CN2395966Y

CN2395966Y - Bicycle

Info

Publication number: CN2395966Y
Application number: CN 99202933
Authority: CN
Inventors: 李虎; 李培训
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-03-06
Filing date: 1999-03-06
Publication date: 2000-09-13
Anticipated expiration: 2009-03-06

Abstract

The utility model relates to an improvement of existing tricycles, which is characterized in that a front wheel is big, and two rear wheels are small. The front wheel is used for driving, the two rear wheels are used for steering, and the front wheel can be moved by an inertia. Additionally, the horizontal distance between a saddle and a driving shaft is prolonged properly for properly lowering the saddle position. Sine the structural characteristics, the sizes of the length, the width and the height of the utility model are smaller than the tricycle with a homogeneous driving wheel. Therefore, the utility model has the advantages of small size, light weight, no-chain driving, convenient movement and placing and elegant and safe riding. Riders sitting on the saddle can straighten two legs to pedal the tricycle and can also touch the ground conveniently with the legs.

Description

A kind of new bicycle

The utility model is to the transformation of existing tricycle, is best suited for the tricycle that the elderly rides.

The elderly's walking-replacing tool mainly is a two-wheeled cycle now, and the minority the elderly who also has rides tricycle, and these two kinds of bicycles are not the desirable selections of the elderly, because the elderly's fitness reduces, trick is ineffective, and it is dangerous riding two-wheeled cycle, and it is just more comparatively safe to ride tricycle, but existing tricycle band a big container, volume ratio is bigger, although making of having is smaller, and still lorry after all, the inconvenience of riding is not attractive in appearance yet; Existing toy tricycle is too little, the elderly can not ride, exactly still can not riding greatly a bit that it is made, because the front-wheel of toy tricycle is a drive wheel is again wheel flutter, it is too big that its diameter is made, and is clipped in to influence between bicyclist's two legs to turn to, and front-wheel and front wheel spindle are fixed together, bicyclist's two legs will run up along with front-wheel one when car moved by inertia, can not stop for a rest on a walking tour, and are very uncomfortable.So existing tricycle neither the desirable instrument of riding of the elderly.

The purpose of this utility model is made " a kind of new bicycle " exactly, makes its f-w-d, two rear-axle steerings, and the reliable inertia of front-wheel rotates, the bicyclist is sitting in that two legs can stretch to pedal on the saddle, and bipod can conveniently be stepped on ground, light, safety, the tricycle that suitable the elderly rides again.

The purpose of this utility model is to realize like this.The one, the reliable again inertia of f-w-d rotates.During design the utility model, the front wheel spindle parts are designed to have the parts of flywheel, flywheel and forward wheel components are connected together, and axle drive shaft and front wheel spindle are unified, load onto left and right crank at the two ends of front wheel spindle like this, press pedal parts again at the other end of crank, step pedal front-wheel is rotated, and stop to step front-wheel behind the pedal and also can continue purpose by the inertia operation thereby just reach.Two is two rear-axle steerings.During design the utility model,, then fork leg and vehicle frame about front-wheel are fixed together again, it can not be rotated, so front-wheel also just can not turn to fork leg solder together about preceding facial canal and front-wheel.And stem and the bridge joint pipe is fixed together, and facial canal the inside before being through, the bridge joint pipe lower end Steering gear of fixedly going forward, rotate handlebar like this, preceding Steering gear just turns to synchronously with handlebar, rotate by the back Steering gear that turning to rope pulling to be contained in the trailing wheel pipe leg lower end in the facial canal behind two of the vehicle frames on preceding Steering gear then, thereby drive two rear-axle steerings.The 3rd, the design of location of saddle support.The utility model adopts existing bicycle saddle pattern, and the adjustment of location of saddle support is also the same with existing bicycle, realizes by adjusting the position of saddle pipe in the saddle standpipe.But suitably elongated the horizontal throw of saddle and axle drive shaft, and location of saddle support is lowerd as far as possible.The 4th, the adjustment of handlebar position.The utility model handlebar parts adopt the handlebar parts pattern of existing bicycle, and the adjustment of its position is the same with existing bicycle, are by adjusting handlebar parts standpipe the relative position in the bridge joint pipe is being realized.

The utility model has been compared following advantage with existing three-wheel vehicle.

1, safer.Because the horizontal throw of saddle of the present utility model and axle drive shaft is suitably elongated, the bicyclist is sitting on the saddle not only that two legs can stretch to pedal, and bipod can make things convenient for and all step on ground simultaneously, so when needing emergency braking, by the cooperation on front and back wheel rim brake and two foot-operated ground, the bicyclist is just safer.

2, volume is little in light weight.Because the utility model as toy tricycle direct drive front-wheel, is all lacked so the ratio that vehicle frame can be made has the three-wheel vehicle of equivalent diameter drive wheel; Because location of saddle support is all lower than the three-wheel vehicle with equivalent diameter drive wheel, so vehicle frame is just short.Because location of saddle support is low, when riding, people's center of gravity is just low, and it is narrower that back two-wheeled distance just can be made.Therefore, the three-wheel vehicle that the utility model volume ratio has the equivalent diameter drive wheel is all little, little then can make in light weight of volume.

3, remove destroy chain bar, direct drive.Because pedal of the present utility model is on front wheel spindle (being axle drive shaft) parts, pedal power is no longer used the chain transmission, so go to have disappeared chain, sprocket wheel become the direct drive front-wheel.

4, ride refined.Because the utility model outward appearance is as toy tricycle, rather than the existing three-wheel vehicle of picture, be with one to borrow case greatly, thus more refined when riding the utility model, just as sitting proud car than sitting double cab automobile scene.

Concrete structure of the present utility model has the following drawings to draw:

Fig. 1 is a front view of the present utility model.The utility model mainly contains following parts composition as can be seen from Figure 1: 1, pedal parts; 2, crank part; 3, front-wheel safety is when the mud plate member; 4, forward wheel components; 5, front wheel spindle parts; 6, preceding Steering gear; 7, the bridge joint pipe; 8, frame part; 9, handlebar parts; 10, turn to the rope parts; 11 saddle parts; 12, saddle standpipe; 13, saddle pipe; 14, backrest section, 15, the back of the body box part; 16, trailing wheel fender parts; 17, guide wheel component; 18, trailing wheel leg pipe; 19, trailing wheel linkage part; 20, hind axle parts; 21, back Steering gear; 22, rear wheel part is formed.

And frame part 8 can be divided into fork blade 8.1, preceding facial canal 8.2, upward two longerons 8.3, following pair longeron 8.4, saddle standpipe 8.5, entablatrance 8.6, cross sill 8.7, back facial canal 8.8 compositions.

Fig. 2 is a birds-eye view of the present utility model.It is mutual alignment and the relation between each parts of expression the utility model further.CC cutaway view among this figure is drawn by Fig. 4.

Fig. 3 is the BB cutaway view among Fig. 1.It mainly expresses the annexation of handlebar parts 9 and preceding Steering gear 6, and this figure is made up of following parts: 9, and the handlebar parts; 9.1, stem; 3.1, locknut; 3.2, head bearing; 9.2, heart screw mandrel; 9.3, heart nut; 8.2, preceding facial canal; 8.1.2, right fork leg; 3.3, lower bearing; 7, the bridge joint pipe; 6, preceding Steering gear; 8.1.1, left side fork leg; 10.1, turn to rope; 6.1, the spiral shell fourth.

Fig. 4 is a CC cutaway view among Fig. 2.It mainly expresses the annexation that turns between rope 10.1 and back Steering gear 21 and the rear wheel part 22, and this figure is made up of following parts: 4.1, and locknut; 4.2, head bearing; 8.6, entablatrance; 18, trailing wheel leg pipe; 8.8, facial canal behind the vehicle frame; 8.7, cross sill; 4.3, lower bearing; 10.1, guide rope; 4.4, compress the spiral shell fourth; 20, hind axle; 4.5, nut; 21, back Steering gear; 4.6, bearing, 4.7, nut; 22, rear wheel part.

Fig. 5 is an AA cutaway view in the utility model front view.It mainly expresses front wheel spindle parts 5 and forward wheel components 4, the annexation of fork blade parts 8.1 and crank part 2, and this figure is made up of following parts: 5.1, flywheel; 5.2, flywheel shaft; 5.3, the axle ring washer; 5.4, bearing seat; 5.5, bearing; 2.1, crank; 2.2, crank pin; 5.6, flat key; 5.7, front wheel spindle; 5.8, bearing; 5.9, bearing seat; 5.10, bolt; 5.11 left side fork is chewed contact pin; 5.12, flat key; 8.1.1, left side fork leg; 5.13, big gear wheel; 5.14, miniature gears; 5.15, support; 5.16, bearing; 8.12, preceding right fork leg; 5.17 right fork is chewed contact pin; 5.18, little axle; 5.19, bearing seat; 5.20, flat key; 5.21, bearing; 5.22, shaft retaining ring; 5.23, shaft retaining ring; 5.24, bearing; 5.25, bearing seat; 5.26, bearing; 5.27, big gear wheel; 5.28 the right side connects dish, and 4.1, the front wheel spindle skin; 5.29 a left side connects dish; 5.30, miniature gears.

Can find out that from Fig. 5-AA cutaway view front wheel spindle parts 5 are fixed together by front wheel spindle 5.7 and crank 2.1 usefulness crank pins 2.2; Chewing contact pin 5.11 and right fork by left side fork chews contact pin 5.17 and is fixed together with bolt 5.10 with preceding left side fork leg 8.1.1, preceding right fork leg 8.1.2 respectively; Connect dish 5.29 by a left side, the right side connects dish 5.28 and front wheel spindle skin 4.1 is fixed together; And the support 5.15 usefulness flat keys 5.20 of axle 5.18 and right fork are chewed contact pin 5.17 and are fixed together; Therefore axle 5.18 is dead axles, can not be around front wheel spindle 5.7 rotations.Moreover, when crank 2.1 rotations, drive big gear wheel 5.27, miniature gears 5.14, big gear wheel 5.13, miniature gears 5.30 rotations successively by 5.7 of fronts wheel spindle, and miniature gears 5.30 is fixed together with flywheel shaft 5.2, and flywheel 5.1, bearing seat 5.4 connect dish 5.29 to be fixedly connected sequentially again, so, miniature gears 5.30 has driven the rotation of front wheel spindle skin 4.1 by flywheel 5.2, has promptly driven the rotation of forward wheel components 4, so just reached the purpose that the reliable again inertia of f-w-d rotates.

From Fig. 3, be BB cutaway view and Fig. 4, be that the CC cutaway view can be found out: standpipe 9.1 usefulness of handlebar parts 9 are heart screw mandrel 9.2, be fixed together heart screw 9.3 with bridge joint pipe 7, bridge joint pipe 7 usefulness head bearings 3.2 and lower bearing 3.3 and preceding facial canal 8.2 are connected together, the lower end of bridge joint pipe 7 and preceding Steering gear 6 are fixed together, turn to rope 10.1 usefulness spiral shell fourths 6.1 tightly to be pressed on the preceding Steering gear 6, and turn to rope 10.1 two ends around crossing after the track adjusting wheel 17 respectively on the Steering gear 21 of back, and with spiral shell fourth 4.4 pushing down tightly; And rear wheel part 22 usefulness bearings 4.6 and nut 4.7 are contained on the hind axle 20, and hind axle 20 usefulness nuts 4.5 and back Steering gear 21 are fixed together, so handlebar parts 9 just turn to and drive bridge joint pipe 7 successively, preceding Steering gear 6, turn to rope 10.1, back Steering gear 21, hind axle 20, rear wheel part 22 turns to, and has therefore reached to rotate the purpose that handlebar makes rear-axle steering.

It mainly is frame part 8 that the utility model is compared with existing bicycle, front wheel spindle parts 5 and turn to the rope parts 10, preceding Steering gear 6, back Steering gear 21, back rest parts 14, back of the body box part 15, guide wheel component 17, different, all the other most parts are all general with existing bicycle part, and the utility model is easy to realize so existing bicycle originating firm is practiced midwifery, and other machine workss the utility model of practicing midwifery also only needs seldom investment, because general part can be bought, most non-general parts can be made by oneself.

Claims

A kind of new bicycle is by 1, pedal parts; 2, crank part; 3, front-wheel safety fender parts; 4, forward wheel components; 5, front wheel spindle parts; 6, preceding Steering gear; 7, the bridge joint pipe; 8, frame part; 9, handlebar parts; 10, turn to the rope parts; 11, saddle parts; 12, saddle standpipe; 13, saddle pipe; 14, backrest section; 15, back of the body box part; 16, trailing wheel fender parts; 17, guide wheel component; 18, trailing wheel leg pipe; 19, trailing wheel linkage part; 20, hind axle parts; 21, back Steering gear; 22, parts such as rear wheel part are formed, and it is characterized in that:

(1) left side fork leg 8.1.1 before frame part 8 has, preceding right fork leg 8.1.2, preceding facial canal 8.2 is gone up two longerons 8.3, following pair longeron 8.4, saddle standpipe 8.5, entablatrance 8.6, cross sill 8.7, back facial canal 8.8 is formed;
(2) front wheel spindle parts 5 have 5.1 flywheels; 5.2 flywheel shaft; 5.3 axle ring washer; 5.4 bearing seat; 5.5 bearing; 2.1 crank; 2.2 crank pin; 5.6 flat key; 5.7 front wheel spindle; 5.8 bearing; 5.9 bearing seat; 5.10 bolt; 5.11 left side fork is chewed contact pin; 5.12 flat key; 8.1.1 preceding left side fork leg; 5.13 big gear wheel; 5.14 miniature gears; 5.15 support; 5.16 bearing; 8.1.2 preceding right fork leg; 5.17 right fork is chewed contact pin; 5.18 little axle; 5.19 bearing seat; 5.20 flat key; 5.21 bearing; 5.22 shaft retaining ring; 5.23 shaft retaining ring; 5.24 bearing; 5.25 bearing seat; 5.26 bearing; 5.27 big gear wheel; 5.28 the right side connects dish; 4.1 front wheel spindle skin; 5.29 a left side connects dish; 5.30 miniature gears is formed;
(3) rear wheel part 22 turn to by 9, the handlebar parts; 7, the bridge joint pipe; 6, preceding Steering gear; 10.1, turn to rope; 21, back Steering gear; 20, hind axle; 22, rear wheel part is formed.