CN206125327U - Chain ware is dialled to back suitable for a left side outer speed -changing bicycle of drive use - Google Patents

Abstract

The utility model provides a chain ware is dialled to back suitable for a left side outer speed -changing bicycle of drive use, it includes that the base component contains the three fabric pieces of portable component and chain guide member of linkage to dial the chain ware, base component and connected to the frame, portable member can be moved to another place and linked to the base member, chain guide member hookup to this portable component, this chain guide member corresponds with multistage flywheel in the use to optionally makes and changes between a plurality of sprockets of chain at multistage flywheel of connecting when portable component moves for the base component, a serial communication port, portable component is located chain guide member left side.

Description

Suitable for the rear chiain-moving device of the outer multi-speed bicycle of left driving

Technical field

This utility model is related to the rear chiain-moving device of a bicycle, is provided in particular in being adapted to the outer multi-speed bicycle of the left driving of assembling Rear chiain-moving device.

Background technology

Bicycle is individual's machinery articles for use that are a kind of common and extremely popularizing, and in the world its recoverable amount and user are equal It is hundreds of millions of.Also never it has been interrupted in more than 200 years to the improvement of bicycle itself since its birth.With sending out for society Exhibition, bicycle acts on constantly raising as sports apparatus, body-building apparatus and converter tools, and this is also bicycle performance Raising carries out ultimate attainmentization transformation and provides power.1940, the speed change system that Kan Paniuluo (Tullio Campagnolo) is released Indicate the beginning in sports bicycle shift epoch.Compared with single speed bicycle, there is the multi-speed bicycle of manual derailleur, for The effect for improving riding speed is very notable.This is one can clearly be experienced " sensing type " improvement by cyclist.It is this kind of It is rare to have improved since nearly half a century.Also some improvement, for example, manufacture bearing with high-duty cast ceramic balls, " plate type wheel ", " break bar ", vehicle frame adopts streamlined tubing, with carbon fiber or titanium alloy manufacture vehicle frame etc., this kind of improvement, they Riding resistance to reducing bicycle, improve riding speed effect can be described as it is very little, mostly can only be by fine survey Examination is proved that such improvement can be referred to as " test improvement ".Although such improvement effect is not it is obvious that but bicycle neck The science research input that domain is paid for this is huge, and economic cost is high.If bicycle is only used as the personal daily vehicles to use, These " test improvement " can give it up.But, as strongly pursue improve riding speed cyclist and Cycling enthusiasts, still go after like a flock of ducks to this kind of improvement.For this colony, if bicycle improve can by oneself Riding speed improves 0.1s/km, is all extremely big Gospel.Because in high-level bicycle rider tournament, the difference of 0.1 second can be with It is champion and the gap of the 10th！Beijing Olympic Games man's highway (245.4 kilometers) bicycle finals the 1st to 6 in such as 08 year Achievement be 6 hours 23 points 49 seconds, its ranking can only rely on the slightest difference in the high-speed photography picture of terminal line end determining.

In prior art, the driving means in bicycle be all be substantially disposed in right side, only BMX bicycles (single speed) and The bicycle ridden jointly for double and many people has left driving device to occur.There is artificial sinistration foot people to design left drive single speed voluntarily Car, but have no that such commodity emerge.Driving is arranged at left side by part street formula BMX bicycle, while in the right outside peace of bicycle Dress steps on cylinder, gets used to being used with the preceding bicyclist of right lower limb for doing acrobatic elements, its objective is to avoid big sprocket wheel from doing specific It is damaged during stunt.While left driving device is set for the bicycle that double and many people ride jointly, right drive is also provided with Device, it is therefore an objective to coordinate multiple driving means.If speed change gear, its speed change gear is still on right side.Driving in bicycle Device is arranged on right side, and from 1888, John .k. Si Tali in Coventry, United Kingdom city produced first modern times certainly to this situation Drive a vehicle and there is, the time is more than a century.Its initial design considerations has had no way of investigating, but, people may Think, driving means should be arranged on rides on the vehicle frame of people's lower limb foot advantage side.Therefore, have also appeared for sinistration foot crowd, if Count out single speed bicycle of the driving means in left side.From making full use of sharp foot advantage to improve the consideration of riding speed angle, this Viewpoint is a kind of misunderstanding, the driving means of bicycle be arranged on people's lower limb foot advantage side vehicle frame for give full play to advantage side ability with It is unfavorable to improve speed.

It is also to change common people for the essence technology prejudice that bicycle structure is designed for the problems referred to above, there is provided It is a kind of more reasonable in strength transmission, the suitable right-handedness foot for accounting for the most right-handedness foot person's physiological dominance of population can be given full play to The outer multi-speed bicycle of left driving that crowd uses, the big sprocket wheel of more than the two grades multi-change speeds that will be arranged on axis is arranged on The left side of vehicle frame, left crank is solidified as a whole with the big sprocket wheel；Correspondingly, the step by-step variable gear on rear axle is arranged on car The left side of frame, the locked direction of its one-way clutch between rear axle is left-handed, and glide direction is dextrorotation；Accordingly, it is described The derailleur of speed change gear is arranged on the left side of vehicle frame on axis and rear axle.

This left driving multi-speed bicycle, used as the outer multi-speed bicycle of left driving, rear chiain-moving device therein will also have and accordingly change Become.

The purpose of this utility model is that, there is provided the rear chiain-moving device suitable for assembling the outer multi-speed bicycle of left driving.

Rear chiain-moving device is prior art, and style is numerous, can substantially be divided into 4 kinds：By having with cycle frame combination The fixed rear chiain-moving device of connection sheet and direct fixed rear chiain-moving device；After being installed at rear axle by vehicle frame rearward end structure difference Derailleur and it is installed on rear chiain-moving device at rear chiain-moving device pintle.Although various style rear chiain-moving device concrete structures have difference, always Body structure is substantially the same.Typical structure includes base component, the movable member containing connection rod set and chain guide member.Pedestal structure Part is connected with vehicle frame, and movable member connects on the base member, and chain guide member is connected on movable member, may move Movably connect between component and base component and chain guide member, chain guide member is connected to chain, bicycle shift Control device is connected with movable member, when movable member is moved relative to base component, chain guide member action and Chain is changed between multiple sprocket wheels.

In order to adapt to the outer multi-speed bicycle of left drive, rear chiain-moving device also has respective change.

Utility model content

A kind of rear chiain-moving device suitable on the outer multi-speed bicycle of left driving, the derailleur includes base component, containing even Three groups of components of movable member and chain guide member of bar group；The base component is connected with vehicle frame, the movable member Base component is movably coupled to, the chain guide member is attached to the movable member, the chain guide member in use It is corresponding with multistage flying wheel, so that connected chain is optionally made when movable member is moved relative to base component multistage Change between multiple sprocket wheels of flywheel；Characterized in that, the movable member is located at chain guide member left side；It is described Base component is located at the left side top of the chain guide member；

Particular recess mating shapes on the outside of the shape and vehicle frame rearward end of the base component and vehicle frame binding site；

Further, the base component is made up of top connection sheet and bottom, and top connection sheet is with lower movable ground even Particular recess mating shapes on the outside of being connected in the shape of one, connection sheet top and vehicle frame binding site and vehicle frame rearward end；

Further, the base component and movable member are upper right lower left position relation.

Further, the movable member is located at the movable member right side with the interface of the chain guide member Forequarter.

Further, the chain guide member is located at the chain guide member with the interface of the movable member Left upper portion.

Further, the base component is located at base component left lower with the interface of the movable member.

Preferably, apertured is coated with an installation axle screw on the base component, for the base component movably to be joined The rear chiain-moving device pintle left side being connected on vehicle frame, the screw thread of the installation axle screw is left-handed.

The rear chiain-moving device that chain is dialled suitable for the multistage flying wheel on rear axle left side in the outer multi-speed bicycle of left drive, is installed on certainly The left back end left-external side of driving vehicle frame is corresponding up and down with the multistage flying wheel.

What this utility model was specific to is that cyclist and cycling enthusiasts are such a in cycling crowd It is keen to carry out bicycle ultimate attainmentization transformation, pursues the colony for improving riding speed, is that foundation accounts for the most right-handedness of population The physiological characteristicies of sufficient crowd are input into bicycle power, the improvement that export structure is arranged.

This utility model is based on following two discoveries：

One：Many cycling researcheres have been found that when test cyclist steps on and pedals power：Left side legpower is more than right side.For How about this is but without accurately explanation.Such as：Luo Jiong's " development of cycle test car and steps on opening for juggling with the feet art diagnostic analysiss systems soft ware Send out " (Beijing Sport University 2005,05,18)；Wu Cuie, Yuan Peng, military Gui Xin etc. " difference is stepped on and pedals cyclist under frequency Step on and pedal power research " (sports and science 2007,1, (28))；" lower limb muscular work and the foot when different drive ratios are ridden of Zhang Yihang The research of bottom pressure feature " (Beijing Sport University 2008,05,26)；Cao Chengzhu " track rider special project is stepped on and pedals power The analysis and research of amount " (Chinese New Products .2009,14).The test result announced in its text is all that left side legpower is more than Right side, but clear and definite answer is not all given the reason for producing this phenomenon.

Inventor of the present utility model has found:Step on resistance under the current structures shape of bicycle bicycle left side now big In right side, reason has two (by taking existing right driving bicycles as an example)：

1) present right driving bicycle driven, i.e. big sprocket wheel may be contained within bicycle right side with minor sprocket, and are connected by chain Connect.Big sprocket wheel, bilateral crank and bilateral are foot-operated to constitute bicycle quick shaft type power loader.Generally big sprocket wheel is with right crank It is combined together, the lateral separation very little of both the stress points when being stepped on the stress point of right crank end and big sprocket wheel, We are defined as the driving structure on right side：One group of simple lever claims direct lever；The crank in left side is by axis and big chain Wheel is indirectly joined together, and the lateral separation of both the stress points when being stepped in the stress point of left crank end and big sprocket wheel is The manyfold on right side, and axis is installed in bicycle center tap and supported by two groups of bearings.In order to keep the flexible of rotation Property, it is necessary to preserve certain gap in plane of rotation.We are defined as the driving structure (containing axis, big sprocket wheel) in left side：One group Double lever or indirect lever.The legpower that right crank is subject to, when being delivered in big sprocket wheel, its loss very little very little can be ignored Disregard.And the legpower that left crank is subject to is when being delivered in big sprocket wheel, its loss ratio right side is much bigger.

2), necessarily by the distortion power of axis in riding, this distortion power is at 3 for the center tap of bicycle：A) big chain Wheel, behind the substantially right side of distortion power a directions；B) left crank, distortion power b directions are substantially left front；C) right crank, distortion power c directions Substantially before the right side.Distortion power a ride step on pedal in all exist all the time；Distortion power b is produced when left crank is descending；Distortion power c exists Produce when right crank is descending.Distortion power a and distortion power b is mutual enhanced relation, and more legpowers can be lost；Distortion power a with Distortion power c is the relation cancelled out each other, and can reduce the loss of legpower.

In sum, its result directly translates into and resistance is stepped under bicycle left side more than right side, is transported according to multidigit bicycle The test result that dynamic researcher is done calculates, steps on resistance under bicycle left side and be more than right side 3% or so.So, it is straight in pedal position When connecing legpower under detection cyclist, even if the left and right sides of cyclist is stepped on, speed is completely the same, and left side legpower must also be greater than right side.

Two：It has long been known that the upper limb of people has single side superiority, most people is all that (upper limb advantage side is dextromanuality Right side)；Equally, the lower limb of people are also have single side superiority, and the advantage side of most people lower limb is right side, also known as right-handedness foot. But this people for knowing of point may be few, 1985 Plato (Plato) etc. to some white men of Maryland, USA for containing handedness, The asymmetric behavior characteristicss of the mankind such as sharp foot carried out investigation；Chinese scholar starts to have carried out this some to grind in the nineties in 20th century Study carefully.Such as：Ai Qinglong, king's sweet-smelling grass, " measure of 150 profit foots and handedness " ([J] the Academic Journal of Kunming Medical College 1991,12 of Pu Daoxue (1))；" Oroqen, Ewenki, Daur nationality's laterality functional character research " ([J] of Lu Shunhua, Zheng Lianbin, Li Yonglan etc. Hereditary .2000.22 (5)).But do not find that in the world profit foot situation of the someone to cyclist in stepping bicycle is stepped on is carried out so far Cross the report of research.But, there is relevant information disclosed in prior art：Zheng Xiaohong, prolongs " current China's Track Cycling item of beacon The horizontal women's splendid dress of height of eye steps on the preliminary study of the state of pedaling " (Beijing Teachers College of Physical Education's journal 1997,6 (9))；Li Chen, Liu " China high level woman 500 meters of place timing project cyclist steps on and pedals state research " of English (learn by Shandong Physical Education Institute Report 2007,4 (23))；" research of lower limb muscular work and plantar pressure feature when different drive ratios are ridden " (Beijing of Zhang Yihang Sport university 2008,05,26)；

The test result announced in each piece article all show right good the stepping on for left difference of most of cyclists and pedal shape Condition.

Profit foot situation of the applicant to cyclist in stepping bicycle is stepped on has carried out the research of nearly 2 years.By testing into one Step confirms that this right good left poor situation not only exists when right-handedness foot people rides right driving bicycle driven, and foot people rides left drive voluntarily in right-handedness Still exist during car.Tracing it to its cause is：It is very unique, category that what cyclist was made on bicycle step on pedals the feature of having an effect of action In the complicated random movement of lower limb, advantage side lower limb can preferably complete it, be the embodiment of limbs single side superiority, even if being run into Resistance it is slightly larger when it is still such.Applicants have discovered that：When right-handedness foot people scrunches bicycle (either left drive or right drive), right foot Under when stepping on the motion of crank half cycle round and smooth degree, (round and smooth degree is to weigh to be better than the round and smooth degree of crank half cycle motion when stepping under left foot Step on one of standard for pedaling level of movement height).Also show as simultaneously, the running speed outline of right half cycle is slightly faster than the fortune of left half cycle Rotary speed.

In sum, the right drive structure that now cyclists only, to accounting for population most right-handedness foot cyclist for, be The structure of individual mistake.It chooses a light load of comparison like allowing a people for being good at bearing a load on one's shoulder (right lower extremity)；And allow another The individual people's (left lower extremity) for being bad to bear a load on one's shoulder chooses a heavier load.And require them under conditions of synchronously moving ahead, Hurry up as far as possible.Necessarily the kind person of carrying a load is lighter for its result, but in order to synchronous moving ahead can not play his all one's effort, and be not good at The person of carrying a load then has to run around all the time wears him out for synchronous moving ahead to full capacity.The pace of the two can only be limited to be not good at the poor of the person of carrying a load Ability.It is will not to tolerate above-mentioned in the sports tournament that this kind of Jing of bicycle rider tournament often will challenge athlete's physiological limit What situation was present, unless it is undiscovered！

The left drive multi-speed bicycle that suitable right-handedness foot crowd uses will be stepped on and pedal the larger crank of resistance and be arranged at right side, make the right side The cyclist of sharp foot can more fully play the ability of its right lower extremity advantage side, and drive its left lower extremity ability more effectively Play.Dextropedal cyclist ride left driving bicycle driven when, under the constant situation of left foot power output, its right sufficient power is defeated Output should be higher than left foot by 3% or so.The increase of this integral power output, can be with equivalent to by bicycle loss of weight 25-50% The riding speed of bicyclist is improved into 1% or so, high-caliber cycling people can experience.This be one between Improvement between " sensing type improvement " and " test improvement ".For bicycle its benefit of racing is self-evident.And this reality It is the vitals of the outer multi-speed bicycle of the left drive of assembling with the outer multi-speed bicycle rear chiain-moving device of the left drive of new offer.

It is that one's own profession technical staff in the industry can complete although transforming existing multi-speed bicycle as left drive from right drive Design objective, but never someone does.Bicycle is a typical assembling commodity, even car load factory is nor all zero What part can be produced.Each parts be by special manufacturer production out.Cooperation without each producer, produces left drive speed change certainly Driving cost can be very high.Nobody has found the right drive structure that now cyclists only, cycles enough to accounting for the most right-handedness of population It is a structure for mistake for people；Nobody recognizes that left drive multi-speed bicycle is this by bicycle driving device installation site Be changed into left from the right side, for those strongly pursue the sufficient crowd of right-handedness for improving oneself riding speed, be extremely beneficial one voluntarily Bassinet structure element relationship changes (invention of key element change).This is that nobody goes design over more than 70 years, produces left drive speed change voluntarily The reason for car.So more no one individually goes design, production to be applied to the rear chiain-moving device of the outer multi-speed bicycle of the left driving of assembling.

The rear chiain-moving device that this utility model is provided, is to be improved on the left of bicycle, thus, it is possible to smoothly Realize the molding of the outer multi-speed bicycle of left driving.

This utility model is described in further details below by drawings and Examples.

Description of the drawings

Fig. 1 is the structural representation for being adapted to the outer multi-speed bicycle of left drive that right-handedness foot crowd uses.

Fig. 2 and Fig. 2 a a in the outer multi-speed bicycle of left drive are directly installed on rear axle for what this utility model was provided The main view and right side structural representation of the connection chip rear chiain-moving device at place, the front view of the Fig. 2 be from before bicycle rearward To view, show the situation that the rear chiain-moving device is arranged on the outer multi-speed bicycle vehicle frame left rear side rear axle of left drive.

The outer multi-speed bicycle of left drive that Fig. 3 and Fig. 3 a are provided for this utility model it is a be directly installed on it is direct at rear axle The main view and right side structural representation of fixed rear chiain-moving device, the front view of the Fig. 3 is that backward directions are regarded from before bicycle Figure, shows the situation that the rear chiain-moving device is arranged on the outer multi-speed bicycle vehicle frame left rear side rear axle of left drive.

A structure for being installed on direct fixed rear chiain-moving device at rear chiain-moving device pintle that Fig. 4 is provided for this utility model Schematic diagram, and show its situation being arranged on the outer multi-speed bicycle vehicle frame left rear side rear chiain-moving device pintle of left drive.

Fig. 5 is tied for the fixed rear chiain-moving device of a connection sheet being installed at rear chiain-moving device pintle that this utility model is provided Structure schematic diagram, and the situation being shown mounted on the outer multi-speed bicycle vehicle frame left rear side rear chiain-moving device pintle of left drive.

Assembling is left to be suitable for for Fig. 6, the structural representation of the Novel frame of the outer multi-speed bicycle of right drive.

Fig. 7, show this utility model provide special type suitable for bicycle frame shown in Fig. 6 it is directly fixed after Derailleur structural representation.Fig. 7 a show that it is arranged on the situation of the depressed part of Novel frame left rear side shown in Fig. 6.

Fig. 8, show this utility model and provides fixed suitable for the special type connection sheet of bicycle frame shown in Fig. 6 Rear chiain-moving device structural representation.Fig. 8 a show that it is arranged on the situation of the depressed part of Novel frame left rear side shown in Fig. 6.Wherein： Vehicle frame 1；Left surface depression 100；Left positioning fixes double acting hole 100a；Left groove 100b；Right flank depression 200；Right positioning is solid Determine double acting hole 200a；Right groove 200b；Rear chiain-moving device pintle 101；Fixing hole 101b；Rear axle groove matches somebody with somebody piece 103；Speed Control Device 2；Axis 3；Big sprocket wheel 4；Left crank 5；Right crank 6；Pedal 7；Rear drum (containing rear axle) 8；Multistage flying wheel 9；Chain 10；After dial Chain device 11；Base component 111；Base component top connection sheet 111a；Base component bottom 111b；11102 installation axle screws；Can Mobile member 112；Chain guide member 113；Special type rear chiain-moving device 11 '；Special type base component 111 '；Special type base component top Connection sheet 111a '；Special type base component bottom 111b '；Fixing hole 102a '；Movable member 112；Chain guide member 113.

Specific embodiment

Selected embodiment of the present utility model is illustrated now with reference to accompanying drawing.

Bicycle derailleur is it is well known that this utility model art in this utility model art Technical staff just can be with correct understanding this utility model by the accompanying drawing of this utility model description.Therefore, will only tie herein Close accompanying drawing to be described briefly.Use in this utility model " it is front, after, it is left, it is right, on, under " isotropy word each mean installation this Those directions of the bicycle of utility model.

The outer multi-speed bicycle of left drive that suitable right-handedness foot crowd uses on vehicle frame 1 as shown in figure 1, including a vehicle frame 1, arrange Variable-speed controller 2, arranges axis 3 on the vehicle frame 1, multistage big sprocket wheel 4 is arranged on axis 3, and the big sprocket wheel 4 is placed in vehicle frame 1 Left side, the left side of big sprocket wheel 4 arranges crank 5, and the crank 5 is solidified as a whole with big sprocket wheel 4, and in the right-hand member of axis 3 another song is arranged Handle 6, on crank 5 and crank 6 pedal 7 is respectively provided with.Rear axle 8 is set on vehicle frame 1, rear wheel is supported.Arrange on rear axle 8 Multistage flying wheel 9, it is corresponding with before and after big sprocket wheel 4 that multistage flying wheel 9 is arranged on the back left interior of vehicle frame 1.In big sprocket wheel 4 and multistage flying wheel Chain 10 is arranged on 9.Rear end arranges rear chiain-moving device pintle and is used to be connected as after this utility model offer under the left side of vehicle frame 1 Derailleur 11, the middle lower portion on vehicle frame 1 is also associated with front chain mover 12 and matches with big sprocket wheel 4.

Rear chiain-moving device of the prior art has four kinds of two class, below the rear chiain-moving device points 6 sections, first 4 sections is suitable for a left side 4 kinds of rear chiain-moving devices of the prior art of outer multi-speed bicycle are driven, the 5th, 6 section of rear chiain-moving device matches with Novel frame, Above 4 kinds of rear chiain-moving devices are merged into into 2 kinds of new rear chiain-moving device：

Structure existing with regard to this 6 sections of rear chiain-moving devices and its give with the attachment structure of the part such as vehicle frame is described in detail.

Shown in Fig. 2 and Fig. 2 a, the connection sheet that the first provided for this utility model is installed at rear axle is fixed rear group It is a in chain device, rear chiain-moving device 11, including base component 111, the movable member 112 containing connection rod set and chain guide member 113, the top half of base component 111 is connection sheet 11101, is directly installed on the joint portion i.e. rear axle concave part of vehicle frame 1 Left-external side on, the connection sheet 11101 that the latter half of the base component can be relatively fixed on vehicle frame does certain amplitude Rotate, the movable member 112 is movably coupled on the latter half in base component 111, the chain guide member 113 Movable member 112 is connected to, it is left that chain guide member 113 is located at chain guide member 113 with the interface of movable member 112 Upper lateral part.The chain guide member 113 combines chain, with movable member 112 relative to base component 111 the latter half Chain is optionally set to change between multiple chain drums of multistage flying wheel 9 when mobile.

Base component 111 in rear chiain-moving device 11 movably couples with movable member 112 for upper right lower-left；Movable member 112 movably couple with chain guide member 113 for upper left bottom right.

Rear chiain-moving device 11 is by the nut on rear axle 8 and the location and installation of set screw 11102 in rear axle and the rear axle groove of vehicle frame 1 On the left-external side in portion.

Package assembly of each component in the rear chiain-moving device on the outer multi-speed bicycle of left drive be：The base component position In the upper left side of the chain guide member, the base component is upper right lower left position relation with movable member；It is described can Mobile member is upper left bottom-right location relation with the chain guide member.

Shown in Fig. 3 and Fig. 3 a, for be installed at rear axle for second that this utility model is provided it is direct fixed after dial chain It is a in device, rear chiain-moving device 11, including base component 111, the movable member 112 containing connection rod set and chain guide member 113.The base component 111 is directly fixedly mounted on vehicle frame 1 and the joint portion left-external side of rear axle 8, and the movable member 112 is movable Be attached to base component 111, the chain guide member 113 is attached to movable member 112, and the chain guide member 113 connects Chain, so that chain is optionally made when movable member 112 is moved relative to base component 111 in the flywheel of multi-change speed Change between 9 multiple chain drums.

Package assembly of each component in the rear chiain-moving device 11 on the outer multi-speed bicycle of left drive be：Base component 111 Positioned at the upper left side of chain guide member 113；Base component 111 in rear chiain-moving device 11 is that upper right is left with movable member 112 Lower movable connection；Movable member 112 movably couples with chain guide member 113 for upper left bottom right.

Rear chiain-moving device 11 is by the nut on rear axle 8 and the location and installation of set screw 11102 in a left side for the rear axle concave part of vehicle frame 1 On outside.

Shown in Fig. 4, provide for this utility model the third be installed at rear chiain-moving device pintle it is direct fixed after dial It is a in chain device, rear chiain-moving device 11, including base component 111, the movable member 112 containing connection rod set and chain guide member 113, the base component 111 " on the rear chiain-moving device pintle 101 on vehicle frame 1, the movable member 112 movably couples To base component 111, the chain guide member 113 is attached to movable member 112, and the chain guide member 113 combines chain, With optionally make when movable member 112 is moved relative to base component 111 chain multistage flying wheel 9 multiple chain drums it Between change.

Base component 111 in rear chiain-moving device 11 movably couples with movable member 112 for upper right lower-left；Movable member 112 movably couple with chain guide member 113 for upper left bottom right, and chain guide member 113 is located at the bottom right of base component 111 Side.The base component 111 of rear chiain-moving device 11 is mounted axle bolt 11102 and is rotatably connected at behind the lower rear end in the left side of vehicle frame 1 On the left-external side of derailleur pintle 101, the screw thread for installing axle bolt 11102 is left-handed.

Shown in Fig. 5, after the 4th kind of connection sheet being installed at rear chiain-moving device pintle providing for this utility model is fixed It is a in derailleur, rear chiain-moving device 11, including base component 111, the movable member 112 containing connection rod set and chain guiding structure Part 113, the top half of base component 111 is the rear chiain-moving device that connection sheet 11101 is directly installed on the lower rear end in the left side of vehicle frame 1 On pintle 101, the latter half of the base component can relative frame do the rotation of certain amplitude, the movable member 112 is removable Base component 111 is attached to dynamicly, the chain guide member 113 is attached to movable member 112, the chain guide member 113 With reference to chain, optionally to make chain many when movable member 112 is moved relative to the latter half of base component 111 Change between multiple chain drums of the flywheel 9 of level speed change.

Base component 111 in rear chiain-moving device 11 movably couples with movable member 112 for upper right lower-left；Movable member 112 movably couple with chain guide member 113 for upper left bottom right.

Rear chiain-moving device 11 is positioned the location and installation of screw 11102 rear chiain-moving device pintle 101 of rear end under the left side of vehicle frame 1 On left-external side.

Fig. 6 show a bicycle frame 1 ', and there is depression 100 in its left back tail end outside, there is fixing hole above 100a, rear axle groove 100b；There is depression 200 in its right rearward end outside, there is fixing hole 200a, rear axle groove 200b above；A left side, it is right Side depression 100 with 200 to be symmetrical arranged, and be accompanied with and shape with it is left, the right rear axle groove for matching that is recessed matches somebody with somebody piece 103, after Axle groove is installed at right side depression 200 with piece 103.

A rear group of chain shown in Fig. 7, in the direct fixed rear chiain-moving device of the 5th kind of special type provided for this utility model Device 11 ', the rear chiain-moving device 11 ' is oriented to structure including special type base component 111 ', the movable member 112 containing connection rod set and chain Part 113.The shaped upper part of base component 111 ' matches with the left side depression 100 of the vehicle frame 1 ', there is two fixing holes above 102a ', is installed at the left side of vehicle frame 1 ' shown in Fig. 6 depression 100, and as shown in Figure 7a, the movable member 112 is movably coupled to Base component 111 ', the chain guide member 113 is attached to movable member 112, the connection chain of chain guide member 113, Optionally to make chain in many of the flywheel 9 of multi-change speed when movable member 112 is mobile relative to base component 111 ' Change between individual chain drum.

Shown in Fig. 8, a rear group of chain in the 6th kind of fixed rear chiain-moving device of special type connection sheet provided for this utility model Device 11 ', it includes special type base component 111 ', the movable member 112 containing connection rod set and chain guide member 113, the pedestal The top half of component 111 ' is that special type connection sheet 111a ', special type connection sheet 111a ' shaped upper part is recessed with the left side of the vehicle frame 1 ' Fall into 100 to match, there are two fixing hole 102a ' above. it is installed at the left side of vehicle frame 1 ' shown in Fig. 6 depression 100, such as Fig. 8 a institutes Show, the latter half 111b ' of the base component can be relatively fixed connection sheet 111a on vehicle frame 1 ' ' do turning for certain amplitude Dynamic, the movable member 112 is movably coupled on the latter half 111b ' in base component 111 ', the chain guide member 113 are attached to movable member 112, and chain guide member 113 is located at chain guide member with the interface of movable member 112 113 left upper portions.The chain guide member 113 combines chain, with movable member 112 relative under base component 111 ' Half part 111b ' it is mobile when chain is changed between multiple chain drums of multistage flying wheel 9.

Although only have selected selected embodiment to be illustrated this utility model, by reading in the disclosure Hold, this utility model those skilled in the art can very clearly, this practicality defined in without departing substantially from appended claims In the case of new scope, the rear chiain-moving device of existing numerous styles can be modified as being applied to the outer multi-speed bicycle of left drive Rear chiain-moving device.The above description of this utility model embodiment is only supplied to illustrate, not for by appended claims And its this utility model that equivalents are limited is limited.

Claims (9)

1. a kind of rear chiain-moving device suitable on the outer multi-speed bicycle of left driving, the rear chiain-moving device includes base component, containing even Three groups of components of movable member and chain guide member of bar group；The base component is connected with vehicle frame, the movable member Base component is movably coupled to, the chain guide member is attached to the movable member, the chain guide member in use It is corresponding with multistage flying wheel, so that connected chain is optionally made when movable member is moved relative to base component multistage Change between multiple sprocket wheels of flywheel；Characterized in that, the movable member is located at chain guide member left side；It is described Base component is located at the left side top of the chain guide member.

2. the rear chiain-moving device suitable on the outer multi-speed bicycle of left driving according to claim 1, it is characterised in that described Base component is upper right lower left position relation with movable member.

3. the rear chiain-moving device suitable on the outer multi-speed bicycle of left driving according to claim 1 and 2, it is characterised in that The movable member is located at the movable member right front with the interface of the chain guide member.

4. the rear chiain-moving device suitable on the outer multi-speed bicycle of left driving according to claim 1, it is characterised in that described Chain guide member is located at the chain guide member left upper portion with the interface of the movable member.

5. the rear chiain-moving device suitable on the outer multi-speed bicycle of left driving according to claim 3, it is characterised in that described Chain guide member is located at the chain guide member left upper portion with the interface of the movable member.

6. the rear chiain-moving device suitable on the outer multi-speed bicycle of left driving according to claim 2, it is characterised in that described Base component is located at base component left lower with the interface of the movable member.

7. according to claim 1 or 2 or 6 suitable for the rear chiain-moving device on the outer multi-speed bicycle of left driving, its feature exists In apertured is coated with an installation axle screw on the base component, for the base component to be movably coupled on vehicle frame Rear chiain-moving device pintle left-external side, the screw thread of the installation axle screw is left-handed.

8. the rear chiain-moving device suitable on the outer multi-speed bicycle of left driving according to claim 1, it is characterised in that described Particular recess mating shapes on the outside of the shape and vehicle frame rearward end of base component and vehicle frame binding site.

9. the rear chiain-moving device suitable on the outer multi-speed bicycle of left driving according to claim 8, it is characterised in that described Base component is made up of top connection sheet and bottom, and top connection sheet is connected as one with lower movable, connection sheet top with Particular recess mating shapes on the outside of the shape and vehicle frame rearward end of vehicle frame binding site.