Diaphragm for speaker device, speaker device and mobile phone
AssigneesPioneer Corporation, Tohoku Pioneer Corporation
InventorsShinsuke Konuma, Akihiko Furuto, Kunio Mitobe
Life of this patent
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Abstract
A diaphragm of a speaker device, formed into an elongated configuration, has a recessed shape and includes a voice coil arrangement part extending in its longitude direction. The voice coil arrangement part has a gap with a constant width in its lateral direction and includes a voice coil supporting part for supporting a voice coil and an expanded part provided at a position along it.
Claims10
A diaphragm for a speaker device comprising a voice coil arrangement part in which a voice coil is arranged,
- wherein the voice coil arrangement part has a substantially rectangular parallelepiped shape with an open upper side, and
- wherein the voice coil arrangement part comprises:
- first lateral walls facing each other with a first distance therebetween;
- second lateral walls facing each other with a second distance therebetween, wherein the second distance is greater than the first distance;
- a bottom surface perpendicular to the first lateral walls and the second lateral walls;
- and
- at least one expanded part in which the first lateral walls face each other with a third distance greater than the first distance therebetween.
A speaker device comprising a diaphragm therefor including a voice coil arrangement part in which a voice coil is arranged,
- wherein the voice coil arrangement part has a substantially rectangular parallelepiped shape with an open upper side, and
- wherein the voice coil arrangement part comprises:
- first lateral walls facing each other with a first distance therebetween;
- second lateral walls facing each other with a second distance therebetween, wherein the second distance is greater than the first distance;
- a bottom surface perpendicular to the first lateral walls and the second lateral walls;
- and
- at least one expanded part in which the first lateral walls face each other with a third distance greater than the first distance therebetween.
A mobile phone comprising a speaker device including a diaphragm therefor including a voice coil arrangement part in which a voice coil is arranged,
- wherein the voice coil arrangement part has a substantially rectangular parallelepiped shape with an open upper side, and
- wherein the voice coil arrangement part comprises:
- first lateral walls facing each other with a first distance therebetween;
- second lateral walls facing each other with a second distance therebetween, wherein the second distance is greater than the first distance;
- a bottom surface perpendicular to the first lateral walls and the second lateral walls;
- and
- at least one expanded part in which the first lateral walls face each other with a third distance greater than the first distance therebetween.
Dependencies are inferred from the claim text.