CN2222120Y - Disc type speed-changing device for bicycle - Google Patents
Disc type speed-changing device for bicycle Download PDFInfo
- Publication number
- CN2222120Y CN2222120Y CN95200195.0U CN95200195U CN2222120Y CN 2222120 Y CN2222120 Y CN 2222120Y CN 95200195 U CN95200195 U CN 95200195U CN 2222120 Y CN2222120 Y CN 2222120Y
- Authority
- CN
- China
- Prior art keywords
- disk
- spiral yarn
- yarn shaped
- radiation
- bicycle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
- B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
- B62M9/08—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving eccentrically- mounted or elliptically-shaped driving or driven wheel; with expansible driving or driven wheel
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmissions By Endless Flexible Members (AREA)
Abstract
The utility model relates to a disc type speed-changing device for a bicycle, for the conversion of bicycle speed. The utility model is mainly composed of a helix-shaped disc, a ray-shaped disc, toothed blocks of sprocket, pin shafts, hinge brackets and other parts. The utility model is characterized in that gear teeth are arranged on the periphery of the helix-shaped disc, six helix-shaped through hole grooves which are centrosymmetric and equidistant are arranged in the helix-shaped disc, and the rim of the helix-shaped through grooves has cam surface and slots; six equidistant radical through hole grooves are arranged in the ray-shaped disc. The utility model has the advantages of a plurality of speed transforming gears, simple structure, flexible operation, little possibility of malfunction and convenient maintenance.
Description
The utility model relates to a kind of derailleur, especially relates to a kind of later-model bicycle wheel disc change-speed box, is used for the conversion of bicycle speed.
At present, ordinary bicycle acquire speed converting means, but few, the complex structure of most of conversion shelves numbers, easily et out of order, repair also pretty troublesome.
The purpose of this utility model provide a kind of conversion shelves number many, simple in structure, be difficult for et out of order, bicycle wheel disc change-speed box easy to maintenance, to overcome the deficiency of existing derailleur.
The purpose of this utility model is achieved in that it mainly is made up of spiral yarn shaped disk 1, the linear disk 2 of radiation, sprocket tooth piece 3, bearing pin 4, chain holder 5 etc., it is characterized in that: spiral yarn shaped disk 1 periphery is provided with teeth 7, be provided with six center symmetries, equidistant spiral yarn shaped open-work groove 8 in the dish, camming surface 9 and groove 10 are arranged on the edge of spiral yarn shaped open-work groove 8; Be provided with six equidistant radial through holes grooves 6 in linear disk 2 dishes of radiation, respectively there is a circular hole that passes bicycle middle shaft in the centre of spiral yarn shaped disk 1 and the linear disk 2 of radiation, and be sleeved on the axis, spiral yarn shaped disk 1 flexibly connects with axis, and the linear disk 2 of radiation is connected to a fixed with the crank of pedal; Two sprocket tooth pieces 3 and four chain holders 5 by bearing pin 4 respectively symmetry pack in radial through holes groove 6 and the spiral yarn shaped open-work groove 8.Chain holder 5 its tops are the garden arc.Each sprocket tooth piece 3 and chain holder 5 are subjected to the control of radial through holes groove 6 and spiral yarn shaped open-work groove 8 simultaneously, can radially slide easily.Rotate spiral yarn shaped disk 1 and just can make the radius between sprocket tooth piece 3 and chain holder 5 and the center shaft change when linear disk 2 maintains static radiation, promptly applied moment changes, thereby changes the speed of bicycle.
The utility model compared with prior art its speed transformation shelves number many, simple in structure, use flexibly, be difficult for et out of order, easy to maintenance.
Further specify below in conjunction with drawings and Examples.
Fig. 1 is a running condition schematic appearance of the present utility model.
Fig. 2 is a running condition structural representation of the present utility model.
Fig. 3 is a parts assembling scheme drawing of the present utility model.
The scheme drawing that Fig. 4 analyses and observe vertically for the utility model.
Among the figure: 1, spiral yarn shaped disk, 2, the linear disk of radiation, 3, sprocket tooth piece, 4, bearing pin, 5, the chain holder, 6, the radial through holes groove, 7, teeth, 8, spiral yarn shaped open-work groove, 9, camming surface, 10, groove.
The utility model mainly is made up of spiral yarn shaped disk 1, the linear disk 2 of radiation, sprocket tooth piece 3, bearing pin 4, chain holder 5 etc. as can be seen from Figure 1, 2, 3, its structure is: spiral yarn shaped disk 1 periphery is provided with teeth 7, be provided with six center symmetries, equidistant spiral yarn shaped open-work groove 8 in the dish, camming surface 9 and groove 10 are arranged on the edge of spiral yarn shaped open-work groove 8; Be provided with six equidistant radial through holes grooves 6 in linear disk 2 dishes of radiation, respectively there is a circular hole that passes bicycle middle shaft in the centre of spiral yarn shaped disk 1 and the linear disk 2 of radiation, and be sleeved on the axis, spiral yarn shaped disk 1 flexibly connects with axis, and the linear disk 2 of radiation is connected to a fixed with the crank of pedal; Two sprocket tooth pieces 3 and four chain holders 5 by bearing pin 4 respectively symmetry pack in radial through holes groove 6 and the spiral yarn shaped open-work groove 8, each sprocket tooth piece 3 and chain holder 5 are subjected to the control of radial through holes groove 6 and spiral yarn shaped open-work groove 8 simultaneously, can radially slide easily.Rotate spiral yarn shaped disk 1 and just can make the radius between sprocket tooth piece 3 and chain holder 5 and the center shaft change when linear disk 2 maintains static radiation, promptly applied moment changes, thereby changes the speed of bicycle.
During use, when the needs speed change, only need move the controller on the handlebar, by steel wire flexible cord pulling control lever, the control end of control lever contacts with the teeth 7 on spiral yarn shaped disk 1 periphery, and spiral yarn shaped disk 1 can not be rotated, at this moment only need pedal pedal forward or backward, the linear disk of radiation 2 is rotated, can drive two sprocket tooth pieces 3 and four chain holders 5 on camming surface 9, slides and fall in the groove 10 any one block, thereby the speed of change bicycle.The degree of tightness of chain is finished (belonging to prior art) by the tensioned device.When the radius between sprocket tooth piece 3 and chain holder 5 and the center shaft became big, tensioner was to the disk chain; When the radius between sprocket tooth piece 3 and chain holder 5 and the center shaft diminished, chain fluffed, and tensioner tightens up chain.
Claims (2)
1, a kind of bicycle wheel disc change-speed box, it mainly is made up of spiral yarn shaped disk (1), the linear disk of radiation (2), sprocket tooth piece (3), bearing pin (4), chain holder parts such as (5), it is characterized in that: spiral yarn shaped disk (1) periphery is provided with teeth (7), be provided with six center symmetries, equidistant spiral yarn shaped open-work groove (8) in the dish, camming surface (9) and groove (10) are arranged on the edge of spiral yarn shaped open-work groove (8); Be provided with six equidistant radial through holes grooves (6) in the linear disk of radiation (2) dish, respectively there is a circular hole that passes bicycle middle shaft in the centre of spiral yarn shaped disk (1) and the linear disk of radiation (2), and be sleeved on the axis, spiral yarn shaped disk (1) flexibly connects with axis, and the linear disk of radiation (2) is connected to a fixed with the crank of pedal; Two sprocket tooth pieces (3) and four chain holders (5) by bearing pin (4) respectively symmetry pack in radial through holes groove (6) and the spiral yarn shaped open-work groove (8).
2, bicycle wheel disc change-speed box according to claim 1 is characterized in that: its top of chain holder (5) is the garden arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95200195.0U CN2222120Y (en) | 1995-01-09 | 1995-01-09 | Disc type speed-changing device for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95200195.0U CN2222120Y (en) | 1995-01-09 | 1995-01-09 | Disc type speed-changing device for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2222120Y true CN2222120Y (en) | 1996-03-13 |
Family
ID=33854019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95200195.0U Expired - Fee Related CN2222120Y (en) | 1995-01-09 | 1995-01-09 | Disc type speed-changing device for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2222120Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069891A (en) * | 2009-11-23 | 2011-05-25 | 卞焕永 | A transmission shift for bicycle |
| CN103910022A (en) * | 2013-01-08 | 2014-07-09 | 任孝忠 | Bicycle gear speed-change device |
| GB2563456A (en) * | 2017-06-17 | 2018-12-19 | James Jeffs Michael | Evolving sprocket |
-
1995
- 1995-01-09 CN CN95200195.0U patent/CN2222120Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069891A (en) * | 2009-11-23 | 2011-05-25 | 卞焕永 | A transmission shift for bicycle |
| CN103910022A (en) * | 2013-01-08 | 2014-07-09 | 任孝忠 | Bicycle gear speed-change device |
| GB2563456A (en) * | 2017-06-17 | 2018-12-19 | James Jeffs Michael | Evolving sprocket |
| GB2563456B (en) * | 2017-06-17 | 2020-07-29 | James Jeffs Michael | Evolving sprocket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |