CN2072063U - Crank connecting rod transmission high-speed sport vehicle - Google Patents
Crank connecting rod transmission high-speed sport vehicle Download PDFInfo
- Publication number
- CN2072063U CN2072063U CN 90208114 CN90208114U CN2072063U CN 2072063 U CN2072063 U CN 2072063U CN 90208114 CN90208114 CN 90208114 CN 90208114 U CN90208114 U CN 90208114U CN 2072063 U CN2072063 U CN 2072063U
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- CN
- China
- Prior art keywords
- crank
- pedal
- lever
- bicycle
- connecting rod
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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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- 230000005540 biological transmission Effects 0.000 title abstract description 9
- 238000005096 rolling process Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000386 athletic effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- Steering Devices For Bicycles And Motorcycles (AREA)
Abstract
A crank-link transmission bicycle, especially an improved transmission device. The transmission device is provided with a common large chain wheel, a chain, a flywheel and a crank, and is characterized in that a pair of pedal levers are also arranged on the bicycle frame. The lever shaft connected with one end of the pedal lever is arranged in a pipe with the length of 60-120mm on the frame in a rolling fit manner, and the crank and the pedal lever are connected by a connecting rod. The angle of rotation of the crank can reach 180 degrees when the pedal lever is pedaled once. The racing bicycle made by said drive mechanism can raise the performance of sportsman.
Description
A kind of bicycle driven by slot-and-crank belongs to the improvement of bicycle drive.
Common bicycle drive is made up of pedal, crank, hinge wheel, chain, flywheel.Bicyclist's both feet are pedaled the pedal on a pair of reverse crank alternately, make crank make circular movement, through hinge wheel, chain, flywheel transmission, drive trailing wheel and rotate, and drive bicycle and advance.Adopt this driving device, when crank and ground when vertical, the transmission dead angle appears, the bicyclist is whenever pedaled once, the angle that hinge wheel turns over approximately is 130 °.So the acting of the bicycle of this transmission device is discontinuous, the effort of riding, speed is slower.In order to overcome above-mentioned shortcoming, many inventors have designed pedal-type bicycle and drive spindle driving bicycle.As the CN85203897u " pedal-type bicycle " that Patent Office of the People's Republic of China announces, be to replace crank with the pedal type lever, the bicyclist up and down reciprocatingly steps, and drives the chain transmission part with left and right sides flywheel, drives bicycle and advances.This structure makes the people more continuous to the bicycle acting, so it is comparatively fast more laborsaving to ride.But this structure is whenever pedaled and is once all wanted jack, and this wants consumed energy.When a certain batter was pedaled the arrival nadir, this batter was pedaled together with the original kinetic energy of people's leg and is consumed in vain, can not be converted into the kinetic energy that opposite side pedal type lever moves downward.Ride when very fast, the people is to the poor continuity of bicycle acting.This quite usually bicycle whenever pedal once, 180 ° of the angle out of reachs that hinge wheel turns over, this bicycle rear is not adorned power-transfer clutch and just can not be fallen back in addition, also special interlinked mechanism, complex structure must be set between two pedal type levers.The CN87100276A " actuating unit for bicycle " that announces of Patent Office of the People's Republic of China and for example, it unites two into one interlinked mechanism and hinge wheel, the crank of both sides pedal, thereby solved shortcoming above-mentioned, but pedal of this device is stepped near nadir, when also having a segment distance apart from nadir, the another pedal also and then moves downward.When the hinge wheel uniform rotation of this device, the linear velocity of pedal upward movement is unfavorable for riding greatly faster than the linear velocity that moves downward.Whenever pedal once, the friction force institute work that the people overcomes between slide block and the guide rod is also bigger.The CN2041295U " bicycle driven by slot-and-crank " that announces of Patent Office of the People's Republic of China and for example, it installs an anchor shaft respectively at the cycle frame left and right sides, one end running-fit of a pair of pedal lever is installed on the anchor shaft, the other end is installed pedal, be connected between both sides crank and the pedal lever with the connecting rod running-fit then, thereby overcome shortcoming above-mentioned.But two anchor shafts of this car are installed on the chain stay, in the power of pedaling greatly or when being subjected to colliding, and the easy deformation of chain stay steel pipe, and also the chain stay of this car is identical with the following rake of tubes, and pedal lever must be done longly, does not resist and beats.
The purpose of this utility model is to improve at the existing shortcoming of above-mentioned bicycle drive, thereby a kind of more reasonable structure is provided, and more meets human engineering, and safety performance is good, and speed is fast, the bicycle of good looking appearance.
The design plan of realizing above-mentioned purpose is: two end running-fits that lay respectively at the lever shaft rod of vehicle frame left and right sides are installed among the pipe of long a 60～120mm who is provided with on the vehicle frame, one end of a pair of pedal lever is installed pedal, the other end is installed on the lever shaft rod, and the lever shaft rod can be rotated along with the rotation of pedal lever; Be connected between both sides crank and the pedal lever with the connecting rod running-fit then.
The bicycle drive of above-mentioned formation, its hinge wheel, chain, flywheel, axis parts are textural identical with ordinary bicycle, make assembling easily, stand and beat, do not need jack in riding, this car is whenever pedaled pedal lever once, the crank angle can reach 180 °, make chain continuous substantially to the trailing wheel acting, thereby pedaling power, pedaling once the average velociity homogeneous timing that institute's work, pedal move downward, this car to pedal dynamic frequency higher by 38% than Regular Bicycle, thereby reach laborsaving, the fast speed purpose of riding.
Accompanying drawing 1 is a transmission structures scheme drawing of the present utility model.
Accompanying drawing 2 is an embodiment integral structure scheme drawing of the present utility model.
In the accompanying drawing: 1, crank 2, axis rod 3, hinge wheel
4, chain 5, upright fork 6, vehicle frame 7, flywheel
8, chain stay 9, sleeve pipe 10, lever shaft rod 11, pedal lever
12, pitman shaft 13, connecting rod 14, pedal 15, following pipe
The utility model is described in further detail below in conjunction with accompanying drawing.
Two lever shaft rods (10) are installed among the sleeve pipe (9), and an end of lever shaft rod (10) cooperates with sleeve pipe (9) with ball, steel bowl, and the other end is installed on the pedal lever (11); One end of left and right sides crank (1) is installed on two of axis rod (2), all is fixed with pitman shaft (12) on the other end and the pedal lever (11), and connecting rod (13) just is connected in therebetween; Connecting rod (13) cooperates with adopting antifriction-bearing box cooperating of pitman shaft (12).In the time of should making pedal (14) the arrival nadir on the pedal lever (11) in addition in design and assembling, the connecting rod (13) on another pedal lever (11) is misaligned with crank (1), forms 1～12 ° angle.Like this when pedal (14) when vertex begins to be stepped on suddenly, hinge wheel (3) can not reverse.And make chain (4) more continuous to the trailing wheel acting.The line of centers angle that this car is formed two straight tubes of chain stay (8) is 0～7 °, can adorn the change-speed box of being made up of multistage flywheel.Adopt the bicycle racing of this drive mechanism can significantly improve athletic achievement.
Claims (2)
1, a kind of bicycle driven by slot-and-crank, it have by hinge wheel (3), chain (4), flywheel (7), with the coaxial left and right sides crank (1) of hinge wheel, the driving device that a pair of pedal lever (11) constitutes, the left and right sides that it is characterized in that vehicle frame (6) respectively has a lever shaft rod (10), and an end running-fit of these two lever shaft rods (10) is installed on vehicle frame (6) and goes up among long 60～120 millimeters the sleeve pipe (9) that is provided with; One end of a pair of pedal lever (11) is installed pedal (14), and the other end is installed on the lever shaft rod (10), and connecting rod (13) running-fit is connected between the pitman shaft of the pitman shaft of both sides crank (1) and pedal lever (11).
2, by the described bicycle driven by slot-and-crank of claim 1, the line of centers angle that it is characterized in that forming two straight tubes of chain stay (8) is 0～7 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90208114 CN2072063U (en) | 1990-06-02 | 1990-06-02 | Crank connecting rod transmission high-speed sport vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90208114 CN2072063U (en) | 1990-06-02 | 1990-06-02 | Crank connecting rod transmission high-speed sport vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2072063U true CN2072063U (en) | 1991-02-27 |
Family
ID=4888429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90208114 Withdrawn CN2072063U (en) | 1990-06-02 | 1990-06-02 | Crank connecting rod transmission high-speed sport vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2072063U (en) |
-
1990
- 1990-06-02 CN CN 90208114 patent/CN2072063U/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |