CN2071622U

CN2071622U - Hand-and-foot-driven front wheel type folding bicycle

Info

Publication number: CN2071622U
Application number: CN 90216628
Authority: CN
Inventors: 邹爽
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-07-13
Filing date: 1990-07-13
Publication date: 1991-02-20

Abstract

In the utility model, the wheel axle of a large-diameter wheel is provided with a chain wheel and a pedal crank. Two vertical rods which are above the wheel and take the wheel axle as supporting point are provided with a short axle provided with two fly wheels and one gear wheel. The fly wheels and the gear wheel at the both ends of the short axle are respectively connected with the chain wheel and the fly wheel on the front wheel of a bicycle via a chain. The fly wheel in the middle of the short axle is connected with the chain wheel which is fixed to an axle concurrently used as a handle bar via a chain. The long axle concurrently used as the handle bar is supported by the two vertical rods which support the short axle and cranks are respectively installed at the both ends of the long axle. Thus, the hands and feet can simultaneously drive the bicycle to move forward. The rear body of the bicycle which is made up with the rear wheel and the carrier of the bicycle can support the vertical rod on the lower part of the inclined rod of the saddle of the bicycle as axis to fold toward the direction of the front wheel. The diameter of the rear wheel is about half of the diameter of the front wheel. The utility model enables a bicycler to keep balance between work and leisure and raises the speed of the bicycle and is convenient to carry.

Description

Hand-and-foot-driven front wheel type folding bicycle

The utility model belongs to the articles for daily use field, relates to a kind of folding bicycle, and particularly a kind of front-wheel trick is also driven the formula folding bicycle.

Present bicycle is mainly depended merely on foot-operated the driving, and climbing or when travelling at a distance often makes cyclist's both legs ache and moves the power deficiency, has influenced the speed of a motor vehicle greatly.In addition, because car body is longer, band car stair activity also has inconvenience.The utility model purpose is to overcome above-mentioned weak point, provides a kind of front-wheel at car to drive the folding bicycle that advances simultaneously with trick.

The utility model is finished as follows:

Driving system: on the major axis, the bigger front-wheel of a diameter is installed by the bearing supporting.Peace one flywheel on the right floral disc of front-wheel central siphon.On the axle in front-wheel left side, fix a hinge wheel.On the axle in the sprocket wheel and the flywheel outside, respectively with two vertical rods perpendicular to the ground of bearing supporting.Foot-operated crank is equipped with at the two ends of axle respectively.In the vertical rod on wheel top, adorn a minor axis by the bearing supporting.The both sides of minor axis, with sprocket wheel, the cooresponding position of flywheel on, install respectively and its flywheel and gear that links with chain.On the position that the minor axis line of centers is taken back, refill a flywheel.Do the major axis that handlebar is used at two fixed respectively cross bars in vertical rod top with bearing supporting double.Fix second sprocket wheel on this axle, and link to each other with the flywheel in the middle of on chain and the following minor axis, a crank is installed at the two ends of major axis respectively.Like this, when the crank that drives top or bottom moved in a circle, minor axis all can rotate through the transmission of driving system, then, and the transmission of flywheel on gear, chain and the wheel of minor axis opposite side and make wheel fly to turn over.

Body system: the cross bar middle part above the minor axis that three flywheels are housed, fixed one horizontal main beam transverse, the vertical shaft of its terminal vertical ground can freely rotate in axle sleeve.The fixed again horizontal gird of axle sleeve, the end in addition of horizontal gird joins to front-wheel bevelled pole with top, and intermediate sleeve one pull bar of this pole is propped vehicle seat.The middle part of brace, a fixed bottom is equipped with the vertical rod of pedal.Sleeve free to rotate is equipped with in the outside of vertical rod.Sleeve and bicycle back fork and shelf are fixed.Be equipped with back wheels of vehicle on the bicycle back fork.Be equipped with car rack pole on the hind axle.Like this, Che Houti can the car body vertical rod be folded to the car front-wheel for axle.Back wheel diameter is to be advisable less than 1/2 of front-wheel.

Below with reference to accompanying drawing the utility model is further described:

Fig. 1 is the utility model body construction sketch.

Fig. 2 is the utility model drive system structure figure.

Driving system:, on the major axis (3), adorn a front-wheel (4) that constitutes by cover tire, steel ring, width of cloth bar etc. by Steel bowl bearing system (1), (2) supporting with reference to Fig. 1, Fig. 2.On the right floral disc of front-wheel central siphon (5), with the flywheel (6) that uses on present bicycle of threaded connection.On axle, fix a sprocket wheel (7) that diameter is bigger near the front-wheel left side.On the axle in sprocket wheel (7) and flywheel (6) outside, be vertical rod (10), (11) of vertical angle with fixed two of bearing (8), (9) substantially with ground respectively.The fixing respectively foot-operated crank (12) in the two ends of axle (3), (13).On the vertical rod (10) on wheel (4) top, (11), adorn a minor axis (16) by Steel bowl bearing (14), (15) supporting.On the position vertical with sprocket wheel (7), flywheel (6), install and its flywheel (19) with chain (17), (18) corresponding binding, gear (20) respectively the both sides of minor axis (16).Compile at minor axis (16) line of centers on the position on a left side, refill a flywheel (21).The upper end of vertical rod (10), (11) is equipped with the major axis (25) by Steel bowl bearing (23), (24) supporting respectively.On major axis (25) position vertical with following flywheel (21), a fixed bigger sprocket wheel (26) of diameter that links with chain (30) with flywheel (21).Major axis (25) can doublely be made handlebar and use, the fixed cranker (27) respectively of its two ends, (28).Like this, when stepping crank (12), (13) when moving in a circle, through sprocket wheel (7), chain (17), flywheel (19) transmission, just transmission thereupon of minor axis (16); When shaking crank (27), (28) when moving in a circle, rotate through sprocket wheel (26), chain (30), flywheel (21), minor axis (16) also rotates thereupon.The rotation of minor axis (16) through fixed gear (20), chain (18), flywheel (6) transmission, makes car front-wheel (4) fly to turn over again.Because flywheel has the effect of unidirectional transmission, so driving system both can drive simultaneously in trick, also can drive respectively, thereby the cyclist be struck a proper balance between work and rest and multiplexing dynamic force.

Body system: on two vertical rods (10) on minor axis (16) top, (11), fixed cross bar (22).Middle part in cross bar (22), fixed horizontal main beam transverse (29), the vertical shaft of its terminal vertical ground can freely rotate in axle sleeve (31).The fixed again horizontal gird of axle sleeve (31) (32).The end in addition of horizontal gird (32) and top are to front-wheel bevelled pole (33) concrete mutually.Intermediate sleeve one pull bar (34) of pole (33) is propped vehicle seat (35).The bottom vertical rod (36) of pole (33) with the close height of axletree (3) on be angle perpendicular to the ground.Time automobile-used plane pedal (37) fixed one is kept supplying on wheel diameter 1/4 height in the bottom of vertical rod (36) before approximately.The pact free to rotate sleeve contour with it (38) is equipped with in the outside of vertical rod (36).Car fork (40) and car rack (41) that back wheels of vehicle (39) is housed are fixed with the bottom and the top of sleeve (38) respectively.Like this, Che Houti can vertical rod (36) be the front-wheel (4) that axle is folded to car promptly.The diameter of trailing wheel (39) is to be advisable less than 1/2 of front-wheel (4).Axle sleeve (31) is fixedly linked with cant beam (42) with the top of vertical rod (36).

Sprocket wheel (7), (26) can be made into different series.The diameter of sprocket wheel (7) and flywheel (6) when sprocket wheel (26) all should be greater than 2 with the diameter ratio of (6).Whole locomotive body is a tube material.

Sleeve (38) and vertical rod (36) middle part is corresponding opens two apertures, and steel rod (43), (44) can freely be injected or extract, so that Che Houti does not rotate in advancing.

Claims

1, a kind of front-wheel trick and drive the formula folding bicycle is characterized in that:

A, driving system: on the axle (3) of Steel bowl bearing supporting, adorn a front vehicle wheel (4); On the right floral disc of wheel central siphon (5), with the fixing flywheel (6) of screw thread; Right side in axle (3) is equipped with vertical rod perpendicular to the ground (11) and crank (13) with bearing (9) supporting more successively; Left side in axle (3), the sprocket wheel (7) that fixed diameter is bigger successively again, with the vertical rod perpendicular to the ground (10) and the crank (12) of bearing (8) supporting; On the vertical rod (10) on wheel (4) top, (11), be equipped with by the fixing minor axis (16) of flywheel (19), (21), gear (20) successively on its of Steel bowl bearing (14), (15) supporting; Chain (17), (18) make flywheel (19) and sprocket wheel (7), gear (20) and the vertical binding of flywheel (6) respectively; The upper end of vertical rod (10), (11) is equipped with the major axis (25) that can doublely do the handlebar use by Steel bowl bearing (23), (24) supporting respectively; Axle (25) is gone up fixed diameter more greatly with the sprocket wheel (26) of chain (30) with the vertical binding of flywheel (21); Crank (27), (28) are equipped with in axle (25) two ends;

B, body system: cross bar (22) is cemented in two vertical rods (10), (11) on minor axis (16) top; The main beam transverse (29) that the middle part of cross bar (22), fixed its end can freely rotate in axle sleeve (31); Horizontal gird (32) two ends respectively with axle sleeve (31) and brace (33) concrete mutually; The centre of brace (33) has been with the pole (34) of propping vehicle seat (35); Brace (33) bottom is the vertical rod (36) of the fixed stretcher in bottom (37); Vertical rod (36) outside is a highly close with it sleeve (38) free to rotate; The car of trailing wheel (39) fork (40) and shelf (41) respectively with bottom, the top concrete mutually of sleeve (38); Axle sleeve (31) is fixedly connected by cant beam (42) with the top of vertical rod (36).

2, front-wheel trick according to claim 1 and drive the formula folding bicycle, it is characterized in that: the back wheels of vehicle diameter should be less than 1/2 of preceding wheel diameter.

3, front-wheel trick according to claim 1 and drive the formula folding bicycle, it is characterized in that: sprocket wheel (7), (26) separately all should be less than 2 with the diameter ratio of flywheel (6).

4, front-wheel trick according to claim 1 and drive the formula folding bicycle, it is characterized in that: two apertures are opened at the middle part of sleeve (38) and vertical rod (36) accordingly, and steel rod (43), (44) can freely be injected or extract.