【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、電気機器の端子台の端
子カバーの構造に関するものである。
【０００２】
【従来の技術】従来の端子台の端子カバーは（１）電気
回路の充電部分に人が触れ感電するのを防止する。
（２）導電牲の物が充電部分に触れ、線間短絡及び接地
事故を防止するために充電部一分の端子を透明の絶縁物
で全面に覆っている構造である。
【０００３】
【発明が解決しようとする課題】活線の電気回路のチエ
ック及び測定等を行うとき、従来の物は、端子台の端子
カバーを取り外して充電部分の端子を露出させ、実施し
なければならず、その作業者は誤って他の端子の充電部
分へ接触して感電災害を、又測定用具等の導電性の物が
端子の充電部分へ接触して線間短絡及び接地事故を生じ
させる恐れがあった。
【０００４】
【課題を解決するための手段】端子カバーを取り外さな
ければ充電部分の端子を露出させないことができる。そ
の為に端子台の端子カバーに穴をあけ、その穴を通して
測定棒が端子と接触できる構造にする事により発明が解
決しようとする課題が解決できる。
【０００５】
【作用】本発明は、以上の様な構成であるから、電気回
路のチエック者・測定者は端子カバーを外さずに端子カ
バーの穴に測定棒を差し込み作業が出来るので感電災
害、線間短絡及び接地事故の可能性がなくなる。
【０００６】
【実施例】図３は、端子カバーの上面に測定棒等が差し
込める穴をあけた端子カバー。図４は、端子カバーの上
面に測定棒等が差し込める穴を、ある一定の範囲に拡大
して、部分的に一括して穴をあけた端子カバー。図５
は、端子カバーの上面に測定棒等が差し込める穴をあけ
た端子カバに、測定棒等が差し込める穴を更に蓋をする
ためにうわ板を設けた端子カバー。図６は端子カバーの
上面に測定棒等が差し込める穴をあけた端子カバーに測
定棒等が差し込める穴を塞ぐために栓を設けた端子カバ
ー
【０００７】
【発明の効果】本発明は、以上の様な構成であるから、
（１）電気回路のチエック者・測定者は、端子カバーを
外さずに端子カバーの穴に測定棒を差し込み作業が出来
るので、端子部の充電部分に触れる事がなくなる為感電
するおそれがなくなり又、線間短絡及び接地事故の可能
性もなくなる。
（２）測定棒を端子カバーの穴に差し込み、測定棒の先
端を端子締めつけビスの頭部の＋又は−の溝に当てるこ
とにより、穴が測定棒の支点となり、測定棒を手で持た
なくても測定できる為、あいた手で測定レンジの切替え
等が可能となり作業能率があがる効果がある。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a terminal cover of a terminal block of electric equipment. 2. Description of the Related Art A conventional terminal cover for a terminal block (1) prevents a person from touching and charging the charged portion of an electric circuit.
(2) A structure in which a conductive object touches the charged part and a terminal for one part of the charged part is entirely covered with a transparent insulator in order to prevent a short circuit between lines and a grounding accident. [0003] When checking or measuring an electric circuit of a live line, the prior art must be carried out by removing the terminal cover of the terminal block to expose the terminals of the charging part. The worker must accidentally touch the charged part of another terminal to get an electric shock hazard, or a conductive object such as a measuring tool may contact the charged part of the terminal to cause a short circuit between lines and an accident of grounding. There was a fear that [0004] The terminals of the charging portion cannot be exposed unless the terminal cover is removed. Therefore, a problem to be solved by the invention can be solved by forming a hole in the terminal cover of the terminal block and providing a structure in which the measuring rod can contact the terminal through the hole. Since the present invention has the above-mentioned structure, a person who checks / measures the electric circuit can insert a measuring rod into the hole of the terminal cover without removing the terminal cover, which may cause an electric shock. Eliminates the possibility of short circuit between lines and grounding accident FIG. 3 shows a terminal cover in which a hole for inserting a measuring rod or the like is formed on the upper surface of the terminal cover. FIG. 4 shows a terminal cover in which a hole into which a measuring rod or the like can be inserted is enlarged in a certain range on the upper surface of the terminal cover and a hole is partially and collectively formed. FIG.
Is a terminal cover in which a terminal cover is provided on the upper surface of the terminal cover with holes for inserting measuring rods and the like, and a baffle plate is provided to further cover the holes for inserting measuring rods and the like. FIG. 6 shows a terminal cover in which a hole for inserting a measuring rod or the like is formed on the upper surface of a terminal cover, and a terminal cover provided with a plug for closing the hole in which the measuring rod or the like can be inserted. Because it has a configuration like
(1) Electric circuit checkers / measurers can insert the measuring rod into the hole of the terminal cover without removing the terminal cover, so there is no need to touch the charged part of the terminal part, so there is no risk of electric shock. Also, the possibility of short circuit between lines and ground accident is eliminated. (2) Insert the measuring rod into the hole of the terminal cover and tighten the tip of the measuring rod against the + or-groove of the head of the screw to make the hole the fulcrum of the measuring rod, and do not hold the measuring rod by hand. However, since it is possible to measure, it is possible to change the measurement range with free hands, which has the effect of increasing work efficiency.
【図面の簡単な説明】
【図１】一般的な端子台及び端子カバーの外観図
【図２】図１のＡ−Ａ断面図
【図３】端子カバーに穴をあけた実施例を示す図
【図４】端子カバーの穴を横長にあけた実施例を示す図
【図５】端子カバーの穴の部分を塞ぐ為にうわ板を付け
た端子カバーの実施例を示す断面図
【図６】端子カバーの穴の部分を塞ぐ為に栓を付けた実
施例を示す断面図
【図７】端子カバーの穴に測定棒を差し込み端子にあて
測定している状態を示す端子台の断面図
【符号の説明】
１ 端子台
２ 端子カバー
３ 端子締めつけビス
４ 端子
５ 穴
６ 横長穴
７ 端子カバーの穴を塞ぐ為のうわ板
８ 端子カバーの穴を塞ぐ為の栓
９ 端子の絶縁チユーブ
１０ 測定棒
１１ 電線BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external view of a general terminal block and terminal cover. FIG. 2 is a sectional view taken along line AA of FIG. 1. FIG. 3 is a diagram showing an embodiment in which a hole is formed in the terminal cover. FIG. 4 is a view showing an embodiment in which a hole of a terminal cover is horizontally elongated. FIG. 5 is a cross-sectional view showing an embodiment of a terminal cover provided with a baffle plate to close the hole portion of the terminal cover. Sectional view showing an embodiment in which a plug is attached to close the hole portion of the terminal cover. [FIG. 7] Sectional view of the terminal block showing a state in which a measuring rod is inserted into the hole of the terminal cover and the terminal is being measured. [1] Terminal block 2 Terminal cover 3 Terminal tightening screw 4 Terminal 5 Hole 6 Horizontally long hole 7 Wrinkle plate for closing the hole in the terminal cover 8 Plug for closing the hole in the terminal cover 9 Terminal insulation tube 10 Measuring rod 11 Electrical wire