JP2010168882A - Cylinder lock protection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cylinder lock protection device capable of further improving a crime preventive effect while dispensing with a troublesome shutter blocking operation because of obtaining a state of allowing movement from an open position of a shutter to a blocking position when a rotor is turned into a specific position, and automatically placing the shutter into the blocking position by pulling out an ignition key. <P>SOLUTION: The cylinder lock protection device includes a housing 1; the shutter 3 blocking a keyhole 2a in the blocking position and opening the keyhole 2a in the open position; a locking means for locking the shutter 3 in the blocking position; and an unlocking means for releasing the lock by the locking means. The cylinder lock protection device includes a torsion spring 12 energizing the shutter 3 always in the blocking position; a securing means 6 for securing the shutter 3 in the open position; and a release means (an interlocking part 7 and an operating part 8) for releasing the securing by the securing means 6 when the rotor 2 is turned into a lock position. <P>COPYRIGHT: (C)2010,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.

  A cylinder lock of a motorcycle usually has a rotor formed with a key hole into which an ignition key can be inserted and removed, and conventionally, a cylinder lock is tampered with by inserting a scissor or a driver into the key hole. For example, a cylinder lock protection device as disclosed in Patent Document 1 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 closed 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 can be 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 magnet 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 above-described conventional cylinder lock protection device, since the driver operates the operation unit to place the shutter in the closed position, the operation is troublesome, and the shutter is not in the closed position (the protective device is functioning). There is a problem that parking frequently occurs in a state of not allowing it to occur. In other words, in order to set the shutter to the closed position, two operations of removing the ignition key and the subsequent operation of the operation unit are necessary, so that many users feel that the operation of the operation unit is troublesome, and protection. This causes the problem of parking in a state where the device does not function.

  The present invention has been made in view of such circumstances, and when the rotor rotates to a specific position, the shutter is allowed to move from the open position to the closed position, and automatically when the ignition key is removed. Since the shutter is in the closed position, it is an object to provide a cylinder lock protection device that can eliminate the troublesome shutter closing operation and can further improve the crime prevention effect.

  According to a first aspect of the present invention, there is provided a housing provided above a rotor in which a key hole for inserting and removing an ignition key is formed, and is movable between a closed position and an open position in the housing. A shutter that closes the key hole at a position and opens the key hole at an open position; a locking means that locks the shutter in the closed position; and a lock that is unlocked by the locking means, and the shutter is opened from the closed position. In the cylinder lock protection device, which is capable of protecting the cylinder lock, the biasing means for constantly biasing the shutter to the closed position, and the shutter biased by the biasing means And a release means for releasing the lock by the lock means when the rotor is rotated to a specific position. That.

  According to a second aspect of the present invention, in the cylinder lock protecting device according to the first aspect, the rotor includes an on position for starting an engine provided in the vehicle, an off position for stopping the engine, and a handlebar provided in the vehicle. And the specific position is the lock position.

  According to a third aspect of the present invention, in the cylinder lock protection device according to the second aspect, when the rotor is in the off position, an operation element that can be unlocked by the locking means by an operation is provided. It is characterized by that.

  According to a fourth aspect of the present invention, in the cylinder lock protection device according to the third aspect, when the rotor is in the on position, the shutter is released even if the locking means is unlocked by the operating element. It is characterized by comprising restricting means for restricting locking and reaching the closed position.

  According to a fifth aspect of the present invention, in the cylinder lock protecting device according to any one of the first to fourth aspects, the release means is extended from the rotor and is capable of rotating together with the rotor. And an operating portion that is pressed by the interlocking portion to move the locking means when the rotor reaches a specific position, and releases the locking by the locking means.

  According to a sixth aspect of the present invention, there is provided a housing provided above a rotor in which a key hole for inserting and removing an ignition key is formed, and is movable between a closed position and an open position in the housing. A shutter that closes the key hole at a position and opens the key hole at an open position; a locking means that locks the shutter in the closed position; and a lock that is unlocked by the locking means, and the shutter is opened from the closed position. In the cylinder lock protection device, which is capable of protecting the cylinder lock, the biasing means for constantly biasing the shutter to the closed position, and the shutter biased by the biasing means And a release means for releasing the lock by the lock means, wherein the rotor starts an engine included in the vehicle. The shutter can be rotated from the open position to the closed position when the rotor is rotated to the off position. It is possible to move up to.

  According to a seventh aspect of the present invention, in the cylinder lock protection device according to the sixth aspect of the invention, when the rotor is in the off position, an operation element that can be unlocked by the locking means by an operation is provided. It is characterized by that.

  According to an eighth aspect of the present invention, in the cylinder lock protection device according to the seventh aspect, when the rotor is in the on position, the shutter is released even when the locking means is unlocked by the operating element. It is characterized by comprising restricting means for restricting locking and reaching the closed position.

  A ninth aspect of the present invention is the cylinder lock protection device according to any one of the sixth to eighth aspects, wherein the release means is extended from the rotor and is rotatable with the rotor. And an operating portion that is pressed by the interlocking portion to move the locking means when the rotor reaches a specific position, and releases the locking by the locking means.

  A tenth aspect of the present invention is the cylinder lock protection device according to any one of the second to ninth aspects, wherein the shutter is in an off position when the locking by the locking means is released. Even if it is in any position of the locked position, it is in contact with the side surface of the ignition key.

  The invention according to claim 11 is the cylinder lock protection device according to claim 10, wherein the shutter has a first portion that abuts against a side surface of the ignition key when the rotor is in an off position, and the rotor is locked. A second portion that abuts against a side surface of the ignition key when in position is formed.

  According to the first aspect of the present invention, the shutter that is always urged to the closed position by the urging means is locked at the open position by the locking means, and is locked by the releasing means when the rotor is rotated to a specific position. The locking by the means can be released. Therefore, when the rotor is rotated to a specific position, the shutter is allowed to move from the open position to the closed position, and when the ignition key is removed from that state, the shutter automatically becomes the closed position. The closing operation can be made unnecessary, and the crime prevention effect can be further improved.

  According to the second aspect of the invention, when the rotor is rotated to the locked position, the release means releases the lock by the lock means, and when the ignition key is removed from this state, the shutter is automatically set to the closed position. This locking operation also serves as a shutter closing operation, so that the operability can be further improved and the crime prevention effect can be further improved.

  According to the third and seventh aspects of the present invention, since the operation element capable of releasing the locking by the locking means by the operation when the rotor is in the off position is provided, regardless of the position of the rotor. By operating the operation element, the shutter can be set to the closed position at an arbitrary timing.

  According to the fourth and eighth aspects of the present invention, when the rotor is in the ON position, the shutter is locked to reach the closed position even when the locking means is unlocked by the operating element. Since the control means is provided, the shutter is prevented from moving from the open position to the closed position and interfering with the ignition key even if the operating element is erroneously operated when the rotor is in the on position. be able to.

  According to the fifth and ninth aspects of the present invention, the releasing means extends from the rotor and can be rotated together with the rotor, and is pressed by the interlocking portion when the rotor reaches a specific position. Since it has an operating part that moves the locking means and releases the locking by the locking means, a troublesome shutter closing operation can be eliminated with a simple structure, and the manufacturing cost of the protection device can be reduced. Simplification of maintenance and the like can be achieved.

  According to the invention of claim 6, when the rotor is rotated to the off position, the shutter can be moved from the open position to the closed position. Therefore, when the rotor is rotated to the off position, the shutter is allowed to move from the open position to the closed position. In this state, if the ignition key is removed from the state, the shutter can be automatically set to the closed position, and the troublesome shutter closing operation can be eliminated, and the crime prevention effect can be further improved.

  According to the invention of claim 10, since the shutter is in contact with the side surface of the ignition key even when the rotor is in the off position or the locked position when the locking by the locking means is released. Thus, it is possible to reliably prevent the shutter from coming into contact with the key crest of the ignition key and causing damage or the like.

  According to the invention of claim 11, the shutter has a first part that contacts the side surface of the ignition key when the rotor is in the off position, and a second part that contacts the side surface of the ignition key when the rotor is in the locked position. Thus, it is possible to reliably prevent the shutter from coming into contact with the key crest of the ignition key and causing damages with a simple configuration without adding separate components.

The perspective view which shows the protection apparatus of the cylinder lock which concerns on the 1st Embodiment of this invention. The top view which shows the internal structure in the protection device of the cylinder lock (the shutter is an open position, the rotor is an off position) It is a cross-sectional schematic diagram which shows the locking means vicinity in the protection apparatus of the cylinder lock, (a) The state in which the shutter was locked by the locking means, (b) The state in which the shutter was unlocked by the unlocking means The top view and front view which show the ignition key and magnet key in the protection device of the cylinder lock The top view which shows the internal structure in the protection device of the cylinder lock (the shutter is in the open position, the rotor is in the middle of the locked position from the off position) The top view which shows the internal structure in the protection device of the cylinder lock (the shutter is in the open position, the rotor is in the middle of the locked position from the off position) The top view which shows the internal structure in the protection device of the cylinder lock (the shutter is in the open position, the rotor is in the middle of the locked position from the off position) The top view which shows the internal structure in the protection device of the cylinder lock (the shutter is in the open position, the rotor is in the locked position, and the ignition key is inserted) The top view which shows the internal structure in the protection device of the cylinder lock (the state where the shutter is in the closed position, the rotor is in the locked position, and the ignition key is removed) The top view which shows the internal structure in the protection device of the cylinder lock (the shutter is in the middle of the open position from the closed position, the rotor is in the locked position) The top view which shows the internal structure in the protection device of the cylinder lock (the shutter is in the middle of the open position from the closed position, the rotor is in the locked position) The top view which shows the internal structure in the protection device of the cylinder lock (the shutter is locked in the open position, the rotor is in the locked position) A arrow view in FIG. B arrow view in FIG. The top view which shows the internal structure in the protection apparatus of the cylinder lock which concerns on the 2nd Embodiment of this invention. Side view of the cylinder lock protection device XVII-XVII line sectional view in FIG. XVIII-XVIII line sectional view in FIG. The top view which shows the internal structure in the protection device of the cylinder lock (the shutter is an open position, the rotor is an off position) The top view which shows the internal structure in the protection device of the cylinder lock (the shutter is in the open position, the rotor is in the middle of the locked position from the off position) The top view which shows the internal structure in the protection device of the cylinder lock (the shutter is closed position, the rotor is locked position) The top view which shows the internal structure in the protection device of the cylinder lock (the shutter is in the middle of the open position from the closed position, the rotor is in the locked position) The top view which shows the internal structure in the protection device of the cylinder lock (the shutter is in the open position and the rotor is in the middle of the off position from the locked position) External view showing a cylinder lock protection device according to a third embodiment of the present invention. BB sectional view in FIG. CC sectional view in FIG. DD sectional view taken on the line in FIG. The top view which shows the internal structure in the protection device of the cylinder lock The top view which shows the appearance and internal structure in the protection device of the cylinder lock (the shutter is in the open position, the rotor is in the middle of the locked position from the off position) The top view which shows the appearance and internal structure in the protection device of the cylinder lock (the shutter is in the middle of the closed position from the open position, the rotor is in the middle of the locked position from the off position) The top view which shows the appearance and internal structure in the protection device of the cylinder lock (the shutter is in the middle of the closed position from the open position, the rotor is in the locked position) The top view which shows the appearance and internal structure in the protection device of the cylinder lock (the shutter is closed position, the rotor is locked position) The top view which shows the external appearance and internal structure in the protection device of the cylinder lock (the state where the operation element is operated, the shutter is in the open position, and the rotor is in the off position) The top view which shows the external appearance and internal structure in the protection device of the cylinder lock (the state after operating the operation element, the shutter is in the closed position, and the rotor is in the off position) The top view which shows the external appearance and internal structure in the protection device of the cylinder lock (the state after operating the operation element, the shutter is in the open position, and the rotor is in the on position) AA sectional view in FIG. The top view which shows the external appearance and internal structure in the protection device of the cylinder lock (the operation process by the magnet key, the shutter is in the middle of the open position from the closed position, the rotor is in the locked position) The top view which shows the appearance and internal structure in the protection device of the cylinder lock (the operation process with a magnet key, where the shutter is in the open position and the rotor is in the locked position) The external perspective view which shows the protection apparatus of the cylinder lock which concerns on the 4th Embodiment of this invention, and the disassembled perspective view which shows an internal structure The top view which shows the external appearance and internal structure in the protection device of the cylinder lock (the state where the shutter is in contact with the side surface of the ignition key when the rotor is in the off position) The top view which shows the external appearance and internal structure in the protection device of the cylinder lock (the state where the shutter is in contact with the side surface of the ignition key when the rotor is in the locked position)

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The cylinder lock protection device according to the first 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 FIGS. 1 to 4, a housing 1, a shutter 3, a magnet Ma as a locking means (see FIG. 3), an unlocking means composed of a magnet key MK (see FIG. 4), and an urging means as It is mainly composed of a torsion spring 12, a locking means 6, and a releasing means having an interlocking portion 7 and an operating portion 8.

  The housing 1 is provided above the rotor 2 and accommodates various components excluding the magnet key MK described above and can accommodate the upper end portion of the cylinder body S constituting the cylinder lock. In the cylinder body S, a rotor 2 having a plurality of tumblers is disposed, and a key hole 2a is formed in the rotor 2 so that the ignition key IK can be inserted and removed. Yes.

  Further, the rotor 2 can be rotated with the ignition key IK inserted into the key hole 2a, and an on position ("ON" is displayed in FIG. 1) for starting the engine included in the motorcycle. Position), an off position where the engine is stopped (a position where “OFF” is displayed in the figure), and a lock position where the handlebar of the vehicle is locked (a position where “LOCK” is displayed in the figure). ).

  When the rotor 2 is in the off position, the ignition key IK inserted into the key hole 2a is pressed and pushed, and in this state, it can be rotated to the left side in the figure, so that the rotation operation to the lock position is possible. Has been. When the rotor 2 moves to this lock position, the lock bar R in the cylinder body S is configured to protrude, and the lock bar R is in a lock hole (not shown) formed in the rotation shaft of the handle bar. The handlebar is locked by being inserted and locked.

  The shutter 3 can be moved (turned) between a closed position and an open position in the housing 1, and can close the key hole 2a at the closed position and open the key hole 2a at the open position. Specifically, the base end side of the shutter 3 is fitted to a convex portion 11 formed on the housing 1 via a sealing material 5 such as an O-ring, and can be rotated around the convex portion 11. The shutter 3 is in the position shown in FIG. 2 in the open position, and the hole 3a formed in the shutter 3 opens the key hole 2a, and in the closed position is in the position shown in FIG. It covers and closes.

  The torsion spring 12 as an urging means is for constantly urging the shutter 3 to the closed position by engaging one end with the shutter 3 and the other end with the housing 1. In the present embodiment, as shown in FIGS. 3A and 3B, the torsion spring 12 is configured to apply a biasing force to the shutter 3. Instead of the torsion spring 12, other urging means for urging the shutter 3 to the closed position at all times may be used.

  The locking means 6 locks the shutter 3 biased by the torsion spring 12 in the open position, and biases it toward the locking side (the engagement groove 3b side of the shutter 3 in the open position) by the coil spring 9. Has been. However, an engagement groove 3b is formed in a part of the shutter 3, and when the shutter 3 is in the open position, the locking means 6 enters and fits, so that the shutter 3 is locked in the open position. To get.

  As shown in FIGS. 3 (a) and 3 (b), magnets Ma as locking means are respectively disposed in the recesses 11a formed in a plurality (four in the present embodiment) in the protrusions 11 of the housing 1. It is biased upward by the coil spring 4 and can be fitted into the recess 3c of the shutter 3 at the closed position to lock the shutter 3. That is, when the shutter 2 is in the open position, the magnet Ma is pushed on the back side of the shutter 3 and is accommodated in the recess 11a. On the other hand, when the shutter Ma is in the closed position, the magnet Ma projects upward. It can be engaged with the recess 3c. Thereby, the shutter 3 in the closed position can be locked so as not to rotate in the open position direction.

  The magnet key MK as unlocking means is for releasing the lock by the magnet Ma (locking means) and moving the shutter 3 from the closed position to the open position. As shown in FIG. 4, the magnet key MK includes a portion integrally formed with the grip portion of the ignition key IK, and has a magnet Mb inside. In the ignition key IK, a metal portion (key portion) to be inserted into the key hole 2a is formed by the surface on which the key mountain IKa is formed and the side surface IKb. 3B, when the magnet key MK is brought into contact with the fitting portion 3d of the shutter 3, the magnet Mb and the magnet Ma face each other, and the magnets Mb and Ma are different from each other ( S pole and N pole) are set to face each other. At this time, the magnet key MK is fitted to the fitting portion 3d in the rotation direction and can be rotated together.

  Thus, when the magnet key MK is brought into contact with the fitting portion 3d of the shutter 3 and fitted in the rotating direction, the magnet Ma is urged by the coil spring 4 by the repulsive force accompanying the magnetic force of the magnets Ma and Mb. Therefore, the shutter 3 can be rotated to the open position by rotating the magnet key MK as it is. When the shutter 3 reaches the open position, the locking means 6 enters the locking groove 3b of the shutter 3 and is locked.

  Here, in the present embodiment, a releasing means including the interlocking portion 7 and the operating portion 8 is provided, and when the rotor 2 rotates to the lock position (specific position) by the releasing means, The locking by the stopping means 6 can be released. Specifically, the interlocking portion 7 extends from the rotor 2 and is rotatable with the rotor 2 between an on position, an off position, and a lock position.

  When the rotor 2 reaches the locked position (specific position), the operating portion 8 is configured such that its tapered surface 8a is pressed by the tip 7a of the interlocking portion 7 and moves upward in FIG. The actuating portion 8 is configured to be connected to the engaging means 6, and can operate the engaging means 6 in the same direction (upward in FIG. 2) when operated by being pressed by the interlocking portion 7. It has become. Thereby, since the latching means 6 is moved against the biasing force of the coil spring 9, the latching of the shutter 3 by the latching means 6 can be released.

  Further, the housing 1 is formed with a protruding shape 10 extending along the rotation locus of the operating portion 8. The protruding shape 10 has an inclined surface 10a having a predetermined inclination angle and a flat surface 10b that is flat with respect to the bottom surface of the housing 1, and the rotor 2 rotates from the off position to the locked position. In the process (the process of rotating the rotor 2 from the state of FIG. 13), after the locking of the locking means 6 with respect to the shutter 3 is released, the interlocking portion 7 has the inclined surface 10a (in this case, an upward gradient). As shown in FIG. 14, the tip 7 a is configured to be separated from the tapered surface 8 a of the operating portion 8 (overlapping in the vertical direction in the figure).

Next, the operation of the cylinder lock protection device according to the first embodiment will be described.
First, when the rotor 2 is in the off position, as shown in FIG. 2, the shutter 3 is locked in the open position by the locking means 6, and the key hole 2a faces upward (outside). ing. In this state, the engine can be started by inserting the ignition key IK into the key hole 2a and turning it to the on position. The engine can be started from the on position to the off position and returned to the initial position. The engine stops.

  On the other hand, when the ignition key IK is pressed from the off position and rotated to the lock position, the lock bar R protrudes and the handle bar of the motorcycle can be locked. The rotation process to the locked position is as follows. That is, when the rotor 2 is rotated from the OFF position in accordance with the rotation operation of the ignition key IK, the interlocking portion 7 is also rotated, and the tip 7a thereof is a tapered surface 8a of the operating portion 8 as shown in FIGS. Abut.

  When the rotor 2 further rotates, as shown in FIG. 6, the operating portion 8 moves to the upper side in the figure against the urging force of the coil spring 9 by the action of the cam by the tapered surface 8 a, and accordingly Thus, the locking means 6 is separated from the engagement groove 3b. As a result, the shutter 3 is unlocked and is allowed to move toward the closed position by the biasing force of the torsion spring 12, but as shown in FIG. 7, the ignition key inserted into the key hole 2a. The open position is maintained by interfering with IK and only slightly rotating.

  When the rotor 2 is further rotated from this state, as shown in FIGS. 8 and 14, the interlocking portion 7 is rotated while going up along the inclined surface 10a of the protruding shape 10, and the interlocking portion 7 is rotated as shown in FIG. It moves to the front side in the direction perpendicular to the middle sheet surface, and its tip 7 a is separated from the operating portion 8. Thereby, the pressing force from the interlocking portion 7 does not reach the operating portion 8, and the operating portion 8 and the locking means 6 are moved to the lower side in the figure by the urging force of the coil spring 9. At this time, since the shutter 3 is slightly rotated as described above, the locking means 6 does not enter the engaging groove 3b as shown in FIG.

  Thus, when the rotor 2 reaches the locked position, the operating portion 8 is brought into a state where it has moved up the inclined surface 10a of the protruding shape 10 and slid on the flat surface 10b. Thereafter, when the ignition key IK is removed from the key hole 2a, as shown in FIG. 9, the shutter 3 is rotated around the convex portion 11 by the urging force of the torsion spring 12 to reach the closed position, and the magnet Ma is recessed. 3c enters and engages, and the shutter 3 is locked at the closed position. Thereby, since the key hole 2a can be covered and closed by the shutter 3, insertion of scissors or the like by a third party for the purpose of mischief or the like can be prevented.

  On the other hand, in order to rotate the shutter 3 to the open position, the magnet key MK is brought into contact with the fitting portion 3d, and the magnets Mb having different poles are opposed to the magnet Ma and locked by the magnet Ma (of the shutter 3). Unlock). Then, by rotating the magnet key MK as it is, the magnet key MK is rotated from the closed position to the open position, and the state shown in FIGS. 10 to 12 is obtained, and the locking means 6 is reentered into the engaging groove 3b to engage the shutter 3. Stop.

  When the shutter 3 reaches the open position, as shown in FIG. 12, the hole 3a formed in the shutter 3 becomes a position corresponding to the key hole 2a, and the key hole 2a faces the outside. Thus, if the ignition key IK is inserted into the key hole 2a and rotated, the interlocking portion 7 can be moved together with the rotor 2 to the initial position, and the rotor 2 is moved from the locked position to the off position (and further (On position).

Next, a cylinder lock protection device according to a second embodiment of the present invention will be described.
As in the first embodiment, 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 protects the cylinder lock by allowing the key hole to be opened and closed from the outside. As shown in FIGS. 15 to 19, the housing 13, the rotor 14, the shutter 15, the magnet Ma as the locking means, the unlocking means including the magnet key MK, and the biasing means It is mainly composed of a torsion spring 19, an engaging convex portion 16a as a locking means, and a releasing means having an interlocking portion 14b and an upper and lower slider 16 as an operating portion.

  Similarly to the first embodiment, the rotor 14 is formed with a key hole 14a into which the ignition key IK can be inserted. Similarly to the first embodiment, the rotor 14 is turned on to start the engine included in the motorcycle. It can be rotated between an off position to be stopped and a lock position for locking a handlebar included in the vehicle. The housing 13, the torsion spring 19 (biasing means), the magnet Ma (locking means), the magnet key MK (unlocking means), and the like are the same as those in the first embodiment, and detailed descriptions thereof will be given. Omitted.

  The shutter 15 can be moved (turned) between a closed position and an open position within the housing 13, and can close the key hole 14a at the closed position and open the key hole 14a at the open position. Specifically, the base end side of the shutter 15 has a convex portion 11 (see FIG. 17) formed on the housing 13 and a sealing material such as an O-ring (similar to the first embodiment, and the reference numeral 5 in FIG. ) And can be rotated around the convex portion 11. The shutter 15 is in the position shown in FIG. 19 in the open position, and opens the key hole 14a, and is in the position shown in FIG. 21 in the closed position, and covers and closes the key hole 14a.

  As shown in FIGS. 17 and 18, a groove shape D is formed on the rear surface side of the shutter 15, and the groove shape D is engaged with the engaging convex portion 16 a so that the shutter 15 is in the open position. An engaging portion 15a that can be locked is formed. The engaging convex portion 16a constitutes a locking means for locking the shutter 15 biased by a torsion spring 19 as a biasing means at an open position, and is formed to protrude integrally with the upper and lower sliders 16. .

  As shown in FIG. 19, the vertical slider 16 is accommodated in a regulating wall portion 13a formed in the housing 13 and is slidable in the vertical direction in FIG. Always energized on the upper side. Further, the upper and lower sliders 16 are formed with left and right sliders 16b that are slidable in the left and right directions in the figure. The left and right sliders 16b are always urged to the right side in the figure by a spring 18, The front end side protrudes from the side surface of the vertical slider 16.

  The interlocking portion 14b is a portion that is integrally extended from the rotor 14 and is rotatable with the rotor 14. The interlocking portion 14b is pressed while the ignition key IK is inserted into the key hole 14a, and is directly moved to the locked position. In the process of rotating, as shown in FIG. 20, it is configured to be able to contact and press the tip of the left and right slider 16b. That is, when the rotor 14 reaches the locked position (specific position), the interlocking portion 14b presses the left and right sliders 16b, thereby moving the entire upper and lower sliders 16 downward in the figure against the urging force of the spring 17. It is configured to obtain.

  Along with this, the engaging convex portion 16 moves downward in the figure and is separated from the engaging portion 15a, and the shutter 15 is unlocked. Then, as shown in FIG. 21, the shutter 15 reaches the closed position by the biasing force of the torsion spring 19 to cover and close the key hole 14a, and the magnet Ma is formed in the concave portion of the shutter 15 (the concave portion 3c in the first embodiment). It is the same, and is fitted and locked in FIG. The upper and lower sliders 16 that are no longer applied with the pressing force from the interlocking portion 14 b return to the initial state by the urging force of the spring 17.

  On the other hand, in order to rotate the shutter 15 to the open position, a magnet key MK (similar to the first embodiment) is brought into contact with the fitting portion 15b and magnets Mb having different poles (see the first embodiment). ) Is opposed to the magnet Ma (see the first embodiment), and the locking by the magnet Ma (locking of the shutter 15) is released. Then, by rotating the magnet key MK as it is, the magnet key MK is rotated from the closed position to the open position, so that the state shown in FIGS. 22 to 23 is obtained, and the engaging convex portion 16a as the locking means reenters the engaging portion 15a. The shutter 15 is locked.

  When the shutter 15 reaches the open position, as shown in FIG. 23, the key hole 14a faces the outside. Thus, if the ignition key IK is inserted into the key hole 14a and rotated, the interlocking portion 14b can be moved together with the rotor 14 to the initial position, and the rotor 14 is moved from the locked position to the off position (and further (On position). In the process of rotating the rotor 14 from the locked position to the off position, as shown in FIG. 23, when the interlocking portion 14b presses the left and right sliders 16b, the left and right sliders 16b resist the urging force of the spring 18. Thus, the rotor 14 can be moved (slid to the left in the figure) to allow the rotor 14 to turn to the off position.

  According to the first embodiment and the second embodiment described above, the shutters (3, 15) always urged to the closed position by the urging means (torsion spring 12, torsion spring 19) are engaged with the locking means (6 When the rotor (2, 14) is rotated to the locked position (specific position), the release means (the interlocking portion 7 and the operating portion 8 or the interlocking portion 14b) is engaged. And the upper and lower sliders 16) as the operating parts can release the locking by the locking means. Therefore, when the rotor is rotated to the locked position (specific position), the shutter is allowed to move from the open position to the closed position, and if the ignition key IK is removed from this state, the shutter automatically becomes the closed position. The troublesome shutter closing operation can be eliminated, and the crime prevention effect can be further improved.

  Further, when the rotor (2, 14) is rotated to the locked position, the release means releases the locking by the locking means, and when the ignition key IK is removed from this state, the shutter automatically enters the closed position. The lock operation also serves as a shutter closing operation, so that the operability can be further improved and the crime prevention effect can be further improved. That is, when the position of the rotor which is unlocked by the locking means by the releasing means is set to the “lock position” as in this embodiment, the rotor is rotated to another specific position (off position or the like). The operability can be improved as compared with the case where the releasing means unlocks the locking means.

  Further, the release means includes an interlocking portion (7, 14b) that extends from the rotor (2, 14) and is rotatable with the rotor (2, 14), and the rotor (2, 14) is in the locked position ( When it reaches a specific position, it is pressed by the interlocking portion (7, 14b) to move the locking means (6, engaging convex portion 16a) and release the locking by the locking means (8, upper and lower sliders) 16), the troublesome shutter closing operation can be eliminated with a simple structure, and the manufacturing cost of the protective device can be reduced and the maintenance can be simplified.

Next, a cylinder lock protection device according to a third embodiment of the present invention will be described.
As in the first and second embodiments, 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 the key lock can be opened and closed from the outside. 24 to 28, the housing 20, the rotor 21, the shutter 22, the magnet Ma as the locking means, the unlocking means including the magnet key MK, and the biasing means, as shown in FIGS. Is composed mainly of a torsion spring 26, an engaging convex portion 23a as a locking means, a releasing means having an interlocking portion 21b and a left and right slider 23 as an operating portion, and an operating element 27. .

  The rotor 21 is formed with a key hole 21a into which the ignition key IK can be inserted. Similarly to the first and second embodiments, the rotor 21 has an on position for starting the engine included in the motorcycle, an off position for stopping the engine, and The vehicle can be rotated between lock positions for locking a handlebar included in the vehicle. The housing 20, the torsion spring 26 (biasing means), the magnet Ma (locking means), the magnet key MK (unlocking means), and the like are the same as those in the first embodiment, and detailed descriptions thereof will be given. Omitted. Reference numeral 29 in the drawing indicates a moderation spring for imparting moderation associated with the rotation operation of the rotor 21, and the tip of the moderation provision spring 29 enters a recess 21 d formed in the rotor 21. Has been.

  The shutter 22 can be moved (turned) between a closed position and an open position within the housing 20, and can close the key hole 21a at the closed position and open the key hole 21a at the open position. Specifically, the base end side of the shutter 22 is fitted into a convex portion formed on the housing 20 via a sealing material such as an O-ring (same as in the first embodiment, see reference numeral 5 in FIG. 26). And can be rotated around the convex portion. The shutter 22 is at the position shown in FIG. 29 at the open position, and opens the key hole 21a, and at the closed position, it is at the position shown in FIG. 32 so as to cover and close the key hole 21a.

  As shown in FIG. 28, the shutter 22 is formed with a cam shape β and an abutting portion α, and a portion connected to the cam shape β is engaged with an engaging convex portion 23a to thereby form the shutter 22. An engaging portion 22a that can be locked in the open position is formed. The engaging convex portion 23a constitutes a locking means for locking the shutter 22 biased by a torsion spring 26 as a biasing means at an open position, and is formed to project integrally with the left and right sliders 23. .

  As shown in FIG. 28, the left / right slider 23 is accommodated in a recess formed in the housing 20 and is slidable in the left / right direction in the figure. It is energized. The left and right sliders 23 are each formed with a vertical slider 23b that is slidable in the vertical direction in the figure. The vertical slider 23b is always urged downward in the figure by a spring 25. The front end side protrudes from the side surface of the left and right slider 23.

  The interlocking portion 21b is formed of a portion that is integrally extended from the rotor 21 and is rotatable with the rotor 21. The interlocking portion 21b is pressed while inserting the ignition key IK into the key hole 21a, and is directly moved to the locked position. In the process of rotating, as shown in FIG. 29 (b), it is configured to be able to contact and press the tip of the upper and lower sliders 23b. That is, when the rotor 21 reaches the lock position (a specific position), the interlocking portion 21b presses the upper and lower sliders 23b, whereby the entire left and right sliders 23 can move to the left in the figure against the urging force of the spring 24. It is configured as follows.

  Along with this, the engaging convex portion 23a moves to the left side in the drawing and is separated from the engaging portion 22a, and the shutter 22 is unlocked. As shown in FIGS. 30 and 31, the shutter 22 that has been unlocked moves toward the closed position in the process of the rotor 21 reaching the locked position, and the ignition key IK with the tip inserted through the key hole 21 a. It will abut. Then, when the ignition key IK is removed from the key hole 21a, the shutter 22 reaches the closed position by the biasing force of the torsion spring 26 as shown in FIG. The concave portion (similar to the concave portion 3c in the first embodiment, see FIG. 3) is fitted and locked. It should be noted that the left and right sliders 23 to which the pressing force from the interlocking portion 21 b is no longer applied are returned to the initial state by the urging force of the spring 24.

  On the other hand, in order to rotate the shutter 22 to the open position, a magnet Mb (similar to the first embodiment) is brought into contact with the fitting portion 22b and magnets Mb having different poles (see the first embodiment). ) Is opposed to the magnet Ma (see the first embodiment), and the locking by the magnet Ma (the shutter 22 is locked) is released. Then, by rotating the magnet key MK as it is, the magnet key MK is rotated from the closed position to the open position, and the state shown in FIGS. 37 to 38 is obtained, and the engaging convex portion 23a as the locking means is reentered into the engaging portion 22a. The shutter 22 is locked.

  When the shutter 22 reaches the open position, as shown in FIG. 38A, the key hole 21a faces the outside. Thus, if the ignition key IK is inserted into the key hole 21a and rotated, the interlocking portion 21b can be moved together with the rotor 21 to the initial position, and the rotor 21 is moved from the locked position to the off position (and further (On position). In the process of rotating the rotor 21 from the locked position to the off position, as shown in FIG. 37, the cam shape β pushes the engagement convex portion 23a to the left side and moves the left and right sliders 23 in the same direction. When the OFF position is reached, the engaging portion 22a engages with the engaging convex portion 23a as shown in FIG.

  When the rotor 21 is in the off position, the operating element 27 can be operated to operate the left and right sliders 23 as operating parts to unlock the engaging projections 23a as locking means. It is. Specifically, when the operating element 27 is operated by moving it to the left in the drawing against the biasing force of the spring 28, the tip 27a of the operating element 27 moves the left and right sliders 23 in the same direction as shown in FIG. As a result, the engagement convex portion 23a is separated from the engagement portion 22a to be disengaged, and the shutter 22 is moved to the closed position as shown in FIG. Accordingly, the shutter 22 can be set to the closed position at an arbitrary timing by operating the operation element 27 regardless of the position of the rotor 21.

  Furthermore, in the present embodiment, when the rotor 21 is in the on position, the shutter 22 is locked even if the locking operation of the engaging protrusion 23a (locking means) is released by the operation of the operating element 27. A restricting means for restricting reaching the closed position is provided. This restricting means is composed of a protrusion 21c formed integrally with the rotor 21, and as shown in FIGS. 35 and 36, when the rotor 21 is in the on position, it contacts the contact portion α of the shutter 22. Thus, even when the engagement by the engagement convex portion 23a is released, the shutter 22 is locked in the open position. This prevents the shutter 22 from moving from the open position to the closed position and interfering with the ignition key IK even if the operating element 27 is erroneously operated when the rotor 21 is in the on position. it can.

Next, a cylinder lock protection device according to a fourth embodiment of the present invention will be described.
As in the third embodiment, 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 protects the cylinder lock by allowing the key hole to be opened and closed from the outside. As shown in FIG. 39, the housing 20, the rotor 21, the shutter 22, the magnet Ma as the locking means, the unlocking means including the magnet key MK, and the torsion spring 26 as the urging means. And an engaging projection 23a as a locking means, a releasing means having an interlocking portion 21b and a left and right slider 23 as an operating portion, and an operating element 27 (that is, a shutter 22). Except for the shape, the configuration is substantially the same as that of the third embodiment, so refer to the drawing of the second embodiment). In addition, the same code | symbol is attached | subjected to the component similar to 3rd Embodiment, and those detailed description is abbreviate | omitted.

  Here, as shown in FIGS. 40 and 41, the shutter 22 according to the present embodiment has the rotor 21 in any of the off position and the locked position when the engagement by the engagement convex portion 23a (the engagement means) is released. Even when it is in the position, it is configured to contact the side surface IKb of the ignition key IK. Specifically, as shown in FIG. 40, the shutter 22 according to the present embodiment includes a first portion 22c that contacts the side surface IKb of the ignition key IK when the rotor 21 is in the off position, and a shutter 22 as shown in FIG. In addition, a second portion 22d that contacts the side surface IKb of the ignition key IK when the rotor 21 is in the locked position is formed.

  In FIG. 40, when the ignition key IK is inserted into the key hole 21a of the rotor 21 and the rotor 21 is in the off position, the shutter 22 is moved from the closed position to the open position by operating the operating element 27. FIG. 41 shows a state in which the ignition key IK is inserted into the key hole 21a of the rotor 21, and the torsion spring 26 (biasing force) is turned by rotating the lock key to the lock position. The shutter 22 is moved from the closed position toward the open position by the urging force of the means.

  Thus, in the process of extracting the ignition key IK from the key hole 21a, the side surface IKb of the ignition key IK slides while contacting the shutter 22, and the shutter 22 is set to the closed position by extracting the ignition key IK. Can do. According to the present embodiment, the shutter 22 can be ignited regardless of whether the rotor 21 is in the off position or the locked position when the locking by the locking means (engaging protrusion 23a) is released. Since it contacts the side surface IKb of the key IK, it is possible to reliably prevent the shutter 22 from contacting the key mountain IKa of the ignition key IK and causing damage or the like.

  The shutter 22 has a first portion 22c that contacts the side surface IKb of the ignition key IK when the rotor 21 is in the off position, and a second portion that contacts the side surface IKb of the ignition key IK when the rotor 21 is in the locked position. Since the portion 22d is formed, the shutter 22 is configured with a simple configuration without adding separate components (by making the first portion 22c and the second portion 22d in the shape of the shutter 22). It is possible to reliably avoid the occurrence of scratches and the like due to contact with the key pile IKa of the ignition key IK.

  In the present embodiment, the first part 22c and the second part 22d of the shutter 22 are set so as to come into surface contact with the side surface IKb of the ignition key IK. It is also possible to suppress the occurrence of scratches and the like due to the contact with. Furthermore, you may comprise so that the said 1st site | part 22c, the 2nd site | part 22d, and its vicinity may perform an abrasion-proof process etc.

  Although the present embodiment has been described above, the present invention is not limited to these, and instead of the locking means for locking and maintaining the shutter closed state and the unlocking means for releasing the lock, other configurations ( It may be a non-magnet or the like. In the first and second embodiments, the specific position is the lock position, but the off position may be the specific position. Furthermore, in each of the above embodiments, the shutter rotates between the closed position and the open position, but slides linearly between the closed position and the open position. It may be a thing. In addition to a cylinder lock protection device for a two-wheeled vehicle, the present invention can be applied to a cylinder lock protection device for other vehicles such as a four-wheeled vehicle, a buggy, and a snow vehicle.

  However, in the third embodiment, when the rotor 21 is in the off position, it is possible to unlock the engagement convex portion 23a (locking means) by operating the operation element 27. Instead of this, when the rotor 21 is rotated to the off position, the shutter 22 may be automatically moved from the open position to the closed position (without operation by the operation element 27 or the like). Accordingly, when the rotor 21 is rotated to the off position, the shutter 22 can be moved from the open position to the closed position. Therefore, when the rotor 21 is rotated to the off position, the shutter 22 is allowed to move from the open position to the closed position. In this state, if the ignition key IK is removed, the shutter 22 can be automatically set to the closed position, and the troublesome closing operation of the shutter 22 can be made unnecessary, so that the crime prevention effect can be further improved.

  A cylinder lock which is always urged to the closed position by the urging means is locked at the open position by the locking means, and when the rotor rotates to a specific position, the release means releases the lock by the locking means. As long as it is a protective device, the present invention can also be applied to devices having different external shapes or to which other functions are added.

DESCRIPTION OF SYMBOLS 1 Housing 2 Rotor 2a Key hole 3 Shutter 4 Coil spring 5 Sealing material 6 Locking means 7 Interlocking part (release means)
8 Actuator (Release means)
9 Coil spring 10 Protruding shape 11 Convex part 12 Torsion spring (biasing means)
13 Housing 14 Rotor 14a Key hole 14b Interlocking part 15 Shutter 16 Vertical slider (operating part)
16a Engaging convex part (locking means)
17 Spring 18 Spring 19 Torsion spring 20 Housing 21 Rotor 21a Key hole 22 Shutter 22c First part 22d Second part 23 Left and right slider (actuating part)
23a Engaging projection (locking means)
23b Vertical slider 24 Spring 25 Spring 26 Torsion spring (biasing means)
27 Operating element 28 Spring 29 Moderation spring IK Ignition key MK Magnet key (unlocking means)
Ma magnet (locking means)
S Cylinder body α Contact part β Cam shape

Claims (11)

A housing provided above the rotor in which a key hole for inserting and removing the ignition key is formed;
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;
Locking means for locking the shutter in the closed position;
Unlocking means for releasing the lock by the locking means and moving the shutter from the closed position to the open position;
In a cylinder lock protection device that can protect the cylinder lock,
Biasing means for constantly biasing the shutter to the closed position;
Locking means for locking the shutter biased by the biasing means in an open position;
Releasing means for releasing the locking by the locking means when the rotor is rotated to a specific position;
A cylinder lock protection device comprising:   The rotor is rotatable between an on position for starting an engine provided in the vehicle, an off position for stopping the engine, and a lock position for locking a handlebar provided in the vehicle, and the specific position. The cylinder lock protection device according to claim 1, wherein the lock position is the lock position.   3. The cylinder lock protection device according to claim 2, further comprising an operating element that can be unlocked by the locking means by operation when the rotor is in the off position.   When the rotor is in the on position, there is provided a restricting means for restricting the shutter to reach the closed position even when the locking means is unlocked by the operator. The cylinder lock protection device according to claim 3. The release means is
An interlocking portion extending from the rotor and rotatable with the rotor;
When the rotor reaches a specific position, it is pressed by the interlocking portion to move the locking means, and an operating portion that unlocks the locking means,
The cylinder lock protection device according to any one of claims 1 to 4, further comprising: A housing provided above the rotor in which a key hole for inserting and removing the ignition key is formed;
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;
Locking means for locking the shutter in the closed position;
Unlocking means for releasing the lock by the locking means and moving the shutter from the closed position to the open position;
In a cylinder lock protection device that can protect the cylinder lock,
Biasing means for constantly biasing the shutter to the closed position;
Locking means for locking the shutter biased by the biasing means in an open position;
Releasing means for unlocking by the locking means;
And the rotor is rotatable between an on position where the engine provided in the vehicle is started, an off position where the engine is stopped, and a lock position where the handle bar provided in the vehicle is locked. The cylinder lock protection device according to claim 1, wherein the shutter can be moved from the open position to the closed position when the shutter is turned to the off position.   The cylinder lock protection device according to claim 6, further comprising an operating element that can be unlocked by the locking means by an operation when the rotor is in an off position.   When the rotor is in the on position, there is provided a restricting means for restricting the shutter to reach the closed position even when the locking means is unlocked by the operator. The cylinder lock protection device according to claim 7. The release means is
An interlocking portion extending from the rotor and rotatable with the rotor;
When the rotor reaches a specific position, it is pressed by the interlocking portion to move the locking means, and an operating portion that unlocks the locking means,
The cylinder lock protection device according to any one of claims 6 to 8, wherein the protection device for the cylinder lock is provided.   The shutter is in contact with a side surface of the ignition key regardless of whether the rotor is in an off position or a locked position when the locking by the locking means is released. Item 10. The cylinder lock protection device according to any one of Items 2 to 9.   The shutter is formed with a first portion that contacts the side surface of the ignition key when the rotor is in the off position and a second portion that contacts the side surface of the ignition key when the rotor is in the locked position. The protective device for a cylinder lock according to claim 10.

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