Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1978-04-17
1979-06-19
Hornsby, Harvey C.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 72R, B65H 7524
Patent
active
041584465
ABSTRACT:
A core chuck designed to lock the core of a roll of material winding and unwinding operations to a mandrel, which core chuck comprises a core and a tubiform cylindrical chuck body dimensioned to accommodate the core. Means are provided for fastening the chuck body onto the mandrel shaft. The chuck body defines on the surface opposite the core at least one recess disposed parallel to the rotating axis thereof which recess has a releasably terraced bottom step plate including at least one step ascending from a common center groove to each side of the recess. The top faces of the step and of the common center groove are substantially parallel to and spaced apart at different distances from the opposite smooth face of the core. At least one toothed roller is disposed in the recess with its axis parallel to the axis of the chuck body. The top face of each of the steps has two raised ribs spaced apart from each other to define an axially disposed groove therebetween, and receives the corresponding tooth of the toothed roller, in order to prevent an axial movement and an inclined position of the latter. Retaining means are provided to prevent the overextension of the springs, as well as the outward movement of the locking roller and of the step plate. The retaining means may include an arch shaped stamping which is inserted with slight pressure at each end of the roller recess, to form a cover or roof, both legs of the arch shaped stamping resting on the top side of the step plate. The toothed roller has an extended pin on each end and said extended pin is disposed spaced apart from the bottom face of said stamping upon locking the same in said core.
REFERENCES:
patent: 2798678 (1957-07-01), Dadd
patent: 3231212 (1966-01-01), Blake
patent: 3281092 (1966-10-01), Schultz et al.
patent: 3387799 (1968-06-01), Wilson
patent: 3870243 (1975-03-01), Briggs
patent: 3993317 (1976-11-01), Flagg
patent: 3999720 (1976-12-01), Eberlin
Hornsby Harvey C.
Jillions John M.
Montague Ernest G.
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