Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
  • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
  • B60R25/02—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism
  • B60R25/021—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch
  • B60R25/0215—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch using electric means, e.g. electric motors or solenoids
  • B60R25/02153—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch using electric means, e.g. electric motors or solenoids comprising a locking member radially and linearly moved towards the steering column

Definitions

• the present invention relates to an electric steering lock device that is mounted on an automobile or the like and includes a so-called deadlock mechanism.
• the electric steering lock device 100 includes a frame 101 and a cover (not shown) that covers the upper surface of the frame 101.
• the frame 101 includes a frame main body 102 and a rod guide portion 103 protruding from the frame main body 102.
• a drive motor (not shown) controlled by the operation of the ignition key of the person carrying the electronic key, and a cam that rotates by the drive of the drive motor.
• Members (not shown) and the like are accommodated.
• a lock rod 105 whose upper end protrudes on the frame body 102 is movably accommodated.
• the lock rod 105 is composed of an upper rod portion 105a and a lower rod portion 105b connected to the upper rod portion 105a, and is configured to lock the steering shaft 110 by the rotation of the cam member (not shown). 1) and the unlocked position (position in Fig. 2) allowing the steering shaft 110 to rotate.
• the deadlock mechanism 120 includes a lock pin 121 housed in a position below the fragile portion 106 of the rod guide portion 103, a first spring 122 that urges the lock pin 121 in the protruding direction, and a lock pin 121 A lock control member 123 that restricts movement in the protruding direction, a second panel 124 that urges the lock control member 123 upward, and a stopper 125 on the frame body 101 side that restricts upward movement of the lock control member 123. And first and second locking grooves 126 and 127 formed in the upper rod portion 105a.
• Patent Document 1 Japanese Patent Application Laid-Open No. 2004-231122
• the deadlock mechanism 120 of the conventional electric steering lock device 100 allows the person who performs unauthorized unlocking to apply an external force exceeding a predetermined value to the rod guide portion 103 and the lock rod 105. It works only for illegal attacks that act. Therefore, if a cover (not shown) is illegally attacked without applying an external force exceeding a predetermined value to the rod guide portion 103 and the lock rod 105, the rod guide portion 103 and the lock rod 105 do not operate. If the cover (not shown) is removed from the frame body 102 in a state where the deadlock mechanism 120 is not activated, the possibility of unauthorized unlocking increases, and this must be prevented.
• the cover in order to deal with an illegal attack on the cover, it is considered that the cover can be configured with a very strong member in terms of force S, weight, and cost. At the same time, there is a limit to the structure for preventing the cover from breaking. Therefore, it is not satisfactory as a means of dealing with illegal cover attacks.
• an object of the present invention is to provide an electric steering lock device that can reliably cope with an unauthorized attack that illegally opens a cover.
• a first aspect of the present invention includes a drive mechanism provided in a frame covered with a cover, and a lock rod movably disposed in the rod guide hole of the frame. And a mechanism that is moved between a steering lock position and a steering unlock position by the drive mechanism, and a deadlock mechanism that locks the lock rod to a steering lock position.
• a locking portion provided on the lock rod; a lock pin disposed on the frame side and biased to a lock position side to be locked to the locking portion; and a lock position of the lock pin fixed to the cover
• a trigger member that prevents movement of the trigger member when the cover moves in a direction away from the frame.
• the lock pin is configured to shift in a pin releasing direction so that the lock pin is locked to the locking portion, and the cover is surrounded by a portion that surrounds the fixed portion of the trigger member and the frame.
• an electric steering lock device in which a weak portion is provided at a peripheral portion of the door.
• a second aspect of the present invention is a drive mechanism portion on a frame covered with a cover, and a lock rod that is automatically disposed in a rod guide hole of the frame, and is provided by the drive mechanism portion.
• a mechanism that is moved between a steering lock position and a steering unlock position, and a deadlock mechanism that locks the lock rod in a steering lock position, and the deadlock mechanism is provided in the lock rod.
• a locking member that is disposed on the frame side and is urged toward the locking position to be locked to the locking portion; and a trigger member that is fixed to the cover and prevents movement of the locking pin to the locking position And when the cover moves in the direction of detachment from the frame, the trigger member force S changes in the pin release direction, Kkupin with is configured to lock with the locking portion, said cover to provide an electric stearyl ⁇ ring-locking device is also configured strength weaker than the frame.
• the cover may be formed of a material that is weak in strength, it contributes to weight reduction and cost reduction.
• At least one of the surfaces of the trigger member and the lock pin that contact each other may be provided on a tapered surface.
• the urging force that urges the lock pin toward the lock position causes the taper surface to be urged.
• the trigger member moves in the pin release direction because it acts on the trigger member via the lock pin force S locks the lock rod. Therefore, it is possible to cope with an illegal attack before the cover is removed from the frame or when the cover is not removed from the frame.
• the weak portion of the force bar provided in the vicinity of the fixed portion of the trigger member is provided in a portion surrounding the spring receiving portion that urges the lock rod toward the steering lock position. You may do it.
• the cover may be made of synthetic resin and the trigger member may be formed in a body.
• the trigger member can be easily manufactured by integrally molding the trigger member at the time of injection molding of the cover.
• FIG. 1 is a cross-sectional view showing a steering lock state of a conventional electric steering lock device.
• FIG. 2 is a cross-sectional view showing a steering unlock state of a conventional electric steering lock device.
• FIG. 3 is a cross-sectional view when the deadlock mechanism is operated in a steering unlocked state.
• FIG. 4 is a cross-sectional view when the deadlock mechanism is operated in a steering lock state.
• FIG. 5 is a plan view of the electric steering lock device according to the embodiment of the present invention.
• FIG. 6 is a front view of the electric steering lock device according to the embodiment of the present invention.
• FIG. 7 is a bottom view of the cover, showing an embodiment of the present invention.
• FIG. 8 shows an embodiment of the present invention and is a cross-sectional view taken along line 8-8 in FIG.
• FIG. 9 shows an embodiment of the present invention and is a cross-sectional view taken along line 99 of FIG.
• FIG. 10 shows an embodiment of the present invention and is a cross-sectional view taken along line 10-10 of FIG.
• FIG. 11 shows an embodiment of the present invention and is an enlarged view of a portion E in FIG.
• an electric steering lock device 1 that is an electric steering lock device includes a frame 2 and a cover 3 that covers the upper surface of the frame 2.
• the frame 2 and the cover 3 are assembled by fitting a plurality of fitting claws 4 provided on the outer peripheral edge of the frame 2 and a plurality of fitting holes 5 provided on the outer peripheral edge of the cover 3. Yes.
• the cover 3 is formed of a synthetic resin having a mechanical strength weaker than that of the frame 2, and also has a force with the upper surface portion 3a and the four side surface portions 3b.
• the following trigger member 25 is integrally provided on the upper surface portion 3a of the cover 3, the following trigger member 25 is integrally provided.
• a spring receiving portion 6 is provided in the vicinity of the fixed portion of the trigger member 25.
• an inner fragile portion 7 that is weak in strength is formed so as to surround both the fixing portion of the trigger member 25 and the outer periphery of the spring receiving portion 6.
• an outer fragile portion 8 that surrounds the outer periphery of the inner fragile portion 7 and a part of which is also used as the inner fragile portion 7 is formed on the side surface portion 3b of the cover 3, two linear weakened portions 9 are formed between the respective fitting holes 5 and the lower end edge.
• an ignition key (not shown) that can be rotated by a person carrying the electronic key, and the drive control is performed by the rotation operation of the ignition key.
• Motor unit 10 a worm gear (not shown) fixed to the output shaft of the motor unit 10, a worm wheel 11 that fits the worm gear, and a cam portion 12 that is integrally attached to the side surface of the worm wheel 11. Etc. are housed.
• the motor unit 10 includes a drive motor (not shown) and a speed reduction mechanism (not shown) that decelerates and outputs the motor rotation.
• the cam mechanism 12 constitutes a drive mechanism.
• a rod guide hole 13 is formed in the frame 2.
• One end side of the rod guide hole 13 opens to the upper surface of the frame 2 covered with the cover 3, and the other end side opens to the outside.
• the lock rod 14 a rod guide? It is placed in L13 so that it can move freely.
• a hanger portion 15 that protrudes in the horizontal direction is provided on the body. The lower surface of the hanger portion 15 is in contact with the cam portion 12.
• a rod spring 16 (shown in FIG. 9) is interposed between the spring receiving portion (not shown) of the lock rod 14 and the spring receiving portion 6 of the cover 3. The lower surface of the hanger portion 15 is pressed against the cam portion 12 by the spring force of the rod spring 16.
• the lock rod 14 moves following the cam surface of the cam portion 12 to lock the steering shaft (not shown) and the steering lock position (the positions shown in FIGS. 6, 8, and 9) and the steering. It moves between steering unlock positions that allow rotation of a shaft (not shown).
• the deadlock mechanism 20 includes a locking hole 21 which is a locking portion provided in the lock rod 14, a pin housing 22 fixed to the lower surface of the frame 2, and a movable inside the pin housing 22.
• Lock pin 23 accommodated in the housing, an urging panel 24 that urges the lock pin 23 toward the lock position, and a trigger whose upper end is fixed to the cover 3 and prevents the lock pin 23 from moving to the lock position.
• a member 25 a member 25.
• the locking hole 21 and the lock pin 23 are positioned at the lock rod 14 force S steering hook position, they are set at positions facing each other. Further, as shown in detail in FIG. 11, the teno surfaces 23a and 25a are formed on the outer peripheral surface of the lock pin 23 and the lower end surface of the trigger member 25, respectively, and the tapered surfaces 23a and 25a are in surface contact with each other. It is locked in this way.
• the trigger member 25 changes in the pin release direction a (shown in FIG. 8) and the lock pin 23 moves in the lock direction b (shown in FIG. 8). The lock pin 23 is locked in the locking hole 21.
• the cover 3 when the cover 3 receives an unauthorized attack, it breaks at each of the weak portions 7, 8, and 9, thereby controlling the breakage of the cover 3. It can reliably deal with unauthorized attacks such as unauthorized opening of the cover 3 and has excellent anti-theft performance. In addition, since it is not necessary to form the cover 3 with a material that is particularly strong in terms of strength, molding processing and the like are facilitated, contributing to weight reduction and cost reduction.
• the inner fragile portion 7 since the inner fragile portion 7, the outer fragile portion 8 and the plurality of lower fragile portions 9 are provided as the fragile portions, the unauthorized attack from the upper surface portion 3a of the cover 3 and the cover 3 Can effectively cope with the attack from the side portion 3b.
• the inner fragile portion 7 can appropriately deal with an illegal attack targeting the lock rod 14.
• the position and the number of the fragile portions are appropriately determined in consideration of the installation conditions of the electric steering lock device 1 on the vehicle, various illegal attack patterns, and the like, which are not limited to the above-described embodiment.
• both surfaces of the trigger member 25 and the lock pin 23 that are in contact with each other are provided on the taper surfaces 25a and 23a. Therefore, even if the cover 3 does not come off from the frame 2, if the trigger member 25 is divided due to an unauthorized attack, the urging force F by the urging spring 24 acts on the trigger member 25 via the tapered surfaces 25a, 23a, and The trigger member 25 is moved in the pin releasing direction a by the component force F1 of the urging force F, and locked to the lock pin 23 force S lock rod 14 by the panel force of the urging panel 24. Therefore, the cover 3 is removed from the frame 2. It is possible to deal with illegal attacks before the cover 3 or the cover 3 is not removed from the frame 2. It should be noted that at least one of the abutting surfaces of the trigger member 25 and the lock pin 23 is provided on a tapered surface!
• the inner fragile portion 7 provided around the fixed portion of the trigger member 25 is provided at a position surrounding the spring receiving portion 6 that urges the lock rod 14 toward the steering lock position. For this reason, when trying to make a hole in a part of the cover 3 in the vicinity of the lock rod 14, the force S at which a part of the cover 3 easily breaks along the inner fragile part 7, a fragment of this force bar 3
• the trigger member 25 and the spring receiving portion 6 are attached to the door. Accordingly, when a part of the cover 3 is broken, the trigger member 25 is immediately moved in the pin releasing direction a by the urging force of the rod panel 16, and the lock pin 23 locks the lock rod 14. Therefore, it is possible to cope with an illegal attack that makes a hole in a part of the cover 3.
• the cover 3 is made of synthetic resin, and the trigger member 25 is formed into a body. For this reason, the trigger member 25 can be easily manufactured by integrally forming the trigger member 25 during the injection molding of the cover 3.
• the other embodiment is different from the cover 3 of the above embodiment in that the cover 3 itself is configured to be weak in strength.
• the configuration other than the cover is the same as that of the above embodiment.
• the cover when a person who performs unauthorized unlocking attacks the cover, the cover is easily deformed / damaged and removed from the frame.
• the trigger member moves in the pin releasing direction at that time, and the lock pin locks the lock rod. Therefore, it is possible to reliably deal with unauthorized attacks that open the cover illegally, and it has excellent anti-theft performance.
• a mechanical electric steering lock that moves the lock rod 14 by using the operation force of the mechanical key force as the power when the present invention is applied to the electric steering lock device 1
• it can also be applied to the apparatus.

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

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Cited By (5)

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Citations (6)

• 2006
  • 2006-10-26 JP JP2006291510A patent/JP4863839B2/ja not_active Expired - Fee Related
• 2007
  • 2007-10-18 DE DE200711002415 patent/DE112007002415T5/de not_active Withdrawn
  • 2007-10-18 WO PCT/JP2007/070318 patent/WO2008050664A1/ja active Application Filing

Patent Citations (6)

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