JPH08319750A - Bicycle lock having buzzer - Google Patents

Abstract

PURPOSE: To simplify manufacture and installation, protect an electric part to be enclosed in a case, strengthen a lock, and make it hard to be unjustly unlocked by integrally providing a locking mechanism and a theft preventive buzzer in the case having high waterproofness. CONSTITUTION: A case main body la and a case cover lb are fitted together in mutual peripheral edge parts, and a hollow case l is formed. A locking mechanism 2 composed of a cylinder lock mechanism 3, a bolt member 6, a push spring 7 and a wire lever 9 having a plug 9' is provide on one end, and a buzzer mechanism B composed of a battery 12, a buzzer driving circuit, a vibration sensor 19 or the like is enclosed on the other end. An actuating pin 4 of the cylinder lock mechanism and a contact piece (a switch) 14 of an actuation standby circuit are engaged with each other, and they can be switched only when a buzzer mechanism is wanted to be actuated at locking time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention, in addition to a locking mechanism,
Regarding a bicycle lock with a buzzer equipped with an alarm (buzzer) that operates when a bicycle is illegally taken away,
The feature is that the buzzer is transmitted by detecting the vibration of the bicycle or the change of the inclination while locking.

[0002]

2. Description of the Related Art A conventional bicycle lock with a buzzer is, for example, as disclosed in Japanese Utility Model Laid-Open No. 4-107187, when a bar bar is projected into a locked position in a lock box of a bar lock type bicycle lock. Connect the switch that closes the circuit and the switch that keeps OFF when locking and insert the key to the predetermined position to close the circuit in series with the operation circuit of the buzzer to lock the bar by unauthorized means during locking. There is a device that sends a buzzer when it is retracted and unlocked.

An example of a bicycle equipped with an anti-theft alarm circuit and a buzzer to detect movement of the bicycle while the bicycle is parked and send a buzzer is disclosed in Japanese Utility Model Laid-Open No. 6-18182. As an alarm buzzer for a motorcycle having the same purpose, there is Japanese Utility Model Laid-Open No. 5-13889.
Further, as a wire lock for a bicycle, which uses a cylinder lock mechanism as a locking mechanism, there is a lock as disclosed in, for example, Japanese Patent Application No. 6-47759 in the prior application of the present applicant.

[0004]

The conventional bicycle lock with a buzzer described above has a drawback that it is apt to be illegally unlocked by using a wire or the like because of its simple locking mechanism. In addition, the bar lock for locking the bicycle is also provided. Rainwater invades the inside of the body due to the structure such that the lock box is slidably penetrated into the lock box, and the lock box with the bottom open is only fitted to the dish-shaped mounting support member. There is a technical difficulty that it is difficult to maintain waterproofness of electric parts such as a built-in battery, an alarm circuit, and a buzzer, and it is difficult to put it into practical use.

In addition, if the buzzer is to be attached separately from the lock because of the waterproofness of the electric parts such as the buzzer, it is expensive, and the attachment to the bicycle requires double labor. On the other hand, bicycles are more likely to be stolen because they are easy to get on and off, and are often taken away while the bicycle is parked or the bicycle is unlocked by moving the bicycle to another place.

[0006] Therefore, as a means for preventing the theft of a bicycle while parked, a lock that is difficult to unlock is provided first, and an illegal unlocking operation or a carry-out operation of the bicycle that is parked in a highly waterproof case. It is possible to prevent theft even more by providing a buzzer that transmits by etc., and
It has been a problem to be solved in this type of buzzer-equipped bicycle lock that simplification of manufacture and installation is required.

[0007]

SUMMARY OF THE INVENTION Therefore, according to the present invention, there is provided a case including a case body and a case lid, which form a hollow body which is rich in waterproof property and is almost flat, by fitting the peripheral portions thereof to each other and integrally connecting them in the front and rear. Inside, a cylinder lock mechanism, a barbing member that moves to an unlocked position following the rotation of an operating pin provided at the inner end of the cylinder lock mechanism, and the base end is fixed in the case and is provided at the tip. A wire rod that is inserted into the lock hole and locked in the unlocking member, and a squeeze member that maintains the unlocked state by engaging with the unlocking member instead of the wire rod that escapes to the outside of the lock hole when unlocking. In addition to a locking mechanism consisting of, a battery and a buzzer drive circuit, a vibration sensor connected to the buzzer drive circuit for keeping the circuit off at all times in the case, and a buzzer mechanism consisting of a buzzer, A buzzer-equipped bicycle lock equipped with a buzzer drive circuit, which is provided with an operation standby circuit for switching the drive circuit to an operation standby state by following the rotation of the operation pin of the cylinder lock mechanism in the direction opposite to the rotation direction of the unlocking direction. Is provided.

[0008]

The bicycle lock of the present invention includes a case main body and a case lid, which form a hollow body having a waterproof property and a substantially flat shape, which are fitted together at their peripheral portions and are integrally connected to the front and rear to form a cylinder. A locking mechanism consisting of a locking mechanism, a battery,
Since a buzzer mechanism including a buzzer drive circuit and a buzzer is built in, it is possible to provide a bicycle lock that is highly waterproof and is difficult to accidentally open. Further, the alarm device and the locking mechanism are integrated with each other, which facilitates manufacturing and mounting.

The bicycle lock of the present invention comprises a buzzer drive circuit,
The power switch that closes the circuit by abutting the lock member in the locked position and opens the circuit in the unlocked state automatically cuts off the power to the buzzer drive circuit when the alarm device is not used. It is possible to automatically switch to the operable state only in the locked state.

The bicycle lock of the present invention includes a buzzer drive circuit,
By connecting the LED to which the voltage detector is connected, the buzzer oscillation standby state can be shown outside the device and the user can be notified of the voltage drop of the battery.

In the bicycle lock of the present invention, the switch for opening and closing the operation standby circuit in response to the rotation of the operation pin is provided with an insulator for insulating static electricity at a contact portion with the operation pin, and the power switch is provided. In addition, by providing an insulator that also insulates static electricity at the contact portion with the above-mentioned pulling member, it is possible to prevent high-voltage electrostatic current from flowing into the buzzer drive circuit and prevent damage to the circuit. it can.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. As shown in the drawings, a case body 1 having a locking mechanism 2 and a buzzer mechanism B built therein is fitted to each other at their peripheral portions and integrally joined at the front and rear to form a hollow body having a high waterproofness and a nearly flat shape. 1a and case lid 1b.

As shown in FIG. 1, the locking mechanism 2 is rotatably mounted in the left end surface of the case 1 so as not to come off.
A tumbler piece 3'protruding on the peripheral surface is engaged with a locking groove 1'provided on the inner side surface of the case 1, and an operating pin 4 protruding on the inner end is rotated rightward or leftward by a rotation operation of a key not shown. A conventionally known cylinder lock mechanism 3 to be rotated, and an operating pin 4 is fitted into a window-shaped connecting hole 5 provided on a side surface, and the inner end surface of the cylinder lock mechanism 3 is driven by the rotation of the operating pin 4. 1 having a U-shaped cross-section that slides in the up-down direction of FIG. 1, along with a coil shape that constantly presses the canning member 6 from one side (upper side of FIG. 1) in the locking direction (downward direction). Of the push spring 7 and the lock hole 8 (see FIG. 2) provided laterally on the lower left side of the front side of the case 1 to insert the recess 9'of the tip end into the concave locking member provided on the other side edge of the punching member 6. The rim 6'is locked so that it cannot be pulled out, while the fixed end 9 "is not pulled out on the lower right side of the front of the case 1. A rectangular tube-shaped extruding member 1 that pushes the barbs 9 ′ out of the lock hole 8 by being urged by the embedded wire rod 9 and the extruding spring 10 equipped at the inner end of the lock hole 8.
1 and 1.

The locking mechanism 2 operates in the same manner as a wire lock type bicycle lock having a conventionally known cylinder lock mechanism. That is, in the locked state shown in FIGS. 1 and 2, when a predetermined key (not shown) inserted from the outer end surface of the cylinder lock mechanism 3 is rotated to the left, the operating pin 4 is pushed up and lifted up, and the boring member 6 is pushed. Rises against the push spring 7, the grab bar 9'released from the locking of the locking rim 6'is squeezed out of the device, and the squeeze member 11 advances in the lock hole 8 for replacement, and the piercing member. It becomes an unlocked state in which the downward movement of 6 is blocked, and the key that has been unlocked can be carried by returning it to the original position. It should be noted that the unlocked state again 9 '
When the locking member 6 is inserted, the squeeze-out member 11 is retracted, and the locking edge 6 ′ of the barbing member 6 is slightly lowered to replace it, and
Lock the wire rod 9's grip 9'as shown in.

As shown in FIG. 1, the buzzer mechanism B includes a board 12 fitted in the central portion of the case 1 and two sets of contact pieces 13 (power switch) extending from the board 12 into the punching member 6. , 14 (switches), two batteries 16 fitted in a battery case 15 rotatably held on the right side of the case 1, and a fulcrum shaft 17 rotatably holding the battery case 15 from one side. The vibration sensor 19 fitted in the case holder 18, the vibrating plate (buzzer) 20 fitted between the case holder 18 and the case lid 1b, and the substrate 12
And an LED that is exposed to the outside of the case body 1a.

FIG. 4 shows a buzzer drive circuit E in which the above-mentioned electric members are connected. One contact piece 13 of the two contact pieces is connected to the drive circuit E as a power switch of the drive circuit E, and in the locked state shown in FIG. It engages with the piece 21 and is pressed from above to energize the circuit E.

The other contact piece 14 that engages with the operating pin 4 of the cylinder lock mechanism 3 always forms an open circuit, and is temporarily pressed against the operating pin 4 as the cylinder lock mechanism 3 rotates to the right. 4 is used as a start switch for closing the operation standby circuit e of the buzzer shown in FIG. 4, and the buzzer drive circuit E is switched to the operation standby state by one contact / separation operation, and the LED lights up for this bicycle. Reveal that the alarm device of the lock is on standby.

As shown in FIG. 4, the vibration sensor 19 keeps a normally open circuit and closes the operation stand-by circuit e. The microcomputer E ′ shown in FIG. 4 is turned on, the drive circuit E of the buzzer is operated, and the buzzer (BZ) 20 is oscillated.

As described above, when the alarm device is used, when the key inserted in the cylinder lock mechanism 3 is reciprocated to the right by one predetermined angle, the operating pin 4 comes into contact with the forward stroke as shown in FIG. After the pieces 14 are brought into contact with each other and then returned to their original positions, the contact piece 14 and the operation standby circuit e are temporarily closed to electrically connect the microcomputer E ', thereby turning on the LED, and the buzzer drive circuit E is switched from the vibration sensor 19 to the vibration sensor 19. Waiting for the signal.

In this embodiment, a voltage detector 28 is connected to the LED to reduce the voltage drop of the battery 16 by L
It can be known by the decrease in the brightness of the ED. Further, a piezoelectric buzzer is used as the buzzer 20, and its transmission is intermittently performed at time intervals set in the timer circuit. Needless to say, the buzzer drive circuit E used in the embodiment includes a timer circuit for intermittently operating the buzzer 20 and an operation delay circuit for the vibration sensor 19.

Therefore, even if the contact piece 14 of the start switch for locking the bicycle and opening and closing the operation standby circuit e is closed, the inclination and vibration of the bicycle are set in the operation delay circuit of the vibration sensor 19. If it is within the time, the buzzer drive circuit does not partially conduct, so it does not hinder the parking and locking operation of the bicycle. However, when the tilt or vibration state detected by the vibration sensor 19 exceeds the set time, the buzzer 20 issues an alarm. , The transmission is continued until the door member 6 is raised to the unlocked position by the insertion of the key and the counterclockwise rotation and the contact piece 13 of the power switch is opened.

Incidentally, the key of the cylinder lock mechanism 3 is constructed so that it can be carried and detached at the returning position of the operating pin 4 shown in FIG. In normal use, with the device in standby and the alarm device not activated, it is operated counterclockwise only when unlocking.

As described above, in the bicycle lock, the power switch 13 is opened when the pull-out member 6 is raised to the unlocked position, so that unnecessary power consumption is prevented when the lock is not locked. Also, a contact piece 14 of a start switch that opens and closes the operation standby circuit e according to the rotation of the operation pin 4.
Is provided with an insulator 22 for insulating static electricity at a contact portion with the actuating pin 4, and the contact piece 14 of the power switch has an insulator 22 for insulating static electricity at a contact portion with the punching member 6. This prevents the high-voltage electrostatic current from flowing into the microcomputer E ′.

As shown in FIG. 3, the battery case 15 rotatably held by the fulcrum shaft 17 on the right side of the case 1 is obtained by rotating the knob 23 projecting to the right side of the case 1 to the right side in the figure. The two batteries 16 fitted in the case 15 can be taken out to a replaceable position.

Battery housing 2 formed in the battery case 15
4 has a flange 25 on one side according to the outer shape of the commercially available battery 16.
In order to prevent the +/− surface of the battery 15 to be housed from being mistaken.

Further, the protrusion 26 at the tip of the battery case 15 is pushed into the case body 1 until it reaches the recess 27 of the case holder 18.
And the substrate holder 2 fitted in the center of the case body 1.
It is configured so as to be connected to a terminal (not shown) that is serially provided in 9.

[0026]

As described above, according to the present invention, as the locking mechanism, the cylinder locking mechanism, the barbing member which is driven by the rotation of the operating pin of the cylinder locking mechanism, the base end of which is fixed in the case, and which is provided at the front end. Since the wire rod that is inserted into the lock hole provided in the case and locked to the locking lever is used, it can be unlocked by an illegal means compared to the conventional box-type bicycle lock. In addition to being hard to lock, the battery and buzzer drive circuit, the vibration sensor and the electrical parts such as the buzzer and switch are integrally joined together at the front and rear to ensure high waterproofness. The buzzer is equipped with a case body that forms a hollow body close to a flat body and has a case lid, so that rainwater does not enter through key holes, lock holes, etc. more than conventional products, and the buzzer is highly waterproof. For bicycles with It is possible to obtain.

Further, in the bicycle lock of the present invention, the operation standby circuit is connected to the drive circuit of the buzzer so that the operation state is made to stand by following the rotation in the direction opposite to the locking of the operation pin of the cylinder lock mechanism. Therefore, the switching operation between using the alarm device and not using the alarm device is easy. Furthermore, since the buzzer and the locking mechanism are integrated, it is easy to manufacture and install. The present invention has excellent effects as described above.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention.

FIG. 2 is an enlarged side view taken along line X-X ′ of FIG.

3 is a plan view taken along line Y-Y 'of FIG.

FIG. 4 is a circuit configuration diagram schematically showing a drive circuit of a buzzer attached to the embodiment.

[Explanation of symbols]

 1 Case 1a Case Main Body 1b Case Lid 2 Locking Mechanism 3 Cylinder Locking Mechanism 4 Actuating Pin 5 Connection Hole 6 Barbing Member 6'Locking Edge 7 Push Spring 8 Locking Hole 9 Wire Rod 9'Squeezing Spring 10 Bushing Spring B Buzzer Mechanism 12 Board 13 Contact piece (power switch) 14 Contact piece 15 Battery case 16 Battery 17 Support shaft 18 Case holder 19 Vibration sensor 21 Contact piece 22 Insulator E Buzzer drive circuit E'Microcomputer e Standby circuit 28 Voltage detector

Claims (4)

[Claims] 1. A cylinder lock mechanism and a cylinder are provided in a case, which comprises a case body and a case lid, which are fitted together at their peripheral portions and are integrally connected to each other in the front and rear to form a hollow body which is rich in waterproofness and is almost flat. The shaving member that moves to the unlocked position following the rotation of the operating pin provided at the inner end of the locking mechanism, and the base end fixed in the case, and the grab provided at the tip inserted into the lock hole With a wire rod that is locked to the door member, and a locking mechanism consisting of a barb member that maintains the unlocked state by engaging with the door member in place of the grab that escapes to the outside of the lock hole at the time of unlocking, In the above case, a battery, a buzzer drive circuit, and a vibration sensor that is connected to the buzzer drive circuit and keeps the circuit off at all times.
A buzzer mechanism including a buzzer is provided, and the buzzer drive circuit is driven to rotate in a direction opposite to the rotation of the operating pin of the cylinder lock mechanism in the unlocking direction to switch the drive circuit to an operation standby state. Bicycle lock with a buzzer equipped with a standby circuit. 2. The bicycle lock with a buzzer according to claim 1, wherein the buzzer oscillating circuit is connected to a power switch that closes the circuit by abutting the abutment member in the locked position. 3. The buzzer oscillator circuit is connected to an LED connected to a voltage detector.
Bicycle lock with buzzer. 4. The switch that opens and closes the operation standby circuit according to the rotation of the operation pin includes an insulator that insulates static electricity at a contact portion with the operation pin, and the power switch is connected to the bolting member. The bicycle lock with a buzzer according to claim 1 or 2, wherein the contact portion is also provided with an insulator for insulating static electricity.