CN2189587Y - Bicycle driving device - Google Patents
Bicycle driving device Download PDFInfo
- Publication number
- CN2189587Y CN2189587Y CN 94206417 CN94206417U CN2189587Y CN 2189587 Y CN2189587 Y CN 2189587Y CN 94206417 CN94206417 CN 94206417 CN 94206417 U CN94206417 U CN 94206417U CN 2189587 Y CN2189587 Y CN 2189587Y
- Authority
- CN
- China
- Prior art keywords
- pedestal
- gear
- gear wheel
- bicycle
- driving device
- 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
The utility model relates to a bicycle driving device. The utility model is characterized in that a centre shaft is provided with a gear wheel which is provided with a partial inner tooth. The inner tooth and a pedal rod are correspondingly arranged in an upper-lower symmetry mode. On the rear part of the centre shaft, an auxiliary shaft is arranged on the same plane with the centre shaft. The left end of the auxiliary shaft is provided with a gear wheel with outer teeth, and the right end is provided with a sprocket wheel. The gear wheel with outer teeth and a gear wheel with inner teeth of the centre shaft are engaged when pedals are rotated to a horizontal position area. The sprocket wheel drives a rear wheel through a bicycle chain. When the device is used in a bicycle, pedals are made to rotate without load in a small force arm area. Therefore, riders can let by a low sport efficiency area and work, and the work efficiency can be raised. Compatibility of the pedal direction of motion can be kept, and the sport impetus loss can be avoided.
Description
The utility model relates to a kind of bicycle driving device.
Existing bicycle driving device is made up of axis, the sprocket wheel and the crank-type pedal that are installed on the axis.Because sprocket wheel is circular fluted disc, when pedal rod rotated near vertical position, its arm of force was very little, and this moment, its driving efficiency was extremely low.Another back and forth directly steps on actuating device, though solved above-mentioned low efficiency drive area problem, wants continuous conversion sense of motion because of riding in motion process, and its kinetic energy rejection is more, and sport efficiency is reduced.
The purpose of this utility model is at above-mentioned problems of the prior art, and a kind of foot-operated sense of motion unanimity that both kept is provided, to reduce kinetic energy rejection; Make the pedal motion rapidly by little arm of force district again, to improve the bicycle driving device of sport efficiency.
The technical scheme that realizes the utility model purpose is: design a kind of bicycle driving device, it has one and is installed in the axis in the pedestal in the bottom of Rinorea bengalensis support body, and its two ends have the crank-type pedal rod; Being connected an auxilliary pedestal behind the middle pedestal with on the same horizon of this pedestal, an auxilliary axle is installed in this auxilliary pedestal, this right-hand member is provided with a sprocket wheel, and left end is provided with a gear; Between the left end pedestal of axis and left pedal rod, an inner gear is installed, is provided with the local internal tooth of upper and lower symmetry on its inner gear with the pedal rod relative direction, the external tooth engagement that this internal tooth and auxilliary axle cog.
The drawing of accompanying drawing is described as follows:
Fig. 1 is this bicycle driving device spatial structure view;
Fig. 2 is mutual alignment view between this device internal-gear and the external tooth gear;
Fig. 3 is this apparatus structure cutaway view.
Embodiment below in conjunction with accompanying drawing is further described the utility model: axis 5 is installed in the pedestal 3 in the bottom of vehicle frame 2, and its position in pedestal is by the axle bowl 14 and ball 15 controls on pedestal 3 both sides.At the both ends of axis fixed installation crank-type pedal 6.On the horizon same of middle pedestal 3 backs, connect an auxilliary pedestal 10 with it, the back of frame 10 is connected to bicycle back fork 9, and auxilliary axle 7 is installed in the pedestal 10, and its position is by the axle bowl 16 and ball 17 controls at pedestal 10 two ends, the right-hand member of auxilliary axle is installed a sprocket wheel 4, and this sprocket wheel is fixing by axle rank and a jam nut 8.The left end of auxilliary axle is installed an external tooth gear 11, and this gear is fixing by an axle key 13 and a shaft retaining ring 18.On the left side of axis 5, be provided with an internal-gear 1 between pedestal 3 and the left pedal rod, it is fixed on the axis by axle key 12, and by nut 19 lockings.Corresponding direction with pedal rod is provided with the local internal tooth of upper and lower symmetry on gear 1, the external tooth engagement on this internal tooth and the gear 11.
This device is applied on the bicycle, and in the pedal rotation process, when its pedal rod was in the level attitude near zone, the external tooth engagement on internal tooth on the internal-gear 1 and the external tooth gear 11 drove sprocket wheel and carries out transmission.And when pedal rod went to the vertical position near zone, transmission gear disengaged, and the pedal no load movement can turn over rapidly, allowed harmonic motion efficiency area and the short and small arm of force in place district time of passing through to greatest extent, thereby improved cyclist's work doing efficiency.And,, avoided the loss of motion energy owing to kept the conformability of pedal motion.
Claims (1)
1, a kind of bicycle driving device, it has an axis (5) that is installed in the bottom pedestal (3) of Rinorea bengalensis support body (2), and its two ends have crank-type pedal rod (6); It is characterized in that being connected an auxilliary pedestal (10) behind pedestal (3) with on the same horizon of this pedestal, an auxilliary axle (7) is installed in it, the right-hand member of axle (7) is provided with a sprocket wheel (4), and left end is provided with an external tooth gear (11); Left end in axis (5) is equipped with an internal-gear (1) between pedestal (3) and the left pedal rod (6), and its gear (1) is gone up the external tooth that is provided with on local internal tooth, this internal tooth and the external tooth gear (11) of upper and lower symmetry with the pedal rod relative direction and meshed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94206417 CN2189587Y (en) | 1994-03-15 | 1994-03-15 | Bicycle driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94206417 CN2189587Y (en) | 1994-03-15 | 1994-03-15 | Bicycle driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2189587Y true CN2189587Y (en) | 1995-02-15 |
Family
ID=33825030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94206417 Expired - Fee Related CN2189587Y (en) | 1994-03-15 | 1994-03-15 | Bicycle driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2189587Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013004126A1 (en) * | 2011-07-04 | 2013-01-10 | 北京健行天下环保科技有限公司 | Drive mechanism and portable treadle drive bicycle using same |
-
1994
- 1994-03-15 CN CN 94206417 patent/CN2189587Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013004126A1 (en) * | 2011-07-04 | 2013-01-10 | 北京健行天下环保科技有限公司 | Drive mechanism and portable treadle drive bicycle using same |
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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 |