CN106297135A - Plunder countermeasure device - Google Patents

Abstract

The present invention provides the new robbery countermeasure device that the shop aspects such as convenience store can use.The structure making the magnet unit (1) of robbery countermeasure device forms such structure, that is: there is the rack (the first holding member (10) and the second holding member (20)) of holding net (N), it is embedded in the permanent magnet (25) of rack, the ceiling fixture (40) being arranged on ceiling, the iron core (45) being fixed on ceiling fixture, the coil (35) wound around axle center unshakable in one's determination, and for the operation of coil electricity is switched, when to coil blackout, iron core is adsorbed by permanent magnet, thus rack is maintained on ceiling fixture, by to coil electricity, unshakable in one's determination magnetized to the direction repelled each other with permanent magnet, by this repulsion, rack is made to depart from ceiling fixture.

Description

Plunder countermeasure device

Technical field

The present invention relates to the robbery countermeasure device arranged in convenience store etc..

Background technology

According to the statistics of police agency, in the house robbery of commercial facility, about most probably occur in convenience store.In order to Prevent from plundering, although teaching shop to be equipped with several employee usually, but cannot arrange to the period in morning less midnight client The shop of several employees is not within minority.When actual robbery, the case of only one of which employee reaches the sixty percent of total amount, occurs The time the most about seventy percent plundered concentrated between midnight 2 to morning 5.The safety of employee is paid the utmost attention in shop, also Teaching employee is in the face of paying the most on request when plundering mostly.And, practical situation is, once plunders, as Shop aspect can only wait that police arrests criminal according to the image etc. of CCTV camera.I.e., in the present circumstance, there is no shop What aspect can use effectively plunders countermeasure.

Summary of the invention

Therefore, the present invention is in view of above-mentioned practical situation, with new the robbing providing the shop aspects such as convenience store to use Rob countermeasure device as problem.

In order to solve the problems referred to above, the robbery countermeasure device of the present invention " possessing magnet unit, described magnet unit has:

Keep the rack of net；

It is embedded in the permanent magnet of this rack；

The ceiling fixture being arranged on ceiling；

It is fixed on the iron core on this ceiling fixture；And

The coil wound around the axle center of this iron core,

Not to described coil electricity time, described iron core is adsorbed by described permanent magnet, so that described rack is maintained at On described ceiling fixture,

By to described coil electricity, make described iron core be magnetized to the direction repelled each other with described permanent magnet, scolded by this Power, makes described rack depart from described ceiling fixture.”

When arranging the robbery countermeasure device of this structure, the ceiling fixture of magnet unit is arranged on ceiling.By In fixed iron core on ceiling fixture, rack is embedded with permanent magnet, thus rack near ceiling fixture time, The iron core of ceiling fixture is attracted by the permanent magnet of rack, so that rack is pulled near ceiling fixture, and rack quilt It is held in ceiling fixture.If making net be held in rack in advance, it is possible to by rack and ceiling fixture, net is pacified It is contained on ceiling.Such as, use multiple magnet unit, utilize each rack to keep each position of net, according to the position with rack The position relationship that relation of putting is corresponding, is arranged on each ceiling fixture on ceiling, it becomes possible to have strutted the shape of net Net tension is arranged on ceiling by state.

In this state, when to the coil electricity wound around axle center unshakable in one's determination, coil becomes electric magnet, makes ferrum The heart is to the direction magnetization repelled each other with permanent magnet.So, the rack having buried permanent magnet underground is departed from by the repulsion with permanent magnet unshakable in one's determination Ceiling fixture, rack falls with the state that remain net.Therefore, the manipulable place of employee in shop pre-sets Operation to coil electricity switchs, when robber is positioned at the moment of the lower section being tightened up the net being arranged on ceiling, by connecting Operation switch is to coil electricity, so that it may so that the top of convict fallen by net.The health of convict is snarled by net and loses freedom, from And it is possible to prevent convict to run away.Then, when convict struggles in net, the employee in shop can hide to the place of safety and report Alert.So, employee prevents convict from escaping with can not staying dangerous situation and makes robbery crime failure.It addition, the robbery of this structure Even if countermeasure device can also make robbery crime failure in the case of only one of which employee.Therefore, according to such structure, can With the robbery countermeasure device providing the shop aspects such as the most non-existent, convenience store to use.

Here, as the structure plundering countermeasure device, it may also be envisaged that such structure, i.e. by coil electricity, borrow The magnetic force helping electric magnet makes ceiling fixture keep net, when occurring to plunder, by electric magnet power-off, makes electric magnet demagnetization So that off the net fall.But, in this case, owing to coil electricity being plundered countermeasure device therefore to maintain at ordinary times The electricity charge to be spent.On the other hand, the robbery countermeasure device of this structure the most not to coil electricity ground the aid of permanent magnet captivation Make ceiling fixture keep net, just only occur to plunder in emergency circumstances to coil electricity, therefore, having need not be in order to tie up Hold the advantage plundering countermeasure device and spend the electricity charge.

In addition, ceiling fixture is made to keep net also in advance by the magnetic force by electric magnet to coil electricity By electric magnet power-off is made off the net fall in the case of, net is because of the demagnetization of electric magnet " naturally fall ".On the other hand, at this knot In the robbery countermeasure device of structure, by coil electricity, make unshakable in one's determination to the direction magnetization repelled each other with permanent magnet, by this repulsion, Rack is made to depart from ceiling fixture.That is, net is not that nature falls, but by the iron core after being magnetized by electric magnet and permanent magnet Repulsion and " acceleration " ground " casting ".Therefore, compared with the net naturally fallen, the falling speed of net faster, therefore can reduce Guard is made to live in criminal with missing the risk on opportunity.

The robbery countermeasure device of the present invention is than the above described structure, it is also possible to

" being also equipped with control circuit, described control circuit has one in each described magnet unit,

This control circuit has charge storage element and makes the electric discharge of this charge storage element the switch unit to described coil electricity Part ".

Utilize multiple magnet unit net tension to be arranged on ceiling in advance, when occur plunder time make off the net fall situation Under, need " simultaneously " coil electricity to multiple magnet units.Therefore, power supply directly all of magnet unit is being powered In the case of, need the electric current supplied to be formed as big electric current, exist need the equipment volume such as thick cable and power source special to increase and The risk that cost improves.

On the other hand, in this configuration, each magnet unit is made to have a control circuit, in each control circuit On charge storage element is set.That is, each coil has a charge storage element.Therefore, make off the net fall time, by each electric power storage unit Part to corresponding coil discharge, therefore, there is no need to make off the net fall time by power supply to multiple coil power supplies.Therefore it is not required to Want thick cable and power source special, utilize general equipment just can start robbery countermeasure device.

Further, since have employed there occurs robbery in emergency circumstances coil electricity is made off the net fall structure, because of This is in the case of by power supply directly to coil power supply, have a power failure time can not make off the net fall.On the other hand, due to this structure it is By charge storage element to coil power supply, therefore, though have a power failure time nor affect on coil electricity, can make off the net fall.Further, store The capacity of electric device is only to coil electricity the most once.

On the other hand, if as it has been described above, used by coil electricity, magnetic force by electric magnet comes in advance at ordinary times Make ceiling fixture keep net and in case of emergency by electric magnet power-off is made off the net fall structure, then have a power failure time Even if not occurring to plunder net also to fall, very inconvenient.In this case, although it is also contemplated that be pre-equipped with emergency power supply Method, but due to be not aware that power failure will last long, accordingly, it would be desirable to be pre-equipped with a certain amount of electric energy as meet an urgent need Power supply.Such that make to have preset the electric energy of bigger emergency power supply, if but have a power failure and be continued above setting, final net is also It is to fall.On the other hand, in the robbery countermeasure device of this structure, owing in case of emergency having only to coil can be led to Electricity electric energy once, therefore, the capacity needed for charge storage element is known, and it can be made the most enough.

Further, be equipped with emergency power supply be " for anti-contingency ", " additionally " be equipped with only when having a power failure use and do not make Equipment, it is also possible to the most do not use and produce waste.On the other hand, in this configuration, no matter when having a power failure or At ordinary times, carry out identical action by identical structure, therefore there is the advantage not resulting in waste completely.

In addition to above-mentioned structure, the robbery countermeasure device of the present invention is all right

" being also equipped with operating portion, described operating portion has:

Main part, described main part have be arranged on floor base portion, above this base portion formed house sky Between resettlement section and the cylinder portion that connects with described receiving space and vertically extend；

Slide mass, described slide mass is inserted cartridge and moves up and down, and forms mandrel rod shape；

Pedal, described pedal is supported on described slide mass and is positioned at the top of cartridge；

Operation switch, described operation switch is accommodated in described receiving space, by the described slide mass with decline state Contact makes described coil blackout, the shape not contacted with the described slide mass risen because being pushed up by described pedal by formation State makes described coil electricity ".

The operating portion of this structure is to utilize the operation of foot to carry out the switch of the operation to coil electricity.Therefore, it can be arranged on hidden Ensconce on the floor on the foot limit in sales counter, it is possible to reduce operate to the risk found by robber.If it addition, being formed logical Cross the lower pedal that tramps with one's feet and carry out the structure of making operation switch, there is the wind of meeting unconsciously making operation switch in daily action Danger.On the other hand, in the operating portion of this structure, due to be utilize will push away on pedal, i.e. " upwards play " this in everyday actions In the action that do not has carry out the structure of making operation switch, therefore can reduce and start mistakenly rob because of unconscious making operation Rob the risk of countermeasure device.

As it has been described above, as the effect of the present invention, it is provided that new the robbing that the shop aspects such as convenience store can use Rob countermeasure device.

Accompanying drawing explanation

Fig. 1 is the exploded perspective view of the magnet unit in the robbery countermeasure device of an embodiment of the invention.

Fig. 2 is the exploded perspective view of the magnet unit of Fig. 1 in terms of opposition side.

Fig. 3 is the longitudinal section of the magnet unit of Fig. 1.

Fig. 4 is the decomposition longitudinal section of the magnet unit of Fig. 1.

Fig. 5 is the figure of the magnet unit holding net of explanation Fig. 1.

Fig. 6 (a)～(d) are structure and the actions of the operating portion in the robbery countermeasure device of an embodiment of the invention Explanatory diagram, Fig. 6 (b) is the X-X line sectional view in Fig. 6 (a), and Fig. 6 (d) is the Y-Y line sectional view in Fig. 6 (c).

Fig. 7 (a) is the structure chart of the multiple control circuits in the robbery countermeasure device of an embodiment of the invention, figure 7 (b) is the circuit diagram of a control circuit.

Description of reference numerals

1 magnet unit

10 first holding members (rack)

20 second holding members (rack)

25 permanent magnets

35 coils

40 ceiling fixtures

45 is unshakable in one's determination

50 control circuits

60 operating portions

61 main parts

62 slide masses

63 pedals

71 base portion

72 resettlement sections

73 portions

N net

Detailed description of the invention

Below with Fig. 1 to Fig. 7, the robbery countermeasure device of an embodiment of the invention is illustrated.Plunder countermeasure Device has: multiple magnet units 1, have the control circuit 50 of in each magnet unit 1 and by user Operation carrys out the operating portion 60 that the coil 35 to magnet unit 1 is energized.Wherein, magnet unit 1 has the rack of holding net N, buries underground In the permanent magnet 25 of rack, the ceiling fixture 40 being arranged on ceiling, the iron core 45 being fixed on ceiling fixture 40, And the coil 35 wound around the axle center of unshakable in one's determination 45.

Illustrating in more detail, rack is combined formed by the first holding member 10 and the second holding member 20.First protects Hold parts 10 and the second holding member 20 is all formed from a resin, for substantially disc-shape.First holding member 10 is formed many Individual through-hole section 17, the position connected with through-hole section 17 with the state overlapped with the first holding member 10 on the second holding member 20 Form the female threaded hole 27 identical with through-hole section 17 quantity.Further, the second holding member 20 lower surface, i.e. with first keep Criss-cross elongated slot 21 is formed on the face that parts 10 abut.So, as it is shown in figure 5, criss-cross at the second holding member 20 On elongated slot 21, when passing the mesh of net N, the first holding member 10 and the second holding member 20 is utilized to clip net N, will The screw of the through-hole section 17 that have passed through the first holding member 10 is anchored on the female threaded hole 27 of the second holding member 20, such that it is able to Make the first holding member 10 and the second holding member 20 be integrally formed rack, keep net N.

It addition, permanent magnet 25 is annular, the lower surface at the second holding member 20 is formed and permanent magnet 25 diameter almost phase With and the Magnet of annular of the most recessed same widths bury hole portion 22 underground.The Magnet of this annular buries the center and ten in hole portion 22 underground The cross point alignment of the elongated slot 21 of font, Magnet buries the degree of depth thickness more than permanent magnet 25 in hole portion 22 underground.Further, protect first Hold the upper surface of parts 10, when making the second holding member 20 overlap with the first holding member 10, burying underground with Magnet Align in hole portion 22 but the position do not alignd with elongated slot 21 arranges multiple jut 12.Jut 12 has and is inserted into Magnet and buries underground The size in hole portion 22, its length buries the difference of the degree of depth in hole portion 22 and the thickness of permanent magnet 25 underground equal to Magnet.Therefore, will pass When the screw of through-hole section 17 is anchored on female threaded hole 27, if will permanent magnet 25 being embedded in after Magnet buries hole portion 22 underground Jut 12 inserts Magnet and buries hole portion 22 underground, so that it may so that the first holding member 10 of formation one and the second holding member 20 are fixed Position, and jut 12 can be utilized to push down from below be inserted into Magnet and bury the permanent magnet 25 in hole portion 22 underground, make permanent magnet 25 Bury underground in stable condition.

Additionally, in the present embodiment, towards top gradually the Frusto-conical undergauge protuberance 28 of undergauge from round The upper surface of the second holding member 20 of disk shape highlights with one heart.

Ceiling fixture 40 is the shape that the edge of the surrounding wall portion 42 top plate portion 41 from flat board and circle hangs down, by metal Make.Further, the lower surface at top plate portion 41 fixes columnar unshakable in one's determination 45 with one heart.Unshakable in one's determination 45 preferably by being easily magnetized, Easily the soft magnetic material of demagnetization is formed.The length of unshakable in one's determination 45 and the same length of surrounding wall portion 42.Additionally, at top plate portion 41 Center penetrate through fixing hole portion 47 be set.

On ceiling fixture 40, the resinous bobbin of Space configuration 30 between surrounding wall portion 42 and unshakable in one's determination 45, line Circle 35 is wound onto on bobbin 30.That is, coil 35 is wound around the columnar axle center of unshakable in one's determination 45.

Additionally, the external diameter from the prominent undergauge protuberance 28 of the upper surface of the second holding member 20 is configured to and cylindrical shape The internal diameter of iron core 45 essentially identical, the height of undergauge protuberance 28 is configured to the length less than unshakable in one's determination 45.As such, it is possible to make Two holding members 20 are close from the lower section of ceiling fixture 40, and the undergauge protuberance 28 of the second holding member 20 inserts ceiling peace In the iron core 45 of dress apparatus 40.As it has been described above, bury hole portion 22 underground at the Magnet of the second holding member 20 to bury the permanent magnet of annular underground 25, the diameter that permanent magnet 25 and Magnet are buried underground hole portion 22 is set, thus at the undergauge protuberance 28 of the second holding member 20 Inserting makes permanent magnet 25 be positioned at the columnar underface of unshakable in one's determination 45 under the state in the iron core 45 of ceiling fixture 40.

When being arranged on ceiling by the magnet unit 1 of said structure, first, ceiling is installed to have put into winding wired The ceiling fixture 40 of the bobbin 30 of circle 35.Such as, in advance fixed component is imbedded ceiling, by fixed component to inserting top The screw component in the fixing hole portion 47 of canopy fixture 40 keeps, and ceiling fixture 40 can be arranged on ceiling On.The great majority of the robbery of convenience store be disguise oneself as the convict of client across sales counter close to cashing machine, threaten employee to beat with cutter etc. Drive cashing machine, thus ceiling fixture 40 is arranged on the ceiling at the space that the front client of sales counter stands.

Then, as it has been described above, keep in the way of net N being clipped between the first holding member 10 and the second holding member 20 Net N, makes to bury hole portion 22 underground at the Magnet of the second holding member 20 and has buried the rack of permanent magnet 25 underground from below close to ceiling installation Apparatus 40.This operation is carried out when not being energized the coil 35 of ceiling fixture 40.Owing to being embedded in the second guarantor The permanent magnet 25 holding parts 20 attracts the iron core 45 of ceiling fixture 40, therefore rack by this absorption affinity via permanent magnet 25 It is maintained on ceiling fixture 40.At this point it is possible to by the undergauge protuberance 28 of the second holding member 20 being inserted unshakable in one's determination 45 Inside positions, and makes permanent magnet 25 be positioned at the underface of unshakable in one's determination 45.

Therefore, as it is shown in figure 5, become with the net N utilizing the rack of multiple magnet unit 1 to make mesh be put on hold throughout The mode of the state strutted, is correspondingly mounted to the position of ceiling fixture 40 with rack on ceiling in advance, thus can So that net N tension is arranged on ceiling.Further, coil 35 is not energized, but utilizes the captivation of permanent magnet 25, via Rack and maintain net N be maintained at the state on ceiling fixture 40.

When there is robbery, when convict is positioned at the lower section of net N, operating portion 60 is operated, to coil 35 energisings.Become magnet spool 35 because of energising and make unshakable in one's determination 45 to the direction magnetization repelled each other with permanent magnet 25.So, pass through Permanent magnet 25 and the repulsion of unshakable in one's determination 45, make the rack having buried permanent magnet 25 underground to remain the state of net N and to secure unshakable in one's determination 45 Ceiling fixture 40 depart from.With net N falls convict together with rack, the health of convict is snarled and is lost freedom, Such that it is able to prevent convict from runing away.

Here, as shown in Figure 6, operating portion 60 has: main part 61, and described main part 61 has the end being arranged on floor Seat portion 71, above base portion 71, define the resettlement section 72 of receiving space S and connect and to upper and lower with receiving space S To the cylinder portion 73 extended；Cylindrical slide mass 62, described slide mass 62 is inserted a portion 73 and moves up and down；Pedal 63, described Pedal 63 is supported on slide mass 62 and is positioned at the top in a portion 73；Operation switch, described operation switch is housed in receiving space S In, by contact make coil 35 power-off with the slide mass 62 declining state, by formation not with because pedal 63 is pushed up The state of slide mass 62 contact risen makes coil 35 be energized.

Being specifically described, base portion 71 is disc, is arranged on floor by the securing members such as screw or bonding.From It is circular protuberance 71b that the upper surface of base portion 71 highlights profile with one heart.The resettlement section 72 of main part 61 is lateral circle surface The drum that upper end is capped, the periphery in the hole portion at the center being arranged at resettlement section 72 upper surface arranges a portion 73 continuously Lower end.So, the receiving space S of resettlement section 72 connects with the inner space in cylinder portion 73.The internal diameter of resettlement section 72 and base portion 71 The external diameter of protuberance 71b essentially identical, resettlement section 72 is on protuberance 71b.It addition, along outward on protuberance 71b Side face forms groove, keeps the interface of the inner peripheral surface with resettlement section 72 to keep the O 66 of watertight in this groove.

Cylinder portion 73 is inserted by cylindrical slide mass 62.The lower end of slide mass 62 is positioned at receiving space S, pacifies in this lower end Fill one end of helical spring 65.The other end of helical spring 65 is installed in the upper surface of the protuberance 71b of resettlement section 72, to Slide mass 62 is exerted a force by lower section.It addition, slide mass 62 has diameter flange portion 62b more than cylinder portion 73 internal diameter at lower end. Near the upper end of slide mass 62, more through along direction orthogonal to the axial direction than the pin portion 62c of the outer path length in cylinder portion 73 and fix.Separately On the one hand, it is oppositely disposed a pair U-shaped grooving 73b to open upper end in cylinder portion 73, is inserted into slide mass 62 at this grooving 73b Pin portion 62c.It addition, in cylinder portion 73, in grooving 73b lower end slightly below, form groove orthogonal to the axial direction along inner peripheral surface, The O 67 of itself and the interface holding watertight of the outer peripheral face of slide mass 62 is maintained in this groove.Further, upper at slide mass 62 End, the pedal 63 of fixed disc shape on direction orthogonal to the axial direction.

By above-mentioned structure, slide mass 62 can move up and down in cylinder portion 73, by being inserted into U-shaped grooving 73b's Pin portion 62c, limits the slide mass 62 rotation around the axle in cylinder portion 73, is abutted by the lower end of pin portion 62c with U-shaped grooving 73b, Limit slide mass 62 to moving further below.It addition, slide mass 62 upward be moved through flange portion 62b and resettlement section 72 The abutting of upper surface and be restricted, thus prevent slide mass 62 from departing from from cylinder portion 73.Slide mass 62 is due to its deadweight and spiral The force of spring 65, is being in the lower position (with reference to Fig. 6 (a), (b)) moved up and down at ordinary times.Further, it is positioned at slide mass 62 Under the state of lower limit, the microswitch as operation switch (omitting diagram) that after being pressed by slide mass 62, contact disconnects is received It is dissolved in receiving space S.

So, operate by the way of pushing away pedal 63 above, i.e. grasp in the way of kicking up pedal 63 from below Make, so that slide mass 62 is resisted deadweight and the force of helical spring 65 and risen (with reference to Fig. 6 (c), (d)), connect fine motion and open The contact closed.Further, the contacting of microswitch and flow through the electric wire C (with reference to Fig. 7) of electric current at main part 61 via through It is arranged on the electric wire inserting hole 72b of the side perisporium of resettlement section 72 and is directed to outside.Between this electric wire inserting hole 72b and electric wire C It is watertight sealed.Although additionally, Fig. 6 (c), (d) illustrates slide mass 62 and is positioned at the situation of the upper limit, but open to connect fine motion Close without making it rise to the upper limit.

The robbery countermeasure device of present embodiment also has control circuit 50, and this control circuit 50 is by connecing at operating portion 60 Coil 35 is energized by the contact of logical microswitch.Control circuit 50 arranges one in each magnet unit 1, as it is shown in fig. 7, The coil 35 making each magnet unit 1 is connected in parallel relative to two power lines A, B.

Each control circuit 50 has the capacitor as the charge storage element SC storing electric charge, regulation is flowed to electricity by power supply The resistance R1 of the electric current of container and switch on and off switch element SW coil 35 discharged by capacitor.By such knot Structure, the electric current that power line A, B can be made to provide gradually flows into capacitor be charged according to the setting of resistance R1 value.Therefore, Even with many magnet units 1 such as dozens ofs, it is not required that big electric current, the shape making capacitor constantly charge can be formed State.After capacitor charging, power line A, B flow almost without electric current.

Further, when being connected the contact of microswitch by the pedal 63 of operation operating portion 60, by making current flow through electricity Line C and at each control circuit 50 ON switch element SW.So, by the electric capacity of each corresponding to multiple magnet units 1 Each coil 35 is discharged by device simultaneously, and coil 35 becomes electric magnet.Capacitor after electric discharge is by the electricity provided by power line A, B Stream is recharged.Additionally, in the present embodiment, the electric double layer that can store jumbo electric charge is employed as capacitor Capacitor, employs IGCT as switch element SW.It addition, each control circuit 50 has full-wave rectifying circuit D1～D4 peace Sliding capacitor FC, can use any one in alternating current power supply and DC source as power supply.

Additionally, for each of a control circuit 50 having in each magnet unit 1, it is provided with and removes The substrate of the element outside coil 35 is housed in housing.This housing can be set up in parallel with magnet unit 1, it is also possible to magnetic Ferrum unit 1 forms one.For example, it is possible to ceiling fixture is formed such structure, i.e. this structure has collecting by coil The space of the substrate of the space of 35 bobbins wound and collecting control circuit 50, can make the substrate of collecting control circuit 50 Part doubles as the dividing plate of regulating magnet unit 1 and ceiling distance.

As it has been described above, according to the robbery countermeasure device of present embodiment, it is possible to do not make employee prevent convict with staying dangerous situation Escape, so that robbery crime failure.Even if can also not have in the case of only one of which employee it addition, plunder countermeasure device Problem ground uses.Therefore, it is possible to provide the new robbery countermeasure device that the shop aspects such as convenience store can use.

It addition, in this configuration, not being energized coil 35, the captivation of the aid of permanent magnet 25 makes ceiling fixture 40 keep net N, Cai be only energized coil 35 under the state of emergency that there occurs robbery, therefore, having need not be in order to maintain The advantage plundering countermeasure device and spend the electricity charge.

In addition, net N is not that nature falls, but by scolding by electric magnet magnetized unshakable in one's determination 45 and permanent magnet 25 Power and accelerate to cast, with naturally fall net N compared with, net N falling speed accelerate.Therefore, it can reduce the wind on the opportunity of missing Danger, covers criminal with net N.

It is additionally, since the rack (first holding member 10 and the second holding member 20) fallen together with netting N by resin-made Become, therefore, different from the situation that metal parts fall, even if meeting people also almost without injured risk.Even if Robber, is also not intended to make it injured to catch, and according to the robbery countermeasure device of present embodiment, has and there's almost no The advantage of such risk.If additionally, air drag is identical, the decrease speed of object is not dependent on the weight of object, therefore, Rack is formed from a resin and will not have a negative impact the effect making net N fall.

It addition, have employed such structure, i.e. make each magnet unit 1 have a charge storage element SC, at ordinary times to storage Electric device SC is charged, and when an operation switch is turned on, electric current once flows through the coil 35 of multiple magnet unit 1.So, with by electricity The situation that the coil 35 of multiple magnet units 1 is directly powered by source simultaneously is compared, and the electric current of the required supply of power supply is the least, because of This, power line A, B are Thin cables, have the advantage that need not power source wire.

It addition, as usually to structure charged for charge storage element SC, either powered generally by power supply, Or in the case of having a power failure, coil 35 is magnetized by the discharge current from charge storage element SC the most equally.Therefore, there is no need to as defence Have a power failure and emergency power supply is set.Further, charge storage element SC can make coil 35 magnetize once, and therefore required capacity is Known.Therefore, there is no not know power failure to be lasted long as defence and arrange in the case of emergency power supply uncertain Property.

Additionally, the small battery can being arranged on substrate can be used as charge storage element SC, but if electric power storage Pond, exists and causes cannot providing when emergency the risk of required electric current, so needing periodic maintenance to protect because naturally discharging Support.On the other hand, in the present embodiment, owing to have employed usually charged to capacitor structure, the most easily manage Reason.Further, since the capacity regulating electric current of capacitor can be utilized to flow through the time of coil 35, therefore, there is no need to controlling electricity The circuit controlling conduction time is set on road 50.

Further, since the structure that operating portion 60 is operated by formation foot, therefore convict is not easy to perceive connection behaviour Make the action switched.Further, since be, therefore may not be used by upwards playing the structure of making operation switch by tramping with one's feet down To be effectively prevented unconscious making operation.It addition, the movement that the slide mass 62 moved up and down together with pedal 63 is downwards It is limited to the position that the lower end of pin portion 62c and U-shaped grooving 73b abuts.Therefore, even if step in daily action and step on by mistake Plate, the operation that load also will not be applied to usually contact with slide mass 62 switchs.

Although it addition, the operating portion 60 carrying out operating with foot is arranged on floor, but the collecting of housing operational switch is empty Between S be kept watertight by O 66,67 etc., therefore, it is possible in order to clean when ground uses water or prevent during Flooding because of Operate switch short and cause netting the problem that N unconsciously falls.

Above, the present invention is illustrated and is preferred embodiment illustrated, but the present invention is not limited to above-mentioned Embodiment, as follows, without departing from the scope of the subject in the invention, various improvement and design alteration can be carried out.

Such as, in the above-described embodiment, by the situation that robbery countermeasure device is arranged on the ceiling of convenience store to be Example, but be not limited to this, it is also possible to the robbery countermeasure device that used as other shop or bank and other financial mechanism and make With.

Claims (3)

1. plunder countermeasure device for one kind, it is characterised in that possessing magnet unit, described magnet unit has:

Keep the rack of net；

It is embedded in the permanent magnet of this rack；

The ceiling fixture being arranged on ceiling；

It is fixed on the iron core on this ceiling fixture；And

The coil wound around the axle center of this iron core,

Not to described coil electricity time, described iron core is adsorbed by described permanent magnet, so that described rack is maintained at described On ceiling fixture,

By to described coil electricity, make described iron core be magnetized to the direction repelled each other with described permanent magnet, by this repulsion, make Described rack departs from described ceiling fixture.

Robbery countermeasure device the most according to claim 1, it is characterised in that

Being also equipped with control circuit, described control circuit has one in each described magnet unit,

This control circuit has charge storage element and makes the electric discharge of this charge storage element the switch element to described coil electricity.

Robbery countermeasure device the most according to claim 1 and 2, it is characterised in that be also equipped with operating portion, described operating portion has Have:

Main part, described main part have be arranged on floor base portion, form receiving space above this base portion Resettlement section and the cylinder portion connecting with described receiving space and vertically extending；

Slide mass, described slide mass is inserted cartridge and moves up and down, and forms mandrel rod shape；

Pedal, described pedal is supported on described slide mass and is positioned at the top of cartridge；

Operation switch, described operation switch is accommodated in described receiving space, by contacting with the described slide mass declining state Make described coil blackout, come by forming the state not contacted with the described slide mass risen because being pushed up by described pedal Make described coil electricity.