Winding – tensioning – or guiding – Convolute winding of material – Simultaneous winding
Patent
1998-03-05
1999-10-26
Walsh, Donald P.
Winding, tensioning, or guiding
Convolute winding of material
Simultaneous winding
2425711, 2425712, B65H 1808
Patent
active
059713143
ABSTRACT:
The friction winding shaft is used to wind up materials in strip form onto coil cores (16). It comprises a core shaft (20) annularly surrounded by friction elements (12), as well as radially acting tension elements (24), which in the operating position bring about a frictional engagement between the coupling elements (28) slaved by the core shaft (20) and the friction elements (12), by means of which engagement torque can be transmitted with slip from the core shaft (20) to the friction elements (12). The friction elements (12) are movable outward in order in operation to establish a rotationally fixed connection between the friction elements (12) and the coil core (16). With the goal of assuring slip-free slaving of the coil core at a certain torque, it is proposed that the tension elements (24), by means of the radial forces they impose, move the friction elements (12) radially outward via the coupling elements (28) and put them in contact with the coil core. Under the radial forces of the tension elements (24) effective in the operating position, the torque transmitted by the frictional pairing of the coupling element and friction element is intended to be lower than the torque that can be transmitted by the pairing of friction element and coil core, so that a rotationally fixed slaving occurs between the friction element (12) and the coil core (16).
REFERENCES:
patent: 4220291 (1980-09-01), Papa
patent: 4461430 (1984-07-01), Lever
patent: 5451010 (1995-09-01), Heuser
patent: 5460339 (1995-10-01), Drew
patent: 5797473 (1998-08-01), Schulze et al.
Pham Minh-Chau
Walsh Donald P.
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