Patent US3905250A successfully refreshed from Google Patents.
US3905250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear assemblies
Assignee: Maag Gear Wheel and Machine Co Ltd
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Filing: 1974-08-02
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Granted: 1975-09-16
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Expires: 1994-08-02
Abstract
Abstract A gear assembly has the drive from a driving shaft transmitted to a driven shaft through two parallel intermediate shafts. To adjust the position of the driving shaft automatically for equalisation of the load distribution between the intermediate shafts and driving shaft is mounted in radial support bearings having elements permitting pivoting of the shaft about an axis parallel to the shaft axis, said pivoting axis lying on a line through the shaft axis and parallel to the resultant of equal gear tooth forces applied by respective gearwheels on the intermediate shafts to their meshing gearwheel on the driving shaft.
Inventors
- 👤 Hans Sigg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:53
CPC Classifications
F; F16; F16C; F16C17/00; F16C17/02; F16C17/03; B; B63; B63H; B63H23/00; B63H23/02; B63H23/10; B63H23/12; F16H; F16H1/00; F16H1/02; F16H1/20; F16H1/22; F16H57/00; F16H57/02; F16H57/021; F16C2361/00; F16C2361/61; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19051; Y10T74/19056; Y10T74/19126; Y10T74/19135; Y10T74/19144; Y10T74/19628
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
196 words
A driving gear assembly comprising, in combination, a driving shaft, a driving gearwheel on said shaft, at least two intermediate shafts arranged in parallel with their axes in a common plane, the driving shaft axis being offset to one side of said common plane and respective gearwheels on said intermediate shafts meshing with the driving gearwheel, radial support bearing means for said driving shaft comprising means permitting displacement of the shaft axis substantially perpendicularly to the resultant force of two equal forces applied to the driving shaft gearwheel by the intermediate shaft gearwheels, said means permitting displacement comprising at least one element pivotally mounted in said bearing means and on which the driving shaft is supported to be pivotable about an axis parallel to the shaft axis in response to relative changes of the forces acting between the driving gearwheel and the intermediate shaft gearwheels for automatic adjustment of the position of the shaft in a direction transverse to its axis to equalise the load distribution between said intermediate shafts, said pivoting axis for the driving shaft being disposed on a line passing through the shaft axis and parallel to the direction of said resultant force.
Claim 2
Dependent Claim
196 words
A driving gear assembly comprising, in combination, a driving shaft, a driving gearwheel on said shaft, at least two intermediate shafts arranged in parallel with their axes in a common plane, the driving shaft axis being offset to one side of said common plane and respective gearwheels on said intermediate shafts meshing with the driving gearwheel, radial support bearing means for said driving shaft comprising means permitting displacement of the shaft axis substantially perpendicularly to the resultant force of two equal forces applied to the driving shaft gearwheel by the intermediate shaft gearwheels, said means permitting displacement comprising at least one element pivotally mounted in said bearing means and on which the driving shaft is supported to be pivotable about an axis parallel to the shaft axis in response to relative changes of the forces acting between the driving gearwheel and the intermediate shaft gearwheels for automatic adjustment of the position of the shaft in a direction transverse to its axis to equalise the load distribution between said intermediate shafts, said pivoting axis for the driving shaft being disposed on a line passing through the shaft axis and parallel to the direction of said resultant force.
Claim 3
Dependent Claim
54 words
A driving gear assembly according to claim 1 wherein said radial support bearing means are formed as tilting segment bearings for said pivoting movement of the driving shaft and the tilting segments of said bearings provide respective pivotally mounted elements on which the driving shaft is supported to be pivotable in the manner aforesaid.
Claim 4
Dependent Claim
36 words
A driving gear assembly according to claim 2 wherein each tilting segment bearing comprises at least one rotary bearing segment having a tilting element formed by a longitudinal protrusion or rib on the segment outer periphery.
Claim 5
Dependent Claim
44 words
A driving gear assembly according to claim 1 wherein the radial support bearing means have alternative elements permitting said pivoting movement of the driving shaft about respective axes for said automatic adjustment of the shaft position in either direction of rotation of the 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) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |