JP3439851B2 - Steering lock device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock device, and more particularly to a steering lock device for restricting rotation of a steering shaft of an automobile provided at a position away from a position where a key is inserted.

[0002]

2. Description of the Related Art A steering lock device for preventing unauthorized operation of a steering shaft of an automobile is provided in the automobile. For example, as disclosed in Japanese Patent Application Laid-Open No. 5-58248, a steering lock device has been proposed in which the positions of a key cylinder into which a key is inserted and a locking rod that engages with a steering shaft are greatly separated from the viewpoint of design. ing. In this steering lock device, the key cylinder and the locking rod are connected by a long rotor, and the rotational force of the key cylinder is transmitted to the locking rod to lock and unlock the steering shaft.

[0003]

In the conventional steering lock device described above, when the distance between the key cylinder and the locking rod is further increased, the rotor is further lengthened and the weight of the steering lock device is increased. There are drawbacks that do not match. Further, since the straight long rotor is used, the locking rod cannot be attached at a desired position, and the layout for the tilt type handle is also limited.

An object of the present invention is to provide a steering lock device which can fix a lock frame including a key cylinder and a rod frame including a rod member at a desired position while being separated from each other, and can achieve weight reduction and downsizing. .

[0005]

A steering lock device according to the present invention comprises a lock frame (2) fixed adjacent to a driver's seat of an automobile, and a lock frame (2) between a lock position and an unlock position. A key cylinder (14) rotatably disposed therein, a rotor (16) which is integrally rotated with the key cylinder (14) in the lock frame (2) and forms a cam (16a), and a rotor (16 ) A slider (17) connected to the cam (16a), a rod frame (3) fixed adjacent to the steering shaft (11) of the automobile, a lock position for engaging the steering shaft (11) and steering. The rod member (91, 92) sliding in the rod frame (3) between the unlocked position where the engagement with the shaft (11) is released and the rod member (91, 92) are moved toward the locked position. Unlock the hanger spring (93) that urges it and the rod members (91, 92). The rod lever (84) to move the slider (17) to the rod lever (84).
1) and are provided. When the key cylinder (14) is rotated from the locked position to the unlocked position, the rod lever (84) rotates with the movement of the slider (17) and the operation cable (61) to resist the elasticity of the hanger spring (93). The rod member (91,9
When (2) is moved from the locked position to the unlocked position and the key cylinder (14) is rotated from the unlocked position to the locked position, the rod lever moves as the slider (17) and operation cable (61) move in the opposite direction. The (84) rotates in the opposite direction, and the rod members (91, 92) move from the unlocked position to the locked position by the elastic force of the hanger spring (93). Further, this steering lock device is provided in the lock frame (2), and when a key is inserted into the key cylinder (14), a key detection member (30) that rotates from a non-detection position to a detection position, and a rod. A check lever (104) rotatably arranged in the frame (3) and a check lever at a locking position that engages with the rod members (91, 92) when the key detection member (30) is moved to the detection position. (104) is moved and the key detection member (30)
And a control cable (64) for moving the check lever (104) to a non-locking position where the engagement with the rod members (91, 92) is released when is moved to the non-detection position.

This steering lock device has a control member (50) having one end that abuts on the key detection member (30) and one arm (68d) that abuts on the other end of the control member (50) and locks it. A control lever (68) rotatably arranged in the frame (2), and a lever spring (69) for pressing the control lever (68) so that the key detection member (30) moves toward a non-detection position. And the other arm of the control lever (68) (6
8e) is connected to the control cable (64).

[0007] The rod frame (3) is movably movable between a locking position where the rod members (91, 92) are engaged and a non-engaging position where the rod members (91, 92) are disengaged. The locking member (100) arranged at is connected to the control cable (64), and when the key detection member (30) is in the non-detection position, the locking member (100) moves to the locking position, It prevents the rod members (91, 92) from moving to the unlocked position when an external force is applied. Check lever (104) rotatably attached to the locking member (100)
Is biased toward the locked position by the biasing spring (110). Clickball (121) and Clickball (121)
The ball spring (120) that presses the rod frame
A notch (84d) is formed in the rod lever (84) provided in (3). When the rod lever (84) is in the unlocked position, the click ball (121) engages the notch (84d) and pushes the slider (17) against the cam (16a) of the rotor (16). The engagement between the notch (84d) and the click ball (121) is released by the resultant force of the (23) and the hanger spring (93).

[0008]

[Operation] Since the slider (17) and the rod lever (84) are connected by the operation cable (61), the lock frame (2) and the rod frame (3) can be attached at desired positions, and the frame and the inside Since it is not necessary to make the parts of (1) in a long dimension, the steering lock device (1) can be reduced in weight and the degree of freedom in layout design can be increased. Further, since the key detection member (30) and the locking member (100) are connected by the control cable (64), when the check lever (104) in the rod frame (3) attached at a desired position is needed, Can operate.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a steering lock device according to the present invention will be described below with reference to FIGS.

As shown in FIG. 1, a steering lock device 1 according to the present invention includes a lock frame 2 fixed to a dashboard 10 adjacent to a driver's seat of a vehicle, and a steering column adjacent to a steering shaft 11 of the vehicle. And a rod frame 3 fixed to 12. The lock frame 2 and the rod frame 3 are manufactured by, for example, zinc die casting. A steering wheel 13 is attached to the end of the steering shaft 11. As shown in FIG. 8, in the lock frame 2, a sleeve 15, a key cylinder 14 rotatably arranged in the sleeve 15, a rotor 16 connected to the key cylinder 14 and integrally rotated, and a rotor. 16 cams 16
and a rod spring 2 for pressing the slider 17 against the cam 16a of the rotor 16
3 and 3 are arranged. The key cylinder 14 is provided with a slot 19 for accommodating a plurality of tumblers 18 and a tumbler spring 20 and is rotatably arranged in the lock frame 2 between a locked position and an unlocked position, as is known. The tumbler 18 is arranged in the groove 15 a formed in the sleeve 15 when protruding from the key cylinder 14.
The rotation of the key cylinder 14 is blocked. Key cylinder 1
A substantially F-shaped key detection member 30 is rotatably arranged in the notch 22 formed in the head 21 provided on the No. 4 head. The key detecting member 30 includes an arm portion 30a that comes into contact with a key inserted into the key cylinder 14. As shown in FIG. 3, a cap 31 manufactured by zinc die casting is fixed to the front end of the lock frame 2 by a pin 32, and a space between the cap 31 and the key cylinder 14 is made of a sintered alloy or the like. A guard plate 33 for preventing damage is arranged.

A projection 40 having a convex cross section is formed at an end of the key cylinder 14, and the projection 40 is fitted in one end of the rotor 16 into a recess 41 formed in the convex cross section. Rotor 16
The protrusion 42 having a T-shaped cross section formed at the other end of the ignition switch 43 penetrates the through hole 2a formed in the lock frame 2 and is disposed in the recess 2b formed at the rear end of the lock frame 2. It is fitted in the connecting hole 44 of. A groove 15a is formed on the top of the sleeve 15, and the groove 15a
Notches 15c are formed in the respective wall portions 15b on both sides of.
Further, a step portion 15d is formed on the bottom of the groove 15a. The control member 50 including the bent portion 50a and the cam portion 50b is slidably arranged on the step portion 15d in the groove 15a. The bent portion 50a of the control member 50 contacts the upper portion of the key detection member 30. The clip 51 is arranged on the control member 50, and the pair of protrusions 51a of the clip 51 are fitted and fixed to the cutout portions 15c of the wall portion 15b. The clip 51 prevents the control member 50 from falling off.

An outer cable 62 and an inner cable 63 are provided in the first recess 53 formed in the lock frame 2.
End of the operation cable 61 consisting of the inner cable 6
A slider 17 to which the three ends are connected is arranged. Further, in the second recess 54 formed in the lock frame 2 so as to communicate with the first recess 53, the end of the control cable 64 including the outer cable 65 and the inner cable 66 and the shaft 67 are rotatable. And the inner cable 66 is supported on the shaft 7 by the arm 68d and the circular protrusion 68c on which the end 50c of the control member 50 abuts.
A control lever 68 having the other arm 68e formed with a hole 68a axially attached by 3 and a lever spring 69 for pressing a protrusion 68b of the control lever 68 are arranged. The first recess 53 and the second recess 54 are closed by the cover 70. A micro switch 72 is attached to the protrusion 71 of the cover 70, and a movable piece (not shown) of the micro switch 72 is arranged so as to be able to contact the cam portion 50b of the control member 50. The slider 17 is provided with an opening 17a through which the rotor 16 penetrates and a driven portion 17b that abuts on the cam 16a of the rotor 16. As shown in FIG.
The cable end 63 a fixed to the end of the inner cable 63 has a recess 1 formed in a shape complementary to the slider 17.
7c is fitted.

As shown in FIGS. 10 and 11, a support block 80 is arranged in the recess 3a formed in the rod frame 3. The support block 80 has a housing cavity 82 in which a locking rod 91, a hanger 92 connected to the locking rod 91 as shown in FIG. 10, and a hanger spring 93 for urging the hanger 92 outward are arranged. It The locking rod 91 and the hanger 92 form a rod member. The locking rod 91 is slidably arranged in a through hole 81 formed in communication with the housing cavity 82.

As shown in FIG. 10, the rod lever 84 is rotatably supported by the support block 80 by a shaft 85 mounted in the through hole 84a and fixed to a support hole 86 provided in the support block 80. The cable end 63b of the inner cable 63 of the operation cable 61 is mounted in the recess 84b formed in the rod lever 84. The circular end portion 84c of the rod lever 84 contacts the shoulder 92a of the hanger 92. When the rod lever 84 is pulled counterclockwise by being pulled by the inner cable 63, the hanger spring 93
The rod lever 84 moves the hanger 92 in the direction away from the through hole 81 against the resilience. Inner cable 6
When the tensile force of 3 disappears, the hanger 92 moves closer to the through hole 81 by the elastic force of the hanger spring 93. Therefore, the locking rod 91 connected to the hanger 92 is
When the hanger 92 moves in a direction away from the through hole 81, the engagement with the steer shaft 11 is released.
Move to the unlocked position indicated by the dotted line at
Moves toward the through hole 81, it moves to the lock position of FIG. 13 and FIG. 17 where it engages with the steering shaft 11.

As shown in FIG. 11, when the rod lever 84 has a cutout portion 84d, the click ball 121 pressed by the ball spring 120 into the cutout portion 84d.
Engage. Therefore, the rod lever 84 is held in the unlocked position shown by the dotted line in FIG. Therefore, even if the operation cable 61 and the control cable 64 become uncontrollable due to some trouble, the locking rod 91 does not engage with the steering shaft 11, and there is no risk of the steering being locked unexpectedly during traveling. If only the control cable 64 becomes defective,
When the rotor 16 is rotated in the lock position direction, the engagement between the cutout portion 84d and the click ball 121 is released by the resultant force of the rod spring 23 and the hanger spring 93, and the rod lever 84 is rotated clockwise and locked. be able to.

As shown in FIG. 10, a locking member 100 is slidably arranged in the opening 83 of the support block 80. The notch 101 to which the cable end 66a of the inner cable 66 is attached is provided in the bent portion 102 formed at one end of the locking member 100. A locking projection 103 that is detachably locked in the groove 92b formed in the hanger 92 is formed at the other end of the locking member 100. A pin 109 that rotatably supports the check lever 104 is attached to the through hole 105 of the locking member 100. Check lever 10
4 and the mounting hole 108 of the lug 107 protruding from the bent portion 102 of the locking member 100.
The eccentric spring 110 is mounted between and, but when the tip portion 111 of the check lever 104 is not in contact with the hanger 92, the eccentric spring 110 is in a free length state in which no elastic force is generated. When the steering lock device is in the locked state, the locking projection 103 of the locking member 100 is in the locking position shown by the solid line in FIG.
Therefore, the locking rod 91 is prevented from moving to the unlocked position due to the impact. When the key is inserted into the steering lock device, the locking member 100 is locked as shown in FIG.
The locking member 1 moves to the unlocked position indicated by the dotted line 2
The engagement between the locking projection 103 of 00 and the groove 92b of the hanger 92 is released, but the tip portion 111 of the check lever 104 is released.
Contacts the side wall 92d of the hanger 92. At this time, since the check lever 104 is rotated against the elastic force of the displacement spring 110, the tip portion 111 is pressed against the side wall 92d by the elastic force of the displacement spring 110. Then, when the hanger 92 and the locking rod 91 are moved from the locked position to the unlocked position, the tip portion 111 of the check lever 104 is locked by the cutout portion 92c formed in the side wall 92d of the hanger 92.

In the above structure, when the key is not inserted into the steering lock device, the locking rod 91 is at the lock position for engaging the steering shaft 11 and the operation cable 61 is shown as shown in FIGS. 19 and 20.
The control cable 64 is in the locked state shown in FIG.
In this case, the locking projection 103 of the locking member 100 causes the hanger 9
Since the locking rod 91 is locked in the lock position by being locked in the groove 92b of No. 2, the locking rod 91 does not move to the unlock position even if a shock is applied to the steering lock device.

Next, when the key 130 is inserted into the key cylinder 14, it abuts on the arm portion 30a of the key detecting member 30 to rotate the key detecting member 30 inward. For this reason,
The key detection member 30 contacts the bent portion 50a of the control member 50 to press the control member 50 inward. Control member 50
The cam portion 50b of the above operates the micro switch 72 to generate a signal for detecting the insertion of the key 130.
When the control member 50 is pressed inward by the key detection member 30, the circular protrusion 68c of the control lever 68 is pressed against the elasticity of the spring 69, so that the control lever 68 is rotated counterclockwise in FIG. It Therefore, the inner cable 66 of the control cable 64 is pressed outward,
The locking member 100 moves from the locking position shown in FIG. 15 to the non-locking position shown in FIG. At this time, as shown in FIG. 21, the tip portion 111 of the check lever 104 contacts the side surface 92d of the hanger 92 against the elastic force of the deflection spring 110.

Next, when the key 130 and the key cylinder 14 are rotated from the locked position to the unlocked position, the rotor 1
The slider 17 contacting the cam 16a of No. 6 moves from the locked position shown by the solid line in FIG. 9 to the unlocked position shown by the dotted line against the elastic force of the rod spring 23. Therefore, the inner cable 63 of the operation cable 61 is connected to the rod lever 8
4 is rotated to move the hanger 92 from the lock position shown in FIG. 17 to the unlock position shown in FIG. 18, so that the locking rod 91 locks the steering shaft 11 against the elasticity of the hanger spring 93. Is moved to the unlocked position where the lock is released. At this time, the tip portion 111 of the check lever 104 is attached to the hanger 92.
Is in contact with. When the hanger 92 is moved to the unlock position, the tip portion 111 of the check lever 104 is locked by the notch 92c of the hanger 92, as shown in FIG. 23, so that the hanger 92 and the locking rod 91 are in the unlock position. Mechanically held in.

When the key 130 and the key cylinder 14 are returned from the unlocked position to the locked position, the cam 1 of the rotor 16 is
Since 6a is returned to the initial position, the slider 17 is returned from the unlocked position to the locked position by the elastic force of the rod spring 23. Therefore, the inner cable 63 of the operation cable 61 transmits the pressing force to the rod lever 84, and the rod lever 84 is moved from the unlock position shown by the dotted line in FIG. 11 to the lock position shown by the solid line. However, the hanger 92 does not allow the tip portion 11 of the check lever 104.
23, it is held in the unlocked position together with the locking rod 91 as shown in FIG.

When the key 130 is pulled out from the key cylinder 14, the elastic force of the spring 69 causes the control lever 68 to rotate to the initial position, and the control member 50 and the key detection member 30 to return to the initial position. Further, since the locking member 100 is returned from the unlocked position shown in FIG. 16 to the locked position by the pulling force applied to the inner cable 66 of the control cable 64, as shown in FIG. 24, the check lever 104 and the hanger 92 are provided. The engagement with the notch 92c is released, and the hanger 92 and the locking rod 91 are returned from the unlocked position to the locked position by the elastic force of the hanger spring 93. Therefore, as shown in FIGS. 25 and 20,
The projection 103 of the locking member 100 is again provided with the groove 92 of the hanger 92.
engage b.

In this embodiment, since the slider 17 and the rod lever 84 are connected by the operation cable 61, the lock frame 2 and the rod frame 3 can be attached at desired positions, and the frame and the internal parts have a long dimension. Since it is not necessary to create it, the weight of the steering lock device is reduced and the degree of freedom in layout design is increased. Further, since the key detecting member 30 and the locking member 100 are connected by the control cable 64, the check lever 104 in the rod frame 3 attached at a desired position.
Can be activated when needed.

The embodiment of the present invention is not limited to the above-mentioned embodiments, and can be modified. For example, the key detecting member and the check lever may be operatively connected by other operating force transmitting means instead of the control cable. Further, the control cable may be omitted.

[0024]

According to the steering lock device of the present invention, the key lock cylinder and the locking rod are operatively connected to each other and the downsized and lightweight steering lock device is provided even if the mounting positions of the lock frame and the rod frame are separated from each other. Can be obtained.

[Brief description of drawings]

FIG. 1 is a sectional view of a steering lock device according to the present invention showing a state where the steering lock device is attached to a steering shaft.

FIG. 2 is a front view of a steering lock device according to the present invention.

FIG. 3 is a sectional view taken along line AA of FIG.

FIG. 4 is a plan view of a steering lock device according to the present invention showing a state in which a cover is removed.

FIG. 5 is a side view of the steering lock device according to the present invention.

FIG. 6 is a sectional view of a steering lock device showing a key detection member.

7 is a sectional view taken along the line BB of FIG.

FIG. 8 is an exploded perspective view of a lock frame.

9 is a sectional view taken along the line CC of FIG.

FIG. 10 is an exploded perspective view of a rod frame.

FIG. 11 is a sectional view of a rod frame.

FIG. 12 is a transverse sectional view of a rod frame.

13 is a cross-sectional view taken along the line DD of FIG.

FIG. 14 is a bottom view of the rod frame.

FIG. 15 is a sectional view of the steering lock device in a locked state.

FIG. 16 is a sectional view of the steering lock device in an unlocked state.

FIG. 17 is a cross-sectional view showing the relationship between the rod lever and the slider in the locked state.

FIG. 18 is a cross-sectional view showing the relationship between the rod lever and the slider in the unlocked state.

FIG. 19 is a cross-sectional view showing a state where the locking rod is locked to the steering shaft.

FIG. 20 is a block diagram showing the relationship between the locking member, the check lever, and the hanger before the key is inserted into the key cylinder.

FIG. 21 is a block diagram showing the relationship between the locking member, the check lever, and the hanger when the key is inserted into the key cylinder.

FIG. 22 is a block diagram showing the relationship between the locking member, the check lever, and the hanger when the key inserted in the key cylinder is rotated to the unlock position.

FIG. 23 is a block diagram showing the relationship between the locking member, the check lever, and the hanger when the key inserted in the key cylinder is rotated to the ACC position, the ON position, and the start position and then returned from the ACC position to the locked position.

FIG. 24 is a block diagram showing the relationship between the locking member, the check lever, and the hanger when the key is removed from the key cylinder.

FIG. 25 is a block diagram showing the relationship between the locking member, the check lever, and the hanger when the hanger and the locking rod move from the unlock position to the lock position.

[Explanation of symbols]

1 ... Steering lock device, 2 ... Lock frame, 3 ... Rod frame, 11 ... Steering shaft, 14 ... Key cylinder, 16 ... Rotor, 16a ... Cam, 17 ... Slider, 23 ...
.Rod spring, 30..Key detection member, 50
..Control member, 61..Operation cable, 64..Control cable, 68..Control lever, 68d..One arm, 68e..Other arm, 69..Lever spring, 91..Locking rod, 84 ..Rod levers, 84d ... Notches, 92..Hangers,
93 ··· Hanger spring, 100 ··· Locking member,
104 ··· check lever, 110 ··· deflection spring, 120 · · ball spring, 121 · · · click ball,

Claims (5)

(57) [Claims] 1. A lock frame fixed adjacent to a driver's seat of an automobile, a key cylinder rotatably arranged in the lock frame between a lock position and an unlock position, and a key cylinder in the lock frame. A rotor integrally rotated with a cam, a slider connected to the cam of the rotor, a rod frame fixed adjacent to a steering shaft of an automobile, a lock position engaging the steering shaft, and a steering shaft The rod member that slides in the rod frame between the unlocked position and the unlocked position, the hanger spring that urges the rod member toward the locked position, and the rod member that moves toward the unlocked position. Equipped with a rod lever for operating the key cylinder and an operation cable for connecting the slider and the rod lever. When the lock lever is rotated from the lock position to the unlock position, the rod lever is rotated along with the movement of the slider and the operation cable, and the rod member is moved from the lock position to the unlock position against the elasticity of the hanger spring. When the is rotated from the unlocked position to the locked position, the rod lever rotates in the opposite direction as the slider and operation cable move in the opposite direction, and the rod member moves from the unlocked position to the locked position due to the elasticity of the hanger spring. In the steering lock device, the key detection member is provided in the lock frame and rotates from the non-detection position to the detection position when the key is inserted into the key cylinder, and the check lever rotatably arranged in the rod frame. To the locking position that engages the rod member when the key detection member is moved to the detection position. A steering cable comprising: a control cable for moving the check lever and for moving the check lever to a non-locking position where the engagement with the rod member is released when the key detecting member is moved to the non-detecting position. Locking device. 2. A control member having one end contacting the key detection member, a control lever having one arm contacting the other end of the control member and rotatably arranged in the lock frame, and a key detection member. The steering lock device according to claim 1, further comprising: a lever spring that presses the control lever so as to move toward the non-detection position, and the other arm of the control lever is connected to the control cable. 3. The locking member disposed in the rod frame movably between a locking position for engaging the rod member and a non-engaging position for disengaging the rod member is a control cable. The locking member moves to the locking position when the key detecting member is in the non-detecting position and prevents the rod member from moving to the unlocking position when an external force is applied. Steering lock device. 4. The steering lock device according to claim 3, wherein the check lever rotatably attached to the locking member is biased toward the locking position by a biasing spring. 5. A lock frame fixed adjacent to a driver's seat of an automobile, a key cylinder rotatably arranged in the lock frame between a lock position and an unlock position, and a key cylinder in the lock frame. A rotor integrally rotated with a cam, a slider connected to the cam of the rotor, a rod frame fixed adjacent to a steering shaft of an automobile, a lock position engaging the steering shaft, and a steering shaft The rod member that slides in the rod frame between the unlocked position and the unlocked position, the hanger spring that urges the rod member toward the locked position, and the rod member that moves toward the unlocked position. Equipped with a rod lever for operating the key cylinder and an operation cable for connecting the slider and the rod lever. When the lock lever is rotated from the lock position to the unlock position, the rod lever is rotated along with the movement of the slider and the operation cable, and the rod member is moved from the lock position to the unlock position against the elasticity of the hanger spring. When the is rotated from the unlocked position to the locked position, the rod lever rotates in the opposite direction as the slider and operation cable move in the opposite direction, and the rod member moves from the unlocked position to the locked position due to the elasticity of the hanger spring. In the steering lock device, a click ball and a ball spring that presses the click ball are provided in the rod frame, a cutout is formed in the rod lever, and the clickball engages with the cutout when the rod lever is in the unlock position. Rod spring that pushes the slider against the cam of the rotor , Steering lock device characterized in that the engagement between the cutout portion and the click ball by the resultant force of the hanger spring is released.