摘要:
A magnetic head carriage device which comprises a head carriage body provided on a magnetic disk drive apparatus slidably in a radial direction of a magnetic disk and in parallel to a guiding axis, an upper arm provided on the head carriage body to have an upper magnetic head on its lower surface, and a plurality of bearing members each having an annular bearing portion and a mounting arm, the annular bearing portion into which a guiding shaft is inserted along the guiding axis, the mounting arm portion extending outwardly from the annular bearing portion, the mounting arm portion of each of the bearing members being fixed to the head carriage body such that the annular bearing portions are located laterally from the head carriage body. The magnetic disk drive apparatus employing this magnetic head carriage device can be constructed to suit the demands in the field, especially one having an overall thickness smaller than that of a conventional magnetic disk drive apparatus.
摘要:
A magnetic disc unit into and from which a disc case housing a magnetic disc is loaded and ejected includes a chassis, a magnetic head, a slide member being capable of sliding between a first position and a second position, a latch member fixing said slide member at the first position when the disc case is ejected, being pushed by the disc case inserted in said magnetic disc unit at a time of inserting the disc case and fixing said slide member at the second position when the disc case is loaded into said magnetic disc unit and is positioned at a predetermined set position, an arm member rotated by a sliding operation of said slide member, a clamping member clamping the magnetic disc housed in the disc case and a connection mechanism making said clamping member clamp the magnetic disc when said arm member is positioned at a second rotation position and separating said clamping member from the magnetic disc when said arm member is positioned at a first rotation position.
摘要:
A flexible magnetic disk drive is disclosed which has a stepper motor coupled to a data transducer via a steel belt motion translating mechanism for moving the transducer from track to track on the rotating disk in response to stepping pulses and a stepping direction signal from an external host system. In order to save power, the stepper motor is held deenergized while the disk drive motor is out of rotation, with the consequent possibility that the transducer may be displaced from the required track position on the disk while the stepper motor is held deenergized. Therefore, in order to always memorize the latest of the successive destination tracks commanded by the host system, a forward/backward counter is provided which counts the external stepping pulses in either direction depending upon the binary state of the external stepping direction signal. After the disk drive motor is set into rotation, stepping pulses and an stepping direction signal are generated internally for causing the stepper motor to automatically reposition the transducer on the memorized latest destination track.
摘要:
A disk driver in which a disk is inserted has a head (12), a holder (5), and a slider (14). The holder ascends and descends between a first position and a second position. The head ascends and descends between a third position and a fourth position in response to the ascending and descending of the holder. The disk (3) is inserted into or ejected from the holder (5) at the first position when the head (12) is at the third position, and information is recorded on or reproduced therefrom by the head at the fourth position when the holder is at the second position. Since the third position is higher than the first position so that the head does not hit the inserted disk, there is a space between the first and third positions. Accordingly, the slider (14) is located in the space so that it can avoid hitting the head, and thus the disk driver can be made thin.
摘要:
A small steam generator uses a cylindrical steam generation vessel having a steam generation portion formed to store an amount of water for generating steam and a steam passage portion formed on the upper end of the steam generation portion for spouting steam generated in the steam generation portion. A heater element is disposed within the steam generation vessel, and an induction heating coil is wound around the periphery of the steam generation vessel for energizing the heater element. The heater element is energized by supply of electric power to the heating coil so that steam generated by boiling of the water in the steam generation portion spouts upward from the steam passage. In the steam generator, a steam discharge duct is mounted on the upper end of the steam passage for receiving the steam spouting upward from the steam passage and to discharge it in a lateral direction such that drops of hot water adhered to a ceiling surface of the discharge duct fall and re-circulate back into the steam generation part.
摘要:
The present invention provides carboxymethylcellulose or a salt thereof that can prevent defects such as streaks and pinholes from occurring in the obtained electrode when it is used as a binder for an electrode of a nonaqueous electrolyte secondary battery. The present invention provides carboxymethylcellulose or a salt thereof of which ratio of a dry mass A to a dry mass B is less than 50 ppm when 2 liters of a 0.3 mass % aqueous solution of the dry mass B of the carboxymethylcellulose or a salt thereof is prepared, the entire amount of the aqueous solution is filtrated through a 250-mesh filter under a reduced pressure of −200 mmHg, and the dry mass A of a residue on the filter is measured after filtration. The applications of the carboxymethylcellulose or a salt thereof are also provided.
摘要:
A secondary battery having high heat dissipation ability is provided. A secondary battery including a plurality of positive electrodes and a plurality of negative electrodes in an outer package, wherein the plurality of positive electrodes are connected to each other outside the outer package without being connected to each other inside the outer package, or wherein the plurality of negative electrodes are connected to each other outside the outer package without being connected to each other inside the outer package, or wherein the plurality of positive electrodes are connected to each other outside the outer package without being connected to each other inside the outer package and the plurality of negative electrodes are connected to each other outside the outer package without being connected to each other inside the outer package. In addition, the secondary battery, wherein the plurality of positive electrodes are connected to each other outside the outer package without being connected to each other inside the outer package, the outer package includes an electrolytic solution containing an additive, the plurality of positive electrodes contain lithium, and the plurality of positive electrodes are connected to each other outside the outer package after a potential is applied to at least one positive electrode between the plurality of positive electrodes until a potential equal to or less than a potential at which the additive is reductively decomposed is reached.
摘要:
Provided is a polylactic acid-based polyol composition in which a catalyst that remains in the polylactic acid-based polyol and that acts also as a catalyst for urethane formation has been deactivated by easy means. Thus, the polylactic acid-based polyol composition suffers from little influence of the catalyst on urethane formation. When the polylactic acid-based polyol composition is used as a raw material for a urethane resin, therefore, uniform molded products can be obtained. Also provided are a process for the production of the polylactic acid-based polyol composition, a urethane resin composition obtained using the polylactic acid-based polyol composition, a process for the production of the same, and molded products thereof. The polylactic acid-based polyol composition is a composition which comprises both a polylactic acid-based polyol prepared by transesterification and a silica compound and in which the silica compound has a surface area of 40 m2 or more based on 100 g of the polylactic acid-based polyol and a content of the silica compound is 70 wt % or less.