CN2296849Y

CN2296849Y - Bicycle chain wheel

Info

Publication number: CN2296849Y
Application number: CN 97222958
Authority: CN
Inventors: 徐洪元
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-05-22
Filing date: 1997-05-22
Publication date: 1998-11-11
Anticipated expiration: 2007-05-22

Abstract

The utility model relates to a wheel disk of a back-riding type bicycle. The wheel disk of a back-riding type bicycle is suitable for being used a two-wheel bicycle and a tricycle. The wheel disk of a back-riding type bicycle has the composing and the feature that a plurality of equal circular idler gears are added to the periphery of a driving gear disk of a bicycle, the driving gear disk of the bicycle can not directly drive a chain, the chain is driven by the idler gears, and the bicycle is caused to forwards run. The wheel disk of a back-riding type bicycle has the advantages that when people ride the bicycle, the gravity center of the people is relatively backward, the comfortable feeling and the safety performance of riding the bicycle are increased; meanwhile, the efficiency of riding the bicycle is also enhanced.

Description

Back-pedal formula bicycle wheel disc

The utility model relates to a kind of back-pedal formula bicycle wheel disc, is specially adapted to two wheel bicycles and three-wheel vehicle and uses.

Present bicycle wheel disc is positive riding type bicycle wheel disc, it is to turn the weldering roped party by driving tooth wheel disc and pin to become, driving tooth wheel disc periphery has gear, turn when the driving tooth wheel disc is rotated when people firmly scrunch pin, the gear on the driving tooth wheel disc will drive chain advances bicycle, and this positive riding type bicycle wheel disc has a lot of shortcomings, the one, as people by bike during double ring ahead, the center of gravity of human body forward, people's head is positioned at the forefront of health sometimes, is easy to cause danger; The 2nd, because firmly just pedaling the health that makes the people is arciform, so for a long time by bike, can cause health deformation and fatigue; The 3rd, because the reach of the center of gravity of human body can make rear wheel and ground-surface friction force reduce, cause energy dissipation to reduce efficient by bike.

The purpose of this utility model is exactly for solving a kind of simple back-pedal formula bicycle wheel disc of above-mentioned shortcoming design-calculated.

The utility model is to realize like this, back-pedal formula bicycle wheel disc, be by the driving tooth wheel disc, combine with break-in mesomerism gear assembly two parts, the driving tooth wheel disc is positioned at the center of mesomerism gear assembly, the mesomerism gear assembly, be by a plurality of garden shape mesomerism gears that are equal to, form with the metal sheet support, on the metal sheet support, leave foramen primum and positioning groove, so that accurately be fixedly connected, so just formed bicycle driving tooth wheel disc, with the interlock of mesomerism gear with cycle frame, mesomerism gear promptly closes, the interlock of driving tooth wheel disc again with the cycle chain interlock, when the people exerts oneself the back-pedal bicycle, bicycle driving tooth wheel disc will reverse, gear on its periphery rotates the several garden shape mesomerism gears that are equal to of interlock, because the hand of rotation of driving tooth wheel disc and mesomerism gear is opposite, thereby chain will be subjected to and the positive the same power of riding type bicycle driving tooth wheel disc, and the cycle wheel reinforcing is advanced.

Advantage of the present utility model is a back-pedal formula bicycle wheel disc owing to be back-pedal, so the people by bike the time, people's center of gravity has increased comfort and safety by bike relatively backward, has improved efficient by bike.

Below with reference to accompanying drawing the utility model is described in further detail.

Fig. 1 is driving tooth wheel disc figure of the present utility model

Fig. 2 is mesomerism gear assembly figure of the present utility model

Fig. 3 is a whole composition diagram of the present utility model

With reference to Fig. 1, back-pedal formula bicycle wheel disc is to turn the driving tooth wheel disc periphery that (1) and driving tooth wheel disc (2) form by pin gear is arranged.

With reference to Fig. 2, the mesomerism gear assembly of back-pedal formula bicycle wheel disc is to be made of metal sheet support (4) and a plurality of garden shape mesomerism gears (5) (7) (8) (9) that are equal on it, on metal sheet support (4), leaves hole, garden (6) and positioning groove (3).

With reference to Fig. 3, back-pedal formula bicycle wheel disc, be that driving tooth wheel disc (2) is placed mesomerism gear assembly center, just place mesomerism gear (5) (7) (8) (9) center, so just formed bicycle driving tooth wheel disc (2), with the interlock of each mesomerism gear (5) (7) (8) (9), each mesomerism gear (5) (7) (8) (9) will close cycle chain (10) interlock.When the people exerts oneself the back-pedal bicycle, bicycle driving tooth wheel disc (2), backspin changes in the direction of arrows, and each mesomerism gear (5) (7) (8) (9) will be pressed the direction positive rotation of arrow, thereby drive cycle chain (10), make the bicycle ahead running.

Claims

1, a kind of back-pedal formula bicycle wheel disc is characterized in that bicycle driving tooth wheel disc (2) periphery, and a plurality of garden shape mesomerism gears (5) (7) (8) (9) that are equal to are arranged.

2, back-pedal formula bicycle wheel disc according to claim 1, it is characterized in that the gear on driving tooth wheel disc (2) periphery, be equal to garden shape mesomerism gear (5) (7) (8) (9) interlock mutually with a plurality of, a plurality of garden shape mesomerism gears (5) (7) (8) (9) that are equal to are simultaneously also by cycle chain (10) interlock.