There is provided an optical disc drive that can guide the center of an optical disc to the position of a spindle motor, while allowing the number of components to be reduced. A base frame includes a stopper portion that comes into contact with an outer edge of the optical disc having reached the position of a spindle motor and that restricts backward movement of the optical disc. A switch arm includes a contact portion located on a side opposite to the stopper portion across the optical disc having reached the position of the spindle motor, and the switch arm uses the contact portion to push the optical disc toward the stopper portion.

A conveying roller position manipulation mechanism moves the position of a conveying roller between a first roller position where the conveying roller contacts an optical disc and a second roller position where the conveying roller is separated from the optical disc. A centering mechanism aligns the center of the optical disc with the position of a spindle motor. A chucking pulley operation mechanism manipulates the position of a chucking pulley configured to fix the optical disc to the spindle motor. The conveying roller position manipulation mechanism includes a rotary arm configured to move in response to a collision with the optical disc that approaches the position of the spindle motor, and at least one of the centering mechanism and the chucking pulley operation mechanism includes a member coupled to the rotary arm.

An electronic module ejecting mechanism includes a frame, a door pivoted to the frame, a rod, a sliding sheet slidably disposed on the door, a swing sheet, and a button connected to the sliding sheet. An electronic module is inserted into an opening of the frame. The rod is slidably disposed in the frame and has groove and bending ends. The swing sheet is pivoted to the sliding sheet and has a latch end for inserting into the groove end when the sliding sheet slides to a lock position. When the latch end is inserted into the groove end and the swing sheet swings to an expanding position with opening of the door, the latch end pulls the groove end to make the bending end push the electronic module to partially protrude from the opening. When the door continues opening outwardly, the latch end is separate from the groove end.

An electronic module ejecting mechanism includes a frame, a door pivoted to the frame, a rod, a sliding sheet slidably disposed on the door, a swing sheet, and a button connected to the sliding sheet. An electronic module is inserted into an opening of the frame. The rod is slidably disposed in the frame and has groove and bending ends. The swing sheet is pivoted to the sliding sheet and has a latch end for inserting into the groove end when the sliding sheet slides to a lock position. When the latch end is inserted into the groove end and the swing sheet swings to an expanding position with opening of the door, the latch end pulls the groove end to make the bending end push the electronic module to partially protrude from the opening. When the door continues opening outwardly, the latch end is separate from the groove end.

A DVD navigator based on a vehicle-mounted terminal is disclosed. The DVD navigator includes: a menu panel module, configured to generate a first level in response to reception of an unload instruction; and a quick-unload module, configured to acquire the first level in a sleep state of the DVD navigator and process the first level to generate a second level and a pulse signal so as to control the DVD navigator to quickly unload a disc according to the second level in the sleep state. By the aforesaid way, the present disclosure can effectively reduce the unload time of the DVD navigator by controlling the DVD navigator to quickly unload a disc in the sleep state after receiving the unload instruction.

A disc drive includes: a disc driver that plays a safely seated optical disc; and a disc mover that moves the disc driver. The disc driver and the disc mover are configured to share information of their respective states with each other.

A disc device includes a first traverse chassis holding a first optical pickup unit which performs recording/reproduction of information on a first surface of a disc, a second traverse chassis holding a second optical pickup unit which performs recording/reproduction of information on a second surface of the disc, and first and second biasing members which bias the first and second traverse chassis, respectively, in directions of coming closer to each other. The first and second traverse chassis are coupled to each other so as to turn around a turning axis at a rear side of a housing and extending in a width direction of the housing. At least one of the first and the second biasing members is attached while being inclined with respect to each of a conveying direction of the disc, and a thickness and the width directions of the housing.

An apparatus for changing a record comprising a record changing fork comprising first and second spaced apart tines arranged in a record plane and extending from a fork base to a fork mouth, each tine comprising a groove extending from the fork mouth at least part way to the fork base, the grooves being arranged to hold a record therebetween in the record plane; at least one tine comprising a resiliently deformable record gate, the record gate being adapted to prevent sliding of a record in the grooves past the record gate unless the record is slid with a force exceeding a threshold force; at least one shelf adapted to support a record, the width of the shelf being less than the separation between the tines; and, a control mechanism connected to the record changing fork.

An apparatus for changing a record comprising a record changing fork comprising first and second spaced apart tines arranged in a record plane and extending from a fork base to a fork mouth, each tine comprising a groove extending from the fork mouth at least part way to the fork base, the grooves being arranged to hold a record therebetween in the record plane; at least one tine comprising a resiliently deformable record gate, the record gate being adapted to prevent sliding of a record in the grooves past the record gate unless the record is slid with a force exceeding a threshold force; at least one shelf adapted to support a record, the width of the shelf being less than the separation between the tines; and, a control mechanism connected to the record changing fork.

An apparatus for changing a record comprising a record changing fork comprising first and second spaced apart tines arranged in a record plane and extending from a fork base to a fork mouth, each tine comprising a groove extending from the fork mouth at least part way to the fork base, the grooves being arranged to hold a record therebetween in the record plane; at least one tine comprising a resiliently deformable record gate, the record gate being adapted to prevent sliding of a record in the grooves past the record gate unless the record is slid with a force exceeding a threshold force; at least one shelf adapted to support a record, the width of the shelf being less than the separation between the tines; and, a control mechanism connected to the record changing fork.