Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1975-10-01
1976-12-21
McCarthy, Edward J.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
B65H 7528
Patent
active
039984010
ABSTRACT:
In a preferred embodiment of the invention, a tape reel has a hub tape-anchoring mechanism defined by the structure thereof, preferably defining a slit of which one side face of the slit is a friction-engaging surface against which a tape end becomes pressed to be thereby clamped against withdrawal from the slit, and of which a second side face of the slit is composed of a to and fro advanceable and retractable friction face of a wedge element slidably movable along axially an elongated axis thereof at a slit-intersecting angle defined between the elongated axis and the distal anchored end of the tape with the result that the wedge element, lightly spring-biased against the tape face, becomes increasingly clamped thereagainst when the reel rotates in a normally forward direction, the slit having its elongated axis extending substantially radially and tangentially inwardly from a circumscribing periphery of the hub structure at an angle that intersects a radius at a radially inward acute angle, by which relative to a tangential linear line touching a periphery of the hub structure and perpendicular to the radius the slit forms an obtuse angle from a forward mouth edge of the slit adjacent the one-side of the slit and forms an acute angle from a rear mouth edge of the slit adjacent the wedge-face edge of the slit, with the wedge element protruding beyond a point of clamping and a point to which the rear mouth edge of the slit is recessed to result in an automatic release of the clamped tape end when the tape reel rotates in a direction of movement of the rear mouth edge to a point of location of the forward mouth edge upon and after an unwinding of the last wound loop around the hub structure.
REFERENCES:
patent: 2859920 (1958-11-01), Flahan
patent: 2948487 (1960-08-01), Locklin
patent: 3326483 (1967-06-01), Ivans
patent: 3347486 (1967-10-01), Martin
patent: 3544028 (1970-12-01), Wangerin
patent: 3545697 (1970-12-01), Sovia
Hough William T.
McCarthy Edward J.
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