US4908534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spindle with electromotor drive for a spinning machine
Assignee: ABB Asea Brown Boveri Ltd
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Filing: 1988-10-13
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Granted: 1990-03-13
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Expires: 2008-10-13
Abstract
Abstract A stator for an electric motor for driving a spindle of a spinning machine, including a magnetic core having a stack of magnetically active plates and a plurality of coils received within the plates, projecting beyond the top and bottom surfaces of the magnetic core. A protective covering encloses the projecting portions of the coils to protect the coils from impact forces or other disturbances.
Inventors
- 👤 Hans R. Gubler
- 👤 Gustav Fetzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:01
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/08; B; B65; B65H; B65H54/00; B65H54/70; B65H54/74; D; D01; D01H; D01H1/00; D01H1/14; D01H1/20; D01H1/24; D01H1/244; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
267 words
A spindle drive apparatus for a spinning machine of the type having a bobbin supporting spindle rotatably mounted in a bearing housing in the spindle bank of the spinning machine and on which spindle a rotor is fixedly mounted for rotation therewith, said apparatus comprising: a stator, mounted on the spindle bank and surrounding the rotor, for rotating the rotor and the spindle, said stator including a plurality of electrically conductive coils and a stack of magnetically active plates shaped for receiving said plurality of coils; an interconnecting member, connected to the spindle bank on one axial end of said stator, for mounting said stator on the spindle bank, said coils having a first portion projecting from said stack of plates in a direction toward said interconnecting member and a second portion projecting from said stack of plates in a direction away from said interconnecting member; a protective cover encasing said first and second projecting portions of said coils, said protective cover including a first protective cover portion extending from said stack of plates in said direction towards said interconnecting member for substantially encasing said first projecting portion of said coils and a second protective cover portion extending from said stack of plates in said direction away from said interconnecting member for substantially encasing said second projecting portion of said coils; and means for securing said second protective cover portion to said interconnecting member including a plurality of brackets, one end of each bracket being fixedly connected to said interconnecting member and the other end of each bracket being fixedly connected to said second protective cover portion.
Claim 2
Dependent Claim
267 words
A spindle drive apparatus for a spinning machine of the type having a bobbin supporting spindle rotatably mounted in a bearing housing in the spindle bank of the spinning machine and on which spindle a rotor is fixedly mounted for rotation therewith, said apparatus comprising: a stator, mounted on the spindle bank and surrounding the rotor, for rotating the rotor and the spindle, said stator including a plurality of electrically conductive coils and a stack of magnetically active plates shaped for receiving said plurality of coils; an interconnecting member, connected to the spindle bank on one axial end of said stator, for mounting said stator on the spindle bank, said coils having a first portion projecting from said stack of plates in a direction toward said interconnecting member and a second portion projecting from said stack of plates in a direction away from said interconnecting member; a protective cover encasing said first and second projecting portions of said coils, said protective cover including a first protective cover portion extending from said stack of plates in said direction towards said interconnecting member for substantially encasing said first projecting portion of said coils and a second protective cover portion extending from said stack of plates in said direction away from said interconnecting member for substantially encasing said second projecting portion of said coils; and means for securing said second protective cover portion to said interconnecting member including a plurality of brackets, one end of each bracket being fixedly connected to said interconnecting member and the other end of each bracket being fixedly connected to said second protective cover portion.
Claim 3
Dependent Claim
45 words
A spindle drive apparatus according to claim 1 and characterized further by a plurality of brackets for retaining said stack of plates in relationship with one another, and an interconnecting member fixedly secured to the spindle bank of the spinning machine and to said brackets.
Claim 4
Dependent Claim
47 words
A spindle drive apparatus according to claim 2 and characterized further in that each of said brackets includes arcuate recesses and said interconnecting member includes a cylindrical surface, said cylindrical surface and said recesses interengaging to center said brackets and stator with respect to the bearing housing.
Claim 5
Dependent Claim
64 words
A spindle drive apparatus according to claim 3 and characterized further in that said protective cover includes a cap secured to said brackets and a pair of peripheral walls, one of said pair of peripheral walls extending between said cap and said stack of plates and the other of said pair of peripheral walls extending from said stack of paltes to said interconnecting member.
Claim 6
Dependent Claim
38 words
A spindle drive apparatus according to claim 4 and characterized further in that said protective cover includes a space-filling mass for substantially filling the space between said brackets, said cap, said stack of plates and said peripheral walls.
Claim 7
Dependent Claim
43 words
A spindle drive apparatus according to claim 2 and characterized further in that each of said plates is of a generally square shape, the corner regions of said plates being aligned, and said brackets are secured to said plates along their corner regions.
Claim 8
Dependent Claim
27 words
A spindle drive apparatus according to claim 2 and characterized further in that the outer side surfaces of said stack of plates are uncovered between said brackets.
Claim 9
Dependent Claim
28 words
A spindle drive apparatus according to claim 1 and characterized further in that said protective cover includes a body cast onto said stack of plates and said coils.
Claim 10
Dependent Claim
38 words
A spindle drive apparatus according to claim 2 and characterized further in that said protective covering is a body cast onto said stack of plates and said coils, and said body is fixedly secured to said interconnecting means.
Claim 11
Dependent Claim
24 words
A spindle drive apparatus according to claim 8 and characterized further in that the outer side surfaces of said stack of plates are uncovered.
Claim 12
Dependent Claim
21 words
A spindle drive apparatus according to claim 5 and characterized further in that said space-filling mass is formed of plastic material.
Claim 13
Dependent Claim
22 words
A spindle drive apparatus according to claim 11 and characterized further in that said space-filling mass includes particles of heat dissipating material.
Claim 14
Dependent Claim
18 words
A spindle drive apparatus according to claims 11 and characterized further in that said plastic is fiber reinforced.
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) | 1993-03-12 | 1993-09-11 | 1994-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-12 | 1997-09-11 | 1998-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-12 | 2001-09-11 | 2002-03-13 | $7700.00 | Window Closed / Lapsed |