JP2008097880A - Electric equipment equipped with lever switch on which sign is mountable - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric equipment in which a lever switch equipped with a mechanism which is not complicated and which makes a sign or the like easily attachable and detachable is installed. <P>SOLUTION: This is the electric equipment equipped with the lever switch for operating the equipment. The lever of the lever switch is switchable between a prescribed upper position and lower position. A groove is formed in the width direction of the lever, and the groove is wider in the deeper end than in the entrance part. In a state that the lever is at the lower position, a string hooked at the groove is retainable in the groove. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  More particularly, the present invention relates to a breaker including a lever switch.

  In general households and power plants, no-fuse breakers and earth leakage breakers, which are devices that automatically shut off a circuit when a current exceeding a predetermined value flows, are installed. With these breakers, when an overcurrent (overload current, short-circuit current) flows through the electric circuit, the electric circuit is cut off, and the electric circuit and the like below the breaker are protected from burning. When electrical work or installation work is performed in an electric circuit or equipment below the breaker, the work is performed after turning off the breaker switch (cutting off the electric circuit). And especially when working at a power plant or large-scale building, because there are many workers and breakers, when working with the breaker switch turned off, each breaker is marked with `` working '' By clearly indicating that the work is performed on the lower side of the breaker, it is possible to prevent other workers from turning on the breaker during the work.

  Since the switch of the breaker is for cutting off the electric circuit, there is no appropriate place or the like for attaching the above-mentioned sign or the like. Therefore, when the breaker switch is turned off and the sign is attached, a double-sided tape or the like is attached to the back of the sign and attached to the breaker switch. In addition, when there are a plurality of signs such as “working in process A” and “working in process B”, they may be stacked one by one as each work is completed. .

  However, because the breaker switch is not originally designed to be attached to a sign, etc., the sign attached to the breaker switch with double-sided tape, etc. may cause a person to hit or the adhesive strength of the tape will be reduced. May be removed. If the sign is removed, there is a possibility that another operator or the like may turn on the breaker switch because there is no sign, even during electrical work or installation work. In addition, after the sign is removed, the adhesive adhered to the tape may remain on the switch portion. In such a case, the switch portion is sticky, or dust or dirt adheres to the adhesive and becomes dirty, so it is often necessary to clean the switch portion.

  In view of such a situation, the present invention can easily attach and detach the signs and the like attached to the lever of the lever switch with a simple configuration, and the attached signs and the like can be detached except by a predetermined removal operation. It is an object of the present invention to provide an electric appliance including a lever switch that can prevent the occurrence of the accident.

  In the electric device including the lever switch for operating the device according to the present invention, the lever of the lever switch can be switched between a predetermined upper position and a lower position, and the lever is arranged on the upper surface of the lever in the width direction of the lever. A groove is formed, the groove is deeper than the entrance portion, and the string hung on the groove can be held in the groove in a state where the lever is in the lower position. Furthermore, a gate that enables opening and closing of the inlet portion may be provided at the inlet portion of the groove, or the gate may be biased in a closing direction by a spring.

  Moreover, the structure which the protrusion part which protrudes upwards is provided in the near side of the entrance part of the said groove | channel at the front-end | tip part of the said lever, or the said electric equipment may be a breaker may be sufficient.

  According to the present invention, it is possible to provide a lever switch that has a simple configuration and can be easily attached / detached with a sign or the like. In addition, since the sign attached to the lever switch can be removed only by a predetermined removal operation, it is possible to prevent the breaker switch from being turned on because there is no sign during electrical work or installation work. It becomes possible. Furthermore, since the sign is not attached but is hung with a string, the lever switch is not sticky or dirty.

=== Configuration example of an electric device provided with a lever switch ===
FIG. 1 is a perspective view (including an enlarged view of a lever switch 20) showing a no-fuse breaker 100 according to an embodiment of the present invention. As shown in the figure, the no-fuse breaker 100 is a commercially available no-fuse breaker, and is used to cut off the circuit housing of the no-fuse breaker 100 and the device housing 10 that serves as a housing of the no-fuse breaker 100. And a lever switch 20. The no-fuse breaker 100 is attached to a building wall surface or the like. The device housing 10 includes a circuit board and the like of the no-fuse breaker 100 and plays a role of protecting them. The lever switch 20 is attached to the front panel of the device housing 10, and the lever 22 of the lever switch 20 can be switched up and down.

  The lever switch 20 only needs to be able to be set to ON (energization possible) and OFF (interruption of the electric circuit). The lever switch 20 is turned on by positioning the lever 22 in the upper position and turned off in the lower position. Of course, a configuration in which the lever 22 is turned on by being positioned at the lower position and turned off by being positioned at the upper position is also possible. The lever 22 is made of a plastic material, and a groove 24 is formed in the vicinity of the tip on the upper surface thereof.

  FIG. 1 shows a state where the lever 22 is in the lower position and the lever switch 20 is OFF. A groove 24 formed on the upper surface of the lever 22 in the width direction is wider than the inlet 24a. In this groove 24, a “work in progress” sign 28 having a handle portion formed by a string 26 is suspended. Such a configuration of the groove 24 makes it easy to hang the string 26 and the like from the inlet 24a into the groove 24, and even if the string 26 is pulled in the vertical direction, the string 26 is held in the space behind the groove 24, and easily from the inlet 24a. Prevents falling out. The suspended sign 28 can be removed from the groove 24 by a simple operation of taking the string 26 upward from the inlet 24 a of the groove 24. The inner surface of the groove 24 is preferably smooth in order to reduce friction with the string 26.

  At the tip of the lever 22 (a position before the inlet 24a of the groove 24), a protruding portion 22a protruding upward is provided. By this protrusion 22a, even if the string 26 comes out of the groove 24, the string 26 of the sign 28 can be prevented from being caught by the protrusion 22a and falling.

  In addition, although the electric equipment used in a present Example is a no-fuse breaker, if it is an electric equipment provided with a lever switch, it will not be restricted to this.

=== Other configuration examples ===
In the configuration shown in FIG. 2, the lever switch 30 has the same basic configuration as the lever switch 20 of the above embodiment, but further includes a gate plate 34 that can open and close the inlet 24 a of the groove 24 provided in the lever 32. . The gate plate 34 is urged in the closing direction (that is, upward) from the inside of the groove 24 by a spring (not shown), and closes the inlet 24a of the groove 24 when no external force is applied. Further, by pressing the gate plate 34 from the outside of the groove 24, the inlet 24a of the groove 24 can be opened. With this configuration, the string 26 or the like suspended from the groove 24 can be more reliably prevented from falling out of the inlet 24a, and the groove 24 can be formed by simply pressing the gate plate 34 downward with a finger or the like to open the groove 24. The suspended string 26 can be easily removed.

  As described above, according to the lever switches 20 and 30 of the above-described embodiment, the configuration is simple and the signs and the like can be easily attached and detached. In addition, since the sign attached to the lever switch can be removed only by a predetermined removal operation, it is possible to prevent the breaker switch from being turned on because there is no sign during electrical work or installation work. It becomes possible. Furthermore, since the sign is not attached but is hung with a string, the lever switch is not sticky or dirty.

It is the perspective view of the no fuse breaker in one Example of this invention, and the enlarged view of a lever switch. It is an enlarged view of the lever switch in one Example of this invention.

Explanation of symbols

10 Equipment housing 20, 30 Lever switch 22, 32 Lever 24 Groove 34 Gate plate 100 No-fuse breaker

Claims (5)

An electrical device comprising a lever switch for operating the device,
The lever of the lever switch can be switched between a predetermined upper position and a lower position,
A groove is formed on the upper surface of the lever in the width direction of the lever,
The groove is deeper than the entrance portion, and the strap can be held in the groove while the lever is in the lower position.
Electrical equipment with a lever switch. A gate that enables opening and closing of the entrance portion is installed at the entrance portion of the groove,
An electric device comprising the lever switch according to claim 1. The gate is biased in a closing direction by a spring,
An electric device comprising the lever switch according to claim 2. The front end portion of the lever is provided on the front side with respect to the entrance portion of the groove, and is provided with a protruding portion protruding upward.
An electric device comprising the lever switch according to claim 1. The electrical device is a breaker,
An electric device comprising the lever switch according to claim 1.

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