JPH0428175Y2 - - Google Patents
Info
- Publication number
- JPH0428175Y2 JPH0428175Y2 JP1985102700U JP10270085U JPH0428175Y2 JP H0428175 Y2 JPH0428175 Y2 JP H0428175Y2 JP 1985102700 U JP1985102700 U JP 1985102700U JP 10270085 U JP10270085 U JP 10270085U JP H0428175 Y2 JPH0428175 Y2 JP H0428175Y2
- Authority
- JP
- Japan
- Prior art keywords
- ceramic
- tool
- coating layer
- electrically insulating
- insulating coating
- 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
Links
- 239000000919 ceramic Substances 0.000 claims description 20
- 239000011247 coating layer Substances 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 9
- 238000005524 ceramic coating Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 6
- 238000000576 coating method Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は電線用工具に関するものである。[Detailed explanation of the idea] (Industrial application field) The present invention relates to a tool for electric wires.
（従来の技術）
従来、例えば電気通信用主配線架（MDF）端
子に加入者線を接続する作業工具としてニツパ
ー、丸ペンチ等の工具を用いている。これら工具
はなんら絶縁処理が施されていない。(Prior Art) Conventionally, tools such as nippers and round pliers have been used as work tools for connecting subscriber lines to terminals of telecommunications main distribution frames (MDF). These tools are not insulated in any way.
ところが、上記のようなMDF端子へ新加入者
線を接続する作業では、他の端子の既接続加入者
回路の稼動時に接続せざるを得ない。このような
MDF端子は多数個が林立していて、その端子間
の間隔は数ミリ程度しかないため、端子接続作業
中しばしば工具によつて他の端子との間を接触短
絡させて通信障害を起し、加入者に多大の被害を
与えることがある。このような事故を防止する手
段として、事前に周囲の端子を電気絶縁テープ等
で保護するようにすることが行なわれているが、
このような手段では極端に作業効率が悪くなり、
多大の費用がかかるという問題があつた。 However, in the work of connecting a new subscriber line to an MDF terminal as described above, the connection must be made while the already connected subscriber circuit of the other terminal is in operation. like this
There are many MDF terminals standing in a row, and the distance between the terminals is only a few millimeters, so during terminal connection work, tools are often used to short-circuit the terminals with other terminals, causing communication failure. This can cause significant damage to subscribers. As a means to prevent such accidents, the surrounding terminals are protected in advance with electrical insulating tape, etc.
This method results in extremely poor work efficiency,
The problem was that it cost a lot of money.
そこで、工具自体に絶縁性をもたせて上記の問
題を解決する手段として、工具先端部をすべてセ
ラミツクで作製するようにしたものや、高硬度の
粉末粒子を混入したプラスチツクで工具外周を被
覆したものが提案されている。 Therefore, as a means to solve the above problem by providing insulation properties to the tool itself, the tip of the tool is made entirely of ceramic, and the outer periphery of the tool is coated with plastic mixed with highly hard powder particles. is proposed.
（考案が解決しようとする問題点）
上記前者の先端部をすべてセラミツクで作製し
たものは、素材並びに加工費が高いため、工具と
してかなり高価なものとなり、また後者の高硬度
粉末粒子を混入したプラスチツクを被覆したもの
は一応耐摩耗性があるが、充分とはいえず、長期
間の使用時に素地の鉄部が露出してくる場合があ
る。(Problems to be solved by the invention) The former type mentioned above, in which the tip part is entirely made of ceramic, is quite expensive as a tool due to the high material and processing costs, and the latter type, in which high-hardness powder particles are mixed in, is quite expensive. Those covered with plastic have some wear resistance, but this is not sufficient and the iron parts of the base may become exposed after long-term use.
本考案は上記の点にかんがみ、安価に製作し得
ると共に電気絶縁被覆層の耐摩耗性を著しく向上
せしめた電線用工具を提供するものである。 In view of the above points, the present invention provides a tool for electric wires that can be manufactured at low cost and has significantly improved wear resistance of the electrical insulating coating layer.
（問題点を解決するための手段）
そこで本考案は、ニツパーまたは丸ペンチの電
線用工具において、金属製の工具本体の少なくと
も先端部の、前記ニツパーの刃先部または前記丸
ペンチの把持面を除く外周にセラミツクの電気絶
縁被覆層を設け、前記ニツパーの刃先部または前
記丸ペンチの把持面にはセラミツクの電気絶縁被
覆層を設けないようにしたものである。(Means for Solving the Problems) Therefore, the present invention provides a tool for electric wires such as nippers or round pliers, excluding at least the tip of the metal tool body, the cutting edge of the nipper or the gripping surface of the round pliers. A ceramic electrically insulating coating layer is provided on the outer periphery, but no ceramic electrically insulating coating layer is provided on the cutting edge of the nipper or the gripping surface of the round pliers.
（実施例）
第１図および第２図は本考案の一実施例を示
し、この場合は電線の切断および被覆除去用のニ
ツパーであり、１は金属製の工具本体、２は工具
本体１の使用時に他の導電体に接触の恐れのある
先端部の外周に電気絶縁被覆した二酸化チタン、
アルミナ、酸化クロム、ジルコニア等の単体ある
いは混合体よりなるセラミツク層である。このセ
ラミツクの被覆層２は例えばプラズマ溶射法すな
わちN2，N2＋H2，Ar，Ar＋H2，Ar＋Heなどの
プラズマガスを熱源として前記のようなセラミツ
クの粉末材料を入れて溶射する方法によつて設け
る。セラミツク被覆層２の厚さは20μm以上にす
ることで十分な絶縁性を有するものとできる。ま
た切味を損ねないように刃先部はセラミツク被覆
はされない。この電気絶縁被覆層２は工具本体１
の全外周に設けてもよく、その場合、かしめピン
で関着されている両構成部の軸ピンの摺接面およ
び交差部の摺接面には摩擦を小さくし円滑に使用
できるようセラミツク層被覆はされない。(Embodiment) Figures 1 and 2 show an embodiment of the present invention, in which nippers are used for cutting electric wires and removing coatings, 1 is a metal tool body, and 2 is a tool body 1. Titanium dioxide with an electrically insulating coating around the tip that may come into contact with other conductors during use.
A ceramic layer made of alumina, chromium oxide, zirconia, etc. alone or in combination. This ceramic coating layer 2 is formed by, for example, using a plasma spraying method, that is, using a plasma gas such as N 2 , N 2 +H 2 , A r , A r +H 2 , A r +H e as a heat source, and inserting the ceramic powder material as described above. Provided by thermal spraying method. By setting the thickness of the ceramic coating layer 2 to 20 μm or more, it can have sufficient insulation properties. Also, the cutting edge is not coated with ceramic so as not to impair cutting quality. This electrically insulating coating layer 2 is applied to the tool body 1
In that case, the sliding surfaces of the shaft pins and the sliding surfaces of the intersections of both components connected by caulking pins are covered with a ceramic layer to reduce friction and ensure smooth use. Not covered.
第３図および第４図は他の実施例を示し、この
例は丸ペンチの場合であり、３は金属製の工具本
体、４は本体３の使用時に他の導電体と接触する
恐れのある先端部分の外周を被覆した前実施例の
場合と同様の材料のセラミツク層であり、前述と
同様、その厚さを20μm以上にすることで十分な
絶縁性を有するものとできる。把持面は、その凹
凸が埋まり把持摩擦力が弱まるのを防ぐためセラ
ミツク層による被覆はされない。またこの例の場
合も、図示例のように先端部だけでなく全外周に
セラミツク層を被覆してもよい。その場合、かし
め軸ピンで関着されている両構成部材の軸ピンの
摺接面および交差部の摺接面は摩擦を小さくし、
十分円滑に使用できるようセラミツク層は被覆さ
れない。 3 and 4 show other embodiments, this example is a case of round pliers, 3 is a metal tool body, and 4 is a metal tool body that may come into contact with other conductive objects when the body 3 is used. A ceramic layer made of the same material as in the previous embodiment covers the outer periphery of the tip, and as described above, by making the thickness 20 μm or more, it can have sufficient insulation. The gripping surface is not covered with a ceramic layer in order to prevent the unevenness from being buried and the gripping friction from weakening. Also in this example, the entire outer periphery may be coated with a ceramic layer, not just the tip as in the illustrated example. In that case, the sliding contact surfaces of the shaft pins and the sliding contact surfaces of the intersection of the two component members connected by the caulking shaft pin reduce friction,
The ceramic layer is not coated so that it is sufficiently smooth to use.
第５図はニツパーの場合のセラミツク被覆層に
ついて被覆厚さに対する絶縁抵抗を測定した結果
を示したものであり、20μm以上の厚さでは十分
な絶縁性を有する。 FIG. 5 shows the results of measuring the insulation resistance of the ceramic coating layer in the case of nippers as a function of coating thickness, and shows that a thickness of 20 μm or more has sufficient insulation.
上記の実施例はニツパーと丸ペンチの場合を示
したが、ヤツトコ、スパナ、ねじ回し、トルクレ
ンチ、モンキーレンチ、箱スパナ、ハンダごて、
ラツピング工具の金属部分に前実施例と同様にセ
ラミツク層を被覆したものも本考案に含まれる。 The above example shows the case of nippers and round pliers, but tools, spanners, screwdrivers, torque wrenches, adjustable wrenches, box spanners, soldering irons, etc.
The present invention also includes a wrapping tool in which the metal portion is coated with a ceramic layer as in the previous embodiment.
（作用）
このようにした本考案工具を用いて前述のよう
な電気通信用MDF端子に新規加入者線を接続す
る作業を行う際、工具外周が周囲の端子に触れて
も端子間の接触短絡による通信障害を起すことな
く、その他周辺部に他の導電部がある場合に使用
すれば同様の作用がある。(Function) When the tool of the present invention is used to connect a new subscriber line to the MDF terminal for telecommunications as described above, even if the outer periphery of the tool touches the surrounding terminals, there will be no contact short circuit between the terminals. A similar effect can be obtained if used when there are other conductive parts in the surrounding area without causing communication failure.
耐摩耗試験結果によれば、本考案工具のセラミ
ツク被覆層は前述のような高硬度粉末粒子を混入
したプラスチツク被覆層より少くとも10倍以上の
耐摩耗性があつた。 According to the wear resistance test results, the ceramic coating layer of the tool of the present invention had at least 10 times more wear resistance than the plastic coating layer mixed with high-hardness powder particles as described above.
（考案の効果）
以上のように本考案電線工具は、外周にセラミ
ツクの電気絶縁被覆層を設けたことにより、使用
時に周辺の導電部分に接触しても障害を与えるこ
となく、その被覆はセラミツク層であるため極め
て大きな耐摩耗性を有し、極めて長期間の使用に
もその電気絶縁機能を保持することができ、しか
も工具本体の外周にセラミツクの被覆層を設ける
だけであるので安価に製作し得る。(Effects of the invention) As described above, the electric wire tool of the present invention has a ceramic electrically insulating coating layer on the outer periphery, so that even if it comes into contact with surrounding conductive parts during use, it does not cause any damage, and the coating is made of ceramic. Because it is a layer, it has extremely high wear resistance and can maintain its electrical insulation function even after extremely long periods of use.Moreover, it can be manufactured at low cost because it only requires a ceramic coating layer around the outer periphery of the tool body. It is possible.
さらに、ニツパーについては、先端部にセラミ
ツクの電気絶縁被覆層を設けないので、切れ味を
損なうことがなく、また丸ペンチについても、把
持面にセラミツクの電気絶縁被覆層を設けないの
で、把持摩擦力が弱まることがない。 Furthermore, since the nippers do not have a ceramic electrically insulating coating layer on their tips, their sharpness is not impaired, and the round pliers do not have a ceramic electrically insulating coating layer on the gripping surface, so the gripping friction is never weakens.
第１図は本考案の一実施例の平面図、第２図は
第１図のＡ−Ａ線断面図、第３図は他の実施例の
平面図、第４図は第３図のＢ−Ｂ線断面図、第５
図はセラミツク被覆層の厚さに対する絶縁抵抗の
測定結果を示す図である。
１，３……工具本体、２，４……セラミツクの
電気絶縁被覆層。
Fig. 1 is a plan view of one embodiment of the present invention, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, Fig. 3 is a plan view of another embodiment, and Fig. 4 is a B of Fig. 3. -B sectional view, 5th
The figure shows the measurement results of insulation resistance with respect to the thickness of the ceramic coating layer. 1, 3... Tool body, 2, 4... Ceramic electrical insulation coating layer.
Claims (1)
て、金属製の工具本体の少なくとも先端部の、前
記ニツパーの刃先部または前記丸ペンチの把持面
を除く外周にセラミツクの電気絶縁被覆層を設
け、前記ニツパーの刃先部または前記丸ペンチの
把持面にはセラミツクの電気絶縁被覆層を設けな
いことを特徴とする電線用工具。 In a tool for electric wires such as nippers or round pliers, an electrically insulating coating layer of ceramic is provided on the outer periphery of at least the tip of the metal tool body, excluding the cutting edge of the nipper or the gripping surface of the round pliers, and the cutting edge of the nipper A tool for electric wires, characterized in that a ceramic electrically insulating coating layer is not provided on the gripping surface of the round pliers or the gripping surface of the round pliers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985102700U JPH0428175Y2 (en) | 1985-07-05 | 1985-07-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985102700U JPH0428175Y2 (en) | 1985-07-05 | 1985-07-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6211568U JPS6211568U (en) | 1987-01-24 |
| JPH0428175Y2 true JPH0428175Y2 (en) | 1992-07-08 |
Family
ID=30974579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985102700U Expired JPH0428175Y2 (en) | 1985-07-05 | 1985-07-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0428175Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5008351B2 (en) * | 2006-07-07 | 2012-08-22 | 中国電力株式会社 | Nipper |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5993267A (en) * | 1982-11-17 | 1984-05-29 | 株式会社 バンザイ | Tool for work |
| JPS6011754B2 (en) * | 1975-05-12 | 1985-03-27 | 関西ペイント株式会社 | thermosetting coating composition |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6011754U (en) * | 1983-07-05 | 1985-01-26 | 京セラ株式会社 | pliers |
-
1985
- 1985-07-05 JP JP1985102700U patent/JPH0428175Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6011754B2 (en) * | 1975-05-12 | 1985-03-27 | 関西ペイント株式会社 | thermosetting coating composition |
| JPS5993267A (en) * | 1982-11-17 | 1984-05-29 | 株式会社 バンザイ | Tool for work |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6211568U (en) | 1987-01-24 |
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