CN2547629Y - Speed-changing cylindrical gear transmission for bicycle - Google Patents
Speed-changing cylindrical gear transmission for bicycle Download PDFInfo
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- CN2547629Y CN2547629Y CN 02273415 CN02273415U CN2547629Y CN 2547629 Y CN2547629 Y CN 2547629Y CN 02273415 CN02273415 CN 02273415 CN 02273415 U CN02273415 U CN 02273415U CN 2547629 Y CN2547629 Y CN 2547629Y
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Abstract
The utility model relates to a novel transmission for bicycle, in particular to a speed-changing cylindrical gear transmission for bicycle, which is characterized in that: the utility model comprises a center shaft speed-changing main transmission part, a rear crotch part, a middle third wheel part, a rear wheel and a brake sticking part. The utility model is characterized in shortcut speed change without impact vibration, technical universality with the prior bicycle and reasonable structure design. The utility model adopts three single straight-tooth cylindrical gears for meshing transmission, guarantees the thickness of injection molding gears as much as possible within limited axial size, decreases gear deformation, reduces transmission noise, and decreases weight. Addendum coefficient 1 guarantees the meshing overlap coefficient of the gears. The adoption of main transmission gears provided with flywheels brings more convenience for the replacement after damage and decreases cost. The adoption of planetary gear mechanism for changing speed can also improve the carrying capacity and the life-span of the gears.
Description
Technical field the utility model relates to a kind of later-model bicycle transmission structure---bicycle adjustable speed Cylindrical gear actuator.
Background technology is present, and both at home and abroad the traditional type of drive of bicycle trade is chain gear, often needs lubricatedly during use, also exists and stings clothing, greasy dirt is arranged, easily fall blockchain, noise and reach inefficient shortcoming greatly.The variable speed bicycle of Chu Xianing is to replace chain gear with gear transmission in recent years, and it is low that it has good lubricity, long service life, noise, and its driving torque, mechanical efficiency all are better than chain gear.The adjustable speed gear system that wherein is used for virgin one-tenth dual-purpose bicycle with Chinese utility model patent ZL98216297.9, have two kinds of speed ratios, conduct simultaneously is virgin, one-tenth is dual-purpose, but exist structure complicated, adopt the dual gear speed governing to realize two kinds of speed ratios, have shortcomings such as the reduced thickness of gear is yielding.
Technology contents the utility model is the type of drive of bicycle for a change, a kind of gear rear crotch that made wheel shaft can obtain stable support, individual gears engaged transmission are provided, steel is moulded the final gear of dress system flywheel outward in adopting, and the adjustable speed Cylindrical gear actuator of dress planetary gear mechanism speed governing on axis.
The utility model bicycle adjustable speed Cylindrical gear actuator content Description:
The utility model bicycle adjustable speed Cylindrical gear actuator is characterized in that: be partly to be made of axis speed governing main transmission section, rear crotch part, intermediate setting wheel part, trailing wheel and band-type brake.
Axis speed governing main transmission section: go up the dress planetary gear mechanism at axis (1), at the endoporus dress steel flywheel (17) of final gear (20); Toe joint hand (26) connects with the final gear (20) of adorning steel flywheel (17) and carries out speed governing beyond the planetary gear mechanism, be tightly to connect by: final gear (20) with overcoat (52), the right end cap (25) that blocks with back-up ring (24) connects with the bearing (21) that compresses with screw (22), gland (23); Hole in the right-hand member of final gear (20) by left wheel hub cylindrical location, screws in plug screw (15), compresses flywheel (17) with screw (18), gland (19); Right-hand member in axis (1), locating shim (11), pawl base disk (12), compress gasket (13) connect firmly with key (10) and axis (1); Pawl base (14) and pawl base disk (12) thread connection, ratchet (16), soft rubber (95) replace that steel wire is very heavy to be contained on the pawl base (14), compress gasket (13), the right is equipped with bearing (4), packing ring (5), right pedal and is turned (6), packing ring (8), screw (9), it is fastening with locating shim (11), pawl base disk (12), compress gasket (13) that rotary screw (9) makes packing ring (8), right pedal turn the right shoulder of (6), axis (1) right-hand member pillow block, guarantees that ratchet (16) is with fixing axial location and flywheel (17) ratchet engagement; Be equipped with key (2) at the left wheel hub of final gear (20) and connect firmly, take over (26) with the external tooth that back-up ring (28) blocks, planetary gear mechanism has the right pinion carrier (30) of satellite gear axis hole to be connected with final gear (20) with right-hand member bearing (3) with key (44) at corresponding site, left end and bearing (41), the axis (1) that the left end cap (35) that blocks with back-up ring (36) connects connects firmly; The capable frame of left lateral star (32) that the satellite gear axis hole is arranged at corresponding site is by taper pin (50) location, be fastened on the right pinion carrier (30) by screw (94), needle roller (38) is connected with planetary wheel (39) with the spider gear shaft (33) that fixes with clamp (34) by two packing rings (37) axial location; Center gear (48) connects with bearing (45) and axis (1) with back-up ring (46) stop bit; Brake wheel (49) connects firmly by key (42) and center gear (48), fixes with back-up ring (40), and external toothing (51) floats, and with planetary wheel (39), external tooth catcher (26) engagement, the lower end is ball-shaped screw mandrel (a 29) control axial location; Screw left end screw (9), turn (6), packing ring (43) axis (1) right-hand member pillow block left side shoulder with the fastening axial restraint of axis (1) by left end packing ring (8), pedal; Cover (27), right pinion carrier (30), packing ring (47), center gear (48), bearing (45) are with right pillow block left side shoulder of axis (1) and back-up ring (46) axial location.
The rear crotch part: back vent (91) connects firmly with middle outer shaft sleeve (52) left end, the other end and back vent (91) connect firmly with the connector (60) of flange (53), connect firmly with an end and middle outer shaft sleeve (52) right-hand member, interior fork (93) that the other end and axle casing (74) connect firmly constitutes " U " shape back vent that is parallel to each other, again with connects the gear rear crotch that the common formation of outer fork (92) that axis (1), rear axle (64) made wheel shaft (89) obtain reliable and stable support is parallel to each other with bearing (4), bearing (77).
The intermediate setting wheel part: with interior fork (93), outer fork (92) two concentric cross that axle hole tightly connects wheel shaft (89) one ends with pillow block, the other end fixes with back-up ring (88), the third wheel (90) that bearing (85) connects with mistake wheel shaft (89) fixes by axis hole one end shoulder and other end back-up ring (86), and bearing (85) both sides of third wheel (90) are by packing ring (84), packing ring (87) axial location.
Trailing wheel and band-type brake part: rear-wheel hub (69) connects firmly by key (70) and rear axle (64), axial location is adjusted with nut (68), nut (71) in both sides, rear axle gear (73) is in interior fork (93) outside, connect firmly by key (78) and rear axle (64), bearing (72) and rear axle (64) that rear bearing box (74) blocks back-up ring (75) with left end endoporus shoulder the right connect, and by nut (80), packing ring (81), packing ring (82), packing ring (76) rear axle gear (73) axial location are fixed.Internally fork (93) is fixing mutually with rear axle (64), and brake wheel (61) connects firmly by key (63) and rear axle (64), with back-up ring (65), bearing (62), packing ring (66) axial location; Rear side housing (59) flush fit and the back fuse-box (57) that connect by bearing (62) and rear axle (64) connect, fix with back-up ring (58), back fuse-box (57) is fastening by bolt (55), nut (54) and flange (53), the connector (60) that flange (53) connects firmly by bolt (67) with back vent (91) again is fastening, and bonnet (79) is fastened on the bearing box of outer fork (92) with screw (83).
Planetary gear mechanism in order to speed governing adopts i
b a HType, i
H a b=1/1.14-1/1.56, module of gear 2.5, addendum coefficient 1, angular deflection are just revised; Gear material: center gear (48), planetary wheel (39) are nylon 6; Internally toothed annulus (51) is 45.
Adopting three single spur wheels is gear (20), gear (90), gear (73) engaged transmission, and gear material nylon 6, module of gear 3, addendum coefficient 1, angular deflection are just revised.
It is outer shroud that planetary gear bearing adopts with needle roller (38), planetary wheel (39), bore area, and planet wheel spindle (33) outside face is the needle bearing of interior ring.
The concrete structure that interior steel is moulded the final gear of dress system flywheel outward is: steel flywheel (17) is had outside thread, and the wheel hub left end is the location cylindrical, or cylindrical not to be with outside thread all be to locate cylindrical; The wheel hub right side is the recessed tooth of rectangle denture clutch, the left side of plug screw (15) is a rectangle denture clutch double wedge, with plug screw (15) flywheel (17) is screwed in nylon 6 final geares (20) that right-hand member has knock hole, screw, use screw (18), gland (19) fastening again.The cylindrical of flywheel (17) can also be for there being the externally threaded form of location cylindrical; Final gear (20) gear and tooth hub also can be made into the dress system.
For improving transmission accuracy, service life and the mechanical efficiency of bicycle, used bearing is except that planetary gear bearing, and all the other are single-row radial ball bearing, make bicycle lighter when riding.
The utlity model has speed change does not fast have impact shock, the technology commonality is arranged, the characteristics of reasonable in design with existing bicycle.The utility model adopts three nylon 6 single spur wheel engaged transmission, in limited axial dimension, guaranteed as far as possible injection made gear thickness, reduce gear shifting quadrant texturing, reduce the transmission noise, reduce weight; Addendum coefficient 1 has guaranteed the gear mesh overlap coefficient; The final gear of flywheel is equipped with in employing, makes to damage the back replacing conveniently, cost-cutting.Adopt single-row radial ball bearing, improve transmission accuracy, service life and the mechanical efficiency of bicycle, make bicycle lighter when riding.Do not adorn planetary gear mechanism, external tooth catcher if use the utility model, can become not speed governing spur gear drive bicycle with the same speed of existing chain bicycle.
Description of drawings Fig. 1 is a bicycle adjustable speed Cylindrical gear actuator structural representation
Fig. 2 is the bicycle outward appearance lateral plan that has the adjustable speed Cylindrical gear actuator
Fig. 3 is a bicycle adjustable speed Cylindrical gear actuator part sectional view
The specific embodiment: the utility model bicycle adjustable speed Cylindrical gear actuator is achieved in that by axis speed governing main transmission section, rear crotch part, intermediate setting wheel part, trailing wheel and band-type brake and partly constitutes.See Fig. 1, axis speed governing main transmission section: go up the dress planetary gear mechanism at axis (1), at the endoporus dress steel flywheel (17) of final gear (20); Toe joint hand (26) connects with the final gear (20) of adorning steel flywheel (17) and carries out speed governing beyond the planetary gear mechanism, be tightly to connect by: final gear (20) with overcoat (52), the right end cap (25) that blocks with back-up ring (24) connects with the bearing (21) that compresses with bolt (22), gland (23); Hole in the right-hand member of final gear (20) by left wheel hub cylindrical location, screws in plug screw (15), compresses flywheel (17) with screw (18), gland (19); Right-hand member in axis (1), locating shim (11), pawl base disk (12), compress gasket (13) connect firmly with key (10) and axis (1); Pawl base (14) and pawl base disk (12) thread connection, ratchet (16), soft rubber (95) replace that steel wire is very heavy to be contained on the pawl base (14), compress gasket (13), the right is equipped with bearing (4), packing ring (5), right pedal and is turned (6), packing ring (8), screw (9), it is fastening with locating shim (11), pawl base disk (12), compress gasket (13) that rotary screw (9) makes packing ring (8), right pedal turn the right shoulder of (6), (see figure 1) axis (1) right-hand member pillow block, guarantees that ratchet (16) is with fixing axial location and flywheel (17) ratchet engagement; Be equipped with key (2) at the left wheel hub of final gear (20) and connect firmly, take over (26) with the external tooth that back-up ring (28) blocks, planetary gear mechanism has the right pinion carrier (30) of satellite gear axis hole to be connected with final gear (20) with right-hand member bearing (3) with key (44) at corresponding site, left end and bearing (4), the axis (1) that the left end cap (35) that blocks with back-up ring (36) connects connects firmly; The capable frame of left lateral star (32) that the satellite gear axis hole is arranged at corresponding site is by taper pin (50) location, be fastened on the right pinion carrier (30) by screw (94), needle roller (38) is connected with the planet wheel spindle (33), the planetary wheel (39) that fix with clamp (34) by two packing rings (37) axial location; Center gear (48) connects with bearing (45) and axis (1) with back-up ring (46) stop bit; Brake wheel (49) connects firmly by key (42) and center gear (48), fixes with back-up ring (40), and external toothing (51) floats, and with planetary wheel (39), external tooth catcher (26) engagement, the lower end is ball-shaped screw mandrel (a 29) control axial location; Screw left end screw (9), turn (6), packing ring (43) axis (1) right-hand member pillow block left side shoulder with the fastening axial restraint of axis (1) by left end packing ring (8), pedal; Cover (27), right pinion carrier (30), packing ring (47), center gear (48), bearing (45) are with right pillow block left side shoulder of axis (1) and back-up ring (46) axial location.The transmitting ratio of epicyclic gear transmission is: 1
H a b=1/1.5.
The rear crotch part: back vent (91) connects firmly with middle outer shaft sleeve (52) left end, the other end and back vent (91) connect firmly with the connector (60) of flange (53), connect firmly with an end and middle outer shaft sleeve (52) right-hand member, interior fork (93) that the other end and axle casing (74) connect firmly constitutes " U " shape back vent that is parallel to each other, again with connects the gear rear crotch that the common formation of outer fork (92) that axis (1), rear axle (64) made wheel shaft (89) obtain reliable and stable support is parallel to each other with bearing (4), bearing (77).
The intermediate setting wheel part: with interior fork (93), outer fork (92) two concentric cross that axle hole tightly connects wheel shaft (89) one ends with pillow block, the other end fixes with back-up ring (88), the third wheel (90) that bearing (85) connects with mistake wheel shaft (89) fixes by axis hole one end shoulder and other end back-up ring (86), and bearing (85) both sides of third wheel (90) are by packing ring (84), packing ring (87) axial location.
Trailing wheel and band-type brake part: rear-wheel hub (69) connects firmly by key (70) and rear axle (64), axial location is adjusted with nut (68), nut (71) in both sides, rear axle gear (73) is in interior fork (93) outside, connect firmly by key (78) and rear axle (64), bearing (72) and rear axle (64) that rear bearing box (74) blocks back-up ring (75) with left end endoporus shoulder the right connect, and by nut (80), packing ring (81), packing ring (82), packing ring (76) rear axle gear (73) axial location are fixed.Internally fork (93) is fixing mutually with rear axle (64), and brake wheel (61) connects firmly by key (63) and rear axle (64), with back-up ring (65), bearing (62), packing ring (66) axial location; Rear side housing (59) flush fit and the back fuse-box (57) that connect by bearing (62) and rear axle (64) connect, fix with back-up ring (58), back fuse-box (57) is fastening by bolt (55), nut (54) and flange (53), the connector (60) that flange (53) connects firmly by bolt (67) with back vent (91) again is fastening, and bonnet (79) is fastened on the bearing box of outer fork (92) with screw (83).
Dynamic duty situation of the present utility model: when the time without the handlebar handle tension strap of the brake (31), turn the couple that (6) revolution produces to wear the fastening pedal of pin (7) and axis (1), directly by axis (1) with ratchet (16), flywheel (17), make final gear (20) revolution synchronously, (see figure 2) final gear (20) drives with its ingear third wheel (90) and reaches the rear axle gear (73) that is meshed with third wheel, drive rear axle (64), rear-wheel hub (69), with the pedal power accidental resemblance to, be called at a slow speed planetary gear mechanism idle running this moment with the same rotating speed revolution of existing not speed change chain bicycle.When with the tension strap of the brake of the handle on the handlebar (31), the center gear of planetary gear mechanism (48) braking, then pedal turns the couple that (6) are produced, make axis (1), drive pinion carrier (30), (32), spider gear shaft (33) is revolution synchronously, planetary wheel (39) is driven and its ingear external toothing (51) revolution, transmitting ratio i
H a b=1/1.5, drive and its ingear external tooth catcher (26) by external toothing (51), drive final gear (20) revolution synchronously simultaneously, the rotating speed of final gear this moment (20) is not for passing through planetary gear mechanism, (promptly do not strain the strap of the brake, center gear (48) is not braked, planetary wheel (39), gear ring (51), external tooth catcher (26) idle running).By ratchet (16), flywheel (17) directly drives 1.5 times of revolution rotating speed, makes it pass through third wheel (90), trailing wheel (73) by axis (1), and the trailing wheel of drive turns (6) couple with pedal, and rotating in the same way rotating speed has also improved 1.5 times simultaneously and has been called fast.When the handle that unclamps on the handlebar, when not straining the strap of the brake (31), become again immediately at a slow speed and be and the same speed of existing not speed change chain bicycle, when using the handlebar handle again, during the tension strap of the brake (31), can be changed into again immediately fast, fast conversion at a slow speed is very quick, and do not impact the tension back strap of the brake (56) brake.
Claims (6)
1, a kind of bicycle adjustable speed Cylindrical gear actuator is characterized in that: be partly to be made of axis speed governing main transmission section, rear crotch part, intermediate setting wheel part, trailing wheel and band-type brake;
Axis speed governing main transmission section: go up the dress planetary gear mechanism at axis (1), at the endoporus dress steel flywheel (17) of final gear (20); Toe joint hand (26) connects with the final gear (20) of adorning steel flywheel (17) and carries out speed governing beyond the planetary gear mechanism, be by: final gear (20) tightly connects with overcoat (52), and the right end cap (25) that blocks with back-up ring (24) connects with the bearing (21) that compresses with screw (22), gland (23); Hole in the right-hand member of final gear (20) by left wheel hub cylindrical location, screws in plug screw (15), compresses flywheel (17) with screw (18), gland (19); Right-hand member in axis (1), locating shim (11), pawl base disk (12), compress gasket (13) connect firmly with key (10) and axis (1); Pawl base (14) and pawl base disk (12) thread connection, ratchet (16), soft rubber (95) replace that steel wire is very heavy to be contained on the pawl base (14), compress gasket (13), the right is equipped with bearing (4), packing ring (5), right pedal and is turned (6), packing ring (8), screw (9), it is fastening with locating shim (11), pawl base disk (12), compress gasket (13) that rotary screw (9) makes packing ring (8), right pedal turn the right shoulder of (6), axis (1) right-hand member pillow block, guarantees that ratchet (16) is with fixing axial location and flywheel (17) ratchet engagement; Be equipped with key (2) at the left wheel hub of final gear (20) and connect firmly, take over (26) with the external tooth that back-up ring (28) blocks, planetary gear mechanism has the right pinion carrier (30) of satellite gear axis hole to be connected with final gear (20) with right-hand member bearing (3) with key (44) at corresponding site, left end and bearing (41), the axis (1) that the left end cap (35) that blocks with back-up ring (36) connects connects firmly; The capable frame of left lateral star (32) that the satellite gear axis hole is arranged at corresponding site is by taper pin (50) location, be fastened on the right pinion carrier (30) by screw (94), needle roller (38) is connected with planetary wheel (39) with the spider gear shaft (33) that fixes with clamp (34) by two packing rings (37) axial location; Center gear (48) connects with bearing (45) and axis (1) with back-up ring (46) stop bit; Brake wheel (49) connects firmly by key (42) and center gear (48), fixes with back-up ring (40), and external toothing (51) floats, and with planetary wheel (39), external tooth catcher (26) engagement, the lower end is ball-shaped screw mandrel (a 29) control axial location; Screw left end screw (9), turn (6), packing ring (43) axis (1) right-hand member pillow block left side shoulder with the fastening axial restraint of axis (1) by left end packing ring (8), pedal; Cover (27), right pinion carrier (30), packing ring (47), center gear (48), bearing (45) are with right pillow block left side shoulder of axis (1) and back-up ring (46) axial location.
The rear crotch part: back vent (91) connects firmly with middle outer shaft sleeve (52) left end, the other end and back vent (91) connect firmly with the connector (60) of flange (53), connect firmly with an end and middle outer shaft sleeve (52) right-hand member, interior fork (93) that the other end and axle casing (74) connect firmly constitutes " U " shape back vent that is parallel to each other, again with connects the gear rear crotch that the common formation of outer fork (92) that axis (1), rear axle (64) made wheel shaft (89) obtain reliable and stable support is parallel to each other with bearing (4), bearing (77).
The intermediate setting wheel part: with interior fork (93), outer fork (92) two concentric cross that axle hole tightly connects wheel shaft (89) one ends with pillow block, the other end fixes with back-up ring (88), the third wheel (90) that bearing (85) connects with mistake wheel shaft (89) fixes by axis hole one end shoulder and other end back-up ring (86), and bearing (85) both sides of third wheel (90) are by packing ring (84), packing ring (87) axial location.
Trailing wheel and band-type brake part: rear-wheel hub (69) connects firmly by key (70) and rear axle (64), axial location is adjusted with nut (68), nut (71) in both sides, rear axle gear (73) is in interior fork (93) outside, connect firmly by key (78) and rear axle (64), bearing (72) and rear axle (64) that rear bearing box (74) blocks back-up ring (75) with left end endoporus shoulder the right connect, and by nut (80), packing ring (81), packing ring (82), packing ring (76) rear axle gear (73) axial location are fixed.Internally fork (93) is fixing mutually with rear axle (64), and brake wheel (61) connects firmly by key (63) and rear axle (64), with back-up ring (65), bearing (62), packing ring (66) axial location; Rear side housing (59) flush fit and the back fuse-box (57) that connect by bearing (62) and rear axle (64) connect, fix with back-up ring (58), back fuse-box (57) is fastening by bolt (55), nut (54) and flange (53), the connector (60) that flange (53) connects firmly by bolt (67) with back vent (91) again is fastening, and bonnet (79) is fastened on the bearing box of outer fork (92) with screw (83).
2, bicycle adjustable speed Cylindrical gear actuator according to claim 1, it is characterized in that: adopting three single spur wheels is gear (20), gear (90), gear (73) engaged transmission, and gear material nylon 6, module of gear 3, addendum coefficient 1, angular deflection are just revised.
3, bicycle adjustable speed Cylindrical gear actuator according to claim 1 is characterized in that: it is outer shroud that planetary gear bearing adopts with needle roller (38), planetary wheel (39), bore area, and planet wheel spindle (33) outside face is the needle bearing of interior ring.
4, bicycle adjustable speed Cylindrical gear actuator according to claim 1, it is characterized in that: the concrete structure that interior steel is moulded the final gear of dress system flywheel outward is: steel flywheel (17) is had outside thread, the wheel hub left end is the location cylindrical, or cylindrical not to be with outside thread all be to locate cylindrical; The wheel hub right side is the recessed tooth of rectangle denture clutch, the left side of plug screw (15) is a rectangle denture clutch double wedge, with plug screw (15) flywheel (17) is screwed in nylon 6 final geares (20) that right-hand member has knock hole, screw, use screw (18), gland (19) fastening again.The cylindrical of flywheel (17) can also be for there being the externally threaded form of location cylindrical; Final gear (20) gear and tooth hub also can be made into the dress system.
5, bicycle adjustable speed Cylindrical gear actuator according to claim 1 is characterized in that: the planetary gear mechanism in order to speed governing adopts i
b a HType, i
H a b=1/1.14-1/1.56, module of gear 2.5, addendum coefficient 1, angular deflection are just revised; Gear material: center gear (48), planetary wheel (39) are nylon 6; Internally toothed annulus (51) is 45.
6, bicycle adjustable speed Cylindrical gear actuator according to claim 1, it is characterized in that: used bearing is except that planetary gear bearing, and all the other are single-row radial ball bearing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 02273415 CN2547629Y (en) | 2002-06-12 | 2002-06-12 | Speed-changing cylindrical gear transmission for bicycle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN 02273415 CN2547629Y (en) | 2002-06-12 | 2002-06-12 | Speed-changing cylindrical gear transmission for bicycle |
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CN2547629Y true CN2547629Y (en) | 2003-04-30 |
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ID=33737892
Family Applications (1)
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CN 02273415 Expired - Fee Related CN2547629Y (en) | 2002-06-12 | 2002-06-12 | Speed-changing cylindrical gear transmission for bicycle |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101254745B (en) * | 2008-03-05 | 2010-06-09 | 西南大学 | Planetary conical plate type automatic transmission electric power driven hub |
CN108290616A (en) * | 2015-08-28 | 2018-07-17 | 先进技术有限公司 | For the bicycle drive between the sprocket carrier and wheel hub of bicycle and the rear axle equipped with transmission device and trailing wheel |
-
2002
- 2002-06-12 CN CN 02273415 patent/CN2547629Y/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101254745B (en) * | 2008-03-05 | 2010-06-09 | 西南大学 | Planetary conical plate type automatic transmission electric power driven hub |
CN108290616A (en) * | 2015-08-28 | 2018-07-17 | 先进技术有限公司 | For the bicycle drive between the sprocket carrier and wheel hub of bicycle and the rear axle equipped with transmission device and trailing wheel |
CN108290616B (en) * | 2015-08-28 | 2020-11-20 | 先进技术有限公司 | Transmission device between chain wheel bracket and hub of bicycle, rear wheel shaft and rear wheel |
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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 |