US 7,543,311 B2
Disk unit
Tomonori Nakada, Tokorozawa (Japan)
Assigned to Pioneer Corporation, Tokyo (Japan)
Filed on Mar. 31, 2005, as Appl. No. 11/94,514.
Claims priority of application No. 2004-103616 (JP), filed on Mar. 31, 2004.
Prior Publication US 2005/0276182 A1, Dec. 15, 2005
Int. Cl. G11B 7/00 (2006.01); G11B 17/03 (2006.01)
U.S. Cl. 720—677  [720/703; 720/700] 14 Claims
OG exemplary drawing
 
1. A thin slot-in disc unit for a disc recording medium, comprising:
a casing having an opening through which the disc recording medium is inserted and ejected;
a mount rotatably disposed in the casing and including a supporting portion for the disc recording medium to rotate thereon, the mount constituting a rotating body that is rotated between an advanced position and a retracted position relative to the casing;
a moving unit disposed in the casing for rotating the mount such that the supporting portion is advanced onto and retracted from a moving path of the disc recording medium;
an information processing section for performing at least one of a reading processing that reads out information recorded on a recording surface of the recording medium and a recording processing that records information on the recording surface;
a processor moving unit directly and integrally attached to a bottom plate of the casing for moving the information processing section along the recording surface of the disc recording medium, wherein the processor moving unit does not move together with the rotation of the mount; and
a guide for guiding the movement of the information processing section, wherein:
the information processing section includes a locking portion,
the processor moving unit includes an electric motor that is integrally attached on the bottom side of the casing and a screw elongated along the moving direction of the information processing section, the locking portion being engaged with a spiral engaging section of the screw, the screw being driven by the electric motor around an axial direction as a rotation axis, and
the mount is moved to the retracted position when the disc recording medium is inserted and ejected through the opening and is moved to an advanced position when the disc recording medium is supported by the supporting portion.