US3654819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed change transmission
Assignee: Index Werke GmbH and Co KG Hahn and Tessky
•
Filing: 1970-09-02
•
Granted: 1972-04-11
•
Expires: 1990-09-02
Abstract
Abstract A speed change transmission including four transmission shafts, six transmission gears, six clutch means, and change gears, is arranged in such a manner that at the output shaft, four reversable different speeds are obtained.
Inventors
- 👤 Helmut Link
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:10
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/02; F16H3/08; F16H3/087; F16H3/093; B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/12; B23Q5/14; B23Q5/142; B23Q2705/00; B23Q2705/02; B23Q2705/06; B23Q2705/062; B23Q2705/064; F16H2003/0807; F16H2003/0811; F16H2200/00; F16H2200/003; F16H2200/0043; F16H2200/0082; F16H2200/0091; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19386; Y10T74/19405
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
249 words
Speed change transmission comprising first, second, third and fourth transmission shafts, said first transmission shaft being the input shaft, and said fourth transmission shaft being operable at different speeds; change gears detachably fixed on said first, second, and third transmission shafts and including meshing pairs of change gears; six transmission gears including first and fourth transmission gears rotatably mounted on said second transmission shaft, second and fifth transmission gears rotatably mounted on said third transmission shaft, and third and sixth transmission gears rotatably mounted on said fourth transmission shaft, said first transmission gear having an operative connection with said second transmission gear for driving the same, said second transmission gear meshing with said third transmission gear, and said fourth and fifth transmission gears meshing with said sixth transmission gear, said first and second transmission gears having the same number of teeth, and said fourth and fifth transmission gears having the same number of teeth; and six clutch means including first, second, and third clutch means for selectively coupling said first transmission gear with said second transmission shaft, said second transmission gear with said third transmission shaft, and said third transmission gear with said fourth transmission shaft, respectively, fourth and fifth clutch means for selectively coupling said first and said fourth transmission gears, and said second and said fifth transmission gears, respectively, and sixth clutch means for selectively coupling said sixth transmission gear with said fourth transmission shaft whereby said fourth transmission shaft is operable at four reversable different speeds.
Claim 2
Dependent Claim
249 words
Speed change transmission comprising first, second, third and fourth transmission shafts, said first transmission shaft being the input shaft, and said fourth transmission shaft being operable at different speeds; change gears detachably fixed on said first, second, and third transmission shafts and including meshing pairs of change gears; six transmission gears including first and fourth transmission gears rotatably mounted on said second transmission shaft, second and fifth transmission gears rotatably mounted on said third transmission shaft, and third and sixth transmission gears rotatably mounted on said fourth transmission shaft, said first transmission gear having an operative connection with said second transmission gear for driving the same, said second transmission gear meshing with said third transmission gear, and said fourth and fifth transmission gears meshing with said sixth transmission gear, said first and second transmission gears having the same number of teeth, and said fourth and fifth transmission gears having the same number of teeth; and six clutch means including first, second, and third clutch means for selectively coupling said first transmission gear with said second transmission shaft, said second transmission gear with said third transmission shaft, and said third transmission gear with said fourth transmission shaft, respectively, fourth and fifth clutch means for selectively coupling said first and said fourth transmission gears, and said second and said fifth transmission gears, respectively, and sixth clutch means for selectively coupling said sixth transmission gear with said fourth transmission shaft whereby said fourth transmission shaft is operable at four reversable different speeds.
Claim 3
Dependent Claim
31 words
The transmission of claim 1, wherein said operative connectiOn comprises in part an intermediate gear meshing with said first and third transmission gears; and means supporting said intermediate gear for rotation.
Claim 4
Dependent Claim
58 words
The transmission of claim 1 wherein said second transmission shaft, said first and fourth transmission gears, and said first and fourth clutch means form a first unit; and wherein said third transmission shaft, said second and fifth transmission gears, and said second and fifth clutch means form a second unit having the same shape as said first unit.
Claim 5
Dependent Claim
29 words
The transmission of claim 1 wherein said transmission shafts are parallel; and wherein said first transmission shaft is spaced the same distance from said second and third transmission shafts.
Claim 6
Dependent Claim
27 words
The transmission of claim 1 comprising an output shaft; and first and second meshing gears respectively fixed to said fourth transmission shaft and to said output shaft.
Claim 7
Dependent Claim
27 words
The transmission of claim 1 wherein at least said first, second third, and sixth clutch means are disk clutches operable during rotation of said first transmission shaft.
Claim 8
Dependent Claim
19 words
The transmission of claim 1 wherein said fourth and fifth clutch means include means for manually shifting the same.
Claim 9
Dependent Claim
65 words
The transmission of claim 1 wherein said fourth transmission shaft is braked to a stop when said third and sixth clutch means connect said third and sixth transmission gears with said fourth transmission shaft, while said fourth clutch means connects said first and fourth transmission gears, or said fifth clutch means connects said second and fifth transmission gears during rotation of said first transmission shaft.
Claim 10
Dependent Claim
55 words
The transmission of claim 1 comprising a supporting frame including bearing means for rotatably mounting said transmission shafts and including partitioning means; wherein said first, second, and third transmission shafts have portions projecting in the same direction from one side of said partitioning means; and wherein said change gears are mounted on said projecting portions.
Claim 11
Dependent Claim
17 words
The transmission of claim 1 wherein only one change gear is secured to said first transmission shaft.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |