Patent ID: 6226250
Filing Date: 2001-05-01
Classification: G11B

Abstract:
A loading mechanism of disk type data storage device for accessing data from a disk, comprising:a main chassis having a sliding slot and a rotating shaft;a disk tray, insertably mounted to the main chassis for the loading of the disk, including a projected sheet, an elongated cam, and a rack;an optical pick-up module, mounted to the main chassis, for data-saving and data-accessing from the disk;a height controlling arm to control the height of the optical pick-up module by;a gear transmission module to drive the retractable movement of the disk tray and to drive the height controlling arm to rotate;a motor for driving the transmission gear module;a sliding rack having a hole and being contained within the sliding slot of the main chassis and being moved by the transmission gear module so as to drive the height controlling arm;a first detecting switch to stop the motor by triggering the height controlling arm after the disk tray is fully loaded into the main chassis; anda second detecting switch to stop the motor by triggering the disk tray after the disk tray is fully unloaded from the main chassis; wherein the height controlling arm has a front, a rear and two terminal ends and includes:a central hole adapted for the rotating shaft of the main chassis so that the height controlling arm rotates about the central hole with the rotating shaft;a pair of height controlling cams vertically mounted to the two terminal ends at the front of the height controlling arm, said cams having opposite inner side face and outer side face to drive the height of the optical pick-up module;a first and second lateral board being respectively and vertically mounted to the outer side face of the height controlling cam;a first pin vertically mounted to the first lateral board for driving the projected sheet of the disk tray and being drivable by the projected sheet so as to control the height of the optical pick-up module and the retractable movement of the disk tray;a second pin vertically mounted to the second lateral board and movably contained in the elongated cam to restrict the moving direction of the height controlling arm to stably support and guide the optical pick-up module; anda third pin mounted at the rear of the height controlling arm and contained in the hole of the sliding rack to control the movement of the sliding rack.