JPH10266663A - Ignition switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a loss in stroke of a steering lock bar, and to reduce the number of components while minimizing the external shape. SOLUTION: An ignition switch is provided with a turn-off position, a turn-on position which is connected with a battery circuit at a turn-off position located at one turning direction, a steering lock position in which a steering unit is locked which is located in the other turning direction of the turn-off position and a lock open position which opens an external lock between the turn-off position and the steering lock position. The locking motion of the steering unit and the unlocking motion of the external lock are carried out, independent from each other, by a pair of protrusions 10, 11 formed on a cam 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ignition switch used to enable starting of an engine in a vehicle such as a two-wheeled vehicle, and more particularly to an external lock mechanism such as a seat lock mechanism in addition to the switch mechanism. And an ignition switch having the same.

[0002]

2. Description of the Related Art Generally, vehicles such as two-wheeled vehicles and four-wheeled vehicles are provided with an ignition switch for enabling an engine to be started. In order to improve operability, the ignition switch may be, for example, a switch having a steering lock mechanism, a steering lock mechanism and a helmet lock mechanism, or a steering lock mechanism and a seat lock. There are known ones to which a mechanism is added.

In an ignition switch in which a steering lock mechanism and a seat lock mechanism are added to this switch mechanism, an ON position is provided in a right rotation direction of an OFF position, a steering lock position is provided in a left rotation direction, and a right side of an ON position is provided. A seat lock open position is provided in the rotation direction, and the seat lock is released by rotating the key rightward from the ON position by a predetermined angle.

However, in the ignition switch, since various mechanisms are added to the ignition switch, the operation may be complicated and the user may forget to remove the key. After turning to the open position and releasing the seat lock, the user forgets to remove the key, and the battery circuit remains connected, so that the battery easily runs out.

The applicant has proposed an ignition switch as shown in FIG. 6 (Japanese Patent Application No. 7-117032) in order to prevent such a battery drain. The ignition switch 101 is provided with a lock 104, an actuator 105, and a cam 106 as separate components on the lower surface side of the rotor 103 in the cylinder body 102.
Are arranged.

The cam 106 supports an actuator 105 at its upper end via a compression coil spring 107 fitted in the fitting projection 106a.
A lock 104 is provided on the upper part of the cam, and the cam 106, the actuator 105, and the lock 104 are integrally assembled. The lock 104 is always urged in a predetermined direction (from the seat lock open position to the off position) by a torsion coil spring 109 interposed between the outer peripheral portion and the cylinder body 102.

When the key is inserted into the key hole of the rotor 103 and rotated leftward from the off position, the lock 104 rotates, and the lever 110 to which the seat lock wire is connected moves to release the seat lock. You. Further, by rotating the rotor 103 leftward while pushing it with the key from the off position, the rotor 103 and the cam 106 rotate, and the steering lock bar 111 projects outside the cylinder body 102 by a predetermined length to lock the steering. You.

[0008]

In the ignition switch 101, however, the steering lock bar 111 is moved forward and backward by rotating the cam 106, and the lever 110 is moved by rotating the cam 106 and the actuator 105. Since the rotation is performed by rotating the rotor 104 up and down, the steering lock bar 111 always engaged with the cam 106 also moves during the seat lock opening operation (movement of the lever 110), and the stroke loss of the steering lock bar 111 is lost. There is a problem that occurs.

A mechanism for performing a steering lock operation and a seat lock open operation includes a cam 106,
Since it is composed of separate parts consisting of the actuator 105 and the rotor 104, the number of parts is increased and the cost is likely to be increased. Further, since a plurality of parts are stacked, the outer shape of the ignition switch becomes larger. There was a problem of doing.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide an ignition switch capable of eliminating a stroke loss of a steering lock bar, reducing the number of parts, and further reducing the outer shape. Is to do.

[0011]

In order to achieve the above object, according to the first aspect of the present invention, there is provided an off position, an on position provided in one rotational direction of the off position to which a battery circuit is connected, and an off position. In an ignition switch provided with a steering lock position for locking the steering provided in the other rotation direction of the position and a lock open position for opening the external lock between the off position and the steering lock position, the steering lock operation and the external The lock opening operation can be performed independently by the movement of one cam.

Further, according to a second aspect of the present invention, a steering provided in an off position, an on position provided in one rotational direction of the off position to which a battery circuit is connected, and a steering provided in the other rotational direction of the off position is provided. In an ignition switch provided with a steering lock position for locking and a lock open position for opening an external lock between an off position and a steering lock position, a steering lock operation and an external lock open operation are performed by moving a steering lock bar forward and backward. The projections to be opened and the projections to open the external lock can be independently performed by the movement of one cam provided at different places.

The invention described in claim 3 is characterized in that the member operated by the cam is switched by a pressing operation of the rotor.

With this configuration, for example, when the key is rotated from the off position to the left (toward the lock position), which is the direction of the seat lock open position, without pressing the key, the one protrusion of the cam is rotated. The seat lock is released. Further, when the rotor is depressed by a key and rotated leftward from the off position, the steering is locked by the rotation of the other protruding portion of the cam.

That is, a pair of protrusions provided on one cam move independently of each other in response to the pressing operation of the rotor,
One cam performs two operations, a seat lock open operation and a steering lock operation. As a result, the stroke loss of the steering lock bar is eliminated, the number of parts is reduced, and the outer shape of the ignition switch is reduced in size.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 5 show an embodiment of an ignition switch according to the present invention. FIG. 1 is a sectional view thereof, FIG. 2 is a view taken along line AA of FIG. 1, and FIG. 3 is BB of FIG. FIG. 4 is an exploded perspective view of a main part, and FIG. 5 is a sectional view similar to FIG. 1 in a state where a key is pushed.

1 to 4, an ignition switch 1 has a cylinder body 2 whose upper end and lower end are open, and a substantially cylindrical rotor 3 is rotated in an upper end of the cylinder body 2. It is arranged as possible. The rotor 3 has a key hole 5 (see FIG. 4) into which a key 4 is inserted from an upper surface thereof along a central axis. A pair of protrusions 7 are formed at diagonal positions on the outer peripheral surface.

A cam 8 is provided on the lower surface side of the rotor 3 in the cylinder body 2. As shown in FIG. 4, the cam 8 has a disk portion 9 and a pair of protrusions 10 and 11 provided below the disk portion 9. A fitting projection 12 that fits with the fitting recess 6 is protruded.

The protruding portion 10 above the cam 8 has its base end integrated with the rotating shaft 8a of the cam 8 provided coaxially with the fitting projection 12 and its distal end formed on the outer peripheral surface of the disk portion 9. The lower part is integrated via a cam shaft 13. Also, cam 8
The protruding portion 11 below the cam shaft 8 has a base end on the rotating shaft 8 of the cam 8.
a, which is formed on an arc-shaped surface 11a at the tip end thereof and protrudes in the same direction as the protruding portion 10 by a predetermined length. An engagement groove 11b is formed on the tip of one side surface of the protrusion 11. A gap 14 is formed between the upper surface of the protrusion 11 and the lower surface of the protrusion 10.
In the state shown in FIG. 1 in which the key 4 is not pushed into the lock bar 4, the lock bar slider 16 is engaged.

A compression coil spring 17 for elastically supporting the rotor 3 and the cam 8 is fitted between the fitting projection 12 of the cam 8 and the lower part of the rotor 3. Also,
A spring locking plate 19 for locking the compression coil spring 18 is fitted on the outer peripheral surface of the rotating shaft 8a below the protruding portion 11 of the cam 8, and a lower end of the rotating shaft 8a of the cam 8 is An engagement portion 20 that can be engaged with a contact board 48 described later is formed.

The lock bar slider 16 is formed of a steel plate having a predetermined thickness, and a locking recess 22 for locking a lock bar 21 (steering lock bar) is formed at the front end thereof, and at the rear end thereof. A long hole 23 is formed.
The elongated hole 23 is formed slightly larger than the outer shape of the projections 10 and 11 so that the projections 10 and 11 of the cam 8 can pass therethrough.
It is formed so that a can be located.

The lock bar 21 is formed of a prismatic member having a square cross section. A locking portion 21a is provided at the rear end of the lock bar 21. The locking portion 21a It is locked by being inserted from the direction (the direction of arrow A in FIG. 4). This lock bar 21 has a square hole 24
(See FIG. 1).

A seat lock opener slider 26 is engaged with the projecting portion 11 of the cam 8. The seat lock opener slider 26 is formed by, for example, resin molding, and has a slider main body 27 and a protruding piece 28 provided on one side surface of the slider main body 27 as shown in FIGS. I have. On the side of the slider body 27 on the side opposite to the projecting piece 28, an elongated hole 29 is formed, which is partially open. The seat lock inserted into the outer cable 30 is inserted into the elongated hole 29 as shown in FIG. A locking ring 32 at the end of the wire 31 is locked.

The projecting piece 28 of the seat lock opener slider 26 has an arcuate surface 28a corresponding to the arcuate surface 11a of the protrusion 11 of the cam 8 on the side surface of the seat lock wire 31 on the pulling direction side. A protrusion 28b for locking one end of the compression coil spring 33 is formed on the side surface in the anti-pulling direction side. The other end of the compression coil spring 33 is engaged with the base 35, and the compression coil spring 33 causes the cam 8 to move from the sealock open position to the off position via the seat lock opener slider 26 and the protrusion 11 of the cam 8. Always energized.

The base 35 has an upper base 36 and a lower base 37 formed by resin molding. As shown in FIG. 4, the upper base 36 has a fan-shaped hole 38 formed in the center thereof. A guide groove 39 for guiding a part of the lock bar 21 in a state communicating with the hole 38 is formed. The lower base 3 is located on the back (lower) side of the upper base 36.
A groove 40 for accommodating the compression coil spring 33 and a sliding portion 41 on which the seat lock opener slider 26 slides are formed between the upper portion 7 and the upper surface.

On the other hand, the lower base 37 has a concave portion 42 formed on the upper surface thereof, and the compression coil spring is located below the hole 42a of the bottom wall of the concave portion 42 and the spring locking plate 19 located in the concave portion 42. 18 are fitted. The cam 8 is elastically supported on the contact board 48 by the compression coil spring 18.

The upper base 36 and the lower base 37
The projection 43 provided on the back surface of the upper base 36 is
7 and are integrated by being engaged with the groove 44. Further, a pair of tongue-shaped elastic pieces 45 are provided at diagonal positions on the outer peripheral surface of the lower base 37, and the elastic pieces 45 are fitted into holes 46 of the cylinder body 2, whereby the base 35 is moved to the cylinder body 2. 2 are integrated.

A contact panel 48 is provided below the base 35. The contact board 48 has a movable contact rotor 49 as shown in FIG.
A movable contact 50 elastically supported by a coil spring 52 is provided on the lower surface of 9, and a fixed contact 51 is provided corresponding to the movable contact 50. The movable contact rotor 49 has an engagement portion 20 of the rotating shaft 8a of the cam 8 engaged with a hole 53 provided at a center position thereof, and rotates following the rotation of the rotating shaft 8a.

The hole 53 of the movable contact rotor 49 is set so that its depth can correspond to the vertical movement of the cam 8. The movable contact rotor 49 has a ball 55 elastically supported by a coil spring 54 provided on the upper surface thereof.
Are selectively fitted into the plurality of recesses 37 a on the back surface of the lower base 37, so that the movable contact 50 and the fixed contact 51
Is configured to be able to change the positional relationship.

A ring 56 is provided on the outer peripheral surface of the upper end of the cylinder body 2 and, for example, "ON", "OFF", "OPEN", "PUSH", "L"
Each character of "OK" and an arrow are displayed.

Next, the operation of the ignition switch 1 will be described. First, in the normal off position where the key 4 is not pushed, the lock bar slider 16 and the seat lock opener slider 26 are at the positions shown in FIGS. That is, the lock bar slider 16
1, the position of the cam 8 is within the gap 14 of the cam 8 as shown in FIG. 1, and the rotation shaft 8a of the cam 8 is located at the center of one end 23a of the elongated hole 23. The seat lock opener slider 26 is located on the pulling direction side as shown in FIG.
1b is locked to the side end of the protruding piece 28 on the pulling direction side.

When the key 4 is turned from the off position to the left, which is the locking direction, without being pushed, the rotor 3
3, the protrusion 11 of the cam 8 rotates in the direction indicated by the arrow D in FIG. 3, and the arc surface 11a at the tip of the protrusion 11 becomes the arc surface 28 of the projection 28 of the seat lock opener slider 26.
Press a. As a result, the seat lock opener slider 26 slides in the direction of arrow E while opposing the urging force of the compression coil spring 33 along the sliding portion 41 of the base 35, and engages with the long hole 29 of the seat lock opener slider 26. The stopped seat lock wire 31 is pulled, and the seat lock is released.

At this time, since the rotation shaft 8a of the cam 8 is located at one end 23a of the long hole 23 of the lock bar slider 16, the rotation shaft 8a is merely located within the one end 23a and rotates. The lock bar slider 16 does not move due to the rotation of the cam 8, and the lock bar 21 does not move.
Also does not protrude.

It should be noted that the cam 8 is not pushed without pushing the key 54.
Turn in the lock direction to open the seat lock,
When the key 4 is released, the seat lock opener slider 26 automatically returns to the original position by the urging force of the compression coil spring 33. That is, the seat lock open operation is performed simply by turning the key 4 from the off position to the open position by a predetermined angle.

On the other hand, if the rotor 3 is pushed downward by pressing the key 4 from the off position, the positional relationship between the lock bar slider 16 and the cam 8 is as shown in FIG. That is, the seat lock opener slider 26 is positioned within the gap 14 of the cam 8 to release the engagement with the protruding portion 10, and the lock bar slider 16 has its long hole 23 formed at the tip of the protruding portion 10 of the cam 8. Is engaged with the cam shaft 13.

In this state, when the key 4 is turned to the left, which is the locking direction, the cam shaft 13 of the cam 8 is rotated via the rotor 3 as shown by the arrow B in FIG. , The lock bar slider 16 moves in the direction of arrow C. As a result, the lock bar 21 projects outside the square hole 24 of the cylinder body 2 by a predetermined length, and the steering is locked. At this time, the seat lock opener slider 26
Since the cam 8 is located in the Z gap 14 between the protruding portions 10 and 11, the protruding portion 11 merely rotates on the lower surface side of the seat lock opener slider 26, and does not act on the protruding piece 28 at all. The position does not change (move).

When the key 4 is turned clockwise from the off position to the on direction, the rotation of the cam 8 due to the rotation of the rotor 3 causes the movable portion to engage with the engaging portion 20 and the hole 53 engaged with each other. The rotor 49 rotates, and the movable contact 50 and the fixed contact 51 are appropriately connected. As a result, the switch mechanism of the ignition switch 1 is turned on, and a battery circuit (not shown) is connected. When the switch mechanism is switched, the ball 55 of the contact board 48 is fitted into the concave portion 37a of the lower base 37, so that a sense of switching is transmitted to the fingertip of the operator.

As described above, according to the ignition switch 1 of the above embodiment, the pair of protrusions 10 and 11 are provided at different positions on the upper and lower sides of the cam 8, and the upper protrusion 10 is engaged with the lock bar slider 16. Since the lower protruding portion 11 is engaged with the seat lock opener slider 26, the two sliders 16 and 26 can be operated independently by the turning operation of one cam 8. As a result, the rotational power of the cam 8 is not transmitted to the lock berth slider 16 during the seat lock open operation, and the stroke of the lock bar 21 is eliminated.

Further, since the cam 8 can be formed by one part, the cam 106 and the actuator 10 can be formed in a conventional manner.
5. It is not necessary to use a plurality of parts such as the lock 104, so that the number of parts can be reduced. In addition, compared with a conventional product in which the plurality of parts are stacked and used,
The outer shape of the ignition switch can be reduced in size.

Furthermore, since the base 35 can be assembled to the cylinder body 2 only by fitting the elastic piece 45 of the base 35 into the hole 46 of the cylinder body 2, the operation of assembling the ignition switch 1 can be easily performed. As a result, the cost of parts and the cost of manufacturing are greatly reduced, and the cost of the ignition switch 1 can be reduced.

Further, the use of the compression coil spring 33 as the restoring spring of the cam 8 simplifies the assembling work as compared with the conventional torsion coil spring 109, and makes it possible to further improve the assemblability of the ignition switch. Become.

In the above embodiment, an example in which a steering lock mechanism and a seat lock mechanism are added to the ignition switch 1, that is, a case where the external lock mechanism is a seat lock mechanism, has been described. However, the present invention is not limited to this. However, the present invention can also be applied to a case where the external lock mechanism is a helmet lock mechanism or the like.

The shapes, dimensions and positional relationships of the protrusions 10 and 11 of the cam 8 in the above embodiment, the shapes of the lock bar slider 16 and the seat lock opener slider 26, and the shape of the base 35 are also examples. It goes without saying that various changes can be made without departing from the spirit of the invention.

[0044]

As described in detail above, according to the present invention,
By providing a projection for operating the steering lock bar and a projection for opening the external lock on the cam, two operations can be performed independently with one cam, and the stroke loss of the steering lock bar can be eliminated. As well as reducing the number of parts,
In addition, the outer shape of the ignition switch can be reduced in size.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an ignition switch according to the present invention.

FIG. 2 is a view taken on line AA of FIG. 1;

FIG. 3 is a view taken on line BB of FIG. 1;

FIG. 4 is an exploded perspective view of the main part.

FIG. 5 is a sectional view similar to FIG. 1 with the key pushed.

FIG. 6 is a sectional view of a conventional ignition switch.

[Explanation of symbols]

1 ... Ignition switch 2 ... Cylinder body 3 ... Rotor 5 ... Key Hole 8... Cam 8a... Rotating shaft 9 Disk part 10, 11... Projecting part 11a ... Arc surface 13 ... Cam shaft 14 ... Gap 16 ... Lock bar slider 17,18 33 Compression coil spring 21 Lock bar 26 Seat opener slider 27 Slider body 28 ... Projection part 35 ... Base 36 ... Upper base 37 ... Lower base 41 ... ...... sliding portion 48 ......... contact point board 49 ......... movable contact rotor

Claims (3)

[Claims] 1. An off position, an on position provided in one rotation direction of the off position to which a battery circuit is connected, a steering lock position provided in the other rotation direction of the off position to lock a steering, An ignition switch provided with a lock open position for opening an external lock between the off position and the steering lock position, wherein the steering lock operation and the external lock open operation are independently performed by one cam movement. An ignition switch characterized in that the ignition switch can be operated by using the ignition switch. 2. An off position, an on position provided in one rotation direction of the off position to which a battery circuit is connected, a steering lock position provided in the other rotation direction of the off position to lock a steering, An ignition switch provided with a lock open position for opening an external lock between the off position and the steering lock position, wherein the locking operation of the steering and the opening operation of the external lock are performed by a projecting portion that moves a steering lock bar forward and backward. An ignition switch characterized in that the projections for opening the external lock can be independently operated by the movement of one cam provided at a different location. 3. An ignition switch according to claim 1, wherein a member operated by said cam is switched by a pressing operation of a rotor.