CN2145744Y - High speed bicycle driven by one's back - Google Patents

Abstract

The utility model relates to a high-speed bicycle driven by one's back. The design thinking of the utility model is the adoption of the principle of the human engineering and the aerodynamics, the back force is adopted as the branch counterforce, and two legs pedal a bicycle to drive the bicycle to move with high speed. A handlebar control rod designs an axial bulb moving rod to eliminate the elastic moving degree and does not influence the lateral turn. A bicycle seat is low, and the back chair of the bicycle seat approaches a rear wheel as close as possible. The entire length of the bicycle is equal to a bicycle of 28 inch, and the entire length of the bicycle is 1910 mm. The utility model has the advantages of low center of gravity, steady ride, two foot contacting with ground any time, safety, small vibration, and adjustable speed.

Description

High speed bicycle driven by one's back

The utility model relates to a kind of back of the body high-speed bicycle of having an effect.

Chinese patent CN86204388U discloses a kind of low center of gravity bicycle, and this car axis moves forward significantly, and seat moves significantly and reduces, center of gravity is reduced, stationarity strengthens, the layback of handlebar lengthening, and front fork protracts, bicyclist's health is got semisupination, but it is higher that this vehicle seats and pedal are compared relative position, and seat is by the seat bend pipe, and seat standpipe device is on vehicle body, back of seat can not bear the antagonistic force of pedaling before two legs, thereby it is advanced at utmost speed.What this car handlebar will be processed in addition is very long, and car turns to not only rotation half through plain greatly, also because of the arm length easy fracture.

The purpose of this utility model is a kind of back of the body of design high-speed bicycle of having an effect.The handlebar stick design endplay do not influence lateral duction to eliminate the elasticity string quantity of motion, to cause plane of rotation and joystick to turn to unlikely stuck because of the inclination angle for preceding standpipe and road surface, designed a bulb commutator.Vehicle seat must remain on overhead about 40CM, fully lowers the center of gravity, and car is operated steadily, and the vehicle seat arm-chair is as far as possible near rear wheel.

Technical solution of the present utility model is: carry on the back the high-speed bicycle of having an effect, form by handlebar 1, front and back wheel, vehicle frame 7, seat 8, axis 18, tween drive shaft 19, rear axle etc., axis 18 reaches, be inserted with the moving bar 3 of bulb string in the handlebar joystick 6, joystick 6 is fixed on the vehicle frame 7 by engaging lug seat 17 and arm 5, and joystick 6 is connected by the moving bar 3 of bulb string with handle riser 2.Vehicle seat seat 8 is contained on the vehicle frame 7 by spring 12, have only about 40CM apart from ground, vehicle seat arm-chair 9 is near rear wheel, be contained on two backrest standpipes 10, backrest standpipe 10 is fixedly connected as an integral body by rear stays 11 and back chain stay 15, the upright arm 13 of seat, the horizontal arm 14 of seat and the vehicle frame 7 on rear wheel both sides.

It is to utilize human engineering and aerodynamic principle that the utility model is carried on the back its mentality of designing of high-speed bicycle of having an effect, and having an effect with the back of the body is that support reaction two legs make it advance at utmost speed to pedal, and cyclist's strength has much, just can add great power to bicycle.Because car is very low, bipod can land at any time, and is very safe.Speed is adjustable, and fast common people ride and reach 35 kilometers/hour, when speed ratio is 6.17, and leicht fallen D/A still to pedal, at this moment pedal one circle is compared fast 0.66 meter of its linear velocity with prototype.Center of gravity is low, and the pulsation-free of riding is many, and in the time of by bike, two legs are packed up, and reduce air resistance.Seat is far away from front and back wheel, vibrates little.Having designed axial bulb conv eliminates the elasticity string quantity of motion and does not influence lateral duction, so long except that having eliminated joystick, turn to inconvenience, plain, outside the easy fracture, can also directly parts such as brake lever be installed on the handlebar, also can add low-drag cowl, reduce air resistance, to improve the speed of a motor vehicle.

Be described as follows with reference to the accompanying drawings:

Fig. 1 carries on the back the high-speed bicycle front view of having an effect.

Fig. 2, handle bar structure figure.

Fig. 3, the steering angle scheme drawing.

This back of the body is had an effect, and shaft device is on vehicle frame 7 in the high-speed bicycle, and apart from ground 31CM, apart from upright arm 13 of seat and back chain stay 15 intersection 84CM, axis 18 is compared with seat 8 horizons, and is more lower slightly, is sitting in the people and tramples pedal on the seat, and two legs stretch is advisable.The big gear wheel of axis 18 1 end device axis, between axis 18 and rear axle, can establish tween drive shaft 19, two chain wheels of device on the tween drive shaft 19, the big gear wheel of axis drives tween drive shaft 19 by a chain and rotates, and the tween drive shaft upper chain wheel drives the rear axle small flywheel by another chain again and rotates.Can install chain tensioner sheet, outer change-speed box etc. additional on the chain.

Because vehicle seat 8 is far away with the position distance of handle riser 2, handlebar will be processed very longly.Car is in service will to keep dynamical equilibrium, and various leverages and other pieces are among the elastic body impact load state of motion all the time, be inserted with moving bar 3 Φ 19.8 of axial bulb string in joystick 6 Φ 25 * 2.5MM, endplay slides during the car operation, but side direction is rotated the nothing influence.Axially the moving bar other end of bulb string is the bulb transformational structure, and the bulb transformational structure is fixed by tight bulb nut 4, and the other end is connected with handle riser 2 by screw rod.Handlebar joystick 6 is captiveed joint with engaging lug seat 17 usefulness pivot pins 16 by having the engaging lug seat 17 of corresponding big or small slotted eye Φ 25MM, and engaging lug seat 17 lower end screw rod connecting branches are fixed by nut.Arm 5 is equipped with ball with ear seat 17 junctions, so that joystick 6 can rotate.Arm 5 is connected on the vehicle frame.

When turning of bicycle, as Fig. 3, joystick 6 is that fulcrum rotates with ear seat 17, and the moving bar turning handle standpipe of bulb string rotates the α angle.Like this, rotate the α angle, joystick 6 rotation displacements are very little, turn to convenient, flexible.

On the horizontal arm 14 of vehicle frame 7 and seat, captive joint seat 8 by spring 12, seat 8 has only about 40CM apart from ground, vehicle seat arm-chair 9 is near rear wheel, be contained on two backrest standpipes 10, backrest standpipe 10 is by the rear stays 11 and the back chain stay 15 on rear wheel both sides, and upright horizontal arm 14 of arm 13/ seat of seat and vehicle frame 7 are fixedly connected as an integral body.Vehicle frame is by front vehicle frame 1, and back vehicle frame 7 two parts are formed, and front vehicle frame 1 is inserted in the vehicle frame 7 of back, and a pin hole is arranged on the back vehicle frame 7, and it is 10 holes of 20MM that spacing is arranged on the front vehicle frame 1, and according to cyclist's stature size, it is fixing with tightening screw 20 to mix up the back.This vehicle commander is adjustable in 1910MM ± 100MM according to the big I of bicyclist's stature.

Claims (2)

1, a kind of back of the body high-speed bicycle of having an effect, by the handlebar I, front and back wheel, vehicle frame 7, seat 8, axis 18, tween drive shaft 19, compositions such as rear axle, axis 18 reaches, it is characterized in that: be inserted with the moving bar 3 of bulb string in the handlebar joystick 6, joystick 6 is fixed on the vehicle frame 7 by engaging lug seat 17 and arm 5, joystick 6 is connected by the moving bar 3 of bulb string with handle riser 2, vehicle seat seat 8 is contained on the vehicle frame 7 by spring 12, vehicle seat arm-chair 9 is near rear wheel, be contained on two backrest standpipes 10, backrest standpipe 10 is by the rear stays 11 and the back chain stay 15 on rear wheel both sides, seat founds arm 13, the horizontal arm 14 of seat, be fixedly connected as an integral body with vehicle frame 7.

2, the back of the body as claimed in claim 1 high-speed bicycle of having an effect, it is characterized in that vehicle frame is by front vehicle frame 1, back vehicle frame 7 two parts are formed, front vehicle frame 1 is inserted in the vehicle frame 7 of back, a pin hole is arranged on the back vehicle frame 7, and it is 10 holes of 20MM that spacing is arranged on the front vehicle frame 1, according to cyclist's stature size, it is fixing with tightening screw 20 to mix up the back, and this vehicle commander is adjustable in 1910MM ± 100MM according to the big I of bicyclist's stature.