US3648942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winding apparatus
Assignee: Eastman Kodak Co
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Filing: 1970-07-02
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Granted: 1972-03-14
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Expires: 1990-07-02
Abstract
Abstract A winding spindle or chuck for releasably gripping and driving a spool or reel and comprising a drive shaft having circumferential groove in the peripheral surface at the outer end thereof. A sleeve member is provided which has a centrally disposed axial opening with an inner diameter substantially equal to the diameter of the winding spindle. The sleeve member has a radially inwardly extending shoulder at the outer end and a plurality of radial slots formed along the major portion of the length thereof from the outer end thereby forming a plurality of finger members. The sleeve member is arranged to fit on said drive shaft in a first position with the inwardly extending shoulder portion of the finger members fitting in the groove with an outer diameter less than the reel center. In a second position of the sleeve, the finger members are no longer in the groove but are deflected outwardly whereby the outer diameter of said sleeve member is greater than the reel center thereby firmly holding it on the spindle. Means is provided for rotationally connecting the sleeve member to the drive shaft while permitting axial movement of the sleeve member therealong.
Inventors
- 👤 John S Lercher
- 👤 Lester C Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:50
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/003; G03D13/005; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/321; G03B35/00; G03B35/18; G03B35/24
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
159 words
A winding spindle comprising a drive shaft having a circumferential groove in the peripheral surface at the outer end thereof, and a sleeve member having a centrally disposed axial opening having an inner diameter substantially equal to the diameter of the winding spindle, said sleeve member having a radially inwardly extending shoulder at the outer end thereof and a plurality of radial slots formed along the major portion of the length thereof from said outer end thereby forming a plurality of finger members, said inwardly extending shoulder having an inner diameter substantially equal to the diameter of said groove, said sleeve member arranged to fit on said drive shaft in a first position with the inwardly extending shoulder portion of the finger members fitting in said groove, said sleeve member arranged to be displaced axially on said drive shaft to a second position with the inwardly extending shoulder displaced out of said groove with the finger members deflected outwardly.
Claim 2
Dependent Claim
159 words
A winding spindle comprising a drive shaft having a circumferential groove in the peripheral surface at the outer end thereof, and a sleeve member having a centrally disposed axial opening having an inner diameter substantially equal to the diameter of the winding spindle, said sleeve member having a radially inwardly extending shoulder at the outer end thereof and a plurality of radial slots formed along the major portion of the length thereof from said outer end thereby forming a plurality of finger members, said inwardly extending shoulder having an inner diameter substantially equal to the diameter of said groove, said sleeve member arranged to fit on said drive shaft in a first position with the inwardly extending shoulder portion of the finger members fitting in said groove, said sleeve member arranged to be displaced axially on said drive shaft to a second position with the inwardly extending shoulder displaced out of said groove with the finger members deflected outwardly.
Claim 3
Dependent Claim
23 words
The invention according to claim 1 wherein the inner end of said sleeve member is provided with a radially outwardly extending flange member.
Claim 4
Dependent Claim
29 words
The invention according to claim 1 wherein means is provided for rotationally connecting said sleeve member to said drive shaft while permitting axial movement of said sleeve member therealong.
Claim 5
Dependent Claim
326 words
A winding spindle comprising a drive shaft having a cantelevered end portion of reduced diameter forming an annular shoulder between the end portion and the remainder of the shaft, said reduced end portion having a circumferential groove in the peripheral surface at the outer end thereof, the outer edge of said groove having a radially extending shoulder, the inner edge of said groove having a tapered surface to the peripheral surface of said end portion, a reel engaging sleeve member having a centrally disposed axial opening having an inner diameter substantially equal to the diameter of the reduced diameter end portion of the shaft, said sleeve member having a radially outwardly extending flange portion at the inner end and a radially inwardly extending shoulder at the outer end, said sleeve member having a plurality of radial slots formed therein along the major portion of the length thereof from said outer end towards said flange end thereby forming a plurality of finger members, said sleeve member arranged to fit on said end portion of said drive shaft in a first position with the flange spaced from the annular shoulder of the drive shaft and the inwardly extending shoulder portion of the finger members fitting in said groove, the outer diameter of said sleeve member in said first position being substantially equal to the inner diameter of a reel to be wound thereon, said sleeve member arranged to fit on said end portion of said drive shaft in a second position with the flange abutting the annular shoulder of the drive shaft and the finger members deflected outwardly by the contact of said inwardly extending shoulder portion with said tapered surface whereby the outer diameter of said sleeve member is slightly greater than the inner diameter of the reel to be wound thereon, and means for rotationally connecting said sleeve member to said drive shaft while permitting axial movement of said sleeve member along said reduced end portion.
Claim 6
Dependent Claim
326 words
A winding spindle comprising a drive shaft having a cantelevered end portion of reduced diameter forming an annular shoulder between the end portion and the remainder of the shaft, said reduced end portion having a circumferential groove in the peripheral surface at the outer end thereof, the outer edge of said groove having a radially extending shoulder, the inner edge of said groove having a tapered surface to the peripheral surface of said end portion, a reel engaging sleeve member having a centrally disposed axial opening having an inner diameter substantially equal to the diameter of the reduced diameter end portion of the shaft, said sleeve member having a radially outwardly extending flange portion at the inner end and a radially inwardly extending shoulder at the outer end, said sleeve member having a plurality of radial slots formed therein along the major portion of the length thereof from said outer end towards said flange end thereby forming a plurality of finger members, said sleeve member arranged to fit on said end portion of said drive shaft in a first position with the flange spaced from the annular shoulder of the drive shaft and the inwardly extending shoulder portion of the finger members fitting in said groove, the outer diameter of said sleeve member in said first position being substantially equal to the inner diameter of a reel to be wound thereon, said sleeve member arranged to fit on said end portion of said drive shaft in a second position with the flange abutting the annular shoulder of the drive shaft and the finger members deflected outwardly by the contact of said inwardly extending shoulder portion with said tapered surface whereby the outer diameter of said sleeve member is slightly greater than the inner diameter of the reel to be wound thereon, and means for rotationally connecting said sleeve member to said drive shaft while permitting axial movement of said sleeve member along said reduced end portion.
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) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |