US3717918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inserting tool for inserting coils into stator grooves
Assignee: Statomat Globe Maschinenfabrik GmbH
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Filing: 1971-06-07
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Granted: 1973-02-27
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Expires: 1991-06-07
Abstract
Abstract A device for placing pre-wound coils into stator grooves including a generally circular stripper member movable through the stator. Projections are arranged about the periphery of the stripper member with fingers located in the slots formed between the projections. Some fingers, and preferably at least one finger adjacent each tooth which contains a prewound coil to be placed into the stator is fixed onto the stripper member for movement therewith as the latter moves through the stator. A guide rod fixed relative to the stator is placed between each fixed mounting finger and the inner periphery of the stator to prevent wear of the fixed mounting finger as the stripper member moves through the stator.
Inventors
- 👤 H Droll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:02
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/06; H02K15/062; H02K15/065; H02K15/067; H02K15/068; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/53143
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
262 words
A device for placing pre-wound coils into grooves of stators or the like comprising: a stripper member mounted for movement through a stator, said stripper member including projections positioned about the periphery of the stripper member and extending outwardly therefrom such that in operation each said projection is positioned across a stator groove, finger members located in planes passing between said projections and extending in a direction parallel to the direction of relative movement between the stripper member and the stator; one finger being located on each side of each projection which has a pre-wound coil associated with it for placement into a stator groove; at least one of said fingers on one side of a given projection which has a pre-wound coil associated with it being fixed to the stripper member for movement therewith through the stator to reduce relative frictional movement between the pre-wound coil associated with the said given projection and its adjacent fingers; and including a guide means located between the said fixed mounting finger and the inner periphery of the stator such that as the stripper member moves through the stator, at least a portion of the radial outer side of the fixed mounting finger is prevented by the guide means from engaging the inner periphery of the stator, said guide means being an elongated guide rod fixed against movement relative to the stator and extending in the direction of relative movement between the stripper member and the stator, said fixed mounting finger being guided along the guide rod as the stripper member moves through the stator.
Claim 2
Independent Claim
262 words
A device for placing pre-wound coils into grooves of stators or the like comprising: a stripper member mounted for movement through a stator, said stripper member including projections positioned about the periphery of the stripper member and extending outwardly therefrom such that in operation each said projection is positioned across a stator groove, finger members located in planes passing between said projections and extending in a direction parallel to the direction of relative movement between the stripper member and the stator; one finger being located on each side of each projection which has a pre-wound coil associated with it for placement into a stator groove; at least one of said fingers on one side of a given projection which has a pre-wound coil associated with it being fixed to the stripper member for movement therewith through the stator to reduce relative frictional movement between the pre-wound coil associated with the said given projection and its adjacent fingers; and including a guide means located between the said fixed mounting finger and the inner periphery of the stator such that as the stripper member moves through the stator, at least a portion of the radial outer side of the fixed mounting finger is prevented by the guide means from engaging the inner periphery of the stator, said guide means being an elongated guide rod fixed against movement relative to the stator and extending in the direction of relative movement between the stripper member and the stator, said fixed mounting finger being guided along the guide rod as the stripper member moves through the stator.
Claim 3
Dependent Claim
42 words
A device according to claim 1, wherein the stator includes stator teeth between adjacent stator grooves, each mounting finger facing a stator tooth, and wherein each guide means is slightly wider than the inner periphery of the stator tooth which it faces.
Claim 4
Dependent Claim
25 words
A device according to claim 1, wherein said fixed mounting fingers are essentially U-shaped in cross-section, the legs of the U enclosing the guide means.
Claim 5
Dependent Claim
42 words
A device according to claim 3, wherein the stator includes stator teeth between adjacent stator grooves, each mounting finger facing a stator tooth, and wherein the legs of the U project into the stator grooves adjacent the stator tooth which it faces.
Claim 6
Dependent Claim
71 words
A device according to claim 1, the stator including stator teeth between adjacent stator grooves, each mounting finger facing a stator tooth, and wherein each guide means is slightly wider than the inner periphery of the stator tooth which it faces, said fixed mounting fingers being essentially U-shaped in cross-section, the legs of the U enclosing the guide means and projecting slightly into the stator grooves adjacent the tooth it faces.
References Cited (Backward Citations)
US3324536A
Cited
US3559268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |