IT8922265A0 - Complesso di rocchetti dentati multivelocita' per biciclette - Google Patents
Complesso di rocchetti dentati multivelocita' per bicicletteInfo
- Publication number
- IT8922265A0 IT8922265A0 IT22265A IT2226589A IT8922265A0 IT 8922265 A0 IT8922265 A0 IT 8922265A0 IT 22265 A IT22265 A IT 22265A IT 2226589 A IT2226589 A IT 2226589A IT 8922265 A0 IT8922265 A0 IT 8922265A0
- Authority
- IT
- Italy
- Prior art keywords
- bicycles
- sprocket set
- speed sprocket
- speed
- sprocket
- 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
- 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
- B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
- B62M9/105—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like involving front sprocket chain-wheels engaged by the chain, belt or the like
-
- 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
- B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
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)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63281064A JPH02127185A (ja) | 1988-11-07 | 1988-11-07 | 自転車用多段スプロケット装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
IT8922265A0 true IT8922265A0 (it) | 1989-11-03 |
IT8922265A1 IT8922265A1 (it) | 1991-05-03 |
IT1237124B IT1237124B (it) | 1993-05-18 |
Family
ID=17633810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT02226589A IT1237124B (it) | 1988-11-07 | 1989-11-03 | Complesso di rocchetti dentati multivelocita' per biciclette. |
Country Status (5)
Country | Link |
---|---|
US (1) | US5073151A (it) |
JP (1) | JPH02127185A (it) |
DE (1) | DE3936921C2 (it) |
FR (1) | FR2638702B1 (it) |
IT (1) | IT1237124B (it) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2939274B2 (ja) * | 1989-09-12 | 1999-08-25 | 株式会社シマノ | 自転車用多段スプロケットホイール |
US5162022A (en) * | 1990-09-18 | 1992-11-10 | Maeda Industries, Ltd. | Multiple sprocket assembly for bicycle |
IT1270417B (it) * | 1993-06-03 | 1997-05-05 | Campagnolo Srl | Gruppo pignoni per biciclette |
DE4434752A1 (de) | 1994-09-29 | 1996-04-04 | Fichtel & Sachs Ag | Kettenschaltung, insbesondere für Fahrräder |
US5716297A (en) * | 1993-09-13 | 1998-02-10 | Fichtel & Sachs Ag | Derailleur arrangement for bicycles |
DE4330989A1 (de) * | 1993-09-13 | 1995-03-16 | Fichtel & Sachs Ag | Kettenschaltung, insbesondere für Fahrräder |
JP3509214B2 (ja) * | 1994-09-09 | 2004-03-22 | 株式会社シマノ | 自転車用チェーンホイール |
DE4445035C1 (de) * | 1994-12-16 | 1996-06-05 | Fichtel & Sachs Ag | Kettenschaltung |
US5876295A (en) * | 1996-01-23 | 1999-03-02 | Cloyes Gear And Products, Inc. | Roller chain drive system having improved noise characteristics |
DE19606667C2 (de) * | 1996-02-23 | 1999-10-14 | Sram De Gmbh | Kettenschaltung für Fahrräder |
US5921878A (en) * | 1996-07-03 | 1999-07-13 | Cloyes Gear And Products, Inc. | Roller chain drive system having improved noise characteristics |
US5976045A (en) * | 1996-07-25 | 1999-11-02 | Cloyes Gear And Products, Inc. | Random engagement roller chain sprocket having improved noise characteristics |
US6090003A (en) * | 1996-07-25 | 2000-07-18 | Cloyes Gear & Products, Inc. | Random engagement roller chain sprocket having improved noise characteristics |
US5921879A (en) * | 1996-07-25 | 1999-07-13 | Cloyes Gear And Products, Inc. | Random engagement roller chain sprocket with staged meshing and flank relief to provide improved noise characteristics |
US6761657B2 (en) | 1996-12-19 | 2004-07-13 | Cloyes Gear And Products, Inc. | Roller chain sprocket with added chordal pitch reduction |
US7416500B2 (en) * | 1996-12-19 | 2008-08-26 | Cloyes Gear And Products, Inc. | Random engagement roller chain sprocket and timing chain system including same |
US5733215A (en) * | 1997-06-23 | 1998-03-31 | Industrial Technology Research Institute | Multi-speed sprocket assembly of a bicycle |
US6293884B1 (en) | 1999-09-08 | 2001-09-25 | Chattin Cluster Gears, Inc. | Cluster sprockets for bicycle transmissions and other prime movers |
EP1235003A1 (en) * | 2001-02-23 | 2002-08-28 | Morse Tec Europe S.p.A. | Sprocket for a roller chain or bushing chain, with teeth having a different flank profile on the same sprocket |
DE10119590A1 (de) * | 2001-04-21 | 2002-10-24 | Sram De Gmbh | Kettenrad für Rollenketten |
US6923741B2 (en) * | 2002-08-30 | 2005-08-02 | Shimano Inc. | Top sprocket for a rear sprocket assembly and rear sprocket assembly for a bicycle |
US8096908B2 (en) * | 2004-12-14 | 2012-01-17 | Shimano, Inc. | Bicycle sprocket with a laterally projecting gear change tooth |
US8226511B2 (en) | 2005-01-08 | 2012-07-24 | Shimano, Inc. | Bicycle sprocket tooth with a shift assist radius greater than a reference tooth radius |
DE102006010498A1 (de) * | 2006-03-07 | 2007-09-13 | Sram Deutschland Gmbh | Mehrfachkettenradeinheit und Kettenschaltung, insbesondere für Fahrräder |
EP2108579A1 (en) * | 2008-04-10 | 2009-10-14 | CAMPAGNOLO S.r.l. | Toothed wheel and group of toothed wheels for a bicycle transmission system |
US9376165B2 (en) * | 2009-10-16 | 2016-06-28 | Shimano Inc. | Bicycle sprocket |
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 |
US10549816B2 (en) * | 2016-02-26 | 2020-02-04 | Shimano Inc. | Bicycle sprocket and bicycle sprocket assembly |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB475021A (en) * | 1937-06-15 | 1937-11-11 | Ervin Vantoch | Improvements in change speed gears for chain drives |
US3478614A (en) * | 1966-11-17 | 1969-11-18 | Shimano Industrial Co | Multistage sprocket wheel assembly for a bicycle of speed change type |
US4268259A (en) * | 1977-08-25 | 1981-05-19 | Shimano Industrial Company Limited | Multi-speed sprockets for a bicycle and the like |
JPS5528617A (en) * | 1978-08-21 | 1980-02-29 | Fujitsu Ltd | Drive system for transmission line |
JPS566698U (it) * | 1979-06-28 | 1981-01-21 | ||
JPS5810706Y2 (ja) * | 1979-10-11 | 1983-02-26 | 株式会社シマノ | 多段スプロケツト装置 |
DE2945271C2 (de) * | 1979-11-09 | 1983-10-20 | Alfred Thun & Co Gmbh, 5828 Ennepetal | Kettenradsatz für die Kettenschaltung eines Fahrrades |
US4519791A (en) * | 1982-09-03 | 1985-05-28 | Shimano Industrial Company Limited | Sprocket for a bicycle |
US4773893A (en) * | 1987-04-20 | 1988-09-27 | Te-Sheng Chang | Sprocket tooth speed varying sprocket assembly |
-
1988
- 1988-11-07 JP JP63281064A patent/JPH02127185A/ja active Pending
-
1989
- 1989-10-30 US US07/428,777 patent/US5073151A/en not_active Expired - Lifetime
- 1989-11-03 IT IT02226589A patent/IT1237124B/it active IP Right Grant
- 1989-11-06 FR FR8914520A patent/FR2638702B1/fr not_active Expired - Fee Related
- 1989-11-06 DE DE3936921A patent/DE3936921C2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE3936921A1 (de) | 1990-05-10 |
DE3936921C2 (de) | 1994-03-17 |
FR2638702A1 (fr) | 1990-05-11 |
IT1237124B (it) | 1993-05-18 |
JPH02127185A (ja) | 1990-05-15 |
IT8922265A1 (it) | 1991-05-03 |
US5073151A (en) | 1991-12-17 |
FR2638702B1 (fr) | 1994-02-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19971129 |