JPH0447507B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention provides a main unit and a slave unit that are connected to each other via a signal line and are arranged in separate rooms, and that a master unit and a slave unit are connected to each other via a signal line, and that a master unit and a slave unit are connected to each other through a signal line, and that a master unit and a slave unit are arranged in separate rooms, and This invention relates to a child device of an indoor communication alarm device that provides notification by a notification device provided in the main device.

[Background Art] Recently, houses have become stratified and airtight, making it difficult for people's voices to be heard inside the house. For this reason, when an elderly or sick person calls other family members, there is a problem that the call is not transmitted to the family members. In order to solve these problems, there is a need for an inter-room communication alarm that can make calls between rooms.

As an indoor communication alarm that meets this demand,
As shown in FIG. 10, a system has been proposed in which a master device 2 and slave devices 1 ₁ to 1 ₄ connected via signal lines 4 ₁ to 4 ₄ are arranged in separate rooms. Master device 2
is placed in a room where someone is usually present, such as the kitchen or living room, and slave units ₁₁ to ₁₄ are placed in bathrooms, toilets, children's rooms, elderly parents' rooms, etc. Child device 1 ₁ ~
1 ₄ is equipped with an operation switch 11 , while the master device 2 is equipped with a sounding device such as a buzzer that generates a notification sound when the operation switch 11 of the slave devices 1 ₁ to 1 ₄ is operated, and which slave device 1 Indicators _L1 to _L4 indicating whether _the operation switch 11 has been operated are provided as _a notification device. More specifically, the circuit configuration of the indoor communication alarm is as shown in FIG.
The power supply circuit 5 supplies power to each slave unit 1 ₁ to 1 ₄ and the master unit 2 . Each of the slave devices 1 ₁ to 1 ₄ is equipped with a buzzer 12 that is a piezoelectric buzzer and an operation switch 11 that is a push button switch, and circuits having the same configuration are connected to each of the slave devices 1 ₁ to 1 ₄ .
That is, for one child device 1 ₁ to 1 ₄ , connection circuits 6 ₁ to 6 ₄ and display circuits 7 ₁ to 7 ₄ are connected, and connection circuits 6 ₁ to 6 ₄ of each child device 1 ₁ to 1 ₄ are connected. is connected to a notification sound generation circuit 8 and a response calling circuit 9.
The connection circuit 6 detects the open/closed state of the operating switch 11 by detecting the current flowing between both lines, and when the operating switch 11 is closed, the signal lines 4 ₁ to 4 ₄ consisting of a pair of lines are connected. A state where both lines are short-circuited and a state where the operation switch 11 is opened and there is no short-circuit between both lines are discriminated. The display circuits 7 ₁ to 7 ₄ are indicator lights L ₁ to _{L 4} made of light emitting diodes.
When the operating switch 11 is closed, the indicator lights L ₁ to _{L 4} are turned on for a predetermined period of time from that point on. That is, by lighting up the indicator lights _L1 to _L4 , it is possible to know which of the slave devices ₁₁ to ₁₄ the operation switch 11 has been operated. The notification sound generation circuit 8 has a buzzer B, and when it is detected that any one of the operation switches 11 of each slave device ₁₁ to ₁₄ is closed, the buzzer B sounds. It's getting old. Therefore, when the operating switches 11 of the slave devices ₁₁ to ₁₄ are closed, the buzzer B sounds to notify that a call has been received. The response call circuit 9 includes call switches SW ₁ to SW ₄ corresponding to the slave devices 1 ₁ to 1 ₄ , and by closing any of these call switches SW ₁ to SW ₄ ,
Corresponding child devices 1 ₁ to 1 ₄ via connection circuits 6 ₁ to 6 ₄
The buzzer 12 is set to sound. With the above configuration, calls can be made in both directions between the slave devices 1 ₁ to 1 ₄ and the master device 2.

By the way, the slave unit of the inter-room communication alarm configured as described above has a mounting plate so that it can be attached to a wall surface or the like. In conventional slave devices, the housing containing the operating switch and buzzer was installed in an opening formed in the mounting plate, so when using the slave device in a bathroom etc. , it is necessary to waterproof the space between the mounting plate and the housing.

[Object of the Invention] The present invention has been made in view of the above-mentioned points, and its object is to integrate a part of the mounting plate with the housing and improve waterproof performance between the mounting plate and the housing. An object of the present invention is to provide a slave device for an indoor communication alarm device with improved performance.

[Disclosure of the Invention] (Structure) The child device of the indoor communication alarm according to the present invention is arranged in a room different from the room in which the parent device is arranged, and is connected to the parent device via a signal line. In the slave unit of the indoor communication alarm, in which the slave unit is connected to the slave unit, and the alarm device installed in the main unit issues an alarm in response to the operation of the operation switch installed in the slave unit, the housing is attached to a wall surface, etc. It has a mounting plate that is attached to a surface and a body with an open front that is connected to the back side of the mounting plate. Waterproof packing is sandwiched between the periphery of the mounting plate and the mounting surface, and the periphery of the opening of the body is A gasket is housed in a groove with a front opening formed around the entire circumference, and is sandwiched between the mounting plate and the body, and is installed at a location corresponding to the actuator of the operating switch housed inside the housing. A handle storage chamber is integrally recessed in the front of the plate, and a flexible waterproof cover that seals the front of the handle storage chamber has its back surface abutted against the actuator facing into the handle storage chamber. A handle that presses the actuator of the operation switch through the waterproof cover is provided on the front of the waterproof cover, and a flexible membrane sheet that covers the front of the handle is provided on the front of the mounting plate. It consists of a decorative plate that is in close contact with the body, and on the back side of the mounting plate, a packing is sandwiched between the body and the mounting plate, and a waterproof packing is sandwiched between the mounting plate and the mounting surface. In addition, on the front side of the mounting plate, a waterproof cover is provided to cover the handle storage chamber that is integrally formed on the mounting plate, and the front of the waterproof cover is covered with a membrane sheet that adheres to the decorative plate. The front side and the back side each have a double seal structure for the internal space of the body, resulting in excellent waterproof performance.

(Embodiment 1) As shown in FIG. 1, the slave unit 1 is constructed by housing a board 10 on which at least an operation switch 11 consisting of a push button switch and a sounding device 12 such as a buzzer are mounted in a housing 3. ing. The housing 3 has a body 20 and a mounting plate 30 made of thermoplastic resin such as ABS resin, and a board storage recess 21 formed at the center of the front surface (upper surface in FIG. 1) of the body 20. 10 are arranged. As shown in FIG. 2, a groove 22 is formed on the front surface of the body 20, extending all the way around the substrate storage recess 21. Further, a groove portion 23 is formed on the rear surface of the body 20 over substantially the entire length of a portion corresponding to the rear surface of the groove 22. By forming the groove portion 23 on the back side of the groove 22 in this way,
The wall thickness of the body 20 becomes substantially uniform, and sink marks are prevented from being formed on the surface of the body 20 during resin molding. A terminal portion is formed at one location corresponding to the substrate storage recess 21, and a pair of terminals 24 are attached to the terminal portion from the back side of the body 20. Each terminal 24 is formed into a substantially U-shape, and a terminal screw 25 is screwed into the center piece. In the terminal section, holes 26a and 26b into which the legs of each terminal 24 are inserted, and holes 27 into which the legs of the terminal screws 25 are inserted are formed on the back surface of the board 10. One of the holes 26a and 26b into which the body 20 is inserted is 26a.
One leg of the terminal 24 is inserted through the front and back sides of the terminal. That is, one leg of the terminal 24 is longer than the other leg, and the longer leg is longer than the other leg.
It penetrates the front and back sides of the board 10 and is electrically connected to the board 10 by soldering. A partitioning rib 28 is provided protruding from the terminal portion on the back surface of the body 20, and both terminals 24 are separated by the partitioning rib 28. body 20
The engaging claw 3 of the mounting plate 30, which will be described later, is located around the periphery of the mounting plate 30.
An engagement hole 29, into which the body 20 is engaged, is formed so as to penetrate through both the front and back sides of the body 20.

A mounting plate 30 is fitted onto the front surface of the body 20, and as shown in FIG. The packing 15 is attached. This packing 15 makes the joint between the body 20 and the mounting plate 30 waterproof. A switch opening 31 and a sounding device opening window 32 are formed in the center of the mounting plate 30, through which the actuator 13 of the operating switch 11 and the sounding device 12 mounted on the board 10 are exposed, respectively. On the back side of the mounting plate 30, four holes are formed on the peripheries of both opening windows 31 and 32 at positions corresponding to the engagement holes 29 formed in the body 20.
A book engaging claw 33 is provided in a protruding manner, and as shown in FIG. . On the back surface of the mounting plate 30, a fourth
As shown in the figure, a pressing rib 34 is provided in a protruding manner, and a pressing claw 35 that is inserted into the groove 22 is provided in a protruding manner on the tip end surface of the pressing rib 34 . That is, body 20
In the state where the body 20 and the mounting plate 30 are combined, the packing 15 is pressed by the pressing rib 34, and a part of the packing 15 is further pressed by the presser pawl 35 and deformed, so that the body 20 and the mounting plate 30 are connected to each other. The sealing effect between the two is becoming more effective. In addition, since the packing 15 is housed in the groove 22, the pressing force acts evenly on the entire packing 15, and since the groove 23 is formed on the back side of the groove 22, the body 20
This prevents the groove 22 from deforming due to the pressing force when the mounting plate 30 and the mounting plate 30 are connected.
In this way, since the body 20 and the mounting plate 30 are engaged with each other through the gasket 15, it is difficult to connect the body 20 and the mounting plate 30 with adhesive or the like due to insufficient adhesive or air bubbles. There is no reduction in the sealing effect or spillage due to overfilling of the adhesive, and the sealing effect does not vary among individual products. Further, since it can be assembled by simply engaging the body 20 and the mounting plate 30, there is an advantage that the assembly work is easy. By the way, the area around the switch opening 31 and the sounding device opening window 32 is the mounting plate 3.
It is recessed from the front of 0, and the opening window for the switch 3
The recess formed around the handle 1 is a handle 4 which will be described later.
1 is stored, and the recess formed around the opening window 32 for the sounding device serves as a sounding device storage chamber 37 that acts to efficiently radiate the sound of the sounding device 12 forward. It's summery. Inside the handle storage chamber 36, a waterproof cover 16 is installed, which is made of elastic synthetic resin such as special soft vinyl chloride, rubber, etc. and has a central portion that bulges out forward.The waterproof cover 16 closes the switch opening. Window 31 is closed. A presser frame 17 is disposed on the front surface of the periphery of the waterproof cover 16, and the waterproof cover 16 is held between the inner peripheral surface of the handle storage chamber 36 and the presser frame 17. The holding frame 17 is fixed to the mounting plate 30 by adhesive bonding or ultrasonic heat bonding. On the other hand, the sound generation device storage room 37
The front surface is sealed with a flexible waterproof sheet 18 formed into a thin film shape of polyethylene film or the like. Since the waterproof sheet 18 is in the form of a thin film, the sounding device 1 stored in the sounding device storage chamber 37
2 vibrates, and even though the sound generating device storage chamber 37 is sealed with the waterproof sheet 18, the sound waves can be transmitted to the outside.

A decorative plate 40 is provided on the front of the mounting plate 30.
will be placed. Since the decorative plate 40 is exposed to the outside and is exposed to water, it is made of thermoplastic resin with excellent environmental resistance. An opening window 42 for operating the handle and an opening window 4 for transmitting notification sound are provided in the corresponding parts.
3 is formed. Opening window 4 for handle operation
2 contains an actuator 13 for the operation switch 11.
The front surface of the handle 41 for pressing is exposed. The handle 41 has a flange piece 44 around the rear end, and a pressing protrusion 45 is protruded from the back surface of the handle 41. Further, a notch groove 46 running back and forth is formed on the side surface of the handle 41. By the way, as shown in FIG. 5, four holding claws 47 are protruded from the periphery of the handle operation opening window 42 on the back side of the decorative plate 40, and these holding claws 47 are inserted into the notch grooves 46. engage. Notch groove 46 and holding claw 47
are engaged with each other so that the handle 41 can be moved back and forth, and the movement of the handle 41 is restricted when the handle 41 is in a retracted position. Furthermore, the flange piece 44 comes into contact with the rear surface of the peripheral edge of the handle operation opening window 42, thereby preventing the handle 41 from falling off forward. Since the handle 41 is held by the holding claws 47 formed on the decorative plate 40 in this way, the holding structure of the handle 41 is simple, and the mold for forming the part has the advantage of being simple in shape. The decorative plate 40 is press-fitted to the mounting plate 30 at the peripheral portion, and in this state, the pressing protrusion 45 formed on the back surface of the handle 41 comes into contact with the front surface of the waterproof cover 16, and when the handle 41 is pressed, the waterproof cover is closed. Operation switch 11 that is in contact with the back of 16
actuator 13 is pressed. When the pressing force is released from the handle 41, the return spring in the operation switch 11 and the return force of the waterproof cover 16 push the handle 41 forward and return it. Decorative plate 4
0, where the opening window 42 for handle operation and the opening window 43 for transmitting the notification sound are formed are slightly recessed from the front side to form a recess 48, and inside the recess 48 there is a resistant material such as polycarbonate. An elastic membrane sheet 49 made of environmentally friendly resin or rubber is attached. Membrane sheet 49
is attached to the decorative plate 40 with adhesive, and seals the handle operation window 42 and the notification sound transmission window 43. Generally, when the front side of the sounding device 12 is closed, the sounding device 12
Although it becomes difficult for the notification sound from to be transmitted to the outside, the sound generation device storage chamber 37 is formed to increase the forward radiation efficiency of the notification sound, and the front surface of the sound generation device 12 (sound wave radiation direction) can be vibrated by the notification sound. By disposing the thin waterproof sheet 18 and membrane sheet 49, the notification sound can be sufficiently transmitted.

When attaching the slave unit 1 configured as described above to the mounting surface 60 such as a wall surface, as shown in FIG.
Fix the mounting frame 51 using the box screw 52 inserted into the mounting hole 56 of the mounting frame 51, and
The mounting plate 30 is fixed to the mounting frame 51 using plate screws 54 that are screwed into screw holes 53 formed at the four corners of the mounting plate 30. Here, a waterproof gasket 55 is sandwiched between the mounting plate 30 and the mounting surface 60, and a seal is formed between the mounting surface 60 and the mounting plate 30. In this way, the mounting plate 30
By attaching the housing 3 to the mounting surface 5,
This prevents water from leaking into the interior and into the embedded box 61. In addition, a double seal structure is provided to the inside of the body 20 by the waterproof packing 55 and the packing 15, and a reliable sealing effect can be obtained. The decorative plate 40 fitted with the membrane sheet 49 as described above is fitted onto the front surface of the mounting plate 30. This configuration provides a double seal structure of the waterproof cover 16, the waterproof sheet 18, and the membrane sheet 49, making it possible to obtain a reliable sealing effect. Further, by providing the decorative plate 40, the waterproof sheet 18 may be torn if a sharp tool or the like hits the thin waterproof sheet 18, or the adhesive portion may peel off due to external pressing force acting on the waterproof sheet 18. This will prevent things like this from happening.

(Example 2) In this example, as shown in FIG. 7, a lamp 62 such as a light emitting diode that is always lit is mounted on the substrate 10. Since the lamp 62 is always lit, it consumes little power and is highly durable. The light emitted from the lamp 62 is configured to pass through a translucent portion 49a, which is a translucent uncolored portion provided at one location of the membrane sheet 49, and therefore the waterproof cover 16 is made of a transparent material. .

With this configuration, the position of the operating unit 1 can be easily confirmed in the dark. The other configurations are the same as those in the first embodiment, so their explanation will be omitted.

(Embodiment 3) In this embodiment, as shown in FIG. 8, a lamp 63 such as a light emitting diode is mounted on the board 10, which lights up only when the operation switch 11 is operated. Since this lamp 63 lights up only when the operating switch 11 is operated, the user can confirm whether the device is operating reliably.
The light emitted from the lamp 63 is configured to pass through a translucent 49b, which is a translucent uncolored portion provided at one location of the membrane sheet 49, and therefore the waterproof sheet 18 is made of a transparent material. . Here, the emitted light color is appropriately set by a combination of the emitted light color of the lamp 63 and the color of the waterproof sheet 18. The other configurations are the same as those in the first embodiment, so their explanation will be omitted.

(Embodiment 4) In this embodiment, as shown in FIG.
It is formed integrally with 0. The handle 41 is movable back and forth due to the flexibility of the material forming the decorative plate 40, and returns to its original position due to its elasticity. A pressing projection 45 is formed on the back surface of the handle 41, and as in the first embodiment, the actuator 13 of the operation switch 11 is pressed by the pressing projection 45 through the waterproof cover 16. A coupling hook 38 is protruded from the front surface of the mounting plate 30 and is adapted to engage with the back surface of the decorative plate 40 to hold the decorative plate 40. In Example 1, the front shape is rectangular, and in this example, the front shape is approximately square; however, the other configurations are the same as in Example 1, so description thereof will be omitted.

[Effects of the Invention] As described above, in the present invention, the housing has a mounting plate that is attached to a mounting surface such as a wall, and a body with an open front surface that is coupled to the back side of the mounting plate, and the housing has a mounting plate that is attached to a mounting surface such as a wall surface, and a body that has an open front surface that is coupled to the back side of the mounting plate. A waterproof gasket is sandwiched between the mounting plate and the body, and a gasket, which is housed in a groove that opens at the front and is formed around the entire circumference of the opening of the body, is sandwiched between the mounting plate and the body. A handle storage chamber is integrally recessed in the front of the mounting plate at the part corresponding to the actuator of the operation switch housed in the housing, and the handle storage chamber has a flexible structure that seals the front surface of the handle storage chamber. A waterproof cover is disposed with its back surface in contact with the actuator facing into the handle storage chamber, and a handle for pressing the actuator of the operation switch through the waterproof cover is disposed on the front surface of the waterproof cover. A decorative plate with a flexible membrane sheet that covers the front of the handle is placed on the front of the mounting plate, and a gasket is sandwiched between the body and the mounting plate on the back side of the mounting plate. At the same time, a waterproof gasket is sandwiched between the mounting plate and the mounting surface, and a waterproof cover is provided on the front side of the mounting plate to cover the handle storage chamber formed integrally with the mounting plate. Since the front of the cover is covered with a membrane sheet that adheres closely to the decorative plate, the front and back sides of the mounting plate have a double seal structure against the internal space of the body, providing excellent waterproof performance. It has the advantage of

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing Embodiment 1 of the present invention;
Figures 2 a to d are a front view, a cross-sectional view of the stairs taken along the line X-X in Figure a, a cross-sectional view of the stairs taken along the Y-Y line in Figure a, and a rear view, respectively, showing the body used in the above, and Figure 3 a. ~e are respectively a front view, a partially cutaway side view, a rear view, a front view with the decorative plate removed, and a bottom view as above, and Fig. 4 is a cross-sectional view of the main parts as above;
FIG. 5 is an exploded perspective view of the main parts of the same as above, FIG. 6 is an exploded perspective view of the same as above showing how it is attached to a wall, FIG. 7 is an exploded perspective view of Embodiment 2 of the present invention, and FIG. 8 is an exploded perspective view of the invention FIG. 9 is an exploded perspective view showing Embodiment 4 of the present invention. FIG. 10 is a schematic configuration diagram showing the indoor communication alarm according to the present invention.
The figure is a specific circuit diagram of the same as above. 1 is a slave unit, 2 is a master unit, 3 is a housing, 4 is a signal line, 11 is an operation switch, 12 is a buzzer, 13
is actuator, 15 is packing, 16 is waterproof cover, 18 is waterproof sheet, 20 is body, 22
is a concave groove, 29 is an engagement hole, 30 is a mounting plate, 3
3 is an engaging claw, 36 is a handle storage chamber, 37 is a sounding device storage chamber, 40 is a decorative plate, 41 is a handle, 49 is a membrane sheet, 49a is a through hole portion,
49b is a through hole, 55 is a waterproof gasket, 62 is a lamp, and 63 is a lamp.

Claims (1)

[Claims] 1. The child device is installed in a room different from the room in which the parent device is installed, and the parent device and the child device are connected via a signal line, and the operation provided on the child device is In a slave device of an indoor communication alarm device in which a notification device installed on the main device provides notification in response to switch operation, the housing is connected to a mounting plate that is attached to a mounting surface such as a wall, and to the back side of the mounting plate. A waterproof gasket is sandwiched between the periphery of the mounting plate and the mounting surface, and is placed in a groove that is open at the front and is formed around the entire periphery of the opening of the body. The delivered packing is sandwiched between the mounting plate and the body, and a handle storage chamber is integrally recessed in the front of the mounting plate at a portion corresponding to the actuator of the operating switch stored in the housing. A flexible waterproof cover that seals the front side of the handle storage chamber is installed in the handle storage chamber, with its back side in contact with the actuator facing into the handle storage chamber, and an operation switch is installed on the front of the waterproof cover. A handle is provided for pressing the actuator of the device through a waterproof cover, and a decorative plate is provided on the front surface of the mounting plate to which a flexible membrane sheet that covers the front surface of the handle is closely attached. A slave device for the inter-room communication alarm. 2 A sounding device such as a buzzer that generates a notification sound in response to a call from the parent unit is housed in the housing, and a sounding device storage chamber surrounding the sounding device is integrally recessed in the front of the mounting plate. Claim 1 is characterized in that the front surface of the sound generating device storage chamber is sealed with a thin waterproof sheet that can vibrate by the notification sound, and a membrane sheet provided on the decorative plate covers the front surface of the waterproof sheet. A slave device for the inter-room communication alarm described. 3. The indoor communication alarm as set forth in claim 1, wherein the body and the mounting plate are coupled by engagement between an engagement claw provided on one side and an engagement hole provided on the other side. The child of the vessel. 4. The slave unit of the indoor communication alarm according to claim 1, wherein the handle is held by a decorative plate. 5. The lamp according to claim 1, characterized in that a lamp that is lit at all times is disposed within the housing, and a transparent portion is formed on the front surface of the housing to transmit light rays emitted from the lamp. A slave device for the inter-room communication alarm. 6. A patent claim characterized in that a lamp that blinks in response to the operation of an operating switch is disposed within the housing, and a transparent portion that transmits light rays emitted from the lamp is formed on the front surface of the housing. A slave unit of the inter-room communication alarm described in Scope 1.