CN2811142Y

CN2811142Y - Dual-link shockproof compressing apparatus for bicycle

Info

Publication number: CN2811142Y
Application number: CNU2005201036492U
Authority: CN
Inventors: 陈汉杰
Original assignee: HUANYU BICYCLE CO Ltd
Current assignee: Xin Pulong Fala Co
Priority date: 2005-08-11
Filing date: 2005-08-11
Publication date: 2006-08-30
Anticipated expiration: 2015-08-11
Also published as: DE202006012023U1

Abstract

The utility model relates to a dual-link shockproof compressing apparatus for a bicycle, which mainly comprises an upper connecting rod and a lower connecting rod, wherein the rear end of the upper connecting rod is pivoted with the top end of a rear fork frame used for fixing a rear wheel, the bottom end is pivoted with a stand pipe of a frame, and the front end is connected with the top end of a damper. The lower connecting rod is positioned above an axle hole of a fixing fluted disc of the frame, the front end of the lower connecting rod is pivoted with a lower pipe of the frame, a connecting hole is arranged above the pivoting position to be pivoted with the bottom end of the damper, and the rear end spans the stand pipe to be pivoted with the bottom end of the rear fork frame. A supporting point of the lower connecting rod for fixing the bottom end of the damper forms a floating fixing point by the apparatus, and the rear fork frame for fixing the rear wheel swings forward with small difference in horizontal distance at two positions during the process that the damper acts from a stationary state to a compression terminal point. Thus, the disadvantages that a traditional rear fork frame swings backward and treading force loss is caused because a chain is backward stretched are complemented.

Description

Bicycle double link shock-absorbing compression set

(1) technical field

The utility model relates to a kind of bicycle double link shock-absorbing compression set, especially refer to that connecting rod is a unsteady connecting rod under a kind of fixedly Shock absorber below, promptly fixedly the fixed pivot of Shock absorber below is floating type, make Shock absorber by quiescence to compressing the terminal point actuating travel, fixedly crotch system swing forward after the trailing wheel, and two position horizontal throw differences are little, improve known rear crotch and swing backward, chain is pulled rearward the disappearance of stretching the stampede power consume that is caused, and belongs to the bicycle corollary apparatus.

(2) background technology

Press, bicycle is for reaching shock-proof effect, in fixing trailing wheel with after be provided with Shock absorber between crotch and vehicle frame.The mode that known Shock absorber is fixed is to adopt upper and lower double link design, and promptly boxed rod rear end and rear crotch top articulate, and front end is connected with the Shock absorber top, and middle bottom side then articulates with seat tube; Lower link is positioned at the vehicle frame fixed gear plate and uses the axis hole rear, and rear side end is connected with the trailing wheel rear crotch, and the fix fixed pivot of formula of front end and Shock absorber bottom is connected.The known Shock absorber of this kind links pattern with upper and lower double link, the VPP that promptly is commonly called as (Virtual Pivot Point), though in the time of can providing foot pedal not can because of the chain pull start in trailing wheel, avoid the unnecessary compression of trampling, prevent energy impairment, but run into the road surface of jolting when trailing wheel when using, because of the fulcrum of Shock absorber and lower link binding is a fixed type, so that train is swung displacement backward after when moving, the problems such as stampede power consume that cause chain to stretch backward to be stretched.

(3) summary of the invention

The main purpose of the utility model ties up to when a kind of Shock absorber start is provided can prevent the stampede power loss, can keep trampling the bicycle double link shock-absorbing compression set of efficient at any time.

A kind of bicycle double link of the utility model shock-absorbing compression set, it is characterized in that: it comprises:

-boxed rod, the rear end and fixedly the crotch top used of trailing wheel articulate, the standpipe pivot joint of bottom and vehicle frame, front end is connected with the Shock absorber top;

-lower link, position are above the axis hole of vehicle frame fixed gear plate, and front end and down tube articulate, and connecting bore is set the top, articulated section and the Shock absorber bottom articulates, and the rear end articulates with the rear crotch bottom after striding across standpipe.

These devices of mat make the fixedly fulcrum formation one unsteady attachment point of Shock absorber bottom of lower link, and when making Shock absorber do the compression start, the start pattern of rear crotch is to swing forward.

Wherein, this lower link strides across the standpipe place and can have a notch to the mouth of striding of car rear side, to take in seat tube.

By on can find out, it is the floating type of on-fixed that principal character of the present utility model ties up to the fulcrum that connects the Shock absorber bottom in: lower link, train upwards and is forward swung after when making Shock absorber compression start, and Shock absorber is little to the horizontal displacement distance difference of compressing terminal point two positions by quiescence, and stampede power is consumed when preventing Shock absorber do compression start.

A kind of bicycle double link of the utility model shock-absorbing compression set, its advantage is: this structure design makes the fixedly fulcrum formation one unsteady attachment point of Shock absorber bottom of lower link, when making Shock absorber do the compression start, the start pattern of rear crotch is to swing forward, the stampede power loss can be prevented during the Shock absorber start, efficient can be kept trampling at any time.

(4) description of drawings

Shown in Figure 1 is structural group and the figure of the utility model embodiment;

Shown in Figure 2 is connecting rod External view under the utility model embodiment;

Shown in Figure 3 is a start reference diagram more than the utility model embodiment;

Shown in Figure 4 be the utility model embodiment make cardon (1);

Shown in Figure 5 be the utility model embodiment make cardon (2).

Number in the figure is as follows:

10, Shock absorber, 20, good 11, the trailing wheel 12 of boxed rod, rear crotch 13, vehicle frame

130, standpipe 30, lower link 131, axis hole 31, preceding pivoted hole 132, following pipe

32, stride mouth 33, back pivoted hole 34, connecting bore

A, B-pivoting point C-crotch horizontal displacement distance

(5) specific embodiment

See also shown in Figure 1ly, the bicycle fixedly structure of Shock absorber 10 mainly comprises:

-boxed rod 20 generally is del, and rear end and fixedly trailing wheel 11 usefulness crotch 12 tops pivot joint afterwards articulate in the middle of the standpipe 130 of bottom and vehicle frame 13, and the top of front end and Shock absorber 10 articulates.

-lower link 30, the position is above the axis hole 131 of vehicle frame 13 in order to fixed gear plate, please cooperate consult shown in Figure 2, pivoted hole 31 before the front end tool one, with with vehicle frame 13 under pipe 132 articulate, tool one notch is striden mouth 32 backward in the middle of the rear end, when making lower link 30 extend back device, strides the standpipe 130 that mouth 32 can be taken in vehicle frame 13; The rear end has back pivoted hole 33, makes with vehicle frame 12 bottoms, back to articulate; Above preceding pivoted hole 31, be provided with connecting bore 34, articulate with bottom with Shock absorber 10.

After with above-mentioned component composition, promptly as shown in Figure 1, when trailing wheel runs into when jolting the road surface, whole actuator state is as follows:

1, when car in quiescence, Shock absorber 10, upper and

lower strut

20,30 and rear crotch 12 are not swung, and promptly reach a1, a2, the a3 position of Fig. 3 as shown in Figure 1.

2, when travelling, car jolting (as shown in Figure 3, Figure 4) when moving to the b1 position on road surface trailing wheel 11 and the rear crotch 12, the bottom of this state boxed rod 20 and standpipe 130 pivoting point A, and lower link 30 front ends and vehicle frame to manage 132 pivoting point B for 13 times motionless so that the displaced position of rear crotch 12, boxed rod 20 and Shock absorber 10 can be shown in Fig. 3,4 b1, b2, b3 as.

3, as car jolting (shown in the Fig. 3,5) when moving to the c1 position on road surface trailing wheel and the rear crotch 12 that travel, the pivoting point B of the bottom of this state boxed rod 20 and standpipe time property 130 pivoting point A and lower link 30 front ends and vehicle frame 13 times pipe 132 is still motionless, thus the displaced position of rear crotch 12, boxed rod 20 and Shock absorber 10 can be shown in Fig. 3,5 c1, c2, c3 as.

By above-listed explanation as can be known, Shock absorber 10 is when making compressed action, (is the a1～c3) of Fig. 3 by quiescence to compressing terminal point, the start pattern system swing forward of rear crotch 12, and horizontal throw (being a1～c1 horizontal throw c of Fig. 3) difference of swing is little, do not have the problem generation that known chain is stretched when causing Shock absorber 10 compression starts, strength loss when preventing foot pedal can keep trampling efficient.

Claims

1, a kind of bicycle double link shock-absorbing compression set, it is characterized in that: it comprises:

One boxed rod, the rear end and fixedly the crotch top used of trailing wheel articulate, the standpipe pivot joint of bottom and vehicle frame, front end is connected with the Shock absorber top;

One lower link, position are above the axis hole of vehicle frame fixed gear plate, and front end and down tube articulate, and connecting bore is set the top, articulated section and the Shock absorber bottom articulates, and the rear end articulates with the rear crotch bottom after striding across standpipe.

2, a kind of bicycle double link shock-absorbing compression set according to claim 1 is characterized in that: this lower link strides across the standpipe place and has a notch backward in order to take in the mouth of striding of seat tube.