JPH0432914B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a remote control device for an electric lock that can unlock the electric lock from a remote location.

[Conventional technology]

As a remote control device that can open a door from a remote location, for example, a solenoid is used as an engaging member (attached to the frame side) on the receiver side that engages the latch of the door lock to maintain the locked state. It is known that the solenoid is configured to be changed from a fixed state to a displaceable state by the action of the solenoid, and a remote control switch is connected to the solenoid.

According to this, when the remote control switch is turned on and the solenoid is operated to make the engaging member movable, the latch will rotate the engaging member and keep it in the engaged state even if the door is pulled while it is still locked. You can solve the problem and open the door.

Furthermore, it is known that an electric lock that is unlocked by an unlocking signal is attached to the door, and a remote control switch is connected to the electric lock.

[Problem that the invention seeks to solve]

However, according to the former device, the engaging member must be kept in a fixed state except when remotely controlled, so that the lock unlocks in the normal unlocked state, and for this reason, the structure of the money receiver has to be changed. The complexity caused problems in terms of workability, durability, reliability, etc.

Furthermore, with the latter device, in order to connect the remote control switch to the electric lock, the cord must be wired with slack so that it does not interfere with the door opening/closing operation, and the cord is wired loose every time the door is opened and closed. It oscillated, and as a result, when used for a long period of time, the cord could break, resulting in poor electrical conduction, which caused problems in terms of durability and reliability. Also, when using a power-carrying hinge instead of a slack cord, if used for a long period of time, the power supply would fail due to rust, etc., and there were similar problems in terms of durability and reliability.

The purpose of the present invention is to solve the problems of the conventional remote control device as described above, and to simplify the structure of the receiver, prevent the cord from swinging when opened and closed, and improve durability and The present invention provides a highly reliable remote control device for electric locks.

[Means for solving problems]

In order to achieve the above object, the present invention includes a frame close to the end of the door that includes a power source, a light emitting section that emits light by applying a current, and an electrical connection between the light emitting section and the power source section. The door is provided with an electric lock that locks and unlocks the door by operating the remote control switch, and an electric lock that receives light from the light emitting section to send an unlocking signal. a light receiving section that outputs the signal to the electric lock, electrically connecting the electric lock and the light receiving section when the door is closed, and connecting the electric lock and the light receiving section electrically when the door is open. It is characterized by the installation of a door opening/closing switch that shuts the door off.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an example of a remote control device for an electric lock of the present invention. In the figure, numeral 1 is a frame, 2 is a door, and 3 is an electric lock.

A receiver 4 is arranged on the frame 1, and the receiver 4
An engaging recess 6 into which the latch 5 of the electric lock 3 engages, a light emitting portion 7 consisting of an infrared light emitting diode, and a magnet 8 are provided. A remote control switch section 10 is connected to the light emitting section 7 via a cord 9. Since the light emitting part 7 is fixed to the frame 1 side, this cord 9 does not need to be slackened so that it does not interfere with the opening and closing of the door 2.
It can be fixed to the wall and wired.

An electric lock 3 is disposed on the door 2, and a light receiving section 12 consisting of the above-mentioned latch 5, reed switch 11, and photodiode is provided on the end face of the door 2 facing the receiver 4.
is installed. The electric lock 3 is unlocked by a predetermined unlocking operation, and is unlocked when an unlocking signal from the light receiving section 12 is input. When the door 2 is closed, the reed switch 11 faces the magnet 8,
Further, the photodiode 12 faces the light emitting section 7 .

When the door 2 is closed, the reed switch 11 faces the magnet 8 and is turned on, connecting the light receiving section 12 and the electric lock 3. When the door 2 is open, the reed switch 11 turns on.
The reed switch 11 and the magnet 8 constitute a door opening/closing detection switch. This door opening/closing detection switch is for locking and unlocking only when the door is closed, and prevents the electric lock from malfunctioning due to the light receiving section 12 receiving light from the outside when the door is open. It's for a reason.

FIG. 2 shows an electrical circuit diagram of the remote control device.

The light receiving section 12, the reed switch 11, and the electric lock 3 are connected in series to form a light receiving side circuit, and the light emitting section 7, the power source 13 of the remote control switch section 10, and the resistor 14 are connected in series to form a light emitting side circuit. is configured. Note that the power source 13 and the resistor 14 are installed inside the case of the remote control switch section 10.

When the electric lock 3 is in the locked state, the reed switch 11 is turned on by the magnet 8, so the light receiving side circuit becomes a closed circuit (the light receiving section 12 is in an operable state). In this closed state, if the presence of a visitor is confirmed using an interphone or the like, the remote control switch section 10 is turned on. As a result, the light emitting section 7
emits infrared rays, and the light receiving section 12 receives this infrared rays and outputs an unlocking signal to the electric lock 3, so that the electric lock 3 is unlocked.

In the above embodiment, the magnet 8 and the reed switch 11 are used as the door opening/closing detector, but as shown in FIG. Fixed contact pieces 16 and 17 that move toward and away from each other may be used. In this case, when the door 2 is closed, the movable contact piece 15 moves to the spring 18.
The light receiving portion 12 and the electric lock 3 are connected by retreating against the elastic force of the electric lock 3 and coming into contact with the fixed contact pieces 16 and 17 (see the two-dot chain line in FIG. 3). Furthermore, when the door 2 opens, the movable contact piece 15 moves forward due to the elastic force of the spring 18 and separates from the fixed contact pieces 16 and 17, cutting off the connection between the light receiving part 12 and the electric lock 3 (see the solid line in the figure). ).

Furthermore, a microcomputer may be provided in each of the light emitting section 7 and the light receiving section 12 to add a unique signal to the infrared rays to prevent malfunctions caused by other light.

Moreover, instead of providing the light emitting part 7 on the receiver 4, it is provided in the case of the remote control switch part 10, and instead of providing the light receiving part 12 on the end face of the door 2 facing the receiver 4, the light receiving part 7 is provided on the inner surface (inside the room of the door 2). (on the facing side)
If the electric lock 3 is unlocked by irradiating the light receiving part 12 of the door 2 with infrared rays from inside the room, the code 9 can be omitted.

〔Effect of the invention〕

As explained above, according to the present invention, the light emitting section and magnet provided on the frame side are connected via a cord to a remote control switch section equipped with a remote switch for operating an unlock signal, so that the door can be opened and closed. The cord does not move even when the Therefore, the cord will not be worn out or broken.

Furthermore, since a reed switch is provided on the electric lock side at a position opposite to the magnet when the door is closed, the electric lock can be energized when the door is closed.

In addition, a light receiving part is installed on the electric lock side in a position opposite to the light emitting part, so that the electric lock can be unlocked by operating the remote switch in the remote control switch part, so you can use the electric light without going to the door. In addition to being able to unlock the lock, there is no need to use cords or power hinges, durability and reliability are improved, and the engaging member of the receiver is configured to be displaceable using a solenoid. It does not require any additional work, has a simple structure, and is easy to construct.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a perspective view, FIG. 2 is a circuit diagram, and FIG. 3 is an explanatory diagram showing another embodiment of the door opening/closing detector. 1... Frame, 2... Door, 3... Electric lock, 7...
Light emitting section (infrared light emitting diode), 12... Light receiving section, (photodiode), 8, 11, 15 to 17...
...Door opening/closing detector, 10...Remote control switch section.

Claims (1)

[Scope of Claims] 1. A frame close to the end of the door includes: a power source; a light emitting section that emits light by applying a current; and a device that electrically connects or disconnects the light emitting section and the power source section. The door is provided with an electric lock that locks and unlocks the door by operating the remote control switch, and an electric lock that receives light from the light emitting section and sends an unlocking signal to the electric lock. a light receiving section that outputs an output to the light receiving section; and electrically connecting the electric lock and the light receiving section when the door is closed, and electrically disconnecting the electric lock and the light receiving section when the door is open. A remote control device for an electric lock, characterized by having a door opening/closing switch and the following.