JP4348105B2 - Key detection device for cylinder lock - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cylinder lock for detecting whether or not the key is inserted into a rotor that can be inserted into and removed from a cylinder lock of a vehicle or the like and can be rotated when the key is inserted. The present invention relates to a key detection apparatus.
[0002]
[Prior art]
Normally, a key cylinder of a motorcycle is provided with a rotor into which the key can be inserted and removed.For example, the key can be rotated only when the tumbler in the rotor matches the shape of the key, and a stop position for stopping the engine, It is configured to be able to arbitrarily rotate between an on position where the engine is started and a lock position where the steering is locked.
[0003]
By the way, the key can be inserted into and removed from the rotor only when the rotor is at the stop position and the lock position. Conventionally, whether or not the key is inserted when the rotor is at the stop position and the lock position. For example, Japanese Patent Application Laid-Open No. H10-228561 proposes a cylinder lock key detecting device for detecting the above. The key detection device disclosed in this document includes a key detection member that is disposed at a key insertion portion in the rotor and is slidable by inserting and removing the key, and a key detection member when the rotor is at the stop position or the lock position. And a switch that is turned on when the swinging member swings.
[0004]
Thereby, when the key is inserted when the rotor is in the stop position or the locked position, the swinging member swings and the switch is turned on, and it can be recognized that the key is inserted. When the switch is not on (that is, when it is off), it can be recognized that the key is not inserted in both positions.
[0005]
[Patent Document 1]
Japanese Utility Model Publication No. 6-73844 [0006]
[Problems to be solved by the invention]
However, in the above-described conventional cylinder lock key detection device, although it is possible to detect the insertion / extraction of a key with respect to a preset specific stop position and lock position, for example, when applied to a cylinder lock having a different stop position and lock position The sliding of the key detection member cannot be detected by the swing member, and there is a problem that a new key detection device that can be applied to the cylinder lock has to be prepared.
[0007]
That is, a single key detection device cannot be used for various cylinder locks having different stop positions and lock positions in the rotation range of the rotor. Therefore, there is a problem in that the parts management of each device becomes complicated and the manufacturing cost increases.
[0008]
The present invention has been made in view of such circumstances, and provides a key detection device for a cylinder lock that can be applied to various cylinder locks having different stop positions and lock positions and can reduce manufacturing costs. It is in.
[0009]
[Means for Solving the Problems]
The invention according to claim 1 is a cylinder for detecting whether or not the key is inserted into a rotor which is disposed in the cylinder lock and which can be inserted and removed, and which can be rotated when the key is inserted. In the lock key detecting device, a cover in which a key insertion hole is formed with respect to the rotor, a slide member that is slid by the insertion / extraction operation of the key with respect to the rotor via the insertion hole of the cover, and a slide of the slide member Detecting means for detecting the insertion state of the key with respect to the rotor by detection, and in the state where the key is not inserted into the insertion port, a part of the periphery of the slide member faces the insertion port. When a key is inserted at an arbitrary angle with respect to the insertion slot, the key presses the periphery of the insertion hole and slides. Member slide the, and, on the cylinder lock, between a restriction position for restricting the insertion to the rotor of the key covering the rotor upper, and an open position which opens the rotor top to permit insertion of the key A moving shutter is provided, and the shutter is configured so that the moving operation from the open position to the restricting position is not performed while the detecting means detects the insertion of the key. .
[0010]
According to a second aspect of the present invention, in the key detecting device for a cylinder lock according to the first aspect, a ring-shaped member made of a wear-resistant material is fitted into the periphery of the insertion hole.
[0012]
According to a third aspect of the present invention, in the key detecting device for the cylinder lock according to the first or second aspect , when the detecting means detects that the key has been removed from the rotor, the shutter is moved from the open position to the restricted position. It is characterized by comprising driving means for moving to a position.
[0013]
According to a fourth aspect of the present invention, in the key detection device for a cylinder lock according to any one of the first to third aspects, the detection means detects the slide of the slide member in a non-contact manner. It is characterized by being.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The key detection device for a cylinder lock according to the present embodiment is a state in which the key is inserted into a rotor that can be inserted into and removed from the cylinder lock of the two-wheeled vehicle and can be rotated with the key inserted. It is for detecting whether or not.
[0015]
As shown in FIGS. 1 and 2, the cylinder lock includes a rotor 1 that is disposed in the cylinder body 3 and has a key hole 1 a formed therein, a case 2 that holds an upper portion of the cylinder body 3, and the case 2. A cover 4 in which an insertion port 4a for a key K with respect to the rotor 1 is formed while being disposed at the top, an upper surface member 5 disposed on the periphery of the insertion port 4a on the upper surface of the cover 4, a shutter 6, and a slide member 7 and a Hall element 8 as a detecting means.
[0016]
The shutter 6 moves between a restriction position that covers the upper part of the rotor 1 and restricts the insertion of the key K into the rotor 1 (key hole 1a) and an open position that opens the upper part of the rotor 1 and allows the key to be inserted. It is connected to a first rotating member 10 or a second rotating member 11 that rotates about a rotating shaft 9 that is formed to protrude from the case 2.
[0017]
The first rotating member 10 is configured to be able to engage with the magnet 12 biased upward by the spring 13 when the shutter 6 is in the restricting position and to lock the shutter 6. Then, when the magnet key MK is inserted into the insertion hole 4b formed in the cover 4, the repulsive force of the magnet formed inside the magnet key MK pushes the magnet 12 downward to release the lock. 6 can be moved to the open position.
[0018]
The second rotating member 11 transmits the driving force of the motor M to the shutter 6 and moves the shutter 6 between a restricting position and an open position. The second rotating member 11 drives the motor M with a remote controller (not shown) and the like. 6 is configured to be remotely operated. That is, the cylinder lock applied to the present embodiment allows both manual operation of the shutter 6 by the first rotating member 10 and remote operation of the shutter 6 by the second rotating member 11.
[0019]
On the other hand, an annular substrate 14 is disposed in the upper surface member 5, and an antenna 15 for communicating with a transponder (not shown) is formed on the substrate 14. Communication is performed to allow only the engine start with the regular key K, and an LED 17 is formed to illuminate the key K insertion opening 4a. A hall element 8 for detecting a slide of a slide member 7 described later is disposed at a predetermined position of the substrate 14. The Hall element 8 is configured to change the output signal by the magnetism when the magnets are close to each other.
[0020]
Further, a slide member 7 as shown in FIG. 3 is disposed at a position covering the insertion port 4 a on the back side of the cover 4. The slide member 7 has an insertion hole 7c formed in the approximate center in plan view, and an arm portion 7b in which a magnet 7a is formed while projecting in the upper left direction in FIG. The slide member 7 is slidable in the vertical direction in the figure, and is always urged downward by a spring 16.
[0021]
In a normal state (a state in which the key K is not inserted into the insertion slot 4a), as shown in FIG. 4, a part S of the periphery of the insertion hole 7c formed in the slide member 7 faces the insertion slot 4a. So that it is positioned. At that time, as shown in FIG. 5, the magnet 7 a formed on the slide member 7 is in a state of being separated from the Hall element 8 disposed on the substrate 14.
[0022]
From this state, when the key K is inserted into the insertion hole 4a in order to insert the key K into the key hole 1a of the rotor 1, the side surface of the key K presses the peripheral edge S of the insertion hole 7c, and the slide member 7 is moved. It is made to slide upward in the figure while resisting the urging force of the spring 16. When the slide member 7 slides, as shown in FIG. 6, the insertion port 4a and the insertion hole 7c are matched, and the key K is inserted into the key hole 1a of the rotor 1 so that the rotor 1 can be rotated. At the same time, the magnet 7 a comes close to the Hall element 8.
[0023]
As described above, when the magnet 7a is close to the Hall element 8, the output voltage from the Hall element 8 is different, so that it is possible to detect that the slide member 7 has been slid. Can be detected. On the contrary, when the key K is extracted from the key hole 1a of the rotor 1, the slide member 7 slides to the normal state (that is, the state shown in FIGS. 4 and 5) by the urging force of the spring 16, so It can be detected that the magnet 7a is separated and the key K is extracted from the rotor 1.
[0024]
According to the above configuration, since it is possible to detect that the key is inserted at an arbitrary angle, it is possible to detect the insertion state of the key with respect to the rotor regardless of the stop position and the lock position. Can do. Therefore, the stop position and the lock position can be used for each of the plurality of cylinder locks set at various positions, and the manufacturing cost of the key detection device for the cylinder lock can be reduced. Further, since the slide of the slide member 7 is detected by a non-contact type detection means such as the Hall element 8, resistance when the slide member 7 slides is reduced as compared with the case using the contact type detection means. Thus, the key K can be inserted and removed more smoothly.
[0025]
Further, after detecting the insertion / removal state of the key K by the key detection device for the cylinder lock as described above, the detection information can be used as follows. For example, if the key K has not been removed from the rotor 1 after a certain period of time has elapsed after the motorcycle has stopped, it is recognized that the key K has been forgotten to be removed and a warning buzzer sounds for a predetermined time (about several tens of seconds) Can do.
[0026]
Further, while detecting that the key K is inserted into the rotor 1, the moving operation from the opening position of the shutter 6 to the restriction position can be prevented. In particular, when the shutter M can be moved using the motor M as in the present embodiment, the movement operation of the shutter 6 from the open position to the restriction position is performed while the insertion of the key K is detected. Therefore, in the state in which the key K is inserted into the rotor 1, the interference between the two due to the shutter 6 moving to the restriction position by the driving force of the motor M can be reliably avoided. .
[0027]
Furthermore, when it is detected that the key K has been removed from the rotor 1, the motor M (driving means) may be driven to move the shutter 6 from the open position to the restricted position. According to such a configuration, if the key K is removed from the rotor 1, the shutter 6 automatically moves to the restriction position, so that forgetting to close the shutter 6 can be avoided, and the crime prevention effect can be further improved.
[0028]
Although the present embodiment has been described above, the present invention is not limited to this. For example, a ring-shaped member (for example, a metal plate) made of a wear-resistant material may be inserted into the periphery of the insertion hole 7c. . According to this configuration, it is possible to reduce wear caused by the contact between the key K and the peripheral edge S of the insertion hole 7c when the key K is inserted and removed, and the life of the key detection device for the cylinder lock can be improved.
[0029]
In the present embodiment, the magnet 7a formed on the slide member 7 is configured to detect the slide of the slide member 7 when the magnet 7a is close to the hall element 8. Other detection means may be used as long as it detects a slide. Of course, a contact type such as a contact may be used as the detection means.
[0030]
Further, in this embodiment, is applied to the shutter manually operated and remotely controllable ones, Ru can be applied to what one of the operation is provided with a shutter capable. Of course, the present invention is also applicable to a device that does not communicate with the transponder (the antenna 14 is not formed on the substrate 14) or one that does not illuminate the key K insertion port 4a (the LED 14 is not formed on the substrate 14). can do.
[0031]
Furthermore, the key detection device according to the present embodiment is applied to a cylinder lock of a two-wheeled vehicle, but applied to other vehicles (four-wheeled vehicles, ships, etc.) having a cylinder lock for inserting and removing a key. Also good.
[0032]
【The invention's effect】
According to the invention of claim 1, when the key is inserted at an arbitrary angle with respect to the insertion slot, the key presses the periphery of the insertion hole formed in the slide member to slide the slide member, and the slide is detected. Therefore, the present invention can be applied to various cylinder locks having different stop positions and lock positions, and the manufacturing cost of the key detection device for the cylinder lock can be reduced. That is, since it is possible to detect that the key is inserted at an arbitrary angle, it is possible to detect the insertion state of the key with respect to the rotor regardless of which stop position and lock position are set. .
Further, since the shutter does not move from the open position to the restriction position while the detection means detects the key insertion, the shutter moves to the restriction position when the key is inserted into the rotor. It is possible to reliably avoid interference between the two.
[0033]
According to the invention of claim 2, since the ring-shaped member made of a wear-resistant material is fitted in the peripheral edge of the insertion hole, wear caused by contact between the key and the peripheral edge of the insertion hole when the key is inserted / removed is reduced. The life of the cylinder lock key detection device can be improved.
[0035]
According to the invention of claim 3 , when the detecting means detects that the key has been removed from the rotor, the driving means for moving the shutter from the open position to the restricting position is provided. Can be moved to the regulation position, forgetting to close the shutter can be avoided, and the crime prevention effect can be further improved.
[0036]
According to the invention of claim 4 , since the detection means detects the slide of the slide member in a non-contact manner, the resistance when the slide member slides is reduced as compared with the contact type detection means. In addition, the key can be inserted and removed more smoothly.
[Brief description of the drawings]
FIG. 1 is a top view showing a key detection device for a cylinder lock according to an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along line II-II in FIG. FIG. 4 is a schematic view showing a positional relationship between an insertion hole and an insertion port of a slide member in a key detection device for a cylinder lock according to an embodiment of the present invention. Schematic diagram showing a sliding member in the cylinder lock key detecting device (normal state in which no key is inserted)
FIG. 6 is a schematic diagram showing a slide member in a key detection device for a cylinder lock according to an embodiment of the present invention (a state in which a key is inserted).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Rotor 2 ... Case 3 ... Cylinder body 4 ... Cover 4a ... Insert 5 ... Top surface member 6 ... Shutter 7 ... Slide member 7a ... Magnet 7b ... Arm part 7c ... Insertion hole 8 ... Hall element (detection means)
DESCRIPTION OF SYMBOLS 9 ... Rotating shaft 10 ... 1st rotating member 11 ... 2nd rotating member 12 ... Magnet 13 ... Spring 14 ... Board | substrate 15 ... Antenna 16 ... Spring 17 ... LED

Claims (4)

In a key detection device for a cylinder lock for detecting whether or not the key is inserted into a rotor that can be inserted into and removed from the cylinder lock and can be rotated in the inserted state of the key,
A cover in which a key insertion port for the rotor is formed;
A slide member that slides by inserting and removing the key with respect to the rotor through the insertion port of the cover;
Detecting means for detecting the insertion state of the key with respect to the rotor by detecting sliding of the slide member;
With
In the state where the key is not inserted into the insertion port, the slide member is formed with an insertion hole with a part of the periphery facing the insertion port, and the key is inserted at an arbitrary angle with respect to the insertion port. The key presses the periphery of the insertion hole to slide the slide member , and
The cylinder lock is provided with a shutter that moves between a restriction position that covers the rotor upper portion and restricts insertion of the key into the rotor, and an open position that opens the rotor upper portion and allows the key to be inserted. The cylinder lock key detecting device is configured such that the moving operation from the open position to the restricting position is not performed while the detecting means detects the insertion of the key.   2. The key detecting device for a cylinder lock according to claim 1, wherein a ring-shaped member made of a wear-resistant material is fitted in the periphery of the insertion hole. 3. The cylinder lock according to claim 1, further comprising a drive unit that moves the shutter from the open position to the restriction position when the detection unit detects that the key is removed from the rotor. Key detection device. The key detecting device for a cylinder lock according to any one of claims 1 to 3 , wherein the detecting means detects the slide of the slide member in a non-contact manner.

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