JPS581567Y2 - Bicycle lock with safety device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a bicycle lock equipped with a safety device.

Certain defects have been pointed out in the past with locks that are attached to the forks of the front and rear wheels of a bicycle and whose locks move forward and backward toward the spokes.

In other words, if a human body or baggage comes into contact with a closed bicycle door, the bicycle locks unexpectedly even when the bicycle is in motion, resulting in the bicycle falling over and causing a serious accident.

Therefore, the present invention aims to solve the above-mentioned problems and provides a bicycle lock in which a safety device is provided on the lock itself, regardless of the structure of the main body.

The following is a brief description of the drawings, but the examples do not limit the scope of the invention.

The cylindrical closure 2 inserted through the lock body 1 is pushed out against the spring 3 toward the left spoke (not shown) in Figure 1, and the lower part of the implanted pin 4 becomes the locking piece. 5 and becomes locked, and when the lock is released with the key 6, the closing mechanism 2 instantaneously rebounds back due to the elasticity of the spring 3, and the lock is opened.

Here, a safety device 7 is incorporated in the right half of the closing door 2, that is, a portion that protrudes from the lock body 1 in the unlocked state, and one end portion 9a that can freely come out and retract from an opening 8 made in the closing door of this portion.
A locking piece 9 having a diameter is pivotally attached to the mount 11 by a pin 10.

The other end portion 9b of the hooking piece can be freely retracted and retracted from the opening 12 in the shape of an opening.

Reference numeral 13 denotes a spring that fits into a protrusion 9C protruding between the pin 10 and one end 9a with a tapered lower edge, and is tensioned between the inner wall surface of the closure 2 and the latching piece. The one end portion 9a
The function is to always urge the member in the direction of protruding from the aperture 8.

The details of the mount 11 and the latching piece 9 are as shown in Figures 2 and 3.
A latch piece is held between the U-shaped legs 22 provided on the stopper 11, and a tongue piece 23 protruding from the periphery of the stopper 11 in the same direction as the legs is attached to the corresponding part of the closure 2. It fits into the recessed notch 24 and prevents the rotation of the crimped part 2.
5 prevents separation in the axial direction.

FIG. 4 shows another embodiment.

In the same figure, the holder 11 is made of flexible synthetic resin and the opening 1
2' is a U-shaped opening facing the leg side, and the leg 22
' has a retaining portion 26 on its inner surface.

The latching piece 9 has a retaining protrusion 27 on its side, which is attached to the leg 2.
It is forcibly fitted into the engagement recess 26 by utilizing the elastic deformation of 2'.

Next, to explain how to use the lock of the present invention, in the unlocked state shown in Fig. 1, while pressing down the other end 9b of the latch piece 9 protruding from the locking piece 11 with your fingertips, move the closing lock 2 to the left in the figure. It can be locked by pushing it out, and at this time the locking piece 9 is slightly rotated clockwise around the pin 10 against the spring 13.
One end 9a thereof is pulled up into the closed office.

That is, the one end is the side wall of the lock body 1, in this case the plate piece 2.
The function of preventing the closed door from moving to the left by contacting the protruding portion of No. 8 is released, allowing the door to move to the left, that is, to lock the door.

On the other hand, when opening the lock, the operation can be performed in exactly the same way as a conventional lock of this type.

In other words, the lock can be opened normally using Ja6, and in this case, since the lower end edge of one end 9a of the locking piece 9 is tapered, there is no problem in moving the closing door 2 to the right.

As described above, the present invention has a simple structure in which the safety device is built into the part of the closed door that protrudes in the unlocked state. Since it is located nearby, it is extremely easy to use, and its practical effects are significant and significant.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a longitudinal sectional view, Fig. 2 is a plan view of the safety device, Fig. 3 is a bottom view, and Fig. 4 is a bottom view.
The figure is a plan view of a safety device in another embodiment. 1...Lock body, 2...Closed, 7...
...safety device, 8...hole opening, 9...
Latching piece, 9a...One end, 9b...Other end, 11...Closing lid, 12.12'...
・Opening hole, 13... Spring, 22゜22'...
...U-shaped legs.

Claims (1)

[Scope of utility model registration request] In a lock in which a closing mechanism 2 is removably inserted through the lock body 1 and can be engaged and detached by an internal mechanism, one end 9a of the locking piece 9 on the lock body side can be freely inserted into and retracted from the opening 8 of the closing mechanism. Spring 1
3, and the other end 9b of the locking piece is pivotally supported by the approximately U-shaped legs 22 and 22' of the mount 11 so that it can freely enter and retract into the openings 12 and 12' of the mount 11. 7 is fitted into the cylindrical closing part 2 of the part that protrudes in the unlocked state, and by pressing the other end 9b of the locking piece 9 toward the inside of the lock, one end 9a can be closed. A bicycle lock equipped with a safety device, characterized in that the bicycle lock is housed inside the bicycle lock 2, thereby making it possible to move the locking mechanism 2 in the locking direction.