JPH0546621U - Vehicle steering lock device - Google Patents

Abstract

(57) [Abstract] [Purpose] The weight of the cylinder lock rotor itself is reduced to reduce the weight of the steering lock device as a whole. [Structure] A cylinder lock rotor is composed of a first rotor 7 made of metal and a second rotor 9 made of resin, which accommodate a plurality of lock tumblers. A pair of fitting grooves are formed in the rear portion of the first rotor 7, and a U-shaped engaging groove is formed in the second rotor 9. Then, the second rotor 9 is press-fitted from the side of the first rotor 7 and integrally coupled in the rotational direction and the axial direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle steering lock device that integrally incorporates a lock mechanism that locks a steering shaft of an automobile handle and a switch mechanism that controls an ignition circuit, a starter circuit, and the like.

[0002]

[Prior Art]

 In recent years, as the weight of automobiles has been reduced, it has been demanded to reduce the weight of parts to be mounted. Therefore, the present inventors focused their attention on a steering lock device that locks the steering shaft of the automobile handle in a non-rotatable manner by interlocking with the operation of a key for engine start, and attempted to reduce its weight and improve the operation feeling. .. By the way, as a steering lock device mounted on an automatic vehicle, there is known a steering lock device configured so that the cylinder lock rotor can be rotated from the ACC position to the LOCK position only when the shift lever is in the parking position. ing. With this configuration, the shift lever always exists in the parking position when the vehicle is away from the vehicle, so that it is possible to prevent self-propelled driving when parking on a slope. In this case, as a means for preventing the rotor from rotating to the LOCK position when the shift lever is located at a position other than the parking position, usually, a solenoid is driven and a locking member that interlocks with the solenoid is engaged with the rotor. The method is adopted.

[0003]

[Problems to be solved by the device]

 However, when the locking member and the solenoid are assembled to the steering lock device as described above, the weight of the steering lock device inevitably increases, which becomes a factor to prevent the weight reduction of the steering lock device. The present invention has been made in view of such circumstances, and divides the cylinder lock rotor into a cylinder lock part in which a plurality of lock tumblers are incorporated and a locking part for locking the locking member. The purpose of the present invention is to reduce the weight of the cylinder lock rotor itself by making the locking portion of the rotor resin so as to reduce the weight of the steering lock device as a whole.

[0004]

[Means for Solving the Problems]

 Therefore, in the present invention, in the steering lock device for a vehicle, the locking member engages with the rotor at the time of turning from the ON position or the OFF position to the LOCK position to prevent the turning of the rotor to the LOCK position. The rotor is composed of a metal first rotor having a key insertion hole, and a resin second rotor that is integrally incorporated in the first rotor in the rotational direction and the axial direction, The locking member is adapted to engage with the second rotor.

[0005]

【Example】

 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 a disassembled perspective view thereof, FIG. 3 is an exploded perspective view of a rotation preventing mechanism, and FIG. 4 is a sectional view taken along line AA of FIG. FIG. 5 is an electric control circuit diagram, FIG. 6 is an explanatory view showing the engagement state of the second rotor and the locking piece, and FIG. 7 is a front view showing the positional relationship of each position.

As shown in FIGS. 1 and 2, the steering lock device S is attached to a steering column around a steering shaft via an attachment portion 1. An ignition switch 4 is provided at a rear end of a body 3 made of a hard resin material of the steering lock device S, and a cylinder for operating the ignition switch 4 by operating a key 5 is provided inside. A lock 6 is housed.

The cylinder lock 6 has a key insertion hole 7 a, and is made of a metal first rotor 7 for housing a plurality of lock tumblers, an outer 8 for housing the first rotor 7, and the first rotor 7. The second rotor 9 is made of resin and is attached to the rear portion of the first rotor 7, and the joint 10 that is engaged with the rear side of the first rotor 7 is a square hole. The joint 10 is engaged with the ignition switch 4 in a square hole. When the key 5 is operated to rotate the first rotor 7, the ignition switch 4 can be operated via the joint 10. it can. Here, a pair of fitting grooves 7b and 7c are formed in the rear portion of the first rotor 7, and a U-shaped engaging groove 9a is formed in the second rotor 9. As a result, the second rotor 9 is press-fitted from the side of the first rotor 7 and integrally connected in the rotational direction and the axial direction. A coil spring 11 is interposed between the first rotor 7 and the joint 10 to bias the first rotor 7 forward. As shown in FIGS. 1, 2 and 6, the second rotor 9 is formed with a front first engaging protrusion 9b and a rear second engaging protrusion 9c in the axial direction thereof. ing. Further, the body 3 is provided therein with a recess 12 into which the second engagement protrusion 9c can be inserted only at the ACC position. Therefore, the first rotor 7 integrated with the second rotor 9 can be pushed only in the ACC position. Further, the outer 8 is provided with an engaging projection 13 at a rear portion thereof, and the engaging projection 13 is formed with a tapered surface 13a and an engaging surface 13b continuously. As a result, when the first rotor 7 integrated with the first rotor 9 is rotated from the LOCK position to the ACC position, the first engagement protrusion 9b and the tapered surface 13a cooperate with each other to make the first rotor 7 rotate. When the rotor 7 is displaced rearward and is rotated from the ACC position to the LOCK position, the first engagement protrusion 9b engages with the engagement surface 13b to prevent the rotation. There is. The second engaging projection 9c of the second rotor 9 engages with an engaging portion 28a of a locking piece 28, which will be described later, to prevent rotation of the first rotor 7 to the LOCK position in an emergency. Used to do. As described above, the cylinder lock rotor is composed of the first rotor 7 and the second rotor 9, and the first rotor 7 requiring the lock strength is formed of metal, and the locking piece 28 is engaged. Since the second rotor 9 is made of resin, the weight of the cylinder lock rotor itself can be reduced, and as a result, the weight of the steering lock device S as a whole can be reduced.

As shown in FIGS. 1 and 4, a lock mechanism 14 is housed in the rear portion of the body 3 at right angles to the cylinder lock 6. The lock mechanism 14 is engaged with a lock pin 15 which is engaged with and disengaged from the steering shaft, and a semi-circular cam 16 formed on the joint 10 so that the lock pin 15 can be moved to the left or right by operating the key 5. It is composed of a slider 17 that slides. Here, a cutout groove 17a is formed in the lower surface of the slider 17, and the lock pin 15 is brought to an unlocked position by engaging a rear end 18b of an engagement piece 18 described later with the cutout groove 17a. Being able to hold. The slider 17 is constantly urged by a spring 19 in the direction in which the lock pin 15 is projected (rightward in FIG. 4). As shown in FIG. 1, a lock blocking mechanism 20 is provided on the body 3 at a side of the cylinder lock 6. The lock prevention mechanism 20 includes a resin unit case 21, an engagement piece 18 pivotally supported by the unit case 21 via a shaft 22, and a front end 18a of the engagement piece 18. The lock prevention mechanism 20 is composed of a spring 23 which urges the first rotor 7 side and is unitized. The lock prevention mechanism 20 which is unitized is formed in a groove (not shown) formed on the outer periphery of the outer 8. It is fitted. A key slider 24 is housed in the front end portion of the first rotor 7, and the key slider 24 is moved in the radial direction according to the insertion and removal of the key 5. Here, the engagement piece 18 is biased by the spring 23 in a direction in which the front end 18a thereof engages with the key slider 24. Therefore, when the key 5 is inserted into the first rotor 7 at the LOCK position (FIG. 7), the key slider 24 moves radially outward, which causes the engagement piece 18 to swing and the rear end 18b thereof to move to the above-mentioned position. It contacts the lower surface of the slider 17. When the first rotor 7 is rotated to the ACC position (FIG. 7) in this state, the joint 10 is also rotated, and the semicircular cam 16 formed on the joint 10 moves the slider 17 to the left in FIG. Since it slides, the rear end 18b of the engagement piece 18 is engaged with the notch groove 17a formed in the lower surface of the slider 17 and the lock pin 15 can be held at the unlock position (FIG. 4).

As shown in FIGS. 1 to 3, the body 3 is provided with a rotation blocking mechanism 25 located on the opposite side of the lock blocking mechanism 20. The rotation preventing mechanism 25 includes a frame 26 for accommodating a solenoid actuator, a plate-like metal locking piece 28 provided below the frame 26 and driven by a plunger 27 of the solenoid actuator, and the locking member 28. It is formed as a unit by being constituted by a spring 29 which biases the piece 28 in a direction opposite to the pulling direction of the plunger 27. When the frame 26 is fixed to the body 3, the locking piece 28 is disposed in a recess 30 formed in the body 3 so as to be slidable in the axial direction of the first rotor 7. .. Further, a cutout window 30a communicating with the recess 12 inside the body 3 is formed in front of the recess 30, and the locking portion 28a of the locking piece 28 is recessed through the cutout window 30a. It is made possible to project into the place 12. The unitary rotation preventing mechanism 25 is covered with a unit cover 31 so that dust or the like does not enter the rotation preventing mechanism 25. Further, the frame 26 is provided with a coupler section 32 for supplying power, and a coupler 34 at the tip of a lead wire 33 connected to a vehicle side control circuit is connected to the coupler section 32. .. As shown in FIGS. 1 and 2, the steering lock device S is provided with an electric component unit 36 in which a key insertion detection switch, a keyhole lighting device, and the like are incorporated in the front part of the key insertion portion. The electrical unit 36 is connected to a vehicle side control circuit via a lead wire 37. Further, as shown in FIG. 5, a push-in detection switch 35 of the rotor is provided in the electric unit 36, one contact of the push-in detection switch 35 is connected to a solenoid 37 in the solenoid actuator, and the other is connected. Is connected to the shift lever switch 39. Here, the shift lever switch 39 is configured to open the electric circuit when the shift lever is in the P (parking) position and close the electric circuit when the shift lever is in a position other than the P position. For this reason, when the key 5 is pushed in at the ACC position when the shift lever is in a position other than the parking position, the push-in detection switch 35 is turned on to form an electrically closed circuit. The push-in detection switch 35 is turned on before the engagement between the first engagement protrusion 9b formed on the second rotor 9 and the engagement protrusion 13 formed on the outer 8 is released. Has been done. When the electrical closed circuit is constructed in this manner, the solenoid 37 is excited and the plunger 27 is attracted, and the locking portion 28a of the locking piece 28 enters the recess 12 to cause the second rotor to rotate. Since it engages with the second engagement protrusion 9c formed in 9, the rotation of the first rotor 7 to the LOCK position is prevented (see FIG. 6). In this case, if the shift lever is once positioned at the P (parking) position and then the second rotor 7 is pushed in again, the locking portion 28a of the locking piece 28 will move to the second engaging projection 9c. Since the first engagement projection 9b and the engagement surface 13b are disengaged without engaging with each other, the first rotor 7 can be rotated to the LOCK position. Thus, when the shift lever is in a position other than the P (parking) position, the metal locking piece 28 is engaged with the second rotor 9 made of resin, so that the first rotor 7 is locked at the LOCK position. Since the rotation of the locking piece 28 is prevented, the engagement piece 28 can be smoothly engaged and disengaged.

[0010]

[Effect of the device]

 As described above, in the present invention, the vehicle steering lock device in which the locking member engages with the rotor during rotation from the ON position or the OFF position to the LOCK position to prevent the rotor from rotating to the LOCK position. The first rotor made of metal having a key insertion hole and the second rotor made of resin integrally incorporated in the first rotor in the rotation direction and the axial direction. By engaging the stop member with the second rotor, the weight of the cylinder lock rotor itself can be reduced, and the weight of the steering lock device as a whole can be reduced. effective. The locking member is made of metal because it requires strength. By engaging this metal locking member with the second resin rotor, the rotor is rotated to the LOCK position. Since it is designed to be blocked, there is an excellent effect that the engaging member can be smoothly engaged and disengaged.

[Brief description of drawings]

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

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

FIG. 3 is an exploded perspective view of a rotation blocking mechanism.

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

FIG. 5 is an electric control circuit diagram.

FIG. 6 is an explanatory diagram showing an engaged state of a second rotor and a locking piece.

FIG. 7 is a front view showing a positional relationship between respective positions.

[Explanation of symbols]

 S Steering lock device 7 First rotor 9 Second rotor 9c Second engagement protrusion 28 Engagement piece 28a Engagement portion 35 Push-in detection switch 37 Solenoid 39 Shift lever switch

Claims (1)

[Scope of utility model registration request] 1. LOCK from ON position or OFF position
In a steering lock device for a vehicle in which a locking member engages with a rotor when rotating to a position to prevent the rotor from rotating to a LOCK position, the rotor is made of a metal first member having a key insertion hole. No. 1 rotor and a second resin-made second rotor integrally incorporated in the first rotor in the rotational direction and the axial direction.
And a locking member for engaging the locking member with the second rotor.