CN2739088Y - Unloading driving plate for automatic speed variator of bicycle - Google Patents
Unloading driving plate for automatic speed variator of bicycle Download PDFInfo
- Publication number
- CN2739088Y CN2739088Y CN 200420070088 CN200420070088U CN2739088Y CN 2739088 Y CN2739088 Y CN 2739088Y CN 200420070088 CN200420070088 CN 200420070088 CN 200420070088 U CN200420070088 U CN 200420070088U CN 2739088 Y CN2739088 Y CN 2739088Y
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- CN
- China
- Prior art keywords
- driving plate
- bicycle
- control
- centrifugal
- dial
- 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
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000003756 stirring Methods 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The unloading driving plate of the automatic speed changer of the bicycle is in a circular disc shape, the outer diameter of the unloading driving plate is equal to that of the control driving plate, one end face of the unloading driving plate is a plane matched with the circular plane of the control driving plate, and eight radial grooves capable of being inserted into the centrifugal block driving arms are uniformly distributed on the end face of the other circular ring. The utility model discloses install between the stirring arm of centrifugal piece and control driver plate, hug closely continuously with the ring shape plane of control driver plate, the stirring arm of centrifugal piece inserts in the radial slot of another terminal surface. When the bicycle runs, the shifting arm of the centrifugal block drives the unloading driving plate to rotate, and when the bicycle changes speed, the unloading driving plate pushes the control driving plate to slide along the axial direction of the bicycle shaft, and the gear cross driving plate is driven to slide through the connecting rod, so that the speed change is realized. The utility model discloses drive synchronous rotation by dialling the movable arm, and control the driver plate between be the face contact and hug closely continuously, be the face contact with the control driver plate, the specific pressure is less, and frictional force is less during the transmission, and difficult wearing and tearing improve the variable speed performance of derailleur.
Description
Technical field
The utility model relates to a kind of automatic speed-changing device for bicycle off-load dial.
Background technology
In the prior art, Chinese patent ZL 02 2 09850.X, automatic speed-changing device for bicycle is disclosed among ZL 00 2 52547.X and the ZL99 2 24178.2, automatic speed-changing device for bicycle has centrifugal driving disk, uniform centrifugal of being hinged with eight lever constructions on the centrifugal driving disk, an end of centrifugal of lever construction is a centrifugal hammer, the other end is a moving arm, moving arm is adjacent to the control dial and links to each other, the control dial links to each other with gear cross dial by connecting rod, during the bicycle traveling, centrifugal of lever construction by automatic speed-changing device for bicycle wheel hub driven rotary, centrifugal hammer produces displacement because of the centnifugal force that rotation produces, make moving arm promote to be adjacent to continuous control dial, drive gear cross dial by connecting rod and slide, realize speed change along the endwisely slipping of axle for bicycle.In these automatic speed-changing device for bicycle, centrifugal rod moving arm directly is adjacent to disc control dial and links to each other, moving arm and the annular arrangement interplanar of control dial be some contact continuous, when centrifugal hammer produces centnifugal force, specific pressure between moving arm and control dial is bigger, friction when centrifugal rotation between moving arm and control dial is also bigger, because between moving arm and control dial is that a specific contact pressure is bigger, moving arm and control dial can wear and tear in centrifugal rotation, these all reduce the driving force of controlling speed change, influence the in-use performance of change-speed box.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, proposes a kind ofly can reduce centrifugal moving arm and the friction between the control dial, alleviate moving arm and the worn-down automatic speed-changing device for bicycle off-load dial of control dial in the transmission of control speed change.
The utility model is realized with the following method.
Automatic speed-changing device for bicycle off-load dial is the disk annular, the external diameter of the disk ring of disk annular automatic speed-changing device for bicycle off-load dial equates with the external diameter of control dial annulus, the end face of a disk ring of disk annular automatic speed-changing device for bicycle off-load dial is the plane of matching with the annular arrangement plane of control dial, is evenly equipped with eight radial grooves that can insert centrifugal moving arm on the end face of another disk ring.
The utility model is placed in centrifugal moving arm and controls between the dial, the utility model is close to the annular arrangement plane of control dial with the end face plane of matching in the annular arrangement plane of control dial and is linked to each other, another has the disk ring end face of radial groove to be close to centrifugal moving arm to link to each other, and eight centrifugal moving arm is inserted in respectively in eight radial grooves.During bicycle running, centrifugal moving arm drives the utility model and rotates, during speed change, centrifugal moving arm promotes the utility model endwisely slipping along axle for bicycle, make the utility model promote to be adjacent to it continuous control dial endwisely slipping along axle for bicycle, drive gear cross dial by connecting rod and slide, realize speed change.
The utility model is driven synchronously by moving arm and rotates, with control between dial be face contact be close to continuous, when centrifugal hammer slides vertically because of centnifugal force generation displacement makes moving arm stir the utility model, because the utility model is that face contacts with the control dial, specific pressure is less, friction is less during transmission, and is not easy to wear, improves the in-use performance of change-speed box.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is that the master of automatic speed-changing device for bicycle off-load dial looks scheme drawing;
Fig. 2 is the schematic side view of automatic speed-changing device for bicycle off-load dial.
The specific embodiment
Among Fig. 1, Fig. 2, automatic speed-changing device for bicycle off-load dial 1 is the disk annular, the external diameter of the disk ring of disk annular automatic speed-changing device for bicycle off-load dial equates with the external diameter of control dial annulus, a disk ring end face of disk annular automatic speed-changing device for bicycle off-load dial is the plane 2 of matching with the annular arrangement plane of control dial, is evenly equipped with eight radial grooves 4 that can insert centrifugal moving arm on another disk ring end face 3.
Claims (1)
1. automatic speed-changing device for bicycle off-load dial, it is characterized in that: be the disk annular, the external diameter of the disk ring of disk annular automatic speed-changing device for bicycle off-load dial equates with the external diameter of control dial annulus, a disk ring end face of disk annular automatic speed-changing device for bicycle off-load dial is the plane of matching with the annular arrangement plane of control dial, is evenly equipped with eight radial grooves that can insert centrifugal moving arm on another disk ring end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420070088 CN2739088Y (en) | 2004-08-03 | 2004-08-03 | Unloading driving plate for automatic speed variator of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420070088 CN2739088Y (en) | 2004-08-03 | 2004-08-03 | Unloading driving plate for automatic speed variator of bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2739088Y true CN2739088Y (en) | 2005-11-09 |
Family
ID=35354155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420070088 Expired - Fee Related CN2739088Y (en) | 2004-08-03 | 2004-08-03 | Unloading driving plate for automatic speed variator of bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2739088Y (en) |
-
2004
- 2004-08-03 CN CN 200420070088 patent/CN2739088Y/en not_active Expired - Fee Related
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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 |