JP2949015B2 - Anti-theft device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention includes an attachment state detecting member for detecting an attachment state to an anti-theft object in a state exposed to the outside of a housing, wherein the attachment state detecting member is provided in the housing. An alarm output circuit that detects that the housing has been removed from the anti-theft object based on information of the detection member and outputs an alarm when the removal is detected, and a battery that drives the alarm output circuit. The anti-theft device.

[0002]

2. Description of the Related Art Such an anti-theft device is used in a state where it is attached to an anti-theft object such as a product displayed in a store, and when the anti-theft device is illegally removed from the anti-theft object, That is, if the anti-theft device is forcibly removed from the anti-theft device while the alarm output circuit is in the operating state, an alarm is output. When the anti-theft device is removed from the anti-theft object, the state of the mounting state detecting member changes accordingly.Therefore, based on the information on the state change of the mounting state detecting member, the alarm output circuit includes It detects that it has been removed from the anti-theft object and outputs an alarm.

There are various types of attachment state detecting members according to the form of the anti-theft object to which the anti-theft device is attached. For example, a switch provided on the housing to be retired by contact with the anti-theft object is provided. It is also used as an object or an attachment to the anti-theft object, and is connected in a wire-like manner to the anti-theft object and connected to the housing, or inserted in a state where the anti-theft object is inserted between the object and the housing There are pins and the like. In the case of the mounting state detecting member including the above switch, when the casing of the anti-theft device is forcibly removed from the anti-theft object, the on / off state of the switch changes, and the wire or pin mounting state is detected. In the case of the member for use, the housing is removed from the anti-theft object by cutting the wire-shaped mounting state detecting member or extracting the pin-shaped mounting state detecting member from the housing. Therefore, each state changes.

The alarm output circuit outputs an alarm on the basis of the information on the change in the state of the mounting state detecting member. Generally, the mode of outputting the alarm is to provide a buzzer to the anti-theft device itself. And the like, or a configuration in which an alarm sound is emitted, or a radio signal is output as an alarm output, and the radio signal is received to generate an alarm sound.

As a power supply for driving the alarm output circuit in the housing, a battery for driving the alarm output circuit is generally housed in the housing in order to reduce the size of the anti-theft device as a whole. Therefore, it is necessary to incorporate a means for turning on / off the supply of power from the battery to the alarm output circuit in the housing.
Conventionally, as a means for turning on and off the supply of power, a configuration has been considered in which the battery is moved and turned on and off depending on whether or not the battery is connected to an electrode terminal for contacting both electrodes.

[0006]

However, in the above-described conventional configuration, the battery moves due to vibration or the like during transportation of the anti-theft device and comes into contact with the electrode terminal, and power is supplied to the alarm output circuit to start operation. In this case, the battery power is consumed, and depending on the state of the attachment state detecting member at that time, an alarm may be output from the alarm output circuit, and improvement has been desired. Therefore, the battery and the alarm output
There is a power switch between the road and the
Proposed configuration is proposed and does not use anti-theft devices
When the power switch is turned off, the alarm
Turn off the power supply to the output circuit and use the anti-theft device
When using an anti-theft device,
After attaching it to an object, turn on the power switch and operate
Power was supplied to the alarm output circuit inside. The present invention, the electrocoating
Power switch, the purpose of which is
An object of the present invention is to provide an anti-theft device that can easily operate a power switch .

[0007]

The anti-theft device of the present invention is provided with a mounting state detecting member for detecting a mounting state of the anti-theft object in a state exposed to the outside of the housing. In the body, based on the information of the attachment state detection member, detects that the housing has been removed from the anti-theft object, and outputs an alarm output circuit that outputs an alarm when the removal is detected, and drives the alarm output circuit. Battery and
Power is supplied between the battery and the alarm output circuit.
And a power switch to turn off
The first characteristic configuration is that the power switch is provided in the housing.
Cutting operation member for cutting operation and preparation for the cutting operation member
And a pinion gear meshing with the rack portion provided,
Turn the pinion gear into an operating tool with a rack at the tip
To turn off the power switch.
The point is that it is configured .

[0008] A second feature configuration according to the first feature configuration is that the housing prevents the housing from being detached from the attachment.
Means for locking, and disengagement prevention operation by the locking means
And a lock release means for releasing the operation tool.
With the operation of turning off the power switch,
The lock release means is configured to operate .

The third feature configuration is the first or second feature configuration.
And turning off the power switch by the operating tool.
The alarm output circuit outputs an alarm in accordance with the operation for
In that it is configured such that.

[0010]

According to the first feature of the present invention, the tip of the operating tool is provided.
Insert the rack part of the
The power switch is turned on by rotating the nonion gear.
Switch from state to off state.

That is, the power switch is turned off by the operating tool.
A pinion gear to be operated is provided in the housing ,
Unable to turn off the power switch without special operation tool
However, if you use operating tools,
Turn off the power switch with a simple operation just by inserting the operation tool.
Can be operated.

According to the second characteristic configuration of the present invention, the mounting
Therefore, the housing of the anti-theft device is attached to the anti-theft object
When connecting the fixture to the housing, the
The locking means prevents the housing from being detached from the fixture, and
Make sure that the object does not come off.

[0013] The housing of the anti-theft device is removed from the anti-theft object.
To remove, insert the rack at the end of the operation tool into the housing.
And rotate the pinion gear provided in the housing.
Switch the power switch from the on state to the off state.
To the lock means by the lock release means.
Release operation to release the housing from the mounting fixture.
So that

That is, the rack at the tip of the operating tool is
Power switch off operation and housing
Detachment of attachments, that is, theft prevention target of the housing of the antitheft device
It can be removed from the object.

According to the third feature of the present invention, the operating tool is
When the power switch is turned off by operating the
The power circuit outputs an alarm. This allows for extraordinary operations
Whether or not the battery is ready for use
You can check it.

[0016]

According to the above-mentioned first characteristic configuration, the outside of the housing is
Power switch cannot be easily turned off.
Then, use the operating tool to turn off the power switch.
If you do, simply insert the operation tool into the housing
The power switch can be turned off by operating the anti-theft device.
Simplicity of operation while maintaining high reliability
And make the anti-theft device more convenient.
Wear.

According to the second feature configuration, the first feature is provided.
In addition to the effects of the configuration, the rack at the tip of the
By simply inserting the power switch inside, you can turn off the power switch and
Detachment of attachments, that is, anti-theft protection of the housing of the anti-theft device
Operate the anti-theft device because it can be removed from the elephant
The anti-theft device can be simplified
Can be

According to the third feature configuration, the first or the first
Requires special operation in addition to the effect of the second feature configuration
The battery is ready for use.
Operation can be simplified.
Can make the anti-theft device more convenient
You.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the antitheft device of the present invention will be described below with reference to the drawings. 2 (a) and FIG.
As shown in the side view of (b), the sensor tag 1 as an anti-theft device has a rectangular parallelepiped housing 2 and a wire unit having a function as an attachment for attaching the housing 2 to a product or the like to be anti-theft object. 3 Wire unit 3
As shown in FIG. 3, lock pins 30 provided at both ends for insertion into and removal from the housing 2, wires 31 connecting the lock pins 30, and a part of the wires 31 and the lock pins 30. And a jacket 32 for covering the.

The lock pin 30 and the wire 31 are made of metal and have conductivity, and the lock pins 30 at both ends are also electrically connected. In the vicinity of the tip of the lock pin 30,
An engagement recess 30a is formed to prevent the lock pin 30 from coming off the housing 2. Further, as shown in FIG. 3, a slight step is formed at the end of the jacket 32 covering the lock pin 30, and when the lock pin 30 is inserted into the housing 2, as shown in FIG. As described above, the stepped portion does not enter the housing 2 so that the lock pin 30 is not exposed to the outside. Thus, it is possible to prevent the lock pin 30 from contacting another object charged with static electricity and damaging the electric circuit in the housing 2.

As shown in FIG.
A lamp 20, a piezoelectric buzzer 21, a resonance antenna 22 including a coil, a capacitor, and a resistor;
2 is a receiving state, an antenna input circuit 23 that outputs a reception signal, a wire unit 3 that outputs a wire cutting signal when the wire unit 3 is not properly connected, and a reception from the antenna input circuit 23. A switching circuit 25 that outputs a control signal when a signal or a wire cutting signal from the wire unit input circuit 24 is input; an oscillation circuit 26 that starts pulse oscillation when a control signal from the switching circuit 25 is input; When the control signal from the counter 27 is input, the counter 27 starts counting the number of oscillation pulses of the oscillation circuit 26, and outputs a count completion signal when the count exceeds the set count. Keep the reception signal or the wire disconnection signal input A latch circuit 28 for the counter 2
When the count completion signal of 7 is input, the LED lamp 20
Buzzer LE that lights the LED and sounds the piezoelectric buzzer 21
A D driver 29, a battery V for supplying power to each circuit in the housing 2, and a power switch 6 for turning on / off the power supply from the battery V to each circuit are provided.

The circuit having the above-mentioned structure is used when the power unit 6 is turned on and the housing 2 is attached to a product or the like to be stolen by the wire unit 3 when the wire unit 3 is cut off. For example, when the sensor tag 1 passes through a pair of panel-shaped transmitters O as shown in FIG. 8 which is installed on both sides of a store entrance, the piezoelectric buzzer 21 housed in the housing 2 sounds, It is configured to output an alarm. As the oscillator O, one of the pair of panel-shaped oscillators may be installed on one side of the doorway, or may be installed on the floor of the doorway. Therefore, the wire unit 3 functions as an attachment state detecting member for detecting the attachment state to the anti-theft object, and the LED lamp 2
0, a piezoelectric buzzer 21, a wire unit input circuit 24, a switching circuit 25, an oscillation circuit 26, a counter 27, a latch circuit 28, and a buzzer / LED driver 29 serve as an alarm output circuit G that outputs an alarm based on information of the wire unit 3. Function.

Hereinafter, in the case described above, the piezoelectric buzzer 21
The process up to the start of sound will be briefly described. First, when the wire unit 3 is disconnected from the housing 2 due to the disconnection of the wire unit 3 or the like, the current flowing through the wire unit 3 is cut off, and the wire unit input circuit 24 detects this. . When the wire unit input circuit 24 detects that the energization of the wire unit 3 is cut off,
A wire cutting signal is output to the switching circuit 25.

The switching circuit 25 sends a control signal to the oscillating circuit 26 and the counter 27 while receiving the wire cutting signal. While receiving the control signal, the oscillating circuit 26 performs pulse oscillation and the counter 27 oscillates. The number of oscillation pulses of the circuit 26 is counted. Then, when the control signal stops, the oscillation circuit 26 stops the pulse oscillation, the counter 27 stops counting, and resets the pulse count. Each time the counter 27 completes counting the preset number of pulses, the latch circuit 26 and the buzzer / LE
One pulse signal is sent to the D driver 29 as a count completion signal.

While receiving the count completion signal, the buzzer / LED driver 29 causes the piezoelectric buzzer 21 to sound and the LED lamp 20 to emit light. On the other hand, the latch circuit receives the count completion signal of the counter 27 and keeps the switching circuit 25 in the state of receiving the disconnection signal, whereby the switching circuit 25 continues to send control signals to the oscillation circuit 26 and the counter 27. That is, the buzzer / LED driver 29 causes the piezoelectric buzzer 21 to sound and the LED lamp 20 to emit light after the counter 27 completes counting the set number of pulses after the switching circuit 25 receives the disconnection signal. As a result, if the disconnection signal is not received continuously for a certain period of time, the piezoelectric buzzer 2
1 and the LED lamp 20 do not operate, thereby preventing a malfunction due to noise or the like.

Further, once the counter 27 sends out the count completion signal, the switching circuit 25 continues to send the control signal regardless of the presence or absence of the disconnection signal from the wire unit input circuit 24. Until this, the piezoelectric buzzer 21 continues to emit an intermittent sound in synchronization with the count completion signal of the counter 27, and the LED lamp 20 continues blinking in synchronization with the count completion signal of the counter 27. When the sensor tag 1 passes through the place where the transmitter O is installed, the resonance antenna 22 generates an electromotive force by a radio wave from the transmitter O, the antenna input circuit 23 detects the electromotive force, and sends the received signal to the switching circuit 25. Is output. The operation of each circuit after the switching circuit 25 receives the received signal is the same as the case where the wire unit 3 is disconnected, and the description is omitted.

Next, a structure for attaching the wire unit 3 to the housing 2 will be described. As shown in FIGS. 3 to 7, the wire unit 3 has a lock pin 30 of the wire unit 3.
Is a jack unit 4 provided in contact with the inner wall of the housing 2.
It is attached to the housing 2 while being inserted into the two lock pin insertion holes 40a and 40b. The jack unit 4 has a lock pin 3 inserted into the lock pin insertion hole 40a.
A substantially U-shaped lock spring 41 that is engaged with the lock spring 0 to prevent the spring from coming off.
And the lock pin 3 inserted into the lock pin insertion hole 40b.
A substantially U-shaped lock spring 42 that engages with a lock 0
The lock springs 41 and 42 function as lock means H for preventing the wire unit 3 from being detached. A lock pin insertion hole 40a provided in a state penetrating through the jack unit 4 has an inner end on the inner side of the housing 2, and a set slidable in the lock pin insertion hole 40a in the insertion / removal direction of the lock pin 30. A lever 48 is provided.

The lock springs 41 and 42 have their bent portions 4
In FIGS. 1c and 42c, the end portions 41d and 42d adjacent to the inside of both lock springs 41 and 42 are locked by spring locking protrusions 49 projecting from the main body of the jack unit 4, and the respective circuits shown in FIG. It is fixed to a circuit board to be mounted, and is connected to the wire unit input circuit 24. The other end portions 41b, 42b of the lock springs 41, 42 and the bent portion 4
1c, 42c, convex portions 41a, 42 which engage with the engaging concave portions 30a of the lock pin 30 as described later.
"a" is provided in the lock pin insertion holes 40a and 40b so as to be able to move back and forth.

The lock springs 41 and 42 are made of metal and have conductivity, and electrically connect the lock pin 30 to the circuit board. Further, since the lock springs 41 and 42 are formed in a substantially U-shape, they have elasticity in a direction in which both ends approach or separate from each other, and in a state where no force is applied to the lock springs 41 and 42, FIG. As shown, the protrusions 41a, 42a
Of the lock pin insertion holes 40a and 40b are in a state of protruding almost to the center. Therefore, when the engaging concave portion 30a of the lock pin 30 and the convex portions 41a and 42a engage,
The convex portions 41a and 42a are lock pin insertion holes 40a and 40b.
The lock spring 4
1 and 42 are urged toward the side of engagement with the lock pin 30.

The set lever 48 is, as shown in FIG.
One surface is formed in an open box shape, and a protruding portion 43 is formed so as to protrude from the inner wall of the lock pin insertion hole 40a into a space formed by the set lever 48 and the inner wall of the lock pin insertion hole 40a. ing. Two engagement portions 48a and 48b are formed on the bottom of the box-shaped set lever 48 and are arranged in the sliding direction of the set lever 48 to be engaged with a tip portion of a movement preventing spring 47 described later. ing. A coil spring 44a that urges the set lever 48 toward the entrance side of the lock pin 40a is inserted between the protrusion 43 and the inner wall of the set lever 48. The other lock pin insertion hole 40b is closed on the back side, and the lock pin insertion hole 40b is provided with a coil spring 44b having one end fixed to an end on the back side.

A lock pin 30 to be described later is provided at a position opposite to the lock pin insertion hole 40b of the lock pin insertion hole 40a.
The key insertion hole 45 for inserting the disengagement key K is provided. As shown in FIG. 11, the key insertion hole 45 has:
Movement for preventing movement of the pinion gear 46 which is rotated with the insertion of the disengaging key K shown in FIG. 10 into the key insertion hole 45 and the set lever 48 provided in the lock pin insertion hole 40a. A blocking spring 47 is provided.

The pinion gear 46 is rotatably supported by the main body of the jack unit 4 in a direction in which its teeth extend perpendicular to the direction of insertion of the disengaging key K, and a part of the pinion gear 46 is in the key insertion hole 45. The other part of the projection is a jack unit 4
In the state of protruding outside. Also, the pinion gear 4
3 is supported so as to be able to move a little in the direction perpendicular to the paper surface in FIGS. 3 to 7, and when the key K for disengaging is not inserted into the key insertion opening 45, the key insertion opening 45 is provided.
The rack portion 5a of the slider 5 described below is located on the inner side.
So that it does not mesh with it.

The movement preventing spring 47 is formed by a thin metal rod so as to be elastically deformable. One end is fixed to one side of the opening side of the key insertion hole 45 to be a base end, and swings by elastic deformation. There is freely. The free end of the movement preventing spring 47 is pressed by one of the engaging portions 48a and 48b of the set lever 48 and the elastic action of the movement preventing spring 47 in accordance with the position of the set lever 48 in the sliding direction. Engaged with
The set lever 4 is driven by the urging force of the coil spring 44a.
8 prevents sliding movement of the lock pin 30 in the detaching direction. Note that FIG. 9 shows a state in which it is engaged with the engaging portion 48b. An intermediate portion between the base end and the free end of the movement preventing spring 47 is in a state of crossing the key insertion hole 45.

The rack unit 5a which meshes with the pinion gear 46 of the jack unit 4 in the state shown in FIG.
A slider 5 as an operation tool shown in FIG. The slider 5 has its base 5b slidably engaged with a guide portion (not shown) provided on the inner wall of the housing 2, and the direction shown by an arrow A in FIG. The distal end portion of an elastically deformable extension portion 5c extending from a middle portion between the rack portion 5a and the base portion 5b
As a configuration to be locked to the side, the elastic portion of the extension portion 5c is urged to return to the inside of the housing. Also, the rack part 5a
As described later, the first holding portion 5 which comes into contact with the end portion 41b of the lock spring 41 with the sliding movement of the slider 5 is provided at a position opposite to the connection portion with the base portion 5b.
d and the second abutment on the end 42 b of the lock spring 42.
A holding portion 5e is formed, and the distance between the end portion 42b of the lock spring 42 and the second holding portion 5e is
Is longer than the distance between the end portion 41b and the first pressing portion 5d. 3 to 7, the extension 5c of the slider 5 is omitted in FIGS.

Lock pin insertion hole 4 of jack unit 4
A power switch 6 is provided at an inner side of the housing 2 of Oa. The power switch 6 is a normally-off type switch, and the operated portion 6a of the power switch 6 is pushed by the set lever 48 of the jack unit 4 to shift from the off state to the on state.

Next, the engagement between the wire unit 3 and the housing 2 and the release of the engagement will be described. First, when the wire unit 3 and the housing 2 are engaged with each other, the lock pins 30 of the wire unit 3 shown in FIG. 3 are disengaged from the lock pins 30 as shown in FIG. Is inserted into the lock pin insertion hole 40b of the jack unit 4. When the lock pin 30 is inserted against the urging force of the coil spring 44b provided in the lock pin insertion hole 40b, the lock spring 4 is inserted into the engagement recess 30a of the lock pin 30.
The projection 42a protruding into the second lock pin insertion hole 40b engages, and reliably prevents the lock pin 30 from moving in the release direction by the urging force of the coil spring 44b, thereby maintaining the engagement state.

With one of the lock pins 30 inserted into the jack unit 4, the other lock pin 30 is entangled with a product or the like, and then inserted into the lock pin insertion hole 40 a of the jack unit 4. When the lock pin 30 is inserted into the lock pin insertion hole 40a, the tip of the lock pin 30 contacts the set lever 48. When the lock pin 30 is further inserted while pressing the set lever 48, the lock spring 4 is inserted into the engagement recess 30a of the lock pin 30, as shown in FIG.
The protrusion 41a protruding into the lock pin insertion hole 40a engages to prevent the lock pin 30 from moving in the disengagement direction. Set lever 4 with this lock pin 30
As shown in FIG. 9, the push operation of 8 causes the distal end of the movement preventing spring 47 on the free end side to engage with the engaging portion 48 a of the set lever 48, as shown in FIG. 48b, and the inner end 48c of the set lever 48 on the inner side of the housing 2 pushes the operated portion 6a of the power switch 6 to operate each circuit in the housing 2 shown in FIG. Start energizing the.

The wire unit 3 and the wire unit input circuit 24 in the housing 2 are connected to the lock pin 30 as described above.
Of the engagement recesses 30a and the projections 41 of the lock springs 41 and 42
a and 42a are electrically connected. next,
In order to release the engagement between the wire unit 3 and the jack unit 4 from the state shown in FIG. 5, the key K for releasing the engagement shown in FIG. 10 is used. The disengaging key K is connected to the first rack portion K that meshes with the pinion gear 46 of the jack unit 4.
1 and a second rack portion K2 are provided at both ends. The two rack portions K1 and K2 have different insertion depths into the key insertion holes 45 of the jack unit 4, and the second rack portions K1 and K2 are seconder than the insertion depth of the first rack portion K1. The length is set so that the insertion depth of the rack portion K2 is slightly deeper. Therefore, the rotation amount of the pinion gear 46 differs between the case where the first rack portion K1 is inserted into the key insertion hole 45 and the case where the second rack portion K2 is inserted into the key insertion hole 45.

When the shallower first rack portion K1 is inserted into the key insertion hole 45 as shown in FIG. 11, the first rack portion K1 raises the pinion gear 46 and engages with the rack portion 5a of the slider 5. At the same time, the first rack portion K1 meshes with the pinion gear 46, and the first rack portion K
The pinion gear 46 rotates with the insertion of 1. Due to the rotation of the pinion gear 46, the slider 5 including the rack portion 5a meshing with the pinion gear 46 moves in the direction of arrow B in FIGS. At this time, the amount of movement of the slider 5 is such that the first pressing portion 5d of the slider 5 contacts the end 41b of the lock spring 41, but the second pressing portion 5e still contacts the end 42b of the lock spring 42. The length of the first rack portion of the disengagement key K is set so as not to be in a state of not being engaged. In FIG. 11, the position of the pinion gear 46 indicates the position when the pinion gear 46 is lifted by the first rack portion K1.

Further, the first rack portion K1 of the disengagement key K
When is inserted into the key insertion hole 45, the movement prevention spring 47 provided in a state of crossing the key insertion hole 45 is pressed, and the movement prevention spring 47 is pressed against the wall of the key insertion hole 45. As a result, the free end of the movement preventing spring 47 swings, and the engagement between the free end and the engaging portion 48a of the set lever 48 is released.

With the sliding movement of the slider 5, the first
When the pressing portion 5d presses the end 41b of the lock spring 41,
As shown in FIG. 6, the convex portion 41a of the lock spring 41 swings so as to retreat from the lock pin insertion hole 40a. Thus, the engagement between the engaging concave portion 30a of the lock pin 30 and the convex portion 41a of the lock spring 41 is released. As a result, the lock pin 30 into which the lock pin insertion hole 40a is inserted is pushed out by the urging force of the coil spring 44a inserted into the set lever 48, and the power switch 6 shifts from the on state to the off state, and Power supply to each circuit in 2 is stopped. Therefore, the slider 5 functions as a turning operation member for turning off the power switch 6.

The timing at which the power switch 6 shifts from the ON state to the OFF state is slightly delayed from the timing at which the engagement recess 30a of the lock pin 30 and the projection 41a of the lock spring 41 are released and separated. The lock pin 30 is operated by operating the disengagement key K.
When the battery is removed from the lock pin insertion hole 40a, the piezoelectric buzzer 21 sounds for a moment, so that the battery check of the battery V can be performed simultaneously with the removal operation. When the lock pin 30 inserted in the lock pin insertion hole 40b is further removed for the replacement of the wire unit 3 from the state where the lock pin 30 is removed from the lock pin insertion hole 40a, the engagement release key is used. The second rack portion K2 of K is inserted into the key insertion hole 45.

Since the insertion depth of the second rack portion K2 is deeper than that of the first rack portion K1, the amount of sliding movement of the slider 5 in the direction of arrow B in FIG. The second pressing portion 5e of the slider 5 that is larger than when the first rack portion K1 is inserted and does not contact when the first rack portion K1 is inserted contacts the end portion 42b of the lock spring 42. . When the second pressing portion 5e presses the end portion 42b of the lock spring 42, as shown in FIG. 7, the convex portion 42a of the lock spring 42 swings so as to retract from the lock pin insertion hole 40b. In this way, the engagement between the engaging concave portion 30a of the lock pin 30 and the convex portion 42a of the lock spring 42 is released. As a result, the lock pin 30 into which the lock pin insertion hole 40b is inserted is pushed out by the urging force of the coil spring 44b.

Therefore, the slider 5 functions as a lock releasing means I for releasing the lock springs 41 and 42 for preventing the detachment of the housing 2 from the wire unit 3.

[Another Embodiment] Hereinafter, another embodiment will be described. In the above-described embodiment, the sensor tag 1 is a type attached to a product to be stolen by the wire unit 3 as an example.
As shown in the plan view of FIG. 3A and the side view of FIG. In this type, for example, when the target product is clothing, the pin 103 is pointed at the clothing, and the tip of the pin 103 is attached to the housing 2.
And attach it. The sensor tag 1 shown in FIG. 13 contains a circuit having a configuration as shown in FIG.

The circuit of FIG. 14 is similar to the circuit of FIG. 1 of the above-described embodiment, and has a function as a member for detecting an attached state instead of the wire unit 3 and a function as an attachment to an object to be stolen. The only difference is that the pin 103 and the detection switch S are connected, and if the pin 103 is forcibly removed when the power switch 6 is in the ON state, the same as when the wire unit 3 is cut off in the above embodiment. It works similarly. Other operations are the same as those in the above-described embodiment, and a description thereof will be omitted.

Hereinafter, the mounting structure of the pin 103 to the housing 2 will be described. The pin 103 is, as shown in FIG.
Is attached to the housing 2 in a state of being inserted into the pin insertion hole 140 of the jack unit 104 provided in contact with the inner wall of the housing. FIGS. 15 and 16 show the jack unit 104.
As shown in the figure, the pin 10 inserted into the pin insertion hole 140
A hook-shaped lock spring 141 is provided as locking means H that engages with the lock member H to prevent the spring from coming off.
Is provided.

The material of the lock spring 141 is metal, and has elasticity in a direction in which both end portions 141a and 141b approach or separate from each other. The lock spring 141 is locked at its bent portion 141 c by a spring locking projection 149 projecting from the main body of the jack unit 104, and the end 141 a of the lock spring 141 is fixed to the main body of the jack unit 104. A pin 1 is provided at an intermediate portion between the other end 141b and the bent portion 141c of the lock spring 141 as described later.
A convex portion 141d that engages with the engaging concave portion 103a of No. 03 is provided in the pin insertion hole 140 so as to be able to move back and forth.

As shown in FIG. 18, the spring holding member 148 has a shape in which cylinders of different diameters are stacked in two stages.
3. A flange 148a is formed at the end on the far side in the insertion direction. Inside the spring holding member 148, a coil spring 148b having one end fixed to the inner surface of the flange 148a,
Metal plate 1 holding the other end of coil spring 148b
48c and the coil spring 1 in the metal plate 148c
A coil spring 148d having one end fixed to a surface opposite to a surface holding the end of the coil spring 148d;
A resin plate 148e for holding the other end of 48d is provided. The central portion of the metal plate 148c is cut out in a circular shape so as to allow the tapered portion 103b at the tip of the pin 103 to pass therethrough. The resin plate 148e supports the tapered portion 103b at the tip of the pin 103. The central part is cut out in a circular shape. Further, the metal plate 148 c is
8 and protrudes through the side wall of the spring holding member 14.
The side wall portion 8 is partially cut away to allow the protruding portion to move in the pin 103 insertion direction.

On the mounting surface 104a of the spring holding member 148 in the jack unit 104 main body, two divided electrode terminals 104b and 104c are formed. The electrode terminals 104 and 104c are connected to a wire unit input circuit 24 provided in the housing 2 respectively.
The detection switch S in FIG. 14 is constituted by 48c and the electrode terminals 104b and 104c. Pin insertion hole 140
Is provided with a set button pin insertion hole 130 that extends through the jack unit 104 in a direction perpendicular to the pin insertion direction of the pin insertion hole 140. A set button pin 131 that is slidable in the set button pin insertion hole 130 is disposed in the set button pin insertion hole 130, and the set button pin 131 is set in the opening of the set button pin insertion hole 130 at the inner end of the housing 2. A metal-made and spring-shaped contact switch 132 which is pushed by the button pin 131 and swings is provided with one end fixed to the jack unit 104.

The set button pin 131 is shown in FIG.
FIG. 20 showing an EE cross section in FIG.
As shown in (b), an operated part 131a pushed from the outside of the housing 2, a positioning part 131b for positioning the set button pin 131 at a specific position in the set button pin insertion hole 130, and a set button pin A spring housing 131c for housing a coil spring 144 for urging the spring 131 in a direction opposite to the insertion direction of the set button pin 131. As shown in FIG. 19, the spring storage portion 131c is formed in a box shape with one surface opened, and a set button pin is inserted into a space formed by the spring storage portion 131c and the inner wall of the set button pin insertion hole 130. A protruding portion 143 is formed so as to protrude from the inner wall of the insertion hole 130.
Further, two engagement portions 131e, 1 arranged in the sliding direction of the set lever 48 for engaging with a tip portion of a movement preventing spring 147 described later are provided on the bottom of the box-shaped spring storage portion 131c.
31f is formed.

The coil spring 144 is provided in the spring housing 1
31c, which is disposed between the inner wall of the housing 2 on the outer side of the housing 2 and the protrusion 143, and urges the set button pin 131 to return in the direction opposite to the insertion direction of the set button pin 131 as described above. . Positioning portion 131b of set button pin 131
The positioning button 131d is formed so as to have elasticity so as to be able to move in and out of the projecting direction.
An engagement recess 130 a that engages with the positioning projection 131 d is provided on the inner wall of the set button pin insertion hole 130 in a state where the push button 31 is pressed inward of the housing 2. When the set button pin 131 is pushed inward of the housing 2, the end of the set button pin 131 on the inner side of the housing 2 contacts the contact switch 132 and swings the contact switch 132. Due to this swing, the free end side of the contact switch 132 comes into contact with the circuit board, and the two electrode terminals 106a and 106b formed on the circuit board.
Short circuit. As a result, power is supplied from the battery V to each circuit in the housing 2.
The two and two electrode terminals 106a and 106b correspond to the power switch 6 in FIG.

At the opposite side of the set button pin insertion hole 130 from the pin insertion hole 140, a key insertion hole 145 for inserting a key K for disengaging the pin 103 described later is provided. The key insertion hole 145 is used to move a pinion gear 146 that is rotated when the disengagement key K is inserted into the key insertion hole 145, and to move a set button pin 131 provided in the set button pin insertion hole 130. A movement blocking spring 147 for blocking is provided. These configurations are:
The configuration is the same as that of the above embodiment shown in FIG. 11, and detailed illustration is omitted.

The pinion gear 146 is rotatably supported by the jack unit 104 main body in a direction in which its teeth extend perpendicular to the direction of insertion of the disengaging key K, and
A part is projected into the key insertion hole 145 and another part is projected outside the jack unit 104. The movement preventing spring 147 is formed so as to be elastically deformable with a thin metal rod, and one end is fixed to one side of the key insertion hole 145 to be a base end side, and is swingable by elastic deformation. The free end of the movement preventing spring 147 is
Set button pin 1 according to the position in the sliding direction of
31 is engaged with one of the engaging portions 131e and 131f in a state pressed by the elastic action of the movement preventing spring 147, and the set button pin 148 is slid outwardly of the housing 2 by the urging force of the coil spring 144. Has been prevented. Note that FIG. 19 shows a state where the engaging portion 131f is engaged. An intermediate portion between the base end and the free end of the movement preventing spring 147 is in a state of crossing the key insertion hole 145.

The rack unit 10 which engages with the portion of the pinion gear 146 projecting outward from the jack unit 104 is provided on the inner side of the housing 2 of the jack unit 104.
21 (a), 21 (b) and 21 provided with 5a
A slider 105 shown in (c) is provided.

The slider 105 has a base portion 105b slidably engaged with a guide portion (not shown) provided on the inner wall of the housing 2, and an arrow P in FIGS.
, That is, in the direction of insertion and removal of the disengagement key K, and the rack 105a and the base 10
The distal end portion of the elastically deformable extension portion 105c extending from the middle portion between the extension portion 5b and the front end portion 5b is locked to the housing 2 side. I have. In FIGS. 15 to 17, the extension 105c is omitted to make the drawings easy to see.

Next, the engagement and disengagement of the pin 103 with the housing 2 and the switching of the power supply from the battery V to each circuit in the housing 2 will be described. First, when the pin 103 and the housing 2 are engaged, the pin 1 shown in FIG.
03 is disengaged from the state in which the pin 103 is pointed at the clothing F or the like of the clothing, as shown in FIG.
03 is inserted into the pin insertion hole 140 of the jack unit 104. When the pin 103 is inserted against the urging force of the coil springs 148b and 148d provided in the pin insertion hole 140, the protrusion 141d protruding into the pin insertion hole 140 of the lock spring 141 is inserted into the engagement recess 103a of the pin 103.
To prevent the pin 103 from moving in the release direction by the urging force of the coil springs 148b and 148d, and maintain the engaged state.

During the insertion process until the engaging concave portion 103a of the pin 103 engages with the convex portion 141d of the lock spring 141, the tapered portion 103 at the tip of the pin 103 contacts the resin plate 148e on the jack unit 104 side. When the pin 103 is further inserted against the urging force of the coil springs 148b and 148d, the metal plate 148c moves toward the inside of the housing 2 and is divided into two parts formed on the mounting surface 104a of the spring holding member 148. And shorts them to the electrode terminals 104b and 104c. In this state, the detection switch S shown in FIG. 14 has shifted from the off state to the on state. At the point when the metal plate 148c short-circuits the two divided electrodes, the coil spring 148d still has a margin for shrinkage, and the pin 103 is further inserted so that the pin 103 and the lock spring 141 are engaged. Thus, the attachment of the sensor tag 1 to the product is completed, and the operation of the sensor tag 1 is started next.

The operation of the sensor tag 1 is started using a power supply setting jig D as shown in FIGS. When the operated portion 131a of the set button pin 131 of the jack unit 104 is pushed inward by the projecting pin D1 of the power supply setting jig D, the set button pin 13
The inner end 131g of the first housing 2 contacts the contact switch 132 and swings the contact switch 132. Due to this swing, the free end of the contact switch 132 contacts the circuit board, and short-circuits the two electrode terminals 106a and 106b on the circuit board. As a result, the power supply from the battery V to each circuit in the housing 2 is started.
When the set button pin 131 is not pushed in, the operated portion 131a, which is the outer end of the set button pin 131 on the outer side of the housing 2, is inserted into the set button pin insertion hole 130.
Of the set button pin 131 so as to be located at a position slightly immersed from the opening on the outer side of the housing 2
Is formed on the inner wall of the set button pin insertion hole 130.

When the set button pin 131 is pressed, the tip of the movement preventing spring 147 on the free end side moves.
From the state in which the set button pin 131 is engaged with the engagement portion 131e, as shown in FIG.
The state is switched to a state of engagement with the engagement portion 131f of the 31st.
At the position where the set button pin 131 swings the free end of the contact switch 132 toward the circuit board, the coil spring 144 is compressed and the set button pin 1
31 pushes back toward the outside of the housing 2, but as described above, the set button pin 131 is engaged with the free end of the movement preventing spring 147 and the engaging portion 131 f of the set button pin 131. The sliding movement of the set button pin 131 is also prevented by the engagement between the positioning protrusion 131d of the set button pin 131 and the engaging recess 130a of the set button pin insertion hole 130, while preventing the sliding movement of the set button pin 131. .

Next, from the state shown in FIG.
When the engagement between the jack unit 104 and the jack unit 104 is released, the disengagement key K shown in FIG. 10 is used as in the above embodiment. In the state shown in FIG. 16, when the second rack portion K2 is inserted into the key insertion hole 145, the second rack portion K2 meshes with the pinion gear 146, and the pinion gear 146 rotates with the insertion of the second rack portion K2. . By the rotation of the pinion gear 146, the slider 105 having the rack portion 105a meshing with the pinion gear 146 is moved as shown in FIG.
At 7, the position moves from the position indicated by the dashed line to the position indicated by the solid line. When the second rack portion K2 of the key K for disengagement is inserted into the key insertion hole 145, the movement prevention spring 147 provided in a state of crossing the key insertion hole 145 is pressed, and the movement prevention spring 147 is pressed. Is pressed against the wall of the key insertion hole 145. Accordingly, the free end of the movement preventing spring 147 swings, and the engagement between the free end and the engaging portion 131f of the set button pin 131 is released.

The slider 105 has a first holding portion 105d which comes into contact with the end 141b of the lock spring 141 with the sliding movement of the slider 105, and an inner end of the set button pin 131 on the inner side of the housing 2. And a second pressing portion 105e which is provided as shown in FIG.
The first holding portion 105 d is an end portion 141 of the lock spring 141.
When b is pressed, the protrusion 141d of the lock spring 141 swings so as to retreat from the pin insertion hole 140. In this manner, the engagement between the engaging concave portion 103a of the pin 103 and the convex portion 141d of the lock spring 141 is released, and the pin 103 is moved outward from the housing 2 by the urging force of the coil springs 148b and 148d of the spring holding member 148. Extruded. Therefore, the slider 105 functions as a lock releasing means I for releasing the locking prevention operation of the lock spring 141 for preventing the detachment between the housing 2 and the pin 103.

On the other hand, the second holding portion 1 of the slider 105
When 05e pushes the inner end of the set button pin 131 on the inner side of the housing 2, the set button pin 131 moves to the outer side of the housing 2, and the positioning projection 131d of the set button pin 131 is moved.
And recess 130a for engagement with set button pin insertion hole 130
Is disengaged. As a result, the spring storage portion 131c
The set button pin 131 returns to a state before the operation section 131a is pushed in by the return biasing force of the coil spring 144 in the inside, the contact switch 132 separates from the two terminals on the circuit board, and the battery V Power supply to each circuit in 2 is stopped. Therefore, the slider 105
It functions as a cutting operation member for turning off the power switch 6.

The timing at which the energization is stopped is configured to be slightly delayed from the timing at which the engagement concave portion 103a of the pin 103 and the convex portion 141d of the lock spring 141 are released and separated from each other. When removing the pin 103 from the pin insertion hole 140 by operating the key K,
Since the piezoelectric buzzer 21 sounds for a moment, the battery check of the battery V can be performed at the same time as the removal operation.

In the above embodiment and another embodiment, the lock pin 30 or the pin 103 as the attachment state detecting member is used.
Is also used as a fixture for attaching the housing 2 to the anti-theft object, but provided with the operated portion of the switch as a mounting state detecting member protruding from the housing 2, and May be configured to be used in a state of contact with the anti-theft object, and the mounting state detecting member may not have a function as a mounting tool for mounting the housing to the anti-theft object. In this case, the housing may be attached to the anti-theft object with an adhesive tape or the like.

In the above embodiment and another embodiment, the alarm output circuit outputs an alarm by sounding the piezoelectric buzzer 21, but is configured to output a radio signal as an alarm, and the radio signal is received. Alternatively, a device for issuing a warning may be separately provided.

In the above embodiment, the disengagement of the pin 103 and the turning-off operation of the power switch 6 by the set button pin 131 are performed at different timings, and the piezoelectric buzzer 21
Is temporarily sounded to check the battery, but a sensor for detecting the turning-off operation of the power switch 6 may be provided, and the piezoelectric buzzer 21 may sound temporarily based on the detection information of the sensor. good.

In the above embodiment, the engaging portion 4 of the set lever 48 that pushes and operates the operated portion 6 a of the power switch 6
8a and 48b are provided on one side of the set lever 48 in plan view, but the engaging portions 48a and 48b are provided symmetrically with respect to the center of the set lever 48 in plan view,
When inserting the set lever 48 into the lock pin insertion hole 40a, it may not be necessary to confirm the insertion direction.

In the above-described embodiment, the lock pin 30 is prevented from coming off by the engagement between the engagement recess 30a of the lock pin 30 and the lock springs 41 and 42 as the lock means H. Alternatively, the brake shoe 30 may be constituted by a brake shoe which can be sandwiched.

In the above another embodiment, the spring holding member 14
8 by the coil spring 148d.
Although c has flexibility after coming into contact with the electrode terminals 104b and 104C, the function of the coil spring 148d may be integrated by imparting elasticity to the metal plate 148c itself.

In the above embodiment, the set button pin 131 is returned to a state before being pushed by the return biasing force of the coil spring 144. However, the slider 10 is not provided with the coil spring 144.
The return may be made only by the pressing operation of No. 5.

Incidentally, reference numerals are written in the claims for convenience of comparison with the drawings, but the present invention is not limited to the structure of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram according to an embodiment of an anti-theft device of the present invention.

FIG. 2 is an external view according to an embodiment of the present invention.

FIG. 3 is a sectional view of a main part according to the embodiment of the present invention.

FIG. 4 is a sectional view of a main part according to the embodiment of the present invention.

FIG. 5 is a sectional view of a main part according to the embodiment of the present invention.

FIG. 6 is a sectional view of a main part according to the embodiment of the present invention.

FIG. 7 is a sectional view of a main part according to an embodiment of the present invention.

FIG. 8 is an external perspective view of a transmitter according to an embodiment of the present invention.

FIG. 9 is a perspective view of a main part according to the embodiment of the present invention.

FIG. 10 is an enlarged view of a disengagement key according to the embodiment of the present invention.

FIG. 11 is a sectional view of a main part according to an embodiment of the present invention.

FIG. 12 is an enlarged view of a slider according to the embodiment of the present invention.

FIG. 13 is an external view according to another embodiment of the present invention.

FIG. 14 is a schematic configuration diagram according to another embodiment of the present invention.

FIG. 15 is a sectional view of a main part according to another embodiment of the present invention.

FIG. 16 is a sectional view of a main part according to another embodiment of the present invention.

FIG. 17 is a sectional view of a main part according to another embodiment of the present invention.

FIG. 18 is a sectional view of a main part according to another embodiment of the present invention.

FIG. 19 is a perspective view of a main part according to another embodiment of the present invention.

FIG. 20 is an enlarged view of a set button pin according to another embodiment of the present invention.

FIG. 21 is an enlarged view of a slider according to another embodiment of the present invention.

FIG. 22 is an enlarged view of a power supply setting jig according to another embodiment of the present invention.

[Explanation of symbols]

 2 Case 3, 103 Mounting state detecting member 5, 105 Cutting operation member 5a, 105a Rack section 6 Power switch 6a Operated section 46, 146 Pinion gear G Alarm output circuit H Lock means I Lock release means K1, K2 Rack part K Operating tool V Battery

Claims (3)

(57) [Claims] An attachment state detection member (3, 103) for detecting an attachment state to an anti-theft object in a state exposed to the outside of the housing (2), the housing (2) Inside, the mounting state detecting member (3, 1
An alarm output circuit (G) for detecting that the housing (2) has been removed from the anti-theft object based on the information of 03) and outputting an alarm when the removal is detected, and the alarm output circuit (G) And a power switch (6) for turning on / off the supply of power between the battery (V) and the alarm output circuit (G). Turn off the power switch (6) in the housing (2).
Cutting operation member (5, 105) to be made and its cutting operation unit
Rack part (5a, 105) provided in the material (5, 105)
a) and a pinion gear (46, 146) meshing therewith are provided.
And the pinion gears (46, 146)
(K1, K2) with the operating tool (K)
The power switch (6) is turned off.
Anti-theft devices. 2. A housing (2) and a housing (2)
A lock means (H) for preventing detachment from the attachment, and a lock means for releasing the detachment prevention operation by the lock means (H).
Lock release means (I) is provided, and the power switch (6) is turned on by operating the operation tool (K).
With the turning operation, the unlocking means (I) is activated.
2. The anti-theft device according to claim 1, wherein the anti-theft device is configured to be moved.
apparatus. 3. The power switch by the operating tool (K).
The alarm output circuit according to the operation for turning off the switch (6).
2. The method of claim 1, wherein (G) is configured to output an alarm.
Or the anti-theft device according to 2.