Claims
- 1. A magnetic head assembly comprising:
- a lower head device;
- a carriage to which said lower head device is mounted;
- a upper head device;
- an arm to which said upper head device is mounted, said arm having a first end with said upper head device mounted proximate said first end, a second end, and a pivot point, wherein said pivot point is located along said arm intermediate said first end and said second end, wherein said carriage is connected with said arm at said pivot point such that a data recording disc is held by the head devices and data recording and reading operations are conducted by moving said carriage in a radial direction of the disc, wherein said arm and the upper head device mounted thereto can be swingably displaced about said pivot point relative to said lower head device to move the upper head device toward or away from said lower magnetic head;
- a biasing means operatively coupled between said carriage and said arm for urging said upper magnetic head toward said lower magnetic head; and
- a stopper means operatively coupled to said carriage for defining and for selectively changing the position of the upper magnetic head when the arm is at a limit of its swing nearest to the lower magnetic head, said stopper means being disposed so as to contact said arm at a location on said arm on a second end side of said pivot point.
- 2. A magnetic head assembly comprising:
- an upper magnetic head;
- arm means having a first end and a second end which are rockable about a pivot axis located intermediate said first and second ends said arm means provide support for said upper magnetic head at said first end of said arm means;
- a lower magnetic head;
- base means for supporting said lower magnetic head and for supporting said arm means about said pivot axis such that the said upper magnetic head is disposed opposite said lower magnetic head when said first end of said arm means is rocked toward said lower magnetic head; and
- adjusting means for setting and for selectively changing a minimum clearance between said upper magnetic head and said lower magnetic head when said arm means is rocked toward said lower magnetic head, wherein said adjusting means is disposed to come into contact with said second end of said arm when said upper and said lower magnetic heads are disposed at said minimum clearance, and wherein said adjusting means is operatively coupled with said base means.
- 3. An assembly as in claim 2, further comprising a biasing means operatively coupled to said arm means for urging said upper magnetic head toward said lower magnetic head.
- 4. An assembly as in claim 3, wherein said said biasing means is disposed between said second end of said arm means and said base means.
- 5. An assembly as in claim 2, wherein said adjusting means is fixedly connected to said base means.
- 6. An assembly as in claim 2, wherein said upper and said lower magnetic heads hold a data recording disc between the heads when said heads are disposed such that the heads have said minimum clearance between them, wherein data recording and reading operations are conducted by moving said base means in a radial direction of the disc, wherein said first end of said arm means and said upper magnetic head can be swingingly displaced relative to said lower magnetic head to move the upper head magnetic head toward or away from said lower magnetic head.
- 7. An assembly as in claim 2, wherein said adjusting means comprises a threaded rod which as it is threaded into and out of a support hole changes and minimum clearance.
- 8. A magnetic head assembly comprising:
- an upper magnetic head device having an at least one upper alignment recess;
- arm means having a first end and a second end which are rockable about a pivot axis located intermediate said first and second ends, said arm means providing support for said upper magnetic head device at said first end of said arm means;
- a lower magnetic head device having an at least one lower alignment recess;
- base means for supporting said lower magnetic head device and for supporting said arm means about said pivot axis such that the said upper magnetic head device is disposed opposite said lower magnetic head device when said first end of said arm means is rocked toward said lower magnetic head device; and
- adjusting means for setting and for selectively changing a minimum clearance between said upper magnetic head device and said lower magnetic head device when said arm means is rocked toward said lower magnetic head, wherein said adjusting means is disposed to come into contact with said second end of said arm when said upper and said lower magnetic heads are disposed at said minimum clearance, and wherein said adjusting means is operatively coupled with said base means,
- wherein said minimum clearance between said devices is maintained after an alignment operation wherein an alignment tool uses at least one upper alignment recess and one lower alignment recess to align said head devices.
Priority Claims (1)
Number |
Date |
Country |
Kind |
63-95637[U] |
Jul 1988 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 07/325,582, filed Mar. 17, 1989, now abandoned.
US Referenced Citations (4)
Continuations (1)
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Number |
Date |
Country |
Parent |
325582 |
Mar 1989 |
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