JPH0346860A - Electric lock with built-in receiver/transmitter - Google Patents

Abstract

PURPOSE:To economize the cost required to purchase and attach an electric lock and an interphone separately of each other by incorporating a slave receiver/transmitter of a interphone into the escutcheon of a electric lock. CONSTITUTION:An electric lock operation board 3 like ten key buttons is arranged on the outer surface of an outer escuthceon 2 out of a pair of an inner escutcheon 1 and the outer escutcheon 2, and the slave receiver/transmitter of a pair of receivers/transmitters constituting the interphone is provided between inner and outer escutcheons 1 and 2. A case 5 of this slave receiver/ transmitter 4 has the flange part fixed to the inner surface of the outer escutcheon by a screw 6. A speaker 7 used as a microphone of the slave receiver/ transmitter 4 is incorporated in the case 5 and is attached to an aperture part 8 of the escutcheon while being directed to the outside.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to improvements in electric locks.

[Conventional technology]

As is well known, electric locks are unlocked by manually entering a PIN number using a so-called numeric keypad installed outside the room, or by reading a PIN code recorded on a magnetic card using a card league. It can also be unlocked by operating the unlock switch on the controller installed on the indoor side.

One of the major advantages of electric locks is that they can be unlocked remotely from the living room, etc., without the need for family members to go to the door when they return home.

[Problem to be solved by the invention]

However, in condominiums and public housing complexes built in the 1960s or earlier, only buzzers are installed at the door instead of so-called intercoms, so electric locks are installed at the door for safety and convenience. Even if equipped, it is difficult to identify visitors.

In addition, installing an intercom after installing an electric lock requires wiring twice, as new wiring must be installed after wiring for the electric lock, and it also spoils the beauty of the doorway.

Furthermore, the electric lock and intercom must be purchased and installed separately, which increases the cost. Incidentally, the above-mentioned inconveniences also occur in newly built houses.

SUMMARY OF THE INVENTION An object of the present invention is to provide an electric lock in which an intercom is integrated, thereby solving the above-mentioned disadvantages.

[Means to solve the problem]

In order to achieve the above object, the present invention incorporates one of a pair of handsets constituting an intercom in an escutcheon attached to the free edge of the door with the door in between, and the other handset is installed indoors, and one and the other handset are connected to each other by a conductive wire.

[For production]

The electric lock according to the present invention configured as described above operates an intercom according to a predetermined method on the outside of the doorway, communicates with the inside of the room, and notifies the user of coming home or visiting. Inside the room, the user confirms whether the person is returning home or visiting the room by talking through the intercom, and if it is determined that it is okay to open the door, the user operates the unlock switch on the controller of the electric lock in the room to unlock the electric lock.

〔Example〕

Hereinafter, embodiments of the invention will be described with reference to the accompanying drawings.

In FIG. 1, numeral 1 indicates the escutcheon on the inside of the lock chamber (hereinafter referred to as inside). By the way, an escutcheon is a decorative seat plate or case-like thing that is attached to the inside or outside of the door so as to sandwich the free edge of the door, and it is a member that holds operating members such as lock cases and knobs. But the first
The illustration of the lock case etc. is omitted in the figure.

Outer escution 2 paired with the inner escution 1 above
As shown in Fig. 2, an electric lock operation panel 3, such as a numeric keypad button, is provided on the outside of the unit. An electromagnetic actuator inside the lock case (not shown) operates to unlock the electric lock.

Between the inner and outer escutcheons 1.2 is a handset 4, which is one of a pair of handsets constituting the intercom.
(See Figure 3).

As shown in FIG. 1, the case 5 of the handset 4 has its flange portion secured to the inner surface of the outer escutcheon with screws 6. It goes without saying that the case 5 may also serve as a case for the control circuit of the electric lock.

Further, a speaker 7 (FIG. 3) of the handset 4 which also serves as a microphone is built into the case 5, and is mounted facing outward toward the opening 8 of the outer escutcheon shown in FIG. Furthermore, the intercom call button 9 is a momentary switch with one circuit and two contacts, and is attached to the outer escutcheon 4, so that when pressed, a ringing sound is produced by the base unit.

FIG. 3 is a block diagram of a publicly known press-to-talk type intercom, and the details of the AMPC expansion section are omitted.

A base unit 10, which is the other handset of the intercom, is installed in a living room or the like, and a handset 4 is housed in a case 2 inside an outer escutcheon 2, as shown in FIG.

The press-to-talk switch 12 is a two-circuit, two-contact momentary switch that is normally biased to the receive position.
When the switch is pressed during transmission, the circuit of the speaker 13 of the master unit is switched by the contact piece 12A, and the circuit of the slave unit speaker 7 is switched by the contact piece 12B.

The power switch 15 is a two-circuit, two-contact switch, and when on standby, both the contact piece 15A and the contact piece 15B are in contact with the lower contact point in the figure.

Further, the master unit 10 and the slave unit 4 are connected to each other by a pair of conducting wires 11°11. In addition, these conductors 11.1
1 is led out from the door to the door frame side through an energizing metal fitting described in, for example, Japanese Utility Model Publication No. 52-40301, together with a power line and a signal line (not shown) of the electric lock.

In the intercom shown in FIG. 3, when a visitor presses the call bonder 9, the power 16 is applied to the AMP 18, positive feedback is applied through the contact piece 15A of the power switch 15, and a ring tone is emitted from the speaker/microphone 13. Therefore, the person at home switches the power switch 15 from the standby position (the position with the contact at the bottom in the diagram) to the call position (the position with the contact at the top in the diagram). Therefore, the power supply 16 is applied directly to AMP (not via the call button 9), and at the same time, the circuit that was oscillating the ring tone is also turned off, and the intercom is placed in the receiving mode. When you want to check, press the press talk switch 12 activated on the receiving side.
When switched upward in FIG. 3 to enter the transmitting state, the microphone/speaker 13 acts as a microphone, is amplified by the AMP 18, and the voice of the person at home is emitted from the microphone/speaker 7 of the handset 4. The capacitor 17 is used to stop direct current from being applied to the microphone/speaker 7 during standby, and allows the audio signal to pass through.

[Other Examples]

Note that the present invention is not limited to the illustrated embodiment, and can be implemented with various modifications.

For example, in the above embodiment, the intercom installed in the electric lock escutcheon is of the so-called press-talk type, but this is a so-called one-handset simultaneous call amplification system as shown in Figure 4. The intercom, that is, the base unit 10 and the handset 4 are each equipped with a dedicated microphone 17 and speaker 18, and the microphone 17 and speaker 18 of the base unit 10 are always connected to the speaker 18 and microphone 17 of the handset 4, respectively. Of course, it is also possible to use an intercom in which the microphone and speaker of the base unit 10 are combined like a telephone receiver so that it can be handled with one hand.

In addition, a so-called auto-press-talk type intercom as shown in FIG.
It is also possible to adopt an intercom which is equipped with a dedicated microphone 17 and a speaker 18, and automatically switches transmission and reception between the base unit 10 and the handset 4 using the output signal of the microphone 17 as a trigger signal.

〔Effect of the invention〕

As is clear from the above description, the present invention incorporates one handset, which is a handset of the intercom, into the escutcheon of the electric lock. In the case of a building, it can be installed by simply replacing the lock with an electric lock, and in the case of a newly constructed building, the cost of purchasing and installing an electric lock and an intercom separately can be saved.

Furthermore, the electric lock and the intercom only need to be wired once, and since the intercom is covered with the escutcheon, the appearance of the doorway is improved, among other effects.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing the structure of the main parts of an electric lock with a built-in handset according to an embodiment of the present invention, Fig. 2 is an external perspective view of the outer escutcheon, and Fig. 3 is an example of the structure of an intercom. 4 and 5 are diagrams showing other configuration examples of the intercom. 1...Inner escutcheon, 2...Outer escutcheon, 4...Slave unit, 7, 13...Speaker that also serves as microphone,
9...Call button,]O...Base unit, 1]...Conductor, 12...Press talk switch, 17...Microphone, 18...Speaker. Part 2

Claims (1)

[Claims] 1. One of a pair of handsets constituting an intercom is built into the escutcheon, which is attached to the free edge of the door with the door in between, and the other handset is installed indoors. An electric lock with a built-in handset is characterized in that one handset and the other handset are connected to each other by a conductive wire. 2. The intercom according to claim 1, wherein the intercom is a press-talk type intercom having one and the other handsets each having a speaker that also serves as a microphone, and a switching device for switching transmission and reception of the pair of handsets. Electric lock with built-in handset. 3. In the intercom, one handset is equipped with a dedicated microphone and speaker, the other handset is equipped with a telephone receiver-like microphone and speaker, and the microphone and speaker of one handset are equipped with the microphone and speaker of the other. Claim 1: The intercom is a one-handset intercom that is always connected to a speaker and a microphone of a handset and is capable of simultaneous calls and amplification.
An electric lock with a built-in handset as described in . 4. In the intercom, one and the other handset are each equipped with a dedicated microphone and speaker, and the transmission and reception of the pair of handsets is automatically switched using the output signal of each microphone as a trigger signal. The electric lock with a built-in handset according to claim 1, which is an auto-press-talk type intercom provided with a voice activation switching device.