JPH038986A - Robbery preventor for building - Google Patents

Abstract

PURPOSE:To prevent wrong unlocking of key by a method in which when a door key or the other is inserted into a cylinder lock, a coupling piece is fitted into a recession leading from the outside of an outer cylinder to the surface of an inner cylinder to prevent the rotation of the inner cylinder. CONSTITUTION:A sensor 6 to detect the fact that a door key 200 or the other is inserted into a cylinder lock is provided near the cylinder lock, and a recession 50 leading from the outside of an outer cylinder 1 to the surface of an inner cylinder 2 is also provided. A coupling mechanism 70 with an inward energized coupling piece 71 to fit into or come out the recession 50 is provided to the corresponding place of the recession 50. When a detection signal is sent out from the sensor 6, the drive part 72 of the mechanism 70 is operated to fit the piece 71 into the recession 50 and also to prevent the rotation and unlocking of the inner cylinder 2. Also, by setting the sensor 6 to OFF previously, proper unlocking can be permitted.

Description

Detailed Description of the Invention (a) Industrial Application Field The present invention is applicable to apartments, warehouses, houses, etc., as well as entrances and exits (doors, etc.) of buildings such as storerooms and eaves storages, windows, and doors of rooms. This invention relates to an anti-theft device for a building that can be removed in case of theft by removing the lock.

(b) Conventional Technology Entrances and exits, windows, and room doors of buildings such as condominiums, warehouses, and houses are provided with locks for security purposes.

However, these locks do not provide sufficient security for crime, and when the lock is opened or destroyed with a counterfeit key or screwdriver while going out or sleeping, not only the money and goods inside the building but also the Your receipt card or cash card may be stolen and used for a second crime, or
There are many cases in which personal injury is caused, and recently crimes have become more violent, and various measures are being considered to deal with this.

For this reason, several alarm devices (anti-theft devices) are listed below.
is proposed.

That is, in a lock configured such that the locking tool engages with the locking groove to prevent rotation and lock, the locking portion of the locking pawl and the locking groove, or the locking portion and the cylinder. The lock is characterized in that a switch is provided at the tip of the outer cylinder, and when a key other than a regular key is inserted into the keyhole of the lock, the switch is turned on and the alarm is activated. Publication number 60-72864).

(c) Problems to be solved by the invention However, this device has an extremely complicated structure and is expensive, and even if a normal key is inserted into the keyhole, the switch inside the key cannot be touched. There is a risk that the alarm will be activated and an alarm will be issued.In other words, the alarm may be triggered even by the building's residents or the building's manager.Furthermore, there is a risk of malfunction and lack of long-term stability, making it impractical. There are challenges.

In view of these problems with conventional theft prevention technology, the present invention has been developed to prevent thieves from opening entrances and exits (doors, etc.), windows, or room doors of buildings such as apartments, warehouses, and houses, as well as storerooms and storage under the eaves. If someone attempts to unlock the lock, the system detects the action and prevents the inner cylinder from rotating, making it impossible to unlock the lock. The person receiving the lock (hereinafter referred to as the resident of the building) can open the lock by turning off the sensor inside the door cylinder lock and then inserting a door key or other object into the door cylinder lock. To provide an anti-theft device for a building, which has a simple structure, does not malfunction, and has excellent long-term stability.

(d) Means for Solving the Problems In order to achieve the above object, the anti-theft device for buildings of the present invention is an anti-theft device for buildings such as apartments, warehouses, and houses, and the anti-theft device in the anti-theft device includes a cylinder in the anti-theft device. A sensor for detecting the insertion of a door key or other object into the cylinder lock is provided near the lock, and a recess is provided that communicates from the outside of the outer cylinder to at least the surface of the inner cylinder. For those who
A locking mechanism is provided at a location corresponding to the recess, and the locking mechanism is provided with a locking piece that is biased inwardly and is removably fitted into the recess, while the locking mechanism is provided with a locking piece that is biased inward toward the outside of the cylinder lock. , a drive unit is provided that causes the locking piece to fit into the recess by sensing an output signal from the sensor, and when the locking piece fits into the recess, rotation of the inner cylinder and unlocking are performed. It is characterized by preventing

That is, the anti-theft device for buildings of the present invention is attached to entrances and exits (doors, etc.), windows, and room doors of buildings such as apartments, warehouses, and houses, as well as storerooms and under-eaves storage, and is attached to doorways, etc., of buildings such as apartments, warehouses, and houses. When someone attempts to unlock a lock, the lock detects this action and prevents the inner cylinder from rotating, making it impossible for the key to be unlocked, thereby preventing theft of money and other items in the building and personal injury. It is for.

By the way, generally, when opening a cylinder lock such as a door with a counterfeit key, the structural key is inserted into the key slot of the cylinder lock and the inner cylinder is rotated to unlock it.
It is not easy to open the lock using a structural key, but after inserting this imitation key and before unlocking, a sensor detects the lock, and a recess is used to connect the locking piece from the outside of the outer cylinder to at least the surface of the inner cylinder. By fitting into the inner cylinder, the inner cylinder is prevented from rotating and being unlocked.

The cylinder locks used in the present invention include condominiums,
In addition to warehouses and houses, it is attached to entrances and exits (doors, etc.), windows, and room doors of buildings such as storerooms and eaves storage, and is composed of an outer cylinder and an inner cylinder. However, it is not particularly limited.

This 22777 tablet is provided with a recess that communicates from the outside of the outer cylinder to at least the surface of the inner cylinder.

Further, the sensor used in the present invention is particularly limited as long as it can be installed near the cylinder lock and can detect the insertion of a door key or other object into the cylinder lock. For example, an optical sensor having a light-emitting element and a light-receiving element, a transmitting element for ultrasonic waves or radio waves and its receiving element, or a transmitting element for light, ultrasonic waves or radio waves, and a sensing element that senses disturbances thereof, etc. Examples include:

Then, this sensor detects that a door key or other object is inserted into the cylinder lock, and by sensing the output signal from the sensor, drives a drive section to be described later, and by driving the drive section, Rotation of the inner cylinder is achieved by fitting the locking piece in the locking mechanism into the recess.
It is designed to prevent unlocking.

Incidentally, the locking mechanism is provided with a locking piece that is removably fitted into the recess and biased inward, but the locking piece is configured to protrude when driven by the drive unit. There is.

This locking mechanism is provided on the outside of the cylinder lock, particularly at a location corresponding to the recess of the cylinder lock.

The driving part is not particularly limited as long as the driving part causes the locking piece to protrude, and specific examples thereof include a cam mechanism, a magnet, and the like.

In the anti-theft device for a building according to claim 2 of the present application,
A recess in the cylinder lock is provided to reach from the outside of the outer cylinder to the center of the inner cylinder, and upon sensing that the tip of a door key or other object is inserted into the cylinder lock, a locking piece is inserted into the recess. By fitting,
Since it becomes impossible to completely insert the door key, etc., it is possible to prevent theft from occurring.

In the anti-theft device for a building according to claim 3 of the present application,
Since the drive section is provided in the locking mechanism, this device is compact and extremely easy to handle, such as when attached to a door or the like.

(e) Operation The anti-theft device for a building according to the present invention has the above-mentioned gutter, and when a resident of the building closes the door of the building, locks the door, and leaves the building, the sensor is set to the ON state. do. Therefore, when a thief inserts a foreign object into the cylinder lock of a building, a sensor detects this abnormality, and the drive unit is driven based on the output signal from the sensor to fit the locking piece in the locking mechanism into the recess of the cylinder lock. This prevents the inner cylinder of the cylinder lock from rotating and prevents the cylinder lock from being unlocked, or prevents the insertion of counterfeit keys into the inner cylinder of the cylinder lock. This has the effect of preventing theft.

On the other hand, when residents of a building open a building door, etc., they first turn off the sensor, that is, prevent the signal from being transmitted to the drive unit, and thereby release the drive unit. They can then insert a door key or other object into the ring lock themselves and safely unlock it.

8 (f) Examples Hereinafter, the present invention will be explained in detail based on Examples, but the present invention is not limited thereto.

FIG. 1 is a perspective view of a door cylinder lock of an embodiment of the anti-theft device for a building according to the present invention, and FIG. 2 is a schematic cross-sectional view of the door cylinder lock.

The door cylinder lock 100 consists of a cylindrical outer cylinder 1 and an inner cylinder 2 mounted inside the outer cylinder 1.
The inner cylinder 2 is rotatably housed and has a flat key insertion opening 3 in the center, into which a door key 200 can be freely inserted and removed.

Further, as shown in FIGS. 2 and 3, the outer cylinder 1 is provided with holes 4, 4, and the father orientation cylinder 2 is provided with holes 5, 5, respectively. 5 and 5 are configured to communicate with each other in a state where the door key 200 is not inserted into the inner cylinder 2 to form a through hole X.

That is, unless the door key 200 is inserted and turned, the inner cylinder 2 will not move due to the urging force of the spring (not shown).
The outer cylinder 1 is always located at a predetermined location, and when the inner cylinder 2 is located at the predetermined location, the holes 4, 4
．． 5, 5 are arranged in a line with each other to form a through hole X.

Alternatively, as shown in FIG. 4, the door cylinder lock 100 may be provided with a communication hole X1 that communicates with the key insertion port 3 from one side thereof.

Further, in the vicinity of the holes 4, 4 of the outer cylinder 1, that is, on the outside of the outer cylinder 1, as shown in FIGS. 1 to 3,
A sensor 6 is attached to the door cylinder lock 100 to detect when a door key 200 or other object is inserted.

In this case, the sensor 6 is an optical sensor having a light-emitting element and a light-receiving element, but in addition to this, a transmitting element such as an ultrasonic wave or a radio wave and its receiving element are also used.

This sensor 6 will be explained in detail below.

To explain in detail the case of an optical sensor among the above-mentioned sensors 6, the optical sensor includes a light emitting diode 61 and a 7-ototransistor 62.

That is, as shown in FIGS. 1 to 3, the through hole X of the door cylinder lock 100 is provided with a light emitting diode 61 on the outside of the negative side thereof, and outputs its output signal on the outside of the other side. A sensing transducer 62 is provided.

Therefore, when the through hole X is formed, the light emitted from the light emitting diode 1 passes through the through hole X and enters the 7-hole transistor 62.

Further, as the sensor 6, as shown in FIG. 4, the door cylinder lock 100 is provided with a communication hole X1 that communicates with the key insertion port 3 from one side thereof. , there is a door key 200 inside the door cylinder lock 100.
Alternatively, a sensor 6 (63) may be attached to detect the insertion of another object.

This sensor 6 (63) includes an output part (not shown) that emits an output signal, and a sensing part (not shown) that senses a reflected signal that is reflected when this output signal hits a door key 200 etc. inserted in the door cylinder lock 100. (not shown). Then, insert the door key 20 from the key insertion port 3.
By inserting 0, etc., the output signal from the output section is reflected by hitting the door key 200, etc., and the sensing section senses this reflected signal, turning on the sensor 6 (63) and emitting an output signal. has been done.

In this case, it is preferable to use a sensor that detects disturbances in the reflected signal, since the reflected signal from the inner wall of the door cylinder lock 100 and the reflected signal from the door key 200 etc. can be easily detected, thereby eliminating malfunctions. .

By the way, the sensor 6 used here is not particularly limited as long as the output signal hits the door key 200 etc. and can detect the disturbance or reflected signal of the reflected signal. The sensor 6 includes a transmitting element (output section) for emitting radio waves, etc., and a sensing element (sensing section) for sensing disturbances thereof, reflected signals, and the like.

In the above anti-theft device, the door cylinder 2 lock 100 is provided with a recess 50 communicating from the outside of the outer cylinder 1 to at least the surface of the inner cylinder 2, as shown in FIGS. A locking mechanism 70 is provided on the outside of the lock 100 at a location corresponding to the recess 50, and the locking mechanism 70 has a locking piece 71 that is removably fitted into the recess 50 and biased inward. It will be set up.

The cylinder lock 100 is provided with a drive unit 72 which causes the sensor 6 to detect when a door key 200 or other object is inserted into the cylinder lock 100 and causes the locking piece 71 to fit into the recess 50. , and the locking piece is configured to fit into the recess to prevent rotation and unlocking of the inner cylinder.

As shown in FIGS. 1 to 3, the drive section 72 is connected to the locking mechanism 7.
0 is preferable because the entire device becomes compact and its installation and handling become easier.

Alternatively, as shown in FIG.
may be formed separately from the locking mechanism 70.

FIG. 5 is a block diagram showing an embodiment of the anti-theft device for buildings according to the present invention.

The phototransistor 62 of the sensor 6 is connected to the base of another transistor 7. The output of this transistor 7 is connected to a CPU of a computer as an example of control means 9 via an I10 interface 8.

On the other hand, the locking mechanism driving means 12 is a locking mechanism 70 which will be described later.
The device is a means for transmitting a signal to drive the device, and is composed of, for example, a remote control transmitter 10 and a receiver 11, as shown in FIG.

The remote control transmitter 10 is a means for transmitting radio waves with a frequency specific to each building or room.

As long as there is no risk of interference with the frequencies of other buildings (for example, by preventing interference by zoning or other methods), the frequency can be shared with the frequencies of other buildings to some extent.

Note that 101 is an antenna section, 102 is a transmitting section, and 103 is a control section that controls each of these sections.

Further, the receiver 11 is a means for receiving radio waves transmitted from the remote control transmitter 10. This receiver 11 is located near the cylinder lock 100 of the building.
%. This receiver 11 has an I10 interface 1
3, it is connected to the CPU 9.

Note that this locking mechanism driving means 12 does not necessarily have to be of a remote control type that transmits radio waves; for example, this locking mechanism driving means 12 can be directly inserted into a connector provided on the outside of a door of a building, etc. Alternatively, the driving means may be transmitted to the cylinder lock 100.

In this case, residents of the building may prevent the drive signal from being generated by inserting the locking mechanism driving means 12 into the connector part again, or the residents of the building may insert the locking mechanism driving means 12 into the connector part, or insert the locking mechanism driving means 12 into the connector part provided outside near the cylinder lock 100 of the building. By directly inserting this locking mechanism drive means 12, a drive signal is transmitted to the computer, which is stored in the computer.Next, when a resident of the building opens the door, the remote control 50 is turned off. It may be configured so that the state is set.

In this case, the locking mechanism 70 is composed of a driving part 72 and a locking piece 71 that moves freely in and out by the operation of the driving part 72,
The protrusion of the locking piece 71 allows it to be removably fitted into the recess 50 of the cylinder lock 100. The drive unit 72 in this locking mechanism 70 is not particularly limited as long as it is a mechanism that operates the locking piece 71 in a freely retractable manner, but specific examples include a servo motor, an electromagnetic device, and the like.

The locking mechanism 70 is connected to the CPU 9 via the I10 interface 15.

A ROM (oA) memo') 95 is connected to the CPU 9. In the ROM memory 95, when the output signal from the receiver 11 and the output signal from the sensor 6 are input to the CPU 9, the CPU 9 locks the locking mechanism 70 based on these output signals. A program for outputting a mechanism drive signal to operate the drive unit 72 is stored in the memory 16-.

Further, a RAM memory 96 is a writable and readable memory connected to the CPU 9 and used for the operation of the CPU 9.

FIG. 6 is a block diagram of another embodiment of the invention.

In FIG. 6, the control means 9 is equipped with an AND circuit of logic elements, etc., and inputs the signal from the receiver 11 and the signal from the sensor 6, and only when both signals are on, the drive circuit 16 and outputs a drive signal to the locking mechanism 70 to operate the drive section 72.

FIG. 7 is a block diagram of another embodiment of the invention.

In FIG. 7, the control means 9 comprises a series circuit of a first switch 91 connected to the sensor 6 and a second switch 92 connected to the receiver 11. In this case as well, the control means 9 receives the signal from the sensor 6 and the receiver 11.
input the signal from and only when both signals are on,
A drive signal is output to the locking mechanism 70 to operate the drive section 72 and engage the locking piece 71.

Next, the operation of the above embodiment will be explained.

When residents of the building leave the building, the door is locked and a locking mechanism drive radio signal is transmitted by the remote control transmitter 10. The radio signal is transmitted to receiver 1
1 and input to the CPU 9.

On the other hand, a thief approaches the door of the building in such a state and inserts a fake door key or a similar foreign object into the door cylinder lock 10.
0 and try to open the door. Door cylinder lock 1
Since the sensor 6 is attached to the sensor 00 as described above, the insertion of the sensor 6 eliminates the penetrating state of the through hole X and blocks light. As a result, the sensor 6 senses the insertion of the foreign object. The ON output of the sensor 6 is input to the CPU 9 through the I10 interface 8. Therefore, the CPU 9 recognizes that the ON signal is input from both the receiver 11 and the sensor 6, and outputs a locking mechanism drive signal to the locking mechanism 70. Therefore, even if a thief tries to open the door with a foreign object, he will not be able to open the door, and the thief will not be able to do so.

On the other hand, when residents of the building themselves open the door of the building using a door key, they release the locking mechanism drive signal using the remote control transmitter 10 they possess. As a result, when the door key 200 is inserted into the cylinder 100, an ON signal is output from the sensor 6, but a locking mechanism drive signal is not input from the receiver 11, so the CPU
9 does not output a locking mechanism drive signal to the locking mechanism 70, so there is no fear that the locking mechanism 70 will operate.

Note that both the AND circuit in the embodiment shown in FIG. 6 and the series circuit in the embodiment shown in FIG. 7 operate in the same manner as the CPU 9 described above.

In the anti-theft device for buildings according to the present invention, as shown in FIG. door key 200
Alternatively, the door key 200 or the like may be configured to be prevented from being inserted by sensing that something else has been inserted and fitting the locking piece 71 into the recess 50. , - layer theft can be prevented.

In the anti-theft device for buildings according to the present invention, as shown in FIG.
1 in a separated form, but especially in Figures 1 to 3.
As shown in the figure, since the driving portion 72 is provided in the locking mechanism 70, this device is compact and can be extremely easily handled when attached to a door or the like.

(g) Effects of the invention As is clear from the above description, the anti-theft device for a building according to claim 1 includes a locking sensor and a sensor that detects when a door key or other object is inserted into a door cylinder lock. and a locking mechanism driving means that outputs a signal to drive the mechanism, and when the sensor and the locking mechanism driving means are in the on state, the driving part in the locking mechanism is operated, so that the locking piece is attached to the inner cylinder. As a result, even if a thief attempts to open a building door using a counterfeit door key, the inner cylinder will be prevented from rotating and unlocking, and the money, goods, and credit cards inside the building will be blocked. This has the effect of preventing theft of cards, cash cards, etc.

On the other hand, when residents of the building open the door themselves, they operate the locking mechanism drive means in advance to release the locking mechanism, so there is no need to worry about the door being blocked.

In addition, in the present invention, since the sensor is provided not inside the cylinder lock but near the cylinder lock, that is, outside the cylinder lock, the sensor can be installed extremely easily and reliably. .

In other words, in the present invention, when a thief unlocks the doorway, window, or door of a building such as an apartment, warehouse, or house, the locking mechanism is activated before the key is unlocked. While the door cylinder lock is configured so that it can be unlocked simply by inserting a door key or other object into the door cylinder lock, the building resident, manager, or a person with permission from these persons may lock the lock in advance. After the mechanism drive means and/or the sensor in the door cylinder lock is turned off, the locking mechanism is configured so that it does not operate when the door key or other object is inserted into the door cylinder lock, and the structure is simple. Moreover, it is free from malfunctions and has excellent long-term stability.

In the antitheft device for a building according to claim 2, a recess is provided to reach the center of the inner cylinder of the cylinder lock, and when the locking piece fits into the recess, it becomes impossible to insert a door key or the like. This has the effect of preventing layer theft.

In the anti-theft device for a building according to claim 3, since the driving part is provided in the locking mechanism, this device is compact and can be installed on a door etc. and is extremely easy to handle. We have it.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a door cylinder lock showing one embodiment of the anti-theft device for a building according to the present invention, and FIGS. 2 to 4 are sectional views showing other embodiments of the door cylinder lock. 5 to 7 are block diagrams showing other embodiments. DESCRIPTION OF SYMBOLS 1... Outer cylinder, 2... Inner cylinder, 6... Sensor, 9... Control means, 12... Locking mechanism drive means, 16. Drive circuit, 50... Recess, 70. ... Locking mechanism, 71 ... Locking piece, 72 ... Drive section, 100 ...
- Door cylinder lock, 200...Door~-X...Through hole, Xl...Communication hole.

Claims (3)

[Claims] (1) An anti-theft device for buildings such as condominiums, warehouses, and houses, in which a sensor is installed near the cylinder lock to detect when a door key or other object is inserted into the cylinder lock. At the same time, a recess communicating from the outside of the outer cylinder to at least the surface of the inner cylinder is provided, and a locking mechanism is provided on the outside of the cylinder lock at a location corresponding to the recess, and the locking mechanism has the above-mentioned locking mechanism. A locking piece that is removably fitted into the recess is biased inwardly, while a locking piece is installed on the outside of the cylinder lock to push the locking piece into the recess by sensing an output signal from the sensor. 1. An anti-theft device for a building, characterized in that the locking piece is fitted into the recessed portion to prevent rotation and unlocking of the inner cylinder. (2) A recess is provided to reach the center of the inner cylinder,
2. The anti-theft device for a building according to claim 1, wherein a locking piece is fitted into the recess to prevent insertion of a door key or the like. (3) The anti-theft device for a building according to claim 1 or 2, wherein the drive portion is provided in the locking mechanism.