Abstract: An anti-vibration mechanism includes: a first chassis 1; a second chassis 2 opposed to the first chassis; vibration proof members 4 mounted to the second chassis; support members 3 for mounting the vibration proof members to the first chassis by insertion through central holes 4a of the vibration proof members; and elastic members 5 arranged between the first chassis and the support members, wherein the distance between the first chassis and the second chassis can be adjusted by means of the elastic members.

Abstract: A disk driving device including a centering member mounted to an inner portion of a cylindrical portion of a turntable. The centering member includes a linking portion serving as fulcra and a centering portion separated from the linking portion. The centering portion is resiliently biased with an outward force that acts parallel to a flange providing a disk-mounting surface of the turntable in order to center a disk.

Abstract: A motor and a recording and/or reproducing apparatus using the motor. The motor includes a rotational member, a fixed member, a stopper member and a set of balls. The rotational member is formed by bending a first plate, and includes a first V-shaped bearing guide groove and central rotational shaft having a hole formed therein. The fixed member is formed with a second V-shaped bearing guide groove and bent portions which are used to attach the fixed member to a chassis. The balls are mounted in the first and second V-shaped bearing guide grooves and allow the rotational member to rotate relative to the fixed member. The stopper member is inserted through a central opening in the fixed member and is received in the hole formed in the rotational shaft, thereby connecting the rotational member to the fixed member so that the motor can be transported as a unit without separating.

Abstract: An improved magnetic head assembly is provided by the invention, wherein the upper head device is biased toward the lower head device by a bias means while the lowest position of the upper head device where it comes closest to the lower head device is strictly defined by a stopper means whose position is changeable so that a correct gap is realized between the two head devices. Consequently, even if the upper head device is subjected to adjustment operations to align the upper head to a track while it is under pressure, the upper head device is completely free from any displacement after the adjustment operations and variations of in tracking due to variations in the pressure applied to the magnetic disc by the upper head device.

Abstract: Disclosed herein is an improvement in a magnetic head device including a carriage, a lower head mounted to the carriage, an upper head arranged in opposed relation with the lower head, a rotating arm having the upper head, and a biasing means for pulling down the rotating arm and biasing the upper head against the lower head. The improvement comprises a shock absorbing member provided on an upper surface of the rotating arm.

Abstract: A head assembly suitable for use in a magnetic disk driving apparatus includes an arm bearing a lower head and supported swingingly by a carriage. The arm swings about its own center of gravity, and its base plate portion becomes substantially parallel with a disk during a head-up configuration.

Abstract: A head assembly suitable for use in a magnetic disk driving apparatus includes an arm bearing a lower head and supported swingingly by a carriage. The arm swings about its own center of gravity, and its base plate portion becomes substantially parallel with a disk during a head-up configuration.

Abstract: Disclosed herein a magnetic head assembly including a carriage to which a magnetic head is mounted, a leaf hinge spring fixed to said carriage at an end portion thereof and an arm rotatably connected through said leaf hinge spring to said carriage. The improvement comprises a fulcrum portion projecting from said carriage and adapted to abut against one side of said arm, and an elastic member interposed between a part of said carriage opposed to said fulcrum portion and the other side of said arm, wherein said arm is supported by said fulcrum portion and said elastic member.

Abstract: A disk memory device includes a housing, a front panel attached to the housing and having a slot for insertion of a memory disk into the housing, a circuit board fixedly mounted in the housing, a mechanism including at least a disk drive unit and accommodated in the housing, and vibroisolating members fixed to the housing for isolating the mechanism from vibrations applied to the housing.