CN201030916Y

CN201030916Y - Novel bicycle

Info

Publication number: CN201030916Y
Application number: CNU2007201423386U
Authority: CN
Inventors: 刘晓艳; 张铱; 刘丰
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-28
Filing date: 2007-03-28
Publication date: 2008-03-05
Anticipated expiration: 2017-03-28

Abstract

A novel bicycle is provided. The utility model is provided a bicycle or a tricycle whose front wheel pedal is driven reciprocally and hand-bar controls the deflection of back wheel. The lower end of the front fork is respectively hinged with two cranks through pivot shafts, and the cranks connected with chains and flywheels. A muffle and a return spring are sleeved on the two ends of the front wheel shaft, and the lower end of the hand-bar vertical pole is dynamically connected with the back wheel steering shaft. The front wheel is big, and the back wheel is small, the hand-bar and the saddle and the pedals are low, and the front fork is directly connected with a frame. The utility model has the characteristics of small body, fast speed, and comfortable and light and safe driving and the like.

Description

New bicycle

Affiliated technical field

The utility model relates to the two-wheeled or the tricycle of a kind of f-w-d, rear-axle steering.

Background technology

The bicycle of f-w-d, rear-axle steering can make car body reduce, and down-shift of working center is the effective way that realizes the bicycle lighting, but if continue to use the revolving type of drive of standard bicycle, has the problems such as hard, that driving is more awkward that scrunch.

Summary of the invention

For addressing the above problem, the utility model adopts the shuttle type of drive of front-wheel pedal, and adopts handlebar to control the rear-axle steering device effectively, and is comfortable, laborsaving to reach driving, turns to flexible, failure-free purpose.

The technical scheme that the utility model is taked for its technical matters of solution is: a flywheel respectively is installed on front-wheel two wheel hubs, each suit one sleeve at the front wheel spindle two ends, one end of sleeve keeps off near bearing, the other end is near the front fork stand-off, at sleeve outside suit return spring, one end of return spring connects the flywheel outer ring, and the other end connects the front fork stand-off.Two hinges are equipped with at the about 11CM in distance ground place in the front fork lower end, hinged two cranks of difference, and the pull bar on crank top connects chain or steel rope, and the other end of chain or steel rope connects flywheel.Adopt chain drive, flywheel is the Regular Bicycle flywheel, and an end of chain connects teeth of flywheel; And adopt steel rope to drive, and there is a pulley groove flywheel outer ring, and an end of steel rope is fixed in the pulley groove.Front fork is without steering column jacket and the direct connection vehicle frame, and this car front-wheel is big, trailing wheel is little, and handlebar, vehicle seat, pedal are short, and the front and rear wheel spacing is less.The handlebar vertical rod divides straight formula and two kinds of structures of inclined, and a power wheel (sprocket wheel or pulley) or fork arm respectively are equipped with in the lower end of straight formula handlebar vertical rod, and power wheel or fork arm are by the power wheel on driving band (chain or steel rope or connecting rod) the connection rear wheel steering shaft.The lower end of inclined handlebar vertical rod connects the upper end of rear-axle steering by universal-joint.

Adopt two pedals back and forth to drive, not only can save the space reducing the vehicle commander, reduce vehicle seat, handlebar reducing overall height at low level place, front-wheel both sides, and scrunch unfold, drive laborsaving.And as the version that adopts f-w-d and turn to because legs and feet must follow front-wheel to rotate when turning to,,, be difficult to improve the speed of a motor vehicle again if adopt little front-wheel so when adopting big front-wheel, turn to difficulty.And the employing f-w-d, the version of rear-axle steering just efficiently solves this contradiction.

The beneficial effects of the utility model are: car body is small and exquisite, speed is very fast, driving is comfortable, it is laborsaving to scrunch, safe in operation, turn to flexibly.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the vertical rod of inclined handlebar, double rear wheel structural front view.

Fig. 2 is the vertical rod of inclined handlebar, double rear wheel structure birds-eye view.

Fig. 3 is the vertical rod of inclined handlebar, single rear wheel structural front view.

Fig. 4 is front-wheel chain-type transmission structures figure.

Fig. 5 is front-wheel steel wire rope type transmission structures figure.

Fig. 6 is the vertical rod of straight formula handlebar, single rear wheel structural front view.

Fig. 7 is the vertical rod of straight formula handlebar, double rear wheel structural front view.

Fig. 8 is that fork arm connects back power wheel constructional drawing.

In the drawings, 1, front-wheel, 2, front fork, 3, front wheel spindle, 4, the front fork stand-off, 5, flywheel, 6, return spring, 7, chain or steel rope, 8, crank, 9, hinge, 10, pedal, 11, vehicle frame, 12, trailing wheel, 13, hind axle, 14, back vent, 15, back steering shaft sleeve, 16, rear wheel steering shaft, 17, universal-joint, 18, the handlebar vertical rod, 19, handlebar, 20, brake lever, 21, vehicle seat produces post, 22, vehicle seat, 23, fork arm, 24, driving band (chain or steel rope or connecting rod), 25, power wheel (sprocket wheel or pulley or pull out wheel), 26, preceding steering shaft sleeve, 27, the bearing retaining, 28, sleeve, 29, pull bar, 30, wheel hub.

The specific embodiment

In Fig. 1, front-wheel (1) is installed on the front wheel spindle (3), and front wheel spindle (3) is installed on the front fork stand-off (4), and there are hinge (9) hinged two cranks (8) respectively front fork (2) lower end, and pedal (10) is installed in the upper end of crank (8).Front fork (2) direct connection vehicle frame (11), steering shaft sleeve (26) and back steering shaft sleeve (15) before vehicle frame (11) connects, handlebar vertical rod (18) is an inclined, and its top connects handlebar (19) and brake lever (20), and its lower end connects rear wheel steering shaft (16) by universal-joint (17).

In Fig. 2, a flywheel (5) is respectively installed on front-wheel (1) both sides, goes up a return spring of each sleeve (6) at the front wheel spindle (3) in flywheel (5) outside, and an end of chain or steel rope (7) connects flywheel (5), the pull bar (29) on the other end connecting crank (8).Two trailing wheels (12) are installed in the two ends of hind axle (13).

In Fig. 3, front fork (2) connects vehicle frame (11) and connects vehicle seat (22).

In Fig. 4, on the wheel hub (30) of front-wheel (1) both sides a flywheel (5) is installed respectively, the both sides of front wheel spindle (3) sleeves of each suit (28), sleeve (28) one ends are near bearing guard (27), the other end is near front fork stand-off (4), return spring (6) is sleeved on the sleeve (28), and the one end connects flywheel teeth, and the other end connects front fork stand-off (4).

In Fig. 5, the outer ring of flywheel (5) has pulley groove, and an end of steel rope (7) is fixed in the pulley groove, other end connecting crank (8), and other parts are identical with Fig. 3.

In Fig. 6, power wheel (25) is installed in the lower end of straight formula handlebar vertical rod, and power wheel (25) connects back power wheel (25) by driving band (24), and back power wheel (25) is installed on the rear wheel steering shaft (16).

In Fig. 7,8, front-wheel (1) is obviously greater than two trailing wheels (12), and vehicle frame (11) is short, and its front end connects front fork (2) lower end, and the rear end connects back steering shaft sleeve (15).Vehicle seat (22) is roomy and have little backrest, and seat post (21) connects vehicle frame (11).Steering shaft sleeve (26) before front fork (2) upper end connects, the lower end of handlebar vertical rod connects fork arm (23), and the lower end of fork arm (23) connects driving band (24) respectively, and connects back power wheel (30).

Driving mechanism of the present utility model is: when pedal (10) when the front lower place scrunches, chain or steel rope (7) affect flywheel (5) to be rotated in the forward, flywheel (5) has been tightened return spring (6) when driving to move ahead; When pedal (10) arrival low level pin lifts, under the application force of return spring (6), make flywheel (5), chain or steel rope (7), crank (8), pedal (10) automatically reset.Two pedals (10) can drive simultaneously, also can drive by turns.

Claims

1. new bicycle, a kind of f-w-d, the two-wheeled of rear-axle steering or tricycle, comprise front driving wheel, one or two back wheel flutter, handlebar, brake, vehicle seat, the car fork, vehicle frame, it is characterized in that: a flywheel respectively is installed on front-wheel two wheel hubs, each suit one sleeve at the front wheel spindle two ends, sleeve outside suit return spring, two hinges on the front fork lower end are hinged crank respectively, and crank top connects chain or steel rope, the other end of chain or steel rope connects flywheel, front fork direct connection vehicle frame, handlebar vertical rod divide straight formula and two kinds of structures of inclined, and its lower end is connected with rear wheel steering shaft power, front-wheel is big, trailing wheel is little, handlebar, vehicle seat is short.

2. according to the described new bicycle of claim 1, it is characterized in that: sleeve one end is near bearing guard, and the other end is near the front fork stand-off.

3. according to the described new bicycle of claim 1, it is characterized in that: a power wheel or fork arm are equipped with in the lower end of straight formula handlebar vertical rod, and power wheel or fork arm are connected by the power wheel of driving band with the rear wheel steering shaft upper end.

4. according to the described new bicycle of claim 3, it is characterized in that: power wheel is sprocket wheel or pulley or thumb wheel, sprocket wheel is by the sprocket wheel on the chain connection rear wheel steering shaft, and pulley is by the pulley on the steel rope connection rear wheel steering shaft, and thumb wheel is by the thumb wheel on the connecting rod connection rear wheel steering shaft.

5. according to the described new bicycle of claim 1, it is characterized in that: inclined handlebar vertical rod lower end connects the upper end of rear wheel steering shaft by universal-joint.

6. according to the described new bicycle of claim 1, it is characterized in that: in three wheeled structures, the lower end of rear wheel steering shaft is connected with hind axle in the middle of two trailing wheels.

7. according to the described new bicycle of claim 1, it is characterized in that: adopt chain drive, flywheel is the Regular Bicycle flywheel, and an end of chain connects teeth of flywheel; And adopt steel rope to drive, and there is a pulley groove flywheel outer ring, and an end of steel rope is fixed in the pulley groove.