JP2000104426A - Protector of cylinder lock for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protector of a cylinder lock for a vehicle which is improved in convenience for use and operability, and can heighten the degree of freedom in design without limitation on layout and installation space. SOLUTION: This protector includes a shutter 21 with a magnet key fitting recessed part 23, which is disposed in the head of a cylinder key and turned between the set position and reset position to open and close an ignition key hole 5 in the upper surface of a rotor 3, a magnet lock 15 for holding the shutter 21 in the set position to lock, thereby closing the ignition key 5 by the shutter 21, and an ignition key inserted in the ignition key hole 5. A magnet key formed of magnet is integrally provided on the knob part of the ignition key, the outline of the magnet key is formed in a shape to substantially agree with the magnet key fitting recessed part 23 with directivity, the magnet key is set in the magnet key fitting recessed part 23 and turned to unlock the magnet lock 15, and the shutter 21 is held in the reset position to open the ignition key hole 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylinder lock protection device for a vehicle such as a two-wheeled vehicle, which can prevent the cylinder lock from being broken.

[0002]

2. Description of the Related Art Conventionally, in order to prevent a cylinder lock of a motorcycle or the like from being broken by the insertion of foreign matter into a key hole such as a scissor by a third party, for example, Japanese Patent Laid-Open No. 9-53348 is disclosed.
Discloses a cylinder lock disclosed in Japanese Patent Application Laid-Open Publication No. H11-209,837. This cylinder lock is covered with a cover made up of a plurality of rings with symbols displayed on the outer peripheral surface of the head, and if the symbol of each ring is not set at a predetermined position, the cover is locked and the cylinder lock is released. The structure is such that the cover is unlocked and removed from the cylinder lock head when the symbol of each ring is set to a predetermined position by preventing removal of the cylinder lock. Have been.

[0003]

However, this cylinder lock has a structure in which a cover formed of a plurality of rings separate from the cylinder lock is detachably covered on the head of the cylinder lock. When the motorcycle is running, it is necessary to remove the cover from the cylinder lock and store it in a pocket or bag, and the cover is easily lost and it is necessary to pay attention to its storage. At the time of removal, it is necessary to rotate each ring one by one to set the symbol at a predetermined position, so that there is a disadvantage that operability is poor.

The applicant has filed Japanese Patent Application No. Hei 9-218190 as a cylinder lock which solves these problems. As shown in FIGS. 10 and 11, the cylinder lock is moved between the set position and the reset position in the head of the cylinder lock 51 by manually operating the projection 52a from outside the cylinder lock 51. A shutter 52 that opens and closes an ignition key hole 53 on the upper surface of the rotor, a magnet lock 54 made of a magnet that holds the shutter 52 at a set position and closes and locks the ignition key hole 53 with the shutter 52, and inserts into and removes the ignition key hole 53. And the magnet key 56 composed of a magnet provided on the knob of the magnet lock 5 causes the magnetic lock 5
An ignition key 55 for unlocking the ignition key 4 and opening the ignition key hole 53 is provided.

However, in the cylinder lock 51, the projection 52a of the shutter 52 projects outside the cylinder body 57 of the cylinder lock 51 by a predetermined dimension when the vehicle is running (reset). The problem that the degree of freedom in design is inferior, such as the layout and mounting space of the cylinder lock 51 being easily restricted, has been newly clarified. The operation for opening the shutter 52 includes the operation of setting the magnet key 56 to the magnet lock 54 as shown in FIG. 11 and the operation of the projection of the shutter 52 provided at a position different from the magnet key 56 in this set state. As shown in FIG. 10 (see FIG. 10), the part 52a needs to be lightly pushed into the head of the cylinder lock 51, which requires two continuous motions, which is not sufficient in terms of operability. became.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an object of the present invention is to improve usability and operability as well as to improve the design without being restricted by a layout or a mounting space. It is an object of the present invention to provide a protection device for a cylinder lock for a vehicle, which can increase the degree of freedom of the vehicle. A second object of the present invention is to provide a protection device for a cylinder lock for a vehicle which can easily set a magnet key and further improve operability, in addition to the object of the first invention. is there.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, a magnet key fitting recess is provided in a head of a cylinder lock, and a set position is provided. A shutter capable of opening and closing an ignition key hole on the upper surface of the rotor by rotating between an ignition key hole and a reset position, a magnet lock for locking the shutter by holding the shutter at the set position and closing the ignition key hole with the shutter, and an ignition key hole. An ignition key that is inserted into and removed from the shutter, and a magnet key made of a magnet is integrally provided on a knob portion of the ignition key, and the outer shape of the magnet key is substantially directional with respect to a magnet key fitting concave portion of the shutter. Form into a shape that can match,
By setting and rotating the magnet key in the magnet key fitting concave portion, the magnet lock is unlocked, the shutter is held at the reset position, and the ignition key hole is opened.

[0008] With this configuration, the shutter rotatably provided in the head of the cylinder lock closes the ignition key hole by being held at the set position by locking the magnet lock. In the locked state of the magnet lock, the ignition key hole on the upper surface of the rotor is closed by the shutter, making it difficult to insert foreign matter such as scissors into the ignition key hole, and preventing the cylinder lock from being broken due to foreign matter insertion etc. Is done.

On the other hand, the unlocking operation of the magnet lock (rotating operation of the shutter from the set position to the reset position) is performed by inserting a magnet key made of a magnet integrally provided on a knob portion of the ignition key into a magnet key of the shutter. This is performed by setting and rotating in the joint recess. At this time, since the outer shape of the magnet key substantially matches the magnet key fitting recess with directionality, the magnet key is simply fitted into the magnet key fitting recess and set. Is unlocked. Then, by rotating the magnet key in this state, the shutter is rotated to the reset position, and the ignition key hole is opened.

The invention according to claim 2 is characterized in that the magnet key and the magnet key fitting concave portion of the shutter are provided with concave and convex portions which can be engaged with each other with a predetermined direction. I do. With this configuration, the outer shape of the magnet key is fitted to the magnet key fitting concave portion of the shutter, and the concave and convex portions are engaged, so that the magnet key has directionality in the magnet key fitting concave portion of the shutter. As a result of the positioning, the operability of the magnet key is further improved, for example, the setting (positioning) of the magnet key becomes easy.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. 1 to 8 show an embodiment of a cylinder lock for a vehicle using a protection device according to the present invention. FIG. 1 is a plan view thereof, and FIG. 2 is a cross-sectional view taken along line AA of FIG. FIG. 3 shows a state in which a key is set in an ignition key hole), FIG. 3 is a cross-sectional view taken along line BB of FIG. 2 (however, shows a setting state of a shutter), and FIG.
5 is a cross-sectional view showing a reset state of the shutter, FIG. 6 is a cross-sectional view of the main part, FIG. 7 is a perspective view of an ignition key, and FIG. 8 is a side view thereof.

In FIGS. 1 and 2, a cylinder lock 1 is
The cylinder body 2 has an open upper end and an open lower end, and a substantially cylindrical rotor 3 is rotatably disposed in the upper end opening of the cylinder body 2. The rotor 3 has an ignition key hole 5 through which the ignition key 4 is inserted and withdrawn along the center axis from the upper surface thereof.
The fitting protrusion at the upper end of the cam 6 is fitted into the fitting recess at the center of the lower surface.

The cam 6 has a cam shaft 6a at the rear end of a lock berth slider 7 and a lock bar 8 at the front end of the lock berth slider 7. The lock bar 8 is provided in the square hole 9 of the cylinder body 2 so as to be able to advance and retreat. Also, a contact board 10 is provided at the fitting portion 6b at the lower end of the cam 6.
Are fitted and the contact board 10 is rotated by the rotation of the fitting portion 6b, so that predetermined contacts are opened and closed.

A substantially cap-shaped case 12 covered by a cover 13 is fixed to the upper outer peripheral surface of the cylinder body 2 which is the head 1a of the cylinder lock 1. The case 12 is formed of a non-magnetic material, and as shown in FIG. 3 to FIG.
4 are formed, and a magnet lock 15 is disposed around the outer periphery of the hole 14. The magnet lock 15 has four magnets 16a to 16d arranged in a square position. The magnets 16a to 16d are provided in a concave portion 18 on the upper surface of a seat 17 formed on the outer peripheral portion of the case 12 by a spring 19.
Are respectively inserted so as to be able to move up and down. This 4
The magnetic poles on the upper surface side of the magnets 16a to 16d are set such that the N pole and the S pole are appropriately combined.

A shutter 21 is disposed above the case 12 and between the cover 13 and an O-ring 20. The shutter 21 is made of a non-magnetic material, and closes the hole 14 of the case 12.
a, and a fitting portion 21b fitted into the seat portion 17 of the case 12 from above, and the upper surface of each of the magnets 16a to 16d of the magnet lock 15 is engaged with the back surface of the fitting portion 21b. Are formed.

On the upper surface of the fitting portion 21b of the shutter 21, a magnet key fitting recess 23 having an irregular octagon in plan view having eight surfaces on the outer periphery is formed. At the approximate center position, the notch 24
A substantially cylindrical engaging projection 24 having a is integrally formed. Further, the shutter portion 21a of the shutter 21
A pair of concave portions 25a and 25b are formed at a predetermined interval on the back surface of the connection portion between the and the fitting portion 21b.
The balls 5a and 25b are configured to engage with balls 26 supported on the upper surface of the case 12 via springs (not shown).

That is, at the set position where the shutter 21 closes the ignition key hole 5 as shown in FIG. 3, the ball 26 engages with one of the concave portions 25a, and the shutter 21 rotates to open the ignition key hole 5. In the reset position shown in FIG. 5, the ball 26 is engaged with the other recess 25b. This ball 26 has a concave portion 25a,
The shutter 21 is selectively engaged with the shutter 21b.
Is held at the set position or the reset position, and the shutter 21 is elastically supported on the case 12, so that rattling of the shutter 21 at the reset position where the vehicle is traveling, for example, is prevented.

The cover 13 is formed of a non-magnetic material, and is disposed so as to cover the upper part of the shutter 21 and to be fitted to the outer peripheral portion of the upper end opening of the case 12. Fixed. As shown in FIGS. 1 and 2, the cover 13 is formed with a hole 28 through which the ignition key 4 is inserted and removed.
A circular hole 29 is formed corresponding to the magnet key fitting concave portion 23 of the shutter 21.

On the other hand, as shown in FIGS. 7 and 8, a magnet key 30 for locking or unlocking the magnet lock 15 is integrated with a knob 4b formed on the rear side of the insertion portion 4a of the ignition key 4. Is provided. That is, the magnet key 30 is
On the rear surface, four magnets 31a to 31d are provided in a square position corresponding to the magnets 16a to 16d, and the outer shape of the end 30a is the shutter 21.
Are formed in an irregular octagon having eight surfaces corresponding to the magnet key fitting concave portions 23. An engagement recess 32 having a notch 32a corresponding to the engagement projection 24 is formed inside the four magnets 31a to 31d at the end 30a of the magnet key 30.

The magnets 31a to 31a of the magnet key 30
For example, when the knob 4b is resin-molded in the metal insertion portion 4a of the ignition key 4, the outer surface of the magnets 31a to 31d is covered with a resin of a predetermined thickness, and the magnets 31a to 31d are formed. Is formed so that the existence of the information is not easily grasped from outside. Also,
The magnetic poles of the magnets 31a to 31d of the magnet key 30 are set on the outer surface side of the four magnets 31a to 31d of the magnet key 30 when the magnet key 30 is fitted and set in the magnet key fitting recess 23 of the shutter 21. The magnet and the magnets on the outer surface (upper surface side) of the four magnets 16a to 16d of the magnet lock 15 are set so as to be mutually repulsive magnetic poles.

Next, the operation of the cylinder lock 1 will be described. First, when the driver leaves the motorcycle, for example, when parking the motorcycle, the shutter 21 is locked by locking the magnet lock 15 in order to prevent the cylinder lock 1 from being broken by a third party. Set to the set state. In this setting state, when the shutter 21 is in the reset position, the magnet key 30 of the ignition key 4 extracted from the ignition key hole 5 of the rotor 3 is
It is inserted from above into the magnet key fitting concave portion 23 of the shutter 21 through the hole 29 of the cover 13 and fitted therein.

As shown in FIG. 6, the fitting of the magnet key 30 into the magnet key fitting recess 23 is performed by positioning the eight surfaces of the end 30a of the magnet key 30 and the eight surfaces of the magnet key fitting recess. At the same time, the engaging recess 32 of the end 30a of the magnet key 30 is
By performing engagement with the engagement projection 24 of the above, it is performed with a certain direction. Then, with the magnet key 30 fitted in the magnet key fitting recess 23 of the shutter 21, the magnet key 30 is set in the setting direction (SHU in FIG. 1).
(T direction).

The shutter 21 is located in a state where the upper surfaces of the magnets 16a to 16d of the magnet lock 15 come into contact with the back surface of the shutter 21 and lower downward against the urging force of the spring 19 in the reset state.
The ball 26 is engaged with the concave portion 25b on the back surface. When a predetermined rotational force is applied from the magnet key 30, the ball 26 comes off the concave portion 25 b and comes into contact with the back surface of the shutter 21.
Rotates around the seat 17.

By the rotation of the shutter 21, the shutter portion 21a closes the hole 14 of the case 12, and the rotor 3
The ignition key hole 5 is closed by the shutter 21. At the same time when the ignition key hole 5 is closed by the shutter 21, the four magnets 1 of the magnet lock 15 are closed.
6a to 16d and the four engaging recesses 22 of the shutter 21 vertically oppose each other. If the magnet key 30 is removed from the magnet key fitting recess 23 in this state, the magnets 16a to 16d exert the urging force of the spring 19. As a result, as shown in FIG. 4, the magnet lock 15 ascends and engages with each of the engagement recesses 22 to lock the magnet lock 15.

When the magnet lock 15 is locked, the shutter 21 cannot rotate and is kept at the set position. In this state, the ignition key hole 5 is completely closed by the shutter 21, and even if a third party attempts to insert foreign matter such as scissors into the ignition key hole 5, the ignition key hole 5 cannot be inserted. Will be prevented.

On the other hand, when the locked state of the magnet lock 15 is released to allow the motorcycle to run, that is, when the shutter 21 is shifted from the set position to the reset position, the ignition key 4 pulled out of the ignition key hole 5 is moved. Insert the magnet key 30 into the hole 2
From 9, it is fitted and set in the magnet key fitting concave portion 23 of the shutter 21. This fitting is also performed by specifying the directionality of the magnet key 30 as in the setting.

When the magnet key 30 is set in the magnet key fitting recess 23 of the shutter 21,
The N pole magnets 31a, 31c of the magnet key 30 and the N pole magnets 16a, 16c of the magnet lock 15 repel each other, and the S pole magnets 31b, 31d and the S pole magnet 16
b and 16d repel each other, and the repulsive force pushes the magnets 16a to 16d downward in the recess 18 against the urging force of the spring 19, respectively. This allows
As shown in FIG. 6, the upper portions of the magnets 16a to 16d are respectively disengaged from the engaging recesses 22 of the shutter 21, and the magnet lock 15 is unlocked, so that the shutter 21 becomes rotatable.

In this state, when the magnet key 30 is rotated in the reset direction (OPEN direction in FIG. 1), the ball 26 engaged with the concave portion 25a of the shutter 21 comes off the concave portion 25a and comes into contact with the back surface of the shutter 21. While doing
The shutter 21 rotates to the reset position, and the ball 26
Stops at the position where it is engaged with the engagement recess 25b. As a result, as shown in FIG.
The closed state of the second hole 14 (ignition key hole 5) is released.

Then, in this state, the magnet key 30 is removed from the magnet key fitting concave portion 23 of the shutter 21, and the insertion portion 4a of the ignition key 4 is moved to the cover 13, the shutter 21 and the case 1 as shown in FIG.
Inserting the ignition key hole 5 of the rotor 3 from the hole 2 allows the vehicle to run.

The magnets 31a to 31a of the magnet key 30
31d is the magnet key fitting concave portion 23 of the shutter 21.
When set by fitting to the case 12, the cover 13,
Since the shutter 21 is made of a non-magnetic material, the magnets 30 are not magnetized by the magnets 31 a to 31 d of the magnet key 30.
The repulsive vertical movement of a to 16d can be performed smoothly.

As described above, according to the cylinder lock 1 of the above embodiment, the shutter 21 is rotatably disposed in the cover 13 on the upper surface of the opening of the ignition key hole 5 of the rotor 3.
In the set state, the ignition key hole 5 can be completely closed by the shutter 21.
It is possible to prevent the insertion of foreign matter into the ignition key hole 5 by a third party or the like, thereby preventing the cylinder lock 1 from being broken and preventing the motorcycle from being stolen.

In particular, the ignition key hole 5 of the rotor 3
Is covered by the case 12 and the cover 13,
The case 12 and the cover 13 function as a reinforcing member, and the magnets 16a to 16d of the magnet lock 15
Since the magnets 16a to 16d are respectively engaged with the four engagement recesses 22 of the shutter 21 when locked, the shutter 21 is reliably prevented from moving to the reset position in the set state, and For example, it becomes more difficult to unlock the head other than the magnet key 30, and the effect of preventing the head 1a of the cylinder lock 1 from being broken is further enhanced.

Also, the shutter 21 and the magnet lock 15
Is provided in the case 12 in advance, and the case 12 is integrally fixed to the head 1a of the cylinder lock 1 by fixing the case 12 to the upper outer peripheral surface of the cylinder body 2 with a pin or the like. Cylinder body 2
This eliminates the need for a separate component, and eliminates the need to take care of carrying or storing when the shutter 21 or the magnet lock 15 is not used, and eliminates the loss and improves the usability.

Further, since the shutter 21 is structured so as to rotate inside the cover 13 provided on the head 1a of the cylinder lock 1, there is no portion protruding from the cylinder body 2 to the outside. And the shutter 21 and the magnet lock 15 can be easily attached to the existing cylinder lock without changing the structure of the main part at all. Can respond. As a result, the degree of freedom in designing the cylinder lock 1 can be increased, and the increase in cost due to the design change can be minimized.

Further, since the magnet key 30 for unlocking the magnet lock 15 is provided integrally with the knob 4b of the ignition key 4 of the cylinder lock 1,
A separate magnet key is not required, and the ignition key 4 essential for traveling of the vehicle can be effectively used. In addition, the magnet key 30 provided on the ignition key 4 is inserted into the magnet key fitting recess 23 of the shutter 21. The magnet lock 15 can be locked or unlocked by one continuous action operation of setting and rotating.

The outer shape of the magnet key 30 and the shape of the magnet key fitting concave portion 23 of the shutter 21 are 8
Since it is formed in an irregular octagon having three surfaces and has directionality, just by fitting the magnet key 30 into the magnet key fitting recess 23, the four magnets 16a to 16d of the magnet lock 15, The four magnets 31a to 31d of the magnet key 30 can be automatically opposed (positioned) so that their magnetism repels each other.

In the above embodiment, the magnet key fitting recess 23 of the shutter 21 and the magnet key 3
0 is an example, and for example, FIG.
It can also be formed as shown in FIG. That is,
The magnet key fitting recess 23 shown in (a) (the outer shape of the end 30a of the magnet key 30 is also substantially the same shape) is vertically symmetrical in the figure, and the magnet key fitting recess 23 shown in (b) is The magnet key fitting concave portion 23 of the above embodiment has a shape opposite to that in the left-right direction.

The magnet key fitting recess 23 shown in FIG. 3C is a notch 24a (notch 22) of the engaging projection 24 (engaging recess 22) of the magnet key fitting recess 23 of the above embodiment.
The magnet key fitting recess 23 shown in (d) is formed by forming the notch 24a of the engaging projection 24 of the magnet key fitting recess 23 shown in (b) in the reverse position. Even if it is formed in this way, the positioning of both members will be performed automatically only by fitting the magnet key 30 into the magnet key fitting recess 23 having substantially the same shape.
The same operation and effect as the above embodiment can be obtained.

In the above embodiment, the case where the magnet 15 has the four magnets 16a to 16d and the magnet key 30 has the four magnets 31a to 31d has been described. And the polarity is not limited to the above embodiment.
Further, the shapes of the shutter 21 itself and the magnet key fitting recess 23 in the above embodiment, the structure of the case 12 and the cover 13, the form of the cylinder lock 1, the form of the ignition key 4 itself, the arrangement position of the magnet key 30 and its outer shape The shape and the like are also examples, and it goes without saying that various changes can be made without departing from the spirit of each invention according to the present invention.

[0040]

As described above in detail, according to the first aspect of the present invention, the shutter and the magnet lock are integrally assembled in the head of the cylinder lock, so that the insertion of the foreign matter into the ignition key hole can be prevented. In addition to reliable prevention, a separate cover and the like are not required to improve usability and operability, and there is no protrusion from the cylinder body to the outside, so there is no restriction on layout and mounting space The degree of freedom in design can be increased.

According to the second aspect of the invention, in addition to the effect of the first aspect, the magnet key and the magnet key fitting recess of the shutter are engaged by the concave and convex portions, so that the magnet key set ( Positioning) is facilitated, and the operability can be further improved.

[Brief description of the drawings]

FIG. 1 is a plan view showing one embodiment of a cylinder lock for a vehicle using a protection device according to the present invention.

FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 (however, a state where an ignition key is set in an ignition key hole).

FIG. 3 is a cross-sectional view taken along the line BB of FIG. 2 (however, the shutter is set).

FIG. 4 is a sectional view of a main part of the same.

FIG. 5 is a sectional view showing a reset state of the shutter.

FIG. 6 is a sectional view of a main part of the same.

FIG. 7 is a perspective view showing an example of the ignition key.

FIG. 8 is a side view of the same.

FIG. 9 is a plan view showing a modification of the magnet lock.

FIG. 10 is a plan view showing an improved product of a conventional cylinder lock.

FIG. 11 is an explanatory diagram of the operation.

[Explanation of symbols]

 1 ... Cylinder lock 1a ... Head 2 ... Cylinder body 3 ... Rotor 4 ... ... Ignition key 4b ... Knob 5 ... Ignition key hole 12 ... Case 13 ... · Cover 15 ······ Magnet lock 16a to 16d ··· Magnet 20 ······ O-ring 21 ········ Shutter 22 ········ Engaging concave portion 23 Magnet key fitting concave portion 24 Engaging convex portion 30 Magnet keys 31a to 31d Magnet 32 ..... Recessed recess

Claims (2)

[Claims] A shutter provided with a magnet key fitting recess in a head portion of a cylinder lock and capable of rotating between a set position and a reset position to open and close an ignition key hole on a rotor upper surface; A magnet lock that locks the shutter by holding the shutter at the set position to close the ignition key hole with the shutter, and an ignition key that is inserted into and extracted from the ignition key hole, wherein a magnet made of a magnet is provided on a knob of the ignition key. A key is provided integrally, and the outer shape of the magnet key is formed in a shape that can be substantially aligned with the magnet key fitting recess of the shutter with directivity, and the magnet key is set in the magnet key fitting recess. Pivoting the shutter to unlock the magnet lock and reset the shutter to the reset position. A vehicle cylinder lock protection device characterized in that the ignition key hole is opened by holding the ignition key hole. 2. The vehicle according to claim 1, wherein the magnet key and the magnet key fitting recess of the shutter are provided with a concave / convex portion which can be engaged with a predetermined direction. Cylinder lock protection device.