JP2009228263A - Cylinder lock protection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cylinder lock protection device capable of being wholly miniaturized while securing a sliding range of a shutter. <P>SOLUTION: This cylinder lock protection device comprises: the shutter 2 which can slide almost linearly in a housing 1, which can move between a closing position to close an insertion hole 1ba and an opening position to open it, and which opens and closes a keyhole (a); a coil spring S1 for urging the shutter 2 to the opening position from the closing one; an operating knob 3 which is formed in such a shape as to protrude from the shutter 2, and which enables the shutter 2 to be operated from the opening position to the closing one; a locking mechanism 6 for locking the shutter 2 in the closing position; and a magnet key MK capable of releasing the state of locking the shutter 2 by the locking mechanism 6. The operating knob 3 is formed in the shutter 2 in such a shape as to protrude from one side surface 2a which is elongated in the sliding direction of the shutter 2, and the locking mechanism 6 is arranged on the side of the other side surface 2b. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

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

  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 protection device includes a shutter that is slidable from a closed position where the key hole is closed to an open position where the key hole is open, an operation knob formed on the shutter and operable, and the shutter in the closed position. And a magnetic lock that locks the key hole by closing the key hole.

Thus, in the protection device, the operation knob is formed so as to protrude upward, and the shutter can be operated from the open position to the closed position by pushing it in, and the operation knob is orthogonal to the sliding direction of the shutter. It is formed on the end face. Further, the magnet lock is formed on the side surface extending in the sliding direction of the shutter so that the shutter in the closed position can be locked and locked.
JP-A-11-44132

  However, in the above conventional cylinder lock protection device, the operation knob is formed on the end surface orthogonal to the sliding direction of the shutter, and the magnetic lock is formed on the side surface extending in the sliding direction of the shutter. Therefore, there was a problem that the whole would be enlarged. However, recently, it has been required to reduce the size of the entire protection device while ensuring the sliding range of the shutter.

  The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a cylinder lock protection device capable of downsizing the entire device while ensuring a sliding range of the shutter.

  The invention according to claim 1 is a housing provided above the key hole of the cylinder lock, an insertion hole formed substantially at the center of the housing, through which the ignition key can be inserted, and a substantially straight line in the housing. A shutter that opens and closes the key hole, and a shutter that opens and closes the key hole, and a shutter that opens the shutter from the closed position. An urging means for urging the shutter, an operation knob formed to project from the shutter, and capable of operating the shutter from the open position to the closed position against the urging force of the urging means, and the shutter in the closed position. A cylinder lock protection device comprising a lock mechanism for locking and an opening means for releasing the lock by the lock mechanism, wherein the shutter extends in the sliding direction. Together with the operation knob is protruded from one side that, wherein the locking mechanism is disposed on the other side surface side.

  According to a second aspect of the present invention, in the protection device for a cylinder lock according to the first aspect, the lock mechanism releases the lock by the lock means and the lock means that locks the shutter at the closed position. And locking means.

  According to a third aspect of the present invention, in the protective device for the cylinder lock according to the first or second aspect, a concave portion is formed on the surface of the housing, and the operation knob is formed in the concave portion so as to be operated. It is characterized by that.

  According to a fourth aspect of the present invention, in the cylinder lock protection device according to any one of the first to third aspects, the shutter has a notch having a shape corresponding to the insertion hole and is in an open position. The notch is sometimes configured to match the insertion hole.

  According to the first aspect of the present invention, the operation knob is formed to protrude from one side surface extending in the sliding direction of the shutter, and the lock mechanism is disposed on the other side surface. And the lock mechanism are formed, and the entire apparatus can be reduced in size while ensuring the sliding range of the shutter.

  According to the invention of claim 2, the locking mechanism has the locking means for locking with the shutter in the closed position, and the locking means for releasing the locking by the locking means. The force required for locking by and the force required for releasing the locking by the locking means can be set separately, and each of these can be set to an appropriate force.

  According to the invention of claim 3, since the concave portion is formed on the surface of the housing and the operation knob is formed to project within the concave portion and can be operated, the projection of the operation knob can be suppressed, It is possible to suppress the operation knob from interfering with the driver and other components of the vehicle.

  According to the invention of claim 4, since the notch having a shape corresponding to the insertion hole is formed and the notch is configured to match the insertion hole when in the open position, the shutter is further improved. Miniaturization can be achieved.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The cylinder lock protection device according to the present embodiment is provided above the key hole of the cylinder lock provided in the two-wheeled vehicle, and can protect the cylinder lock by allowing the key hole to be opened and closed from the outside. As shown in FIG. 6, a housing 1 composed of a case 1a and a cover 1b, a shutter 2, an operation knob 3, a locking mechanism 6 having a locking means 4 and a locking means 5, and a biasing means. And a magnet key MK (see FIG. 6) as an opening means.

  The case 1a is composed of a die-cast molded product, and an insertion hole 1aa through which a vehicle cylinder lock can be inserted so that the key hole a can be faced upward is formed substantially at the center (see FIGS. 3 to 5). In the vicinity thereof, a magnetic lock projection 1ab is formed (see FIG. 6). The convex portion 1ab for the magnet lock has a plurality of accommodation holes 1ac (four in the present embodiment) for accommodating the magnet M via the spring S3 on the tip surface thereof, and the annular shape of the locking means 5 on the outer peripheral surface. It is comprised so that the part 5a can be fitted so that rotation is possible. 6 indicates an O-ring that seals between the annular portion 5a of the lock means 5 and the magnet lock projection 1ab.

  The cover 1b is made of a predetermined die-cast product, and covers the upper surface side of the case 1a and accommodates the components of the protection device for the cylinder lock such as the shutter 2 in an internal space formed between the case 1a and the cover 1b. The insertion hole 1ba is formed at a position corresponding to the insertion hole 1aa and allows an ignition key (not shown) to be inserted into the key hole a, the hole 1bb through which the fitting portion 5b of the lock means 5 can be inserted, and an operation knob. A recess 7 is formed on the surface of the projection 7.

  As shown in FIGS. 3 to 5, the shutter 2 is slidable substantially linearly with respect to the left-right direction in the figure, and the shutter 2 closes the insertion hole 1 ba (position shown in FIG. 3) and the shutter 2. The key hole a is opened and closed by being movable between an opening position (a position shown in FIG. 5) for opening the insertion hole 1ba. Further, the shutter 2 is integrally formed with an operation knob 3 on one side surface 2a (lower surface in FIGS. 3 to 5) extending in the sliding direction, and the other side surface 2b opposite to the operation knob 3 (in the same drawing). A locking recess 2ba that can be locked by the locking means 4 is formed on the upper surface) side. Further, a coil spring S1 (biasing means) for biasing the shutter 2 from the closed position to the open position is disposed on the right end side of the shutter 2 in FIG.

  The operation knob 3 protrudes from one side of the shutter 2 and can operate the shutter 2 from the open position to the closed position against the biasing force of the coil spring S1 (biasing means). As shown, the projection is formed in a recess 7 formed on the surface of the housing 1 and can be operated. Therefore, the operation knob 3 is formed to project within the recess 7 and can be operated (in other words, the operation range of the operation knob 3 is within the recess 7). Therefore, as shown in FIG. The protrusion of the knob 3 from the surface of the housing 1 can be suppressed, and the operation knob 3 can be prevented from interfering with the driver and other components of the vehicle. In addition, according to the present embodiment, since the operation knob 3 is formed so as to protrude in the recess 7, it can be avoided that the operation knob 3 protrudes to the side of the housing 1, and the driver And interference with other components of the vehicle can be suppressed.

  The operation knob 3 is configured to be close to (or abut on) the wall surface 7a formed by the recess 7 when the shutter 2 is in the closed position (when it is in the position indicated by the solid line in FIG. 1). Has been. Therefore, it is difficult to operate the operation knob 7 when the shutter 2 is in the closed position, and it is possible to prevent a third party from operating the operation knob 7 illegally using a tool or the like. Can be further increased.

  The lock mechanism 6 is for preventing a third party from operating the operation knob 3 from the closed position to the open position by locking the shutter 2 at the closed position. Yes, as described above, it has the locking means 4 and the locking means 5. These locking means 4 and locking means 5 are both formed on the other side surface 2b side (upper surface side in FIGS. 3 to 5) of the shutter 2, and the operation knob 3 and the lock mechanism 6 are respectively sandwiched by the shutter 2. Is formed.

  The locking means 4 is for entering the locking recess 2ba of the shutter 2 at the closed position and locking the shutter 2. The coil spring S2 always keeps the shutter 2 side (lower in FIGS. 3 to 5). ). More specifically, a locking surface 4a and a tapered surface 4b are formed on the protruding end side of the locking means 4, and when the shutter 2 is in the closed position, as shown in FIG. 4a is engaged with the locking recess 2ba to restrict the sliding of the shutter 2 to the open position, and in the process where the shutter 2 moves from the open position to the closed position, the tapered surface 4b contacts the tapered surface 2bb of the shutter 2. The locking means 4 is brought into contact and pushed upward to allow the shutter 2 to slide to the closed position.

  The locking means 5 is for maintaining or releasing the locking by the locking means 4 and is made of a non-magnetic material. Thus, when the lock means 5 is fitted to the magnet lock convex portion 1ab and pivoted about this, the convex portion 5a formed integrally with the lock means 5 is also pivoted so that the locking means 4 is moved. It can be moved upward against the urging force of the coil spring S2.

  The lock means 5 is formed with a fitting portion 5b on the front surface side to which a magnet key MK (opening means) can be fitted, and on the back surface side, a magnet M disposed at the tip of the magnet lock convex portion 1ab. A plurality of fitting holes 5c that can be fitted and locked are formed. When the locking means 5 is assembled on the magnet lock projection 1ab, the fitting hole 5c is configured to fit and lock the magnet M biased above the coil spring S1.

  The magnet key MK releases the lock by the lock mechanism 6 (specifically, the lock by the lock means 4) and enables the shutter 2 to move from the closed position to the open position. For example, the magnet key MK can hold an ignition key of a motorcycle. It consists of a part integrally formed with the part (resin part). Further, a plurality of magnets m are embedded at positions corresponding to the magnets M at the tips of the magnet keys MK, and the magnets m are in a state in which the magnet keys MK are fitted to the fitting portions 5b of the lock means 5. These are formed at positions corresponding to the magnets M, and are arranged so that poles different from the poles on the upper surface side of the magnets M face each other.

  Accordingly, when the magnet key MK is inserted into the fitting portion 5b in a state where the lock unit 5 (shutter 2) is locked, the magnet M is moved to the coil spring S3 by the repulsive force between the magnet M and the magnet m in the magnet key MK. It descends against the urging force of and the lock is released. If the magnet key MK is rotated in this state, the locking means 5 is rotated by the fitting of the fitting portion 5b, and the convex portion 5a is also rotated. As shown in FIG. It can move upward against the urging force of the spring S2. Thus, the shutter 2 released from the locking by the locking means 4 is automatically slid from the closed position to the open position by the urging force of the coil spring S1.

  Furthermore, in this embodiment, the shutter 2 is formed with a notch 2c having a shape corresponding to the insertion holes 1ba and 1aa as shown in FIGS. 3 to 5 and is in the open position as shown in FIG. The notch 2c is configured to match the insertion holes 1ba and 1aa. Therefore, the stroke from the closed position to the open position of the shutter 2 can be shortened as compared with the case where the shutter is rectangular, and further downsizing of the entire cylinder lock protection device can be achieved.

Next, the operation of the cylinder lock protection device will be described.
First, when the shutter 2 is in the open position, the operation knob 3 is picked and operated to slide the shutter 2 against the urging force of the coil spring S1. In this sliding process, the taper surface 2bb of the shutter 2 and the taper surface 4b of the locking means 4 come into contact with each other, so that the locking means 4 moves upward against the biasing force of the coil spring S2 by the action of the cam. Then, by further sliding of the shutter 2, the locking means 4 enters the locking recess 2ba and locks the shutter 2.

  As a result, the shutter 2 is locked at the closed position and locked by the lock mechanism 5, so that it is possible to prevent mischief or the like with respect to the key hole a by a third party. On the other hand, when the shutter 2 is in the closed position, the locking of the locking means 5 by the magnet M is released by inserting the magnet key MK into the fitting portion 5b, and if the magnet key MK is rotated as it is, the convex portion 5a. Moves the locking means 4 and the locking is released. Thereby, the shutter 2 slides to the open position by the urging force of the coil spring S1.

  According to the above embodiment, the operation knob 3 is formed to project from the one side surface 2a extending in the sliding direction of the shutter 2, and the locking mechanism 6 (the locking means 4 and the locking means 5) is provided on the other side surface 2b side. Therefore, the operation knob 3 and the lock mechanism 6 are respectively formed with the shutter 2 interposed therebetween, and the entire cylinder lock protection device can be downsized while ensuring the sliding range of the shutter 2. it can.

  Further, the lock mechanism 6 includes a locking unit 4 that locks the shutter 2 in the closed position, and a lock unit 5 that releases the locking by the locking unit 4. The force required for locking (the urging force of the coil spring S2) and the force required for releasing the locking by the locking means 5 (the pressing force of the O-ring b) can be set separately. Can be power.

  As described above, the protection device for the cylinder lock according to the present embodiment has been described. However, the present invention is not limited to this. For example, the housing is not provided with a recess, and the operation knob can slide on the surface of the housing. It may be a thing. Moreover, in this embodiment, the magnet lock which latches the magnet M is used as the lock means 5, but it may be replaced with another form of lock means.

  As long as the shutter is a cylinder lock protection device having an operation knob projecting from one side extending in the sliding direction and a lock mechanism disposed on the other side, the shutter has a different external shape or other The present invention can also be applied to those with functions added.

The top view which shows the protection apparatus of the cylinder lock which concerns on embodiment of this invention. Front view showing the cylinder lock protection device The top view which shows the state which removed the cover, and is a schematic diagram (the shutter is in the closed position and locked by the locking means) showing the protection device for the cylinder lock The top view which shows the state which removed the cover, and is a schematic diagram (state where the shutter is in the closed position and the lock by the lock means is released) showing the protection device of the cylinder lock The top view which shows the state which removed the cover, and is a schematic diagram (shutter is an open position) showing the protection device for the cylinder lock Sectional view taken along line VI-VI in FIG. 1 (the right half is a front view)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Housing 1a ... Case 1b ... Cover 1ba ... Insertion hole 2 ... Shutter 3 ... Operation knob 4 ... Locking means 5 ... Locking means 6 ... Lock mechanism S1 ... Coil spring (biasing means)
a ... Key hole MK ... Magnetic key (opening means)

Claims (4)

A housing provided above the key hole of the cylinder lock;
An insertion hole formed substantially in the center of the housing, through which an ignition key can be inserted into the key hole;
A shutter that is slidable substantially linearly within the housing, is movable between a closed position that closes the insertion hole and an open position that opens the insertion hole, and opens and closes the key hole;
Biasing means for biasing the shutter from the closed position to the open position;
An operation knob formed protruding from the shutter and capable of operating the shutter from the open position to the closed position against the biasing force of the biasing means;
A lock mechanism for locking the shutter in the closed position;
An opening means capable of releasing the lock by the lock mechanism;
A cylinder lock protection device comprising:
The cylinder lock protection device according to claim 1, wherein the shutter has the operation knob projecting from one side surface extending in a sliding direction, and the lock mechanism is disposed on the other side surface.   2. The cylinder lock according to claim 1, wherein the locking mechanism includes locking means for locking with the shutter in the closed position, and locking means for releasing locking by the locking means. Protective device.   3. The protection device for a cylinder lock according to claim 1, wherein a concave portion is formed on the surface of the housing, and the operation knob projects from the concave portion to be operable.   4. The shutter according to claim 1, wherein a notch having a shape corresponding to the insertion hole is formed, and the notch is configured to match the insertion hole when in the open position. The cylinder lock protection device described in 1.

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