Importance

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Abstract

A method of making an injection moulded container for housing information storage media, e.g. a DVD, the container having a base portion (10) and a lid portion (11) moveable about a spine portion (12) between open and closed configurations and holding means (15) for holding the media within the container, the method involving the use of an injection moulding tool comprising two carrier units (40, 41) each adapted to receive a plurality of inserts therein which define a cavity for forming the container: a first set of the inserts (50-59) for forming a first set of features of the container being formed of a first material, e.g. steel, and a second set of inserts (42-45) for forming a second set of features of the container being formed of a second material, e.g a copper alloy, the first set of inserts (50-59) being machined to the required shape for fitting within the carrier units (40, 41) and for forming the first set of features and the second set of inserts (42-45) being machined so as to fit within the carrier units (40, 41) but one or more of the second set of inserts (42-45) being formed with excess material on surfaces thereof defining said second set of features pending a decision as to the precise shape of said second set of features, whereby once a decision has been made the tool can be completed by machining said excess material to the required shape and assembling the inserts in the mould.

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First Claim