A disk drive is rotatably disposed in a direction vertical to the recording surface of a recording medium. The disk drive comprises a support arm having a head at one side thereof, and a first member which abuts the other end of the support arm, generating a frictional force between the member and the support arm, when the support arm is moved in a direction along the recording surface of the recording medium.
1. A disk drive comprising:
a support arm having a head at one end thereof, which is rotatably disposed in a direction vertical to the recording surface of a recording medium; and
a first member which abuts the other end of said support arm when said support arm is moved in a direction along the recording surface of said recording medium, thereby generating a frictional force against said support arm, wherein said first member abuts the other end of said support arm, causing said support arm to stop rotating, wherein a projection is disposed at the other end of said support arm, and a catch hole is formed in said first member, and said projection is fitted in said catch hole, causing said support arm to stop rotating.
2. A disk drive comprising:
a support arm having a head at one end thereof, which is rotatably disposed in a direction vertical to the recording surface of a recording medium; and
a first member which abuts the other end of said support arm when said support arm is moved in a direction along the recording surface of said recording medium, thereby generating a frictional force against said support arm, wherein said support arm comprises a bearing portion, and said bearing portion is provided with a second member which comes in contact with said support arm, and said support arm, fulcrumed on a point at which said second member comes in contact with said support arm, rotates in a direction vertical to the recording surface of said recording medium.
3. The disk drive of claim 2 , wherein said second member is a pivot bearing having a pair of peaks.
4. The disk drive of claim 2 , wherein said support arm rotates about the center of said bearing portion in a direction along the recording surface of said recording medium.
5. The disk drive of claim 4 , wherein points at which said second member abuts said support arm are vertical to the axial direction of said bearing portion and to the longitudinal direction of said support arm and are positioned on a line passing through the rotational center of said bearing portion.
6. The disk drive of claim 4 , wherein the center of gravity of the portion held by said resilient portion is positioned at an intersection between the axis of said bearing portion and the rotational center axis in a direction vertical to the recording surface of said recording medium of said support arm.
7. The disk drive of claim 2 , wherein the points at which said second member abuts said support arm are provided in symmetrical relation to the center line in the longitudinal direction of said support arm.
8. A disk drive comprising:
a support arm having a head at one end thereof, which is rotatably disposed in a direction vertical to the recording surface of a recording medium; and
a first member which abuts the other end of said support arm when said support arm is moved in a direction along the recording surface of said recording medium, thereby generating a frictional force against said support arm, wherein the support arm is provided with a resilient portion which gives an activating force to said support arm so that said one end of the support arm approaches the recording surface of said recording medium.
9. The disk drive of claim 8 , wherein said resilient portion is a plate spring.