JP5366203B2 - Cylinder lock protector - Google Patents

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 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 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.

  In order to avoid such a problem, the applicant of the present invention has a biasing means for constantly biasing the shutter to the closed position, a locking means for locking the shutter biased by the biasing means at the open position, And a release means for releasing the lock by the means, and the release of the lock by the lock means by the release means to move the shutter to the closed position by the biasing force of the biasing means. As a result, the shutter closing operation can be performed by the urging force of the urging means, and the operability is expected to be further improved.

  However, when trying to close the shutter with the urging force of the urging means, when the shutter contacts the ignition key inserted into the rotor in the process of reaching the closing position with the urging force of the urging means, There is a possibility that the shutter may come into contact with the key crest of the ignition key. In this case, there is a problem that scratches or the like are given. Further, even when an attempt is made to pull out the ignition key from the rotor in a state where the shutter is in contact with the key crest of the ignition key, there is a possibility that scratches or the like may be given.

  The present invention has been made in view of such circumstances, and the operability can be improved by performing the closing operation of the shutter by the urging force of the urging means, and in the process of moving the shutter to the closing position, An object of the present invention is to provide a protection device for a cylinder lock that can suppress the application of the above.

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. The shutter is unlocked by the lock means. Lock can, said is adapted to abut against the side surface of the ignition key, and the rotor is on position to start the engine on which the vehicle is equipped, OFF position to stop the engine, and for locking the handlebar vehicle comprises The shutter can be rotated between positions, and the shutter can be turned on even when the rotor is in the off position or the locked position when the locking by the locking means is released. It abuts on the side of the key .

According to a second aspect of the invention, the protective device of the cylinder lock according to claim 1, wherein the shutter includes a first portion in contact with the side surface of the ignition key when said rotor is in the off position, the rotor is locked A second portion that abuts against a side surface of the ignition key when in position is formed.

According to a third aspect of the present invention, in the cylinder lock protection device according to the first or second aspect of the present invention, the cylinder lock protection device includes an operator that can be unlocked by the locking means by a driver's manual operation. It is characterized by that.

  According to the first aspect of the present invention, the urging means for constantly urging the shutter to the closed position, the locking means for locking the shutter urged by the urging means at the open position, and the engagement by the locking means. The shutter is configured to abut against the side surface of the ignition key when unlocked by the locking means, so that the shutter is closed by the biasing force of the biasing means. In addition, the operability can be improved, and it is possible to suppress scratches and the like from being imparted in the process of moving the shutter to the closed position.

Further , since the shutter is in contact with the side surface of the ignition key regardless of whether the rotor is in the off position or the locked position when the locking by the locking means is released, the shutter is in contact with the ignition key. It is possible to reliably avoid the occurrence of scratches or the like due to contact with the key pile.

According to the invention of claim 2 , 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.

According to the third aspect of the present invention, since the operating element that can be unlocked by the locking means by manual operation of the driver is provided, the shutter can be set to the closed position at an arbitrary timing.

The external view which shows the protection apparatus of the cylinder lock which concerns on embodiment of this invention The top view which shows the internal structure in the protection device of the cylinder lock 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 VV sectional view in FIG. Sectional view taken along line VI-VI in FIG. VII-VII line sectional view in FIG. 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 line 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)

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. 7, the housing 1, the shutter 3, the magnet Ma (see FIG. 3) as the locking means, the unlocking means comprising the magnet key MK (see FIG. 4), and the torsion spring as the biasing means 9, an engaging convex portion 6 a as a locking means, a releasing means having an interlocking portion 2 b and a left and right slider 6 as an operating portion, and an operating element 10.

  The housing 1 is provided above the rotor 2 and accommodates various components other than the above-described magnet key MK and can accommodate an upper end portion of a cylinder body (not shown) constituting a cylinder lock. ing. A rotor 2 having a plurality of tumblers is disposed in the cylinder body, and a key hole 2a is formed in the rotor 2 so that the ignition key IK can be inserted / removed (removed / removed). .

  The rotor 2 can be rotated with the ignition key IK inserted into the key hole 2a. The rotor 2 is turned on (see FIG. 14) for starting the engine, and turned off for stopping the engine. It can be rotated between a position (see FIG. 12) and a lock position (see FIG. 10) for locking a handlebar included in the vehicle. 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, the left side in the figure is rotated to enable the rotation operation to the lock position. ing.

  When the rotor 2 moves to this lock position, a lock bar (not shown) in the cylinder body protrudes, and the lock bar is in a lock hole (not shown) formed on the rotation shaft of the handle bar. The handlebar is locked by being inserted and locked. Reference numeral 12 in the figure denotes a moderation imparting spring for imparting moderation associated with the rotational operation of the rotor 2, and the tip of the moderation imparting spring 12 is configured to enter a recess 2 d formed in the rotor 2. Has been.

  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 13 formed on the housing 1 via a sealing material 5 such as an O-ring, and is rotatable about the convex portion 13. The shutter 3 is in the position shown in FIG. 2 in the open position, and opens the key hole 2a, and is in the position shown in FIG. 11 in the closed position, and covers and closes the key hole 2a.

  As shown in FIG. 2, the shutter 3 is formed with a cam shape β and an abutting portion α, and a portion connected to the cam shape β is engaged with the engaging convex portion 6 a and the shutter 3. An engaging portion 3a that can be locked in the open position is formed. The engaging convex portion 6a constitutes a locking means for locking the shutter 3 biased by a torsion spring 9 as a biasing means at an open position, and is formed to project integrally with the left and right sliders 6. .

  The torsion spring 9 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. Instead of the torsion spring 12, other urging means for urging the shutter 3 to the closed position at all times may be used.

  As shown in FIGS. 3 (a) and 3 (b), the magnets Ma as locking means are respectively disposed in the recesses 13a formed in a plurality (four in the present embodiment) in the protrusions 13 of the housing 1. It is biased upward by the coil spring 4 and can be fitted into the recess 3e of the shutter 3 at the closed position to lock the shutter 3. That is, when the shutter 3 is in the open position, the magnet Ma is pushed by the back side of the shutter 3 and is contained in the recess 13a, while when it is in the closed position, the magnet Ma protrudes upward and is formed in the shutter 3. It can be engaged with the recess 3e. 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 3b 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 3b in the rotation direction and can be rotated.

  Thus, when the magnet key MK is brought into contact with the fitting portion 3b 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 engaging portion 3a of the shutter 3 is locked to the engaging convex portion 6a.

  As shown in FIG. 2, the left / right slider 6 (actuating portion) is housed in a recess formed in the housing 1 and is slidable in the left-right direction in FIG. Always energized to the right. Further, the left and right slider 6 is formed with a vertical slider 6b that is slidable in the vertical direction in the figure, and the vertical slider 6b is always urged downward in the figure by a spring 8. The front end side protrudes from the side surface of the left and right slider 6.

  The interlocking portion 2b is formed of a portion that is integrally extended from the rotor 2 and is rotatable with the rotor 2. The interlocking portion 2b is pressed while inserting the ignition key IK into the key hole 2a, and is directly moved to the locked position. In the process of rotating, as shown in FIG. 8 (b), it is configured to contact and press against the tip of the upper and lower sliders 6b. That is, when the rotor 2 reaches the locked position, the interlocking portion 2b presses the upper and lower sliders 6b, whereby the entire left and right sliders 6 can be moved to the left in the figure against the urging force of the springs 7. It is.

  Along with this, the engaging convex portion 6a moves to the left side in the drawing and is separated from the engaging portion 3a, and the shutter 3 is unlocked. As shown in FIGS. 9 and 10, the shutter 3 that has been unlocked moves toward the closed position in the process in which the rotor 2 reaches the locked position, and the ignition key IK with the tip inserted through the key hole 2 a. It will abut. Then, when the ignition key IK is extracted from the key hole 2a, the shutter 3 reaches the closed position by the biasing force of the torsion spring 9, and covers the key hole 2a and closes the key hole 2a, as shown in FIG. The recess 3e is fitted and locked. The left and right sliders 6 that are no longer applied with the pressing force from the interlocking portion 2 b are returned to the initial state by the urging force of the spring 7.

  On the other hand, in order to rotate the shutter 3 to the open position, as described above, the magnet key MK is brought into contact with the fitting portion 3b, and the magnets Mb having different poles are opposed to the magnet Ma. Unlock (shutter 3 lock). 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. 16 to 17 is obtained. The shutter 3 is locked by contact.

  When the shutter 3 reaches the open position, as shown in FIG. 17A, the key hole 2a faces the outside. Thus, if the ignition key IK is inserted into the key hole 21a and rotated, the interlocking portion 2b 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). In the process of rotating the rotor 2 from the locked position to the off position, as shown in FIG. 16, the cam shape β pushes the engaging convex portion 6a to the left side and moves the left and right sliders 6 in the same direction. When reaching the off position, the engaging portion 3a engages with the engaging convex portion 6a as shown in FIG.

  When the rotor 2 is in the off position, the operating element 10 can operate the left and right sliders 6 as operating parts to release the locking of the shutter 3 by the engaging projections 6a as locking means. It has been done. Specifically, when the operating element 10 is operated by moving it to the left side in the figure against the urging force of the spring 11 (see FIG. 5), as shown in FIG. Since the slider 6 is moved in the same direction, the engaging convex portion 6a is separated from the engaging portion 3a to be disengaged, and the shutter 3 is moved to the closed position as shown in FIG. Thus, the shutter 3 can be set to the closed position at an arbitrary timing by operating the operation element 10 regardless of the position of the rotor 2.

  In the present embodiment, when the rotor 2 is in the ON position, the shutter 3 is locked even if the locking operation of the engaging projection 6a (locking means) is released by the operation of the operation element 10. A restricting means for restricting reaching the closed position is provided. This restricting means is composed of a protrusion 2c formed integrally with the rotor 2, and as shown in FIGS. 14 and 15, when the rotor 2 is in the on position, it contacts the contact portion α of the shutter 3. Thus, even when the engagement by the engagement convex portion 6a is released, the shutter 3 is locked in the open position. This prevents the shutter 3 from moving from the open position toward the closed position and interfering with the ignition key IK even if the operating element 10 is erroneously operated when the rotor 2 is in the on position. it can.

  Here, in the present embodiment, the shutter 3 is configured to abut on the side surface IKb of the ignition key IK when the locking by the engaging convex portion 6a (locking means) is released. That is, as shown in FIGS. 12 and 10, the shutter 3 is when the rotor 2 is in either the off position or the locked position when the engagement by the engagement convex portion 6a (the engagement means) is released. However, it is configured to contact the side surface IKb of the ignition key IK. More specifically, as shown in FIG. 12, the shutter 3 according to this embodiment includes a first portion 3c that contacts the side surface IKb of the ignition key IK when the rotor 2 is in the off position, and FIG. Thus, the second portion 3d that contacts the side surface IKb of the ignition key IK when the rotor 2 is in the locked position is formed.

  In FIG. 12, the ignition key IK is inserted into the key hole 2a of the rotor 2 and the shutter 3 is moved from the open position to the closed position by operating the operation element 10 when the rotor 2 is in the off position. FIG. 10 shows a state in which the ignition key IK is inserted into the key hole 2a of the rotor 2, and the torsion spring 9 (biasing force) is turned by rotating the lock key to the lock position. The shutter 3 is moved from the open position toward the closed position by the urging force of the means.

  Thus, in the process of extracting the ignition key IK from the key hole 2a, the side surface IKb of the ignition key IK slides while being in contact with the shutter 3, and the ignition key IK is extracted to thereby set the shutter 3 in the closed position. Can do. According to the present embodiment, the shutter 3 has an ignition function when the rotor 2 is in either the off position or the locked position when the locking by the locking means (engagement convex portion 6a) is released. Since it contacts the side surface IKb of the key IK, it is possible to reliably prevent the shutter 3 from coming into contact with the key crest IKa of the ignition key IK and causing damage or the like.

  The shutter 3 has a first portion 3c that contacts the side surface IKb of the ignition key IK when the rotor 2 is in the off position, and a second portion that contacts the side surface IKb of the ignition key IK when the rotor 2 is in the locked position. Since the part 3d is formed, the shutter 3 can be configured with a simple configuration without adding a separate component (by making the first part 3c and the second part 3d built in the shape of the shutter 3). 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, since the first part 3c and the second part 3d of the shutter 3 are set in contact with the side surface IKb of the ignition key IK while being in surface contact, the shutter 3 and the side surface IKb 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 3c, the 2nd site | part 3d, and its vicinity may perform an abrasion-proof process etc.

  According to the above embodiment, the shutter 3 is configured to abut on the side surface IKb of the ignition key IK when the engagement protrusion 6a (locking means) is unlocked. The operability can be improved by performing the closing operation of the shutter 3 with the urging force of the urging means), and it is possible to suppress scratches and the like from being imparted in the process of moving the shutter 3 to the closing position.

  Although the present embodiment has been described above, the present invention is not limited to this, and the shutter 3 hits the side surface IKb of the ignition key IK when unlocked by the engaging convex portion 6a (locking means). For example, when the rotor is in another position (position where the ignition key IK can be inserted / removed) and the lock by the locking means is released, the shutter is, for example, an ignition key. You may comprise so that it may contact | abut to the side surface IKb of IK. That is, as long as the shutter 3 is configured to contact the side surface IKb of the ignition key IK when the locking by the locking means is released, the position of the rotor, the locking means, and the like may be in other forms. It is.

  Further, instead of the locking means that locks and maintains the closed state of the shutter and the unlocking means that releases the lock, it may be of other configuration (such as not using a magnet). Furthermore, in the above embodiment, the shutter rotates between the closed position and the open position. However, the shutter slides linearly between the closed position and the open position. There may be. 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.

And a biasing means for constantly biasing the shutter to the closed position, a locking means for locking the shutter biased by the biasing means at the open position, and a release means for releasing the locking by the locking means. Is configured to abut against the side surface of the ignition key when unlocked by the locking means , and the rotor is in an on position for starting the engine provided in the vehicle, an off position for stopping the engine, and The vehicle can be rotated between lock positions for locking the handlebars of the vehicle, and the shutter is in either the off position or the lock position when the shutter is released by the locking means. even when, if the protection device of the cylinder lock which abuts the side surface of the ignition key, be applied to such as those exterior shape is added different or other functions Door can be.

DESCRIPTION OF SYMBOLS 1 Housing 2 Rotor 2a Key hole 2b Interlocking part (release means)
3 Shutter 3a Engagement part 3c 1st part 3d 2nd part 4 Coil spring 5 Sealing material 6 Left and right slider (release means)
6a Engaging projection (locking means)
7 Spring 8 Spring 9 Torsion spring (biasing means)
10 Operating Element 11 Spring 12 Moderation Providing Spring 13 Convex IK Ignition Key MK Magnet Key (Unlocking Means)
Ma magnet (locking means)
α Contact part β Cam shape

Claims (3)

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;
The shutter is configured to abut against a side surface of the ignition key when unlocked by the locking means , and the rotor is in an on position for starting an engine included in the vehicle. The shutter can be turned between an off position for stopping the engine and a lock position for locking a handlebar provided in the vehicle, and the shutter is turned off when the locking by the locking means is released. A cylinder lock protection device, which is in contact with a side surface of the ignition key regardless of the position or the lock position . 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 protection device for a cylinder lock according to claim 1 . The cylinder lock protection device according to claim 1 or 2 , further comprising an operating element that can be unlocked by the locking means by a driver's manual operation.

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