US3866847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for winding coils for stators of electrical machines
Assignee: Statomat Globe Maschinenfabrik GmbH
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Filing: 1972-12-14
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Granted: 1975-02-18
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Expires: 1992-12-14
Abstract
Abstract An apparatus for winding coils for stators of electrical machines having a former on which the coils are wound and which is made up of at least two portions movable radially towards and away from each other to vary the cross-section of the former between a large cross-section winding position, a small crosssection drawing-off position, and at least one intermediate cross-section winding position. A rod extending axially between the former portions is connected to these portions by a parallel linkage such that axial movement of the rod causes radial movement of the former portions. Stop members are movable into the path of axial movement of the rod and its associated parts to stop the rod at the intermediate position.
Inventors
- 👤 Hans Droll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:07
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/04; H02K15/043
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
326 words
An apparatus for wiNding coils for stators of electrical machines, comprising: a frame, a hollow shaft rotatably mounted in the frame, a face plate means fixed to the hollow shaft and extending radially outwardly therefrom, means formed on said face plate for providing at least two radially extending guide surfaces, a sliding member on each guide surface, a former portion fixedly mounted on each sliding member to move radially therewith, a connecting means connecting each guide surface to its respective sliding member, each said connecting means including means for supporting its respective sliding member on its respective guide surface so as to form a driving connection from said shaft via said face plate and said connecting means to said sliding member and to its respective former, said connecting means further including means for mounting its respective sliding member so as to constrain the sliding member to move radially only in a plane perpendicular to the axis of rotation of the shaft, the former formed by the former protions thus receiving coil windings thereon about its periphery and being movable by said radial movement in said plane to at least two winding crosssections and a smaller cross-section for drawing off a wound coil, a rod extending through the said hollow shaft to a position between said former portions, a rod mounting means for mounting the rod for axial movement relative to the shaft and for rotatable movement with the shaft, at least one link pivotally connecting the rod to each former portion such that upon axial movement of the rod the links pivot and urge their respective former portions to move radially by their sliding members sliding on their respective facing plate means guide surfaces, whereby the axial position of the rod determines the radial position of the former portions and hence determines the former crosssection, and including stop means for positively stopping the rod to locate the position thereof corresponding to said at least two cross-sections.
Claim 2
Independent Claim
326 words
An apparatus for wiNding coils for stators of electrical machines, comprising: a frame, a hollow shaft rotatably mounted in the frame, a face plate means fixed to the hollow shaft and extending radially outwardly therefrom, means formed on said face plate for providing at least two radially extending guide surfaces, a sliding member on each guide surface, a former portion fixedly mounted on each sliding member to move radially therewith, a connecting means connecting each guide surface to its respective sliding member, each said connecting means including means for supporting its respective sliding member on its respective guide surface so as to form a driving connection from said shaft via said face plate and said connecting means to said sliding member and to its respective former, said connecting means further including means for mounting its respective sliding member so as to constrain the sliding member to move radially only in a plane perpendicular to the axis of rotation of the shaft, the former formed by the former protions thus receiving coil windings thereon about its periphery and being movable by said radial movement in said plane to at least two winding crosssections and a smaller cross-section for drawing off a wound coil, a rod extending through the said hollow shaft to a position between said former portions, a rod mounting means for mounting the rod for axial movement relative to the shaft and for rotatable movement with the shaft, at least one link pivotally connecting the rod to each former portion such that upon axial movement of the rod the links pivot and urge their respective former portions to move radially by their sliding members sliding on their respective facing plate means guide surfaces, whereby the axial position of the rod determines the radial position of the former portions and hence determines the former crosssection, and including stop means for positively stopping the rod to locate the position thereof corresponding to said at least two cross-sections.
Claim 3
Dependent Claim
47 words
An apparatus according to claim 1, said links comprising a pair of parallel links for each former portion, each pair pivotably connected at one of their ends to the rod and at the other of their ends to the outwardly slidable former portion or its slidable member.
Claim 4
Dependent Claim
78 words
An apparatus according to claim 1, further including: power means for moving the rod axially between a first end position at which the former portions are drawn towards each other in said drawing-off position, and a second end position at which the former portions are moved away from each other to the largest of said winding positions, and said stop means including means for stopping the rod between said end positions at at least one other winding position.
Claim 5
Dependent Claim
55 words
An apparatus according to claim 3, said power means being a reciprocating power piston and cylinder unit, and said rod mounting means including means connecting the rod to the piston and cylinder unit for reciprocating axial movement therewith and for rotatable movement about its axis, the rod thus being free to rotate with the former.
Claim 6
Dependent Claim
52 words
An apparatus according to claim 4, said stop means including at least one abutment member projecting radially out from said axis and movable axially with the rod, and at least one stop member movable into and out of the path of the abutment member to stop the rod between said end positions.
Claim 7
Dependent Claim
58 words
An apparatus according to claim 5, said abutment member extending completely about the axis of the rod, and said stop member having a semi-circular opening at its end to embrace half of the circumference of the rod as the portion of the stop member adjacent said recess is engaged by the abutment member for 180* about the rod.
Claim 8
Dependent Claim
48 words
An apparatus to claim 5, including a pair of stop members, each movable into and out of the path of the abutment member from a different direction and each capable of stopping the abutment member and hence the rod at a different winding position between said end positions.
Claim 9
Dependent Claim
48 words
An apparatus accorDing to claim 5, each said link comprising a pair of parallel links for each former portion, each pair pivotably connected at one of their ends to the rod and to the other of their ends to the outwardly slidable former portion or its slidable member.
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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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |