Method of manufacturing a magnetic head assembly

• US 4,719,692 A
• Filed: 12/10/1985
• Issued: 01/19/1988
• Est. Priority Date: 12/10/1984
• Status: Expired due to Fees

• Current Assignee: ALPS Electric Company Limited (Alps Alpine Co., Ltd.)
• Original Assignee: ALPS Electric Company Limited (Alps Alpine Co., Ltd.)
• Inventors: Sakai, Satoshi, Hishi, Yuichi
• Primary Examiner(s): Hall, Carl E.
• Application Number:
  US06/807,369
• Time in Patent Office: 770 Days
• Field of Search: 29/603, 360/76, 360/104-109
• US Class Current: 29/603.06
• CPC Class Codes: G11B 17/32 Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing damping of vibrations of record carriers on turntables by fluid-dynamic means G11B19/2018
• CPC Class Codes: G11B 5/4826 Mounting, aligning or attachment of the transducer head relative to the arm assembly, e.g. slider holding members, gimbals, adhesive G11B5/484 takes precedence; details of head housings or structures G11B5/10, G11B5/127; adjustment relative to the record carrier G11B5/56
• CPC Class Codes: G11B 5/56 with provision for moving the head support for the purpose of adjusting the position of the head relative to the record carrier, e.g. manual adjustment for azimuth correction or track centering G11B5/52, G11B5/54, G11B5/58 take precedence
• CPC Class Codes: G11B 5/58 with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following spacing means incorporated in the head structure G11B5/187, G11B5/255, G11B5/3106
• CPC Class Codes: Y10T 29/4903 with bonding

Abstract

A method of manufacturing a magnetic head assembly including a carriage, a lower magnetic head fixed to the carriage, a spring-loaded arm connected to the carriage, and an upper magnetic head fixed to the arm and facing the lower head, the upper and lower heads defining therebetween a clearance having a width which is equal to the thickness of a magnetic disk, the arm is so supported at its end remote from the upper head that it may be rotatable only in a direction which allows the upper head to face the lower head.

Claims

1. A method of manufacturing a magnetic head assembly comprising:

fixing a lower magnetic head to a carriage;

mounting an upper magnetic head rotatably by a gimbal spring on an arm having a rear end remote from said upper head which is so positioned as to face said lower head;

connecting said rear end of said arm to said carriage so that said arm may be rotatable only in a direction which allows said upper head to face said lower head;

maintaining between said upper and lower heads a clearance having a width which is equal to the thickness of a magnetic disk; and

fixing said upper head to said arm.

2. A method as set forth in claim 1, further including adjusting the azimuth and position of said upper head before fixing it to said arm.

3. A method as set forth in claim 2, further including removing said gimbal spring from said arm after fixing said upper head to said arm.

4. A method as set forth in claim 1, wherein said upper head is fixed to said arm by a adhesive.