CN2046098U

CN2046098U - Pedal bicycle

Info

Publication number: CN2046098U
Application number: CN89210144U
Authority: CN
Inventors: 崔春根
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-02-20
Filing date: 1989-02-20
Publication date: 1989-10-18

Abstract

The utility model discloses a pedal bicycle, belonging to the technical field of the bicycle, comprising a handle bar, a bicycle frame, wheels, a bicycle seat and a drive mechanism. The handle bar can be the disk type, the two wheels can be provided with a small front wheel and a big rear wheel, and the bicycle seat can be a high back rest seat. Four wheel disks in the drive mechanism are arranged on the main beam of the bicycle frame, and a back wheel disk is connected with the rear wheel through a chain. Two cranks are arranged on the wheel shaft of a front wheel disk, and the cranks are connected with two levers with pedals through connecting rods. Compared with the common bicycle, the utility model has the advantage of high running speed, labor-saving performance and comfortable performance.

Description

Pedal bicycle

The utility model belongs to technical field of bicycles.

At present, generally the bicycle of Shi Yonging is that the bicyclist steps the sprocket wheel that a pair of reverse crank is equipped with in rotation with both feet, drives bicycle by chain with the flywheel that links to each other with wheel and advances.This cycling person's leg and pin all will be made the circumference cycle event, and have only in about forwardly 130 ° of scopes, crank is just had impetus, and all the other are for making idle work, and the bicyclist also will overcome the weight of self leg simultaneously, so require great effort when riding, because ordinary bicycle center of gravity when riding is higher, when winter the road sliding or when being in an emergency, it is very dangerous that the bicyclist feels, when the long period rides, be easy to fatigue.Once the someone want to design comparatively laborsaving, the linear drives bicycle, as: a kind of linear drives pedal plate type bicycle that announce in DE3410295 the Germany, be by sprocket by the perpendicular line driving chain--have the bicycle chain transmission of stretcher, its advantage is that the vertical shifting of stretcher can make the bicyclist select best foot-operated power.Shortcoming is because the bicyclist is that both legs pump, and need overcome the weight of self leg, and the bicyclist is effort comparatively still, and the long period comparatively fatigue of riding still.Also there is above-mentioned similar shortcoming in China in No. 87200658 patent applications of having announced.

The purpose of this utility model provides a kind of laborsaving, safe, comfortable bicycle.

The utility model is made up of handlebar, vehicle frame, wheel, vehicle seat and transmission device.Handlebar is a disc type; Two wheels are that front-wheel is little, and trailing wheel is big; Vehicle seat is high seat chair; Four of the wheel disc group wheel discs are configured on the U type vehicle frame main beam successively in the transmission device, the rear trochal disc of four wheel discs links to each other by chain with rear wheel, on the wheel shaft of preceding wheel disc two cranks that ratchet is housed are set, crank links to each other with two levers that have pedal by connecting rod.

Advantages such as transmission device of the present utility model has been owing to adopted lever, and connecting rod and wheel disc group are carried out the transmission of power, make it compare with ordinary bicycle and have the moving velocity height, and be laborsaving.Vehicle seat has adopted high seat chair, and seat is configurable lower, make when it is ridden safer stable, and comfortable, indefatigability.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the upward view of Fig. 1.

Fig. 3 is the lever of the utility model transmission device and the structural representation of connecting rod.

Fig. 4 is a crank structure scheme drawing of the present utility model.

Fig. 5 is the A-A view of Fig. 4.

Before being equiped with on the vehicle frame of the present utility model (2), rear wheel (3,4), the flywheel (20) of trailing wheel (4) connects rear trochal disc (9) by chain (22), the sprocket (21) of rear trochal disc (9) connects wheel disc (8) by chain, the sprocket of wheel disc (8) connects wheel disc (7) by chain, wheel disc (6) before the sprocket of wheel disc (7) connects by chain, wheel disc (6,7,8,9) adopt same size to make, the left side of symmetry is equipped with in the both sides of wheel disc (6) axis, right crank (18,19), crank (18,19) be equipped with on ratchet (35) and with the ratchet (32) of its phase configuration, spring (34), flywheel (33), steel ball (28) and Flywheel disc (27), crank (18,19) two ends connect a left side respectively, the short connecting rod (16 on right side, 17), short connecting rod (16,17) connect corresponding transmission levers (14,15), transmission levers (14,15) a end is fixed on the vehicle frame, the other end connects corresponding long connecting rod (12,13), long connecting rod (12,13) connect the lever (10 that an end has pedal (23), 11), lever (10,11) the other end is fixed on the vehicle frame, and attachment point has bearing arrangement.The scope of the reciprocal fortune of lever (10,11) is controlled by the shackle line (24) of connection lever (10,11) and the resistance bar (25) that is fixed on the vehicle frame (2), and the attachment point of steel rope total length and resistance bar should guarantee that lever (10,11) front-rear reciprocation movement is 380mm.Handlebar (1) is for being similar to the automobile steering wheel formula, and vehicle seat (5) has backrest, and the bicyclist is felt comfortably cool.

The utility model is to drive like this: if the bicyclist is pedaled earlier right crus of diaphragm forward, the right side lever (11) that has pedal (23) rotates around its bearing, with power flying wheel (20) after wheel disc (6,7,8,9) drives, drive wheels (4) is rotated by right side long connecting rod (13), transmission levers (15), short connecting rod (17), crank (19).Meanwhile, because left and right lever (10,11) is connected by pulley (26) by steel cable and have resistance bar (25) to limit, make lever (11) when its bearing rotates, left side lever (10) resets backward, left and right crank (18,19) all has flywheel gear and also can reset, the bicyclist is pedaled the lever (10) on the left side more then, drives travelling of bicycle.

(29) among the figure are the shaft shoulder, and (30) are the steel bowl, and (31) are steel ball.

Claims

1, a kind of pedal-type bicycle is made up of handlebar, vehicle frame, vehicle seat, wheel and transmission device, it is characterized in that handlebar is a disc type; Two wheels are that front-wheel is little, trailing wheel is big; Vehicle seat is high seat chair; Four of the wheel disc group wheel discs are configured on the U type vehicle frame main beam successively in the transmission device, the rear trochal disc of four wheel discs links to each other by chain with rear wheel, on the wheel shaft of preceding wheel disc two cranks that ratchet is housed are set, crank links to each other with two levers that have pedal by connecting rod.