SHIM FOR CASSETTE TAPES AND METHOD OF SHAPING THE SAME

摘要

A retainer shim in the form of a sheet to be placed on each of the front and back sides of a tape when the tape is received in a cassette case constituted by a body and a lid, the shim being formed of a self-lubricating synthetic resin material and being of a substantially Y-shape as determined by design criteria based on the function of the shim. As much as possible waste material is avoided in the production of the shims.