Claims
- 1. A disk drive apparatus, comprising:
- at least one hard disk having an upper surface and a lower surface;
- a spin motor for rotating said hard disk;
- a first transducer head for communicating information with said upper surface of said disk and a second transducer head for communicating information with said lower surface of said disk;
- an actuator including at least one actuator arm in which an actuator arm through hole is provided;
- a first rigid mount plate and a second rigid mount plate each including a planar surface having a first end and a second end, said actuator arm is attached to said planar surface of each of said mount plates at each said first end, and each said second end extends away from said actuator arm;
- a first load beam attached to said planar surface of said first mount plate at said second end thereof on a face of said first mount plate facing towards said disk, said first transducer head mounted away from said first mount plate on a face of said first load beam facing towards said disk, said first load beam being resilient in a vertical direction to allow said first transducer head to follow the topography on said upper surface of said hard disk, and
- at said first end of said first mount plate, a first mount plate through hole and a first mount plate boss protruding from the circumference of said first mount plate through hole on said face of said first mount plate facing towards said disk are provided, said first mount plate boss being attached to said actuator arm at one end of said actuator arm through hole; and
- a second load beam attached to said planar surface of said second mount plate at said second end thereof on a face of said second mount plate facing towards said disk, said second transducer head mounted away from said second mount plate on a face of said second load beam facing towards said disk, said second load beam being resilient in a vertical direction to allow said second transducer head to follow the topography on said lower surface of said hard disk, and
- at said first end of said second mount plate, a second mount plate through hole and a second mount plate boss protruding from the circumference of said second mount plate through hole on said face of said second mount plate facing towards said disk are provided, said second mount plate boss being attached to said actuator arm at the other end of said actuator arm through hole.
- 2. A hard disk drive apparatus, comprising:
- N hard disks, where N is greater than or equal to one, each of said hard disks having an upper surface and a lower surface;
- a spin motor for rotating said N hard disks;
- N first transducer heads for communicating information with said upper surface of each of said N disks and N second transducer heads for communicating information with said lower surface of each of said N disks;
- an actuator including N actuator arms, each of said N actuator arms for each respective one of said N hard disks, and each of said N actuator arms having an actuator arm through hole;
- N first and N second mount plates, each of said mount plates being rigid and including a planar surface having a first end and a second end, wherein each of said N actuator arms is attached to said planar surface of each of said first mount plates and each of said second mount plates at each said first end, and each said second end extends away from said N actuator arms;
- N first lead beams each attached to said planar surface of each of said first mount plates at said second end thereof on a face of each of said N first mount plates facing towards each respective one of said N disks, each of said N first transducer heads mounted away from each of said N first mount plates on a face of each of said N first lead beams facing towards each respective one of said disks, each first load beam being resilient in a vertical direction to allow each first transducer head to follow the topography on said upper surface of each respective disk, and
- at said first end of each of said N first mount plates, a first mount plate through hole and a first mount plate boss protruding from the circumference of said first mount plate through hole on said face of each of said N first mount plates facing towards each respective one of said N disks are provided, each first mount plate boss being attached to each respective one of said N actuator arms at one end of said actuator arm through hole thereof; and
- N second lead beams each attached to said planar surface of each of said N second mount plates at said second end thereof on a face of each of said N second mount plates facing towards each respective one of said N disks, each of said N second transducer heads mounted away from each of said N second mount plates on a face of each of said N second load beams facing towards each respective one of said N disks, each second load beam being resilient in a vertical direction to allow each second transducer head to follow the topography on said lower surface of each respective disk, and
- at said first end of each of said N second mount plates, a second mount plate through hole and a second mount plate boss protruding from the circumference of said second mount plate through hole on said face of each of said N second mount plates facing towards each respective one of said N disks are provided, each second mount plate boss being attached to each respective one of said N actuator arms at the other end of said actuator arm through hole thereof.
Priority Claims (4)
Number |
Date |
Country |
Kind |
3-260498 |
Sep 1991 |
JPX |
|
3-260499 |
Sep 1991 |
JPX |
|
3-260500 |
Sep 1991 |
JPX |
|
3-260501 |
Sep 1991 |
JPX |
|
Parent Case Info
This is a divisional of application Ser. No. 08/393,598 filed on Feb. 23, 1995, now U.S. Pat. No. 5,508,860, issued Apr. 16, 1996, which is a continuation of Ser. No. 08/215,876 filed Mar. 21, 1994, now abandoned, which is a continuation of Ser. No. 07/802,385 filed Dec. 4, 1991, now abandoned.
US Referenced Citations (8)
Foreign Referenced Citations (8)
Number |
Date |
Country |
52-030413 |
Mar 1977 |
JPX |
59-121761 |
Aug 1984 |
JPX |
59-218666 |
Dec 1984 |
JPX |
59-221872 |
Dec 1984 |
JPX |
62-185287 |
Aug 1987 |
JPX |
62-256262 |
Nov 1987 |
JPX |
62-298012 |
Dec 1987 |
JPX |
3-168985 |
Jul 1991 |
JPX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
393598 |
Feb 1995 |
|
Continuations (2)
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Number |
Date |
Country |
Parent |
215876 |
Mar 1994 |
|
Parent |
802385 |
Dec 1991 |
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