JP2002194935A - Locking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locking device capable of preventing unauthorized unlocking (picking). SOLUTION: This locking device is provided with a cylinder lock which has a bolt rod for locking/unlocking a door of a safe, a pin-body switch 20e which detects a slide of at least one of plural pin bodies of the cylinder lock, a switch bolt-rod switch 25 which detects an unlocking position of the bolt rod, and a controller 27 which controls the operation of a buzzer 31 according to detection signals from respective limit switches 20e and 25. The controller 27 controls the buzzer 31 so that the buzzer 31 can generate an audible alarm, when the detection signal from the switch 25 is not input within a prescribed time after input of the detection signal from the switch 20e.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for unlocking a locked body such as a door in a safe, a lid of various containers, a drawer in a desk or furniture.

[0002]

2. Description of the Related Art Among various locks, a cylinder lock which is most widely used at present has a structure in which an inner cylinder having a keyhole is rotatably fitted in an outer cylinder. , A cylinder cam is disposed in association with a bar for unlocking a door in a safe or the like, a lid of various containers, a drawer in a desk or furniture (hereinafter referred to as a locked body). A plurality of pinholes formed so as to communicate with the keyhole over the outer cylinder and the inner cylinder have a pin body composed of a tumbler pin and a driver pin, and a spring for urging the pin body in the direction of the keyhole. Are inserted respectively.

[0003] In this type of cylinder lock, a predetermined key is inserted into the keyhole, and the contact surface between the tumbler pin and the driver pin is aligned with the fitting surface between the outer cylinder and the inner cylinder. When the inner cylinder and thus the cylinder cam are rotated in a predetermined direction, the bar is slid in conjunction with the rotation of the cylinder cam, whereby the locked body is unlocked.

[0004]

By the way, in the conventional cylinder lock, when each of the pin bodies is pushed up by something other than a predetermined key (for example, a picking tool), a contact surface between the tumbler pin and the driver pin is raised. May coincide with the fitting surface of the outer cylinder and the inner cylinder, and the locked body may be unlocked (picked).

In order to prevent such picking, for example, in Japanese Patent Application Laid-Open No. 2000-110419, a first sensor for detecting the presence or absence of a key or the like is provided at a key insertion opening in a keyhole, while a cylinder cam is provided with the first sensor. A second sensor for detecting rotation, a lock mechanism for holding the cylinder cam non-rotatably, and a time difference between detection signals of the first sensor and the second sensor to calculate the operation of the lock mechanism And a control mechanism for controlling the cylinder lock.

In this configuration, when a key or the like contacts the first sensor in the locked state, that is, when the key or the like is inserted into the keyhole, the control mechanism operates, and
It is in a state of waiting for the input of the detection signal of the second sensor. If the second sensor does not detect the rotation of the cylinder cam even after a preset time (3 seconds in the embodiment described in the above-mentioned publication) has elapsed, the control mechanism turns the lock mechanism into the lock mechanism. The operation is controlled so that the cylinder cam is fixed so as not to rotate, so that the locked state cannot be released.

However, according to the configuration of the prior art, even when the key is unlocked with a predetermined key adapted to the keyhole, the cylinder sensor is not used until the second sensor contacts the first sensor. If the time required to detect the rotation of the cylinder cam is longer than the set time, the lock mechanism locks the cylinder cam so that it cannot rotate, and the locked state cannot be released. In this case, the fixing of the cylinder cam cannot be released until a certain long time (30 minutes in the embodiment described in the above-mentioned publication) elapses.

In addition, since the first sensor is attached to the key insertion slot, there is a high possibility that a key or the like may come into contact with the first sensor, and there is a problem that the locked state may not be released unintentionally. Was.

[0009] Therefore, it is a technical object of the present invention to provide a locking device that solves the above problems.

[0010]

SUMMARY OF THE INVENTION In order to solve this technical problem, an invention according to claim 1 is a cylinder lock having a bar for unlocking a locked body such as a door, a lid, a drawer, and the like. A pin sensor for detecting sliding of at least one of the plurality of pin members of the cylinder lock, a bar sensor for detecting the unlock position of the bar, and a notification based on detection signals from the sensors. A locking device comprising a controller that controls the operation of the device, wherein the controller detects that the detection signal of the bar sensor is not input within a predetermined time after the detection signal of the pin sensor is input. Is configured to perform control so as to be notified by the notification device.

According to a second aspect of the present invention, there is provided a cylinder lock having a bar for unlocking a locked body such as a door, a lid, a drawer or the like, and at least one of the plurality of pin bodies of the cylinder lock. A locking device including a pin sensor for detecting sliding, a bar sensor for detecting an unlocked position of the bar, and a controller for controlling operation of a notification device based on a detection signal of each sensor. And the controller has:
The controller further comprises a storage unit in which an input pattern of a detection signal of the pin body sensor when a predetermined key is inserted into a keyhole of the cylinder lock is stored in advance, and the controller stores the detection signal of the pin body sensor in the memory. If the input signal is input in a pattern different from the input pattern stored in advance in the means, or after any one of the detection signals of the pin body sensor is input, the detection signal of the bar sensor is input within a predetermined time. If not, control is performed so that the notification is performed by the notification device.

The invention according to claim 3 is a cylinder lock having a bar for unlocking a locked body such as a door, a lid or a drawer, and at least one of a plurality of pins of the cylinder lock.
A locking device comprising: a pin body sensor for detecting sliding of the two pin bodies; and a controller for controlling operation of a notification device based on a detection signal of the pin body sensor, wherein the controller includes the cylinder Storage means for preliminarily storing an input pattern of a detection signal of the pin body sensor when a predetermined key is inserted into a keyhole of the lock,
The controller is configured to perform control so that the notification device notifies when the detection signal of the pin body sensor is input in a pattern different from the input pattern stored in the storage unit in advance. .

According to a fourth aspect of the present invention, in the first or the second aspect, the controller executes the control for informing by the informing means, and then, when the detection signal of the bar sensor is input, the controller outputs the signal. It is configured to control to stop the notification by the notification means.

Further, the invention of claim 5 provides the invention according to claims 1-4.
In any one of the above, the notification device is a predetermined mobile phone, a PHS phone, or an external terminal, and each of these notification devices has a control signal of the controller via a communication device connected to an output side of the controller. Is transmitted.

[0015]

According to the first aspect of the present invention, if the picking tool is unlocked improperly, for example, after a predetermined time has passed since the picking tool was inserted into the keyhole, the notifying device notifies the user that the cylinder lock has been released. Before unlocking, a person who unlocks illegally can be attempted by intimidating by notification by a notification device, and the unauthorized unlocking (picking) can be prevented.

Further, according to the present invention, when the detection signal of the pin body sensor is inputted in a pattern different from the input pattern stored in the storage means in advance, or in the detection signal of the pin body sensor, If the detection signal of the bar sensor is not input within a predetermined time after an arbitrary one is input, the alarm is notified by the alarm device. In addition to being restricted, it is difficult to unlock with something other than a predetermined key (such as a picking tool), and the anti-theft property against picking and the like is further improved.

According to the third aspect of the present invention, only when the detection signal of the pin body sensor is input in a pattern different from the input pattern stored in the storage means in advance, the notification is made by the notification device. It becomes difficult to unlock with something other than the key. Even with this configuration alone, unauthorized unlocking (picking) can be prevented.

In the first or second aspect, if the configuration of the fourth aspect is adopted, the controller executes the control for stopping the operation of the notifying device when the detection signal of the bar sensor is input. When the notification device is activated after a lapse of a predetermined time, the operation of the notification device can be stopped by performing a normal unlocking operation with a predetermined key.

According to the fifth aspect of the present invention, the user of the cylinder lock can use a predetermined portable telephone,
The HS telephone or the external terminal allows the user to know that the cylinder lock has been unlocked even from a remote place such as where he is away from home, and to take prompt action such as reporting to the police or a security company.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 7 show a first embodiment in which the present invention is applied to a safe 1. First, an overall outline of the safe 1 will be described with reference to FIG.

The safe 1 has a substantially box-shaped main body 2 with an open front.
And a horizontally rotatable door 3 disposed in the opening. On the free end side of the surface of the door 3,
A handle 4 for opening and closing the door 3 is rotatably mounted. When the handle 4 is rotated, an operating rod (not shown) provided in association with the handle 4 is slid left and right to engage and disengage with a first locking hole (not shown) of the main body 2. Have been. A cylinder lock 5 is disposed above the handle 4 on the surface of the door 3 so as to penetrate the door 3 in the thickness direction (the front-back width direction). The door 3 corresponds to the above-mentioned locked body.

Next, the structure of the cylinder lock 5 is shown in FIGS.
This will be described with reference to FIG. 2 and 6, the door 3 and a cylinder box 21, which will be described later, are not shown. In FIG. 3, the door 3 is not shown.

As shown in FIG. 2, the cylinder lock 5 includes a substantially cylindrical outer cylinder 6 and a substantially cylindrical inner cylinder 7 rotatably fitted into a fitting hole of the outer cylinder 6. ing. The inner cylinder 7 is provided with a keyhole 8 extending in the axial direction.
Is open at the front end of the inner cylinder 7 (on the front side of the door 3) (see FIG. 1). At the rear end of the inner cylinder 7 (on the back side of the door 3), a cylinder cam 10 that can rotate together with the inner cylinder 7 is provided.
Is disposed in association with a bar 11 for unlocking the door 3 (details will be described later).

In the inner cylinder 7, a plurality of pin holes 13 (five in FIG. 2) extending radially outward from the keyhole 8 are formed at intervals in the axial direction. The outer cylinder 6 also has a pin hole 12 communicating with each pin hole 13 of the inner cylinder 7 when the inner cylinder 7 is rotated by a predetermined angle.
As many as three (five in FIG. 2) are drilled.

Each of the pin holes 12 and 13 has a pin body including a tumbler pin 15 and a driver pin 16 and a spring 17 for urging the respective pin bodies inward in the radial direction. When the pin hole 13 of the inner cylinder 7 matches the pin hole 13 of the inner cylinder 7, the tumbler pin 1
5, the driver pins 16 and the springs 17 are inserted and arranged in this order.

The vertical length of both pins 15 and 16 constituting each pin body corresponds to an uneven key groove pattern (the details will be described later) at the upper edge of the key 9 inserted into the key hole 8. The contact surfaces 18 of the pushed-up pins 15 and 16 are set so as to coincide with the fitting surfaces 19 between the outer cylinder 6 and the inner cylinder 7 (see FIG. 6).

In the following description, for the sake of convenience, the pin holes 12 and 13 communicating with each other are collectively referred to as a pin hole 14,
With respect to each of the pin holes 14 and the pin bodies (tumbler pins 15 and driver pins 16) corresponding to the respective pin holes 14, reference numerals a, a are arranged in the axial direction of the keyhole 8 (the outer cylinder 6 or the inner cylinder 7). Add b, c, d, and e.

As shown in FIG. 6, the uneven key groove pattern at the upper edge of the key 9 has a first valley 90 and a first valley contacting the tumbler pin 15e from the tip of the key 9 toward the root. Part 95, the second mountain part 9 abutting on the tumbler pin 15d
4, a second valley portion 93 that contacts the tumbler pin 15c, a third peak portion 92 that contacts the tumbler pin 15b, and a fourth peak portion 91 that contacts the tumbler pin 15a.

As shown in FIGS. 2 and 6, a pin switch 20e for detecting sliding of the pin inserted into the rearmost pin hole 14e in the axial direction is provided at the rear portion of the outer cylinder 6. ing. This pin body switch 20e corresponds to the pin body sensor described in the claims, and is provided with the last pin hole 1.
It is a limit switch type that detects the presence or absence of sliding of the pin body depending on whether or not the detection unit 40e facing 4e contacts the driver pin 16e.

As shown in FIG. 3, a substantially box-shaped cylinder box 21 disposed at the rear end of the cylinder lock 5 is screwed to the back surface of the door 3. Details are not shown,
The cylinder box 21 includes a cylinder cam 10 that can rotate together with the inner cylinder 7 and a bar 11 for unlocking the door 3.

The cylinder cam 10 and the bar 11 are connected via a connecting bar (not shown). The bar 11
The rotational motion of the cylinder cam 10 is converted into a sliding motion via the connecting bar, and the cylinder
1 is configured to protrude and retract from a sliding hole 22 formed in the right side surface. Thus, the bar 11 is engaged with and disengaged from the second locking hole (not shown) of the main body 2.

In FIG. 3, a left and right longitudinal slot 23 is formed in the front surface of the cylinder box 21, and a position detecting bar 24 fixed to the bar 11 projects outward from the slot 23. I have. At the left end of the slot 23, a bar 11
, Ie, the bar 11 is the cylinder box 2
Bar rod switch 2 that detects that it is in the position immersed in 1.
5 is screwed. The bar switch 25 corresponds to the bar sensor described in the claims.

The position detecting bar 24 slides along the slot 23 in conjunction with the left and right sliding of the bar rod 11, and the bar rod switch 2 is moved in a state where the bar rod 11 is immersed in the cylinder box 21.
5 is configured to be in contact with the detection unit 45 of FIG.
2). Thus, the bar switch 25
Is turned on and off (ON / OFF) depending on whether or not the detecting portion 45 of the bar contacts the position detecting bar 24 so that the bar rod switch 25 detects whether or not the bar rod 11 is at the unlock position. Has become.

Next, a configuration for controlling the operation of the notification device according to the present invention will be described with reference to FIG. here,
FIG. 4 is a functional block diagram of a controller 27 such as a microcomputer that executes the control. The controller 27 is a central processing unit (C) that executes various operations.
PU) 28, a read-only memory (ROM) 29 for storing a control program, a random-access memory (RAM) 30, for storing various data,
The timer 43 for monitoring the response of the pin switch 20e and the bar switch 25 and notifying the CPU 28 of the occurrence of an abnormality when a predetermined time has elapsed, and an input and output unit for transmitting data by connecting to various input units and output units described later. An output interface is provided.

The input interface of the controller 27 includes the pin switch 20, the bar switch 25,
The power switch 26 and the release switch 44 are connected respectively. On the other hand, a buzzer 31 as an example of a notification device is connected to the output interface. The controller 27, the buzzer 31, the power switch 26, the release switch 44, and the battery 32 for supplying power to the controller 27 are stored in the control box 33, for example, on a shelf or door in the main body 2. 3 are provided at appropriate places on the back surface or the like.

Next, the unlocking operation of the cylinder lock 5 and the control mode of the controller 27 will be described mainly with reference to FIGS. In FIG. 5, the door 3 and the cylinder box 21 are not shown.

When a predetermined key 9 is inserted into the keyhole 8 when unlocking the locked cylinder lock 5, each pin body resists the urging force of the spring 17 in accordance with the key groove pattern of the key 9. And is pushed up. When the first peak 90 of the key 9 pushes up the last tumbler pin 15e, the driver pin 1
6e comes into contact with the detection unit 40e of the pin switch 20e (see FIG. 5), and the pin switch 20e is turned on (ON).

When the ON signal of the pin switch 20e is input to the controller 27, the controller 27
, The timer 43 starts counting a preset time (set to 3 to 5 seconds in the first embodiment).

Next, as shown in FIGS. 6 and 7A, when a predetermined key 9 is inserted into the keyhole 8 as far as it will go, the contact surfaces of the tumbler pins 15a to 15e and the driver pins 16a to 16e in each pin body. 18 coincides with the fitting surface 19 of the outer cylinder 6 and the inner cylinder 7.

When the inner cylinder 7 is rotated clockwise with the key 9 (see FIG. 7B), the bar 11 is retracted into the cylinder box 21 with the rotation of the cylinder cam 10, and the cylinder The lock 5 is unlocked. At the same time, the position detection bar 24 attached to the bar rod 11 comes into contact with the detection section 45 of the bar rod switch 25 (see FIG. 3), and the bar rod switch 25 is turned on (ON).

In the above, O of the bar rod switch 25
When the N signal is input to the controller 27 within the set time, the timer 43 stops counting the set time according to a command from the controller 27, and the cylinder lock 5 is unlocked as it is.

On the other hand, if the set time elapses before the ON signal of the bar rod switch 25 is input to the controller 27, a control signal notifying the occurrence of an abnormality is output from the timer 43 to the control signal C.
PU28, the buzzer 3 based on the detection result
1 emits a warning sound. In this case, for example, after the cylinder lock 5 is unlocked and the door 3 is opened, the release switch 44 provided on the control box 33 or the like is pressed to stop the operation of the buzzer 31.

With the above control, for example, in the case where the picking tool is unlocked improperly, the picking tool is inserted into the keyhole 8 and the last tumbler pin 15e is pushed up. Will be issued. Therefore, before the cylinder lock 5 is unlocked, a person who unlocks illegally can be attempted by threatening the warning sound of the buzzer 31 or the like, thereby preventing unauthorized unlocking (picking).

In place of the buzzer 31 as an alarm device, a display lamp may be flickered to threaten a person who unlocks illegally. If the buzzer 31 emits a warning sound after the set time has elapsed, the bar switch 25 is turned on by turning the inner cylinder 7 (ON).
If the controller 27 to which the ON signal of the bar-rod switch 25 is input is operated so as to execute control for stopping the operation of the buzzer 31, a normal unlocking operation is performed with the predetermined key 9. , The operation of the buzzer 31 can be stopped.

By the way, as another example of the control, the ROM 29 of the controller 27 stores the ON state of the
Data about the number of times of signal input is stored in advance,
Before the ON signal of the bar switch 25 is input to the controller 27, the ON signal of the pin switch 20 is the same number of times as the number of inputs previously stored in the ROM 29 (the first number).
In the embodiment, three times), the controller 2
7 can control the buzzer 31 to emit a warning sound.

In this case, the ROM 2 of the controller 27
9 corresponds to the storage means described in the claims, and data relating to the number of times the ON signal of the pin body switch 20 is input corresponds to the input pattern described in the claims.

With this control, the buzzer 31 emits a warning sound when the last tumbler pin 15e is pushed up three times by inserting and removing the picking tool several times so that the picking tool is unlocked improperly, for example. Will be emitted. That is, since the number of times that a key other than the predetermined key 9 is inserted into the keyhole 8 can be limited, also in this case, unauthorized unlocking (picking) can be prevented. Further, by combining the control method of the first embodiment with the control method as another example, it is possible to limit the time for unauthorized unlocking and the number of times that a key other than a predetermined key is inserted into the keyhole, The anti-theft property against picking and the like is improved.

The buzzer 31 also emits a warning sound when the key 9 is inserted and removed a plurality of times. In this case, for example, the cylinder lock 5 is unlocked and the door 3 is opened.
, The release switch 44 provided on the control box 33 is pressed to stop the operation of the buzzer 31.

FIG. 8 shows a second embodiment as another example of the arrangement of the pin switches 20e. In the second and subsequent embodiments, components having the same configuration and operation as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and detailed description thereof will be omitted.

In the second embodiment, a rod hole 34 is formed at the upper end of the rearmost pin hole 14e in the outer cylinder 6, and this pin hole 14e is used instead of the driver pin 16e in the first embodiment. A push rod 35 having a spring 17 mounted on the shaft is fitted therein. Then, the pin body switch 20 is provided at the position of the rod hole
e is attached.

The tip of the shaft of the push rod 35 penetrates the rod hole 34, and the tip of the shaft comes into contact with the pin switch 20 when the push rod 35 slides upward. .

As described above, even when the pin body switch 20e is externally attached to the outer cylinder 6, the same operation and effect as in the first embodiment can be obtained. Further, the pin body switch 20e is not limited to be mounted corresponding to the last pin hole 14e, but may be mounted corresponding to any of the pin holes 14a to 14d.

9 to 12 show a plurality of pin switches 2.
A third embodiment using 0 is shown. 9 to 12, the door 3 and the cylinder box 21 are not shown.

In this embodiment, three pin switches 20c, 20d, and 20e are respectively connected to the pin holes 14c, 1c.
4d and 14e are arranged. The ROM 29 of the controller 29 stores in advance data of a predetermined input pattern in ON / OFF signals (detection signals) of the pin switches 20c to 20e.
This ROM 29 corresponds to the storage means described in the claims.

Table 1 shows an example of the input pattern indicating the order of the ON / OFF operations of the pin switches 20c to 20e.

[0056]

[Table 1]

In the above configuration, as shown in FIG.
When a predetermined key 9 is inserted into the keyhole 8 of the cylinder lock 5 in the locked state, and the first mountain portion 90 at the tip of the key 9 pushes up the third tumbler pin 15c from the front, the driver pin 1
6c contacts the detection unit 40c of the pin body switch 20c, and only the pin body switch 20c is turned on (ON). This stage corresponds to the first stage in Table 1.

Next, as shown in FIG. 10, when the key 9 is inserted into the back, the first ridge 90 pushes up the fourth tumbler pin 15d from the front, and the driver pin 16d is connected to the detection unit 40d of the pin switch 20d. By contact, the pin body switch 20d is turned on (ON), while
When the third pin 15c, 16c from the front is pressed and biased toward the first valley 95 of the key 9 by the spring 17, the third pin body switch 20c from the front is turned off (OF).
F) Operate. That is, in this stage (corresponding to the second stage in Table 1), only the fourth pin body switch 20d from the front is turned on (ON).

Next, as shown in FIG. 11, when the key 9 is inserted further inward, the first peak 90 pushes up the last tumbler pin 15e, and the driver pin 16e comes into contact with the detection section 40e of the pin switch 20e. Then, the pin body switch 20e is turned on (ON). At the same time, the fourth pins 15d, 16d from the front are
Is pressed toward the first valley 95, and the fourth pin body switch 20d from the front is turned off (OF).
F) Operate. Further, the second peak portion 94 pushes up the third tumbler pin 15c from the front, and the driver pin 16c
Is in contact with the detection unit 40c of the pin body switch 20c, the pin body switch 20c is turned on (ON) and operated (see the third stage in Table 1).

Then, as shown in FIG. 12, when the key 9 is firmly inserted into the keyhole 8, the pin body switch 20c
-20e are turned off (OFF). This stage corresponds to the fourth stage in Table 1.

At each stage, the controller 2
7, an ON / OFF signal (detection signal) for the ON / OFF operation of each of the pin body switches 20c to 20e is input. The controller 27 reads the pattern of the ON / OFF signal input at each stage and the ROM
The cylinder lock 5 can be unlocked without operating the buzzer 31 if the input pattern is compared with the input pattern stored in advance in the memory 29 to the end. On the other hand, if there is at least one different pattern, the buzzer 31 emits a warning sound.

With the above control, the buzzer 31 emits a warning sound only by inserting something other than the predetermined key 9 into the keyhole 8, so that the anti-theft property against picking and the like is also improved in this case. is there.

Also in this case, using the timer 43, the pin switch 20 in the first stage shown in FIG.
After the ON signal of the switch c is input to the controller 27, each of the pin switches 20c, 20c, in the fourth stage shown in FIG.
The ON / OFF signals of 20d and 20e are
If the set time elapses before the input is made, the controller 27 may execute the control of the buzzer 31 emitting a warning sound.

In the third embodiment, there is no need to provide a configuration for detecting the unlock position of the bar 11 (the bar switch 25 and the like). The pin body switch 20 has a plurality of pin holes 14.
You may attach corresponding to all of a-14e. The input pattern according to the present invention is not limited to the above-described embodiment, and it goes without saying that the input pattern can be arbitrarily set according to the keyway pattern of the key 9 and the number of the pin switches 20.

FIG. 13 shows a fourth embodiment as another example of the configuration for controlling the operation of the notification device. The difference between this embodiment and the first embodiment is that the controller 27
A setting input device 36 for setting the telephone number of the mobile phone 41 and other various data in advance is provided on the input interface of the external communication line 39.
A communication device 37 that can transmit and receive to and from a predetermined mobile phone 41 or an external terminal 42 via the communication device 37 is connected.

In the fourth embodiment, the portable telephone 41 and the external terminal 42 correspond to the notification device according to the present invention, similarly to the above-mentioned buzzer 31. Further, the controller 27 may be connected to an external power supply 38 instead of the battery 32 in the first embodiment.

In the above configuration, for example, when the picking tool is inserted into the keyhole 8 and the last tumbler pin 15e is pushed up to illegally unlock with the picking tool, the controller 27
Activates the buzzer 31, transmits the telephone number registered in the RAM 30 in advance by the communication device 37, calls the predetermined mobile phone 41 or the external terminal 42 via the external communication line 39, and turns off the cylinder lock 5. It is set to transmit a warning sound or a message to notify that the lock has been unlocked.

With this control, the user of the safe 1 can know that the cylinder lock 5 has been unlocked from a remote place, such as when going out, and report to the police or security company. , They can respond quickly. In the fourth embodiment, the mobile phone 41 is replaced with a PH.
It goes without saying that an S telephone may be used.

The present invention can be embodied in various ways other than the illustrated embodiment. For example, the cylinder lock 5 is not limited to the illustrated form,
For example, the present invention can be applied to a so-called hippopotamus or the like in which a pin hole extends substantially radially in a front view.

Further, the bar 3 is engaged with and disengaged from a notch formed in a longitudinally intermediate portion of an operating rod (not shown) provided in association with the handle 4, so that the door 3 is provided. You may make it a locked state. The pin sensor and the bar sensor are not limited to the limit switches in the above-described embodiment, but may be other types of contact switches, proximity switches such as photoelectric switches and optical fiber switches.

Further, it goes without saying that the present invention can be widely applied to locking devices for unlocking doors in safes, houses, offices, automobiles, etc., lids of various containers, drawers in desks and furniture, and the like.

[Brief description of the drawings]

FIG. 1 is a perspective view of a safe to which the present invention is applied.

FIG. 2 is a side sectional view showing a locked state of the cylinder lock according to the first embodiment.

FIG. 3 is a perspective view of the cylinder box as viewed from the back side of the door.

FIG. 4 is a functional block diagram of a controller.

FIG. 5 is a side sectional view of the cylinder lock showing a state where the key is being inserted.

FIG. 6 is a side cross-sectional view of the cylinder lock showing a state in which the key is fully inserted.

7A is a sectional view taken along line VII-VII of FIG.
(B) is a front sectional view showing the state where the inner cylinder turned in the unlocking direction.

FIG. 8 is a diagram showing a second embodiment as another example of the pin body sensor.

FIG. 9 is a side sectional view of a cylinder lock showing a first-stage key insertion state in a third embodiment.

FIG. 10 is a side sectional view of the cylinder lock showing a key insertion state in a second stage.

FIG. 11 is a side cross-sectional view of the cylinder lock showing a third-stage key insertion state.

FIG. 12 is a side sectional view of the cylinder lock, showing a state of a fourth stage in which the key is inserted to the innermost position.

FIG. 13 is a functional block diagram of a controller according to a fourth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Safe 3 Door 5 Cylinder lock 6 Outer cylinder 7 Inner cylinder 8 Keyhole 9 Key 10 Cylinder cam 11 Bar rod 14a-14e Pin hole 15a-15e Tumbler pin 16a-16e Driver pin 17 Spring 20c-20e Pin switch as a pin sensor Reference Signs List 25 bar switch as bar sensor 27 controller 28 CPU 29 ROM 30 as storage means RAM 30 RAM 31 buzzer as an example of notification device 37 communication device 41 mobile phone as an example of notification device 42 external terminal as an example of notification device 43 Timer

Claims (5)

[Claims] 1. A cylinder lock having a bar for unlocking a locked body such as a door, a lid, a drawer and the like, and sliding of at least one of the plurality of pin bodies of the cylinder lock is detected. A locking device comprising: a pin sensor, a bar sensor that detects an unlocking position of the bar, and a controller that controls an operation of a notification device based on a detection signal of each of the sensors. Is characterized in that if the detection signal of the bar sensor is not input within a predetermined time after the detection signal of the pin body sensor is input, control is performed so that the notification device notifies the detection. apparatus. 2. A cylinder lock having a bar for unlocking a locked body such as a door, a lid, a drawer or the like, and sliding of at least one of the plurality of pin bodies of the cylinder lock is detected. A locking device comprising: a pin sensor, a bar sensor that detects an unlocking position of the bar, and a controller that controls an operation of a notification device based on a detection signal of each of the sensors. Comprises a storage means in which an input pattern of a detection signal of the pin sensor when a predetermined key is inserted into a keyhole of the cylinder lock is stored in advance, and the controller detects the detection signal of the pin sensor. Is input in a pattern different from the input pattern previously stored in the storage means, or within a predetermined time after any one of the detection signals of the pin sensor is input. When the detection signal of the 閂杆 sensor is not input,
A locking device, wherein the locking device is controlled so as to be notified by the notification device. 3. A cylinder lock having a bar for unlocking a locked body such as a door, a lid or a drawer, and sliding of at least one of the plurality of pin bodies of the cylinder lock is detected. A locking device comprising: a pin body sensor; and a controller that controls an operation of an alarm device based on a detection signal of the pin body sensor, wherein a predetermined key is inserted into a keyhole of the cylinder lock. Storage means in which an input pattern of the detection signal of the pin sensor in the case is stored in advance, wherein the controller detects the input signal of the pin sensor in a different pattern from the input pattern stored in the storage means in advance. The lock device is controlled so as to be notified by the notification device when the input is made by the user. 4. The controller according to claim 1, wherein the controller controls to stop the notification by the notification means when the detection signal of the bar sensor is input after executing the control of the notification by the notification means. The locking device according to claim 1 or 2, wherein: 5. The notification device according to claim 1, wherein the notification device is a mobile phone.
5. An HS telephone or an external terminal, wherein each of the notification devices is configured to transmit a control signal of the controller via a communication device connected to an output side of the controller. The locking device according to any one of the above.