Identification tags and their manufacture

摘要

In FIG. 9 a female identification tag is formed by overmolding between mold parts (8, 9) a base section (1) which will include inwardly directed projections or fingers (4) to retain in use the head of a male tag and may include an RFID coil (6). As the mold parts (8,9) separate, the core (10) can start to eject, moving through the flexible opening (13) formed at the top of the soft boss (12) of the tag. Subsequently, a hard insert can close off the opening (13) in providing tamperproofing. The core (10) can be caused to rotate as it moves through the flexible opening (13) in order to break any bond between the plastics material and the core (10).

主权项

1. A method of manufacture of a female identification tag comprising:
i. positioning within an open moulding tool a female base section including an opening with inwardly directed projections; ii. closing the moulding tool and its core over the female base section to define areas for overmoulding; iii. filling the defined areas with the overmoulding material so as to include the formation of a boss as part of a female tag; iv. opening the moulding tool and provide for its core to move through an upper opening formed in the boss; and v. ejecting the female tag from the open tool; wherein the boss is at least partially flexible, wherein the upper opening of the boss is narrower than a chamber defined by the moulding tool in the boss, the chamber delimiting a space wherein a head of a male tag may be retained by said inwardly directed projections, wherein the upper opening of the boss is widened by the core of the moulding tool, when the core is extracted from the chamber through the upper opening, and wherein the upper opening returns to its original size when the core is fully ejected from the chamber, and wherein the boss has a sidewall extending upwardly from the female base portion that defines the chamber, and wherein the upper opening of the boss is at the an end of the sidewall that is distanced from the female base portion.