JPH10218053A - Ring padlock for bicycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To more firmly mount a ring padlock for a bicycle mounted in its rear fork, so that the ring padlock can be fixed to a mounting position stably for a long period, by a pair of right and left mounting metal fittings and a mounting band. SOLUTION: In both ends of a pair of right and left mounting metal fittings 6, a respectively standing upper and lower standing pieces 9a, 9b and 9c, 9d are made to stand mutually unparalleled, also by forming each standing piece in a tilting trapezoid so as to be high in the outside and low in the inside of a circular arc of a ring padlock 1, the mounting metal fitting tightened to a rear fork is made difficult to deviate respectively in a horizontal and a vertical direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a hollow horseshoe-shaped lock body in which openings at both lower ends are opposed to each other, and an arc-shaped lock rod pulled from a rear end by a restoring spring is fitted. With regard to a bicycle ring lock attached to a rear hawk of a bicycle, the feature is that the ring lock can be stably and firmly mounted by a pair of left and right mounting brackets and a mounting band provided on the back of the lock body. Is what you do.

[0002]

2. Description of the Related Art A pair of right and left mounting brackets are respectively provided on the back surface of a lock body of a ring lock along the length direction of a rear fork of a bicycle, and standing pieces provided on both upper and lower ends of each mounting bracket are provided.
For example, Japanese Utility Model Laid-Open Publication No. 3-63484 discloses a bicycle ring lock in which a predetermined mounting gap is formed between the ring lock and the rear fork by being brought into contact with the side surface of the rear fork while tightening the mounting band. is there.

[0003]

In the ring lock of the prior application, upstanding pieces provided at both ends of a mounting bracket are formed upright and vertically parallel to each other, and are formed in a rectangular shape having a constant height. For this reason, in the conventional ring lock, the upright pieces of the mounting bracket are vertically parallel to each other at the abutting position of the rear fork, and form a press-contact state in which the right and left easily slide along the transverse direction of the rear fork. In addition, the fact that the standing pieces are each rectangular also promotes the above-mentioned left and right sideslip, which causes a problem that it is difficult to stably attach the ring lock for a long period of time and it is difficult to firmly attach the ring lock.

[0004] In view of the above, the problem to be solved by the present invention is to eliminate the drawbacks of the mounting bracket of the conventional bicycle ring lock so that the mounting position of the ring lock can be stably and firmly maintained for a long period of time. It is to make.

[0005]

Accordingly, the present invention comprises a pair of left and right mounting brackets along the length direction of a rear fork of a bicycle to which a ring lock is mounted on the back of a lock body. A bicycle ring lock provided with upstanding pieces that abut against the rear fork above and below the mounting band and form a predetermined mounting gap between the ring lock and the rear fork together with tightening of the mounting band wound around the rear fork. The upper and lower standing pieces are non-parallel to each other so that the upper and lower intervals are wide and narrow on the outside of the ring lock, and are formed in trapezoids so that the height is high on the outside and low on the inside. A bicycle ring lock is provided.

As shown in FIGS. 1 and 2, the ring lock of the present invention is non-parallel to the left and right mounting brackets so that the erecting pieces are widened on the outside and narrow on the inside. When an external force from the side acts on the ring lock attached to the bicycle, the resistance between the pair of left and right mounting brackets in both the direction in which the distance between the upper and lower standing pieces that are in pressure contact with the rear fork becomes smaller and wider. To prevent lateral displacement. At the same time, since the upper and lower standing pieces are pressed against the rear fork in a non-parallel manner, slippage in the vertical direction (length direction) of the rear fork is suppressed as compared with a conventional product pressed in parallel.

Further, as shown in FIGS. 1 and 3,
Since the height is inclined outside the ring lock so that it is high and low inside, it is formed in a trapezoid, so that each interacts in a wedge shape driven from both sides, and the left and right mounting brackets Side slippage is suppressed, and side slippage of the ring lock at the mounting position is prevented. Also, it can be firmly attached to the rear fork. The present invention has solved the above-mentioned problems as described above.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, this ring lock 1 is hollow and horseshoe-shaped, and has openings 3 at both ends corresponding to the locking intervals of the tires.
And a handle 4 ′ is rotatably projected to the side of the lock body 2 so as to reciprocate between the openings 3 while being pulled from the rear end by a restoring spring (not shown). An arc-shaped lock rod 4 slidably fitted in the lock body 2 and a part of the lock body 2
A lock mechanism 5 provided so as to protrude from one upper side of the front side and open and close the lock of the lock rod 4 by rotating the key 5 ′;
It has a pair of right and left mounting brackets 6 attached to the back surface of the lock body 2 and a mounting band 7 that is fastened together with the mounting bracket 6 to the rear fork of the bicycle.

As shown in FIG. 2, the lower left and right mounting brackets 6 are fixed to the back surface of the lock main body 2 with rivets 8 by extending the lower part of the left and right sides along the length direction of the rear fork of the bicycle, as shown in FIG.
In addition, upright pieces 9a, 9b, 9c, 9d are provided at both ends (upper and lower), respectively, at an appropriate height.

As shown in FIG. 2, upright pieces 7a and 7b and upright pieces 7c and
7d are not parallel to each other and are provided such that the interval B outside the arc A of the ring lock 1 is larger than the interval A inside. Further, each of the upright pieces 9a, 9b, 9c, 9d is shown in FIGS.
As shown in FIG. 7, each of the trapezoidal edges has a rim 9 'inclined so that a height D outside the arc of the ring lock 1 is higher than a height C outside the arc.

In this embodiment, the mounting band 7 is provided separately from the mounting bracket 6, and as shown in FIG. 1, between the mounting bracket 6 whose central portion is bent in a trapezoidal shape and the back surface of the lock body 2. It has a screw seat 10 at one end and a slot 11 at the other end, and as shown in FIG.
Is wound from both sides, and the rear fork 12 is attached together with the mounting bracket 6 by screwing a set screw 13 passing through both ends.
The ring lock 1 is tightened to a desired mounting position.

With the fastening to the rear fork 12 by the mounting band 7, the left and right mounting brackets 6 are provided with the inclined edges 9 'of the upright pieces 9a, 9b, 9c and 9d as shown in FIG. To form a predetermined mounting gap E between the ring lock 1 and the rear fork 12.

The mounting position of the ring lock 1 is non-parallel to each other so that the upright pieces 9a, 9b, 9c, 9d, which stand up at both ends of the left and right mounting brackets 6, are wide on the outside and narrow on the inside. The upper and lower standing pieces 9a pressed against the rear fork 12 when an external force acts from the side at
, 9b, 9c, 9d, a resistance is formed between the pair of right and left mounting brackets 6 in the direction in which the distance between the left and right mounting brackets 6 becomes narrower and in the direction in which the distance becomes wider.

Further, each of the standing pieces 9a, 9b, 9c, 9d
As shown in FIGS. 1 and 3, each of the wedges is formed so as to have a trapezoidal shape in which the height is high outside the ring lock 1 and low inside, so that the wedges are driven into each other from both sides. In this way, the left and right mounting brackets 6 are prevented from skidding, and the ring lock 1 can be firmly mounted via the mounting brackets 6 to maintain stability.

The upper and lower standing pieces 9a, 9b,
9c and 9d abut obliquely with respect to the transverse direction of the rear fork 12, so that the upright resistance of the upright piece is increased in comparison with the conventional product in which the upright direction of the upright piece is parallel to the transverse direction, and the ring lock 1 is attached. Strengthen against vertical displacement.

Although the embodiment shown in the figure is a case in which the mounting bracket 6 is provided separately from the mounting bracket 6, the present invention can also integrally provide the mounting bracket and the mounting band in a cross shape. In this case, the same operation and effect as those of the above embodiment can be obtained.

[0017]

The ring lock according to the present invention constructed as described above and used as described above, can be vertically and vertically (in the longitudinal direction of the fork) and left and right (of the fork) at the mounting position of the rear fork of the bicycle. Since the displacement in the (transverse direction) is prevented by pressing the non-parallel trapezoidal standing pieces against the rear fork, a strong ring lock can be stably mounted for a long time. The present invention has excellent effects as described above.

[Brief description of the drawings]

FIG. 1 is a partially exploded perspective view of an embodiment of the present invention.

FIG. 2 is a rear view of the ring tablet.

FIG. 3 is a partially cutaway plan view showing a state where the bicycle is attached to a rear fork.

[Description of sign]

 Reference Signs List 1 ring lock 2 lock body 3 opening 4 locking rod 4 'handle 5 locking mechanism 5' key 6 mounting bracket 7 mounting band 8 rivet 9 standing piece (9a, 9b, 9c, 9d) 9 'edge 10 screw seat 11 long hole 12 Rear fork 13 Set screw A interval B interval C height D height E gap

Claims (1)

[Claims] 1. A pair of left and right mounting brackets along the longitudinal direction of a rear fork of a bicycle to which a ring lock is mounted on the back surface of the lock body, and a mounting band wound around a rear fork at both ends of each mounting bracket. In a bicycle ring lock provided with upright pieces that abut against a rear fork above and below the mounting band together with tightening to form a predetermined mounting gap between the ring lock and the rear fork, the upper and lower upright pieces are vertically The bicycle is characterized in that it is erected in a non-parallel manner so that the distance between the outside and the inside of the ring lock is wide and narrow on the inside, and the trapezoid is formed so that the height is high on the outside and low on the inside. Ring tablets.