JPS60253676A - Key apparatus for vehicle - 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 "Field of Industrial Application" The present invention relates to a key device for automobiles such as passenger cars and trucks, motorcycles, and agricultural machines such as tillers and reapers.

``Prior Art'' Automobiles are equipped with steering lock devices to prevent theft, and many of these lock devices are configured to lock when the key is pulled out.

However, if the key falls out due to vibration while driving, if the key is carelessly pulled out while driving, or if the key is pulled out by another person, the lock may be activated and the car may become inoperable, resulting in a dangerous situation. is assumed.

Therefore, when the key is turned from the ON position (operating position) back to the LOCK position (key insertion position), the LO
Key rotation is once blocked before the CK position, and the key does not rotate to the LOCK position unless another operation is performed to release the block.

That is, a two-motion mechanism is provided in which returning the key to the LOCK position requires two operations: a rotation operation of the key and an operation to release the block, thereby dealing with the above-mentioned dangerous situation.

The 2-motion mechanism has various configurations depending on the car model or manufacturer. For example, the ACC position (accessory
LOCK the key while pressing the additional blocking release button.
Either the key is configured to allow rotation to the OCR position, or it is configured to prevent the key from returning to the ACC position, and the key cylinder is pushed in at the ACC position to release the block while the key is rotated to the OCR position. There are configurations that allow

``Problems to be Solved by the Invention'' In the type in which key blocking is released using a release button, there is an inconvenience in that both hands must be used to rotate the key and press the release button. With the type that releases the key block by pushing in the cylinder, when the key is rotated from the LOCK position to the ON position, that is, when starting the engine, the cylinder is forcibly retracted, so there is a tactile sensation that the key gets caught in the key operation. This causes discomfort and makes the operation filling undesirable.

Particularly, nowadays, the manipulation filling has become a major factor that influences the value of the product, so a solution to this point has become an important issue.

"Means for Solving the Problems" The present invention aims to solve the above-mentioned problems, and by operating an inserted key, the cylinder lock can be unlocked and the steering lock mechanism can be unlocked. A vehicle key device that operates a starter switch includes a cylinder lock in which the cylinder can move forward and backward in the direction of the rotation axis, a rotating body connected to the cylinder so that it rotates integrally, and A unidirectional locking part is provided on the rotating body so that the unidirectional rotation of the rotating body is prevented at a predetermined rotation angle, and the rotation area of the unidirectional locking part can be freely entered. It is characterized in that it includes a stopper that applies an advancing force, and an interlocking member connected to the cylinder that causes the stopper to retreat from the rotation area of the unidirectional locking part when the cylinder is advanced.

As a result, the advance rotation of the key from the insertion position to the start position is performed with one operation, and the return rotation of the key is accompanied by the advance operation of the cylinder that releases the locking of the stopper from the one-way locking portion. This is done by two operations.

According to the present invention described above, when the key is rotated to the start position, the cylinder does not sink in and the engine starting operation is performed well, and when the key is returned to the inserted position, the return rotation process By pressing the cylinder and rotating it slightly, you can return the key to the inserted position and rotate it.

On the other hand, it is effective to provide the aforementioned rotating body in series with the cam body of the steering lock mechanism and to provide mechanical play between the rotating body and the cylinder.

With this configuration, by simply pushing the cylinder once during the return rotation process of the key, the two-motion mechanism is released and the key can be rotated to the inserted position.

"Example" Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a partially cutaway side view of a key device according to the present invention, FIG. 2 is a plan view of the key device, and FIG. 3 is a partially cutaway enlarged side view of the key device showing the main parts. FIG. 4 is an enlarged bottom view of the key device showing the main parts.

As is well known, the illustrated key device is fixed by attaching a bracket 1a provided on a part of the device body 1 to a steering post or the like.

The cylinder 2 and outer 3 installed inside the device body 1 constitute a well-known cylinder lock, but the cylinder 2 above is in the ACC position in the direction of the rotation axis (horizontal direction in the drawing).
It's immersive without moving.

That is, the head portion of the cylinder 2 is provided with a convex portion 2a along the circumference, and when a pressing force is applied to the cylinder 2, the convex portion 2a fits into the concave portion 3a on the inside of the outer, and the cylinder 2 is retracted. However, the concave portion 3a is wider than the convex portion 2a so that the cylinder 2 can rotate somewhat when it is pushed in.

It should be noted that the cylinder 2 may be freely pushed between the LOCK position and the ACC position or between the LOCK position and the ON position.

A ring plate 5 attached with an E-ring 4 is provided at the tip of the cylinder 2, and the ring plate 5 has a long spring plate 5a with a rope extending outward from the outer 3 from its surrounding area.
is integrally formed.

The front portion of the spring plate 5a is obliquely formed, and this front portion serves as an interlocking member for pushing up a stopper, which will be described later.

The ring plate 5 described above is loosely fitted into the base of the connecting protrusion 2b protruding from the front end surface of the cylinder 2, and both sides of the spring plate 5a are attached to the parallel walls of the stopper provided on the outer 3. 3b, the ring plate 5 is not subjected to the rotational force of the cylinder 2 and is only driven by the lateral movement of the cylinder 2.

The ring plate 5 and its spring plate 5a may be made of a non-elastic material such as a rigid body, and the portion corresponding to the spring plate 5a may be formed as a round bar or a square bar.

The connecting protrusion 2b protruding from the cylinder 2 is approximately rectangular with an inner hole, and is inserted into the approximately rectangular connecting hole 6a provided in the cam body 6 to connect the cylinder 2 to the cam body 6.

A spring 7 commonly provided in the inner hole of the connecting projection 2b and the connecting hole 6a is a pressure expanding spring for constantly moving the cylinder 2 backward (towards the right in the drawing).

The cam body 6 is rotatably installed inside the device main body 1, and both sides thereof are formed with cams. Further, a joint 6b having a semicircular cross section is integrally formed on the cam body 6, and the starter switch 8 is interlocked with a rectangular protrusion 6C provided at the tip of the joint 6b.

As shown in FIG. 5, one side (the right side in the drawing) of the cam body 6 has a cam shape consisting of a semicircular recess 6d and a locking protrusion 6e provided approximately in the center of the recess area. As can be seen from the drawing, the locking convex portion 6e has one surface extending in the diametrical direction and the other surface extending and oblique compared to the diametrical direction.

As will be described in detail below, the other surface becomes the leading surface when the key is rotated forward, and the negative surface becomes the leading surface when the key is rotated back.

The stopper 9, whose tip extends into the recess 6d of the cam, is rotatably supported by a support shaft 10 on the parallel wall 3b, and a clockwise turning force is exerted by the expanding pressure of a spring 11 suspended on the parallel wall 3b. is a given.

This stopper 9 is formed with a diagonal cut portion, and the front portion of the above-mentioned spring plate 5a comes into contact with this diagonal portion.

Note that the tip of the stopper 9 may be formed into a convex curve.

The other side (the left side in the drawing) of the cam body 6 has the cam shape shown in FIG. 6, and such a cam 6f is known as a locking cam that drives the slider 12 for steering lock.

That is, the slider 12 is provided with a stepped portion 12b having a sloped portion 12a, and as the cam body 6 rotates, the sloped portion 12a and subsequently the stepped portion 12b move toward the lock cam 6.
It is pushed back by the pushing part 6g of f and the lock is released.

When the slider 12 is pushed back as described above, it is pushed back against the pressure expansion action of the spring 13, and at the pushed back position, the tip of the locking rod 14 enters the locking recess 12c and locks the slider 12. to remain unlocked.

When the key is returned to the LOCK position and pulled out from the cylinder lock, the tip of the locking rod 14 escapes from the locking recess 12C, and the slider 12 is thereby moved to the lock position by the expanding action of the spring 13.

Next, the operation of the key device will be explained with reference to the operation process diagrams shown in FIGS. 7, 8, and 9.

First, when starting the engine, as is well known, insert the key into the cylinder lock 9 and move the key from the LOCK position to the ACClON and STA'RT positions and turn it, but when the key is in the LOCK position When the cam body 6 is rotated from the ACC position to the ACC position, the cam body 6 rotates in the order shown in FIGS.

That is, as the cam body 60 rotates, the locking protrusion 6e abuts against the stopper 9, but since the leading surface of the locking protrusion 6e is inclined, the tip of the stopper 9 pushes up against the expanding force of the spring 11. When the tip of the locking convex portion 6e passes, the stopper 9 returns and the tip advances into the concave portion 6d again.

The key is subsequently rotated from the ACC position to the 5TART position, but during this operation process, the tip of the stone bar 9 is in the recess 6d.

In this way, when starting the engine, it is only necessary to advance and turn the key.

To stop the engine, turn the key from the ON position to
The key is rotated back toward the OCK position, but when the key is rotated to the ACC position, the locking convex portion 6e of the cam body 6 abuts against the tip of the stopper 9, so that the return rotation of the key is stopped. FIG. 8(a) shows this stage of operation.

When the cylinder 2 is pushed in at this stage of operation, the stopper 9 is pushed up by the spring plate 5a driven by the cylinder 2, and the tip of the stopper retreats from the turning area of the locking projection 6e.

FIG. 8(b) and FIG. 9 show this operation process.

Therefore, if the key is rotated slightly back while the cylinder 2 is pushed in, the locking protrusion 6e will pass the stopper tip, and then the pushing force of the cylinder 2 will be released and the key will be rotated to the LOCK position. . (Figure 8 (
c), (d) wA) In this way, when stopping the engine, there are two motions: a return rotation operation of the key and a push operation of the cylinder 2.

Incidentally, the starter switch 8 is operated in accordance with the rotation of the key, and the steering lock is released, but since this is well known, a description thereof will be omitted.

Next, regarding other embodiments of the present invention, FIGS.
This will be explained according to the diagram.

In this embodiment, the 2-motion mechanism is released by simply pushing the cylinder 2 once, and the key returns to the LOCK position and rotates.

That is, in the above-mentioned embodiment, the key must be returned to some extent and rotated while the cylinder 2 is pushed in, but this embodiment solves this problem.

In this embodiment, a slight mechanical play is provided between the connecting protrusion 2b provided on the cylinder 2 and the connecting hole 6a of the cam body 6, and the slider 12 is locked by the locking rod 14 in the ACC position. This embodiment is characterized in that the moderation mechanism that moderates the rotation of the key is provided with mechanical play at the A C'C position, and the other configurations are the same as those of the above embodiment. In addition, instead of providing mechanical play in the moderation mechanism, the cam body 6 and the starter switch 8
It is also possible to give some play to the connecting part.

In this embodiment, when the key is returned to the ACC position and rotated, the locking protrusion 6e of the cam body 6 abuts against the stopper 9 as in the above embodiment, resulting in the state shown in FIG. When pushed in, the tip of the stopper retreats from the turning area of the locking convex portion 6e.

At this point, the cam body 6 is in a state where it can rotate slightly independently with respect to the cylinder 2 due to mechanical play with the connecting protrusion 2b.

On the other hand, since the pushing part 6g of the cam body 6 is pushed by its slope part 12a due to the return force of the slider 12, the cam body 6 has the above-mentioned mechanical play. FIG. 11 shows this operation process. As a result, the locking convex portion 6e of the cam body 6 moves directly below the tip of the stopper almost simultaneously with the pushing of the cylinder 2.

As a result, when the pressed cylinder 2 is immediately retreated, the tip of the stopper 9 hits the upper end of the locking convex portion 6e, so that the key can then be rotated back to the LOCK position.

FIG. 12 shows a case where the mechanical play between the cam body 6 and the connecting protrusion 2b is increased. With this configuration, the locking protrusion 6e of the cam body 6 passes the stopper tip almost at the same time as the cylinder 2 is pushed in. I come to do it.

As can be seen from the above, according to this embodiment, the key can be locked by simply pressing the cylinder 2 temporarily in the ACC position.
It can be rotated to the K position.

"Effects of the Invention" As described above, according to the key device according to the present invention, when the key is advanced and rotated toward the 5TART position, the key operation is smooth without the retraction movement of the cylinder, etc. The starting operation is extremely well-functioning, and
When the key is returned and rotated, the cylinder is pushed in, so that the effect of a two-motion mechanism is fully achieved, and furthermore, the key operation can be performed with one hand.

In the above embodiment, the cam body 6 is provided with the locking protrusion 6e and the locking cam 6f, but a separate rotating body is provided in series with the locking cam, and this rotating body is provided with the locking protrusion 6e. 6e may be formed, or the formation position of the locking protrusion 6e may be moved and the two-motion mechanism may be configured to operate at a key rotation position other than the ACC position.

Furthermore, it is also possible to rotate the cylinder 2 back from the ACC position to the LOCK position while being pushed in.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show embodiments of the present invention, in which FIG. 1 is a partially cutaway side view of a key device according to the present invention, FIG. 2 is a plan view of the key device, and FIG. 4 is an enlarged bottom view of the key device showing the main parts, FIG. 5 is an enlarged right side view of the cam body, and FIG. 6 is an enlarged side view of the key device showing the main parts. A partially cutaway enlarged left side view of the cam body, Figures 7 and 8 are diagrams showing the operating state of the cam body, and Figure 9 is a third diagram showing the operating state.
FIG. 10 is an enlarged right side view of a cam body showing another embodiment of the present invention, and FIGS. 11 and 12 are views showing the operating state of the embodiment. be. ■...Device body, 2...Cylinder, 5...Ring plate, 5a...Spring plate, 6...Cam body, 6d...
Recessed portions 1, 6e...Latching convex portion, 6f...Lock cam, 8...Starter inch, 9...Stopper, 1
2...Slider. Patent applicant: U-Shin Co., Ltd. Figure 3, Figure 4', Figure 5, f'sn, Figure 6, Figure 9, Figure 10, Figure 11, Figure 12aii! IZCl 6g11'-'

Claims (1)

[Scope of Claims] (11) In a vehicle key device in which a cylinder lock is unlocked, a steering lock mechanism is unlocked, and a starter switch is operated by operating an inserted key, a cylinder is moved back and forth in the direction of a rotating shaft. A cylinder lock that is freely movable, a rotating body that is connected to the cylinder so that it rotates integrally, and a rotating body that is configured such that the rotating body is prevented from rotating in one direction at a predetermined rotation angle. A unidirectional locking part provided on the moving body, a stopper that can freely enter the turning area of the unidirectional locking part and constantly applies an entry force, and a unidirectional locking part that allows the stopper to move in the unidirectional direction under the advancing operation of the cylinder. It is equipped with an interlocking member connected to the cylinder that is moved away from the rotation area of the locking part, and the forward rotation of the key from the insertion position to the start position is performed with one operation, and the return rotation of the key is performed in the above-mentioned unidirectional manner. A vehicle key device that is operated by two operations, including an advancing operation of the cylinder to release the locking of the stopper from the locking portion. (2) The interlocking member is made of a leaf spring loosely fitted in the cylinder. A vehicle key device according to claim (1). (3) The key device is equipped with a cylinder lock and a starter inch, and is unlocked by retracting a slider that has a locking force using a cam body that rotates when the key is operated. In a vehicle key device equipped with a steering lock mechanism, the cylinder lock has a cylinder that can move forward and backward in the direction of the rotation axis, and the cylinder is connected with a mechanical play with mechanical play, and is connected to the cam body. A rotating body, a unidirectional locking part provided on the rotating body so that the unidirectional rotation of the rotating body is prevented at a predetermined rotation angle, and entering into the rotation area of the unidirectional locking part. A stopper that is freely movable and constantly applies an advancing force, and an interlocking member connected to the cylinder that moves the stopper away from the rotation area of the unidirectional locking part when the cylinder advances, and is inserted. The forward rotation of the key from the starting position to the starting position is performed by one operation, and the return rotation of the key is accompanied by an advancing operation of the cylinder that releases the locking of the stopper from the one-way locking portion, and the above-mentioned A vehicle key device in which the rotating body is slightly rotated by the return force of the steering lock mechanism so that the one-way locking portion passes through the locking position of the stopper. (4) The rotating body is rotated slightly by the returning force of the steering lock mechanism. A vehicle key device according to claim (3), which is integrated with a cam body.