JP2000128041A - Anti-theft device for bicycles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an anti-theft device for bicycles that is easy to operate and is extremely effective in preventing theft. SOLUTION: This device comprises a rotation sensor 3 that detects a rotating wheel of a bicycle, a lock 5 that locks the bicycle, an information processor 6 to which signals are input from the rotation sensor 3 and the lock 5, and an alarm generator 7 that is activated by a signal from the information processor 6. If a predetermined number of signals are received from the rotation sensor 3 without receiving an authentic unlock signal from the lock 5, the information processor 6 activates the alarm generator 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a bicycle anti-theft device.

[0002]

2. Description of the Related Art As is well known, bicycle anti-theft devices generally lock the rotation of wheels directly. For example, there is one that protrudes a rod from a lock attached to a fork portion to stop the movement of the spoke. In addition, what is called a wire lock, by fitting a wire to a lock body that unlocks when about four digits are combined,
Any part of the bicycle can be locked.

[0003] In recent years, an electronic lock has been employed in place of such a mechanical lock. Many of them are provided with a keyboard for inputting a recite number, and generally, a lock cannot be released without inputting a recite number.

[0004]

However, in the conventional anti-theft device described above, the bicycle is easily stolen if the lock mechanism is broken, whether it is a mechanical lock or an electronic lock. Would. Moreover, it is difficult to determine at a glance whether a lock mechanism has been broken or not, and it is unlikely that a criminal will be arrested, and a bicycle that has been abandoned after the theft can be found. There is a problem that the property is low.

[0005] In addition, the operation for inputting a password for reciting a lock is complicated, and an erroneous operation may be performed when the user is in a hurry. SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its technical object to provide a bicycle anti-theft device that is easy to operate and has a strong anti-theft effect.

Another object of the present invention is to provide a device that makes it easy to find a stolen bicycle.

[0007]

SUMMARY OF THE INVENTION The present invention is a bicycle anti-theft device, and is configured as follows to solve the above-mentioned technical problem.

That is, in the first invention, a rotation sensor 3 for detecting rotation of the wheel 2 of the bicycle 1, a lock portion 5 for fixing the bicycle 1, and a signal from the rotation sensor 3 and the lock portion 5 are input. Information processing unit 6 and an alarm generation unit 7 activated by a signal from the information processing unit 6, and the information processing unit 6 does not input a genuine unlocking signal from the lock unit 5. When a predetermined amount of signal is received from the rotation sensor 3, the alarm generator 7 is activated (corresponding to claim 1).

A second invention is characterized in that, in the first invention, the information processing section 6 is provided with a delay section 8 for operating the alarm generation section 7 with a predetermined time delay (claim 2).
Corresponding to).

According to a third aspect of the present invention, in any one of the first and second aspects, the lock portion 5 is provided with a detachable key 4.
And a code judging unit 9 for judging the authenticity of the key 4 by electronic code matching (corresponding to claim 3).

Here, as the rotation sensor 3, a magnet 3a is provided on the wheel 2 side, while a magnetic sensor is provided on the chain stay 1a or the like, and a pulse generated each time the magnetic sensor detects magnetism is counted. May be configured to be detected.

The key 4 and the lock portion 5 into which the key 4 can be freely inserted and removed may be a type that detects a match in mechanical shape, but may be an electronic type. For example, the magnetic pattern is arranged in a predetermined shape as the key 4, while the lock unit 5 detects this magnetic pattern and outputs whether or not it has the predetermined shape.

Further, it is possible to use the key 4 as an IC card with higher security. When the authenticity of the key 4 is determined based on the electronic code matching, the code determination unit 9 needs to be provided. In addition, the lock part 5 can also be made into the concept including the lock device (32) which fixes the rotation of the wheel 2 and the steering wheel actually.

The information processing section 6 does not operate the alarm immediately after detecting the signal of the rotation sensor 3, but, for example, does not operate up to the third rotation position, and activates the alarm when the rotation speed exceeds this. can do. This is for the purpose of preventing a warning from being issued in such a case where somebody may move the bicycle when the bicycle is in the way of traffic. For example, when the lock portion 5 is provided on the front wheel side of the bicycle and the rotation sensor 3 is provided on the rear wheel side, it is conceivable that the manager of the bicycle parking lot moves the bicycle while lifting the front wheel.

The information processing section 6 includes an alarm generation section 7
Is that the alarm is not sounded at the time of theft, and an alarm is given when the thief is safe after about 30 seconds to 1 minute. This is because the security effect may be large. In other words, bicycles are stolen in places and times where there are relatively few passersby, so some time passes and thieves are more crowded than immediately issuing an alert on the spot. It is more effective to issue an alert when you reach the place.

The alarm generator 7 can be constituted by a combination of a speaker and a sound generator in addition to the siren. When a speaker and a sound generator are combined, for example,
A synthesized voice or a sampled voice such as "Thief!""This bicycle is stolen" may be generated. Further, the alarm generator 7 may be configured to blink a lamp. Such an operation of the alarm generation unit 7 makes it easy to find a bicycle that has been abandoned after being stolen.

The operation of the antitheft device for a bicycle according to the present invention will be briefly described. When the bicycle is parked, the removable key 4 is pulled out from the lock portion 5. Then, there is no signal from the rotation sensor 3 and the lock 4 has no key 4. When the wheel 2 is rotated in this state, the information processing unit 6 determines that the vehicle is in the theft state, and activates the alarm generation unit 7.

Therefore, even if the bicycle lock device or the like is destroyed and a thief tries to remove the bicycle, an alarm sounds and the crime can be abandoned. In addition, there is no need to type numbers with a keyboard, and security can be released simply by inserting the key 4 into the lock 5, so that the bicycle can run smoothly and is convenient.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the bicycle anti-theft device of the present invention will be described in more detail with reference to the embodiments shown in FIGS.

As shown in FIG. 3, this device includes a main control unit 30 provided on the chain stay 1a side of the bicycle 1.
And a remote control unit 20 provided on the handle 1b side of the bicycle 1, and both are wirelessly linked.

As shown in FIG. 2, the remote control unit 20 is provided with a lock 5 having a key 4 which can be freely inserted and removed. The key 4 is formed in a plate shape, and has a magnetic pattern arranged in a predetermined shape on its surface. On the other hand, the lock section 5 detects this magnetic pattern and outputs whether or not it has a predetermined shape.

The main control unit 30 further includes a display plate 22 for displaying the running state (running speed, gear position, etc.) of the bicycle 1, a switch button 24 for switching the display content of the display plate 22, and a bicycle 1 A transmission lever 23 for remotely controlling the transmission 1c is provided. The speed change lever 23 is provided with a push switch for designating upshift and downshift, respectively, and this push switch is a seesaw switch that is swingably supported by a shaft.

The signal output from the lock unit 5 and the display panel 2
2 and operation data by the shift lever 23 are transmitted and received by the transceiver 21.
Note that a code determination unit 9 that determines the authenticity of the key 4 based on a match between electronic codes is inserted between the lock unit 5 and the transceiver 21.

On the other hand, a rotation sensor 3 is provided in the main control unit 30, and a magnet 3a attached to the wheel 2 side is provided.
The rotation of the wheel 2 is detected by detecting the magnetism of the wheel 2 and counting its pulses.

Further, a transmitter / receiver 31 linked to the transmitter / receiver 21 is provided in the main control unit 30, and the communication protocol of the transmitter / receiver 31 is controlled by the information processing unit 6 connected to the next stage. It has become. A signal from the rotation sensor 3 and a key presence / absence signal from the lock unit 5 are input to the information processing unit 6, while a lock device 32 for locking the rotation of the wheel 2 and an alarm generator (alarm generation unit)
7 is configured to send a control signal.

The information processing section 6 sets a flag when receiving a predetermined amount of signal from the rotation sensor 3. That is, a flag is not set when the rotation sensor 3 detects about three pulses (not determined as theft), and a flag is set when the rotation sensor 3 exceeds the pulse (determined as theft). This is for the purpose of preventing a warning from being issued in such a case where somebody may move the bicycle when the bicycle is in the way of traffic.

Further, the information processing section 6 is provided with a delay section 8 for driving the alarm generator 7 with a predetermined delay. The delay time of the delay unit 8 can be arbitrarily set from about 30 seconds to about 1 minute, and does not sound an alarm at the time of theft. About 30 seconds after the theft, the alarm is issued when the thief is relieved. Is issued.

The operation of the above configuration will be described with reference to the flowchart shown in FIG. When the user parks the bicycle, the key 4 is pulled out of the lock unit 5 (step S10).
1), the code judging unit 9 sends to the transceiver 21 that the key 4 does not exist in the lock unit 5, and the output signal from the transceiver 21 is received by the transceiver 31. Then, the information processing section 6 receives the signal from the transceiver 31 and
Is turned on (step S102).

In this lock-on state, the information processing section 6
Monitors the signal from the rotation sensor 3 and determines whether the wheel 2 has rotated a predetermined amount (for example, three rotations) within a predetermined time (for example, within 10 seconds) (step S103). The affirmative branch in step S103 moves to step S104,
The delay unit 8 of the information processing unit 6 determines whether 30 seconds have elapsed since the bicycle 1 started moving, and when 30 seconds have elapsed, activates the alarm generator 7 (step S105).

When the genuine key 4 is inserted into the lock section 5, the information processing section 6 operates the lock device 32 to the lock-off state even during any of the above-described steps. Then, the process returns to step S101.

As described above, even if the bicycle locking device is destroyed and the bicycle is taken away, an alarm sounds and the crime can be abandoned. Also, when unlocking the lock, there is no need to type numbers with the keyboard, just insert the key into the lock to release security, so the user can smoothly perform the initial operation of riding a bicycle. It can be carried out.

Further, the bicycle 1 according to the present embodiment may be provided with an automatic transmission that performs an automatic shift using a signal from a rotation sensor (speed sensor) 3. For example, when the speed of the bicycle is less than 8 km / h based on the rotation speed signal of the wheel 2, the microcomputer (the information processing unit 6) selects the low gear. When the speed of the bicycle is 8 km / h or more and less than 15 km / h, the microcomputer selects the second gear. Similarly, when the bicycle is at a speed of 15 km / h or more, the microcomputer automatically controls the transmission, such as selecting a third (top) gear. In this case, the transmission is desirably provided inside a hub provided on the rear wheel axle, and the transmission rod slidably provided on the shaft center portion of the transmission is moved in the axial direction, so that the transmission is provided. Set to change gear position. The transmission rod is biased outward from the hub by a spring provided in the hub. When the transmission rod is pressed (moved inward) by the driving force of the actuator, the gear position is lowered, and when the transmission rod is returned by operating the actuator (moved outward), the transmission is moved so that the gear position is raised. It is good to configure.

By providing such an automatic transmission in the bicycle 1, a speed sensor and a microcomputer can be used in combination with the structure of the bicycle anti-theft device, so that the driving operability is further improved while keeping the entire bicycle at a low price. Could provide a bicycle.

[0034]

According to the bicycle anti-theft device of the present invention, the information processing section activates the alarm generation section on condition that a predetermined amount of signal is received from the rotation sensor without inputting a genuine unlocking signal. Since it is configured to operate, even if the bicycle lock device or the like is destroyed and the bicycle is taken away, an alarm is generated and the thief can abandon the crime.

Further, since the alarm generating section is activated after a predetermined time has elapsed since the bicycle was stolen, the probability of arrest of the thief is increased, leading to a deterrent effect on crime, and the stolen bicycle is also owned by the owner. It is easy to return to.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a bicycle anti-theft device according to an embodiment of the present invention.

FIG. 2 is a plan view showing the vicinity of a lock portion of the bicycle antitheft device according to one embodiment of the present invention.

FIG. 3 is a side view showing a state in which the bicycle antitheft device according to one embodiment of the present invention is mounted on a bicycle.

FIG. 4 is a flowchart illustrating the operation of the bicycle antitheft device according to one embodiment of the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bicycle 2 Wheel 3 Rotation sensor 4 Key 5 Lock part 6 Information processing part 7 Alarm generator (alarm generation part) 8 Delay part 9 Code judgment part

 ──────────────────────────────────────────────────続 き Continuing on the front page F term (reference)

Claims (3)

[Claims] 1. A rotation sensor for detecting rotation of a wheel of a bicycle, a lock for fixing a bicycle, an information processor for inputting signals from the rotation sensor and the lock, and a signal from the information processor. The information processing unit does not input a genuine unlocking signal from the lock unit, but receives a predetermined amount of signal from a rotation sensor, the alarm generation unit An anti-theft device for a bicycle, characterized in that the device is operated. 2. The anti-theft device for a bicycle according to claim 1, wherein the information processing unit is provided with a delay unit for operating the alarm generation unit with a predetermined delay. 3. The lock unit according to claim 1, wherein the lock unit includes a removable key and a code determination unit that determines whether the key is authentic based on an electronic code match. The anti-theft device for a bicycle according to any one of the above.