JP3243235B2 - 2-output push button switch device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-output push-button switch device which can be optimally used in hospitals and homes with severely disabled persons.

[0002]

2. Description of the Related Art A recent television is provided with a remote control device using infrared rays. However, there is a problem that, for example, a person with severe physical disabilities cannot operate. Therefore, a remote control device that can operate a television or a video by operating one switch has been proposed. In a hospital, a push button for a nurse call that is operated by a patient to call a nurse is provided.

[0003]

However, since the above remote control device and the push buttons are separately provided, the user needs to operate them separately, and in the case of a severely disabled person, However, there is a problem that these cannot be surely distinguished. Furthermore, it is easy to configure these devices in combination with the existing timer device.However, when the power supply is driven by a battery, it is necessary to suppress power consumption as much as possible in order to extend the life of the battery. It is necessary to operate emergency nurse calls and the like even when the battery runs out. The present invention has been made in view of such circumstances, and has as its object to provide a two-output push button switch device that can extend the life of a battery as much as possible and can operate even when the battery is dead.

[0004]

According to the present invention, there is provided a two-output push button switch device comprising: a single push button switch; a casing of the push button switch;
Battery-operated type housed in the casing, the first and second
A two-output push-button switch having a control device having an output terminal, wherein when a battery serving as a power supply of the control device has a voltage equal to or higher than a predetermined voltage, the push-button switch is connected to the first output terminal. The contact output is output immediately when is pressed, and the contact output is output when the push button switch is pressed to the second output terminal for a certain period of time. In the case of lowering, the contact output is output to the first and second output terminals immediately when the push button switch is pressed.

Here, in the two-output push button switch device according to the present invention, the main power source of the control device is turned on when the push button switch is pressed to perform power saving processing of the battery. Is preferred. Further, in the two-output push button switch device according to the present invention, the first output terminal is connected to an operation remote controller of a television operable with one input, and the second output terminal is connected to a nurse call. Preferably. In addition, a chime call (calling device) for calling a caregiver at home or nearby is connected to the first output terminal, and an emergency notification device or the like for calling the caregiver via a telephone line is connected to the second output terminal. Is also good.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 is a schematic block diagram of a two-output push button switch device according to an embodiment of the present invention, FIG. 2 is a simplified explanatory diagram of a contact output of the two-output push button switch device, and FIG. FIG. 4 and FIG. 5 are explanatory diagrams of the output operation of the push button switch device, and FIGS.

As shown in FIG. 1, a two-output push-button switch device 10 according to an embodiment of the present invention includes a single push-button switch 11 and first and second push-button switches 11 connected thereto.
Output terminals CH1, CH2, a battery 12 serving as a power supply,
It has a latching relay LR driven by the battery replacement detection circuit 13 and the battery voltage drop detection circuit 14, a relay NR driven by the timer circuit 15, and a casing 15a for accommodating these relays (see FIGS. 4 and 5). I have. Hereinafter, these will be described in detail. FIG.
, LRS denotes a set-side coil of the latching relay LR, LRR denotes a reset-side coil of the latching relay LR, and R1 and R2 denote the latching relay L.
R indicates a reset-side contact, S1 and S2 indicate set-side contacts of the latching relay LR, NRC indicates a relay NR coil, and TD indicates a relay NR contact (norma open). Also, the first and second output terminals CH1 and CH2, the battery 12 serving as a power supply, the latching relay LR driven by the battery replacement detection circuit 13 and the battery voltage drop detection circuit 14, and the timer circuit 15 drive. A control device includes the relay NR.

The push button switch 11 is a push button switch having a diameter of about 5 to 15 cm as shown in FIGS. 1 and 2, and has two contacts 16 and 17 therein.
Is directly connected to the first output terminal CH1. The contact 16 is directly connected to the second output terminal CH2 via the reset contacts R1 and R2 of the latching relay LR. Set contact S of latching relay LR
The positive terminal of the battery 12 is connected to 1 and S2, and power is supplied to the timer circuit 15 and the battery voltage drop detection circuit 14 via the contact 16 of the push button switch 11. A high resistance 18 (for example, 51 kΩ) and a high resistance 19 connected in series are connected to the power supply side of the battery 12.
(For example, 510 kΩ) is output to the battery voltage drop detection circuit 14.

Therefore, when a new battery (006P) 12 is set in this two-output push button switch device 10,
The battery replacement detection circuit 13 is activated, and the latching relay LR is activated.
Is energized for a short time to set the contacts of the latching relay LR to the S1 and S2 sides.
Since the latching relay LR stores the state once energized, the current does not flow after energizing for a short time. Such electronic circuits include, for example,
By connecting a resistor and a capacitor in series to the power supply, inputting the connection point to the base of the transistor, and connecting the coil LRS of the latching relay LR to the collector side, the transistor conducts while the capacitor is charged. The coil LRS of the latching relay LR is turned on. When the charging of the capacitor is completed, a transistor that becomes non-conductive can be used.

When the push button switch 11 is pressed in this state, a contact output is generated at the first output terminal CH1. Then, since power is supplied to the timer circuit 15, the coil NRC of the relay NR is energized when a predetermined time t1 (for example, 5 seconds) elapses, the contact TD is closed, and a contact output is generated at the second output terminal CH2. . Note that the timer circuit 15
Since power is supplied only when the push button switch 11 is turned on, there is no power consumption when the push button switch 11 is turned off.

When the push button switch 11 is operated,
The battery voltage drop detection circuit 14 is also energized. This has a Zener diode for generating a reference voltage VS (5.1 V) inside, and this voltage is connected to the high resistances 18 and 19 described above.
When the voltage VD is lower than the reference voltage VS, the coil LRR on the reset side of the latching relay LR is energized. As a result, the latching relay LR is reset.
R2 is connected, and the contact output of the push button switch 11 is directly generated at the second output terminal CH2.

FIGS. 2 and 3 illustrate this situation in a simple manner. When the push button switch 11 is pressed, the contact 16
17 is closed and the main power supply of the control device is turned on. At this time,
The output of the first output terminal CH1 is immediately turned on.
When the voltage of the battery 12 is higher than the reference voltage, the timer circuit 15 operates the second second output terminal CH2 to turn on the contact TD of the relay NR after a predetermined time, and this output is transmitted to the second output terminal CH2. When the voltage of the battery 12 is lower than the reference voltage, the coil LRR on the reset side of the latching relay LR is activated, so that the output of the contact 16 is kept at the second level.
Is output to the output terminal CH2. When an old battery is replaced with a new battery 12, the battery replacement detection circuit 13 is activated, so that the latching relay LR is set to the set side again. When the push button switch 11 is not operated, the battery 12
Is discharged through the high resistances 18 and 19, but is extremely small (about 11 μA), so that power saving processing can be performed with little consumption.

FIG. 4 shows an example of the use of the two-output push-button switch device 10. The two-output push-button switch device 10 can be operated by one person using the connection cord 20 at the first output terminal CH1. An operation remote controller 21 (for example, “TV / video remote (product name)” of AbleNet Inc.) is connected to the television having the structure. The second output terminal CH2
Is connected to the connection port of the nurse call using the connection cord 22. Thus, when the push button switch 11 is sequentially pressed once each time in a short time operation, only the operation remote controller 21 is operated, the power of the television 23 is turned on, the channel is sequentially switched, and the power is turned off. When the push button switch 11 is pressed for a predetermined time or more, the second output terminal CH2 is turned on to activate a nurse call. When the battery 12 of the two-output push-button switch device 10 is exhausted, the first and second output terminals CH1 and CH2 are turned on by pressing the push-button switch 11 by the operation described above, so that the nurse call is immediately activated. Will do. The battery returns to its original state when replaced.

FIG. 5 shows another example of use of the two-output push-button switch device 10. The first output terminal CH1
Is connected to the wireless chime call 27 using the connection cord 26, and the connection cord 28 is connected to the second output terminal CH2.
And a simple emergency notification device 29 for contacting a caregiver or the like using a telephone line. Thus, when the push button switch 11 is pressed for a short time, the wireless chime call 27 is activated to call a person living in the house. Will contact you. When the battery 12 is exhausted, pressing the push button switch 11 activates the simple emergency notification device 29.

[0015]

As is apparent from the above description, the first and second output terminals of the two-output push-button switch device according to the first to third aspects are determined by the length of the pressing time of one push-button switch. Since two outputs are generated, two operations can be performed by selectively using the two outputs. Further, when the battery is almost exhausted, it can be detected and notified to the outside by operating the push button switch, so that the reliability is further improved. In particular, in the two-output push button switch device according to claim 2,
Since the battery is subjected to power saving, it can be used for a long time. In the two-output push button switch device according to the third aspect, the first output terminal is connected to a remote control for operating a television, and the second output terminal is connected to a nurse call. The operation of the television can be performed by the short-time operation, and the nurse call can be performed by the long-time operation of the push button switch.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of a two-output push button switch device according to an embodiment of the present invention.

FIG. 2 is a simplified explanatory diagram of a contact output of the same two-output push button switch device.

FIG. 3 is an output operation diagram of the second output push button switch device.

FIG. 4 is an explanatory view of use of the same two-output push button switch device.

FIG. 5 is another use explanatory view of the same two-output push button switch device.

[Explanation of symbols]

10: 2 output push button switch device, 11: push button switch, 12: battery, 13: battery replacement detection circuit, 1
4: Battery voltage drop detection circuit, 15: Timer circuit, 15
a: Casing, 16, 17: contact, 18, 19: high resistance, 20: connection cord, 21: operation remote control, 22: connection cord, 23: television, 26: connection cord, 27: wireless chime call, 28: connection Code, 29: Simple emergency call device

Claims (3)

(57) [Claims] 1. A two-output push switch having a single push button switch, a casing of the push button switch, and a battery-operated control device housed in the casing and having first and second output terminals. A button switch, wherein when a battery serving as a power supply of the control device has a voltage equal to or higher than a predetermined value, a contact output is output immediately when the push button switch is pressed to the first output terminal, 2
When the push button switch is pressed to the output terminal for a certain period of time, a contact output is output, and when the battery serving as the power supply of the control device falls below a certain voltage, when the push button switch is pressed. A two-output push-button switch device, wherein a contact output is immediately output to the first and second output terminals. 2. The two-output push button switch device according to claim 1, wherein the main power source of the control device is turned on when the push button switch is pressed to perform power saving processing of the battery. A two-output push button switch device. 3. The two-output push-button switch device according to claim 1, wherein the first output terminal is connected to an operation remote controller of a television operable with one input, and the second output terminal is connected to the second output terminal. Is a two-output push button switch device to which a nurse call is connected.