JP3496988B2 - bicycle - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for preventing theft of a bicycle. [0002] Conventionally, various locking devices have been used to prevent theft of a bicycle. A typical example is to lock a chain or a rope between a body frame and a rim of a wheel. For example, a locking device using a rope is provided with a locking fitting which is fitted to both ends of a synthetic resin rope, passes the rope between a body frame and a rim of a wheel, and connects both ends. They are combined and locked, which prevents rotation of the wheels and prevents theft. [0004] When there are structures such as fences nearby,
A rope is also wrapped around the structure and the bicycle frame or wheel rim to lock the bicycle to the structure. [0005] In addition, there is a type in which a rigid molded body made of metal or synthetic resin is used in place of the rope, but basically, a detachable locking device is attached each time to prevent rotation of the wheel. It is intended to prevent the rider from riding on it, or to lock onto a structure to prevent it from riding. [0006] Such a locking device cannot be unlocked by anyone other than the locking person, and thus has a prima facie effect in terms of preventing theft. However, in such a locking device, the locking device must be carried at all times when the user gets on the vehicle. Then, after that, the bicycle must be parked without the locking device. [0008] In addition, when a lock device using a rope is actually transported, the lock device using a rope is relatively small and can be easily carried because it is relatively small, but the rope can be easily cut with a simple tool. Has a deterrent effect, but thieves remain worried about theft. On the other hand, in the case of a locking device using a rigid body, the locking device cannot be removed unless it is unlocked.
The anti-theft effect is great, but it is cumbersome to carry. SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a locking device that can be easily and securely locked without a hassle of carrying at all times and has a large anti-theft effect .
Aims to provide a bicycle . [0010] The inventor of the present invention pays attention to a saddle which is always required when riding a bicycle, and effectively prevents theft by putting the saddle in a state where no one can ride. Focusing on what can be done, the present invention has been completed. That is, the bicycle of the present invention includes a saddle,
A saddle support pipe that forms part of the body frame, and a front
The saddle is tiltably supported on the saddle support pipe.
Lock the support member and the tilted saddle, and
A lock mechanism for automatically locking the lock state.
The locking mechanism includes a saddle tilted and the saddle support pie.
Front, rear and top are surrounded by the pump and the support member
It is located in a limited space . According to the present invention, the lock mechanism is provided on a part of the main body frame.
It is provided fixedly, and it is not necessary to attach / detach the locking device itself every time a bicycle is parked or boarded, unlike a conventional locking device. When the bicycle is parked, when the saddle is tilted, the lock mechanism automatically locks the saddle in a tilted state. In this state, it is apparent that the user cannot ride the bicycle at a glance. The lock mechanism in the locked state can be unlocked by a dedicated key, and can be put on the saddle. FIG. 1 is a perspective view showing a main part of a bicycle provided with a locking device according to an embodiment of the present invention, FIG. 2 is a front view showing a saddle supporting mechanism and a locking mechanism, and FIG. FIG. 4 is a diagram illustrating an internal structure of a lock mechanism, FIG. 5A is a perspective view of a bicycle in a normal riding state,
FIG. 5B is a perspective view of the bicycle in which the saddle is tilted to make it impossible to ride. As shown in FIGS. 1 and 2, the saddle 1 is
A locking member 4 at a lower portion of the saddle 1 is pivotally supported by a support member 3 at an upper end of the saddle support pipe 2 so that the entire saddle 1 is tiltably supported by the support pipe 2. The saddle 1 is in the state shown in FIG.
When the vehicle is in a state in which the vehicle can be ridden as shown in (a), the rear portion of the locking member 4 of the saddle 1 is locked by the spring-equipped hook 5 attached to the support member 3 of the saddle support pipe 2, and the saddle 1 is Don't lean. To shift the saddle 1 from the state shown in FIG. 2 to the state shown in FIG. 1, ie, the state shown in FIG. Unlock the rear part of the member 4 and tilt the saddle 1 forward. The operation of the lock mechanism 6 when the saddle 1 is tilted forward will be described with reference to FIGS. 3 (a) shows the same state as FIG. 2, and FIG. 3 (b) shows a state in which the locking of the locking member 4 of the saddle 1 by the hook 5 with the spring is released. (c) shows a state where the saddle 1 is tilted forward. As shown in FIG. 4, the lock mechanism 6 has a moving piece 9 urged by a compression spring 8 inside a casing 7, and is formed on the engaging member 4 of the saddle 1 through an opening 7a of the casing 7. When the locking piece 4a is inserted, the protrusion 9a of the moving piece 9 protrudes into the locking hole 4b of the locking piece 4a,
The locking piece 4 a is configured to be locked by the moving piece 9. By the action of the lock mechanism 6, when the saddle 1 is tilted forward as shown in FIG. 3C, the saddle 1 is locked in this state. In this state, as shown in FIG. 5 (b), it can be seen at a glance that the bicycle cannot be ridden, and the anti-theft effect is great. When the key 10 is pushed through the key hole 7b of the casing 7 of the lock mechanism 6 while the saddle 1 is locked, the moving piece 9 is pushed and the projection 9a is pushed out of the locking hole 4b of the locking piece 4a. Exit and the lock is released. In order to release the lock so that the rider can ride on the bicycle, the lock may be released and the saddle 1 may be returned to the state shown in FIG. The above embodiment is an example in which the saddle is tilted forward. However, when the saddle is tilted backward or left and right, a similar locking mechanism is provided so that the saddle is tilted. Can be locked. According to the present invention, the following effects can be obtained. (1) Since the locking device is provided fixed to the bicycle, it is not necessary to attach and detach the locking device every time the bicycle is parked or boarded. (2) The saddle can be tilted with a simple operation.
Locking is simple and secure because the saddle is automatically locked when the saddle is tilted. (3) At a glance, it is apparent that the user cannot ride a bicycle in the locked state, and the anti-theft effect is great.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a main part of a bicycle provided with a locking device according to an embodiment of the present invention. FIG. 2 is a front view showing a saddle support mechanism and a lock mechanism. FIG. 3 is a diagram illustrating the operation of a lock mechanism. FIG. 4 is a diagram showing an internal structure of a lock mechanism. 5 (a) is a perspective view of a bicycle in a normal riding state, and FIG. 5 (b) is a perspective view of a bicycle in a state where the saddle is tilted to disable riding. DESCRIPTION OF SYMBOLS 1 Saddle 2 Saddle support pipe 3 Support member 4 Lock member 4a Lock piece 4b Lock hole 5 Hook with spring 6 Lock mechanism 7 Casing 7a Opening 7b Keyhole 8 Compression spring 9 Moving piece 9a Projection 10 Key

Claims (1)

(57) [Claims] [Claim 1] A saddle and a part of a main body frame are formed.
A saddle support pipe, and the saddle
A support member for tilting and supporting the saddle in a tilted state;
Lock and lock this lock automatically
And a lock mechanism, wherein the lock mechanism is in a tilted state.
Dollar and the saddle support pipe and the support member
In a limited space surrounded by
Turning.