JP2009203765A - Protection device of cylinder lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a protection device of a cylinder lock improved in shutter unlocking operation characteristics and allowing a shutter to be smoothly unlocked when the shutter positioned at a closing position is moved to an open position. <P>SOLUTION: The protection device of a cylinder lock comprises a shutter 2 closing a key hole when being positioned at the closing position and opening the key hole when being positioned at the open position and a solenoid 3 locking the shutter 2 positioned at the closing position to restrain the shutter 2 from moving to the open position, and further comprises a transponder 6 capable of transmitting an identification code, an antenna 7 capable of receiving the identification code with no contact by bringing the transponder near to the antenna, and an authenticating means for making the determination on whether the identification code is authenticated or not. Only when the received identification code is determined to be an authenticated identification code, the lock by the solenoid 3 is unlocked to allow the shutter 3 to move from the closing position to the open position. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cylinder lock protection device that can prevent the cylinder lock of a motorcycle or the like from being broken.

  Conventionally, in order to prevent a cylinder lock such as a two-wheeled vehicle from being tampered with and broken by insertion into a key hole of a scissor or a driver by a third party, for example, protection of the cylinder lock as disclosed in Patent Document 1 A device has been proposed. Such a protective device has a shutter slidable from a closed position where the key hole is closed to an open position where the key hole is open, and holds the shutter slidably between the open position and the closed position. And a magnet lock that closes and locks the key hole by holding the shutter in the closing position, and a magnet key that unlocks the magnet lock by the magnetism of the magnet.

According to the cylinder lock protection device, the key hole is closed by performing an operation of pushing a part of the shutter protruding from the housing into the housing, and can be locked with the magnetic lock at that position. In other words, an operation unit for setting the shutter to the closed position is formed, and the driver operates the operation unit to set the shutter to the closed position and cover the key hole to protect the cylinder lock. It is.
JP-A-11-44132

  However, in the conventional cylinder lock protection device, in order to operate the shutter in the closed position to the open position, it is necessary to operate the magnet key while inserting the magnet lock and unlock the magnet lock. There was a problem that the operation was troublesome. In particular, in darkness such as at night, there is a problem that the operation of inserting the magnet key through the magnet lock becomes difficult.

  The present invention has been made in view of such circumstances, and when operating the shutter in the closed position to the open position, the unlocking operability of the shutter is improved and the unlocking is performed easily and smoothly. It is an object of the present invention to provide a cylinder lock protection device.

  According to the first aspect of the present invention, the housing provided above the key hole of the cylinder lock, and movable between the closed position and the open position within the housing, the key hole is closed and opened at the closed position. In a cylinder lock protection device comprising a shutter that opens the key hole at a position and a lock means that locks the shutter at the closed position and restricts movement to the open position, the driver is portable. A transmitting means capable of transmitting an authentication code, a receiving means capable of receiving the authentication code from the transmitting means in a non-contact manner when the transmitting means is in proximity, and an authentication code received by the receiving means An authentication unit that authenticates whether or not the device is authentic, and the lock by the lock unit is released only when the authentication unit authenticates that a regular authentication code has been received. , Characterized by a movable state the shutter from the closed position to the open position.

  According to a second aspect of the present invention, in the cylinder lock protecting apparatus according to the first aspect, the transmission means is a transponder built in a grip portion of an ignition key, and the authentication code is an ID code unique to the vehicle. It is characterized by being.

  According to a third aspect of the present invention, in the cylinder lock protecting device according to the first or second aspect, the device includes a biasing unit that constantly biases the shutter to the open position, and the lock by the lock unit is released. And the urging force of the urging means moves the shutter from the closed position to the open position.

  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 of the present invention, the cylinder lock protection device is turned on by pressing the shutter locked by the locking means, and is authenticated by the authentication means. It is characterized by comprising an access switch for starting

  In the cylinder lock protection device according to any one of claims 1 to 4, the invention according to claim 5 is lit on condition that the authentication means has authenticated that the authentication code is authentic. An informing means for informing is provided.

  According to a sixth aspect of the present invention, in the cylinder lock protecting device according to any one of the first to fifth aspects, the key hole is turned on under the condition that the shutter has moved from the closed position to the open position. An illumination means for illuminating is provided.

  According to the first aspect of the present invention, after authentication by the authentication means is performed by bringing the transmission means close to the reception means, the lock by the lock means is released on condition that a regular authentication code is received, and the shutter is released. Since the shutter can be moved from the closed position to the open position, when operating the shutter at the closed position to the open position, the unlocking operability of the shutter can be improved and the lock can be released easily and smoothly. it can.

  Moreover, since the authentication by the authentication unit is performed by bringing the transmission unit close to the reception unit and the lock by the lock unit can be released, inadvertent unlocking can be avoided. In other words, in order to release the lock, it is necessary for the driver to be aware of the operation of bringing the transmission means close to the reception means, so that the lock is prevented from being inadvertently released unintentionally. It can be done.

  According to the second aspect of the present invention, the transmission means is composed of a transponder built in the grip portion of the ignition key, and the authentication code is an ID code unique to the vehicle. It is possible to share the ID code and the authentication code of the immobilizer system that transmits the ID code and permits the engine start only when the ID code is genuine.

  According to the invention of claim 3, when the lock by the lock means is released, the shutter is moved from the closed position to the open position by the biasing force by the bias means, so that the driver at the closed position is moved to the open position. Therefore, a series of operability from unlocking to keyhole opening can be further improved.

  According to the fourth aspect of the present invention, since the access switch that is turned on by pressing the shutter locked by the lock unit and starts the authentication by the authentication unit is provided, the authentication operation by the authentication unit is performed at an arbitrary timing. In addition, the shutter can have a crime prevention function for closing the key hole and an operation function for turning on the access switch.

  According to the invention of claim 5, since the notification means for lighting and informing that the authentication code is authenticated by the authentication means is provided, the driver receives the normal authentication code. It is possible to determine whether or not the process has been successfully performed.

  According to the sixth aspect of the present invention, since the lighting means for illuminating the key hole by illuminating the shutter is moved from the closed position to the open position, the vehicle is dark at night or in a garage. However, the operation of inserting the ignition key into the key hole can be facilitated.

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 provided above the key hole of the cylinder lock provided in the two-wheeled vehicle, and can protect the cylinder lock by allowing the key hole to be opened and closed from the outside. As shown in FIG. 7, the housing 1, the shutter 2, the solenoid 3 as the locking means, the access switch 4, the coil spring 5 as the urging means, the transponder 6 as the transmitting means, and the receiving means as the receiving means It is mainly composed of an antenna 7 and authentication means 8.

  The housing 1 is provided above the key hole A of the cylinder lock S and constitutes the housing of the protection device. The housing 1 is formed with a through-hole 1a that allows the key hole A to be exposed to the outside substantially at the center, and an accommodating portion 1b that accommodates the shutter 2 in a slidable manner. In the cylinder body constituting the cylinder lock S, a rotor R having a plurality of tumblers (not shown) is disposed, and a key hole A is formed so that the ignition key IK (see FIG. 6) is inserted and removed. It is configured to be able to.

  The shutter 2 is movable between a closed position and an open position within the housing 1, and closes the key hole A at the closed position (see FIGS. 8 to 10), and at the open position (FIGS. 2 to 4), the key hole. A is opened to the outside. More specifically, the shutter 2 is slidable in the housing 1, and is in a closed position at one sliding end to close the key hole A and in an open position at the other sliding end. The key hole A is configured to be opened.

  Further, the shutter 2 is provided with a convex portion 2a that protrudes upward at the upper end portion thereof, a concave portion 2b that is formed on the rear surface side and can be engaged with the plunger 3a at the closed position, and extends to the side. An arm 2c for turning on the access switch 4 is formed, and when the shutter 2 is slid by holding the convex 2a (particularly, moving from the open position to the closed position), the concave 2b becomes the plunger 3a of the solenoid 3. It is comprised so that it may become a position facing.

  The solenoid 3 as a locking means is for restricting the movement to the open position by locking the shutter 2 in the closed position, and includes a plunger 3a that can be raised and lowered (moved up and down in the figure) by energization. . That is, when the shutter 2 is in the closed position, the plunger 3a is in a projecting state, and the distal end 3aa is engaged with the recess 2b of the shutter 2 to lock and restrict the movement to the open position. By being in the immersion state, the shutter 2 is unlocked and the operation from the closed position to the open position can be permitted.

  More specifically, the plunger 3a is always urged upward by a spring or the like (not shown), and when the shutter 2 is in the open position, the plunger 3a is pushed to the back surface to be in the immersive position, and the shutter 2 is in the closed position. In this case, the shutter 2 can be locked by projecting in the recess 2b on the back surface and engaging with the inner wall surface of the recess 2b. In this state, when the solenoid 3 is energized, the plunger 3a is lowered and immersed, the engagement is released, and the shutter 2 is unlocked.

  The transponder 6 as a transmission means is portable for the driver and can transmit the authentication code wirelessly. As shown in FIG. 6, the transponder 6 is built in the grip portion of the ignition key IK and disposed on the vehicle side. It is possible to communicate with the antenna 7 (receiving means). More specifically, the transponder 6 built in the ignition key IK operates based on a radio signal transmitted from the antenna 7 and transmits a signal (an authentication code and a vehicle-specific ID code) as a response to the radio signal. To do.

  However, the transponder 6 includes an antenna for receiving a radio signal transmitted from the antenna 7 side and transmitting information generated on the transponder 6 side, a high-frequency circuit for demodulating the received radio signal, An authentication code generating IC for controlling, an EEPROM comprising a nonvolatile storage means for storing information unique to the ignition key IK (that is, vehicle specific), a capacitor, and the like are arranged, and excited by radio waves from the antenna 7 side. In this way, power is supplied. That is, it does not have a power source such as a dry battery or a battery.

  An antenna 7 as a receiving means is capable of receiving an authentication code (ID code) from the transponder 6 in a non-contact manner when the transponder 6 is brought close together with the ignition key IK. It consists of the coil which was made. That is, the authentication code (ID code) can be received by the antenna 7 by bringing the ignition key K close to the range in which radio waves can be transmitted and received between the antenna 7 and the transponder 6 (radio wave reachable range).

  However, in the present embodiment, as described above, the power is supplied to the transponder 6 by being excited by the radio wave from the antenna 7 side, so that the antenna 7 and the transponder 6 are brought close to a very close position. Thus, the antenna 7 can receive the authentication code. The antenna 7 is electrically connected to the authentication means 8 and is configured to transmit the authentication code (ID code) received by the antenna 7 to the authentication code 8.

  The authentication unit 8 is for authenticating whether or not the authentication code (ID code) received by the antenna 7 (reception unit) is a legitimate one. As shown in FIG. The solenoid 3 is electrically connected. Thus, when the authenticating means 8 authenticates that the normal authentication code has been received in a state where the shutter 2 is locked at the closed position, the plunger 3a of the solenoid 3 is immersed (lowered) and the shutter 2 On the other hand, if the normal authentication code is not authenticated by the authentication means 8, the engagement by the plunger 3a is maintained and the lock is not released.

  That is, only when it is authenticated that the authentic authentication code is received by the authentication means 8, the lock by the solenoid 3 (lock means) is released, and the shutter 2 can be moved from the closed position to the open position. . The authenticating means 8 is electrically connected to an ECU 9 for controlling the engine of the motorcycle, and when the ignition key IK is rotated while being inserted through the key hole A, the authenticating means 8 Only when it is authenticated that the authentication code is received, the engine start is permitted.

  Here, in the present embodiment, a coil spring 5 (biasing means) that constantly biases the shutter 2 in the closed position to the open position is disposed in the housing 1 and is locked by the solenoid 3 (locking means). When is released, the shutter 2 is configured to naturally move from the closed position to the open position by the urging force of the coil spring 5. That is, when the shutter 2 is slid from the open position to the closed position, as shown in FIG. 10, the coil spring 5 is pressed and compressed to obtain an urging force (an urging force toward the open position). .

  Further, an access switch 4 is provided in the housing 1 to be turned on when the shutter 2 locked by the solenoid 3 (locking means) is further pressed to start authentication by the authentication means 8. More specifically, when the shutter 2 in the closed position is further pushed in (operation on the right side in FIG. 9), the arm portion 2c extending from the shutter 2 presses the operation portion 4a of the access switch 4. It is configured to be turned on electrically, whereby authentication by the authentication means 8 is started.

  Furthermore, in the present embodiment, the housing 1 is formed with an LED 10 (notification means) that lights and notifies that the authentication means 8 authenticates that the authentication code is authentic. As a result, the driver can grasp whether or not the proper authentication code has been successfully received, and when the authentication code is received, the lock is released and the shutter 2 is released by the coil spring 5. Since it is in the open position, it can be determined whether or not the shutter 2 is in the open position even in the dark.

  In the present embodiment, as shown in FIG. 7, an LED 11 as an illuminating means for illuminating the key hole A is disposed in the housing 1, the authentication code is received, the lock is released, and the coil spring 5. When the shutter 2 is in the open position, the LED 11 is turned on, and the operation of inserting the ignition key IK into the key hole A can be facilitated. That is, the LED 11 as the illumination means lights on the condition that the shutter has moved from the closed position to the open position and illuminates the key hole A. Therefore, even when the surroundings of the vehicle are dark, such as at night or in a garage, The operation of inserting the ignition key IK into A can be facilitated.

Next, the operation of the cylinder lock protection device having the above-described configuration will be described.
First, at the time of parking, after the ignition key IK is removed from the key hole A, it is pushed and slid to the closed position while grasping the convex portion 2a of the shutter 2 at the open position. In the process of sliding from the open position to the closed position, as shown in FIG. 10, the shutter 2 compresses the coil spring 5, and the shutter 2 reaching the closed position is constantly urged toward the open position. It becomes a state. At this time, the arm portion 2c of the shutter 2 is in a position close to the operation portion 4a of the access switch 4, but does not press the operation portion 4a, and the access switch 4 is electrically turned off. It has become.

  When the shutter 2 reaches the closed position, as shown in FIGS. 8 and 9, the plunger 3a of the solenoid 3 engages with the shutter 2 to regulate and lock the sliding movement toward the open position. 2 is in a state where the key etc. cannot be inserted by covering the upper side of the key hole A. As a result, it is possible to prevent a third party from tampering with another key or scissors inserted into the key hole A.

  On the other hand, in order to slide the shutter 2 in the closed position to the open position so that the key hole A is exposed to the outside, first, as shown in FIG. 4 is turned on. The coil spring 5 is further pressed and compressed by the shutter 2. Thereby, the power supply of the vehicle including the immobilizer system is turned on, and authentication by the authentication unit 8 is enabled. At this time, the LED 10 (notification means) is lit to notify the driver that the power source has been turned on.

  Thereafter, the ignition key IK is brought close to the housing 1, and the built-in transponder 6 is brought close to the antenna 7 in the housing 1. Thereby, wireless communication is performed between the transponder 6 and the antenna 7, and an authentication code (ID code) is transmitted from the transponder 6 to the antenna 7. The authenticating means 8 authenticates whether or not the authentication code (ID code) is a predetermined normal one. If the authentication code 8 is a normal one, the plunger 3a of the solenoid 3 is immersed (lowered) and the shutter 2 is inserted. And the lock is released. When the engagement between the plunger 3 a and the shutter 2 is released and the lock is released, the shutter 2 naturally moves from the closed position to the open position by the urging force of the coil spring 5.

  Thus, when the shutter 2 reaches the open position, the key hole A is exposed to the outside. Therefore, if the ignition key IK is inserted into the key hole A and rotated in a predetermined direction, the engine can be started and run. It becomes a state. However, even when the ignition key IK is inserted through the key hole A, communication is performed between the transponder 6 and the antenna 7, and an authentication code (ID code) is transmitted from the transponder 6 to the antenna 7. The authentication means 8 authenticates whether or not this authentication code (ID code) is a predetermined regular one, and the engine start is permitted only when it is a regular one.

  According to the above embodiment, the solenoid 3 (provided that the authenticating code is received after the authenticating means 8 is authenticated by bringing the transponder 6 (transmitting means) close to the antenna 7 (receiving means). The lock by the locking means) is released and the shutter 2 can be moved from the closed position to the open position. Therefore, when operating the shutter 2 in the closed position to the open position, compared to the conventional one using a magnetic lock. The unlocking operability of the shutter 2 can be improved and unlocking can be performed easily and smoothly.

  Further, since the transponder 6 (transmission means) is brought close to the antenna 7 (reception means), the authentication means 8 performs authentication, and the solenoid 3 (lock means) can be unlocked. It can be avoided. That is, in order to release the lock, it is necessary for the driver to be aware of the operation of bringing the transponder 6 close to the antenna 7, thereby preventing the lock from being inadvertently released. It can be done.

  In particular, in the present embodiment, since the transponder 6 is built in the holding portion of the ignition key IK, the ignition key IK is brought close to the housing 1 to authenticate the authentication code (ID code) from the transponder 6, and the shutter 2 Then, the ignition key IK can be inserted into the key hole A as it is, and a series of operations can be continuously performed.

  Furthermore, according to the present embodiment, the transmission means is composed of the transponder 6 built in the holding portion of the ignition key IK, and the authentication code is an ID code unique to the vehicle. The ID code unique to the vehicle is transmitted, and the ID code and the authentication code of the immobilizer system permitting the engine start can be shared (shared) only when the ID code is authorized.

  Further, when the lock by the lock means comprising the solenoid 3 is released, the shutter 2 is moved from the closed position to the open position by the biasing force by the bias means comprising the coil spring 5, so that the shutter 2 at the closed position is opened. The driver does not need to operate to the position, and a series of operability from unlocking to opening of the keyhole A can be further improved.

  In addition, since the access switch 4 is provided that is turned on by pressing the shutter 2 locked by the lock means including the solenoid 3 and starts authentication by the authentication means 8, the authentication operation by the authentication means 8 is performed at an arbitrary timing. In addition, the shutter 2 can have both a crime prevention function for closing the key hole A and an operation function for turning on the access switch 4.

  Although the present embodiment has been described above, the present invention is not limited to this. For example, the antenna 7 or the access switch as a receiving means is fixed to a part different from the housing 1 (for example, a handlebar of a motorcycle). Or a handle switch or the like. In this case, as an operation means for turning on the access switch, it is not necessary to use the shutter as in the present embodiment, and an operation button or the like formed in a separate part such as a handle switch may be used.

  Further, the transmission means that can be carried by the driver and capable of transmitting the authentication code is not limited to the transponder that constitutes the immobilizer system as in the present embodiment, and is independent from other transmission means (for example, the ignition key IK). It may be a portable type. In this case, the present invention can also be applied to a vehicle that does not include an immobilizer system. Further, the locking means is not limited to the solenoid 3 as in the present embodiment, but may be one that can be driven by a motor, a cylinder, or the like. Furthermore, the present invention can be applied to a cylinder lock protection device in other vehicles such as a four-wheel vehicle, a buggy, and a snow vehicle in addition to a two-wheel vehicle.

  A cylinder lock protection device that releases the lock by the lock means and can move the shutter from the closed position to the open position only when it is authenticated by the authentication means that a normal authentication code has been received. The present invention can also be applied to ones with different shapes or other functions added.

The perspective view which shows the protection apparatus of the cylinder lock which concerns on embodiment of this invention. Top view showing the cylinder lock protection device (shutter is in the open position) Sectional view taken along line III-III in FIG. Side view of the cylinder lock protection device (with the housing removed to reveal the internal configuration) Block diagram showing the cylinder lock protection device Schematic diagram showing the ignition key applied in the cylinder lock protection device VII-VII line sectional view in FIG. Top view showing the cylinder lock protection device (shutter is in the open position) The longitudinal cross-sectional view which shows the protection apparatus of the cylinder lock in the state of FIG. FIG. 8 is a side view showing a cylinder lock protection device in the state of FIG. Side view showing a state where the access switch is turned on by further sliding the shutter in the closed position, which is a protection device for the cylinder lock.

Explanation of symbols

1 Housing 2 Shutter 3 Solenoid (Locking means)
4 Access switch 5 Coil spring (biasing means)
6 Transponder (transmission means)
7 Antenna (Receiving means)
8 Authentication means 9 ECU
10 LED (notification means)
11 LED (lighting means)
A Key hole S Cylinder lock

Claims (6)

A housing provided above the key hole of the cylinder lock;
A shutter that is movable between a closed position and an open position in the housing, closes the key hole at the closed position, and opens the key hole at the open position;
Lock means for locking the shutter in the closed position to restrict movement to the open position;
In the cylinder lock protection device comprising:
A transmission means for the driver to be portable and capable of transmitting an authentication code;
Receiving means capable of receiving the authentication code from the transmitting means in a non-contact manner when the transmitting means is approached;
Authentication means for authenticating whether or not the authentication code received by the receiving means is authentic;
Only when it is authenticated by the authentication means that a normal authentication code has been received, the lock by the lock means is released, and the shutter can be moved from the closed position to the open position. Protection device for cylinder lock.   2. The protection device for a cylinder lock according to claim 1, wherein the transmission means is composed of a transponder built in a grip portion of an ignition key, and the authentication code is an ID code unique to a vehicle.   And an urging unit that constantly urges the shutter to the open position. When the lock by the lock unit is released, the urging force of the urging unit moves the shutter from the closed position to the open position. The cylinder lock protection device according to claim 1 or 2.   The cylinder lock according to any one of claims 1 to 3, further comprising an access switch that is turned on by pressing the shutter locked by the lock unit and starts authentication by the authentication unit. Protection device.   The cylinder lock according to any one of claims 1 to 4, further comprising a notifying means for lighting and notifying that the authentication code is authenticated by the authenticating means. Protective device.   The cylinder lock protection according to any one of claims 1 to 5, further comprising an illuminating unit that illuminates the key hole by illuminating on the condition that the shutter has moved from the closed position to the open position. apparatus.

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