Patent ID: 7426741
Filing Date: 2008-09-16
Classification: G11B

Abstract:
1. A disk device comprising: a rectangular box-shaped housing made of synthetic resin that includes a roof plate portion, a bottom plate portion and a front face plate portion; a unit body that is arranged in the housing while the unit body is being made to come close to one side wall of the roof plate portion and the bottom plate portion; an audio/visual printed circuit board and a rectangular-plate-shaped primary printed circuit board having electronic parts that are arranged upward and downward in a periphery of the unit body in the housing while leaving a predetermined interval between the audio/visual printed circuit board and the primary printed circuit board in the vertical direction, wherein: a flexible cable a flexible cable with first and second ends, one end of which is connected to the primary printed circuit board on the upper side, the other end is connected to the audio/visual printed circuit board on the lower side; the primary printed circuit board is put on a plurality of leg rods integrally protruding from the bottom plate portion; a central insertion hole, which is one of three insertion holes formed in the three corners of the primary printed circuit board, is engaged with an engaging pin integrally protruding from an upper surface of one of the leg rods; when a screw is screwed into a screw hole of one of the leg rods through one of two insertion holes opposed to each other along the a diagonal line, the primary printed circuit board is fixed coming close to the other side wall of the roof plate portion and the bottom plate portion; the unit body includes a main chassis for supporting a disk tray so that the disk tray can be moved forward and backward and also includes a drive chassis, which is pivotally supported by the main chassis so that the drive chassis can be moved upward and downward, on which an optical pickup and a turntable are mounted, when a drive chassis is moved downward according to an unloading signal in a play mode in which the disk is rotated by the turntable at high speed and information recorded on the disk is read out by the optical pickup, the disk is delivered from the turntable to the tray, after that, the tray is advanced through a disk output port in the front face plate portion, the disk is picked up from the tray and a new disk is put on the tray, when the chassis is stopped in the downward state by turning off the electric power source and the tray is forcibly pushed onto the rear side, the tray is returned into the housing; a holding rod is integrally protruded from the roof plate portion being opposed to one of two insertion holes that are opposed to each other along the diagonal line; a holding pin protruded from a lower surface of the holding rod is engaged with an engaging hole of one of the leg rods through the other of one of two insertion holes that are opposed to each other along the diagonal line; a small gap is formed between a lower surface of the holding rod and the primary printed circuit board; an electrostatic prevention plate, the width of which is wider than that of the printed circuit board, is hung from the roof plate portion coming close to the other side wall of the roof plate portion and the bottom plate portion; a lower end of the electrostatic prevention plate is extended to a periphery of the primary printed circuit board and comes close to a rear portion of the tray accommodated in the housing; a protruding portion is integrally protruded from the roof plate portion; and a lower end of the protruding portion is positioned at a position lower than an upper surface of the tray.