CN2160601Y

CN2160601Y - Chain gear type bicycle driven by hands and feet at same time

Info

Publication number: CN2160601Y
Application number: CN 93214572
Authority: CN
Inventors: 张国雄
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-28
Filing date: 1993-05-28
Publication date: 1994-04-06
Anticipated expiration: 2003-05-28

Abstract

The utility model relates to a chain gear type bicycle driven by hands and feet simultaneously. In the utility model, a bicycle which is composed of a bicycle body frame, a front and a rear wheels, a steering handle, a drive sprocket, a braking device, etc., is provided with a prepositive rocker arm foot driving device, a manual driving rocker, and a direction operating device. The utility model can be swung upwards and backwards by hands or by feet. The rotation of the wheels can be realized by that a chainwheel is driven by a chain to rotate to one direction, and the bicycle is driven to run. Therefore, the utility model has the advantages of good safety and stability, little riding resistance, labor saving, high speed, adjustable speed, good starting and climbing performance.

Description

Chain gear type bicycle driven by hands and feet at same time

The utility model relates to the sprocket-type bicycle that a kind of manually driven sprocket-type bicycle, particularly trick can drive simultaneously.

The bicycle of the common use of people at present all belongs to chain sprocket drive formula bicycle, it includes vehicle body frame, saddle, front and back wheel, steering handle, chain device, brake equipment etc., in recent years, people are to improving the speed of bicycle, improve the traveling comfort and the safety of riding, improve the light of bicycle, fast etc. a large amount of research and test have been done in the aspect, make modern bicycle on overall performance, obtained continuous raising on handsome in appearance, but examine and analyze this as can be seen chain sprocket drive formula bicycle and also have following several shortcoming: 1, the driving of car is finished by people's both legs up-and-down movement, owing to be up-and-down movement, the height at seat just must be greater than the length of leg, so just make that the center of gravity of people in riding is higher, the poor stability of car, once running into emergency situation overturning easily, this also is that the bicycle traffic accident is more, a reason of poor stability.Be difficult to install in order to reduce the streamline contour case of air resistance in addition because in riding, the height of whole movable body is higher, thereby air resistance is big, and from structure.2, owing to be the both legs up-and-down movements when riding, just determined that the saddle area of car can only be very little, therefore during riding saddle to the very big pressure and the friction of perineal position generation of human body, to hemorrhoid, anal fissure, male prostatitis, and multiple gynaecological disease has certain pathogenic effects, influences the healthy of cyclist.3, from the riding posture of human body, the bicyclist is that both hands are held steering handle, forward lean, arm is supporting partly weight of upper body, sometimes in order to reduce air resistance and to improve the speed of a motor vehicle, degree of body lean is almost near 90 °, and this riding posture causes arm and lumbar fatigue easily.4, come drive sprocket and promote car with the both legs up-and-down movement to move ahead, it is actually a crank rod movement, owing to there are upper and lower two dead points, therefore, each circulation of crank is only have an appointment (i.e. 1/4 circulation) about 90 ° of the most effective driving action.And the maximum force that acts on the crank can only be cyclist's a approximate weight, this shows, existing bicycle driving device can not can not be accepted the strength of cyclist's both legs most effectively again biglyyer, car also just can not have higher moving velocity, and starting ability and grade climbing performance are all relatively poor.5, the bus equipment voluntarily at some top grade has transmission system, these transmission systems are generally all handled by flexible axle (steel cable), except flexible axle wear and tear easily corrosion and life-span long, the planetary gear speed-changing structure is complicated, simultaneously because the device space is little, gear tooth can only miniaturization, and this requirement to material and manufacturing process is all higher, quality is difficult for guaranteeing, and is very fragile.And tower sprocket wheel speed changing structure does not make chain deflection as a rule because of the front and back sprocket wheel in same plane, influences chain service life and driving efficiency, must handle two respectively by two handles during manipulation and dial the chain devices, yet more complicated on the structure.

The purpose of this utility model is in order to overcome the deficiency of above-mentioned existence, and the chain sprocket drive formula bicycle that provides a kind of trick to drive simultaneously.

The purpose of this utility model is finished by following technical solution, and the bicycle that is made of vehicle body frame, front and back wheel, steering handle, drive sprocket, brake equipment etc. is provided with forward type rocking arm foot driving device and a manual rocking bar driving and a directional control device of being with universal coupling.

The formation of forward type rocking arm foot driving device is that the vehicle body frame above the front-wheel is provided with pin driving rocker arm bracket, this pin drives in the rocker arm bracket and is mounted with rotating shaft, the two ends of rotating shaft be fixed with band foot-operated about two rocking arms, one end of driving chain is positioned on the rocking arm, and the other end is being connected on the back plate of vehicle body frame middle and lower part by a retracing spring behind the drive sprocket of walking around on the trailing wheel.

The manual rocking bar of band universal coupling drives and the formation of directional control device is, front portion at vehicle body frame is provided with bearing support, on be fixed with the hand-drive rocking bar core, be mounted with top in this hand-drive rocking bar core and be connected with the hand-drive rocking bar of steering handle, the bottom of hand-drive rocking bar is connected with the rocking arm steering shaft by universal coupling, this steering shaft links to each other with the front fork of wheel by a directional control connecting rod, one end of driving chain is positioned on the hand-drive rocking bar, and the other end is placed in the place ahead pin and drives the pulley on the rocker arm bracket and also be connected on the back plate of vehicle body frame middle and lower part by a retracing spring behind another drive sprocket on the trailing wheel walking around.

The purpose of this utility model can also come further to finish by following technical solution, pin drives and increases the journey pulley before rocking arm is provided with, one end of driving chain is fixed on earlier on the back plate at vehicle body frame middle part, and then walk around pin drive on the rocking arm before increase the journey pulley.

In order to make the speed of a motor vehicle adjustable, be installed in and can be positioned pin arbitrarily by the Camlock device and drive on the positioning sliding block on the rocking arm preceding increasing the journey pulley, increase or reduce actuating speed by increasing or shorten rocking arm cycloid length.

The utility model increases the journey pulley after two retracing spring places respectively are provided with, chain drive-belt is connected on the back plate of Rear wheel suspension frame after increasing the journey pulley walking around.

On the back plate of two hanger brackets, hanger bracket is then hinged by rotating shaft and vehicle body frame the utility model is placed in trailing wheel by wheel shaft about, and the top of back plate is connected with the spring bearing of band damping spring and is connected with the schoolbag frame at vehicle body frame rear portion.

Description of drawings is as follows:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the plan structure scheme drawing of Fig. 1.

Fig. 3 is the structural representation of the utility model slide block speed regulation device.

Fig. 4 is that the utility model hand-operated rocker arm drives and directional control apparatus structure scheme drawing.

Below will the utility model is further introduced: Fig. 1-Fig. 2 by accompanying drawing, vehicle body frame 1 is welded by steel pipe, it is a kind of truss structure basically, respectively be mounted with front-wheel 2 and trailing wheel 3 before and after it by wheel shaft, vehicle body frame 1 above the front-wheel 2 is provided with rocker arm bracket 4, be mounted with turning cylinder 5 in this rocker arm bracket 4, the two ends of this turning cylinder 5 be fixed with band foot-operated 6 about two rocking arms 7, on right rocking arm 7 device have can running fix on rocking arm slide block speed regulation device 8, the concrete structure of this slide block speed regulation device 8 is with reference to shown in Figure 3, it is by positioning sliding block 9, Camlock device 10, fulcrum 11 compositions such as grade, before increase journey pulley 12 and be placed on the above-mentioned slide block speed regulation device 8 by fulcrum 11 and ball 13, because of Camlock device 10 is eccentric clamping devices, can be securely fixed in positioning sliding block 9 on the optional position of right rocking arm, when slide block speed regulation device 8 to rocking arm turning cylinder 5 near the time, the pull distance and the speed of sprocket wheel reduce, otherwise pull distance and speed just increase.One end of driving chain 14 is fixed on the back plate 15 at vehicle body frame 1 middle part, the other end then walk around earlier on the rocking arm before increase the drive sprocket of walking around again behind the journey pulley 12 on the trailing wheel 3 16, after increasing journey pulley 17 after the back-roll one, be connected on the back plate 19 of Rear wheel suspension frame 18, after increase journey pulley 17 and be contained on the pulley bracket 21 and can freely rotate by axle 20, one end of retracing spring 22 is fixed on the pulley bracket 21, and the other end is fixed on the back plate 23 of vehicle body frame 1 middle and lower part.When people when riding, both legs are pedaled out forward, about two rocking arms 7 swing forward, driving chain 14 is pulling forward thereupon, drives trailing wheel 3 rotations, increases journey pulley 17 after this moment and moves right, the driving chain 14 of sprocket wheel 16 back is emitted forward, and retracing spring 22 is stretched; When both legs were withdrawn backward, under the effect of retracing spring 22, driving chain 14 pulled back, and whole device is returned to initial condition.Go round and begin again like this, constantly drive car and move ahead.Here increase the distance that pull distance that the journey pulley can make driving chain 14 moves than rocking arm relevant position before and after and nearly double, with the coordination that improves the speed of a motor vehicle and the described hand-drive in both legs drive actions and back is moved.

The manual rocking bar of band universal coupling drives and the directional control device can further specify in conjunction with Fig. 4, middle front part at vehicle body frame 1 is provided with bearing support 24, rocking bar core 25 is installed above, be mounted with top in this rocking bar core 25 and be connected with the hand-drive rocking bar 27 of steering handle 26, the bottom connects rocking arm steering shaft 29 by universal coupling 28, this steering shaft 29 links to each other with the front fork 31 of front-wheel 2 by a directional control connecting rod 30, formed a similar four-bar linkage, the rider rotates hand-drive rocking bar 27 by steering handle 26, and by 29 rotations of universal coupling drive rocking arm steering shaft, and then direction of passage control link 30 rotates front-wheel work accordingly, and the bicyclist also can pass through steering handle 26 swings simultaneously.One end of driving chain 32 is fixed on the hand-drive rocking bar 27, the other end is at first walked around on pulley 33 back another drive sprockets 34 on trailing wheel 3 that are placed on the place ahead rocker arm bracket 4, rewound at last and be connected on the back plate 19 of Rear wheel suspension frame 18 after increasing journey pulley 35 after another, with last after to increase journey pulley 17 the same, after increase journey pulley 35 and be contained on the pulley bracket and can freely rotate by axle, one end of another retracing spring is fixed on the pulley bracket equally, and the other end then is fixed on the back plate 23 of vehicle body frame middle and lower part.When the bicyclist swung hand-drive rocking bar 27 with hand by steering handle 26 backward, driving chain 32 was pulled out through pulley 33, and the drive sprocket 34 that drives on the trailing wheel drives trailing wheel 3 rotations, drives car and moves ahead; When hand-drive rocking bar 27 is swung forward, increase the journey pulley after retracing spring just can spur driving chain 32 is resetted, going round and beginning again so just can drive car and advance.The above, hand driving device and foot driving device be the both sides of independence and the vehicle body frame 1 that is placed in separately, and two drive sprockets split in the both sides of trailing wheel 3, and two kinds of actuating devices are separate unaffected, can drive car simultaneously and move ahead, also can operate driving car and move ahead separately.

The utility model has adopted rear wheel suspension apparatus, to guarantee that the rider's is comfortable and safe, reduce vibrations, it is mainly by hanger bracket 18, damping spring 36, spring bearing 37, back plate 19 formations such as grade, trailing wheel 3 is placed on the back plate 19 of hanger bracket 18 by wheel shaft, 18 of hanger brackets are hinged by rotating shaft 38 and vehicle body frame 1, and the top of back plate 19 is connected with the spring bearing 37 of band damping spring 36 and is connected with the schoolbag frame 39 at vehicle body frame 1 rear portion, when trailing wheel 3 withstands shocks like this, because the buffer action of damping spring 36 can make car violent vibrations can not take place.What but schoolbag frame 39 was provided with the double as backrest puts thing case 40, and this front portion of putting thing case 40 is provided with lower and larger area seat 41, people be sitting in ride on this seat 41 obviously much more comfortable than the triangle saddle on the present bicycle.Other structure of the present utility model is identical with existing bicycle structure, be placed on the front fork of vehicle body frame by wheel shaft as front-wheel 2, device has braking control device and matches with brake gear on the front and back wheel edge on the steering handle, bicycle bell also is installed on the steering handle, also is provided with leg rest or the like on the vehicle body frame.

The utility model compared with prior art, have car stability when riding, security is good, riding resistance is little and laborsaving, speed is not only fast and adjustable, particularly start and the excellent characteristics of grade climbing performance, it is not only a kind of light and effective vehicles, and because the process of riding is a kind of all-around exercises, so or a kind of desirable body building utensil.

Claims

1, a kind of trick sprocket-type bicycle that can drive simultaneously includes vehicle body frame, and front-wheel, trailing wheel, steering handle, drive sprocket, brake equipment etc. is characterized in that:

A) vehicle body frame (1) of front-wheel (2) top is provided with pin and drives rocker arm bracket (4), this pin drives in the rocker arm bracket (4) and is mounted with turning cylinder (5), the two ends of turning cylinder (5) be fixed with band foot-operated (6) about two rocking arms (7), one end of driving chain (14) is positioned on the rocking arm (7), the other end is connected on the back plate (23) of vehicle body frame (1) middle and lower part by a retracing spring (22) in drive sprocket (16) back of walking around on the trailing wheel (3), has constituted forward type rocking arm foot driving device;

B) be provided with bearing support (24) in the front portion of vehicle body frame (1), on be fixed with hand-drive rocking bar core (25), be mounted with top in this hand-drive rocking bar core (25) and be connected with steering handle (26), the bottom is connected with the hand-drive rocking bar (27) of universal coupling (28), universal coupling (28) bottom is connected with rocking arm steering shaft (29), this steering shaft (29) is positioned on the hand-drive rocking bar (27) by link to each other with the front fork (31) of wheel (a 2) end of driving chain (32) of a directional control connecting rod (30), the other end is being walked around the pulley (33) that is placed on the place ahead pin driving rocker arm bracket (4) and also is being connected by a retracing spring on the back plate (23) of vehicle body frame (1) middle and lower part after trailing wheel (31) is gone up another drive sprocket (34), and the manual rocking bar that has constituted the band universal coupling drives and the directional control device.

2, the trick as claimed in claim 1 sprocket-type bicycle that can drive simultaneously, it is characterized in that increasing journey pulley (12) before described rocking arm (7) is provided with, one end of driving chain (14) is fixed on earlier on the back plate (15) at vehicle body frame (1) middle part, and then walk around on the rocking arm (7) before increase journey pulley (12).

3, the trick as claimed in claim 2 sprocket-type bicycle that can drive simultaneously is characterized in that increasing before described journey pulley (12) and is installed in by a Camlock device (10) and can be positioned arbitrarily on the positioning sliding block (9) on the rocking arm (7).

4, the sprocket-type bicycle that can drive simultaneously as claim 1 or 2 or 3 described tricks, increase journey pulley (17) after the coupling end that it is characterized in that two retracing springs (22) respectively is connected with one, two driving chains (14) (32) walk around separately after be connected on the back plate (19) of Rear wheel suspension frame (18) after increasing journey pulley (17).