JPH07189554A - Warning device of safe - Google Patents

Abstract

PURPOSE:To prevent the circumferential persons from being shocked by action of a warning device when a handle is operated to rotationally move for confirming the locked condition after locking a lock device, in the warning device of a safe which is related to a door handle and a lock device, and makes the warning device ON at locking a door. CONSTITUTION:In the circuit 22 of a warning device, a delay circuit is interposed between a main switch 15 and a detecting switch 16 related to a handle 4. By existence of the delay circuit, current is not carried to the detecting switch 16 for a proper time after locking, and hence output of warning can be prevented when the handle 4 is rotationally moved for confirming the locked condition.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art An alarm device for a safe is set so that a main switch is turned on and off when a lock device such as a dial lock provided on a door is locked and unlocked. It is turned on by a sensor (switch) that responds to external attacks such as this, or by turning the 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 the guard room.

In this case, if the alarm is issued by rotating the handle, the alarm can be issued at an early stage after the bandit has entered, so there is an advantage that the anti-theft property can be improved.

[0004]

By the way, as a habit of a person, there is a case where the door handle is unintentionally rotated in the forward and reverse directions after the locking operation to check the locked state. However,
In the conventional alarm device, when the main switch is turned on, the alarm system is immediately activated by turning on the detection switch. Therefore, if the alarm device is provided with a switch that reacts to the turning of the handle, the alarm state is set. If you rotate the handle to check, an alarm will be issued,
For this reason, there is a problem that not only the surroundings are surprised, but also it takes time to release the operation.

The present invention aims to prevent this problem without impairing the function of the alarm device.

[0006]

In order to achieve this object, the present invention relates to "a back side of a door provided on a main body which is openable and closable, and an operating rod which is detachably attached to the main body, and the operating rod is attached to the main body. A lock means such as a dial lock for holding the locked state is provided, a handle for operating the operating rod is rotatably mounted on the front surface of the door, and an alarm device such as a buzzer is locked to the lock. A main switch is provided so as to be turned on when the device is locked, and a detection switch is provided in the circuit of the alarm device so as to issue an alarm when the handle is turned while the main switch is on. And a delay circuit adapted to energize after a lapse of a certain period of time since the main switch is turned on.

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.

[0008]

With this structure, even if the lock device is locked and then the handle is turned to confirm the locked state, the detection switch operated by the handle is turned on. By setting the time to cut off the power supply with the delay circuit to a time that is sufficient for rotating the handle, it is possible to prevent an alarm from being issued when the handle is rotated to confirm the locked state. it can.

In this case, as a habit of a person, the locking device is locked and the handle is immediately rotated, and the energization interruption time in the delay circuit is short, for example, about 5 to 10 seconds. There is no need to maintain a vigilant state for a long time, so the alarm function will not be 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.

[0010]

2. Description of the Related Art Next, embodiments of the present invention will be described with reference to the drawings. In the figure, reference numeral 1 is a main body having an open front surface,
Reference numeral 2 indicates a horizontally rotatable door, respectively. A handle 4 is rotatably attached to the front surface of the door 2 via a shaft 3, and a cross-shaped interlocking member 5 is fixed to a portion of the shaft 3 of the handle 4 projecting to the back surface of the door 2, This interlocking member 5 has a door 2
A first vertical operating rod 6 extending toward the upper end of the door, a second vertical operating rod 7 extending toward the lower end of the door 2, and a first horizontal operating rod 8 extending horizontally toward the free end of the door 2. Then, when the handle 4 is rotated, the operating rods 6, 7 and 8 slide in the longitudinal direction thereof to engage with and disengage from the engaging portion (not shown) of the main body 1.

A second laterally elongated operating rod 9 is horizontally movably attached to a lower portion of the rear surface of the door 2 near the free end thereof, and the second laterally elongated operating rod 9 and the second vertically elongated operating rod 7 are connected to each other. It is connected by a bell crank 10 so that the second horizontally long operating rod 9 is engaged with and disengaged from the main body 1 in conjunction with the vertical movement of the second vertically long operating rod 7. A notch 7a formed in the second vertically elongated operating rod 7 is provided in a portion of the back surface of the door 2 close to the second vertically elongated operating rod 7.
Cylinder lock 11 with bar bar 11a that engages and disengages from the side
Is provided. The key hole of the cylinder lock 11 is opened on the surface of the door 2.

The interlocking member 5 of the handle 4 is connected with an auxiliary actuating rod 12 which extends horizontally in a direction opposite to the first laterally elongated actuating rod 8 and is locked to a lower end edge of the auxiliary actuating rod 12. While the portion 12a is bent and formed, a dial provided with a bar 13a that can be engaged with and disengaged from the locking portion 12a of the auxiliary operating rod 12 as a locking device at a portion of the back surface of the door 2 below the auxiliary operating rod 12. Wearing the lock 13.

Therefore, each of the operating rods 6, 7 and 8 has the main body 1
When the dial lock 13 is locked from the surface of the door 2 in a state of being engaged with, the bar 2a is engaged with the locking portion 12a of the auxiliary actuating rod 12 and the door 2 is held in a locked state. A connecting portion between the front interlocking member 5 and the operating rods 6, 7, 8, 12 and an engaging portion of the second longitudinal operating rod 7 and a bar rod 11a of the cylinder lock 11.
There is some play between the lock lever 13a of the dial lock 13 and the engaging portion 13a of the auxiliary actuating rod 12, and therefore the handle 4 is slightly angled when the door 2 is locked. Can only rotate.

The dial lock 13 has the bar bar 13a.
A limit switch type main switch 15 having a rotatable arm 15a is provided on the rear side of the door 2 on the side of the dial lock 13 while a pin 14 that moves integrally with And the arm 15a of the main switch 15 is connected to the pin 14 of the dial lock 13.
When the dial lock 13 is locked, the main switch 15 is turned on, and when unlocked, the main switch 15 is turned off.

Further, as an example of a detection switch for detecting the rotation of the handle 4, a limit switch equipped with a rotatable arm 16a is provided at a portion of the back surface of the door 2 on the side of the interlocking member 5. The first detection switch 16 of the type is provided, and the arm 16a in the first detection switch 16 is provided.
By locking the tip of the handle to the interlocking member 5 with the pin 17, the detection switch 16 can be turned on only by idle rotation of the handle 4 in the locked state.

Reference numeral 18 is a cover mounted on the back surface of the door 2, and this cover 18 has a battery storage box (power source).
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 both switches 15 and 16 may be mounted on the back surface of the cover 18). good). Reference numeral 21 is a buzzer as an example of the alarm means.

As shown in FIG. 5, with respect to the power source 19, the main switch 15, the first detection switch 16 and the buzzer 21, the main switch 15 is located closer to the power supply and the first detection switch 16 is closer to the buzzer 21. The control circuit 22 is wired so as to be positioned, and the main switch 15 of the control circuit 22 is connected.
A delay circuit for interrupting energization for a suitable time is inserted between the detection switch 16 and the detection switch 16.

A bypass circuit 22a is provided in the control circuit 22 so as to straddle the delay circuit and the first detection switch 16, and the bypass circuit 22a is turned on by the action of external force such as vibration or heat. The second detection switch 23 is inserted (this second detection switch 23 may also be inserted between the delay circuit and the buzzer 21). In the above configuration,
Close the door 2 and engage the operating rods 6, 7 and 8 with the main body 1,
When both locks 11 and 13 are locked in that state, the door 2 is locked and the main switch 15 of the alarm device is turned on. However, even if the handle 4 is rotated 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.

Then, after a little time has passed since the handle 4 was released, the main switch 15 and the first detection switch 16 are energized and the buzzer 21 sounds when the handle 4 is rotated. become. In the above embodiment, the limit switch type is used as the main switch 15 and the first detection switch 16, but it may be a contact type switch of another form or a non-contact type switch such as a photoelectric switch. Needless to say, various switch means can be adopted.

Further, the main switch may be turned on / off in association with unlocking of the cylinder lock. Further, it goes without saying 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 for key input. In this case, the locking key is an alarm device. It can also be used as the main switch of.

Furthermore, the alarm means is not limited to the buzzer, but may be, for example, a lamp that is turned on or a notification to the security room.

[Brief description of drawings]

FIG. 1 is a perspective view of a safe.

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

FIG. 3 is a rear view of the door.

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

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

[Explanation of symbols]

 1 Main body of safe 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 14 Pin 15 Main switch 16 First detection switch 19 Battery compartment 21 Buzzer

Claims (1)

[Claims] 1. A door provided on the main body, which is openable and closable, is provided with an operating rod which is engageable with and disengageable from the main body, and a locking means such as a dial lock which holds the operating rod in an engaged state with the main body. , A handle for operating the operating rod is rotatably mounted on the front surface of the door, and an alarm device such as a buzzer is provided so that the main switch is turned on when the lock device is locked. The circuit of the alarm device is provided with a detection switch that gives an alarm when the handle is turned while the main switch is ON, and the main switch is turned ON between the detection switch and the main switch. An alarm device for a safe, characterized in that a delay circuit is inserted so that the power is turned on after an appropriate time.