JP5330214B2 - Cylinder lock protector - Google Patents

Description

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

  Conventionally, in order to prevent a cylinder lock of a two-wheeled vehicle or the like from being tampered with and destroyed by insertion into a key hole such as a scissor or a driver by a third party, for example, a cylinder lock protection device disclosed in Patent Document 1 has been disclosed. Proposed. Such a protective device includes a shutter that can be rotated from a closed position in which the key hole is closed to an open position in which the key hole is open, a torsion spring that biases the shutter from the open position to the closed position, and an open position. A push button for locking the shutter at the position, a magnet lock for locking the key hole by holding the shutter in the closed position, and a magnet key portion for unlocking the magnet lock by the magnetism of the magnet. It was.

  According to the above protective device, when the push button is pressed, the shutter is rotated to the closed position by the biasing force of the torsion spring, the key hole is closed, and the lock by the magnet lock is released at the magnet key part. However, the shutter can be rotated to the open position. The magnet lock has a plurality of magnets that can be engaged and locked with the shutter in the closed position, and the magnet key portion is formed with a plurality of magnets that can face the magnet on the magnet lock side. Yes.

  However, by causing the abutment surface of the magnet key portion to abut against the abutment surface of the magnet lock, the magnet of the magnet lock and the magnet of the magnet key portion are caused to face each other, and a repulsive force is generated. The lock magnet is moved to release the engagement with the shutter, and the lock on the shutter can be released. The magnet key part is integrally formed with the grip part of the ignition key, which is convenient to carry.

Japanese Patent Laid-Open No. 2003-239581

However, the conventional cylinder lock protection device has the following problems because the magnet key portion is integrally formed with the grip portion of the ignition key.
When releasing the lock with the magnet lock, the magnet key contact surface should be placed against the magnet lock contact surface to bring the magnet of the magnet lock close to the magnet key magnet to generate a sufficient repulsive force. It is necessary to make it contact in the state where it was closely attached. However, the mounting state and orientation of the protection device for the cylinder lock, the arrangement position and orientation of the magnet lock, etc. are various, and the way of holding the ignition key by the person who releases the lock by the magnet lock is also various. . However, if the magnet key part is formed integrally with the grip part of the ignition key, the ignition key may become unnatural when trying to contact the magnet key part with the contact surface of the magnet lock. There is a case where it is necessary to operate while gripping in a proper posture or holding method, and the key surfaces are not firmly adhered to each other, so that it is easy to slip and the operability may be deteriorated.

  The present invention has been made in view of such circumstances, and the magnet key portion can be easily and smoothly brought into close contact with the contact surface of the magnet lock, thereby improving operability at the time of unlocking. It is an object of the present invention to provide a cylinder lock protection device.

  According to the first aspect of the present invention, there is provided a housing provided above a key hole of a cylinder lock, a shutter that is movable between a closed position and an open position in the housing, and that opens and closes the key hole, and a closed position A magnet lock having a plurality of locking magnets that engage with and lock the shutter, and a gripping portion of an ignition key that is inserted into and removed from the key hole, and the locking magnet It has a plurality of release magnets that can generate a repulsive force facing each other, and the engagement of the locking magnet with the shutter is released by the repulsive force generated by the release magnet, A magnet key portion that is movable from the closed position to the open position, and the magnet key portion is brought into contact with the contact surface of the magnet lock to lock the magnet lock. In the cylinder lock protection device capable of protecting the removable cylinder lock, the magnet key portion is swingable about a swing shaft formed on the grip portion, and the direction of the magnet key portion is on the grip portion. On the other hand, it can be arbitrarily changed.

  According to a second aspect of the present invention, in the cylinder lock protection device according to the first aspect, the magnet key portion is a ball-shaped member or a pin-shaped member that is biased by a biasing means disposed in the grip portion. And is assembled in a state of being constantly pressed.

  According to a third aspect of the present invention, in the cylinder lock protecting device according to the second aspect, the magnet key portion has a plurality of recesses into which the ball-shaped member or the pin-shaped member urged by the urging means can be fitted. It is formed, and the direction with respect to the holding part is arbitrarily determined according to which concave part the ball-shaped member or the pin-shaped member is inserted into, and the direction can be maintained.

  According to the first aspect of the present invention, the magnet key portion can swing around the swing shaft formed in the gripping portion, and its direction can be arbitrarily changed with respect to the gripping portion. The key portion can be easily and smoothly brought into close contact with the contact surface of the magnetic lock, and the operability when unlocking can be improved.

  According to the invention of claim 2, the magnet key portion is assembled in a state where it is always pressed by a ball-shaped member or a pin-shaped member urged by the urging means disposed in the gripping portion. When the key portion is swung and its direction is changed, an appropriate frictional force is generated between the ball-shaped member or the pin-shaped member, and the operability when unlocking the magnetic lock can be further improved.

  According to the invention of claim 3, the magnet key portion is formed with a plurality of recesses into which the ball-like member or pin-like member urged by the urging means can be fitted. The direction with respect to the holding portion is arbitrarily determined depending on whether the magnet key portion is inserted into the concave portion, and the orientation can be maintained, so that the orientation of the magnet key portion with respect to the gripping portion can be held in a state according to the preference of the operator. it can.

The front view and side view which show the external appearance of the housing which shows the protection apparatus of the cylinder lock which concerns on embodiment of this invention Schematic showing the internal structure of the housing (shutter is in the open position) in the cylinder lock protection device Schematic diagram showing the internal structure of the housing (the shutter is closed) in the cylinder lock protection device Cross-sectional schematic diagram showing a magnet lock (with the shutter locked) in the cylinder lock protection device Cross-sectional schematic diagram showing a magnet lock (with the shutter unlocked) in the cylinder lock protection device A plan view, a front view and a side view showing an ignition key (before the magnet key portion is swung) in the cylinder lock protection device VII-VII line sectional view in FIG. Enlarged view showing the magnet key (before swinging) in the cylinder lock protection device Enlarged view showing the magnet key (after swinging) in the cylinder lock protection device Front view showing the ignition key (after the magnet key is swung) in the cylinder lock protection device Sectional drawing which shows the ignition key (after a magnet key part is rock | fluctuated) in the protection device of the cylinder lock The exploded perspective view which shows the ignition key in the protection device of the cylinder lock The side view which shows the state which made the magnet key part (before rocking | fluctuation) in the protection device of the cylinder lock contact the contact surface of a cylinder lock The side view which shows the state which made the magnet key part (after rocking | fluctuating to one direction) in the protection device of the cylinder lock contact the contact surface of a cylinder lock The side view which shows the state which made the magnetic key part (after rocking | fluctuating to another direction) in the protection device of the cylinder lock contact the contact surface of a cylinder lock

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 of 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. 6, it is mainly comprised from the housing 1, the shutter 3, the magnet lock | rock M, and the magnet key part 7 (refer FIG. 6).

  The housing 1 includes a case and a cover, and is provided above a key hole 2a formed in the rotor 2 of the cylinder lock. As shown in FIGS. 4 and 5, the housing 1 is formed with a boss portion 1 a formed so as to protrude in a substantially cylindrical shape, and the base end side of the shutter 3 is attached to the boss portion 1 a. Thereby, the shutter 3 can be rotated around the boss portion 1a while the base end side is fitted to the boss portion 1a. Note that reference numeral 4 in the drawing denotes a sealing means for sealing between the boss 1a and the shutter 3.

  As described above, the shutter 3 rotates about the boss 1a to be movable between the closed position (see FIG. 3) and the open position (see FIG. 2) in the housing 1, and the key hole 2a. Is made of a non-magnetic material. The overall shape of the shutter 3 can be arbitrarily changed depending on the overall shape and size of the housing 1, the layout of other components, and the like.

  On the base end side of the shutter 3, as shown in FIG. 4, a magnet lock M including a plurality of locking magnets 5 that are engaged and locked with the shutter 3 in the closed position is disposed. Yes. The magnet lock M is configured such that a locking magnet 5 and a spring 6 are accommodated in a hole 1aa formed in a predetermined portion of the boss portion 1a, and the locking magnet 5 is always moved upward by the spring 6. It is supposed to be energized.

  On the other hand, a plurality of locking holes 3a are provided at a position on the base end side of the shutter 3 that faces the boss 1a and coincides with the hole 1aa when the shutter 3 is in the closed position. . As a result, when the shutter 3 is in the open position, the locking hole 3a does not match the hole 1aa, the locking magnet 5 is immersed in the hole 1aa, and the shutter 3 is When reaching the closed position, the locking hole 3a is aligned with the hole 1aa, and the locking magnet 5 can project into the locking hole 3a by the biasing force of the spring 6.

  Thus, when the locking magnet 5 protrudes into the locking hole 3a, the locking magnet 5 is engaged with the shutter 3, and the rotation of the shutter 3 is restricted and locked. The locking magnet 5 is configured such that the upper part and the lower part are different poles (N pole or S pole). The S pole side is locked to the locking hole 3a, and the N pole side is What is locked in the locking hole 3a is selectively disposed.

  A locking projection 3b is formed on the surface opposite to the surface facing the boss 1a on the base end side of the shutter 3, and the inside of the locking projection 3b is the contact surface of the magnet lock M. S2 is made. The contact surface S2 is a flat surface that allows the proximity surface S1 (see FIG. 6) of the magnet key portion 7 to be in contact with the contact surface S2. By making contact, the locking convex portion 3b can be fitted in conformity with the shape of the tip of the magnet key portion 7.

  The magnet key part 7 is formed in the holding part IKa of the ignition key IK inserted into and removed from the key hole 2a as shown in FIGS. As shown in FIG. 12, the ignition key IK includes, in addition to the grip portion IKa, a key portion IKb in which a key crest and a key groove are formed, a fixing pin P for fixing the key portion IKb to the grip portion IKa, A transponder 11, a case 12 that accommodates the transponder 11 and is fixed in the gripping portion IKa, and a decorative cover 14 on which a logo or the like is written are provided.

  Then, by holding the grip portion IKa and inserting the key portion IKb into the key hole 2a and turning, the on position for starting the engine of the vehicle, the off position for stopping the engine, and the handlebar for steering are provided. It is possible to operate between the locking positions to lock. In the present embodiment, the authentication code transmitted from the transponder 11 by radio waves or the like can be received with the key portion IKb inserted into the key hole 2a. The engine is allowed to start only when it is authenticated. The transponder 11 may be appropriately disposed, and may be a cylinder lock protection device that is not disposed.

  However, the magnet key portion 7 is made of a separate part from the gripping portion IKa, and can swing around the swinging shaft L attached to the gripping portion IKa. A plurality of release magnets 8 that can generate a repulsive force opposite to 5 are provided. The release magnet 8 is accommodated in the magnet key portion 7 and is fixed by covering the magnet key portion 7 with the front cover 13. The surface of the surface cover 13 constitutes the proximity surface S1 of the magnet key portion 7. When the magnet key portion 7 is brought into contact with the contact surface S2 of the magnet lock M, the contact surface S2 and the proximity surface are formed. It approaches (or may be in contact) with S1 facing.

  Thus, when the magnet key portion 7 is brought into contact with the contact surface S2 of the magnet lock M (the surface on the base end side of the shutter 3 and surrounded by the locking projection 3b), as shown in FIG. Further, the contact surface S2 and the proximity surface S1 are close to each other, and the plurality of release magnets 8 correspond to the plurality of locking magnets 5 of the magnetic lock M via the base end portion of the shutter 3, respectively. It is set to face each other. Here, the release magnet 8 has a pole (a lower part in the figure) facing the locking magnet 5 that is different from an upper part (a part fitted in the locking hole 3a) of the locking magnet 5 in the figure ( S pole or N pole), and a repulsive force is generated by approaching each other while facing each other.

  Therefore, the locking magnet 5 can be moved downward against the urging force of the spring 6 by the repulsive force generated by the release magnet 8, and can be immersed in the hole 1aa. The combination is released and the shutter 3 can be moved from the closed position to the open position. That is, since the lock by the magnet lock M can be released by bringing the magnet key portion 7 into contact with the contact surface S2 of the magnet lock M, if the ignition key IK is rotated from that state, the shutter 3 is moved. It can be rotated to the open position.

  In the present embodiment, as described above, the magnet key portion 7 can swing around the swing axis L formed on the gripping portion IKa, and its orientation can be arbitrarily changed with respect to the gripping portion IKa. As a result, the magnet key portion 7 can be brought into close contact with the contact surface S2 of the magnet lock M easily and smoothly, and the operability during unlocking can be improved.

  Here, in this embodiment, as shown in FIG. 12, a spring 9 as a biasing means and a ball-shaped member 10 (which may be a pin-shaped member) are disposed in the gripping portion IKa. As shown in FIG. 7, the magnet key portion 7 is assembled in a state where the magnet key portion 7 is always pressed by a ball-shaped member 10 (or a pin-shaped member) urged by a spring 9. In addition, a plurality of (the book-like members) in which the ball-like member 10 (or the pin-like member) urged by the spring 9 can be fitted into a portion of the magnet key portion 7 where the ball-like member 10 (or the pin-like member) is pressed. In the embodiment, three concave portions (a central concave portion 7a, a left concave portion 7b, and a right concave portion 7c) are formed.

  Then, the orientation of the magnet key portion 7 with respect to the gripping portion KIa is arbitrarily determined according to which recess (7a, 7b, 7c) the ball-like member 10 (or pin-like member) is inserted into, and the orientation is maintained. Configured to be able to. For example, as shown in FIG. 8, when the ball-shaped member 10 (or pin-shaped member) is fitted in the central recess 7a, the direction of the magnet key portion 7 (the direction in which the proximity surface S1 is formed) is As shown in FIGS. 6 and 7, the direction is substantially parallel and opposite to the extending direction of the key part IKb, and the direction is maintained. In this case, when the magnet key portion 7 is brought into contact with the contact surface S2 of the magnet lock M, the state shown in FIG.

  If the magnet key portion 7 is swung around the swing axis L and the ball-like member 10 (or pin-like member) is fitted in the left recess 7b as shown in FIG. As shown in FIGS. 10 and 11, the portion 7 is inclined by α ° with respect to the extending direction of the key portion IKb, and the orientation is maintained. In this case, when the magnet key portion 7 is brought into contact with the contact surface S2 of the magnet lock M, the state shown in FIG. Similarly, if the magnet key portion 7 is swung around the swing axis L and the ball-like member 10 (or pin-like member) is fitted in the right recess 7c, the magnet key portion 7 is The direction is inclined by α ° with respect to the extending direction of the IKb (the direction inclined in the direction opposite to the direction in which the IKb is inserted into the left concave portion 7b), and the direction is maintained. In this case, when the magnet key portion 7 is brought into contact with the contact surface S2 of the magnet lock M, the state shown in FIG. In addition, α ° is preferably about 30 ° (30 ° on the right side and 30 ° on the left side from the center).

  According to the present embodiment, the magnet key portion 7 is always pressed by the ball-shaped member 10 (or pin-shaped member) biased by the spring 9 (biasing means) disposed in the gripping portion IKa. Therefore, when the magnet key portion 7 is swung and its orientation is changed, an appropriate frictional force is generated between the ball-shaped member 10 (or the pin-shaped member) and the magnet lock M is unlocked. The operability can be further improved.

  Further, the magnet key portion 7 is formed with a plurality of recesses (7a, 7b, 7c) into which the ball-like member 10 (or pin-like member) biased by the spring 9 (biasing means) can be fitted, and the ball Since the orientation with respect to the gripping portion IKa can be arbitrarily determined according to which concave portion (7a, 7b, 7c) the shaped member 10 (or pin-like member) is fitted, and the orientation can be maintained, the magnet key portion 7 Can be held in a state according to the preference of the operator (any state in FIGS. 13 to 15). When the magnet key portion 7 swings about the swing axis L, in the process of the ball-shaped member 10 (or pin-shaped member) from one recess to the next recess, a peak portion (adjacent recess) It is possible to overcome a mountain portion in between, and to generate an appropriate moderation, thereby improving the operability.

  Although the present embodiment has been described above, the present invention is not limited to this. For example, the magnet key portion can swing around a swing shaft formed on the grip portion, and the direction of the magnet key portion depends on the grip portion. On the other hand, it may be arbitrarily changed, and the direction after the change may not be maintained (a configuration in which the ball-shaped member or the pin-shaped member urged by the urging means is not inserted into the recess). In this embodiment, the spring 9 is used as the biasing means for biasing the ball-shaped member or the pin-shaped member. However, instead of this, other biasing means (such as an elastic member or a leaf spring) may be used. Good. Furthermore, although this embodiment is applied to a two-wheeled vehicle, it can be applied to other vehicles as long as it has a cylinder lock into which an ignition key can be inserted and removed.

  The magnet key portion is swingable about a swing shaft formed in the gripping portion, and a cylinder lock protection device having a magnet key portion whose direction can be arbitrarily changed with respect to the gripping portion. If so, the present invention can also be applied to ones having different external shapes or to which other functions are added.

DESCRIPTION OF SYMBOLS 1 Housing 2 Rotor 2a Key hole 3 Shutter 4 Sealing means 5 Locking magnet 6 Spring 7 Magnet key part 7a, 7b, 7c Recessed part 8 Release magnet 9 Spring (biasing means)
DESCRIPTION OF SYMBOLS 10 Ball-shaped member 11 Transponder 12 Case 13 Surface cover 14 Cosmetic cover M Magnet lock IK Ignition key IKa Holding part S1 (Magnetic key part) Proximity surface S2 (Magnetic lock) Contact surface

Claims (3)

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, and that opens and closes the key hole;
A magnetic lock having a plurality of locking magnets that engage and lock with the shutter in the closed position;
A plurality of release magnets that are formed in the grip portion of the ignition key that is inserted into and removed from the key hole and that can generate a repulsive force facing the locking magnet, are generated by the release magnet. A magnet key portion that releases the engagement of the locking magnet with the shutter by a repulsive force, and moves the shutter from the closed position to the open position;
In a cylinder lock protection device that can protect the cylinder lock that can be unlocked by bringing the magnet key portion into contact with the contact surface of the magnet lock,
The protection of the cylinder lock, wherein the magnet key portion is swingable about a swing shaft formed in the grip portion, and its direction can be arbitrarily changed with respect to the grip portion. apparatus.   2. The magnet key portion is assembled in a state in which the magnet key portion is always pressed by a ball-shaped member or a pin-shaped member biased by a biasing means disposed in the grip portion. Cylinder lock protection device.   The magnet key portion has a plurality of recesses into which the ball-like member or pin-like member urged by the urging means can be fitted, and in which recess the ball-like member or the pin-like member is fitted. The cylinder lock protection device according to claim 2, wherein an orientation with respect to the grip portion is arbitrarily determined and the orientation can be maintained.

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