IT1148620B - Trasmissione a rapporto variabile,in particolare per biciclette - Google Patents
Trasmissione a rapporto variabile,in particolare per bicicletteInfo
- Publication number
- IT1148620B IT1148620B IT49253/82A IT4925382A IT1148620B IT 1148620 B IT1148620 B IT 1148620B IT 49253/82 A IT49253/82 A IT 49253/82A IT 4925382 A IT4925382 A IT 4925382A IT 1148620 B IT1148620 B IT 1148620B
- Authority
- IT
- Italy
- Prior art keywords
- bicycles
- variable ratio
- ratio transmission
- transmission
- variable
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
- B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
- B62M9/08—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving eccentrically- mounted or elliptically-shaped driving or driven wheel; with expansible driving or driven wheel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
- Transmissions By Endless Flexible Members (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US31050681A | 1981-10-13 | 1981-10-13 | |
US06/387,618 US4493678A (en) | 1981-10-13 | 1982-06-11 | Expandible sprocket |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8249253A0 IT8249253A0 (it) | 1982-10-12 |
IT1148620B true IT1148620B (it) | 1986-12-03 |
Family
ID=26977440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT49253/82A IT1148620B (it) | 1981-10-13 | 1982-10-12 | Trasmissione a rapporto variabile,in particolare per biciclette |
Country Status (10)
Country | Link |
---|---|
US (1) | US4493678A (it) |
EP (1) | EP0091470A1 (it) |
KR (1) | KR840001912A (it) |
AU (1) | AU554899B2 (it) |
BR (1) | BR8207922A (it) |
CA (1) | CA1199821A (it) |
DK (1) | DK266183A (it) |
ES (1) | ES516428A0 (it) |
IT (1) | IT1148620B (it) |
WO (1) | WO1983001424A1 (it) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4717369A (en) * | 1981-10-13 | 1988-01-05 | Royce Husted | Incrementally variable transmission |
US4810235A (en) * | 1981-10-13 | 1989-03-07 | Samuel Shiber | Variable transmission with an integral shifter |
US4645475A (en) * | 1981-10-13 | 1987-02-24 | Royce H. Husted | Incrementally variable bicycle transmission |
AU1150683A (en) * | 1981-10-26 | 1984-07-17 | Walker, Harold L. | Automatic variable speed transmission |
DE3318278A1 (de) * | 1983-05-17 | 1984-11-22 | Frank 1000 Berlin Poddig | Regelbarer kettenantrieb |
EP0185799B1 (de) * | 1984-12-28 | 1989-03-15 | Dürkopp System Technik Gmbh | Automatisches Getriebe |
CS264058B1 (en) * | 1986-05-16 | 1989-05-12 | Josef Kovar | Variable transmission |
US4740190A (en) * | 1987-01-29 | 1988-04-26 | University Of Florida | Variable ratio bicycle chain drive |
US4952196A (en) * | 1987-10-21 | 1990-08-28 | Autra-Bike Co., Inc. | Variable diameter sprocket assembly |
US4850939A (en) * | 1987-10-21 | 1989-07-25 | Autra-Bike Co., Inc. | Variable diameter sprocket assembly |
US4787879A (en) * | 1987-11-02 | 1988-11-29 | Exeter Granddiorite Trust | Fifteen speed variable radius bicycle transmission |
US4892506A (en) * | 1987-12-21 | 1990-01-09 | Maz Wen | Synergetic speed-variating means as eccentrically operated |
US4976658A (en) * | 1989-11-03 | 1990-12-11 | Hood James E | Variable speed transmissions |
US6332852B1 (en) | 2000-05-30 | 2001-12-25 | 3561020 Canada Inc. | Variable ratio drive system |
US6572500B2 (en) * | 2000-06-30 | 2003-06-03 | Shimano Inc. | Bicycle sprocket with chain support projections |
KR100367198B1 (ko) * | 2000-08-24 | 2003-01-09 | 조치룡 | 자전거의 변속장치 |
US20040097307A1 (en) | 2000-12-12 | 2004-05-20 | Graeme Stafford Murray | Drive transmission apparatus |
FR2818952B1 (fr) * | 2000-12-29 | 2003-04-25 | Mavic Sa | Plateau d'entrainement extensible pour l'ensemble de transmission d'une bicyclette |
US6749531B2 (en) * | 2002-10-15 | 2004-06-15 | Novastar Technology, Inc. | Multi-speed gear system for a chain transmission device of a bicycle |
US20050192136A1 (en) * | 2004-02-27 | 2005-09-01 | John Allard | Variable diameter sprocket |
US20070037643A1 (en) * | 2005-08-09 | 2007-02-15 | Briesmeister Andrew E | Variable circumference sprocket |
US9347531B2 (en) * | 2008-04-08 | 2016-05-24 | Yoon Kyu Cho | Belt-type continuously variable transmission |
US20110230286A1 (en) * | 2010-03-17 | 2011-09-22 | Eli Cohen | Variable Drive Transmission |
US9033833B2 (en) | 2011-01-28 | 2015-05-19 | Paha Designs, Llc | Gear transmission and derailleur system |
US10207772B2 (en) | 2011-01-28 | 2019-02-19 | Paha Designs, Llc | Gear transmission and derailleur system |
US9327792B2 (en) | 2011-01-28 | 2016-05-03 | Paha Designs, Llc | Gear transmission and derailleur system |
WO2012145824A1 (en) * | 2011-04-26 | 2012-11-01 | 1783590 Ontario Ltd. D/B/A Inmotive | Key pulley segment features, segment stack configuration, and cam and roller design and actuation in a synchronized segmentally interchanging pulley transmission system |
US8840127B2 (en) | 2012-01-04 | 2014-09-23 | Robert Musgrove | Spiral cone pulley reciprocal pedal drive system and methods |
DE102014003749A1 (de) * | 2014-03-12 | 2015-09-17 | Alexander Degtjarew | Kettengetriebe für das Fahrzeug mit dem geänderten Übertragungsverhältnis das von der Belastung abhängt |
US9725132B2 (en) * | 2014-03-26 | 2017-08-08 | Shimano Inc. | Bicycle crank assembly |
ITUB20154124A1 (it) * | 2015-10-02 | 2017-04-02 | Yves Joseph Alfred Morin | Trasmissione a catena, particolarmente per biciclette, con variazione continua del rapporto di trasmissione. |
TWI601663B (zh) * | 2016-04-21 | 2017-10-11 | 變速裝置 | |
TWI619897B (zh) * | 2016-08-30 | 2018-04-01 | 永德 謝 | 自動變速傳動裝置 |
CN107128432A (zh) * | 2017-06-16 | 2017-09-05 | 晋中学院 | 自行车无级变速器 |
US11639749B1 (en) * | 2019-05-21 | 2023-05-02 | Sunman Engineering, Inc. | Gear set |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR961243A (it) * | 1950-05-09 | |||
US524830A (en) * | 1894-08-21 | Sprocket-wheel | ||
US593895A (en) * | 1897-11-16 | Wili-ielm jasper | ||
US742497A (en) * | 1903-03-11 | 1903-10-27 | Lewis G Rowand | Expansible pulley. |
GB453712A (en) * | 1935-03-28 | 1936-09-17 | Walter Neale | Improvements in and relating to variable speed gear mechanism for cycles and the like |
US2421368A (en) * | 1941-07-17 | 1947-06-03 | Aubert Emile Henri | Wheel of variable diameter |
GB1320501A (en) * | 1969-06-20 | 1973-06-13 | Triplite Ltd | Adjustable driving wheels |
JPS4980736A (it) * | 1972-12-07 | 1974-08-03 | ||
US3850044A (en) * | 1973-05-10 | 1974-11-26 | D Hagen | Bicycle transmission |
US3850045A (en) * | 1973-07-18 | 1974-11-26 | D Hagen | Expansible sprocket for bicycles |
US3867851A (en) * | 1973-08-23 | 1975-02-25 | Hagen Int Inc | Radially expansible sprocket with rotatable teeth segments |
US3938403A (en) * | 1974-02-27 | 1976-02-17 | Bowmar Instrument Corporation | Multiratio power transmitting device |
US3995508A (en) * | 1975-03-31 | 1976-12-07 | Mesur-Matic Electronics Corporation | Automatic bicycle transmission |
US4304449A (en) * | 1977-04-26 | 1981-12-08 | L. B. (Plastics) Limited | Drawers |
US4129044A (en) * | 1977-05-19 | 1978-12-12 | Erickson Marlo W V | Variable gear ratio chain drive system for bicycles |
GB2005778B (en) * | 1977-08-17 | 1982-06-30 | Shimano Industrial Co | Sprocket and use thereof on bicycle |
US4268259A (en) * | 1977-08-25 | 1981-05-19 | Shimano Industrial Company Limited | Multi-speed sprockets for a bicycle and the like |
WO1979000522A1 (en) * | 1978-01-18 | 1979-08-09 | R Williams | Drive system |
JPS5819996Y2 (ja) * | 1978-07-07 | 1983-04-25 | 株式会社シマノ | 自転車用スプロケット |
DE2846279C2 (de) * | 1978-10-24 | 1982-04-15 | Aktiebolaget Iro, Ulricehamn | Riemenscheibe |
US4260386A (en) * | 1979-05-16 | 1981-04-07 | Frohardt Steven P | Variable speed drive |
GB2062142A (en) * | 1979-10-29 | 1981-05-20 | Deal M | Variable diameter transmission wheel |
DE3107255A1 (de) * | 1981-02-26 | 1982-09-02 | Hans-Joachim 5060 Bergisch Gladbach Müller | "ketten- bzw. riementrieb" |
-
1982
- 1982-06-11 US US06/387,618 patent/US4493678A/en not_active Expired - Fee Related
- 1982-10-01 WO PCT/US1982/001422 patent/WO1983001424A1/en not_active Application Discontinuation
- 1982-10-01 EP EP82903222A patent/EP0091470A1/en not_active Ceased
- 1982-10-01 AU AU90506/82A patent/AU554899B2/en not_active Ceased
- 1982-10-01 BR BR8207922A patent/BR8207922A/pt not_active IP Right Cessation
- 1982-10-11 ES ES516428A patent/ES516428A0/es active Granted
- 1982-10-12 KR KR1019820004587A patent/KR840001912A/ko unknown
- 1982-10-12 CA CA000413260A patent/CA1199821A/en not_active Expired
- 1982-10-12 IT IT49253/82A patent/IT1148620B/it active
-
1983
- 1983-06-10 DK DK266183A patent/DK266183A/da not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US4493678A (en) | 1985-01-15 |
EP0091470A1 (en) | 1983-10-19 |
BR8207922A (pt) | 1983-09-20 |
ES8401396A1 (es) | 1983-12-16 |
AU9050682A (en) | 1983-05-05 |
DK266183D0 (da) | 1983-06-10 |
IT8249253A0 (it) | 1982-10-12 |
CA1199821A (en) | 1986-01-28 |
AU554899B2 (en) | 1986-09-04 |
ES516428A0 (es) | 1983-12-16 |
KR840001912A (ko) | 1984-06-07 |
WO1983001424A1 (en) | 1983-04-28 |
DK266183A (da) | 1983-06-10 |
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