CN2233356Y

CN2233356Y - Automatic boosting cycle

Info

Publication number: CN2233356Y
Application number: CN95234073U
Authority: CN
Inventors: 杜在甫
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-06-09
Filing date: 1995-06-09
Publication date: 1996-08-21
Anticipated expiration: 2005-06-09

Abstract

The utility model relates to a technique for bicycles. The automatic boosting cycle comprises a frame, a handle bar, a front wheel and a rear wheel, a shock-absorber arranged between the movable rear arm and the rear storage rack, a ratchet wheel arranged on the hub of the rear wheel, a pullback spring connected between the ratchet wheel and the rear arm, a side pulley whose one end is fixed on the rear arm and the other end is fixed on the ratchet wheel and passes through the rear storage rack, and a pulley rope. The boosting cycle has the advantages of comfortable riding and labour saving, and is suitable for a long-distance journey.

Description

Autoamtic boosting bicycle

The utility model belongs to the technical field of bicycle.

The bicycle of our usefulness has single speed now, and is many speed and dynamic power-assisted, but various bicycle, no matter be single speed or many speed, when riding, the used power of people all is identical, and dynamic power-assisted, though the power of human is little, but the force that the people does not spend has been gone out by power, so the power of usefulness also is identical, simultaneously, the people is when riding, and some merits have but been wasted.

The purpose of this utility model provides a kind of laborsaving and high bicycle of degree of utilization merit.

This autoamtic boosting bicycle, comprise vehicle frame, be contained in the front fork of vehicle frame front end, be contained in the handlebar of front fork upper end, be contained in the front-wheel of front fork lower end, be contained in the saddle on the vehicle frame, the back shelf that are connected as a single entity with vehicle frame, activity is contained in the rear arm on the axis of vehicle frame, be contained in the trailing wheel on the rear arm, be contained in the minor sprocket on the hind axle skin, at axle skin one end of trailing wheel ratchet be housed, the side of back shelf is equipped with to break away and is taken turns, pulley is equipped with in the back of back shelf, one end of rope is fixed on the rear arm, one end is fixed on the ratchet by the pulley and the wheel that breaks away, and extension spring one end is fixed on the rear arm, one end is fixed on the ratchet, and shock absorber one end is fixed on the shelf of back, one end is fixed on the rear arm.

Because rear arm is to be movably arranged on the axis of vehicle frame, rear arm has bumper to be connected with the back again between shelf, it is very comfortable when the people rides, simultaneously when riding, the up-down vibration that bumper does not stop, thus rear arm also the moving ratchet of the rope band that makes of up-down vibration rotate, drive trailing wheel and rotate, thereby make the people laborsaving, improve power factor.

Accompanying drawing shows embodiment of the present utility model, wherein:

Figure 1 shows that the front elevation of autoamtic boosting bicycle;

Figure 2 shows that the birds-eye view of autoamtic boosting bicycle;

Figure 3 shows that the semi-sictional view enlarged drawing of autoamtic boosting bicycle;

Figure 4 shows that along the semi-sictional view enlarged drawing of A shown in Figure 1-A line.

Autoamtic boosting bicycle as shown in the figure, comprise vehicle frame 1, be contained in the front fork 11 on the vehicle frame 1, activity be contained in front fork 11 upper ends can before the handlebar 2 that turns over, be contained in the front-wheel 4 of front fork 11 lower ends, be positioned on the saddle 3 of vehicle frame 1 standpipe upper end, and there is the little backrest that protrudes obliquely the rear end of saddle 3, with the back shelf 9 that vehicle frame 1 is connected as a single entity, be positioned on the large toothed disk 6 on vehicle frame 1 axis, be positioned on foot-operated 7 on the axis, activity is contained in the rear arm 8 on the axis of vehicle frame 1, be contained in the trailing wheel 5 on the rear arm 8, be contained in the denticle dish 18 of 5 skin right-hand members of trailing wheel, connect the chain 17 of large toothed disk 6 and denticle dish 18.The lower end is fixed on the rear arm 8, the upper end is fixed on the bumper 10 of back shelf 9 front ends, and bumper 10 is the hydraulic spring grease cup bumper, on the rear arm of rear arm 8 and the junction of bumper 10, be fixed with folding pedal 19, the outer ring that is contained in the axle skin left end of trailing wheel 5 has the ratchet 15 of groove, when rotating in the counterclockwise direction, ratchet 15 leads power, the rear end is fixed on the ratchet 15, front end is fixed on the extension spring 12 of rear arm 8 front ends, be contained in the sideslip wheel 13 of back shelf 9 rear end left surfaces, be contained in two pulleys 14 at two ends, shelf 9 back, back respectively, one end is fixed on two rear arms, 8 rear ends, one end is fixed on rope 16 on the ratchet 15 by wheel 13 and two pulleys 14 that break away, and it is 16 Y-shaped to restrict, rope 16 is steel wire or steel rope, and the also available end of extension spring 12 is fixed on an end on the hind axle and is fixed on wind spring on the ratchet.

This morpet is ridden comfortable, can save a large amount of power, makes the bicyclist free and relaxed, goes on a long journey also very untired.

Claims

1, a kind of autoamtic boosting bicycle, comprise vehicle frame (1), be contained in the front fork (11) of vehicle frame (1) front end, be contained in the handlebar (2) of front fork (11) upper end, be contained in the front-wheel (4) of front fork (11) lower end, be contained in the saddle (3) on the vehicle frame (1), the back shelf (9) that are connected as a single entity with vehicle frame (1), activity is contained in the rear arm (8) on the axis of vehicle frame (1), be contained in the trailing wheel (5) on the rear arm (8), be contained in the minor sprocket (18) on trailing wheel (5) the axle skin, it is characterized in that ratchet (15) being housed at axle skin one end of trailing wheel (5), the wheel (13) that breaks away is equipped with in the side of back shelf (9), pulley (14) is equipped with in the back of back shelf (9), and rope (16) one ends are fixed on the rear arm (8), one end is fixed on the ratchet (15) by the pulley (14) and the wheel (13) that breaks away, and extension spring (12) one ends are fixed on the ratchet (15), one end is fixed on the rear arm (8), and shock absorber (10) one ends are fixed on the back shelf (9), one end is fixed on the rear arm (8).

2, autoamtic boosting bicycle according to claim 1 is characterized in that bumper (10) is the hydraulic spring grease cup bumper.

3, autoamtic boosting bicycle according to claim 1 is characterized in that being fixed with folding foot-operated (19) on the rear arm of the junction of rear arm (8) and bumper (10).

4, autoamtic boosting bicycle according to claim 1 is characterized in that there is the little backrest that protrudes obliquely the rear end of saddle (3).