摘要:
A flexible magnetic disk drive to be mounted between, and fastened to, a pair of opposed holder plates forming parts of the housing of a data processing instrument such as a computer or word processor. The disk drive has a base structure comprising a platform, on which there are mounted such standard components as a drive drive mechanism and a head transport mechanism, and a pair of side walls on the opposite sides of the platform. Usually in the form of an aluminum die casting, the base structure would suffer deformation if it were fastened directly to the holder plates, due to positional errors between their screw holes. The deformation of the base structure is avoided by coupling the base structure to the holder plates via a pair of connectors which are fastened to the opposite side walls of the base structure. Each connector has a pair of lugs each having a hole formed therethrough for receiving screws or like fastener elements passing through holes in the holder plates. Being less in rigidity than the base structure and the holder plates, the connector lugs are deformable to take up possible positional errors between the connector lug holes and the holder plate holes.
摘要:
An information processing apparatus such as a computer of the class for office and home use is disclosed which employs a magnetic disk cartridge as an information storage medium, together with a disk drive assembly for information transfer with the disk cartridge. The apparatus has a housing having defined therein a disk drive compartment, in which there is accommodated the disk drive assembly inclusive of its own enclosure having an entrance slot for the insertion of the disk cartridge. Upon full insertion of the disk drive assembly into the disk drive compartment, the disk drive assembly is locked into position by a locking lever which, under the influence of a cantilever spring, engages a first opening in the disk drive assembly. The disk drive assembly may later be disengaged from the disk drive compartment by inserting a tripping tool through the entrance slot and a second opening in the disk drive assembly and exerting a force against the locking levers opposite to the force of the cantilever spring to disengage the locking lever from the disk drive assembly, thus permitting ready withdrawal of the disk drive assembly from the disk drive compartment of the information processing apparatus as for maintenance purposes.
摘要:
A data transfer apparatus employs a pair of magnetic transducer heads for contact with the opposite faces of a magnetic disk for data transfer. The magnetic disk is rotatably housed in a relatively rigid envelope to make up an interchangeable disk cartridge, with the envelope having a shutter openable to expose parts of the opposite faces of the magnetic disk for data transfer contact with the transducer heads. The apparatus has a cartridge cradle movable between a first position where the disk cartridge is loaded on and unloaded from the same, and a second position where the loaded disk cartridge engages wtih a disk drive mechanism to be driven thereby. The cartridge cradle is dually locked against accidental travel from the first to the second position, in order to prevent the collision of the pair of transducer heads with each other. As the second locking mechanism, in addition to the first which is normally employed for latching the cartridge cradle in the first position, a lever for opening the shutter of the disk cartridge is adapted to positively lock the cradle in the first position even if the first locking mechanism is tripped accidentally.
摘要:
An all-directional optical sensor apparatus 8 includes an all-directional prism 20 which has a cylindrical-shaped body with a hollow-out cone section formed in its top surface 22. The surface 28 of the cone works as a reflector 30 for rays received through side surfaces 24 of the cylindrical-shaped body. An optical sensing element is disposed adjacent to a bottom surface 26 of the prism 20. A roof plate 40 having a dimension larger than the top surface 22 of the prism is arranged for shielding the entry of any light other than an input signal into an upper portion of the prism 20.
摘要:
An objective lens drive apparatus applicable to an optical disk apparatus includes a base member disposed so as to oppose a recording surface of an optical disk and so as to be movable in a direction of a radius of the optical disk, a support mechanism supporting an objective lens on the base member and so as to be movable in the direction of the direction of the radius of the optical disk. The objective lens drive apparatus also includes a drive mechanism acting upon the support mechanism to move the objective lens on the base member, a displacement detector detecting a displacement of the objective lens on the base member, a controller controlling the drive mechanism so that the objective lens is maintained at a required position on the base member.
摘要:
A magneto-optical disk storage has an erroneous insertion preventing mechanism which projects into a holder so that it can touch the magneto-optical disk cartridge in order to prevent the same from being inserted. The erroneous insertion preventing mechanism mechanically engages with the magneto-optical disk cartridge and moves in a direction approximately vertical to the recording suface of the magneto-optical disk to allow the magneto-optical disk cartridge to be inserted only if the magneto-optical disk cartridge is being inserted into the holder with a correct orientation.
摘要:
A head carriage mechanism of a magnetic recording/reproducing apparatus including a single guide rod fixed on a frame of the apparatus, a head carriage having a first side in which the guide rod is passed through, a rack of teeth provided on the head carriage at a second side opposing the first side side, a mounting member fixed on the frame, a stepping motor provided with a pinion gear and mounted on the mounting member such that the pinion gear is meshed with the rack teeth, a leaf spring configured to have a U-shaped cross section and mounted on the mounting member such that the leaf spring makes a slide engagement with a part of the head carriage so that the rack teeth and the pinion gear are pressed to each other, and a wear resistant slide member provided at the part of the head carriage in which the leaf spring makes the slide engagement with the head carriage. The leaf spring is mounted on the mounting member with such an orientation that the leaf spring extends perpendicularly to the predetermined direction along which the head carriage is slid.