JPH0811758A - Theft preventing lock - Google Patents

Abstract

PURPOSE:To improve the storage performance of a theft preventing lock by rotating a lock housing around an arm to store it in a space surrounded by arms in the case of storing the theft preventing lock in the locked state at the time of non-use. CONSTITUTION:A theft preventing lock 1 is formed by pivotally fixing one ends of a first arm 2 and a second arm 3 of the same shape, formed of metal pipes curved in approximately U-shape, rotatably to each other by a shaft 4. A lock housing 5 is fitted to the other end of the first arm 2, rotatably around the arm 2. In the case of storing this theft preventing lock 1 in the locked state at the time of non-use, the lock housing 5 is rotated by 180 deg. around the first arm 2 and stored in a space surrounded by the first and second arms 2, 3. The longitudinal dimension HI of the theft preventing lock 1 can be thereby reduced by DELTAH.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antitheft lock for locking the rotation of wheels to prevent theft of a motorcycle or the like.

[0002]

2. Description of the Related Art Various types of antitheft locks have been proposed and put into practical use.

By the way, this kind of anti-theft lock is
Since it is stored in a storage box such as a motorcycle when not in use, it is desirable that the size in the storage state is as small as possible in the storage state (locked state), or depending on the shape of the storage box etc. It may be convenient for the possible dimensions to be variable.

[0004]

However, most of the conventional anti-theft locks have the same shape and size when stored and when used (locked), which makes it difficult to store them. Was sometimes accompanied.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an anti-theft lock having a high storability, in which the size of the stored state can be made smaller or variable with respect to the used state. To provide.

[0006]

To achieve the above object, the present invention provides a lock in which one end of each of a first arm and a second arm is attached to the other end of one of these arms. It is characterized in that the housing is rotatably pivoted so that the other arm can be passed over and rotated, and the lock housing is rotatably attached around the arm to form an antitheft lock.

[0007]

According to the present invention, when the antitheft lock is to be stored in a locked state when it is not used, the lock housing is rotated around the arm to be stored in the space surrounded by the arm. Therefore, the size of the anti-theft lock in the stored state is smaller than that in the used state, and the stowability of the anti-theft lock is improved.

When the anti-theft lock is not used and is stored in the unlocked state, it is possible to rotate one arm over the lock housing attached to the other arm. The size of the anti-theft lock in the stored state can be changed according to the shape and size of the storage space, and this also improves the storage of the anti-theft lock.

[0009]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a plan view of an anti-theft lock according to this embodiment, FIG. 2 is an enlarged sectional view taken along the line AA of FIG. 1, and FIG. 3 is a sectional view of a lock housing portion of the anti-theft lock. Four
(A)-(c) is a top view which shows the use state of the same anti-theft lock, and the storage states 1 and 2.

As shown in FIG. 1, the antitheft lock 1 according to this embodiment has a first arm 2 and a second arm of the same shape obtained by bending a metal pipe into a substantially U-shape. One end of 3 is rotatably pivoted by a shaft 4 into a substantially rectangular frame shape, and a lock housing 5 is attached to the other end of the first arm 2 so as to be rotatable around the arm 2. There is.

Here, the structure of the pivotally connecting portion (joint portion) of the first arm 2 and the second arm 3 will be described with reference to FIG.

As shown in the figure, boss portions 6 and 7 are provided at the respective ends of the first arm 2 and the second arm 3, and the boss portion 6 of the first arm 2 has different sizes. Circular holes 6a, 6
A tapered hole 6c that connects b with the circular holes 6a and 6b is formed. Further, the boss portion 7 of the second arm 3 is formed with circular holes 7a, 7b of different sizes and different sizes, and a tapered hole 7c that expands outward from the circular hole 7b.

On the other hand, a groove 4b is formed on one end of the cylindrical straight portion 4a constituting the intermediate portion of the shaft 4 so as to surround it, and the other end is enlarged in diameter toward the outside. A tapered portion 4c is formed.

With the C ring 8 fitted in the groove 4b of the shaft 4, the shaft 4 is inserted from the circular hole 6a side of the boss portion 6 of the first arm 2 with the C ring 8 side as the tip. When this is inserted, the tip of the shaft 4 passes through the tapered hole 6c of the boss portion 6, the circular hole 6b, the tapered hole 7c of the boss portion 7 and the circular hole 7b in order. When the C-ring 8 fitted into the tip of the shaft 4 passes through the circular hole 7b and reaches the large-diameter circular hole 7a, the C-ring 8 expands to prevent the shaft 4 from coming off, The taper portion 4c is the boss portion 6
By engaging the tapered hole 6c of the first arm 2
And one ends of the second arms 3 are rotatably attached to each other.
The tip of the shaft 4 is covered with a cap 9 fitted in the circular hole 7a of the boss 7.

By the way, as shown in the drawing, a gap is formed between the shaft 4 and the circular holes 6a, 6b of the boss portion 6 and the tapered hole 6c, and the second arm 3 is made to correspond to the first arm 2
The arms 2 and 3 are connected to each other in a loose state so as to be able to rotate over the lock housing 5 attached to the arm.

Next, the structure of the lock portion will be described with reference to FIG.

A circular hole 5a is formed in the lock housing 5 in the horizontal direction of FIG. 3, and the circular hole 5a is formed in the vertical direction.
A circular hole 5b is formed so as to open at. The end of the first arm 2 is inserted into one end of the circular hole 5a of the lock housing 5, and the lock housing 5 is
It is rotatably attached around the arm 2 by a C ring 10 fitted in a groove 2a formed at the end of the first arm 2.

A cylinder 11 is fitted in the circular hole 5b of the lock housing 5, and a lock claw 12 is rotatably attached to the upper end of the cylinder 11 facing the lock housing 5. .

Further, the circular hole 5a of the lock housing 5 is
The other end of the second arm 3 can be inserted into the other end of the second arm 3 and is formed at one end of the arm 3 with the second arm 3 inserted into the circular hole 5a as shown in FIG. When the lock claw 12 is engaged with the arcuate groove 3a, the antitheft lock 1 is locked.

To release the locked state of the anti-theft lock 1, a key (not shown) is inserted into the cylinder 11 incorporated in the lock housing 5 and the lock pawl 12 is rotated, and the arm of the lock pawl 12 is rotated. The engagement with the groove 3a of 3 may be released. Then, the end of the second arm 3 can be pulled out from the lock housing 5.

In order to use the antitheft lock 1 according to this embodiment, the second arm 3 is removed from the lock housing 5 and both arms 2 and 3 are rotated about the shaft 4. After opening these, for example, the second arm 3 is passed through the rim of a wheel (not shown) of a motorcycle or the like, and then the end thereof is inserted into the circular hole 5a of the lock housing 5, and finally the cylinder 11 is provided with a key (not shown). Insert the lock claw 12
It is only necessary to rotate to engage this with the groove 3a of the arm 3. Then, the anti-theft car lock 1 is locked in the state shown in FIGS.
As shown in (a), it is in a use state (locked state), and since the rotation of the wheels is locked by the antitheft lock 1, theft of a motorcycle or the like can be prevented.

When the rider uses the motorcycle or the like, the key is inserted into the cylinder 11 of the antitheft lock 1 in the locked state and the lock claw 12 is rotated to release the engagement with the groove 3a. Then, the second arm 3 comes out of the lock housing 5, so that the rider can remove the anti-theft lock 1 from the wheel and store it in a predetermined storage box or the like.

Here, the form of the stolen lock 1 in the stowed state is shown in FIGS. 4 (b) and 4 (c), respectively.

FIG. 4B shows a form in which the anti-theft lock 1 is stored in a locked state when it is not used. At this time, the lock housing 5 is provided with the first arm 2
When it is housed in the space surrounded by both arms 2 and 3 by rotating it by 180 ° around, the vertical dimension H ₁ of the antitheft lock 1 in the housed state is shown in FIG. The dimension ΔH can be suppressed to be smaller than the dimension H ₀ , and the stowability of the anti-theft lock 1 in a storage box or the like can be improved. The lateral dimension B ₁ of the anti-theft lock 1 in the stored state 1 shown in FIG. 4B is the same as the lateral dimension B ₀ in the used state shown in FIG. 4A (B ₁ = B _0). ).

When the anti-theft lock 1 is not used and is to be stored in the unlocked state, as shown in FIG.
As shown in (c), the second arm 3 is connected to the first arm 2
Since the lock housing 5 attached to the can be rotated and rotated, the vertical dimension H ₂ and the horizontal dimension B ₂ of the stolen lock 1 in the stowed state can be varied according to the shape and dimensions of the stowage space. Therefore, the stowability of the anti-theft lock 1 can be improved.
In addition, the stolen state lock 2 shown in FIG.
, The vertical dimension H ₂ becomes smaller than the vertical dimension H ₀ in the use state shown in FIG. 4A (H ₂ <H ₀ ).
On the other hand, the lateral dimension B ₂ is larger than the lateral dimension B ₀ in the use state shown in FIG. 4A (B ₂ > B ₀ ).

By the way, in the above embodiment, the lock housing 5 is rotatably attached to the end portion of the first arm 2 by the C-ring 10. However, as shown in FIGS. 5 and 6, the lock housing 5 is press-fitted into the lock housing 5. The lock housing 5 is moved to the first arm 2 by engaging the two formed pins 13 with the groove 2a formed at the end of the first arm 2.
It may be rotatably attached to the end of. 5 is a cross-sectional view showing a modified embodiment of the mounting structure of the lock housing 5,
FIG. 6 is a sectional view taken along line BB of FIG.

[0028]

As is apparent from the above description, according to the present invention, one end of each of the first arm and the second arm is
A lock housing attached to the other end of one of these arms is rotatably pivoted so that the other arm can be passed over and rotated, and the lock housing is attached rotatably around the arm to prevent theft. Since the anti-theft lock is configured, the size of the anti-theft lock in the stowed state can be made smaller or variable with respect to the use state, and the stowability can be enhanced.

[Brief description of drawings]

FIG. 1 is a plan view of an anti-theft lock according to this embodiment.

FIG. 2 is an enlarged sectional view taken along line AA of FIG.

FIG. 3 is a sectional view of a lock housing portion of the anti-theft lock according to the present invention.

FIG. 4 is a plan view showing a used state and a stored state 1, 2 of the anti-theft lock according to the present invention.

FIG. 5 is a cross-sectional view showing a modified embodiment of the lock housing mounting structure.

6 is a sectional view taken along line BB of FIG.

[Explanation of symbols]

 1 Anti-Theft Lock 2 First Arm 3 Second Arm 5 Lock Housing

Claims (1)

[Claims] 1. A first arm and a second arm are rotatable with respect to each other such that one end of each of the first arm and the second arm can pass over a lock housing attached to the other end of one of the arms and the other arm can rotate. An anti-theft lock, which is pivotally attached to the lock housing and is rotatably mounted around an arm.