CN201058647Y

CN201058647Y - Folding bicycle

Info

Publication number: CN201058647Y
Application number: CNU2007201537033U
Authority: CN
Inventors: 罗长春
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-05-24
Filing date: 2007-05-24
Publication date: 2008-05-14
Anticipated expiration: 2017-05-24

Abstract

The utility model provides a foldable bicycle, which comprises a front wheel, a rear wheel, and a carriage, wherein the front wheel and the rear wheel are respectively connected rotatably on the carriage by front axis and rear axis, a direction-turning handlebar, a bicycle seat, a driving mechanism, a rear support and a support rod are arranged on the carriage, wherein the front end of front beam is welded at the handlebar, the rear end of the front beam is pivoted with one end of deformation rod, one end of an inclined beam is welded slantingly at middle rear part of the front beam, the other end of the inclined beam is welded slantingly at the bicycle seat support, a connection part is welded at the bicycle seat support, one end of a dampening spring is pivoted at the connection part, the other end of the dampening spring is fastened with one end of rear upper fork, the rear upper fork and the rear lower fork are an integrated part, the other common connection end of the integrated part is arranged fixedly at the rear axis, the other end of the rear lower fork is pivoted at the deformation rod, a driving mechanism is arranged at the deformation rod closed to one end of the front beam.

Description

Folding bicycle

Technical field

The utility model relates to a kind of bicycle, particularly a kind of folding bicycle.

Background technology

" clothing ", " food ", " living ", " OK " are the primary demands that people live, and wherein " OK " comprises multiple mode, and bicycle is to be exactly a kind of general vehicle.Along with the progress of society, development of science and technology, it is more and more diversified that bicycle also becomes.In current society, people's rhythm of life is accelerated, and adds the crowded of traffic, and a lot of people need carry bicycle, and this also makes a part of bicycle develop towards miniaturization, derives various portable bicycles.Take a broad view of portable bicycle now, a part is out of shape for transversal stretching, just adopts telescope formula crossbeam, length is shortened reduce the volume of bicycle; Another part is for reclinating, just with bicycle by crossbeam or the doubling of cant beam place, front and back wheel is folded together reduce the volume of bicycle, be convenient for carrying.Yet these folding bicycles also have the place of its inconvenience, need certain power when it is folding, are not easy to fix folding occupying than large tracts of land or the like afterwards after folding.For this reason, a kind of thinking of inventor's conversion solves the folding problem of bicycle from other angle.

Summary of the invention

The purpose of this utility model is to provide a kind of folding bicycle, does not adopt common collapsiblely, and utilize the pipe link between transmission device and the rear axle is out of shape, but bicycle is narrowed down to portable state from normal motoring condition.

Another purpose of the present utility model is to provide a kind of folding bicycle, by driving the effect of treadle, under the situation that does not need very big power, realizes the folding of bicycle.

To achieve these goals, the utility model provides a kind of folding bicycle, include front-wheel, trailing wheel and vehicle frame, front-wheel and trailing wheel are respectively by front axle with rear axle is rotatable is connected on the vehicle frame, described vehicle frame is provided with the tap that is used to turn to, vehicle seat, transmission device, after poppet and strut bar, wherein, the front-axle beam front end is welded in tap, the rear end is connected with deformed rod one end bearing pin, and cant beam one end tilts to be welded in the postmedian of front-axle beam, and the cant beam other end tilts to be welded in the vehicle seat support, be welded with attaching parts on the vehicle seat support, damping spring one end bearing pin is connected in this attaching parts, and the damping spring other end and Seat stay one end fix, and Seat stay and Chain stay are a single piece, its another common connection end is fixed in rear axle, and the other end bearing pin of Chain stay is connected in deformed rod, approaches front-axle beam one end in deformed rod transmission device is set.

Further preferred version of the present utility model is at the place of being rigidly connected strengthening part can be set, to guarantee enough rigidity.

Further preferred version of the present utility model is in the bearing pin junction of deformed rod and Chain stay the driving treadle to be set, so that application of force distortion.

Further preferred version of the present utility model is that the another side at the bearing pin junction of deformed rod and Chain stay driving treadle is provided with the secondary transmission device, so that realize the acceleration capability of this car, remedies the speed defective of small foldable bicycle.

The bicycle that the utility model provides is different from common folding property bicycle, but utilize the deformability of convex polygon, by improvement it can be folded and become concave polygon, thereby realize that whole vehicle frame overall dimensions obtains changing, thereby make things convenient for the user to ride and carry vehicle frame.

Above-mentioned and additional features, advantage of the present utility model can further be understood by the detailed description below in conjunction with accompanying drawing.

Description of drawings

Structural representation when Fig. 1 launches for this folding bicycle;

Fig. 2 is the structural representation of this folding bicycle after folding;

Fig. 3 is the Seat stay structural representation of this folding bicycle;

Fig. 4 is the Chain stay structural representation of this folding bicycle;

Fig. 5 is the after poppet structural representation of this folding bicycle.

Description of reference numerals

Front-wheel 11; Trailing wheel 12; Tap 13; Vehicle seat 14; Transmission device 15; After poppet 16; Strut bar 17; Secondary transmission device 18; Vehicle frame 20; Front-axle beam 21; Cant beam 22; Seat stay 23; Chain stay 24; Damping spring 25; Vehicle seat support 26; Deformed rod 27; Drive treadle 28; Front fork 33;

The specific embodiment

As shown in the figure, the utility model provides a kind of folding bicycle, include front-wheel 11, trailing wheel 12 and vehicle frame 20, front-wheel 11 and trailing wheel 12 are respectively by front axle with rear axle is rotatable is connected on the vehicle frame 20, described vehicle frame 20 is provided with tap 13, vehicle seat 14 (not shown), vehicle seat support 26, transmission device 15 (not shown), after poppet 16 and the strut bar 17 that is used to turn to, wherein front-wheel 11, trailing wheel 12 and tap 13, vehicle seat 14, transmission device 15, after poppet 16 and strut bar 17 are structure common in the prior art, do not repeat them here.

As shown in Figure 1, the expansion drawing of this folding bicycle.Vehicle frame 20 is made up of front-axle beam 21, cant beam 22, Seat stay 23, Chain stay 24, damping spring 25, vehicle seat support 26, deformed rod 27 and front fork 33; Selectable, in deformed rod and Chain stay junction driving treadle 28 is set; Wherein, the strut bar of vehicle seat 14 is connected with vehicle seat support 26 sleeve pipes, regulates so that realize oscilaltion; After poppet 16 1 ends are supported in rear axle by strut bar 17, and the other end is connected in Seat stay by arbitrary mode, for example screw; Front-axle beam 21 front ends are welded in tap, and the rear end is connected with deformed rod 27 1 end bearing pins, and cant beam 22 1 ends tilt to be welded in the postmedian of front-axle beam 21, and cant beam 22 other ends tilt to be welded in vehicle seat support 26, and make the vehicle seat support keep basic vertically state, conveniently to ride seat; Selectable, in tap 13 and front-axle beam 21 junctions reinforced sheet can be set, so that in attractive in appearance, strengthen its coupling stiffness; Selectable, also reinforced sheet can be set in the junction, obtuse angle of cant beam 22 and front-axle beam 21, so that when realizing the nature transition, strengthen coupling stiffness; And selectable, at cant beam 22 opposite sides the reinforcement wing plate can be set, wing plate can be the hollow out design, strengthens the coupling stiffness between vehicle seat support 26, front-axle beam 21, the cant beam 22 in as ornamental trimming; Main distortion is realized at the rear portion of vehicle frame, wherein, be welded with attaching parts on the vehicle seat support 26, damping spring 25 1 end bearing pins are connected in this attaching parts, damping spring 25 other ends fix by any known ways customary and Seat stay 23 1 ends, Seat stay 23 is a single piece with Chain stay 24, to guarantee enough rigidity, its another common connection end is fixed in rear axle, the other end bearing pin of Chain stay 24 is connected in deformed rod 27, approach front-axle beam 21 1 ends in deformed rod 27 transmission device 15 is set, selectable, driving treadle 28 is set in the bearing pin junction of deformed rod 27 and Chain stay 24; Selectable, at the same position another side secondary transmission device is set, so that realize the acceleration capability of this car, remedy the speed defective of small foldable bicycle; At the riding condition that launches fully, Chain stay 24, deformed rod 27, front-axle beam 21 are substantially on same straight line, thus, the Chain stay on same straight line 24, deformed rod 27 and front-axle beam 21, cant beam 22 and Seat stay 23 have constituted the required firm triangle frame of standard bicycle.

The folded state of this folding bicycle, as shown in Figure 2.Wherein, it mainly acts on deformed rod 27 in this foldover design.At first, make deformed rod 27 recessed in triangle with the bearing pin junction of front-axle beam 21, thus, when making this junction inwardly recessed as far as possible, the distance between distilled edition car front and back wheel makes its move toward one another, finally, make latter half of, cant beam 22, Seat stay 23, Chain stay 24 and the deformed rod 27 of front-axle beam 21 form similar W type, Seat stay finally is in into this vertical state under interlock.Selectable, driving treadle 28 is set in the bearing pin junction of Chain stay 24 and deformed rod 27, so that it is convenient the realization folds, more laborsaving; Its mode of action is to trample this driving treadle 28 downwards, therefore, because an end of deformed rod 27 moves downward, the relative naturally upward movement of its other end, simultaneously, distance between compression vehicle frame front and back wheel, move toward one another makes the other end inwardly compression as far as possible of deformed rod 27, thus, be out of shape the same, thereby, reduce the volume of bicycle, make things convenient for carrying of user.

Bicycle is being deformed into folded state from deployed condition, and is deformed into deployed condition by folded state, without any need for fasteners, and latching device or device for quickly disassembling or the like.Its advantage is apparent.

Be to be understood that, below explanation in conjunction with the embodiments is for the utility model illustrative and nonrestrictive just, in not breaking away from spirit and scope of the present utility model, can make many changes and modification to the utility model, it all will drop in the scope of the present utility model defined by the claims.

Claims

1. folding bicycle, include front-wheel (11), trailing wheel (12) and vehicle frame (20), front-wheel (11) and trailing wheel (12) are respectively by front axle with rear axle is rotatable is connected on the vehicle frame (20), described vehicle frame (20) is provided with tap (13), vehicle seat (14), strut bar (17), transmission device (15) and the after poppet (16) that is used to turn to, and it is characterized in that:

Wherein, vehicle frame (20) is made up of front-axle beam (21), cant beam (22), Seat stay (23), Chain stay (24), damping spring (25), vehicle seat support (26), deformed rod (27) and front fork (33); Front-axle beam (21) front end is welded in tap, the rear end is connected with deformed rod (27) one end bearing pins, cant beam (22) one ends tilt to be welded in the postmedian of front-axle beam (21), cant beam (22) other end tilts to be welded in vehicle seat support (26), the vehicle seat support is welded with attaching parts on (26), damping spring (25) one end bearing pins are connected in this attaching parts, damping spring (25) other end Seat stay (23) one ends fix, Seat stay (23) is a single piece with Chain stay (24), its another common connection end is fixed in rear axle, the other end bearing pin of Chain stay (24) is connected in deformed rod (27), approaches front-axle beam (21) one ends in deformed rod (27) transmission device (15) is set.

2. folding bicycle according to claim 1, wherein the place of being rigidly connected can be provided with strengthening part.

3. folding bicycle as claimed in claim 1 or 2 wherein is provided with the driving treadle in the bearing pin junction of deformed rod and Chain stay.

As claim 3 arbitrary as described in folding bicycle, wherein drive the another side of treadle in the bearing pin junction of deformed rod and Chain stay, the secondary transmission device is set.