CN201390347Y

CN201390347Y - Mobile structure of foldable bicycle

Info

Publication number: CN201390347Y
Application number: CN200920144681U
Authority: CN
Inventors: 林益成
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-26
Filing date: 2009-02-26
Publication date: 2010-01-27
Anticipated expiration: 2019-02-26

Abstract

A mobile structure of a foldable bicycle comprises a foldable bicycle consisting of a bicycle frame, a rear fork end, a front wheel, a rear wheel, a crank shaft, a seat cushion and a seat tube, a front dragging wheel structure pivoted with a pulley and fixed at the bottom part of the retractable seat tube of the foldable bicycle, a rear dragging wheel structure provided with a casing pipe and fixed to the rear fork end of the bicycle through a fixing end, wherein the peripheral surface of the casing pipe is provided with a long groove hole with a perforation bore, and the long groove hole is formed by extending of the fixing end of the casing pipe toward the free end and forming an arc-shaped section with a bent angle of 90 degrees as well as the forming of a concave arc by upward concave of the tail end of the arc-shaped section, a retractable rod pivoted with a pulley at the bottom end thereof, wherein after penetrating the casing pipe, the top surface of the retractable rod is provided with an elastic element, and a stop block capable of blocking the elastic element is formed at the top part of the retractable rod, and a foot rest lever is fixed with the retractable rod in a feed-through manner, and as a result, when the bicycle moves forward, the pulley parallel to the rear wheel touches the ground and rotates accordingly, and when stepping on the footrest, the pulley moves downward and rotates to be vertical, which is favorable for the dragging of the folded bicycle.

Description

The moving structure of folding bicycle

Technical field

The utility model provides a kind of technical field of folding bicycle, refers to its technical moving structure that a kind of folding bicycle is provided especially, makes to tow wheel before the bicycle folding and be parallel to wheel, folding after, tow mobile easily.

Background technology

Press, though the bicycle invention is the history in existing hundreds of years so far, yet the feelings that people have deep love for bicycle do not reduce, on the contrary because now energy shortage and oil spike, and allow the sales volume of bicycle heighten, though the benefit of bicycle is quite a lot of, but also have some problems, volume as bicycle is comparatively huge, and ride instead of walk with bicycle, its movable scope is also limited, so if prolong its action radius just need be auxiliary with other the vehicle, as carrying of automobile, train, transporting or the like of rapid transit, but carrying its baggage container, automobile to be mounted with difficulty, and train, transporting of rapid transit, some is restricted to the length and width height of bicycle, so force bicycle to develop toward the folding bicycle direction.

And, previous folding bicycle, if directly move this bicycle after folding is suitable difficulty, the folding bicycle that therefore preceding case application is arranged, it is equiped with on bicycle and tows wheel, can make things convenient for bicycle freely to tow rapid transit up and down by towing wheel, or move this folding bicycle to required place.

But the moving structure of its above-mentioned known folding bicycle still has following disappearance:

The moving structure of known folding bicycle, it is vertical with the direct of travel of bicycle to tow wheel thereafter, later when towing wheel if any the situation of contacting to earth, can form the resistance that bicycle advances and maybe may cause danger.

Therefore, at the existing problem points of above-mentioned conventional construction, how to develop a kind of innovation structure that has more desirable practicality, the ardent hope of real customer institute also is that relevant dealer must make great efforts target and the direction that research and development break through.

In view of this, the creator this in manufacturing development and the design experiences of being engaged in Related product for many years, at above-mentioned target, in detail after design and the scrupulous assessment, eventually the utility model of a true tool practicality.

Summary of the invention

The purpose of this utility model is, a kind of moving structure of folding bicycle is provided, and to solve the defective that above-mentioned known techniques exists, makes to tow wheel before the bicycle folding and be parallel to wheel, folding after, tow mobile easily.

The technical characterstic of dealing with problems: a kind of moving structure of folding bicycle includes:

One folding bicycle, this folding bicycle is combined by a vehicle frame, a Rear Ends/Dropouts, a front vehicle wheel, a rear wheel, a crank, a seat cushion and a pipe, tow wheel construction before one, tow wheel construction before being somebody's turn to do and be pivoted with a pulley, tow wheel construction before this and be fixed in the telescopic seat pipe of folding bicycle bottom; It is characterized in that:

Tow wheel construction after one, towing wheel construction after this has a cannula portion and is fixed on this Rear Ends/Dropouts of this bicycle with a fixed end, this cannula portion side face is provided with a long slot bore that connects internal diameter, this long slot bore is extended and forms in nearly free end the segmental arc of one or nine ten degree bendings towards free end by the fixed end of this cannula portion, this segmental arc end upwards is recessed to form a concave arc, one expansion link, the bottom of this expansion link pulley that is pivoted, after this expansion link runs through cannula portion, in the sheathed elastic element of end face, one block is formed on this expansion link top, this block can stop elastic element, one foot-driven lever, this foot-driven lever is worn by this long slot bore and is passed through and be fixed to this expansion link, in view of the above, before the bicycle so the pulley that is parallel to rear wheel contact to earth also can with rotation, presser feet pedal then pulley moves down and goes to vertically simultaneously, does well out of to tow folding back bicycle.

Wherein, this elastic element is a spring.

Wherein, a block is formed on this expansion link top, and its formation is configured to one-body molded.

Wherein, a block is formed on this expansion link top, and its formation is configured to the screw thread screw lock.

Wherein, a block is formed on this expansion link top, and it is fixing that its formation is configured to welding.

Wherein, the pulley off normal that tows wheel construction after this is in the side of folding bicycle, and when folding bicycle towed, the pulley of off normal was the non-wheel part that tows of high this folding bicycle of support, avoids non-the towing of folding bicycle to take turns the ground that partly rubs.

The effect of contrast prior art: the moving structure of this folding bicycle of prior art, it is vertical with the direct of travel of bicycle to tow wheel thereafter, later when towing wheel if any the situation of contacting to earth, can form the resistance that bicycle advances and maybe may cause danger.The moving structure of folding bicycle of the present utility model, towing wheel construction system when execution does not tow task after this up receives, and the process of receiving is transferred simultaneously, tow wheel construction system after allowing and be parallel to the bicycle direction of advancing, can not cause resistance yet or cause danger so contact to earth, also turn to simultaneously and press down, tow wheel construction after making, and be beneficial to towing behind the bicycle folding perpendicular to the bicycle direction of advancing.

The technology that relevant the utility model adopted, means and effect thereof after lifting a preferred embodiment now and cooperating graphic being described in more detail in, are believed the above-mentioned purpose of the utility model, structure and feature, when can by one deeply and concrete understanding.

Description of drawings

Fig. 1: one embodiment of the present utility model becomes the bicycle view.

Fig. 2: one embodiment of the present utility model becomes the folding bicycle view.

Fig. 3: tow the wheel construction perspective exploded view behind the one embodiment of the present utility model.

Fig. 4: tow wheel construction stereoscopic motion scheme drawing behind the one embodiment of the present utility model.

The specific embodiment

Consult Fig. 1 to shown in Figure 4, the utility model provides a kind of moving structure of folding bicycle, comprising:

One folding bicycle 10, this folding bicycle 10 have a vehicle frame 11, a Rear Ends/Dropouts 12, two wheels 13, a crank 14 and a seat cushion 15 and a pipe 16;

Tow wheel construction 20 after one, tow wheel construction 20 after this and include a cannula portion 21, one pulley 22, one expansion link 23, one elastic element 24 and a foot-driven lever 25, the fixed end of this cannula portion 21 is fixedly held on the Rear Ends/Dropouts 12 of folding bicycle 10, these expansion link 23 front ends this pulley 22 that is pivoted, after this expansion link 23 is worn and is passed through this cannula portion 21, sheathed elastic element 24 is on expansion link 23, one block 231 is formed on these expansion link 23 tops, this formation structure can be formed in one, screw thread screw lock or welding are fixing, these block 231 block elastic elements 24, the peripheral wall surfaces of this cannula portion 21 is provided with a long slot bore 211 that connects internal diameter, this long slot bore 211 is extended towards free end by the fixed end of cannula portion 21, and form the segmental arc of one or nine ten degree bendings in nearly free end, this segmental arc end upwards is recessed to form a concave arc 212, one foot-driven lever 25, this foot-driven lever 25 at pulley 22 when bicycle is advanced direction, wear to pass through by this long slot bore 211 and be fixed on this expansion link 23, in view of the above, when pin is stepped on foot-driven lever 25 down the time, foot-driven lever 25 can gradually gradually be rotated into downwards perpendicular to wheel 13 directions by being parallel to wheel 13 directions along this long slot bore 211, and this foot-driven lever 25 holding and the blocking location of concave arc 212 because of elastic element 24 at last, this pulley 22 is fixed into perpendicular to the bicycle direction of advancing, can tow this moment, and desire is replied the bicycle forward travel state, then foot-driven lever 25 is stepped on from concave arc 212, elastic element 24 will be with expansion link 23, pulley 22 and foot-driven lever 25 top repositions, the process pulley 22 that rises can be parallel to the bicycle direction of advancing because of long slot bore 211 changes into again, when its bicycle is advanced, pulley 22 contacts to earth and also can follow rotation, also can not cause and hinder or danger.

Tow wheel construction 30 before one, should before tow that wheel construction 30 has a cannula portion 31 and this cannula portion 31 sides are provided with protuberance 32, this protuberance 32 extends toward vertical direction a U type seat 33, this U type seat 33 is to be pivoted with a pulley 34, before tow wheel construction 30 cannula portion 31 be sheathed on seat pipe 16 bottoms, and cannula portion 31 also forms an elasticity profile groove and two auricles of elasticity profile groove both sides, when two auricles are locked with screw 311, cannula portion 31 is closely entangled be fixed on bicycle saddle tube 16 bottoms.

Above-mentioned this elastic element 24 can be spring.

By above-mentioned combination, tow wheel construction 20 after this, before tow wheel construction 30 when this folding bicycle 10 launches to use as bicycle, can on contract and can not hinder to the normal ground that pastes of two wheels 13 and rotate, and as after when towing the situation that wheel construction 20 contacts to earth, should after tow wheel construction 20 pulley 22 be parallel to the bicycle direction of advancing, so also can follow rotation, do not hinder or danger and can not form, and after its folding bicycle 10 folds, can to press down rotation fixing with towing wheel construction 20 after this, before tow wheel construction 30 and pull out fixing, and with its

pulley

22,34 slide with pasting, and hold seat cushion 15 positions, and can tow this folding bicycle 10 quite easily, reach and still be easy to the effect that moves behind the bicycle folding.

Above-mentionedly tow pulley 22 off normals of wheel construction 20 in the side of folding bicycle 10 after this, when folding bicycle 10 tows, the pulley 22 of off normal is the non-wheel part that tows of high this folding bicycle 10 of support, avoids non-the towing of folding bicycle 10 to take turns the ground that partly rubs.

Preamble is that technical characterictic of the present utility model carries out specific description at preferred embodiment of the present utility model; Only, the personage who is familiar with this technology is when can changing and revise the utility model not breaking away under spirit of the present utility model and the principle, and these changes and modification all should be covered by in the category that is defined as the application's claim.

Claims

1. the moving structure of a folding bicycle includes:

Tow wheel construction after one, towing wheel construction after this has a cannula portion and is fixed on this Rear Ends/Dropouts of this bicycle with a fixed end, this cannula portion side face is provided with a long slot bore that connects internal diameter, this long slot bore is extended and forms in nearly free end the segmental arc of one or nine ten degree bendings towards free end by the fixed end of this cannula portion, this segmental arc end upwards is recessed to form a concave arc, one expansion link, the bottom of this expansion link pulley that is pivoted, after this expansion link runs through cannula portion, in the sheathed elastic element of end face, a block is formed on this expansion link top, and this block can stop elastic element, one foot-driven lever, this foot-driven lever are worn by this long slot bore and are passed through and be fixed to this expansion link.

2. the moving structure of folding bicycle as claimed in claim 1 is characterized in that, this elastic element is a spring.

3. the moving structure of folding bicycle as claimed in claim 1 is characterized in that, a block is formed on this expansion link top, and its formation is configured to one-body molded.

4. the moving structure of folding bicycle as claimed in claim 1 is characterized in that, a block is formed on this expansion link top, and its formation is configured to the screw thread screw lock.

5. the moving structure of folding bicycle as claimed in claim 1 is characterized in that, a block is formed on this expansion link top, and it is fixing that its formation is configured to welding.

6. the moving structure of folding bicycle as claimed in claim 1 is characterized in that, the pulley off normal that tows wheel construction after this is in the side of folding bicycle.