Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1990-01-29
1992-07-21
Hail, III, Joseph J.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 6710R, 355 27, B65H 1810
Patent
active
051315920
ABSTRACT:
An automatic winding mechanism which includes a rotatable winding shaft, a first guide including a circular first guide portion and a second guide including a substantially U-shaped second guide portion is disclosed. A leader portion of a continuous sheet fed by a pair of feed rollers is introduced along a circumferential surface of the winding shaft by the first and second guide portions which are disposed so as to enclose the winding shaft in cooperation with each other. The continuous sheet is then automatically wound on the winding shaft since the circumferential velocity of the winding shaft is set higher than the feeding speed of the feed rollers. The winding mechanism also includes a first sensor for sensing whether the winding shaft is in place. The winding mechanism is started if the winding shaft is sensed and the winding mechanism is prevented from starting if the winding shaft is not sensed. A second sensor for sensing that a leader portion of the continuous sheet is disposed between the feed rollers and the winding shaft is also provided. When the second sensor is provided, tapered flanges are formed on both ends of the winding shaft and are tapered toward its center. A nip of the sheet by the feed rollers is cancelled by a nip cancelling mechanism when a leader portion of the continuous sheet is sensed by the second sensor. As a result, the leader portion is permitted to move freely to a proper centered position on the winding shaft.
REFERENCES:
patent: 1861374 (1932-05-01), Wood
patent: 4483492 (1984-11-01), Tokuda et al.
patent: 4504026 (1985-03-01), Serizawa et al.
patent: 4544110 (1985-10-01), Nagel et al.
patent: 4784345 (1988-11-01), Romanowski et al.
patent: 4832284 (1989-05-01), Inoue
patent: 4838497 (1989-06-01), Kramer et al.
Ohno Motoshi
Shibata Eiji
Brother Kogyo Kabushiki Kaisha
Darling John P.
Hail III Joseph J.
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