摘要:
In a magnetic tape drive for a single-reel type magnetic tape cartridge having a leader block coupled to a leading end of a magnetic tape wound therein, a hub for winding the tape pulled out of the cartridge is disposed at rear side of a magnetic head unit for writing data on and reading data from the tape, and has a radial slot formed therein for receiving the leader block of the tape threaded through the unit. The rotational direction of the hub is determined such that the leader block is subjected to an radially-inward force in the slot of the hub at the beginning of a rotational movement of the hub, whereby slippage of the leader block from the slot of the hub can be prevented. A flat flexible printed-circuit cable is used in the drive to establish an electrical connection between a magnetic head of the unit and an amplifier printed-circuit board thereof, and includes a flexible plate having circuit patterns formed on the side faces thereof and connected to each other by through-holes formed therein, and connectors provided on the side faces of the plate and disposed at the ends thereof. The plate is symmetrically shaped with respect to a geometrical center thereof, and the connectors are symmetrically disposed thereto.
摘要:
Disclosed herein is a magnetic tape unit having a magnetic head for reading and writing data from and onto a magnetic tape. The magnetic tape is traveled in contact with the magnetic head during a read/write operation of the magnetic head. During a rest period where the read/write operation of the magnetic head is not performed, a reciprocating motion of the magnetic tape by a small distance is performed with a predetermined period. A temperature in the vicinity of the magnetic head is detected by a temperature sensor. The predetermined period is changed according to the temperature detected by the temperature sensor. Accordingly, the adhesion of the magnetic tape to the magnetic head can be well prevented irrespective of the temperature inside the tape unit.
摘要:
Disclosed herein is a magnetic tape unit having a magnetic head for reading and writing data from and onto a magnetic tape. The magnetic tape is traveled in contact with the magnetic head during a read/write operation of the magnetic head. During a rest period where the read/write operation of the magnetic head is not performed, a reciprocating motion of the magnetic tape by a small distance is performed with a predetermined period. A temperature in the vicinity of the magnetic head is detected by a temperature sensor. The predetermined period is changed according to the temperature detected by the temperature sensor. Accordingly, the adhesion of the magnetic tape to the magnetic head can be well prevented irrespective of the temperature inside the tape unit.
摘要:
A magnetic tape unit with a magnetic head for reading and writing data from and onto a magnetic tape. The magnetic tape is kept in constant contact with the magnetic head, and a reel motor travels the magnetic tape kept in contact with the magnetic head. Adhesion of the magnetic tape to the magnetic head is prevented by slowly driving the reel motor to travel the magnetic tape at a speed lower than a normal traveling speed for a read/write operation of the magnetic head, during a rest period when the read/write operation of the magnetic head is not performed.
摘要:
In a magnetic tape drive for a single-reel type magnetic tape cartridge having a leader block coupled to a leading end of a magnetic tape wound therein, a hub for winding the tape pulled out of the cartridge is disposed at rear side of a magnetic head unit for writing data on and reading data from the tape, and has a radial slot formed therein for receiving the leader block of the tape threaded through the unit. The rotational direction of the hub is determined such that the leader block is subjected to an radially-inward force in the slot of the hub at the beginning of a rotational movement of the hub, whereby slippage of the leader block from the slot of the hub can be prevented. A flat flexible printed-circuit cable is used in the drive to establish an electrical connection between a magnetic head of the unit and an amplifier printed-circuit board thereof, and includes a flexible plate having circuit patterns formed on the side faces thereof and connected to each other by through-holes formed therein, and connectors provided on the side faces of the plate and disposed at the ends thereof. The plate is symmetrically shaped with respect to a geometrical center thereof, and the connectors are symmetrically disposed thereto.
摘要:
A method and a system for stabilizing the sight line of a chip component being carried on two discs, for stabilizing delivery of the chip component between the two discs, and improving and stabilizing the inspection accuracy in the visual check of the chip component. This is achieved by employing a mechanism for carrying the chip component while supporting it on the horizontal plane of the first rotary disc and then carrying the chip component while suction-holding it on the vertical plane of the second rotary disc. When the chip component is carried on the first rotary disc, the upper surface and one side face of the chip component are imaged by first and second cameras. When the chip component is carried on the second rotary disc, the lower surface and the other side face of the chip component are imaged by third and fourth cameras.
摘要:
A method and a system for stabilizing the sight line of a chip component being carried on two discs, for stabilizing delivery of the chip component between the two discs, and improving and stabilizing the inspection accuracy in the visual check of the chip component. This is achieved by employing a mechanism for carrying the chip component while supporting it on the horizontal plane of the first rotary disc and then carrying the chip component while suction-holding it on the vertical plane of the second rotary disc. When the chip component is carried on the first rotary disc, the upper surface and one side face of the chip component are imaged by first and second cameras. When the chip component is carried on the second rotary disc, the lower surface and the other side face of the chip component are imaged by third and fourth cameras.
摘要:
The present invention provides a fuel spray apparatus for a gas turbine engine, including: a pilot part configured to spray a fuel to be used for a diffusion combustion; a main part provided so as to surround the pilot part and configured to inject a pre-mixed gas only upon a high power operation; and a shield body constituting a purge air passage which is configured to take therein an air flowed on an upstream side relative to a fuel injection port of the main part as a purge air, and to blow off a fuel dripping from the fuel injection port toward a main air passage of the main part. The purge air passage is provided in a position opposite to a main fuel passage communicated with the fuel injection port across the shield body.
摘要:
In a method of fabricating a semiconductor device having a MISFET of trench gate structure, a trench is formed from a major surface of a semiconductor layer of first conductivity type which serves as a drain region, in a depth direction of the semiconductor layer, a gate insulating film including a thermal oxide film and a deposited film is formed over the internal surface of the trench, and after a gate electrode has been formed in the trench, impurities are introduced into the semiconductor substrate of first conductivity type to form a semiconductor region of second conductivity type which serves as a channel forming region, and impurities are introduced into the semiconductor region of second conductivity type to form the semiconductor region of first conductivity type which serves as a source region.
摘要:
A method and a system for stabilizing the sight line of a chip component being carried on two discs, for stabilizing delivery of the chip component between the two discs, and improving and stabilizing the inspection accuracy in the visual check of the chip component. This is achieved by employing a mechanism for carrying the chip component while supporting it on the horizontal plane of the first rotary disc and then carrying the chip component while suction-holding it on the vertical plane of the second rotary disc. When the chip component is carried on the first rotary disc, the upper surface and one side face of the chip component are imaged by first and second cameras. When the chip component is carried on the second rotary disc, the lower surface and the other side face of the chip component are imaged by third and fourth cameras.