Patent ID: 7131127

Claim:
An optical disc drive apparatus, comprising: a box-shaped cabinet having an opening in a front face; a frame provided in said cabinet and having a sidewall; and a disc tray supported by said frame; wherein said optical disc drive apparatus is structured such that said disc tray can freely slide between a disc-loaded position at which a disc recording medium is held and allowed to rotate in said cabinet and a disc-removable position at which the disc tray partially comes out in a forward direction from said opening so as to allow loading and removing of the disc recording medium, by engagement of a supporting portion provided in said sidewall of said frame to a supported portion provided at a side edge of said disc tray, said supporting portion includes a guide rib formed protruding from an inner wall surface of said sidewall toward a center portion of the disc drive apparatus, and a plurality of guide protrusions formed protruding upward from said guide rib in a front-to-rear direction of said guide rib, said supported portion has a guide groove slidably engaging to said plurality of guide protrusions on a lower face side of said disc tray, a guide protrusion positioned at forefront among said plurality of guide protrusions is structured so as to come in surface-contact with a wall surface implementing said guide groove, and a root portion of said guide protrusion has a width increasing solely toward the center portion of the disc drive apparatus with respect to its tip end portion.