JPH0444773Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is a lock confirmation device, specifically, for example, when the entrance door of an apartment is closed and immediately locked, the device confirms that the door is completely locked. This invention relates to a lock confirmation device that notifies a person.

[Conventional technology]

For example, in modern apartments and housing complexes, in addition to simply attaching buzzers to the entrance doors, there are also intercoms that allow calls between inside and outside to check for visitors, and even small TVs. I've even started installing cameras.

On the other hand, a lock used for an entrance/exit door of an apartment or the like is generally constructed as shown in FIG.

That is, the carved lock 100 embedded in the side of the entrance door as shown in the figure has an elongated rectangle on the front side of a relatively thin rectangular parallelepiped lock box 101 to be attached to the side of the door with wood screws. A locking surface 102 is attached thereto.

A blank tightening bolt 104 and a final tightening bolt 105 are installed approximately in the center of this lock surface 102, and the blank tightening bolt 104 can be used to attach a knob attached to the outside or inside of a house, etc. It can be rotated to unlock and open/close the door. In other words, the blank bolt is used to prevent the door from flapping due to wind, etc., and is not used to fully lock the door.

On the other hand, the main tightening bolt 105 can be locked by inserting a key into the keyhole 103 installed near the outer knob, or by turning the inner key installed near the inner knob. It was designed to do so. When the main tightening bolt 105 is driven and locked, it cannot be unlocked by simply turning the knob; if it is from the outside, it must be unlocked using a predetermined key, or from the inside. If so, you will have to reverse the key mentioned above to unlock it.

[Problem to be solved] By the way, the interphon device mentioned above is naturally connected to a power source such as a commercial power source.
Moreover, this power is constantly supplied.

Therefore, even if the resident of an apartment for a single person goes on a long business trip for work, the interphon device remains powered on. As a result, electricity was wasted.

On the other hand, when going out in a conventional apartment, etc., the door is locked from the outside, but in order to check whether it is securely locked, after locking the door, turn the knob vigorously from side to side. I made sure to make sure the lock was locked.

Turning the knob left and right like this to check if it's locked is not very smart, and sometimes I accidentally forget to check if it's locked.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention is capable of securing a locked state by driving the intercom for making calls inside and outside of a house, etc. connected to a power source such as a commercial power supply, and the main tightening bolts separately from inside and outside of the house, etc. In a gate or exit door having a lock as described above,
and a timer for continuing power supply to the intercom for internal and external calls for a predetermined period of time after the detection means detects the locked state, and thereafter stopping the power supply; The device is equipped with means for issuing a warning or an alarm to the outside via the above-mentioned intercom for internal and external communication only while the user is away.

[Effect]

Since the lock confirmation device of the present invention is configured as described above, it detects when a resident locks the door from the outside when going out, issues a warning or warning for a certain period of time, and turns on the interface after a certain period of time has elapsed. This is designed to stop the power supply to the device.

Therefore, there is no need to move the knob vigorously to confirm the locked state, and when the door is locked from the outside, the power supply to the interfon device is stopped, so there is no need to waste electricity. There is no need to put it away.

〔Example〕

Hereinafter, the lock confirmation device of this invention will be explained based on the illustrated embodiment.

Fig. 1 is a system configuration diagram showing the lock confirmation device of the present invention, Fig. 2 is an electric circuit diagram showing a timer circuit used in the lock confirmation device of the present invention, and Fig. 3 is a system configuration diagram showing the lock confirmation device of the present invention. This is a flowchart showing the operation.

As shown in Fig. 1, various types of lighting equipment 2, home appliances such as an electric refrigerator 3, etc. are connected in parallel to a power source 1 such as a commercial power source, and are further connected to a power source 1, such as a commercial power source, through a break contact a of a relay 8, which will be described below. An interphone device 4 is connected to the terminal.

An external speaker 5a is attached to the interphon device 4, which serves both as a microphone for taking in voices from outside the door and as a speaker for transmitting voices from inside the door to the outside. Further, on the indoor side, an inner speaker 5b which also functions as a microphone and a speaker is installed.

Furthermore, a buzzer 4a that starts sounding when a contact point 6b linked to an external key, which will be described below, is turned on is installed in the interphonic device 4, and the alarm sound emitted by the buzzer 4a is the same as that described above. The signal is transmitted to the outside from the external speaker 5a.

On the other hand, the timer circuit is constructed as shown in FIG. That is, one end of a contact 6a that is linked to the above-mentioned external key is connected to the DC power supply +V, and the other end of this contact 6a is connected to a timer circuit that detects, for example, 10 seconds after this contact 6a is turned on. 7
Further, the output terminal of this timer circuit 7 is connected to a relay 8 which operates after the above-mentioned 10 seconds has elapsed and turns off the break contact a. If a magnetic latching relay is used as the relay 8, for example, once it is activated, it can continue to operate even in the absence of current.

The carved lock attached to the door is the same as the one shown in FIG. Contacts 6a and 6b shown in FIG. 2 are attached, which turn on when the key is turned to a completely locked state. Note that the contacts 6a and 6b are designed so that they will not turn on even if the inner key is turned to lock the door.

Next, the operation of the lock confirmation device configured as described above will be explained based on FIG. 3.

First, in normal cases, contact a is on as shown in FIG. 1, and at this time, communication between the inside and the outside can be made via the outside speaker 5a and the inside speaker 5b of the interphone device 4. It has become a state of affairs. That is, even if the door is locked with the internal key, the contact 6a remains off, so the relay 8 does not operate, and as a result, the contact a remains on, so interphone calls are possible.

In this state, the resident of the apartment tries to go out, inserts the key into the keyhole 103 (see FIG. 4), and locks the room.

In this case, since the lock is applied from the outside, the contact 6a shown in FIG. 2 is turned on, and the timer circuit 7
starts working.

On the other hand, at the same time that the contact 6a is turned on, the contact 6b is turned on.
(See Figure 1) is also turned on, which is also transmitted to the interphonic device 4, and the buzzer 4a starts sounding.
The alarm sounds only for 10 seconds set by the timer circuit 7, and an alarm sound is sent to the person outside the room via the external speaker 5a.

Then, when the above-mentioned 10 seconds have elapsed, the timer circuit 7 is activated and the relay 8 is activated.

Then, the contact a of the relay 8 shown in FIG. 1 is broken, and the power supply to the interphon device 4 is stopped. Therefore, even if the resident of the apartment is away from the room for a long time, no power is supplied to the interphon device 4, so no power is wasted. In other words, since the relay 8 uses a type of relay that continues to operate even when there is no current, power consumption is zero.

In addition, as mentioned above, although the power supply to the interphone device 4 is stopped, the power supply to other types of lighting 2, electric refrigerator 3, etc. is maintained as it is, so the food stored in the refrigerator etc. can be saved as is.

Furthermore, when the resident of the apartment returns from going out, he inserts the key into the keyhole 103 from outside and unlocks the door, so that power is immediately supplied to the interphone device 4 and it becomes possible to make an interphone call again.

In the above embodiment, a buzzer is shown as a means of warning, but for example, a red LED (light emitting diode) is generally attached to the external speaker of an interfon to indicate that it is ready for operation. When the contact 6a linked to the external key is turned on, the red LED may be made to blink.

〔effect〕

According to the present invention, when a resident of an apartment goes out, the power supply to the interphon device is stopped, so not only is there no need for wasted power consumption, but the locked state is also notified by an alarm sound, etc. Since you can notify people outside the door, you don't have to constantly check the lock status like in the past.

[Brief explanation of drawings]

FIG. 1 is a system configuration diagram of the lock confirmation device of the present invention, FIG. 2 is a diagram showing a timer circuit used in the lock confirmation device of the present invention, and FIG. 3 is a flowchart showing the operation of the lock confirmation device of the present invention. FIG. 4 is a perspective view showing a conventional carved lock. 1...Power supply, 4...Interface device, 4a
...Buzzer, 5a...Outer speaker, 5b...Inner speaker, 6a, 6b...Contacts linked to external key, 7
...Timer circuit, 100 ... Engraved lock, 103
...Keyhole, 105...Final tightening bolt.

Claims (1)

[Scope of claim for utility model registration] An interphone for making calls inside and outside a house, etc. connected to a power source such as a commercial power source, and a lock that can secure the locked state by driving the main tightening bolt separately from inside and outside the house, etc. means for detecting the locked state of the final tightening bolt from the outside of the gate or exit door having the following; and after the detecting means detects the locked state, continuing power supply to the intercom for internal and external calls for a predetermined period of time; and a means for issuing a warning or an alarm to the outside via the above-mentioned intercom for internal and external calls only while the time limit means is on, and after that, the power supply is stopped. A lock confirmation device featuring: