Apparatus for tilt adjusting of an optical disc player

An optical disc player comprising:

• a loading device including a tray base integrally connected to a chuck arm, a gear mechanism consisting of a pulley, a reduction gear, a cam gear having at an upper side an upper spiral cam groove and having at a lower side a lower spiral cam groove, a force transmitting gear and an operation gear;
• a lift arm connected to said cam gear and opposite ends of which rotate centering around a pivotal pin in accordance with a rotation of said cam gear;
• first and second sliding plates movably connected to the opposite ends of said lift arm to guide the combined body of said chuck arm and said tray base to be elevated, and a disc tray mounted on said tray base and having an operation rack engaged with said operation gear at its inner side;
• an apparatus for adjusting an object lens of a pickup to be perpendicular to an optical disc surface, said apparatus operatively cooperating with said loading device in order to move a guide member, said apparatus including said guide member cooperating with said cam gear via said lower spiral cam groove, and moving linearly in accordance with the rotation of the cam gear, said guide member having at an upper side a projection slidably fitted to said lower spiral cam groove, an opening at a central portion, a rack portion being formed at one end of the opening and an operation gear consisting of an upper gear portion and a lower gear portion, said lower gear portion being engaged with said rack portion;
• and
• an operation member connected to said guide member, for adjusting an inclination of a pickup feeding plate while moving in accordance with the linear movement of said guide member, said operation member being provided at one side with an operation rack engaged with said upper gear portion of said operation gear, said operation rack having at an upper face a stepped member having multistep on which an inclination adjusting rod projected from the pickup feeding is loaded.