CN101830268A - Bicycle - Google Patents
Bicycle Download PDFInfo
- Publication number
- CN101830268A CN101830268A CN201010153007A CN201010153007A CN101830268A CN 101830268 A CN101830268 A CN 101830268A CN 201010153007 A CN201010153007 A CN 201010153007A CN 201010153007 A CN201010153007 A CN 201010153007A CN 101830268 A CN101830268 A CN 101830268A
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- CN
- China
- Prior art keywords
- trailing wheel
- crank
- bicycle
- rotation axis
- transition
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- 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.)
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Abstract
The invention discloses a bicycle which comprises a bicycle frame, a back wheel, a left crank axle of a left pedal, a right crank axle of a right pedal and a transmission mechanism assembly. A median plane is limited by the bicycle frame; the radius of the back wheel is R, and the back wheel is installed on the bicycle frame and can rotate around a back wheel rotational axis which is vertical to the median plane; the two crank axles are installed on the bicycle frame, are respectively arranged at the left side and the right side of the median plane and can rotate around a crank rotational axis, the crank rotational axis is parallel to the back wheel rotational axis and is arranged in front of the back wheel rotational axis, and the distance between the crank rotational axis and the back wheel rotational axis is no more than R; and the transmission mechanism assembly is used for transferring rotation motion of the two crank axles to the back wheel.
Description
Technical field
The present invention relates to a kind of bicycle, more specifically say to relate to that a kind of the hand of buying car in installments drives and the hand-held design bicycle that do not carry other people or weight.
Background technology
One of present technique field R﹠D direction be bicycle do miniaturization and lighting, difficult point wherein is that vehicle frame will carry human body body weight and adaptive human body stature, must have certain length dimension and load-carrying capacity.So, bicycle will be made miniaturization and lighting just has cooresponding technical risk.
Summary of the invention
The invention provides a kind of bicycle for this reason, comprising:
A vehicle frame, this vehicle frame limits a bit planes;
A radius is the trailing wheel of R, and this trailing wheel is mounted on vehicle frame can be around a trailing wheel rotation axis rotation perpendicular to described bit planes;
The left crank shaft of a left-hand tread plate and the right crank shaft of a right-hand tread plate, described two crank shafts are mounted to left side and the right side that lays respectively at described bit planes on vehicle frame, and can rotate around same crank rotation axis, this crank rotation axis is parallel to the trailing wheel rotation axis and is positioned at its place ahead and spacing between the two is not more than R; With
Assembly of drive gear is used for rotatablely moving of two crank shafts passed to described trailing wheel.
Description of drawings
Fig. 1 illustrates the schematic side view of a bicycle of the present invention.
Fig. 2 illustrates the expansion scheme drawing of an embodiment of transmission mechanism of bicycle assembly of the present invention.
The specific embodiment
As shown in Figure 1, bicycle of the present invention comprises a vehicle frame 10 and the front-wheel 51 and the trailing wheel 21 that are installed on the vehicle frame 10.Front and rear wheel can rotate with respect to vehicle frame 10 around front-wheel central axis 50 and trailing wheel central axis 20 respectively.The diameter of trailing wheel is D, and radius is R.
Vehicle frame 10 comprises a steering fork that is installed to front-wheel 51 11, one load-bearing vertical beams 14 that are installed to trailing wheel 21, steering fork 11 and load-bearing vertical beam 14 crossbeam 12 and the cant beam 13,16,17 that couple together.Reference numeral 18 among cant beam such as the figure is divided into brace portion 13 and rear wheel fork dress portion 16,17 as train spacing point.Fork is equipped with handle 19 to 11 tops, and jockey's vehicle seat 15. is equipped with in load-bearing vertical beam top
Vehicle frame 10 limits a bit planes, and trailing wheel rotation axis 20 is perpendicular to this bit planes.Trailing wheel 21 has a back wheel face perpendicular to trailing wheel rotation axis 20, and preferably this back wheel face is positioned at the bit planes of vehicle frame 10.
By left and right bearing 37 a left crank shaft 35 and a right crank shaft 36 are housed respectively in the rear wheel fork dress portion 16,17 of cant beam, left and right crank shaft 35 and 36 respectively is equipped with a song 8 38 and a stretcher 39.Left and right crank shaft 35 and 37 is mounted to can be around the crank rotation axis 30 difference independent rotation perpendicular to the vehicle frame bit planes.
The present invention also comprise one be enclosed within left and right crank shaft 35 and 36 and trailing wheel 21 between the assembly of drive gear of transferring power, this transmission device can guarantee that at work left and right crank shaft 35 and 36 is synchronously or electric shafts.Crank rotation axis 30 is positioned at trailing wheel axis 20 the place aheads, and spacing between the two is less than the trailing wheel radius R.
According to principle of human engineering, jockey's favourable or strong posture that treadles is: leg scrunches to a certain certain tilt direction of front lower place.In the present invention, because the horizontal throw between crank rotation axis 30 and the trailing wheel axis 20 significantly shortens, horizontal throw between vehicle seat 15 and the trailing wheel rotation axis 20 is also with regard to corresponding shortening, until the load-bearing center of vehicle seat can be put into trailing wheel rotation axis 20 directly over, even be positioned at the rear of its level orientation.
Because the length of crossbeam 12 is standards, so span has shortened between front and back wheel 51 and 21.Simultaneously, compare with standard bicycle, jockey's body weight can apply bending force for crossbeam 12 and cant beam 13 by vehicle seat 15 hardly.Two legs stand on the stretcher 39 even if the jockey leaves vehicle seat 15, and the bending force that cant beam 13 is applied also greatly reduces, and that is to say that cycle frame 10 of the present invention can saving in material and expendable weight.
The present invention also comprises an assembly of drive gear, is used for transferring power between described two crank shafts 35,36 and described trailing wheel 21.
More particularly, as illustrated in fig. 1 and 2, on load-bearing vertical beam 14, a transition S. A. 40 is installed by bearing 45, this transition rotating shaft parallel in the trailing wheel rotation axis of trailing wheel 21 and both spacings greater than the trailing wheel radius R.On transition S. A. 40, be installed with the first and second and the 3rd intermediate chain wheel 42 and 43 and 41, left crank and chain-wheel 31 and right crank and chain-wheel 33 are installed respectively on left and right crank shaft 35 and 36, are also had one to be mounted to the rear wheel sprocket 22 that is meshed with trailing wheel 21 around trailing wheel axis 20.By first chain 32 first intermediate chain wheel 42 and left crank and chain-wheel 31 are coupled together, realize the transmission of power between left crank shaft 37 and the transition S. A. 40 thus, be referred to herein as Left Drive; By second chain 34 second intermediate chain wheel 43 is coupled together with right crank and chain-wheel 33, realize the transmission of power between right crank shaft 36 and the transition S. A. 40 thus, be referred to as right transmission system.The transmitting ratio of left and right transmission system is set to equate, just can keep left and right sides crank 38 synchronous or fast together, and make its rotation phase angle around crank rotation axis 30 differ about 180 degree.Left and right transmission system constitutes first fen transmission device of assembly of drive gear.
By the 3rd chain 28 the 3rd intermediate chain wheel 41 and rear wheel sprocket 22 are coupled together, realize the transmission of power between transition S. A. 40 and the trailing wheel 21 thus, referred to herein as second fen transmission device of assembly of drive gear.
That is to say that the assembly of drive gear of present embodiment comprises first fen transmission device and second fen transmission device.
Best, rear wheel sprocket 22 can be a flywheel, and promptly this flywheel can only but can oppositely rotate freely with respect to trailing wheel 21 to the rotation direction transmitting movement that moves ahead of trailing wheel 21, promptly can not be to trailing wheel 21 back transfer power.
With regard to the relative motion relation between the 3rd intermediate chain wheel 41 and the transition S. A. 40, the 3rd intermediate chain wheel 41 also can be such flywheel.
In addition, transition S. A. 40 also can be installed in the rear wheel fork dress portion 16,17 of cant beam or be installed to (not shown) on the brace 13 of cant beam, and the spacing between transition S. A. and the trailing wheel axis 20 still needs greater than the trailing wheel radius R.
Moreover, above-mentioned Left Drive system and right transmission system and second fen transmission device each or one of them can adopt: first pair of bevel gear engaged transmission+transmission shaft+second pair bevel gear engaged transmission.
Also have, can also cancel transition S. A. 40 and on sprocket wheel and/or gear.That is to say that described left and right transmission system can be directly connected on the left and right sprocket wheel and/or gear that the and arranged on left and right sides of trailing wheel 21 is provided with, and from left and right crank shaft directly to trailing wheel 21 transferring power.
Claims (5)
1. bicycle comprises:
A vehicle frame, this vehicle frame limits a bit planes;
A radius is the trailing wheel of R, and this trailing wheel is mounted on vehicle frame can be around a trailing wheel rotation axis rotation perpendicular to described bit planes;
The left crank shaft of a left-hand tread plate and the right crank shaft of a right-hand tread plate, described two crank shafts are mounted to left side and the right side that lays respectively at described bit planes on vehicle frame, and can rotate around same crank rotation axis, this crank rotation axis is parallel to the trailing wheel rotation axis and is positioned at its place ahead and spacing between the two is not more than R; With
Assembly of drive gear is used for rotatablely moving of two crank shafts passed to described trailing wheel.
2. bicycle as claimed in claim 1, it is characterized in that, transition S. A. perpendicular to described bit planes is installed on described vehicle frame, spacing between this transition S. A. and the trailing wheel rotation axis is greater than R, described assembly of drive gear comprises the first fen transmission device and the second fen transmission device that is used for transferring power between transition S. A. and described trailing wheel that are used for transferring power between described two crank shafts and described transition S. A., transmission device comprised Left Drive system and the right transmission system of a transferring power between right crank shaft and transition S. A., the wherein left side in transferring power between left crank shaft and the transition S. A. in described first minute, the transmitting ratio of right transmission system equates.
3. bicycle as claimed in claim 2 is characterized in that described assembly of drive gear comprises gear transmission.
4. bicycle as claimed in claim 2 is characterized in that described assembly of drive gear comprises the chain sprocket transmission.
5. as each described bicycle of claim 1-4, it is characterized in that jockey's vehicle seat is installed on described vehicle frame, and described jockey's vehicle seat has a load-bearing center, described load-bearing is centered close to the vertical top of described trailing wheel rotation axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010153007A CN101830268A (en) | 2010-04-22 | 2010-04-22 | Bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010153007A CN101830268A (en) | 2010-04-22 | 2010-04-22 | Bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101830268A true CN101830268A (en) | 2010-09-15 |
Family
ID=42714522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010153007A Pending CN101830268A (en) | 2010-04-22 | 2010-04-22 | Bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101830268A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4301890A1 (en) * | 1993-01-14 | 1994-07-21 | Egon Nehrke | wheel |
| CN2182777Y (en) * | 1993-10-29 | 1994-11-16 | 彭国强 | Speed-changeable bicycle with two step transmission with back wheel axle used as crank |
| DE4325274A1 (en) * | 1993-07-28 | 1995-02-02 | Franz Dr Ing Kerner | Bicycle |
| CN1221692A (en) * | 1997-12-29 | 1999-07-07 | 爱德华多·P·乌尔西亚 | Cycling apparatus |
| JP2008273462A (en) * | 2007-05-07 | 2008-11-13 | Matsumoto Kei | Bicycle of short overall length |
-
2010
- 2010-04-22 CN CN201010153007A patent/CN101830268A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4301890A1 (en) * | 1993-01-14 | 1994-07-21 | Egon Nehrke | wheel |
| DE4325274A1 (en) * | 1993-07-28 | 1995-02-02 | Franz Dr Ing Kerner | Bicycle |
| DE4325274C2 (en) * | 1993-07-28 | 1998-02-12 | Kerner Franz Dr | bicycle |
| CN2182777Y (en) * | 1993-10-29 | 1994-11-16 | 彭国强 | Speed-changeable bicycle with two step transmission with back wheel axle used as crank |
| CN1221692A (en) * | 1997-12-29 | 1999-07-07 | 爱德华多·P·乌尔西亚 | Cycling apparatus |
| JP2008273462A (en) * | 2007-05-07 | 2008-11-13 | Matsumoto Kei | Bicycle of short overall length |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhu Denghe Document name: Notification to Make Formalities Rectification |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100915 |