Patent ID: 7823171

Claim:
A loading mechanism conveying discs of different diameters, characterized by comprising: a driving source; a first arm member rotating about a first fulcrum as a center; a second arm member rotating about a second fulcrum as a center; a cam mechanism rotating at least one of the first arm member and the second arm member by driving force generated by the driving source and by that rotation retaining and sending in the outer circumferential edge of the disc of respectively different diameters; and a third arm member rotating about a third fulcrum as a center; rotating irrespective of the first arm member and the second arm member; applying, to the disc, bias force opposing a sending-in movement of the disc by bias means; and retaining the outer circumferential edge of the disc, wherein, when the center portion of the disc overpasses a line obtained by connecting a contact portion of the first arm member to the disc and a contact portion of the second arm member to the disc toward the sending-in side of the disc, the retainment and conveyance of the disc by the first arm member, the second arm member and the third arm member are carried out, the loading mechanism further characterized in that the first arm member and the second arm member are linked by a link mechanism and thereby operate in conjunction with each other and that, the link mechanism is comprised of two link levers and a link connection axis linking those link levers; the cam mechanism is provided with a plurality of cam grooves, each of which is linked to each other, corresponding with the retainment and sending-in of the disc of different diameters; the link connection axis is inserted into the cam groove; the link connection axis slides inside the cam groove and thereby the link levers rotate and the rotations of the first arm member and the second arm member are caused in conjunction with the rotation of those link levers and thereby the retainment and sending-in of the disc of different diameters are carried out.