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US3920291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resiliently journaled spindle
Assignee: SKF GmbH
•
Filing: 1973-06-12
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Granted: 1975-11-18
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Expires: 1993-06-12
Abstract
Abstract An assembly for journalling spindle shafts in spinning and twisting machines. At least one resilient elongated member, such as a bar spring interconnects the neck and foot bearing. The neck and foot bearing are secured firmly to the respective ends of the resilient member.
Inventors
- 👤 Gunther Wendel
- 👤 Heinz Meissler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:32
CPC Classifications
D; D01; D01H; D01H7/00; D01H7/02; D01H7/04; D01H7/045
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
104 words
An assembly for journalling the shaft of a the spindle of a spinning and twisting frame comprising a bearing housing having a neck bearing at the upper end and a foot bearing at the lower end, each of said neck and foot bearing being mounted in a bearing mount located within said housing, at least one of said neck and foot bearing mounts being axially movable with respect to said housing and at least one elongated tension spring fixedly connected at its respective ends to said neck and foot bearing mounts so as to yieldably space said neck and foot bearings from each other.
Claim 2
Dependent Claim
104 words
An assembly for journalling the shaft of a the spindle of a spinning and twisting frame comprising a bearing housing having a neck bearing at the upper end and a foot bearing at the lower end, each of said neck and foot bearing being mounted in a bearing mount located within said housing, at least one of said neck and foot bearing mounts being axially movable with respect to said housing and at least one elongated tension spring fixedly connected at its respective ends to said neck and foot bearing mounts so as to yieldably space said neck and foot bearings from each other.
Claim 3
Dependent Claim
14 words
The assembly according to claim 1 wherein said tension spring comprises a bar spring.
Claim 4
Dependent Claim
15 words
The assembly according to claim 2 wherein the ends of said bar spring are splined.
Claim 5
Dependent Claim
19 words
The assembly according to claim 1 wherein said bar spring extends parallel to the axis of said spindle shaft.
Claim 6
Dependent Claim
13 words
The assembly according to claim 1 wherein said recess is a blind bore.
Claim 7
Dependent Claim
13 words
The assembly according to claim 1 wherein said recess is a through bore.
Claim 8
Dependent Claim
13 words
The assembly according to claim 1 wherein said recess is an axial slot.
Claim 9
Dependent Claim
19 words
The assembly according to claim 1 wherein the ends of said tension spring are shaped to provide secure fastening.
Claim 10
Dependent Claim
17 words
The assembly according to claim 1 including means for resiliently securing said neck bearing in said housing.
Claim 11
Dependent Claim
23 words
The assembly according to claim 1 including damping means interposed between said housing and at least one of said neck and foot bearings.
Claim 12
Dependent Claim
29 words
The assembly according to claim 10 wherein said neck bearing is provided with damping means comprising an enclosure of elastic material and said foot bearing with an oil-damping coil.
Claim 13
Dependent Claim
19 words
The assembly according to claim 1 wherein said movable neck and foot bearing mounts are removably secured in housing.
Claim 14
Dependent Claim
29 words
The assembly according to claim 1 wherein said neck and foot bearing mounts are respectively provided with recesses for receiving and securing the respective ends of the tension spring.
Claim 15
Dependent Claim
24 words
The assembly according to claim 13 including a plurality of spring bars spaced parallel to each other about the axis of the spindle shaft.
Claim 16
Dependent Claim
23 words
The assembly according to claim 14 wherein said spring bars are uniformly spaced In a circular path about the axis of the spindle.
Claim 17
Dependent Claim
33 words
The assembly according to claim 15 including an annular collar located axially between said neck and foot bearing, said spring bars extending through said collar, said collar being removably fastened to said housing.
Claim 18
Dependent Claim
22 words
The assembly according to claim 16 wherein said collar is located eccentric of the axial center between said neck and foot bearings.
Claim 19
Dependent Claim
33 words
The assembly according to claim 16 wherein said collar has an outer diameter greater than the outer diameter of said foot and neck bearings so as to be axially secured within said housing.
Claim 20
Dependent Claim
21 words
The assembly according to claim 16 wherein said collar has an inner diameter larger than the diameter of said spindle shaft.
Claim 21
Dependent Claim
22 words
The assembly according to claim 16 wherein said collar is provided with axial slots for receiving and fixedly securing said spring bars.
Claim 22
Dependent Claim
21 words
The assembly according to claim 20 wherein the edges of said slots are mechanically deformed to fixedly secure said spring bars.
Claim 23
Dependent Claim
17 words
The assembly according to claim 20 wherein said slots are filled to fixedly secure said resilient members.
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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |