CN2408018Y

CN2408018Y - Front and rear wheel driving bicycle

Info

Publication number: CN2408018Y
Application number: CN 00210865
Authority: CN
Inventors: 金策
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-18
Filing date: 2000-02-18
Publication date: 2000-11-29
Anticipated expiration: 2010-02-18

Abstract

The utility model discloses a front wheel-rear wheel driving type bicycle which can maintain a rear wheel driving mechanism of the traditional bicycle to be unchanged. The front wheel of the bicycle is coaxially connected with a fly wheel which is engaged with a chain wheel through a chain; a shaft of the chain wheel is connected with a support frame which is fixed on the front end of a bicycle large frame; two large cranks are fixed on the shaft of the chain wheel in parallel; the top ends of the large cranks are hinged with a connecting bar which is connected with a support frame hinge; a four-connecting bar mechanism is composed of the connecting bar, the support frame, the large cranks and a vertical beam. Handle bars are frontward and backward driven to cause the large cranks to rotate around the shaft to drive a front wheel to move to complete the function that an arm drives the front wheel. The bicycle can be pedaled, and simultaneously can be driven by hands. The carrying capacity and running speed of the bicycle can be increased. The utility model can also be used as a fitness apparatus to exercise double legs and double arms of people.

Description

The front and back wheel driven bicycle

The utility model relates to the improvement of bicycle, is furtherly to disclose a kind of front and back wheel driven bicycle, belongs to technical field of bicycles.

Traditional bicycle all adopts back-wheel drive, and its onward impulse relies on the strength of both legs fully, and when bicycle during at heavy burden, climbing and long-term travel, the burden of shank, and both hands be can't put on a spurt, and the go-cart of having to is sometimes advanced.

The utility model discloses a kind of front and back wheel driven bicycle at the problem that standard bicycle exists, and the strength that makes full use of the both legs both hands drives bicycle.

Task of the present utility model is finished like this: keep traditional bicycle rear driver train constant, on the front-wheel of bicycle, be coaxially connected with flywheel, and by chain and sprocket engagement, support is fixed on the front end of big of car, sprocket shaft is connected on the support, two are turned parallel being fixed on the sprocket shaft greatly, top of turning greatly and rod hinge connection, connecting rod is connected with upright beam hinge, handlebar is fixed on the connecting rod, support, turn greatly, connecting rod and upright beam constitute four-bar linkage, tiltedly straining beam is captiveed joint big of sprocket wheel and car, by the handlebar that seesaws four-bar linkage is rotated around sprocket shaft, promptly turns drive sprocket greatly and rotates, thereby drive chain, flywheel and front-wheel rotate, and finish the function that arm drives the front-wheel motion.

Good effect of the present utility model is: adopt said structure, when driving bicycle rear, both feet also can utilize both hands to drive the front-wheel of bicycle, make full use of physical efficiency, solved traditional bicycle when heavy burden, climbing and long-term travel, the burden of shank, and the problem that both hands be can't put on a spurt have improved the carrying capacity and the running velocity of bicycle, and can be used as body-building apparatus, temper people's both legs both arms.

Further specify the utility model below in conjunction with accompanying drawing.

Fig. 1 is the utility model structure principle chart.

In Fig. 1, by big 10 in car, front-wheel 9 and preceding sprocket drive, trailing wheel and back sprocket drive, handlebar 1, vehicle seat is formed the utility model, keep traditional bicycle rear driver train constant, support 12, connecting rod 3, turn 5 greatly, upright beam 4 is formed four-bar linkage, support 12 is fixed on the front end of big 10 of bicycle, sprocket wheel 6 is coupling on support 12, tiltedly straining beam 11 is fixed together 6 on sprocket wheel and big 10 in car, by oblique straining beam 11, support 12, big 10 in car is sprocket wheel 6 fixed pedestals, two are fixed on the sprocket wheel 6 with turning 5 cocurrent and parallels greatly, but drive sprocket 6 rotates, turning 5 top greatly is connected with connecting rod 3 hinges, connecting rod 3 is connected with upright beam 4 hinges, and handlebar 1 is fixed on the connecting rod 3, and flywheel 8 constitutes engagement by chain 7 with sprocket wheel 6 and pays.

Claims

1, a kind of front and back wheel driven bicycle, by big of car, front-wheel, trailing wheel and back sprocket drive, handlebar, vehicle seat is formed, it is characterized in that: be coaxially connected with flywheel (8) on the front-wheel (9), mesh by chain (7) with sprocket wheel (6), support (12) is fixed on the front end of car big (10), sprocket wheel (6) is coupling on support (12), two are turned greatly on (5) parallel axle that is fixed on sprocket wheel (6), the top and the connecting rod (3) that turn (5) greatly are hinged, connecting rod (3) is connected with upright beam (4) hinge, handlebar (1) is fixed together with connecting rod (3), connecting rod (3), upright beam (4), turn (5) and support (12) greatly and form four-bar linkage, tiltedly straining beam (11) is captiveed joint sprocket wheel (6) axle with car big (10).