摘要:
A guide pin is set in common in first and second voids defined in the peripheries of first and second flexible printed wiring boards. The second void has the shape identical to the shape of the first void. When the guide pin rotates around a rotation axis so as to bring the guide pin in contact with the peripheries of the first and second flexible printed wiring boards inside the first and second voids, the first and second flexible printed wiring boards can be arranged. This leads to arrangement of the first and second flexible printed wiring boards at a time in a facilitated manner.
摘要:
A magnetic disk device comprises a magnetic disk in which a data zone is formed. An actuator has a voice coil and a head slider carrying a magnetic head, the actuator being swung to move the magnetic head over the disk between an innermost position of the data zone and an outermost position of the data zone. A magnet has a magnetization center and is opposed to the voice coil so that a voice coil motor which swings the actuator is formed, the magnet having a north pole and a south pole confronting each other via the magnetization center. The magnetic disk device is provided so that a deviation of a center of the voice coil from the magnetization center when the magnetic head is in the innermost position of the data zone is substantially equal to a deviation of the center of the voice coil from the magnetization center when the magnetic head is in the outermost position of the data zone.
摘要:
An information storage device that includes: a housing; a disc-shaped recording medium to record data thereon, rotating along a disc surface to generate a wind inside the housing; a head capable of recording and/or reproducing data on and/or from the recording medium; an arm holding the head on its tip end and held by a rotary shaft, the arm rotating about the rotary shaft to move the head along the disc surface; a coil including multiple turns in a plane where the arm rotates, and receiving current supply, the coil fixed to the opposite end of the arm; a magnet generating magnetic field to act on the coil; and an airflow adjusting plate placed adjacent and upstream to the coil along the wind generated by rotation of the recording medium, extending in the plane where the coil includes turns and adjusting flow of the wind to travel along the coil.
摘要:
A head actuator includes first and second yoke members. An elastic adhesive member is coupled to the second yoke member. A weight is coupled to the elastic adhesive member. The displacement of a coil in the head actuator causes a carriage to swing. The displacement of the coil generates a reaction. Such a reaction causes vibrations in the first yoke member and the second yoke member. Simultaneously, the vibrations of the first yoke member and the second yoke member serve to induce the vibrations of the weight. The elastic adhesive member serves to establish a shift in phase between the vibrations in the first and second yoke members and the vibrations of the weight. The vibrations in the opposite directions counteract each other, so that the vibrations are significantly reduced in the upper and lower yoke members.
摘要:
A thermal component is mounted on the front surface of an isolator sheet within a first specific area. A thermally-conductive material is located on the back surface of the isolator sheet on the back of the first specific area. An electrically-conductive material is located on the front surface of the isolator sheet within a second specific area. A thermally-insulating material is located on the back surface of the isolator sheet on the back of the second specific area. The flexible printed circuit board unit of this type allows heat of the thermal component to efficiently radiate from the thermally-conductive material. An increase in temperature can be suppressed in the thermal component. Heat can reliably stay in the electrically-conductive material when a solder material is applied to the surface of the electrically-conductive material. The solder material is allowed to reliably fuse.
摘要:
A fixing member is spaced from a head actuator by a predetermined distance. A flexible printed circuit board extends at least from the head actuator to the fixing member. The flexible printed circuit board is superposed on the surface of the fixing member. A viscoelastic layer and a protecting layer are overlaid on the surface of the flexible printed circuit board. A clip clips all the fixing member, the flexible printed circuit board, the viscoelastic layer and the protecting layer together. When a head slider is positioned, the head actuator changes its attitude relative to a recording disk. The inertial force based on the rotation causes the first flexible printed circuit board to vibrate when the actuator block stops rotating. The viscoelastic layer serves to absorb this residual vibration of the first flexible printed circuit board. Vibration of the flexible printed circuit board can be suppressed.
摘要:
A fixing member is spaced from a head actuator by a predetermined distance. A flexible printed circuit board extends at least from the head actuator to the fixing member. The flexible printed circuit board is superposed on the surface of the fixing member. A viscoelastic layer and a protecting layer are overlaid on the surface of the flexible printed circuit board. A clip clips all the fixing member, the flexible printed circuit board, the viscoelastic layer and the protecting layer together. When a head slider is positioned, the head actuator changes its attitude relative to a recording disk. The inertial force based on the rotation causes the first flexible printed circuit board to vibrate when the actuator block stops rotating. The viscoelastic layer serves to absorb this residual vibration of the first flexible printed circuit board. Vibration of the flexible printed circuit board can be suppressed.
摘要:
A fixing member is spaced from a head actuator by a predetermined distance. A flexible printed circuit board extends at least from the head actuator to the fixing member. The flexible printed circuit board is superposed on the surface of the fixing member. A viscoelastic layer and a protecting layer are overlaid on the surface of the flexible printed circuit board. A clip clips all the fixing member, the flexible printed circuit board, the viscoelastic layer and the protecting layer together. When a head slider is positioned, the head actuator changes its attitude relative to a recording disk. The inertial force based on the rotation causes the first flexible printed circuit board to vibrate when the actuator block stops rotating. The viscoelastic layer serves to absorb this residual vibration of the first flexible printed circuit board. Vibration of the flexible printed circuit board can be suppressed.
摘要:
A guide pin is set in common in first and second voids defined in the peripheries of first and second flexible printed wiring boards. The second void has the shape identical to the shape of the first void. When the guide pin rotates around a rotation axis so as to bring the guide pin in contact with the peripheries of the first and second flexible printed wiring boards inside the first and second voids, the first and second flexible printed wiring boards can be arranged. This leads to arrangement of the first and second flexible printed wiring boards at a time in a facilitated manner.
摘要:
A fixing member is spaced from a head actuator by a predetermined distance. A flexible printed circuit board extends at least from the head actuator to the fixing member. The flexible printed circuit board is superposed on the surface of the fixing member. A viscoelastic layer and a protecting layer are over laid on the surface of the flexible printed circuit board. A clip clips all the fixing member, the flexible printed circuit board, the viscoelastic layer and the protecting layer together. When a head slider is positioned, the head actuator changes its attitude relative to a recording disk. The inertial force based on the rotation causes the first flexible printed circuit board to vibrate when the actuator block stops rotating. The viscoelastic layer serves to absorb this residual vibration of the first flexible printed circuit board. Vibration of the flexible printed circuit board can be suppressed.