JPH0227614U

JPH0227614U -

Info

Publication number: JPH0227614U
Application number: JP10401488U
Authority: JP
Priority date: 1988-08-08
Filing date: 1988-08-08
Publication date: 1990-02-22

Description

[Brief explanation of drawings]

第１図は、本考案にかかわる一実施例の電気的
な構成を示す電気回路図、第２図は、本考案の使
用状態を説明するブロツク図、第３図は、本考案
にかかわる一実施例の外観を示す斜視図である。１……防水配線装置、２……ハウジング、３…
…防水配線回路、４……電動工作機械、５……基
台、６……マイクロスイツチ、１０……低電圧用
の電線、２０……接続端子、２２……マイクロス
イツチ作動灯、２４……内部回路作動灯、３０，
３１……ＡＣ２２０Ｖ電源、３２，３３……切替
え端子、３４……ＣＯＭ端子、３５……ＮＣ端子
、３６……ＮＯ端子。 Fig. 1 is an electric circuit diagram showing the electrical configuration of an embodiment of the invention, Fig. 2 is a block diagram illustrating the usage of the invention, and Fig. 3 is an embodiment of the invention. It is a perspective view showing the appearance of an example. 1...Waterproof wiring device, 2...Housing, 3...
... Waterproof wiring circuit, 4 ... Electric machine tool, 5 ... Base, 6 ... Micro switch, 10 ... Low voltage electric wire, 20 ... Connection terminal, 22 ... Micro switch operating light, 24 ... Internal circuit operating light, 30,
31...220V AC power supply, 32, 33...Switching terminal, 34...COM terminal, 35...NC terminal, 36...NO terminal.

Claims

[Scope of claim for utility model registration] (1) A wiring device installed in a control circuit that directly switches and controls the high voltage current of an electric machine tool using a micro switch, which is fixed to the base of the electric machine tool. Consisting of a housing, a waterproof wiring circuit installed inside the housing that converts high voltage current to low voltage current and then switches and controls the high voltage current of the control circuit, and a micro switch connected to this waterproof wiring circuit. In this case, the waterproof wiring circuit is connected to a microswitch by a single electric wire formed into a loop through the microswitch, and has a circuit inside the circuit that transforms and rectifies high-voltage current into low-voltage current. a power supply circuit; a microswitch operation indicator circuit that operates only after the internal contacts of the microswitch are normally closed; and an internal circuit operation indicator circuit that operates only after the microswitch operation indicator circuit is activated to operate the relay circuit; A waterproof wiring device for a micro switch, characterized by comprising a relay circuit for switching high voltage current provided to an electric machine tool. (2) The microswitch operation indicator circuit has a delay circuit built into it, so that it will not operate even if the internal contacts of the microswitch are filled with moisture or oil, and will not operate until the internal contacts of the microswitch are closed normally. 2. The device of claim 1, wherein the device is circuited to operate. (3) The waterproof wiring circuit is provided with a microswitch operation light incorporated in the microswitch operation indication circuit and an internal circuit operation light incorporated in the internal circuit operation indication circuit as means for indicating good operation. 2. A device according to claim 1, characterized in that: 4. The apparatus of claim 1, wherein the housing has a thin metal layer plated on its outer surface.