Winding – tensioning – or guiding – Bobbin or spool – Double-headed spool
Patent
1990-12-20
1991-10-22
Gilreath, Stanley N.
Winding, tensioning, or guiding
Bobbin or spool
Double-headed spool
24211841, 2421251, 336192, 336208, B65H 7508, B65H 7528, H01F 1510
Patent
active
050588214
ABSTRACT:
A coil bobbin includes a main cylinder portion opened at both ends around which a coil is wound, and a leader cable accommodating groove portion disposed in a manner surrounding the main cylinder portion at one end of the main cylinder portion on an outer peripheral surface of the main cylinder portion. The leader cable accommodating groove portion includes a leader cable front end accommodating portion for accommodating a front end of a leader cable, and the leader cable front end accommodating portion has a radialwise width, being smaller than a radialwise width of an inner portion of the leader cable accommodating groove portion, at a portion adjacent to an opening of the leader cable accommodating groove portion. Hence, the coil bobbin not only holds the leader cable in the leader cable accommodating groove portion stably, but also inhibits the leader cable from coming off the leader cable accommodating groove portion outward in an axial direction with the leader cable front end accommodating portion.
REFERENCES:
patent: 1704151 (1929-03-01), Simpson
patent: 2229413 (1941-01-01), Joost
patent: 3259864 (1966-07-01), Marzolf et al.
patent: 3315198 (1967-04-01), Biesma et al.
patent: 3363210 (1968-01-01), Hollyday
patent: 3470511 (1969-09-01), Heinzen
patent: 4122425 (1978-10-01), Hughes
patent: 4403753 (1983-09-01), Gibas et al.
patent: 4546340 (1985-10-01), Kuchuris
Daiwa Electricity Plant Co., Ltd.
Gilreath Stanley N.
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