CN2377165Y - Foldable bicycle - Google Patents

Abstract

The utility model relates to a folding bicycle comprising a bicycle body, a front wheel, a back wheel, a shock absorbing device and a drive mechanism, which is characterized in that the utility model also comprises a handle bar folding device, a telescopic device of a headstock pipe, a front-folding device of a transverse rod, a folding device of a frame fixing head, a rear-folding device of the transverse rod, a telescopic device of a seat support pipe and a pedal folding device. The utility model is provided with a plurality of the folding and telescopic devices, and thus, the bicycle has the advantages of small size and portability after folded.

Description

Folding bicycle

The utility model relates to bicycle, refers in particular to a kind of folding bicycle.

Bicycle has become the vehicle of keeping fit, lie fallow, going out at present, enjoys people's favor.But bicycle commonly used is bigger because of volume, not portable, so have folding bicycle to come out, known folding cycle divides two classes substantially at present: a class such as Taiwan patent 86202130 disclosed folding cycles, its foldable structure comprise that pedestal can descend and the headstock frame can bend backward; Another kind of is Taiwan patent 86201678 disclosed another kind of structures, comprises cross tube is bent downwards, and sheer pole is bending upwards, with about draw close and amount to.Above-mentioned two classes all are partially folded structures, and after folding, volume is still bigger, and it is bigger to take up room, and carries inconvenience.

The purpose of this utility model is to provide a kind of folding bicycle, and it has comprised the folding and retractor device in many places, reaches that volume after folding is little, taking up room little and carrying places purpose easily.

The purpose of this utility model is achieved in that a kind of folding bicycle, comprise bicycle body, front-wheel, trailing wheel, shock absorbing apparatus and transmission device, it is characterized in that also comprising folding device behind folding device before the handlebar folding device, head tube retractor device, cross bar, vehicle frame fixed head folding device, the cross bar, seat arm retractor device and pedal folding device; One end of two axostylus axostyles of transmission device be individually fixed in the axostylus axostyle contact pin of skeleton group one side and the axostylus axostyle contact pin of flexible arm lower end, seat on; The other end of axostylus axostyle is fixed on the axle bed, with the winding of gear transmission group; Two handlebar elements of this handlebar folding device rotate along the rivet that is welded in headstock telescopic pipe upper end, the chimeric block flange of the chimeric block front end of one handlebar element hooks the embedding seat of other handlebar element, and the tail end of the chimeric contact pin of this embedding seat is provided with chimeric volume axle and withholds this chimeric block flange; The cross bar combined block of this cross bar folding device embeds in the cross bar connecting support, and this button fastens the clasp of front end the button piece of this cross bar combined block; The crank arm front end of this pedal folding device is provided with spring block, is provided with spring in the loop bar, and this bending is packaged to be located in the bending seat, fixes with latch, and this bending piece front end is provided with the loop bar block, and this loop bar quilt cover pole spacing piece blocks and fixes; The open end that this head tube retractor device and this seat arm retractor device are included in flexible outer tube is provided with the telescopic pipe wedge, is provided with the flexible brake plate of braking eccentric shaft at a side suit tail end of the fixed link of this telescopic pipe wedge.

This gear transmission group is set in main gear dish and auxiliary gear dish by chain, and chain is set in linked gear dish and driving cog wheel disc in addition, and array configuration is Shape.

Major advantage of the present utility model is: owing to be provided with most folding and retractor devices, make to have the advantage that volume is little and be easy to carry and place after folding.

Below in conjunction with drawings and Examples the utility model is described further again.

Fig. 1 is a deployed configuration scheme drawing of the present utility model;

Fig. 2 is a drive mechanism scheme drawing of the present utility model;

Fig. 3 is a handlebar folded state scheme drawing of the present utility model;

Fig. 4 is a handlebar deployed condition scheme drawing of the present utility model;

Fig. 5 is a folded state scheme drawing before the cross bar of the present utility model;

Fig. 6 is a deployed condition scheme drawing before the cross bar of the present utility model;

Fig. 7 is a folded state scheme drawing behind the cross bar of the present utility model;

Fig. 8 is a deployed condition scheme drawing behind the cross bar of the present utility model;

Fig. 9 is a pedal deployed condition scheme drawing of the present utility model;

Figure 10 is a pedal folded state scheme drawing of the present utility model;

Figure 11 is the whole folded state scheme drawings of integral body of the present utility model.

Consult Fig. 1, bicycle body 10 of the present utility model comprises folding device 60 behind folding device 40 before the front-wheel 11, trailing wheel 12, shock absorbing apparatus 13, transmission device 14, handlebar folding device 20, head tube retractor device 30, cross bar, vehicle frame fixed head folding device 50, the cross bar, seat arm retractor device 70 and pedal folding device 80.

Consult Fig. 2, transmission device 14 is made up of gear transmission group 15, skeleton group 16, two axostylus axostyle contact pin 17, two axostylus axostyles 18 and axle bed 19.This gear transmission group 15 is set in main gear dish 151 and auxiliary gear dish 152 by a chain 156, and chain 155 is installed in linked gear dish 153 and driving cog wheel disc 154 in addition, and array configuration is Shape, its type of drive is: main gear dish 151 is located at posteroinferior auxiliary gear dish 152 by chain 156 transmissions, and transmission linked gear dish 153 is located at driving cog wheel disc 154 rotations at rear again by other chain 155 transmissions again.One end of two axostylus axostyles 18 is individually fixed in the axostylus axostyle contact pin 17 of skeleton group 16 1 sides and is fixed in the axostylus axostyle contact pin 17 of flexible arm 71 lower ends, seat; The other end of axostylus axostyle 18 is fixed on the axle bed 19.This transmission device 14 can shorten the distance between each gear, and makes when riding brisk laborsaving.

Consult Fig. 3 and Fig. 4, handlebar folding device 20 is made up of two handlebar elements 21, headstock telescopic pipe 22, rivet 23, chimeric block 24, embedding seat 25, chimeric block flange 26, chimeric contact pin 27 and chimeric eccentric shaft 28.The head end of two handlebar elements 21 is incorporated into the upper end of headstock telescopic pipe 22 respectively by rivet 23, the head end of one handlebar element 21 is provided with the chimeric block 24 of tool chimeric block flange 26, the head end of handlebar element 21 is provided with embedding seat 25 in addition, and the inboard tabling piece 27 that is provided with chimeric eccentric shaft 28; When two handlebar elements 21 launch the location, earlier two handlebar elements 21 are upwards carried along the rivet 23 that is welded in headstock telescopic pipe 22 upper ends, the chimeric block 24 of one handlebar element 21 is embedded in the embedding seat 25 of other handlebar element 21, after the chimeric block flange 26 of chimeric block 24 front ends hooks embedding seat 25, pull down chimeric contact pin 27 again, make the chimeric eccentric shaft 28 of chimeric contact pin 27 tail ends withhold chimeric block flange 26, make two handlebar elements 21 in conjunction with after firmly loosening; Otherwise cocked chimeric contact pin 27 makes chimeric eccentric shaft 28 unclamp chimeric block flange 26, can serve as that axle is folding with rivet 23 with 21 bendings of two handlebar elements.

Head tube retractor device 30 is made up of headstock telescopic pipe 22, flexible brake plate 31, braking eccentric shaft 32 and telescopic pipe wedge 33, at the opening part installing telescopic pipe wedge 33 of the outer tube 35 of headstock telescopic pipe 22, be provided with the flexible brake plate 31 that axle 32 is compiled in braking at a side suit tail end of the fixed link 34 of telescopic pipe wedge 33.When desiring to make headstock telescopic pipe 22 fixedly, need to stretch brake plate 31, make the braking eccentric shaft 32 of flexible brake plate 31 tail ends withhold telescopic pipe wedge 33, reach firm tight effect to pressing down; Otherwise the brake plate 31 that will stretch is upwards pulled, and braking eccentric shaft 32 unclamps telescopic pipe wedge 33, then headstock telescopic pipe 22 can upper and lower slip in flexible outer tube 35, adjusting length position.

Consult Fig. 5 and Fig. 6, before the cross bar folding device 40 by combined block before the cross bar 41, cross bar before connecting support 42, button 43, clasp 44 and detain piece 45 and form.Before the cross bar of cross bar leading portion 46 before the cross bar in combined block 41 and cross bar stage casing 47 connecting support 42 articulate by rivet 45, the position of connecting support 42 head end that is pivoted has the button of clasp 44 43 before these cross bar stage casing 47 corresponding cross bars.It is fashionable to desire unfolding buckle, needs before the mobile cross bar combined block 41 to embed before the cross bars in the connecting support 42, and rotary buckle makes 43 the clasp 44 of its front end fasten the button piece 45 of combined block 41 before the cross bar again, make its in conjunction with after firmly do not become flexible.

Vehicle frame fixed head folding device 50 comprises that vehicle frame 52 bottoms are provided with a blocks 55, and the one side is provided with perpendicular lug 56, the blocks 55 of vehicle frame 52 bottoms is in one side mat pin 58, establish tool U-shaped lug 56 with the headstock end and fixedly be mobile, the end in addition of this lug 56 is connected with union lever 53 by pin 57, the set Jiong shape pressure handle 51 of one side of the top of union lever 53 and vehicle frame 52 articulates, and between the both sides of the pressure handle 51 that combines with union lever 53, then be provided with for union lever 53 and wear the eccentric wheel 54 that end on the packing top.

Desire combination, horizontal vehicle frame 52 is upwards translated into uprightly, make pressure handle 51 downward simultaneously, Jiong shape pressure handle 51 is comprised union lever 53, promptly this Jiong shape is outwards opened, and its eccentric wheel 54 forms the packing top and ends.When desiring to make 50 bendings of vehicle frame fixed head folding device, pressure handle 51 to pressing down, is pushed away vehicle frame 52 forward again, then finish bending action.

Consult Fig. 7 and Fig. 8, behind the cross bar folding device 60 by combined block behind the cross bar 61, cross bar after connecting support 62, button 43, clasp 44 and detain piece 45 and form.Its structure with cross bar before folding device 40, it is fashionable to desire unfolding buckle, combined block 61 embeds behind the cross bars in the connecting support 62 behind the mobile cross bar, rotary buckle is 43 again, makes the clasp 44 of its front end fasten the button piece 45 of combined block 61 behind the cross bar, make its in conjunction with after firmly do not become flexible.

Seat arm retractor device 70 is made up of the flexible arm 71 in seat, flexible brake plate 31, braking eccentric shaft 32 and telescopic pipe wedge 33, and its structure is with headstock telescopic pipe device 30.When desire launches to make the flexible arm 71 in seat fixedly, can make the braking eccentric shaft 32 of flexible brake plate 31 tail ends withhold telescopic pipe wedge 33, make it firm in conjunction with not loosening with the brake plate 31 that stretches to pressing down.

Consult Fig. 9 and Figure 10, pedal folding device 80 is made up of loop bar 81, loop bar block 82, spring 83, bending piece 84, bending seat 85, latch 86, crank arm 87 and spring block 88.The top that pedal folding device 80 is included in crank arm 87 is provided with spring block 88, the outside of crank arm 87 then be arranged with can upper and lower displacement loop bar 81,88 of loop bar 81 and spring blocks are provided with spring 83, for pedal can be bent, be provided with the bending seat 85 of Jiong shape in the bottom of bent axle wall arm 87, bend piece 84 and be provided with the 86 fixing activities of mat latch in the bending seat 85, bending piece 84 stage casings are provided with backstop loop bar 81 unlimited downward loop bar blocks 82, and the tail end of bending piece 84 is provided with the pedal 89 that is vertical.When launching the location, loop bar 81 quilt cover pole spacing pieces 82 block and fix.During bending, loop bar 81 is up drawn, spring 83 is subjected to being located at the extruding of the spring block 88 on the crank arm 87 and compresses, to bend piece 84 again is that the center of circle bends along bending seat 85 and with latch 86, again loop bar 81 is decontroled, then spring 83 is loose because of the strength of extruding disappears, and loop bar 81 also rebounds thereupon, is subjected to bending the backstop of piece 84 and fixes.

Consult Figure 11, after folding device 60, seat arm retractor device 70 and pedal folding device 80 all fold behind folding device 40, vehicle frame fixed head folding device 50, the cross bar before handlebar folding device 20, head tube retractor device 30, the cross bar, form the little and less folded state that takes up room of volume, be convenient for carrying and place.

Claims (2)

1, a kind of folding bicycle, comprise bicycle body, front-wheel, trailing wheel, shock absorbing apparatus and transmission device, it is characterized in that also comprising folding device behind folding device before the handlebar folding device, head tube retractor device, cross bar, vehicle frame fixed head folding device, the cross bar, seat arm retractor device and pedal folding device; One end of two axostylus axostyles of transmission device be individually fixed in the axostylus axostyle contact pin of skeleton group one side and the axostylus axostyle contact pin of flexible arm lower end, seat on; The other end of axostylus axostyle is fixed on the axle bed, with the winding of gear transmission group; Two handlebar elements of this handlebar folding device rotate along the rivet that is welded in headstock telescopic pipe upper end, the chimeric block flange of the chimeric block front end of one handlebar element hooks the embedding seat of other handlebar element, and the tail end of the chimeric contact pin of this embedding seat is provided with chimeric volume axle and withholds this chimeric block flange; The cross bar combined block of this cross bar folding device embeds in the cross bar connecting support, and this button fastens the clasp of front end the button piece of this cross bar combined block; The crank arm front end of this pedal folding device is provided with spring block, is provided with spring in the loop bar, and this bending is packaged to be located in the bending seat, fixes with latch, and this bending piece front end is provided with the loop bar block, and this loop bar quilt cover pole spacing piece blocks and fixes; The open end that this head tube retractor device and this seat arm retractor device are included in flexible outer tube is provided with the telescopic pipe wedge, is provided with the flexible brake plate of braking eccentric shaft at a side suit tail end of the fixed link of this telescopic pipe wedge.

2, folding bicycle as claimed in claim 1 is characterized in that: this gear transmission group is set in main gear dish and auxiliary gear dish by chain, and chain is set in linked gear dish and driving cog wheel disc in addition, and array configuration is Shape.

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