Patent ID: 6879467
Filing Date: 2005-04-12
Classification: G11B

Abstract:
1. A carriage arm assembly for swingably supporting a magnetic head, comprising: a slider on which the magnetic head is mounted; a suspension carrying the slider; a carriage arm to which the suspension is attached; and a body section provided at a base end of the carriage arm, which body section extends so as to completely surround a rotational axis, and is rotatable around the rotational axis so as to swing the magnetic head, wherein the carriage arm comprises first and second arm members extending from a distal side portion of the body section which completely surrounds the rotational axis, the distal side portion of the body section being disposed at a position between the rotational axis and the magnetic head and substantially away from the rotational axis in a direction toward the magnetic head, the first and second arm members being substantially in parallel with a swinging plane of the carriage arm, and a fixing portion provided at a distal end of the carriage arm for mounting the suspension thereon, and wherein each of the first and second arm members comprise low rigidity sections in a distal end area and a base end area thereof, the rigidity of the low rigidity sections being lower than that of an intermediate area of the first and second arm members, so that the carriage arm assembly is easily deformed in the distal and base end areas of the first and second arm members.