JPH04123721A - Protective cover of switch - Google Patents

Abstract

PURPOSE:To prevent malfunction due to contact or the like and operation due to mischief by closing a door so as to operate a lock key and engage a tip of the lock key with an engaging hole on the body side to enable the door to be locked. CONSTITUTION:A body 10 consisting of a synthetic resin plastics is frame-like formed, and a peripheral wall 11 is formed on the surface peripheral part. The top center of the door 14 is recessed, and a projection part 13 of the body 10 is fitted into this recessed part, then a formed axis is inserted into an axis hole body 10 formed in the inside on both sides of the recessed part for being free-turnably supported by the body 10. Further, a lock key 18 is free slidably mounted on the rear of the door 14, and when the door 14 is closed to operate the lock key 18 and to engage a tip of the lock key 18 with an engaging hole on the body 10 side, a closed state of the door 14 can be locked. Thereby, even if the door is touched by a man or hit by a ball, a switching device is excluded from a wrong operation and operation due to a mischif can be prevented.

Description

[Detailed description of the invention] [Industrial application fields] The present invention relates to a protective cover for a switch.

[Prior Art] Fig. 8 shows a schematic configuration of a remote monitoring and control system, which includes a central control unit 1, a plurality of monitoring terminals 2 with unique addresses set and monitoring switches S and -S4, and a load L1.
A control terminal 3 for controlling ~L4, a wireless relay terminal 7, an external interface terminal 8, and a pattern setting terminal 9 are connected by a pair of signal lines 4, and a signal is transmitted from the central control device 1. Transmission signal V sent out on line 4
As shown in FIG. 9(a), s includes a start pulse signal ST indicating the start of signal transmission, a mode data signal MD indicating the signal mode, and 8-bit address data for calling the terminals 2.3.7 to 9. Address data signal AD to be transmitted,
A multi-polar (± 24v) time division multiplexed signal, and data is transmitted by pulse width modulation. In each terminal device 2, 3.7 to 9, when the address data of the transmission signal Vs received via the signal line 4 and its own unique address data match, the transmission signal Vs
At the same time, the monitoring data signal is sent back as a current mode signal (a signal sent by short-circuiting the signal lines 4 via an appropriate low impedance) in synchronization with the return standby signal WT of the transmission signal Vs. It looks like this. The central control device 1 also includes a dummy signal transmitting means that always sends out a dummy transmission signal in which the mode data signal MD is in a dummy mode, and one of the monitoring terminal 2 or the wireless relay terminal 7 and the external interface terminal. 8. Figure 9 (b) returned from the pattern setting terminal 9
) When an interrupt signal Vi such as shown in FIG.
Interrupt processing means is provided for accessing .about.9 and returning monitoring data. The central control device 1 also uses the monitoring data sent back to the central control device 1 from the monitoring terminal 2 or the wireless relay terminal 7, the external interface terminal 8, and the pattern setting terminal 9 as described above. and create control data to be transmitted to the control terminal 3 that controls the corresponding load, ~L4,
The control data is transmitted to the control terminal 3 via the signal line 4.
It is designed to time-division multiplex transmit and load the .about.L, and to control .about.L.

The wireless relay terminal device 7 is a terminal device that relays data of an optical wireless system consisting of an optical wireless transmitter Y, an optical wireless receiver is received by the optical wireless receiver X, the received data is received via the wireless signal line 4a, and this data is transferred to the central control device 1.

The external interface terminal 8 is a terminal that performs data transmission with the external control device 8a, and the pattern setting terminal 9 transmits pattern control data input from the data input section 9a to the central control device 1. This is the terminal device for the transfer. Note that a remote control relay 5 for load control (a latching relay that can be turned on and off by a hand switch) is controlled by the control output of a control terminal 3 disposed in the distribution board 6 or relay control board 6a. It is now possible to do so.

[Problems to be Solved by the Invention] As described above, the remote monitoring and control system described above has been widely used in facilities such as public gymnasiums because it saves wiring and can remotely control the load.・Many of the switches are one-shot type, which causes the problem that the load is likely to malfunction when hit by a person, ball, etc.

It was also sometimes manipulated by pranks.

The present invention has been made in view of the above points, and an object of the invention as claimed in claim 1 is to prevent a switch device from being operated carelessly and to make it difficult to operate it by mischief. It is to provide a protective cover for the switch.

Further, the object of the invention as claimed in claim 2 is to easily correspond to a switch device that is installed in series in accordance with the above-mentioned object.
Moreover, it is an object of the present invention to provide a protective cover for a switch that can maintain a constant height position of a door corresponding to each switch device.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the invention according to claim 1 provides a frame-shaped structure disposed on the switch plate surface so that the operation part of the switch device is inserted into the central opening window. a body, a door that is pivotally supported by the frame-shaped body to open and close the central opening window, and an operation part provided in the door and exposed in an operation hole opened in the surface of the door, the operation part A lock key that allows the tip to retract from the side of the cover by sliding operation,
An engagement hole provided on the inner surface of a peripheral wall formed on the surface of the body so as to surround the periphery of the cover when the door is closed, and for engaging the tip of the lock key protruding from the side surface of the cover. It is.

Further, in the invention as claimed in claim 2, the size of the body is formed to correspond to a series of sizes that are standard dimensions of wiring devices, and a plurality of bodies are integrally connected in the lateral direction by a disconnectable connecting portion. It is something.

[Function] According to the present invention, when the door is closed and the lock key is operated,
By engaging the tip of the lock key with the engagement hole on the body side, you can lock the closed state of the door, so the switch device is installed inside the central opening window! The operating part of the door is not exposed to the outside, so even if the door is touched by a person or hit by a ball, the switch device will not malfunction, and the operating part of the lock key that locks the door is covered. Since the lock key is exposed in the operation hole opened on the surface of the lock key, it is difficult to easily unlock the lock key with a finger or the like, and mischief operations can be prevented.

In addition, the size of the body is formed to correspond to a series of sizes that are the standard dimensions of wiring devices, and a plurality of bodies are integrally connected in the horizontal direction by a disconnectable connecting part, so that the body can be connected to the connecting part. Free cuts can be made by cutting, so it is easy to adjust to successive failures of the switch device, and the height of the door can be adjusted more easily than when the door is arranged in series.

[Example 7 The present invention will be explained below with reference to Examples.

FIG. 1 shows an embodiment in which dimensions are set to correspond to a switch device in which two switches are arranged, and a body 10 made of a synthetic resin molded product is formed into a frame shape. A peripheral wall 11 projecting forward is formed on the surface periphery. In the figure, a shaft (not shown) for pivotally supporting a door 14 made of a synthetic resin molded product projects from both sides of the protrusion 13 at the center of the upper part, and the door 14 has a concave cutout at the center of the upper end. By fitting the protruding portion 13 into this palindromic portion and inserting the shaft into shaft holes (not shown) formed on both inner surfaces of the recessed portion, the shaft is pivotally supported by the body 10 so as to be openable and closable. In the completed state, it fits into a recess 12 on the surface side of the body 10 surrounded by the peripheral wall 11 of the door 14. Further, an opening/closing operation knob 17 is integrally protruded from the center of the lower end of the door 14.

Furthermore, a lock key 18 is attached to the back surface of the door 14 so as to be slidable in the lateral direction, and the tip thereof can freely come out and retract from a hole 19 formed in the side surface of the door 14. Fig. 2 shows a cross-sectional configuration, and the lock key 18 has both ends supported by support parts 2o provided on the back of the door, and is slidable between the back of the door and the support part 2o. The sliding operation is performed by inserting the operating part 18a from the back side into the operating hole 15 opened on the surface of the door 4 and exposing the operating part 18a into the operating hole 15. This is done by pressing . The operation section 18a is then operated as shown in FIG.
), the tip of the lock key 18 does not protrude outward from the hole 19 when the lock key 18 is in the opposite position from the hole 19 side, as shown in FIG. 18
When a is pressed, the lock key 18 slides and its tip protrudes from the hole 19. This protruding tip engages with an engagement hole 16 formed on the corresponding inner surface of the peripheral wall 11 of the body 1. In this engaged state, a protrusion 21 protruding from the inner surface of the support portion 20 is releasably engaged in the recess 18b on the back surface of the lock key 18 to prevent the lock key 18 from moving inadvertently. Retain state. Furthermore, lock key 1
8 can be attached by fitting it into the side opening of the gap between the support part 20 and the back surface of the door. Further, the mounting structure of the lock key 18 is not particularly limited to the embodiment.

Then, as shown in FIG. 5, the back side of the body 10 is fixed to the surface of the switch plate 22 of the switch device using double-sided tape, adhesive means, screw fixing, or other suitable means, and the body 10
The installation of the protective cover for the switch of the present invention is completed by inserting the switch button 23 of the switch device into the central opening window 10a so that it can be operated from the outside when the door 14 is opened.

Although the above embodiment is adapted to a switch device having two switches, it may also be formed to a size compatible with a switch device having one switch as shown in FIG. It is also possible to match the dimension 1 corresponding to the dimensions of a series of modules in which three are arranged.

Furthermore, as shown in FIG. 7, a plurality of protective covers corresponding to the dimensions of the serial module may be integrally connected to accommodate the case where a plurality of switch devices of the -i module are installed in series, and in this case, two or more adjacent By integrally connecting the body 10 with the disconnectable connecting portion 24, the protective cover can be removed as necessary to adjust the number of connections to correspond to consecutive failures of the switch device. In addition, each door 14
This has the advantage that it is not necessary to adjust the σ height.

[Effects of the Invention] The invention as claimed in claim 1 includes a frame-shaped body disposed on the switch plate surface so that the operation part of the switch device is inserted into the central opening window, and a frame-shaped body that is pivotally supported by the frame-shaped body. a door for opening and closing the central opening window;
The operation part is exposed in the operation hole opened on the surface of this door,
A lock key is provided on the inner surface of the peripheral wall formed on the body surface so as to surround the cover periphery when the door is closed, and a lock key is provided on the inner surface of the peripheral wall formed on the body surface so as to surround the cover periphery when the door is closed. It consists of an engagement hole that engages the tip of the protruding lock key, so the door can be closed by closing the door, operating the lock key, and engaging the tip of the lock key with the engagement hole on the body side. Since the state can be locked, the operating part of the switch device placed inside the central opening window is not exposed to the outside, so even if the door is touched by a person or hit by a ball, the switch device will not malfunction. In addition, the operation part of the lock key that locks the door is exposed in the operation hole opened on the surface of the cover, so it is difficult to easily release the lock with the lock key with your finger, making it difficult to operate by mischief. It has the effect of being able to prevent this.

Further, the invention according to claim 2 is characterized in that the size of the body is formed to correspond to a series of sizes that are standard dimensions of wiring devices, and a plurality of the bodies are connected in the lateral direction through a disconnectable connecting portion. Since the body can be removed by cutting the connecting part, it can be easily adjusted to match the number of stations of the switch device, and it is easier to adjust the height of the door compared to the case where the doors are installed in series one by one. There is an effect that it can be done.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the main parts of the above, Fig. 3 is an explanatory diagram of the operation of the same, and Fig. 4 is an enlarged perspective view of the same body with a part omitted. Figure 5 is a usage explanatory diagram of the same as above, Figure 6 is a perspective view of another embodiment of the present invention, Figure 7 is a perspective view of another embodiment of the present invention, and Figure 8 is a remote monitoring and control system. FIG. 9 is an explanatory diagram of the same operation. 10 is a body, 10a is a central opening window, 11 is a peripheral wall, 12
is a recess, 14 is a door, 15 is an operation hole, 16 is an engagement hole, 18
a is an operation unit, and 18 is a slide key. Agent Patent Attorney Ishi 1) Long 7 11 is the peripheral wall 12 is the recess 14 is the door 15 is the operation hole 18 is the slide key Figure 3 (b) Figure 4! 7gl Figure 5 Figure 6

Claims (2)

[Claims] (1) A frame-shaped body disposed on the switch plate surface so that the operation part of the switch device is inserted into the central opening window, and a door that is pivotally supported by this frame-shaped body to open and close the central opening window. and a lock key that is provided on the door and has an operating section exposed in an operating hole opened on the surface of the door, and whose tip extends and retracts from the side of the cover by sliding the operating section, and when the door is closed. The switch comprises an engagement hole provided on the inner surface of a peripheral wall formed on the surface of the body so as to surround the periphery of the cover in the state of the switch, and for engaging the tip of the lock key protruding from the side surface of the cover. protective cover. (2) The size of the body is formed to correspond to a series of sizes that are the standard dimensions of wiring devices, and a plurality of the bodies are integrally connected in the lateral direction by a connection part that can be freely cut. A protective cover for a switch according to claim 1.