CN1428264A - Folding bicycle - Google Patents

Abstract

the folding bicycle is characterized by that the transverse of rear end of the crossbar has one or more than one horizontal axial hinges, rear fork is connected with crossbar by means of hinge, its handlebar vertical tube is formed from parallel two vertical tubes which are connected by means of cross beam, and between its lower end and front fork vertical tube the hinge and locking device are mounted, and the upper portions of two handlebar vertical tubes are respectively equipped with "L"-type handlebar crosstube. When it is folded, the rear fork can be downward and forward turned or pushed, the rear fork and rear wheel are positioned under the crossbar, the handlebar vertical tube is backward turned, and positioned on the crossbar, and its vertical tubes are arranged at two sides of the crossbar.

Description

A kind of folding bicycle

The present invention relates to a kind of folding bicycle.

Existing folding bicycle is all folding along vertical axis basically, folding like this after, though size shortens before and after the vehicle body, thickness increase, and during operating cost, limited people's use; Folding bicycle at the rear of car beam horizontally set falling hinger is also arranged, rotate back vent when folding downwards, forward, make back vent and trailing wheel be in the below of car beam, limited further dwindling of volume but fold rear cradling and handlebar like this, and be unsuitable for littler wheel.

The objective of the invention is to overcome the deficiency of above-mentioned folding bicycle, providing a kind of can realize folding quickly and easily, and littler, the portable folding bicycle of volume after folding.

The present invention finishes in the following way: the hinge that one or more horizontal shaft is arranged in car beam posterior transversal, intermediate axle housing is positioned at the middle and lower part of car beam, back vent is connected with Che Liang by hinge, stem is to be made of two standpipes arranged side by side, and there is crossbeam to be connected, hinge and latching device are arranged between its lower end and vertical tube of front fork, the handlebar transverse tube of " L " type is arranged respectively at the top of two stems, the vertical component of handlebar transverse tube is socketed in outside the stem, the stem rotation relatively of handlebar transverse tube; Rotate downwards, forward or the promotion back vent when folding, make back vent and trailing wheel be in the below of car beam; Rotate handlebar, make front fork and front-wheel Rotate 180 °, make front-wheel be in the below of car beam, to dwindle the length of car body, rotate stem backward, handlebar is folded on the car beam, two stems divide train beam both sides, rotate left and right sides handlebar transverse tube, make handlebar transverse tube and car body almost parallel; Between saddle and saddle pipe and saddle pipe bottom and the car beam hinge is arranged, rotate saddle pipe forward, it is folded on the stem, the chain inboard is provided with block on back vent or the car beam, to keep the tension force of folding rear chain.

Front fork shoulder or car beam front end can be established the hinge that front fork and front-wheel are rotated backward, rotate front fork and front-wheel backward, make it to be in the below of car beam; Can establish the clothes hanger that can fold with car body on the trailing wheel.

The present invention also can adopt following examples: be gear transmission between crank and the trailing wheel, transmission shaft connects by hinge or universal-joint at the main hinge place.

The technical scheme of the present invention's change is to establish breast wheel on main hinge, and breast wheel links to each other with flywheel with sprocket wheel respectively by chain, makes the influence that is not subjected to the chain degree of tightness when folding.

The present invention also can adopt following examples: front fork and back vent adopt the single pole structure, with further simplified structure, in this case, between vertical tube of front fork and the car beam be connected the employing ears and fist shape structure can reach purpose preferably.

That the present invention has is simple in structure, folding convenient, locking firmly, advantage such as good looking appearance.

Below in conjunction with drawings and Examples it is described further.

Fig. 1 is a front view of the present invention;

Fig. 2 is the front view after the present invention folds;

Fig. 3 is the birds-eye view after the present invention folds;

Fig. 4 is a front elevation of the present invention;

Fig. 5 is the front view of another embodiment of the present invention;

Fig. 6 is the front view after Fig. 5 folds;

Fig. 7 is a front view of establishing the embodiment of breast wheel on the main hinge of the present invention;

Fig. 8 is the front view after Fig. 7 folds;

Fig. 9, Figure 10 are respectively stems and the different embodiment of handlebar transverse tube latching device;

Figure 11, Figure 12 be respectively stem with headstock bowl group between the different embodiment that are provided with of hinge;

Figure 13 is the lateral plan that hinge and latching device are set between stem and the headstock bowl group;

Figure 14, Figure 15 are respectively the birds-eye vieies of the different embodiment of stem latching device;

Figure 16 is the birds-eye view that Figure 15 latching device is opened;

Figure 17 is the front elevation of another embodiment of latching device;

Figure 18 is the embodiment that hinge and latching device are set at the front fork shoulder;

Figure 19 is the enlarged drawing of Figure 18;

Figure 20 is the enlarged drawing of Figure 18 locking state;

Figure 21 is the birds-eye view of the embodiment of main hinge deflection of the present invention;

Figure 22 is the front view that hinge and latching device are set between Che Liang and preceding pipe;

Figure 23 is the front view after Figure 22 folds;

Figure 24 is the birds-eye view that front fork and back vent adopt the embodiment of single pole structure;

Figure 25 is the front elevation of Figure 24;

Figure 26 is that front fork and car beam adopt ears and fist shape structure bonded assembly front view;

Figure 27 be Figure 26 A-A to cutaway view;

Figure 28 is the front view that is provided with connecting rod between stem and the front fork;

Figure 29 is the front elevation of Figure 28;

Figure 30 is the front view of Figure 28 folded state;

Figure 31 is the birds-eye view after Figure 28 folds;

Figure 32 is the front view of latching device between saddle of the present invention and the saddle pipe;

Figure 33 is the front view of latching device between saddle pipe of the present invention and the car beam;

Figure 34, Figure 35 are the different embodiment of saddle pipe bottom latching device;

Figure 36 is the cutaway view that folded linkage is set between saddle and the saddle pipe;

Figure 37 is the front view that is provided with connecting rod between car beam of the present invention and the back vent;

Figure 38 is the front view of Figure 37 semi-collapsed condition;

Figure 39, Figure 40 are the cutaway views that folded linkage is set between saddle pipe and the back vent;

Figure 41 is the front view that the embodiment of spring is set on the main hinge;

Figure 42 is the front view after Figure 41 folds;

Figure 43 is that the present invention adopts the folding embodiment of four-bar mechanism;

Figure 44 is the front view of Figure 43 folded state;

Figure 45 is the front view that folding portable case and bag are arranged on the clothes hanger behind the present invention;

Figure 46 is the front view of Figure 45 semi-collapsed condition;

Figure 47 is the External view of portable case and bag;

Figure 48 is the front view of folding portable another embodiment of case and bag;

Figure 49 is the External view of the folding back of Figure 48 suitcase bag.

See Fig. 1, Fig. 2, Fig. 3, Fig. 4, rear crotch 2 is connected with car beam 1 by hinge 3, and intermediate axle housing 11 is in the Che Liang bottom; Stem 12 is made of two standpipes arranged side by side, and there is crossbeam to be connected, its lower end is connected with headstock bowl group with catch gear 101 by hinge 10, is with the handlebar transverse tube 112 of " L " type outside the top of two stems, and handlebar transverse tube 112 can rotate relative to stem 12; Rotate back vent downwards, forward when folding, make back vent and trailing wheel be in the below of car beam, the rotation handlebar makes front fork 3 and front-wheel Rotate 180 °, makes front-wheel be in the below of car beam, to dwindle the length of car body; Backward, rotate handlebar, handlebar is folded on the car beam, two standpipes divide train beam both sides, rotate left and right sides handlebar transverse tube 112, make handlebar transverse tube and car body almost parallel; Saddle 9 is connected by hinge 24 with saddle pipe 5, and saddle pipe 5 lower ends are connected by hinge 4 with the car beam, and saddle pipe and saddle can be folded to forward on the stem by hinge 4, and the rear crotch or the car beam of chain 7 inboards are provided with block 6, to keep the tension force of folding rear chain.

See Fig. 5, Fig. 6, the hinged strut bar 22 in saddle pipe lower end, this strut bar can provide support and locate to saddle pipe, on strut bar or the car beam catch gear can be arranged; The saddle pipe 4 outer flexible sleeves 21 that after folding, help holding that are with; Have on back vent or the rear axle and support 17, this support can be folding at trailing wheel respectively and the state opened under provide support to car body, make its vertically or substantially vertical ground.

See Fig. 7, Fig. 8, establish breast wheel 23 on the main hinge 3, breast wheel links to each other with flywheel with sprocket wheel respectively by chain; The car beam is made up of two parts, and leading portion 100 can stretch in back segment 111, reducing the length of folding aftercarriage, and can establish catch gear regulate before and after the collapsing length of section.

See Fig. 9, the handlebar transverse tube 112 of " L " type is arranged at stem 12 tops, and grip 113 is arranged outside it, the stem rotation relatively of the vertical component of handlebar transverse tube, catch gear 102 is arranged between the two, this catch gear is a button perpendicular to stem, and press push button makes it be lower than the internal diameter of handlebar transverse tube vertical component, can make the relative stem rotation of handlebar transverse tube, be provided with spring 115 between handlebar transverse tube 112 and the stem 12, so that operation, 114 is locating pin.

In Figure 10, top at stem 12, one button 105 is arranged, and nationality spring 136 keeps tension force, and the tube wall of the vertical component of stem 12 and handlebar transverse tube is porose 135, and slide block 118 can slide within it, button 105 tops are thinner, button 105 bottoms prop up slide block 118, make in its hole 135 that enters stem 12 tube walls, and the 114th, locating pin; Depress button, thinner position, button 105 tops enters the slide block present position, and slide block 117 skids off hole 135 according to the strength of spring, can make 112 relative stem 12 rotations of handlebar transverse tube, finishes the folding of handlebar.

See Figure 11, hinge 10 between stem and the vertical tube of front fork 14 is on lamp bracket packing ring 121, the opposite side of hinge 10 has lug 35 relatively on lamp bracket packing ring 123, there is certain tapering binding bolt 122 upper ends, there is groove vertical tube of front fork 14 upper ends, binding bolt 122 in vertical tube of front fork 14 will on retaining 120 and packing ring 121 tensioners, interior hexagonal or bihexagon 123 are arranged, so that fastening in the binding bolt 122 with spanner.

In Figure 12, the hinge 10 between stem and the vertical tube of front fork 14 is on last retaining 120, and the opposite side of hinge 10 has lug 35 relatively on last retaining 120, binding bolt 122 vertical tube of front fork 14 in will on keep off 120 tensioners.

See Figure 13, Figure 14, there is the part 36 of extending forwards, backwards two stem lower ends, extension one end is connected with headstock bowl group by hinge 10, one side of the other end is connected with a locking lever 38 by vertical hinge 37, the opposite side extension has projection 32, and the locking lever end is porose 34, and there is slit 130 at its middle part, in the slit 130 of the lug 35 wedging locking levers of headstock bowl group, projection is locked in the 32 wedging holes 34 during locking.

In Figure 15, Figure 16, there is cam 39 end of locking lever 38, and locking lever 38 clamps the extension and the headstock bowl group of two stem lower ends during locking cam.

See Figure 17, there is retaining nail 110 two stem lower ends, and the middle part of locking lever 38 contacts with the upper surface of lug 35, and its end contacts and wedging with the lower surface of stem lower end extension.

See Figure 18, Figure 19, Figure 20, between vertical tube of front fork 14 and the front fork 8 hinge 13 is arranged, locking cam 103 is arranged on the front fork 8, when pulling locking cam 103 downwards, press vertical tube of front fork 14 lower surfaces on the camming surface 133 on the locking cam, front fork and front-wheel are rotated backward; On when pulling locking cam 103, the hook 132 on the locking cam rise to the bait on the vertical tube of front fork 14 hole 134 and lock; Locking cam also can be located on the vertical tube of front fork 18 and make camming surface down.

See Figure 21, main hinge 3 has certain deflection with car beam 1 and rear crotch 2, and trailing wheel is folding to retrodeviate that two-wheel is had at Che Liangxia is certain overlapping thereby make, to reduce the length of folding aftercarriage.

See Figure 22, Figure 23,15 of car beam 1 and preceding pipes are provided with hinge 16 and latching device 104, and pipe and front fork before the rotation make front-wheel be in the below of car beam backward, and in this case, hinge 27 and latching device 108 can be established with the stem lower end in the vertical tube of front fork upper end.

Seeing Figure 23, is gear transmission between crank and the trailing wheel, and transmission shaft connects by hinge or universal-joint 26 at the main hinge place.

See Figure 23, Figure 24, brake lever 116 handlebar transverse tube rotation relatively, brake lever 116 is rotated in front and back, makes brake lever and car body almost parallel, to reduce the lateral dimension of folding aftercarriage.

See Figure 24, Figure 25, Figure 26, Figure 27, front fork 15 and back vent are respectively single pole, being connected between vertical tube of front fork and the car beam adopted ears 117 and fist shape structure 18, ears structure 117 can be partial to car beam one side, make it can pivot 180 °, thereby make the front fork front-wheel be in the below of car beam, to dwindle the length of car body.

See Figure 28, Figure 29, Figure 30, Figure 31, between front fork 8 and the ears structure 117 hinge 13 is arranged, there is extension backward the stem lower end, and connecting rod 30 is arranged between the front fork 8, be connected respectively with front fork with the stem extension by hinge 19,20, when rotating stem backward, but connecting rod 30 interlock front fork and front-wheels make it to be in the below of car beam, and front fork or stem are provided with latching device.

In Figure 28, Figure 30, be attached with on the saddle pipe 4 and guide and support handle 31, so that guiding and supporting after folding.

See Figure 32, Figure 33, saddle 9 connects with saddle pipe 5 by hinge 24, and latching device 106 is arranged on the saddle beam 25, and the tip on the latching device 106 can slip into the hole 131 on the saddle beam 25 and lock; Porose 139 on the car beam, the tip on the latching device 106 of the folding back of car body can slip in the hole 139, and makes the position locking of saddle pipe 4 after folding, so that guide and support.

See Figure 34, strut 22 1 ends of saddle pipe lower end connect with the car beam by hinge 125, and the other end passes through connecting rod 28 and hinge 127 connects with saddle pipe 5, and latching device 107 is arranged on it, and the tip on the latching device 107 slidably enters in the hole 140 on the saddle pipe and locks; Under when pulling latching device 107, the tip on the latching device 107 withdraws from, and then can fold saddle pipe and saddle forward.

In Figure 35, strut 22 upper ends connect with saddle pipe 5 by hinge 124, and the other end connects with connecting rod 29 by hinge 129, and connecting rod 29 connects with the car beam by hinge 128, and latching device 109 is on the car beam, and its tip can slip into the hole 131 on the strut bar 22 and lock; Under when pulling latching device 109, the tip on the latching device 109 withdraws from, and then can fold saddle pipe and saddle forward.

See Figure 36, steel cable 33 is arranged in the saddle pipe 5, steel cable 33 1 ends are connected with saddle, and the other end is connected with connecting rod 28 on car beam or the strut 22, and it is folding that saddle and saddle pipe can be linked simultaneously.

See Figure 37, Figure 38, the connecting rod 42,44 that interconnects by hinge 43 is arranged between car beam and back vent, and link to each other with back vent and car beam respectively by hinge 40,41,42,44 on connecting rod is provided with hinge 43 and spring 45, spring 45 lays respectively at the both sides of hinge 43 when folding and expansion, this can keep its state after folding or expansion thereby make back vent, is easy to carry; Can establish swing handle 46 on the connecting rod 42, so that realize folding and expansion by operation to swing handle 46.

See Figure 39, strut 22 upper ends connect with saddle pipe 5 by hinge 124, the other end connects with connecting rod 29 by hinge 129, connecting rod 29 connects with the car beam by hinge 128, its lower end connects gangbar 47 by hinge 49, and gangbar 47 links by hinge 48 and connecting rod 42, when folding saddle pipe or back vent, by gangbar 47, make back vent and saddle pipe realize that interlock is folding.

In Figure 40, the saddle pipe lower end connects with strut 22 by connecting rod 28, strut 22 connects with the car beam by hinge 125, its lower end connects gangbar 47 by hinge 49, gangbar 47 links by hinge 48 and connecting rod 42, when folding saddle pipe or back vent,, make back vent and saddle pipe realize that interlock is folding by gangbar 47.

See Figure 41, Figure 42, spring 54 is arranged between car beam and back vent, spring 54 lays respectively at the both sides of main hinge 3 when folding and expansion, to keep the state after folding or launching.

See Figure 28, Figure 30 and Figure 42, Figure 45, there is clothes hanger 50 the trailing wheel top, links to each other with back vent with the car beam respectively with hinge 49,52 by strut 51, and can fold with car body, and clothes hanger and trailing wheel after folding are tangent, does not exceed the scope of folding aftercarriage basically.

In Figure 43, Figure 44, adopt four bar fold mechanisms between car beam and the back vent, car beam and back vent link by hinge 55,56,57,58, promote back vent and trailing wheel when folding forward, downwards, make back vent and trailing wheel be in the below of car beam.

See Figure 45, dial chain device 60 with speed change on the trailing wheel, thereby can under the situation of omitting block, keep the tension force of folding front and back chain.

In Figure 46, use collapsible pedal 61, to reduce the width of folding aftercarriage.

See Figure 45, Figure 46, Figure 47, there is folding casing 59 back clothes hanger 50 tops, and the sidewall of casing 59 is telescopic ripple struction, when car body launches, are folded to clothes hanger 50 tops; Launch at the folding rear box 59 of car body, become and hold the portable case and bag that car body and size roughly do not exceed the car body scope.

See Figure 48, Figure 49, folding portable case and bag 59 are above the car beam, and when car body launched, folding box body was in car beam top; Launch in the folding back of car body, become the portable case and bag that hold car body.

Can be provided with spring at the same time or separately on each hinge and the latching device, so that operate and keep the state when folding or launching.

Car body after folding is roughly cuboid, fails to grow up in front and back wheel diameter sum, and height is roughly the distance of front-wheel lower end to the vertical tube of front fork top, the wide distance that is not more than between the two pedal outer ends.

Claims (10)

1. folding bicycle, comprise front fork (8), car beam (1), back vent (2), in car beam posterior transversal the hinge (3) of one or more horizontal shaft is arranged, rear crotch (2) is connected with Che Liang by hinge, when folding downwards, rotation or promote back vent forward, make back vent and trailing wheel be in the below of car beam, it is characterized in that:

A. stem (12) is made of two standpipes arranged side by side, and there is crossbeam to be connected, stem is connected with catch gear (101) by hinge (10) with headstock bowl group, the handlebar transverse tube (112) of " L " type is arranged respectively at the top of two stems, and the vertical component of handlebar transverse tube is socketed in outside the stem, the stem rotation relatively of handlebar transverse tube, catch gear is arranged between the two, the handlebar that rotates backward can make handlebar be folded on the car beam, and two standpipes divide train beam both sides;

B. saddle (9) is connected with catch gear by hinge (24) with saddle pipe (5), and saddle pipe (5) lower end is connected by hinge (4) with the car beam, and saddle pipe and saddle can be folded on the stem forward by hinge (4).

2. folding bicycle as claimed in claim 1 is characterized in that: the chain inboard is provided with more than one block (6) on back vent or car beam, and this block can be kept the tension force of chain after folding, makes that chain is unlikely to get loose.

3. folding bicycle as claimed in claim 1 is characterized in that: establish breast wheel (23) on the main hinge (3), breast wheel links to each other with flywheel with sprocket wheel respectively by chain.

4. folding bicycle as claimed in claim 1 is characterized in that: be gear transmission between crank and the trailing wheel, transmission shaft is divided into two sections, connects by hinge or universal-joint (26) at the main hinge place.

5. as each described folding bicycle of claim 1-4, it is characterized in that: the front fork shoulder is provided with hinge (13) and the latching device (103) that front fork and front-wheel are rotated backward.

6. as each described folding bicycle of claim 1-4, it is characterized in that: car beam front end is provided with hinge (16) and the latching device (104) that preceding pipe (15) and front fork and front-wheel are rotated backward.

7. as each described folding bicycle of claim 1-6, it is characterized in that: front fork or back vent are the single pole structure.

8. as each described folding bicycle of claim 1-7, it is characterized in that: the car beam is made up of two parts, and leading portion (100) can stretch in back segment (111).

9. as each described folding bicycle of claim 1-8, it is characterized in that: there is the back clothes hanger (50) that links to each other with back vent with the car beam respectively by strut (51) and hinge trailing wheel top, and this clothes hanger can fold with car body, fold afterwards and trailing wheel tangent.

10. as each described folding bicycle of claim 1-9, it is characterized in that: with folding casing (59), casing (59) launches in the folding back of car body, becomes the portable case and bag that hold car body on the car body.

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