Speaker having spacer ring inside frame
AssigneeMineba Co., Ltd.
InventorEiji Sato
Life of this patent
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Abstract
A speaker comprises: a magnetic circuit composed of a pot yoke, a magnet, and a pole piece; a diaphragm shaped conical, defining an outer periphery and an inner periphery, and having a surround half-rolled and fixedly disposed at the outer periphery and a voice coil bobbin with a voice coil wound thereon fixedly disposed at the inner periphery; a spider having an outer diameter equal to or larger than the outer diameter of the surround; a frame having the magnetic circuit fixedly disposed at its central opening; and a spacer ring fixedly disposed inside the frame, and having a surround edge receiving portion adapted to fixedly receive the entire outer edge of the surround thereon.
Claims8
A speaker comprising:
- a magnetic circuit composed of a pot yoke, a magnet, and a pole piece;
- a diaphragm shaped conical, defining an outer periphery and an inner periphery, having a surround half-rolled and fixedly disposed at the outer periphery, and having a voice coil bobbin provided with a voice coil wound thereon and fixedly disposed at the inner periphery;
- a spider having an outer diameter equal to or larger than an outer diameter of the surround;
- a frame having the magnetic circuit fixedly disposed at its central opening;
- and
- a spacer ring, the spacer ring being fixedly disposed inside the frame, and having a surround edge receiving portion adapted to fixedly receive an entire outer edge of the surround thereon.
A speaker comprising:
- a magnetic circuit composed of a pot yoke, a magnet, and a pole piece;
- a diaphragm shaped conical, defining an outer periphery and an inner periphery, and having a surround half-rolled and fixedly disposed at the outer periphery and a voice coil bobbin with a voice coil wound thereon fixedly disposed at the inner periphery;
- a spider having an outer diameter equal to or larger than an outer diameter of the surround;
- a frame having the magnetic circuit fixedly disposed at its central opening, and including a surround edge receiving portion adapted to fixedly receive an outer edge of the surround thereon, the surround edge receiving portion having two cutaways positioned so as to oppose each other and allow the spider to get clear thereof into the frame;
- and
- a spacer ring, the spacer ring being fixedly disposed inside the frame, and comprising a ring-shaped main body and two blocks disposed on an upper face of the main body, the two blocks being shaped and positioned so as to engage respectively with the two cutaways made at the surround edge receiving portion of the frame thereby making the surround edge receiving portion complete to receive entirely the entire outer edge of the surround.
Dependencies are inferred from the claim text.