JP2021125897A - Switching device and cover member - Google Patents

Abstract

To propose a switching device and a cover member that enable safe and easy attachment and removal of the cover member.SOLUTION: A switching device 100 switches the operation of a plant 200. The switching device 100 includes: a rail member 130 extending substantially in a horizontal direction; a plurality of switch elements 10, 20 mounted on the rail member 130; and a cover member 110 covering at least some of the plurality of switch elements 10, 20. The rail member 130 has: a substrate part 131 for fixing the rail member 130 to a fixed wall W; and an upper rail 133 connected to an upper end of the substrate part 131 and protruding forward. The cover member 110 has: a front plate 111 for covering at least some of the switch elements from the front; and a side plate 113 for covering the switch elements 10, 20 from a side. The cover member 110 is made of an electrically insulating material or has an electrically insulating treatment on its surface. A rear part of the side plate 113 is provided with an engagement part to which the upper rail 133 is engaged.SELECTED DRAWING: Figure 2

Description

The present disclosure relates to a switching device for switching the operation of a plant and a cover member used for the switching device.

In plants such as water purifiers and waste treatment equipment, in order to smoothly manage the entire plant, the operator manages the plant by operating multiple operation switches arranged on the switchboard and control panel of the plant. There is.

The plurality of operation switches described above are arranged at height positions on the switchboard and control panel that are easily accessible to the driver so that the driver can easily operate the switches. Therefore, multiple operation switches may be densely arranged in a small area, and the operator mistakenly intends to operate the sub-control switch that is not related to the main control of the plant, and the main control switch that is related to the main control of the plant. If operated, it could have a great impact on the operation of the plant.

To solve such a problem, Patent Document 1 discloses a protective cover for an operation switch, which suppresses an erroneous operation of the operation switch by covering the operation switch with a protective cover.

Japanese Unexamined Patent Publication No. 2012-80675

However, in the configuration described in Patent Document 1, the protective cover has a plurality of magnets, and the protective cover is fixed to the control panel by attracting the magnets to the metal control panel housing. ing. Therefore, when the protective cover is attached to the operation switch, the magnet may touch the operation switch to short-circuit the circuit, and there is room for improvement.

An object of the present disclosure is to solve such a problem, and an object of the present invention is to propose a switching device and a cover member capable of safely and easily attaching and detaching the cover member. be.

The switching device of the present disclosure is
It is a switching device that switches the operation of the plant.
A rail member fixed to a fixed wall and extending substantially horizontally, a plurality of switch elements attached to the rail member, and a cover member covering at least a part of the switch elements of the plurality of switch elements are provided.
The rail member has a substrate portion for fixing to the fixed wall, and an upper rail which is connected to the upper end portion of the substrate portion and is provided so as to project forward.
The cover member has a front plate that covers at least a part of the switch elements from the front and a side plate that covers the switch elements from the side, and is formed of an electrically insulating material or has an electrically insulating treatment on the surface. Has been applied,
The rear portion of the side plate is provided with an engaging portion with which the upper rail is engaged.
By adopting such a configuration, when the cover member is attached to the rail member, even if the cover member comes into contact with the terminal of the switch element or the like, the circuit is not short-circuited. Further, the cover member can be mounted by engaging the upper rail of the rail member with the engaging portion of the cover member, and it is not necessary to fasten the two. Therefore, the cover member can be easily attached and detached, and the maintainability of the plant is improved.

Further, in the switching device of the present disclosure, in the above configuration, the engaging portion is preferably an insertion groove into which the upper rail is inserted from below.
By adopting such a configuration, the cover member can be engaged with the rail member by inserting the upper rail into the insertion groove from below, so that the cover member can be more easily attached and detached, and the maintainability of the plant is improved. ..

Further, in the switching device of the present disclosure, in the above configuration, the rail member further includes a lower rail which is connected to the lower end portion of the substrate portion and is provided so as to project forward, and the side plate is provided from the rear surface toward the front. It is preferable that the lower rail has a recessed portion and the lower rail abuts on the front end surface of the recessed portion.
By adopting such a configuration, the rotational moment generated by the weight of the cover member can be supported by the lower rail, so that the cover member can be stably supported at two points, the upper rail and the lower rail.

Further, in the switching device of the present disclosure, in the above configuration, the insertion groove extends upward from the upper end portion of the recess, and the front end surface of the insertion groove is located on the same plane as the front end surface of the recess. It is preferable that the structure is provided.
By adopting such a configuration, the upper rail can be smoothly guided and inserted into the insertion groove along the front end surface of the recess. Further, the posture of the front plate of the cover member in the side view can be maintained in a state parallel to the substrate portion of the rail member.

Further, in the above-described configuration, the switching device of the present disclosure preferably has an R surface provided on at least one of the leading edge and the trailing edge at the upper end of the insertion groove.
By adopting such a configuration, it is possible to suppress the generation of burrs near the upper end portion of the insertion groove and smoothly insert the rail portion of the upper rail into the insertion groove.

Further, in the switching device of the present disclosure, in the above configuration, it is preferable that the ridge portion at the lower end of the rear end portion of the insertion groove is provided with an R surface or a chamfer.
By adopting such a configuration, the rail portion of the upper rail can be inserted into the insertion groove without being caught by the ridge portion.

In addition, the cover member of the present disclosure is
A cover member that covers a switch element attached to a rail member having a board portion for fixing to a fixed wall and an upper rail that is connected to the upper end portion of the board portion and is provided so as to project forward.
It has a front plate that covers the switch element from the front and a side plate that covers the switch element from the side, and is formed of an electrically insulating material or has an electrically insulating treatment on its surface.
The rear portion of the side plate is provided with an engaging portion with which the upper rail is engaged.
By adopting such a configuration, when the cover member is attached to the rail member, even if the cover member comes into contact with the terminal of the switch element or the like, the circuit is not short-circuited. Further, the cover member can be mounted by engaging the upper rail of the rail member with the engaging portion of the cover member, and it is not necessary to fasten the two. Therefore, the cover member can be easily attached and detached, and the maintainability of the plant is improved.

According to the present disclosure, it is possible to propose a switching device and a cover member capable of safely and easily attaching and detaching the cover member.

It is a block diagram which shows the schematic structure of the plant which switches the operation by the switching device which concerns on one Embodiment of this disclosure. It is a perspective view which shows the structure of the switching device which concerns on one Embodiment of this disclosure. It is a perspective view which shows the structure of the switch element used in the switching device shown in FIG. It is a front view of the rail member used for the switching device shown in FIG. It is a side view of the rail member used for the switching device shown in FIG. It is a front view of the cover member used for the switching device shown in FIG. It is a side view of the cover member used for the switching device shown in FIG. It is a bottom view of the cover member used for the switching device shown in FIG. It is a detailed view of part A in FIG. 5B. It is a side view which shows the state which started to attach the cover member to a rail member. It is a side view which shows the state which the attachment of the cover member to a rail member is completed.

Hereinafter, the present disclosure will be described in more detail with reference to the drawings.

FIG. 1 is a block diagram showing a schematic configuration of a plant 200 whose operation is switched by the switch elements 10 and 20 used in the switching device 100 according to the embodiment of the present disclosure. The plant 200 is, for example, a water treatment plant, a waste treatment apparatus, or the like.

The plant 200 includes a control unit 210 that controls the entire plant 200, a functional unit 220 that performs processing according to the function of the plant 200, and a switching device 100 that switches the operation of the plant 200. Note that, in FIG. 1, among the switching devices 100, the switch elements 10 and 20 that are directly involved in the main control of the plant 200 are shown, but other mechanical parts are shown in FIG. 2 and the like. The operation switching of the plant 200 referred to here is in a broad sense such as operation on / off of each functional unit 220, power supply on / off, change of control parameters, operation mode switching between normal mode / maintenance mode / lock mode, and the like. It is a concept that includes operation switching.

The control unit 210 performs integrated control of each function unit 220. The control unit 210 has a microcomputer, and includes an input / output interface, a CPU (Central Processing Unit), a RAM (Random-Access Memory), a ROM (Read-Only Memory), an inverter, and the like. The CPU can execute the control program. By connecting the control unit 210 to the switch element 10 via the input / output interface, the operation mode of the plant 200 and the like can be controlled by switching the switch element 10. Therefore, the switch element 10 is a main control switch related to the main control of the plant 200. The RAM can temporarily store variables and calculation results necessary for executing a program, for example, and the ROM can store a control program, for example. The inverter converts the electric power supplied from the AC power supply 250 into DC electric power and supplies it to the CPU and the like.

The functional unit 220 provides a function corresponding to the type of the plant 200. When the plant 200 is, for example, a water purification system, the functional unit 220 is a raw water tank, a pump, a filtration device, a water purification tank, and the like. In addition to the control unit 210, each function unit 220 may be configured to include its own control unit.

AC power is supplied to each functional unit 220 from the AC power supply 250 via the switch element 20. When the operator of the plant 200 opens the switch element 20 for maintenance of the plant 200, for example, the power supply to each functional unit 220 is cut off. Therefore, the switch element 20 is also a main control switch related to the main control of the plant 200. The changeover device 100 may be configured to further include other main control switches and sub-control switches that are not related to the main control of the plant 200. The sub-control switch not related to the main control of the plant 200 is, for example, an on / off switch of a space heater that maintains the temperature in the switchboard at a predetermined temperature or higher. The cover member 110 may be mounted only on the switch elements 10 and 20 related to the main control of the plant 200, for example, or may be mounted on all the switch elements including the sub control switch.

Next, the switching device 100 according to the present embodiment will be described with reference to FIG.

The switching device 100 includes a rail member 130 fixed to the fixed wall W and extending in a substantially horizontal direction, a plurality of switch elements 10 and 20 attached to the rail member 130, and a cover member 110 covering the switch elements 10 and 20. ing. In the present specification, claims, abstracts and drawings, the positive direction of the Y-axis in FIG. 2 is the upward direction, and the negative direction of the Y-axis is the downward direction. Further, the positive direction of the Z axis is the front direction, and the negative direction of the Z axis is the rear direction. Further, the direction along the X axis is the left-right direction. In FIG. 1, only the switch element 10 and the cover member 110 covering the switch element 10 are shown in consideration of the visibility of each member, but in reality, the right side of the switch element 10 (the positive direction side of the X-axis). A switch element 20 and a cover member 110 covering the switch element 20 are further arranged.

As shown in FIG. 3, the switch element 10 is a toggle switch for operating the plant 200 by being attached to a switchboard or a control panel. The mounting holes 10c provided at two locations facing each other with respect to the operation unit 10a, the terminals 10d arranged adjacent to the mounting holes 10c and connecting the wiring from the control unit 210, each functional unit 220, etc., and the housing unit. It is provided on the bottom surface of the 10b, and is provided with a fitting recess 10e for fixing the switch element 10 to the rail member 130 by fitting the upper rail 133 and the lower rail 135 of the rail member 130.

The wiring can be mechanically and electrically connected to the terminal 10d by fastening the terminal 10d with the uncovered portion of the tip of the wiring sandwiched between the head of the screw and the terminal block. In the present embodiment, the region of the terminal 10d is not covered with anything other than the cover member 110, and the wiring is easily attached and detached. The connection of the wiring to the terminal 10d is not limited to screw fastening, and other means such as caulking and soldering may be used.

As the rail member 130, for example, a so-called DIN rail having a vertical width of 35 mm conforming to the IEC60715: 1981 (JISC2812: 1998) standard can be used. More specifically, it has a width of 35 mm, a height of 7.5 mm, and is made of aluminum such as "TH35-7.5AL". The rail member 130 is a metal member such as aluminum or iron that is generally used when mounting a PLC (Programmable Logic Controller), a sensor controller, a relay, a timer, a counter, or the like on a control panel. By using such a general-purpose product, the switch elements 10, 20 and PLC can be easily attached and detached, and the man-hours required for the construction and maintenance of the plant 200 can be reduced.

As shown in FIGS. 4A and 4B, the rail member 130 is connected to the substrate portion 131 extending in the left-right direction (X-axis direction and substantially horizontal direction) and the upper end portion of the substrate portion 131, and is connected to the front (Z-axis forward direction). ), And a lower rail 135 that is connected to the lower end of the substrate portion 131 and projects forward (in the positive direction of the Z axis). The upper rail 133 includes a vertical wall 133b extending forward from the upper end portion of the substrate portion 131, and a rail portion 133a extending further upward from the front end portion of the vertical wall 133b. Similarly, the lower rail 135 includes a vertical wall 135b extending forward from the lower end portion of the substrate portion 131, and a rail portion 135a extending further downward from the front end portion of the vertical wall 135b.

A reinforcing protrusion 133c that slightly protrudes upward from the vertical wall 133b is provided at the upper end of the substrate 131. Even if a large load is applied to the rail portion 133a of the upper rail 133, the reinforcing protrusion 133c can prevent the vertical wall 133b from being elastically deformed with respect to the substrate portion 131. The role of the reinforcing protrusion 135c in the lower rail 135 is also the same.

In the switching device 100 shown in FIG. 1, the substrate portion 131 is oriented in a substantially horizontal direction and attached to the fixed wall W. The fixed wall W can be, for example, a housing extending in the vertical direction in the switchboard or control panel of the plant 200. The fixed wall W can also be a partition wall or the like of a building in which the plant 200 is arranged.

The substrate portion 131 is provided with a mounting hole 131a having an elongated hole shape that is long in the left-right direction (X-axis direction). As shown in FIGS. 2 and 4A, a plurality of mounting holes 131a are arranged side by side at predetermined intervals in the left-right direction. Using the mounting holes 131a, the rail member 130 can be fixed to the fixing wall W by, for example, screw fixing.

As shown in FIGS. 2 and 5A to 5D, the cover member 110 includes a front plate 111 that covers the switch elements 10 and 20 from the front, a side plate 113 that covers the switch elements 10 and 20 from the side, and a front plate 111. A top plate 115 that is connected to the upper end of the side plate 113 and covers the switch elements 10 and 20 from above, and a bottom plate 117 that is connected to the lower ends of the front plate 111 and the side plate 113 and covers the switch elements 10 and 20 from below are provided.

The rear portions of the top plate 115 and the bottom plate 117 are provided with openings 115a and 117a through which wirings connecting the switch elements 10 and 20 and the control unit 210 and each functional unit 220 are passed.

As shown in FIG. 5D, the side plate 113 is provided with a recess 113a that is recessed from the rear surface toward the front. Further, an insertion groove 113b (engagement portion) extending upward is formed at the upper end portion of the recess 113a at the rear portion of the side plate 113. When the cover member 110 is attached to the rail member 130, the upper rail 133 of the rail member 130 is inserted into the insertion groove 113b from below.

As shown in FIG. 5D, an R surface 113d is formed on the leading edge and the trailing edge at the upper end of the insertion groove 113b. It is desirable that the radius of the R surface 113d is sufficiently small with respect to the width in the front-rear direction (Z-axis direction) of the insertion groove 113b (since the radius of the R surface 113d is small, the shape of the R surface is not shown). The R surface 113d may be provided on only one of the leading edge and the trailing edge at the upper end of the insertion groove 113b. Further, an R surface 113e is formed on the ridge portion at the lower end of the rear end portion of the insertion groove 113b. By forming the R surface 113e, from the state where the cover member 110 is started to be attached to the rail member 130 as shown in FIG. 6A, the state where the cover member 110 is completely attached to the rail member 130 as shown in FIG. 6B. The rail portion 133a of the upper rail 133 is inserted into the insertion groove 113b without being caught by the R surface 113e of the ridge portion. A chamfer may be formed instead of the R surface 113e. Further, when the mounting is completed as shown in FIG. 6B, a slight gap is provided between the insertion groove 113b and the rail portion 133a in the front-rear direction and the vertical direction for smooth attachment / detachment.

When the cover member 110 has been attached to the rail member 130 (see FIG. 6B), the lower rail 135 of the rail member 130 is in contact with the front end surface 113c of the recess 113a. In the present embodiment, since the center of gravity of the cover member 110 is located in front of and below the insertion groove 113b in the side view, a rotational moment around the rail portion 133a of the upper rail 133 acts on the cover member 110 due to its own weight. do. However, since the lower rail 135 abuts on the front end surface 113c of the recess 113a to support the cover member 110 in the direction of canceling the above-mentioned rotational moment, the cover member 110 is provided at two points, the upper rail 133 and the lower rail 135. Stable support. In this way, the cover member 110 is stably fixed to the rail member 130 by one insertion portion (insertion groove 113b) and one contact portion (front end surface 113c), so that the cover member 110 can be attached and detached. It is easy and the maintainability of the plant 200 is improved.

In the present embodiment, the insertion groove 113b extends upward from the upper end portion of the recess 113a. Further, the front end surface of the insertion groove 113b is provided so as to be located on the same plane as the front end surface 113c of the recess 113a. As a result, the upper rail 133 can be smoothly inserted into the insertion groove 113b along the front end surface 113c of the recess 113a. Further, the posture of the front plate 111 of the cover member 110 in the side view can be maintained in a state parallel to the substrate portion 131 of the rail member 130.

In the present embodiment, the rail member 130 is fixed to the fixing wall W so as to extend in a substantially horizontal direction along the X axis. The substantially horizontal direction referred to here is not required to be strictly horizontal, and may be tilted with respect to the horizontal direction as long as the cover member 110 can be stably fixed to the rail member 130.

In the present embodiment, the cover member 110 is an acrylic resin member. This makes it easier for the driver to visually recognize the internal switch elements 10 and 20 through the cover member 110. Further, since the acrylic resin is an electrically insulating material, when the cover member 110 is attached to the rail member 130, even if the cover member 110 comes into contact with the terminals 10d of the switch elements 10 and 20, the circuit is short-circuited. There is no.

The cover member 110 is not limited to the acrylic resin, and may be formed by using various other synthetic resin materials such as polycarbonate, polyethylene terephthalate, polyethylene, and polypropylene, which are electrically insulating materials. Further, instead of forming the cover member 110 with an electrically insulating material such as acrylic resin, the surface of the cover member 110 formed of an electrically conductive material such as metal is coated with an electrically insulating material (electrically insulating treatment). May be good.

As described above, the present embodiment is a switching device 100 for switching the operation of the plant 200, the rail member 130 fixed to the fixed wall W and extending in a substantially horizontal direction, and a plurality of rail members 130 attached to the rail member 130. The switch elements 10 and 20 and the cover member 110 that covers at least a part of the switch elements of the plurality of switch elements 10 and 20 are provided, and the rail member 130 includes a substrate portion 131 for fixing to the fixed wall W and a substrate. It has an upper rail 133 that is connected to the upper end of the portion 131 and is provided so as to project forward, and the cover member 110 has a front plate 111 that covers at least a part of the switch elements from the front and the switch elements 10 and 20 on the side. It has a side plate 113 that covers from the side, is formed of an electrically insulating material, or has an electrically insulating treatment on the surface, and an engaging portion with which the upper rail 133 is engaged is provided at the rear portion of the side plate 113. It was configured to be. By adopting such a configuration, when the cover member 110 is attached to the rail member 130, even if the cover member 110 comes into contact with the terminals 10d of the switch elements 10 and 20, the circuit is not short-circuited. Further, the cover member 110 can be mounted by engaging the upper rail 133 of the rail member 130 with the engaging portion of the cover member 110, and it is not necessary to fasten the two. Therefore, the cover member 110 can be easily attached and detached, and the maintainability of the plant 200 is improved.

Further, in the present embodiment, the engaging portion is configured to be an insertion groove 113b into which the upper rail 133 is inserted from below. By adopting such a configuration, the cover member 110 can be engaged with the rail member 130 by inserting the upper rail 133 into the insertion groove 113b from below, so that the cover member 110 can be more easily attached and detached, and the plant 200 Improves maintainability.

Further, in the present embodiment, the rail member 130 further includes a lower rail 135 that is connected to the lower end portion of the substrate portion 131 and is provided so as to project forward, and the side plate 113 has a recess 113a that is recessed from the rear surface to the front. The lower rail 135 is configured to come into contact with the front end surface 113c of the recess 113a. By adopting such a configuration, the rotational moment generated by the weight of the cover member 110 can be supported by the lower rail 135, so that the cover member 110 is stably supported by the upper rail 133 and the lower rail 135. can do.

Further, in the present embodiment, the insertion groove 113b extends upward from the upper end portion of the recess 113a, and the front end surface of the insertion groove 113b is configured to be located on the same plane as the front end surface 113c of the recess 113a. By adopting such a configuration, the upper rail 133 can be smoothly guided and inserted into the insertion groove 113b along the front end surface 113c of the recess 113a. Further, the posture of the front plate 111 of the cover member 110 in the side view can be maintained in a state parallel to the substrate portion 131 of the rail member 130.

Further, in the present embodiment, the R surface 113d is provided on the leading edge and the trailing edge at the upper end of the insertion groove 113b. By adopting such a configuration, it is possible to suppress the generation of burrs near the upper end portion of the insertion groove 113b and smoothly insert the rail portion 133a of the upper rail 133 into the insertion groove 113b.

Further, in the present embodiment, the R surface 113e or chamfer is provided on the ridge portion at the lower end of the rear end portion of the insertion groove 113b. By adopting such a configuration, the rail portion 133a of the upper rail 133 can be inserted into the insertion groove 113b without being caught by the ridge portion.

Further, in the present embodiment, a switch attached to a rail member 130 having a substrate portion 131 for fixing to the fixing wall W and an upper rail 133 connected to the upper end portion of the substrate portion 131 and projected forward. A cover member 110 that covers the elements 10 and 20, which has a front plate 111 that covers the switch elements 10 and 20 from the front and a side plate 113 that covers the switch elements 10 and 20 from the side, and is formed of an electrically insulating material. Or, the surface is electrically insulated, and the rear portion of the side plate 113 is configured to be provided with an engaging portion with which the upper rail 133 is engaged. By adopting such a configuration, when the cover member 110 is attached to the rail member 130, even if the cover member 110 comes into contact with the terminals 10d of the switch elements 10 and 20, the circuit is not short-circuited. Further, the cover member 110 can be mounted by engaging the upper rail 133 of the rail member 130 with the engaging portion of the cover member 110, and it is not necessary to fasten the two. Therefore, the cover member 110 can be easily attached and detached, and the maintainability of the plant 200 is improved.

Although the present disclosure has been described based on the drawings and examples, it should be noted that those skilled in the art can easily make various modifications and modifications based on the present disclosure. Therefore, it should be noted that these modifications and modifications are included in the scope of the present invention. For example, the functions included in each component can be rearranged so as not to be logically inconsistent, and a plurality of components can be combined or divided into one. It should be understood that these are also included in the scope of the present invention.

For example, in the present embodiment, the cover member 110 is configured to have an insertion groove 113b as an engaging portion, but the present embodiment is not limited to this embodiment. As the engaging portion provided on the cover member 110, for example, a configuration having an engaging protrusion that undercuts and engages with the claw portion provided on the upper rail 133 may be adopted.

Further, in the present embodiment, the cover member 110 is configured to be supported at two points by the upper rail 133 and the lower rail 135, but the present embodiment is not limited to this embodiment. The cover member 110 may be configured to be supported only by the upper rail 133 at the engaging portion, or may be configured without the lower rail 135. Further, the cover member 110 may be provided with a further engaging portion with which the lower rail 135 is engaged.

Further, in the present embodiment, the insertion groove 113b extends upward from the upper end portion of the recess 113a, and the front end surface of the insertion groove 113b is configured to be located on the same plane as the front end surface 113c of the recess 113a. , Not limited to this aspect. The front end surface of the insertion groove 113b and the front end surface 113c of the recess 113a do not have to be on the same plane.

Further, in the present embodiment, the R surface 113d is provided on at least one of the leading edge and the trailing edge at the upper end of the insertion groove 113b, but the present embodiment is not limited to this embodiment. The R surface 113d may not be provided, and post-processing may be performed as necessary so that burrs and the like do not occur in the insertion groove 113b.

Further, in the present embodiment, the ridge portion at the lower end of the rear end portion of the insertion groove 113b is configured to be provided with an R surface 113e or a chamfer, but the present embodiment is not limited to this embodiment. The R surface 113e and chamfering may not be provided on the ridge portion, and post-processing may be performed as necessary so that burrs and the like do not occur on the ridge portion.

Further, in the present embodiment, a toggle switch is used for the switch elements 10 and 20, but the present invention is not limited to this embodiment. The switch elements 10 and 20 may be other types of switches such as slide switches, rotary switches, and push switches.

In the present embodiment, the case where a plurality of switch elements 10 and 20 are attached to one rail member 130 has been described. For example, two or more rail members 130 are arranged above and below the same fixed wall W, and each rail member. The switch elements 10 and 20 may be arranged at 130. The present disclosure is effective when a plurality of switch elements 10 and 20 are arranged close to each other in the vertical direction or the horizontal direction.

According to the present disclosure, it is possible to propose a switching device 100 and a cover member 110 capable of safely and easily attaching and detaching the cover member 110.

10, 20 Switch element 10a Operation part 10b Housing part 10c Mounting hole 10d Terminal 10e Fitting recess 100 Switching device 110 Cover member 111 Front plate 113 Side plate 113a Recess 113b Insertion groove 113c Front end surface 113d R surface 113e R surface 115 Top plate 115a Opening 117 Bottom plate 130 Rail member 131 Board part 131a Mounting hole 133 Upper rail 133a Rail part 133b Vertical wall 133c Reinforcing protrusion 135 Lower rail 135a Rail part 135b Vertical wall 135c Reinforcing protrusion 200 Plant 210 Control part 220 Power supply W fixed wall

Claims (7)

It is a switching device that switches the operation of the plant.
A rail member fixed to a fixed wall and extending substantially horizontally, a plurality of switch elements attached to the rail member, and a cover member covering at least a part of the switch elements of the plurality of switch elements are provided.
The rail member has a substrate portion for fixing to the fixed wall, and an upper rail which is connected to the upper end portion of the substrate portion and is provided so as to project forward.
The cover member has a front plate that covers at least a part of the switch elements from the front and a side plate that covers the switch elements from the side, and is formed of an electrically insulating material or has an electrically insulating treatment on the surface. Has been applied,
A switching device characterized in that an engaging portion with which the upper rail is engaged is provided at the rear portion of the side plate. The switching device according to claim 1, wherein the engaging portion is an insertion groove into which the upper rail is inserted from below. The rail member further includes a lower rail which is connected to the lower end portion of the substrate portion and is provided so as to project forward.
The switching device according to claim 2, wherein the side plate has a recess recessed from the rear surface toward the front, and the lower rail abuts on the front end surface of the recess. The third aspect of the present invention, wherein the insertion groove extends upward from the upper end portion of the recess and is provided so that the front end surface of the insertion groove is located on the same plane as the front end surface of the recess. Switching device. The switching device according to any one of claims 2 to 4, wherein an R surface is provided on at least one of the leading edge and the trailing edge at the upper end of the insertion groove. The switching device according to any one of claims 2 to 5, wherein an R surface or a chamfer is provided on the ridge portion at the lower end of the rear end portion of the insertion groove. A cover member that covers a switch element attached to a rail member having a board portion for fixing to a fixed wall and an upper rail that is connected to the upper end portion of the board portion and is provided so as to project forward.
It has a front plate that covers the switch element from the front and a side plate that covers the switch element from the side, and is formed of an electrically insulating material or has an electrically insulating treatment on its surface.
A cover member characterized in that an engaging portion with which the upper rail is engaged is provided at the rear portion of the side plate.

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