH0531365B2 JP62004407A JP440787A JPH0531365B2 JP H0531365 B2 JPH0531365 B2 JP H0531365B2 JP 62004407 A JP62004407 A JP 62004407A JP 440787 A JP440787 A JP 440787A JP H0531365 B2 JPH0531365 B2 JP H0531365B2
- Authority
- JP
- Japan
- Prior art keywords
- metal duct
- conductive
- joint
- bolt
- surface treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002184 metal Substances 0.000 claims description 76
- 229910052751 metal Inorganic materials 0.000 claims description 76
- 239000000463 material Substances 0.000 claims description 66
- 238000004381 surface treatment Methods 0.000 claims description 43
- 238000003780 insertion Methods 0.000 claims description 31
- 230000037431 insertion Effects 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 13
- 238000005304 joining Methods 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims 2
- 230000035515 penetration Effects 0.000 claims 1
- 238000000576 coating method Methods 0.000 description 14
- 239000011248 coating agent Substances 0.000 description 11
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 239000004744 fabric Substances 0.000 description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 229920000877 Melamine resin Polymers 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は金属ダクト材の継ぎ方法に係り、絶縁
電線及び各種ケーブルを纏めて配線支持させるの
に使用される断面ほぼ溝形形状の金属ダクト材に
おいて、敷設現場での簡易迅速な接続を図り得る
と同時に、耐候性、防錆性のための表面処理膜が
施された金属ダクト材相互の電気的導通が確保で
きるよう改良された金属ダクト材の継ぎ方法に関
する。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a method of joining metal duct materials, and relates to a metal duct having a substantially groove-shaped cross section and used for collectively supporting insulated wires and various cables. Improved metal duct that enables easy and quick connection at the installation site, and at the same time ensures electrical continuity between the metal duct materials, which are coated with a surface treatment film for weather resistance and rust prevention. Concerning the method of joining materials.
（従来の技術）
従来から、レースウエイと称される幅が５cm以
下の金属製線ぴとして、あるいはそれ以上の幅で
の金属ダクトとしての断面ほぼ溝形状の金属ダク
ト材は種々の形式、構造のものが提案されてお
り、その多くは、いずれも、敷設現場での環境の
変化に対処できるよう、耐候性、防錆性、耐塩
性、耐湿性、耐薬品性等を考慮して特殊な表面処
理が施されている。例えば、メラミン焼付塗装で
あり、防錆力の優れた粉体塗装及び電着塗装仕上
げ（エポキシ樹脂系塗装）であり、その他の合成
樹脂塗装である。ところが、これらの特殊な表面
処理膜は導電性がなく、特に表面処理膜を接続敷
設させる金属ダクト材相互間には導電性がないた
めに、配線支持される絶縁電線及びケーブルに生
じることがある漏洩電流を回避できず、極めて不
都合であつた。(Prior Art) Conventionally, metal wires with a width of 5 cm or less, called raceways, or metal ducts with a width of more than 5 cm, which have a substantially groove-shaped cross section, have been used in various types and structures. Many of them have special features that take into consideration weather resistance, rust resistance, salt resistance, moisture resistance, chemical resistance, etc., in order to cope with changes in the environment at the installation site. Surface treatment has been applied. Examples include melamine baking coating, powder coating and electrodeposition coating (epoxy resin coating) with excellent anti-rust properties, and other synthetic resin coatings. However, these special surface treatment films do not have conductivity, and in particular, there is no conductivity between the metal duct materials to which the surface treatment films are connected and installed, so electrical conductivity may occur in the insulated wires and cables that support the wiring. This was extremely inconvenient because leakage current could not be avoided.
そこで従来では、この表面処理膜を突き破つて
連結部材相互の導電性を図る連結装置が提案され
ている（実公昭51−5757号公報参照）。この装置
は、ナツトの当接面に形成した針突起を表面処理
膜に付きあてて、この針突起が表面処理膜を突き
破り、このナツトを通じて電気的接続をするもの
である。 Therefore, a connecting device has been proposed in which the surface treatment film is penetrated to achieve mutual conductivity between the connecting members (see Japanese Utility Model Publication No. 5757/1983). In this device, a needle protrusion formed on the abutting surface of a nut is brought into contact with the surface treatment film, and the needle protrusion pierces the surface treatment film to establish an electrical connection through the nut.
また、この他、連結部材相互を簡単、且つ確実
に連結するものとして、特開昭54−150695号公報
に記載された発明がある。この発明は、ケーブル
ラツク端部を相互に重ね合わせて連結すること
で、ケーブルラツクの連結作業を簡素化し、確実
にすることを目的としたものである。 In addition to this, there is an invention described in Japanese Patent Application Laid-Open No. 150695/1983 that connects connecting members easily and reliably. The object of this invention is to simplify and ensure the connection work of cable racks by overlapping and connecting the ends of the cable racks.
（発明が解決しようとする問題点）
前者の連結装置は、針突起が塗料等の皮膜を突
き破るものであるが、最近の塗料は、技術が発達
して膜厚を厚くすることが可能であり、また、皮
膜表面の硬度が高くなるものも多く使用されてい
る。このことから、このような厚膜タイプや硬度
の高い塗膜を針突起で突き破ることが困難にな
り、充分な電気的接触が得られない虞があつた。(Problem to be Solved by the Invention) In the former type of connecting device, the needle protrusion breaks through the film of paint, etc., but with recent advances in paint technology, it is possible to increase the film thickness. In addition, many coatings with high hardness on the surface are also used. This makes it difficult for the needle protrusion to break through such a thick film type or highly hard coating, and there is a possibility that sufficient electrical contact may not be obtained.
しかも、この連結装置は、針突起を設けたナツ
トを使用するために、連結装置に多くの加工が必
要である。すなわち、重ねて連結する部材のう
ち、内部に位置する連結部材表面に凹部を形成し
てナツトを固定する。一方、外側に位置する部材
の表面から内部にボルトを挿通し、このボルトを
部材内部でナツトにねじ込む。そして、ボルトの
先端が内部に位置する連結部材凹部に圧接する作
用でナツトの針突起を外側に位置する部材の内部
側面に圧接するものである。したがつて、この連
結装置を使用するには、連結部材の凹部にナツト
をセツトし、この状態で連結部材を部材内部に挿
入し、更に、部材の表面から部材内部のナツトを
目がけてボルトを挿入するといつた多くの作業が
必要である。この結果、多数本の部材を連結しな
ければならない金属ダクト材の連結装置として
は、極めて作業が面倒で、連結作業に支障を来た
すものでもあつた。 Moreover, since this connecting device uses a nut provided with a needle protrusion, a lot of processing is required for the connecting device. That is, a concave portion is formed on the surface of the connecting member located inside of the members to be overlapped and connected, and the nut is fixed. On the other hand, a bolt is inserted from the surface of the outer member into the inside, and this bolt is screwed into a nut inside the member. The tip of the bolt presses against the concave portion of the connecting member located inside, thereby pressing the needle protrusion of the nut against the inner side surface of the member located on the outside. Therefore, to use this coupling device, set the nut in the recess of the coupling member, insert the coupling member into the member in this state, and then insert the bolt from the surface of the member toward the nut inside the member. A lot of work is required when inserting the . As a result, as a connecting device for metal duct materials that requires connecting a large number of members, the work is extremely troublesome, and it also poses a problem in the connecting work.
また、塗膜を針突起で突き破る箇所は、連結す
る部材の内側面であることから、作業者が充分な
導通状態になつたか否かを判断することは難しい
ものであつた。 In addition, since the point where the needle protrusion pierces the coating film is the inner surface of the connecting member, it is difficult for the operator to judge whether or not sufficient conduction has been achieved.
一方、後者のケーブルラツク相互を連結するも
のでは、複数の取付ボルトを連結板でつなぐこと
で、連結用の部品点数を少なくし、接続方法の合
理化を図ることは可能でも、ケーブルラツクや金
属ダクト材相互を電気的に接続することはできな
いものである。 On the other hand, in the latter case, which connects cable racks to each other, it is possible to reduce the number of connecting parts and streamline the connection method by connecting multiple mounting bolts with a connecting plate, but it is possible to reduce the number of connecting parts and streamline the connection method. It is not possible to electrically connect materials to each other.
そこで、本発明は、従来存した問題点を解消す
べくなされたもので、金属ダクト材相互の簡単な
接続と同時に、確実な電気的導通を実現でき、し
かも、耐蝕性に優れて電気的導通を長期間保つこ
とができる金属ダクト材の継ぎ方法の提供を目的
とする。 Therefore, the present invention was made to solve the problems that existed in the past.It is possible to easily connect metal duct materials to each other and at the same time achieve reliable electrical continuity, and also to have excellent corrosion resistance and electrical continuity. The purpose of the present invention is to provide a method for joining metal duct materials that can maintain the quality for a long period of time.
（問題点を解決するための手段）
本発明は、上述した問題点を解決するため、そ
の継ぎ方法は、非導電性の表面処理膜が施された
金属ダクト材相互を接続するに際し、ボルト挿通
孔に強制嵌入してこのボルト挿通孔を拡開し、貫
挿部分の表面処理膜を破断する角根部を設けた導
電性の継ぎボルトと、この継ぎボルトへのねじ込
みに伴なつて圧接する表面処理膜を自身の周囲に
押しやるスクリユー形状の破断突部を形成してあ
る導電性のナツトとによる締結手段を介して行な
い、金属ダクト材相互を導電状態とすることを特
徴とする。(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a method for connecting metal duct materials coated with a non-conductive surface treatment film by inserting bolts into the metal ducts. A conductive connecting bolt with a square root that forcibly fits into the hole to expand the bolt insertion hole and rupture the surface treatment film of the inserted part, and a surface that comes into pressure contact with the connecting bolt as it is screwed into the connecting bolt. It is characterized in that the metal duct materials are brought into a conductive state by means of a fastening means using a conductive nut having a screw-shaped fracture protrusion that pushes the treated film around itself.
（作用）
本発明の金属ダクト材の継ぎ方法にあつては、
金属ダクト材を敷設すべき現場において、金属ダ
クト材相互を接続するとき、その接続部位での金
属ダクト材に施されている表面処理膜を破断して
金属ダクト材相互での電気的導通を図る。(Function) In the method of joining metal duct materials of the present invention,
When connecting metal duct materials to each other at a site where metal duct materials are to be laid, the surface treatment film applied to the metal duct materials at the connection site is ruptured to establish electrical continuity between the metal duct materials. .
その際、表面処理膜の破断は、金属ダクト材相
互を接続する導電性ある締結手段によつて行なわ
れる。すなわち、ボルト挿通孔に強制嵌入してこ
のボルト挿通孔を拡開し、貫挿部分の表面処理膜
を破断する角根部を設けた導電性の継ぎボルト
と、この継ぎボルトへのねじ込みに伴なつて圧接
する表面処理膜を自身の周囲に押しやるスクリユ
ー形状の破断突部を形成してある導電性のナツト
とによつて破断され、これら継ぎボルト、ナツト
を介して直接あるいは間接に電気的ルートが形成
される。 At this time, the surface treatment film is broken by conductive fastening means that connects the metal duct materials. In other words, a conductive joint bolt is provided with a square root that is forcibly fitted into a bolt insertion hole to enlarge the bolt insertion hole and break the surface treatment film at the inserted portion, and a The surface treatment film is ruptured by a conductive nut with a screw-shaped rupture protrusion that pushes the surface treatment film around itself, and an electrical route is established directly or indirectly through these joint bolts and nuts. It is formed.
その結果、金属ダクト相互での電気的導通が得
られ、配線支持されるケーブルに生じることがあ
る漏洩電流を回避する。 As a result, electrical continuity between the metal ducts is obtained, avoiding leakage currents that can occur in cables that are wire supported.
すると、一方の金属ダクト材において表面処理
膜が破断されることで、導電性ある生地相互間で
介在されることになる締結手段を介して電気的ル
ートが形成される。 Then, the surface treatment film on one of the metal duct materials is broken, and an electrical route is formed through the fastening means interposed between the conductive fabrics.
その結果、金属ダクト材相互での電気的導通が
得られ、配線支持され絶縁電線及びケーブルに生
じることがある漏洩電流を回避する。 As a result, electrical continuity between the metal ducting materials is achieved, avoiding leakage currents that can occur in wire-supported insulated wires and cables.
（実施例）
以下、図面を参照して本発明の実施例を説明す
る。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.
図において示される符号１は、本発明方法によ
つて相互に接続される金属ダクト材であり、図示
のように、基本的には、平行状で相対峙した左右
側板を底板で連結した断面ほぼ溝形状を呈し、幅
が５cm以下のレースウエイと称される金属製線ぴ
としてあるいはそれ以上の幅での金属製ダクトと
して使用される。この金属ダクト材１は、左右側
板、底板のいずれの表面にも、耐候性、防錆性、
耐塩性、耐湿性、耐薬品性等を図るための表面処
理膜２が施されている。この表面処理膜２は、従
来と同様に、メラミン焼付塗装、粉体塗装及び電
着塗装仕上げ（エポキシ樹脂系塗装）、その他の
合成樹脂塗装のものであり、第２図に示すよう
に、後述するボルト挿通孔１１あるいは継ぎ長孔
１３の内面にも表面処理膜２が施されている。 The reference numeral 1 shown in the figure is a metal duct material that is interconnected by the method of the present invention, and as shown in the figure, the cross section is basically approximately the cross section of parallel left and right side plates connected by a bottom plate. It has a groove shape and is used as a metal wire called a raceway with a width of 5 cm or less, or as a metal duct with a wider width. This metal duct material 1 has weather resistance, rust prevention,
A surface treatment film 2 is applied to improve salt resistance, moisture resistance, chemical resistance, and the like. This surface treatment film 2 is, as in the past, coated with melamine baking, powder coating, electrodeposition coating (epoxy resin coating), or other synthetic resin coating, as shown in FIG. The surface treatment film 2 is also applied to the inner surface of the bolt insertion hole 11 or the joint elongated hole 13.
しかして、このように構成されている金属ダク
ト材１相互の接続に際しては、表面処理膜２を破
断する導電性ある締結手段１０を介して行なわれ
る。 Therefore, when the metal duct materials 1 configured as described above are connected to each other, the connection is performed via the conductive fastening means 10 that breaks the surface treatment film 2.
すなわち、締結手段１０は、金属ダクト材１の
端部相互を突き合せ状として接続させる外カツプ
リング式あるいは内カツプリング式の継ぎ金物１
２を介してねじ止めされる場合、また、金属ダク
ト材１の端部相互を重ね合せ状として接続させて
ねじ止めされる場合において、ボルト挿通孔１１
に強制嵌入してこのボルト挿通孔１１を拡開し、
貫挿部分の表面処理膜２を破断する角根部１５を
設けた導電性の継ぎボルト１４と、この継ぎボル
ト１４へのねじ込みに伴なつて圧接する表面処理
膜２を自身の周囲に押しやるスクリユー形状の破
断突部１７を形成してある導電性のナツト１６と
による締結手段を用いる。このねじ止め部品が表
面処理膜２を破断することで生地に接触し、導電
性ある金属ダクト材１端部の生地相互の電気的導
通を図る。 That is, the fastening means 10 is an outer coupling type or inner coupling type fitting 1 that connects the ends of the metal duct material 1 in abutting manner.
2, or when the ends of the metal duct material 1 are connected with each other in an overlapping manner and are screwed, the bolt insertion hole 11
Expand this bolt insertion hole 11 by force-fitting it into the
A conductive joint bolt 14 with a square root 15 that breaks the surface treatment film 2 at the penetrating portion, and a screw shape that pushes the surface treatment film 2 that comes into pressure contact with the joint bolt 14 as it is screwed into the joint bolt 14. A fastening means using a conductive nut 16 having a breakage protrusion 17 formed therein is used. This screwed part breaks the surface treatment film 2 and comes into contact with the fabric, thereby establishing electrical continuity between the fabrics at the ends of the conductive metal duct material 1.
次に、締結手段１０を用いての具体的方法例
を、実施例１乃至実施例10として説明する。 Next, specific method examples using the fastening means 10 will be described as Examples 1 to 10.
実施例 １
第１図及び第２図に示すように、金属ダクト材
１の端部における継ぎ部位左右にそれぞれ２個の
円形状のボルト挿通孔１１を開穿しておき、ま
た、端面が突き当て状となる端部での左右側板、
底板相互の外側面に当接装着される断面がほぼ溝
形を呈する外カツプリング式の継ぎ金物１２に、
ボルト挿通孔１１位置に合致するほぼ横長の長円
形状の継ぎ長孔１３を開穿する。なお、図に示す
ように、ボルト挿通孔１１及び継ぎ長孔１３は、
金属ダクト材１及び継ぎ金物１２夫々の左右側板
に設けられており、後述するボルト１４は金属ダ
クト材１の内方に丸山状の頭部が位置されるもの
として、配線されるケーブルの被覆の損傷防止を
図る。Example 1 As shown in FIGS. 1 and 2, two circular bolt insertion holes 11 are drilled on the left and right sides of the joint area at the end of the metal duct material 1, and the end surface is Left and right side plates at the ends that serve as patches,
An outer coupling type fitting 12 having a substantially groove-shaped cross section is fitted in contact with the outer surfaces of the bottom plates,
A substantially horizontally elongated joint elongated hole 13 that matches the position of the bolt insertion hole 11 is drilled. In addition, as shown in the figure, the bolt insertion hole 11 and the joint elongated hole 13 are
The bolts 14, which will be described later, are provided on the left and right side plates of the metal duct material 1 and the joint fittings 12, and their rounded heads are positioned inside the metal duct material 1. Try to prevent damage.
一方、ボルト挿通孔１１及び継ぎ長孔１３に合
致貫挿させる継ぎボルト１４のネジ部基部には、
継び長孔１３に貫挿するもその内縁に当接して空
転せず、かつ、ボルト挿通孔１１の内径に比し長
い対角線を有する断面がほぼ矩形状の角根部１５
を形成する。継ぎボルト１４自体は、図示のよう
に座金付きのナツト１６がねじ込まれて、金属ダ
クト材１、継ぎ金物１２を締結する。 On the other hand, at the base of the threaded part of the joint bolt 14 that is inserted into the bolt insertion hole 11 and the joint elongated hole 13,
A square root portion 15 that penetrates into the elongated joint hole 13 but contacts the inner edge thereof and does not idle, and has a substantially rectangular cross section and has a diagonal line longer than the inner diameter of the bolt insertion hole 11.
form. As shown in the figure, a nut 16 with a washer is screwed into the joint bolt 14 itself to fasten the metal duct material 1 and the joint fitting 12.
なお、継ぎ金物１２の表面にも、金属ダクト材
１と同様に表面処理膜２が施されており、それを
破断するため、ナツト１６の裏面には、破断突部
１７が形成されている。この破断突部１７は、第
４図に示すように、ナツトの外縁に沿つて、ねじ
込み方向では、ほぼ垂直な端面を備えた鋸歯状の
小突起を連続させて形成したものである。 Note that the surface of the joint 12 is also coated with a surface treatment film 2 in the same manner as the metal duct material 1, and in order to break it, a breaking protrusion 17 is formed on the back surface of the nut 16. As shown in FIG. 4, the breakage protrusion 17 is formed by continuously forming small serrated protrusions along the outer edge of the nut with end surfaces that are substantially perpendicular in the screwing direction.
この実施例によると、ボルト挿通孔１１及び継
ぎ長孔１３に貫挿させた継ぎボルト１４にナツト
１６がねじ込まれると、ボルト挿通孔１１内径に
比し大きい角根部１５がボルト挿通孔１１内に喰
み込み状となり（第２図参照）、第２図に示
すように、ボルト挿通孔１１内縁及び継ぎ金物１
２表面に施されていた表面処理膜２を破断し、電
気的導通が得られる。すなわち、一方の金属ダク
ト材１、一方の継ぎボルト１４、一方のナツト１
６、継ぎ金物１２、他方のナツト１６、他方の継
ぎボルト１４、他方の金属ダクト材１の電気的ル
ートが形成されている。 According to this embodiment, when the nut 16 is screwed into the joint bolt 14 inserted through the bolt insertion hole 11 and the joint elongated hole 13, the square root portion 15, which is larger than the inner diameter of the bolt insertion hole 11, is inserted into the bolt insertion hole 11. The inner edge of the bolt insertion hole 11 and the fitting 1 are cut into a biting shape (see FIG. 2), and as shown in FIG.
The surface treatment film 2 applied to the two surfaces is broken, and electrical continuity is obtained. That is, one metal duct material 1, one joint bolt 14, one nut 1
6, an electrical route is formed for the joint 12, the other nut 16, the other joint bolt 14, and the other metal duct material 1.
この実施例において、継ぎボルト１４の角根部
１５は図示のように断面がほぼ矩形状のものとせ
ず、三角形あるいは五角形以上の多角形にするも
のであつてもよく、それは任意である。 In this embodiment, the square root part 15 of the connecting bolt 14 does not have a substantially rectangular cross section as shown in the drawings, but may have a triangular or polygonal shape of pentagon or more, which is arbitrary.
実施例 ２
第３図に示すように、金属ダクト材１の端部に
おける継ぎ部位左右にそれぞれ２個のほぼ横長の
長円形状の継ぎ長孔１３を開穿しておき、また、
端面が突き当て状となる端部での左右側板、底板
相互の内側面に当接接着される断面がほぼ溝形を
呈する内カツプリング式の継ぎ金物１２に、ボル
ト挿通孔１１位置に合致する円形状のボルト挿通
孔１１を開穿する。なお、他の構造は、実施例１
と同様である。Embodiment 2 As shown in FIG. 3, two substantially horizontally elongated joint holes 13 are drilled on the left and right sides of the joint site at the end of the metal duct material 1, and
An inner coupling type fitting 12 having a substantially groove-shaped cross section is bonded to the inner surfaces of the left and right side plates and the bottom plate at the ends where the end faces abut, and a circle that matches the position of the bolt insertion hole 11 is attached. A shaped bolt insertion hole 11 is opened. Note that other structures are as in Example 1.
It is similar to
実施例 ３
第５図においては、継ぎボルト１４の角根部１
５の周面に継ぎボルト１４の長さ方向に凹状ある
いは凸状での喰込部１８を形成したもので、ヘツ
ター加工またはローレツト加工、羽根状での打ち
出し加工を施して成り、それは、例えば図示のよ
うに、直線縦溝状とする。他の構造は、実施例１
あるいは２と同様である。なお、角根部１５は、
第５図に示すように、ネジ部先端がわから頭部
までを同径とするも、あるいは第５図に示すよ
うに、ネジ部先端がわから頭部に至るに伴ない次
第に大径となるようにしてもよく、この場合は、
ボルト挿通孔１１内への円滑な挿入を図れる。ま
た、第５図に示すように、ネジ部基部にネジ部
先端がわから頭部に至るに伴ない次第に広幅とな
る４枚の三角羽根状に突成し、ボルト挿通孔１
１、継ぎ長孔１３内縁での表面処理膜２への喰込
力を一層大きくなるようにするもよい。Embodiment 3 In FIG. 5, the square root part 1 of the joint bolt 14
A concave or convex recess 18 is formed on the circumferential surface of the joint bolt 14 in the length direction of the joint bolt 14, and is formed by hettering, knurling, or wing-shaped punching, for example, as shown in the figure. Shape it into a straight vertical groove like this. Other structures are Example 1
Or it is the same as 2. Note that the square root portion 15 is
As shown in Figure 5, the diameter is the same from the tip of the thread to the head, or as shown in Figure 5, the diameter gradually increases from the tip of the thread to the head. In this case,
Smooth insertion into the bolt insertion hole 11 can be achieved. In addition, as shown in Fig. 5, there are four triangular blade-shaped protrusions at the base of the thread that gradually become wider as the tip of the thread reaches the head.
1. The force of biting into the surface treatment film 2 at the inner edge of the joint elongated hole 13 may be increased.
実施例 ４
第６図においては、実施例１あるいは２と同様
であるも、ただ、その継ぎボルト１４の角根部１
５の周面に、断面がほぼ鋸歯状を呈する縦溝１９
を形成したものである。この縦溝１９は、継びボ
ルト１４の長さ方向に沿つた直線状とするも、彎
曲状とするも、いずれであつてもよい。Embodiment 4 In FIG. 6, the square root portion 1 of the joint bolt 14 is the same as in Embodiment 1 or 2.
A vertical groove 19 having a substantially serrated cross section on the circumferential surface of 5.
was formed. This vertical groove 19 may be linear along the length direction of the joint bolt 14 or may be curved.
実施例３及び４によると、ボルト挿通孔１１内
縁の表面処理膜２の破断を細分化し、電気的導通
を一層確実なものとし、また、実施例４の彎曲状
の縦溝１９によると、ナツト１６とのねじ込みに
際し、継ぎボルト１４に若干の回転が与えられる
と、表面処理膜２を一層大きく破断する。 According to Examples 3 and 4, the breaks in the surface treatment film 2 on the inner edge of the bolt insertion hole 11 are divided into smaller pieces to further ensure electrical continuity, and according to the curved vertical groove 19 of Example 4, the nut When the joint bolt 14 is slightly rotated when screwed into the joint bolt 16, the surface treatment film 2 is further broken.
実施例 ５
第７図においては、上述した各実施例と同様で
あるも、ただ、継ぎボルト１４の角根部１５が、
ネジ先端部がわから頭部に至るに伴ない次第に大
径となるテーパ面となつている。これによると、
ナツト１６とのねじ込みに際し、角根部１５がボ
ルト挿通孔１１、継ぎ長孔１３内に迅速円滑に進
入し、それらの内縁の表面処理膜２の破断を容易
にする。Embodiment 5 In FIG. 7, the square root portion 15 of the joint bolt 14 is the same as each of the above-mentioned embodiments, but
The tip of the screw has a tapered surface that gradually becomes larger in diameter as it reaches the head. according to this,
When screwing into the nut 16, the square root portion 15 quickly and smoothly enters the bolt insertion hole 11 and the joint elongated hole 13, making it easy to break the surface treatment film 2 on the inner edges thereof.
実施例 ６
第８図及び第９図において、一方の金属ダクト
材１に貫挿される継ぎボルト１４と、他方の金属
ダイト材１に貫挿される継ぎボルト１４との間
に、導電性部材、例えば、銅板２０（カツパープ
レート）（第８図参照）、ボンド線２１（第９図参
照）を架装してある。この導電性部材によつて、
一方の金属ダクト材１、一方の継ぎボルト１４、
一方のナツト１６、導電性部材（銅板２０、ボン
ド線２１）、他方のナツト１６、他方の継ぎボル
ト１４、他方の金属ダクト材１の電気的ルートが
形成される。こうすると、導電性部材（銅板２
０、ボンド線２１）によつてねじ止め部品相互で
の一層確実な電気的導通が得られる。Embodiment 6 In FIGS. 8 and 9, a conductive member, e.g. , a copper plate 20 (cutper plate) (see FIG. 8), and a bond wire 21 (see FIG. 9). With this conductive member,
One metal duct material 1, one joint bolt 14,
An electrical route is formed between one nut 16, the conductive member (copper plate 20, bond wire 21), the other nut 16, the other joint bolt 14, and the other metal duct material 1. In this way, the conductive member (copper plate 2
0, bond wire 21) provides more reliable electrical continuity between the screwed parts.
実施例 ７
第１０図において、接続される金属ダクト材１
相互それぞれに貫挿される一対の継ぎボルト１４
を、金属ダクト材１相互に跨装される連繋盤２３
に結合され一体化させ、連繋盤２３には、表面処
理膜２を破断する尖鋭状の破断突起２４を突成し
たものである。Example 7 In FIG. 10, the metal duct material 1 to be connected
A pair of joint bolts 14 inserted through each other
, the interconnection board 23 that spans the metal duct material 1
The connecting board 23 is provided with a sharp breaking protrusion 24 that breaks the surface treatment film 2.
これは、実施例６と同様に、接続される金属ダ
クト材１相互に跨架されるようにして連繋盤２３
を配置し、また、金属ダクト材１それぞれに継び
ボルト１４を貫挿させてナツト１６をねじ込めば
よく、ねじ込みに伴ない継ぎボルト１４が引き寄
せられ、破断突起２４が金属ダクト材１表面に喰
い込み、金属ダクト材１表面の表面処理膜２を破
断する。 Similar to the sixth embodiment, the interconnection board 23 is constructed so as to straddle the metal duct materials 1 to be connected.
In addition, the joint bolts 14 are inserted into each of the metal duct materials 1, and the nuts 16 are screwed in. As the joint bolts 14 are screwed in, the joint bolts 14 are drawn, and the breakage projections 24 are placed on the surface of the metal duct materials 1. It digs in and breaks the surface treatment film 2 on the surface of the metal duct material 1.
実施例 ８
第１１図においては、継ぎ金物１２を断面ほぼ
Ｌ字形を呈する左右一対にして成るものとしたの
であり、左右のそれぞれは、金属ダクト材１の左
右側板、左右側板と底板側縁との連続部に当接装
着されるものとしてある。そして、第１１図に
示すように、金属ダクト材１の外側面に装着され
る場合、第１１図に示すように、金属ダクト材
１の内側面に装着される場合のいずれであつても
よい。Embodiment 8 In FIG. 11, the fittings 12 are made up of a pair of left and right parts having a substantially L-shaped cross section, and each of the left and right parts is formed by connecting the left and right side plates of the metal duct material 1, the left and right side plates, and the side edges of the bottom plate. It is intended to be mounted in contact with the continuous part of the Then, as shown in FIG. 11, it may be attached to the outer surface of the metal duct material 1, or it may be attached to the inner surface of the metal duct material 1, as shown in FIG. .
実施例 ９
第１２図乃至第１５図においては、金属ダクト
材１の端部相互を重ね合せ状とし、重ね合せた親
桁部材２相互に貫挿させた導電性の継ぎボルト１
４にて一方の金属ダクト材１の表面処理膜２を破
断し、継ぎボルト１４にねじ込まれるナツト１６
にて他方の金属ダクト材１の表面処理膜２を破断
するものである。Embodiment 9 In FIGS. 12 to 15, the ends of the metal duct material 1 are overlapped with each other, and the conductive joint bolts 1 are inserted through the overlapped main girder members 2.
4, the surface treatment film 2 of one metal duct material 1 is broken, and the nut 16 is screwed into the joint bolt 14.
The surface treatment film 2 of the other metal duct material 1 is broken at this point.
具体的には、相互に接続される金属ダクト材１
における左右側板、底板のうち、一方の末端部分
に、その末端部分を内側あるいは外側に肉厚分の
段差を有するように折曲した段差接続部２５を形
成し、この段差接続部２５に、直線状のままの他
方の末端部分を重ね合せ、ねじ止めする。ねじ止
めに際し、口径に相違がある段差接続部２５及び
末端部分に位置を合致させて開穿させてあるボル
ト挿通孔１１に継ぎボルト１４を貫挿させ、ボル
ト挿通孔１１内縁の表面処理膜２を破断させる一
方、この継ぎボルト１４にナツト１６をねじ込
む。継ぎボルト１４へのねじ込みに伴ない左右側
板、底板表面に圧接するナツト１６の裏面には、
表面処理膜２を破断する破断突部１７を形成して
ある。 Specifically, metal duct materials 1 to be connected to each other
A step connection part 25 is formed by bending the end part inwardly or outwardly to have a step corresponding to the wall thickness at one end of the left and right side plates and the bottom plate, and a straight line is formed in this step connection part 25. Overlap the other end portion, still in shape, and secure with screws. When screwing, the joint bolt 14 is inserted into the bolt insertion hole 11 that is opened so as to match the stepped connection portion 25 and the end portion, which have different diameters, and the surface treatment film 2 on the inner edge of the bolt insertion hole 11 is inserted. While breaking the joint bolt 14, the nut 16 is screwed into the joint bolt 14. On the back side of the nut 16 that comes into pressure contact with the surfaces of the left and right side plates and the bottom plate as it is screwed into the joint bolt 14,
A breaking protrusion 17 for breaking the surface treatment film 2 is formed.
これによると、実施例１乃至実施例８にあるよ
うな、金属ダクト材１相互間に渡架される継ぎ金
物１２を省略でき、継ぎ構造を簡素化し、作業時
間を短縮する。 According to this, it is possible to omit the joint fittings 12 that span between the metal duct materials 1 as in Examples 1 to 8, simplifying the joint structure and shortening the working time.
そしてまた、一方の金属ダクト材１、継ぎボル
ト１４、ナツト１６、他方の金属ダクト材１の電
気的ルートが形成されることは、導通部品の介在
が少なくなり、電気的導通の確実化を一層向上さ
せる。 Furthermore, since an electrical route is formed between the metal duct material 1 on one side, the joint bolt 14 and the nut 16, and the metal duct material 1 on the other side, there are fewer intervening conductive parts, which further ensures electrical continuity. Improve.
実施例 10
第１３図においては、継ぎボルト１４の頭部裏
面が金属ダクト材１あるいは継ぎ金物１２に当接
するとき、それの表面処理膜２を頭部裏面での当
接部分で破断するようにしたのである。すなわ
ち、頭部裏面での当接部分に、第１３図に示す
ように、頭部周縁に沿つて突成されたリング状の
破断突縁２６としたり、第１３図に示すよう
に、頭部裏面に形成された凹凸面状の破断突部２
７としたりする。Embodiment 10 In FIG. 13, when the back side of the head of the joint bolt 14 comes into contact with the metal duct material 1 or the joint fitting 12, the surface treatment film 2 is broken at the contact portion on the back side of the head. That's what I did. That is, as shown in FIG. 13, a ring-shaped broken ridge 26 is formed along the periphery of the head at the abutting portion on the back surface of the head, or as shown in FIG. Uneven surface-like fracture protrusion 2 formed on the back surface
Let's say 7.
（発明の効果）
本発明は以上のように、金属ダクト材相互の接
続と同時に、その間の電気的導通を確実に行うこ
とができる。(Effects of the Invention) As described above, the present invention can simultaneously connect metal duct materials to each other and ensure electrical continuity therebetween.
すなわち、従来の連結装置のように、針突起が
塗料等の皮膜を突き破る方法に代わつて、ボルト
挿通孔１１に強制嵌入してこのボルト挿通孔１１
を拡開し、貫挿部分の表面処理膜２を破断する角
根部１５を設けた導電性の継ぎボルト１４を使用
したことで、継ぎボルト１４をボルト挿通孔１１
に強固に固定して継ぎボルト１４の空回りを防止
し、ナツト１６の締め付け力を極めて高いものに
できる。したがつて、従来のナツトの当接面に形
成した針突起を介しての電気的導通のごとく、点
接触による不十分な導通効果を確実な導通効果に
改善した。 That is, instead of the method in which the needle protrusion breaks through a coating such as paint as in the conventional coupling device, the needle protrusion is forcibly fitted into the bolt insertion hole 11.
By using a conductive splicing bolt 14 with a square root portion 15 that expands and ruptures the surface treatment film 2 at the insertion portion, the splicing bolt 14 can be inserted into the bolt insertion hole 11.
The joint bolt 14 can be firmly fixed to the joint bolt 14 to prevent it from spinning idle, and the tightening force of the nut 16 can be made extremely high. Therefore, the insufficient conduction effect due to point contact, such as electrical conduction through the needle protrusion formed on the contact surface of the conventional nut, has been improved to a reliable conduction effect.
更に、継ぎボルト１４へのねじ込みに伴なつて
圧接する表面処理膜２を自身の周囲に押しやるス
クリユー形状の破断突部１７を形成してある導電
性のナツト１６とによる締結手段を使用したこと
で、表面処理膜２をナツト１６の周囲に押しやる
ことができ、金属ダクト材の金属生地と破断突部
１７とが広い面積で確実に接触する。また、ナツ
ト１６の周囲に押しやつた表面処理膜２が、この
ナツト１６と剥離された金属生地との周囲を保護
するものになる。この結果、電気的導通を図つた
後の被服処理を同時に行うことができ、金属素材
の露出部分から生じる錆が原因で導電性を失う虞
を解消した。 Furthermore, by using a fastening means using a conductive nut 16 having a screw-shaped breakage protrusion 17 that pushes the surface treatment film 2 that presses into contact with the joint bolt 14 to its surroundings. , the surface treatment film 2 can be pushed around the nut 16, and the metal fabric of the metal duct material and the fracture protrusion 17 are in reliable contact over a wide area. Further, the surface treatment film 2 pressed around the nut 16 protects the area around the nut 16 and the peeled metal fabric. As a result, the clothing treatment after establishing electrical continuity can be performed at the same time, eliminating the risk of loss of electrical conductivity due to rust generated from exposed parts of the metal material.
更に、継ぎボルト１４の角根部１５がボルト挿
通孔１１を拡開して強力に締め付けられる間に、
ナツト１６の破断突部１７を金属ダクト材の表面
に充分に圧接することができ。したがつて、厚膜
タイプや硬度の高い塗膜でも確実に剥離すること
ができるものである。 Furthermore, while the square root portion 15 of the joint bolt 14 expands the bolt insertion hole 11 and is strongly tightened,
The broken protrusion 17 of the nut 16 can be sufficiently pressed against the surface of the metal duct material. Therefore, even thick or hard coatings can be reliably removed.
このように本発明によると、金属ダクト材相互
の簡単な接続と同時に、確実な電気的導通を実現
でき、しかも、耐蝕性に優れて電気的導通を長期
間保つことができる。したがつて、別個に電気的
接続作業を行なう必要はなく、現場作業を簡素化
し、作業の効率化に大きく寄与する。 As described above, according to the present invention, it is possible to easily connect metal duct materials to each other and at the same time realize reliable electrical continuity, and also to maintain electrical continuity for a long period of time due to excellent corrosion resistance. Therefore, there is no need to separately perform electrical connection work, which simplifies on-site work and greatly contributes to increased work efficiency.
図面は本発明の実施例を示すもので、第１図は
本発明の実施例１における使用状態での分解斜視
図、第２図はボルト挿通孔部位での表面処理膜の
破断を表わし、そのは要部正面図、そのは破
断前の要部断面図、第３図は実施例２における使
用状態での分解斜視図、第４図はナツトの側面
図、第５図乃至それぞれは実施例３における
継ぎボルトの斜視図、第６図は実施例４における
継ぎボルトの斜視図、第７図は実施例５における
使用状態での断面図、第８図及び第９図それぞれ
は実施例６における使用状態での分解斜視図、第
１０図は同じく実施例７での斜視図、第１１図
，それぞれは実施例８における断面図、第１
２図は実施例９における分解斜視図、第１３図
，それぞれは実施例10における継ぎボルトの
斜視図である。
１……金属ダクト材、２……表面処理膜、１０
……締結手段、１１……ボルト挿通孔、１２……
継ぎ金物、１３……継ぎ長孔、１４……継ぎボル
ト、１５……角根部、１６……ナツト、１７……
破断突部、１８……喰込部、１９……縦溝、２０
……銅板、２１……ボンド線、２２……破断突
縁、２３……連繋盤、２４……破断突起、２５…
…段差接続部、２６……破断突縁、２７……破断
突部。
The drawings show embodiments of the present invention. Fig. 1 is an exploded perspective view of Embodiment 1 of the present invention in use, and Fig. 2 shows the fracture of the surface treatment film at the bolt insertion hole. is a front view of the main part, that is a cross-sectional view of the main part before breaking, FIG. 3 is an exploded perspective view of the second embodiment in a state of use, FIG. FIG. 6 is a perspective view of the joint bolt in Example 4, FIG. 7 is a sectional view of the joint bolt in Example 5 in use, and FIGS. 8 and 9 each show the use in Example 6. FIG. 10 is also a perspective view of Example 7, and FIG. 11 is a cross-sectional view of Example 8, and FIG.
FIG. 2 is an exploded perspective view of the ninth embodiment, and FIG. 13 is a perspective view of a joint bolt in the tenth embodiment. 1...Metal duct material, 2...Surface treatment film, 10
...Fascinating means, 11... Bolt insertion hole, 12...
Joint hardware, 13... Joint long hole, 14... Joint bolt, 15... Square root, 16... Nut, 17...
Fracture protrusion, 18... Biting part, 19... Vertical groove, 20
... Copper plate, 21 ... Bond wire, 22 ... Broken ridge, 23 ... Interlocking board, 24 ... Broken protrusion, 25 ...
...Step connection, 26... Broken ridge, 27... Broken protrusion.
Claims (1)
材相互を接続するに際し、ボルト挿通孔に強制嵌
入してこのボルト挿通孔を拡開し、貫挿部分の表
面処理膜を破断する角根部を設けた導電性の継ぎ
ボルトと、この継ぎボルトへのねじ込みに伴なつ
て圧接する表面処理膜を自身の周囲に押しやるス
クリユー形状の破断突部を形成してある導電性の
ナツトとによる締結手段を介して行ない、金属ダ
クト材相互を導電状態とすることを特徴とした金
属ダクト材の継ぎ方法。 ２ 金属ダクト材の端部相互を突き合せ状とし、
金属ダクト材相互の端部に導電性の継ぎ金物を渡
装し、金属ダクト材、継ぎ金物に貫挿させた導電
性の継ぎボルトと導電性のナツトとを介して金属
ダクト相互を導電状態とする特許請求の範囲第１
項記載の金属ダクト材の継ぎ方法。 ３ 金属ダクト材の端部相互を重ね合せ状とし、
重ね合せた金属ダクト材相互に貫挿させた導電性
の継ぎボルトと導電性の継ぎナツトとを介して、
金属ダクト相互を導電状態とする特許請求の範囲
第１項記載の金属ダクト材の継ぎ方法。[Claims] 1. When interconnecting metal duct materials coated with a non-conductive surface treatment film, the bolt insertion hole is forcibly fitted into the hole, the bolt insertion hole is enlarged, and the surface treatment of the penetration portion is performed. A conductive connecting bolt with a square root that breaks the membrane, and a screw-shaped breaking protrusion that pushes the surface-treated membrane that presses into contact with the connecting bolt as it is screwed into the connecting bolt. A method for joining metal duct materials, characterized in that the metal duct materials are made electrically conductive by means of a fastening means using a nut. 2 The ends of the metal duct material are butted against each other,
Conductive joints are passed between the ends of the metal duct materials, and the metal ducts are brought into a conductive state through conductive joint bolts and conductive nuts inserted through the metal duct materials and the joints. Claim 1
Method for joining metal duct materials as described in section. 3 The ends of the metal duct material are overlapped with each other,
Through conductive joint bolts and conductive joint nuts that penetrate through the overlapped metal duct materials,
The method of joining metal duct materials according to claim 1, wherein the metal ducts are electrically conductive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62004407A JPS63174508A (en) | 1987-01-12 | 1987-01-12 | Jointing apparatus for metallic duct material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62004407A JPS63174508A (en) | 1987-01-12 | 1987-01-12 | Jointing apparatus for metallic duct material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63174508A JPS63174508A (en) | 1988-07-19 |
| JPH0531365B2 true JPH0531365B2 (en) | 1993-05-12 |
Family
ID=11583466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62004407A Granted JPS63174508A (en) | 1987-01-12 | 1987-01-12 | Jointing apparatus for metallic duct material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63174508A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0265025U (en) * | 1988-10-28 | 1990-05-16 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS515757U (en) * | 1974-06-29 | 1976-01-16 | ||
| JPS54150695A (en) * | 1978-05-18 | 1979-11-27 | Puresuto Kougiyou Kenkiyuushiy | Cable rack and method of connecting same |
-
1987
- 1987-01-12 JP JP62004407A patent/JPS63174508A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS515757U (en) * | 1974-06-29 | 1976-01-16 | ||
| JPS54150695A (en) * | 1978-05-18 | 1979-11-27 | Puresuto Kougiyou Kenkiyuushiy | Cable rack and method of connecting same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63174508A (en) | 1988-07-19 |
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