| 摘要 |
An improved idler assembly for use as a tape guide in a tape cassette, especially a Phillips type tape cassette, wherein the assembly includes an idler rotatably mounted between the spaced, opposed walls of the cassette and having an outer, tape-engaging surface which is convex to present a crown to keep the tape centered on the idler as the tape moves partially about the idler and as the idler rotates in the cassette. The idler has a bore extending into one end face thereof and a coil spring in the bore biases the idler toward one wall of the cassette. The idler has a pair of end flanges with each flange having a barrier surface preventing any substantial axial movement of the tape relative to the crown.
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