US3744345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Change gear transmission for motor vehicles
Assignee: Kloeckner Humboldt Deutz AG
•
Filing: 1972-04-12
•
Granted: 1973-07-10
•
Expires: 1992-04-12
Abstract
Abstract A change gear transmission comprising groups of gears for motor vehicles, especially tractors, in which between a gear pair driven by the input shaft of an auxiliary transmission or driving the output portion of the auxiliary transmission, on one hand, and the gear pair, on the other hand, there is arranged an additional gear pair which comprises a gear freely rotatable on the counter shaft of a main transmission group and adapted selectively to be coupled to the counter shaft, a gear pair being provided which is adapted selectively directly or indirectly to be coupled to a coaxial gear which forms a part of the velocity range of the main transmission group and pertains to the auxiliary transmission.
Inventors
- 👤 H Keienburg
- 👤 W Jansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:17
CPC Classifications
F; F16; F16H; F16H37/00; F16H37/02; F16H37/04; F16H37/042; F16H37/043; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19167
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
244 words
In a multiple range change gear power transmitting device; an input shaft and an output shaft and a countershaft disposed on a pair of parallel axes; a main transmission and an auxiliary transmission in series between said input and output shafts, said main transmission comprising pairs of meshing gears and means for making the gears selectively effective, said auxiliary transmission comprising a first pair of meshing gears, one gear of said first pair being fixed to one of said input and output shafts, a further pair of meshing gears common to both transmissions, an additional pair of meshing gears between said first pair and said further pair, said pairs of gears being axially distributed and a gear of each said pair being disposed on each of said axes, one gear of said further pair being coaxial with and fixed to said countershaft, said additional pair of gears including one gear which is coaxial with and rotatable on said countershaft and another gear which is coaxial with the other gear of said further pair, said other gear of said additional pair being non-rotatably connected to the gear of said first pair which is coaxial therewith, control means selectively operable for coupling said countershaft to either one gear of said first pair which is coaxial therewith or said one gear of said additional pair, and means selectively operable for coupling said other gear of said additional pair to the said other gear of said further pair.
Claim 2
Dependent Claim
244 words
In a multiple range change gear power transmitting device; an input shaft and an output shaft and a countershaft disposed on a pair of parallel axes; a main transmission and an auxiliary transmission in series between said input and output shafts, said main transmission comprising pairs of meshing gears and means for making the gears selectively effective, said auxiliary transmission comprising a first pair of meshing gears, one gear of said first pair being fixed to one of said input and output shafts, a further pair of meshing gears common to both transmissions, an additional pair of meshing gears between said first pair and said further pair, said pairs of gears being axially distributed and a gear of each said pair being disposed on each of said axes, one gear of said further pair being coaxial with and fixed to said countershaft, said additional pair of gears including one gear which is coaxial with and rotatable on said countershaft and another gear which is coaxial with the other gear of said further pair, said other gear of said additional pair being non-rotatably connected to the gear of said first pair which is coaxial therewith, control means selectively operable for coupling said countershaft to either one gear of said first pair which is coaxial therewith or said one gear of said additional pair, and means selectively operable for coupling said other gear of said additional pair to the said other gear of said further pair.
Claim 3
Dependent Claim
58 words
A power transmitting device according to claim 1 in which said auxiliary transmission precedes said main transmission and said one gear of said first gear pair of said auxiliary transmission is fixed to said input shaft, the other gear of said first gear pair being coaxial with and fixed to said other gear of said additional gear pair.
Claim 4
Dependent Claim
75 words
A power transmitting device according to claim 1 in which said auxiliary transmission precedes said main transmission and said one gear of said first gear pair of said auxiliary transmission is fixed to said input shaft, the other gear of said first gear pair being coaxial with said countershaft, said control means controlling the coupling of said countershaft to said other gear of said first pair and to said one gear of said additional pair.
Claim 5
Dependent Claim
58 words
A power transmitting device according to claim 1 in which said auxiliary transmission follows said main transmission and said one gear of said first gear pair of said auxiliary transmission is fixed to said output shaft while the other gear of said first pair is coaxial with and nonrotatably connected to said other gear of said additional pair.
Claim 6
Dependent Claim
111 words
A power transmitting device according to claim 1 in which said auxiliary transmission follows said main transmission and said one gear of said first gear pair of said auxiliary transmission is fixed to said output shaft while the other gear of said first pair is coaxial with and rotatable relative to said countershaft, said additional pair comprising a gear rotatable on each of said output shaft and countershaft, said control means being selectively operable for coupling said countershaft to said one gear of said additional pair or the othEr gear of said first pair, and means selectively operable for connecting said output shaft to said other gear of said further pair.
Claim 7
Dependent Claim
90 words
A power transmitting device according to claim 1 in which said auxiliary transmission precedes said main transmission and said one gear of said first gear pair is fixed to said input shaft, the velocity range provided by said first pair of gears of said auxiliary transmission together with the gear pairs of said main transmission overlapping the velocity range provided by said additional gear pair together with the gear pairs of said main transmission by about one velocity step of the main transmission as provided by the gear pairs thereof.
Claim 8
Dependent Claim
90 words
A power transmitting device according to claim 1 in which said auxiliary transmission precedes said main transmission and said one gear of said first gear pair is fixed to said input shaft, the velocity range provided by said additional pair of gears of said auxiliary transmission together with the gear pairs of said main transmission overlapping the velocity range provided by said further gear pair together with the gear pairs of said main transmission by about one velocity step of the main transmission as provided by the gear pairs thereof.
Claim 9
Dependent Claim
69 words
A power transmitting device according to claim 1 in which said auxiliary transmission precedes said main transmission and said one gear of said first gear pair is fixed to said input shaft, the drive ratio provided by said one gear pair together with said further gear pair being about 1:2.1 while the drive ratio provided by said one gear pair together with said additional gear pair is about 1:4.5.
Claim 10
Dependent Claim
81 words
A power transmitting device according to claim 1 in which said auxiliary transmission precedes said main transmission and said one gear of said first gear pair is fixed to said input shaft, the said control means for coupling said countershaft to the gear of said first pair which is coaxial therewith and for coupling said countershaft to said one gear of said additional pair is so constructed that when either gear is coupled to the countershaft the other is uncoupled therefrom.
Claim 11
Dependent Claim
137 words
A power transmitting device according to claim 1 in which said auxiliary transmission precedes said main transmission and said one gear of said first gear pair is fixed to said input shaft, the said other gear of said further pair being coaxial with said output shaft, said other gear of said additional pair also being coaxial with said output shaft and fixed to the other gear of said first pair, said means for coupling the said other gear of said further pair to said other gear of said additional pair comprising bolt elements extending axially through said other gear of said additional pair and reciprocable to and from engagement with said other gear of said further pair, and an actuating ring connected to said bolts and disposed between said first gear pair and said additional gear pair.
Claim 12
Dependent Claim
74 words
A power transmitting device according to claim 1 in which said auxiliary transmission precedes said main transmission and said one gear of said first gear pair is fixed to said input shaft, said control means for coupling said countershaft to said one gear of said additional pair and to the other gear of said first pair being operable to permit the coupling of said countershaft to one only of the gears at a time.
Claim 13
Dependent Claim
124 words
A power transmitting device according to claim 1 in which said auxiliary transmission precedes said main transmission and said one gear of said first gear pair is fixed to said input shaft, said other gear of said further pair being rotatable on said output shaft and coaxial with said input shaft, said other gear of said additional pair being fixed to said one gear of said first pair, said means for coupling said other gears together comprising bolts extending axially through said other gear of said additional pair and reciprocable therein so as to be engageable with said other gear of said further pair, and a control ring connected to said bolts and disposEd between said first gear pair and said additional gear pair.
Claim 14
Dependent Claim
50 words
A power transmitting device according to claim 1 in which said auxiliary transmission precedes said main transmission and said one gear of said first gear pair is fixed to said input shaft, and selectively engageable reversing gearing interposed between said input shaft and a gear of said further gear pair.
Claim 15
Dependent Claim
84 words
A power transmitting device according to claim 1 in which said auxiliary transmission follows said main transmission and said one gear of said first gear pair is fixed to said output shaft, the velocity range provided by said first gear pair together with the gear pairs of said main transmission and the velocity range provided by said additional gear pair together with the gear pairs of said main transmission overlapping each other by the amount of about one velocity range of the main transmission.
Claim 16
Dependent Claim
84 words
A power transmitting device according to claim 1 in which said auxiliary transmission follows said main transmission and said one gear of said first gear pair is fixed to said output shaft, the velocity range provided by said further gear pair together with the gear pairs of said main transmission and the velocity range provided by said additional gear pair together with the gear pairs of said main transmission overlapping each other by the amount of about one velocity range of the main transmission.
Claim 17
Dependent Claim
67 words
A power transmitting device according to claim 1 in which said auxiliary transmission follows said main transmission and said one gear of said first gear pair is fixed to said output shaft, the transmission ratio of said first gear pair together with said further gear pair being about 1:2.1 and the transmission ratio of said first gear pair together with said additional gear pair being about 1:4.5.
Claim 18
Dependent Claim
71 words
A power transmitting device according to claim 1 in which said auxiliary transmission follows said main transmission and said one gear of said first gear pair is fixed to said output shaft, said countershaft being coaxial with said output shaft whereby said control means is operable to couple said countershaft to said one gear of said additional pair or to said output shaft via said one gear of said first pair.
Claim 19
Dependent Claim
113 words
A power transmitting device according to claim 1 in which said auxiliary transmission follows said main transmission and said one gear of said first gear pair is fixed to said output shaft, said other gear of said further gear pair being coaxial with said input shaft, said means for coupling said other gear of said further gear pair to said other gear of said additional gear pair comprising bolts reciprocable axially in said other gear of said additional gear pair to and from engagement with said other gear of said further gear pair, and an actuating ring connected to said bolts and disposed between said additional gear pair and said first gear pair.
Claim 20
Dependent Claim
71 words
A power transmitting device according to claim 1 in which said auxiliary transmission follows said main transmission and said one gear of said first gear pair is fixed to said output shaft, the other gear of said first pair being coaxial with said countershaft and said control means controlling the coupling of said countershaft to said one gear of said additional pair and to said other gear of said first pair.
Claim 21
Dependent Claim
108 words
A power transmitting device according to claim 1 in which said auxiliary transmission follows said main transmission and said one gear of said first gear pair is fixed to said output shaft, said other gear of said additional pair being fixed to said output shaft, said means for coupling said other gear of said additional pair to said other gear of said further pair comprising bolts reciprocable axially in said other gear of said additional pair to and from engagement with said other gear of said further pair, and an actuating ring connected to said bolts and disposed between said first gear pair and said additional gear pair.
Claim 22
Dependent Claim
54 words
A power transmitting device according to claim 1 in which said auxiliarY transmission follows said main transmission and said one gear of said first gear pair is fixed to said output shaft, and selectively engageable reversing gearing interposed between a gear of said first gear pair and a gear of said further gear pair.
Claim 23
Dependent Claim
48 words
A power transmitting device according to claim 1 which includes means for effecting driving connection between the one of said input shaft and output shaft not connected to a gear of said first pair and at least one of said countershaft and a gear of said further pair.
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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |