CN2769169Y - Multi-tooth variable speed flywheel for bicycle - Google Patents
Multi-tooth variable speed flywheel for bicycle Download PDFInfo
- Publication number
- CN2769169Y CN2769169Y CN 03236175 CN03236175U CN2769169Y CN 2769169 Y CN2769169 Y CN 2769169Y CN 03236175 CN03236175 CN 03236175 CN 03236175 U CN03236175 U CN 03236175U CN 2769169 Y CN2769169 Y CN 2769169Y
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- CN
- China
- Prior art keywords
- outer shaft
- tooth
- gear piece
- shaft sleeve
- thread
- 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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Abstract
A multi-tooth variable speed flywheel for a bicycle is composed of a staged inner shaft sleeve, a staged outer shaft sleeve, roller balls between the inner and the outer shaft sleeves, a back stop mechanism of the outer shaft sleeve, and a plurality of different-diameter tooth sheets arranged on the outer shaft sleeve through a distance sleeve range line, wherein the steps of the staged outer shaft sleeve are respectively provided with spline grooves; one end of the outer shaft sleeve is provided with spline grooves and a thread section. Shaft holes of the tooth sheets are provided with integrally manufactured splines. The tooth sheets are arranged on the outer shaft sleeve and tightly locked and fixed by female locks fitted with one end of the outer shaft sleeve via threads. The multi-tooth variable speed flywheel has the advantages of few misplacement and loose phenomena, reliable work and long service life. The tooth number of the smallest tooth-sheets can be further decreased to enlarge the speed changing range of bicycles.
Description
Technical field
The utility model relates to a kind of bicycle use multi-tooth-slice type variable-speed flywheel.
Background technology
Existing by the inside and outside axle sleeve of staged, the sleeve end that is positioned at the staged axle sleeve of the bicycle multi-tooth-slice type variable-speed flywheel that the ball a plurality of gear pieces different with the diameter on being loaded on outer shaft of inside and outside shaft room constitute is shaped on outside thread, be shaped on each stage of axle sleeve and spend strong groove.The gear piece axis hole of diameter minimum is shaped on negative thread, and the axis hole of all the other gear pieces has spline made in one piece.Each gear piece is loaded on respectively on each stage of outer shaft, and gear piece and outer shaft end screw thread fit that each gear piece axis hole spline crouches in the axle sleeve spline by the diameter minimum equidistantly are locked each gear piece on outer shaft by spacer.Be subjected to twisting force repeatedly at the medium and small gear piece of bicycle use, when its suffered torsion is big, its spacing of further screwing fastening, little gear piece and adjacent gear piece is reduced and produce chain, take turns mutual interference, not only influence the normal operation of flywheel, and chain, wheel are damaged.Little gear piece misplaces because of screwing when the degree that screws is excessive, influences the normal use of the speed changing function and the flywheel of flywheel.When being subjected to big twisting force during the medium and small working gear of the process of particularly driving a vehicle the dropout phenomenon takes place easily and make flywheel loose, train operation accident very easily takes place.
Summary of the invention
The purpose of this utility model is improved existing bicycle use multi-tooth-slice type variable-speed flywheel, provide a kind of gear piece be difficult for misplacing, loose, speed changing function and use are reliably guaranteed, the bicycle use multi-tooth-slice type variable-speed flywheel of long service life.
The bicycle use multi-tooth-slice type variable-speed flywheel that the utility model provides is by the inside and outside axle sleeve of staged, is loaded on each stage of staged outer shaft of the multi-tooth-slice type variable-speed flywheel that the ball bearing of main shaft of inside and outside shaft room and the different gear piece of a plurality of diameters that equidistantly is loaded on by spacer on the outer shaft constitute and is shaped on spline, the outer shaft end is shaped on spline and thread segment, and the axis hole of each gear piece of flywheel has spline made in one piece.Each gear piece is loaded on the outer shaft and is locked by locknut and outer shaft end screw thread fit.
For the reliability of the multi-tooth-slice type variable-speed flywheel speed changing function that guarantees different specification size and the normal use of flywheel, a kind of structural shape of locknut and overcoat end screw thread fit is that the thread segment of outer shaft end is a negative thread, and locknut is an outside thread.
The another kind of structural shape of locknut and sleeve end screw thread fit is an outside thread for the outer shaft end, and locknut is a negative thread.
To move back button in the driving use loosening for the locknut after preventing to lock, the pressure of minimum gear piece of diameter and locknut touch be suppressed with on the face anti-skidding stupefied.
The bicycle use multi-tooth-slice type variable-speed flywheel that the utility model provides has been eliminated many adverse effects that existing multiple tooth each gear piece of formula gear shift flywheel is locked on axle sleeve to be produced by minimum gear piece of diameter and sleeve end screw thread fit, thereby the flywheel gear piece is difficult for misplacing, loose phenomenon, the flywheel reliable operation, long service life.The minimum gear piece number of teeth can further reduce, and enlarges the speed range of bicycle.
Description of drawings
Fig. 1 is shaped on the constructional drawing of the bicycle use multi-tooth-slice type variable-speed flywheel of negative thread for the outer shaft end.
Fig. 2 is the birds-eye view of Fig. 1.
Fig. 3 is the appearance assumption diagram of the minimum gear piece of diameter.
Fig. 4 is an anti-skidding stupefied partial enlarged drawing shown in Figure 3.
Fig. 5 is shaped on the constructional drawing of externally threaded bicycle use multi-tooth-slice type variable-speed flywheel for the outer shaft end.
Fig. 6 is the birds-eye view of Fig. 5.
Fig. 7 is for being shaped on externally threaded locknut appearance assumption diagram.
Fig. 8 is the locknut appearance assumption diagram that is shaped on negative thread.
The specific embodiment
Accompanying drawing is embodiment of the present utility model, describes in detail of the present utility model below in conjunction with accompanying drawing
The specific embodiment.
As Fig. 1～shown in Figure 4, the bicycle use multi-tooth-slice type variable-speed flywheel that the outer shaft end is shaped on negative thread is shaped on spline by the inside and outside axle sleeve of staged (8), (6), the axle bumper (1) that is loaded on inside and outside shaft room, ball (3), (7), back-stop mechanism (9), each stage of outer shaft of equidistantly being loaded on the bicycle use multi-tooth-slice type variable-speed flywheel that the different gear piece (4) of multi-disc diameter on the outer shaft constitutes by spacer (5), and the outer shaft end is shaped on spline and internal thread segment.Each gear piece axis hole has spend strong (11) made in one piece, and the fastening pressure of the minimum gear piece of diameter is touched and is shaped on anti-skidding stupefied (10) on the face.In the keyway of gear piece is loaded on the outer shaft, the gear piece spline crouches axle sleeve, each gear piece is locked by being shaped on externally threaded locknut (2).As shown in Figure 7, for preventing that locknut from moving back button and becoming flexible, the fastening pressure of locknut is touched and is shaped on the face and anti-skidding stupefied match anti-skidding stupefied of minimum gear piece, and for the ease of the loading, unloading of locknut, the locknut endoporus is shaped on the wrench bayonet socket.
As Fig. 5～shown in Figure 6, the outer shaft end is shaped on externally threaded bicycle use multi-tooth-slice type variable-speed flywheel and is shaped on spline by the inside and outside axle sleeve of staged (19), (17), the axle bumper (12) that is loaded on inside and outside shaft room, ball (14), (18), back-stop mechanism, each stage of outer shaft of equidistantly being loaded on the bicycle use multi-tooth-slice type variable-speed flywheel that the different gear piece (15) of multi-disc diameter on the outer shaft constitutes by spacer (16), and the outer shaft end is shaped on spline and external thread section.Each gear piece axis hole have made in one piece spend strong, the fastening pressure of the minimum gear piece of diameter touch be shaped on the face anti-skidding stupefied.In the keyway of gear piece is loaded on the outer shaft, the gear piece spline crouches axle sleeve, each gear piece is locked by the locknut that is shaped on negative thread (13).As shown in Figure 8, for preventing that locknut from moving back button and becoming flexible, the fastening pressure of locknut is touched and is shaped on the face and anti-skidding stupefied match anti-skidding stupefied of minimum gear piece, and for the ease of the loading, unloading of locknut, the locknut outer rim is shaped on the wrench bayonet socket.
Claims (4)
1, a kind of bicycle use multi-tooth-slice type variable-speed flywheel be by staged have internal axle sleeve, the outer shaft of connecting thread, the ball and the outer shaft back-stop mechanism that are loaded on inside and outside shaft room, axle bumper, the different gear piece of a plurality of diameters that is loaded on the outer shaft by the spacer range line constitutes, be shaped on spline on each stage of staged outer shaft, it is characterized in that the outer shaft end is shaped on spline and thread segment, the axis hole of each gear piece has spline made in one piece.Each gear piece is loaded on the outer shaft, the spline of each gear piece crouches is locked by locknut and outer shaft end screw thread fit in the cooresponding outer shaft spline.
2, according to the described bicycle use multi-tooth-slice type variable-speed flywheel of claim 1, it is characterized in that said outer shaft end thread segment is a negative thread, said locknut screw thread is an outside thread.
3, according to the described bicycle use multi-tooth-slice type variable-speed flywheel of claim 1, it is characterized in that said outer shaft end thread segment is an outside thread, said locknut screw thread is a negative thread.
4, according to the described bicycle use multi-tooth-slice type variable-speed flywheel of claim 1, the pressure that it is characterized in that minimum gear piece of diameter and locknut touch be suppressed with on the face anti-skidding stupefied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03236175 CN2769169Y (en) | 2003-01-20 | 2003-01-20 | Multi-tooth variable speed flywheel for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03236175 CN2769169Y (en) | 2003-01-20 | 2003-01-20 | Multi-tooth variable speed flywheel for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2769169Y true CN2769169Y (en) | 2006-04-05 |
Family
ID=36690249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03236175 Expired - Fee Related CN2769169Y (en) | 2003-01-20 | 2003-01-20 | Multi-tooth variable speed flywheel for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2769169Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI396648B (en) * | 2009-06-19 | 2013-05-21 | Giant Electric Vehicle Kunshan Co Ltd | Method and mechanism for resistant a bicycle chain jam |
| TWI461330B (en) * | 2009-11-30 | 2014-11-21 | Shimano Kk | Bicycle sprocket support assembly |
| CN107585256A (en) * | 2016-07-07 | 2018-01-16 | 株式会社岛野 | Bicycle rear sprocket assembly and bicycle rear sprocket |
| CN108974233A (en) * | 2017-05-30 | 2018-12-11 | 株式会社岛野 | Bicycle rear sprocket assembly and bicycle drivetrain |
-
2003
- 2003-01-20 CN CN 03236175 patent/CN2769169Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI396648B (en) * | 2009-06-19 | 2013-05-21 | Giant Electric Vehicle Kunshan Co Ltd | Method and mechanism for resistant a bicycle chain jam |
| TWI461330B (en) * | 2009-11-30 | 2014-11-21 | Shimano Kk | Bicycle sprocket support assembly |
| US9193416B2 (en) | 2009-11-30 | 2015-11-24 | Shimano Inc. | Bicycle sprocket support assembly |
| CN107585256A (en) * | 2016-07-07 | 2018-01-16 | 株式会社岛野 | Bicycle rear sprocket assembly and bicycle rear sprocket |
| CN107585256B (en) * | 2016-07-07 | 2019-09-06 | 株式会社岛野 | Bicycle rear sprocket assembly and bicycle rear sprocket |
| CN108974233A (en) * | 2017-05-30 | 2018-12-11 | 株式会社岛野 | Bicycle rear sprocket assembly and bicycle drivetrain |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060405 Termination date: 20100220 |