JPS5814764Y2 - door lock opening/closing device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a door locking/unlocking device that allows a door to be unlocked by tapping a keyboard with a fingertip or the like.

Conventionally, a key is generally required to open and close a door, and it is natural that if you forget to bring the key with you, you will not be able to open or close the lock. It was unexpectedly obstructive and bulky in a pocket or bag.

Further, the above-mentioned conventional locking device can be easily broken, and it is dangerous to leave the locking device unattended for a long period of time.

Therefore, the present invention has been made with attention to this point, and the instruction keys (
By pressing the switch), the lock can be opened and closed by driving the solenoid and sliding the lock pin, eliminating the need for a key, making it impossible to manufacture duplicate keys, and causing damage. This product provides an effective door lock opening/closing device especially in hotels and other places where locks have to be replaced at regular intervals. In a door lock opening/closing device that performs locking and unlocking operations by the action of a solenoid that responds to a signal generated by a memory circuit, the door is operated by a limit switch, a signal from the limit switch, and a signal from the memory circuit. A relay, a box, a locking pin of a lock slidably housed in the box, a spring that constantly biases the locking pin inward, and a locking pin controlled by the relay and connected to the lock via a link. A locking solenoid that pushes the pin outward; a locking device that keeps the lock pin locked; The device consists of a door lock opening/closing device that is equipped with an unlocking solenoid that pulls back the door.

Next, an example of implementation of the present invention will be described with reference to the drawings.

1 in the figure is the keyboard of the door lock opening/closing device according to the present invention. The keys act as switches that close circuits when tapped with a fingertip, and each key is connected to a memory circuit (microcomputer) 3 via a resistor 2.

This memory circuit 3 is designed to send a signal to a relay 4, which drives a solenoid, when a key corresponding to a pre-stored combination of numbers is pressed.

This relay 4 receives a signal from the memory circuit 3 via an OR gate 5 and a transistor 6.
This OR gate 5 is designed to also receive signals from the maximum limit switch 7 and minimum limit switch 8 that connect the solenoid, and is used to open and close the lock.
The polarity is changed depending on the direction of the solenoid's magnetic force.

Also, in Fig. 1, 9 is an IC that serves as an external memory and is a RAM.
10 is an LSI for controlling the relay.

Furthermore, as shown in FIG. 2, two solenoids are housed in the box 11 in the present invention, and one solenoid
2 is for locking, and when the pin 12a is ejected, the link mechanism 13 pushes out the lock pin 14 to the outside.

Furthermore, this lock pin 14 is connected to a coil spring 15.
When the pin 16a of the solenoid 16 is retracted, the locking tool 17 is disengaged from the lock pin 14, and the coil spring 15 retracts the lock pin 14 (unlocking).

The door lock opening/closing device according to the present invention is constructed as described above, and when using it, first input the memory key (for example, A) on the numeric keypad, then hit an arbitrary list of numbers. Then, by finally hitting the end key (for example, D), the data can be stored in the memory circuit.

In this case, specifically, it is preferable to use an asterisk or the like as the memorization key, and it is preferable that this asterisk key is always located inside the door, and that the cover is removed and the cover is removed when performing memorization work.

When this memorization is performed, the input signal is transmitted to a buzzer 18 and sounds for confirmation, and this buzzer 18 also sounds for confirmation when unlocking the lock.

Also, when you want to lock the door, it is automatically locked using a closing key (for example C) and an ending key (for example D), and of course you can use a general key to slide the lock pin It is also possible to do so.

Although the door lock opening/closing device according to the present invention uses a battery as a power source, it is naturally possible to use general alternating current and rectify it to operate, and in this case, in the event of a power outage, the battery will be immediately activated. It is possible to switch the power supply.

The door lock opening/closing device according to the present invention is constructed and used as described above.

Therefore, general keys are no longer necessary, and by changing the memorized numbers, it is possible to achieve the same effect as having an infinite number of locks, and the keyboard can be placed not only on the door but also in various places. By installing the door, you can open and close the door remotely.

In addition, general keys can also be used together, and their security is higher.

This invention is extremely convenient not only for general residences, but also for hotels, etc., where the number of residents changes frequently. This eliminates the need for periodic lock replacement work as in the past.

As described above, the present invention has many excellent advantages, and implementing the present invention has enormous practical value.

[Brief explanation of drawings]

The drawings show an example of the implementation of the present invention; Fig. 1 is a circuit diagram of a door locking/unclosing device according to the invention, Fig. 2 is a front view showing the locking mechanism, and Fig. 3 is a block diagram of the same. be. 1... Keyboard, 2... Resistor, 3.
...Memory circuit, 4...Relay, 5...
...OR gate, 6...transistor, 7.
...Maximum limit switch, 8...
・Minimum limit switch, 9...IC11
0...LSI. 11...Box, 12.16...Solenoid, 12a, 16a...Pin, 13
...Link mechanism, 14...Lock pin, 15...Coil spring, 17...
・Latching tool, 18...Buzzer

Claims (1)

[Scope of utility model registration request] A limit switch and a limit switch are used in a door locking/unlocking device that locks and unlocks a door by the action of a keyboard switch that provides information to a memory circuit, and a solenoid that responds to a signal generated by the memory circuit that receives this information. A relay operated by a signal from a switch and a signal from the memory circuit, a box, a lock pin of a lock slidably housed in the box, and a spring that constantly biases the lock pin inward. a locking solenoid that is controlled by the relay and pushes the lock pin outward via a link; a locking device that maintains the locked state of the lock pin; and a locking solenoid that is controlled by the relay and pushes the locking device outward. A door lock opening/closing device comprising an unlocking solenoid that releases the lock pin and pulls the lock pin back inward by the elasticity of a spring.