Winding – tensioning – or guiding – Composite article winding – On spherical core
Patent
1995-12-13
1997-05-06
Matecki, Katherine
Winding, tensioning, or guiding
Composite article winding
On spherical core
B65H 5464
Patent
active
056263082
ABSTRACT:
A core for a wound ball is produced by winding rubber thread (b) on a center to form a wound core, holding the wound core (a) between a pair of grasping fingers (21), placing a pair of wrapping rolls (31) at a distance from the wound core, wrapping a trailing section of rubber thread around the wrapping rolls (31) to form a loop (d) of rubber thread, contacting the wrapping rolls (31) in pressure with the peripheral surface of the wound core for securing a portion of the loop (d) to the wound core surface, removing the loop (d) from the wrapping rolls (31) and turning it down so as to extend along the wound core over the grasping fingers (21), causing a rubber thread holder (6) to abut the wound core through the turned-down loop for thereby holding the wound core with the rubber thread holder (6) and the wrapping rolls (31) and securing the loop (d) to the wound core surface, and withdrawing the grasping fingers (21) from between the loop and the wound core, obtaining the wound core (a) having the trailing end (c) of rubber thread fixedly bound to its surface. The winding method can firmly secure the trailing end to the center without a need for adhesive, and it can be fully automated.
REFERENCES:
patent: 2153408 (1939-04-01), Bogoslowsky
patent: 3871158 (1975-03-01), Puleo
patent: 4846910 (1989-07-01), Brown
patent: 4921177 (1990-05-01), Blust
patent: 5007594 (1991-04-01), Brown
patent: 5133509 (1992-07-01), Brown
Bridgestone Sports Co. Ltd.
Matecki Katherine
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