Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1986-08-12
1989-08-15
Hail, III, Joseph J.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
H01F 4106
Patent
active
048567213
DESCRIPTION:
BRIEF SUMMARY
The present invention has for its object a winding device characterized by the fact that it enables coils to be manufactured by winding a wire around supports which are substantially deprived of rigidity.
The attached drawing shows by way of non limiting example only, several embodiments of the present invention.
FIG. 1, is a top view in cross-section;
FIG. 2 is a plan view of the device of FIG. 1;
FIG. 3 is a top view in cross-section of a second embodiment of the claimed invention.
The winding device shown in the drawings comprises an element 1 used as a plier intended to position and then fix the non-rigid support 2 during the winding. The width of this support 2 may be reduced substantially to one approximating that of a thin paper sheet.
In order that the winding operation may proceed, it is necessary that the portion of the non-rigid support 2 which is acted upon by the tension applied to the wire 3 to be wound be rendered non flexible. To this effect, an element 4 is provided positioned axially with respect to the coil the feeding of which is synchronised with the arm 5 of the winding mechanism at each revolution, this feeding being controlled by a motor which is not shown.
The two lateral extensions 6 and 7 of the element 4 are spaced of a distance just greater than the thickness of the non-rigid support 2 plus of twice the diameter of the wire 3 to be wound and covering the wound portion of the wire in such a way that the last wound turns(s) during the manufacture are at least over the width of the non rigid-support 2, this element 4 being therefore able through its two extensions 6, 7 to render sufficiently inflexible the section of the non-rigid support 2 over an extent of the surface of the support is substantially the same as the one of the turn which is just being wound.
During the winding operation and due to the fact that the thickness of the coil is only a little less than the distance separating the two extensions 6, 7 of the element 4 this design enables a free longitudinal displacement of these two extensions 6 and 7 over the portion of the non-rigid support 2 which is already wound. Therefore under these conditions it is possible that the non-rigid support 2, under the tension applied to it by the wire 3 at each revolution may begin to oscillate. To avoid such a drawback, and in case the non-rigid support 2 is made of a material which is sensitive to the magnetic action of a magnet, it may be advantageous to slide over one of the two extensions 6 or 7 of the element 4, a coil 8 conducting an electric current.
In the alternative embodiment depicted in FIG. 3, the element 4 comprises a single member 7 adjacent to which the coil support 2 passes upon having the wire 3 wound therearound. In this alternative embodiment, electromagnetic means is provided in the form of a wire 8 wound around a portion of member 7 which, upon the passage of electric current therethrough, serves to draw the wound coil toward the member 7 and maintain the coil in close proximity to the member.
It is also possible to conduct the winding operation in several ways. For example, the means to wind said wire about the coil support may be maintained in a fixed position while both the coil support and the element 4 are caused to rotate about the winding means to effect the winding of said wire about the support. During such winding an axial movement is also effected between said winding means and said coil support.
1. A winding device for winding a wire around a non-rigid planar coil support to form a wound coil which comprises: coil support which is acted upon by tension applied to said wire during said winding of said wire about said support, said means comprising two opposed members having opposed surfaces which are substantially planar in configuration positioned on opposite sides of said non-rigid planar coil support and spaced apart a distance slightly greater than the width of the wound coil, said opposed surfaces being spaced apart sufficiently to permit said coil support to pass therebetween in the form of a wo
REFERENCES:
patent: 391908 (1888-10-01), Murphy
patent: 412880 (1889-10-01), Everson
patent: 1382502 (1921-06-01), Green
patent: 1392611 (1921-10-01), Adams
patent: 1412747 (1922-04-01), Hull
patent: 2730474 (1956-01-01), Finholt et al.
patent: 2765124 (1956-10-01), Sickles
patent: 3142450 (1964-07-01), Bohannon, Jr.
patent: 3291403 (1966-12-01), Montgomery
patent: 3445072 (1969-05-01), Koppisch
patent: 3793816 (1974-02-01), Kodama
patent: 3837152 (1974-09-01), Dakhov et al.
Bonello Philippe
Noirot Jacques
Hail III Joseph J.
Sarcem S.A.
LandOfFree
Winding device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Winding device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Winding device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-116063