CN1439570A - Self switching three sprockets of bicycle - Google Patents
Self switching three sprockets of bicycle Download PDFInfo
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- CN1439570A CN1439570A CN 03109258 CN03109258A CN1439570A CN 1439570 A CN1439570 A CN 1439570A CN 03109258 CN03109258 CN 03109258 CN 03109258 A CN03109258 A CN 03109258A CN 1439570 A CN1439570 A CN 1439570A
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- fly
- lying
- flies
- coil spring
- wheel
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Abstract
An automatically speed-variable three-speed flywheel of bicycle is composed of the drive chain wheel, left end cover, regulating spacer, ratchet, and spring of the first flywheel, the active gear and bevel gear of the second flywheel, the bevel gear of the third flywheel, etc. Its advantages are simple structure, automatic speed variation, both forward and reverse rides, and high safety.
Description
Technical field the present invention relates to a kind of bicycle use three and flies to become automatically three fast flywheels.
The gear shift flywheel of the existing domestic production of background technology all is to handle control speed change, complex structure, complex operation with dialling the chain device.
Summary of the invention the objective of the invention is: provide a kind of simple in structure, speed change bicycle use three not out of supply flies to become automatically three fast flywheels.Technical scheme of the present invention is: adorning two one fly lying pawls (6) on the one fly lying pawl groove (H) of fly driven wheel (2) the external diameter left side, adorn a fly coil spring (7) and clamp a fly lying pawl (6) on a fly coil spring groove (I), towards riveting one fly coil spring backing block (J); There are the external diameter left side tens sprockets (π) and internal diameter to have tens one fly driving chain wheels and two that fly ratchet (G) to fly to adorn two two fly lying pawls (11) on the two fly lying pawl grooves (n) of driving wheel (1) top external diameter the right, on two fly coil spring grooves (O), adorn two fly coil springs (12) and clamp two fly lying pawls (11), behind riveting two fly coil spring backing blocks (P), one fly rolling ball track (E) and and fly to fill on the big rolling ball track (E) ball (3) on the right, fly driven wheel (2) left side is encased in a fly driving chain wheel and two to fly in driving wheel (1) internal diameter, after the left side one flown to fill ball (3) on the rolling ball track (E), load onto several pieces fly square gaskets (5), the fly right-hand turning left end cover (4) of screwing on.Internal diameter is processed with the left side two that dozens of two flies two fly bevel gears (8) of ratchet (m) to fly to fill on the rolling ball track (K) and is nested into behind the ball (3) on the right external diameter that a fly driving chain wheel and two flies driving wheel (1), after the right two flown to fill ball (3) on the rolling ball track (K), load onto several pieces two fly square gaskets (10), screwing on two flies left-handed right end cap (9).Adorning two three fly lying pawls (16) on the three fly lying pawl grooves (T) of fly driven wheel (2) external diameter the right, on three fly coil spring grooves (U), adorn three fly coil springs (17) and clamp three fly lying pawls (16), towards riveting three fly coil spring backing blocks (V); Internal diameter is processed with tens three left sides three that fly three fly bevel gears (13) of ratchet (S) to fly to fill on the rolling ball track (Q) on the external diameter on the right side that is nested into fly driven wheel (2) behind the ball (3), three fly after rolling ball track (Q) fills ball (3) on the right, load onto several pieces three fly square gaskets (15), screwing on three flies left-handed right end cap (14).Coaxial successively dress hole jump ring (21) bearing (23) spacer tube (24) on coupling angular wheel (20), behind bearing (23) and the axle jump ring (25), be encased in bearing fixing sleeve pipe and the bolt (22), hole jump ring (21) is installed to lining, hole jump ring groove (y), after key (19) finishing bevel gear cuter (18) for sleeping in installed to the other end of coupling angular wheel (20), assembling levelling and two fly bevel gears (8), and three fly bevel gears (13) correct engagement.Fly driven wheel (2) left side internal diameter right-hand screw thread (D) and backshaft skin (31) are gone up right-hand screw thread (D) assembling together.On bearing fixing sleeve pipe and the bolt (22) two is bolted in cycle frame back vent (29) assembly opening and fixes with nut.Fill big ball (26) and pearl mouth nut (27) bearing fit on the big rolling ball track (W) on fly driven wheel (2) right side, pearl mouth nut (27) is fixed on the hind axle (28).Hind axle (28) is fixed on the cycle frame back vent (29).The invention has the beneficial effects as follows: it is simple in structure to dial chain device gear shift flywheel than existing manual control, can realize becoming three speed automatically, not out of supply during speed change.Low speed, laborsaving when just pedaling drives when being suitable for climbing against the wind; Just fall to mix when pedaling the speed of a motor vehicle moderate easily pedal not tired; Slightly at a high speed, be suitable for driving when road conditions are good during back-pedal.Positive back-pedal conversion freely, crank pedal is motionless during bicycle coasting, can not retreat downwards on any slope and slide, and is safe and reliable.
Description of drawings Fig. 1 is that bicycle use three flies to become automatically three fast flywheels by pitch 12.7,12 tooth sprockets main cutaway view and left view that to be example draw in 1: 1 ratio.
Fig. 2 is the A among Fig. 1---the right cutaway view of A.
Fig. 3 is the B among Fig. 1---the right cutaway view of B.
Fig. 4 is the C among Fig. 1---the right cutaway view of C.
Fig. 5 is that bicycle use three flies to become automatically the three fast flywheels " front view on the bicycle that is installed in 22.
Part sequence number is following as showing among the figure: a fly driving chain wheel and two flies driving wheel (1), fly driven wheel (2), ball (3), one fly right-hand turning left end cover (4), a fly square gasket (5), a fly lying pawl (6), one fly coil spring (7), two fly bevel gears (8), two fly left-handed right end cap (9), two fly square gaskets (10), two fly lying pawls (11), two fly coil springs (12), three fly bevel gears (13), three fly left-handed right end cap (14), three fly square gaskets (15), three fly lying pawls (16), three fly coil springs (17), finishing bevel gear cuter (18), the key (19) that crouches, coupling angular wheel (20), hole jump ring (21), bearing fixing sleeve pipe and bolt (22), bearing (23), spacer tube (24), axle jump ring (25), big ball (26), pearl mouth nut (27), hind axle (28).Cycle frame back vent (29), bicycle use three fly to become automatically three fast flywheels (30), backshaft skin (31), trailing wheel (32).Sprocket (π), right-hand screw thread (D), one flies rolling ball track (E), one flies big external diameter rolling ball track (E '), and one flies right-hand screw thread (F), and one flies ratchet (G), one fly lying pawl groove (H), a fly coil spring groove (I), a fly coil spring backing block (J), two fly rolling ball track (K), and two fly minus thread (ι), and two fly ratchet (m), two fly lying pawl grooves (n), two fly coil spring grooves (O), two fly coil spring backing blocks (P), three fly rolling ball track (Q), three fly minus thread R), three fly ratchet (S), three fly lying pawl grooves (T), three fly coil spring grooves (U), three fly coil spring backing blocks (V), big rolling ball track (W), keyway (X), hole jump ring groove (y), axle jump ring groove (Z).
The specific embodiment is in Fig. 1, one fly lying pawl (6) and a fly driving chain wheel and two fly one on the driving wheel (1) and fly ratchet (G), on two fly lying pawls (11) and two fly bevel gears (8) two fly ratchet (m), and three on three fly lying pawls (16) and three fly bevel gears (13) fly will stay suitable gap between the ratchet (S).One fly right-hand turning left end cover (4), two fly left-handed right end cap (9) and three flies left-handed right end cap (14) when tightening, and increase and decrease a fly square gasket (5), two fly square gaskets (10) and three fly square gaskets (15) according to suitable gap.Guarantee that the engagement of coupling angular wheel (20), finishing bevel gear cuter (18) and two fly bevel gears (8), three fly bevel gears (13) is correct, the shaft centre line of coupling angular wheel (20) will and the vertical and intersectant centerline of fly driven wheel (2).
Shown in Fig. 2, Fig. 3, Fig. 4, a fly lying pawl (6) and two fly lying pawls (11) and three fly lying pawls (16) are same installation direction; One flies ratchet (G) and two flies ratchet (m) and three and flies ratchet (S) also for same direction.When bicycle is just being pedaled, two fly lying pawls (11) and two fly ratchet (m) and three fly lying pawls (16) and three and fly ratchet (S) and skid, and have only a fly lying pawl (6) to bite one and fly ratchet (G) and drive a fly driving chain wheel and two and fly driving wheel (1), fly driven wheel (2), backshaft skin (31), trailing wheel (32) and rotate forward.During the bicycle back-pedal, one fly lying pawl (6) and one flies ratchet (G) and skids, two fly lying pawls (11) are bitten two and are flown ratchet (m) drive two fly bevel gears (8) coupling angular wheels (20), finishing bevel gear cuter (18) and three fly bevel gears (13) rotate, three fly lying pawls this moment (16) are also bitten three and are flown ratchet (S) drive fly driven wheel (2) backshaft skin (31), trailing wheel (32) rotates forward, when bicycle slides forward, one fly lying pawl (6), two fly lying pawls (11), three fly lying pawls (16) fly ratchet (G) with one respectively, two fly ratchet (m), and three fly ratchet (S) skids.When bicycle retreated, crouch ratchet and ratchet were all bitten, so bicycle can not retreat on the slope and can not retreat downslide.
Shown in Fig. 5, right-hand screw thread (D) and backshaft skin (31) that bicycle use three flies to become automatically in the three fast flywheels (30) are gone up right-hand screw thread (D) assembling together.On bearing fixing sleeve pipe and the bolt (22) two is bolted in cycle frame back vent (29) assembly opening and fixes with nut.Fill big ball (26) and pearl mouth nut (27) bearing fit on the big rolling ball track (W) on fly driven wheel (2) right side, pearl mouth nut (27) is fixed on the hind axle (28), and hind axle (28) is fixed on the cycle frame back vent (29).
Claims (3)
1, a kind of bicycle use three flies to become three fast flywheels automatically and comprises drive sprocket, fly driven wheel, ball, end cap, levelling pad, ratchet, spring etc., it is characterized in that: adorn two one fly lying pawls (6) on the one fly lying pawl groove (H) of fly driven wheel (2) the external diameter left side, on a fly coil spring groove (I), adorn a fly coil spring (7) and clamp a fly lying pawl (6), towards riveting one fly coil spring backing block (J); There are the external diameter left side tens sprockets (π) and internal diameter to have tens one fly driving chain wheels and two that fly ratchet (G) to fly to adorn two two fly lying pawls (11) on the two fly lying pawl grooves (n) of driving wheel (1) top external diameter the right, on two fly coil spring grooves (O), adorn two fly coil springs (12) and clamp two fly lying pawls (11), behind riveting two fly coil spring backing blocks (P), one fly rolling ball track (E) and and fly to fill on the big rolling ball track (E) ball (3) on the right, fly driven wheel (2) left side is encased in a fly driving chain wheel and two to fly in driving wheel (1) internal diameter, after the left side one flown to fill ball (3) on the rolling ball track (E), load onto several pieces fly square gaskets (5), the fly right-hand turning left end cover (4) of screwing on.Internal diameter is processed with the left side two that dozens of two flies two fly bevel gears (8) of ratchet (m) to fly to fill on the rolling ball track (K) and is nested into behind the ball (3) on the right external diameter that a fly driving chain wheel and two flies driving wheel (1), after the right two flown to fill ball (3) on the rolling ball track (K), load onto several pieces two fly square gaskets (10), screwing on two flies left-handed right end cap (9).Adorning two three fly lying pawls (16) on the three fly lying pawl grooves (T) of fly driven wheel (2) external diameter the right, on three fly coil spring grooves (U), adorn three fly coil springs (17) and clamp three fly lying pawls (16), towards riveting three fly coil spring backing blocks (V); Internal diameter is processed with tens three left sides three that fly three fly bevel gears (13) of ratchet (S) to fly to fill on the rolling ball track (Q) on the external diameter on the right side that is nested into fly driven wheel (2) behind the ball (3), three fly after rolling ball track (Q) fills ball (3) on the right, load onto several pieces three fly square gaskets (15), screwing on three flies left-handed right end cap (14).
2, bicycle use three according to claim 1 flies to become automatically three fast flywheels, it is characterized in that: the coaxial successively hole jump ring (21) of loading onto on the coupling angular wheel (20), bearing (23), spacer tube (24), bearing (23) and axle jump ring (25), reinstall in bearing fixing sleeve pipe and the bolt (22), hole jump ring (21) installs to lining, hole jump ring groove (y); Key (19) for sleeping in, finishing bevel gear cuter (18) installs to the other end of coupling angular wheel (20), assembling levelling and two fly bevel gears (8), three fly bevel gears (13) engagement.
3, bicycle use three according to claim 1 flies to become automatically three fast flywheels, it is characterized in that: fly driven wheel (2) left side internal diameter right-hand screw thread (D) and backshaft skin (31) are gone up right-hand screw thread (D) assembling together, and two on bearing fixing sleeve pipe and the bolt (22) is bolted in cycle frame back vent (29) assembly opening and fixes with nut.Fill big ball (26) and pearl mouth nut (27) bearing fit on the big rolling ball track (W) on fly driven wheel (2) right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03109258 CN1439570A (en) | 2003-04-09 | 2003-04-09 | Self switching three sprockets of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03109258 CN1439570A (en) | 2003-04-09 | 2003-04-09 | Self switching three sprockets of bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1439570A true CN1439570A (en) | 2003-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03109258 Pending CN1439570A (en) | 2003-04-09 | 2003-04-09 | Self switching three sprockets of bicycle |
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| CN (1) | CN1439570A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108297979A (en) * | 2018-03-23 | 2018-07-20 | 黄冈师范学院 | A kind of changeable anti-theft bicycle |
-
2003
- 2003-04-09 CN CN 03109258 patent/CN1439570A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108297979A (en) * | 2018-03-23 | 2018-07-20 | 黄冈师范学院 | A kind of changeable anti-theft bicycle |
| CN108297979B (en) * | 2018-03-23 | 2023-08-04 | 黄冈师范学院 | Anti-theft bicycle with changeable functions |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |