JP2005009195A - Lock with alarm device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lock with an alarm device which can issue an alarm against a fraudulent act applied to the lock such as a crescent lock, a handle lock and a latch lock, mounted on a paned window and a door, and which prevents an alarm operation from being caused by a malfunction. <P>SOLUTION: This lock such as the crescent lock, the handle lock and the latch lock, for use in the paned window and the door, is equipped with: a detection means which is equipped with a detection stand-by mode for detecting abnormal vibrations to the window and the door or a window frame and a door frame; an alarm means which makes a setting into an alarm stand-by mode while a predetermined time passes based on a signal from the detection means, and which issues the alarm when an opening operation of the lock is performed during the alarm stand-by mode; and an anti-malfunction means which can release the operation of the alarm means in the wrong setting into the alarm stand-by mode. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lock with an alarm device capable of detecting and alarming an unauthorized unlocking performed on a lock fitted to a sliding door or a hinged window or a door fitted with glass.
[0002]
[Prior art and problems to be solved by the invention]
Conventionally, sliding doors and hinged door windows and doors attached to house windows and living rooms, gas outlets, smoke outlets, etc. are constructed with glass fitted in consideration of daylighting. In order to lock the door, locks (imposition locks) such as crescent locks, handle locks, and latch locks are attached, and windows and doors can be locked. Locks such as the above-mentioned crescent locks, handle locks, latch locks, etc. have an operation lever and an action portion as a locking portion that is operated by the operation lever as a general structure, and a locking portion provided on a sliding door or the like. The above-mentioned action portion is locked to lock the window or door.
[0003]
In recent years, there has been a crime in which a glass window having such a lock such as a crescent lock or a handle lock is broken by locally heating the glass, inserting a tool from the damaged portion, and unlocking it. It has occurred. Among the locks corresponding to such unauthorized unlocking, for example, the crescent lock is provided with a guard cover that covers the operation portion of the crescent lock as disclosed in Patent Document 1 or 2, or the operation portion is in the unlocking direction. There has been proposed a device provided with an unlocking prevention mechanism that prevents rotation.
[0004]
However, since the method of damaging the glass has become so clever that a relatively large hole can be made in the glass, even with a lock fitted with the guard cover or a crescent lock with an unlocking prevention mechanism, the arm is inserted. It is now possible to easily perform unauthorized unlocking, and other crime prevention devices have been eagerly desired.
In addition, an alarm device that is attached to glass as an alarm device for detecting glass vibration has also appeared, but this alarm device is configured to generate an alarm sound as soon as vibration is detected. As the alarm device malfunctions due to the detection of the glass vibration caused by, the appearance of an alarm device with high detection accuracy has been eagerly desired.
[0005]
Therefore, the present invention is capable of alarming fraudulent acts performed on locks such as crescent locks, handle locks, and latch locks mounted on windows and doors having glass, and performing alarm operations by malfunctions. The purpose is to provide a lock with no alarm device.
[0006]
[Patent Document 1]
Japanese Patent Laid-Open No. 9-78901 [Patent Document 2]
Japanese Patent Laid-Open No. 11-101038
[Means for Solving the Problems and Effects of the Invention]
In order to achieve the above-mentioned object, the lock with an alarm device of the present invention is a lock such as a glass-equipped window or a crescent lock for a door, a handle lock, a latch lock, etc., for a window or door, or a window frame or door frame. The detection means having a detection standby mode for detecting abnormal vibration and the alarm standby mode are set for a predetermined time based on a signal from the detection means, and the unlocking operation is performed during the alarm standby mode. It is characterized by comprising alarm means for giving an alarm when it is made, and a malfunction prevention means capable of releasing the operation of the alarm means when the alarm standby mode is erroneously set.
[0008]
The alarm device lock having the above-described configuration includes a detection unit having a detection standby mode and an alarm unit. Therefore, when vibration is detected when the glass is broken, the alarm device is set to the alarm standby mode and If the unlocking operation is performed while a predetermined time elapses in the mode, it is determined that the lock is unlocked, an alarm is issued, and the unlocking can be more reliably determined by two-step detection.
The alarm means detects the vibration and is set to the alarm standby mode. However, if the alarm means is erroneously set due to vibration due to normal use during locking, the alarm standby mode is canceled by the malfunction prevention means. Thus, the alarm means can be deactivated, and the alarm device can be reliably operated only when it is necessary to monitor unauthorized unlocking without malfunction.
[0009]
Further, in the locking device of the alarm device according to claim 2 of the present invention, the malfunction prevention means cancels the alarm standby mode automatically after a predetermined time elapses and / or cancels the mode manually. The alarm standby mode can be automatically canceled as long as the unlocking operation is not performed even if the alarm standby mode is set due to the vibration of the glass caused by strong wind or the like. . In addition, if vibration is detected and the alarm standby mode is set when the lock is locked, the mode can be canceled manually, so that the alarm device is only activated when it is necessary to monitor unauthorized unlocking. It can be operated reliably.
[0010]
The alarm device lock according to claim 3 of the present invention is configured so that the malfunction prevention means is set to the detection standby mode again after a predetermined time has elapsed when the alarm standby mode is automatically canceled. Therefore, when the alarm standby mode is automatically canceled due to strong winds, etc., it can be set to the detection standby mode again after a predetermined time, preventing malfunction and automatically Since it can be set to the detection standby mode, even if there is a malfunction, it can be automatically set to the detection standby mode again, and only when there is an abnormality can be detected more reliably.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view of a crescent lock showing an embodiment of the present invention, FIG. 2 is a front view of an alarm device, FIG. 3 is a sectional view, and FIG. 4 is a block diagram of the alarm device.
The lock 1 with an alarm device according to the embodiment of the present invention shows a crescent lock 10 in this example, and the crescent lock 10 can be rotated to the lock base 11 and a lock base 11 serving as an attachment base as a schematic configuration. The lock base 11 includes a mounted crescent 12 and a crescent receiver 13 mounted on the side of the glass door.
[0012]
In the crescent lock 10, the crescent 12 and the crescent receiver 13 have substantially the same configuration as the conventional one, and the lock base 11 supports the crescent 12 and has an alarm device 20 inside. As shown in FIG. 2, the alarm device 20 is configured separately from the crescent lock 10 and can be attached later to the existing crescent lock 10. The crescent 12 of this embodiment shows a configuration example of a keyed crescent.
[0013]
As shown in FIG. 4, the alarm device 20 includes a power source unit 21, a vibration sensor unit 22, a microcomputer 23, an alarm unit 24, a photo sensor 25, a voltage monitoring unit 26, and two display lamps 27 and 28. is there. The power supply unit 21 includes, for example, a known button-type lithium battery, and supplies power to the microcomputer 23 via a constant voltage generation circuit. The vibration sensor unit 22 detects vibration added to the glass door and sends a detection signal to the microcomputer 23, and the microcomputer 23 controls operations described later based on the detection signal. The alarm unit 24 can sound an alarm sound of 90 decibels or higher, or can emit an alarm lamp. The photo sensor 25 monitors the operation of the crescent 12 and is provided with a light emitting portion and a light receiving portion that face the crescent 12. When the rotation of the crescent 12 is detected, the photo sensor 25 moves to the microcomputer 23. A detection signal can be output. The voltage monitoring unit 26 monitors whether or not the built-in battery holds a specified voltage, and outputs a detection signal when the voltage becomes lower than the specified voltage. One of the two display lamps 27 and 28 is an alarm lamp, and is blinked or turned on according to the stage of the alarm operation. The other one is when the voltage falls below the specified voltage. Although it is for alerting to light and all are comprised by red LED (liquid semiconductor light-emitting device), the luminescent color can be selected arbitrarily. As the voltage monitoring lamp, a lamp that emits green light during normal operation, changes to orange when the voltage decreases, and turns off when the voltage becomes inoperable can be adopted.
[0014]
Next, the operation of the lock with alarm device 1 will be described. The crescent lock 10 is usually used for locking two or more sliding doors, and the lock base 11 is used as a window frame or window frame of a glass door. And the crescent receiver 13 is attached to the other window frame.
Then, a switch (not shown) is turned on while the crescent lock 10 is locked, and the alarm device is set in an operating state (detection standby mode). When vibration is applied to the glass or the window frame in this mode, the vibration sensor 22 in the lock base 11 detects the vibration and outputs a detection signal to the microcomputer 23. The microcomputer 23 receives this signal and switches to the alarm standby mode.
[0015]
In the alarm standby mode, the microcomputer 23 sets the alarm display lamp 27 in the alarm standby mode so as to blink, and starts counting the elapsed time set in the alarm standby mode.
This time is counted in order to determine whether the vibration to the glass door is caused by a suspicious person or whether the vibration is caused by reasons other than the suspicious person. Will attempt to open the crescent 12 within a relatively short period of time after the glass door is vibrated, that is, when the glass is broken, so that the series of operations will be monitored. It is what. Accordingly, after the alarm standby mode is set, if the crescent 12 is rotated during the operation of this mode, a detection signal from the photo sensor 25 is output. For this reason, it is determined that the suspicious person has illegally entered, an alarm sound is generated from the alarm device 20, and the display lamp 27 is turned on or displayed in a rapidly blinking state. The time set in the alarm standby mode can be set arbitrarily, and it is set to an optimal time taking into account various requirements such as door and window installation conditions. It is presumed that the action of turning the crescent 12 in a relatively short time after the glass is broken within this time period can be set in consideration of such conditions.
[0016]
On the other hand, the alarm device 20 is set to the alarm standby mode by detecting the vibration to the glass or the window frame. However, in the case other than the occurrence of the vibration caused by the suspicious person, the above mode can be canceled. Thus, when the set time elapses, the mode is automatically canceled and the detection standby mode is restored.
As a mode for manually releasing the alarm standby mode, in the case of a crescent lock with a key as in this embodiment, the key can be inserted into the release key hole 29 to be released. By configuring in this way, the malfunction can be arbitrarily canceled, so that the set time for the alarm standby mode can be set more freely. Further, since the key attached to the crescent lock can be used, the management of the key becomes easy. By adopting a configuration that is released with a key, it is possible to provide a lock that is safer in terms of security than a configuration using a switch or the like.
[0017]
When the alarm standby mode due to malfunction is canceled, the original alarm monitoring mode is restored again. However, in the case of the keyed crescent lock, after the crescent key is removed, the alarm monitoring mode is entered after a predetermined time. It can also be set as follows. Since there is a case where the operator of the crescent key accidentally touches the glass door etc. and vibrates, it is further possible to enter the alarm monitoring mode after a certain period of time after the operation of the crescent key. It is possible to reliably prevent malfunction.
[0018]
In addition, as a configuration for starting the operation of the alarm device 20, in addition to a configuration equipped with an ON-OFF switch, the crescent 12 is locked using the photosensor 25 for monitoring the rotation of the crescent 12. In the case of a detecting structure or a crescent lock with a key, a structure in which starting and ending are arbitrarily set by a key can be adopted, and a configuration in which the alarm standby mode is canceled by a suspicious person can be adopted.
The voltage monitoring unit 26 monitors the voltage of the built-in power supply. For example, in the case of a 3.0V button type lithium battery, the display lamp 28 blinks or changes color when the voltage drops to about 2.7V. When the voltage drops below that, the display lamp 28 can be turned on or off. As a voltage monitoring method, when the alarm device 20 is configured to be able to be turned on and off, the green lamp is used if the voltage is normal only when the power is turned on in consideration of the degree of battery consumption. May be lit for a short time.
[0019]
In addition, the alarm means can be configured to emit a radio signal, can be installed at a location away from the receiving section and can operate an alarm means such as a buzzer, and the receiving section can provide a reporting means to the security company. It can also be set as the structure to incorporate.
Furthermore, as a sensor for detecting the rotation of the crescent 12, in addition to the photo sensor 25 as described above, a proximity sensor using magnetism can be used. Further, a sensor or the like that is mounted on the axis of the crescent 12 can also be employed.
[0020]
As a configuration of the lock with the alarm device, in addition to the above-described crescent lock, a latch lock 30 may be used as shown in FIGS. The latch lock 30 can be configured so that an alarm device 32 can be incorporated in the lock body 31. As shown in FIGS. 5 and 6, the photo sensor 33 is provided on both sides of the protruding portion of the latch. As shown in the figure, the detection direction of the photosensor 33 can be selected from either a horizontal direction or a vertical direction. The other configuration of the latch lock 30 is formed in substantially the same manner as that of the above-described embodiment, and a configuration employing a keyed latch lock can also be selected.
[0021]
In addition, as shown in FIG. 7, the handle type lock 40 may be configured to include an alarm device 41. Furthermore, in addition to the above-mentioned crescent lock, latch lock, handle lock, it can be applied to a lock attached to a window or door, for example, the invention can also be implemented as an alarm device for a thumb turn mounted on a door lock etc. It is.
And as a window and door with glass, in addition to sliding doors and hinged doors, it may be configured to be installed in house windows and living rooms, outlets, smoke vents, etc., especially glass that is easily hacked into. The present invention can be suitably applied to locks that are attached to windows and doors.
[Brief description of the drawings]
FIG. 1 is a perspective view of a crescent lock showing an embodiment of the present invention.
FIG. 2 is a front view of the alarm device.
FIG. 3 is a cross-sectional view of a crescent tablet.
FIG. 4 is a block diagram of an alarm device.
FIG. 5 is a perspective view of a latch lock as another embodiment of the present invention.
FIG. 6 is a perspective view of a latch lock as still another embodiment of the present invention.
FIG. 7 is a perspective view of a handle lock as another embodiment of the present invention.
[Explanation of symbols]
1 Lock with alarm device 10 Crescent lock 20, 32, 41 Alarm device 22, 33 Vibration sensor 23 Microcomputer 26, 27 Display lamp G Glass

Claims (3)

Detection means with detection standby mode that detects abnormal vibrations on windows and doors, or window frames and door frames, such as glass-equipped windows and door crescent locks, handle locks, and latch locks, and detection Based on the signal from the means, the alarm standby mode is set while a predetermined time elapses, and the alarm means for issuing an alarm when the unlocking operation is performed during the alarm standby mode, and the alarm standby mode is incorrect. And a malfunction prevention means capable of releasing the operation of the alarm means when set. The alarm device lock according to claim 1, wherein the malfunction prevention means is configured to automatically cancel the alarm standby mode after a predetermined time has elapsed and / or to manually cancel the mode. . 3. The lock with an alarm device according to claim 2, wherein the malfunction prevention means is configured to be set to the detection standby mode again after a predetermined time has elapsed when the alarm standby mode is automatically canceled.

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