Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1983-08-16
1986-12-02
Hornsby, Harvey C.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 754, 242 99, B65H 1604, B65H 2308
Patent
active
046259317
ABSTRACT:
A device for preventing meandering or free running of a web on a roll supported on a shaft on a machine, like a thermal printer. A stationary shaft is fixed to the frame. A core is rotatably mounted around the shaft. A reel mounted around the core has a carbon ribbon that is to be wound on it or unwound from it when the reel is rotated. A leaf spring between the core and the inner circumference of the reel frictionally connects the reel and the core so that the reel does not rotate idly of the core, but rotates together with the core. The core is held by a spacer at a predetermined distance along the shaft from the machine frame. A spring acting on the opposite side of the core pushes the core toward the spacer, whereby the core is frictionally restrained from freely rotating, which prevents web meander. Felt washers disposed between the core and the elements axially adjacent thereto smooth the rotation of the core and prevent wear thereof.
REFERENCES:
patent: 2928620 (1960-03-01), Stavrakis et al.
patent: 3850379 (1974-11-01), Stern
patent: 4095754 (1978-06-01), Campo
patent: 4190211 (1980-02-01), Janzen
patent: 4205804 (1980-06-01), Carlson
patent: 4322044 (1982-03-01), Bilek
patent: 4444364 (1984-04-01), Dahl et al.
Kikuchi Reiji
Tamura Tadashi
Haugland Scott J.
Hornsby Harvey C.
Kabushiki Kaisha Sato
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