DE69503690D1 - Pulley unit for pedal vehicles with continuously variable transmission, provided with an automatic device to facilitate starting - Google Patents
Pulley unit for pedal vehicles with continuously variable transmission, provided with an automatic device to facilitate startingInfo
- Publication number
- DE69503690D1 DE69503690D1 DE69503690T DE69503690T DE69503690D1 DE 69503690 D1 DE69503690 D1 DE 69503690D1 DE 69503690 T DE69503690 T DE 69503690T DE 69503690 T DE69503690 T DE 69503690T DE 69503690 D1 DE69503690 D1 DE 69503690D1
- Authority
- DE
- Germany
- Prior art keywords
- pulley unit
- automatic device
- drive pulley
- gear
- half pulleys
- Prior art date
- 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.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N3/00—Other muscle-operated starting apparatus
- F02N3/04—Other muscle-operated starting apparatus having foot-actuated levers
Abstract
In pedal vehicles with stepless transmission, a drive pulley unit comprising an automatic device for facilitating starting, in which the drive pulley comprises a pair of half pulleys (12, 13) mounted on a shaft (11), the first (12) being axially fixed and the second (13) being axially movable relative to the first, between the two half pulleys there being positioned a drive belt (14) engaging against walls of the two half pulleys (12, 13), which depending on their distance apart determine low gear or high gear, associated with the drive pulley unit there being provided a gear position regulator consisting of a counteracting element (18) associated with the movable second half pulley (13) via radially movable rolling bodies (24) inserted in respective housings (19, 37), wherein to the counteracting element (18) there are connected radially oscillable centrifugal masses (20) which are associated with an elastic element (31) and interact with the rolling bodies (24) at low speeds to cause the half pulleys (12, 13) to assume a position of maximum approach, determining high gear. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI940705A IT1270031B (en) | 1994-04-14 | 1994-04-14 | DRIVE PULLEY GROUP IN PEDAL VEHICLES WITH CONTINUOUS SPEED CHANGE WITH AUTOMATIC DEVICE TO FACILITATE STARTING |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69503690D1 true DE69503690D1 (en) | 1998-09-03 |
DE69503690T2 DE69503690T2 (en) | 1999-03-18 |
Family
ID=11368578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69503690T Expired - Fee Related DE69503690T2 (en) | 1994-04-14 | 1995-03-24 | Pulley unit for pedal vehicles with continuously variable transmission, provided with an automatic device to facilitate starting |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0677657B1 (en) |
CN (1) | CN1057737C (en) |
AT (1) | ATE169089T1 (en) |
DE (1) | DE69503690T2 (en) |
ES (1) | ES2124491T3 (en) |
IT (1) | IT1270031B (en) |
TW (1) | TW254902B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3023892B1 (en) * | 2014-07-17 | 2017-12-01 | Skf Ab | PULLEY DEVICE FOR CHAIN OR BELT |
TWI570339B (en) * | 2015-08-13 | 2017-02-11 | 三陽工業股份有限公司 | Multi-mode Continuously Variable Transmission Mechanism |
DE102017205514A1 (en) * | 2017-03-31 | 2018-10-04 | Robert Bosch Gmbh | Pneumatically adjustable CVT transmission |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL105358C (en) * | 1900-01-01 | |||
DE1001901B (en) * | 1955-03-22 | 1957-01-31 | Suedd Ilo Werk G M B H | Speed-dependent regulating, continuously variable V-belt transmission, especially for motor vehicles |
SE443426B (en) * | 1983-07-25 | 1986-02-24 | Dahlmans Klippo Ab | REMOTE TRANSMISSION FOR A MOTOR POWER Mower |
US4941863A (en) * | 1988-03-28 | 1990-07-17 | Kubota Ltd. | Stepless speed change mechanism in belt transmission device |
DE4121781A1 (en) * | 1991-07-01 | 1993-01-21 | Schubert & Salzer Maschinen | GEARBOX FOR TEXTILE MACHINES, IN PARTICULAR TO PREVENT IMAGE WINDINGS WHEN FINDING THREADS |
-
1994
- 1994-04-14 IT ITMI940705A patent/IT1270031B/en active IP Right Grant
- 1994-06-10 TW TW083105266A patent/TW254902B/en active
-
1995
- 1995-03-24 DE DE69503690T patent/DE69503690T2/en not_active Expired - Fee Related
- 1995-03-24 AT AT95200741T patent/ATE169089T1/en not_active IP Right Cessation
- 1995-03-24 EP EP95200741A patent/EP0677657B1/en not_active Expired - Lifetime
- 1995-03-24 ES ES95200741T patent/ES2124491T3/en not_active Expired - Lifetime
- 1995-04-13 CN CN95104217A patent/CN1057737C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0677657A1 (en) | 1995-10-18 |
CN1057737C (en) | 2000-10-25 |
CN1121019A (en) | 1996-04-24 |
ES2124491T3 (en) | 1999-02-01 |
EP0677657B1 (en) | 1998-07-29 |
DE69503690T2 (en) | 1999-03-18 |
ATE169089T1 (en) | 1998-08-15 |
TW254902B (en) | 1995-08-21 |
ITMI940705A0 (en) | 1994-04-14 |
ITMI940705A1 (en) | 1995-10-14 |
IT1270031B (en) | 1997-04-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: PIAGGIO & C. S.P.A., PONTEDERA, PISA, IT |
|
8327 | Change in the person/name/address of the patent owner |
Owner name: MOD S.P.A., SONDRIO, IT |
|
8327 | Change in the person/name/address of the patent owner |
Owner name: PIAGGIO & C. S.P.A., PONTEDERA, IT |
|
8339 | Ceased/non-payment of the annual fee |