CN1061754A - Labour saving eccentric free wheel of bicycle - Google Patents
Labour saving eccentric free wheel of bicycle Download PDFInfo
- Publication number
- CN1061754A CN1061754A CN 90106447 CN90106447A CN1061754A CN 1061754 A CN1061754 A CN 1061754A CN 90106447 CN90106447 CN 90106447 CN 90106447 A CN90106447 A CN 90106447A CN 1061754 A CN1061754 A CN 1061754A
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- CN
- China
- Prior art keywords
- free wheel
- eccentric
- fluted disc
- wheel
- chain
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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 kind of labour saving eccentric free wheel of bicycle, it has structurally adopted bicycle rear axle to depart from the position in Flywheel fluted disc axle center.On its structure, dwindle the ratio of flywheel and gear wheel dish, reached the labour-saving purpose.Chain-regulating wheel is a flower wheel.Wherein there are not Ka Ya and ratchet.Adjust the elasticity of chain along with the rotation of eccentric free wheel.Guarantee that chain is in suitable elasticity all the time.
Description
The present invention relates to a kind of bicycle transmission part labour saving eccentric free wheel, form by eccentric free wheel fluted disc (1), fluted disc axle (2), bicycle rear axle (3), eccentric chain-regulating wheel (4), chain-regulating wheel axle sleeve (5), support (6), chain (7) etc.
The equivalence arm of force equalled zero when prime power (pin acts on the power on the pedal) was parallel with crank axis during existing ordinary bicycle transmission, at this moment there is not the output of power, it is the dead point of power, when crank increases and the equivalent power arm increases from zero from the dead point along the angle of circular movement, the equivalent power arm increases to maximum when changeing 90 °, and this point this shows for the maximum power output point, firmly be uneven in the time of by bike, need force of explosion sometimes; The CN8921589 utility model patent discloses a kind of bicycle of oval wheel transmission, has solved the phenomenon of power output inequality, but its speed of a motor vehicle when reaching certain speed the gear wheel dish sensation of beating is arranged.
The objective of the invention is to solve the prior art deficiency and a kind of labour saving eccentric free wheel of bicycle of invention.
The present invention changes the bicycle freewheel axis hole into eccentric pivot hole by former centre hole, accentric position maximum is at the inside 5mm of the tooth root place of eccentric free wheel fluted disc (1), fix an eccentric chain-regulating wheel at gear wheel dish (8) and eccentric free wheel midway location with support (6), chain (7) all is in suitable tightness when guaranteeing that eccentric free wheel forwards any angle to, eccentric free wheel labour-saving principle is as follows: make the circular movement of doing that two pedals go round and begin again in the time of by bike during the downward tap pedal of leg, as shown in Figure 2, pedal (9) C point is the work optimum regime, flywheel A
1With O
2For axle rotates (the arrow indication is the transmission sense of motion), flywheel A
1With O
1For axle rotates, because O
1Be the fulcrum of flywheel axial rotation, O
1Be eccentric in B
1, A
1The axle elongated, at A
1The edge on firmly, C is just laborsaving, and at this moment the application force of C just in time at A
1On, be optimum Working, when also being labour-saving, because A
1B
1Rotation, chain (7) fluffs gradually, eccentric chain-regulating wheel is along with eccentric free wheel rotates, i.e. A
2, B
2Around O
2Make axial rotation, little by little chain (7) is tightened.The rotation of C, work are renderd a service gradually and are reduced, and at this moment because of C makes circular movement, the strength that leg is stepped on downwards weakens, A
1Around O
1Rotate and B
1On same horizon, A
1, B
1Work done is renderd a service and is equated that at this moment chain (7) becomes the most loose state, A
2, B
2Around O
2Make axial rotation, A
2Major axis is in transfers the tightest stage (see figure 3) of chain.The present position of C as shown in Figure 4 is that leg power is zero, and promptly crank (10) is vertical with horizon, can not work done, and C is in sliding stage, not work done.But because of C is a coast period, B
1Also along with sliding, because B
1Slide rotation, A
1Rising, chain (7) becomes tightly gradually, B
2Around O
2Chain is loosened in rotation.The rotation of D is the work done state, and shank is just firmly work done the time, chain in the flywheel edge far from axle center O
1Elongated, be in beginning work done state.Because of A
1B
1Rotation, chain is in the tightest state, at this moment A
2B
2Rotate B
2Wheelbase is the shortest, and chain is adjusted to suitable elasticity.
Description of drawings:
Fig. 1 is a general illustration, wherein 1. eccentric free wheel fluted discs, 2. fluted disc axle, 3. bicycle rear axle, 4. eccentric chain-regulating wheel, 5. chain-regulating wheel axle sleeve, 6. support, 7. chain, 8. gear wheel dish, 9. pedal, 10. crank; Fig. 2-Fig. 5 is a fundamental diagram; Fig. 6 is an assembly drowing, and wherein: 11 is screw.
Embodiment:
In conjunction with the accompanying drawings the present invention is elaborated.
Composition of the present invention is made up of eccentric free wheel fluted disc (1), fluted disc axle (2), bicycle rear axle (3), eccentric chain-regulating wheel fluted disc (4), eccentric chain-regulating wheel fluted disc axle (5), support (6), chain (7) etc.The outer knuckle-tooth of its eccentric free wheel (1) is identical with flywheel commonly used with the inner card tooth.Fluted disc axle (2) is equipped with ratchet, the bearing that double ball forms is housed between fluted disc axle (2) and the eccentric free wheel fluted disc (1), and the axle center of fluted disc axle (2) can be at the center of its (1) between the position of the inside 5mm of tooth root portion of (1) at the eccentric position on the eccentric free wheel fluted disc (1).Its assembly relation is to depart from the center of (1) that other is identical with flywheel assembly relation commonly used except that the position of fluted disc axle (2) on eccentric free wheel fluted disc (1).When fluted disc axle (2) outward flange deflects away from the tooth root of eccentric free wheel fluted disc (1), should adopt fluted disc axle (2) to be assemblied in the method for eccentric free wheel fluted disc (1) side, with screw (11) eccentric free wheel fluted disc (1) is fixed on fluted disc axle (2) and go up (see figure 6).Fixing for (1) and (2), the H among Fig. 6
2The distance that 15mm-20mm should be arranged, H
1Be the promptly maximum eccentric position (see figure 6) of 5mm.Eccentric chain-regulating wheel (4) dimensional structure is identical with eccentric free wheel fluted disc (1), tooth is not blocked in inside, there is not ratchet with the inside of the chain-regulating wheel axle sleeve (5) that matches, be fixed on support (6) on the midway location of eccentric free wheel (1) and gear wheel dish (8), because its eccentric structure is identical with eccentric free wheel, and the genus flower wheel, no matter which type of position eccentric free wheel turns to, chain-regulating wheel (4) can both make chain (7) be in best elasticity (see figure 1).
The present invention has adopted bicycle rear axle to depart from the flywheel axle center, is actually the diameter that has increased flywheel, dwindles the ratio of gear wheel dish and flywheel, has reached the labour-saving purpose.
Claims (4)
1, a kind of bicycle labor saving formula eccentric free wheel is made up of eccentric free wheel fluted disc (1), fluted disc axle (2), bicycle rear axle (3), eccentric chain-regulating wheel (4), chain-regulating wheel axle sleeve (5), support (6), chain (7) etc., it is characterized in that:
A, the position of fluted disc axle (2) axle center on eccentric free wheel fluted disc (1) are to depart from eccentric free wheel fluted disc (1) center, its eccentric throw by eccentric free wheel fluted disc (1) center between eccentric free wheel fluted disc (1) the inside 5mm of tooth root portion;
B, when fluted disc axle (2) outward flange deflects away from the tooth root of eccentric free wheel fluted disc (1), should adopt fluted disc axle (2) to be assemblied in the side of eccentric free wheel fluted disc (1), be screwed.
2, a kind of bicycle labor saving formula eccentric free wheel according to claim 1 is characterized in that: fix an eccentric chain-regulating wheel (4) with support (6) between eccentric free wheel and the gear wheel dish.
3, a kind of bicycle labor saving formula eccentric free wheel according to claim 2, it is characterized in that: eccentric chain-regulating wheel inside does not have Ka Ya and ratchet, and contour structures is identical with eccentric free wheel, is flower wheel.
4, a kind of bicycle labor saving formula eccentric free wheel according to claim 1 is characterized in that: because eccentric free wheel changes chain (7) elasticity is to adjust to suitable elasticity by the chain-regulating wheel servo-actuated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90106447 CN1061754A (en) | 1990-11-28 | 1990-11-28 | Labour saving eccentric free wheel of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90106447 CN1061754A (en) | 1990-11-28 | 1990-11-28 | Labour saving eccentric free wheel of bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1061754A true CN1061754A (en) | 1992-06-10 |
Family
ID=4880086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90106447 Pending CN1061754A (en) | 1990-11-28 | 1990-11-28 | Labour saving eccentric free wheel of bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1061754A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730152A (en) * | 2011-03-31 | 2012-10-17 | 杨泰和 | Treadle-drive eccentric wheel transmission wheel series with periodically varied speed ratio |
| CN103803007A (en) * | 2012-11-09 | 2014-05-21 | 杨泰和 | Treadle-drive eccentric wheel transmission wheel series with periodically varied speed ratio and having inward packing auxiliary wheel |
-
1990
- 1990-11-28 CN CN 90106447 patent/CN1061754A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730152A (en) * | 2011-03-31 | 2012-10-17 | 杨泰和 | Treadle-drive eccentric wheel transmission wheel series with periodically varied speed ratio |
| TWI586579B (en) * | 2011-03-31 | 2017-06-11 | 楊泰和 | Treadle-drive eccentric wheel transmission wheel series with periodically varied speed ratio |
| CN108609107A (en) * | 2011-03-31 | 2018-10-02 | 杨泰和 | Treadle-drive eccentric wheel transmission wheel series with periodically varied speed ratio |
| CN103803007A (en) * | 2012-11-09 | 2014-05-21 | 杨泰和 | Treadle-drive eccentric wheel transmission wheel series with periodically varied speed ratio and having inward packing auxiliary wheel |
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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 | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |