US3815836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sleeve chuck for thread winding device
Assignee: Oerlikon Barmag AG
•
Filing: 1972-02-08
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Granted: 1974-06-11
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Expires: 1992-02-08
Abstract
Abstract A sleeve chuck in a textile winding device in which the winding shaft, adapted to hold or grip a bobbin or core sleeve, is made up of an inner shaft means freely rotatable within an outer cage means provided with openings to receive individual gripping elements in cammed engagement with the shaft means and also including spring means interconnecting the shaft and cage means to resiliently urge the gripping elements radially outwardly of the cage means.
Inventors
- 👤 G Munnekehoff
- 👤 H Busch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:48
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/24; B65H75/242; B65H75/246; B65H75/247; B65H54/00; B65H54/02; B65H54/40; B65H54/54; B65H54/543; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
179 words
A sleeve chuck for a thread winding device which comprises: a shaft means including a shaft of circular cross-section over its entire length rotatable within and encircled by a concentrically positioned tubular cage having a plurality of openings at selected positions on its circumference; a plurality of individual gripping elements carried by said shaft for movement radially thereof in each of said cage openings in response to the rotational movement of the shaft relative to the cage, said gripping elements being constructed as cam members having at least one portion of gradually increasing radius and being mounted in said cage openings for engagement with said shaft; means to retain each of said gripping elements at least partially within its cage opening while also permitting its radial movement outwardly beyond the circumference of said cage for engagement with an interchangeable thread winding core sleeve; and spring means interconnecting said shaft means and said cage and arranged to resiliently urge the cage to rotate relative to the shaft in the direction causing the radial outwardly gripping movement of said gripping elements.
Claim 2
Dependent Claim
179 words
A sleeve chuck for a thread winding device which comprises: a shaft means including a shaft of circular cross-section over its entire length rotatable within and encircled by a concentrically positioned tubular cage having a plurality of openings at selected positions on its circumference; a plurality of individual gripping elements carried by said shaft for movement radially thereof in each of said cage openings in response to the rotational movement of the shaft relative to the cage, said gripping elements being constructed as cam members having at least one portion of gradually increasing radius and being mounted in said cage openings for engagement with said shaft; means to retain each of said gripping elements at least partially within its cage opening while also permitting its radial movement outwardly beyond the circumference of said cage for engagement with an interchangeable thread winding core sleeve; and spring means interconnecting said shaft means and said cage and arranged to resiliently urge the cage to rotate relative to the shaft in the direction causing the radial outwardly gripping movement of said gripping elements.
Claim 3
Dependent Claim
30 words
A device as claimed in claim 1 wherein said gripping elements are in direct contact with said shaft, with guide means to direct said gripping elements in a radial direction.
Claim 4
Dependent Claim
121 words
A sleeve chuck for a thread winding device which comprises: a hollow shaft means with uniformly arranged openings over its circumference for receiving gripping elements; individual rotatable plate members in the hollow bore of said shaft means; individual rotatable gripping elements retained in said openings for radial outwardly gripping movement while being in circumferential contact with said plate members, at least one of said plate members and its contacting gripping elements having one or more portions of increasing radius to provide cammed engagement therebetween; and spring means interconnecting said shaft means and said plate members and arranged to resiliently urge the plate members to rotate relative to the shaft in the direction causing the radial outwardly movement of said gripping elements.
Claim 5
Dependent Claim
121 words
A sleeve chuck for a thread winding device which comprises: a hollow shaft means with uniformly arranged openings over its circumference for receiving gripping elements; individual rotatable plate members in the hollow bore of said shaft means; individual rotatable gripping elements retained in said openings for radial outwardly gripping movement while being in circumferential contact with said plate members, at least one of said plate members and its contacting gripping elements having one or more portions of increasing radius to provide cammed engagement therebetween; and spring means interconnecting said shaft means and said plate members and arranged to resiliently urge the plate members to rotate relative to the shaft in the direction causing the radial outwardly movement of said gripping elements.
Claim 6
Dependent Claim
46 words
A device as claimed in claim 3 wherein said gripping elements are constructed as cam members having at least one portion of gradually increasing radius and are in direct contact with a plate member, with guide means to direct said gripping elements in a radial direction.
Claim 7
Dependent Claim
43 words
A device as claimed in claim 3 wherein each of said plate members is composed of a plurality of congruent sectors of gradually increasing radius relative to the shaft axis, and each of said gripping elements is constructed as a body of revolution.
Claim 8
Dependent Claim
51 words
A device as claimed in claim 3 wherein individual shafts bearing said plate members are each rotatably mounted in a two-part basket member fixed within the hollow bore of said shaft, said spring means operatively connecting at least one of said plates and its associated gripping elements with said basket member.
Claim 9
Dependent Claim
47 words
A device as claimed in claim 3 wherein the individual gripping elements and their openings are arranged on a generatrix line of the cylindrical cage surface but are offset with respect to each other in the form of lOcations on a helical line of the cage surface.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |