CN2313836Y

CN2313836Y - Tricycle with front wheel drive

Info

Publication number: CN2313836Y
Application number: CN 97249858
Authority: CN
Inventors: 吴茂昌
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-11-19
Filing date: 1997-11-19
Publication date: 1999-04-14
Anticipated expiration: 2007-11-19

Abstract

The utility model discloses a tricycle with front wheel drive, which is formed by that two sets of drive systems are arranged on a common bicycle, and the common bicycle is additionally provided with an auxiliary wheel; the first set of drive system is formed by that the centre of a handle bar is provided with a chainwheel; a rotating type handle is swayed to drive a chain and a flywheel to work to drive a front wheel to rotate; the second set of drive system has a damping effect, and drives the front wheel to rotate via the work of a clutch transmission system on the wheel axle of the front wheel; the lower end of a support frame is additionally provided with the auxiliary wheel which can be collected and released freely. The utility model has the advantages of simple structure, easy use, time saving, labor saving and safety, is an ideal vehicle, and is a fitness apparatus which can cause the whole body to move.

Description

The f-w-d tricycle

The utility model relates to the bicycle field, particularly a kind of f-w-d tricycle.

Traditional bicycle is to rely on back-wheel drive, as run into go up a slope or ride period long, it is unable to do what one wishes just to seem, especially arm is strong and do not make.People's moving device of bicycle front-wheel body that begins one's study in recent years, Chinese patent 95233124.1 is on the front-wheel wheel shaft He in the wheel hub symmetrical five post power-transfer clutchs to be installed respectively, control sprocket wheel, the driving front-wheel rotates, the rocker shaft that has the spacing centering block of angle is installed on front-wheel and front fork vertical beam simultaneously, is rotated by tooth bar and gear drive front-wheel.Its design is complicated, and two cover front-wheel drives design again at a position simultaneously, easily cause operation chaotic, and the manufacturing cost costliness, and when fast running, the car body vibrations are excessive, and parts damage easily, maintenance difficult.

The purpose of this utility model is that design a kind ofly has front-wheel drive, fall the back of can arbitrarily going up a slope, move ahead, safe and reliable, can give full play to the f-w-d tricycle of arm effect.

The technical solution of the utility model is such: be provided with rotary type handle 1 on bicycle handle bar, crank 2 and horizontal handle 3, sprocket wheel 4 is equipped with at the position on front fork right side, handlebar stage casing, a protective cover 22 is established in its back, sprocket wheel 4 is provided with chain 5, and be connected with flywheel 6, flywheel 6 outsides are provided with idler sprockets 7, the chain 5 on its top is provided with derailleur 8, derailleur steel rope 9 is arranged on it, on front fork, be provided with power-transfer clutch rotary handle 10 above before the bicycle watt, which is provided with power-transfer clutch steel rope 11, on the left of the front wheel spindle power-transfer clutch is housed and pawls 12, power-transfer clutch ratchet 17 and clutch spring 18 are equipped with the power-transfer clutch key 19 that passes clutch spring 18 on the power-transfer clutch ratchet 17, a bumper 13 is established at the front-wheel two ends respectively, its lower end is set with drive link 14 and damping spring 15, and ratchet 16 is connected with drive link 14, and matches with power-transfer clutch ratchet 17.One auxiliary wheel 23 is housed on rear wheel support 24, and a pulley 26 is established in support 24 upper ends, and the car body cant beam is provided with hook 28, and its place ahead is established one and buckled pedal 29, establishes a seat-type tool box 30 on the car body crossbeam, and its front is provided with handrail 31.

The utility model handlebar can revert back to the ordinary bicycle handlebar.

The utility model design and reason, simple in structure, function is many, and speed is fast, and is easy to use, safe and reliable, the superior performance of trudging.

Accompanying drawing 1 is the utility model left view.

Accompanying drawing 2 is the utility model front views.

Accompanying drawing 3 is clutch configuration front views.

Accompanying drawing 4 is power-transfer clutch local structure lateral plans.

Accompanying drawing 5 is the utility model handlebar reset condition scheme drawings.

Below in conjunction with accompanying drawing the utility model is described in further detail:

The first cover drive system of the present utility model is: change the ordinary bicycle handle into connected and composed by rotary type handle 1, crank 2, horizontal handle 3 moveable cart handle, by two hand moving rotary type handles 1, drive sprocket wheel 4 and chain 5, transmission flywheel 6, the driving front-wheel rotates, and can also grasp bicycle directional simultaneously.

The second cover drive system of the present utility model is the vibrations drive systems, be separately installed with bumper 13 at the front-wheel two ends, connect a damping spring 15 below it, damping spring 15 both sides each with bumper 13 sockets one drive link 14, a ratchet 16 is adorned in its lower end, is provided with power-transfer clutch ratchet 17 on the front-wheel wheel shaft, and its outside is established a power-transfer clutch and pawled 12, by wheel one side clutch spring 18 is installed, power-transfer clutch ratchet 17 is provided with power-transfer clutch key 19.When the Uneven road of bicycle running, drive bumpers 13 effects by damping spring 15, drive ratchet 16 again through drive link 14, do unidirectional rotation thereby drive power-transfer clutch ratchet 17, drive front-wheel and rotate.When bicycle falls backward, the power-transfer clutch rotary handle 10 on watt top before twisting is located at by the priming of power-transfer clutch steel rope 11, is pawled power-transfer clutch and 12 power-transfer clutch ratchet 17 is pushed away ratchet clutch 16, slide to wheel hub middle part by power-transfer clutch key 19, fall after finishing bicycle.When bicycle readvanced, loosening power-transfer clutch rotary handle 10 by the effect of clutch spring 18, made power-transfer clutch ratchet 17 be meshed with ratchet 16, recovered to drive the front-wheel performance.

When not needing to use front-wheel drive, the operator can revert back to movable handlebar common handlebar state according to individual demand, rotate the derailleur rotary handle 32 that is located at power-transfer clutch rotary handle 10 opposites earlier, priming derailleur steel rope 9 drives derailleur 8, chain 5 is pulled out idler sprockets 7, unclamp the tieing screw on crank 2 and the horizontal handle 3 then, tighten screw behind group straight crank, the anti-handlebar rotation spring pin 21 that pin goes into to be located at the handlebar middle part gets final product.

The utility model is installed an auxiliary wheel 23 in support 24 lower ends, when the rider needs temporary term stop, can step on out auxiliary wheel and buckle pedal 29, break away from hook 28 by the steel rope 27 on the support extension spring 25 pulling pulleys 26, put down auxiliary wheel 23, can This vehicle stops frequently or travel at a slow speed.When not needing auxiliary wheel 23, step on close buckle pedal 29 hang over the hook 28 on, auxiliary wheel 23 is packed up forward.

The utility model is established a seat-type tool box 30 on the car body crossbeam, its front is provided with handrail 31, is convenient to the heads of a family and carries child.

Claims

1, a kind of f-w-d tricycle, constitute by ordinary bicycle and two cover front-wheel drives and auxiliary wheels, it is characterized in that: handlebar is provided with rotary type handle (1), crank (2) and horizontal handle (3), sprocket wheel (4) is equipped with at the position on front fork right side, handlebar stage casing, a protective cover (22) is established in its back, sprocket wheel (4) is provided with chain (5), and be connected with flywheel (6), flywheel (6) outside is provided with idler sprockets (7), the chain on its top (5) is provided with the derailleur (8) of band derailleur steel rope (9), watt top is provided with the power-transfer clutch rotary handle (10) that links to each other with front fork before the bicycle, which is provided with power-transfer clutch steel rope (11), power-transfer clutch pawl (12) is housed on the front-wheel axis, power-transfer clutch ratchet (17) and clutch spring (18), the power-transfer clutch key (19) that passes clutch spring (18) is housed on the power-transfer clutch ratchet (17), a bumper (13) is established at the front-wheel two ends respectively, its lower end is set with drive link (14) and damping spring (15), ratchet (16) is connected with drive link (14), and match with power-transfer clutch ratchet (17)

2, a kind of f-w-d tricycle according to claim 1, it is characterized in that: described auxiliary wheel (23), be located at rear wheel support (24) lower end, a pulley (26) is established in support (24) upper end, the car body cant beam is provided with hook (28), its the place ahead buckles pedal (29), has one to connect the steel rope (27) that buckles pedal (29) on the pulley (26);

3, a kind of f-w-d tricycle according to claim 1 is characterized in that: establish a seat-type tool box (30) on the crossbeam, be provided with handrail (31) in its front portion.