CN201424113Y

CN201424113Y - Left-right drive interchanging structure for bicycle hubs

Info

Publication number: CN201424113Y
Application number: CN2009201469603U
Authority: CN
Inventors: 陈青树
Original assignee: Chosen Co Ltd
Current assignee: Chosen Co Ltd
Priority date: 2009-03-30
Filing date: 2009-03-30
Publication date: 2010-03-17
Anticipated expiration: 2019-03-30

Abstract

A left-right drive interchanging structure for bicycle hubs comprises a hub, a mandrel, a fixing ring, a linkage ring and a ratchet part, wherein the hub is equipped with a containing chamber, a blocking edge, a concave-convex ring and a snapping trough; a blocking part is fixed at the position of the blocking edge; a snap fastener is arranged inside the snapping trough; the fixing ring is contained inside the concave-convex ring of the hub; the linkage ring is contained inside the fixing ring, and the internal wall of the linkage ring is formed into unidirectional oblique tooth surfaces; a ratchet seat of the ratchet part is equipped with a plurality of ratchet grooves, and elastic parts and ratchets are disposed inside the ratchet grooves. By means of variation of combination methods, the hub structure is suitable for interchanging a left chain and a right chain of a performance bicycle.

Description

Drive about bicycle hub and exchange structure

Technical field

The utility model relates to a kind of bicycle pattern hub structure, especially refers to about a kind of bicycle hub to drive exchange structure, by the conversion of its array mode, can be applicable to that to make colored hub structure the left side of performance type bicycle puts chain and right exchange of putting chain.

Background technology

Press, known a kind of bicycle pattern hub structure, please by Figure 10, shown in Figure 11, it includes: an axle 60, one flower hub 70, one makes rotating ring 80 and a ratchet dish 90 constitutes, one axle 60 is equipped with a plurality of bearings 61, and insert in the colored hub 70 and form and articulate the location with bearing 61, the inwall place of one flower hub, 70 sides has been wholely set permanent seat 71, and the concavo-convex setting that the inner edge of permanent seat 71 is square, one makes the medial extremity that rotating ring 80 places permanent seat 71, and form fixing with male and fomale(M﹠F) 81, and the convex-concave surface 82 that the inwall of making rotating ring 80 also is square, one ratchet dish 90 has fluted disc 91 and ratchet base 92 two parts, its ratchet base 92 places offer a plurality of ratchet slots 93, and all be provided with spring 94 and ratchet 95 in ratchet slot 93 places, insert in the colored hub 70 by ratchet base 92 ends again, this ratchet base 92 is to be positioned to do rotating ring 80 inside, and ratchet 95 is subjected to the pushing and pressing of spring 94 and push up the convex-concave surface 82 of making rotating ring 80 inwalls outward, again in the flower hub 70 two ends all screw lock fixedly spiral shell spare is arranged, promptly form the combination of bicycle pattern hub structure thus.

When bicycle moves ahead and rotates ratchet dish 90, this ratchet 95 can outwards withstand the convex-concave surface 82 of making rotating ring 80, can drive colored hub 70 and be equidirectional rotation, again when ratchet dish 90 does not have rotation, the rotation of flower hub 70 can't drive ratchet dish 90 and rotate, if chain is put with right when putting the exchange of chain in the left side that known bicycle hub structure is applied to performance type bicycle, the spring 94 at ratchet base 92 places is carried out the exchange of position with ratchet 95, can reach a left side that is applicable to performance type bicycle and put chain and right exchange effect of putting chain.

The above-mentioned known configurations of detailed sight is not difficult to realize that it has remained a little weak point, and major cause is summarized as follows:

One, its ratchet 95 is subjected to the pushing and pressing of spring 94 and conflicts to the inwall of making rotating ring 80, drive flower hub 70 thus and rotate, yet the inwall of making rotating ring 80 is the convex-concave surface 82 of projection of being square, and makes that the conflict area of ratchet 95 is too small, and the situation of structural strength deficiency is arranged.

Two, its inwall of making rotating ring 80 convex-concave surface 82 of projection that is square makes the conflict of ratchet 95 highly increase, and the volume of promptly making rotating ring 80 is bigger, causes ratchet 95 to increase in the amplitude of fluctuation of doing on the rotating ring 80, and the under-sensitive situation is arranged.

Three, it does permanent seat 71 places that rotating ring 80 is placed in colored hub 70, and by spending hub 70 inwalls and ratchet dish 90 to form axial location, still has suitable gap and make rotating ring 80 with ratchet dish 90, make and do the space that rotating ring 80 has longitudinal travel, promptly cause ratchet dish 90 and the abrasion of making rotating ring 80 easily, and reduce the durability of colored hub structure.

The utility model content

The purpose of this utility model is to provide to drive about a kind of bicycle hub exchanges structure, to overcome the defective that exists in the known technology.

For achieving the above object, drive about the bicycle hub that the utility model provides and exchange structure, it includes: a flower hub, one axle, one set collar, one interlock ring, rachet combines, one flower hub is articulated in the wheel shaft place of bicycle rear, it axially offers accommodation space, the inwall place of this accommodation space is sequentially provided with the retaining edge from inside to outside, concavo-convex ring and Ka Gou, retaining edge place is fixed with block piece, and block piece inwardly blocks the bearing of colored hub inboard, this concavo-convex ring is formed with the medial surface at square concavo-convex interval, and axle is passed accommodation space and form pivot joint with a plurality of bearings, this Ka Gouchu is fixed with button and supports part again, it is C shape button that button supports part, one set collar is located in the concavo-convex ring place of colored hub, and cooperation is formed with the outer projection that can be interlocked, and the madial wall of set collar then is provided with a plurality of interior projections, should in projection shape that is square at interval equidistantly arrange, one interlock ring is placed in the inside of set collar, and with the male and fomale(M﹠F) of outer wall formation and the interior projection snap fit of set collar, the inwall place of interlock ring then is formed with the pitch face of unidirectional deflection, the two ends of one rachet are formed with fluted disc and ratchet base respectively, and be sheathed on the axle place with through hole, and ratchet base is located in the concavo-convex ring place of colored hub accommodation space, this fluted disc can be the multiple-piece unitized construction, reach the effect of rear change thus, the outside face of ratchet base offers a plurality of ratchet slots, the dual-side of this ratchet slot is formed with the first ratchet hole and the second ratchet hole respectively, be equiped with elastic component and ratchet in this ratchet slot again, and but the bottom of ratchet is provided with the positioning end of clip in the first ratchet hole or the second ratchet hole, fluted disc end lock is provided with a closure in addition, promptly locatees the accommodation space end of rachet in the flower hub.

When performance type bicycle carry out a left side when putting chain with right exchange of putting chain as in order to adapt to the demand of performance venue, its rachet is installed on the bicycle state that chain is put on the right side, this elastic component is arranged at the first ratchet hole, and ratchet is arranged at the second ratchet hole, and when ratchet moves ahead in bicycle, can contact at the pitch face of interlock ring and form the interlock effect, rachet is installed on the bicycle state that chain is put on a left side in addition, the interlock ring is to insert in the colored hub with the another side direction when combination, and the male and fomale(M﹠F) of interlock ring still can be sticked in the interior projection of set collar, and the pitch face that can form the interlock ring produces the deflection of other direction, this is installed on the elastic component and the ratchet at ratchet base place again, cooperate a left side to put the bicycle of chain, elastic component changes to and is arranged at the second ratchet hole, and ratchet is arranged at place, the first ratchet hole, by the conversion of its array mode, can produce and be same as the right side and put the bicycle of chain and make flowing mode, make colored hub structure can be applicable to that the left side of performance type bicycle puts chain and right exchange of putting chain.

The utility model contrast effect that known technology had:

One, by the conversion of array mode, can cooperate the left side of performance type bicycle to put chain and right exchange of putting chain, and ratchet contacts at the pitch face of interlock ring, the conflict area of this helical teeth shape is bigger than the conflict area of known side's dentation, can promote structural intensity thus, to increase its durability.

Two, its interlock ring is to have the pitch face of folk prescription to deflection, and forms start with the ratchet at pitch face and ratchet base place, can reduce the height of conflicting by pitch face, and dwindle the volume of interlock ring, can reduce the amplitude of fluctuation of ratchet, to improve its sensitivity.

Three, its set collar is fixed in the concavo-convex ring place of colored hub, and the interlock ring is fixed in the inner of set collar, supporting part with block piece and button again establishes in dual-side formation folder, can prevent that the generation of set collar and interlock ring from endwisely slipping, reduce it thus and axially rub and collision, with rotary resistance and its durability of increase that reduces rachet.

Description of drawings

Fig. 1 is a block diagram of the present utility model.

Fig. 2 is a three-dimensional exploded view of the present utility model.

Fig. 3 is a side sectional view of the present utility model.

Fig. 4 is that analysing and observe of ratchet of the present utility model place made cardon ().

Fig. 5 is the scheme drawing that chain bicycle is put on the right side that is arranged at of the present utility model.

Fig. 6 is that analysing and observe of ratchet of the present utility model place made cardon (two).

Fig. 7 is the scheme drawing that chain bicycle is put on a left side that is arranged at of the present utility model.

Fig. 8 is the ratchet site plan that chain bicycle is put on the right side that is arranged at of the present utility model.

Fig. 9 is the ratchet site plan that chain bicycle is put on a left side that is arranged at of the present utility model.

Figure 10 is the block diagram of known technology.

Figure 11 is the cutaway view at the ratchet place of known technology.

Primary clustering nomenclature in the accompanying drawing

The utility model part:

Flower hub----10 accommodation space---11

Retaining edge----12 concavo-convex rings----13

Ka Gou----14 block pieces-----15

----16 buttons support part----17 to bearing

Axle-----20

Set collar----30 outer projections----31

Interior projection----32

Interlock ring----40 male and fomale(M﹠F)s----41

Pitch face----42 perforation-----43

Rachet----50 fluted discs-----51

Ratchet base----52 ratchet slots----521

----522 second ratchet hole--523, ratchet hole

Elastic component----53 ratchets-----54

Through hole----55 closures----56

The known technology part:

Axle----60 bearings-----61

Flower hub----70 permanent seats----71

----80 male and fomale(M﹠F)s----81 of making rotating ring

Convex-concave surface---82

Ratchet dish----90 fluted discs-----91

Ratchet base----92 ratchet slots----93

Spring----94 ratchets-----95

The specific embodiment

Further understand and understanding for having the purpose of this utility model, feature and effect, details are as follows for following conjunction with figs..

See also Fig. 1 and shown in Figure 2 earlier, drive about a kind of bicycle hub and exchange structure, it includes: a flower hub 10, one axle 20, one set collar 30, one interlock ring 40, rachet 50 combines, one flower hub 10 is articulated in the wheel shaft place of bicycle rear, it axially offers accommodation space 11, the inwall place of this accommodation space 11 is sequentially provided with retaining edge 12 from inside to outside, concavo-convex ring 13 and card ditch 14, retaining edge 12 places are fixed with block piece 15, and block piece 15 inwardly blocks the bearing 16 of colored hub 10 inboards, this concavo-convex ring 13 is formed with the medial surface at square concavo-convex interval, and axle 20 is passed accommodation space 11 and form pivot joint with a plurality of bearings 16, these card ditch 14 places are fixed with and buckle to part 17 again, it is C shape button that button supports part 17, one set collar 30 is located in concavo-convex ring 13 places of colored hub 10, and cooperation is formed with the outer projection 31 that can be interlocked, and the madial wall of set collar 30 then is provided with a plurality of interior projections 32, should in projection 32 shape that is square at interval equidistantly arrange, one interlock ring 40 is placed in the inside of set collar 30, and with the male and fomale(M﹠F) 41 of outer wall formation and interior projection 32 snap fit of set collar 30, the inwall place of interlock ring 40 then is formed with the pitch face 42 of unidirectional deflection, it is made that this set collar 30 and interlock ring 40 are all a steel material again, and interlock ring 40 vertically offers a plurality of perforation 43, the convenient dismounting used so that plugging of hand tool to be provided, the two ends of one rachet 50 are formed with fluted disc 51 and ratchet base 52 respectively, and be sheathed on axle 20 places with through hole 55, and ratchet base 52 is located in concavo-convex ring 13 places of colored hub 10 accommodation spaces 11, this fluted disc 51 can be the multiple-piece unitized construction, reach the effect of rear change thus, the outside face of ratchet base 52 offers a plurality of ratchet slots 521, the dual-side of this ratchet slot 521 is formed with the first ratchet hole 522 and the second ratchet hole 523 respectively, be equiped with elastic component 53 and ratchet 54 in this ratchet slot 521 again, and but the bottom of ratchet 54 is provided with the positioning end 541 of clip in the first ratchet hole 522 or the second ratchet hole 523, fluted disc 51 ends lock is provided with a closure 56 in addition, promptly locate accommodation space 11 ends of rachet 50 in flower hub 10, this ratchet 54 is that a steel material is made again.

The combination of its structure, please consult Fig. 2 again, shown in Figure 3, be provided with a plurality of bearings 16 in the flower hub 10 and pass axle 20 and form pivot joint, retaining edge 12 places of these flower hub 10 accommodation spaces 11 are provided with block piece 15, and block piece 15 blocks the bearing 16 of medial extremity, the effect that prevents bearing 16 displacements is promptly arranged, set collar 30 is located in the accommodation space 11 of colored hub 10, and projection 31 cooperates concavo-convex ring 13 in conjunction with the location in addition, this set collar 30 promptly is subjected to the buckle of concavo-convex ring 13 and forms fixing, can be and closely cooperate and non-dismountable, be provided with interlock ring 40 in the inner edge place of set collar 30 again, and form fixing by the male and fomale(M﹠F) 41 of interlock ring 40 and the interior projection 32 of set collar 30, to detain card ditch 14 places that are fastened on colored hub 10 to part 17 again, this block piece 15 supports part 17 with button and is positioned to keep off edge 12 and card ditch 14 places, folder is established set collar 30 and interlock ring 40 in concavo-convex ring 13 places thus, can prevent that set collar 30 and interlock ring 40 from producing the situation of axial slip, ratchet base 52 places of one rachet 50 are installed with flexible 53 and ratchet 54, and elastic component 53 is with all interchangeable installing of ratchet 54 and respectively at the

first ratchet hole

522 or 523 places, the second ratchet hole, this rachet 50 is inserted in the accommodation space 11 of colored hub 10 with ratchet base 52 ends, and ratchet base 52 is placed in the medial extremity of interlock ring 40, ratchet 54 was subjected to the outer top of elastic component 53 and contacted at the pitch face 42 of interlock ring 40 this moment, wherein, interlock ring 40 is all steel material with ratchet 54 and makes, can increase structural intensity, closure 56 screw locks are on axle 20 in addition, and to the fluted disc 51 end packings of rachet 50, and fixedly rachet 50 on flower hub 10.

The start situation that it is actual, see also Fig. 3 again, 4,5 and cooperate shown in Figure 2, when stepping bicycle pedal when making it to overtake, the fluted disc 51 that this chain drives rachet 50 rotates, ratchets 54 in this ratchet slot 521 are subjected to elastic component 53 outer tops to be extratensive type to be preset as elastic component 53 at this and to be arranged at the first ratchet hole 522, and ratchet 54 is arranged at the second ratchet hole 523, the outer end of ratchet 54 props up the pitch face 42 of interlock ring 40 medial surfaces at this moment, rachet 50 can't be rotated voluntarily, this interlock ring 40 forms synchronously with male and fomale(M﹠F) 41 and interior projection 32 with set collar 30, and the outer projection 31 of set collar 30 forms synchronously with concavo-convex ring 13, can drive interlock ring 40, veer was rotated before set collar 30 and flower hub 10 all were wheel, when bicycle coasting, flower hub 10 forms the rotation that moves ahead, and interlock set collar 30 and interlock ring 40, ratchet 54 is subjected to pushing of pitch face 42 and swings to elastic component 53 ends at this moment, can be had the effect of unidirectional drive flower hub 10 by above-mentioned start.

When performance type bicycle carry out a left side when putting chain with right exchange of putting chain as in order to adapt to the demand of performance venue, the continuous Fig. 6 that sees also, 7,8, shown in 9, its Fig. 6, Fig. 7 is installed on the bicycle state that chain is put on the right side for rachet 50, as the described array mode of epimere, this elastic component 53 is arranged at the first ratchet hole 522, and ratchet 54 is arranged at the second ratchet hole 523, and ratchet 54 is when bicycle moves ahead, can contact at the pitch face 42 of interlock ring 40 and form the interlock effect, again by Fig. 8, Fig. 9 is installed on the bicycle state that chain is put on a left side for rachet 50, the array mode of this colored hub structure, interlock ring 40 is to insert with the another side direction in the colored hub 10 when combination, and the male and fomale(M﹠F) 41 of interlock ring 40 still can be sticked in the interior projection 32 of set collar 30, and the pitch face 42 that can form interlock ring 40 produces the deflection of other direction, this is installed on the elastic component 53 and the ratchet 54 at ratchet base 52 places again, cooperate a left side to put the bicycle of chain, elastic component 53 changes to and is arranged at the second ratchet hole 523, and ratchet 54 is arranged at 522 places, the first ratchet hole, conversion by its array mode, can produce and be same as the right side and put the bicycle of chain and make flowing mode, can be applicable to that to make colored hub structure the left side of performance type bicycle puts chain and right exchange of putting chain.

By the structure of above-mentioned specific embodiment, can obtain following benefit:

One) by the conversion of array mode, can cooperate the left side of performance type bicycle to put chain and right exchange of putting chain, and ratchet 54 contacts at the pitch face 42 of interlock ring 40, the conflict area of this helical teeth shape is bigger than the conflict area of known side's dentation, can promote structural intensity thus, to increase its durability;

Two) its interlock ring 40 is to have the pitch face 42 of folk prescription to deflection, and, can reduce the height of conflicting by pitch face 42, and dwindle the volume of interlock ring 40 with the ratchet 54 formation starts of pitch face 42 with ratchet base 52 places, can reduce the amplitude of fluctuation of ratchet 54, to improve its sensitivity;

Three) its set collar 30 is fixed in concavo-convex ring 13 places of colored hub 10, and interlock ring 40 is fixed in the inner of set collar 30, supporting part 17 with block piece 15 and button again establishes in dual-side formation folder, can prevent that set

collar

30 and 40 generations of interlock ring from endwisely slipping, reduce it thus and axially rub and collision, with rotary resistance and its durability of increase that reduces rachet 50.

The above only is a preferred embodiment of the present utility model, when not limiting the scope that the utility model is implemented with this; Promptly the equalization of being done according to the utility model claim generally changes and modifies, and all should still belong in the scope that claim of the present utility model contains.

Claims

1, drive the exchange structure about a kind of bicycle hub, it is characterized in that, include: a flower hub, an axle, a set collar, an interlock ring, rachet combine;

One flower hub is articulated in the wheel shaft place of bicycle rear, it axially offers accommodation space, the inwall place of this accommodation space is sequentially provided with retaining edge, concavo-convex ring and Ka Gou from inside to outside, retaining edge place is fixed with block piece, and block piece inwardly blocks the bearing of colored hub inboard, this concavo-convex ring is formed with the medial surface at square concavo-convex interval, and this Ka Gouchu is fixed with button and supports part again;

One axle is passed accommodation space and is formed pivot joint with a plurality of bearings;

One set collar is located in the concavo-convex ring place of colored hub, and cooperates and to be formed with the outer projection that can be interlocked, and the madial wall of set collar then be provided with a plurality of in projections;

One interlock ring is placed in the inside of set collar, and with the male and fomale(M﹠F) of outer wall formation and the interior projection snap fit of set collar, the inwall place of interlock ring then is formed with the pitch face of unidirectional deflection;

The two ends of one rachet are formed with fluted disc and ratchet base respectively, and be sheathed on the axle place with through hole, and ratchet base is located in the concavo-convex ring place of colored hub accommodation space, the outside face of ratchet base offers a plurality of ratchet slots, the dual-side of this ratchet slot is formed with the first ratchet hole and the second ratchet hole respectively, be equiped with elastic component and ratchet in this ratchet slot again, fluted disc end lock is provided with a closure in addition, promptly locatees the accommodation space end of rachet in the flower hub.

2, drive the exchange structure about bicycle hub according to claim 1, it is characterized in that, it is C shape button that button supports part.

3, drive to exchange structure about bicycle hub according to claim 1, it is characterized in that, the interior projection shape that is square is at interval equidistantly arranged.

4, drive the exchange structure about bicycle hub according to claim 1, it is characterized in that fluted disc is the multiple-piece unitized construction.

5, drive the exchange structure about bicycle hub according to claim 1, it is characterized in that elastic component is arranged at the first ratchet hole, and ratchet is arranged at the second ratchet hole.

6, drive the exchange structure about bicycle hub according to claim 1, it is characterized in that elastic component is arranged at the second ratchet hole, and ratchet is arranged at the first ratchet hole.

7, drive the exchange structure about bicycle hub according to claim 1, it is characterized in that set collar, interlock ring and ratchet are steel material.

8, drive the exchange structure about bicycle hub according to claim 1, it is characterized in that, the interlock ring vertically offers a plurality of convenient perforation of removing use for hand tool plugs.