JPS6324573Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a locking device for an operating handle.

Normally, when operating a breaker from the outside on a panel that has a built-in earth leakage breaker, no-fuse breaker, etc., a part of the operating handle exposed to the outside of the panel is attached so that it corresponds to the breaker handle. A method is used in which the breaker is turned on and off by rotating the handle.

Therefore, unless some kind of countermeasure is taken in this system, there is a risk that the operating handle may move from the set position due to vibration or impact, or that an accident may occur due to careless operation of the operating handle.

For this reason, as shown in FIG. 1, through holes 1a1 and 1a1 are formed in the vertical plate 1a and horizontal piece 1b, respectively.
The locking fitting 1 is fixed at a predetermined position on the panel P to the through hole 1b1 via the set screw 3, while the through hole 2a1 formed in the handle 2a of the operating handle 2 is used. By passing the cylinder lock 4 through both through holes 1a1 of the lock fitting 1 and locking it, the operation handle 2 is locked in a predetermined position using the vertical plate 1a of the lock fitting 1 as a stopper. This prevents the operation handle from malfunctioning due to vibration, impact, or carelessness.

However, in the above-mentioned lock device, the attachment position of the lock fitting 1 differs depending on whether the operating handle is locked in the ON position or the OFF position, which is cumbersome to use.

Furthermore, if excessive force is applied to the operating handle 2 on the opposite side of the vertical plate 1a of the lock fitting 1, the handle of the breaker installed in the panel P or the handle 2a of the operating handle 2 may be damaged. There were some shortcomings.

This device was proposed in order to eliminate the above-mentioned drawbacks; it is easy to install, prevents malfunctions, prevents damage to the operating handle and breaker handle, and has only two positions.
The object of the present invention is to provide a locking device that can be freely set to a lock.

This invention will be explained below based on an embodiment shown in FIGS. 2 to 5.

In the following explanation, the same parts as those explained in FIG. 1 are denoted by the same reference numerals.

Reference numeral 5 designates the main body of the locking device according to this invention. As shown in FIG. Locking pieces 5b, 5b facing the OFF position are formed, and each locking piece 5
Open passage grooves 5c, 5c are formed in the lower part of each passage groove 5c, 5b, and an adjustment screw 6, which adjusts the play of the operating handle 2, is provided in the upper part of each passage groove 5c, 5c.
Screw holes 5d, 5d into which the screws 6 are screwed are formed.

Further, mounting holes 5e, 5e are formed on the base 5a, into which mounting screws 8, 8 for attaching the base 5a to the panel P are screwed, and in the lower part, when the operating handle 2 is not locked. A holding groove 5f is formed in which the locking member 7 is attached and held.

The locking member 7 includes a horizontal piece 7 as shown in FIG.
It is formed into a substantially square shape from a and a vertical piece 7b,
A plurality of positioning holes 7c are formed in the horizontal piece 7a for arranging the cylinder lock 4 when the lock is locked, and the vertical piece 7b is used to restrict rotation of the operating handle 2 when the lock is locked.

A method of locking the operating handle 2 using this type of device will be explained.

First, as shown in FIGS. 2 and 5, the locking device main body 1 is positioned corresponding to the ON position and OFF position of the operating handle 2 exposed outside the panel P, and the screw hole 5 of the locking device main body 1 is opened.
The lock device main body 5 is fixed to the panel 2 by screwing the mounting screws 8, 8 into the mounting holes (not shown) provided in the panel P so that the mounting screws 8, 5e correspond to the mounting holes (not shown) provided in the panel P.

When the operating handle 2 is to be locked at the ON position, the operating handle 2 is positioned at the ON position.

At this time, since the installation play of the breaker installed in the panel P differs slightly depending on the breaker model, adjust the tightening of the adjustment screw 6 attached to the locking piece 5b on the ON position side. Adjust the play and press the operating handle 2.
into position.

Next, the horizontal piece 7a of the lock member 7 is positioned below the operating handle 2, that is, the horizontal piece 5a is positioned in the gap between the panel P and the handle 2a of the operating handle 2, and the horizontal piece 5a is engaged in the ON position side. It is fitted into the passage groove 5c of the stopper piece 5b.

At this time, the operating handle 2 is sandwiched between the vertical piece 7b of the lock member 7 and the locking piece 5b on the ON position side.

Then, among the holes 7c in the horizontal piece 7a exposed from the passage groove 5c of the locking piece 5b on the ON position side, the cylinder lock 4 is arranged in the hole 7c closest to the locking piece 5b on the ON position side. do.

Therefore, the handle 2a of the operating handle 2
Even if you try to move it to the OFF position, the cylinder lock 4 comes into contact with the locking piece 5b on the ON position side, and the vertical piece 7b of the lock member 7 locks the operating handle 2.
Rotation toward the OFF position is prevented, and the operating handle 2 is locked at the ON position.

In addition, when locking the operating handle 2 in the OFF position, as shown in FIG.
Set it to the OFF position and perform the subsequent operations in the same way as for the ON position.

In addition, as shown in FIG. 7, the lock device main body 5
Since a holding groove 5f is provided in the lower part of the base 5a, when the lock is released, the horizontal piece 7a of the lock member 7 is inserted into the holding groove 5f, and the cylinder lock 4 is inserted into the hole 7.
If the lock member 7 is provided in the position c, the lock member 7 can be prevented from being lost.

As explained above, according to this invention, ON
Not only can the position lock or OFF position lock be performed more easily than before, but also malfunction of the operating handle due to vibration, impact, or carelessness can be prevented.

Furthermore, since the rotation of the operating handle can be restricted, damage to the operating handle, the breaker handle, etc. can be prevented.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional locking device in a locked state, Fig. 2 is a perspective view of the locking device according to this invention in a locked state on the ON position side, and Fig. 3 is a perspective view of the locking device according to this invention. FIG. 4 is an enlarged perspective view of the main body, FIG. 4 is an enlarged perspective view of the locking member according to this invention, FIG. The locking device according to this invention
A plan view showing the locked state at the OFF position,
FIG. 7 is a plan view showing the locking device according to the invention in a released state. P...Panel, 2...Operation handle, 2a...
Handle, 5... Lock device body, 5a... Base,
5b... Locking piece, 5c... Passing groove, 5d, 5e...
Screw hole, 5f...Retaining groove, 6, 8...Screw, 7...
...Lock member, 7a...Horizontal piece, 7b...Vertical piece, 7c...Hole.

Claims (1)

[Claims for Utility Model Registration] A locking piece is formed at one free end of the approximately C-shaped base so as to face the ON position of the operating handle, and a passage groove is formed at the bottom of the locking piece. and the operating handle is attached to the other free end of the base.
A locking piece is formed to face the OFF position, and a passage groove is formed at the bottom of the locking piece,
A locking device main body disposed such that the operating handle is located on the opening side of the base; a vertical piece regulating the rotation of the operating handle; and a horizontal piece having a plurality of holes for arranging the lock. a locking member formed into a substantially square shape, with the horizontal piece positioned below the operating handle and fitted into a passage groove of a locking piece on the side where the operating handle is located; a lock disposed in a hole in a portion exposed from a passageway of a locking piece of a horizontal piece, and when the operating handle is positioned in either the ON or OFF position, the horizontal piece of the locking member is operated. The locking piece is positioned below the handle and fitted into the groove of the locking piece on the side where the operating handle is located, and the operating handle is disposed between the vertical piece of the locking member and the base of the locking device main body. located at
A locking device characterized in that a lock is provided in a hole in a portion of the horizontal piece exposed from the passageway of the locking piece to lock the lock.