JPH0420692Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The invention provides an ignition switch and The present invention relates to an ignition switch device for an automobile that operates a steering lock mechanism.

(Prior Art) In recent years, it has been promoted to improve the operability of ignition switches in automobiles by making them keyless. in this case,
Conventionally, an operation knob is provided that turns the ignition switch on and off and unlocks the steering lock mechanism in response to rotational operation.
This operating knob is always locked in a rotationally restrained state, and the locked state of the operating knob is controlled by a predetermined unlocking signal, such as a coded code output in response to the operation of a plurality of push button switches. The configuration is such that it is released when an input is made.

(Problem to be solved by the invention) In the conventional configuration described above, even when the locking state (rotation restraint state) of the operating knob is released, the operating knob itself remains in a position where manual operation is possible at all times, and there is no change in the operating knob itself. There is a problem in that it is not easy to determine whether or not the lock has been released. Therefore, in the conventional configuration, the operating knob may be accidentally turned forcibly even though the operating knob is not released from the locked state, or the operating knob may be manually operated at all times as described above. Due to its location, the operating knob may be turned intentionally by a third party, and in such a case, there is a risk that the mechanism for locking the operating knob may be damaged and malfunction.
This is also unfavorable in terms of security against theft.

The present invention was developed in view of the above circumstances, and its purpose is to provide a control knob that releases the rotational restraint state and becomes rotatable when an unlocking signal is received, in order to achieve keyless operation. Despite the configuration, it is possible to easily determine whether or not the operating knob is in a state where it can be rotated, and there is no risk of the operating knob being rotated while the rotation is restricted, thereby preventing malfunctions. Another object of the present invention is to provide an ignition switch device for an automobile that has effects such as improved safety against theft.

[Structure of the invention] (Means for solving the problems) The ignition switch device for an automobile according to the invention has an operation knob at the tip and is rotatable around the axis and movable back and forth in the axial direction. A knob shaft is provided, and when the knob shaft is rotated by the operating knob, the ignition switch is turned on and off and the steering lock mechanism is unlocked. A body portion having a plate portion and having a concave portion in the end plate portion thereof into which the operating knob is inserted in a non-rotating state, and the knob shaft is always held in a rotation restrained position where the operating knob is inserted into the concave portion. At the same time, when an unlocking signal is input, a drive means is provided for moving the knob shaft to a rotation permissible position where the operation knob is removed from the recess.

(Function) The operation knob at the tip of the knobshaft is always inserted into the recess in the body in a non-rotating state, so it is rotated, that is, the ignition switch is turned on and off and the steering lock mechanism is unlocked. I can't.
When an unlock signal is input from this state, the driving means moves the knob shaft to the rotation permissible position where the operating knob has come out of the recess.
The operation knob can now be rotated, allowing the ignition switch to be turned on and off and the steering lock mechanism to be unlocked.
Therefore, depending on whether or not the operating knob has come out of the recess, it can be easily determined whether or not the operating knob is in a rotatable state.

(Example) First, a first example of the present invention will be described with reference to FIGS. 1 to 7.

In Figures 1 and 2, 1 is the body part,
The end plate 2 located on the front side has multiple operating positions (accessory position, on position, start position) of the ignition switch 3 (described later) and the lock position of the steering lock mechanism 4 (the position of the ignition switch 3). ``ACC'', ``ON'', ``START'', respectively indicating the OFF position)
"LOCK" is applied. In addition, the end plate portion 2
An oblong recess 5 corresponding to the lock position "LOCK" and a through hole 6 located at the bottom of the recess 5 are formed in the recess 5 .

Reference numeral 7 denotes a knob shaft inserted through the through hole 6, which is rotatable around the axis and reciprocated in the axial direction (in the direction of arrow A and the direction opposite to arrow A in FIG. 1). It is being An oval operation knob 8, which is slightly smaller than the recess 5, is connected to the tip of the knob shaft 7.
When the operating knob 8 is in the recess 5 (the state shown by the solid line in FIG. 1), the rotation of the knob shaft 7 is restricted. Also, from the state in which the knob shaft 7 is in the rotation restraint position, the knob shaft 7 is moved in the direction of arrow A and the operating knob 8 is removed from the recess 5 (the state shown by the two-dot chain line in FIG. 1). Now, rotation of the knob shaft 7 is now permitted, and therefore, with the knob shaft 7 in the rotation permitted position, the operation knob 8 can be moved from the lock position "LOCK" to the accessory position "ACC", It becomes possible to rotate to the on position "ON" and the start position "START".

Now, below, the configuration related to the knob shaft 7 will be explained with reference also to FIGS. 3 to 5. That is, the knob shaft 7 is integrally formed with a joint member 9 having a large diameter cylindrical shape at its base end, and a mating hole 10 having a substantially cross-shaped recess shape, for example, is formed on the end surface side of the joint member 9. is formed. Reference numeral 11 denotes a shaft-shaped rotor, which is supported within the body portion 1 so as to be rotatable about its axis. The rotor 11 is integrally formed with a substantially cross-shaped connecting portion 11a that can be engaged with the engaging hole 10 of the coupling member 9 at one end thereof, and is connected to the ignition switch 3 at the other end thereof. A tongue piece 11b to be connected is integrally formed, and a cam 11c is further formed at the intermediate portion.
In this case, the connecting portion 11a is located inside the joint member 9, and thus the knob shaft 7
is provided so as to be engaged with the meshing hole 10 only when it is moved to the rotation permissible position. Therefore, when the knob shaft 7 is in the rotation permissible position (the operation knob 8 is removed from the recess 5),
The rotor 11 is also rotated in accordance with the rotation operation of the operation knob 8, and accordingly, the ignition switch 3 is switched to each operation position by the tongue piece 11b.

12 is a lock bar that constitutes the steering lock mechanism 4 together with the cam 11c of the rotor 11;
This is provided within the body portion 1 so as to be able to reciprocate in a direction orthogonal to the axial direction of the rotor 11, and is normally biased in the locking direction (direction of arrow B) by a compression coil spring 13. The head of the lock bar 12 is provided with a rectangular frame 12a constituting a cam receiving surface, and a cam 11c is positioned within this frame 12a. The lock bar 12 is provided so as to be reciprocated in the directions of arrow B and counter-arrow B in response to the rotation of the rotor 11 accompanying the movement operation. In this case, the lock bar 12 moves to the arrow B only when the operation knob 8 is in the lock position "ROCK".
direction, the steering lock mechanism 4 is locked, and the operating knob 8 is moved to another position "ACC",
Lock bar 1 when in “ON” or “START”
2 is moved in the opposite direction of arrow B, and the steering lock mechanism 4 is unlocked. Further, a slit 12b is formed in the side surface of the frame portion 12a of the lock bar 12, and the steering lock mechanism 4 is locked when the lock bar 12 is moved in the opposite direction of arrow B from the state in which the knob shaft 7 is in the rotation permissible position. When released, the tip of the locking rod 14 enters the slit 12b, thereby restricting movement of the lock bar 12 in the direction of arrow B. The locking rod 14 is rotatably supported around a pin 14a as a fulcrum, as shown in FIGS. 3 and 5, and its base end is connected to the joint member 9 via a tension coil spring 15. The distal end is connected to an appropriate stationary part in the body part 1 via a tension coil spring 16, and as the knob shaft 7 moves, the distal end is positioned outside the slit 12b in a non-restricted position. (See the solid line in FIG. 5) and a restricted position where the tip enters the slit 12b (See the chain double-dashed line in FIG. 5).

A rack gear 17 that extends in the axial direction is integrally formed in an intermediate portion of the knob shaft 7 to protrude, and this rack gear 17 locks the pinion gear 1 only when the operating knob 8 is in the lock position "ROCK".
It is provided so as to mesh with 8. The pinion gear 18 is supported within the body 1 via a support shaft 19, and is rotated in forward and reverse directions by a motor 20 also provided within the body 1. Therefore, when the motor 20 is rotated in the forward or reverse direction while the knobshaft 7 is in the lock position "ROCK", the knobshaft 7 is rotated in the forward or reverse direction.
is reciprocated in the directions of arrow A and counter-arrow A. 2
Reference numeral 1 denotes a locking member for preventing the knob shaft 7 from being forcibly pulled out in the direction of arrow A from the rotation restraint position, and this is comprised of a rigid stopper piece 21a and a flexible hook-shaped bent piece 21b. These are connected and arranged along the inner wall of the body part 1, and the rack gear part 21c formed on the bent piece 21b is meshed with the pinion gear 18. As a result of this arrangement, the locking member 21
The stopper piece 21a is inserted into the locking groove 7 formed in the knob shaft 7 according to the forward and reverse rotation of the motor 20.
It reciprocates between the position where it enters into the locking groove 7a and the position where it is retracted from the locking groove 7a. At this time,
The stopper piece 21a is moved in the direction of the arrow A by the inner wall of the body part 1 and the protruding piece 22 protruding from the body part 1.
When the stopper piece 21a is in the position where it enters the locking groove 7a (when the knobshaft 7 is in the rotation restraint position), the movement of the knobshaft 7 in the direction opposite to the arrow A is restricted. Movement in the A direction is restricted. Reference numerals 23 and 24 denote a light emitting diode and a phototransistor which are provided to face each other across the rack gear 17 portion of the knob shaft 7, and the light emitted from the light emitting diode 23 is transmitted when the knob shaft 7 is in the rotation restraint position and the rotation permissible position. In each state, the phototransistor 24 can receive light, and when the knob shaft 7 is in the middle of each of the above positions, the light is blocked by the rack gear 17 portion.

Now, in FIG. 1, 25 is a control circuit section which together with the motor 20 constitutes the driving means 26. Hereinafter, the electrical configuration of this control circuit section 25 and related parts will be explained with reference to FIGS. 6 and 7. This will be explained with reference to. Note that 27 in FIG. 1 is a connector for the control circuit section 25.

In FIG. 6, numeral 28 is a transmitter worn and carried by the driver of the vehicle, and this transmitter always transmits a predetermined encryption code as a radio wave signal.
Reference numeral 29 denotes a receiver provided on the vehicle side, which outputs a code signal Sa as an unlocking signal corresponding to the radio signal from the transmitter 28. 30 is transmitter 2
8 is a keyless entry switch for backing up when power consumption or malfunction occurs, and this switch has a plurality of push buttons, and depending on its operation, an unlock signal corresponding to the code code is generated. The code signal Sb can be generated. 31 is a vehicle speed detection circuit, which generates a vehicle speed signal Sc according to the speed of the vehicle. 3a
is the accessory contact of the ignition switch 3, which is turned on when the operation knob 8 is rotated to the accessory position "ACC", the on position "ON", and the start position "START". When this is turned on, an on signal Sd corresponding to the voltage of the battery 32 is output. The receiver 29, keyless entry switch 30, and vehicle speed detection circuit 31 are supplied with power from a battery 32 via a power line VL.

A microcomputer 33 is the core of the control circuit section 25, and is configured to be supplied with power from the battery 32 via the output line VCC of the constant voltage power supply circuit 34. The microcomputer 33 receives the code signals Sa, Sb and the vehicle speed signal.
Sc, the on signal Sd, the light reception signal Se of the phototransistor 24, and a pre-stored program to control the motor 20 as shown in the flowchart of FIG. The microcomputer 33 also controls the lighting of the light emitting diode 23.

Therefore, in the following description of FIG. 7, the microcomputer 33 first determines whether the input code signal Sa or
Determine whether Sb is correct or not and select “YES”
If it is determined that this is the case, the next judgment step procedure is executed. In this judgment step, it is judged whether or not the knob shaft 7 is in the rotation permissible position based on the contents stored in the memory step, which will be described later.If the answer is ``YES'', the process returns to the judgment step, and the judgment is ``NO''.
In other words, if the knob shaft 7 is in the rotation restraint position, the determination step is executed. In this determination step, it is determined whether the ignition switch 3 is in the OFF position (that is, whether the operating knob 8 is in the lock position "ROCK") based on the ON signal Sd, and if "NO" If the answer is "YES", the motor 20 starts rotating in the forward direction at the next motor drive step. When the motor 20 is rotated forward in this manner, the knob shaft 7 starts moving in the direction of arrow A via the pinion gear 18 and rack gear 17. In this case, when the knob shaft 7 starts moving from the rotation restraint position, the light emitting diode 2
3 is blocked by the rack gear 17 and the output of the light reception signal Se from the phototransistor 24 is temporarily stopped, and when the knob shaft 7 is moved to the rotation permissible position, the light reception signal Se is will be re-output. However,
In the determination step following the motor drive step, the microcomputer 33 determines whether or not the knob shaft 7 has been moved to the rotation permissible position based on the output state of the light reception signal Se.
Only when the determination is ``YES'' is the next motor stop step executed to cut off the power to the motor 20.
After this, the process returns to the first judgment step via a memory step in which it is stored that the knob shaft 7 is in the rotation permissible position.

Furthermore, if the microcomputer 33 makes a "NO" determination in the decision step, in other words, if the input of the correct code signal Sa or Sb is stopped, it executes the decision step. In this judgment step, it is judged whether or not the knobshaft 7 is in the rotation restraint position based on the contents stored in the memory stepper which will be described later.If the judgment is ``YES'', the process returns to the judgment step, and if the judgment is ``NO'', the control is returned to the judgment step. In other words, when the knob shaft 7 is in the rotation permissible position, the determination step is executed. In this judgment step, it is judged whether or not the vehicle is stopped based on the vehicle speed signal Sc. If "NO", the process returns to the judgment step, and if "YES", the judgment step is executed. In this judgment step, the ON signal is
Based on Sd, it is determined whether the ignition switch 3 is in the OFF position (that is, whether the operation knob 8 is in the lock position "ROCK"), and "NO" is determined.
In this case, return to the judgment step and
If "YES", the motor 20 starts rotating in the opposite direction at the next motor drive step. When the motor 20 is rotated in the reverse direction in this way, the knob shaft 7
is started to move in the opposite direction of arrow A via pinion gear 18 and rack gear 17. In this case, when the knob shaft 7 starts moving from the rotation permissible position, the light emitted from the light emitting diode 23 is blocked by the rack gear 17, and the phototransistor 2
After the output of the light reception signal Se from 4 is temporarily stopped, the light reception signal Se is outputted again when the knob shaft 7 is moved to the rotation restraint position. Therefore, in the determination step following the motor drive step, the microcomputer 33 determines whether or not the knob shaft 7 has been moved to the rotation restraint position based on the output state of the light reception signal Se, and determines "YES". Only then, the next motor stop step is executed to de-energize the motor 20. After this, the process returns to the judgment step via a memory step that memorizes that the knob shaft 7 is in the rotation restraint position.

In summary, when the code signal Sa or Sb is input through the transmitter 28 or the keyless entry switch 30 while the knob shaft 7 is in the rotation restricted position, the knob shaft 7 is moved to the rotation permitted position and the operation knob is locked. 8 is removed from the recess 5, so that the operation knob 8 can be used to turn on and off the ignition switch 3 and to lock and unlock the steering lock mechanism 4. Furthermore, when the vehicle is stopped and the transmitter 28 or keyless entry switch 3 is in the state where the knob shaft 7 is in the rotation permissible position and the operation knob 8 is in the lock position "ROCK",
When the input of the code signal Sa or Sb through 0 is stopped, the knob shaft 7 is moved to the rotation restraint position and the operating knob 8 enters the recess 5 in a non-rotating state. 8 becomes impossible to turn on and off the ignition switch 3, and the steering lock mechanism 4
is locked. Therefore, according to the present embodiment described above, the unlocking signal (code signal Sa, Sb)
When no input is made, the ignition switch 3 cannot be turned on and off and the steering lock mechanism 4 cannot be unlocked using the operating knob, which reduces safety against breakdowns and theft unlike conventional configurations. There is no risk of this happening. Furthermore, when an unlock signal is input from this state, the knob shaft 7 is moved to the rotation permissible position and the ignition switch 3 etc. can be operated using the operation knob 8. Depending on whether or not the operation knob 8 has come out of the recess 5, it can be easily determined whether or not the operation knob 8 is in a rotatable state.

Next, a second embodiment of the present invention will be described with reference to FIGS. 8 to 12. However, in the following, the same parts as those in the first embodiment are given the same reference numerals, and the explanation thereof will be omitted.

In FIGS. 8 and 9, 35 is a body part, and an end plate part 36 located on the front side thereof has
The characters "LOCK", "ACC", "ON", and "START" are marked, as well as the lock position "ROCK".
An elongated rectangular recess 37 corresponding to the shape of the recess 37 is formed in a penetrating manner. Further, a rotation preventing protrusion 36a of the knob shaft 38 is integrally formed on the back surface of the end plate portion 36 to protrude. The knob shaft 38 is made of a magnetic material such as iron, and is attached to the body portion 3.
5, and can rotate around the axis in the axial direction (arrow A
and in the opposite direction of arrow A). A rectangular operation knob 39, which is slightly smaller than the recess 37, is connected to the tip of the knob shaft 38, and the operation knob 39 is in a state in which it is inserted into the recess 37 (the state shown by the solid line in FIG. 8). Now, the operation knob 3 is rotated by the rotation prevention protrusion 36a.
9, and thus the rotation of the knob shaft 38 is restricted. Also, like this, the knob shaft 38
When the knob shaft 38 is moved in the direction of arrow A from the rotation restrained position and the operation knob 39 comes out of the recess 37 (the state shown by the two-dot chain line in FIG. 8), the rotation of the knob shaft 38 is stopped. Therefore, when the knob shaft 38 is in the rotary permissible position, the operating knob 39 can be moved from the lock position "LOCK" to the accessory position "ACC", to the on position "ON", and to the start position. You will be able to rotate it to "START".

Now, in the following, the above knob shaft 38
The configuration related to this will be explained with reference to FIG. 10 as well. That is, a joint member 40 having an overall disc shape is screwed to the base end of the knob shaft 38, and on the front side of the joint member 40, there are, for example, five engaging protrusions arranged radially. 40a is formed protrudingly. In addition, a suction plate 41 made of magnetic material is provided at the intermediate portion of the knob shaft 38.
are connected and fixed. Reference numeral 42 denotes a rotor provided in the body portion 35 so as to be rotatable around the axis and restricted in its movement in the axial direction. The rotor main portion 44 is connected in a non-rotating manner so as to close the rotor main portion 44. The knob shaft 38 is provided so as to pass through a meshing hole 43 a provided in the bottom wall of the connecting body 43 , and the joint member 40 on the proximal end side thereof is positioned within the connecting body 43 . In this state, the connecting body 43 and the joint member 4
A compression coil spring 45 is interposed between the two.
Therefore, the knob shaft 38 is always given a force to move in the opposite direction of arrow A by the compression coil spring 45. Therefore, the meshing hole 43a provided in the bottom wall of the connecting body 43 is formed in a shape that can mesh with the meshing projection 40a of the knob shaft 38, and the meshing hole 43a and the meshing projection 40a are , are provided so as to be engaged only when the knob shaft 38 is moved to the rotation permissible position. Therefore, the state in which the knob shaft 38 is in the rotation permissible position (the operating knob 39 is in the recess 3
7), the rotor 42 is also rotated in response to the rotation operation of the operation knob 39, and accordingly, the ignition switch 3 is rotated by the tongue piece 44a provided on the rotor main portion 44. is switched to each operating position. Further, the rotor main portion 44 is provided with a cam 44b positioned within the frame portion 12a of the lock bar 12, and the steering lock mechanism 4 is locked and unlocked in accordance with the rotation of the cam 44b.

46 is an electromagnetic solenoid for moving the knob shaft 38 in the direction of arrow A, and this is an electromagnetic solenoid that is connected to the excitation coil 4 provided to surround the knob shaft 38.
6a and a sleeve 46b disposed around the excitation coil 46a. That is, when the electromagnetic solenoid 46 is driven with the knobshaft 38 in the rotation restraint position, the suction plate 41 is attracted to the sleeve 46b and the knobshaft 38 is moved in the direction of arrow A. 47 is knob shaft 3
This is a locking member for preventing pin 4 from being forcibly pulled out in the direction of arrow A from the rotation restraint position.
8 as a fulcrum, and is swingably supported between a locking position shown by a solid line in FIG. 8 and a locking release position shown by a two-dot chain line. Further swinging is restricted by the provided stopper 49. The locking member 47 is always held at the locking position by the tension coil spring 50, and in this state, when the knob shaft 38 is pulled out in the direction of arrow A, the suction plate 41 comes into contact with the locking member 47. This contact prevents the drawer from being pulled out. Furthermore, when the electromagnetic solenoid 46 is driven, the locking member 47 is attracted by the sleeve 46b and swings to the unlocking position.

Now, 51 is an operation switch disposed on the end plate 36, and 52 is a control circuit that constitutes a driving means 53 together with this operation switch 51 and the electromagnetic solenoid 46. Regarding the electrical configuration of the
This will be explained with reference to FIGS. 1 and 12. still,
54 is a connector for the control circuit section 52.

In FIG. 11, reference numeral 55 denotes a microcomputer that forms the core of the control circuit section 52, which receives a code signal Sa from the receiver 29, a code signal Sb from the keyless entry switch 30, and a vehicle speed signal Sc from the vehicle speed detection circuit 31. , accessory contact 3
It has a function of controlling the electromagnetic solenoid 46 as shown in the flowchart of FIG. 12 based on the on signal Sd from a, the on signal Sf from the operation switch 51, and a pre-stored program.

Therefore, in the following description of FIG. 12, first, as shown in FIG. Then, only when the judgment is ``YES'' does the process proceed to the next judgment step. In this judgment step program, it is judged whether the input code signal Sa or Sb is correct, and if it is judged as "NO", it returns to the judgment step, and if it is judged as "YES", it goes to the next judgment step. Execute.
In this judgment step, it is determined whether or not the ignition switch 3 is in the off position based on the on signal Sd (that is, whether the operating knob 8 is in the lock position "ROCK").
If the answer is "NO", the process returns to the judgment step, and if the answer is "YES", the electromagnetic solenoid 46 is driven at the next solenoid energization step. In this way, the electromagnetic solenoid 46
is driven, the knob shaft 38 is moved in the direction of arrow A, and the operation knob 39 is moved into the recess 3 in response to this movement.
7, and the operating knob 39 becomes operable. After this, in the determination step, it is determined whether the ignition switch 3 has been switched to a position other than the OFF position (lock position "ROCK"), and if "YES", the process moves to the solenoid power-off step. The drive of the electromagnetic solenoid 46 is then stopped. In this way, the electromagnetic solenoid 46
When the drive is stopped, the compression coil spring 45 applies a return force in the opposite direction of arrow A to the knob shaft 38, but in this case, the operation knob 39 comes into contact with the front surface of the end plate 36, causing the knob shaft to 38 is stopped from moving in the opposite direction of arrow A. Furthermore, if the judgment is "NO" in the judgment step, it is judged in the next judgment step whether or not a predetermined waiting time has elapsed, and only when the waiting time has elapsed does the process move to the solenoid power-off step. do. Therefore, after the operation knob 39 comes off from the recess 37 and until the waiting time elapses,
When the operating knob 39 is not rotated, the knob shaft 38 is moved by the compression coil spring 4.
It is moved back to the rotation restraint position by the spring force of 5. After executing the solenoid power-off step, the process returns to the judgment step.

The program of the microcomputer 55 includes an interrupt routine XINT as shown in FIG. 12B, which will be explained below. That is, this interrupt routine XINT is executed when the accessory contact 3a is switched from the on state to the off state while the vehicle speed signal Sc is input (the car is running), in other words, the operation knob 39 is set to the accessory position. This is executed when the vehicle is rotated from the lock position "ACC" to the lock position "ROCK", and it is determined as "NO" in judgment step a, which determines whether the vehicle is stopped based on the vehicle speed signal Sc. During this period, the solenoid energization step b is executed to maintain the electromagnetic solenoid 46 in a driven state, and when the determination step a is ``YES'', the interrupt is canceled via the solenoid energization step c.
Therefore, even if the operating knob 38 is erroneously turned to the lock position "ROCK" while the vehicle is running, the knob shaft 38 will not return in the direction opposite to the arrow A.

According to the second embodiment described above, the code signal Sa or Sb is input through the transmitter 28 or the keyless entry switch 30 while the knob shaft 38 is in the rotation restraint position, and the operation switch 51 is turned on. When the knob shaft 3
8 is moved to the rotation permissible position and the operation knob 39 is removed from the recess 37, so that the operation knob 39 can be used to turn on and off the ignition switch 3 and to lock and unlock the steering lock mechanism 4. It is. Further, when the vehicle is stopped with the knob shaft 38 in the rotation permissible position and the operation knob 39 is rotated to the lock position "ROCK" in this state, the knob shaft 38 is moved to the rotation restriction position and the operation is disabled. Since the knob 39 enters the recess 37 in a non-rotating state, it becomes impossible to turn on and off the ignition switch 3 using the operating knob 39, and the steering lock mechanism 4 is locked. Therefore, the present embodiment described above also provides the same effects as the first embodiment.

The present invention is not limited to the embodiments described above and shown in the drawings, and may be modified in various ways without departing from the spirit thereof, for example, the unlocking signal may be obtained by other means. It can be implemented by

[Effects of the invention] According to the present invention, as is clear from the above explanation, in order to achieve keyless operation, when an unlocking signal is received, the rotational restraint state is released and rotational operation is possible. Although the device is configured with a knob, there is no possibility that the operating knob will be rotated while the rotation is restricted, which has the practical effect of improving safety against malfunctions and theft. .

[Brief explanation of the drawing]

1 to 7 show a first embodiment of the present invention, in which FIG. 1 is a vertical side view, FIG. 2 is a front view, FIG. 3 is an exploded perspective view of main parts, and FIG. 4 is a front view showing the positional relationship of the knob shaft, motor, etc., FIG. 5 is a plan view of parts related to the steering lock mechanism, FIG. 6 is a diagram showing the electrical configuration, and FIG. 7 is a diagram showing the functions of the control circuit section. It is a flowchart.
Moreover, FIGS. 8 to 12 show the second embodiment of the present invention, and FIGS. 8 to 10 show the first embodiment, respectively.
3 to 3, and FIGS. 11 and 12 are views corresponding to FIGS. 6 and 7, respectively. In the figure, 1 and 35 are body parts, 2 and 36 are end plate parts, 3 is an ignition switch, 4 is a steering lock mechanism, 5 and 37 are recessed parts, 7 and 38 are knob shafts, 8 and 39 are operation knobs, 12 is a lock bar, 20 is a motor, 25, 52 is a control circuit section,
26 and 53 are driving means, 28 is a transmitter, 29 is a receiver, 30 is a keyless entry switch, 31
33 and 55 are microcomputers, 46 is an electromagnetic solenoid, and 51 is an operation switch.

Claims (1)

[Claims for Utility Model Registration] 1. A knob shaft having an operating knob at its tip and capable of rotating around an axis and movable back and forth in the axial direction, and an end plate through which the knob shaft is passed. The body part has a recess in the end plate into which the operating knob enters in a non-rotating state, and the knob shaft is always held in a rotation restrained position in which the operating knob enters into the recess and an unlock signal is input. and a driving means for moving the knob shaft to a rotary permissible position where the operation knob is removed from the recess when the knob shaft is rotated, and in response to the rotation of the knob shaft, the ignition switch is turned on and off and the steering lock is turned on. An ignition switch device for an automobile, characterized in that the ignition switch device is configured to perform a lock release operation of the mechanism. 2. The automobile ignition system as set forth in claim 1 of the utility model registration claim, wherein the unlocking signal is in the form of an airborne signal such as infrared rays or radio waves output from a portable transmitter. Tension switch device.