Abstract: The invention provides a practical optical disk device having a downsized means for elevating a movable chassis including a pickup and a turntable, wherein the movable chassis is positioned stably while recording or reproducing data. A movable chassis 20 can be moved up and down via a supporting point 52 provided on a rear side 21, and has two projections 23 formed on a front wall 22 of the movable chassis 20, wherein one of the projections 23 is slidably engaged with a guidance slot 41 formed to an elevating plate 40 opposed thereto, by which the movable chassis 20 is moved up and down, and the other projection 23 is engaged with an engagement groove 47 formed separately from the slot when the first projection 23 is engaged with one end of parallel portions 44 extended from both ends of the guidance slot 41 to thereby support the movable chassis 20 in a stable manner.

Abstract: The invention provides a disk device that is excellent in strength, an easy installation and adjustment performed in the manufacturing process, an easy maintenance and repair work performed, and the safety during repair and maintenance work further achieving a cost reduction. A clamper 41 is provided and a board 12 having an area in which at least the irradiation range of laser light emitted by an optical pickup is covered is fixed to a frame 11 that constitutes a disk device 1 by screwing or the like, thereby improving the strength, safety, and workability of the disk device 1.

Abstract: The present invention provides ease of attachment and adjustment in manufacturing steps and ease of maintenance, repair work, and safety, and eliminate necessity for jig substrate for adjustment so as to reduce cost. In a disk device 1 provided with a pickup unit and a traverse unit, wherein a pickup substrate and the like is electrically connected to the control substrate 12 after the control substrate 12 is placed at the top of the disk device, the pickup unit is adjusted after a short-circuit between an anode electrode and cathode electrode of a laser light-emitting element provided in the pickup unit is disconnected, and the operation of the pickup unit in the adjusting step is controlled using the control substrate 12. After the pickup unit is adjusted, the control substrate 12 is attached to the top end of side walls on both sides of a frame 11 and placed at the top of the disk device 1.

Abstract: The present invention provides a disk device including an alarm indicating portion that forms a high-visibility indicating portion in the disk device, which give a warning about directly viewing a laser beam of the disk device when the disk device is disassembled. A high-visibility protruding indicating portion 17 is formed near a pickup lens 14A and in a rear side of a tray 11 in a disk device 10 in which the pickup lens 14A irradiates a laser beam to a recording surface of a disk placed on the tray 11 carried into/out of the disk device 10 to perform recording/reading, thereby preventing the irradiated laser beam from being viewed.

Abstract: The invention provides a disk device having a reinforcing structure that is excellent in strength and that prevents the disk device from deforming due to the deforming of a casing of the electronic device, or due to heat generated by various devices and components built into the electronic device. Reinforcing portions 12, formed to have a double rib structure with an angulated U-shape cross-section, are formed between front leg portions 11F and rear leg portions 11R, integrally formed to the frame 10A constituting the disk device respectively, whereby deformation of the frame 10A constituting the disk device is prevented.

Abstract: To provide a disk device provided with a tray removal prevention mechanism which can easily perform mounting and dismounting of a tray in a short time with a simple mechanism while preventing deformation and rupture of the tray, the tray removal prevention mechanism includes opening portions respectively formed on both sides of a rear portion of the tray, resiliently deformable arms extending from rear end edges of the opening portions, the arm having a hook portion having a contact surface on a front surface thereof in a distal end portion, the hook portion having an engagement release lever erected upwardly, and stoppers formed on a device body side with which the contact surfaces of the hook portions are brought into contact, thereby preventing the removal of the tray from the device body when the tray is unloaded.

Abstract: The invention is intended to provide a pickup shift device capable of shifting operation with high precision without imposing a load on a drive transmission mechanism, such as a rack, pinion, and so forth, all the time. Abase stand fixed to a pickup unit has a slide face part extended toward the side thereof, and on the upper face of the base stand, there are provided a cam follower member and a spring member. A shift rack is provided on the slide face part in such a way as to overlap the latter, and slidably in the shift direction of the pickup unit, and the shift rack is provided with a cam. The cam has a cam face formed so as to have a curvature, and by fitting a cam follower member to the curvature to be pressed into contact therewith by a spring member, the base stand and the shift rack are retained at a predetermined position.

Abstract: To provide a disc changer capable of working without any malfunctions in spite of a reduced number of switches, it includes a mode-detecting mechanism having means for identifying an operation, cams respectively operated by powers supplied from a first and second motors, each cam provided with said identifying means, sensors for detecting said identifying means moving according to the operation of said cam, each composed of a set of a light-emitting element and a light-receiving element, a control section for receiving operation signals detected by said sensors to control the operation of the disc changer, and transmission gears for driving said cams, said transmission gears interlocking with a transporting gear meshing with a rack of said main tray for carrying the main tray out with the subtray put thereon.

Abstract: To achieve a disc device with a disc changer in which number of motors is reduced, and a quiet and stable switching operation, accurate positioning of a sub-tray, smooth damp and release of a disc are possible, only a first motor for driving a main tray and a second motor for driving the sub-tray are used as driving sources, and a gear switching mechanism is provided, in which driving channels of the first and second motors can be disconnected.

Abstract: A video recorder housing has a pivoting gate to open and close the cassette slot of the video recorder. The pivoting gate has a movable hook secure to its rear side. When a video cassette is inserted into the cassette slot to be loaded into the housing, the movable hook partially appears from the lower edge of the pivoting gate, and the pivoting gate remains partially open with the protruding hook resting on the upper surface of the video cassette. The partially open pivoting gate exposes the label of the video cassette to be seen from the outside.

Abstract: Disclosed is an improved video recorder housing having a main-and-auxiliary pivoting gate assembly to open and close its front cassette slot. The housing has a chamfered cassette guide extending inward from the lower edge of the cassette slot. The housing has a horizontal pin positioned inside and above the cassette slot. The main gate is attached to rotate about the horizontal pin and is spring-biased toward its closing position. The main gate has a sub-horizontal pin and an inverted “L”-shaped lever both operatively connected to control the degree of opening of the auxiliary gate. The auxiliary gate is spring-biased toward its closing position, and can be rotated about the sub-horizontal pin while the inverted “L”-shaped lever rolls on the ceiling of the housing. With this arrangement, the main gate is kept half open with its lower edge caught by the upper surface of a videocassette loaded inside the video recorder.

Abstract: A video recorder housing has a pivoting gate to open and close the cassette slot of the video recorder. The pivoting gate has a movable hook secure to its rear side. When a video cassette is inserted into the cassette slot to be loaded into the housing, the movable hook partially appears from the lower edge of the pivoting gate, and the pivoting gate remains partially open with the protruding hook resting on the upper surface of the video cassette. The partially open pivoting gate exposes the label of the video cassette to be seen from the outside.

Abstract: Disclosed is an improved video recorder housing having a main-and-auxiliary pivoting gate assembly to open and close its front cassette slot. The housing has a chamfered cassette guide extending inward from the lower edge of the cassette slot. The housing has a horizontal pin positioned inside and above the cassette slot. The main gate is attached to rotate about the horizontal pin and is spring-biased toward its closing position. The main gate has a sub-horizontal pin and an inverted “L”-shaped lever both operatively connected to control the degree of opening of the auxiliary gate. The auxiliary gate is spring-biased toward its closing position, and can be rotated about the sub-horizontal pin while the inverted “L”-shaped lever rolls on the ceiling of the housing. With this arrangement, the main gate is kept half open with its lower edge caught by the upper surface of a videocassette loaded inside the video recorder.