JPH0816418B2 - Vehicle ignition key device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ignition key device for a vehicle in which a key can be removed only when an automatic transmission of the vehicle is in a non-driving range position such as parking.

2. Description of the Related Art As a conventional vehicle ignition key, the one shown in FIGS. 10 to 12 has been put into practical use (for a similar structure, refer to the Automotive Engineering Handbook, Vol. 6, Car Body, pages 1-15). That is, a key cylinder 2 is rotatably inserted into a cylindrical cover member 1 attached to an instrument panel or the like of a vehicle. The key cylinder 2 is composed of an inner cylinder 3 and an outer cylinder 4, and the inner cylinder 3 is provided with an insertion opening 6 for inserting a key 5. The key 5 is provided with a wavy toothed portion 7, and the outer cylinder 4 is provided with a plurality of protruding plates 8 ... Further, a push button 9 is attached to the cover member 1 and the peripheral portion so that the key 5 can be pulled out from the insertion opening 6 along with the movement in the axial direction (arrow a), and the push button 9 is linked to the push button 9. A claw 11 is hung vertically on the tip of the rod 10 thus formed. On the other hand, a position switch 12 is attached to the end portion of the inner cylinder 3, and along the circumferential direction, as shown in FIG.
And a second upright wall 14 are formed, and a first groove 15 is formed between the first and second upright walls 13 and 14. A third upright wall 16 is provided on an extension of the first groove 15,
Between the third standing wall 16 and the fourth standing wall 17 facing the second standing wall 16, a second
A groove 18 is formed. The second groove 18 and the first groove
15 is continuous via a slanted groove 19, the fourth standing wall 17 and the second standing wall 14 are continuous via a stopper wall 20, and the fourth standing wall 17 has a second section. A cutout groove 21 continuous with the recessed groove 18 is formed. In Fig. 12, each wall
13, 14, 16, 17, and 20 are shaded. In such a structure, when the key 5 is inserted into the insertion hole 6, the projecting plates 8 ... Withdraw and the key cylinder 2 is allowed to rotate. OF
It becomes possible to rotate it to the position of "F""2Acc""3ON""4START". Then, when the key cylinder 2 is rotated together with the key 5, as shown in FIG.
In the position from "Acc" to "4 START", the claw 11 is located in the first groove 15, and the axial movement of the push button 9 is blocked by the second standing wall 14. In the "1 OFF" position, the claw 11 is located in the slanted groove 20, and the pusher button 9 is prevented from moving in the axial direction by the stopper wall 20. When the key cylinder 2 is to be rotated together with the key 5 to the “0 LOCK” position, the claw 11 moving in the first groove 15 comes into contact with the tip of the third standing wall 16, so that the key 5
Is prevented from rotating. Here, when the push button 9 is pressed, the claw 11 moves to the second groove 18 side and can be rotated to the “0 LOCK” position. Then, at this position, the claw 11 matches the notch groove 21, so that the key 5 can be pulled out from the insertion opening 6.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in such a conventional device, the push button 9 is pressed and the key 5 is set to "0 LOCK" without any relation to other devices mounted on the vehicle. When rotated to the position, the key 5 can be removed.
Therefore, for example, in a vehicle equipped with an automatic transmission, even when the shift lever is in D (drive range) or R (reverse range), the key is "0 LOCK" when the vehicle is stopped. The key 5 can be removed by rotating it to the position. However, for vehicles equipped with automatic transmissions, the shift lever is set to P (parking) or N when starting.
If it is not in the (neutral) position, the engine cannot be started even if the key is rotated. Therefore, if the key 5 is removed while the shift lever is in the D or R position when stopped, the engine must be started after shifting to either the shift lever or P or N position when starting. It had a disadvantage that the start was delayed.

Means for Solving the Problems In order to solve the above problems, according to the present invention, a rotatable key cylinder and a key cylinder that is inserted into the key cylinder and cannot be extracted at a rotational position other than a predetermined lock position. A key and a locking operation member arranged in the vicinity of the key insertion opening of the key cylinder are provided, and the rotation operation of the key to the lock position can be performed on condition that the operation member is pressed. In the vehicle ignition key device, a lock mechanism for preventing the pressing operation of the operation member is provided, and a release control means for releasing the lock mechanism when the shift lever of the automatic transmission is in the non-traveling range position is provided. Is characterized by.

Operation In the above configuration, the shift lever of the automatic transmission is set to P.
If it is in a non-running range position such as (parking) or N (neutral), the key inserted in the key cylinder is
By pressing the operating member and rotating it to the lock position, it is possible to remove the operating member. However, when the shift lever of the automatic transmission is in the travel range position such as D (drive range) or R (reverse range), the lock mechanism prevents the operation member from being pressed, making it impossible to remove the key. Become.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. That is, as shown in FIGS. 1 and 2, a key cylinder 2 is rotatably inserted into a cylindrical cover member 1 attached to an instrument panel or the like of a vehicle. The key cylinder 2 is composed of an inner cylinder 3 and an outer cylinder 4 as already installed with FIG. 11, and the inner cylinder 3 is provided with an insertion opening 6 for inserting a key 5. The key 5 is provided with a corrugated tooth profile 7, and the outer cylinder 4 is provided with a plurality of projecting plates 8 that are to be immersed when they match the corrugated tooth profile 7. At the peripheral portion of the cover member 1, the key 5 is located at a position where the key 5 is pulled out along with the movement in the axial direction.
A push button 9 is attached as an operating member that allows the push button 9 to be rotated to the “LOCK” position. A rod 10 is connected to the push button 9, and a downward claw 11 is formed at the tip of the rod 10. There is. Meanwhile, the inner cylinder 3
A position switch 12 is attached to the end portion of the first concave groove 22 which is open on one side and the first concave groove 22 as shown in FIG. A first upright wall 23 is formed along the groove 22. A second standing wall 24, which is lower than the first standing wall 23, is formed on an extension line of the first recessed groove 22, and a third standing wall 25 facing the second standing wall 24.
A second groove 26 is formed between The first groove
22 continues to the second groove 26 through the oblique groove 27,
The upright wall 23 and the third upright wall 25 are continuous through a slanted wall 28,
The third standing wall 25 is formed with a first cutout groove 29 and a second cutout groove 30 which are continuous with the second recessed groove 26.

On the other hand, a locking mechanism 31 is provided above the position switch 12, and the locking mechanism is provided with an electromagnetic actuator 33 having a plunger 32 that retracts when energized. As shown in FIG. 2, the electromagnetic actuator 33 is fixed to the inner peripheral wall of the case 34 for accommodating the cover member 1 and the like, and the operator 35 is fixed to the tip of the plunger 32. A first recess 36 and a second recess 36 are provided side by side on the upper surface of the base of the operator 35, and a tapered step 38 is provided in the vicinity of the first recess 36. The case 34 has first and second recesses 36 and 3 respectively.
A check ball 40, which is selectively fitted to 7 and urged by a return spring 39, is held, and a guide piece loosely fitted in the first groove 22 or the like is provided at the tip of the operating element 35. 41
Is provided. The guide piece 41 has a length dimension that abuts against the first upright wall 23 but does not contact the second upright wall 24 that is lower than the first upright wall 23, while the pawl 11 includes all the walls.
It has a length dimension capable of contacting 23, 24, 25, 28.

Further, a block 44 having a dovetail groove 43 is slidably supported in the circumferential direction of the key cylinder 2 along the first groove 22 on the protrusion 42 formed on the inner peripheral portion of the case 34. . A guide surface 45 is formed on the block 44 so as to be in sliding contact with the step portion 38, and is urged by a pressing spring 46 in a direction in which the guide surface 45 is pressed against the step portion 38.

FIG. 3 shows a control circuit 47 which is a release control means for releasing and driving the lock mechanism 31, and the key 5 from the position switch 12 is "1 OFF" as an input signal.
OFF position signal which becomes Hi at the position of, the P position signal which becomes Hi at the P position of the shift lever from the automatic transmission transmission switch which is a signal for detecting the forced stop state of the vehicle, and the key 5 inside the insertion opening 6 Key switch 48 and power supply V _B that become Hi when inserted into. In the figure, 49 and 50 are one-shot multivibrators, both of which are used in the same way, and when the P position signal is Hi, the OFF position signal is Hi.
Then, when an update signal is input, C between T ₁ and T _2
The Hi signal is output to Q _A only for the time set in _A and R _A. Also one of the one-to bract multivibrator 49, an OFF signal P position signal C _DA (Prerequisites) input to A _A, the other one to bract multivibrator 50, a P position signal C
P position signal is input to A _B in _DB (precondition). or
The outputs of Q _A and Q _B are integrated by an OR circuit 51 and configured to excite the electromagnetic actuator 33 for a certain period of time via a transistor 54. Further, the relay 52 is driven by the signal of the key switch 48, and the electromagnetic wave of the control circuit 47 is
A contact 52a for supplying power to the AVR 53 is provided.

Next, the operation of the present embodiment having the following configuration will be described below.
It will be described with reference to the drawings.

In FIGS. 4 (A) to (H), the first, second and third standing walls 23, 24, 25 and the slanted standing wall 28 are shown by hatching for the sake of clarity. And the first and second groove 2
2, 26, the slanting concave groove 27 and the first and second cutout grooves 29, 30 are shown in white, and the claw 11 and the guide piece 41 are shown with a plurality of dots. That is, as shown in FIGS. 4 (A) and 4 (I), when the key 5 is inserted into the insertion opening 6, the key cylinder 2 is in the position of "0 LOCK", and the claw 11 is in the first cutout groove 29. Further, the guide pieces 41 are located at the positions corresponding to the second cutout grooves 30, respectively. Then, when the key 5 is inserted into the insertion opening 6,
The key switch 48 senses this and turns on, the relay 42 is excited, the AVR 53 is driven, and the control circuit 47 is activated.
On the other hand, when the key 5 inserted in the insertion slot 6 is rotated to "1 OFF", the key cylinder 2 also rotates, and the first and second cutout grooves 29, 30 are provided with the claws 11 as shown in FIG. 4 (B). And guide piece 4
When the key 5 is further rotated to the position of "2 Acc" while being separated from 1, the first standing wall 23 moves to a position where it comes into contact with the side surface of the claw 11 (Figs. 4 (C) and (J)). When the key 5 is further rotated to the "3 ON" and "4 START" positions, as shown in FIGS. 4 (D), (E) and (K), the first upright wall 23 causes the claw 11 and the guide piece. It moves to a position where it comes into contact with the side surface of 41. As a result, the rod 10 provided with the pawl 11 moves backward in the axial direction, and the operating element 35 provided with the guide piece 41 moves forward in the axial direction. Then, the stepped portion 38 formed on the operator 35 slides on the tapered guide surface 45 formed on the block 44, and the block 44 resists the pressing spring 46 and is located at a position facing the end surface of the rod 10. Displace.

When the key 5 is rotated from the "3 ON" to the "1 OFF" position to stop the vehicle after traveling, the guide piece 41 is lower than the first standing wall 23 described above, as shown in FIG. 4 (F). The second erection wall 24 is reached without coming into contact with the second erection wall 24. However, the longer claw 11 than the guide piece 41 contacts the end surface of the second standing wall 24, and it is impossible to rotate the key 5 and the key cylinder 2 in the "0 LOCK" direction any more. Further, since the block 44 has reached the position facing the end face of the rod 10 due to the forward movement of the operating element 35 as described above, even if the push button 9 is pressed, the rod 10 comes into contact with the block 44 and the push button 9 moves. The pressing operation becomes impossible. For this reason, the occupant is prevented from rotating the key 5 and the push button 9 cannot be pressed, so that when the key 5 is pulled out when the vehicle is stopped, the shift lever of the automatic transmission is pushed. It is urged that the shift operation should be performed in the P position. Then, when the occupant shifts the shift lever to the P position based on this alert, as shown in the latter half of the time chart of FIG.
The FF position signal is Hi, and the P position signal becomes Hi due to the shift operation of the shift lever to the P position, whereby the OR circuit 51 is driven by Q _B which becomes Hi for a certain period of time.
The electromagnetic actuator 33 is excited. Contrary to this, first set the shift lever to the P position and then press the key "1 OF
When it is rotated to the "F" position, as shown in the first half of the time chart of FIG. 5, the P position signal becomes Hi with the shift operation of the shift lever to the P position, and the key 5 The OFF position signal becomes Hi due to the shift operation to the "1 OFF" position, and the OR circuit 51 is driven by Q _A which keeps Hi for a certain period of time, and the electromagnetic actuator 33 is also excited.

Then, the plunger 32 withdraws as shown by arrows B in FIGS. 4 (G) and (L), and the manipulator 35 retracts in the axial direction together with the plunger 32. According to this, block 44
Is urged by the pressing spring 46 as shown by the arrow C in FIG. 4 (G) while sliding the guide surface 45 to the step portion 38, and is displaced to a position where it does not interfere with the rod 10. Therefore, when push button 9 is pressed, rod 10
It can be moved without interfering with (Fig. 4 (H), (M) arrow E), and the key 5 can be continuously rotated to the "0 LOCK" position shown in Fig. 4 (A), (I). Is possible. As a result, the key 5 can be pulled out from the insertion opening 6 at the “0 LOCK” position.

Therefore, when removing the key 5 in this way, push the shift lever of the automatic transmission in advance.
Shifting to the position is essential. Therefore, the shift lever is inevitably preliminarily operated to shift to the P position when the vehicle starts moving. Therefore, the engine can be started without the need for a shift operation prior to starting, and the starting operation can be performed quickly.

Since the control circuit 47 uses a CMOS IC,
Although R53 is used, it is possible to eliminate AVR53 by using TTL type IC. Further, the OFF signal input to the control circuit 47 takes the logical sum of the signals indicating the Acc "2" position and the ON "3" position without providing a special switch 48, and the inverse signal (that is, Acc "2"). It is also possible to use the position and the signal of the ON “3” position are both Low).

FIG. 6 shows a second embodiment of the present invention, in which the pushbutton 9 is provided on the operator 35, and the image 56, which protrudes above the surface of an instrument panel (not shown) or the like, has an arm 56. Is projected through. According to this embodiment, by pressing the emergency button 55, the operator 35 is forcibly moved to the operation shown in FIGS. 4 (G) and (L).
As shown in FIG. 4, the push button 9 can be pushed by sliding the block 44 by sliding it backward. Therefore, in this embodiment, when any abnormality occurs, the emergency button 55 can be pressed to forcefully remove the key 5.

FIG. 7 shows a third embodiment of the present invention, in which the block 44 is provided with a tapered notch 57 at a portion facing the end face of the rod 10 provided with the claw 11. In this embodiment, the push button 9 is pressed with normal operating force.
Even if is pressed, the rod 10 comes into contact with the block 44 so that the push button 9 cannot be operated, which calls for the shift lever to be shifted to the P position.
Then, after the shift lever is shifted to the P position and the push button 9 is pressed with a force greater than the normal operating force, the end face of the rod 10 is pressed against the tapered notch 57, and the block 44 causes the operator 35 to retract. While displacing. Therefore, the push button 9 can be pressed to a position where the key 5 can be removed. That is, also in this embodiment, the key 5 can be forcibly withdrawn when an abnormality occurs, as in the second embodiment described above.

8 and 9 show a fourth embodiment of the present invention, in which a housing 59 having a side wall 58 is formed inside the case 34, and the electromagnetic actuator 33 is loosely inserted in the housing 59. Has been done. Between the electromagnetic actuator 33 and the side wall 58, a support spring 60 having both ends fixed to the both members is inserted, and the support spring 60 causes the plunger 32 to operate to slide the block 44, The strength of the block 44 is set so that it does not stretch due to the reaction when the block 44 gets over the check ball 40.

In the present embodiment having the above-described structure, when the key 5 is rotated from the "1 OFF" position shown in FIG. 4B to the "3 ON" position shown in FIG. If it is left in the actuator 33, it becomes difficult to rotate the key 5. Therefore, if the occupant continues to rotate the key cylinder 2 together with the key 5 with a stronger operating force than the normal operating force, as shown in FIG. Slides on the oblique standing wall 28 and moves forward in the axial direction as the oblique standing wall 28 moves. During this time, the electromagnetic actuator 33 axially advances together with the operating element 35 provided with the guide piece 41 and the plunger 32 to which the operating element 35 is fixed, and the support spring 58 appropriately extends to advance the electromagnetic actuator 33 and the like. Tolerate. When the key 5 is completely rotated to the "3 ON" position, the claw 11 and the guide piece 41 are moved as shown in FIG. 4 (D).
Both reach the first groove 22, and the engine can be started by rotating the key 5 to the "4 START" position as shown in FIG.

As described above, according to the present invention, the key cannot be removed unless the automatic transmission is in the non-traveling range such as P (parking). Therefore, the vehicle is stopped with the key removed. Then, the automatic transmission is always switched to the non-driving range. Therefore, the next time the engine is started and started, the automatic transmission is always in the non-running range, and the engine is limited so that the engine can be started only when the shift lever is in the non-running range. Even in this case, the engine can be started and started quickly.

[Brief description of drawings]

1 is a perspective view showing a first embodiment of the present invention, FIG. 2 is a sectional view corresponding to line II-II in FIG. 1, FIG. 3 is a circuit diagram showing a control circuit of the same embodiment, and FIG. FIGS. 1 (A) to (H) show an operational state of the same embodiment as shown in FIG.
(M) is a sectional explanatory view corresponding to line II-II in FIG. 1 showing the same operating state, FIG. 5 is a time chart showing the operation of the control circuit, and FIG. 6 is a second embodiment of the present invention. Perspective view, 7th
FIG. 1 is a development view showing an arrow in FIG. 1a showing a third embodiment of the present invention, FIG.
Figure IX-IX line sectional view, Figure 10 is a perspective view showing a conventional device,
Fig. 11 is a perspective view showing the key cylinder and key of the same device.
FIG. 12 is a development view shown by an arrow in FIG. 2 …… Key cylinder, 5 …… Key, 31 …… Lock mechanism,
47 ... Control circuit (release control means).

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-58-164434 (JP, A) Actually opened 55-146361 (JP, U) Actually opened 63-189854 (JP, U)

Claims (1)

[Claims] Claim: What is claimed is: 1. A rotatable key cylinder, a key that is inserted into the key cylinder and cannot be pulled out at a rotational position other than a predetermined lock position, and a lock that is arranged close to a key insertion opening of the key cylinder. An operation member for use in a vehicle ignition key device, wherein a rotation operation of the key to the lock position is possible on condition that the pressing operation of the operation member is performed, a lock mechanism for preventing the pressing operation of the operation member. And a release control means for releasing the lock mechanism when the shift lever of the automatic transmission is in the non-traveling range position.