CN2274599Y - Bicycle - Google Patents

Abstract

The utility model relates to a novel bicycle. The traditional connection mode between a transmission rod of a bicycle handlebar and a front support bracket is changed into a universal joint coupling mode, the utility model is additionally provided with a rocker and a swing rack gear, a transversal rod of a bicycle frame is provided with an over running clutch and a chainwheel, and a central shaft of a foot pedal is additionally provided with a differential driver. The utility model has the advantages that the mode that the thighs is used as a power source in the traditional bicycle is changed into the mode that upper limbs and thighs are respectively or jointly used as a power source, which can not only raise running speed, but also ensure the thighs and the upper limbs to alternatively rest. Because the transmission rod of a handlebar is connected with the front support frame by adopting the universal joint coupling, the direction of travel controlled by a handlebar is not influenced.

Description

New bicycle

The utility model relates to a kind of bicycle

Traditional bicycle is generally all stepped on by pin and is driven crank throw and drive by chain, and during this distance travel of vehicle commander voluntarily, two legs are very easily tired.

The purpose of this utility model is: at the problem that standard bicycle (comprising manual tricycle) exists, design a kind of both can be by upper limbs and shank simultaneously as propulsion source, again separately independence as the new bicycle of propulsion source.

The purpose of this utility model is achieved in that a kind of new bicycle, form by handlebar, vehicle seat, vehicle frame, wheel, the foot-operated chain drive-belt that reaches, it is characterized in that: the dwang of handlebar is connected by universal coupling with the front frame of vehicle frame, and set up a rocking bar, the strong point of rocking bar and universal coupling are on same axis, its lower end is provided with two swing tooth bars, and the upper end is connected with the dwang of handlebar by bearing; Two coaxial overriding clutchs that shell is a gear are housed on the cross bar of vehicle frame, also are provided with a sprocket wheel that rotates synchronously with axle on the axle, the gear on two overriding clutchs is meshed with corresponding swing tooth bar respectively; Driving chain wheel is connected by the synthetic sprocket wheel of chain and power, two coaxial overriding clutchs when mounted, its clutch direction is opposite, in the swing of swing tooth bar, they always have one to be in running order, another is to be in to surmount state, and the propulsive effort of in running order overriding clutch is delivered to trailing wheel, and is consistent with the bicycle working direction.

Advantage of the present utility model is: because standard bicycle is only made into by upper limbs and the shank source that is used as power jointly or separately as propulsion source with shank, this not only can improve the road speed of bicycle, and upper limbs and shank can alternately have a rest, and reduces sense of fatigue.Because handlebar adopts universal coupling to be connected with front frame, no matter which kind of angle handlebar is in, can both control front frame neatly, changes direction of traffic at any time.

Fig. 1 is a complete vehicle structure scheme drawing of the present utility model;

Fig. 2 is the grip structure scheme drawing;

Fig. 3 is the synthetic scheme drawing of transmission device.

Below in conjunction with accompanying drawing embodiment of the present utility model is further described:

As seen from Figure 1, the utility model mainly is made up of handlebar (1), vehicle seat (2), vehicle frame (3), wheel (4), foot-operated (5), chain drive-belt (6), between the dwang (9) of handlebar (1) and front frame (7), adopt universal coupling (8) to be connected, handlebar (1) can drive dwang (9) along the point of connection swing, its best hunting range≤60.

As seen from Figure 2, the dwang (9) at handlebar (1) center and be installed between the front frame (7) of front-wheel and be provided with universal coupling (8), the rotation of handlebar (1) can be passed through plunging joint (8) control front frame (7), guarantee the working direction of bicycle, dwang (9) can drive the axis swing of rocking bar (10) with universal coupling (8), and rocking bar (10) lower end is provided with swing tooth bar (11) and (12).

By figure (3) as seen, transmission device of the present utility model is made up of two parts, promptly; The forelimb transmission device of forming by two overriding clutchs (13) of coaxial setting, (14) and driving chain wheel that can coaxial rotation, by riding the velocity resultant transmission device that (5) and differential drive (16) are formed, the power of upper limbs transmission device is transferred to velocity resultant sprocket wheel (18) by sprocket wheel (15) by chain (17), and its power is advanced by chain (6) driving trailing wheel by drive sprocket (19) after synthetic.In the present embodiment, described differential drive is made up of four crowngears (21) (22), (23), (24), wherein, crowngear (21) is captiveed joint synchronization action with velocity resultant sprocket wheel (18), crowngear (22) is captiveed joint synchronization action with drive sprocket (19), crowngear (23), (24) can be gone up at foot-operated cross bar (25) and be rotated.When upper limbs drives, swing handlebar (1), make swing tooth bar (11), (12) crank motion, driving sprocket wheel (15) rotates, drive synthetic sprocket wheel (18) by chain (17) and rotate, at this moment, with its fixing crowngear (21) synchronization action, drive crowngear (22) through umbrella shape transition gear (23), (24), power is passed to trailing wheel by drive sprocket (19) and chain (6); When shank drove, synthetic sprocket wheel (18) and crowngear (21) were motionless, and foot-operated cross bar on the go drives crowngear (23), rotate (24), drove crowngear (22) and drive sprocket (19), and power is passed to trailing wheel through chain (6); When upper limbs and shank combined action, differential drive (16) will be closed trailing wheel by chain (6) with the power biography with common crowngear (22) and the drive sprocket (19) of driving in the synthetic back of two speed superpositions of upper limbs and shank.

One of them also can be omitted in the umbrella shape transition gear (23), (24) that relate in the present embodiment.

The utility model is also applicable to manual tricycle.

Claims (3)

1, a kind of new bicycle is made up of handlebar, vehicle frame, wheel, the foot-operated chain drive-belt that reaches, and it is characterized in that:

The dwang of a, handlebar is connected by universal coupling with the front frame of vehicle frame, and the rocking bar lower end is provided with two swing tooth bars, and the upper end is connected with the dwang of handlebar by bearing, and the swing strong point of rocking bar and universal coupling are on same axis;

Two coaxial overriding clutchs that shell is a gear are housed on the cross bar of b, vehicle frame, also are provided with a sprocket wheel that rotates synchronously with axle on the axle, the gear on two overriding clutch shells is meshed with corresponding swing tooth bar respectively;

C, driving chain wheel are connected with the velocity resultant sprocket wheel by chain.

2, new bicycle according to claim 1 is characterized in that: best amplitude of fluctuation≤60 ° of the dwang of handlebar and the rocking bar of drive thereof and swing tooth bar.

3, new bicycle according to claim 1 and 2 is characterized in that; On the foot-operated axis differential drive is housed.

Images