JP2821669B2 - Operation board - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation panel mainly used for operating equipment installed outdoors, such as opening and closing a water gate in an irrigation canal, which prevents outsiders from arbitrarily operating various switches. Operation panel that can be.

[0002]

2. Description of the Related Art An operation switch of a device to be operated,
Conventionally, an operation panel equipped with a display lamp or the like that indicates the operation status has a switch that has a large effect directly on the operation of the equipment in use or that is related to an operation that may pose a danger to workers. In order to prevent unintentional operation by a person who has not received the operation permission or erroneous operation due to contact or the like, a protective cover and a lock of the switch are sometimes attached. But,
Such a cover is often made of a durable and large one, and in a small operation panel in which a display portion and a switch portion are close to each other, the display portion is hidden, so that there is a surface that is difficult to use. When a changeover switch is used as a switch, it is inconvenient to attach the cover because the changeover state of the changeover switch cannot be understood. In addition, since it is necessary to provide a special lock mounting part on the cover and the operation panel body, a small operation panel must be enlarged to secure the mounting part, which is disadvantageous in terms of space and cost. I was

[0003]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to solve the above-mentioned problems, to make it easy to understand the switching state of the changeover switch, and to keep the important switch in a compact shape. An object of the present invention is to provide an operation panel that can be reliably prevented from being operated and the display portion can be easily viewed at any time.

[0004]

Means for Solving the Problems The configuration of the present invention which has solved the above problems is as follows: 1) Switching is performed in an operation panel in which a button switch, a changeover switch, and an indicator lamp necessary for operation and adjustment are arranged in front of a storage case. The operation knob of the switch is a rotary type, and a hole is provided at the tip of the operation knob to allow a padlock to pass through.The cover that covers the button switch is hinged to the case, and the operation knob is inserted to switch the changeover switch to multiple switches. An operation panel, wherein a hole having a hole shape for fixing so as not to rotate at a position is provided in the cover, the cover is closed, an operation knob is fitted into the hole of the cover, and a padlock is attached to the exposed hole at the tip. 2) The operation panel according to 1), wherein the cover has a shape to be exposed without covering the display lamp provided on the front of the case.

[0005] In the present invention, there are cases where all switches and display lamps are covered with a cover, and cases where they are not covered. Only important switches that need protection from unintended operation may be covered with the cover. In addition, a plurality of changeover switches and a pair of holes in the cover may be provided.

[0006]

According to the operation panel of the present invention, the switch to be operated and the button switch provided on the front of the case are appropriately operated while the cover is open to operate the device to be operated. After the operation is completed, the cover is closed so that the operation knob of the changeover switch fits into the hole of the cover.
In this state, the button switch on the front is hidden by the cover, and the changeover switch fits into the hole shape of the cover and is restrained from moving. Further, when a padlock is passed through the hole at the tip of the operation knob and locked, the cover is completely fixed and each switch is held in a state where it cannot be operated. At this time, the portion of the front of the operation panel that is not covered with the cover remains exposed to the outside. Since the changeover switch is merely fitted into the hole of the cover, the changeover state can be immediately confirmed by the direction of the operation knob. Thereafter, when performing an operation, the padlock is unlocked, the padlock is removed from the hole of the operation knob, and the cover is opened so that each switch can be operated.

In a configuration in which the cover does not cover the display lamp portion, the display lamp is exposed to the outside even if the cover is closed and fixed and each switch is held in an inoperable state. You can keep checking.

[0008]

An embodiment of the present invention will be described with reference to the drawings.
1 is a front view showing an embodiment, FIG. 2 is a sectional view taken along line AA of FIG. 1, FIG. 3 is an explanatory view showing an open state of a cover of the embodiment, and FIG. 4 shows another example of a cover of the embodiment. FIG. 5 is an explanatory view showing another example of the operation knob of the changeover switch and the hole of the cover according to the embodiment. The operation panel 1 of the present embodiment is provided mainly for operation of the sluice of the irrigation canal, indoors or outdoors away from the sluice, where an outsider may enter.
On the front of a small case 2 having an outer diameter of about 10 cm installed on the stand 11, three button switches 4 for opening / closing or stopping the water gate, a rotary changeover switch 5 for selecting an operation panel to be used, and a water gate Are provided. Inside the case 2, an LED 6 a for the display lamp 3, a limit switch 6 b forming a main body of the changeover switch 5 and the button switch 4,
The connector 6c and the cable 6d mounted on the substrate 6
Is connected to the operation target through. In order to prevent unintended operation of each switch, a metal compact cover 7 that covers the lower half of the front surface of the case 2 so that it can be opened and closed is hinged to the lower portion of the case 2. The cover 7 is provided with a hole 7a into which the operation knob 5a of the changeover switch 5 is fitted when closed to prevent the changeover. The holes 7a correspond to the three switching positions of the changeover switch 5, respectively, and have a shape that prevents rotation of the changeover switch 5 from each changeover position to another position. On the other hand, at the tip of the operation knob 5a of the changeover switch 5 fitted into the hole 7a, a cover 7 is provided.
A hole 5b is provided for passing a latch 8a of a padlock 8 used for fixing.

As another example of the cover 7 of the embodiment, an example of a type that covers the entire front surface is also shown (see FIG. 4). Further, as another example of the operation knob 5a of the changeover switch 5 and the hole 7a of the cover 7 in the embodiment, an example in which the respective shapes are changed is shown (see FIG. 5). The internal structure other than the cover 7 and the operation knob 5a is the same as described above, and the reference numerals are common.

The operation panel 1 according to the present embodiment shown in FIGS. 1 to 3 uses a button switch 4 and a changeover switch 5 so that a water gate to be operated performs a predetermined operation with a cover 7 opened. Operate each. When it is confirmed that the sluice has normally operated directly or by the display lamp 3, the cover 7 is closed, all the button switches 4 are covered, and the holes 7a of the cover 7 are closed in order to prevent unintended operation.
The operation knob 5a of the changeover switch 5 is fitted. When the cover 7 is closed, each button switch 4 is hidden, and the operation knob 5a of the changeover switch 5 is
Since these switches are restricted by a, these switches cannot be operated. From this state, the latch 8a of the padlock 8 is further increased.
Is passed through the hole 5b at the tip of the operation knob 5a coming out of the hole 7a of the cover 7, and when the lock is completely locked, the cover 7 is fixed in a closed state, and each switch is reliably protected from unintended operation. The indicator lamp 3 on the front of the case 2 has a cover 7
Therefore, the operation state of the floodgate by the display lamp 3 can be checked at all times. Further, the switching position of the changeover switch 5 can be easily confirmed by the tip of the operation knob 5a protruding from the hole 7a of the cover 7. When the operation state of the lock is changed after the cover 7 is fixed, the padlock 8 is released from the locked state, the latch 8a is removed from the hole 5b of the operation knob 5a, and the cover 7 is opened.
And the changeover switch 5 can be operated immediately, so that the necessary switch operation may be performed. In this way, when the switch is operated, the cover 7 is opened, and at other times, the cover 7 is closed and locked with the padlock 8, and if the key for locking the padlock 8 is managed, other than the authorized worker Operation panel 1
Can not operate the floodgate, so that the safety of the self-operation without permission can be maintained.

[0011]

According to the present invention, by employing the above-described configuration, important switches related to the operation of the operation target device can be reliably protected from unintended operation, the switching state of the changeover switch can be easily understood, and the operation of the device can be easily understood. The situation can be accurately grasped, and a compact shape can be realized, thus realizing space saving and cost reduction.

If the cover is formed so as not to cover the display lamp portion, the display lamp can be easily viewed at any time, and the operating state can be more accurately grasped.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an explanatory diagram illustrating an open state of a cover according to the embodiment.

FIG. 4 is an explanatory view showing another example of the cover of the embodiment.

FIG. 5 is an explanatory diagram showing another example of the operation knob of the changeover switch and the hole of the cover in the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Operation panel 2 Case 3 Indicator lamp 4 Button switch 5 Changeover switch 5a Operation knob 5b Hole 6 Substrate 6a LED 6b Limit switch 6c Connector 6d Cable 7 Cover 7a Hole 7b Hinge part 8 Padlock 8a Hasp 9 Operation name display part 10 Status display Part 11 Stand

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H02B 15/00 E02B 7/20 H02B 1/30

Claims (2)

(57) [Claims] 1. An operation panel in which a button switch, a changeover switch, and an indicator lamp necessary for operation and adjustment are arranged on the front of a storage case, wherein the changeover switch has a rotary operation knob and a tip of the operation knob. A hole for passing a padlock is provided in the part, a cover covering the button switch is hinged to the case, and a hole having a hole shape for fixing the changeover switch so as not to rotate at a plurality of switching positions by fitting the operation knob is provided in the cover. An operation panel, wherein the cover is closed, an operation knob is fitted into the hole of the cover, and a padlock is attached to the exposed hole at the tip. 2. The operation panel according to claim 1, wherein the cover is formed so as to be exposed without covering a display lamp provided on the front of the case.