CN2607315Y - cooperation bike - Google Patents

Abstract

A cooperative bicycle comprises a seat cushion for a front person and a rear person to ride, a handle operated by the front person and the rear person, a frame connected with a front wheel and a rear wheel, and independent pedal transmission devices, wherein one end of a rear wheel axle is provided with a forward thread, the other end of the rear wheel axle is provided with a reverse thread, the forward thread and the reverse thread are respectively meshed with a single-steering flywheel, and a chain of the forward thread flywheel is connected to a fluted disc of the front pedal device; the chain of the reverse-threaded flywheel is connected to the toothed disc of the rear pedal device. The utility model has simple and reasonable structure; the assembly is rapid and convenient; simple operation and improved safety. The drive is not influenced by other people, two people can trample simultaneously and drive together when riding, perhaps trample alone by former or the latter to one person tramples the back and presents idle running when another person tramples in reverse, does not influence the speed of marcing, can not take place to take off the chain danger, in order to reach amusement and motion effect.

Description

cooperation bike

technical field

The utility model relates to a cooperation bicycle which can be ridden by two or more people.

Background technique

Existing tandem bicycle kind is more, structure is different. Generally, the former is the main, and the latter is the auxiliary. The same gear drives synchronous riding. If the latter does not move, the former rides very hard. If the latter pedals in the opposite direction with a naughty attitude, at this time, not only will it not be able to rotate, but it may even be off-chain. Chinese patent No. 012452459 discloses the "tandem bicycle", which mainly includes front and rear wheels, W-shaped vehicle frame, front fork, brake, front and rear handlebars, front and rear seats, front and rear pedals, bracket, front center shaft, center shaft, rear Shafts, chains, chainrings and other parts, the W-shaped frame is movably connected to the rear handlebar, and the front center shaft and the shaft roller of the center shaft are connected to the overrunning clutch chainring, and the overrunning clutch chainring is fixed and connected by the flywheel through bolts It is formed on the variable speed sprocket, and the eccentric sleeve is movably connected on the outer cover of the sprocket. Its structure is complex and needs to be further improved.

purpose of invention

The purpose of the utility model is to provide a cooperative bicycle with simple and reasonable structure, which can be ridden by one, two or three persons, easy to operate, safe and reliable, so as to overcome the shortcomings in the prior art.

A cooperative bicycle designed according to this purpose, including a seat cushion for two people in the front and rear, handlebars operated by the former, a frame connecting the front wheel and the rear wheel, and independent pedal transmissions, which are characterized by the rear wheel axle One end is a positive thread, the other end is a reverse thread, respectively meshing with a single steering flywheel, the chain of the forward thread flywheel is connected to the chainring of the front pedal device; the chain of the reverse thread flywheel is connected to the tooth of the rear pedal device plate.

Another cooperative bicycle designed for this purpose, including a seat cushion for the front, middle and rear three people, a handlebar that the former can operate, a frame that connects the front wheel, the middle wheel, and the rear wheel, and independent pedals The transmission device is characterized in that one end of the front center wheel shaft and the rear center wheel shaft is a forward thread, and the other middle wheel shaft is a reverse thread, respectively meshing with a single steering flywheel, and the chains of the forward thread flywheel are respectively connected to the front and rear pedals chainring of the unit; the chain of the reverse thread flywheel is connected to the chainring of the intermediate pedal unit.

The utility model has the advantages of simple and reasonable structure, rapid and convenient assembly, simple and convenient operation and improved safety. The driving is not affected by other people. When two or more people are riding, they can step on the same time and drive together, or the former or the latter can step on it alone, and when one person steps on the other person, it will appear idling when the other person is stepping on the opposite direction, which will not affect the forward speed and will not happen. Chain danger, in order to achieve entertainment and sports effects.

Description of drawings

Fig. 1 is a schematic diagram of the disassembled three-dimensional structure of the whole machine according to an embodiment of the present invention;

Figure 2 is a schematic diagram of the assembled structure of Figure 1;

Fig. 3 is a schematic diagram of the rear wheel transmission mechanism in Fig. 1 .

Figure 4 is a schematic diagram of the use state.

Detailed ways

Below in conjunction with accompanying drawing and embodiment for further explanation:

Referring to Fig. 1-Fig. 4, this cooperating bicycle includes a seat cushion 10 for two people in front and back, an operable handle 11 for the former, a vehicle frame 14 connecting the front wheel 12 and the rear wheel 13, and independent front pedal transmissions. Device 15 and rear stepping device 16, one end of its rear wheel axle 20 is provided with forward thread 21, and the other end is reverse thread 22, meshes with a single turn flywheel 23 respectively, and the chain 24 of forward thread flywheel is connected to front foot The chainring 151 of pedaling device 15; Adopt this kind of structure, because the forward and reverse threads at two ends of the two single-turning flywheels 23 and the rear wheel axle 20 are fastened, they can advance in the same direction. If one person pedals and the other pedals in the opposite direction, there will be idling, and there will be no off-chain phenomenon due to mutual resistance. The frame can be composed of welded frame or quick disassembly components, and the pedals are similar to the traditional ones.

According to the above-mentioned technical scheme, the utility model can also be designed as a collaborative bicycle for three or more people, including a seat cushion for the front, middle and rear three people to ride, the former operable handle, connecting the front wheel, the middle wheel, The frame of the rear wheel, each independent pedal transmission device, one end of the front center wheel shaft and the rear center wheel shaft are forward threads, and the other middle wheel shaft is reverse thread, respectively meshing with a single steering flywheel, the chain of the forward thread flywheel Chainrings attached to the front and rear pedals respectively; the chain of the reverse thread flywheel is connected to the chainring of the middle pedals. Bearings of seats 1 and 3 of the transmission system are forward threads, while bearings of seats 2 and 4 are reverse threads, and so on.

Claims (2)

1. A cooperative bicycle, comprising a seat cushion (10) for the front and rear two people to ride on, a handlebar (11) operable by the former, and a vehicle frame (14) connecting the front wheel (12) and the rear wheel (13) , independent pedal transmissions (15, 16), characterized in that one end of the rear wheel axle is a forward thread (21), and the other end is a reverse thread (22), respectively meshing with a single steering flywheel (23), positive The chain (24) of the flywheel is connected to the chainring (151) of the front pedal device (15); the chain of the reverse thread flywheel is connected to the chainring (161) of the rear pedal device (16). 2. A collaborative bicycle, comprising a seat cushion for the front, middle and rear riders, an operable handle for the former, a vehicle frame connecting the front wheel, the middle wheel, and the rear wheel, and independent pedal transmission devices. The characteristic is that one end of the front center wheel shaft and the rear center wheel shaft has positive threads, and the other center wheel shaft has reverse threads, which are respectively engaged with a single-turn flywheel, and the chains of the positive thread flywheels are respectively connected to the chainrings of the front and rear pedal devices. ; The chain of the flywheel with reverse thread is connected to the chainring of the intermediate pedal unit.

Images