Patent ID: 6134082
Filing Date: 2000-10-17
Classification: G11B

Abstract:
A recording disk device comprising:a sheet-like magnetic disk medium having first and second surfaces, at least one of which is a recording surface;a jacket body enclosing said magnetic disk medium and in which said magnetic disk medium is rotatable, said jacket body having first and second inner surfaces respectively facing said first and second surfaces of said magnetic disk medium;upper and lower liners attached to said first and said second inner surfaces of said jacket body to remove fine dust adhered to said magnetic disk medium; andupper and lower subsidiary liners each of which is attached to at least a part of each of said upper and lower liners such that when said magnetic disk medium is rotated within said jacket body, said magnetic disk medium is interposed between said upper and lower subsidiary liners with both surfaces of said magnetic disk medium kept in contact with said upper and lower subsidiary liners;wherein said jacket body comprises parallel upper and lower shells, and said upper and said lower liners are respectively attached thereto;wherein said upper and lower shells have inner surfaces facing said upper and lower subsidiary liners through said upper and lower liners, respectively; andwherein at least one of said inner surfaces of said upper and lower shells is provided with a recess for accommodating a bent portion of said magnetic disk medium which occurs when said magnetic disk medium is deformed or bent.