CN2190609Y

CN2190609Y - Rope driving bicycle

Info

Publication number: CN2190609Y
Application number: CN 94208628
Authority: CN
Inventors: 张岳
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-04-06
Filing date: 1994-04-06
Publication date: 1995-03-01
Anticipated expiration: 2004-04-06

Abstract

The utility model relates to a rope driving bicycle, wherein, a guide groove and a pulley are arranged on the front under beam of a bicycle body frame or both sides of one end of the bicycle body frame; a pedal is connected in the guide groove to carry out longitudinal displacement in a position-limit mode; a rope is fixedly connected with the pedal positioned in the guide groove or a slider block connected with the pedal; the rope which extends out of the guide groove and passes through the pulley is coiled in a flywheel groove of a rear axle shaft; two pedals are connected together by a linking position-limit mechanism. The utility model has the advantages of simple and reasonable structure, and high transmission efficiency.

Description

Rope driving bicycle

The utility model relates to the driving device of bicycle.

First dead center, lower dead point and low efficiency district are arranged when transmitting pedal power according to crank in the chain-driving bicycle drive before, thereby the low existing problems of driving efficiency, people propose many with cord drive replacement chain-drive improvement project, as: the steel-wire rope reciprocation driving bicycle that the foot-operated wire drive of the manpower that CN87207883U proposes, CN87104725A propose, a kind of rope drive portable bicycle that CN2082253U proposes or the like.These improvement projects have all improved driving efficiency to some extent, but also exist the shortcoming that some have general character, mainly show as: (1) has long rigid bar, in order to support pedal, play the lever force-saving effect, but be unable to undergo collision, otherwise be easy to distortion; (2) spring that flywheel is resetted is housed, supplementary payments to make the strength of deflection of spring; (3) accept the enegine pit complex structure of rope, strengthen productive costs.

It is a kind of simple and reasonable that the utility model purpose is to provide, and driving efficiency is higher, more labour-saving cord drive bicycle.

The scheme that the utility model purpose realizes is that transmission device is in by the bicycle that includes headstock, car fork, vehicle body frame, wheel and transmission device etc.:

A, underbeam or one end bilateral symmetry have two guide grooves before vehicle body frame, there is the location pulley at the guide groove two ends, the spacing pedal that is connected with in the guide groove, make pedal can only be in guide groove longitudinal travel, pedal is at the guide groove intrinsic displacement short lines that is linked to be between underbeam and the saddle before perpendicular to vehicle body frame of 90 ° of straight lines being linked to be of two terminal points up and down;

In the b, guide groove pedal or and pedal bonded assembly slide block on be fixedly connected with rope, rope extends behind the guide groove through pulley and is coiled in the flywheel groove on the hind axle again, the number of turn is determined by the friction coefficient between concrete material (rope and groove);

Link to each other with interlocked limited mechanism between c, two pedals, a batter is pedaled when descending, opposite side is then up, and vice versa.

The utility model guide groove can be that strip shape or arc are fixed on the vehicle body frame underbeam or with guide groove and vehicle body frame underbeam cast solid.

The utility model cord drive principle is: when the human underfooting is stepped on a batter and pedaled, spur rope simultaneously, again by the cord drive flywheel, drive trailing wheel and move ahead.When stepping under a batter is pedaled, drive the opposite side pedal by link gear and rise, the ratchet lodging idle running in this side flywheel is not to the trailing wheel inhibition that moved ahead.

After the utility model adopts such scheme, overcome the problem that adopts than the long pole pedal in the existing cord drive bicycle or the existence such as enegine pit structure that need firmly make its spring that resets or employing complexity are housed in flywheel, have simple and reasonable, scrunch more laborsaving, the advantage that driving efficiency is higher.

The utility model cable traction device also can be used for the various machineries that other manpower pedal steps on.

Below in conjunction with drawings and Examples the utility model is further specified:

Fig. 1 is the side schematic view of an embodiment of the utility model.

Fig. 2 is the constructional drawing after Fig. 1 embodiment transmission device amplifies.

Fig. 3 is Fig. 1,2 guide grooves and pedal joint construction figure.

Underbeam 2. pulleys 3. guide grooves 4. pedals 5. lower sheaves 6. driving ropes 7. flywheels 8. trailing wheels 9. saddles 10. slide blocks 11. balls 12. pulleys 13. interlock ropes before 1. vehicle body frames among the figure

In Fig. 1～3, underbeam 1 both sides respectively are fixed with a strip shape guide groove 3 before vehicle body frame, and 90 ° of guide grooves are perpendicular to the short lines that is linked to be between underbeam before the vehicle body frame 1 and the saddle 9.Before the vehicle body frame at guide groove 3 two ends, be fixed with pulley 2, lower sheave 5 and pulley 12 on the underbeam 1 respectively.Pedal 4 is to embed spacing connection in the groove of guide grooves 3 by being fixed on slide block 10 on its handle bar, and slide block 10 simultaneously is being equipped with ball 11 towards guide groove 3 inwalls, makes the pedal 4 can be light mobile 3 about along guide groove.Slide block 10 upper ends are connected to steel wire respectively and drive rope 6 and interlock rope 13, and interlock rope 13 is upwards walked around two pulleys, 12 backs and is connected with other side guidance 3 inner slides 10; Drive 6 in rope and make progress through pulley 2 hub disks on the groove of flywheel 7, behind 8 circles, back be connected with slide block 10 lower ends more altogether through lower sheave 5.There is cover plate in exit, guide groove 3 two ends.When the human pin down scrunches a batter when pedaling 4, drive that rope 6 is corresponding thereupon to move and drive the flywheel forward rotation, drive back wheels of vehicle 8 and move ahead.Pedal when moving down at a batter, rise by interlock rope 13 pulling opposite side pedals, this side drive rope is corresponding to be done counter motion and drives the flywheel backward rotation, this moment this flywheel ratchet lodging idle running.So the both sides pedal moves the also corresponding intersection work done of the flywheel of both sides, drive wheels ahead running one on the other.

Claims

1, a kind of cord drive bicycle includes headstock, car fork, vehicle body frame, wheel and transmission device, it is characterized in that:

A. underbeam (1) or one end bilateral symmetry have two guide grooves (3) before vehicle body frame, there is location pulley (2,5,12) at guide groove (3) two ends, guide groove (3) is spacing be connected with can be in groove the pedal (4) of longitudinal travel, pedal (4) is at guide groove (3) the intrinsic displacement short lines that is linked to be between underbeam (1) and the saddle (9) before perpendicular to vehicle body frame of 90 ° in the straight line that is linked to be of two terminal points up and down;

B. the interior pedal of guide groove (3) (4) or and pedal bonded assembly slide block (10) on be fixedly connected with and drive rope (6), drive rope (6) and extend behind the guide groove (3) through pulley and be coiled in again in flywheel (7) groove on trailing wheel (8) axle;

C. link to each other with interlocked limited mechanism between two pedals (4), make a batter pedal (4) when descending, opposite side is then up, and vice versa.

2,, it is characterized in that guide groove (3) can be that strip shape or arc are fixed on before the vehicle body frame underbeam (1) or with undercarriage (1) cast solid before guide groove (3) and the vehicle body frame according to the described cord drive bicycle of claim 1.

3, according to the described cord drive bicycle of claim 1, it is characterized in that pedal (4) is that slide block (10) simultaneously is being equipped with ball (11) towards guide groove (3) inwall by spacing connection in the groove that is fixed on slide block (10) the embedding guide groove (3) on its handle bar.