CN1114277A - Stepless variable speed pedal type driving device for bicycle - Google Patents
Stepless variable speed pedal type driving device for bicycle Download PDFInfo
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- CN1114277A CN1114277A CN 94107703 CN94107703A CN1114277A CN 1114277 A CN1114277 A CN 1114277A CN 94107703 CN94107703 CN 94107703 CN 94107703 A CN94107703 A CN 94107703A CN 1114277 A CN1114277 A CN 1114277A
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Abstract
The pedal-type drive mechanism with stepless speed variation for bicycle is composed of left and right pedals, left and right dynamic speed-varying parts, speed-regulating lever and speed-varying sleeve tube. The speed-regulating lever whose top end is fixed at 90 deg. to rear end of pedal is pivoted to extended end of back axle. One big drive disk and two small ones on centric axle, and a flying wheel on back axle are arranged. The first drive belt passes through the peripheries of big drive disk and flying wheel, and the second drive belt winds around small drive disks and is connected with reset spring and speed-regulating lever at its both ends. The speed variation is controlled by pedal.
Description
The present invention relates to a kind of bicycle, especially relate to a kind of bicycle drive.
Present bicycle drive roughly has coventional type, outer variable speed model and three kinds of forms of internal speed-changing type (respectively as Fig. 3, illustrated in figures 1 and 2), the driving device of any form no matter wherein, owing to all will do the stepping movement of circumference by the rider, therefore, useless power consumption can appear the rotation process from bottom dead point to top dead point, and this continuous circumference power of scrunching is uneven, thereby the little but effort of the power that is obtained, there is the chain-drive shortcoming simultaneously, big as noise, need lubricate and chain case is protected in installing.Outer derailleur wherein also exists the speed governing gearshift time long and can not stop or roll chain when gear shift and gear shift during coastiong and chain can automatic trip stop when riding shortcoming; For described internal speed-changing type, have also that speed range is little, the shelves number is few and owing to rear axle is that hollow shaft can not eaten big weight and impulsive force, therefore easily generation brittle failure, have the shortcomings such as danger when high speed.
The objective of the invention is for existing above-mentioned shortcoming in the driving device that overcomes existing bicycle, provide that a kind of to scrunch laborsaving, speed range big and can regulate the bicycle drive of the speed of a motor vehicle continuously.
Above-mentioned purpose of the present invention is to realize by a kind of bicycle drive of stepless variable speed pedal type.The driving device of this stepless variable speed pedal type comprises: a back vehicle frame, be located in an axis and a rear axle on the front and back end of described back vehicle frame respectively, and control steel cable about left and right sides step, a speed setting controller and one end and the binding of described speed setting controller; Be characterized in, also comprise: left and right sides pedal, the step of the described left and right sides are separately positioned on the front end of corresponding pedal; Left and right power speed changing rod unit, comprise left and right governor lever and slide over the left and right speed change sleeve pipe of described corresponding governor lever, the upper end of described every governor lever respectively with the rear end of corresponding pedal to link near 90 ° angle relative fixed and to be rotatably supported on the corresponding overhanging end of described rear axle; At least one is located at the big drive plate on the back frame sides of described axis rotationally; Two little drive plates that are arranged on the big drive plate outside of described axis regularly; At least one is located on the described rear axle and the flywheel on the end of big drive plate homonymy, is on the same longitudinal plane with big drive plate; One first driving band, winding is on described big drive plate and flywheel; Left and right pull back spring, their ends separately are installed in respectively on two pipe manifolds at rear portion of back vehicle frame; Two second driving bands, winding is on corresponding two little drive plates respectively for they, and the one end is connected with the other end of described pull back spring respectively, and its other end wears respectively by described corresponding speed change sleeve pipe and is connected with governor lever; The other end of described control steel cable is connected with left and right sides speed change sleeve pipe respectively.
Described big drive plate two be arranged on rotationally respectively axis near the big tep reel on the vehicle frame both sides, back, described driving band can be a kind of belt, high strength ribbon, steel cable or steel band; Described big drive plate also can be a big chain plate, and described flywheel also can be a band tooth flywheel, and described first driving band also can be chain.
Adopt technique scheme of the present invention, its advantage is: one because power driven partly adopted no chain gear, thus noiseless, need not to lubricate, totally, good impact resistance and driving efficiency height; Two, because what adopted pedal type almost is up and down the mode that vertically scrunches pedal, make the original circular movement that sole is done by bike the time become simple stepping movement up and down, transmitted power is big, simultaneously because up-and-down movement frequency height, therefore more laborsaving than the bicycle drive of original structure, and speed can nearly double; Three, owing to adopted the stepless change of lever principle, the bicyclist can carry out infinite speed variation as required, and, can finish in the kind at one second to the governing time of dead slow from the most at a high speed; In addition, under any circumstance, as stopping, coastiong or scrunch Shi Douke and carry out speed governing and all bigger than the speed range of the driving device of present various bicycles, for example speed ratio can be designed between 6: 1 and 1: 1 scope.
Now further specify technical scheme of the present invention by most preferred embodiment of the present invention and in conjunction with its accompanying drawing.
Fig. 1 is a kind of front view of existing outer variable speed model bicycle;
Fig. 2 is a kind of front view of existing internal speed-changing type bicycle;
Fig. 3 is a kind of front view of existing single speed coventional type bicycle;
Fig. 4 is the front view of bicycle that has an embodiment of stepless variable speed pedal type driving device of the present invention;
Fig. 5 is the birds-eye view of the driving device of Fig. 4;
Fig. 6 is the front view of bicycle that has another embodiment of stepless variable speed pedal type driving device of the present invention;
Fig. 7 is the birds-eye view of Fig. 6 driving device.
Now please see Figure 4,5, the bicycle shown in the figure has the stepless variable speed pedal type driving device of one embodiment of the invention.As shown in the figure, this stepless variable speed pedal type driving device comprises: one is arranged on speed setting controller 1, the one back vehicle frame 22 on the vehicle frame 32, is located in axis 31 and the rear axle 12 that is located on its pipe manifold two rear ends on the vehicle frame 22 front end hubs 33 of back; About big tep reel 21,23 be rotatably supported in respectively on the nearly hub of being positioned at of axis 31 33 both sides; About little tep reel 20,26 be separately fixed at about the outside of big tep reel 21,23; Left and right flywheel 13,11 is installed on the outer end, the nearly left and right sides of rear axle 12, be in respectively with about on big tep reel 21, the 23 corresponding same longitudinal planes; A pair of left and right driving band 16,29 difference windings are on big tep reel 21,23 and corresponding left and right sides flywheel 13,11; A pair of strip shape left and right sides pedal 4,4 ', front end separately is provided with step 19,24 respectively; Left and right sides power shifter bar parts 15,30, comprise left governor lever 7 and left speed change sleeve pipe 8 and right governor lever 7 ' and right speed change sleeve pipe 8 ' (not shown) respectively, this two speed governing sleeve pipe 8,8 ' respectively slide over each self-corresponding left and right sides governor lever 7,7 ' on, the upper end of each governor lever and cooresponding pedal 4,4 ' rear end are to link near 90 ° angle relative fixed and to be rotatably supported on the overhanging end 10,14 of rear axle 12, and this angle is more satisfactory to be 85 °; Left and right sides pull back spring 17,28, an end separately is respectively on the pipe manifold by vehicle frame 22 rear portions, chuck 35,35 ' be fixed on back, another is to left and right sides driving band 18,27, winding is on described little tep reel 20,26 respectively, the one end is connected respectively with the front end of pull back spring 17,28, its other end wear respectively by described corresponding speed change sleeve pipe 8,8 ', by tightening screw 9 and governor lever 7,7 ' be connected; About control speed change steel cable 34,34 ', pass respectively the total steel rope sleeve 2 of speed governing, left and right sides steel rope sleeve 3,3 ' and governor lever steel rope sleeve 6,6 ' one end link with speed setting controller 1 respectively, the other end respectively with speed change sleeve pipe 8,8 ' be connected; Described governor lever steel rope sleeve 6,6 ' by binding clip 5 be fixed in governor lever 7,7 ' on.
Described driving band 16,29,27,18 can adopt belt, high strength ribbon, steel cable or steel band etc.
The principle of work of the driving device of this pattern is as described below.Before by bike, left and right sides pedal 4,4 ' owing to the pulling force of pull back spring 17,28 places on the top dead point; When by bike, in a single day stepping on left-hand tread plate 4, just make with left-hand tread plate 4 and link the left power governor lever 7 of one by moving the generation pulling force behind the forward direction, act on left spring 17, left little tep reel 20 is rotated together with the big tep reel 21 in a left side, wheel is advanced thereby drive left flywheel 13 rotations by driving band 16; When stepping under the right crus of diaphragm, left foot lifts, because the effect of the elastic restoring force of left pull back spring 17 makes left-hand tread plate 4 get back to top dead point, so alternately scrunches, and car is constantly advanced.As the needs speed governing, as long as pulling speed setting controller 1, by steel cable 34,34 ' act on speed governing sleeve pipe 8,8 ', make it corresponding governor lever 7,7 ' on slide, with change driving band 18,27 pulling governor levers 7,7 ' acting point, thereby reach the speed governing purpose.
Now please see Figure 6,7, the bicycle shown in the figure has the stepless variable speed pedal type driving device of another embodiment of the present invention.The difference of the structure of its structure and Fig. 4,5 illustrated embodiments is, original two left and right big tep reels 21,23 now are that a big chain plate 36 that is contained on vehicle frame one side replaces, and original left and right sides flywheel 13,11 replaces for the band tooth flywheel 37 that is positioned on chain drum 36 homonymies that is located at rear axle 10.In addition, a chain 11 windings on described big chain plate 36 and band tooth flywheel 37 to mesh respectively with them.
Claims (8)
1. the driving device of the stepless variable speed pedal type of a bicycle, it comprises: a back vehicle frame, be located in an axis and a rear axle on the vehicle frame front and back end, back respectively, left and right sides step, the control speed change steel cable that one speed setting controller and an end and described speed setting controller link, it is characterized in that it also comprises:
Left and right pedal, the step of the described left and right sides are arranged on the front end of corresponding pedal;
Left and right power speed changing rod unit, comprise left and right governor lever and slide over left and right speed change sleeve pipe on the described left and right governor lever, the upper end of described every governor lever respectively with the rear end of corresponding pedal to link near 90 ° of angle relative fixed and to be rotatably supported on the corresponding overhanging end of described rear axle;
At least one turns at the big drive plate that is located on back vehicle frame one side of described axis;
Two little drive plates that are arranged on the big drive plate outside of described axis regularly;
At least one is located on the described rear axle and the flywheel on the end of big drive plate homonymy, is on the same longitudinal plane with big drive plate;
One first driving band, winding is on described big drive plate and flywheel;
Left and right pull back spring, their ends separately are installed in respectively on two breeches pipes of trailing portion of back vehicle frame;
Two second driving bands, winding is on described little drive plate respectively for they, and the one end is connected with the other end of described pull back spring respectively, and its other end wears respectively by described corresponding speed change sleeve pipe and is connected with governor lever;
The other end of described control speed change steel cable is connected with the speed change sleeve pipe respectively.
2. driving device as claimed in claim 1 is characterized in that, described big drive plate be two be located at respectively axis near the big tep reel on the vehicle frame both sides, back, described driving band is a kind of high strength band.
3. driving device as claimed in claim 2 is characterized in that, described high strength band is a kind of belt.
4. driving device as claimed in claim 2 is characterized in that, described high strength band is a kind of high strength ribbon.
5. driving device as claimed in claim 2 is characterized in that, described high strength band is a kind of steel cable.
6. high strength band as claimed in claim 2 is a kind of steel band.
7. driving device as claimed in claim 1 is characterized in that, described big drive plate is a big chain plate, and described flywheel is a band tooth flywheel, and described first driving band is a chain.
8. driving device as claimed in claim 1 is characterized in that, the angle between described governor lever upper end and pedal rear end is 85 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94107703 CN1114277A (en) | 1994-06-30 | 1994-06-30 | Stepless variable speed pedal type driving device for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94107703 CN1114277A (en) | 1994-06-30 | 1994-06-30 | Stepless variable speed pedal type driving device for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1114277A true CN1114277A (en) | 1996-01-03 |
Family
ID=5033178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94107703 Pending CN1114277A (en) | 1994-06-30 | 1994-06-30 | Stepless variable speed pedal type driving device for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1114277A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523147A (en) * | 2013-06-13 | 2014-01-22 | 林永松 | Bicycle easy to pedal and saving in labor |
| CN105129011A (en) * | 2015-09-15 | 2015-12-09 | 沈嘉诚 | Stepless speed regulation bicycle |
-
1994
- 1994-06-30 CN CN 94107703 patent/CN1114277A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523147A (en) * | 2013-06-13 | 2014-01-22 | 林永松 | Bicycle easy to pedal and saving in labor |
| CN105129011A (en) * | 2015-09-15 | 2015-12-09 | 沈嘉诚 | Stepless speed regulation bicycle |
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