JP4627991B2 - Cylinder lock protector - Google Patents

Description

  The present invention relates to a cylinder lock protection device for preventing destruction of a cylinder lock mounted on a motorcycle or the like.

  Conventionally, in order to prevent a cylinder lock such as a two-wheeled vehicle from being destroyed by insertion into a key hole such as a scissor or a driver by a third party intended for theft or mischief, for example, a cylinder as disclosed in Patent Document 1 Lock protection devices have been proposed. Such a protective device includes a shutter that moves between a locked position (closed state) and an unlocked position (open state) on the upper surface of the head of the cylinder lock, and opens and closes a key hole on the upper surface of the rotor, and locks the shutter. A magnet lock that closes and locks the key hole by being held in position and a magnet key that unlocks the magnet lock by the magnetism of the magnet are provided.

However, in the cylinder lock protection device, since the opening / closing operation of the shutter had to be performed by a magnetic key, the applicant of the present application has remotely operated the shutter as shown in Patent Document 2 to improve convenience. A protection device for cylinder locks that can be opened and closed is proposed. The protection device disclosed in this document includes a motor for driving a shutter, and can drive the motor by operating a remote controller carried by the driver, and can open and close the shutter by remote operation. .
JP-A-11-44132 JP 2002-322837 A

  However, in the conventional cylinder lock protection device, since the shutter can be remotely operated by the remote controller, the operability can be improved, but it is necessary to carry the remote controller separately from the ignition key. In addition, when parking a motorcycle or the like, it is necessary to perform a remote operation to close the shutter with a remote controller, so the shutter may be forgotten to close.

  Further, as another means for preventing theft of a vehicle such as a two-wheeled vehicle, an immobilizer that transmits a unique ID code from a transmission means and permits engine start only when the received ID code is a predetermined regular one. As a result, the present applicant has studied to improve the operability of the protection device for the cylinder lock using an immobilizer installed in such a vehicle.

  The present invention has been made in view of such circumstances, and by using an immobilizer mounted on a vehicle, it is possible to improve the operability by eliminating the need for a remote control and to reliably prevent forgetting to close the shutter. An object of the present invention is to provide a protection device for a cylinder lock that can be used.

According to the first aspect of the present invention, there is provided a shutter that opens and closes a key hole of a rotor disposed in a cylinder body, driving means that drives the shutter to open and close the key hole, and a key hole of the rotor Formed in the grip portion of the ignition key that is inserted into the transmission means, a transmission means that can be carried by the driver and capable of transmitting a unique ID code, and a predetermined authentication by receiving the ID code from the transmission means And a cylinder lock protection device including an immobilizer for permitting engine start when the ID code is authenticated as being authorized in advance. The shutter using the immobilizer by which enables opening and closing, the then controlling the driving means and receiving the ID code of the normal shutter from the immobilizer said transmitting means open While maintaining the state, and maintains the shutter reception is eliminated and by controlling the drive means of the ID code from the transmission means by disconnecting the ignition key from the key hole in the closed state.

  According to a second aspect of the present invention, there is provided the cylinder lock protecting apparatus according to the first aspect, further comprising manual operation means for moving the shutter by manual operation to open and close the key hole.

  According to a third aspect of the present invention, in the cylinder lock protecting device according to the first or second aspect, the illuminating means for illuminating the key hole is provided, and the antenna of the immobilizer is formed integrally with the illuminating means. It is characterized by that.

  According to a fourth aspect of the present invention, in the cylinder lock protection device according to any one of the first to third aspects, when the vehicle main switch is operated to the off position, the transmission means and the immobilizer The communication is started and the communication is stopped when the main switch is operated to the ON position.

  According to a fifth aspect of the present invention, in the cylinder lock protection device according to any one of the first to third aspects, when the main switch of the vehicle is operated to the off position, the transmission means and the immobilizer The communication is started and the communication is stopped after a predetermined time.

  According to the first aspect of the present invention, when the immobilizer receives a regular ID code, the driving unit is controlled to maintain the shutter in an open state, and when the ID code is not received, the driving unit is controlled to control the shutter. Since it is maintained in the closed state, by using an immobilizer equipped on the vehicle, it is possible to improve the operability by eliminating the need for a remote controller and to reliably prevent forgetting to close the shutter.

  According to the second aspect of the present invention, the manual operation means that can open and close the key hole by moving the shutter manually is provided, so that when the driving means malfunctions, the shutter is operated to open and close the key hole. be able to.

  According to the invention of claim 3, since the illumination means for illuminating the key hole is provided and the antenna of the immobilizer is formed integrally with the illumination means, the entire apparatus is reduced in size when the antenna and the illumination means are provided. Can be

  According to the invention of claim 4, since communication between the transmitting means and the immobilizer is started when the main switch is operated to the off position, and the communication is stopped when the main switch is operated to the on position, it is wasteful. Communication can be avoided.

  According to the fifth aspect of the present invention, when the main switch is operated to the off position, communication between the transmission means and the immobilizer is started and the communication is stopped after a certain period of time. Can be suppressed.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The cylinder lock protection device according to the present embodiment is for preventing the cylinder lock provided on the two-wheeled vehicle from being broken. As shown in FIGS. 1 and 2, the cylinder lock protection device includes a case 9 and a cover 10. A shutter 8 disposed in the motor, a motor 8 as a driving means, a manual interlocking member 3 as a manual operation means, a motor interlocking member 4 operated by driving the motor 8, and a transponder TP as a transmission means. And an immobilizer having an antenna 17 and an LED 18 as illumination means.

  The shutter 2 opens and closes the key hole 7 of the rotor 6 disposed in the cylinder body 5 and is disposed in a stacked state with the manual interlocking member 3 and the motor interlocking member 4. Swinging in conjunction with either the interlocking member 3 for motor or the interlocking member 4 for motor, the open position (see FIG. 3) where the shield 2a at the tip opens the key hole 7 and the closed position where the key hole 7 is closed (see FIG. 3). (See FIG. 5). A cylindrical projecting portion 9a extending upward is formed on the bottom surface of the case 9, and the shutter 2, the manual interlocking member 3 and the motor interlocking member 4 are formed around the projecting portion 9a. It can be swung freely.

  Locking portions 2b and 2c are formed at the edge of the shutter 2, and the shutter 2 is disposed when the lock portion 24 disposed on the case 9 side comes into contact with the locking portion 2b or 2c. It is configured to be locked in the open position or the closed position. The lock portion 24 is housed in the housing wall 22 formed in the case 9 via the coil spring 23. When the manual interlocking member 3 or the motor interlocking member 4 starts to operate, the locking portion 24 is released from the engaging portion 2b or 2c. After being separated, the lock is released (see FIG. 4), and when the operation is completed, the locking portion 2b or 2b is brought into contact.

  As shown in FIG. 6, the manual interlocking member 3 is in a state in which the periphery thereof is in contact with a part of the lock portion 24, and a protrusion 3 a is formed on the back side thereof. The shutter 2 can be interlocked by fitting 3a into a long hole formed in the shutter 2. A plurality of magnets 13 are arranged at the protruding end of the protruding portion 9a while being urged by the coil springs 14, and these magnets 13 engage with holes formed on the back surface of the manual interlocking member 3. Thus, the swinging operation of the manual interlocking member 3 is restricted.

  By the way, as shown in FIG. 7, a magnet M corresponding to the magnet 13 disposed in the projecting portion 9a is disposed in the ignition key grip portion (resin molding portion) inserted through the key hole 7. When the magnet key MK is inserted into the magnet key hole 12, the magnet M and the magnet 13 repel each other and the magnet 13 descends against the urging force of the coil spring 14, and engages with the manual interlocking member 3. Is released. If the magnet key MK is rotated in a predetermined direction from this state, the manual interlocking member 3 can be swung, and the shutter 2 swings between the open position and the closed position in conjunction with the swing. It will be. Furthermore, a transponder TP capable of transmitting a vehicle-specific ID code is embedded in the grip portion of the ignition key so that the driver can carry it.

  The motor interlocking member 4 is swingable about the protruding portion 9 a along with the operation of the cam 8 b attached to the output shaft 8 a of the motor 8. It swings between an open position and a closed position. Further, the motor interlocking member 4 is always urged to the neutral position by the torsion spring 11, and when the motor 8 is driven and the output shaft 8a rotates, the motor interlocking member 4 is driven by the cam 8b. Oscillates, and a biasing force is generated by the torsion spring 11 in the direction opposite to the oscillating direction. The case 9 is provided with a micro switch (not shown) for detecting the position of the cam 8b, and the cam 8b is always controlled to stop at a predetermined position.

  Further, as shown in FIG. 8, the motor 8 is electrically connected to a control circuit 20 that constitutes an immobilizer, and is driven or stopped by a signal from the control circuit 20, via the motor interlocking member 4. The shutter 2 can be opened and closed. The control circuit 20 is electrically connected to the antenna 17 via the RF module 26 (amplifying means), and controls the EEPROM 21 storing information such as a unique ID code and the engine of the motorcycle. The ECU is also electrically connected.

  That is, the immobilizer according to the present embodiment mainly includes the antenna 17, the RF module 26, and the EEPROM 21, and when the ID code from the transponder TS is received by the antenna 17, the received ID code and the EEPROM 21 are stored in advance. The control circuit 20 performs comparison authentication with a regular one, and transmits a signal permitting engine start only to the ECU when it is determined that the two match as a result of the authentication.

  Here, the antenna 17 is formed of a coil-shaped member that can receive the ID code transmitted from the transponder TP, and is formed on the surface side of the substrate 19 as shown in FIG. Further, as shown in FIG. 10, the LED 18 and the above-described RF module 26 are arranged on the back surface of the substrate 19 to illuminate the key hole 7 and facilitate the insertion of the ignition key even in the dark.

  As shown in FIG. 1, the substrate 19 on which the antenna 17, the LED 18, and the like are formed as described above is housed and assembled in the key insertion portion 16 disposed in the upper portion of the hole 15 in the cover 10. Therefore, since the antenna 17 of the immobilizer is formed integrally with the LED 18 as the illumination means, the entire cylinder lock protection device 1 can be miniaturized when the antenna 17 and the LED 18 are provided.

  On the other hand, the control circuit 20 operates as described above and functions as a control unit for the immobilizer, and also functions as a unit for controlling the driving of the motor 8. That is, when the control circuit 20 authenticates that the antenna 17 has received the regular ID code, the control circuit 20 controls the motor 8 to maintain the shutter 2 in the open state, and controls the motor 8 when the ID code is no longer received. Thus, the shutter 2 is configured to be kept closed.

  With this configuration, when the driver drives the motorcycle, if the grip portion of the ignition key is brought close to the key insertion portion 16, the antenna 17 receives the ID code from the transponder TP, and the shutter 2 in the closed state is automatically opened. When the vehicle is parked and stopped, if the ignition key is removed from the key hole 7, the antenna 17 will not receive the ID code from the transponder TP, and the shutter 2 in the open state will automatically be opened. It can be in a closed state. Therefore, by using the immobilizer equipped on the two-wheeled vehicle, it is possible to improve the operability by eliminating the need for a remote controller, and to reliably prevent forgetting to close the shutter.

Next, control of the shutter 2 in the cylinder lock protection device 1 having the above-described configuration will be described.
First, when the main switch is off (that is, when the vehicle is parked or stopped), as shown in FIG. 11, it is determined whether or not there is wireless communication (reception of an ID code) from the transponder TP ( S1) If it is determined that there is communication, the process proceeds to S2, and authentication is performed as to whether or not the received ID code is a predetermined regular one.

  If it is determined in S1 or S2 that there is no communication or the received ID code is not authentic, the process proceeds to S9 and the communication response is suspended for a predetermined time. Thereafter, in S10, it is determined whether or not the time during which the main switch is off has continued for a certain period of time, and if so, the wireless response is stopped to suppress power consumption (S11). Then, when it proceeds to S12 and it is determined that there is an operation of the main switch, the process returns to S1 and the presence / absence determination of the wireless response is performed again. Even when it is determined in S10 that the time for which the main switch is off is within a certain time, the process returns to S1 and the presence / absence determination of the wireless response is performed again.

  On the other hand, when it is authenticated that the ID code received in S2 is a predetermined regular one, the motor 8 is driven to rotate to move the shutter 2 from the closed state to the open state (S3). Thereafter, when it is detected that a limit switch (microsensor) (not shown) has been turned on from OFF in the process of rotational driving of the motor 8, it can be recognized that the shutter 2 has moved to a predetermined open position. The rotational drive of 8 is stopped.

  Until the limit switch (microsensor) is turned on, the LED 18 is turned on in S4. When it is determined that the lighting time has elapsed (S5), the LED 18 is turned off (S6). That is, since the LED 18 is lit and continues to illuminate the key hole 7 after the shutter 2 starts to move from the closed state until the predetermined time elapses, the driver inserts the ignition key into the key hole 7 even in the dark. Can be made easy.

  After the motor 8 stops, it is determined whether or not the main switch is on (S7). If it is determined that the main switch is on, the process proceeds to S8 and wireless communication (ID code reception) is stopped. If it is determined in S7 that the main switch is OFF, the process proceeds to S13 to determine whether there is a wireless communication response. If it is determined in S13 that there is no wireless communication response, the process proceeds to S14 to move the shutter 2 from the open state to the closed state (specifically, as in the case where the main switch shown below is on), If it is determined that there is a wireless communication response, the process proceeds to S15 to pause the wireless response for a predetermined time, and then returns to S7 to determine whether the main switch is on again.

Next, control when the main switch is on (that is, while the engine is being driven) will be described based on the flowchart shown in FIG.
First, in S16, it is determined whether or not the main switch is OFF. If it is determined that the main switch is not OFF (the engine is driven), wireless communication (ID code reception) is stopped (S21). At the same time, if it is determined to be off, the process proceeds to S17 to determine whether or not there is a wireless communication response. If it is determined that there is no wireless communication response, the motor 8 is rotated to move the shutter 2 from the open state to the closed state (S18). On the other hand, if it is determined that there is a communication response, After proceeding to S22 and suspending the wireless response for a predetermined time, the process returns to S17 to determine again whether or not there is communication.

  However, when it is detected that the limit switch (micro sensor) is turned on in the process of rotating the motor 8 to move the shutter 2 from the open state to the closed state (S19), the shutter 2 is in a predetermined closed state. Since it can be recognized that it has moved to the position, the rotational drive of the motor 8 is stopped (S20). The series of control is completed as described above. With this control, when the driver drives the motorcycle, the ID code from the transponder TP can be transmitted to the antenna 17 by holding the ignition key grip portion close to the key insertion portion 16. When the vehicle is parked, the ID key from the transponder TP can be received by the antenna 17 by removing the ignition key from the key hole 7 when parked. The shutter 2 in the open state can be automatically closed.

  According to the above embodiment, since the manual interlocking member 3 that can open and close the key hole 7 by moving the shutter 2 by manual operation and the magnet key MK that operates the manual interlocking member 3 are provided, there is a problem with the motor 8 (driving means). Even when it occurs, the key hole 7 can be opened and closed by operating the shutter 2. Further, since the control of the motor 8 is performed by the control circuit 20 which is a component of the immobilizer, the entire apparatus can be reduced in size and simplified as compared with the case where the control circuit is provided separately.

  Further, when the main switch is operated to the off position, wireless communication between the transponder TP (transmitting means) and the immobilizer is started, and when the main switch is operated to the on position, the wireless communication is stopped. Communication can be avoided. Still further, when the main switch is operated to the off position, the wireless communication between the transponder TP (transmitting means) and the immobilizer is started and the communication is stopped after a certain period of time. Can be suppressed.

  Although the present embodiment has been described above, the present invention is not limited to this. For example, instead of the motor, other driving means that can open and close the shutter may be used, or the shutter 2 may be moved exclusively by the driving means. It is good also as a thing (namely, what does not comprise a manual operation means). Moreover, it is good also as another illuminating means which can illuminate a keyhole instead of LED18, or it is good also as what does not comprise the said illuminating means. Furthermore, in this embodiment, the present invention is applied to a cylinder lock protection device that can protect the keyhole of a two-wheeled vehicle, but it can also be applied to a cylinder lock protection device in other vehicles such as ATVs.

A shutter that can be opened and closed using an immobilizer, that is, when the immobilizer receives a regular ID code from the transmitting means , the driving means is controlled to keep the shutter open, and the ignition key is removed from the key hole. As a result, if the ID code is no longer received from the transmitting means , the driving means is controlled and the shutter is maintained in the closed state, so that the appearance shape and the shape of each component can be applied to various things.

FIG. 2 is a schematic cross-sectional view showing a cylinder lock protection device according to an embodiment of the present invention (a cross-sectional view taken along line II in FIG. 2). Top view showing the cylinder lock protection device Schematic diagram showing the positional relationship of the shutter with respect to the case in the cylinder lock protection device (the shutter is locked in the open state) Schematic diagram showing the positional relationship of the shutter with respect to the case in the cylinder lock protection device (the shutter is unlocked with the shutter open) Schematic diagram showing the positional relationship of the shutter with respect to the case in the cylinder lock protection device (the shutter is locked in the closed state) The schematic diagram which shows the positional relationship of the manual interlocking member with respect to the case in the protection apparatus of the cylinder lock Cross-sectional schematic diagram showing a state in which the locking of the manual interlocking member is released by the magnet key in the cylinder lock protection device The block diagram which shows the immobilizer and each component connected with this immobilizer in the protection apparatus of the cylinder lock Top view showing the substrate in the cylinder lock protection device Bottom view showing the substrate in the cylinder lock protection device Flowchart showing shutter opening operation in the cylinder lock protection device Flowchart showing the closing operation of the shutter in the cylinder lock protection device

Explanation of symbols

1 Cylinder lock protection device 2 Shutter 3 Manual interlocking member (manual operation means)
4 Interlocking member for motor 5 Cylinder body 6 Rotor 7 Key hole 8 Motor (drive means)
9 Case 10 Cover 11 Torsion spring 12 Magnet key hole 13 Magnet 14 Coil spring 15 Hole 16 Key insertion part 17 Antenna 18 LED (illumination means)
19 Substrate 20 Control circuit 21 EEPROM
22 Housing Wall 23 Coil Spring 24 Locking Section 25 Control Unit 26 RF Module TP Transponder (Transmission Unit)

Claims (5)

A shutter that opens and closes the key hole of the rotor disposed in the cylinder body,
Drive means for driving the shutter to open and close the keyhole;
A transmission means that is formed in a grip portion of an ignition key that is inserted through the key hole of the rotor, and that is capable of transmitting a unique ID code by allowing the driver to carry it,
An immobilizer for receiving an ID code from the transmitting means and performing a predetermined authentication, and allowing the engine to start when the ID code is authenticated as a predetermined regular one;
A cylinder lock protection device comprising:
Since the immobilizer can be used to open and close the shutter, when the immobilizer receives a regular ID code from the transmitting means, the driving means is controlled to maintain the shutter in an open state, and the ignition A cylinder lock protection device that controls the driving means to keep the shutter closed when the ID code is not received from the transmitting means by removing the key from the key hole .   2. The cylinder lock protection device according to claim 1, further comprising manual operation means for moving the shutter manually to open and close the key hole.   3. The protection device for a cylinder lock according to claim 1, further comprising an illuminating means for illuminating the key hole, wherein an antenna of the immobilizer is formed integrally with the illuminating means.   When the main switch of the vehicle is operated to the off position, the communication between the transmitting means and the immobilizer is started, and the communication is stopped when the main switch is operated to the on position. The cylinder lock protection device according to any one of claims 1 to 3.   The communication between the transmission means and the immobilizer is started when the main switch of the vehicle is operated to the off position, and the communication is stopped after a predetermined time has elapsed. The cylinder lock protective device according to any one of the above.

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