JP3039352B2 - bicycle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compact and portable bicycle.

[0002]

2. Description of the Related Art In recent years, bicycles have been released that can be compactly carried by removing a front wheel of the bicycle and storing it inside a frame.

[0003] FIG. 3 shows a conventional bicycle, and FIG. 3
The frame 1 comprises a head tube 2 and a vertical pipe 3
And an upper pipe 4 connecting the head tube 2 and the standing pipe 3, and a lower pipe 5 connecting a lower end of the standing pipe 3 and an upper end of the head tube 2. The rear wheel 6 rotatably held at the rear portion of the frame 1 is configured to be rotated via a rotating gear 7 and a chain 8 integrated with the pedal by rotating the pedal.

[0004] The front fork 9 is held by the head tube 2, and a notch 11 is provided at the lower end of the front fork 9 for fitting a front wheel hub 10 serving as a front wheel shaft. At this time, since the front wheel hub 10 located at the center of the front wheel 12 rotates independently of the rotation of the front wheel 12, even if the front wheel hub 10 is fixed, the front wheel 12 rotates. The front wheel hub 10 and the notch 11 are fixed by tightening the quick lever 13.

At the upper end of the front fork 9, a head tube 2
Is connected to the handle 14. An upper / lower lever 15 for connecting the front fork 9 and the handle 14 is provided above the handle 14.

FIG. 4 shows a compact bicycle for transportation or the like.
To be removed from the front fork 9 and housed between the lower pipe 5 and the front fork 9. Then, the handle 14 is detached from the head tube 2 by loosening the attachment / detachment lever 15 and arranged so as to be in contact with the upper pipe 4. At this time, the handle 1 arranged above the upper pipe 4 by the fixed band 16
4 and the front wheels 12 housed in the frame 1 are fixed.

In the bicycle having the above structure, the front wheels 12 can be housed in the frame 1 to be compact.

[0008]

As described above, in a bicycle in which the front wheels are housed in a frame and can be made compact, it is necessary to lift and carry the compact bicycle when moving. Not suitable for moving in time.

An object of the present invention is to solve the above-mentioned problem, and an object of the present invention is to provide a bicycle which is compact by housing a front wheel in a frame and can be easily transported in a compact state.

[0010]

In order to solve the above-mentioned problems, a bicycle according to the present invention is provided with a detachable front wheel on a front fork, so that the rear wheel is located behind a normal front wheel mounting position and forward of a rear wheel during transportation. The frame is provided with holding means for rotatably holding the front wheel detached at the position of (2) in a state of being grounded ,
The holding means should fix the front wheel axle of the front wheel from both sides.
From the front wheel clamp that is bent so that both ends face each other
This front wheel clamp is movably attached to the frame
It is a thing.

With this configuration, even in a compact state, the front wheels are in contact with the ground and function as wheels, thereby facilitating transportation.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The bicycle of the present invention is provided with a detachable front wheel on a front fork and grounds the front wheel removed at a position rearward from a normal front wheel mounting position and forward of a rear wheel during transportation. The frame is provided with holding means for rotatably holding the front wheel removed, and the removed front wheel is rotatably held on the frame, so that it functions as a wheel even in a compact state and facilitates transportation. can do.

[0013] Further, as a holding means of the present invention, a front wheel holding tool which is bent in a U-shape so that both ends face each other so as to fix the front wheel shaft of the front wheel from both sides is movably mounted on the frame. Thus, even if the bicycle has only one lower pipe, the wheels can be brought into contact with the ground even in a compact state, and can be transported while exhibiting the function as the wheels.

Hereinafter, embodiments of the present invention will be described. (Embodiment 1 ) FIG. 1 shows a front wheel holding device 4 which is bent so that both ends face each other so as to fix the front wheel shaft from both sides as holding means.
7 shows a bicycle that can be made compact, in which the front wheel holding device 47 is provided on a bicycle frame 48 by using the same.

The bicycle frame 48 has a head tube 49 at the tip, a standing pipe 50, and an upper pipe 51 connecting the upper end of the standing pipe 50 and the upper end of the head tube 49 to each other.
And one lower pipe 52 connecting the lower pipe 50 and the lower end of the head tube 49. Here, the front wheel holding tool 47 having cutouts (not shown) at both ends of a pipe bent so that both ends face each other is provided on the lower pipe 52. At this time, the front wheel holding device 47 is held between the lower pipe 52 and the upper pipe 51 so as not to be in the way while the bicycle is running.

[0016] However, when carrying the bicycle and compact, as shown in FIG. 2 this front wheel pincer 4
7 is bent at 90 degrees to the lower pipe 52 and fixed. Then, the front wheel hubs 54 are fitted into the notches provided at both ends of the holding tool 47, and the front wheel hubs 54 are fixed from both sides. Further, the front fork 55 is removed, the handle 56 is bent, and the pipe of the saddle 57 is
By storing it in a bicycle, the bicycle can be made more compact.

[0017] This compact bicycle can be transported,
Since the front wheel 53 is rotatably held by the front wheel holding device 47, a compact bicycle can be easily transported. In addition, since a front wheel holding device 47 serving as a front wheel holding means can be provided on a general bicycle having only one lower pipe 52, a compact bicycle which can rotate and push wheels. Can be easily configured.

[0018]

As described above, according to the present invention, a compact bicycle can be easily moved.

[Brief description of the drawings]

FIG. 1 is a side view of a bicycle using a wheel holding device according to an embodiment of the present invention.

FIG. 2 is a side view of a compact bicycle using the front wheel holding device.

FIG. 3 is a side view of a conventional bicycle.

FIG. 4 is a side view of a conventional compact bicycle.

[Description of Signs ] 47 Front Wheel Clamping Tool 48 Frame 49 Head Tube 50 Upright Pipe 51 Upper Pipe 52 Lower Pipe 53 Front Wheel 54 Front Wheel Hub 55 Front Hawk 56 Handle 57 Saddle

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B62K 13/00-19/48

Claims (1)

(57) [Claims] 1. A front wheel detachable from a front fork (55).
(53) is provided, and the front wheel removed at a position behind the normal front wheel mounting position and forward of the rear wheel during transportation.
A holding means for rotatably holding the (53) in a grounded state is provided on the frame, and the holding means is bent so that both ends face each other so as to fix the front wheel shaft of the front wheel (53) from both sides. A bicycle comprising a front wheel holding device (47) , and the front wheel holding device (47) is movably mounted on a frame (48) .