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Automatic speed variator for bicycle

A technology of automatic shifting and mechanism device, which is applied to bicycle gear shifting mechanisms, bicycle accessories, vehicle gearboxes, etc., and can solve the problems of being too troublesome and difficult to shift gears.

Inactive Publication Date: 2007-02-07
钟志豪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] All these speed change mechanisms on bicycles must be controlled by users themselves. It is difficult and troublesome to change gears. It has been a problem for a long time.

Method used

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  • Automatic speed variator for bicycle
  • Automatic speed variator for bicycle
  • Automatic speed variator for bicycle

Examples

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Embodiment Construction

[0020] Please refer to Figure 1~ Figure 5 As shown, the present invention provides a bicycle automatic transmission mechanism device, which is to install the bicycle automatic transmission mechanism device on a bicycle. The bicycle has a front chainring 1 pivotally connected to the vehicle body and driven by a pair of pedals 11, - by means of its axle 41 (such as Figure 4 shown) to be pivotally connected to the rear wheel 4 and a chain 2 of the car body.

[0021] The bicycle automatic transmission mechanism device includes a rear tooth plate 3 pivotally connected to the bicycle, the first and second transmission plates 31, 51 that can change the disc distance according to the rotation speed, a generator 5, a belt 6, and an interactive structure 7 and a sensor 8 .

[0022] The chain 2 is sleeved between the front and rear chainrings 1 and 3 to move with each other.

[0023] The first transmission disc 31 (which can automatically change its disc distance according to the ro...

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PUM

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Abstract

The invention relates to an automatic speed changer of bicycle, wherein it is mounted on the bicycle with front tooth disc (driven by pedal), back wheel (wheel axle) and chain; it comprises a back tooth disc axially connected to the bicycle, the first and second speed-variable discs changing disc distance via the rotation speed, one generator, one sensor, one belt, and an interactive structure; the front and back tooth disc have chain sheathed between them; the first and second speed-variable discs are axially connected to the back tooth disc and back wheel; the generator is at the back wheel axle to generate via the rotation speed; the sensor with one flexible rod can control the extending of flexible rod based on the electricity of generator; the belt is sheathed between each disc distances of first and second speed-variable discs; the first and second ends of interactive structure are axially connected to the first and second speed-variable discs, while its first end via wires is connected to the flexible rod; the first end of interactive structure, via the tension of wires, controls the zoom of disc distance of first speed-variable disc, and the disc distance of second variable-speed disc of second end will be zoomed reversed.

Description

technical field [0001] The invention relates to an automatic speed change mechanism device for a bicycle, in particular to an automatic speed change mechanism device for a bicycle which can automatically perform stepless speed change. Background technique [0002] Regarding bicycles for people to ride, some will be equipped with a speed change mechanism to increase the speed of the vehicle by changing to a high-speed gear (reducing torque), or to reduce the speed of the vehicle by changing to a low-speed gear (boosting torque) but suitable for climbing. [0003] These speed change mechanisms arranged on bicycles must be controlled by users themselves, and shifting gears is difficult and cumbersome, which has been a problem for a long time. [0004] The present inventor studies with great concentration because of the deficiency of the above-mentioned prior art, and finally creates a kind of bicycle automatic transmission mechanism device of the present invention that can real...

Claims

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Application Information

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IPC IPC(8): B62M9/08B62M25/08
Inventor 钟志豪
Owner 钟志豪
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