JPS6060001A - Wheel lock device for automobile - Google Patents

Abstract

PURPOSE:To make it impossible to copy a duplicate key so that a reliable lock device is obtained, by incorporating magnets in a key and a lock, respectively, so that when the key is fitted into the lock, and the same poles of the magnets in both key and lock are met, the lock may be released. CONSTITUTION:In a wheel assembly in which a wheel 2 is secured to a wheel hub 1 by screwing a wheel nut 4 onto an attaching bolt 3 integrally incorporated with the wheel hub 1, and a wheel lock 5 is provided to the nut 4, the wheel lock 5 is composed of an outer cylinder 51 and an intermediate member 54. When the magnet storing hole 71 of a magnet casing 7 disposed in a cavity formed in the top section of the outer cylinder 51, is met with an engaging hole 64 formed in the top surface plate of a rotor 6, a magnet 72 is engaged into the storing hole 71 by means of a spring 73 so that the rotor 6 is held to be impossible to rotate. Further, due to engagement of a latch retainer 63 extending axially of the rotor 6, with a latch 8, the tapered end of the latch 8 is held to be engaged with the front end of the nut 4, thereby the pulling-out of the lock 5 is inhibited.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wheel lock device for an automobile, and a wheel lock in which a lock and a key have a built-in magnet, and when a duplicate key is matched with the lock, the built-in magnet in the lock is repulsed and the lock is opened. Regarding equipment. In recent years, automobile tires and tires and wheels, which have become luxury accessories, have been frequently stolen, and various wheel locks have been used to prevent theft. However, none of them can be forcibly opened with a tool such as a screwdriver and is completely useful for preventing theft. The present invention has a built-in magnet in the lock and key, so that when the key is placed on the lock, the magnet in the lock repulses and the lock can be unlocked only when the same polarity of both magnets is used. Create an infinite number of combinations of open locks and keys, that is, create locks that cannot be imitated with matching keys, and that cannot be forcibly pried open with a tool such as a screwdriver after being locked. year,
Another object of the present invention is to provide a wheel locking device for an automobile in which the function of the magnet is not impaired even if rainwater, washing water, etc. penetrate.

The present invention will be explained with reference to the drawings. Figure 1 shows wheel hub 1
The wheel 2 is attached to the hub 1 by tightening the wheel nut 4 according to the present invention to the port 3, and the wheel lock 5 according to the embodiment according to the present invention is attached to the nut 4. This is a sectional view of the wheel locking device. be. The wheel lock 5 includes an outer cylinder 51 having a bottom inner cavity 52 that accommodates the wheel nut 4 inside the bottom side, and a head inner cavity 53 that rotatably accommodates the rotor 6 inside the head side. , and an intermediate body 54 rotatably supporting the rotor 6. The rotor 6 consists of an upper plate 61 and a rotating shaft part 62, and a plurality of latch pressers 63 are protruded downward from the end of the upper plate 61. A magnet case 7 is fixedly stored in the head inner cavity 53 of the outer cylinder 51, and a magnet storage hole 71 is provided in the magnet case 7.
The magnet housing hole 71 is provided with a magnet 72 on the upper part thereof and a pressing spring 7 of the magnet 72 on the lower part thereof.
Pay 3. And on the back side of the top plate 61 of the rotor 6,
An engaging hole 64 for the magnet 72 is provided, and the retaining hole 64 and the magnet storage hole 71 of the magnet case 7 are provided.
When the two match, the magnet 72 is pressed by the spring 73 and engages with the magnet storage hole 71 of the magnet case 7, and the rotor 6 is made unable to rotate. A protrusion 65 is formed protruding from one place on the back surface of the father rotor 6, and a groove 74 into which the protrusion 65 fits and is secured is formed on the upper surface of the magnet case 7, and the groove 74 extends longer than the protrusion 65. and a spring 7 that constantly presses the protrusion against the extension.
Contains 5. 8 is a latch whose upper part is freely held by the magnetic case 7, and when the latch presser 63 of the rotor 6 is in the latch presser position (the position shown in the figure), the tip of the latch is connected to the tip of the wheel nut as shown in the figure. Once engaged, the wheel lock 5 cannot be pulled out from the wheel nut 4.

Next, each part of the above configuration will be explained. As shown in Figures 2 and 3, the wheel nut 4 is located directly above the wheel 2 when tightened, as shown in Figures 2 and 3 (Figure 2 is a side view showing the upper half in cross section, Figure 3 is a front view in the direction of arrow A). A groove 42 forms a groove 41 into which the tip of an outer cylinder 51 of the lock 5 is fitted, and the upper part (right side in the figure) is a hexagonal cylinder 43. The tip of the hexagonal tube 43 is a protrusion 44, and a lock groove 45 is formed at the base thereof.

The outer cylinder 51 of the wheel lock 5 is shown in FIGS. 4 and 5.

FIG. 4 is a sectional view similar to FIG. 1, and FIG. 5 is a side view shown in the direction of arrow B. As described above, the intermediate body 54 that separates the inner cavity 52 that accommodates the wheel nut 4 and the inner cavity 53 that accommodates the magnet case 7 rotatably holds the rotating shaft portion 62 of the rotor 6 at its center. A rotor shaft hole 55 is provided, and an L-shaped cavity 56 for housing three latches 8, which will be described later, is provided on the outer periphery of the shaft hole 55. Reference numerals 57 indicate spring receiving recesses for the magnetic pressure spring 73 provided at five locations.Notches 59 are provided at the bottoms of the spring receiving recesses, respectively, passing through the intermediate body 54.
is provided.

+1 rotor, 6 is shown in Figures 6 and 7. FIG. 6 is a cross-sectional view thereof, and FIG. 7 is a front view in the direction of arrow C. Top plate 61 of rotor 6
A rotary shaft portion 62 is formed in the center of the shaft portion 62, and the tip of the shaft portion 62 is passed through the rotor shaft hole 55 formed in the intermediate body 54 of the wheel lock outer cylinder 51, and the washer 9 is held at the tip of the rotor shaft hole 55. It is caulked and rotatably attached to the outer cylinder 51. Thin plate-like latch holders 63 are protruded from three locations (at 120° intervals) on the outer edge of the top plate 61, and five magnetic engagement holes 64 are provided on the inner surface of the top plate 61. Similarly, a projection 65 is provided on the inner surface of the top plate 61.

A key setting recess 66 is formed on the upper surface of the top plate 61, and a key setting projection 67 is formed protruding from the center thereof.

The magnet case 7 is shown enlarged in FIGS. 8 and 9. 8th
The figure is a cross-sectional view thereof, and FIG. 9 is a side view in the direction of arrow D. At the center is a shaft hole 76 through which the rotating shaft portion 62 of the rotor 6 is rotatably inserted, and around the shaft hole 76 is the magnet 72 and its pressing spring 7.
Five □ magnet storage holes 71 are formed to accommodate magnets 3, and a protrusion engaging groove 74 is formed in which the rear protrusion 65 of the rotor 6 is housed, and the spring b that presses the spring b is housed in the upper surface. Further, the rear surface is provided with three latch storage grooves 77 for storing the latches 8.

The latch 8 is shown in FIGS. 10 and 11. Figure 10 shows latch 8
11 is an enlarged cross-sectional view of FIG. 11, which is a side view of the arrow E. A key-shaped engagement portion 8 forms a guide plate 82 with a fitting disc 81 that is always fitted into the latch storage groove 77 of the magnet case 7, and engages with the protrusion 44 at the tip of the wheel nut 4.
3 is formed.

Each part of this wheel lock 5 is formed as described above, and when these parts are assembled, the rear protrusion 65 of the rotor 6 fits into the protrusion retaining groove 74 of the magnet case, and the retaining groove 74
The protrusions 65 are pushed by the springs 75 housed inside, and the three latch holders 63 of the rotor 6 are engaged with the three latches housed in the magnetic case, respectively, as shown in FIG. It is in a position to be inserted into the back of the partner. The magnet 72 housed in the magnet storage hole 71 of the Yagnet case 7 is pressed by the spring 73, and the leading end of the magnet 72 enters the magnet retaining hole 64 of the rotor 6. ' and the magnet case 7 are integrally connected. In each of the above drawings, five magnet storage holes 71 of the magnet case 7 and five magnet engagement holes of the rotor 6 are formed, but the magnets 72 used are
are considered to be two or three. To unlock the main wheel lock 5, the magnet 72 is repelled and the magnet 72 is moved against the spring 73 into the magnet storage hole 7 of the magnet case 7.
1, release the engagement between the magnet retaining hole 64 of the rotor 6 and the magnet 72, rotate the rotor 6 freely with respect to the magnet case 7, and latch the latch presser 63 of the rotor 6. Since the position is shifted from the back of the key 8, this is to minimize the probability of a match between the repulsion magnet of the key and the magnet 72 of the magnetic case 7 (that is, to make it impossible to use a matching key). In other words, with this wheel lock, if the key whose position matches the magnet installed in the wheel lock (the magnet built into the magnetic case) is placed in the mating recess 66 on the top surface of the rotor 6, it will lock into the magnetic case 7. Since the magnet 72 is repelled and inserted into the magnet storage hole 71 of the magnet case 7,
The rotor 6 is not in a free rotation state, so if the key is rotated out of position, the latch presser 63 of the rotor 6 will be displaced from the rear position of the latch 8. This state is shown in FIG. That is, in the case of unlocking, if the wheel lock 5 is pulled out in this state, the latch 8 is pushed outward by the protrusion 44 at the top of the wheel nut 4 as shown by the dotted line in the figure, so the wheel nut 4
The flange 44 disengages from the key-shaped engagement part 83 of the latch 4.8 and the wheel lock 5 is removed from the wheel nut 4. Therefore, since the hexagonal part of the wheel nut is exposed, the nut 4 can be attached to the wheel by removing it from the bolt with a spanner. When locking, insert the outer cylinder 51 of the wheel lock 5 into the wheel nut 4, in the opposite direction to the unlocking process, place the tip of the flange of the wheel nut 4 against the tip of the latch 8ρ built into the wheel lock 5, and use the key to lock the lock. If the rotor 6 is rotated, the latch holder 63 of the rotor 6
is rotated, and the L-shaped space 56 on the outer periphery of the magnet case 7 is rotated.
The back of latch 8 will be empty, so latch 8
is pushed by the flange 44 of the wheel nut 4 to open as shown by the dotted line in FIG. As shown in the figure latch 8), attach the latch 8 to the flange 4 of the wheel nut 4.
4. When the key is removed, the rotor 6 is pressed by the spring 75 in the protrusion engagement groove 74 of the magnet case 7 and rotates, and the latch holder 63 of the rotor 6 is compressed inside the building and the protrusion of the wheel nut 4 is rotated. The latch 8 is fitted into the outer space of the latch 8 that is engaged with the edge 44, and the latch 8 is not returned to the solid line position in FIG. When the magnets 72 in the magnet storage holes 71 are aligned with the holes 64, the springs 73 push the magnets 72 into the magnet engagement holes 6.1 of the rotor 6, and the rotor 6 becomes unable to rotate relative to the magnet case 7. Therefore, the latch 8 will never come out of the state shown in FIG. 1, and it will be impossible to remove the wheel lock 5 from the wheel nut 4. And as shown in Figure 1,
A groove 41 is provided at the base of the wheel nut 4, and when the wheel lock 5 is locked, the tip of the outer cylinder 51 is inserted into the groove 41.
Since it is designed to fit inside the wheel lock, it is absolutely impossible to forcefully open the locked wheel lock with a screwdriver or the like. As mentioned above, notches 5 are formed in the four spring receivers 57 provided on the upper surface of the intermediate body 54 of the wheel lock outer cylinder 51.
Since 9 is open, magnet case 7 is shown in Figure 1.
Water (or dust) that has entered the magnet storage hole 71 of
flows out from the notch 59 through the inner cavity 52 of the outer cylinder 51 and the gap between the inner cavity 52 and the outer periphery of the wheel nut 4, and from the lower groove 41 of the wheel nut 4.
There is no risk of contaminating the magnet in the magnet case and impairing its magnetic effect.As described above, in the wheel lock according to the present invention, the rotor 6 of the wheel lock 5 is turned with a key. When the wheel nut is inserted into the wheel nut 4, the ridge 44 at the tip of the wheel nut engages with the ratchet 8, and when the key is removed, the rotor rotates and the wheel nut and ratchet 8, that is, the wheel nut and the wheel lock, are firmly engaged. Then, the ratchet 8 is stored in three places, so the wheel nut and wheel lock are meshed and engaged in three places, so they are very firmly combined.Then, when unlocking, use the key to lock the rotor. By simply turning 6, the wheel lock can be easily pulled out from the wheel nut, and the wheel nut can be unscrewed with a spanner.

Furthermore, as mentioned above, when the wheel lock is locked, the tip of the outer cylinder 51 fits into the groove 41 provided at the base of the wheel nut, so it can be pried open without a key even with a tool such as a screwdriver. I'm not afraid at all.

Furthermore, even if rainwater, washing water, etc. penetrate into the rotor 6 as described above, the spring receiving recess 57 at the bottom of the magnet storage hole 71
has a notch hole 59, through which moisture and dust are discharged to the outside of the lock through the gap between the wheel nut and the wheel lock outer cylinder, so there is no risk of contaminating the magnet 72 and interfering with locking/unlocking functions. This is a sturdy and safe wheel lock without nine locks.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view showing an embodiment of the wheel lock according to the present invention, Figs. 2 and 3 show the wheel nut shown in Fig. 1, and Fig. 2 is a cross-sectional view of the upper half thereof. Side view showing,
FIG. 3 is a front view in the direction of arrow A in FIG. 2. 4 and 5 show the wheel lock outer cylinder shown in FIG. 1, FIG. 4 is a cross-sectional view thereof, and FIG. 5 is a side view in the direction of arrow B. Figures 6 and 7 are the first
The rotor shown in the figure is shown, FIG. 6 is its cross-sectional view, and FIG.
The figure is a side view shown in the direction of arrow C. 8 and 9 are enlarged views of the magnet case shown in FIG. 1, with FIG. 8 being a cross-sectional view thereof, and FIG. 9 being a side view indicated by arrow D. 10th and 11th
The figure shows an enlarged view of the latch shown in Figure 1.
Figure 0 is a cross-sectional view thereof, and Figure 11 is a side view taken in the direction of arrow E. FIG. 12 shows the state of the wheel lock device in FIG. 1 before the wheel lock is locked by cutting the wheel lock. 4-m-wheel nut, 6--rotor. 7--Magnetic case, 8-M-Latch. 41-m-Outer cylinder fitting groove, 44--Wheel nut ridge, 51--Wheel lock outer cylinder. 52--one bottom lumen, 53--one head lumen. 54-m-outer cylinder intermediate body, 57--spring receiving recess. 59--Nothing missing, 63--Latch presser. 64-m-magnetic engagement hole, 65--one protrusion. 6 Row - Key matching recess, 71 - Magnet storage hole. 72-11 magnet), 73---magnetic pressure spring. 74--One retaining groove, 75--One protrusion pressing spring. 83-m-Key-shaped engagement portion. Applicant Ko Ai Co., Ltd. Higashi/Figure 4 Domo 5 Figure Base 4 Figure, 2 Station, 7 Figure, Kan 7 Otsu Figure q times Moa concave 4.77 4'°7

Claims (2)

[Claims] (1) The rotor holder has a rotor holder on the head, and the rear part is a cylindrical body, and the wheel lock outer cylinder 51 encloses the wheel nut 4. Matching recess 6
6 and a magnet case 7 fixed to the wheel lock outer cylinder 51 and rotatable with the rotor 6.
The wheel lock outer cylinder 51 is partitioned by an intermediate body 54 and the wheel nut 4
A magnet spring receiving recess 57 is provided on the top surface of the intermediate body 54 and has a through cutout 59 on the back side thereof, and has a bottom cavity 52 that encloses the rotor i and a head cavity 53 that encloses the rotor i. 6 has a locking recess 66 on its top surface, the same number of latches 8 on its side, and is inserted between the side surface of the latch 8 and the wheel lock outer cylinder 51 to engage the wheel nut 4 and the latch 8. A latch holder 63 that holds the latch holder 63 and a magnet 72 that is housed in the magnet case 7 on the back of the latch holder 63.
, a magnet retaining hole 64 in which the head of the magnet 72 engages, and a protrusion 65 that fits into the engagement groove 74 of the magnet case 7 . The latch 8 is secured by a protrusion engaging groove 74 that accommodates a spring 75 that presses the protrusion 65, and a magnet housing hole 71 that accommodates the magnet 72 that engages with the rotor 6 and its pressing spring 73. A wheel locking device for an automobile, characterized in that the latch 8 forms a key-shaped engagement portion 83 that engages with the pointed edge 44 of the wheel nut 4. (2) The bottom of the spring receiving recess 57 of the magnetic pressure spring 73 provided in the intermediate body 54 of the wheel lock outer cylinder 51 is made to communicate with the gap between the wheel lock outer cylinder 51 and the wheel knurl. The automobile wheel locking device according to item 1. 1! +1 -4? No l+-+J--, L J 8M7
An automobile wheel lock device according to claim 1 or 2, wherein a groove 41 is provided into which the lower end of the wheel locking device is provided.