Abstract: A robot system includes a robot main body, a sensor that detects a magnitude of an external force applied to the robot main body, a control unit that controls the robot main body, a reference value storage unit that stores a value of an external force detected by the sensor as a reference external force value in an operating state where only the weight of the robot main body and the load handled by the robot main body act on the robot main body, a determination unit that, during operation of the robot main body, determines that an external force other than the weight of the robot main body and the load acts on the robot main body when an absolute value of a difference between a value of an external force detected by the sensor and the stored reference external force value is larger than a predetermined threshold value.

Abstract: A robot system includes a robot main body, a sensor that detects a magnitude of an external force applied to the robot main body, a control unit that controls the robot main body, a reference value storage unit that stores a value of an external force detected by the sensor as a reference external force value in an operating state where only the weight of the robot main body and the load handled by the robot main body act on the robot main body, a determination unit that, during operation of the robot main body, determines that an external force other than the weight of the robot main body and the load acts on the robot main body when an absolute value of a difference between a value of an external force detected by the sensor and the stored reference external force value is larger than a predetermined threshold value.

Abstract: A vibration-damping mechanism for the drive chassis is configured in such a manner that insulators each are placed in at least three respective predetermined positions of a drive chassis on which a motor and an optical pickup unit are mounted, and a weight plate is floatingly and movably supported on the drive chassis by way of the insulators, wherein the shape of the weight plate is determined based on a predetermined vibration-damping frequency, the at least three respective predetermined positions, and a spring constant of the insulators which are identical to each other.

Abstract: A disk stopper (101) for regulating a loading position of the disk stopper, a stopper regulating member (102) that regulates a movable range of the disk stopper (101), and a link member (103) movable in association with the stopper regulating member (102), and a cam slider (30) engageable with the link member (103) are provided. When a small-diameter disk is inserted, the first engaging portion of the link member (103) and the first engaging portion of the cam slide (30) engage each other. When a large-diameter disk is inserted, the second engaging portion of the link member (103) and the second engaging portion of the cam slide (30) engage each other. Based on the engaging condition of the link member (103) and the cam slider (30), the stopper regulating member (102) switches the loading position of the disk medium regulated by the disk stopper (101).

Abstract: A traverse chassis supported in a swingable manner with respect to the main chassis and a disk transport plate provided along an opening are provided in the main chassis. The transport plate has a base part having a slender rectangular shape in plan view and a transport roller provided in the surface of the base part so as to extend in the longitudinal direction of the base part. The transport roller is provided such that its rotationally-moving shaft extends in parallel to an X direction, and an optical disk mounted on these components is loaded into or unloaded from an optical disk apparatus by rotation of the transport roller.

Abstract: A disk clamp mechanism includes a disk clamper (13), a main chassis (11), a disk clamper pushing member (14) and a resilient member (15). The disk clamper (13) has a contact surface (13a) contacting a disk, and a convex portion (13b) on a side opposite to the contact surface (13a). The main chassis (11) includes a frame body (11a) and a disk clamper holding member (11b) for holding the disk clamper (13). The disk clamper pushing member (14) has a pushing surface (14d) that pushes the convex portion (13b) of the disk clamper (13) toward the disk, and first and second end portions (14a, 14b) provided on both sides of the pushing surface (14d). The first end portion (14a) is swingably supported by the main chassis (11). The resilient member (15) urges the second end portion (14b) of the disk clamper pushing member (14) in the direction in which the pushing surface (14d) pushes the disk.

Abstract: An adjustment holding portion (21) for adjusting the inclination of a guide shaft (22) guiding an optical pickup (2) in a radial direction with respect to a base (1) is mounted to the base (22) at a first supporting point (1n), a second supporting point (23) and a third supporting point (24). When the optical pickup (2) is located at a first position on the inner circumference side of the optical disk, the shaft-receiving portion (2c) of the optical pickup (2) is located on a line connecting the first supporting point and the second supporting point. When the optical pickup (2) is located at a second position on the outer circumference side of the optical disk, the shaft-receiving portion (2c) of the optical pickup (2) is located on a line connecting the first supporting point and the third supporting point.

Abstract: Requirement: An object of the present invention is to provide a disk apparatus that includes a vibration-damping mechanism capable of substantially curbing vibrations due to eccentricity of the center of gravity of a discoid recording medium, caused to a drive chassis on which mounted are a motor for rotationally driving the discoid recording medium, and a record-playback unit for recording a digital signal onto and/or playing that back from the discoid recording medium.

Abstract: A disk loading device includes a driving roller (6) that rotates, and a disk guide (8) that holds an optical disk (3) between the driving roller (6) and the disk guide (8). The disk guide (8) includes a pressing portion (8a, 8b, 8c and 8d) disposed in opposition to the driving roller (6), a swinging shaft (8e, 8f) supported by a shaft receiving portion (11a, 11b), and a spring (10a, 10b) that urges the disk guide (8) toward the driving roller (6). The shaft receiving portion (11a, 11b) supports the swinging shaft (8e, 8f) so that an inclination of the disk guide (8) with respect to the rotation axis of the driving roller (6) is changeable.

Abstract: An optical disk device (1) includes a feed gear (64) that engages a rack portion (57a) integrally formed with an optical pickup (57), a tray gear (13) used for vertically moving a turntable (52) and moving a disk tray (12), and a motor (62) as a common driving source. The number of teeth of the feed gear (64) is the same as the number of teeth of the tray gear (13), and the rotation is transmitted from the feed gear (64) to the tray gear (13) so that the ratio of the number of rotations of the feed gear (64) to the number of rotations of the tray gear (13) is 1:1. With such an arrangement, it becomes possible to perform a pickup feeding operation, a turntable vertically-moving operation, and a disk carrying operation by one driving source, and it becomes possible to enhance ease of assembly.

Abstract: An adjustment holding portion (21) for adjusting the inclination of a guide shaft (22) guiding an optical pickup (2) in a radial direction with respect to a base (1) is mounted to the base (22) at a first supporting point (1n), a second supporting point (23) and a third supporting point (24). When the optical pickup (2) is located at a first position on the inner circumference side of the optical disk, the shaft-receiving portion (2c) of the optical pickup (2) is located on a line connecting the first supporting point and the second supporting point. When the optical pickup (2) is located at a second position on the outer circumference side of the optical disk, the shaft-receiving portion (2c) of the optical pickup (2) is located on a line connecting the first supporting point and the third supporting point.

Abstract: A traverse chassis supported in a swingable manner with respect to the main chassis and a disk transport plate provided along an opening are provided in the main chassis. The transport plate has a base part having a slender rectangular shape in plan view and a transport roller provided in the surface of the base part so as to extend in the longitudinal direction of the base part. The transport roller is provided such that its rotationally-moving shaft extends in parallel to an X direction, and an optical disk mounted on these components is loaded into or unloaded from an optical disk apparatus by rotation of the transport roller.

Abstract: A disk loading apparatus includes a tray (2) on which a disk is placed, a main chassis (1) into which the tray (2) is inserted and from which the tray (2) is ejected, a first horizontal guide (1a) provided on the main chassis (1) to guide the tray (2) in an insertion/ejection direction, and a to-be-guided portion (2b) provided on the tray (2). A sliding portion (2d) provided on the to-be-guided portion of the tray (2) contacts an inclined surface of a contact portion (10a) formed on (or provided adjacent to) the first horizontal guide (1a), so as to restrict the displacement of the tray (2) in the direction perpendicular to the insertion/ejection direction in a plane parallel to the disk surface using the weight of the tray (2).

Abstract: A disk stopper (101) for regulating a loading position of the disk stopper, a stopper regulating member (102) that regulates a movable range of the disk stopper (101), and a link member (103) movable in association with the stopper regulating member (102), and a cam slider (30) engageable with the link member (103) are provided. When a small-diameter disk is inserted, the first engaging portion of the link member (103) and the first engaging portion of the cam slide (30) engage each other. When a large-diameter disk is inserted, the second engaging portion of the link member (103) and the second engaging portion of the cam slide (30) engage each other. Based on the engaging condition of the link member (103) and the cam slider (30), the stopper regulating member (102) switches the loading position of the disk medium regulated by the disk stopper (101).

Abstract: An object of the present invention is to perform a pickup feed operation and a turntable raising/lowering operation by the use of a rotatable drive source mechanism (54) for rotatably driving an optical disk including, for example, a CD while avoiding interference between an optical pickup (57) and the same drive source (54) in an optical disk device (1) for recording and reproducing a signal on the optical disk. To accomplish the above-mentioned object, a dual-purpose drive source mechanism (62, 64, 65, 66, 67, 68) generates a driving force for a pickup drive mechanism (57a) and a turntable raising/lowering mechanism (51c, 15).

Abstract: A disk device includes a traverse chassis (20) that supports a turn table (30) or the like, and a main chassis (10) that rotatably supports the traverse chassis (10). The traverse chassis (20) has two coaxial bosses (21a, 21b). The main chassis (10) has two boss supporting portions (1a, 1b) that support the bosses (21a, 21b) of the traverse chassis (20). Protrusions (22a, 22b) are formed on the tips of the bosses (21a, 21b). The protrusions (22a, 22b) abut against the boss supporting portions (1a, 1b), so as to prevent the deformation of the boss supporting portions (1a, 1b) in the directions away from each other, with the result that the dropping of the traverse chassis (20) from the main chassis (10) is prevented.

Abstract: A disk clamp mechanism includes a disk clamper (13), a main chassis (11), a disk clamper pushing member (14) and a resilient member (15). The disk clamper (13) has a contact surface (13a) contacting a disk, and a convex portion (13b) on a side opposite to the contact surface (13a). The main chassis (11) includes a frame body (11a) and a disk clamper holding member (11b) for holding the disk clamper (13). The disk clamper pushing member (14) has a pushing surface (14d) that pushes the convex portion (13b) of the disk clamper (13) toward the disk, and first and second end portions (14a, 14b) provided on both sides of the pushing surface (14d). The first end portion (14a) is swingably supported by the main chassis (11). The resilient member (15) urges the second end portion (14b) of the disk clamper pushing member (14) in the direction in which the pushing surface (14d) pushes the disk.

Abstract: An optical disk device (1) includes a feed gear (64) that engages a rack portion (57a) integrally formed with an optical pickup (57), a tray gear (13) used for vertically moving a turntable (52) and moving a disk tray (12), and a motor (62) as a common driving source. The number of teeth of the feed gear (64) is the same as the number of teeth of the tray gear (13), and the rotation is transmitted from the feed gear (64) to the tray gear (13) so that the ratio of the number of rotations of the feed gear (64) to the number of rotations of the tray gear (13) is 1:1. With such an arrangement, it becomes possible to perform a pickup feeding operation, a turntable vertically-moving operation, and a disk carrying operation by one driving source, and it becomes possible to enhance ease of assembly.

Abstract: A disk clamper (100) includes a clamper main body (1) and a lid body (2) that holds an attraction member (3) such as a magnet or the like between the clam main body (1) and the lid body (2). The clamper main body (1) includes a peripheral wall (12) whose outer peripheral surface constitutes a cylindrical surface. The lid body (2) includes a peripheral wall (22) fitted on the outside of the peripheral wall (12) of the clamper main body (1). Engaging claws (13) are formed on and protruded from the outer peripheral surface of the peripheral wall (12). Engaging claws (23) are formed on the inner peripheral surface of the peripheral wall (22). The clamper main body (1) and the lid body (2) can be integrated by fitting the peripheral wall (22) to the outside of the peripheral wall (12) in a state where the circumferential positions of the engaging claws.

Abstract: A main chassis supports a tray that carries a disk thereon and moves between a disk-discharging position and a disk-loading position. A motor is mounted on the main chassis and has a rotating shaft. A worm is formed on the rotating shaft. A drive gear rotatably is mounted on the main chassis and has a pinion gear and a worm wheel in mesh with the worm. The pinion gear is in mesh with a rack formed in the tray. The worm preferably satisfies a dimensional condition ?o>Tan?1(?/Cos ?n) where ?o is a lead, ? is friction coefficient, and ?n is normal pressure angle. The worm has a lead angle ?o greater than 15°. The rotating shaft extends in a direction at an angle with a plane in which the drive gear rotates.