JPH0325263Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the structure of an alarm device in a safe.

[Conventional technology and its issues]

Generally, when a stationary safe placed on the floor or the like is tipped over, shaken, or subjected to an impact force in order to be taken away, the vibration and impact force is detected and a buzzer is activated. It is common practice to provide such an alarm device.

By the way, this type of alarm device is composed of a battery, an electric circuit part, a buzzer, a sensing switch, etc., but conventionally, these parts were attached to the inside surface of the door of a safe or the inside surface of the door. Since the structure is configured such that each part is attached separately to the cover plate and connected via wiring, it takes a lot of time to install each part and wire the parts, and it is difficult to connect each part. When replacing the alarm, the wiring had to be removed one by one, making maintenance and inspection of the alarm device time-consuming.

In addition, if a sensing switch is provided to activate a buzzer when vibrations or shocks are applied to the safe, the alarm device can be deactivated when the safe is moved to a predetermined installation location, etc. Since a reset switch is required, not only does this increase costs, but it also causes problems due to forgetting to set the reset switch to the set state.
There was also the problem that the alarm system sometimes did not work.

Furthermore, conventional alarm devices were only equipped with a detection switch that was activated by applying a shock to or moving the safe, so if a burglar broke into the safe, it would be difficult to apply a shock to or move the safe. If the door is opened without moving or impacting the safe, the alarm system may not work at all, and the alarm function is incomplete. There was also a problem with the points.

The present invention aims to provide an alarm device that solves these problems.

[Means to solve the problem]

In order to achieve this purpose, the present invention has a door rotatably attached to the front opening of the safe body, and a handle provided on the front side of the door can be rotated on the inside surface of the door. A bar bolt is provided that is engaged with and detached from the safe body by operation, and a cylinder lock is attached to the door, and the cylinder lock is held in a state in which the bar lock is locked to the safe body by locking the cylinder lock. A safe is provided in such a manner that a bar lever can be freely engaged and detached from the safe body when the cylinder lock is unlocked, and a main switch is provided on the inner surface of the door and is turned on when the cylinder lock is locked and turned off when the lock is released; A first sensing switch is provided that turns on when the bar lever moves in a direction to disengage from the safe body, and a case is removably attached to a cover plate that covers the inner surface of the door, and inside the case, a second sensing switch that turns ON when an external force acts on the safe, a buzzer, a battery, and at least one of the first sensing switch and the second sensing switch when the main switch is ON; An electric circuit is provided in each case so that the buzzer is activated when the buzzer is turned on, and various parts in the case are connected to the main switch and the first sensing switch using wiring equipped with a detachable connector. did.

[Functions and effects of the idea]

In this configuration, when the cylinder lock is locked and the door is locked to the safe body, the main switch is turned on by the locking operation, and the alarm is set.

In this alarm set state, when a thief attempts to open the door by turning the handle, the handle and bolt may have some play, so the bolt may open.
There is a slight movement in the direction of disengagement from the main body of the safe, and as a result, the first detection switch turns ON and the buzzer activates, so in the early stages of a burglar's intrusion, the door is locked. , the occurrence of an abnormal situation can be notified by a buzzer. On the other hand, if a thief shakes the safe to take it away or applies a shock to destroy it, the second sensing switch detects the external force against the safe. hand
It will turn on and activate the buzzer to issue an alarm.

When the owner of the key to the cylinder lock unlocks the cylinder lock, the main switch turns OFF and the buzzer stops operating. When the lock is unlocked, the main switch
Since it is turned off, the safe can be used without activating the alarm system.

Therefore, according to the present invention, the alarm device for the safe can be automatically activated by locking and unlocking the cylinder lock for locking the door of the safe.
Since it is possible to switch between the alarm set state and the alarm non-operating state, it is possible to eliminate the effort required to switch between the alarm set state and the alarm non-operating state, and it is also possible to switch to the alarm set state as in the conventional case. This has the effect of reliably preventing the occurrence of forgetting something.

In addition, as a means of detecting abnormal situations in the safe,
A first sensing switch that detects movement of the bolt and a second sensing switch that senses impact or movement of the safe are provided, and at least one of the sensing switches is ON.
I configured the buzzer to activate when
Not only if the safe is destroyed or taken away, but also if the door is opened without impacting the safe, it will be possible to issue an alarm at the initial stage of intrusion and prevent abnormal situations in the safe. This allows the alarm function to be significantly improved.

Furthermore, since the parts housed in the case and the first and second sensing switches are connected by wiring equipped with removable connectors, by separating the connectors, the case and the first and second sensing switches can be connected. The sensing switch can be installed and removed individually without having to worry about wiring, and the work efficiency of installing, maintaining, and inspecting the alarm device can be improved.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 indicates a door that is attached to the safe body 2 so as to be openable and closable. The surface of the door 1 is equipped with a dial lock, an electronic code lock, etc. A main lock 3, a cylinder lock 4, and a rotary handle 5 for opening and closing the door 1 are attached, and in a recess on the inner surface of the door 1, when the door 1 is closed, the safe is closed. Running plates 8, 8' are provided which are interlocked with a plurality of bar rods 7, 7', 7'' which protrude and engage with appropriate locations on the main body 2.

The engagement piece 10 of the cylinder lock 4 is engaged with and disengaged from the protrusion 9 on one of the running plates 8 and 8', and the protrusion 9' on the other running plate 8' Engagement piece 1 in lock 3
Only when the cylinder lock 4 and the main lock 3 are unlocked by locking/unlocking the cylinder lock 4 and the main lock 3, both running plates 8,
8' moves up and down, and the bolts 7, 7', 7'' move in and out.

In this case, when the door 1 is locked in the safe body 2, between the engagement protrusion 9 on one running plate 8 and the engagement piece 10 on the cylinder lock 4, and
The engaging piece 9' on the other running plate 8' and the main lock 3
By forming a slight gap between the handle 5 and the engagement piece 10', the handle 5 is configured to rotate by a certain angle in the locked state. Rod 7,
Provide some play at 7' and 7''.

Symbol SW1 indicates a main switch associated with the protruding pin 11 of the cylinder lock 4, which is turned on when the cylinder lock 4 is locked and turned off when the lock is released. When the two running plates 8, 8' are operated to move the bar bolts 7', 7'' in the disengagement direction with respect to the safe body 2, it turns ON.In other words, the handle is turned on with the door 1 locked. The main switch SW1 and the first sensing switch SW2 are attached to the inner surface of the door 1.

Reference numeral 12 denotes a cover plate that covers the recess in the door 1, and a hole 13 formed in the cover plate 12.
A synthetic resin case 14 containing the main parts of the alarm device according to the present invention is removably attached to the housing.

That is, this case 14 is composed of a case body 14' in which the above-mentioned main parts are attached, and a lid body 16 that is attached to the case body 14' with screws 17. A claw piece 15 is provided on the outer surface to engage with the back surface of the cover plate 12 when the case 14 is inserted into the hole 13 in the cover plate 12.

Inside the case body 14', a board 21 is provided which includes a buzzer 18, a battery 19, and an electric circuit 20, which will be described in detail later.The board 21 detects vibrations and shocks applied to the safe. and ON
A mercury switch 24 is provided as an example of a second sensing switch, and the terminals on this board 21 and the main switch SW1 and the first sensing switch SW2 are connected by detachable connectors 22, 2.
Connect with the wiring provided with 3.

Then, the electric circuit 20 on the board 21
, with the main switch SW1 turned on,
When either or both of the first sensing switch SW2 and the mercury switch 24 are turned ON, the buzzer 18 is activated by the excitation of the self-holding relay R, and the main switch SW1 is activated.
When turned off, the buzzer 18 is configured to stop operating.

Note that the board 2 on which the mercury switch 24 is attached
1, the board 21 is attached to the case body 14'.
is pivotally mounted to be rotatable about a shaft 25 at the upper end thereof, and by screwing an adjusting screw 27 fitted into the circular arc slot 26 in the lid body 16 to the lower end thereof, The sensitivity of the mercury switch 24 can be adjusted by adjusting the tilt.

With this configuration, when the door 1 of the safe is closed and the bar rods 7, 7', 7'' are projected and engaged with the safe body 2, the cylinder lock 4 is operated to lock the door 1. In conjunction with this, the main switch SW1 is turned on, so the alarm is set.

When the robber turns the handle 5 in this locked state, each of the bolts 7, 7', 7'' moves by a small amount in the direction of disengaging from the safe body 2, and the first sensing switch SW2 is activated. Turn on buzzer 18
is activated, it is possible to issue an alarm at the early stage of a burglar's intrusion, and even if door 2 is successfully opened without moving or impacting the safe, it will not be possible to open door 1. When the bar lever 7'' moves in the direction of disengaging from the safe body 2, the first sensing switch SW2 is always turned ON and the buzzer 1 is activated.
8 will be activated.

On the other hand, if the thief shakes or shocks the safe, the mercury switch 24 is turned on and the buzzer 18 is activated.

Moreover, when the cylinder lock 4 is unlocked,
Since the main switch SW1 is turned off, the operation of the buzzer 18 is stopped and the alarm is in a non-operating state.

Since the main components are integrated into the case 14, handling of the components is extremely easy.Moreover, the electric circuit 21 provided in the case 14, the main switch SW1, and the first sensing switch SW2 can be easily connected to each other.
After connecting the wires with the removable connectors 22 and 23, the work of attaching and detaching the case 14 to the cover 12 and the main switch SW are completed.
1 and the first sensing switch SW2 to the door 1 can be easily performed without having to worry about wiring, and the installation work and maintenance/inspection of the alarm device can be performed efficiently.

[Brief explanation of drawings]

Figure 1 is a perspective view of the safe, Figure 2 is a view of the door of the safe from inside, and Figure 3 is the same as in Figure 2.
4 is a front view of the case, FIG. 5 is a sectional view of FIG. 4, and FIG. 6 is a sectional view of FIG. 4.
7 is a cross-sectional view of FIG. 4,
FIG. 8 is a diagram showing an electric circuit. 1... Door, 2... Safe body, 4... Cylinder lock, 7, 7', 7''... Bar rod, 14... Case, 1
4'...Case body, 16...Lid plate, 12...Cover plate, 18...Buzzer, 19...Battery, 20...
...Electric circuit, 21... Board, SW1... Main switch, SW2... First sensing switch, 24...
A mercury switch is an example of a second sensing switch.

Claims (1)

[Scope of utility model registration request] A door for the opening is rotatably attached to the front opening of the safe body, and a bar is provided on the inner surface of the door to engage and disconnect from the safe body by rotating a handle provided on the front side of the door. A rod is provided on the door, and a cylinder lock is attached to the bar, and when the cylinder lock is locked, the bar is held in a locked state to the safe body, and when the cylinder lock is unlocked, the bar is locked to the safe body. In a safe that is installed so that it can be freely connected to and removed from the
Turn on by locking the cylinder lock on the inside surface of the door.
and a main switch that turns off when the lock is released.
A first sensing switch is provided that turns on when the bar lever moves in the direction of disengaging from the safe body;
A case is detachably attached to a cover plate that covers the inner surface of the door, and a second sensing switch that turns on when an external force is applied to the safe, a buzzer, and a battery are included in the case. The main switch
An electric circuit is provided in which the buzzer is activated when at least one of the first sensing switch and the second sensing switch is turned on in the ON state, and various parts in the case and the main switch and with the first sensing switch,
A safe alarm device characterized by being connected by wiring with a detachable connector.