JPH0781657A - Wheel having prime mover for bicycle - Google Patents

Abstract

PURPOSE:To remodel the existing bicycle extremely easily into a bicycle having a prime mover at any place without remodeling the existing bicycle sharply. CONSTITUTION:A wheel has a hub shaft 1 fixed to mutual claws of a bicycle frame so as to be mountable and demountable freely and a hub 2 by which a single collar part 13 is formed expansively in a disk shape and a rim 3 is arranged in a central part of the frame by fixing the whole spokes 16 on the tip of the collar part, and has a gear 4 fixed to the hub by being arranged concentrically with the hub shaft 1, a baseplate 5 installed between the mutual claws together with the disk shape collar part 13 by being pivoted on the hub shaft in an opposed condition to the disk shape collar part 13, an engine 6 installed on the baseplate 5 so as to drive the gear 4 by a driving gear 22 and a whirl-stop material 7 to fix the baseplate 5 to the frame.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel forming a bicycle with a prime mover, and more specifically, to a drive prime mover for a bicycle which is driven by a bicycle wheel which is driven only by a person's physical strength. And a wheel with a prime mover for a bicycle that can be modified in a state in which the wheel is attached.

[0002]

2. Description of the Related Art Conventionally, when modifying an existing bicycle into a bicycle with a prime mover, for example, the prime mover is fixed to a frame,
It was necessary to attach sprockets and V-pulleys to the wheels, and then connect the prime mover and the wheels with a chain or V-belt.

[0003]

However, in this conventional method, the bicycle frame must be modified to mount the prime mover, and the wheels must have sprockets, V-pulleys, etc. mounted at the same center of rotation. There is a problem that the assembly work on site is difficult and the work time is long, so that the remodeling cost is also high. The present invention has been made in view of the above-described problems of the related art, and an object thereof is to remodel a bicycle with a prime mover very easily anywhere without significantly modifying an existing bicycle. The object is to provide a motorized wheel for a bicycle, which is made possible.

[0004]

Means for Solving the Problems In order to achieve the above object, according to a wheel with a motor for a bicycle of the present invention, a hub axle detachably fixed to the pawls of a bicycle frame; and one collar portion in a disk shape. A hub that is enlarged and has all the spokes fixed to the front ends of the flanges to dispose the rim in the center of the bicycle frame; a gear that is arranged concentrically with the hub shaft and fixed to the hub; A base plate pivotally supported by a hub shaft in a state of facing the disc-shaped collar portion and mounted together with the disc-shaped collar portion between the pawls; a gear mounted on the base plate and fixed to the hub by a drive gear A prime mover that drives
And a stopper for fixing the base plate to the frame.

[0005]

Since the bicycle prime mover wheel of the present invention is configured as described above, the existing bicycle wheel together with the hub axle is removed from the bicycle frame pawl, and the bicycle with the hub axle is removed. Fixing the hub axle of the wheel and fixing the base plate with the prime mover to the frame with the anti-rotation material to remodel the existing bicycle with the prime mover and the wheels driven by the prime mover attached. You can When the prime mover is an engine, fuel is supplied from the fuel tank, and when the prime mover is an electric motor, power is supplied from the battery so that the gear fixed to the hub is driven by the drive gear so that the bicycle can be driven by power. can do.

[0006]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a sectional view showing a wheel with a prime mover for a bicycle according to the present embodiment, FIG. 2 is a side view of the same as above, and FIG. 3 is an overall view showing a mounted state of the same.

First, the configuration of the embodiment will be described. The bicycle-equipped motor vehicle wheel A of this embodiment includes a hub axle 1 and a hub 2.
The rim 3, the gear 4, the base plate 5, the engine 6, and the detent member 7 are the main components. Reference numeral 8 in the drawing denotes a frame of the bicycle 9.

The hub axle 1 has the same tightening length as the hub axle (not shown) of the conventional wheel mounted on the rear wheel side pawls 10, 10 of the frame 8 and has the same diameter on both sides thereof. A screw portion 11 is provided.

In the hub 2, the hub body 12 is formed shorter than the hub body of a conventional wheel, and is formed on one end side of the hub body 12 so as to be expanded into a disk shape having a diameter of about 3/4 of a rim diameter described later. A collar portion 13 is provided, and an outer peripheral edge of the collar portion 13 is
A standing edge portion 14 having an inner surface parallel to the axial center of the hub body 12 is provided around. Reference numeral 15 in the drawing denotes a free wheel provided on the hub body 12.

The rim 3 is a spoke 1 made of synthetic resin.
6 is integrally formed with the rim 3, and the base end of the spoke 16 is fixed to the standing edge portion 14 with the bolt 17 so that when the hub axle 1 is mounted on the rear wheel side pawls 10, 10, the rim 3
Is arranged in the center of the frame 8. Reference numeral 18 in the drawing denotes a tire attached to the rim 3.

The gear 4 is an internal gear formed in a ring shape, and is fixedly fitted to the inner surface side of the upright portion 14 of the hub 2.

The base plate 5 serves as a mounting member for the engine 6, and has a diameter substantially the same as that of the flange portion 13,
The outer peripheral edge portion 19 is bent all around so as to cover the end portion of the rising edge portion 14 of the flange portion. The base plate 5 has a shaft supporting portion 20 for holding the hub shaft 1 penetrating through the center thereof, and is arranged in a state of facing the collar portion 13. 2a in the figure,
Reference numeral 5a is a nut that holds the hub 2 and the base plate 5 at predetermined positions, and the distance between the outer sides of the nuts 2a and 5a is substantially the same as the inner width of the rear wheel side pawls 10 and 10. Is set to.

The engine 6 is fixed to the base plate 5 via a bracket 21, and a drive gear 22 connected to a centrifugal clutch (not shown) is projected toward the gear 4 side.
The gear 22 is connected to the gear 4 via an idle gear 23 pivotally supported by the base plate 5. Reference numeral 24 in the figure denotes a fuel tank fixed to the inside of the base plate 5, and is connected to a carburetor 25 of the engine 6 by a pipe (not shown). In the figure, 26 is a throttle lever,
It is detachably attached to the handle 27 by a band.

The anti-rotation member 7 locks the base plate 5 by the torque so that the base plate 5 does not rotate while the engine 6 is driven. The band portion is locked to the frame 8 by bolts. It is something that is fixed. In the figure, 28 is a chain connected to the large sprocket wheel of the gear crank 29,
30 is a brake lever.

As shown in FIGS. 1 and 2, the above components are integrally assembled as a motor-equipped wheel A. Therefore, in the motorized wheel A of this embodiment, first, the chain 28 is removed from the free wheel of the rear wheel, and then the rear wheel is removed from the pawl 10 together with the hub axle.

After that, the hub axle 1 of the motor-equipped wheel A is mounted on the rear wheel side pawls 10, 10 and the chain 28 is connected to the free wheel 15 to adjust the tension thereof and the nut 3
Tighten 1 to fix. After fixing the hub axle 1, the detent member 7 is locked to the frame 8 and fixed to the base plate 5 with bolts.

The throttle wire is routed along the frame 8 and the throttle lever 26 is fixed to the handle 27. By the above work, the conventional bicycle can be converted into a bicycle with a motor.

Next, after the stand is set up and the wheels are floated, the throttle lever 26 is opened to open the starter 3.
2 is pulled and the engine 6 is started. After that, the throttle lever 26 is squeezed and the stand is tilted down to get on the vehicle.

Although the embodiment of the present invention has been described above, the specific configuration of the present invention is not limited to this embodiment, and the present invention is applicable even if there are design changes and the like within the scope not departing from the gist of the invention. Included in the invention.

For example, in the embodiment, the prime mover is explained as an engine, but the present invention is not limited to this, and an electric motor may be used. In this case, the battery may be placed at the position of the fuel tank 24. Further, a solar cell may be provided.

The fuel tank and the engine may be attached at arbitrary positions, and the fuel tank and the like may be separately provided on the frame side.

Further, although the motor-equipped wheel has been described for the rear wheel, it may be formed for replacement of the front wheel.

The gear 4 can also be formed by a timing belt or the like.

It is also possible to provide a switch or the like for detecting pedaling and to transmit power only while pedaling by a signal from this switch or the like.

[0025]

As described above, the bicycle prime mover wheel of the present invention has the above-described structure,
The effect of being able to remodel a bicycle with a prime mover very easily anywhere by simply replacing the existing wheels without making a major modification to the existing bicycle can be obtained.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a wheel with a motor for a bicycle according to an embodiment of the present invention.

FIG. 2 is a side view showing a wheel with a motor for a bicycle according to an embodiment.

FIG. 3 is an overall view showing a mounted state of the bicycle motor-equipped wheel of the embodiment.

[Explanation of symbols]

 A Wheel with a motor for a bicycle 1 Hub shaft 2 Hub 3 Rim 4 Gear 5 Base plate 6 Engine (motor) 7 Non-rotating material 8 Bicycle frame 10 Rear wheel side pawl 13 Collar portion 16 Spoke 22 Drive gear

Claims (1)

[Claims] 1. A hub axle detachably fixed to the claws of a bicycle frame; one collar portion is enlarged and formed into a disk shape, and all spokes are fixed to the tip of the collar portion to attach the rim to the bicycle frame. A hub arranged in the central part of the hub; a gear arranged concentrically with the hub shaft and fixed to the hub; and a hub axially supported by the hub shaft in a state of facing the disk-shaped flange part of the hub together with the disk-shaped flange part. A base plate mounted between the pawls; a prime mover mounted on the base plate to drive a gear fixed to the hub by a drive gear; and a detent member for fixing the base plate to a frame. A motorized wheel for a bicycle, which is characterized by