JPH075033Y2 - Steering lock with ignition switch for motorcycles - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a steering lock with an ignition switch for a motorcycle, which is characterized by being made compact by adopting a novel mechanism that has never been seen before. Is.

[Conventional technology and problems]

Conventionally, various types of steering locks with an ignition switch for motorcycles exist and are in practical use.

For example, the device of Japanese Utility Model Publication No. 54-36424 has the same function as that of the present invention, but the structure is such that a protruding member is provided in the lower part of the rotor, and a cam shaft is sequentially provided in series thereunder via a coil spring. Therefore, the dimension in the axial direction tends to be long.

However, for a steering lock with an ignition switch, various considerations have been made on how to shorten this dimension because the dimension from the head of the cylinder lock to the center of the lock bar affects the size of the steering lock. Has been added.

Recently, this demand has become stronger and stronger, and there is a competition for development whether to have the same function and to reduce the size.

[Means for solving problems]

The present invention was devised in view of the above situation, and a protruding member that has been conventionally provided between the cam driving the lock bar and the rotor (even if the key is rotated to the LOCK position as it is in the OFF state, It is designed to prevent the key from turning, so that it cannot be locked unless the key is pushed in the axial direction). Instead, the cam has an axial through hole to move the actuator up and down. As much as possible,
The movement of the actuator is made to correspond to the notch at the lower end of the cylinder body located at the upper part of the actuator by the holder having the inclined cam arranged on the lower surface of the cam, and the dimension from the head of the cylinder lock to the lock bar is adjusted. It is characterized by being made as short as possible.

That is, the present invention has a cylinder body (1) having a skirt portion (2) having a notch (3) at a lower end over a predetermined range, and a key (3) at an upper center of the cylinder body.
0) has a rotor (6) having a shaft (7) having an oval cross section at its lower end which is arranged to be rotatable and vertically movable, and the lock bar (2) is eccentrically rotated by the rotation of the rotor (6).
A cam (11) for driving the retractable 3) is provided on the upper surface, and a planar convex through hole (13) is provided at a position eccentric from the center of the cam (11), and an axis for driving the ignition switch is provided in the center of the lower surface. A driving body (10) provided with (14), and an upper half vertically movable in the through hole (13) so as to correspond to the notch (3) of the skirt portion and the lower end of the rotor. An actuator (15) having a convex portion in a plane shape and a notch (16) formed in one half of the upper surface to form a protrusion (17) in the other half and one end of which is formed in an arc shape (18). A rectangular frame-shaped slider (21) that reciprocates horizontally by driving the cam (11), and a lock that is connected to one side of the slider and has its tip protruding outward from the side of the body Vertical movement of the bar (23) and the actuator (15) arranged and fixed on the lower surface of the driving body (10) Tilt cams to regulate (26)
It is characterized by being constituted by a holder (25) having an upper surface.

More specifically, each member having the above-mentioned structure is provided with a relatively shallow notch (3) in the range of about 40 ° in the skirt portion (2) at the lower end of the cylinder body (1) as shown in FIG. There is.

The rotor (6) has a shaft (7) with an oval cross section at the lower end, and the oval shaft (7) has a deep slim hole (35) in the lower part. The shaped shaft (7) is fitted into an oval hole (12) with a bottom provided at the center of a drive body (10) described later to transmit rotation.

As shown in FIG. 4, the driving body (10) has a disc shape, and is provided with a flat rice ball-shaped cam (11) at an eccentric position on the upper part thereof.
A shaft (14) for driving the ignition switch (27) is provided at the center of the lower surface, and a convex through hole (13) is vertically provided outside the cam (11), and the shaft (14) of the driving body (10) is provided. A deep bottomed oval hole (12) is provided on the upper surface of the cam located at the center.

As shown in FIG. 5, the actuator (15) has a prismatic shape whose upper half portion is a plane convex shape. A notch (16) is provided in one half of the upper surface, and the remaining portion is formed into an L-shaped protruding portion (17). In addition, one side portion of the lower end is formed in an arc shape (18).

A deep hole (32) is provided on a side portion of the actuator, and a convex shape provided on the cam with the ball (20) loaded in the deep hole (32) through the spring (19). The spring (19) and the ball (20) are fitted in the through hole (13) so as to be vertically movable, and prevent the actuator (15) from rattling in the through hole (13).

As shown in Fig. 3, the slider (21) has a square window (2
It is a rectangular frame with 2), and a lock bar (23) is fixed to one side of the square frame (22), and the rice-ball-shaped cam (11) is fitted into the square window (22). The slider (21) slides back and forth due to eccentric rotation.
As shown in the figure, a lock bar (23) is projected and retracted in a lock hole (31) provided in a steering shaft (33) of a vehicle to lock a steering wheel, and these structures are conventionally known.

As shown in FIG. 6, the holder (25) is a disc-shaped one having a half-trapezoidal inclined cam (26) at a position corresponding to the rotation trajectory of the actuator (15) on the upper surface, and the outer peripheral upper surface is the cylinder. It is fixed to the large diameter portion (4) at the lower end of the body, while the lower surface of the outer periphery is fixed to the upper surface of the case (28) of the ignition switch (27).

In addition, in the central portion of the holder (25), the driving body (10) is provided.
A shaft (14) on the lower surface is provided in a penetrating manner, and has a function of operating an ignition switch (27) provided in the lower half portion by the rotation of the shaft.

The above members are assembled as follows.

1) Insert the lock bar (23) into the bar hole (5) of the cylinder body (1) and slide the slider (21) from below the body.
Fit in.

2) Drive in which the actuator (15) with the spring (19) and the ball (20) loaded in the side deep hole (32) is fitted into the convex through hole (13) of the cam (11). The cam (11) of the body (10)
Is mounted from below so as to fit into the square window (22) of the slider (21).

3) Hold the holder (2) on the shaft (14) at the center of the lower surface of the driver (10).
The holder (25) and the large diameter portion (4) of the lower end of the cylinder body (1) are fixed by passing through the central hole (34) of (5).

4) After the compression coil spring (9) is sunk from the opening in the upper center of the cylinder body (1) into the oval hole (12) with a bottom in the center of the driving body (10), the oval shape under the rotor (6) The shaft (7) is assembled by being pushed into the oval hole (12) and fixed so that the rotor (6) does not pop out.

5) The positional relationship among the actuator (15), the notch (3) of the rotor, and the tilt cam (26) of the holder at the time of assembling as described above is such that the actuator (15) has the tilt cam (26) as shown in FIG. And is in a state in which the L-shaped protrusion (17) of the actuator is fitted into the notch (3).

6) Further, the relationship between the cam (11) and the slider (21) in the state shown in FIG. 10 is that the ignition switch is OFF, as shown in FIG.

7) Next, after the rotating body of the ignition switch (27) which has been assembled in advance and the shaft (14) of the driving body are coupled, the switch case (28) is fixed to the lower portion of the holder (25).

[Action]

 The operation of the present invention will be described below.

In the switch OFF state of FIG. 7, the relationship between the actuator (15), the notch (3) in the skirt of the cylinder body, and the inclined cam (26) of the holder is in the positional relationship shown by the solid line in FIG. When the oval shaft (7) under the rotor is rotated left (counterclockwise) by the key (30), it becomes LOCK, and when it is rotated right (clockwise), it becomes ON.

That is, the actuator (15) is located at the upper side, and its protrusion (17)
Is in a state of being fitted in the notch (3) of the skirt.

In the OFF state of FIGS. 7 and 10, lock the key (30).
Even if it is rotated in the direction (that is, leftward in the figure), the protrusion (17) of the actuator comes into contact with the shoulder of the notch (3) and does not rotate. In order to rotate in the LOCK direction in this state, the rotor (6) is pushed down by the key to disengage the engagement between the actuator (15) and the notch (3) as shown by a chain line, and then the rotor is rotated as shown in FIG. 10th
It rotates as shown by the chain double-dashed line in the figure.

From the OFF state in FIG. 10 to the ON state in FIG. 8 (that is,
Rotation in the right direction in the figure only causes the protrusion (17) of the actuator to move within the notch (3) as shown by the alternate long and short dash line in FIG.

Further, when the LOCK to the ON state (that is, the right direction in the figure) of the two-dot chain line in FIG. 10 is turned, the engagement between the actuator (15) and the notch (3) is released, and thus the actuator is disengaged. (15) is in a rotatable state, and it can be done smoothly from LOCK to the OFF position indicated by the solid line. At the OFF position on the way, the actuator moves the slope of the inclined cam (26) so that the arc portion (18) at the lower end of the actuator is You can go up, but you can still turn the key, so the chain line is ON
Rotation to the position can be done smoothly.

It is needless to say that the lock bar (23) is projected or retracted via the slider by the operation of the cam (11) in the same manner as the conventional product in accordance with these rotations.

[Effect of device]

As described above, the present invention is a mechanism in which the rotation from OFF to LOCK must be performed after the rotor is pushed down once.
Since the actuator was embedded in the cam surface of the driving body that drives the slider equipped with the lock bar so that it could slide up and down, the size from the rotor head to the lock bar was shortened, resulting in a compact steering lock. .

And the shortening rate was 32% compared to our company, and the actual size could be suppressed to 37.5mm, which made the layout around the ignition switch advantageous.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a longitudinal sectional view of the present invention, FIGS. 2 to 6 are exploded perspective views of the present invention, and FIG. 7 is a cam and slider in an OFF position. Sectional view of the eighth
The figure shows the cross section of the cam and slider in the ON position.
Cross section of cam and slider in LOCK position, O in Figure 10
Explanatory explanatory drawing which shows the state of the operator in each position of N, OFF, and LOCK, omitting a cam. 1 …… Cylinder body 2 …… Skirt part 3 …… Notch 6 …… Rotor 7 …… Oval shaft 10 …… Drive body 11 …… Cam 13 …… Through hole 14 …… Axis 15 …… Operator 16… … Incision 21 …… Slider 23 …… Lock bar 25 …… Holder 26 …… Inclined cam 31 …… Lock hole 32 …… Deep hole 33 …… Steering shaft 34 …… Center hole 35 …… Slot hole

Claims (1)

[Scope of utility model registration request] 1. A cylinder body (1) having a skirt portion (2) provided with a notch (3) at a lower end over a predetermined range.
A rotor (6) having a shaft (7) with an oval cross section at the lower end, which is arranged so as to be pivotable and vertically movable by a key (30) at the upper center of the cylinder body, and the rotor (6) A cam (11) for eccentrically rotating by rotation to drive the lock bar (23) to be retractable is provided on the upper surface, and a planar convex through hole (13) is provided at a position eccentric from the center of the cam (11). Inside the through hole (13), a driver (10) having a shaft (14) for driving an ignition switch is formed in the center of the lower surface, and the notch (3) of the skirt and the lower end of the rotor are arranged so as to straddle each other. The upper half of which is vertically movable is convex on a plane, and a notch (16) is formed in one half of the upper surface to form a protrusion (17) in the other half, and one end of the lower end is arcuate (18). ) And the cam (11) are driven to reciprocate horizontally. A rectangular frame-shaped slider (21), a lock bar (23) that is connected to one side of the slider and has its tip protruding outward from the side of the body, and a bottom surface of the drive body (10). A steering lock with an ignition switch for a motorcycle, comprising a holder (25) having an inclined cam (26) for restricting the vertical movement of the operator (15) which is arranged and fixed on the upper surface.