Pioneer Electronic Corporation

Sigeo Maruyama

Akira Takahashi

Kaoru Takemasa

Masahiko Kawamura

Tokushige Kon

A multi-disc player having means for preventing a disc magazine from being inserted upsidedown. The disc player includes a magazine holder, means for taking a disc tray out of a magazine accommodated in the holder, a turntable, a disc clamper and playback means. The magazine has a front face formed with a surface at one portion and formed with a stepped portion at another portion. The preventing means includes a magazine ejector arm pivotally supported on the magazine holder, and a biasing spring for urging the ejector arm in a direction to eject the magazine out of the magazine holder. If the magazine ejector arm is in contact with the surface, the ejector arm can be fully pivotted because of manual pushing force applied to the magazine. However, if the magazine ejector arm is in contact with the stepped portion due to the insertion of the magazine upsidedown, the ejector arm is lockingly engaged with the stepped portion to terminate its pivotal motion prior to reaching its fully pivotted position.

Growing community of inventors

Kawagoe, Japan

Sigeo Maruyama