CN2480271Y

CN2480271Y - Short type light weight bicycle

Info

Publication number: CN2480271Y
Application number: CN 01240476
Authority: CN
Inventors: 胡永顺
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-06-05
Filing date: 2001-06-05
Publication date: 2002-03-06
Anticipated expiration: 2011-06-05

Abstract

The utility model relates to a short type portable bicycle, essentially comprising a pair of driving mechanisms with same structure, a pair of driven mechanisms correspondent with the driving mechanisms, a driving wheel, a supporting roller, a head end (including an armrest), which are combined by a frame. The driving mechanism and the driven mechanism are connected via a driving chain, one side of the driven mechanism is provided with a free wheel device, the distance between a driving shaft and a driven shaft is shorter than radius of a driven wheel, and the radius of the driven wheel is equal to or shorter than diameter of the supporting wheel. The total shape of the bicycle is characterized in that the utility model is short in body (forty percent shorter than the prior bicycles), light in weight (sixty to seventy percent of weight of the prior bicycles), and simultaneously lowers cost by over fifteen percent.

Description

Short build portable bicycle

The utility model belongs to technical field of bicycles.

Along with the progress of society, people's living standard improve constantly vehicle rapid growths such as automobile, motor bike, also give simultaneously traffic, that environment brings is unfavorable, i.e. crowded traffic, environmental pollution is serious, give the existence of people's existence, especially urban human, health is had a strong impact on; Because urban ground is in short supply, the storage area of vehicle is limited, so also bring difficulty for city management.Bicycle is little with its area occupied, advantage such as easy to use, environmental protection, body-building and a kind of in-plant vehicle of can yet be regarded as forever.But also exist deficiency, as move inconvenience, it is big etc. that relative area occupied is deposited by family.

The purpose of this utility model provides a kind of hand-held design bicycle, and it is by shortening car body, promptly shorten the entire length of bicycle, reducing wheel diameter to overcome deficiency of the prior art.

This purpose realizes with following technical proposal: this weak point build portable bicycle, it is mainly by driver train, driven-mechanism, be driven wheel, the servo-actuated wheel, headstock (comprising handrail) connects composition by frame assembly, wherein driver train joins by driving chain and driven-mechanism, it is characterized in that driver train is that mechanism by a pair of identical structure constitutes, and place the both sides that are driven wheel respectively, driven-mechanism also is by constituting with the corresponding a pair of mechanism of driver train, line (distance) is less than the radius that is driven wheel between the axle drive shaft of driver train and the driven shaft of driven-mechanism, and the radius that is driven wheel is equal to or less than the diameter of servo-actuated wheel.The mechanism of a pair of identical structure of driver train is respectively by short half axle drive shaft, is provided with foot-operatedly at the one end, and its other end is provided with driven wheel and constitutes, and its short-and-medium half axle drive shaft 1 is connected with the support normal-running fit of frame assembly by bearing.Described driven-mechanism is by driven shaft, corresponding setting has driven transmission gear (Case of fly-wheel) respectively in its both sides, at the transmission gear on its right side and be driven and be provided with overriding clutch between the wheel and constitute, driven shaft is connected with the support normal-running fit of frame assembly by bearing, is driven wheel places driven shaft by bearing midway location.Crossbeam in the described frame assembly can be made of two parts, and two parts then are collapsible connection

The utility model entire length shortens, weight saving, and it will benefit the alleviation traffic; Be convenient to deposit; Enlarge people's living space.Its actual length is approximately 60% of existing bicycle, and its weight is approximately 70% of existing bicycle, and cost (cost) has reduced more than 15%.

Following accompanying drawing has provided embodiment of the present utility model:

Fig. 1 has provided the integral structure scheme drawing of the utility model embodiment 1.

Fig. 2 has provided the integral structure scheme drawing of the utility model embodiment 2.

Fig. 3 is the driving mechanism structure scheme drawing.

Fig. 4 is a driven-mechanism integral structure scheme drawing.

Fig. 5 is the fundamental diagram of overriding clutch.

In conjunction with the accompanying drawings integral structure of the present utility model and principle of work thereof are made a detailed description:

As shown in Figure 1, 2: this weak point build portable bicycle mainly by driver train, driven-mechanism, be driven wheel 7, servo-actuated wheel 9, headstock and by frame assembly (comprising all supports and connecting rod) their connected (comprising handrail) 10 and to combine.Wherein driver train is connected by messenger chain 11 with driven-mechanism.The axle drive shaft of driver train and driven-mechanism be driven interaxle shortest distance less than the radius that is driven wheel 7; The radius that is driven wheel is equal to or less than the diameter of servo-actuated wheel 9.Embodiment one shown in Figure 1 is a Foldable type bicycle, its front-wheel for be driven wheel 7, trailing wheel is a servo-actuated wheel 9, individual point of connection 12 is arranged on the crossbeam 14 in the frame assembly, make it can fix a straight line by pin key or other connection mode, take down pin key and make crossbeam collapsible, (being convenient to deposit) is equipped with back seat 13 on the crossbeam, the back segment of crossbeam becomes bending, captives joint with the center shaft of servo-actuated wheel 9 in its end.Equally with conventional bicycle control sluice is housed being driven on the wheel 7.Embodiment two shown in Figure 2 is not Collapsible bicycles, and its front-wheel is that servo-actuated wheel 9, trailing wheel are for being driven wheel 7.As shown in Figure 3: described driver train is that a pair of mechanism by same structure constitutes, they are respectively by a semi-minor axis 1, and be connected with support 4 normal-running fiies in the frame assembly by bearing, at an end anchor fitting of semi-minor axis driven wheel 3 being arranged, the other end is equipped with foot-operated 2 and constitutes.(referring to Fig. 1,2) a pair of driver train with spline structure places the both sides that are driven wheel 7 respectively accordingly.As shown in Figure 4: driven-mechanism has a driven shaft 5, on axle and be that relevant position, the both sides anchor fitting that is driven wheel 7 has transmission gear (Case of fly-wheel) 6, at the Case of fly-wheel on its right side and be driven that device has overriding clutch 8 between the wheel, overcoat of (referring to Fig. 5) power-transfer clutch 8 and transmission gear (Case of fly-wheel) welding, cover and the cylindrical fireworks flush fit that is driven wheel in it.Case of fly-wheel 6 is on sale respectively with overriding clutch 8 markets, on the axle in the transmission gear outside bearing is housed, and its overcoat is connected with support 4 normal-running fiies.A pair of driven wheel 3 on (seeing Fig. 1,2) driver train is connected by driving chain 11 respectively with a pair of corresponding Case of fly-wheel 6 on the driven-mechanism.

Driving process of the present utility model: when cyclist's forward drive is foot-operated, drive the driven wheel forward rotation, drive driven Case of fly-wheel forward rotation, be driven wheel simultaneously and move ahead by driving chain by the right semi-minor axis.In advancing if foot-operated when backward rotation occurring, because the effect after Case of fly-wheel and the overriding clutch combination, at this time do not have an effect, stop suddenly or reverse and can not influence and be driven the wheel forward rotation so bicycle is foot-operated in advancing to being driven wheel.

Because identical left and right sides Case of fly-wheel and the driven shaft flush fit of size, then two Case of fly-wheel are synchronous, so that the driven wheel on two semi-minor axis of driving chain institute bonded assembly also remains synchronous rotation.

Claims

1, a kind of short build portable bicycle, it is mainly by driver train, driven-mechanism, be driven wheel, the servo-actuated wheel, headstock (comprising handrail) connects composition by frame assembly, wherein driver train joins by driving chain and driven-mechanism, it is characterized in that driver train is that mechanism by a pair of identical structure constitutes, and place the both sides that are driven wheel respectively, driven-mechanism is by constituting with the corresponding a pair of mechanism of driver train, line (distance) is less than the radius that is driven wheel between the axle drive shaft of driver train and the driven shaft of driven-mechanism, and the radius that is driven wheel is equal to or less than the diameter of servo-actuated wheel.

2, short build portable bicycle according to claim 1, the mechanism that it is characterized in that a pair of identical structure of described driver train is respectively by short half axle drive shaft (1), be provided with foot-operated (2) at the one end, its other end is provided with driven wheel (3) and constitutes, and its short-and-medium half axle drive shaft (1) is connected with support (4) normal-running fit of frame assembly by bearing.

3, short build portable bicycle according to claim 1, it is characterized in that described driven-mechanism is by driven shaft (5), corresponding setting has driven transmission gear (Case of fly-wheel) (6) respectively in its both sides, at the transmission gear on its right side and be driven and be provided with overriding clutch (8) between the wheel and constitute, driven shaft is connected with support (4) normal-running fit of frame assembly by bearing, is driven wheel (7) places driven shaft by bearing midway location.

4, according to claim 1,2 or 3 described short build portable bicycles, it is characterized in that the crossbeam (14) in the described frame assembly, can constitute by two parts, and two parts then are collapsible connection.