JP3140658B2 - Horseshoe 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 horseshoe lock mounted on a locked object such as a bicycle.

[0002]

2. Description of the Related Art Conventionally, a horseshoe lock used as a locking device for a bicycle is known (for example, Japanese Utility Model Publication No. 35-469).
No. 7). In this type of horseshoe lock, the wheel of the bicycle is locked in a non-rotatable state by sliding the kanuki to the locking position. Even while driving, there is a possibility that the kanuki will slide, which may lead to breakage or a fall of the bicycle.

[0003] In order to solve such a problem, the applicant of the present application has already proposed in Japanese Utility Model Publication No. 4-22671 a horseshoe lock in which the kannu does not slide even if the baggage or the like is accidentally hit. As shown in FIG. 4, this horseshoe lock is attached to the bicycle C in the same manner as the conventional one, but is configured so that the kanuki will not slide unless the lever 103 is operated while the key 101 is twisted in a predetermined direction. Therefore, if the luggage or the like accidentally comes into contact with the lever 103, the kanuki would not slide, and the damage or fall of the bicycle could be prevented.

[0004]

However, according to the prior art, since it is necessary to operate both the key 101 and the lever 103 at the same time, it is necessary to use both hands to perform the locking operation. For example, when one hand is occupied by luggage, the locking operation cannot be easily performed.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a horseshoe lock in which kanuki is hard to malfunction and can be easily locked with one hand.

[0006]

In order to achieve the above object, the present invention provides a hollow case curved in an arc shape and a circle which can be stored in the case. It consists of a rod-like body curved in an arc shape, and can be slid to a locking position for bridging both ends of the case or an unlocking position for releasing the bridging, and a slit formed in the case while projecting from the kanuki. A horseshoe lock having a lever protruding out of the case through which the kanuki can be slid, and a locking mechanism for fixing the kanuki at the locking position to disable sliding.
The lever is perpendicular to the slide surface of the kanuki
A pin protruding in the direction
Pin is always rotatable around the axis and slidable in the axial direction of the pin.
Function knob and a surface of the knob facing the case.
Attach the engaging projection provided and the knob to the case side.
And the energizing coil spring.
Is engaged with the engaging projection in the unlocked position.
A hole is formed .

According to the horseshoe lock of the present invention, the knob is connected to the pin.
Slidably attached to the coil spring
When the lock is unlocked,
Lever moves to the position where the engagement hole and the engagement protrusion face each other
Then, the knob slides, and the engaging projection fits into the engaging hole.
Only, Kannuki cannot slide. When locking,
When the pinch is pinched and pulled in the sliding direction, the above engagement is released.
Operate the lever in the sliding direction
Then, it can be in the locked state.

[0008] Therefore, it is possible to the locked state by operating only a lever, a very operability is good,
Locking is easy with one hand.

In the unlocked state , if a load comes into contact with the lever, even if an external force is applied in a direction such as to slide the knuckle, the knob is pulled.
Unless slid to direction, such is the engagement is released Ino
Thus, the kanuki does not slide and become locked. Further, even if an external force is applied in such a direction as to pull the knob , the knuckle does not slide with a force acting in such a direction. In other words, unexpected kanuki slides are extremely unlikely and safe.

[0010]

[0011]

[0012]

[0013]

Further, in the case of the present horseshoe lock, since the knob is rotatably attached to the pin, when the pin moves while rotating with the lever operation, the knob follows the rotation and rotates. Therefore, the rotation angle is easily maintained by the operator.

[0015]

Next, an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the horseshoe lock 1 of the present embodiment includes a hollow case 3 curved in an arc shape and a rod-shaped body curved in an arc shape. 1) or a cannula 5 slidable to an unlocking position (see FIG. 2) housed in the case 3 by releasing the bridge, and a slit 7 formed in the case 3 while being protruded from the cannula 5. Lever 9 that projects outside the case through which the kanuki 5 can be slid, and a locking mechanism 11 that locks the kanuki 5 at the locking position to disable sliding.
And

Further, as a characteristic configuration of the present embodiment, the lever 9 is provided with a movable portion that operates in a direction different from the sliding direction of the cannon 5. More specifically, as shown in FIG. 3A, the lever 9 has a pin 13 protruding in a direction orthogonal to the sliding surface of the kanuki 5 and is attached to the pin 13 so that the lever 9 is rotatable about the pin 13 as an axis. A knob 15 that is slidable in the axial direction, an engagement protrusion 17 protruding from a surface of the knob 15 facing the case, and a knob 15
And a coil spring 19 (indicated by a dashed line in the figure) for urging the coil spring toward the case.

Further, an engaging hole 21 is formed in the case 3 as an engaging portion which is removably engaged with the engaging projection 17 of the lever 9 in the unlocked position. The internal structure of the horseshoe lock 1 of the present embodiment is almost the same as that of the conventional horseshoe lock,
In brief, a coil spring (not shown) is housed inside the case 3, and one end of the coil spring is fixed to the case 3, and the other end is connected to the end of the kanuki 5 in the case 3. ing. Then, when the kanuki 5 slides and moves to the locking position shown in FIG.
The coil spring is extended, and the cannus 5 is biased in a direction to be accommodated in the case 3. When the kanuki 5 moves to the locking position, the claw (not shown) of the locking mechanism 11 engages with a groove (not shown) formed in the kanuki 5, and the kanuki 5 is fixed at that position. The locking mechanism 11 can be operated by a detachable key 31, and when the key 31 is twisted, the engagement between the locking mechanism 11 and the kanuki 5 is released.
When the locking mechanism 11 is disengaged from the lock 5, the elastic force of the coil spring causes the lock 5 to move to the case 3.
To the unlocked state shown in FIG.

In the horseshoe lock 1 constructed as described above, when the lever 9 is in the unlocking position, the engaging projection 17 formed on the knob 15 as the movable portion is urged by the coil spring 19 to engage the engaging hole. 21. In this embodiment, the engaging hole 21 is continuous with the slit 7, but as shown in FIG. Unless 17 is released from engagement with the engagement hole 21, the kanuki 5 cannot be slid.

Here, when the locking operation is to be performed artificially, as shown in FIG.
5 is pulled up to release the above-mentioned engagement, and the lever 9 is directly operated in the direction of arrow B shown in FIG. As a result, the canker 5 slides from the unlocked position to the locked position. Therefore, lever 9
Since only one of them can be operated to be in a locked state, the operability is extremely good and the locking can be easily performed with one hand.

When a load comes into contact with the lever 9, an external force (ie, a mere sliding of the cannula 5)
Even if an external force acting in the direction of arrow B in the drawing is applied,
Since the knob 15 is not pulled up, the engagement is not released, and the lock 5 is not slid and locked. Further, even if an external force that moves the knob 15 (that is, an external force acting in the direction of arrow A in the figure) is applied, the screw 5 does not slide. That is,
Unless the operation is intentionally performed, the cannus 5 do not slide, and various problems caused by inadvertent sliding of the cannus 5 are extremely unlikely to occur.

Further, the knob 15 is a coil spring 19
When the lever 9 moves with the unlocking operation, the engaging projection 17 is automatically fitted into the engaging hole 21. Therefore, the lever 9 is securely fixed only by moving the canker 5 to the unlocking position by the unlocking operation.

In addition, since the knob 15 is rotatably attached to the pin 13, when the pin 13 moves while rotating with the operation of the lever 9, the knob 15 follows the rotation and rotates. Therefore, since the rotation angle is maintained at a level that is easy for the operator to operate, the operation is extremely easy.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modes can be adopted without departing from the gist of the present invention. For example, in the embodiment, the engagement protrusion is provided on the lever side and the engagement hole is formed on the case side. However, various other specific engagement structures can be considered. For example, a similar engagement structure can be configured by providing an engagement hole on the lever side and an engagement protrusion on the case side .

[Brief description of the drawings]

FIG. 1 is a front view showing a locked state of a horseshoe lock according to an embodiment.

FIG. 2 is a front view showing an unlocked state of the horseshoe lock of the embodiment.

FIG. 3 shows a main part of the horseshoe lock of each embodiment,
(A) is a longitudinal sectional view of the lever portion in the engaged state,
(B) is a cross-sectional view of the engagement protrusion, and (c) is a longitudinal cross-sectional view in a state where the engagement of the lever is released.

FIG. 4 is a perspective view showing a conventional horseshoe lock.

[Explanation of symbols]

1 ... horseshoe lock, 3 ... case, 5 ... kanuki,
7 ... slit, 9 ... lever, 11 ... locking mechanism, 13 ... pin, 15 ... knob, 17 ... engagement protrusion, 19 ... coil spring, 21 ... Engagement hole, 31 ... key.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05B 71/00 B62H 5/16

Claims (1)

(57) [Claims] 1. An arcuately curved hollow case, and an arcuately curved rod-like body that can be stored in the case, to a locking position for bridging both ends of the case or to an unlocking position for releasing the bridging. A slidable kanuki, a lever protruding from the kanuki, and protruding out of a case through a slit formed in the case to allow the kanuki to slide, and fixing the kanuki at the locking position in horseshoe lock and a locking mechanism for disabling slide by the lever, projecting in a direction perpendicular to the sliding surface of the yoke
A pin , attached to the pin, and always rotatable around the pin.
A knob slidable in the axial direction of the pin, and an engagement projection protruding from a surface of the knob facing the case.
And a coil spring for urging the knob toward the case.
And the case includes the engagement protrusion in the unlocked position.
A horseshoe lock having an engagement hole for engagement .