JP2540525Y2 - Vehicle 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 steering lock device for a vehicle in which a lock mechanism for locking a steering shaft of an automobile steering wheel and a switch mechanism for controlling an ignition circuit, a starter circuit and the like are integrated. In particular, the present invention relates to a switch for detecting rotation, pushing, and the like of a cylinder lock rotor of the device.

[0002]

2. Description of the Related Art In recent years, various kinds of switches such as a key insertion detection switch, a key depression detection switch, and a charging terminal of a rechargeable key have been attached to this type of steering lock device.

[0003]

Since the steering lock device is mounted around the steering wheel, it is required to reduce the size. However, if the various switches as described above are mounted, the steering lock device will increase in size. Would. Therefore, the switches to be mounted are required to be as small as possible. The present invention has been made to meet this demand.
It is an object of the present invention to reduce the size of the steering lock device.

[0004]

According to the present invention, there is provided a steering lock device provided with a switch unit at a front portion of a key insertion portion, wherein the switch unit has a key insertion hole, and has a key insertion hole . A movable member provided at a front portion, and a fixed member provided on an outer periphery of the movable member.
It can slide in the orthogonal direction and can be pushed in the key insertion direction.
The switch unit detects these displacements, or the switch unit has a key insertion hole, a movable member provided at the front of the cylinder lock rotor, and a switch member provided on the outer periphery of the movable member. The movable member is perpendicular to the rotor rotation axis with respect to the fixed member.
A switch unit that is slidable in the direction of rotation and rotatable in the direction of rotation of the rotor so that the switch unit detects these displacements, or the switch unit has a key insertion hole, A movable member provided at the front of the lock rotor,
A fixed member provided on the outer periphery of the movable member,
The movable member can be pushed in the key insertion direction with respect to the fixed member
The switch unit is rotatable in the rotation direction of the rotor, and the switch unit detects these displacements.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. 1 is a longitudinal sectional view of a vehicle steering lock device according to the present invention, FIG. 2 is an exploded perspective view thereof, FIG. 3 is an operation explanatory view of a switch unit, and FIG. 4 is a sectional view showing a switch unit portion in an ACC position. 5, FIG. 6 is an electric control circuit diagram, FIG. 7 is an AA sectional view of FIG. 1, FIG. 8 is an exploded perspective view of a lock prevention mechanism, and FIG. 9 shows an engagement relationship between a second rotor and a locking portion. FIG. 10 is a front view showing the switch unit at the LOCK position, and FIG.
It is sectional drawing.

As shown in FIGS. 1 and 2, the steering lock device S is mounted on a steering column around a steering shaft via a mounting portion 70. An ignition switch 40 is disposed at the rear end of the body 8 made of a hard resin material of the steering lock device S, and a cylinder lock 41 that is operated by a key 37 and operates the ignition switch 40 is provided inside.
Is housed. The cylinder lock 41 includes a first rotor 12 that houses a plurality of lock tumblers, an outer 42 that houses the first rotor 12, and a first rotor 1.
A second rotor 43 engaged with a square hole behind the second rotor 43;
And a joint 44 engaged with a square hole behind the rotor 43. Further, the joint 44 is engaged with the ignition switch 40 by a square hole, and when the first rotor 12 is rotated by operating the key 37,
The ignition switch 40 can be operated via the second rotor 43 and the joint 44. Here, a coil spring 45 is interposed between the second rotor 43 and the joint 44, thereby urging the first rotor 12 forward through the second rotor 43. As shown in FIGS. 1 and 7, a lock mechanism 71 is housed in the rear part of the body 8 at right angles to the cylinder lock 41. The lock mechanism 71 includes a lock pin 46 that is engaged and disengaged from the steering shaft,
And a slider 48 which engages with a semicircular cam 47 formed on the joint 44 and slides left and right by operating the key 37. Here, a notch groove 48a is formed in the lower surface of the slider 48,
The lock pin 46 can be held at the unlock position by engaging a rear end 61b of an engagement piece 61 described later with the notch groove 48a. It should be noted that the slider 48 always holds the lock pin 4
6 is urged in a direction to protrude (to the right in FIG. 7). As shown in FIG. 1, the body 8 is provided with a lock prevention mechanism 72 located on the side of the cylinder lock 41. The lock prevention mechanism 72 includes a resin unit case 59 and a shaft 60 attached to the unit case 59.
And a spring 62 for urging the front end 61a of the engagement piece 61 toward the first rotor 12 side. The unitized lock prevention mechanism 72 is fitted in a concave groove (not shown) formed on the outer periphery of the outer 42. The first rotor 12 houses a key slider 74 at a front end thereof, and the key slider 74 moves in the radial direction in accordance with insertion and removal of the key 37. Here, the engagement piece 61 is urged by the spring 62 in a direction in which a front end 61 a of the engagement piece 61 is engaged with the key slider 74. Therefore, when the key 37 is inserted into the first rotor 12 at the LOCK position, the key slider 74 moves radially outward, whereby the engaging piece 61 swings, and the rear end 61b is moved to the lower surface of the slider 48. Abut. When the first rotor 12 is rotated to the ACC position in this state, the joint 44 also rotates via the second rotor 43, and the semicircular cam 47 formed on the joint 44 causes the slider 48 to move as shown in FIG. Slides to the left, so that the engaging piece 6 is inserted into the notch groove 48a formed on the lower surface of the slider 48.
The first rear end 61b is engaged so that the lock pin 46 can be held at the unlock position (FIG. 7). FIG. 1, FIG. 2,
As shown in FIG. 8, the body 8 is provided with a rotation prevention mechanism 73 located on the opposite side of the lock prevention mechanism 72. The rotation preventing mechanism 73 includes a frame 50 that accommodates the solenoid actuator, a locking piece 51 provided below the frame 50 and slidable by a plunger 52 of the solenoid actuator, and a locking piece 51. And a spring 53 that urges the plunger 52 in a direction opposite to the retraction direction of the plunger 52. The locking piece 51 is bent downward to form a locking portion 54. When the frame 50 is fixed to the body 8 by welding, the locking portion 54 is formed by a recess formed in the body 8. Notch window 55 drilled in 55
Through a, it is engaged with a peripheral groove 56 formed on the outer periphery of the second rotor 43. Here, a locking surface 56a is formed in a front portion of the circumferential groove 56 (see FIG. 9), and by engaging the locking portion 54 with the locking surface 56a,
The rotation of the second rotor 43 to the LOCK position can be prevented. The unitized rotation preventing mechanism 73 is covered with a unit cover 58 so that dust and the like do not enter the rotation preventing mechanism 73. The frame 50 is provided with a coupler portion 57 for supplying power, and a coupler 77 at the tip of a lead wire 76 connected to a control circuit on the vehicle side is connected to the coupler portion 57. .

As shown in FIGS. 1 and 2, an electric unit 75 is attached to the front of a key insertion portion of the steering lock device S. A switch unit 80 including a push-in detection mechanism and a charging mechanism for a rechargeable key is accommodated. The electrical unit 75 includes a donut-shaped printed board 1 and a resin case 2 supporting the printed board 1.
And a fixing member composed of a transparent resin cover 3 fitted over the printed circuit board 1 and fitted to the case 2, and rotated by being guided by a U-shaped guide wall 5 formed on the case 2. And a movable member 4 provided so as to be slidable and slidable in the lateral direction. The movable member 4 is accommodated in a metal cover cap 6 and attached to a front portion of a key insertion portion of the steering lock device S. Here, the electrical component unit 75 first inserts the key groove 7 formed in the cover cap 6 into the body 8.
Are temporarily engaged with the engaging projections 9 formed thereon, and are fixed by driving a plurality of fastener pins 10. A lead terminal 35 for connecting a signal line of each switch, which will be described later, to a control circuit on the vehicle side is provided upright on the printed circuit board 1. On the other hand, the lead terminal 35 is inserted into the case 2. A coupler section 36 is formed in order to achieve this. Then, a coupler 79 at the tip of a lead wire 78 connected to a control circuit on the vehicle side is connected to the coupler section 36. FIG. 2, FIG. 3 (a), FIG.
(A), as shown in FIGS. 10 and 11, the movable member 4
Has a key insertion hole 11 at the center thereof, and a guide groove 13 which is horizontally long at right angles to the key insertion hole 11 for engaging a guide pin 13 provided on the front surface of the first rotor 12. 14 are provided. Thereby, the movable member 4
Are in a state of being able to slide integrally with the first rotor 12 in the rotation direction and laterally. Further, the movable member 4
Is formed with a concave portion 15 in the axial direction.
A coil spring 16 and a steel ball 17 are accommodated therein. The steel ball 17 is pressed against the back of a metal protector 18 provided on the front of the movable member 4 by the urging force of the coil spring 16. Therefore, as shown in FIG. 4B, when the key 37 is pushed in the ACC position, the first rotor 12 is pushed in accordance with the pushing, and the movable member 4 pushes the steel ball 17 by the urging force of the coil spring 16. By pressing the back side of the protector 18, the first rotor 12
Is displaced in the pushing direction.

FIG. 2, FIG. 3, FIG. 4 (a), FIG.
As shown in FIG. 2, the movable member 4 is provided with a pair of charging terminals 19, 20 having one end bent in an arc shape in the key insertion hole 11 and having the other end exposed to the outer peripheral surface. The printed circuit board 1 is provided with a pair of leaf spring contacts 23 and 24 for detecting key insertion. The leaf spring contact 24 on the detection side is connected to a warning device 81 such as a buzzer provided on the vehicle side. (FIG. 6). Here, the ground-side leaf spring contact 23 has its swinging end in contact with the outer peripheral surface of the movable member 4, and the detection-side leaf spring contact 24.
Are usually separated from each other. For this reason,
Before the key 37 is inserted, the movable member 4 is turned on by the spring force of the leaf spring contact 23 on the ground side.
(FIG. 3A, FIG. 10 and FIG. 11) so that dust and the like do not enter the cylinder lock 41. ing. The movable member 4 has a key insertion hole 1.
The taper surface 22 is formed on one side of the key 1 so that when the key 37 is inserted, the tip of the key 37 comes into contact with the taper surface 22 so that the movable member 4 can slide in the lateral direction. 3B, the key 37 can be guided to the key insertion hole 21 of the first rotor 12. Also,
When the movable member 4 slides in the horizontal direction when the key 37 is inserted, the swinging end of the ground-side leaf spring contact 23 is pressed and abuts on the detection-side leaf spring contact 24, and the key 37 is pressed. Insertion can be detected. The detection signal is used in a device for preventing the key 37 from being forgotten, and activates the warning device 81 to notify that the key 37 has been forgotten. As shown in FIG. 2 to FIG.
A pair of sliding contacts 25 and 26 slidable on the outer peripheral surface of the movable member 4 are provided side by side. As shown in FIG.
One sliding contact 25 is connected to a solenoid 30 in the solenoid actuator, and the other sliding contact 2
6 is connected to the shift lever switch 29. Here, the shift lever switch 29 is
(Parking) Open electrical circuit when in position
The configuration is such that the electric circuit is closed when it is at a position other than the position. Therefore, when the key 37 is pressed in the ACC position while the shift lever is in a position other than the P position, the movable member 4 is moved to the first rotor 12 as described above.
Of the charging terminal exposed to the outer periphery of the movable member 4 is connected to the pair of sliding contacts 25,
26 (FIGS. 3 (c) and 4 (b)), thereby forming an electrically closed circuit (see FIG. 5). As a result, the solenoid 30 is excited, the plunger 52 is sucked, the locking portion 54 of the locking piece 51 slides forward against the urging force of the spring 53, and the locking portion 54 is Since the second rotor 43 is engaged with the locking surface 56a of the peripheral groove 56 formed on the outer periphery of the rotor 43, the rotation of the second rotor 43 to the LOCK position is prevented. On the other hand, when the shift lever is brought to the P position, the shift lever switch 29 is opened, so that the key 37 is depressed at the ACC position to push the pair of sliding contacts 2.
The solenoid 30 is not excited even when the connection between the first and second rotors 5 and 26 is conducted. As a result, the locking portion 54 of the locking piece 51 does not engage with the locking surface 56a. The steering shaft can be locked by rotating the lock shaft 12 to the LOCK position. As shown in FIGS. 1 to 4, the printed circuit board 1 is provided with a charging leaf spring contact 27 that contacts the positive terminal 20 of the charging terminal at the ON position of the movable member 4. The leaf spring contact 27 is connected to the charging circuit 31 on the vehicle side (FIG. 6). When the charging leaf spring contact 27 is in contact with the positive terminal 20 of the charging terminal, the other end of the ground terminal 19 of the charging terminal is in contact with the ground leaf spring contact 23. (Fig. 3
(D)). On the other hand, the key 37 is provided with a pair of charging contacts 38 and 39 on both side edges thereof, and the pair of charging contacts 38 and 39 are provided in the key insertion hole 11 of the movable member 4.
Are in contact with the charging terminals 19 and 20, respectively. Accordingly, the battery in the key 37 with the key code transmitting device is charged by the charging circuit 31 on the vehicle side at the ON position.

[0009]

[Effects of the Invention] In the present invention, with the above configuration , displacements in at least two different directions are particularly detected.
By being configured to be able to output, the sliding displacement of the conventional movable member,
Each of the push-in displacement and the rotational displacement is based on an individual configuration.
Compared to the case where only one direction displacement was detected,
With a simple structure, various switches such as a key insertion detection switch, a key press detection switch, and a charging terminal of a rechargeable key can be compactly unitized, and the steering lock device can be downsized. Has an effect. In the state where no insert key, it means that the movable member of the switch unit also serves as a shutter function for closing a rotor of a key insertion hole, independently for opening and closing a conventional manner shutter plate
Escape space for hinged mechanism and shutter opening movement
There is no need to provide any parts, so the switch unit is limited.
It is possible to prevent dust and the like from entering the steering lock device within the limited space of the constituent members and the space .

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a steering lock device for a vehicle according to the present invention.

FIG. 2 is an exploded perspective view of the vehicle steering lock device according to the present invention.

FIG. 3 is a diagram illustrating the operation of a switch unit.

FIG. 4 is a cross-sectional view showing a switch unit at an ACC position.

FIG. 5 is an electric control circuit diagram.

FIG. 6 is an electric control circuit diagram.

FIG. 7 is a sectional view taken along the line AA of FIG. 1;

FIG. 8 is an exploded perspective view of a lock prevention mechanism.

FIG. 9 is an explanatory diagram showing an engagement relationship between a second rotor and a locking portion.

FIG. 10 is a front view showing a switch unit at a LOCK position.

FIG. 11 is a sectional view taken along line BB of FIG. 10;

[Explanation of symbols]

 S Steering lock device 1 Printed circuit board 2 Case 3 Cover 4 Movable member 5 Guide wall 6 Cover cap 11 Key insertion hole 12 First rotor 16 Coil spring 17 Steel ball 18 Protector 19 Charging terminal 20 Charging terminal 23 Leaf spring contact 24 Leaf spring Contact 25 Sliding contact 26 Sliding contact 27 Leaf spring contact for charging 37 Key 38 Charging contact 39 Charging contact

Claims (7)

(57) [Scope of request for utility model registration] 1. A steering lock device having a switch unit at a front portion of a key insertion portion, wherein the switch unit has a key insertion hole, and has a front portion of a cylinder lock rotor .
A movable member, and a fixed member provided on the outer periphery of the movable member, the movable member with respect to the fixed member ,
Sliding in the direction perpendicular to the rotor rotation axis and in the key insertion direction
A steering lock device for a vehicle, wherein the switch unit is pushable and the switch unit detects these displacements. 2. A steering lock device comprising a switch unit at a front part of a key insertion part, the switch unit having a key insertion hole, and a front part of a cylinder lock rotor .
A movable member, and a fixed member provided on the outer periphery of the movable member, the movable member with respect to the fixed member ,
Sliding in the direction perpendicular to the rotor rotation axis and rotating the rotor
A steering lock device for a vehicle, characterized in that the switch unit is rotatable in such a direction that the switch unit detects these displacements. 3. A steering lock device having a switch unit at a front portion of a key insertion portion, wherein the switch unit has a key insertion hole, and has a front portion of a cylinder lock rotor .
A movable member, and a fixed member provided on the outer periphery of the movable member, the movable member with respect to the fixed member ,
Pushable in key insertion direction and rotated in rotor rotation direction
A steering lock device for a vehicle, wherein the switch unit is enabled to detect these displacements. 4. A movable member is slidable between a matching position and a closing position with respect to a key insertion hole of a cylinder lock rotor, and is spring-biased to the closing position. The steering lock device for a vehicle according to claim 1 or 2, wherein: 5. The switch unit has a pair of leaf spring contacts which are provided on the fixed member side and are always separated from each other. When the key is inserted into the key insertion hole and the movable member is slid, the switch unit is displaced. The steering lock device for a vehicle according to claim 1 or 2, wherein one of the pair of leaf spring contacts is pressed to contact the other. 6. The switch unit has a pair of contacts provided on a fixed member side and one contact provided on a movable member side, and when the movable member is depressed and displaced by pressing a key, the switch unit is turned on. The steering lock device for a vehicle according to claim 1 or 3, wherein said contact is adapted to conduct between a pair of contacts on the fixed member side. 7. A switch unit provided on a fixed member side and a pair of contacts provided on a movable member side, one end of which is exposed in a key insertion hole and the other end thereof can contact a contact on a fixed member side. When the key is inserted into the key insertion hole, the contacts provided on both side edges of the key contact one end of the terminal, and the movable member is turned on with the rotation of the rotor. 4. The vehicle steering lock device according to claim 2 , wherein the other end of the terminal comes into contact with a contact on the fixed member side when the terminal is rotationally displaced to the position.