JP3330458B2 - Handle rotation restriction lock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motorcycle such as a motorcycle or a scooter, in which a steering wheel is rotated to the left or right to a limit and a steering wheel tip is connected to a vehicle body to rotate the steering wheel. The present invention relates to a lock device that regulates and prevents theft.

[0002]

2. Description of the Related Art Conventionally, in a motorcycle, FIGS.
As shown in FIG. 1, one end of a wire or a chain (2) is fixed to a part of the vehicle body, and a lock body (1) provided at the other end of the chain is provided with a bolt (50) provided protrudingly at the handle pipe end. There has been a lock device that locks the steering wheel to the right or left during parking and locks it to the limit during parking to prevent stealing by disabling steering.

[0003]

This conventional locking device has a relatively simple structure and a high anti-theft effect in addition to a steering lock device for a vehicle, which assists a locking mechanism for operating a steering wheel. On the other hand, as shown in FIG. 12, a bolt (50) for locking the lock body (1) at the tip of the chain (2) protrudes from the tip of the grip (5). The shape of 50) is a stepped shape with concavities and convexities because of the provision of the flange portion (51), so that the motorcycle easily catches when it comes into contact with an object or a pedestrian while traveling, It was very dangerous.

[0004]

SUMMARY OF THE INVENTION According to the present invention, there is provided a conventional handle pipe having a locking portion on a handle pipe side.
This is a solution to the above problem. That is, the first aspect of the present invention is to rotate the steering wheel of the motorcycle left or right to the limit.
With the handle at the tip of the handle near the vehicle body
(7) The chain (2) with the base fixed to the vehicle body
Lock the provided lock body (1) to rotate the handle.
In the restricting lock, the locking part at the tip of the handle (7)
Are large-diameter mounting holes (11a) and small-diameter mounting holes at both ends.
A pipe (11) having (11b) by drawing.
The small-diameter mounting hole (11b) is
The pipe (11) is fixed to the tip of (4).
The lock body (1) to be combined has the pipe (1) on one side.
1) is provided with a cylindrical concave portion (1a) in which the cylindrical concave portion is fitted.
Part (1a) is urged by spring (18) and protrudes to both sides
And a large-diameter mounting hole (11a) of the pipe (11).
Over the circumference, engages the inner surface of the large-diameter mounting hole (11a)
A pair of engaging elements (17) and (17)
The other side of the lock body (1)
(17) Equipped with a cam (20) for operating the advancing and retreating of (17)
That the rotor (22) for the cylinder lock
It is a feature .

A second aspect of the present invention is a steering wheel of a motorcycle.
While turning to the left or right to the limit,
The base is fixed to the vehicle body at the locking part (7) at the tip of the near handle.
Of the lock body (1) provided at the tip of the chain (2)
Stop and lock the handle to restrict rotation.
The locking part (7) at the tip of the handle is a tip with no sharp edge on the outer circumference
(34c) and an umbrella-shaped stepped flange slightly behind the tip
(34a) and a mounting flange portion (34b) further rearward than this.
Fixed to the tip of the handle pipe (4),
A substantially columnar bolt (34) is provided.
4) The outer peripheral portion of the mounting flange portion (34b) has a cylindrical shape.
One end is narrowed, and the mounting hole (32a) at the center of the narrowed portion is
Through the bolt (34) and the mounting flange (34b)
Base (32) fixed to the tip of handle pipe (4)
Is provided on the inner periphery of the base (32) in the axial direction.
Movably provided at its outer end with the bolt (34).
A cylindrical cover (3) covers the stepped flange (34a).
1) is provided between the inner surface of the outer end of the cover (31) and the base (3).
2) provided via a spring (33) between the diaphragm portion and
On the other hand, the lock body (1) has the bolt on one side.
The tip (34a) of the base (34) and the base (32) fit.
A stepped cylindrical recess (1a),
(1a), which is urged by a spring (36) and protrudes,
Bolt over the stepped flange (34a) of the bolt (34)
And an engaging element (35) that engages with the
On the other side, a cam (37) for operating the engagement element (35)
a cylinder lock rotor (37) with a) is provided
It is characterized by having been done.

Further, a third aspect of the present invention is that the locking portion (7)
Inside the pipe (11), the large diameter is formed by a spring (13).
In the state of being constantly pressed in the direction of the mounting hole (11a)
And that the slider (12) is slidably provided.
The fourth aspect of the present invention is the above slider.
(12) is a disk having elastic projections (12a) around it.
The fifth aspect of the present invention is characterized in that
A cylinder in which the cover (31) has claws (31a) on the inner periphery
It is characterized by having a shape .

[0007]

[0008]

After parking the vehicle and turning the steering wheel to the right or left to the limit, the chain (2) is extended to the tip of the handle pipe (4) and provided at the tip of the chain (2). By simply pushing the lock body (1) into the locking portion (7), the locking body (1) and the locking portion (7) are connected with one touch, and the handle and the vehicle body are connected by the chain (2). The handle is locked so that it cannot rotate.

On the other hand, in order to release this locked state,
By simply inserting and rotating the key (3) into the cylinder lock provided on one side of the lock body (1), the engagement is released, and the lock body (1) can be removed from the locking portion (7). An immovable locked state can be released very easily.

The engaging portion (7) at the tip of the handle pipe (4) covers the constricted portion of the pipe (11) having no irregularities in its outer shape or the bolt (34) having a constricted shape. Since the cover (31) was provided, the catch at the engaging portion (7) was eliminated.

[0011]

Embodiment 1 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIGS. 1 to 6 show a first embodiment of the present invention, in which (1) is a cock main body which is a main part of the lock device. The lock body (1) is formed firmly by, for example, aluminum die casting, and has a side surface (the left side in the figure).
Is provided with a cylindrical concave portion (1a). A chain (2) is fixed to another side surface (lower side in the figure) by a pin (6) or the like, and the base of the chain (2) is fixed to the vehicle body as shown in FIG.

As shown in FIG. 5, a central portion of the cylindrical recess (1a) projects from the bottom of the cylindrical recess (1a). Flange (1c) having an opening (19c) and a hole (19b) in the center where a cam (20) described later enters.
As shown in FIG. 4, the case (19) with 9d) is formed with a screw (21) (21) by using a mounting hole (19e) provided in a flange (19d) to form a projection (19a) in a cylindrical shape. It is fixed toward the opening direction of the concave portion (1a).

A pair of L-shaped engaging elements (17) are provided in the opening (19c) of the projecting portion (19a) of the case (19).
(17) is slidably held in the circumferential direction from the center of the cylindrical recess (1a). This engaging element (17)
(17) has a substantially L-shape in plan view as shown in FIG. 5, and the two engaging members (17) are urged from the center of the cylindrical recess (1a) to the circumferential direction at all times. ) (1
7) A spring (18) is interposed therebetween, and is in contact with both opposing surfaces of the L-shape arranged symmetrically with respect to a point. In addition, the engaging element (1)
7) Projections (17a) (17a) are provided on one side (upper surface) near the center of (17) to be engaged with a cam (20), which will be described later. As shown in FIG. 1, inclined surfaces (17b) and (17b) are formed.

Further, the cylindrical concave portion (1) of the lock body (1) is provided.
On the side opposite to (a) (rightward in FIG. 1), for example, a rotor (22) of a cylinder lock provided with several plate tumblers (not shown) is provided, and is rotated by a key (3).

A cylindrical cam (20) having a substantially concave cross section as shown in FIG. 5 is connected to an end of the rotor (22), and the cam is a central hole of the case (19). (19b) and is rotatably held between the lock body (1) and the case (19). One side (the lower side in FIG. 5) of the cam (20) is provided with an inverted Z-shaped hole (20a) in a plan view, and this hole (20a) is provided in the engagement element (17) (17). The projections (17a) and (17a) are engaged as shown in FIG.

On the other hand, the engaging portion (7) on the handle to which the lock body (1) is engaged is a pipe (11) provided at the tip of the handle pipe (4) of the motorcycle. In 11), the front and rear ends are drawn inward at right angles, and a large-diameter mounting hole (11a) and a small-diameter mounting hole (11b) are formed in front and rear, respectively. The pipe (11) is fixed to the distal end of the handle pipe (4) by passing a bolt (14) through the small-diameter mounting hole (11b) at the rear and screwing the pipe into the handle pipe (4).

The bolt (14) is made of metal, and has a screw thread at the tip end inserted into the handle pipe (4). A thick vinyl tube (15) is inserted into the screw portion, and a ring-shaped nut (16) is screwed into the tip of the bolt (14) so as to press the tube (15).

The bolt (14) is attached to the handle pipe (4) by first passing the bolt (14) through the small-diameter mounting hole (11b) of the pipe (11), and then inserting the tube (15) into the threaded portion. ) And insert the nut (16)
Lightly press-fit into the handle pipe (4) with. When a tool such as a hexagon wrench is inserted into the head of the bolt (14) and rotated in this state, the bolt (14) rotates, but the tube (15) rotates due to friction with the inner surface of the handle pipe (4). And the nut (16) does not rotate due to friction with the tube (15).
The nut (16) slides in the right-hand direction in FIG. Then, the tube (15) is connected to the nut (1).
The bolt (14) and the pipe (11) are firmly fixed to the handle pipe (4) because the bolt (14) and the pipe (11) are compressed and swelled outward by 6) and pressed against the inner surface of the handle pipe (4). This mounting structure is the same as the conventional product.

After the pipe (11) is attached to the tip of the handle pipe (4) as described above, a spring (13) is inserted from a large-diameter attachment hole (11a) located at the outer end, and thereafter, as shown in FIG. Insert the slider (12) as shown. The slider (12) is formed of a resin material having elasticity such as a polyacetal resin, and has a larger elasticity than the large-diameter mounting hole (11a) of the pipe (11) as shown in FIG. It has a disk shape partially provided with the projection (12a), and when inserted through the mounting hole (11a), the elastic projection (12
When a) bends inward and gets over the mounting hole, it is restored to the outside again and is prevented from falling off, so that it can be mounted with one touch. Then, the slider (12) is constantly pressed in the direction of the mounting hole (11a) (that is, the outward direction) by the spring (13) inserted earlier, whereby the slider (12) is disengaged. At the time of stopping, the large-diameter mounting hole (11a) of the pipe (11) closes from the inside and plays a role of a safety cap.
It is possible to prevent a pedestrian or an object from being caught on the vehicle.

Next, locking and unlocking of the lock device according to the first embodiment of the present invention will be described. After parking the vehicle, the lock body (1) of the lock device is removed from the vehicle body side, the chain (2) is extended to the tip of the handle pipe (4), and the cylindrical concave portion (1a) of the lock body (1) is inserted into the pipe ( When it is fitted in 11), the projecting portion (19a) of the case (19) comes into contact with the slider (12) in the pipe (11) and pushes it. Next, when the slopes (17b) and (17b) at the tips of the engaging elements (17) and (17) come into contact with the mounting hole (11a), the engaging elements (17) and (17) are acted on by the slopes.
The projection (17a) (1) overcomes the force of the spring (18).
7a) slides gradually along the hole (20a) of the cam (20) toward the center of the cylindrical recess (1a).

When the lock body (1) is further pushed in, the slopes (17b) and (17b) of the engaging members (17) and (17) climb over the inner periphery of the large-diameter mounting hole (11a), and this large-diameter mounting hole is formed. Since the spring (18) expands and engages inside (11a) by the force of the spring (18), the lock body (1) is prevented from coming off in this state, and the handle pipe (4) and the vehicle body are connected by the chain (2). Will be done. The engaging members (17) and (17) expand and contract along the hole (20a) of the cam by the action of the inclined surfaces (17b) and (17b) and the spring (18). This can be performed with one touch without rotating the cam (20).

On the other hand, when releasing the locked state, the key (3) is inserted into the rotor (22) provided on the opposite side of the cylindrical concave portion (1a) of the lock body (1), and the key shown in FIG. When rotated clockwise as shown, the cam (20) rotates in conjunction therewith. As a result, the projections (17a) (17a) engaged with the holes (20a) of the cam (20).
Is pushed by the hole (20a), and both engagement elements (17) (1)
7) are mutually cylindrical recesses (1) against the force of the spring (18).
Slide toward the center of a). And the slope (17b) (1
When 7b) slides inward from the mounting hole (11a) of the pipe (11), the engagement is released, and the slider (12) in the pipe (11) is pushed by the spring (13). In conjunction with this, the lock body (1) is also pushed outward. That is, the lock state can be released by one-touch only by inserting the key (3) into the rotor (22) and rotating it.

[0023]

Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIGS.
It will be described based on. Note that the same reference numerals are given to parts common to the first embodiment. In the drawing, (1) is a lock main body which is a main part of the lock device as in the first embodiment. The lock body (1) is made of, for example, aluminum die-casting and is rigidly provided with a stepped cylindrical recess (1a) on the side surface (left side in the figure) and another side surface (lower side in the figure). , A chain (2) is fixed by a pin (6) or the like, and the base of the chain (2) is fixed to the vehicle body as shown in FIG.

A square hole (1c) is provided in the inner bottom wall surface of the cylindrical concave portion (1a), and the square hole (1c) is engaged with a stepped flange (34a) of a bolt (34) described later. The joint (35) projects toward the center of the cylinder while being pressed by the spring (36).

The engaging element (35) is shown in FIGS. 8, 9 and 10.
As shown in (1), there is a cutout (35a) on one side (lower part) with which the spring (36) is engaged, and a projection (35b) with which a cam (37a) of a rotor (37) described later comes into contact is integrated with the upper surface. And an arcuate engagement surface (35c) is formed at the tip end along the outer diameter of the bolt (34). After the engaging element (35) and the spring (36) are inserted into the square hole (1c) of the lock body (1), the engaging element (35) and the spring (36) are prevented from coming off by the plate (38) and the screw (39).

On the other side of the lock body (1), there is provided a rotor (37) of a cylinder lock having, for example, several plate tumblers (not shown), which is rotated by a key (3). A cam (37a) is formed integrally with the tip of the rotor (37).
a) is in contact with the projection (35b) of the engaging element (35) as shown in FIGS.

On the other hand, the engaging portion with which the lock body (1) is engaged is a metal bolt (34) provided at the tip of the handle pipe (4) of the motorcycle, and the bolt (34).
A base (32) provided between the base and the tip of the handle pipe (4), and a cylindrical member provided on a bolt (34) so as to be slidable in the axial direction on the inner periphery of the base (32). Cover (3
1) and a spring (33) for urging the cover (31)
And, it consists of.

The bolt (34) has its tip (34c)
Is formed in an arc shape without an acute angle portion on the outer periphery, and slightly behind this tip portion (34c) is an umbrella-shaped stepped flange portion (34a).
The mounting flange (34b) is further provided behind the stepped flange (34a). The bolt (34) has a thread at the tip to be inserted into the handle pipe (4) in the same manner as the bolt (14) of the first embodiment. (15) is plugged in and this tube (15)
A link-shaped nut (16) is screwed in so as to press the nut.

The base (32) has a cylindrical shape whose one end is narrowed linearly, and the central part of the narrowed portion is a mounting hole (3).
2a). Also, on the inner periphery of the base (32), an outer end portion covers the stepped flange portion (34a).
A cylindrical cover (3) provided with several claws (31a) on the inner peripheral surface
1) is provided so as to be slidable, and is urged by a spring (33) toward the outside of the handle pipe (4).

To attach these components to the tip of the handle pipe (4), first, the bolt (34) is passed through the attachment hole (32a) of the base (32). Next, a tube (15) is inserted into the threaded portion, and the nut (16) is lightly pressed into the handle pipe (4) with the nut (16) being slightly tightened.
When the bolt (34) is rotated with a jig such as a spanner so that the narrowed portion of the base (32) is sandwiched between the stepped flange portion (34b) and the outer end surface of the handle pipe (4), the first embodiment is performed. As in the example, since the tube (15) expands and is pressed against the inner surface of the handle pipe (4), the base (32) and the bolt (34) are strongly fixed to the tip of the handle pipe (4).

After the bolt (34) is attached, the spring (33) is set on the outer periphery of the bolt, and the cover (31) is inserted from the outside along the inner periphery of the base (32) and pressed. The claws (31a) of the cover (31) abut against the stepped flanges (34a) of the bolts (34), and when further pressed, the claws (31a) spread outward due to the action of both slopes, and the stepped flanges (34a). Therefore, the cover (31) is slidably set between the stepped flange (34a) and the mounting flange (34b) while being urged rightward in the figure by a spring (33).

Next, locking and unlocking of the lock device according to the second embodiment of the present invention will be described. After parking the vehicle, the lock body (1) of the lock device is removed from the vehicle body side, the chain (2) is extended to the tip of the handle pipe (4), and the cylindrical concave portion (1a) of the lock body (1) is bolted ( 34), the step (1b) of the cylindrical concave portion
Abuts the cover (31), and pushes the cover (31) against the force of the spring (33).

Next, the engaging element (35) is moved to the stepped flange (34).
a), the engaging element (35) has its tip projecting part completely removed from the cylindrical recess (1a) against the force of the spring (33) by the action of the slope of the stepped flange (34a). Immerse in the lock body (I). Then, the lock body (1) is further pushed in, and the engaging element (35) is moved to the stepped flange (34).
After passing through (a), the engaging element (35) projects inside the stepped flange (34a) as shown in FIG. 8 by the action of the spring (33). Therefore, in this state, the lock body (1) is prevented from coming off, and the handle pipe (4) and the vehicle body are connected by the chain (2).

On the other hand, when releasing the locked state, the key (3) is inserted into the rotor (37) of the cylinder lock provided on another side surface of the lock body (1), and the key is rotated in the direction of the missing mark in FIG. Then, the cam (37a) provided integrally with the rotor (37) rotates in conjunction therewith. Cam (3
8 and 10, the projection (35b) of the engaging element (35) is in contact with the engaging element (35), so that the engaging element (35) is pushed by the cam (37a) and resists the spring (36). To the lock body (1) from the conical recess (1a) (the lower side in FIG. 8).
Immerse yourself in When the distal end of the engaging element (35) is completely immersed from inside the cylindrical recess (1a), the bolt (3)
4) is disengaged from the stepped collar portion (34a), and the cover (3) is disengaged.
The step (1b) of the cylindrical recess (1a) is pushed outward by the spring (33) biasing 1), so that the lock body (1) itself is also pushed outward. That is, the lock state can be released by one-touch only by inserting and rotating the key (3) into the rotor (37).

Although the embodiment of the present invention has been described above, the present invention is not limited to the structure shown in the embodiment. For example, the chain (2) may be a wire rod or a metal rod having joints. Alternatively, the cam (20) may be formed integrally with the rotor (22). Also,
It goes without saying that various other configurations of the lock body (1) and the locking portion (7) can be made without departing from the spirit of the present invention.

[0036]

For configuration of the present invention above, according to the present invention, the sliding
Large diameter mounting hole for pipe (11) when child (12) is unlocked
Plays the role of a safety cap that blocks (11a) from inside
In other words, during traveling, a large diameter mounting hole (11a)
There is no danger of pedestrians or objects being caught, and the safety is high. In addition, the lock can be performed by one-touch operation. When the lock state is released, the lock body can be removed only by operating the key. Therefore, one-touch operation is possible for locking and unlocking, and the operability is high.

[Brief description of the drawings]

FIG. 1 is a sectional view of a first embodiment of the present invention.

FIG. 2 is a sectional view showing a state of attachment to a handle pipe of the first embodiment.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a sectional view taken along line BB of FIG. 2;

FIG. 5 is an exploded perspective view of a cam, a case, and an engaging element.

FIG. 6 is a perspective view of a slider.

FIG. 7 is a sectional view of a second embodiment of the present invention.

FIG. 8 is a sectional view showing a state of attachment to a handle pipe according to the second embodiment.

9 is a sectional view taken along the line CC in FIG. 8;

FIG. 10 is an exploded perspective view of an engagement element and a cam.

FIG. 11 is an external view showing a use state of the lock device according to the present invention.

FIG. 12 is an external view showing a conventional lock device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Lock body 1a ... Cylindrical recessed part 1b ... Step part 2 ... Chain 3 ... Key 4 ... Handle pipe 7 ... Locking part 11 ··· Pipe 11a · · · Large diameter mounting hole 12 · · · Slider 12a · · · Elastic projection 17 · · · Engagement element 17a. ..Projection 17b ・ ・ ・ Slope 19 ・ ・ ・ ・ Case 19a ・ ・ ・ Protrusion 19b ・ ・ ・ Hole 19c ・ ・ ・ Opening 20 ・ ・ ・ ・ Cam 22 ・ ・ ・ ・ ・ ・ Rotor 31 ・ ・ ・ ・ ・ ・ Cover 31a・ ・ ・ Claw 32 ・ ・ ・ ・ ・ ・ Base 34 ・ ・ ・ ・ ・ ・ Bolt 35 ・ ・ ・ ・ ・ ・ Engagement 35a ・ ・ ・ Cut 35b ・ ・ ・ Protrusion 37 ・ ・ ・ ・ ・ ・ Rotor 37a ・ ・ ・ Cam

Claims (5)

(57) [Claims] 1. The handlebar of a motorcycle is shifted left or right to the limit.
Lock the tip of the handle near the vehicle body in the rotated state
A chain (2) with the base fixed to the vehicle body at the part (7)
The lock body (1) provided on the handle is locked, and the handle is turned.
Locking part at the tip of the handle
(7) A pipe (11) having a large-diameter mounting hole (11a) and a small-diameter mounting hole (11b) at both ends by drawing.
The small-diameter mounting hole (11b) is fixed to the tip of the handle pipe (4), while the lock body (1) engaging with the pipe (11) has the pipe (1) on one side.
1) is provided with a cylindrical recess (1a) into which the spring (18) is urged by the spring (18) to protrude to both sides, and a large-diameter mounting hole (11a) for the pipe (11). ), A pair of engaging elements (17) and (17) are provided so as to slide over the inner circumference of the lock body (1) and engage with the inner surface of the large-diameter mounting hole (11a). A handle rotation restricting lock characterized in that a rotor (22) for a cylinder lock provided with a cam (20) for operating the advancing and retracting of the engaging elements (17) (17) is provided on the side. 2. The handlebar of the motorcycle is shifted left or right to the limit.
Lock the tip of the handle near the vehicle body in the rotated state
A chain (2) with the base fixed to the vehicle body at the part (7)
The lock body (1) provided on the handle is locked, and the handle is turned.
Locking part at the tip of the handle
(7) has a tip portion (34c) having no acute angle portion on the outer periphery, an umbrella-shaped stepped flange portion (34a) slightly behind the tip portion, and a mounting flange portion (34b) further behind the tip portion. A substantially cylindrical bolt (34) fixed to the tip of the handle pipe (4), and one end of the bolt (34) is cylindrically formed on the outer periphery of the mounting flange (34b), A base (32) is provided, in which the bolt (34) is inserted through a mounting hole (32a) at the center of the throttle portion and fixed to a distal end of the handle pipe (4) by a mounting flange (34b). (32) is provided slidably in the axial direction on the inner periphery thereof, and has a stepped flange portion (34) of the bolt (34) at an outer end thereof.
a) a cylindrical cover (31) is provided between the inner surface of the outer end of the cover (31) and the throttle portion of the base (32) via a spring (33) so as to cover a). On the other hand, the lock body (1) is provided with a stepped cylindrical recess (1a) on one side where the tip (34a) of the bolt (34) and the base (32) fit. 1a), an engaging element (35) is provided, which is urged by a spring (36) to protrude, rides over the stepped flange (34a) of the bolt (34) and engages with the bolt (34), and on the other side. A handle rotation restricting lock provided with a cylinder lock rotor (37) provided with a cam (37a) for operating the advancing and retracting of the engagement element (35). 3. A slider which is constantly pressed toward the direction of the large-diameter mounting hole (11a) by a spring (13) inside the pipe (11) of the locking portion (7). 2. The device according to claim 1 , wherein (12) is slidably provided.
The handle rotation restricting lock according to 1. 4. The handle rotation restricting lock according to claim 3 , wherein said slider (12) is disk-shaped and has an elastic projection (12a) around it. 5. The cover (31) has a claw (31) on an inner peripheral portion thereof.
The handle rotation restricting lock according to claim 2 , wherein the lock has a cylindrical shape having a).