JPS63573A - Unlocking control apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention provides an unlocking mechanism for unlocking a locking mechanism when it is confirmed that a code preset internally and a code input from the outside match. This invention relates to a lock control device.

(Prior Art) This type of device has been proposed in Japanese Patent Application No. 60-177294, and an example thereof is shown in FIG.

An unlock code is set in advance in the code setting circuit 10 shown in the figure, and in the code verification circuit 12, an input code given from the outside via a terminal 14 is verified against the setting code.

When the matching circuit 12 confirms that the two codes match, the actuator 16 unlocks the locking mechanism 18.

Further, a relay 20 is inserted between the code matching circuit 12 and the terminal 14, and the relay 20 is turned on and off by operating a cancel switch 22.

By turning on the relay 20, the code input from the terminal 14 to the code matching circuit 12 is blocked, and this blocked state is canceled by turning the cancel switch 22 off.

Since unlocking of the locking mechanism 18 is prohibited by blocking code input from the outside by operating the cancel switch 22, theft prevention is improved by providing the cancel switch 22 in a position where it is difficult to find. becomes possible.

(Problem to be Solved by the Invention) However, in this type of device, once the cancel switch 22 is discovered, the locking mechanism 18 can be unlocked by inputting a code, which further improves theft prevention. That was what was requested.

The present invention has been made in view of the above-mentioned conventional problems,
The purpose is to further improve the anti-theft performance of the proposed device.

(Means for Solving the Problems) In order to achieve the above object, the present invention, as shown in FIG. An unlocking operation is performed to unlock the locking mechanism C when the code matching means confirms that the two codes match. means d; unlocking operation prohibition/release means e for prohibiting the unlocking operation of the locking mechanism C and canceling the prohibition; and a command for prohibiting the unlocking operation of the locking mechanism C in response to the operation of the compatible key piece f. and an unlocking operation prohibition/cancellation command means q for giving a command to the unlocking operation prohibition/cancellation means e to cancel the inhibition of the unlocking operation.

(Function) - In the present invention, the locking mechanism C can be unlocked by inputting a code only when the key piece f that is compatible with the unlocking operation prohibition/release command means q is operated.

(Embodiments) Hereinafter, preferred embodiments of the apparatus according to the present invention will be described based on the drawings.

A first embodiment is shown in FIG. 3, and the description of the same members as those in FIG. 2 described above will be omitted by assigning the same reference numerals.

In this embodiment, the unlocking operation prohibition/release command means q is the cancel switch 22. Noritsubu flop 24° switch 26
and a lock mechanism 28.

Among them, the cancel switch 22 is a movable contact 22a
and fixed contacts 22b and 22G, and the fixed contacts 22b and 22C are connected to the reset manual power R and the set manual power S of the flip-flop 24, respectively.

The Q output of the flip-flop 24 is supplied to the relay 20 (unlock operation prohibition/release means e), and when the movable contact 22a of the cancel switch 22 is operated to the fixed contact 22b side, a code input from the outside is input. is blocked by turning on the relay 20, and when the movable contact 22a is operated to the fixed contact 22c side, the code input blocking state is canceled by turning the relay 20 off.

Here, a switch 26 is inserted between the manual setting S of the flip-flop 24 and the fixed contact 22c of the cancel switch 22, and the switch 26 is connected to the locking mechanism 28.
It is turned on by

Furthermore, a key 30 (key piece f) is inserted into the key hole 28a of this locking mechanism 28, and only when the key 30 is compatible with the locking mechanism 28, the switch 26 can be turned on by operating the key 30. .

Therefore, only when a key 30 compatible with the locking mechanism 28 is inserted into the key hole 28a and the key 30 is operated to turn on the switch 26, the locking mechanism 18 can be unlocked by inputting a code from the outside. is possible again.

As explained above, according to this embodiment, when the unlocking operation of the lock mechanism 18 by inputting a code from the outside is once prohibited by operating the cancel switch 22, the prohibition is prohibited in accordance with the lock mechanism 28. It will not be released unless the key 28 is inserted and operated.

Therefore, only a person who owns the key 28 that is compatible with the locking mechanism 28 can unlock the locking mechanism 18 by inputting the code, and therefore, theft prevention is significantly improved.

A second embodiment is shown in FIG. 4, and description of the same members as in FIG. 3 will be omitted by assigning the same reference numerals.

In this embodiment, the steering wheel of the vehicle is FM unlocked by the locking mechanism 18, and the locking mechanism 18 can also be locked and unlocked by a key 30 which is used as the ignition key of the vehicle.

Each member except the cancel switch 22 is housed in an anti-theft case 32, and once the anti-theft case 32 is assembled to the steering column, it cannot be disassembled.

FIG. 5 shows a specific configuration of this embodiment, in which a steering shaft 36 is provided in the steering column 34.
is inserted.

A collar 38 is externally fitted and fixed to the steering shaft 36, and a lock groove 40 is provided on the side circumferential surface of the collar 38.
is formed.

The tip of a lock pin 42 is inserted into the lock groove 40 from inside the anti-theft case 32 when the steering wheel is locked, and the lock pin 42 is attached to a hanger 44.

The hanger 44 is biased by a spring 46, and is driven by a half-moon-shaped cam 48 in the direction in which the lock pin 42 moves forward and backward relative to the collar 38.

The cam 48 is attached to the key operating shaft 50,
An ignition switch in a switch box 52 is operated by a key operation shaft 50.

The key operation shaft 50 is connected to a key cylinder 54 of the lock mechanism 28, and is rotated when the compatible key 30 is inserted into the key cylinder 54 and rotated.

As a result, the lock pin 42 is retracted from the collar 38, the steering lock is released, and the ignition switch in the switch box 52 is operated.

Further, an operating cylinder 56 is fitted onto the key cylinder 54 as in the case of Japanese Patent Application Laid-Open No. 60-176850, and its upper portion protrudes from the anti-theft case 32.

A plunger shaft from the actuator 16 inside the anti-theft case 32 is inserted into a lock groove formed on the lower side surface of the operating cylinder 56, and the actuator 16 is connected to a board 58 also housed in the anti-theft case 32.

Electronic components, a relay 20, a flip-flop 24, and a switch 26 that constitute the code storage circuit 10 and the code verification circuit 12 are mounted on this board 58, and when the input code matches the unlock code, the actuator 16 is activated. The plunger shaft is retracted from the lock groove of the operating cylinder 56.

This makes it possible to rotate the operation cylinder 56.
By this operation, the cam 48 is rotationally driven via the key cylinder 54.

Therefore, the above operation of the operation cylinder 56 enables the steering lock to be released and the ignition switch to be operated, and the key 30 (ignition key) is not required at this time.

Note that the operating cylinder 56 is held back from the key cylinder 54 by a tumbler 60, and the key cylinder 54
The tumbler 60 is activated by the key 30 inserted into the operating cylinder 5.
6, the key cylinder 54 becomes rotatable relative to the operating cylinder 56.

As explained above, according to this embodiment, each member except the cancel switch 22 is attached to the anti-theft case 32 which cannot be disassembled.
Once the unlocking of the steering wheel by inputting a code from outside is prohibited by operating the cancel switch 22, this prohibited condition will be disabled unless you own the ignition key (key 30) of the vehicle. cannot be canceled.

Therefore, it is possible to reliably prevent vehicle theft.

(Effects of the Invention) As explained above, according to the present invention, once unlocking by inputting a code from the outside is prohibited, the prohibition cannot be canceled unless a key piece suitable for the device is prepared. Illegal unlocking by third party code input can be reliably prevented, and theft prevention can therefore be significantly improved.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the configuration of the present invention, FIG. 2 is an explanatory diagram of the configuration of a conventional device, and FIG. 3 is a preferred first diagram of the device according to the present invention.
FIG. 4 is a structural explanatory diagram showing a preferred second embodiment of the apparatus according to the present invention, and FIG. 5 is a sectional view showing a specific structure of the second embodiment. 10... Code setting circuit 12... Code verification circuit 16... Actuator 18... Locking mechanism 20... Relay 22... Cancel switch 24... Flip-flop 26... Switch 28...・Lock mechanism 30...Key Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] (1) An unlock code setting means in which an unlock code is set in advance; a code verification means for comparing a code input from an external source with an unlock code preset in the unlock code setting means; an unlocking operation means for unlocking the locking mechanism when a match is confirmed by the code matching means; an unlocking operation prohibition/cancellation means for prohibiting the unlocking operation of the locking mechanism and canceling the prohibition; Unlocking operation prohibition/cancellation command means for giving the unlocking operation prohibition/cancellation means a command to prohibit an unlocking operation of the locking mechanism and a command to cancel the prohibition of the unlocking operation in response to the operation of a compatible key piece; An unlocking control device comprising: .