CN2196585Y

CN2196585Y - Front-wheel driving horizontal bicycle

Info

Publication number: CN2196585Y
Application number: CN 94219082
Authority: CN
Inventors: 马顺国
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-08-19
Filing date: 1994-08-19
Publication date: 1995-05-10
Anticipated expiration: 2004-08-19

Abstract

The utility model relates to a front-wheel driving horizontal bicycle. A front wheel shaft is formed into a hollow shaft, and the inner part of the front wheel shaft is provided with a pedal shaft. The right inner side of the pedal shaft is provided with a wheel disc gear, both ends of the pedal shaft are respectively provided with a pedal stick, and the outer side of the pedal shaft is matched with a front wheel drum. The right end of the front wheel drum is fixed with a flat tooth free wheel, and both ends of the flat tooth free wheel are fixed with front forks through nuts. The lower half part of each front fork is provided with a shaft bracket whose upper part is provided with a driven shaft, and the driven shaft is fixed with a small gear and a big gear which are respectively engaged with the wheel disc gear and the flat tooth free wheel. A sofa seat is arranged between a back vertical tube and a curved beam, which causes the riding to be comfortable. The barycenter of the bicycle is low, the riding is stable and safe, and the bicycle is suitable for the old people and the young children. The utility model has the advantages of high transmission efficiency, small size, light weight, and low cost. The bicycle is suitable for the citizen.

Description

Front-wheel driving horizontal bicycle

The utility model relates to a kind of bicycle, is a kind of f-w-d horizontal bicycle.

At present, the bicycle kind of selling on the market is a lot, be broadly divided into two big classes: a class is the pentagon vehicle frame, another kind of is camber beam or cant beam vehicle frame, these bicycles all are back-wheel drives, chain gear, turn by the pedal that is located at the middle part, the pedal axle drives, these car type of drive and saddle form are all basic identical, its center of gravity is at trailing wheel, the four limbs activity is firmly unfolded freely when guaranteeing to ride, and just vehicle seat must be kept certain height, saddle is less than normal, these bicycles have following problem: 1) center of gravity height, unstable, easily dangerous, fall the wounded every year and do not remember its number; 2) saddle is little, the load-bearing area is narrow and small, ride for a long time and can cause the generation of diseases such as prostate, forms such as some Inflation saddle for cycles, seat vehicle seat had also once appearred recently, though these new-type vehicle seats have increased area of thrust surface, have improved traveling comfort,, still adopt the back-wheel drive mode, the problems referred to above thoroughly do not solve.

The purpose of this utility model provides a kind of f-w-d horizontal bicycle, to solve center of gravity height, instability, easily fall down with saddle little, the uncomfortable problem of riding for a long time.

The purpose of this utility model is achieved in that common camber beam or cant beam bicycle handle bar, front fork, front-wheel, back vent, chain stay, trailing wheel, the hoop iron around a wood wheel, the pedal axle, it is constant that pedal turns basic composition, change front wheel spindle into hollow shaft, ball is combined with the pedal axle in the axle, the intrinsic left and right sides, pedal axle two ends pedal turns, the intrinsic wheel disc gear of Right Inboard, the outer ball of hollow shaft is combined with preceding wheel hub, wheel hub right-hand member screw thread is fixed with flat tooth flywheel, be fixed with front fork at the axle two ends by nut, lower part is provided with pedestal on the front fork right side, top ball is combined with driven shaft, the intrinsic miniature gears of right part on the driven shaft, the intrinsic big gear wheel of left part, it is meshed with wheel disc gear peace tooth flywheel respectively, when the pedal axle is just changeing, the wheel disc gear can drive miniature gears, driven shaft rotates, big gear wheel on the driven shaft can drive flat tooth flywheel, the drive front-wheel rotates, when pedal axle wraparound, flat tooth flywheel idle running front-wheel is unaffected, for the height that lowers the center of gravity, be provided with sofa frame between rear profile tube and camber beam or cant beam, be furnished with sofa seat above, people's seat is pedaled on sofa seat and is ridden.

This bicycle compared with prior art has the following advantages: 1) car load center of gravity reach, and also center of gravity is low, the steady safety of riding, and low to the artistic cycling requirement, old children is all suitable; 2) adopt sofa seat, take advantage of seat comfortable; 3) adopt gear transmission, driving efficiency height; 4) simple in structure, volume is little, and is in light weight, and cost is low; 5) front and back are in a basic balance removes car conveniently.

Be described further below in conjunction with accompanying drawing:

Fig. 1: f-w-d horizontal bicycle structural representation;

Fig. 2: f-w-d horizontal bicycle front elevation;

Fig. 3: hollow shaft detail drawing.

Fig. 4: driven shaft detail drawing;

Fig. 1--in 4: preceding standpipe (8), camber beam or cant beam (10), rear profile tube (12), chain stay (17), back vent (14) body frame structure for automotive form is same as the prior art basically, it is size reduction, handlebar (9) can be selected for use forward curved or to the palintrope handlebar, front fork (6) planform is constant, just the thickening of left and right sides fork is strengthened, in the lower part solid welding of front fork right side pedestal (20) is arranged, pedestal is straight tube shape, also can adopt reverse U shape, lean on the axle bowl on the pedestal, ball, retaining or bearing are combined with driven shaft (19), two ends, the driven shaft left and right sides are provided with the thread segment (28) that matches with nut, right part has the miniature gears shoulder (29) of band keyway, by the intrinsic miniature gears of key (5), left part is provided with the big gear wheel shoulder (31) of band keyway, by the intrinsic big gear wheel of key (21), the middle part is provided with outside thread (30), itself and retaining match, front fork (6) is fixed on the hollow shaft (22) by nut, the hollow shaft two ends are provided with axle bowl groove (25), outside face is provided with screw thread (26), the axle center is provided with pedal axis hole (27), lean on the axle bowl in the hole, retaining, ball is combined with pedal axle (2), (1) is turned by the intrinsic pedal of dog nail in pedal axle two ends, Right Inboard is by the intrinsic wheel disc gear of key (3), hollow shaft is outward by the axle bowl, ball, retaining is combined with preceding wheel hub (23), spoke is housed on the wheel hub, wheel hub right-hand member screw thread fit has flat tooth flywheel (24), wheel disc gear (3) and miniature gears (5), big gear wheel (21) is meshed with flat tooth flywheel (24), lean on bolt in rear profile tube (12) upper end, prop up and save the intrinsic thing case (13) of putting, solid welding has sofa frame (18) between rear profile tube (12) and camber beam (10), is furnished with above by spring, the sofa seat (11) that sponge is formed, back vent (14), chain stay (17), trailing wheel (16), the hoop iron around a wood wheel (7), (15), front-wheels (4) etc. are identical with existing part.

Claims

1, a kind of f-w-d horizontal bicycle, be to turn (1) by pedal, pedal axle (2), front-wheel (4), front fork (6), preceding standpipe (8), camber beam or cant beam (10), rear profile tube (12), back vent (14), chain stay (17), front and back the hoop iron around a wood wheel (7), (15), trailing wheel (16), handlebar (9) is formed, it is characterized in that: front wheel spindle is hollow shaft (22), ball is combined with pedal axle (2) in the axle, the intrinsic wheel disc gear of pedal axle Right Inboard (3), the intrinsic pedal in its two ends turns (1), ball is combined with preceding wheel hub (23) outside hollow shaft, its right-hand member screw thread is fixed with flat tooth flywheel (24), lean on the intrinsic front fork of nut (6) at the hollow shaft two ends, front fork (6) right side lower part is provided with pedestal (20), top ball is combined with driven shaft (19), the intrinsic miniature gears of right part (5) on the driven shaft, the intrinsic big gear wheel of left part (21), it is meshed with the peaceful tooth flywheel of wheel disc gear (3) (24) respectively, between rear profile tube (12) and camber beam or cant beam (10), be provided with sofa frame (18), be furnished with sofa seat (11) above, be provided with in rear profile tube (12) upper end and put thing case (13).

2, bicycle according to claim 1 is characterized in that: hollow shaft (23) two ends, the left and right sides are provided with axle bowl groove (25), and outside face is provided with screw thread (26), and the axle center is provided with pedal axis hole (27).

3, bicycle according to claim 1, it is characterized in that: driven shaft (19) two ends, the left and right sides are provided with thread segment (28), right part has the miniature gears shoulder (29) of band keyway, and left part is provided with the big gear wheel shoulder (31) of band keyway, and the middle part is provided with outside thread (30).