JPH0799714A - Mounting frame of terminal equipment for operation - Google Patents

Abstract

PURPOSE:To facilitate wiring execution by eliminating the need for connection operation for feed wiring among a plurality of terminal equipments for operation juxtaposed at one place. CONSTITUTION:A mounting frame 60 is formed in such a manner that an insulating frame 62 having approximately the same shape as a base frame 61 is laminated on the front of the base frame 61 having three mounting windows 63 and being made of a metal and holding springs 70a are fixed onto side pieces 64 among the adjacent mounting windows 63. Holding springs 70b are fastened onto side pieces 65 on both sides in the mounting frame 60. The holding springs 70a, 70b have holding pieces 73a being brought into contact elastically with the front sides of holding pawls protruded from the side faces of cases 1 and preventing the forward movement of the cases 1 and contacting pieces 73b brought into contact elastically with lead plates exposed onto the side faces of the cases 1. The contacting pieces 73b of the holding springs 70a mounted on the side pieces 64 are connected electrically through bridging pieces 71, and the lead plates of the cases 1 attached to the adjacent mounting windows 63 are electrically connected mutually.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in a remote monitoring control system for monitoring and controlling a load, and is used for mounting an operating terminal equipped with a switch for operating a load on a construction surface. It is about the frame.

[0002]

2. Description of the Related Art Conventionally, a plurality of operation terminals and control terminals are connected to a signal line by a time division multiplex connection method, and operation data generated by operating a switch in an operation terminal equipped with a switch. There is provided a remote monitoring control system in which the control data is created based on the above, and the control data is transmitted to the control terminal device to which the load is connected so that the operating state of the load corresponds to the operation of the switch. .

The remote monitoring control system is constructed, for example, as shown in FIG. That is, the transmission processing device 81 includes a plurality of operation terminals 82 for monitoring the operation state of the switch SW and a plurality of control terminals 8 for controlling the load L.
3 and the like are connected via a two-wire signal line Ls. Individual addresses are set in the operation terminal device 82 and the control terminal device 83, and the transmission processing device 81 uses the addresses to operate the operation terminal device 82 and the control terminal device 83.
Recognize individually.

The transmission processing device 81 is connected to the signal line Ls by
A transmission signal Vs having a format as shown in FIGS. 8A and 8B is transmitted. That is, the transmission signal Vs is a start pulse ST indicating the start of signal transmission, a mode data signal MD indicating the signal mode, and an address data signal for transmitting address data for individually calling the operation terminal 82 and the control terminal 83. A time slot for receiving AD, a control data signal CD for transmitting control data for controlling the load L, a checksum data signal CS for detecting a transmission error, and a return signal from the operation terminal 82 or the control terminal 83. Is a bipolar (± 24 V) time-division multiplexed signal having a signal return period WT, and data is transmitted by pulse width modulation.

In each operation terminal 82 and each control terminal 83, when the address data transmitted by the transmission signal Vs received through the signal line Ls matches the preset address data, the transmission signal Vs The control data is taken in from and the return data is returned as a current mode signal (a signal sent by short-circuiting the signal line Ls via an appropriate low impedance) in synchronization with the signal return period WT of the transmission signal Vs.

Further, the transmission processing device 81 is provided with dummy signal transmitting means and interrupt signal processing means. The dummy signal transmitting means sets the mode data signal MD to the dummy mode and sets each operation terminal 82 and control terminal 83.
A dummy transmission signal having an empty address that is not set as the address data is constantly transmitted. Further, the interrupt signal processing means, when receiving the interrupt signal Vi as shown in FIG. 8C generated in any of the operation terminals 82, after detecting the operation terminal 82 which generated the interrupt signal. , The operation terminal 82 is accessed to return the reply data. That is, the dummy signal transmitting means always sends the dummy signal to the signal line Ls, and the interrupt signal Vi generated from the operation terminal 82 in accordance with the operation of the switch SW is the start pulse signal S of the dummy transmission signal.
When it is detected in synchronism with T, the transmission processing device 81 sends the transmission signal Vs in which the mode data signal MD is in the address confirmation mode by the interrupt processing means. In the address confirmation mode, the operation terminals 82 having a part of the common address are grouped, and the transmission signal Vs is collectively applied to each group. When the mode data signal MD receives the transmission signal Vs in the address confirmation mode, the operation terminal 82 that has generated the interrupt signal Vi is synchronized with the signal return period WT of this transmission signal Vs, and the operation terminal 82 is operated.
The address data set in is returned as reply data. In this way, the transmission processing device 81 acquires the address of the operating terminal device 82 that has generated the interrupt signal Vi, and accesses the operating terminal device 82 using the acquired address to connect to the operating terminal device 82. The operation data corresponding to the operation state of the operated switch SW is received as reply data.

In the transmission processing device 81, the operation terminal device 82
Based on the operation data returned from the control data, the control data to be transmitted to the control terminal device 83 to which the load L having the corresponding relationship with the switch SW is connected is created, and the transmission signal Vs including the control data is generated. The load L is controlled by sending it to the signal line Ls and transmitting the control data to the corresponding control terminal device 83.

The operation terminal 82 can connect up to four switches SW independent of each other, and the control terminal 83 can connect up to four loads L independent of each other. It is configured. That is, the operation terminal 8 in which the same address data is set
The load number data of 2 bits is set for each of the 2 and the control terminal device 83 so that the switch SW and the load L can be identified up to a maximum of four.

By the way, the case of the conventional operating terminal 82 is for a standardized embedded wiring device so that it can be installed in the same manner as an embedded wiring device standardized in JIS or the like. The external shape and dimensions are set so that it can be attached to the mounting frame standardized in. That is, the rear portion of the case projects rearward of the mounting frame and is attached to the construction surface with the rear portion of the case being inserted into the construction surface. Further, in order to wire the signal lines Ls between the operation terminals 82, terminals for wire feeding are provided.

[0010]

In the above-mentioned conventional configuration, each operation terminal 8 is provided by sending the signal line Ls and wiring.
2 can be connected to the signal line Ls, but wiring work between the operation terminals 82 is required even when a plurality of operation terminals 82 are arranged in parallel at one place. Therefore, there is a problem that the wiring construction becomes troublesome.

An object of the present invention is to solve the above problems and to eliminate the need for wire connection work for feeding wires between a plurality of operation terminals arranged in parallel at one place, thereby performing wiring work. It is intended to provide a mounting frame for an operating terminal which is facilitated.

[0012]

According to a first aspect of the present invention, a plurality of terminals each having an address separately are connected to a transmission processing device via a two-wire signal line in a time division multiple connection system and operated. The load connected to the control terminal by transmitting the operation data generated based on the operation of the switch on the control terminal to the control terminal which has a preset correspondence relationship by the address via the transmission processing device. A mounting frame used for a remote monitoring control system for controlling a case of an operation terminal, and a metal base frame having a plurality of mounting windows into which rear parts of the cases are inserted respectively. ,
Insulating frame made of insulating material and formed in substantially the same shape as the base frame and laminated on the front surface of the base frame, and leaf springs on both sides of the front side of the insulating frame corresponding to both sides surrounding each mounting window. A holding spring having a holding contact piece that is fixed to each piece and bent into a shape protruding toward the mounting window, and the holding contact piece of the holding spring is elastically attached to the front side of the holding claw protruding from the side surface of the case. The side that touches the lead plate that is connected to the signal line and exposed on the side surface of the case while holding the holding claws to prevent the case from moving forward and partition the space between adjacent mounting windows. The holding spring corresponding to one piece is characterized in that it comprises a bridging piece for continuously and integrally connecting both holding contact pieces corresponding to the other mounting windows.

According to a second aspect of the present invention, in the first aspect of the present invention, the holding contact piece is formed by arranging a holding piece that elastically contacts the holding claw and a contact piece that contacts the lead plate in the longitudinal direction of the side piece. It has been done. According to the invention of claim 3, in the invention of claim 2, the holding spring is fixed to the insulating frame such that the fixing boss projectingly provided on the front surface side of the insulating frame is inserted into the holding spring.

According to a fourth aspect of the present invention, in the first to third aspects of the present invention, a mounting hole into which a box screw to be screwed into an embedded box standardized for an embedded wiring device is inserted is provided. At the same time, an off-the-shelf decorative plate used for wiring equipment is attached, and the external dimensions are set so that the front side is covered with the decorative plate leaving the exposed part of the case including the operation part of the switch. To do.

[0015]

In the structure of claim 1, the insulating frame is laminated on the base frame having a plurality of mounting windows, and a pair of holding springs is fixed to the side pieces between the adjacent mounting windows. A pair of holding contact pieces that are continuously and integrally connected via a bridging piece, and are electrically connected to the connection portion to the signal line and exposed on the side surface of the case of the operation terminal. Since the holding contact piece is brought into contact with the plate, simply by attaching the case of the operation terminal device to the mounting frame, the signal wire can be sent via the holding spring, and wiring work for the separate feed wiring can be performed. There is no need to give it. Further, since the holding spring is fixed to the metal base frame via the insulating frame, the holding spring and the base frame are kept insulated, and sufficient strength can be obtained by the base frame. Moreover, the holding contact portion of each holding spring fixed to both side pieces of each mounting window is
The holding claws protruding from the side surface of the case of the operation terminal are bent so as to hold it between the side piece, and if the rear part of the case of the operation terminal is inserted into the mounting window, the case Will be attached to the mounting frame, so that the case can be easily attached to and detached from the mounting frame.

According to the second aspect of the present invention, the holding piece that elastically contacts the holding claw and the contact piece that contacts the lead plate are arranged side by side in the longitudinal direction of the side piece. Therefore, the mechanical holding portion and the electrical contact portion can be designed so as to match each other, as compared with the case where both are used.

According to the third aspect of the present invention, since the holding spring is fixed to the insulating frame by inserting the fixing boss protruding from the front surface of the insulating frame into the holding spring, the positioning of the holding spring with respect to the insulating frame is accurate. In addition, the holding spring can be firmly fixed while maintaining insulation against the base frame. According to the configuration of claim 4, since it is formed so that it can be attached to an embedding box that is standardized for an embedded wiring device, and a decorative plate used for the embedded wiring device is attached. , It becomes possible to use the embedded box and the decorative plate that have been provided so far, and it is possible to divert the ones for wiring equipment as the members required for the construction, and suppress the increase in manufacturing cost. be able to.

[0018]

EXAMPLE The internal circuit of the operating terminal 82 is constructed as shown in FIG. That is, the signal processing unit 91 including a dedicated integrated circuit incorporating a microprocessor is provided,
The signal processing unit 91 is connected to the signal line Ls through the transmitting / receiving unit 92. The signal processing unit 91 operates based on the function data and the address data stored in the storage unit 93 formed of a non-volatile memory. The address data defines an address unique to the operation terminal device 82 and the control terminal device 83.
The function data is stored in each load L by operating each switch SW.
The switches SW and the loads L are made to correspond one-to-one so that the switches SW and the loads L are made to correspond one-to-many so as to collectively control a plurality of loads L by operating each switch SW. Of the correspondence data for selecting the switch L and the timer operation such that the load L is operated for a fixed time after the switch SW is operated, or the operation of the load L is stopped after the switch SW is operated for a fixed time. Contains data. The function data and the address data stored in the storage unit 93 are wireless signals and signal lines by infrared rays or the like from the address setter 85 (see FIG. 7) transmitted / received by the wireless transmission / reception unit 94 including the light receiving element LR and the light emitting element LE. Rewriting is possible by the transmission signal Vs in the setting mode in which Ls is transmitted.
The power supply for the internal circuit of the operation terminal 82 is obtained by stabilizing the transmission signal Vs on the signal line Ls by full-wave rectification by the power supply circuit unit provided in the transmission / reception unit 92.

The address setter 85 sends out a wireless signal by infrared rays, and sets, confirms, and corrects the function data and the address data stored in the storage section 93. That is, when the wireless transmission / reception unit 94 receives the wireless signal from the address setting unit 85, the signal processing unit 91 operates the data in the storage unit 93 according to the operation requested by the wireless signal. When data setting is requested, the storage unit 93 is operated according to the content of the wireless signal.
Data of the wireless transmission / reception unit 94 and a reception confirmation signal indicating that the wireless signal is normally received.
Through the address setter 85. When the data confirmation is requested, the data in the storage unit 93 is read and transmitted to the address setter 85. When the data correction is requested, the required data is written in the same manner as the setting, and the written data is written. It is returned to the address setter 85.

The operation terminal 82 is provided with a pair of display lamps LD ₁ and LD ₂ each of which includes a light emitting diode which is turned on and off according to the control state of the load L associated with the operation of the switch SW, for each switch SW. , One of each pair corresponding to each switch SW is lit when the corresponding load L is operating, and the other is lit when the load L is not operating. A crystal oscillator 95 for generating a clock signal and a reset circuit 96 for resetting at the start of operation are connected to the signal processing unit 91.

As shown in FIG. 5, the circuit is mounted on a circuit board 2 which is a printed wiring board, and the circuit board 2 is housed in a case 1. The case 1 has a rectangular parallelepiped body 10 having a small front and rear opening, a cover 20 formed in a rectangular shape having a small front and rear opening and covering the front opening of the body 10, and a front surface of the cover 20. It is formed by the makeup cover 30. Body 10 and cover 2
0 is an assembly hole 1 in which an assembly claw (not shown) provided on the back side of the cover 20 is formed at one side edge of the body 10.
1 is engaged with the peripheral portion of 1 and an assembly screw (not shown) inserted through the through hole 12 drilled in the body 10 is screwed into a boss (not shown) provided on the back surface of the cover 20. Be combined by Here, the cover 20
Is larger than the body 10 in the vertical and horizontal directions, and the rear portion of the body 10 projects rearward from the rear surface of the cover 20. Engaging claws (not shown) are provided on the back surface of the decorative cover 30, and the engaging claws are engaged with the peripheral portions of the engaging holes 23 formed at the four positions of the cover 20, so The makeup cover 30 is detachably connected. A name plate 40 made of a synthetic resin sheet is attached to the front surface of the decorative cover 30.

A pair of upper and lower holding claws 13 are provided on each side of the body 10 so as to project therefrom. The cover 20 is provided with operation pieces 26 as operation portions of the switches SW at positions corresponding to the four switches SW which are push button switches mounted on the circuit board 2. The operation piece 26 is inserted into the operation hole 27 formed in the cover 20, and the essential parts of the peripheral portion of the operation piece 26 are continuously and integrally joined to the peripheral edge of the operation hole 27 so as to be elastically movable back and forth. ing. That is, the operation piece 2
When a pressing force is applied to 6 from the front, the switch SW can be operated, and when the pressing force applied to the operation piece 26 is released, the operation piece 26 is elasticized by a portion connecting the periphery of the operation hole 27 and the operation piece 26. Is designed to return to its original position. The front portion of the operation piece 26 projects forward of the cover 20. The cover 20 is formed with a display hole 28 into which the display lamps LD ₁ and LD ₂ corresponding to the respective switches SW are inserted in pairs, and further a light receiving element L for transmitting / receiving a wireless signal.
A signal hole 29 for exposing R and the light emitting element LE is also formed.

An insertion hole 31 through which the front portion of the operation piece 26 is inserted is formed in the decorative cover 30 so as to correspond to each operation piece 26, and further in a portion corresponding to the display hole 28 and the signal hole 29 of the cover 20. The display hole 32 and the signal hole 33 are punched. Here, the front portion of the operation piece 26 is a makeup cover 30.
Is dimensioned to project slightly from the front of the.

The nameplate 40 is formed with an operation portion 41 having a step on the peripheral portion so as to project slightly forward at a portion corresponding to the operation piece 26, and the operation portion 41 has a thickness direction so that the operation piece 26 can be operated. It has flexibility. Most of the nameplate 40 is transparent so that the characters on the name card 45 sandwiched between the operation section 41 and the operation piece 26 can be read. A band-shaped non-translucent portion 42 is formed in a portion of the nameplate 40 where the display holes 32 and the signal holes 33 are arranged, and a portion of the non-translucent portion 42 corresponding to the display hole 32 transmits a visible light. And the non-translucent portion 42 is formed.
In the above, an infrared transmitting portion 44 for transmitting infrared rays is formed in a portion corresponding to the signal hole 33.

The circuit board 2 is housed in the space formed between the body 10 and the cover 20, and the left and right side portions of the circuit board 2 are provided so as to project from the one side portion of the body 10. It is sandwiched between the locking claw 15 and the rear wall of the body 10, and the other side of the circuit board 2 is positioned by engaging the notch 16 with the assembly screw. Further, one end of a lead plate 3 made of a conductive plate spring penetrating the peripheral wall of the body 10 is connected to the circuit board 2 by soldering. Lead plate 3
A contact portion 3a bent in a substantially J shape is formed on the back side of the case 1 at the other end. A pair of lead plates 3 is provided on each of the left and right side surfaces of the case 1. A hooking piece 55 provided on the connector 50 (see FIG. 1) is provided at the center of the body 10.
Coupling hole 17 for mechanically coupling the connector and the connector 50
The connection hole 18 for introducing the contactor 54, which is a conductive portion, into the case 1 is bored as a connection portion with the connector 50. A pair of the coupling hole 17 and the connection hole 18 are provided and formed in an arc shape. The connector 50 is used to connect the signal line Ls to the internal circuit of the case 1, and the pair of lead plates 3 exposed on the left and right side surfaces of the case 1 are connected to the signal line Ls via the conductive pattern of the circuit board 2. It is electrically connected.

The case 1 formed as described above is shown in FIG.
As shown in FIG. The mounting frame 60 is formed by laminating an insulating frame 62 having substantially the same shape as the base frame 61 on the front surface of a metal base frame 61. The insulating frame 62 is made of synthetic resin. Further, the mounting frame 60 shown in this embodiment has three mounting windows 63, and the case 1 can be attached to each mounting window 63. A pair of holding springs 7 made of a conductive metal leaf spring is provided on the front surface of the insulating frame 62 on both side pieces 64, 65 surrounding each mounting window 63.
0a and 70b are fixed. The holding spring 70 a provided on the side piece 64 that partitions the adjacent mounting windows 63 is formed in a shape in which holding contact pieces 73 are continuously and integrally provided at both ends of the bridging piece 71. In addition, side pieces 65 at both ends of the mounting frame 60
The holding spring 70b provided in the above is formed in a shape in which the holding contact piece 73 is continuously and integrally provided at one end of the fixed piece 72. As shown in FIG. 2, the holding contact piece 73 is bent in a V shape protruding toward the inside of the mounting window 63 (see FIG. 3). Holding piece 73a in the longitudinal direction of the side pieces 64, 65
And a contact piece 73b are arranged side by side to form a bifurcated shape.
Further, fixing holes 74 are formed in the central portions of the bridging pieces 71 and the fixing pieces 72, respectively, and fixing bosses 66 projecting from the insulating frame 62 are inserted into the fixing holes 74 and heat staking or the like. The holding springs 70a and 70b are fixed to the insulating frame 62.

With the holding springs 70a, 70b fixed to the insulating frame 62, the holding piece 73a is located corresponding to the holding claw 13 of the case 1, and the contact piece 73b is the contact portion 3 of the lead plate 3.
Located corresponding to a. However, as shown in FIG. 4, when the case 1 is fitted to the mounting window 63 of the mounting frame 60 from the front and the holding claws 13 pass over the bent portion of the holding piece 73a, the holding piece 73a is attached to the front side of the holding claw 13. Will make elastic contact and prevent forward movement of the case 1 (Fig. 2 (a)).
reference). In this state, the rear surface of the cover 20 forming the case 1 contacts the front surface of the peripheral portion of the mounting window 63, and the case 1 is prevented from dropping rearward with respect to the mounting frame 60. When the case 1 is attached to the mounting frame 60, the dimensional relationship is set so that the back surface of the case 1 is substantially flush with the back surface of the mounting frame 60 or slightly forward of the back surface of the mounting frame 60. . Further, as shown in FIG. 2B, in this state, the contact piece 73b is elastically contacted with the contact portion 3a of the lead plate 3 exposed on the side surface of the case 1. Will be electrically connected via the holding spring 70, and by simply attaching the case 1 to the mounting frame 60, the signal line can be sent and wired without additional connection.

Above and below the respective mounting windows 63 of the mounting frame 60, a pair of left and right long mounting holes 67 are formed in the base frame 61, through which box screws are respectively inserted.
The insulating frame 62 has a through hole 68 at a portion corresponding to the mounting hole 67.
Is formed. As for the distance between the upper and lower mounting holes 67 and the insertion hole 68, a box screw screwed onto the tongue piece 4a of the embedding box 4 used at the time of construction of the embedding-type wiring device standardized by JIS standard or the like can be inserted. It is set to be possible. That is, the intervals between the upper and lower mounting holes 67 and the insertion holes 68 are set to be the same as the mounting frame for three large polygons capable of mounting up to three embedded wiring devices having standardized unit dimensions. is there. As a result, the mounting frame 60 can be attached to the ready-made embedded box 4 for wiring equipment.

Further, the mounting plate 60 is adapted to be attached with the decorative plate 5 which is used when the standardized embedded wiring equipment is installed. That is, the decorative plate 5 includes a middle frame 5a having a claw that engages with the peripheral edge of the mounting frame 60, and a middle frame 5a.
And an outer frame 5b having a claw 5d (see FIG. 3 (b)) that is detachably coupled to the outer frame 5b. An exposure window 5c through which the front portion of the case 1 can be inserted is opened in the outer frame 5b. Therefore, it is possible to expose the portion of the operation piece 26 that exerts a pressing force through the exposure window 5c of the decorative plate 5. As described above, since the ready-made decorative plate 5 used in the embedded wiring device can be attached to the mounting frame 60, not only the embedded box 4 but also the decorative plate 5 can be prepared. It can be diverted and an increase in the manufacturing cost of the members required for construction can be suppressed.

By the way, the case 1 is provided with a pair of floating preventing pieces 19 projecting on both upper and lower peripheral surfaces of the cover 20, and the floating preventing pieces 19 are attached to the mounting frame 60 when the case 1 is attached to the mounting frame. Abut the front surface of 60. Further, when the middle frame 5a is coupled to the mounting frame 60, the lifting prevention piece 19
Is sandwiched between the mounting frame 60 and the middle frame 5a. Therefore, the case 1 includes the mounting frame 60 and the middle frame 5a.
By the above, the movement to the front and back is prevented, and the case 1 is firmly fixed.

In the above embodiment, the three cases 1 are attached to the attachment frame 60, but the technical idea of the present invention is applicable to the case where two or more cases 1 are attached. You can

[0032]

According to the invention of claim 1, an insulating frame is laminated on a base frame having a plurality of mounting windows, and a pair of holding springs is fixed to a side piece between adjacent mounting windows. The holding spring is formed in a shape in which a pair of holding contact pieces are continuously and integrally connected via a bridging piece, and is electrically connected to the connection portion to the signal line and exposed on the side surface of the case of the operation terminal. Since the holding contact piece is brought into contact with the lead plate, the wiring of the signal line can be done via the holding spring by simply attaching the case of the operation terminal device to the mounting frame, and the wiring for the feeding wire can be separately provided. It has the advantage that no work is required. Also, since the holding spring is fixed to the metal base frame via the insulating frame,
The holding spring is insulated from the base frame, and the base frame has sufficient strength. Moreover, the holding contact portion of each holding spring fixed to both side pieces of each mounting window is bent so as to hold the holding claw protruding from the side surface of the case of the operation terminal between the holding piece and the side piece. Therefore, if the rear part of the case of the operation terminal is inserted into the attachment window, the case is attached to the attachment frame, and the case is easily attached to and detached from the attachment frame.

According to the second aspect of the present invention, since the holding piece elastically contacting the holding claw and the contact piece contacting the lead plate are arranged side by side in the longitudinal direction of the side piece, the mechanical holding of the case and the lead plate are performed. Since the electrical connection is made at a different place, there is an advantage that the mechanical holding portion and the electrical contact portion can be designed so as to be fitted to each other as compared with the case where both are used in common.

According to the third aspect of the present invention, since the holding spring is fixed to the insulating frame by inserting the fixing boss protruding from the front surface of the insulating frame into the holding spring, the positioning of the holding spring with respect to the insulating frame is accurate. In addition, there is an advantage that the holding spring can be firmly fixed while insulating the base frame. The invention of claim 4 is formed so that it can be attached to an embedding box that is standardized for an embedded wiring device, and a decorative plate used for the embedded wiring device is attached. , It becomes possible to use the embedded box and the decorative plate that have been provided so far, and it is possible to divert the ones for wiring equipment as the members required for the construction, and suppress the increase in manufacturing cost. The effect is that you can.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment.

2A and 2B show an embodiment, FIG. 2A is a sectional view showing a relationship between a holding piece and a holding claw, and FIG. 2B is a sectional view showing a relationship between a contact piece and a lead plate.

3A and 3B show a relationship between a mounting frame and a decorative plate in an embodiment, FIG. 3A is a front view with an outer frame removed, FIG. 3B is a partially cutaway bottom view, and FIG. Is.

FIG. 4 is an operation explanatory diagram of the embodiment.

FIG. 5 is an exploded perspective view showing an operation terminal used in the embodiment.

FIG. 6 is a block circuit diagram of an operation terminal used in the embodiment.

FIG. 7 is a schematic configuration diagram of a remote monitoring control system.

FIG. 8 is an operation explanatory diagram illustrating a transmission signal used in the remote monitoring control system.

[Explanation of symbols]

 1 Case 3 Lead Plate 4 Embedded Box 5 Decorative Plate 13 Holding Claw 60 Mounting Frame 61 Base Frame 62 Insulating Frame 63 Mounting Window 64 Side Piece 65 Side Side 66 Fixing Boss 67 Mounting Hole 70a Holding Spring 70b Holding Spring 71 Bridge Bridge 72 Fixed piece 73 Holding contact piece 73a Holding piece 73b Contact piece 81 Transmission processing device 82 Operation terminal device 83 Control terminal device L Load Ls Signal line SW switch

Claims (4)

[Claims] 1. A plurality of terminals each having an address separately are connected to a transmission processing device through a two-wire signal line in a time division multiple connection system, and based on operation of a switch on an operation terminal. Used in a remote monitoring control system that controls the load connected to the control terminal by transmitting the generated operation data to the control terminal in which the correspondence by address is preset through the transmission processing device, A mounting frame to which the case of the operation terminal is attached, the base frame made of metal having a plurality of mounting windows into which the rear parts of the cases are respectively inserted, and made of an insulating material and having substantially the same shape as the base frame. Corresponding to both sides of the insulating frame that is formed on the front surface of the base frame and is composed of leaf springs and surrounds each mounting window, one pair of each side piece is fixed to the front side of the insulating frame and attached to the mounting window side. Bend to protruding shape And a holding spring having a bent holding contact piece, the holding contact piece of the holding spring elastically contacts the front side of a holding claw protruding from the side surface of the case to prevent the case from moving forward, and The holding springs that correspond to the side pieces that connect to the wires and contact the lead plate that is exposed on the side surface of the case while holding the holding claws and partition the space between adjacent mounting windows correspond to other mounting windows. An attachment frame for an operation terminal, comprising a bridging piece that continuously connects both holding contact pieces described above. 2. The holding contact piece is formed by arranging a holding piece that elastically contacts the holding claw and a contact piece that contacts the lead plate in the longitudinal direction of the side piece. Mounting frame for the operation terminal. 3. The operating terminal according to claim 2, wherein the holding spring is fixed to the insulating frame such that a fixing boss protruding from the front side of the insulating frame is inserted into the holding spring. Mounting frame for vessels. 4. A ready-made decorative plate used for a wiring device is attached, which has a mounting hole into which a box screw to be screwed into an embedded box standardized for an embedded wiring device is inserted. The external dimensions are set so that the front surface is covered with the decorative plate except for the exposed portion of the case including the operation portion of the switch. Attachment frame for terminals.