CN202449168U - Bicycle variable-speed shifting mechanism with multi-direction releasing operation - Google Patents
Bicycle variable-speed shifting mechanism with multi-direction releasing operation Download PDFInfo
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- CN202449168U CN202449168U CN2012200506240U CN201220050624U CN202449168U CN 202449168 U CN202449168 U CN 202449168U CN 2012200506240 U CN2012200506240 U CN 2012200506240U CN 201220050624 U CN201220050624 U CN 201220050624U CN 202449168 U CN202449168 U CN 202449168U
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- driving lever
- ratchet
- tensioning
- pivot
- fan
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Abstract
The utility model provides a bicycle variable-speed shifting mechanism with multi-direction releasing operation. A fan-shaped groove is arranged on a positioning plate; inner teeth which are distributed in a fan shape and staggered from outer teeth on the outer circumference of the positioning plate are arranged in the fan-shaped groove; a pivot is arranged on a lower bearing board; a releasing dialing lever, a pawl unit and a pawl unit resetting tension spring are arranged on the pivot; the releasing dialing lever is sleeved outside the pivot by means of passing through a large fan-shaped hole and the pawl unit is sleeved outside the pivot by means of passing through a round hole; a pin shaft is arranged above the pawl unit, and a small fan-shaped hole in the releasing dialing lever slides around the pin shaft; an outer pawl and an inner pawl which are engaged with the outer teeth and the inner teeth on the positioning plate in a staggered manner can be respectively arranged below the pawl unit; and a handle convenient to operate is arranged at the tail of the releasing shifting rod, and a stressing part capable of acting on a lower bearing board is arranged at the front part of the releasing shifting rod. The bicycle variable-speed shifting mechanism provided by the utility model has the advantages of being relatively in reasonable structure, stable in use, low in production cost and low in mounting cost; and the number, the mounting space and the entire weight of parts can be greatly reduced.
Description
[technical field]
The utility model relates to a kind of bicycle gearshift, and more special, the utility model relates to a kind of bicycle gearshift with multi-aspect release function.
[background technology]
Poke-rod type bicycle shift system comprises that mainly is fixed on a bicycle handle bar set collar on hand; A spool that is used to roll or discharge the speed change backguy; A tensioning driving lever that is used to roll (tension) speed change backguy operation, a release driving lever that is used for discharging (unclamping) speed change backguy operation.For this type bicycle shift control mechanism, a part of mechanism adopts to pull the tensioning driving lever or discharge driving lever to same direction and realizes speed changing function, and a part of mechanism adopts to pull the tensioning driving lever or discharge driving lever to different directions to realize speed changing function.
But for some bicyclists; Hope can have the speed-changing mechanism that possesses two kinds of operating mode simultaneously: both can promote the tensioning driving lever or discharge driving lever to reach speed changing function to same direction with thumb; Can promote the tensioning driving lever with thumb again, discharge driving lever with the forefinger pulling and reach speed changing function.The patent No. is US7, and 762,157 US Pat has disclosed the gear shift mechanism with this function, and the bicyclist can use thumb to promote the tensioning driving lever or discharge the driving lever speed change to same direction; Simultaneously also can promote the tensioning driving lever, spur the release driving lever round about with forefinger and reach identical speed changing function with thumb.In this mechanism, the release driving lever can move to two relative directions and reach identical speed changing function.For realizing this function, this releasing mechanism has been equipped an input component, an executive item that cooperates with it, dowel disc and and the dowel disc maintenance ingear ratchet unit with sector.Input component is fixed on the bearing plate and around pivot through a pivot and rotates to different directions; Executive item is fixed on the bearing plate through another pivot and around this pivoted, the ratchet unit is fixed on the bearing plate through another pivot and centers on this pivoted.When the user when different directions is pulled the handle on the input component; Input component compressing executive item rotates to same direction; Executive item is compressing ratchet unit rotational when rotating; Make the engagement of the sector on ratchet unit and the dowel disc produce the moment disengaging, dowel disc also can rotate the function that realizes speed change accordingly under the effect of spring force.For realizing above-mentioned functions, needing three pivots could realize, wherein input component need center on different pivoted with executive item; Between each pivot enough spaces must be arranged, need many parts, for example input component simultaneously; Executive item, pivot, ratchet unit etc.The parts that so many size and dimensions will be coordinated each other not only require quite high productive costs, cost of installation and corresponding installing space in case of transmission; And so the technological requirement of multi-part when producing and assembling require high, when speed-change process, occur because of parts easily between exercise not harmony caused having realized not speed change, bring the maintenance probability to increase.For above-mentioned reasons, need a kind of bicycle shift gearshift new mechanism that can overcome above-mentioned technical matters.
[utility model content]
The purpose of the utility model is the deficiency that is to overcome prior art; A kind of more reasonable structure is provided, has used stable, productive costs and the low bicycle shift gearshift with multi-aspect releasing operation of cost of installation, it has significantly reduced number of components and parts and installing space and single-piece weight.
In order to solve the technical matters of above-mentioned existence, the utility model adopts following technical proposals:
A kind of bicycle shift gearshift with multi-aspect releasing operation comprises:
Trasmission shifting system is installed to the set collar on the bicycle;
Be installed to the upper and lower back plate on the set collar, between upper and lower back plate, be connected with main shaft;
Black box of forming by steel wire spool, dowel disc, tensioning ratchet and the assembly reduction torsion spring that black box is resetted; Described assembly reduction torsion spring and black box pass the lining that is enclosed within the main shaft middle part and are located between the upper and lower back plate, on the excircle of dowel disc and tensioning ratchet, are respectively equipped with the external tooth of fan-shaped distribution;
Tensioning driving lever and the driving lever torsion spring that driving lever is resetted, described tensioning driving lever is through being installed in the lower support plate bottom with main shaft bonded assembly spindle nut;
Be located at the tensioning ratchet that the external tooth with on the tensioning ratchet on the pawl axis that is positioned at tensioning driving lever head is complementary;
It is characterized in that:
On dowel disc, be provided with fan groove, in this fan groove, be provided with the dowel disc periphery on the internal tooth that is fan-shaped distribution that staggers mutually of external tooth;
On lower support plate, be provided with pivot, on this pivot, be provided with release driving lever, ratchet unit and ratchet unit reduction torsion spring, described release driving lever passes through circle hole sleeve outside pivot through big scallop, ratchet unit; Be provided with above the said ratchet unit the little scallop that supply to discharge on the driving lever around the bearing pin of slip, the below be provided with can be respectively with dowel disc on outer, internal tooth interlace that ingear is outer, interior ratchet; The afterbody of described release driving lever is for ease of the handle of operation, and the front portion is the force section that can act on lower support plate.
In improvement project, on said lower support plate, be provided with and supply to discharge the anterior effect of driving lever bossing above that above-mentioned bicycle shift gearshift with multi-aspect releasing operation.
In the improvement project to above-mentioned bicycle shift gearshift with multi-aspect releasing operation, the bearing pin above said ratchet unit is an axle type or a boss class.
Compared with prior art; 1), because it is to utilize same release driving lever and the ratchet unit on the pivot to operate to move back the shelves action beneficial effect of the utility model is:; Then by on the ratchet unit outer, internal tooth is outer with dowel disc, be fan-shaped distribution on the inner periphery and outer, the interior ratchet that staggers mutually between engagement accordingly and jump out of mesh realize that dowel disc rotates back release backguy and moves back grade speed change; Therefore only need be as the release driving lever of input component; And saved executive item and two other pivot, that is to say and save three parts that this can make whole speed-changing mechanism design small and exquisitely; Save installing space and alleviate the overall weight of change-speed box, thereby reduce production costs and cost of installation; 2), meanwhile, saved grade maneuverability pattern that moves back behind two pivots, bring action in speed-change process coordinate more with flexibly, greatly reduce the maintenance probability, so the structure of the utility model is more reasonable and compact, use more stable.
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further to describe in detail:
[description of drawings]
Fig. 1 is the schematic perspective view of the utility model embodiment;
Fig. 2 is the assembling scheme drawing of the utility model embodiment;
Fig. 3 is ratchet unit and the engagement figure (by bottom looked up) of dowel disc under normal condition of the utility model embodiment;
Fig. 4 is the schematic perspective view of the release driving lever of the utility model embodiment;
Fig. 5 is the schematic perspective view of the ratchet unit of the utility model embodiment;
Fig. 6 shows when discharging driving lever when cw (first) direction is moved, and discharges the movement relation between driving lever and ratchet unit and the dowel disc;
Fig. 7 shows when discharging driving lever when conter clockwise (second) direction is moved, and discharges the movement relation between driving lever and ratchet unit and the dowel disc.
[specific embodiment]
The utility model is a kind of bicycle shift gearshift with multi-aspect releasing operation, and is as shown in Figure 1, comprising:
Trasmission shifting system is installed to bicycle handle bar set collar 3 on hand;
Be installed to the upper and lower back plate 2,14 on the set collar 3 through screw 6, at upper and lower back plate 2, be connected with main shaft 1 between 14;
Can not be fitted together the black box of being formed mutually rotationally by steel wire spool 8, dowel disc 7 and tensioning ratchet 12; And the assembly reduction torsion spring 4 that black box is resetted; Described assembly reduction torsion spring 4 and black box pass the lining 5 that is enclosed within main shaft 1 middle part be located at upper and lower back plate 2, between 14; Black box rotates around lining 5, on the excircle of dowel disc 7 and tensioning ratchet 12, is respectively equipped with external tooth 7a, the 12a of fan-shaped distribution, and the external tooth 7a of dowel disc 7 and the external tooth 12a of tensioning ratchet 12 are that the center of circle is distributed on the semicircle of diverse location with the main shaft; In Fig. 1, it roughly is distributed on the upper and lower semicircle;
Tensioning driving lever 18 and the driving lever torsion spring 16 that driving lever is resetted, described tensioning driving lever 18 make tensioning driving lever 18 rotate around spindle nut 19 through being installed in lower support plate 14 bottoms with main shaft 1 bonded assembly spindle nut 19;
Be located at tensioning ratchet 10 and ratchet reduction torsion spring (not shown) that the external tooth 12a with on the tensioning ratchet 12 on the pawl axis 20 that is positioned at tensioning driving lever 18 heads is complementary; When promoting tensioning driving lever 18, the user accomplishes when performing operation; Be installed in the external tooth 12a engagement on tensioning ratchet 10 and the tensioning ratchet 12 on the tensioning driving lever 18; Promote tensioning ratchet 12 then around main shaft 1 rotation; Because tensioning ratchet 12, spool 8 are to be mounted to a black box that can not rotate mutually with dowel disc 7, therefore when 12 rotations of tensioning ratchet, also drive spool 8 accordingly and rotate around main shaft with dowel disc 7 thereupon; Thereby the speed change steel wire on the spool 8 is tightened up, reach the function of speed change.For the stretching device in the gear shift mechanism is publicly-owned technology, is conspicuous for a person skilled in the art, and this paper does not do too much description.
And in the utility model, on dowel disc 7, be provided with fan groove 7c, in this fan groove 7c, be provided with dowel disc 7 peripheries on the internal tooth 7b that is fan-shaped distribution that staggers mutually of external tooth 7a;
On lower support plate 14, be provided with pivot 17, on this pivot 17, be provided with release driving lever 9, ratchet unit 13 and ratchet unit reduction torsion spring 15, described release driving lever 9 is enclosed within outside the pivot 17 through circular hole 13c through big scallop 9e, ratchet unit 13; Be provided with above the said ratchet unit 13 the little scallop 9d that supply to discharge on the driving lever 9 around the bearing pin 11 of slip; The below be provided with can be respectively with dowel disc 7 on outer, internal tooth 7a, 7b interlace that ingear is outer, interior ratchet 13a, 13b, wherein outer ratchet 13a the effect of ratchet unit reduction torsion spring 15 under with dowel disc 7 on external tooth 7a keep meshing for a long time.When dowel disc 7 under the drive of tensioning ratchet 10 during around main shaft 1 rotation; Just said performing when operating; Outer ratchet 13a on the ratchet unit 13 and the external tooth 7a of a certain appointment on the dowel disc 7 engagement also remain on corresponding position; Reach the gear that the operator needs, outside under the engagement of ratchet 13a and the external tooth 7a of excircle, prevention dowel disc 7 is in spring force effect turning down simultaneously.As shown in Figure 4; The afterbody of described release driving lever 9 is for ease of the handle 9a of operation, and the front portion is the force section 9f that can act on the lower support plate 14, in the present embodiment; As shown in Figure 6, on said lower support plate 14, be provided with and supply to discharge driving lever 9 anterior effect bossing 14a above that.
In use, for accomplishing the multidirectional releasing operation of gear shift mechanism, do detailed explanation through Fig. 6 and Fig. 7 below.In Fig. 6; When pulling, the operator discharges driving lever 9 when the cw shown in the arrow (first) direction is moved; A side 9c who discharges big scallop 9e on the driving lever 9 partly rotates around pivot 17; Discharge bearing pin 11 on the little scallop 9d compressing ratchet unit on the driving lever simultaneously to a lateral movement; Thereby drive ratchet unit 13 also around pivot 17 synchronously to a lateral movement, the external tooth 7a jump out of mesh under the effect of power on the excircle on outer ratchet 13a on the ratchet unit and the dowel disc at this moment, but another the relative interior ratchet 13b on the ratchet unit then with the dowel disc inner periphery on internal tooth 7b along with the engagement that is moved into of ratchet unit.Because the internal tooth 7b in the dowel disc on row's circumference staggers with the layout that effluxes the external tooth 7a on the circumference each other; Promptly and when interior ratchet 13b and internal tooth 7b engagement when outer ratchet 13a and external tooth 7a jump out of mesh; The cusp of outer ratchet 13a just leaves and the vertex of the external tooth 7a that jumps over, when the operator unclamps when being applied to the power that discharges on the driving lever, under the spring force effect of ratchet unit reduction torsion spring 15; Discharge driving lever and can get back to the normal position; The power that imposes on ratchet unit upper pin 11 through little scallop 9d on the release driving lever also disappears thereupon, under the twisting force of ratchet unit reduction torsion spring 15, and interior ratchet 13b on the ratchet unit 13 and the internal tooth 7b de-mesh on the dowel disc; And outer ratchet 13a is owing to jump over and leave the vertex of last engagement external tooth 7a; Under 15 effects of ratchet unit reduction torsion spring, the next external tooth 7a that effluxes circumference on outer ratchet 13a and the dowel disc gets into engagement and keeps dowel disc in corresponding position, and accomplishing first direction is that clws moves back the shelves operation.
In Fig. 7; When using the operator to press shown in the arrow when conter clockwise (second) direction opposite with first direction promotes to discharge driving lever; Force section 9f elder generation on the release driving lever 9 contacts with the bossing 14a on the lower support plate 14; Stop to discharge the further rotation of driving lever around pivot 17, at this moment under the effect of operator's thrust, the path of motion that discharges driving lever becomes along big scallop 9e slides around pivot 17; When the release driving lever slides into the opposite side 9b place of big scallop; Discharge driving lever itself also accordingly to a side shifting distance, therefore the bearing pin 11 on the less fan hole 9d compressing ratchet unit 13 also moves thereupon on the driving lever by discharging accordingly, thus drive the ratchet unit around pivot 17 simultaneously to a lateral movement; At this moment the outer ratchet 13a of ratchet unit and the external tooth 7a jump out of mesh under the effect of power on the dowel disc excircle, but another the relative interior ratchet 13b on the ratchet unit then with dowel disc fan groove 7c on internal tooth 7b along with the engagement that is moved into of ratchet unit.Because internal tooth 7b on the dowel disc and the layout of external tooth 7a stagger each other; Promptly and when interior ratchet 13b and internal tooth 7b engagement when outer ratchet 13a and external tooth 7a jump out of mesh; The cusp of outer ratchet 13a just leaves and the vertex of the external tooth 7a that jumps over, when the operator unclamps when being applied to the power that discharges on the driving lever, under the effect of spring force; Discharge driving lever and can get back to the normal position; The power that imposes on ratchet unit upper pin through the little scallop 9d on the release driving lever also disappears thereupon, under the twisting force of ratchet unit reduction torsion spring 15, and interior ratchet 13b on the ratchet unit and the internal tooth 7b de-mesh on the dowel disc; And outer ratchet 13a is owing to jump over and leave the vertex of last engagement external tooth 7a; Under 15 effects of ratchet unit reduction torsion spring, the next external tooth 7a that effluxes circumferential teeth on outer ratchet 13a and the dowel disc gets into engagement and keeps dowel disc in corresponding position, and accomplishing second direction is that C.C.W. moves back the shelves operation.
From on can find out that the user can be according to oneself use habit with the thumb cw or handle to discharge driving lever 9 with the forefinger conter clockwise and move back a grade speed change, so it has multi-aspect releasing operation speed changing function.
In sum; The utility model is to utilize same release driving lever 9 on the pivot 17 and ratchet unit 13 to operate to move back the shelves action; Realizing that by being engagement accordingly and jump out of mesh between fan-shaped distribution and outer, the internal tooth 7a that staggers mutually, the 7b on outer, the internal tooth 13a on the ratchet unit 13,13b and the dowel disc 7 dowel disc rotates the back and discharges backguy and move back grade speed change then, need be US7 and saved the patent No. as the release driving lever 9 of input component; 762; Necessary executive item and two other pivot in 157 the US Pat that is to say and save three parts that this can make whole speed-changing mechanism design small and exquisitely; Save installing space and alleviate the overall weight of change-speed box, thereby reduce production costs and cost of installation; Meanwhile, saved grade maneuverability pattern that moves back behind two pivots, bring action in speed-change process coordinate more with flexibly, greatly reduce the maintenance probability, so the structure of the utility model is more reasonable and compact, use more stable.
In the present embodiment, as shown in Figure 1, the bearing pin 11 above said ratchet unit 13 is to be the circular shaft class, and certainly, it also can be the boss class.
Although specified the utility model with reference to top embodiment; But it will be apparent to one skilled in the art that through the disclosure; And do not break away under the situation of principle and spirit of the utility model that described claim limits, can make various variations or modification to the utility model.Therefore, the detailed description of disclosure embodiment only is used for explaining, rather than is used for limiting the utility model, but is defined by the subject-matter of the claims the scope of protection.
Claims (3)
1. bicycle shift gearshift with multi-aspect releasing operation comprises:
Trasmission shifting system is installed to the set collar (3) on the bicycle;
Be installed to the upper and lower back plate (2,14) on the set collar (3), between upper and lower back plate (2,14), be connected with main shaft (1);
Black box of forming by steel wire spool (8), dowel disc (7), tensioning ratchet (12) and the assembly reduction torsion spring (4) that black box is resetted; Described assembly reduction torsion spring (4) and black box are located between the upper and lower back plate (2,14) after passing main shaft (1), on the excircle of dowel disc (7) and tensioning ratchet (12), are respectively equipped with the external tooth (7a, 12a) of fan-shaped distribution;
Tensioning driving lever (18) and the driving lever torsion spring (16) that driving lever is resetted, described tensioning driving lever (18) is through being installed in lower support plate (14) bottom with main shaft (1) bonded assembly spindle nut (19);
Be located at the tensioning ratchet (10) that the external tooth (12a) with on the tensioning ratchet (12) on the pawl axis (20) that is positioned at tensioning driving lever (18) head is complementary;
It is characterized in that:
On dowel disc (7), be provided with fan groove (7c), in this fan groove (7c), be provided with dowel disc (7) periphery on the internal tooth that is fan-shaped distribution (7b) that staggers mutually of external tooth (7a);
On lower support plate (14), be provided with pivot (17); On this pivot (17), be provided with release driving lever (9), ratchet unit (13) and ratchet unit reduction torsion spring (15), described release driving lever (9) is enclosed within outside the pivot (17) through circular hole (13c) through big scallop (9e), ratchet unit (13); Be provided with in the top of said ratchet unit (13) the little scallop (9d) that supply to discharge on the driving lever (9) around the bearing pin (11) of slip, the below be provided with can be respectively with dowel disc (7) on outer, internal tooth (7a, 7b) interlace that ingear is outer, interior ratchet (13a, 13b); The afterbody of described release driving lever (9) is for ease of the handle (9a) of operation, and the front portion is the force section (9f) that can act on lower support plate (14).
2. the bicycle shift gearshift with multi-aspect releasing operation according to claim 1 is characterized in that: on said lower support plate (14), be provided with and supply to discharge the anterior effect of driving lever (9) bossing (14a) above that.
3. the bicycle shift gearshift with multi-aspect releasing operation according to claim 1 and 2 is characterized in that: the bearing pin (11) in top, said ratchet unit (13) is axle class or boss class.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200506240U CN202449168U (en) | 2012-02-17 | 2012-02-17 | Bicycle variable-speed shifting mechanism with multi-direction releasing operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200506240U CN202449168U (en) | 2012-02-17 | 2012-02-17 | Bicycle variable-speed shifting mechanism with multi-direction releasing operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202449168U true CN202449168U (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200506240U Withdrawn - After Issue CN202449168U (en) | 2012-02-17 | 2012-02-17 | Bicycle variable-speed shifting mechanism with multi-direction releasing operation |
Country Status (1)
| Country | Link |
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| CN (1) | CN202449168U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102582780A (en) * | 2012-02-17 | 2012-07-18 | 中山新宝五金弹簧有限公司 | Bicycle variable speed gear-shifting mechanism with multidirectional release operation |
| CN104691699A (en) * | 2015-03-12 | 2015-06-10 | 太仓明佳塑料制品有限公司 | Manual-moving type variable speed controller of bicycle |
| CN108068990A (en) * | 2016-11-14 | 2018-05-25 | 株式会社岛野 | Bicycle part operating device |
| CN109552549A (en) * | 2018-12-25 | 2019-04-02 | 珠海迪瑞乐科技有限公司 | Bicycle selector and bicycle |
| TWI739981B (en) * | 2017-03-06 | 2021-09-21 | 日商島野股份有限公司 | Bicycle operating device |
-
2012
- 2012-02-17 CN CN2012200506240U patent/CN202449168U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102582780A (en) * | 2012-02-17 | 2012-07-18 | 中山新宝五金弹簧有限公司 | Bicycle variable speed gear-shifting mechanism with multidirectional release operation |
| CN104691699A (en) * | 2015-03-12 | 2015-06-10 | 太仓明佳塑料制品有限公司 | Manual-moving type variable speed controller of bicycle |
| CN108068990A (en) * | 2016-11-14 | 2018-05-25 | 株式会社岛野 | Bicycle part operating device |
| CN108068990B (en) * | 2016-11-14 | 2020-01-31 | 株式会社岛野 | Bicycle component operating device |
| TWI718346B (en) * | 2016-11-14 | 2021-02-11 | 日商島野股份有限公司 | Bicycle component operating device |
| TWI739981B (en) * | 2017-03-06 | 2021-09-21 | 日商島野股份有限公司 | Bicycle operating device |
| CN109552549A (en) * | 2018-12-25 | 2019-04-02 | 珠海迪瑞乐科技有限公司 | Bicycle selector and bicycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120926 Effective date of abandoning: 20130424 |
|
| RGAV | Abandon patent right to avoid regrant |