CN2163789Y - Cycle transmission - Google Patents
Cycle transmission Download PDFInfo
- Publication number
- CN2163789Y CN2163789Y CN 93223007 CN93223007U CN2163789Y CN 2163789 Y CN2163789 Y CN 2163789Y CN 93223007 CN93223007 CN 93223007 CN 93223007 U CN93223007 U CN 93223007U CN 2163789 Y CN2163789 Y CN 2163789Y
- Authority
- CN
- China
- Prior art keywords
- sheet
- gear
- speed changing
- speed
- utility
- 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
Links
Images
Abstract
The utility model relates to a speed changing device for bicycles. Existing gear sheets are provided with projected gear teeth used as transition gear sheets in speed changing. The utility model achieves the purpose of bigger speed changing with fewer speed changing sheets, and has the advantages of simple structure, low cost big amplitude of speed changing, high efficiency, etc.
Description
The utility model belongs to bicycle assembly parts
In existing bicycle speed-varying unit, 3 speed transmissions are made up of 3 plate gear sheets, and 10 speed, 15 speed transmissions are made up of 5 plate gear sheets.For the gear sheet of 3 speed transmissions, in order to reach the requirement of 10 speed, 15 speed transmissions, as add the diff-H between the big gear wheel sheet, that messenger chain just is difficult for engagement and gets on; Increase the quantity of gear sheet, can make materials many, the cost height; Reduce the quantity of gear sheet, so since the distance between the gear sheet widen and messenger chain be clipped in the middle.Therefore, these methods all are difficult for realizing.
The purpose of this utility model will provide a kind of usefulness former less variable gear sheet exactly, realizes big speed change, the change-speed box voluntarily that the speed change amplitude is big.
The bicycle of the utility model indication becomes device, be meant the variable gear that is used for the bicycle freewheel place, its basic structure is: on the basis of original 3 speed transmissions, i.e. and miniature gears sheet, middle gear sheet and big gear wheel sheet are fixing on the coat, and they are spaced from each other by the packing ring of centre.On the middle gear sheet that relies on miniature gears sheet one side and rely on the big gear wheel sheet of middle gear sheet one side, be fixed with 3 to 8 respectively and protrude teeth, the size of teeth is consistent with the teeth on the gear sheet of place.When speed change, these protrude the effect that teeth are served as the transition gear sheet, do not bear excessive, long strength, thereby save the consumption of gear sheet, reduce the volume of change-speed box, realize the structure of 3 speed transmissions, as the purpose of 10 speed, 15 speed transmissions.Equally, on the gear sheet of 5 composition change-speed boxs, also several protrusion teeth are gone up in design, also can be used as bigger change-speed box.
The utility model adopts this structure, has simple in structurely, and cost is low, characteristics such as efficient height.
Fig. 1 is a sectional side view of the present utility model.
Fig. 2 is the plan sketch of the utility model gear sheet.
Fig. 3 is the another kind of gear sheet of a utility model scheme drawing.
As shown in FIG., being fixed with miniature gears sheet 3, middle gear sheet 5 and big gear wheel sheet 7, centre on overcoat 1 is separated by packing ring 4 and packing ring 6 respectively.Cover is identical in movable interior cover bearing 2(being arranged in the overcoat 1 and having now).On middle gear sheet 5 and big gear wheel sheet 7, stamp out 6 and protrude teeth 8; The protrusion height that protrudes teeth 8 is 2mm, and width is equal to the teeth width on the gear sheet of place.
Claims (2)
1, a kind of bicycle speed-varying unit is made up of interior cover bearing, packing ring, gear sheet, it is characterized in that: on middle gear sheet 5 and big gear wheel sheet 7, punching press has 3 to 6 to protrude teeth 8 respectively.
2, according to the said bicycle speed-varying unit of claim 1, it is characterized in that: the protrusion height that protrudes teeth 8 is 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93223007 CN2163789Y (en) | 1993-08-28 | 1993-08-28 | Cycle transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93223007 CN2163789Y (en) | 1993-08-28 | 1993-08-28 | Cycle transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2163789Y true CN2163789Y (en) | 1994-05-04 |
Family
ID=33801450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93223007 Expired - Fee Related CN2163789Y (en) | 1993-08-28 | 1993-08-28 | Cycle transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2163789Y (en) |
-
1993
- 1993-08-28 CN CN 93223007 patent/CN2163789Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2163789Y (en) | Cycle transmission | |
| CN2589757Y (en) | Stepless gear having multiple rod pendulum type supporting point | |
| CN210003792U (en) | center wheel fixed type automatic gear shifting transmission | |
| CN2151312Y (en) | Inertial aid | |
| CN2179329Y (en) | Bicycle bottom bracket bearing speed variator | |
| CN2589332Y (en) | Automatic shifting variable transmission device for motorcycle | |
| CN2181470Y (en) | Internal and external speed gear for bicycle | |
| CN2450394Y (en) | Petrol engine transmission speed changer for motor tricycle | |
| CN2490364Y (en) | Ring-type planet transmission | |
| CN2245141Y (en) | Stepless variable speed device | |
| CN2167240Y (en) | Mechanical gearing | |
| CN2359207Y (en) | Bicycle wheel disc | |
| CN2294354Y (en) | Continuously-meshing gear internally teethed clutch speed variator | |
| CN2193948Y (en) | Integral variable-speed chain wheel | |
| CN2190610Y (en) | Bicycle chainless shaft speed changer | |
| CN2174416Y (en) | Ordinary secndary driving variable-speed bicycle | |
| CN2498067Y (en) | Gear and gear bicycle | |
| CN85204062U (en) | Automatic stepless speed-changing device for bicycle | |
| CN2535263Y (en) | Light-duty agriculture vehice speed transmission | |
| CN2665460Y (en) | Novel mechanical speed regulation apparatus | |
| CN2216027Y (en) | Float supported chain cover | |
| CN2330540Y (en) | Automobile speed changer with over top-gear | |
| CN2411203Y (en) | Internal ratchet combined gear wheel | |
| CN2172374Y (en) | Directional transmission | |
| CN2186826Y (en) | Bicycle boosting gasoline engine power gear |
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 |