JPH03132493A - Bicycle - Google Patents

Abstract

PURPOSE:To provide practicability of running up a slope easily by furnishing a spiral spring in which force can be accumulated by stamping a pedal, and transmitting the accumulated force to the front or rear wheel using a transmission means. CONSTITUTION:In advancing a bicycle only with stamping of a pedal 4, a changeover member 5 is put in No.1 condition, and the pedal 4 stamping force is transmitted to the rear wheel 10 via a driving right sprocket 7, a chain 13, and No.1 shaft 11. When the force is to be accumulated in a spiral spring 20, this changeover member 5 is put in No.2 position, and two stop members 21a, 21b are separated. In this condition the pedal 4 is stamped, and with this force of stamping, the spiral spring 20 is wound up through a driving left sprocket 6, chain 16, and No.2 shaft 14. To advance the bicycle using the accumulated force of the spring 20, the changeover member 5 is put in No.1 condition, and the force is transmitted to the No.1 shaft 11 via gears 19, 24 and a one-way clutch 18.

Description

[Detailed description of the invention] [Industrial application field] TECHNICAL FIELD The present invention relates to bicycles.

[Prior Art] Conventionally, in a bicycle, a pedal lever is rotated by pedaling the pedal with the foot, and the rotation of the pedal shaft caused by the rotation is transmitted to the wheel. In other words, bicycles were driven only by the strength of a person's legs.

[Problems to be Solved by the Invention] However, when riding uphill, relying solely on the strength of a person's legs to drive the bicycle is too much of a burden.

Therefore, an object of the present invention is to provide a bicycle that can be easily ridden uphill.

[Means for Solving the Problem] In order to solve the above object, the present invention provides a mainspring spring that can generate power by pedaling, and applies the power of the mainspring spring to at least one of the front wheels or the rear wheels. The gist is to provide a means of communication to convey information to one side.

[Function] In the present invention, for example, when going uphill, the power of the mainspring spring, which has been generated by pedaling in advance, is transmitted to either the front wheel or the rear wheel by the transmission means, and the bicycle help drive.

[Example] Hereinafter, an example embodying the present invention will be described with reference to the drawings.

As shown in Fig. 1.2, a pedal shaft 2 is rotatably supported at the center of the frame 1, and a pedal lever 3 is rotatably attached to both ends of the pedal shaft 2. A pedal 4 is rotatably attached to the tips of the left and right pedal levers 3. Further, a switching member 5 is provided on the pedal shaft 2 so as to be able to rotate integrally with the same shaft 2 and to be slidable on the same shaft 2 in the left-right direction.

A pair of left and right drive sprockets 6°7 are rotatably attached to the pedal shaft 2, and the switching member 5 is in a first state (FIG. 2) in which it is fixed to the drive cloth sprocket 7, and in a first state (FIG. 2) in which it is fixed to the drive cloth sprocket 7; A fixed second state (FIG. 3) can be assumed. In the first state or the second state, the pedal shaft 2 and the switching member 5 can rotate integrally with the driving cloth sprocket 7 or the driving left sprocket 6, respectively. Note that the first state and the second state refer to the first wire 9 connected to the right handle grip 8.
Switching is possible by moving the switching member 5 at.

As shown in FIG. 4, the first support shaft 1 is the support shaft of the rear wheel 10.
A driven sprocket 12 is fixed to 1, and a chain 13 is stretched between the driven sprocket 12 and the driving cloth sprocket 7.

The rotation of the pedal shaft 2 in the first state is limited to the rotation of the driving cloth sprocket 7 in the direction of arrow A (FIG. 4), which is caused by the rotation of the rear wheel 10.
It is now possible to communicate.

On the other hand, as shown in Figs. 2 and 4, the pedal shaft 2 and the rear wheel IO
An auxiliary sprocket 15 is provided on the second support shaft 14 supported behind the driving left sprocket 6 between the auxiliary sprocket 15 and the driving left sprocket 6. ing. or,
The auxiliary sprocket 15 is equipped with a one-way clutch 17 that transmits only rotation in the direction of arrow B (FIG. 5) to the second support shaft 14.
is provided. A drive gear 19 and a mainspring spring 20 are provided on the second support shaft 14 on the left side of the auxiliary sprocket 15.
It is designed to be wound when the support shaft 14 rotates in the direction of arrow C (FIG. 5).

A pair of left and right stopper members 2 are provided at the left end of the second support shaft 14.
1a and 21b are provided, and both stopper members 21a
, 21b, the second support shaft 14 is locked unrotatably. Note that both stopper members 21a and 21b
The engagement and disengagement of is operated by a second wire 23 connected to the left/S handle grip 22.

As shown in FIGS. 2 and 4, a one-way clutch 18 is provided on the left end of the first support shaft 11, and a third support shaft 25 is provided on the left side of the one-way clutch 18. A driven gear 24 is provided on the third support shaft 25, and this driven gear 24 meshes with the drive gear 19. The driven gear 24 transmits the rotation of the drive gear 19 to the third support shaft 25, and the rotation of the third support shaft 25 is transmitted to the drive gear 1.
9 is not transmitted. Further, the one-way clutch 18 is configured to transmit only the rotation of the first support shaft 11 in the direction of arrow D (FIG. 7) to the third support shaft 25.

Now, as shown in FIG. 4, when the bicycle of this embodiment is moved forward using only the pedals 4, the switching member 5 is placed in the first state. When the pedal 4 is pedaled in this state, the rear wheel 10 rotates in the direction of the arrow E via the driving cloth sprocket 7, the chain 13, the driven sprocket 12, and the first support shaft 11. At this time, the rotation of the first support shaft 11 is controlled by the one-way clutch 18 and the third
Although it is transmitted to the support shaft 25, it is not transmitted to the drive gear 19 due to the action of the driven gear 24. In addition, at this time, both stopper members 21a and '21b may or may not be engaged.

As shown in FIG. 5, when winding the mainspring spring 20, the switching member 5 is placed in the second state, and both stop members 21a and 21b are placed in a separated state. When you step on the pedal 4 in this state, the drive left sprocket 6, chain 16,
A mainspring spring 20 is wound around the auxiliary sprocket 15 and the second support shaft 14. At this time, the driven gear 24 and the third support shaft 25 rotate via the drive gear 19, but the first support shaft 11 does not rotate due to the action of the one-way clutch 18. Therefore, the rear wheel 1O does not rotate in the backward direction.

As shown in FIG. 6, when moving the bicycle forward using only the pedals 4 with the mainspring spring 20 wound, the switching member 5 is set to the first state, and both stopper members 21
a and 21b are engaged to lock the second support shaft 14 unrotatably. In this state, the pedals 4 are pedaled in the same way as when the bicycle is moved forward using only the pedals 4.

As shown in FIG. 7, in addition to the pedal 4, there is a spring spring 20.
When moving the bicycle forward using the remaining force, the switching member 5 is set to the first state and both stopper members 2
1a and 21b are disengaged and the pedal 4 is pedaled. By disengaging both stopper members 21a and 21b, the mainspring spring 20 is rewound, the second support shaft 14 rotates in the direction of arrow F, and the drive gear 19, driven gear 24, third support shaft 25, and one-way Rear wheel 1 via clutch 18 and first support shaft 11
0 rotates in the direction of arrow E. On the other hand, the rear wheel 10 can also be rotated in the direction of arrow E by pedaling the pedals 4. Note that even if the second support shaft 14 rotates in the direction of arrow E, the auxiliary sprocket 15 does not rotate due to the action of the one-way clutch 17.

As shown in FIG. 8, when pushing the bicycle back by hand, such as when putting the bicycle into a garage, the rear wheel 10 is
The first support shaft 11 rotates in the direction of the arrow and the first support shaft 11 rotates in the same G direction, but due to the action of the one-way clutch 18, the third support shaft 25
The rotation of the first support shaft 11 is not transmitted to. Therefore, when backing up the bicycle, the mainspring spring 2 of the second support shaft 14
0 never becomes resistance. Note that the switching member 5 may be in either the first state or the second state, and both the stopper members 21a and 21b may or may not be engaged. Further, even if the pedals 4 are rotated in the opposite direction to the direction in which the bicycle is moved forward, the first support shaft 11 and the second support shaft 14 will not rotate. Therefore, there is no effect on the rotation of the rear wheel IO or the main spring spring 20.

When using the bicycle of this embodiment, start with pedal 4.
Move the bicycle forward using the chisel, and after the speed has increased to a certain extent,
By operating the right handle grip 8, the switching member 5 is placed in the second state, and the mainspring spring 20 is wound. When the mainspring spring 20 is fully wound, the right handle grip 8 is operated again to set the switching member 5 to the first state, and the left handle grip 22 is operated to engage both stop members 21a and 21b, and the mainspring The bicycle is moved forward using only the pedals 4 while keeping the spring 20 fully wound. For example, when you come to an uphill slope, by operating the left handle grip 22, both stop members 21a and 21b are disengaged, and the mainspring spring 20 is released.
The remaining power is transmitted to the rear wheel 10, and the bicycle is moved forward by pedaling the pedals 4.

In this way, the bicycle of this embodiment can utilize the force of the mainspring spring 20 in addition to the force of pedaling with the pedals 4.
You can travel uphill easily.

In addition, in the above embodiment, if the number of teeth of the drive left sprocket 6 is 35, the number of teeth of the auxiliary sprocket 15 is 45, the number of teeth of the drive gear 19 is 50, and the number of teeth of the driven gear is 25, then the pedal 4 If the pedal shaft 2 is rotated 30 times by pressing the button, the main spring 20 will be wound approximately 23 times. When the vehicle runs using the remaining force of the wound mainspring spring 20, the driven gear rotates approximately 46 times, and when the rear wheel rotates once, it is 2M
If it continues, the bicycle will travel approximately 93M.

Further, the present invention is not limited to the above embodiments, but includes, for example,
The remaining power of the mainspring may be used as a drive source to be transmitted to the front wheels.

[Effects of the Invention] As described in detail above, according to the present invention, it is possible to easily travel uphill, for example.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the bicycle of the present invention, Fig. 2 is a plan view showing the case where the rotation of the pedal shaft is transmitted to the driving right sprocket, and Fig. 3 is a partial plan view showing the case where the rotation of the pedal shaft is also transmitted to the driving left sprocket. Figure 4 is an explanatory diagram showing the case where the bicycle is moved forward using only the pedals, Figure 5 is an explanatory diagram showing the case where the mainspring is wound on the bicycle, and Figure 6 is an explanatory diagram showing the case where the mainspring is wound on the bicycle. FIG. 7 is an explanatory diagram showing the case where the bicycle is moved forward using only the pedals, FIG. 7 is an explanatory diagram showing the case where the bicycle is moved forward using the remaining force of the mainspring spring, and FIG. 8 is an explanatory diagram showing the case where the bicycle is moved backward. Rear wheel 10, first support shaft 11, second support shaft 14, drive gear 19
, mainspring spring 20, driven gear 24, third support shaft 25°

Claims (1)

[Claims] 1. A transmission means for transmitting the power of the main spring (20) to at least one of the front wheels or the rear wheels (10), which is provided with a mainspring spring (20) that can generate power by pedaling the pedal (4). (11, 14, 19, 24
, 25).