An object of the invention is to provide a disc drive device capable of
compulsively ejecting an optical disc by a manipulation function from the
outside to prevent information recorded on the optical disc mounted on
the disc drive device from being damaged. A disc drive device 1 for
loading and driving an optical disc D to record information thereon or
reproduce information recorded thereon comprises a manual ejection
prohibiting means 41. Excluding when a carrier block 13 of a head unit B
which has an optical pickup 12 is moved to a circumferential moving end
of the optical disc D and a corner portion 13A of the carrier block 13
presses a driven part 43, irrespective of whether or not there is an
intention for ejecting the optical disc D, even though an emergency pin P
is inserted into a through-hole 3c, the optical disc D is prevented from
being ejected.
