Slider for a floating magnetic head having tapered coil groove walls

A floating magnetic head comprising:

• a slider of a nonmagnetic material, said slider having leading and trailing ends with respect to rotation of a magnetic recording medium;
• said slider having a pair of floating rails on its surface facing said magnetic recording medium, said floating rails facing the magnetic recording medium for positioning the slider relative to the magnetic recording medium, said floating rails extending along opposite sides of the slider in a direction orienting from said leading end to said trailing end with a predetermined space therebetween, a coil groove defined in said trailing end and having a bottom remote from said trailing end of said slider, said coil groove extending between said opposite sides of the slider, and a slit defined in one of said floating rails across said coil groove;
• said slider having first and second walls with confronting surfaces, said first and second walls being of progressively increasing thickness as measured in a direction normal to said surface facing said magnetic recording medium, to define therebetween progressively decreasing thickness of said coil groove from said trailing end of said slider toward said bottom of said coil groove;
• and
• a core tip fixedly disposed in said slit.

A floating magnetic head comprising:

• a slider of a nonmagnetic material, said slider having leading and trailing ends with respect to rotation of a magnetic recording medium;
• said slider having a pair of floating rails on a surface thereof facing said magnetic recording medium, said floating rails facing the magnetic recording medium for positioning the slider relative to the magnetic recording medium, said floating rails extending along opposite sides of the slider in a direction orienting from said leading end to said trailing end with a predetermine space therebetween, a coil groove defined in said trailing end and having a bottom remote from said trailing end of said slider, said coil groove extending between said opposite sides of the slider, and a slit defined in one of said floating rails across said coil groove;
• said coil groove being progressively narrower, as measured in a direction normal to said surface facing said magnetic recording medium, from said trailing end of said slider toward said bottom of said coil groove;
• and
• a core tip fixedly disposed in said slit,
• wherein said slider has a pair of confronting surfaces tapered linearly from said trailing end toward said bottom, said coil groove being defined between said confronting surfaces.

A floating magnetic head comprising:

• a slider of a nonmagnetic material, said slider having leading and trailing ends with respect to rotation of a magnetic recording medium;
• said slider having a pair of floating rails on a surface thereof facing said magnetic recording medium, said floating rails facing the magnetic recording medium for positioning the slider relative to the magnetic recording medium, said floating rails extending along opposite sides of the slider in a direction orienting from said leading end to said trailing end with a predetermined space therebetween, a coil groove defined in said trailing end and having a bottom remote from said trailing end of said slider, said coil groove extending between said opposite sides of the slider, and a slit defined in one of said floating rails across said coil groove;
• said coil groove being progressively narrower, as measured in a direction normal to said surface facing said magnetic recording medium, from said trailing end toward said bottom;
• and
• a core tip fixedly disposed in said slit,
• wherein said slider has a pair of confronting surface tapered stepwise from said trailing end toward said bottom, said coil groove being defined between said confronting surfaces.

A floating magnetic head comprising:

• a slider having a trailing end with respect to rotation of a magnetic recording medium;
• said slider having a pair of floating rails on its surface facing said magnetic recording medium, said floating rails facing the magnetic recording medium for positioning the slider relative to the magnetic recording medium, a coil groove defined in the slider and having an opening at said trailing end of said slider and a bottom remote from said trailing end of said slider, and a slit defined in one of said floating rails across said coil groove;
• said slider having first and second walls with confronting surfaces, said first and second walls being of progressively increasing thickness, as measured in a direction normal of said surface facing said magnetic recording medium, to define therebetween said coil groove having progressively decreasing thickness from said opening of said coil groove toward said bottom of said coil groove;
• and
• a core tip fixedly disposed in said slit.

A floating magnetic head comprising:

• a slider of a nonmagnetic material, said slider having an air inlet side and an air outlet side with respect to rotation of a magnetic recording medium;
• said slider having a floating rail on its surface facing said magnetic recording medium, said floating rail facing the magnetic recording medium for positioning the slider relative to the magnetic recording medium, a coil groove defined in an end surface of the slider at said air outlet side, and a slit defined in said floating rail at said air outlet side, said slit extending along said floating rail and across said coil groove;
• a core tip fixedly disposed in said slit and having a magnetic gap;
• said slider having a portion located between said surface facing the magnetic recording medium and said coil groove, said portion having progressively increasing thickness, as measured between said surface and said coil groove, from said air outlet side toward said air inlet side to define progressively decreasing thickness of said coil groove as measured in a direction normal to said surface facing said magnetic recording medium said progressively decreasing thickness of said coil groove occurring across the entire width of said slider.