Rear-pedaling standing type bicycle structure | Patent Publication Number 20090273155
US 20090273155 A1The present invention discloses a rear-pedaling standing type bicycle structure having a driving means installed at a front end of a bicycle frame and proximate to a corresponding line of front and rear wheels, and pedals pivotally coupled to both lateral sides of the front end of the bicycle frame for up and down movements. The driving means can be driven up and down alternately by the left and right pedals, and a link wheel is provided for transmitting kinetic forces to the rear wheel to drive the bicycle, so that the bicycle can be operated and driven in a special unique way to achieve the effects of expanding the exercising range and giving more fun to the exercise and game.
- 1. A rear-pedaling standing type bicycle structure, comprising:na front wheel, installed at the front of a bicycle frame through a front tube with a front fork, and a vertical tube with a handle;a rear wheel, installed at the rear of the bicycle frame, and having a flywheel installed at an axle of the rear wheel;a shaft, installed at a position proximate to the front of the bicycle frame, and having a crankset installed at the shaft, and a driving means of a transmission module installed on both ends of the shaft and with an included angle of 180 degrees;a driven gear wheel, installed at a position proximate to the rear of the bicycle frame; anda first driving chain, installed between the driven gear wheel and the crankset of the driving means;characterized in that pedals are pivotally coupled on both lateral sides of the front of the bicycle frame and swung up and down to drive the crane and the axle of the driving means to rotate; and the crankset of the driving means is installed on a corresponding line of the front and rear wheels, such that the left and right pedals are disposed equidistantly from both lateral sides of the corresponding line of the front and rear wheels; and a link wheel is installed between the crankset of the driving means and the driven gear wheel and driven precisely by the external side of the first driving chain; and a transmission wheel is installed coaxially at another end of the link wheel, and a second driving chain is installed around and between the transmission wheel and a flywheel of the rear wheel axle.
1. Field of the Invention
The present invention relates to a rear-pedaling standing type bicycle structure, more particularly to a rear-pedaling standing type bicycle structure that provides a simple, easy, convenient and unique way of operating a bicycle to achieve the effects of expanding the exercising range and giving more fun to the exercise and game.
2. Description of the Related Art
In general, a bicycle is driven to move forward by pedaling on a pair of pedals installed with an included angle of 180 degrees for a circumferential movement, and wheels of the bicycle are driven by related transmission components (including a crankset, a chain and a flywheel, etc), and the wheels keep rotating to drive the bicycle body forward. Further, a general bicycle has a seat cushion provided for a bicycle rider to sit, so that the body weight of the rider is supported by the seat cushion to allow both legs to apply a sufficient force for a smooth and safe circumferential movement of the pedals. Although the traditional bicycles can achieve the transportation purpose, the rider's upper body movement is limited by the rider's sitting on the seat cushion, and the exercise effect is not as expected, and the fun of riding the bicycle is not as good. Traditional bicycles no longer provide a good motive for riders to ride the bicycles.
Therefore, it is a primary objective of the present invention to provide a rear-pedaling standing type bicycle structure, wherein a driving means is installed at a front end of a bicycle frame proximate to a corresponding line of the front and rear wheels, and pedals are pivotally coupled to both lateral sides of the front end of the bicycle frame and moved up and down, such that when the left and right pedals are moved up and down alternately, a crankset of the driving means is rotated in an opposite direction, and the kinetic force of a link wheel is transmitted to a rear wheel to move the bicycle forward, and the rider can pedal by both legs while standing. The operation of the bicycle not only achieves the effect of expanding the exercise range, but also provides a unique way of operating and riding the bicycle to achieve the transportation purpose as well as the fun of riding a bicycle.
Another objective of the present invention is to provide a rear-pedaling standing type bicycle structure, wherein a crankset of the driving means is installed on a corresponding line of the front and rear wheels and the left and right pedals for driving the crankset are disposed equidistantly from each other and on both lateral sides, and the distance between the left and right pedals can be reduced substantially, and a force applying point for a rider's left and right legs to pedal can be situated evenly on both lateral sides of the corresponding line of the front and rear wheels. As to the standing rider who steps on the pedals, the pedal movement can be very smooth, convenient, natural and comfortable, and the center of gravity can be maintained on the corresponding line of the front and rear wheels to achieve the stable, deviation free and safe riding effects.
To make it easier for our examiner to understand the objects, characteristics and effects of the present invention, we use preferred embodiments accompanied with related drawings for the detailed description of the present invention as follows:
Referring to
A driven gear wheel 21 is installed at a rear end of the bicycle frame 10, and a link wheel 22 is installed between the crankset 202 of the driving means 20 and the driven gear wheel 21, and a first driving chain 23 is installed between the crankset 202 and the driven gear wheel 21, such that the link wheel 22 is driven by the external side of the first driving chain 23 to rotate in an opposite direction. Further, a transmission wheel 24 is installed coaxially at another end of the link wheel 22, so that a second driving chain 25 can transmit a kinetic force to a flywheel 26 of a rear wheel axle 141.
Since the left and right pedals 30 are swung to move up and down alternately with a turning point of a pivot 301, a rider can apply a force to the driving member 204 and the crane 203 to rotate in an opposite direction when stepping on the left and right pedals 30 by both legs and while standing, such that the shaft 201 and the crankset 202 are driven to rotate in opposite directions. In other words, the crankset is rotated in a direction opposite to that of a general bicycle. The external side of the first driving chain 23 installed around and between the crankset 202 and the driven gear wheel 21 is provided for driving the link wheel 22 (which is installed below the first driving chain 23 as shown in
With the structure of the invention as shown in
The rider's legs step on the left and right pedals 30 alternately while standing, so that the crankset 202 of the driving means 20 is rotated in an opposite direction to drive the rear wheel 14, and drive the bicycle body to move forward smoothly. The operation of the bicycle extends the exercising range and gives more fun to the exercise and game.
Since the crankset 202 of the driving means 20 is installed on the corresponding line of the front and rear wheels 11, 14, the left and right pedals 30 can be disposed equidistantly from both lateral sides of the corresponding line of the front and rear wheels 11, 14 to substantially reduce the distance between the left and right pedals 30 and the force applying point of the rider's left and right legs to pedal is disposed evenly on the lateral sides of the corresponding line of the front and rear wheels 11, 14. As to the standing rider, the pedaling operation made by both legs is very smooth, natural convenient and comfortable. The center of gravity can be maintained on the corresponding line of the front and rear wheels 11, 14 to give a stable, deviation free and safe riding effect.
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