JP3481937B1 - Cylinder lock break prevention cover and security cylinder lock - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To prevent destruction of a lock. A cover for preventing unauthorized unlocking by picking or the like is provided so as to cover an outdoor exposed surface of a cylinder portion of the lock. A similar gap 1a is formed, and the gap 1a is formed in a narrow shape corresponding to the extremely thin key 3. The key 3 is composed of an insertion part 4 to be inserted into the cylinder part 2, a handle part 5, and a connecting part 6 connecting the insertion part 4 and the handle part 5. At least the insertion portion 4 and the connection portion 6 of the key 3 are formed in a shape having a very small thickness. The connecting portion 6 is formed longer than the thickness of the cover 1,
It is formed so as to be rotatable in the gap 1a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylinder lock breakage prevention cover capable of preventing the act of breaking a lock, and a crime prevention cylinder lock which makes it impossible to unlock the lock.

[0002]

2. Description of the Related Art In recent years, after breaking a cylinder lock or illegally unlocking a lock using a picking tool or the like,
There are many crimes involving theft, and various measures are being taken. Last year, the applicant of the present invention also applied for a patent for a lock that cannot be picked and was entitled "security lock" (patent No. 3193957).

In the above-mentioned "security lock" configuration, the ordinary cylinder portion (keyhole portion) is used as the first locking mechanism, and a second locking mechanism is provided separately from this. When an object (including the key) is inserted into the keyhole, the sensor detects it. The second lock mechanism locks the entire lock when the cylinder does not rotate after a certain period of time (3 to 5 seconds). With this configuration, even if the cylinder portion is illegally released by picking or the like, the second lock mechanism locks the entire lock, so that the lock cannot be released.

[0004]

[Problems to be Solved by the Invention] The above "security lock" has the following problems. That is, although the picking can be completely prevented, it has the same weakness as the conventional lock against the act of breaking the lock (hereinafter referred to as "breaking lock"). Tablet breaking is a crime that has been used a lot in recent years,
Apply a drill etc. to the outer surface of the keyhole to destroy the keyhole itself. Alternatively, there is a method in which a rod-shaped tip is inserted into the key hole and a large force is applied to the pin that stops the rotation of the key hole to destroy the pin.

Further, when the conventional lock is modified to a crime prevention lock, there is a problem that it is difficult to modify the cylinder portion and the number of parts increases. Further, as the length of the cylinder portion increases, the position of the dead bolt often moves to the inside of the room, which causes a problem of positional mismatch between the dead bolt and the strike that houses the dead bolt.

Therefore, the present invention was developed in view of the conventional problems, and an object of the present invention is to provide a cylinder lock break preventing cover which can prevent the lock from being broken. Further, it is an object of the present invention to provide a crime prevention cylinder lock which can completely prevent unauthorized release of the lock by picking, can minimize modification of the cylinder portion, and can reduce the number of modified parts.

[0007]

The present invention SUMMARY OF] covers the outside exposed surface of the cylinder lock, except for the key insertion portion, times
The cover comprises a non-rotatably fixed cover and a key having an elongated connecting portion formed between the cylinder insertion portion and the handle portion, and the connecting portion of the key is the cover portion of the cover. It is formed to be longer than the thickness of the key insertion portion and rotatably formed in the key insertion portion of the cover.

Further, a sensor for detecting a vibration of a cylinder portion at a cylinder lock and outputting a signal, a control mechanism for outputting a signal when a signal received from the sensor continues for a predetermined time, and the control mechanism. A lock mechanism for receiving a signal output from the lock mechanism for locking or unlocking a movable portion of a cylinder lock, and a vibration generating portion for transmitting a vibration to a cylinder portion, wherein the movable portion is locked. after the state a predetermined time, the control mechanism is the lock mechanism when sending a signal to release the locked state of the movable portion at the same time also <br/> properly send a signal to the vibration generating portion before and after Vibration is transmitted to the cylinder part.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) FIGS. 1 to 4 show the present embodiment, FIG. 1 is a front view of a cover, FIG. 2 is a plan view of a key, and FIG. 3 is a plan view showing a usage state. FIG. 4 is a side view of the same.

Reference numeral 1 is a strong cover, and the cover 1 is provided so as to cover the outdoor exposed surface of the cylinder portion 2 of the lock. The cover 1 is made of a strong material that is not easily broken even by an electric drill (not shown), etc. There is. A gap 1a similar to the key insertion portion of the cylinder portion 2 is formed in the substantially central portion of the strong cover 1.

The gap 1a of the cover 1 is formed in a narrow shape corresponding to the extremely thin key 3, and a tool for breaking the lock (not shown) is inserted into the gap 1a to break the cover 1. However, the cross section of the tool to be inserted is inevitably thin due to the narrow shape of the gap 1a, so that the gap 1a cannot be broken.

The key 3 is composed of an insert portion 4 to be inserted into the cylinder portion 2, a handle portion 5, and an elongated connecting portion 6 for connecting the insert portion 4 and the handle portion 5. At least the insertion portion 4 and the connecting portion 6 of the key 3 are formed to have an extremely thin thickness.

The connecting portion 6 is provided on the central axis of the key 3,
While being formed longer than the thickness of the strong cover 1,
It is formed in such a size that it can rotate within the gap 1a. Therefore, when the insertion part 4 of the key 3 is housed in the cylinder part 2, the connecting part 6 can transmit the force of rotating the handle part 5 of the key 3 to the insertion part 4 and rotate the cylinder part 2. Has been done.

To use the cylinder lock having the above structure, the handle portion 5 of the key 3 is gripped, the tip of the insertion portion 4 of the key 3 is inserted into the gap 1a of the strong cover 1, and the key is further pushed. The insertion part 4 of 3 is housed in the cylinder part 2. Next, the handle portion 5 of the key 3 is rotated in the same manner as a normal key to lock or unlock the cylinder lock.

According to the present embodiment, since the strong cover 1 is provided, it is possible to prevent the act of breaking the cylinder portion 2 of the lock, which is exposed to the outside, by the electric drill or the like from the exposed surface. Further, even when the cylinder portion 2 is broken, the breaking tool is provided by providing the gap 1a of the strong cover 1.
It becomes difficult to penetrate (not shown) into the cylinder portion 2, and even if a breaking tool is penetrated, it cannot be rotated because it is restricted by the rotation in the gap 1a, and the destruction can be prevented. . Furthermore, since the gap 1a is provided, the operation of the picking tool can be limited, so that it is difficult to illegally unlock the lock.

Although the connecting portion 6 is provided on the central axis of the key 3 in the present embodiment, the present invention is not limited to this, and the connecting portion 6 can be provided in addition to the central axis.

Further, in the present embodiment, the insertion portion 4 of the key 3 and the handle portion 5 are connected by the connecting portion 6, but the present invention is not limited to this, and the insertion portion 4, the handle portion 5 and The connecting portion 6 can be integrally formed of the same member.

(Embodiment 2) FIG. 5 is a schematic configuration diagram showing the present embodiment.

Reference numeral 31 is a lock body, and the lock body 31 is composed of an outer cylinder 12 and a cylinder frame 13 rotatably fitted in the outer cylinder 12. A keyhole 14 into which a key (not shown) is inserted is formed inside the cylinder frame 13.

A cylinder rotating plate 16 is provided on the cylinder frame 13 on the other end side of the key insertion opening 15 of the key hole 14.
A sensor 17 for detecting vibration of the cylinder frame 13 is installed on the cylinder rotating plate 16. A rod fitting hole 18 is formed in the cylinder rotating plate 16.
A lock mechanism 19 is installed near the rod fitting hole 18. The lock mechanism 19 is provided with a rod 20 slidable left and right, and the tip of the rod 20 has a rod fitting hole 1
It is configured such that the cylinder frame 13 can be prevented from rotating by being fitted into the cylinder 8.

A large number of pin fitting holes 21 are provided in the outer cylinder 12. Within the pin fitting hole 21, the driver pin 2
2 and the tumbler pin 23, and the driver pin 22 and the tumbler pin 23 at all times in the cylinder frame 13
And a spring 24 that urges the keyhole 14 are stored.
The driver pin 22 and the tumbler pin 23 are connected via a shear line 25 so that they can be connected and separated.

The driver pins 22 and the tumbler pins 23 are formed to have different lengths, and the shear lines 25 are also set to different positions. When a key (not shown) is inserted, the shear lines 25 are aligned at the boundary between the outer cylinder 12 and the cylinder frame 13, so that the cylinder frame 13 can rotate.
It is configured so that it can be unlocked.

Reference numeral 26 is a control mechanism having a timer (not shown) built therein, and the control mechanism 26 is operated by power supplied from a battery 27 connected thereto. Further, the control mechanism 26 is connected so as to be able to receive signals from the sensor 17, processes these signals and sends electric power to the lock mechanism 19 to operate them. Further, a vibration generator 32 is provided on the outer circumference of the outer cylinder 12.

In the lock body 31 having the above structure, the key is inserted into the keyhole 14 through the key insertion opening 15 to normally unlock the lock. At this time, it takes about 1 to 2 seconds from the insertion of the key to the unlocking.
The vibration from 3 similarly occurs for about 1 to 2 seconds.

In the case of illegal unlocking by the picking tool, it takes a long time to align each of the many shear lines 25 at the boundary between the outer cylinder 12 and the cylinder frame 13. Vibration also occurs for a long time.

The sensor 17 detects the vibration of the cylinder frame 13 and sends a signal to the control mechanism 26. The control mechanism 26 continuously transmits the vibration signal 10
When the time has passed, electric power is sent to the lock mechanism 19 to operate the rod 20 to fit its tip into the rod fitting hole 18. As a result, the cylinder frame 13 is prevented from rotating, and the lock body 31 cannot be unlocked.

After the lock state of the lock mechanism 19 exceeds 30 minutes, the control mechanism 26 sends a signal to the lock mechanism 19 to release the lock state. At the same time or that
The front and rear control mechanism 26 also sends a signal to the vibration generator 32.
To generate vibration, but the vibration is the cylinder frame
13 is transmitted.

The transmitted vibration is transmitted to each shear line 25.
Each is the position of the boundary between the outer cylinder 12 and the cylinder frame 13.
If each shear line 25 is different from the original
It is to move it to the open position.

After the lock mechanism 19 is locked,
With each shear line 25 aligned, lock them
Wait for the release, and after releasing the locked state, open the cylinder frame 13.
There is a possibility that the lock will be unlocked illegally when turned. vibration
Transmission of each shear line 25 to its original position
Remove the possibility of fraudulent removal by moving to
It

According to the present embodiment, the unauthorized release of the lock
It can be stopped completely.

Although the battery 27 is used in this embodiment, the present invention is not limited to this, and an AC power source can be used instead of the battery 27.
Further, the battery 27 and the AC power source can be used together.

Further, in the present embodiment, when the vibration signal from the sensor 17 continues for 10 seconds or more, the control mechanism 26 sends electric power to the lock mechanism 19 to operate the rod 20. The time is not limited to the case where the signal continues for 10 seconds or more, and an arbitrary time can be set.

Further, in the present embodiment, the cylinder frame 1
Although the lock state in which the rotation of No. 3 is blocked is set to 30 minutes, the present invention is not limited to this, and any time can be set.

Further, although the sensor 17 is installed on the cylinder rotary plate 16 in the present embodiment, the present invention is not limited to this, and if the vibration of the cylinder frame 13 can be detected, the installation location of the sensor 17 will be set. It doesn't matter.

Further, although the rod fitting hole 18 for fitting the tip of the rod 20 is formed in the present embodiment, the present invention is not limited to this, and the rotation of the cylinder frame 13 can be prevented. It is only necessary to form, and instead of the rod fitting hole 18, a groove or the like in which the tip of the rod 20 can be engaged may be formed in the cylinder rotating plate 16.

Further, the lock mechanism 19 of the present invention may be one that can fix the cylinder frame 13 in a non-rotatable manner,
The dead bolt (not shown) that interlocks with the rotation of the cylinder frame 13, the link mechanism (not shown) that connects the cylinder frame 13 and the dead bolt, and the like to the lock mechanism 1
9 may be provided.

Further, in the present embodiment, the outer circumference of the outer cylinder 12
Although the vibration generator 32 is provided in the outer frame 1, the present invention is not limited to the outer frame 1.
2 If the vibration is transmitted to the cylinder frame 13 and the cylinder frame 13,
To achieve the installation position of the vibration generator 32.
It is not limited.

[0038]

According to the present invention, it is possible to prevent the tablet from breaking. In addition, it is possible to prevent unauthorized unlocking of the lock due to picking or the like.

[Brief description of drawings]

FIG. 1 is a front view of a cover showing a first embodiment.

FIG. 2 is a plan view of a key showing the first embodiment.

FIG. 3 is a plan view showing a usage state of the first embodiment.

FIG. 4 is a side view showing a usage state of the first embodiment.

FIG. 5 is a schematic configuration diagram showing a second embodiment.

[Explanation of symbols] 1 cover 2 cylinder parts 3 keys 4 insertion part 5 Handle part 6 connection part 31 lock body 12 outer cylinder 13 cylinder frame 14 keyhole 15 key slot 16 cylinder rotating plate 17 sensors 18 Fitting hole 19 Lock mechanism 20 rod 21 pin fitting hole 22 driver pins 23 Tumbler Pin 24 spring 25 shear lines 26 Control mechanism 27 battery 32 Vibration generator

Claims (2)

(57) [Claims] 1. A cover which is fixed to be non-rotatable, and an elongated connecting portion is formed between the insertion portion inside the cylinder and the handle portion while covering the exposed outdoor surface of the cylinder lock excluding the key insertion portion. And a connecting portion of the key is formed to be longer than the thickness of the key insertion portion of the cover, and is rotatably formed in the key insertion portion of the cover. Cylinder lock break prevention cover. 2. A sensor for detecting a vibration of a cylinder portion when a cylinder is locked and outputting a signal, a control mechanism for outputting a signal when a signal received from the sensor continues for a predetermined time, and the control mechanism. A lock mechanism for receiving a signal output from the lock mechanism for locking or unlocking a movable portion of a cylinder lock, and a vibration generating portion for transmitting a vibration to a cylinder portion, wherein the movable portion is locked. after the state a predetermined time, the control mechanism is the the lock mechanism to send a signal to release the locked state of the movable portion co Moshiku <br/> sends a signal to the vibration generating portion before and after A security cylinder lock that transmits vibration to the cylinder.