JP2001086577A - Control terminal for remote supervisory control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent occurrence of an inactivated switch and an improper operating sense by restricting a handle from being pushed in more than needed. SOLUTION: A push-in prevention rib 11 that is a restriction means is formed at both ends of a handle 43a at a rear side in a lengthwise direction. When the handle 43a is pushed in, a tip of the push-in prevention rib 11 is pressed into contact with a printed circuit board to restrict the handle 43a from being pushed in more than needed. Thus, a damaged switch SW and plastic deformation of a hinge section are prevented, occurrence of the inactivated switch SW and an improper operating sense can be prevented as a result.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote processing apparatus having a terminal connected to a transmission processing apparatus by a time division multiple access system and a switch for generating operation data for operating a terminal connected to a load. The present invention relates to an operation terminal of a monitoring control system.

[0002]

2. Description of the Related Art Conventionally, a remote monitoring and control system in which a plurality of operation terminals and control terminals are connected to a transmission processing device via a two-wire signal line in a time division multiple access system has been considered. ing. An address is set for each of the operation terminal and the control terminal, and the transmission processing device individually recognizes each operation terminal and each control terminal by the address. The operation terminal includes a switch, and transmits an interrupt signal generated by operating the switch to the transmission processing device. Upon receiving the interrupt signal, the transmission processing device searches for the operation terminal device requesting the interrupt,
Further, the control data is transmitted to the control terminal in which the correspondence between the retrieved operation terminal and the address is set in advance. The control terminal receiving the control data controls the connected load in accordance with the operation of the switch.

More specifically, the remote monitoring control system has a configuration shown in FIG. 12, for example. A plurality of operation terminals 82 for monitoring the operation state of the switch SW and a plurality of control terminals 83 for controlling the load L are connected to the transmission processing device 81 via a two-wire signal line Ls. You. An individual address is set for each of the operation terminal 82 and the control terminal 83, and the transmission processing device 81 uses the addresses to operate the transmission terminal 81 and the control terminal 83.
Are individually recognized.

[0004] The transmission processing device 81 transmits a signal to the signal line Ls.
The transmission signal V having a format as shown in FIGS.
Send s. That is, the transmission signal Vs includes a start pulse ST indicating the start of signal transmission, a mode data signal MD indicating a signal mode, an operation terminal 82 and a control terminal 83.
, An address data signal AD for transmitting address data for calling each of them separately, a control data signal CD for transmitting control data for controlling the load L, a checksum data signal CS for detecting a transmission error, an operation terminal 82, A multipole (± 24) consisting of a signal return period WT which is a time slot for receiving a return data signal from the control terminal 83
V) is a time division multiplexed signal, and data is transmitted by pulse width modulation.

In each operation terminal 82 and each control terminal 83, if the address data transmitted by the transmission signal Vs received via the signal line Ls matches the address data set in advance, the transmission signal Vs And the return data as a current mode signal (a signal transmitted by short-circuiting the signal line Ls via a suitable low impedance) in synchronization with the signal return period WT of the transmission signal Vs. I will send it back.

Further, the transmission processing device 81 is provided with a dummy signal transmitting means and an interrupt signal processing means. The dummy signal transmitting means always transmits a dummy transmission signal in which the mode data signal MD is set to the dummy mode. Further, the interrupt signal processing means, when receiving an interrupt signal Vi as shown in FIG.
The operation terminal 82 that generated i is searched, and the address data set in the operation terminal 82 is returned as reply data. That is, the dummy transmission signal is always transmitted to the signal line Ls by the dummy signal transmission means, and the interrupt signal Vi generated from the operation terminal 82 in accordance with the operation of the switch SW is synchronized with the start pulse signal ST of the dummy transmission signal. Then, a transmission signal Vs in which the mode data signal MD is set to the address confirmation mode is transmitted from the transmission processing device 81 to the signal line Ls by the interrupt processing means. Each operation terminal 82 sets an interrupt flag for requesting an interrupt when an interrupt signal Vi is generated, and sets the operation terminal 82 to which the interrupt flag is set.
When the mode data signal MD receives the transmission signal Vs in the address confirmation mode, the address data set in the operation terminal 82 is returned as return data in synchronization with the signal return period WT of the transmission signal Vs. In this way, the transmission processing device 81 can acquire the address of the operation terminal device 82 that has generated the interrupt signal Vi.

In the transmission processing device 81, the interrupt signal Vi
When the address of the operation terminal 82 that has generated
In addition to generating control data to be transmitted to the control terminal 83 connected to the load L in which the correspondence with the switch SW is set in advance, a transmission signal Vs including the control data is transmitted to the signal line Ls, and the corresponding control signal is transmitted. The load L is controlled by transmitting control data to the terminal 83 for use.

[0008] In the operation terminal 82 and the control terminal 83, the transmission signal Vs transmitted through the signal line Ls, respectively.
Is stabilized by full-wave rectification to obtain a power supply for operating the internal circuit. A power supply is separately provided for the load L connected to the control terminal 83.

Next, the main part of the operation terminal device 82 will be described with reference to FIG.

The operation terminal 82 includes a switch SW composed of a push button switch, a terminal processing unit (not shown) for generating operation data (interrupt signal Vi) by operating the switch SW, and a switch SW and a terminal processing unit. The printed circuit board 60 to be mounted and the printed circuit board 60
0a (see FIG. 3) and a housing 40 (see FIG. 3) comprising a cover 40b having a protrusion 44 projecting forward.
And a handle 43a formed integrally with the protruding portion 44 of the cover 40b and pressing the operating portion SWa of the switch SW to turn on the switch SW.

The handle 43a is provided with an operating portion S of the switch SW.
An operating portion of the switch SW is provided substantially at the center on the rear side of the handle 43a, with the hinge portion 43c (see FIG. 3) provided at one end substantially as a fulcrum. Operation rib 10 abutting on tip of SWa
Is provided. Normally, the handle 43a is disposed substantially in opposition and parallel to the printed circuit board 60.
When the handle 43a is pushed backward, the operating rib 10 pushes the operating portion SWa of the switch SW to turn on the switch SW (Japanese Patent Laid-Open No. Hei 8-115632,
See JP-A-7-262871 and JP-A-5-23364).

[0012]

However, in the above-mentioned conventional example, when the handle 43a is pushed deeply, an excessive stress is applied to the operation portion SWa of the switch SW, so that the switch SW is damaged and cannot operate. The hinge portion 43c is plastically deformed and the handle 43
a and the operating rib 10 are always in a tilted state, and there is a problem that a poor operation feeling occurs. For example, when the end of the handle 43a is pushed,
When the operation rib 10 is tilted, the operation portion SWa of the switch SW is pressed in a state where the operation rib 10 is tilted, and the operation feeling is different from that when the center portion of the handle 43a is pressed.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problem, and it is an operation terminal of a remote monitoring and control system that restricts pushing of a handle more than necessary and prevents occurrence of an inferior operation feeling and an inoperative switch. Provide a container.

[0014]

In order to achieve the above-mentioned object, according to the present invention, a plurality of terminals each having a different address are time-divided into a transmission processing device via a two-wire signal line. The connection is performed by the multiple access method, and the transmission processing device individually accesses the terminal by transmitting a transmission signal including address data to the signal line, and transmits the transmission signal including the address data from the terminal during the signal return period set in synchronization with the transmission signal. Upon receiving the operation data, the terminal generates control data based on the operation data, and transmits the control data to another terminal in which the correspondence between the terminal and the terminal that generated the operation data is set in advance, and transmits the control data to the terminal. A switch composed of a push button switch, a terminal processing unit for generating operation data by operating the switch, and a switch and the like. A housing in which the terminal processing unit is housed and a front surface of the housing substantially opposed to the operation unit of the switch are formed so as to be swingable in the front-rear direction with the hinge as a fulcrum, and the operation unit of the switch is pressed to turn on / off the switch. And a restricting means for restricting the handle from being pushed more than necessary into the housing, and the restricting means restricts the handle from being pushed more than necessary. By preventing plastic deformation of the hinge portion, it is possible to prevent non-operation of the switch and poor operation feeling.

According to a second aspect of the present invention, in the first aspect, the regulating means is provided integrally with the handle, and the number of parts is reduced by integrally forming the regulating means and the handle. Can be.

According to a third aspect of the present invention, in the second aspect of the present invention, when the handle is pushed at least at an end portion, the regulating means comes into contact with a printed circuit board or a housing on which the switch and the terminal processing section are mounted, and It is characterized by comprising a rib that regulates the pushing of the handle.Because the rib contacts the printed circuit board or the housing, the pushing of the handle more than necessary is regulated, thereby preventing the breakage of the switch and the plastic deformation of the hinge part. In addition, it is possible to prevent the non-operation of the switch and the occurrence of a poor operation feeling, and it is possible to easily form the regulating means.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the rib is provided on a peripheral portion on the back side of the handle, and the tip portion is disposed substantially in the vicinity of the surface of the printed circuit board. As a feature, even when the handle end is pushed in, the ribs come into contact with the printed circuit board, so that the pushing of the handle more than necessary is regulated, preventing breakage of the switch and plastic deformation of the hinge part, It is possible to prevent non-operation of the switch and poor operation feeling.

According to a fifth aspect of the present invention, in the third aspect of the present invention, the handle is disposed in an opening formed in a front surface of the housing such that a rear side of the handle is located inside the housing. The rib is provided so as to protrude outward at a peripheral portion on the back side of the handle, and is disposed substantially opposite to an inner side surface of the housing adjacent to the opening, and when the handle is pushed in, the rib is opened. Pushing the handle more than necessary by abutting the inner surface of the housing adjacent to the switch prevents damage to the switch and plastic deformation of the hinge part, resulting in non-operation of the switch and poor operation feeling. Can be prevented.

According to a sixth aspect of the present invention, in the second aspect of the present invention, the regulating means comprises a rib having a recess protrudingly provided on the back side of the handle and into which the operating portion of the switch is press-fitted. Pressing the switch's operating part into the recess makes it possible to restrict the handle from being pushed more than necessary, and the handle is fixed to the switch's operating part. Operation feeling can be obtained.

[0020]

(Embodiment 1) Hereinafter, Embodiment 1 of the present invention will be described in detail with reference to the drawings. However, since the basic configuration of this embodiment is common to that of the conventional example, common portions are denoted by the same reference numerals and description thereof is omitted.

The configuration of the internal circuit of the operation terminal 20 of the present embodiment will be described with reference to FIG. The operation terminal device 20 includes a terminal processing unit 91 formed of a dedicated integrated circuit having a built-in microprocessor. The terminal processing unit 91 is connected to the signal line Ls through the multiplexed signal transmission / reception circuit unit 92. The terminal processing section 91 operates based on the function data and the address data stored in the storage circuit section 93 as a data memory composed of an EEPROM. The address data defines an address unique to the operation terminal 20. The function data is either individual control in which the switches SW and the loads L correspond one-on-one such that the loads L are individually controlled by operating the switches SW, or a plurality of loads L are collectively operated by operating the switches SW. Type control data such as pattern control or group control in which the switch SW and the load L correspond one-to-many to control, or dimming control for dimming the load L, which is an illumination load, and the load L for a fixed time after the switch SW is operated. And the timer data for the type and time of the timer operation for stopping the operation of the load L with a certain delay after the operation of the switch SW. Here, the pattern control means that a plurality of loads L are collectively controlled so as to be in an individually set operation state, and the group control means that a plurality of loads L are collectively controlled in the same state. means. The setting range of the address data and the setting range of the timer data are defined by the type data.

The function data and address data stored in the storage circuit section 93 are transmitted and received by an optical signal transmitting / receiving circuit section 94 including a light receiving element such as a photodiode PD and a light emitting element such as a light emitting diode LD (see FIG. 3). It can be rewritten by a wireless signal from the setting unit 85 (see FIG. 12) or a transmission signal Vs in the setting mode transmitted through the signal line Ls. Operation terminal 20
The power supply of the internal circuit is obtained by performing full-wave rectification and stabilization of the transmission signal Vs on the signal line Ls by the power supply circuit section provided in the multiplex signal transmission / reception circuit section 92.

The setter 85 transmits a wireless signal by infrared rays, and sets, checks, and corrects function data and address data stored in the storage circuit section 93. That is, when the optical signal transmission / reception circuit unit 94 as a wireless transmission unit receives a wireless signal from the setting unit 85, the terminal processing unit 91 operates data in the storage circuit unit 93 in accordance with the operation requested by the wireless signal. When data setting is requested, the data in the storage circuit unit 93 is rewritten according to the contents of the wireless signal, and a reception confirmation signal indicating that the wireless signal has been normally received is sent to the setting unit 85 through the optical signal transmission / reception circuit unit 94. return. When data confirmation is requested, the data in the storage circuit unit 93 is read and transmitted to the setting unit 85. When data correction is requested, the required data is written in the same manner as in the setting, and the written data is written. It is returned to the setting device 85.

The operation terminal device 20 includes a switch input circuit unit 95 having a switch SW, and a red light-emitting ON indicator light including a light-emitting diode that is turned on and off in accordance with the control state of the load L accompanying the operation of the switch SW. The display circuit section 96 includes an LD1 and a green light-emitting off indicator light LD2. The on indicator light LD1 is turned on when the corresponding load L is operating, and the off indicator light LD2 is turned on when the load L is not operated. The terminal processing section 91 is also connected to an oscillation circuit section 97 for generating a clock signal and a reset circuit section 98 for resetting at the start of operation.

Next, the structure of the operation terminal 20 will be described.
This will be described with reference to FIG.

The operation terminal device 20 has a printed circuit board 60 on which the above-described circuit is mounted, a housing 40 in which the printed circuit board 60 is housed, and a housing 40 including a body 40a and a cover 40b, and protrudingly provided in front of the cover 40b. A decorative cover 50 attached to the front surface of the protrusion 44;
And a name card 52 attached to a front surface of a handle 43a integrally formed on the protrusion 44 of the cover 40b and corresponding to each switch SW. .

On the surface of the printed circuit board 60, four switches SW composed of tact switches, a light emitting diode LD and a photodiode PD constituting a signal input / output unit of the optical signal transmission / reception circuit unit 94, and each switch SW Correspondingly, an on-indicator light LD1 and an off-indicator light LD2 of the display circuit section 96, which are composed of light emitting diodes, are mounted. Although not shown, circuit components constituting the terminal processing unit 91 and the like are mounted on the back surface.

The body 40a is formed in a substantially box shape with a front opening made of a synthetic resin, and a pair of terminals 70 for connecting the signal lines Ls is mounted on the back surface. The terminal 70 includes a substantially L-shaped terminal plate 70a and a terminal screw 70b screwed to the terminal plate 70a, and is connected to the circuit of the printed circuit board 60 via a lead wire 71.

The cover 40b is formed in a substantially box shape with a back surface opened by a synthetic resin, and a projecting portion 44 projects forward at a substantially central portion on the front side. A hinge 43c and a substantially rectangular handle 43a are formed integrally with the cover 40b on the front surface of the protrusion 44 by a cut groove 43b. The handle 43a is formed so as to be swingable in the front-rear direction with the hinge portion 43a as a fulcrum.
In a state where the housing 40 is assembled by connecting Ob to the plurality of switches SW, the plurality of switches SW mounted on the printed circuit board 60 are disposed substantially opposite to each other. A transmitting / receiving window 45 corresponding to the light emitting diode LD and the photodiode PD is formed at an upper end of the protruding portion 44. Further, above the respective handles 43a, an on indicator light LD1 and an off indicator light LD2 for display are provided. Are formed.

The housing 40 formed by assembling the body 40a and the cover 40b has a three-module size (JI) of a large-sized continuous wiring device standardized by Japanese Industrial Standards (JIS).
SC 8304). Cover 40b
Is an assembling claw 41a vertically suspended from four places at both end edges.
Are resiliently engaged with assembly holes 42 formed at corresponding locations of the body 40a and are integrally combined with the body 40a.

Also, two pairs of locking claws 41b are projected from both sides of the cover 40b, respectively.
A mounting frame (not shown) for a large-sized continuous wiring device (not shown) used when burying a ready-made wiring device on a wall surface by using
C 8375).

The decorative cover 50 is formed on a substantially rectangular plate of synthetic resin, and has an opening 50 through which the handle 43a is inserted.
are arranged in four rows in the longitudinal direction, and through holes 50b and 50c communicating with the transmission / reception window 45 and the display window 46 are provided above each opening 50a. Then, the locking pieces 53 suspended from four places on the back of the decorative cover 50 are
The decorative cover 50 is detachably attached to the front surface of the cover 40b by elastically engaging with the protrusions 47 provided on the side surfaces of the protrusions 44 of the cover 40b.

The nameplate 51 is made of a transparent material such as a membrane sheet, for example, and has concave portions 51a for holding the name cards 52 corresponding to the handles 43a between the handles 43a in the longitudinal direction.

Next, a characteristic part of the present embodiment will be described in detail.

As shown in FIGS. 4 (c) to 4 (f), a substantially central portion on the rear side of the handle 43a provided on the cover 40b has
An operating rib 10 is protruded, and a push-in preventing rib 11 serving as a restricting means is formed at both longitudinal ends of the handle 43a. The push-in prevention rib 11 projects substantially vertically from the back of the handle 43a to near the edge of the cover 40b, and is reinforced by a substantially triangular reinforcing rib 11a integrally formed with the handle 43a (FIGS. 4 (e) and (e). f)).

When the printed circuit board 60 is housed in the cover 40b shown in FIG. 4, and the housing 40 is assembled by engaging with the body 40a, the operation rib 10 of the handle 43a is printed as shown in FIG. The switch SW mounted on the substrate 60 comes into contact with the tip of the operation unit SWa.
At this time, the handle 43a is substantially parallel to the printed circuit board 60, and the tip of the push-in preventing rib 11 is
In the vicinity of 0, they are arranged substantially facing each other. The distance between the tip of the rib 11 for preventing the press-down and the printed circuit board 60 is equal to or longer than the stroke at which the switch SW can be turned on, so that the operating rib 10 does not apply too much stress to the operating portion SWa of the switch SW. I have to.

In the configuration of the present embodiment, as shown in FIG. 5A, for example, when the handle 43a is pushed in during the operation, the operating portion SWa of the switch SW is turned on.
The switch SW is turned on by being pressed by the operation rib 10 of FIG. And when pushed further in, FIG.
As shown in (b), the distal end of the rib 11 for preventing the pushing comes into contact with the printed circuit board 60, so that the handle 43 is pressed.
The switch S is controlled because the pressing of
The switch SW can be prevented from being damaged without applying excessive stress to the W, thereby preventing the switch SW from malfunctioning. In addition, the plastic deformation of the hinge portion 43c due to excessive pressing can be suppressed, resulting in poor operation feeling. Occurrence can be prevented. Further, since the push-in preventing ribs 11 are formed at both ends in the longitudinal direction of the handle 43a, the same effect can be obtained by pushing not only the center of the handle 43a but also the end.

Further, the rib 11 for preventing the pushing as a regulating means.
Can be formed integrally with the handle 43a, and the number of parts can be reduced. (Embodiment 2) Since the basic configuration in this embodiment is common to Embodiment 1, the same reference numerals are given to the common parts, and the description thereof will be omitted, and only the characteristic parts of this embodiment will be described in detail. I do.

In this embodiment, as shown in FIG. 7, the handle 43a is provided with a notch 4 on the front surface of the projection 44 of the cover 40b.
A cover 40 is provided on the back side in the opening formed by 3b.
b, the push-prevention ribs 12 are provided at both ends in the longitudinal direction on the rear side of the handle 43a. It is characterized in that it is disposed substantially opposite to the inner surface of the protruding portion 44 adjacent to the cut groove 43b.

When the printed circuit board 60 is housed in the cover 40b shown in FIG. 7, and the housing 40 is assembled by engaging with the body 40a, the operation rib 10 of the handle 43a is printed as shown in FIG. The switch SW mounted on the substrate 60 comes into contact with the tip of the operation unit SWa.

In the structure of the present embodiment, as shown in FIG. 8A, for example, when the end of the handle 43a is pushed in during operation, the operating portion SWa of the switch SW is pressed by the operating rib 10 of the handle 43a. Then, the switch SW is turned on. At this time, the handle 43a is
c, the handle 43a is tilted by moving the pushed side of the handle 43a backward and the end opposite to the pushed side forward, so that the handle 43a is tilted. As shown in b), the push-in preventing rib 12 provided at the end opposite to the pushed-in side
However, the contact with the inner surface of the protruding portion 44 adjacent to the cut groove 43b restricts the handle 43a from being pushed more than necessary. As a result, the switch SW is prevented from being damaged without excessive stress being applied to the switch SW, and the switch SW is prevented from being damaged.
Can be prevented from occurring, and the plastic deformation of the hinge portion 43c due to excessive pressing can be suppressed, thereby preventing the occurrence of poor operation feeling.

Further, a push-in preventing rib 1 as a regulating means.
2 can be formed integrally with the handle 43a, and the number of parts can be reduced. (Embodiment 3) Since the basic configuration in this embodiment is common to Embodiment 1, the same parts are denoted by the same reference numerals and the description thereof will be omitted, and only the characteristic parts of this embodiment will be described in detail. I do.

In this embodiment, as shown in FIG. 10, the operating ribs 10 are provided at substantially the center of the rear side of each handle 43a.
In addition, instead of the push-in prevention rib 11, a substantially cylindrical push-in prevention rib 13 as a regulating means is formed substantially perpendicular to the handle 43a. Further, two sets of mutually opposing projections 13a are provided on the inner surface of the push-in preventing rib 13 on the handle 43a side.

When the printed circuit board 60 is housed in the cover 40b shown in FIG. 10, and the housing 40 is assembled by engaging with the body 40a, as shown in FIG. Operation unit SWa
To the push-in preventing rib 13 provided on the handle 43a.
The tip of the protrusion 1 of the rib 13 for preventing indentation
Press in until it contacts 3a.

In the configuration of the present embodiment, when the handle 43a is pushed in during operation, the operating portion SWa of the switch SW is pressed by the push-in preventing rib 13 of the handle 43a, and the switch SW is turned on. Since the handle 43a sinks only by the stroke of the operation portion SWa of the switch SW, it is possible to restrict pushing more than necessary. Further, for example, as shown in FIG. 11, even when the end of the handle 43a is pushed in,
Since the operating portion SWa of the switch SW is press-fitted and fixed in the recess of the push-in prevention rib 13, the handle 43
The switch SW can be turned on without a tilting. That is, even if any part of the handle 43a is pushed, the same operation feeling can be obtained.

Further, a push-in preventing rib 1 as a restricting means is provided.
3 can be formed integrally with the handle 43a, and the number of parts can be reduced.

[0047]

According to the first aspect of the present invention, a plurality of terminals each having a different address are connected to a transmission processing device via a two-wire signal line by a time division multiple access method.
The terminal device is individually accessed by transmitting a transmission signal including address data to the signal line, and when operation data from the terminal device is received during a signal return period set in synchronization with the transmission signal, control data is transmitted based on the operation data. A remote monitoring and control system that generates control data, transmits control data to another terminal in which the correspondence between the terminal and the address that has generated the operation data is set in advance, and controls a load connected to the terminal. A switch comprising a push button switch, a terminal processing unit for generating operation data by operating the switch, a housing in which the switch and the terminal processing unit are stored, and a hinge on a front surface of the housing substantially opposed to the operation unit of the switch. Hand that is formed to be swingable in the front-rear direction with the part as a fulcrum, and that turns on / off the switch by pressing the operation part of the switch And a restricting means for restricting the handle from being pushed more than necessary into the housing, so that the restricting means restricts pushing of the handle more than necessary, so that the switch is damaged and the hinge is plastically deformed. Thus, there is an effect that the non-operation of the switch and the occurrence of a poor operation feeling can be prevented.

According to the second aspect of the present invention, since the regulating means is provided integrally with the handle, there is an effect that the number of parts can be reduced.

According to a third aspect of the present invention, when the handle is pushed at least at the end portion, the restricting means comprises a printed circuit board on which the switch and the terminal processing section are mounted or a rib abutting on the housing. Or, since the pushing of the handle more than necessary is restricted by abutting on the housing, breakage of the switch and plastic deformation of the hinge portion are prevented, so that non-operation of the switch and poor operation feeling can be prevented, There is an effect that the regulating means can be easily formed.

According to a fourth aspect of the present invention, since the rib is provided on the peripheral portion on the back side of the handle and the distal end portion is disposed substantially opposite to the vicinity of the surface of the printed circuit board, the end of the handle is pushed in. Even when the ribs touch the printed circuit board, excessive pushing of the handle is restricted, preventing breakage of the switch and plastic deformation of the hinge part, resulting in non-operation of the switch and poor operation feeling. This has the effect that it can be prevented.

According to a fifth aspect of the present invention, the handle is disposed in the opening formed in the front surface of the housing so that the rear side of the handle is located inside the housing.
The rib is provided to protrude laterally on the rear side peripheral portion of the handle, and is disposed substantially opposite to the inner side surface of the housing adjacent to the opening, so that when the handle is pushed in,
Since the rib is in contact with the inner surface of the housing adjacent to the opening, excessive pushing of the handle is restricted, so that damage to the switch and plastic deformation of the hinge portion are prevented, so that the switch does not operate and the operating feeling is reduced. There is an effect that occurrence of defects can be prevented.

According to a sixth aspect of the present invention, since the restricting means is formed of a rib having a concave portion into which the operating portion of the switch is press-fitted, the operating portion of the switch is press-fitted into the concave portion. As a result, the pushing of the handle more than necessary can be restricted, and since the handle is fixed to the operation part of the switch, the same operation feeling can be obtained even if any part of the handle is pushed. There is.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a main part of a first embodiment.

FIG. 2 is a block diagram showing an internal circuit of the above.

FIG. 3 is an exploded perspective view of the same.

4A and 4B show the cover in the above, wherein FIG.
(B) is a left side view, (c) is a back view, (d) is a right side sectional view, (e) is a lower side sectional view, and (f) is an upper side sectional view.

FIG. 5 is a sectional view of a main part for explaining the operation of the above.

FIG. 6 is a sectional view showing a main part of the second embodiment.

7A and 7B show the cover in the above embodiment, FIG.
(B) is a left side view, (c) is a back view, (d) is a right side sectional view, (e) is a lower side sectional view, and (f) is an upper side sectional view.

FIG. 8 is a cross-sectional view of a main part for describing operation of the above.

FIG. 9 is a cross-sectional view illustrating a main part of a third embodiment.

10A and 10B show a cover in the above, wherein FIG. 10A is a front view, FIG. 10B is a left side view, FIG. 10C is a rear view, FIG. 10D is a right side sectional view, FIG. (F) is an upper side sectional view.

FIG. 11 is a cross-sectional view of a main part for describing operation of the above.

FIG. 12 is a schematic configuration diagram of a remote monitoring control system.

FIG. 13 is an operation explanatory diagram illustrating a transmission signal used in the remote monitoring control system.

FIG. 14 is a sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Operation rib 11 Push prevention rib 40b Cover 43a Handle 43c Hinge part 44 Projection part 60 Printed circuit board SW switch SWa Operation part

Claims (6)

[Claims] A plurality of terminals each having an address are connected to a transmission processing device via a two-wire signal line by a time division multiple access method, and the transmission processing device transmits a transmission signal including address data. The terminal device is individually accessed by transmitting to the signal line, and when operation data from the terminal device is received during a signal return period set in synchronization with the transmission signal, control data is generated based on the operation data, and the operation data is generated. The correspondence between the generated terminal and the address is used in a remote monitoring and control system that transmits control data to another terminal that is set in advance and controls a load connected to the terminal, and a push button switch. A switch, a terminal processing unit that generates operation data by operating the switch, a housing in which the switch and the terminal processing unit are housed, and an operation unit of the switch. A handle is formed on the front surface of the facing housing so as to be swingable in the front-rear direction with a hinge portion as a fulcrum. The handle presses an operation portion of the switch to turn on / off the switch, and the handle is pushed more than necessary into the housing. A terminal for operating a remote monitoring and control system, comprising: a regulation means for regulating a condition. 2. The terminal for operation of a remote monitoring and control system according to claim 1, wherein the restricting means is provided integrally with the handle. 3. The remote control device according to claim 2, wherein the restricting means comprises a switch and a rib abutting on a printed circuit board or a housing on which the terminal and the terminal processing section are mounted when the handle is pushed at least at an end portion. Operation terminal for supervisory control system. 4. The remote monitoring and control system according to claim 3, wherein the rib is provided at a peripheral portion on the back side of the handle, and a tip portion is disposed substantially in opposition to the vicinity of the surface of the printed circuit board. Operation terminal. 5. The handle is disposed in an opening formed in the front surface of the housing so that the rear side of the handle is located inside the housing, and the rib is laterally formed in a peripheral portion on the rear side of the handle. The operation terminal of the remote monitoring and control system according to claim 3, wherein the terminal is provided so as to protrude and is substantially opposed to an inner surface of the housing adjacent to the opening. 6. The operation of the remote monitoring and control system according to claim 2, wherein the restricting means comprises a rib protruding from a rear side of the handle and having a recess into which an operation portion of the switch is press-fitted. Terminal device.