JP2000280944A - Lock with anti-theft function for two-wheeled vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a lock with anti-theft function for two-wheeled vehicle of a low cost which is composed to give an alarm when the vehicle is moved as being locked. SOLUTION: This lock for two-wheeled vehicle is installed to a two-wheeled vehicle, and it can be converted to a lock position to lock the two-wheeled vehicle to a lock member by the operation of a key, and to an unlock position not to lock to the vehicle, and a key switch means 28 which detects the fixing and the removing of the key, and is made in the switch-on when the key is removed and not installed; a vibration detecting means 29 to detect the vibration of the two-wheeled vehicle when the key switch means 28 is in the switch-on; and an alarming means 33 to generate the alarm depending on the detecting signal of the vibration from the vibration detecting means 29; are provided to this lock 13 with anti-theft function for two-wheeled vehicle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock suitable for use in a motorcycle such as a bicycle or a motorcycle, and more particularly to a lock for a motorcycle having an anti-theft function which is designed to prevent theft by an alarm.

[0002]

2. Description of the Related Art Generally, motorcycles such as bicycles and motorcycles are used as simple vehicles for commuting, going to school, shopping, and the like. FIG. 5 is a side view of the bicycle. A front wheel 44 is pivotally supported at the front end of a frame 42 of the bicycle 41 via a front fork 43, and a rear wheel 45 is pivotally supported at a rear end of the frame 42. The rotation of 47 is transmitted to the rear wheel 45 via a chain (not shown). A handle 48 is rotatably supported at a front portion of the frame 42, and a saddle 50 for an occupant to be seated on is attached to a substantially central portion of the frame 42 via a seat post 49. A front basket 51 is provided in front of the handle 48 of the frame 42.
A rear fork 52 is fixed to a portion of the frame 42 below the saddle 50, and the rear wheel 4 is attached to the rear fork 52.
A lock 53 for locking the lock 5 is attached.

[0003]

By the way, in the bicycle 41 as described above, even if the rear wheel 45 is locked by the lock 53, the front wheel 44 is freely rotatable. The bicycle 41 can be moved. Therefore, it is relatively easy to stolen or carry out the bicycle for mischief. Since motorcycles such as bicycles and motorcycles are cheaper than automobiles, they do not have a large and expensive prevention function, and the damage from theft and mischief tends to increase.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a motorcycle anti-theft lock having a structure in which a warning is issued when the vehicle is moved in a locked state, thereby solving the above-mentioned problems. It is.

[0005]

A lock with a theft prevention function for a motorcycle according to the present invention is mounted on a motorcycle, and a lock member locks a wheel of the motorcycle by operating a key, and locks a wheel of the motorcycle. A key switch means for detecting the insertion / removal of the key and switching on when the key is pulled out and not inserted, and the key switch; When the means is switched on, it is provided with vibration detecting means for detecting vibration of the motorcycle, and alarm means for generating an alarm based on a vibration detection signal from the vibration detecting means. It is.

In the motorcycle with the anti-theft function according to the present invention, when the key is pulled out and not inserted while the lock member is switched to the lock position and the wheels of the motorcycle are locked, the key switch means is provided. Switch on,
When the motorcycle is dragged and vibration is generated, the vibration detecting means detects the vibration, and the warning means issues an alarm based on the vibration detection signal from the vibration detecting means.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a motorcycle equipped with an anti-theft function according to the present invention. FIG. 1 is a side view of a bicycle to which a motorcycle anti-theft lock according to the present invention is applied. A front wheel 5 is pivotally supported at the front end of the frame 2 of the bicycle 1 via a front fork 3, and a rear wheel 6 is pivotally supported at the rear end of the frame 2. The rotation of the pedal 7 is controlled via a chain (not shown). To the rear wheel 6. A handle 8 is rotatably supported at a front portion of the frame 2, and a saddle 10 for an occupant to be seated through a seat post 9 is attached to a substantially central portion of the frame 2. A front car 11 is attached to the front of the handle 8 of the frame 2, and the upper end of a rear fork 12 is fixed to a portion below the saddle 10 of the frame 2, and the lower end of the rear fork 12 is supported by the shaft of the rear wheel 6. Have been. The rear fork 12 is provided with an anti-theft lock 13 which is a motorcycle anti-theft lock for locking the rear wheel 6. The lock 13 with an anti-theft function is provided with a key hole 18 for unlocking, ie, unlocking, a key hole 18 described later.
a is detachably inserted into a. Further, a stand 15 is supported on the shaft of the rear wheel 6 such that the stand 15 can be switched to a state of standing on the ground or a state of retreating from the ground. The present invention locks the rear wheel 6 of the bicycle 1 with the anti-theft lock 13 and removes the key 14 to drag the bicycle 1 locked by the anti-theft lock 13 for theft or mischief. An alarm sounds.

FIG. 2 is a perspective view showing the anti-theft lock attached to the bicycle. The anti-theft lock 13 is fixed to the rear fork 12, and includes an annular ring-shaped lock portion 17 that can be partially opened and closed, and a body portion 18 that allows the key 14 to be inserted and removed so as to sound an alarm. It is configured. An operation pin 21 is provided upright on an operation rod 20 which is a lock member forming a part of a ring of the lock portion 17, and the operation pin 21 is movable in a long groove 17 a provided in the lock portion 17. ing.

The rear wheel 6 includes a tire 22 and a tire 2
A rim 23 having an annular ring shape for fitting
It is composed of a boss (not shown) fitted on the shaft of the rear wheel 6, and a spoke 24 connecting the rim 23 and the boss.

When the operating rod 20 of the lock portion 17 advances to form an annular ring having no missing portion over the entire circumference, that is, in the locked state, the operating rod 20 passes between the spokes 24. Therefore, the rear wheel 6 is locked unrotatably. On the other hand, when the key 14 is inserted into the key hole 18a of the main body 18 and rotated, the operating pin 21 is retracted by the elastic force of a spring (not shown) until it reaches the upper end of the long groove 17a. Is retracted from between the spokes 24, that is, a part of the annular ring is opened, and the rear wheel 6 is in a rotatable state.

FIG. 3 is a block diagram of a lock with an anti-theft function. A key switch section 28 as key switch means is provided near the key hole 18a. Key switch part 2
The switch 8 is turned on when the key 14 is pulled out from the key hole 18a, and is turned off when the key 14 is inserted into the key hole 18a. When the key switch unit 28 is turned on, the vibration pickup unit 29 serving as a vibration detection unit can detect abnormal vibration. When the vibration pickup unit 29 detects abnormal vibration, the detected abnormal vibration is amplified by the amplifier unit 30,
The rectification / integration unit 31 converts the voltage into a DC voltage, which is input to a buzzer drive unit 32, and the buzzer drive unit 32 sounds a buzzer 33 as alarm means. And
If the abnormal vibration continues for a long time, the buzzer 3
Integrator 3 which is a vibration continuation detecting means for rectifying the vibration waveform output and storing the rectified vibration waveform output in a capacitor (not shown) so as to make long sound.
1a is provided. When the key switch 28 is switched on, the vibration pickup 2
9, current flows through the amplifier section 30, the rectification / integration section 31, and the buzzer drive section 32.

Next, the operation of the anti-theft lock will be described. As shown in FIG.
When the bicycle is locked, the lock with bicycle anti-theft function 1
When the key 14 is pulled out from the key hole 18a of the main body 18 of 3, the key switch unit 28 is turned on, and the vibration pickup unit 29 can detect abnormal vibration.
In this state, the bicycle 1 is locked by the operating rod 20 by a person other than the owner of the key 14 for theft or mischief.
Is dragged, abnormal vibration occurs, and the generated abnormal vibration is detected by the vibration pickup unit 29. Abnormal vibration detected by the vibration pickup unit 29 is amplified by the amplifier unit 30, converted into a DC voltage by the rectification / integration unit 31, input to the buzzer drive unit 32, and the buzzer drive unit 32 sounds the buzzer 33.

[0013] Therefore, the buzzer sound, which is an alarm, draws the attention of the surrounding people, so that the stolen person or the like hesitates to stop the theft or mischief, and the theft or mischief can be reliably prevented. Then, when the abnormal vibration continues for a long time, the buzzer 33 continuously sounds for a predetermined time via the buzzer drive unit 32 by the output from the integration unit 31a of the rectification / integration unit 31. As described above, the buzzer 33 continuously sounds for a predetermined time, so that the effect of attracting the attention of the surrounding people and preventing theft and mischief is further enhanced.

In the above-described embodiment, the anti-theft lock is applied to a bicycle. However, the present invention is not limited to this and may be applied to other motorcycles such as a motorcycle. Although the anti-theft lock is attached to the rear wheel of the bicycle, it is needless to say that the anti-theft lock may be attached to the front wheel of the bicycle. Although the annular ring is used as the lock member of the lock with the anti-theft function, the invention is not limited thereto, and a bar member that moves linearly may be used. Further, the buzzer 33 is used as the alarm means, but the invention is not limited to this, and other alarm means such as an electronic sound may be used.

[0015]

According to the anti-theft lock for a motorcycle according to the present invention, when the key is pulled out and not inserted while the wheel is locked by switching the lock member to the lock position, the key switch is provided. When the means is switched on and the motorcycle is dragged to generate vibration, the vibration detecting means detects the vibration, and based on a detection signal from the vibration detecting means,
Since the alarm means issues an alarm, and this alarm draws the attention of the surrounding people, the theft or the like hesitates to stop the theft or mischief, and the theft or mischief can be reliably prevented.

Further, the lock with the anti-theft function for a motorcycle has only an alarm generating function added to a normal lock, so that the cost is slightly increased, and an inexpensive and simple anti-theft device can be provided. Further, when the vibration continuation detecting means is provided, when the vibration continuation detecting means detects that the vibration continues for a predetermined time, the alarm means continuously operates for a predetermined time based on the detection signal from the vibration continuation detecting means. As a result, an alarm is issued, so that the attention of the surrounding people can be further attracted, and theft and mischief can be prevented more reliably.

[Brief description of the drawings]

FIG. 1 is a side view of a bicycle to which a motorcycle anti-theft lock according to the present invention is applied.

FIG. 2 is a perspective view showing the anti-theft lock according to the present invention.

FIG. 3 is a block diagram of a lock with an anti-theft function according to the present invention.

FIG. 4 is a perspective view showing a locked state of the anti-theft lock according to the present invention.

FIG. 5 is a side view of a bicycle to which a conventional lock is attached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bicycle 2 Frame 5 Front wheel 6 Rear wheel 12 Rear fork 13 Lock with anti-theft function (Lock with anti-theft function for motorcycle) 14 Key 17 Lock section 18 Main body section 18a Key hole 20 Actuating rod (lock member) 28 Key switch section ( Key switch unit) 29 Vibration pickup unit (vibration detection unit) 30 Amplifier unit 31 Rectification / integration unit 31a Integration unit (vibration continuation detection unit) 32 Buzzer drive unit 33 Buzzer (alarm unit)

Claims (2)

[Claims] 1. A two-wheeled vehicle lock mounted on a two-wheeled vehicle and capable of switching a lock member between a locked position for locking wheels of the two-wheeled vehicle by a key operation and an unlocked position for not locking wheels of the two-wheeled vehicle. Key switch means that is turned on when the key is pulled out and not inserted, and vibration that detects vibration of the motorcycle when the key switch means is turned on. An anti-theft lock for a motorcycle, comprising: a detection unit; and an alarm unit that generates an alarm based on a vibration detection signal from the vibration detection unit. 2. A vibration continuation detecting means for detecting that a vibration detection signal from the vibration detecting means continues for a predetermined time,
2. The method according to claim 1, wherein, when the vibration continuation detecting means detects that the vibration continues for a predetermined time, the alarm means issues an alarm continuously for a predetermined time based on a detection signal from the vibration continuation detecting means. The described anti-theft lock for motorcycles.