JPH0411178A - Double lock device - Google Patents

Abstract

PURPOSE:To save electric power by providing a mechanical lock device and an electronic lock device so that a power is fed to an transmitter and a receiver when a key part inserted in the mechanical lock device is turned. CONSTITUTION:There are provided a key means 2 including an oscillator 3 and a key part 4, a steering lock device 5 and an electronic lock device 6. Further, the means 2 comprises a battery, a transmission button, a stationary contact 14 and an infrared ray generator 16, and the device 5 comprises a pair of contacts 34, and a pair of infrared ray receivers 35. After the key part 4 is inserted in the device 5, and the key part 4 is turned so as to unlock the device 5, when the key part 4 is further turned so as to allow the contacts 34 and the contact 14 to make contact with each other, the generator 16 and the receiver 35 are energized. Accordingly, a starter motor or the like in the device 6 is operated in association with a received remote control signal delivered from the device 3.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a locking device, in particular to a dual locking device combining a mechanical locking device and an electronic locking device.

For example, as shown in Japanese Unexamined Patent Publication No. 173354/1982, a key that generates an optical signal containing a predetermined code signal and a key that generates a matching signal when the optical signal emitted from the key is received. Anti-theft devices having specific code discrimination means are well known. This anti-theft device has a picking signal output means, and when the lock is unlocked without generating a matching signal from the specific code discrimination means, it is determined that the lock has been unlocked illegally and an alarm device is activated. However, if the lock is unlocked while a light signal emitted from the key is received and a matching signal is generated from the specific code discrimination means, the alarm device will not operate.

Furthermore, Japanese Patent Application Laid-Open No. 174476/1982 discloses a key that generates an optical signal including a predetermined code signal, and a specific code that is provided in a lock device and generates a matching signal when the optical signal emitted from the key is received. An electronic control device for a house, a car, etc. is disclosed that has a determining means and a controlled section that is activated by a matching signal from the specific code determining means. This electronic control device includes a battery, a switch means, a power switching circuit connected to the battery and the switch means, a specific code generating means operated by the output of the power switching circuit, and a specific code generated by the output of the specific code generating means. and a light emitting element that generates an optical signal. The optical signal emitted from the light emitting element is received by the light receiving element connected to the specific code discrimination means. The specific code discrimination means sends an output to the controlled section when the signal received by the light receiving element matches the preset code signal.

Further, as shown in Japanese Patent Publication No. 56-11032, a locking device is known which includes a locking mechanism that operates a locking part by electrical means and a key mechanism equipped with a transmitter. Each of the lock mechanism and the key mechanism is provided with a pulse pattern generator that generates a specific pulse train in synchronization with a predetermined number of clock signals generated over time from the oscillator of the key mechanism. The lock mechanism and the key mechanism are connected to each other by optical transmission means, and when both pulse trains coincide in time, the locking portion of the lock mechanism is unlocked.

As shown in Japanese Patent Publication No. 63-11509, a control device for an automobile buckle is known which includes a transmitting section independent of the automobile and a receiving section mounted on the automobile. The transmitter is
It is equipped with a DC power supply, an oscillator that oscillates messages, and a transmitter that remotely transmits messages in series. Further, the reception unit includes a power supply device, a reception device that receives the five messages, and a storage device that stores only one encoded message.
It has a comparator that compares the received message and the message stored in the memory and generates one signal when the two match. The transmitting device of the transmitting section has a diode that emits infrared rays, and the receiving device of the receiving section has a light receiving diode.

JP-A-64-52970 discloses a key switch having a first electric circuit, a key having a second electric circuit,
By inserting the key into the keyhole of the key switch,
A key device is disclosed having a key switch and contact means provided on the key to electrically connect one electrical circuit to a second electrical circuit. The contact means of this key device consists of a fixed contact portion fixed to the key switch, and a movable contact portion that is biased by a spring so as to elastically protrude from the key and is retractably received in the key. When the key of the key device is rotated to the on position or the start position, the fixed contact and the movable contact come into contact and a light signal is emitted from the key, making it possible to start the engine.

Further, in Japanese Utility Model Application Publication No. 64-33135, there is a spring-biased device which can be freely moved in and out of the gripping portion, and which normally covers the contact.
Furthermore, an electronic key device is disclosed that is provided with a protective cover that exposes the contacts when the keyhole is inserted.

By the way, in the conventional electronic key device described in Japanese Unexamined Patent Publication No. 64-52970, the key is provided with tongue-shaped contacts, so there is a high risk of malfunction due to deformation of the contacts. . Furthermore, in the electronic key device described in Japanese Utility Model Application Publication No. 64-33135, since the contact point is formed on the side of the key,
Keys are difficult to manufacture.

In addition, since the conventional device is always ready to receive remote control signals, it is not possible to save power and the lifespan of components is short.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks and provide a double lock device that is easy to manufacture and does not cause malfunctions.

The double locking device according to the present invention for carrying out the above functions includes a key means having a key part and a transmitting device that generates a remote control signal including a predetermined code signal, and a mechanical locking device which is unlocked by the key part of the key means. The present invention includes a locking device and an electronic locking device that is activated when receiving a remote control signal generated from a transmitting device of the key means. When the key part inserted into the mechanical locking device is rotated, the contacts of the mechanical locking device and the fixed contacts of the transmitting device come into contact and power is supplied to the transmitting device,
A transmitting device generates a remote control signal. The electronic locking device has a receiver that is ready to receive after the key is inserted into the mechanical locking device and rotated. The key means includes a slide member that, when the key portion is rotated, moves to an open position that abuts a cam provided on the mechanical locking device and exposes a fixed contact of the transmitting device.

Earth - ■ First, insert the key into the mechanical locking device and turn it to unlock the mechanical locking device. As the key portion rotates, the cover of the key means moves to an open position where it abuts a cam provided on the mechanical locking device and exposes the fixed contact of the transmitting device. When the key is further rotated, the contacts of the mechanical locking device come into contact with the fixed contacts of the transmitter, power is supplied to the transmitter, the transmitter generates a remote control signal, and the receiver is ready to receive signals. becomes. This remote control signal is received by the infrared receiver of the electronic locking device,
Electronic locking device is activated.

1 to 14, an embodiment in which the present invention is applied to a steering lock device for an automobile will be described below.

First, as shown in FIG. 1, the double lock device 1 includes a transmitter 3 that generates a remote control signal including a predetermined code signal.
and a key means 2 having a key part 4, a steering lock device 5 as a mechanical lock device which is unlocked by the key part 4 of the key means 2, and a remote control signal generated from a transmitter 3 of the key means 2. It is equipped with an electronic lock device 6 that is activated when receiving the electronic lock device.

As shown in FIG. 2, the key means 2 includes a battery 9, a substrate 1o, a light guide member 12, and a transmission button 13 housed in a recess 8 formed in the key head 7.
1 is closed. The board 10 has an extension 10a provided with a fixed contact (power supply terminal) 14. Further, the substrate 10 is provided with a plurality of electronic components 15 configuring the transmitting device 3 , an infrared light emitter 16 (remote control signal generating means), a light emitting diode 17 and a switch 18 . A shielding part 19 having a substantially triangular cross section is provided at the front of the infrared emitter 16. The shielding portion 19 is made of a material that is opaque but transmits infrared rays. As shown in FIG. 5, the light guiding member 12 directs visible light emitted from the light emitting diode 17 to the outside of the key head 7 through a hole 7a formed in the key head 7 and a hole 11a formed in the key cover 11. do. Therefore, the light guide member 12 has a pair of protrusions 12a and 1 that fit into the hole 7a of the key head 7 and the hole 11a of the key cover 11.
2b is formed. When the send button 13 is pressed, the switch 18 is turned on. Key part 4 of key means 2
A notch 4a (FIG. 1) is formed to provide a key code. Further, a slide member 20 that covers the fixed contacts 14 of the board 10 is attached to the key part 4. The slide member 20 has a substantially Z-shaped through hole 21 into which the key portion 4 is inserted, a pair of recesses 22 formed parallel to the through hole 21, and a long hole 23 formed in the width direction. The pair of recesses 22 have ends disposed on springs 24 that bias the slide member 20 outward. A pin 25 to be inserted into the through hole 4b formed in the key part 4 is arranged in the elongated hole 23, and the slide member 2
0 movement distance is limited.

As shown in FIG. 2, an elastic metal terminal 26 shown in FIG. 4 is provided between the battery 9 and the substrate 10. The terminal 26 has a terminal body 26a that contacts the negative terminal of the battery 9, and an arm portion 26b that extends from the terminal body 26a and is electrically connected to the key portion 4.

The steering lock device 5 also includes a cover 30 having a cam 31, a collar 32 rotatably disposed within the center opening 30a of the cover 30, and a substrate 33 disposed outside the collar 32 inside the cover 30. has. Board 33
has a pair of elastic contacts 34 and a pair of infrared receivers 35. An infrared transmitting window 36 is formed in the cover 30 at a position corresponding to the infrared receiver 35. window 36
is provided with an infrared transparent material.

6 and 8 show a state in which the key part 4 is inserted into the steering lock group M5 in the lock position. In this state, the fixed contact 14 is in a position angularly forward from the contact 34, and the slide member 20 is in a position covering the fixed contact 14, as shown in FIG. When the key part 4 is rotated from the lock position to the start position, the slide member 20 comes into contact with the cam 31 of the cover 30 as shown in FIGS. 7 and 9, and the spring 24 is activated as shown in FIG. It is moved inward against the elasticity. Furthermore, when the key part 4 is rotated,
The fixed contact 14 comes into contact with one of the contacts 34, and the infrared ray emitter 16 emits infrared rays containing a predetermined code.

FIG. 12 shows a remote control signal generating circuit built into the key means 2 and generating infrared rays. This infrared light emitting circuit has a transmission control circuit 80 configured by, for example, a one-chip microcomputer. Capacitor 8 for battery 9
2 are connected in parallel, and the positive terminal of the battery 9 is connected via a first diode 81 to a first input terminal of the transmission control circuit 8o. The first diode 81 is the fixed contact 14
This has the effect of preventing voltage from being applied to the battery 9 when power is applied from outside through the battery. It is also desirable to use a Schottky barrier diode to minimize voltage drop across the diode during battery operation. Further, a capacitor 83 is connected to the first input terminal. The negative terminal of the battery 9 is connected to the switch 18. It is connected to a third input terminal of the transmission control circuit 80 via a third diode 84 and a capacitor 85. third diode 84
When supplying power from the outside through the fixed contact 14,
A third input terminal of the transmission control circuit 80.

It has the effect of adjusting the level of voltage applied to the

The negative terminal of the battery 9 and the capacitor 82 are connected to the second input terminal (2). The cathode of the third diode 84 is connected to the second input terminal 2 via a resistor 86. Further, a parallel circuit including a resistor 87 and a diode 88 is connected between the second input terminal I2 and the third input terminal I2. Input end. and I5 are connected by a resistor 89. The capacitor 85 and the resistor 87 constitute a trigger circuit, and when the switch 18 is turned on or when a voltage is applied to the fixed contact 14, a trigger pulse is applied to the first input terminal ■□.

The output terminal ○□ of the transmission control circuit 80 is connected to the base (control terminal) of a transistor 91 (switching element) via a resistor 90. The emitter of transistor 91 is connected to fixed contact 14 and switch 18 . Further, the fixed contact 14 is connected to the first input terminal 11 via a second diode 92. The second diode 92 has the function of preventing current leakage from the battery 9 to the outside through the fixed contact 14 when the battery 9 is used. The collector of transistor 91 is connected to infrared emitter 16 via resistor 93.

The infrared emitter 16 is a light emitting diode. Further, a light emitting diode 17 and a resistor 94 are connected between the fixed contact 14 and the output terminal 02.

The input terminals 03 and 03 are connected to the ROM 95, and the output terminal 03 is grounded.

In the above configuration, when the switch 18 is turned on when remotely controlling the lock device that can receive infrared rays at all times, the battery 9, the switch 18, and the third diode 84
A trigger pulse is applied to the third input terminal I3 through the capacitor 85 and the capacitor 85.

Therefore, a predetermined code pulse is generated from the output terminal 01 according to the program stored in the ROM 95. Therefore, the transistor 91 turns on and off, and the infrared light emitter 16
generates an infrared signal. At the same time, output terminal 02
generates a low level signal for a certain period of time, so the light emitting diode 17 lights up. Therefore, the operator can recognize the operation of the infrared light emitter 16 by the lighting of the light emitting diode 17. Also, instead of turning on switch 18.

When a voltage is applied to the fixed contact 14, the same operation as described above is performed.

When the key part 4 is inserted into the steering lock device 5,
The circuit shown in FIG. 13 is constructed. That is, an electronic circuit 15 including a transmission control circuit 80, an infrared emitter 16, and a battery 9.
The negative terminal of the steering lock device 5 is connected to the key portion 4, and the key portion 4 is grounded through a conductive metal such as a tumbler (not shown) of the steering lock device 5. Further, the fixed contact 14 is connected to a power source 96 of the vehicle. One end of the drive control circuit 41 is connected to the power supply 96
and the other end is grounded.

FIG. 14 shows a circuit diagram of the electronic locking device 6.

The electronic lock device 6 includes a sensor circuit 40 , a drive control circuit 41 that receives a signal from the sensor circuit 40 , and a lock control circuit 42 that is activated by the output of the drive control circuit 41 .
and has. Drive control circuit 41 is connected to ignition switch 37.

The sensor circuit 40 includes a one-chip IC infrared receiver 50 (receiver) that becomes ready to receive light when the ignition switch 37 is turned on, and a drive control circuit that amplifies the infrared signal received by the infrared receiver 50. 41.

Amplification circuit 51 has two transistors 52 and 53. The positive line 54 of the sensor circuit 4o is connected to the drive control circuit 4.
1, and the negative line 55 of the sensor circuit 40 is grounded. Smoothing capacitors 56 and 57 are connected in parallel to the positive line 54 and the negative line 55. In addition, the positive line 54 is a display light emitting diode 5.
8 and a resistor 59 to the output port 02 of the drive control circuit 41 .

The emitter of the transistor 52 is connected to the positive line 54, the base is connected to the infrared receiver 5o, and the collector is connected to the base of the transistor 53. The emitter and collector of the transistor 53 are connected to the input port L of the drive control circuit 41 via a diode 60 and to the base of the transistor 62 via a diode 61, respectively. The emitter of the transistor 62 is connected to a power supply, and the collector is connected to an input port of the drive control circuit 41 via a reset circuit 63. The reset circuit 63 includes a resistor 64 connected between the collector of the transistor 62 and the ground, a capacitor 65 connected between the collector of the transistor 62 and the input port I, and a circuit between the input port I5 and the ground. It has a resistor 66 and a diode 67 connected in parallel.

The drive control circuit 41 is a CPU composed of a one-chip microcomputer, and generates an actuation signal from the output port ○ or 04 when the signal received by the sensor circuit 40 matches a predetermined code signal. A ROM 68 is connected to input ports -hxz to -4 of the drive control circuit 41. R.O.
A code number is stored in M68. Coils of relays 70 and 71 are connected to output ports 03 and 04 of drive control circuit 41 via resistors 72 and 73, respectively.

The contacts of relay 70 are connected between the power source and starter motor 74 . Similarly, the contacts of relay 71 are connected between the power source and fuel supply pump 75.

Relays 70.71 constitute load 76.

In the above configuration, when the switch 18 of the key means 2 is operated with the ignition switch 37 turned on, the infrared light emitted from the infrared emitter 16 is received by the infrared receiver 50. When the infrared receiver 50 receives an infrared signal, the signal generated by the infrared receiver 50 is supplied to the input port (2) of the drive control circuit 41 via the amplifier circuit 51. At the same time, the amplifier circuit 51
When is turned on, transistor 62 is turned on.

Therefore, the drive control circuit 41
A trigger signal is applied to the input port of the drive control circuit 41, and the drive control circuit 41 is activated. Therefore, the drive control circuit 41 stores the light reception signal supplied to the input port (1) using a storage means. At the same time or after this, the drive control circuit 41
The fixed number stored in OM68 is RAM (Ran
dom Access Memory) or the like.

Here, the comparison means provided in the drive control circuit 41 compares the code signal included in the signal from the remote control transmitting device 1 supplied through the infrared receiver 50 and the code signal stored in the ROM 68. be done. When the received code signal and the read code signal do not match, output port 03 or ○. There is no output from . Conversely, when these fixed numbers match, an output is generated from the output port 03 or O of the drive control circuit 41, and the starter motor 74 and fuel supply pump 75 are operated.

In the above configuration, when the key portion 4 is inserted into the steering lock device 5 and rotated, the steering lock device 5 is unlocked. As the key part 4 rotates, the ignition switch 37 is turned on, and the key cover 11 of the key means 2 comes into contact with the cam 31 provided on the steering lock device 5 to expose the fixed contact 14 of the key means 2. Move to open position. When the key part 4 is further rotated, the contact 34 of the steering lock device 5 and the fixed contact 14 of the key means 2 come into contact, power is supplied to the key means 2, and the infrared generator of the key means 2 generates a remote control signal. do. This remote control signal is received by the infrared receiver 50 and is used to control the starter motor 74 of the electronic locking device 6 and the fuel supply pump 7.
5 is activated.

The embodiment shown in FIG. 12 can be modified. In place of the third diode 83, a voltage dropping semiconductor such as a transistor or other electrical component may be used. Further, in the above embodiment, an example is shown in which infrared rays are used as a remote control signal, but in addition to infrared rays, electromagnetic waves such as radio waves or sound waves may also be used.

11. As described above, the present invention provides a double lock device in which the contact points are not deformed and the key portion is easy to manufacture. This double locking device enables the receiver to receive signals only when the key is rotated, so it is possible to save power and extend the life of parts.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a double locking device according to the present invention;
The figure is an exploded perspective view, Figure 3 is an assembled view of the key means, Figure 4 is a perspective view of the terminal, Figure 5 is a partial sectional view of the key means, and Figure 6 is a diagram showing the key means inserted into the steering lock device. FIG. 7 is a front view showing the key means rotated to the start position; FIG. 8 is a cross-sectional view showing the key means inserted into the steering lock device; FIG. 9 is a front view showing the state in which the key means is inserted into the steering lock device;
The figure is a sectional view showing the key means rotated to the start position, FIG. 10 is a partial front view of the key means with the fixed contacts covered by the slide member, and FIG. 11 is the state with the fixed contacts exposed. Partial front view of the key means in the first
2 is an electric circuit diagram of the key means, FIG. 13 is a circuit diagram showing the electrical configuration of the key means, mechanical lock device, and electronic lock device, and FIG. 14 is an electric circuit diagram of the electronic lock device. Figure 3 29. key means, 300 transmitter, 41. Key part, 51
．． Steering lock device (mechanical lock device), 6.
, electronic locking device, 141. Fixed contact, 166. Infrared generator, 2o1. Slide member, 311. Cam, 34
6. Contact, 50. . Infrared receiver (receiver), Figure 4, Figure 5, Figure 10, Figure 11

Claims (2)

[Claims] (1) A key means having a transmitting device and a key part that generates a remote control signal including a predetermined code signal, a mechanical lock device unlocked by the key part of the key means, and a remote control signal generated from the transmitting device of the key means. and an electronic locking device that is activated when a remote control signal is received, and when the key part inserted into the mechanical locking device is rotated, the contacts of the mechanical locking device and the fixed contacts of the transmitting device are connected. Upon contact, power is supplied to the transmitting device, the transmitting device generates a remote control signal,
1. A double locking device, wherein the electronic locking device has a receiver that is ready to receive the key after the key is inserted into the mechanical locking device and rotated. (2) According to claim (1), the key means has a slide member that, when the key portion is rotated, moves to an open position where it comes into contact with a cam provided on the mechanical locking device and exposes a fixed contact of the transmitting device. Dual locking device as described.