CN1098374A - Bicycle and three-wheel vehicle step device - Google Patents
Bicycle and three-wheel vehicle step device Download PDFInfo
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- CN1098374A CN1098374A CN 93109136 CN93109136A CN1098374A CN 1098374 A CN1098374 A CN 1098374A CN 93109136 CN93109136 CN 93109136 CN 93109136 A CN93109136 A CN 93109136A CN 1098374 A CN1098374 A CN 1098374A
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- crank
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- wheel
- sprocket wheel
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Abstract
A kind of bicycle and three-wheel vehicle step device, belong to foot drive device.Match in combination and pedal position by qualified pair of planar four-bar mechanism, make described step device have simultaneously the maximum discrepancy in elevation of two pedals little, can overcome the poor efficiency stroke, can increase advantage such as power arm length.Bicycle of the present invention and three-wheel vehicle step device with its fairly simple rational structure.The stability and safety of car, brisk laborsaving, the comfortable and tireless purpose of riding have been reached.
Description
The invention relates to the device that steps of bicycle and three-wheel vehicle, belong to the foot drive device field.
Common car is to adopt the pedal axle directly to be fixed on the crank, and pedal, crank and sprocket wheel are together made the device that steps of coaxial rotation, order about car by the transmission of chain and flywheel and advance.Its advantage is to step that apparatus structure is simple, chain sprocket drive is more reasonable, but also has some shortcoming and defect.For example the maximum discrepancy in elevation ambassador of two pedals car center of gravity high stability difference is dangerous, simultaneously the high fatiguability of thigh pendulum spoke; Drive torque is little whenever to be pedaled a sprocket wheel and turns over neutral angle less than 130 degree, and the poor efficiency stroke occurs near last lower dead point position discontinuous the riding of acting required great effort.
Since the eighties, people are under the advantage condition that keeps the car chain sprocket drive, the device that steps for car has been done useful work, for example propose some new departures in succession: " the lever-linked formula bicycle " of the science and technology news hurdle publication in " science magazine " in June, 83 number is " to utilize lever principle to increase the length of original crank in efficient range, make raising power efficiency when pedaling profit and acting on the starting position." but increased the maximum height difference of two pedals simultaneously, therefore inconvenience is used.And for example CN87100267A disclosed " engine installation of bicycle " has adopted the flywheel slide block and has had the mechanism that the guide rod of stretcher links mutually, obvious labor-saving effect is arranged, but this device another pedal when riding near nadir for moves downward together and then also.And the linear velocity of pedal upward movement is unfavorable for riding greatly faster than the linear velocity that moves downward.CN1057431A disclosed " slot and crank driven high-speed sport cycle " " is installed in two end running-fits that lay respectively at the lever shaft rod of the vehicle frame left and right sides among the pipe that is provided with on the vehicle frame; an end of a pair of pedal lever is installed pedal; the other end is installed on the lever shaft rod; 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 for another example.This scheme is whenever pedaled crank angle of pedal lever can reach 180 degree, steps the comparable Regular Bicycle height of frequency, can reach quick purpose." but brought the problem of two pedal maximum height difference expansions simultaneously.
The objective of the invention is on the basis of above-mentioned every device of sublating, release a kind of have simultaneously the maximum discrepancy in elevation of two pedals little, can overcome the poor efficiency stroke, can increase the novel device that steps of advantages such as power arm length.
New bicycle of the present invention and three-wheel vehicle step device, it be by sprocket wheel, with coaxial fixing left and right sides crank, pedal parts, the relative frame of sprocket wheel reciprocating and relatively the frame member of making complicated plane motion constituted; It is characterized in that, described device has a pair of dead center position that do not have when the crank active, and the positive reversal of stroke of the corresponding crank motion member of crank turns over the four-bar linkage that two neutral angles do not wait, and this a pair of mechanism is mutually 180 degree angles with two cranks to be fixed in the same rotating shaft, combine with the common frame form, described common frame is the part of vehicle frame or by constituting jointly with vehicle frame fixed coupling unit and vehicle frame region of interest, two pedal axles are separately fixed at described a pair of mechanism and do on the member of complicated plane motion with respect to vehicle frame.
Bicycle of the present invention and three-wheel vehicle step device, reached the stability and safety of car, brisk laborsaving, the comfortable and tireless purpose of riding with its fairly simple rational structure.
Description of drawings
Accompanying drawing 1 steps device (combination pendulum guide rod type) scheme drawing
Accompanying drawing 2 steps device (combination swing slide bar type) scheme drawing
Accompanying drawing 3 steps device (built crank rocker-type) scheme drawing
Accompanying drawing 4 steps device (combined eccentricity formula linking rod-crank type) scheme drawing
The embodiment that steps device of bicycle of the present invention and three-wheel vehicle
Embodiment sees Fig. 1
Axle 4 connects with the vehicle frame duplicate invoice that rotates, left and right sides crank 5 and 3 is mutually 180 degree angles and is fixed on the axle 4 at the vehicle frame left and right sides respectively, sprocket wheel 10 fixes with the turning cylinder axis with axle 4 between vehicle frame and right crank 3, and left slider 6 and left crank 5 revolute pairs connect and connect as moving sets with the chute of left guide rod; Right slide block 2 and right crank 3 revolute pairs connect, connect as moving sets with the chute of right guide rod, left and right sides guide rod 1 and 9 swing rotating shaft coaxial lines connect with the vehicle frame duplicate invoice that rotates respectively at the vehicle frame left and right sides, and forming a pair of crank guide rod mechanism with pendulum guide rod is the form that common frame combines with the vehicle frame.
Left and right sides pedal 7 and 8 is installed in relative vehicle frame respectively and does on the left and right sides slider component 6 and 2 of complicated plane motion.
On corresponding right crank 3 in sprocket wheel 10 right sides and right slide block 2 hinge axes positions, fix one and be parallel to the hinge pin of axle 4 and make it hinged, but then sprocket wheel 10 double as cranks 3 use with slide block 2.
Being fixedly connected of left and right sides pedal 7 and 8 pedal axle and left and right sides slider component 6 and 2 can be to allow the pedal axle can change the adjustable of coupled position in the slider component plane.
Embodiment two sees Fig. 2
Embodiment two and embodiment one are basic identical, difference only is to have replaced left and right sides guide rod 9 and 1 among the embodiment one with left and right sides slide bar 9 and 1, moves the left and right sides slide block 6 and 2 chutes along left and right sides guide rod 9 and 1 that have replaced among the embodiment one with left and right sides slide block 6 and 2 along left and right sides slide bar 9 and 1 and moves.Thereby having formed with a pair of slide crank linkage with swing slide bar is the form that common frame combines with the vehicle frame.
Embodiment three sees Fig. 3
It is identical that embodiment three and embodiment one are coupled to each other relation at left and right sides crank 5 and 3, sprocket wheel 10, axle 4 and vehicle frame thereof. Left rocker 9 and 1 swing rotating shaft coaxial line connect with the vehicle frame duplicate invoice that rotates respectively at the vehicle frame left and right sides, and the left connecting rod 6 two ends pair that rotates connects with left rocking bar 9 and left crank 5 respectively; Right connecting rod 2 two ends rotate, and secondary connects a pair of quadric linkage with monolateral rocking bar of formation respectively with right rocking bar 1 and right crank 3 be the form that common frame combines with the vehicle frame.
Left and right sides pedal 7 and 8 is installed in relative vehicle frame respectively and does on the left and right sides link component 6 and 2 of complicated plane motion.
Similar to embodiment one, sprocket wheel 10 has the function of right crank 3 concurrently by installation hinge pin mode.Being fixedly connected between pedal axle and link component can be adjustable.
Embodiment four sees Fig. 4
Embodiment four is coupled to each other the pass with embodiment one at left and right sides crank 5 and 3, sprocket wheel 10, axle 4 and vehicle frame thereof and fastens identical.Left and right sides slideway 1 and 9 correspondence respectively is fixed on vehicle frame left and right sides left and right sides slide block and connects with left and right sides slideway moving sets respectively, the two ends pair that rotates of left side connecting rod 6 connects with left slider and left crank 5 respectively, the two ends of right connecting rod 2 pair that rotates connects with right slide block and right crank 3 respectively, forming a pair of centering type piston crank mechanism is the form that common frame is combined to be fixed in the slideway on the vehicle frame and the revolute pair of vehicle frame region of interest-axle 4, left and right sides slide block can replace with left and right sides roller in the mechanism, left and right sides roller and the left and right sides connecting rod duplicate invoice that rotates respectively connects, and can roll in the slideway of the left and right sides.Left and right sides pedal 7 and 8 is installed in relative vehicle frame and does on the left and right sides link component 6 and 2 of complicated plane motion.
Similar to embodiment one, sprocket wheel 10 has the function of right crank 3 concurrently by installation hinge pin mode.Fixed position on pedal axle and the link component plane can be done change and be regulated.
Certainly in embodiment one to four, pedal parts is installed on the reciprocating member of relative vehicle frame, for example make the guide rod of reciprocally swinging among the embodiment one.Make the slide bar of reciprocally swinging among the embodiment two, make the rocking bar of reciprocally swinging among the embodiment three, do among the embodiment four on the slider component of straight reciprocating motion and device also be operable.
The device that steps of the present invention can compatiblely have the flexure member drive technology now, for example use the present invention under the middling speed condition, to design, the height of car center of gravity reasonably is reduced to safety rate, and the change-speed box that utilizes how fast flywheel is by the demand of speed change with the satisfied bigger speed of a motor vehicle or hill climbing ability.In order to enlarge speed range, the described sprocket wheel 10 that steps in the device can be double speed or how fast sprocket wheel.And for example when described sprocket wheel 10 adopts generation to have the wheel disc of special tooth profile to replace, the device that steps of the present invention equally can compatible toothed belt or the drive technology of steel band.
Claims (6)
1, a kind of bicycle and three-wheel vehicle step device, it be by sprocket wheel, with the coaxial fixing a pair of crank of sprocket wheel, pedal parts and fixedly the member of pedal axle constituted; It is characterized in that, described device has a pair of dead center position that do not have when the crank active, and the positive and negative stroke of the corresponding crank motion member of crank turns over the four-bar linkage that two neutral angles do not wait, and this a pair of mechanism is mutually 180 degree angles with two cranks and is fixed in and combines with the common frame form in the same rotating shaft, described common frame is the part of vehicle frame or by constituting jointly with vehicle frame fixed coupling unit and vehicle frame region of interest, two pedal axles are separately fixed at described a pair of mechanism and do on the member of complicated plane motion with respect to vehicle frame.
2, bicycle as claimed in claim 1 and three-wheel vehicle step device, it is characterized in that said sprocket wheel can be fixed a hinge pin that is parallel to crank shaft at its end face uses the double crank of doing of sprocket wheel.
3, bicycle as claimed in claim 1 and three-wheel vehicle step device, it is characterized in that said two pedal axles also can be separately fixed at described a pair of mechanism with respect on the reciprocating member of vehicle frame.
As the device that steps of claim 1 and 3 described bicycles and three-wheel vehicle, it is characterized in that 4, said pedal axle also can be to allow the pedal axle can change the adjustable of coupled position in described member plane being fixedly connected on the member.
5, bicycle as claimed in claim 1 and three-wheel vehicle step device, it is characterized in that said sprocket wheel can be double speed or how fast sprocket wheel.
6, bicycle as claimed in claim 1 and three-wheel vehicle step device, it is characterized in that said sprocket wheel can replace with the wheel disc of band special tooth profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93109136 CN1098374A (en) | 1993-08-02 | 1993-08-02 | Bicycle and three-wheel vehicle step device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93109136 CN1098374A (en) | 1993-08-02 | 1993-08-02 | Bicycle and three-wheel vehicle step device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1098374A true CN1098374A (en) | 1995-02-08 |
Family
ID=4987484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93109136 Pending CN1098374A (en) | 1993-08-02 | 1993-08-02 | Bicycle and three-wheel vehicle step device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1098374A (en) |
-
1993
- 1993-08-02 CN CN 93109136 patent/CN1098374A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |