JP3337544B2 - Safe alarm device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a safe alarm device.

[0002]

2. Description of the Related Art An alarm device of a safe is set so that a main switch is turned ON / OFF when a lock device such as a dial lock provided on a door is locked / unlocked. Turns on by turning a sensor (switch) that responds to such external attacks or a handle provided on the door
It is well known that a sensing switch such as a switch is provided, and when these switches are turned on, the circuit is energized to emit an alarm sound or notify a security room.

In this case, if an alarm is issued by turning the steering wheel, an alarm can be issued at an early stage after the intruder enters, and there is an advantage that the antitheft property can be improved.

[0004]

Incidentally, as a habit of a person, there is a case where the locked state is confirmed by turning the handle of the door forward and backward unconsciously after the locking operation. However,
When the main switch is turned on, the conventional alarm device immediately enters a warning state in which an alarm is issued when the detection switch is turned on. If you turn the steering wheel to confirm, an alarm will be issued,
For this reason, there has been a problem that not only the surroundings are surprised but also the operation release requires time and effort.

An object of the present invention is to prevent this problem without impairing the function of the alarm device.

[0006]

According to the present invention, there is provided a safe including a main body which is opened forward, a door which is mounted on the main body so as to be able to open and close the opening of the main body, and a buzzer or the like. Means and a control circuit for driving the alarm means . The front of the door, and provided with a handle by a shaft passing through to the door pivotably, on the rear surface of the door, the
An interlocking member fixed to the shaft so as to rotate integrally with the handle, an operating rod slidably provided so as to be able to protrude from the outer peripheral surface of the door, and a dial lock or the like for holding the operating rod in a protruding state. A lock means is disposed, and the operating rod and the interlocking member are turned when the handle is turned in an unlocked state.
The operating rod is connected so as to fit into and
You. And, in conjunction with the interlocking member like the operating rod, the switch
The member to be ride is provided with the locking means by an unlocking operation.
Is provided with an engaging portion for engaging and disengaging the bar.
There is a slight play at the connection point between the
And an engaging portion of the sliding member and a locking hand.
By providing a slight play between the bar and the bar,
The handle and the interlocking member move slightly even in the locked state.
It is possible to come.

On the other hand, the control circuit comprises:
When the lock means is locked, the alarm means is energized, and when the lock means is unlocked, the power supply to the alarm means is turned ON and OFF by unlocking the lock means so that the power supply to the alarm means is cut off.
A main switch for OFF, the interlocking member that has a detection switch disposed in the vicinity of the interlocking member of the rear surface of the door to sense the operation, even by rotating within the play directly. And the main switch and the detection switch
Alarm means, the detection switch is a main switch and an alarm
By wiring in series so that it is located between
When both switches are turned on, the alarm means is activated.
The main switch and the detection switch
By inserting a delay circuit in the wiring to the switch ,
The time does not elapse appropriately after the in-switch is turned on
Does not energize the alarm means even if the detection switch is turned on
It is set as follows.

The "safe" in the present invention is a concept including general anti-theft furniture provided with a handle, a lock device, and an alarm device.

[0009]

With this configuration, even if the handle is rotated to check the locked state after the locking operation of the lock device and the detection switch operated by the handle is turned on, By setting the time during which the power is cut off by the delay circuit to a time short enough to rotate the handle, an alarm is issued when the handle is rotated to confirm the locked state. Can be prevented.

In this case, as a habit of a person, the handle is turned immediately after the locking operation of the locking device, and the energization cutoff time in the delay circuit is a short time of about 5 to 10 seconds, for example. It is not necessary to maintain the state of being alert and not being alert for a long time, so that the alarm function is not impaired. Therefore, according to the present invention, it is possible to prevent an alarm from being issued by turning the handle for confirming the locked state of the door without impairing the function of the alarm device.

[0011]

Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a main body having an open front surface, and reference numeral 2 denotes a horizontally pivotable door. A handle 4 is rotatably mounted on the surface of the door 2 via a shaft 3.

The shaft 3 of the handle 4 protrudes from the back surface of the door 2, and a cross-shaped interlocking member 5
Is fixed. The interlocking member 5 has a first vertically operating rod 6 extending toward the upper end of the door 2, a second vertically operating rod 7 extending toward the lower end of the door 2, and horizontally extending toward the free end of the door 2. The first lateral operation rod 8 is connected. Accordingly, when the handle 4 is rotated, each of the operating rods 6, 7, 8 slides in the longitudinal direction, and is disengaged from an engaging portion (not shown) of the main body 1.

A second horizontally long operating rod 9 is mounted on the back surface of the door 2 below the free end portion so as to be movable horizontally. The second horizontally long operating rod 9 and the second vertically long operating rod 7 are mounted. And are connected by a bell crank 10. Accordingly, the second horizontally long operating rod 9 is moved in conjunction with the vertical movement of the second vertically long operating rod 7 to move the main body 1.
Disengage from

A notch 7 formed in the second vertically long operating rod 7 is provided on a portion of the rear surface of the door 2 near the second vertically long operating rod 7.
Cylinder lock 1 provided with a bar 11a that engages and disengages from side
1 is provided. The keyhole of the cylinder lock 11 opens on the surface of the door 2.

An auxiliary operating rod 12 extending horizontally in a direction opposite to the first horizontally long operating rod 8 is connected to the interlocking member 5 of the handle 4, and is engaged with a lower edge of the auxiliary operating rod 12. A dial provided with a bar 13a which can be engaged with and disengaged from the locking portion 12a of the auxiliary operating rod 12 is provided as a locking means on a portion of the rear surface of the door 2 below the auxiliary operating rod 12 while bending the portion 12a. The lock 13 is attached.

Accordingly, each of the operating rods 6, 7, 8 is connected to the body 1
When the dial lock 13 is locked from the surface of the door 2 in a state where the lock is engaged, the bar 13a is engaged with the locking portion 12a of the auxiliary operation rod 12, and the door 2 is held in a locked state.

The forward link member 5 and each of the operating rods 6, 7, 8, 1
2 and between the engaging portion of the second vertically long operating rod 7 and the bar 11a of the cylinder lock 11, as well as the locking portion 13a with the auxiliary operating rod 12 and the bar 13a of the dial lock 13. There is a little play between the handle 2 and the handle 4 so that the handle 4 can be turned by a small angle while the door 2 is locked.

The dial lock 13 includes the bar 13a.
A limit switch type main switch 15 provided with a rotatable arm 15a is provided on the back surface of the door 2 on the side of the dial lock 13 while a pin 14 which moves integrally with the main switch 15 is provided. The arm 15a of the main switch 15 is connected to the pin 14 of the dial lock 13.
Is in contact with When the dial lock 13 is locked, the main switch 15 is turned on, and when unlocked, it is turned off.
It is set to become.

Further, a limit switch having a rotatable arm 16a as an example of a detection switch for detecting the rotation of the handle 4 is provided on a portion of the back surface of the door 2 beside the interlocking member 5. Arm 16a of the first detection switch 16 is provided.
Is locked to the interlocking member 5 by the pin 17 so that the detection switch 16 is turned on even if the handle 4 is rotated freely in the locked state.

Reference numeral 18 denotes a cover attached to the back surface of the door 2, and the cover 18 has a battery storage box (power supply).
19 and a circuit board 20 (the battery storage box 19 and the circuit board 20 may be provided on the back surface of the door 2, or the switches 15 and 16 may be mounted on the back surface of the cover 18). good). Reference numeral 21 denotes a buzzer as an example of an alarm unit.

As shown in FIG. 5, the power supply 19, the main switch 15, the first detection switch 16 and the buzzer 21 are arranged such that the main switch 15 is located closer to the power supply and the first detection switch 16 is located closer to the buzzer 21. The main switch 15 of the control circuit 22 is connected.
A delay circuit is interposed between the detection switch 16 and the detection switch 16 for appropriately interrupting the energization.

A bypass circuit 22a is provided in the control circuit 22 so as to straddle the delay circuit and the first detection switch 16. The bypass circuit 22a is turned on by the action of an external force such as vibration or heat. The second detection switch 23 is inserted (the second detection switch 23 may be inserted in series between the delay circuit and the buzzer 21).

In the above configuration, the door 2 is closed, and the operating rods 6, 7, 8 are engaged with the main body 1.
When the doors 1 and 13 are locked, the door 2 is locked and the main switch 15 of the alarm device is turned on. However, even if the handle 4 is turned to confirm the locked state, the buzzer 21 is not energized even if the first detection switch 16 is turned on due to the presence of the delay circuit.

When a short time elapses after the hand is released from the handle 4, power is supplied between the main switch 15 and the first detection switch 16 so that the buzzer 21 sounds when the handle 4 is turned. become.

In the above embodiment, a limit switch type switch is used as the main switch 15 and the first detection switch 16. However, another type of contact switch or a non-contact switch such as a photoelectric switch may be used. It goes without saying that various switch means such as a contact switch can be adopted.

Further, the main switch may be turned ON / OFF in connection with the unlocking of the cylinder lock. Further, it is needless to say that the lock device is not limited to a mechanical lock such as a dial lock or a cylinder lock as in the embodiment, but may be an electronic lock in which a key is input. In this case, a locking key is provided by an alarm device. Of the main switch.

Further, the alarm means is not limited to the buzzer, but may be, for example, a means for turning on a lamp or notifying a security room.

[Brief description of the drawings]

FIG. 1 is a perspective view of a safe.

2A is a sectional view taken along line AA of FIG. 4, and FIG.
FIG.

FIG. 3 is a rear view of the door.

FIG. 4 is an enlarged view of a main part of FIG. 3;

FIG. 5 is a conceptual diagram of a circuit of the alarm device.

[Description of Signs] 1 Safe body 2 Door 4 Handle 5 Interlocking member 6, 7, 8 Operating rod 11 Cylinder lock 12 Auxiliary operating rod 13 Dial lock 13a Dial lock bar rod 14 Pin 15 Main switch 16 First detection switch 19 Battery compartment 21 Buzzer

 ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-57-45691 (JP, A) JP-A-60-76486 (JP, U) JP-A-44-29917 (JP, Y1)

Claims (1)

(57) [Claims] 1. A main body which is opened forward, a door which is mounted on the main body so as to be able to rotate horizontally to open and close an opening of the main body, an alarm means such as a buzzer, and a control circuit for driving the alarm means. comprises a on the front surface of the door, and provided with a handle rotatably by a shaft passing through to the door, on the rear surface of the door, prior to pivot to the handle and integral
An interlocking member fixed to the shaft, an operating rod slidably provided so as to protrude from the outer peripheral surface of the door, and a lock means such as a dial lock for holding the operating rod in a protruding state are arranged.
The operating rod and the interlocking member rotate the handle in an unlocked state.
When this is done, the operating rod is
Are, part of the slide in conjunction with the interlocking member, as the operating rod
The bar of the lock means is disengaged by the unlocking operation of the material.
Is provided at the connection point between the interlocking member and the member connected thereto.
A slight play is provided and the sliding member is engaged.
Slight play is also provided between the joint and the lock bar.
As a result, even in the locked state,
Can be moved slightly, while the control circuit unlocks the locking means so that the alarm means is energized when the locking means is locked and the alarm means is cut off when the locking means is unlocked. A main switch for turning on / off the power supply to the alarm means by means of a detector, and a detection switch disposed near the interlocking member on the rear surface of the door so as to directly detect the rotation of the interlocking member even within a play range. A switch for detecting the main switch, the detection switch and the alarm means.
The intelligent switch is located between the main switch and the alarm.
By connecting the switches in series as shown in FIG.
And alarm means becomes N is set to operate, further, in the wiring between the main switch and the detection switch
By and through Sasuruko the delay circuit, the main switch is ON
If the time does not elapse as soon as
It is set not to energize the alarm means even if it becomes N
Alarm device in a safe.