CN101332852A - Neutral structure for bicycle - Google Patents
Neutral structure for bicycle Download PDFInfo
- Publication number
- CN101332852A CN101332852A CNA2008100877817A CN200810087781A CN101332852A CN 101332852 A CN101332852 A CN 101332852A CN A2008100877817 A CNA2008100877817 A CN A2008100877817A CN 200810087781 A CN200810087781 A CN 200810087781A CN 101332852 A CN101332852 A CN 101332852A
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- China
- Prior art keywords
- fluted disc
- rotating disk
- free
- bicycle
- neutral structure
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Abstract
The invention relates to an neutral-gear structure of a bicycle; wherein, one fluted disc set is provided with the neutral-gear structure; the neutral-gear structure includes a free fluted disc and a bearing; the center of the free fluted disc is pivoted and sheathed on the rotating component of the fluted disc set by the bearing, which leads the rotating component to be in a corresponding relation of opposite bidirectional idle with the free fluted disc. The chain of a double-wheel bicycle can be switched on the fluted disc set and the free fluted disc by the control of a speed shifting unit. The speed shifting unit is set with a neutral position which showes that the chain is hung on the free fluted disc. The free fluted disc is additionally provided with a safety device; the safety device forms an interlocking relation between the free fluted disc and the fluted disc set.
Description
Technical field
The present invention relates to bicycle structure, particularly be used for the neutral structure of bicycle.
Background technology
The problem that often faces when the user pulls bicycle, be exactly in the process that backward pulled of bicycle, foot-operated and crank can reverse backward, the foot-operated foreign object of collision easily, if the user stands in the side of bicycle, the probability of the foot-operated foot of damaging of the crank that is reversed is quite high.
Folded bicycle also faces above-mentioned problem, if the bicycle that folds will be moved backward, the foot-operated and crank of reversing certainly will also can block car body, and vehicle body can't be moved and damage.
The applicant formerly once proposed the scheme with folded bicycle collocation article basket holder and folding retractable shelf, and described scheme makes the two-wheel car of folding can be used as the glove trailer and uses, the function that the performance loading is moved, and existing patent applied for is in case.Yet the problem of above-mentioned foot-operated and crank reversing has limited the independence that trailer moves, and cause two-wheel car in elevator or other can't make in the time of will falling back in its rotating narrow space difficult obstacle and to arround injury.
Summary of the invention
Main purpose of the present invention is to utilize the structural principle of simple neutral gear to solve two-wheel car foot-operated and problem that crank can reverse backward when mobile backward.
For achieving the above object, the technical solution used in the present invention is:
A kind of neutral structure for bicycle is characterized in that:
Described neutral structure is located on the affiliated wherein fluted disc group of a two-wheel car; Described neutral structure comprises at least one free fluted disc, and described free fluted disc pivot is enclosed within on the runner assembly of described fluted disc group, and described runner assembly and described free fluted disc are the corresponding relation of relative idle running.
Compared with prior art, the advantage that adopts the present invention of technique scheme to have is:
When one person of being to use of this case effect affected two-wheel car mobile backward, crank and foot-operated maintenance were motionless, avoided crank and the foot-operated collision foreign object or the user's foot of damaging, and when pulling two-wheel car safer, side were made.
Two of this case effect is that two-wheel car is folded and cooperates article basket holder and when becoming trailer and using, because of foot-operated and crank all keep locating motionless, so trailer can be moved the independence that the enhancement trailer moves forward or backward.
This case effect three before two-wheel car ridden usefulness, the user can set described safety device earlier, make free fluted disc and fluted disc group constitute continuous action relation, foot-operated and crank can drive described free fluted disc, normally moves and rides and use safety to guarantee two-wheel car.
Description of drawings
Fig. 1 is to be the stereo appearance figure of example explanation this case enforcement sample attitude with the folding two-wheel car;
Fig. 2 is the three-dimensional exploded view that this case neutral structure is implemented on the rear tooth disk group;
Fig. 3 is the section-drawing that this case neutral structure is implemented on the rear tooth disk group;
Fig. 4 is the planar view that this case neutral structure is implemented on the rear tooth disk group;
Fig. 5 is the planar view that this case neutral structure merges a security component;
Fig. 6 is the stereo appearance figure that the folding two-wheel car cooperates this case neutral structure freely to move forward and backward when folded state;
Fig. 7 is the lateral plan that the folding two-wheel car cooperates this case neutral structure freely to move forward and backward when folded state;
Fig. 8 is the three-dimensional exploded view of fluted disc group before this case neutral structure is implemented on;
Fig. 9 is the scheme drawing of the gear switch device additional active retaining piece of this case;
Figure 10 is another enforcement scheme drawing of this case neutral structure;
Figure 11 is implemented on the three-dimensional exploded view of the neutral structure of preceding fluted disc group for this case;
Figure 12 is the combination appearance figure according to Figure 11 painted;
Figure 13 represents free fluted disc and runner assembly interlock for according to the front elevation that Figure 12 painted;
Figure 14 represents free fluted disc and the corresponding relation of runner assembly for relative idle running for according to the front elevation that Figure 12 painted;
Figure 15 is 15-15 part sectional view among Figure 13;
Figure 16 is 16-16 part sectional view among Figure 13;
Figure 17 is 17-17 part sectional view among Figure 13;
Figure 18 is for to show the action scheme drawing that executive component breaks away from first rotating disk according to Figure 17;
Figure 19 is implemented on the planar view of preceding fluted disc group for this case neutral structure.
The specific embodiment
As Fig. 1, be to be example with the folding two-wheel car, the enforcement sample attitude External view of this case neutral structure 10 is described.That the assembly relevant with this case neutral structure comprises is foot-operated 20, crank 21, preceding fluted disc group 30, rear tooth disk group 40 and chain 50.
As Fig. 2～Fig. 4, this case neutral structure 10 is implemented on the three-dimensional exploded view and the section-drawing of rear tooth disk group 40.Rear tooth disk group 40 comprises a plurality of transmission fluted discs 41, and the diameter of transmission fluted disc 41 and the number of teeth have class and change, and the pivot of each transmission fluted disc 41 concentric is enclosed within a runner assembly 42, and described runner assembly 42 pivots are enclosed within the end of trailing wheel flower hub 43.Above-mentioned transmission fluted disc 41, runner assembly 42, trailing wheel flower hub 43 are had continuous action relation each other.
The feature of this case is to establish a neutral structure 10 in described rear tooth disk group 40, described neutral structure 10 is made of a free fluted disc 11 and a bearing 12, the center of described free fluted disc 11 relies on described bearing 12 pivots to be enclosed within on the described runner assembly 42, and described bearing 12 makes described runner assembly 42 be the corresponding relation of relative bidirectional idling with described free fluted disc 11.Described neutral structure 10 can add and is located on the original rear tooth disk group 40, also can be changed by the arbitrary transmission fluted disc 41 in the described rear tooth disk group 40 and establish.This case embodiment is that the fluted disc with minimum diameter is free fluted disc 11.Be numbered 51 block element in graphic and be for axial block and locate described free fluted disc 11 and other driving cog dishes 41 and be installed in runner assembly 42.
Another what deserves to be explained is, when two-wheel car is ridden the time spent, if the user switches to the neutral gear gear accidentally, promptly can take place foot-operated 20 and crank 21 can't drive rear tooth disk group 40 and make car take place to slow down or stop problem, and this problem should be avoided.
One of solution, as Figure 10, be to establish a movable retaining piece 81 at gear switch device 80, described movable retaining piece 81 is done the general gear of described gear switch device 80 and neutral gear gear and is separated, described movable retaining piece 81 can be switched by the user, when the user desires to switch to the neutral gear gear, must push described movable retaining piece 81 earlier aside,, prevent to ride with the two-wheel car mistiming and cut as safety device with this to the neutral gear gear.
Two of solution is on described free fluted disc 11 safety device 60 to be set.As Fig. 5, described safety device 60 is to establish hole 61 at the above-mentioned block element 51 and the relative position of free fluted disc 11, so that place the location for latch 62, make runner assembly 42, block element 51 and free fluted disc 11 produce continuous action relation in view of the above, when chain 50 switches to free fluted disc 11, chain 50 drives described free fluted disc 11, and described described block element 51 of free fluted disc 11 interlocks and runner assembly 42 rotate trailing wheel flower hub 43 and trailing wheel.With regard to the user, if desire to ride, earlier described latch 62 is placed the location with before the two-wheel car, even when riding, switch to the neutral gear gear, can guarantee that still two-wheel car normally moves with two-wheel car.
As Fig. 6, Fig. 7, be that two-wheel car is folded and cooperates article basket holder 70 and become the scheme drawing that trailer uses.The neutral structure 10 of two-wheel car because of having this case, institute when thinking the trailer function foot-operated 20 and crank 21 all keep motionless, the user i.e. movable trailer forward or backward, and has promoted the independence that trailer moves.
As Fig. 8, the above-mentioned neutral structure 10 of this case also may be implemented in preceding fluted disc group 30.
As Figure 10, second embodiment of this case neutral structure is that described free fluted disc 11 is unidirectional ratchet structure with described runner assembly 42, mainly establish unidirectional ratchet 13 at described free fluted disc 11 endoporus, but establish the stopper 14 of elasticity activity at described runner assembly 42, when described stopper 14 engages with described unidirectional ratchet 13, described free fluted disc 11 produces continuous action relation with described runner assembly 42, and described free fluted disc 11 can unidirectional rotation performance transmission agency.Described stopper 14 can be subjected to a manually operated switch piece 15 control and in contract, make described free fluted disc 11 be the corresponding relation of relative bidirectional idling with described runner assembly 42.
As Figure 11 to Figure 14, the neutral structure 31 of fluted disc group 30 comprises a runner assembly 32, one free fluted disc 33 and at least one clutch component 34 before being implemented on.Described runner assembly 32 is fixed on the described preceding fluted disc group 30 with its rotation, the center of described free fluted disc 33 relies on a plurality of lubrication assembly 35 pivots to be enclosed within on the described runner assembly 32, and is the corresponding relation of relative bidirectional idling with described runner assembly 42.Described clutch component 34 is located on the described runner assembly 32, and it can make the described free fluted disc 33 of described runner assembly 32 interlocks, and described free fluted disc 33 is dallied on described runner assembly 32.
Above-mentioned runner assembly 32 comprises first rotating disk 23 and one second rotating disk 24 of a ring-type, and described first rotating disk 23 and second rotating disk 24 are fixed on described preceding fluted disc group 30 with the relative combination of its card.Relatively first rotating disk 23 and second rotating disk 24 of combination form a fluted disc groove 25 (as Figure 15) on circumference, are used for the inner periphery 331 of ccontaining described free fluted disc 33.
As Figure 16, a plurality of lubrication assemblies 35 are arranged in the corresponding aperture position 231,241 of first rotating disk 23 and second rotating disk 24, and can be contacted by the inner periphery 331 of described free fluted disc 33 by described fluted disc groove 25.Described lubrication assembly 35 comprises respectively that a connecting element 351 and pivot are enclosed within on the described connecting element 351 and rolling member 352 free to rotate, the inner periphery 331 of described free fluted disc 33 is contacted with the surface of described rolling member 352, rely on described rolling member 352 to reduce the rotation friction of described free fluted disc 33, make its rotation smooth and easy.
As Figure 13, Figure 14, Figure 17, Figure 18, described clutch component 34 comprises that an executive component 341, a pivot center 344 and connect axle center 346.Described executive component 341 is the cards that are positioned described first rotating disk 23 by means of described pivot center 344, and can be rotated for the heart by described pivot center 344, described connection axle center 346 is located in described executive component 341, it can pass the described set connecting bore 232 of first rotating disk, 23 cards and wear the fixed orifice 332 of pivot to free fluted disc 33 cards, in view of the above, described free fluted disc 33 has the relativeness of interlock with described runner assembly 32, but also is the described free fluted discs 33 of described runner assembly 32 interlocks.
The outside pivot of described pivot center 344 overlaps a spring 345, described spring 345 is between the head and executive component 341 of described pivot center 344, and described spring 345 makes the card of described executive component 341 closing normally at described first rotating disk 23.Bestow the application force of the described spring 345 of a compression, can make described executive component 341 break away from the card of described first rotating disk 23, and make described connection axle center 346 break away from the connecting bore 232 of described first rotating disk 23 and the fixed orifice of described free fluted disc 33, remove the continuous action relation of described free fluted disc 33 and described runner assembly 32, described described free fluted disc 33 is dallied on described runner assembly 32 and make.
The card of described first rotating disk 23 is established a receiver hole 233 in addition at the close position of described connecting bore 232, described executive component 341 is that the heart is rotated with described pivot center 344, when making described connection axle center 346 break away from connecting bore 232 and fixed orifice 332, described receiver hole 233 can receive described connection axle center 346, described executive component 341 still must be located in the card of first rotating disk 23, and avoids its other assemblies of rotation interference arbitrarily.
Figure 19 is implemented on the planar view of preceding fluted disc group for this case neutral structure.Above-mentioned gear switch device 80 can make chain 50 switch on free fluted disc 33 and preceding fluted disc group 30.If chain 50 chainings are on free fluted disc 33, and the connection axle center 346 of aforesaid operations element 341 breaks away from the connecting bore 232 of described first rotating disk 23 and the fixed orifice 332 of free fluted disc 33, represent that described free fluted disc 33 can dally on described runner assembly 32, when this moment, the user affected described two cars mobile backward, the trailing wheel driven wheel that rotates is spent hub 43 and is made chain 50 affect described free fluted disc 33, free fluted disc 33 dallies on described runner assembly 32, therefore runner assembly 32 promptly can interlock not described before fluted disc group 30, the situation that therefore relevant with preceding fluted disc group 30 crank 21 promptly can not take place to reverse backward.
Otherwise, pivot is worn at the connecting bore 232 of described first rotating disk 23 and the fixed orifice 332 of free fluted disc 33 in the connection axle center 346 of executive component 341, represent described free fluted disc 33 and the mutual continuous action relation of described runner assembly 32 tools, this moment, rotating crank 21 can make shroud group 30 drive described runner assembly 32 and 33 rotations of free fluted disc, and two-wheel car is moved ahead.
More than explanation is just illustrative for the purpose of the present invention; and nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited; can make many modifications, variation or equivalence, but all will fall within protection scope of the present invention.
Claims (10)
1. neutral structure for bicycle is characterized in that:
Described neutral structure is located on the affiliated wherein fluted disc group of a two-wheel car; Described neutral structure comprises at least one free fluted disc, and described free fluted disc pivot is enclosed within on the runner assembly of described fluted disc group, and described runner assembly and described free fluted disc are the corresponding relation of relative idle running.
2. according to the described neutral structure for bicycle of claim 1, it is characterized in that: described neutral structure is provided in a side of on described two-wheel car affiliated the rear tooth disk group or preceding fluted disc group.
3. according to the described neutral structure for bicycle of claim 1, it is characterized in that: described neutral structure comprises a bearing, and the center of described free fluted disc relies on described bearing to make described runner assembly and described free fluted disc be the corresponding relation of relative idle running; On the described free fluted disc safety device is set, makes described free fluted disc and described runner assembly produce continuous action relation.
4. according to the described neutral structure for bicycle of claim 1, it is characterized in that: described neutral structure is at described free fluted disc endoporus unidirectional ratchet to be set, but establishes the stopper of elasticity activity at described runner assembly.
5. according to the described neutral structure for bicycle of claim 1, it is characterized in that: above-mentioned runner assembly comprises first rotating disk and one second rotating disk of a ring-type, and described first rotating disk and second rotating disk are fixed on the described fluted disc group with the relative combination of its card; Relatively described first rotating disk and described second rotating disk of combination form a fluted disc groove on circumference, are used for the inner periphery of ccontaining described free fluted disc.
6. according to the described neutral structure for bicycle of claim 5, it is characterized in that: more comprise a plurality of lubrication assemblies, described a plurality of lubrication assembly is arranged in the corresponding aperture position of described first rotating disk and described second rotating disk, and can be contacted by the inner periphery of described free fluted disc by described fluted disc groove; Described lubrication assembly comprises respectively that a connecting element and pivot are enclosed within on the described connecting element and rolling member free to rotate, and the inner periphery of described free fluted disc contacts with the surface of described rolling member.
7. according to the described neutral structure for bicycle of claim 5, it is characterized in that: more comprise at least one clutch component, described clutch component comprise a positioning of rotating in the card of described first rotating disk and can with described card clutch executive component, described executive component has one and connects the axle center, described connection axle center according to the separation and reunion of the described executive component and first rotating disk with the fixed orifice clutch of described free fluted disc.
8. according to the described neutral structure for bicycle of claim 7, it is characterized in that: described executive component is the card that is positioned described first rotating disk by means of a pivot center, the outside pivot of described pivot center overlaps a spring, and described spring makes the card of described executive component closing normally at described first rotating disk; Described clutch component comprises that more one is located at the receiver hole of the card of described first rotating disk, is used for receiving the connection axle center of the fixed orifice that breaks away from described free fluted disc.
9. according to the described neutral structure for bicycle of claim 1, it is characterized in that: described two-wheel car has a variable-speed unit, and the gear switch device of described variable-speed unit is set a neutral gear gear and represented that the chain chaining of described fluted disc group is at described free fluted disc.
10. according to the described neutral structure for bicycle of claim 9, it is characterized in that: the gear switch device of above-mentioned variable-speed unit is provided with a movable retaining piece that can be switched at described neutral gear gear place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100877817A CN101332852B (en) | 2007-06-29 | 2008-03-26 | Neutral structure for bicycle |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200720155412 | 2007-06-29 | ||
| CN200720155412.8 | 2007-06-29 | ||
| CN2008100877817A CN101332852B (en) | 2007-06-29 | 2008-03-26 | Neutral structure for bicycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101332852A true CN101332852A (en) | 2008-12-31 |
| CN101332852B CN101332852B (en) | 2011-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100877817A Expired - Fee Related CN101332852B (en) | 2007-06-29 | 2008-03-26 | Neutral structure for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101332852B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009117898A1 (en) * | 2008-03-27 | 2009-10-01 | Lu I-Shyong | Bicycle neutral gear structure |
-
2008
- 2008-03-26 CN CN2008100877817A patent/CN101332852B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009117898A1 (en) * | 2008-03-27 | 2009-10-01 | Lu I-Shyong | Bicycle neutral gear structure |
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| Publication number | Publication date |
|---|---|
| CN101332852B (en) | 2011-07-20 |
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Granted publication date: 20110720 Termination date: 20170326 |
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| CF01 | Termination of patent right due to non-payment of annual fee |