Folding bicycle

Claim 2

A folding bicycle comprising: handlebar means comprising two handlebars ( 1 ) which are both foldable from an operative position to a storage position; girder means comprising a front pipe ( 11 ), a girder axle core ( 12 ) and a girder axle sleeve ( 13 ); a front fork standpipe ( 9 ); a front wheel ( 10 ); a rear wheel ( 32 ); a saddle ( 16 ); and pedal means, wherein said girder axle core ( 12 ), whose front end is connected with said front pipe ( 11 ), may move fore-and-aft inside the girder axle sleeve ( 13 ); the front fork standpipe ( 9 ) which extends through the girder front pipe ( 11 ) for supporting the front wheel ( 10 ), may rotate around an axis thereof; and the axis of the girder front pipe ( 11 ) is located rear of an axis of rotation of the front wheel ( 10 ) so that the front wheel ( 10 ) can be rotated and folded backward so as to extend along beside said girder axle core ( 12 ) when the handlebars are both folded in their storage positions.

Claim 3

A folding bicycle in accordance with claim 1 , wherein said handlebar means further comprises a handlebar axle core ( 7 ) a handlebar axle sleeve ( 8 ) in which the handlebar axle core ( 7 ) can move up and down; and wherein said saddle ( 16 ) comprises a saddle axle core ( 15 ) and saddle axle sleeve ( 14 ) in which the saddle axle core ( 15 ) can move up and down.

Claim 4

A folding bicycle comprising: handlebar means comprising handlebars ( 1 ); girder means comprising a front pipe ( 11 ), a girder axle core ( 12 ) and a girder axle sleeve ( 13 ); a front fork standpipe ( 9 ); a front wheel ( 10 ); a rear wheel ( 32 ); a saddle ( 16 ); and pedal means, wherein said girder axle core ( 12 ), whose front end is connected with said front pipe ( 11 ), may move fore-and-aft inside the girder axle sleeve ( 13 ); the front fork standpipe ( 9 ) which extends through the girder front pipe ( 11 ) for supporting the front wheel ( 10 ), may rotate around an axis thereof; and the axis of the girder front pipe ( 11 ) is located rear of an axis of rotation of the front wheel ( 10 ) so that the front wheel ( 10 ) can be rotated and folded backward, wherein said pedal means comprises: a) a medial axle ( 17 ), a crank ( 18 ), an octagonal tube ( 219 ), an octagonal core ( 220 ), a pedal folding axle ( 20 ), an assembly screw ( 222 ), a pedal ( 19 ), a spanner handle ( 26 ), a steel wire ( 25 ) and a spring ( 24 ), wherein said octagonal tube ( 219 ) is fixed to the crank ( 18 ), the assembly screw ( 222 ) encloses the folding axle ( 20 ), both of the octagonal tube ( 219 ) and the assembly screw ( 222 ) are screwed into the crank ( 18 ); the outer screw die of the crank ( 18 ) is coordinated with the inner screw die thereof; the assembly screw ( 222 ) and the crank ( 18 ) are fixed by a screw pin; the inflated part of the folding axle's ( 20 ) inner end is blocked between the octagonal tube ( 219 ) and the assembly ( 222 ) and can only rotate and cannot slide; the outer end of the folding axle ( 20 ) fixed by a screw pin, is connected with the axle of the pedal ( 19 ); octagons of inside tracks in both of folding axle's ( 20 ) inner end and the octagonal tube ( 219 ) are identical and may be matched with each other; and the octagonal core ( 220 ) slides in their inside track's octagons under the control of the spanner handle ( 26 ), the steel wire ( 25 ) and the spring ( 24 ) so that when the octagonal core ( 220 ) blocks the inside track's octagons of both octagonal tube ( 219 ) and the folding axle ( 20 ) at the same time, the folding axle ( 20 ) cannot rotate in the crank ( 18 ); or b) a medial axle ( 17 ), a crank ( 18 ) comprising a inner crank ( 521 ) and a outer crank ( 522 ), a pedal ( 19 ) and a folding axle ( 20 ), wherein said medial axle ( 17 ) is connected with the main body of the bicycle through its axle sleeve, the inner end of the crank ( 18 ) joints with the axle core of the medial axle ( 17 ), while its outer end joints with the pedal ( 19 ); said crank ( 521 ) and outer crank ( 522 ) are both fixed by screws; one end of the folding axle ( 20 ) is inserted into a columnar through hole formed in said outer crank ( 522 ), stretches out of the outer end thereof, and is connected with the rotating axle of the pedal ( 19 ); the crank ( 20 ) is connected with the pedal ( 19 ) through the folding axle ( 20 ); another end of the outer diameter of the folding axle's ( 20 ) is larger than the inner diameter of the columnar through hole positioned in the middle of the outer crank ( 522 ) which forms a T-shaped round hole together with a notch in the outer end of the inner crank ( 521 ); the folding axle ( 20 ) is wedged in the T-shaped round hole; the clamping angle of the crank ( 22 ) and the clamping angle of folding axle ( 21 ), which are teeth-like, lie in the inner side of the outer crank ( 522 ) and inner side of the folding axle ( 20 ), respectively; the clamping angle of the crank ( 22 ) and the clamping angle of the folding axle ( 21 ) are engaged with each other through the sliding and rotating of the folding axle ( 20 ) and when they are engaged, the folding axle ( 20 ) cannot rotate in the crank ( 18 ); a stuff granule ( 23 ) is arranged in the notch space of the inner crank ( 521 ) and a folding axle's central cavity ( 514 ) is positioned in the inner end of the folding axle ( 20 ); when the stuff granule ( 23 ) lies in the central cavity ( 514 ), the folding axle ( 20 ) can slide in an axial direction so that the clamping angle of the crank ( 22 ) and the clamping angle of the folding axle ( 21 ) are disengaged, and when the stuff granule ( 23 ) lies all around the folding axle, it will hold out against the folding axle ( 20 ) so that it cannot slide away, while the clamping angle of the crank ( 22 ) and the clamping angle of the folding axle ( 21 ) are engaged with each other so that the folding axle ( 20 ) cannot rotate; the position of the stuff granule ( 23 ) is adjusted by a spring ( 24 ), a spanner handle ( 26 ) and a steel wire ( 25 ); and said spring ( 24 ) is disposed between the stuff granule ( 23 ) and the crank's ( 18 ) inner wall; and said steel wire ( 25 ) is connected with both the stuff granule ( 23 ) and the spanner handle ( 26 ), one end of which is fastened in the fixed rotating axle ( 515 ) of the crank ( 18 ) and the other one being movable is rounded with a protection board ( 511 ).

Claim 5

A folding bicycle comprising: handlebar means comprising handlebars ( 1 ); girder means comprising a front pipe ( 11 ), a girder axle core ( 12 ) and a girder axle sleeve ( 13 ); a front fork standpipe ( 9 ); a front wheel ( 10 ); a rear wheel ( 32 ); a saddle ( 16 ); and pedal means, wherein said girder axle core ( 12 ), whose front end is connected with said front pipe ( 11 ), may move fore-and-aft inside the girder axle sleeve ( 13 ); the front fork standpipe ( 9 ) which extends through the girder front pipe ( 11 ) for supporting the front wheel ( 10 ), may rotate around an axis thereof; and the axis of the girder front pipe ( 11 ) is located rear of an axis of rotation of the front wheel ( 10 ) so that the front wheel ( 10 ) can be rotated and folded backward, wherein said pedal means comprises: a) a medial axle ( 17 ), a crank ( 18 ), an octagonal tube ( 219 ), an octagonal core ( 220 ), a pedal folding axle ( 20 ), an assembly screw ( 222 ), a pedal ( 19 ), a spanner handle ( 26 ), a steel wire ( 25 ) and a spring ( 24 ), wherein said octagonal tube ( 219 ) is fixed to the crank ( 18 ), the assembly screw ( 222 ) encloses the folding axle ( 20 ), both of the octagonal tube ( 219 ) and the assembly screw ( 222 ) are screwed into the crank ( 18 ); the outer screw die of the crank ( 18 ) is coordinated with the inner screw die thereof; the assembly screw ( 222 ) and the crank ( 18 ) are fixed by a screw pin; the inflated part of the folding axle's ( 20 ) inner end is blocked between the octagonal tube ( 219 ) and the assembly ( 222 ) and can only rotate and cannot slide; the outer end of the folding axle ( 20 ) fixed by a screw pin, is connected with the axle of the pedal ( 19 ); octagons of inside tracks in both of folding axle's ( 20 ) inner end and the octagonal tube ( 219 ) are identical and may be matched with each other; and the octagonal core ( 220 ) slides in their inside track's octagons under the control of the spanner handle ( 26 ), the steel wire ( 25 ) and the spring ( 24 ) so that when the octagonal core ( 220 ) blocks the inside track's octagons of both octagonal tube ( 219 ) and the folding axle ( 20 ) at the same time, the folding axle ( 20 ) cannot rotate in the crank ( 18 ); or b) a medial axle ( 17 ), a crank ( 18 ) comprising a inner crank ( 521 ) and a outer crank ( 522 ), a pedal ( 19 ) and a folding axle ( 20 ), wherein said medial axle ( 17 ) is connected with the main body of the bicycle through its axle sleeve, the inner end of the crank ( 18 ) joints with the axle core of the medial axle ( 17 ), while its outer end joints with the pedal ( 19 ); said crank ( 521 ) and outer crank ( 522 ) are both fixed by screws; one end of the folding axle ( 20 ) is inserted into a columnar through hole formed in said outer crank ( 522 ), stretches out of the outer end thereof, and is connected with the rotating axle of the pedal ( 19 ); the crank ( 20 ) is connected with the pedal ( 19 ) through the folding axle ( 20 ); another end of the outer diameter of the folding axle's ( 20 ) is larger than the inner diameter of the columnar through hole positioned in the middle of the outer crank ( 522 ) which forms a T-shaped round hole together with a notch in the outer end of the inner crank ( 521 ); the folding axle ( 20 ) is wedged in the T-shaped round hole; the clamping angle of the crank ( 22 ) and the clamping angle of folding axle ( 21 ), which are teeth-like, lie in the inner side of the outer crank ( 522 ) and inner side of the folding axle ( 20 ), respectively; the clamping angle of the crank ( 22 ) and the clamping angle of the folding axle ( 21 ) are engaged with each other through the sliding and rotating of the folding axle ( 20 ) and when they are engaged, the folding axle ( 20 ) cannot rotate in the crank ( 18 ); a stuff granule ( 23 ) is arranged in the notch space of the inner crank ( 521 ) and a folding axle's central cavity ( 514 ) is positioned in the inner end of the folding axle ( 20 ); when the stuff granule ( 23 ) lies in the central cavity ( 514 ), the folding axle ( 20 ) can slide in an axial direction so that the clamping angle of the crank ( 22 ) and the clamping angle of the folding axle ( 21 ) are disengaged, and when the stuff granule ( 23 ) lies all around the folding axle, it will hold out against the folding axle ( 20 ) so that it cannot slide away, while the clamping angle of the crank ( 22 ) and the clamping angle of the folding axle ( 21 ) are engaged with each other so that the folding axle ( 20 ) cannot rotate; the position of the stuff granule ( 23 ) is adjusted by a spring ( 24 ), a spanner handle ( 26 ) and a steel wire ( 25 ); and said spring ( 24 ) is disposed between the stuff granule ( 23 ) and the crank's ( 18 ) inner wall; and said steel wire ( 25 ) is connected with both the stuff granule ( 23 ) and the spanner handle ( 26 ), one end of which is fastened in the fixed rotating axle ( 515 ) of the crank ( 18 ) and the other one being movable is rounded with a protection board ( 511 ).

Claim 6

A folding bicycle in accordance with claim 3 wherein said handlebar means comprises a pedestal ( 3 ), right and left handlebars ( 1 ) and a handlebar axle core ( 7 ) through which said pedestal ( 3 ) is vertically connected with the upper end of the front fork standpipe ( 9 ), and wherein said handlebar means further comprises: two gibbous axle sleeves ( 2 ) connected with the right and left ends of the pedestal ( 3 ) respectively, wherein said two handlebars ( 1 ) are separated from each other, are used as axle cores to be fitted in with the gibbous axle sleeves ( 2 ) accordingly, and can slide in the said gibbous axle sleeves ( 2 ); spring bolts ( 4 ) arranged at the side of the gibbous axle sleeves ( 2 ) and keyholes ( 451 ) being in the corresponding position of the handlebars ( 1 ), wherein the beveled edge of the spring bolt ( 4 ) faces toward the middle of the pedestal ( 3 ), the cross section of the gibbous axle sleeves ( 2 ) is in the gibbous shape and that of the handlebars ( 1 ) is in the shape of a square, and the handlebars ( 1 ) are located in the gibbous axle sleeves ( 2 ); a bulgy arched bridge ( 431 ) positioned on the gibbous axle sleeves ( 2 ), through which a brake handle 6 can pass; and a fixed screw ( 5 ) on the gibbous axle sleeves ( 2 ), wherein when the bicycle is outspreaded, the gripping sections of the two handlebars ( 1 ) lie in one straight line, while the non-gripping sections thereof which are parallel with each other and form the same angle with the straight line are put into the bulged axle sleeve ( 2 ) which are staggered so that two handlebars ( 1 ) interlace after they move to the middle; or a U-shaped frame comprising U-shaped grooves ( 302 ), handlebar folding axles ( 303 ), and spring bolts ( 4 ), wherein the two handlebars ( 1 ) are mounted into said U-shaped grooves ( 302 ) having openings upward at the two ends of the pedestal ( 3 ) respectively and fixed by the folding axle ( 303 ); the gripping sections of the two handlebars ( 1 ) fall into one straight line, while non-gripping sections in the U-shaped grooves ( 302 ) staggered and are angled in the same direction as the straight line; and the two handlebars ( 1 ) can be folded in stagger when they are turned upward and to the middle in the U-shaped frame.

Claim 7

A folding bicycle in accordance with claim 3 , wherein said handlebar means further comprises a handlebar axle core ( 7 ) and a handlebar axle sleeve ( 8 ) in which the handlebar axle core ( 7 ) can move up and down; and wherein said saddle ( 16 ) comprises a saddle axle core ( 15 ) and a saddle axle sleeve ( 14 ) in which the saddle axle core ( 15 ) can move up and down.

Claim 8

A folding bicycle in accordance with claims 4 , wherein said handlebar means further comprises a handlebar axle core ( 7 ) and a handlebar axle sleeve ( 8 ) in which the handlebar axle core ( 7 ) can move up and down; and wherein said saddle ( 16 ) comprises a saddle axle core ( 15 ) and a saddle axle sleeve ( 14 ) in which the saddle axle core ( 15 ) can move up and down.

Claim 9

A folding bicycle comprising: handlebar means comprising handlebars ( 1 ); girder means comprising a front pipe ( 11 ), a girder axle core ( 12 ) and a girder axle sleeve ( 13 ); a front fork standpipe ( 9 ); a front wheel ( 10 ); a rear wheel ( 32 ); a saddle ( 16 ); and pedal means, wherein said girder axle core ( 12 ), whose front end is connected with said front pipe ( 11 ), may move fore-and-aft inside the girder axle sleeve ( 13 ); the front fork standpipe ( 9 ) which extends through the girder front pipe ( 11 ) for supporting the front wheel ( 10 ), may rotate around an axis thereof; and the axis of the girder front pipe ( 11 ) is located rear of an axis of rotation of the front wheel ( 10 ) so that the front wheel ( 10 ) can be rotated and folded backward, wherein said handlebar means comprises a pedestal ( 3 ), right and left handlebars ( 1 ) and a handlebar axle core ( 7 ) through which said pedestal ( 3 ) is vertically connected with the upper end of the front fork standpipe ( 9 ), wherein said handlebar means further comprises: two gibbous axle sleeves ( 2 ) connected with the right and left ends of the pedestal ( 3 ) respectively, wherein said two handlebars ( 1 ) are separated from each other, are used as axle cores to be fitted in with the gibbous axle sleeves ( 2 ) accordingly, and can slide in the said gibbous axle sleeves ( 2 ); spring bolts ( 4 ) arranged at the side of the gibbous axle sleeves ( 2 ) and keyholes ( 451 ) being in the corresponding position of the handlebars ( 1 ), wherein the beveled edge of the spring bolt ( 4 ) faces toward the middle of the pedestal ( 3 ), the cross section of the gibbous axle sleeves ( 2 ) is in the gibbous shape and that of the handlebars ( 1 ) is in the shape of a square, and the handlebars ( 1 ) are located in the gibbous axle sleeves ( 2 ); a bulgy arched bridge ( 431 ) positioned on the gibbous axle sleeves ( 2 ), through which a brake handle 6 can pass; and a fixed screw ( 5 ) on the gibbous axle sleeves ( 2 ), wherein when the bicycle is outspread, the griping sections of the two handlebars ( 1 ) lie in one straight line, while the non-griping sections thereof which are parallel with each other and form the same angle with the straight line are put into the bulged axle sleeve ( 2 ) which staggered so that two handlebars ( 1 ) may be interlaced after they move to the middle; or a U-shaped frame comprising U-shaped grooves ( 302 ), handlebar folding axles ( 303 ), and spring bolts ( 4 ), wherein the two handlebars ( 1 ) are mounted into said U-shaped grooves ( 302 ) having openings upward at the two ends of the pedestal ( 3 ) respectively and fixed by the folding axle ( 303 ); the griping sections of the two handlebars ( 1 ) fall into one straight line, while non-griping sections in the U-shaped grooves ( 302 ) are staggered and are angled in the same direction as the straight line; and the two handlebars ( 1 ) can be folded into a staggered configuration when they are turned upward and to the middle in the U-shaped frame.

Claim 10

A folding bicycle comprising: handlebar means comprising handlebars ( 1 ); girder means comprising a front pipe ( 11 ), a girder axle core ( 12 ) and a girder axle sleeve ( 13 ); a front fork standpipe ( 9 ); a front wheel ( 10 ); a rear wheel ( 32 ); a saddle ( 16 ); and pedal means, wherein said girder axle core ( 12 ), whose front end is connected with said front pipe ( 11 ), may move fore-and-aft inside the girder axle sleeve ( 13 ); the front fork standpipe ( 9 ) which extends through the girder front pipe ( 11 ) for supporting the front wheel ( 10 ), may rotate around an axis thereof; and the axis of the girder front pipe ( 11 ) is located rear of an axis of rotation of the front wheel ( 10 ) so that the front wheel ( 10 ) can be rotated and folded backward, wherein said handlebar means comprises a pedestal ( 3 ), right and left handlebars ( 1 ) and a handlebar axle core ( 7 ) through which said pedestal ( 3 ) is vertically connected with the upper end of the front fork standpipe ( 9 ), wherein said handlebar means further comprises: two gibbous axle sleeves ( 2 ) connected with the right and left ends of the pedestal ( 3 ) respectively, wherein said two handlebars ( 1 ) are separated from each other, are used as axle cores to be fitted in with the gibbous axle sleeves ( 2 ) accordingly, and can slide in the said gibbous axle sleeves ( 2 ); spring bolts ( 4 ) arranged at the side of the gibbous axle sleeves ( 2 ) and keyholes ( 451 ) being in the corresponding position of the handlebars ( 1 ), wherein the beveled edge of the spring bolt ( 4 ) faces toward the middle of the pedestal ( 3 ), the cross section of the gibbous axle sleeves ( 2 ) is in the gibbous shape and that of the handlebars ( 1 ) is in the shape of a square, and the handlebars ( 1 ) are located in the gibbous axle sleeves ( 2 ); a bulgy arched bridge ( 431 ) positioned on the gibbous axle sleeves ( 2 ), through which a brake handle 6 can pass; and a fixed screw ( 5 ) on the gibbous axle sleeves ( 2 ), wherein when the bicycle is outspread, the griping sections of the two handlebars ( 1 ) lie in one straight line, while the non-griping sections thereof which are parallel with each other and form the same angle with the straight line are put into the bulged axle sleeve ( 2 ) which staggered so that two handlebars ( 1 ) may be interlaced after they move to the middle; or a U-shaped frame comprising U-shaped grooves ( 302 ), handlebar folding axles ( 303 ), and spring bolts ( 4 ), wherein the two handlebars ( 1 ) are mounted into said U-shaped grooves ( 302 ) having openings upward at the two ends of the pedestal ( 3 ) respectively and fixed by the folding axle ( 303 ); the griping sections of the two handlebars ( 1 ) fall into one straight line, while non-griping sections in the U-shaped grooves ( 302 ) are staggered and are angled in the same direction as the straight line; and the two handlebars ( 1 ) can be folded into a staggered configuration when they are turned upward and to the middle in the U-shaped frame.

Claim 11

A folding bicycle in accordance with claim 7 , wherein said handlebar means further comprises a handlebar axle core ( 7 ) and a handlebar axle sleeve ( 8 ) in which the handlebar axle core ( 7 ) can move up and down; and wherein said saddle ( 16 ) comprises a saddle axle core ( 15 ) and a saddle axle sleeve ( 14 ) in which the saddle axle core ( 15 ) can move up and down.