JP2004300672A - Key detection device for cylinder lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a key detection device for cylinder lock applicable to various cylinder locks having mutually different stop positions and lock positions and capable of reducing the production cost. <P>SOLUTION: A key detection device for cylinder lock for detecting whether a key 1 is inserted in a rotor 1 or not, is provided with a cover 4 in which a keyinsertion opening 4a is formed, a slide member 7 sliding by an insertion/drawing motion of the key against the rotor 1 through the insertion opening 4a of the cover 4, and a hole element 8 detecting the insertion condition against the rotor 1 of the key by the detection of the slide of the slide member 7. In the slide member 7, in the condition that the key is not inserted in the insertion opening 4a, an insertion hole 7c that a part S of the peripheral edge is exposed in the insertion opening 4a, is formed, when the key is inserted in the insertion opening 4a, the key presses the peripheral edge S to slide the slide member 7. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a cylinder lock for detecting whether or not a key is inserted into a rotor that is disposed on a cylinder lock of a vehicle or the like and that can insert and remove a key and that can rotate with the key inserted. And a key detecting device.
[0002]
[Prior art]
Normally, a key cylinder of a motorcycle is provided with a rotor capable of inserting and removing a key.For example, the key can be rotated only when a 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 for starting the engine and a lock position for locking the steering.
[0003]
By the way, insertion and removal of a key from the rotor can be performed only when the rotor is at the stop position and the lock position. Conventionally, whether the key is inserted when the rotor is at the stop position and the lock position is determined. For example, a key detection device of a cylinder lock for detecting the above is proposed in Patent Document 1 or the like. The key detection device disclosed in this document includes a key detection member provided at a key insertion site in a rotor and slidable by insertion and extraction of a key, and a key detection member when the rotor is at a stop position or a lock position. And a switch that is turned on when the rocking member rocks.
[0004]
Thereby, when the key is inserted when the rotor is at the stop position or the lock position, the swing member swings, the switch is turned on, and it is possible to recognize that the key is inserted, When the switch is not turned on (that is, when it is turned off), it can be recognized that the key is not inserted at both positions.
[0005]
[Patent Document 1]
JP-A-6-73844 [0006]
[Problems to be solved by the invention]
However, in the above-described conventional key detection device for a cylinder lock, although it is possible to detect key insertion / removal with respect to a predetermined specific stop position and lock position, for example, when applied to a cylinder lock having a different stop position and lock position. However, the swinging member cannot detect the slide of the key detecting member, and a new key detecting device applicable to the cylinder lock must be prepared.
[0007]
That is, for various cylinder locks in which the stop position and the lock position are different in the rotation range of the rotor, a key detection device having one configuration cannot be used, and a unique key detection device must be prepared. Therefore, there is a problem 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 cylinder lock key detection device that can be applied to various cylinder locks having different stop positions and lock positions and that can reduce manufacturing costs. It is in.
[0009]
[Means for Solving the Problems]
According to the first aspect of the present invention, there is provided a cylinder for detecting whether or not a key is inserted into a rotor which is disposed on a cylinder lock, and which is capable of inserting and removing a key and which is rotatable with the key inserted. In the lock key detection device, a cover formed with a key insertion opening for the rotor, a slide member that slides by inserting and removing the key with respect to the rotor through the insertion opening of the cover, and a slide of the slide member. Detecting means for detecting a state of insertion of the key into the rotor by detecting the key, wherein the slide member has a part of the periphery facing the insertion port in a state where the key is not inserted into the insertion port. When the key is inserted at an arbitrary angle with respect to the insertion hole, the key presses the periphery of the insertion hole and slides. Wherein the sliding member.
[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 a periphery of the insertion hole.
[0011]
According to a third aspect of the present invention, in the key detecting device for a cylinder lock according to the first or second aspect, the cylinder lock includes a regulating position that covers an upper portion of the rotor and regulates insertion of the key into the rotor. A shutter is provided which moves between an open position where the upper portion of the rotor is opened and a key is allowed to be inserted, and the shutter is restricted from the open position while the detecting means detects the key being inserted. The movement to the position is not performed.
[0012]
According to a fourth aspect of the present invention, in the cylinder lock key detecting device according to the third aspect, when the detecting means detects that the key has been removed from the rotor, the drive moves the shutter from an open position to a regulating position. Means is provided.
[0013]
According to a fifth aspect of the present invention, in the cylinder lock key detecting device according to any one of the first to fourth aspects, the detecting means detects the slide of the slide member in a non-contact manner. There is a feature.
[0014]
BEST MODE FOR CARRYING OUT 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 a key (ignition key) is inserted into and removed from a cylinder lock of a motorcycle and is rotatable with the key inserted. It is for detecting whether or not.
[0015]
As shown in FIGS. 1 and 2, such a cylinder lock includes a rotor 1 having a key hole 1 a formed in a cylinder body 3, a case 2 holding an upper portion of the cylinder body 3, A cover 4 provided with an insertion port 4a for the key K with respect to the rotor 1 and an upper surface member 5 provided on the upper surface of the cover 4 at a periphery of the insertion port 4a; a shutter 6; 7 and a Hall element 8 as a detecting means.
[0016]
The shutter 6 moves between a regulating position that covers the upper part of the rotor 1 and restricts 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 key insertion. And is connected to a first rotating member 10 or a second rotating member 11 that rotates about a rotating shaft 9 formed to project from the case 2.
[0017]
The first rotating member 10 is configured to be able to lock the shutter 6 by engaging with the magnet 12 urged upward by the spring 13 when the shutter 6 is at the regulation position. Then, by inserting the magnet key MK into the insertion hole 4b formed in the cover 4, the magnet 12 is pressed down by the repulsive force of the magnet formed inside the magnet key MK to release the lock while releasing 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 regulation position and an opening position. 6 can be operated remotely. That is, in the cylinder lock applied to the present embodiment, both the manual operation of the shutter 6 by the first rotating member 10 and the remote operation of the shutter 6 by the second rotating member 11 are possible.
[0019]
On the other hand, an annular substrate 14 is provided 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 to be started by the proper key K, and an LED 17 is formed to illuminate the insertion port 4a of the key K. At a predetermined position of the substrate 14, a Hall element 8 for detecting a slide of a slide member 7, which will be described later, is provided. When the magnet approaches, the Hall element 8 changes an output signal by the magnetism.
[0020]
Further, a slide member 7 as shown in FIG. 3 is provided at a position on the back side of the cover 4 which covers the insertion port 4a. The slide member 7 has an insertion hole 7c formed substantially at the center in a plan view thereof, and has an arm portion 7b formed with a magnet 7a while projecting upward and leftward in FIG. The slide member 7 is slidable in the up and down direction in the figure, while being urged downward by a spring 16 at all times.
[0021]
Then, in a normal state (a state where the key K is not inserted into the insertion port 4a), as shown in FIG. 4, a part S of a peripheral edge of an insertion hole 7c formed in the slide member 7 faces from the insertion port 4a. It is positioned as follows. At that time, as shown in FIG. 5, the magnet 7a formed on the slide member 7 is in a state of being separated from the Hall element 8 provided 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 pressed. The spring 16 is slid upward in the figure against 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 match, 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 7a comes close to the Hall element 8.
[0023]
As described above, when the magnet 7a approaches the Hall element 8, the output voltage from the Hall element 8 is different, so that the sliding of the slide member 7 can be detected. Can be detected. On the contrary, when the key K is pulled out from the key hole 1a of the rotor 1, the slide member 7 slides to a normal state (ie, the state shown in FIGS. 4 and 5) by the urging force of the spring 16, so that the Hall element 8 It can be detected that the magnet K has been separated and the key K has been removed from the rotor 1.
[0024]
According to the above configuration, it is possible to detect that the key has been inserted at an arbitrary angle, so that it is possible to detect the state of key insertion with respect to the rotor regardless of the stop position and the lock position. Can be. 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 the non-contact type detection means such as the Hall element 8, the resistance when the slide member 7 slides is reduced as compared with the one using the contact type detection means. The key K can be more smoothly inserted and removed.
[0025]
Further, after detecting the inserted / extracted state of the key K by the above-described key detection device for a cylinder lock, the detection information can be used as follows. For example, if the key K has not been removed from the rotor 1 even after a certain period of time has elapsed after the engine of the motorcycle is stopped, it is recognized that the key K has been removed and the alarm buzzer sounds for a predetermined period (about several tens of seconds). Can be.
[0026]
Further, while detecting that the key K is inserted into the rotor 1, the movement operation from the open position of the shutter 6 to the restriction position can be prevented. In particular, when the shutter 6 can be moved using the motor M as in the present embodiment, the movement of the shutter 6 from the open position to the restriction position is performed while the insertion of the key K is detected. In this state, when the key K is inserted into the rotor 1, the interference between the two can be reliably avoided when the shutter 6 moves to the regulated position by the driving force of the motor M. .
[0027]
Further, when it is detected that the key K has been removed from the rotor 1, the motor M (drive means) may be driven to move the shutter 6 from the open position to the restriction position. According to this configuration, when the key K is removed from the rotor 1, the shutter 6 automatically moves to the regulation position, so that forgetting to close the shutter 6 can be avoided, and the crime prevention effect can be further improved.
[0028]
The present embodiment has been described above, but the present invention is not limited to this. For example, a ring-shaped member (for example, a metal plate or the like) made of a wear-resistant material may be fitted around the periphery of the insertion hole 7c. . According to such a configuration, it is possible to reduce the abrasion 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 withdrawn, and it is possible to improve the life of the cylinder lock key detection device.
[0029]
In the present embodiment, the slide of the slide member 7 is detected when the magnet 7 a formed on the slide member 7 approaches the Hall element 8. Other detection means may be used as long as they detect a slide. Of course, a contact type such as a contact may be used as the detecting means.
[0030]
Furthermore, in the present embodiment, the shutter is applied to a shutter that can be manually operated and remotely operated. However, the present invention can be applied to a shutter having a shutter that can be operated in either one of the shutters. It can also be applied to no cylinder lock. Of course, the present invention is also applied to a device that does not communicate with the transponder (the antenna 14 is not formed on the substrate 14) or a device that does not illuminate the insertion port 4a of the key K (the device 14 does not have the LED 17). can do.
[0031]
Further, the key detection device according to the present embodiment is applied to a cylinder lock of a motorcycle, but is applied to another vehicle (a four-wheeled vehicle or a ship) having a cylinder lock for inserting and removing a key. Is 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 peripheral edge of the insertion hole formed in the slide member to slide the slide member, and detects the slide. 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 has been inserted at an arbitrary angle, the inserted state of the key with respect to the rotor can be detected regardless of the stop position and the lock position. .
[0033]
According to the second aspect of the present invention, since the ring-shaped member made of a wear-resistant material is fitted into the periphery of the insertion hole, the abrasion caused by the contact between the key and the periphery of the insertion hole when the key is inserted and removed is reduced. And the life of the cylinder lock key detecting device can be improved.
[0034]
According to the third aspect of the present invention, the shutter does not move from the open position to the regulation position while the detecting means detects the key insertion, so that the shutter is not operated while the key is inserted into the rotor. It is possible to reliably avoid interference between the two by moving to the regulation position.
[0035]
According to the fourth aspect of the present invention, 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 regulating position is provided. Moves to the regulation position, the forgetting to close the shutter can be avoided, and the security effect can be further improved.
[0036]
According to the fifth aspect of the present invention, since the detecting 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 one using the contact type detecting means. The key can be more smoothly inserted and removed.
[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 sectional view taken along the line II-II in FIG. 1. FIG. 3 is a key detection of a cylinder lock according to an embodiment of the present invention. FIG. 4 is a bottom view of a cover of the device. FIG. 4 is a schematic diagram showing a positional relationship between an insertion hole and an insertion hole of a slide member in a key detection device for a cylinder lock according to an embodiment of the present invention. Schematic view showing a slide member in the key detection device for such a cylinder lock (normal state in which no key is inserted).
FIG. 6 is a schematic view showing a slide member in the key detection device for a cylinder lock according to the embodiment of the present invention (in a state where a key is inserted).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Rotor 2 ... Case 3 ... Cylinder body 4 ... Cover 4a ... Insert port 5 ... Top member 6 ... Shutter 7 ... Slide member 7a ... Magnet 7b ... Arm 7c ... Insert hole 8 ... Hall element (detection means)
Reference numeral 9: rotating shaft 10: first rotating member 11: second rotating member 12: magnet 13, spring 14, substrate 15, antenna 16, spring 17, LED

Claims (5)

A key detection device for a cylinder lock for detecting whether or not the key is inserted into a rotor that is disposed on the cylinder lock and that allows the key to be inserted and withdrawn and rotatable with the key inserted,
A cover formed with a key insertion opening for the rotor,
A sliding member that slides by inserting and removing the key with respect to the rotor through an insertion port of the cover;
Detecting means for detecting the state of insertion of the key into the rotor by detecting the slide of the slide member;
With
In the slide member, in a state where a key is not inserted into the insertion port, an insertion hole is formed with a part of a peripheral edge facing the insertion port, and a key is inserted at an arbitrary angle with respect to the insertion port. A key detection device for a cylinder lock, wherein a key presses a peripheral edge of the insertion hole to slide a slide member. 2. A key detecting device for a cylinder lock according to claim 1, wherein a ring-shaped member made of a wear-resistant material is fitted into a periphery of said insertion hole. The cylinder lock is provided with a shutter that moves between a regulating position that covers the upper part of the rotor and regulates insertion of the key into the rotor and an open position that opens the upper part of the rotor and allows insertion of the key. 3. The shutter according to claim 1, wherein the shutter does not move from the open position to the restriction position while the detection unit detects the key insertion. A key detection device for a cylinder lock as described in the above. 4. A key detecting device for a cylinder lock according to claim 3, further comprising a driving unit for moving the shutter from an open position to a regulating position when the detecting unit detects that the key is removed from the rotor. The key detection device for a cylinder lock according to any one of claims 1 to 4, wherein the detection unit detects the slide of the slide member in a non-contact manner.

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