Locking Ring and Packaging for Dispensing Wound Material From a Container

摘要

A locking ring is described that permits removal of filamentary material housed in a walled container through a payout tube defining a payout tube axis and through which a first end of the filamentary material extends. The ring includes an annular flange around a ring axis and a body having a tubular wall extending from an inner edge of the annular flange to a distal edge of the ring. The tubular wall is coaxial with the ring axis, and has a plurality of teeth circumferentially spaced around the tubular wall and extend from the tubular wall radially outwardly and toward the annular flange. Each tooth resiliently deflects radially inwardly in response to interference between the tooth and an inner wall of the payout tube. The curved edges form a thread permitting the ring to advance axially into and secure with the payout tube.

主权项

1. A locking ring for permitting removal of wound filamentary material from a coil of filamentary material housed in a walled container through a payout tube defining a longitudinal tube axis and through which a first end of the filamentary material extends, said locking ring comprising:
an annular flange centered about a longitudinal ring axis; a body having a tubular wall extending from an inner edge of said annular flange to a distal edge of said locking ring, said tubular wall being coaxial with said ring axis, said tubular wall having a plurality of teeth circumferentially spaced around said tubular wall and extending from said tubular wall radially outwardly and longitudinally toward said annular flange, said teeth having curved edges that are curved about said ring axis and about an axis perpendicular to said ring axis, said body constructed for relative axial movement within the payout tube, and each tooth being constructed to resiliently deflect radially inwardly in response to interference between a curved outer surface of said tooth and an inner wall of the payout tube, said curved outer surface being curved about said ring axis, wherein an outer side of said tubular wall is frustoconical, said outer side of said tubular wall having a smaller diameter at said distal edge than at said inner edge of said annular flange.