JP4540245B2 - Wire lock - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wire lock.
[0002]
[Prior art]
As a wire lock used for locking a two-wheeled vehicle, a wire lock described in Japanese Patent Application Laid-Open No. 58-120965 is conventionally known. In this conventional example, the wire lock has an anti-theft device fixed to the vehicle main body and a flexible strip connected to the anti-theft device via a plug. An electric wire is disposed on the flexible strip, and when a breaking operation is applied to the flexible strip, the detection unit in the anti-theft device detects this and activates the alarm device of the vehicle body.
[0003]
[Problems to be solved by the invention]
Since the flexible strip in the conventional example described above is also used as a signal transmission means for transmitting an abnormal signal in the flexible strip, it is necessary to be connected to an anti-theft device. Since the strip is also used as a mechanical connecting means for restraining the vehicle body to a pole or the like, the antitheft device serving as a holding portion for the flexible strip is fixed to the vehicle body. It is necessary to keep.
[0004]
However, in the structure in which the antitheft device and the flexible strip are electrically and mechanically connected as described above, the mechanical connection portion with the vehicle body can be simplified by following the flexible strip. Therefore, the fixing portion between the antitheft device and the vehicle main body is likely to be destroyed. For this reason, the anti-theft device needs to be firmly fixed to the vehicle main body, the design of the vehicle main body is damaged, or the device is enlarged, and the length of the flexible strip is also determined. There is a drawback that the installation position of the lock target, such as the stop position of the main body, is limited and the usability is poor.
[0005]
Further, when the flexible strip is cut and the vehicle main body is taken away, the antitheft device fixed to the vehicle main body is also taken away, and the date and time of theft cannot be specified. As a result, for example, in an insurance contract that promises insurance benefits due to theft, it becomes necessary to prove the fact of theft.
[0006]
The present invention has been made to eliminate the above drawbacks, and an object of the present invention is to provide a wire lock having a simple structure and capable of easily locking a desired lock target.
[0007]
Another object of the present invention is to provide a wire lock that can specify the time when the wire body is abnormally broken.
[0008]
[Means for Solving the Problems]
The wire body 2 can maintain a closed loop shape by connecting both ends via the locking portion 3, and the movement of the lock target can be restricted by maintaining the closed loop shape. The locking unit 3 can be configured in various ways, and can be unlocked by using a so-called cylinder lock that can be locked and unlocked by a key plate having a predetermined unlocking code, or by pressing a specific operation button. So-called button locks that can be operated can be used.
[0009]
When the breakage detection conductor 4 is broken, the control unit 5 generates a cut alarm signal. For detecting the breakage of the breakage detection conductor 4, a minute current is passed through the breakage detection conductor 4, and a potential change caused by cutting the breakage detection conductor 4 is used, or a potential due to a short circuit to a ground conductor by a blade or the like. Change is available.
[0010]
The timing of detection of the breaking operation to the wire body 2 by the break detection conductor 4 can be determined as appropriate depending on the position of the break detection conductor 4, and when the break detection conductor 4 is disposed deep in the wire body 2, It is detected just before the main body 2 is completely cut and the closed loop shape is eliminated. On the other hand, if the breakage detection conductor 4 is arranged on the surface layer portion of the wire body 2, it is possible to detect damage to the surface layer portion of the wire body 2, and quickly perform necessary processing before the completion of cutting of the wire body 2. For this purpose, it is desirable to dispose the breakage detection conductor 4 in the vicinity of the outer skin of the wire body 2.
[0011]
The break alarm signal generated in the control unit 5 is transmitted from the antenna conductive wire. The transmitted break alarm signal is received by the receiving device 8 attached to the lock target or in the vicinity thereof, and for example, the alarm device can be activated.
[0012]
In the present invention in which a break alarm signal is transmitted from the antenna conductor 1, the receiving device 8 can be installed at a desired position. Therefore, the wire lock itself is connected to a lock target for transmission / reception of the break alarm signal. There is no need. As a result, it is not necessary to separately provide an electrical signal connecting portion between the wire lock and the lock target, so that no new work is required for the lock target, and installation is simplified. Further, for example, it is possible to constrain the lock target only by the wire body 2 of the wire lock, and to install the receiving device 8 in an inconspicuous place other than the lock target or a place out of reach, thereby improving versatility.
[0013]
The control unit 5 includes memory means 6 for storing time information when the breakage detection conductor 4 detects breakage of the wire body 2 and can be configured to be housed in the hard outer shell 12a of the locking part 3. .
[0014]
When the wire main body 2 is broken, the wire lock is dropped from the lock target such as the vehicle main body and is usually left at a theft site. On the other hand, the break time is stored in the memory means 6 as time information, and when the wire lock with the wire body 2 broken is collected at a later date, it becomes possible to specify the time such as the date of theft.
[0015]
The stored contents in the memory means 6 can be taken out by destroying, for example, the wire lock, but can be easily taken out without breaking the wire lock if it can be transmitted on the air propagation medium. Radio waves, infrared rays, etc. can be used as the air propagation medium.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIGS. 1 to 3, the wire lock is provided with a bendable wire body 2 having a connecting body 9 to the locking portion 3 fixed at one end, and the other end of the wire body 2, and the connecting body 9 is connected to the wire 9. The locking part 3 which can maintain the wire main body 2 in a loop shape by receiving in the connection part 10 is provided.
[0017]
The wire body 2 is formed by covering a core material 2a obtained by twisting a plurality of steel wires with an outer skin 2b made of a synthetic resin material or the like, and the wire coating 2c on the outer periphery of the core material 2a is used as a break detecting conductor 4. The rupture detection conductive wire and the antenna conductive wire 1 are wound with insulation therebetween. The break detecting conductive wire 4 and the core member 2a are connected in a control unit 5 which will be described later, and the break detecting conductive wire 4 is short-circuited to the core member 2a at the end of the connecting body 9 fixed side. On the other hand, the antenna conductive wire 1 is connected to a transmitting unit 7 in the control unit 5 to be described later, and is opened at the terminal on the fixed side of the coupling body 9 and functions as an antenna for the radio wave generated in the control unit 5.
[0018]
In FIG. 2, the case where the antenna conductive wire 1 and one break detection conductive wire 4 are wound around the core 2a is shown. However, the core 2a is used as a conductive wire for the detection circuit. Alternatively, the two break detecting conductive wires 4 can be wound around the core member 2 a together with the antenna conductive wire 1.
[0019]
The locking part 3 includes a detection part 11 for detecting the connection state of the connecting body 9 and a control part 5, and is formed by connecting a mediation part 12 fixed to the other end of the wire body 2 to the lock body 13. The The lock body 13 includes a pair of wire connecting holes (wire connecting portions 10) to which the auxiliary connecting body 14 of the mediating portion 12 and the connecting body 9 can be connected, and a pair of latches corresponding to the wire connecting holes 10 and 10. 15 and 15 are provided. Each latch 15 is rotatable between a retracted position from the wire connecting hole 10 and an intruding position into the wire connecting hole 10, and is urged toward the intruding position by a latch spring 15a made of a torsion spring.
[0020]
Each latch 15 includes a curvature locking surface 15b having a center of curvature as the center of rotation, and a curved locked surface 16 having substantially the same curvature as the curvature locking surface 15b is formed on the connecting body 9 and the auxiliary connecting body 14. When the connecting body 9 or the auxiliary connecting body 14 is inserted into the wire connecting hole 10, each latch 15 is pushed by the connecting body 9 or the auxiliary connecting body 14 and once rotated to the retracted position in the direction of the arrow in FIG. The latch spring 15a returns to the intrusion position by the restoring force, and the curvature locking surface 15b comes into contact with the curvature locked surface 16. In this state, since the rotation of the latch 15 is allowed only in the retracting direction, the connecting body 9 or the auxiliary connecting body 14 can be removed from the wire connecting hole 10 even if a pulling force is applied to the wire body 2. It cannot be desorbed.
[0021]
The lock body 13 accommodates a rotor 17 that can be rotated only by a key plate having a proper unlocking code, and a latch operation mechanism 18 is disposed between the end portion of the rotor 17 and the latch 15. Is done. The latch operating mechanism 18 resists the urging force of the latch spring 15a by pressing the protrusion 15c provided on the latch 15 corresponding to the coupling body 9 when the rotor 17 is rotated to the unlocking rotation angle. Then, it is configured to rotate to the retracted position, and by giving the rotor 17 a rotation operation, the restraint of the coupling body 9 can be released.
[0022]
In this embodiment in which the mediation unit 12 and the lock body 13 are configured separately, the control unit 5 is accommodated in the mediation unit 12 covered with a hard outer shell 12a in order to prevent external destruction. . Further, the pair of wire connecting holes 10 are formed as communicating holes facing each other, and a switch rod 11 a constituting the detecting unit 11 protrudes from the auxiliary connecting body 14 of the mediating unit 12. The switch rod 11a is urged in the projecting direction by the compression spring 11b and is inserted into the center of the auxiliary connecting body 14 so as to be able to advance and retract. When the connecting body 9 is inserted into the corresponding wire connecting hole 10, the connecting body 9 When the link body 9 is pushed and retracted, and the connecting body 9 is detached, it is returned to its original position by the restoring force of the compression spring 11b, and the state of the locking switch 11c in the mediating portion 12 is changed.
[0023]
In addition, although the locking part 3 is comprised by connecting the mediation part 12 and the lock main body 13 in the above, it can also comprise in the same case.
[0024]
As shown in FIG. 4, the control unit 5 includes a central processing unit (CPU), and the breakage detection conductor 4 is connected to a switching element 19 such as a MOS FET that supplies disconnection flag information to the CPU. The breakage detection conductor 4 is connected to a built-in power source 20 such as a battery incorporated in the mediation unit 12 via the locking switch 11c, and the coupling body 9 is coupled to the wire coupling unit 10 so that the locking switch 11c is turned on. When the detection unit 11 detects the connection of the wire body 2, power supply to the breakage detection conductor 4 is started.
[0025]
When the breakage detection conductor 4 is cut with a cutter or the like from this state, the gate potential of the switching element 19 rises and the drain-source becomes conductive, and the flag information input terminal 21 of the CPU is “High” (flag reset state). To “Low” (flag set state).
[0026]
FIG. 5 shows the operation of the control unit 5. The control unit 5 that has confirmed the power supply to the breakage detection conductor 4 first executes the monitoring routine (R1), and when the disconnection of the wire body 2 is detected in the monitoring routine (R1), executes the alarm transmission step (S1). . The monitoring routine (R1) includes a mode identification step (RS11) and a lock code transmission step (RS12). The lock switch 11c is OFF, that is, the connecting body 9 of the wire body 2 is removed by a normal unlocking operation. Repeat until.
[0027]
When the output of the flag information input terminal 21 is confirmed in the mode identification step (RS11) and the flag set state is not confirmed, that is, when the breakage detection conductor 4 is in the conductive state, the locking code transmission step (RS12) is executed. In the lock code transmission step (RS12), in order to prevent the built-in power supply 20 from being consumed, first, the transmitted flag is confirmed, and only when the transmitted flag is not set, the transmitted flag is set, and then the ID A lock signal including information is generated, and the radio wave is transmitted to the outside through the transmitter 7 and the antenna conductive wire 1 as a medium.
[0028]
The alarm transmission step (S1) is executed when a flag set signal is input to the flag information input terminal 21 in the monitoring routine (R1). In the alarm sending step (S 1), first, the current date and time (break date and time) is loaded from the clock circuit 22 in the control unit 5 and then stored in the memory means 6. Next, a disconnect warning including ID information and break date information are transmitted from the transmitter 7 and the antenna 1. The disconnection alarm information and the like are transmitted for a predetermined time in order to reduce the consumption of the built-in power source 20 as much as possible, and a counter is used to control the transmission time.
[0029]
On the other hand, when the wire lock that has been abandoned at the theft site is taken home, and once the connecting body 9 of the wire body 2 is detached and further connected, the memory loading step (S2) branches from the monitoring routine (R1). The break date information is loaded from the memory means 6, and then the break date information is transmitted from the antenna for a predetermined time.
[0030]
FIG. 6 shows a block diagram of the receiving device 8 constituting the antitheft device together with the wire lock described above. In this embodiment, the receiving device 8 is used by being fixed to a vehicle body, and includes a control unit 8a and a receiving unit 8b. When the receiving unit 8b receives a locking code transmitted as a radio wave from the wire lock with the completion of locking of the wheel or the like by the wire body 2, the control unit 8a first generates a warning start signal after confirming that the ID information matches. Then, the warning mode LED 8c is turned on to shift to the warning mode. The alert mode is maintained until an unlock code is received from the wire lock. When the disconnection alarm information is transmitted from the wire lock during the alert mode, the disconnection detection LED 8d blinks or lights up, and at the same time, the alarm alarm 8e is sounded. . In addition, the receiving device 8 includes a transmitting unit 8f including a dialer, and the control unit 8a that has received the disconnect alarm dials the mobile terminal device such as a mobile phone from the transmitting unit 8f to contact the owner. Is called.
[0031]
In addition, when directly fixing to a lock target such as a vehicle body, a GPS (Global Positioning System) 8g or the like can be mounted on the receiving device 8 and the current position can be transmitted periodically. Further, if the ID setting unit 8h is provided in the receiving device 8, when the broken wire lock is changed to a new one, the ID information of the receiving device 8 matches the ID information set in the wire lock. Can be made.
[0032]
【The invention's effect】
As is apparent from the above description, according to the present invention, a desired lock target can be easily locked with a simple structure.
[Brief description of the drawings]
FIG. 1 is an overall view showing a wire lock.
2A is a longitudinal sectional view, FIG. 2B is a sectional view taken along the line 2B-2B of FIG. 2A, and FIG. 2C is a sectional view in the vicinity of a coupling body.
FIG. 3 is a cross-sectional view showing a state in which a connecting body is connected to a locking part.
FIG. 4 is a block diagram of a control unit.
FIG. 5 is a flowchart showing an operation of a control unit.
FIG. 6 is a block diagram of a receiving device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Conductive wire for antenna 2 Wire body 3 Locking part 4 Breaking detection conductor 5 Control part 6 Memory means 7 Transmitting part

Claims (3)

A wire body containing a conductive wire for an antenna;
A locking part capable of maintaining the closed loop shape of the wire body by connecting both ends of the wire body;
A break detection conductor for detecting a break operation to the wire body;
A controller for generating a break alarm signal when the break detection conductor detects a break operation and transmitting from the antenna conductive wire ;
The wire body is formed by twisting a plurality of steel wires and covering the outer periphery with a core material covered with an outer skin made of a synthetic resin material or the like, and the break detection conductor is outside the wire coating. Wire lock placed on the surface layer . The wire lock according to claim 1 , wherein the control unit includes memory means for storing time information when the break detection conductor detects the breakage of the wire body , and is housed in the hard outer shell of the locking unit . The wire lock according to claim 2, further comprising a transmitter capable of transmitting the contents of the memory means on the air propagation medium.

Images