JPH01178687A - Steering locker - 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 Technical Problem I- The present invention relates to a locking device, and particularly to a steering locking device for controlling the rotation of a steering shaft of an automobile.

Current automobiles use a steering lock that simultaneously controls the steering shaft and ignition switch of the automobile, as shown in, for example, Japanese Patent Application Laid-Open No. 61-295154. This steering lock includes a key cylinder that is housed in a knob and is rotated between a locked position and an unlocked position by a key, a cam that is rotated together with the key cylinder, and a locking position II position that engages with the steering shaft. The locking clot is moved between the engagement and the unlocked position by the cam and the sublink, and the ignition switch is connected to the rear of the force t1. Insert the key into the key cylinder and rotate it, the key will be in the l L OCK position.
, l 011"l-' position ti'ij, l A CC position", engine l' ON 43'/, i white "",
Activate the starter motor l S TA R'1. It is possible to sequentially move the rotating field to each 'position'. l L
When the key is removed in the "OCK position", the key cylinder cannot rotate, prohibiting the ignition switch from operating, and the locking cylinder engages with the steering link shirt 1-, preventing the rotation of the steering link shirt 1-. It is designed to prevent and prevent theft.

While driving on a slope etc., the fuel Tatsumi IJ was exhausted again.
:3- is d(The driver may take the key out of the steering wheel lock. In this case, the steering wheel shirt 1- may not be able to rotate and there is a risk of a ramming accident. Preventing such accidents. Therefore, the steering lock has
An anti-rotation device is provided to prevent rotation to the ILOcK position. For example, as mentioned in Japanese Patent Publication No. 49-11908, if a rotation prevention device l''Pi to ILOcK position 111'' is used,
A locking piece that engages with the key cylinder rotating member of the steering lock is provided, and after pressing this locking piece, turn the key to r L
Mechanical structures that can be rotated to the "OCK position" are known. In addition, as shown in Japanese Utility Model Publication No. 1966/1986, after putting the engaging part with the lume on the key cylinder and pressing the key cylinder inward with the key, the key is pressed into the l L OCK.
Mechanical structures that can be rotated into "position" are known. l-L
OCK rank i? The anti-rotation device for I'J is
By performing an additional operation of pressing the locking piece or key before rotating the key to LOcK position, the driver is given an opportunity to consider the operation of removing the key (1), thereby improving safety. ing.

By the way, when the car is completely stopped and the driver gets out of the car, , ILOCK the key
When rotating to the "ILOcK" position, the rotation prevention device requires one operator to perform additional operations such as pressing a locking piece. However, such an additional operation requires pressing the locking piece with one finger while simultaneously rotating the key with the other (J) finger.

This is a hassle for drivers. For this reason, there has been a demand for a locking piece mounting structure that can be operated with a simplified operation. However, until now, no steering lock device has been developed that meets these requirements, and urgent development is desired.

SUMMARY OF THE INVENTION An object of the present invention is to provide a steering lock device that can meet the requirements set forth in the second paragraph and can prevent the driver from operating the steering wheel erroneously.

The steering lock device of this invention has six locks inside the casing that are movable by the casing and the key, and are self-movable. A 16-year-old key cylinder, a cover fixed to the front of the key cylinder, and a notch formed in the key cylinder. lfl+ A locking member arranged at the QJ function, a spring that biases the locking member to the mj force of the key cylinder, and a stopper that is provided on the locking member and that is biased by the spring and limits the protrusion of the locking member. an engaging portion which is changed into a key cylinder, casing or cover and abuts the stopper surface of the locking member; and an engaging portion which is formed on the cover and is l' O
At the "N position", press the locking member and the cam part that engages with each other, insert the key into the key cylinder, and then turn the key cylinder smoothly from the "L" OCK position to the "1ON position", and then move the key cylinder from the "1ON position". When the key cylinder is rotated to the "L OCK position", the collar of the cam part formed on the locking member or cover at the lock release position of the key cylinder.
The rotation of the key cylinder is blocked by contact with the surface, and the key cylinder is pushed down at the unlocked position (Then, the engagement between the IL member and the stopper surface of the cam section is released, and the key cylinder is moved to the 1LOCK position.) ＼Has a rotatable configuration.

When the key is rotated from the ION position to the ILOcK position, the stopper surface of the locking member or the cam part of the cover is released at a certain angle from the key cylinder. The key cylinder is prevented from rotating. When the key is pressed manually, the locking member or the stopper (1) of the cam portion of the cover is also released, allowing the operator to rotate the key to the ILOCK position using only one hand.

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 8, which are embodiments of the present invention, will be explained below.

As shown in FIG. 1, the steering lock device 10 of the present invention includes a casing 11, a sleeve 12 projecting inside the goose sink 11, and a cover 1:3 fixed to the M portion of the sleeve 12. have

A key cylinder 16 having a flange portion 15 is rotatably disposed within the hole 4 formed in the casing 11. A plurality of tumbler holes 17 are formed in the key cylinder 16, and each tumbler hole 1'/ is equipped with a tumbler in a known manner.

A check lever 20 is attached to the leaf 12 so as to be slidable in the longitudinal direction, and a check lever 22 is attached to the hole 21 formed in the flange portion 15 of the key cylinder 16 so as to be slidable in the radial direction. Also, Rockin Kurotsu 1ku1
8 is a lever that can be moved forward and backward from the hole 19 of the casing 11.
I get kicked. However, these check lever 20 and toku 22 have the same structure and function as those disclosed in Japanese Patent Publication No. 60-42055, and the key detection member 26 and key detection switch 27 have the same structure and function as those disclosed in Japanese Patent Publication No. 59-3829. Since it has the same structure and effects as those disclosed in the above publication, detailed explanation will be omitted. The key cylinder 16 is mounted in the hole 24 of a rotating member 23 disposed within the goose sink 11 so as to be rotatable at 0T and coaxially with the key cylinder 16.

Further, the key cylinder 16 is pressed outward by a spring z5 disposed within the hole 24 of the rotating member 23 between the key cylinder 16 and the rotating member 23.

As shown in FIG. 1, a notch 30 is formed in the outer peripheral portion of the flange portion 15 of the key cylinder 16 in the direction of the axis IJ. A receiving part 31 is provided in the middle of the notch part 30. The locking member 32 has a head portion 3 that comes into contact with a cam portion 38 of the cover ■3.
2a, a shaft portion 32b extending rearward from the head portion 32a, and a flange portion 32c provided at the rear of the shaft portion 32b. The compression spring 3 between the head 32a and the receiving part 3A of the notch 30 is wound around the shaft part 32b.

An arcuate cam portion 38 is formed inside the cover 3. The cam portion 38 engages with the locking member 32 at about 1ON.

In addition, as shown in FIGS. 3 and 6, the key cylinder 1
The flange portion 15 of the sleeve 12 has a first protrusion 36 that moves along the force 40 formed on the sleeve 12. As is clear from the developed view of the cam 40 shown in No. 61dl), the first protrusion 86 is fitted into the recess 41 formed in the cam rf+i40 at the unlocked position, such as the l01-"to'position". be done.

Furthermore, a second protrusion 37 is formed on the flange portion 15 of the key cylinder 16 inside the first protrusion 36 . Figure 6 (
As shown in A), the sleeve 12 has two locking parts 42, 43 that limit the rotation angle of the key cylinder 16.

The second protrusion 87 of the key cylinder 16 engages these locking portions 4.
2 and 43, and these locking parts 42 and 43
By contacting the key cylinder 16, the rotation angle of the key cylinder 16 is regulated.

When the key is inserted into the key cylinder 16 and rotated from the LOCK position to the ON position, the locking member 3
The head 32a of No. 2 is located at the position indicated by A in FIG.

When the key is rotated from this position to the l'ON position, the locking member 32 is rotated counterclockwise together with the key cylinder 16 in FIG.

101' At position B, the locking member 32 enters into the recess 38a of the cam portion 38 due to the elasticity of the spring 33. Thereafter, the locking member 32 moves along the concave portion 38a of the cam portion 38 in the C section to the l' ON position and (STA RT
position.

When the key is rotated to the r LOCK position, the locking member 3z contacts the stopper surface 38b of the cam portion 38 at B, and the key cannot be rotated. When the key is pressed, the head 32a of the locking member 32 is disengaged from the cam portion 38, allowing the key to be rotated to the ILOCK position 16''.

Thus, the key and key cylinder are l' L, O
Although it can rotate smoothly from the CK position to the rON position,
Move the key cylinder 16 from the ION position to the IL○CK position.
When the key cylinder 16 is rotated to the unlocked position, the locking member 32 is formed on the cover 13 and the cam portion 38
The key cylinder 16 comes into contact with the flange surface 38b, and rotation of the key cylinder 16 is prevented.

When the key cylinder 16 is pressed in the lock release position, the engagement between the locking IL portion (+) 132 and the cam portion 38 is released, and the key cylinder 16 can be rotated to the l'LOCK position.

In the above embodiment, the notch 3 formed in the key cylinder 16
In the above example, the locking member 32 is attached to the cover 13 and the cam portion 3B is formed on the cover 13. It is also possible to form a cam portion 38 having a flange surface 38b on the key cylinder 16.

Effects of the Invention As mentioned above, in this invention, the key cylinder or 1' L
When the key is manually pressed when the locking member is in the unlocking position before the "OCK position", the engagement between the locking member and the cover is released by movement of the key. Therefore, the key can be continuously rotated to the 1' LOCK position with one hand without releasing the key.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the steering lock device of the present invention.
Figure 2 is a front view, Figure 3 is a perspective view of the key cylinder, and Figure 4 is a front view.
The figure is a rear view of the cover, Figure 5 is a front view of the key cylinder with the locking member attached, and Figure 6 (A) is the key cylinder whose rotation angle is regulated by the two locking parts J16 formed on the sleeve. 6th developed view showing the rotation angle range of the second protrusion of
Figure (B) is a developed view showing the movement state of the cam surface formed on the sleeve and the first protrusion formed on the key cylinder.
FIG. 1 is an exploded perspective view of the key cylinder and cover, and FIG. 8 is an exploded perspective view of the key cylinder, locking member, and spring. 109. Steering lock device, 11. . casing, 121. Sleeve, 130. Cover, 151. Flange portion, 161. key cylinder,
2300 rotating part phase, 241. hole, 250. Splash, 300. Notch portion, 31. . Ukebe, 320. Locking member, 32a, head, a2b
,,Shaft part, 32c, ;/Lancy part, 3',3
. , spring, 360. first protrusion, 380. cam part,
38b, stopper surface, 400. Cam surface, 42.4
30. Locking part, Patent applicant: Kokusan Metal Industry Co., Ltd. Figure 1 Figure 2 Figure 3

Claims (5)

[Claims] (1) a casing, a key cylinder arranged in the casing so as to be rotatable and axially movable by a key, a cover fixed to the front part of the key cylinder, and one of the cover or the key cylinder a locking member slidably disposed within the formed notch; a spring biasing the locking member forward of the key cylinder; and a spring provided on the locking member and biased by the spring. a stopper surface that limits protrusion of the locking member; an engaging portion provided on the one side and abutting the stopper surface of the locking member; and an engagement portion formed on the other side of the cover or key cylinder and in the unlocked position. It has a cam part that engages with the locking member, and when a key is inserted into the key cylinder, the key cylinder can be smoothly rotated from the "LOCK position" to the "ON position", and the key cylinder can be turned "ON". When the key cylinder is rotated from the "lock position" to the "LOCK position," the locking member contacts the stopper surface of the cam portion in the lock release position to prevent rotation of the key cylinder, and When the key cylinder is pressed, the engagement between the locking member and the stopper surface of the cam portion is released, and the key cylinder is
A steering lock device characterized by being able to rotate to the "OCK" position. (2) The key cylinder has the notch formed in the axial direction on the outer periphery of the flange of the key cylinder, a receiving part is formed in the notch, and the locking member is connected to the locking member. The cover has a head portion along the cam portion of the cover, a shaft portion extending rearward from the head portion, and a flange portion provided at the rear portion of the shaft portion, the head portion and a receiving portion for the notch portion. The steering lock device according to claim 1, wherein the compression spring is installed between the steering lock device and the compression spring. (3) The key cylinder has a protrusion that moves along a cam surface formed on the sleeve, and the protrusion is fitted into a recess formed on the cam surface in the unlocked position. A steering lock device according to scope item (1). (4) The steering lock device according to claim (1), wherein the sleeve has two locking portions that limit the rotation angle of the key cylinder. (5) The key cylinder has an end mounted in a hole of a rotating member disposed in the casing so as to be rotatable together with the key cylinder, and the key cylinder is mounted in the hole of the rotating member within the hole of the rotating member. The key cylinder and the rotating member are pressed outwardly by a spring arranged between
The steering lock device described in item 1).