US3746409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substantially rigid bearing for rotary bodies
Assignee: Carl Schenck AG
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Filing: 1971-11-19
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Granted: 1973-07-17
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Expires: 1991-11-19
Abstract
Abstract A substantially rigid bearing for rotating bodies is anchored with rods to a base or foundation, whereby the rods extend in a common plane perpendicularly to the main bearing axis. The rods restrain the bearing housing or head from rotational movement about said axis, as well as from any radial movements relative to said axis but permit a wobbling movement which causes forces in the direction of said main bearing axis. To control these forces, a plurality of spring means are provided extending substantially in parallel to said main axis and connecting said bearing housing or head to a rigid support without interferring substantially with said wobbling movement.
Inventors
- 👤 M Heiland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:11
CPC Classifications
F; F16; F16C; F16C27/00; G; G01; G01M; G01M1/00; G01M1/02; G01M1/04; F16C2370/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
292 words
A substantially rigid bearing for a rotary body, said bearing having a bearing center and a main axis extending through said center, comprising base means, bearing head means, a spring rod system comprising a plurality of spring rods connected to said bearing head means and to said base means, said spring rods being located in a plane extending through said bearing center and perpendicularly to said main bearing axis, said spring rods being rigid with regard to tensile strain, pressure and buckling but bendable in at least one section thereof whereby the bearing head means are secured to said base means against rotation about said main bearing axis and with uniform rigidity against any radial movement relative to said main bearing axis, said spring rods permitting a wobbling motion of said rotary body along axes extending perpendicularly to each other and to said main axis as well as through said bearing center, a plurality of spring means, a support rigidly connected to said base means and extending substantially perpendicularly relative to said main axis, said plurality of spring means being operatively interposed between said support and said bearing head means, said plurality of spring means exerting force components in parallel to said main axis and of such strength that said wobbling motion is permitted within predetermined limits, and wherein said plurality of spring means have a longitudinal axis, said bearing further comprising mounting means for said plurality of spring means, said mounting means comprising first connecting means for operatively connecting said spring means to said bearing head means, and second connecting means for operatively connecting said spring means to said support, said second connecting means comprising adjusting means for adjusting said second connecting means in said longitudinal axis of said spring means.
Claim 2
Dependent Claim
292 words
A substantially rigid bearing for a rotary body, said bearing having a bearing center and a main axis extending through said center, comprising base means, bearing head means, a spring rod system comprising a plurality of spring rods connected to said bearing head means and to said base means, said spring rods being located in a plane extending through said bearing center and perpendicularly to said main bearing axis, said spring rods being rigid with regard to tensile strain, pressure and buckling but bendable in at least one section thereof whereby the bearing head means are secured to said base means against rotation about said main bearing axis and with uniform rigidity against any radial movement relative to said main bearing axis, said spring rods permitting a wobbling motion of said rotary body along axes extending perpendicularly to each other and to said main axis as well as through said bearing center, a plurality of spring means, a support rigidly connected to said base means and extending substantially perpendicularly relative to said main axis, said plurality of spring means being operatively interposed between said support and said bearing head means, said plurality of spring means exerting force components in parallel to said main axis and of such strength that said wobbling motion is permitted within predetermined limits, and wherein said plurality of spring means have a longitudinal axis, said bearing further comprising mounting means for said plurality of spring means, said mounting means comprising first connecting means for operatively connecting said spring means to said bearing head means, and second connecting means for operatively connecting said spring means to said support, said second connecting means comprising adjusting means for adjusting said second connecting means in said longitudinal axis of said spring means.
Claim 3
Dependent Claim
25 words
The bearing according to claim 1, wherein said plurality of spring means are arranged in parallel to said main axis of said bearing head means.
Claim 4
Dependent Claim
42 words
The bearing according to claim 2, wherein said plurality of spring means are distributed evenly about a cylinder generatrix of a cylinder having a longitudinal axis coinciding with said main bearing axis, and as close to said main bearing axis as possible.
Claim 5
Dependent Claim
32 words
The bearing according to claim 1, wherein each of said plurality of spring means has a stiffness which provide equal restoring moments for said wobbling motions relative to two degrees of freedom.
Claim 6
Dependent Claim
46 words
The bearing according to claim 1, wherein said plurality of spring means are arranged so that said force components are effective at a respective lever arm relative to said center that equal restoring moments are provided for said wobbling motions relative to two degrees of freedom.
Claim 7
Dependent Claim
17 words
The bearing according to claim 1, wherein said plurality of spring means have a non-linear spring characteristic.
Claim 8
Dependent Claim
120 words
The bearing according to claim 1, wherein said first connecting means comprise, for each of said plurality of spring means, a connecting arm connected at one end thereof to said bearing head means, an aperture through said arm at its other end, a sleeve extending through said aperture, means for securing said spring means on said sleeve, said second connecting means comprising a rod extending through said sleeve, means for securing one end of said rod to said sleeve, said adjusting means comprising an aperture in said support, said rod having another, threaded end extending through said aperture in said support, and means for engaging said threaded end of the rod to adjust and secure it relative to said support.
Claim 9
Dependent Claim
17 words
The bearing according to claim 7, wherein said rod extends in parallel to said maIn bearing axis.
Claim 10
Dependent Claim
59 words
The bearing according to claim 7, wherein said plurality of spring means comprise a plurality of disk springs supported on said sleeve on either side of said connecting arm, said sleeve comprising fixed shoulder means at one end thereof and releasable shoulder means secured to the other end of said sleeve, said disk springs pressing against said shoulder means.
Claim 11
Dependent Claim
44 words
The bearing according to claim 7, wherein said first connecting means comprise means for substantially rigidly interconnecting said arm and said sleeve whereby said bearing head means is connected to said support, and whereby the effect of said plurality of spring means is eliminated.
Claim 12
Dependent Claim
121 words
The bearing according to claim 10, wherein said interconnecting means between said arm and said sleeve comprise a bore extending longitudinally through said arm to said aperture through which the sleeve extends, a shim in said bore in contact with said shim, sleeve, a helical spring in said bore in contact with said shim, a threaded end in said bore remote from said sleeve and a set screw in said threaded end for forcing the spring and shim against the sleeve whereby a frictional connection between the sleeve and the arm is established which is effective within predetermined force limits adjustable by said set screw and which permits sliding movements between the sleeve and the arm when said limits are exceeded.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |