Button shaped head for floppy disc
AssigneeAlps Electric Co., Ltd.
InventorMasao Okita
Life of this patent
Estimating the term…
Abstract
In a button shaped magnetic head used for a floppy disc apparatus, a planar spring and a plurality of terminals are inititally formed integrally and insert molded to be contained in a button shaped base, the planar spring and the terminals are then separated from each other, an erasing coil and a read/write coil are mounted on one side of the planar spring, ends of coil wires of the erasing coil and the read/write coil are connected with internal end portions of the terminals relative to the base, while outer end portions of the terminals extending radially outwardly of the base are connected with lead wires.
Claims6
A method of forming a button shaped magnetic head including an erasing coil and a read/write coil having internal lead wires to be connected to a plurality of terminals, comprising the steps of:
- making a metal plate having a planar spring portion attached to a plurality of terminal portions integrally formed thereon by punching out a pattern corresponding to said portions;
- insert molding the punched metal plate in a base member of the button shaped magnetic head;
- separating the portions of the metal plate so as to form a planar spring and a plurality of separate terminals for the magnetic head, wherein the terminals are separated so as to have internal end portions on an internal side of the base member spaced from and facing opposite the planar spring and their ends on an external side of the base member projecting externally therefrom;
- mounting the erasing and read/write coils on the planar spring;
- and
- connecting the internal lead wires of the coils to the respective internal end portions of the terminals on the internal side of the base member.
Dependencies are inferred from the claim text.