Speaker for an electronic instrument
AssigneeCitizen Electronics Co., Ltd.
InventorAtsushi Kuwabara
Life of this patent
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Abstract
A speaker comprises a lower frame assembly and an upper frame assembly. The lower frame assembly comprises a lower frame provided with a yoke, a permanent magnet secured to the yoke, and a top plate secured to the permanent magnet. The upper frame assembly comprises an upper frame provided with a diaphragm secured to the upper frame, and a voice coil secured to the diaphragm and disposed in a magnetic gap between the yoke and the top plate. A plurality of axial grooves are formed in a peripheral wall of the lower frame, and a plurality of engaging portions are formed on the upper frame, corresponding to the grooves of the lower frame. Each of the engaging portions comprises an engaging plate and a hook formed at an end of the engaging plate.
Claims2
A speaker for an electronic instrument comprising:
- a lower frame assembly comprising a lower frame provided with a yoke, a permanent magnet secured to the yoke, and a top plate secured to the permanent magnet;
- and
- an upper frame assembly comprising an upper frame provided with a diaphragm secured to the upper frame, and a voice coil secured to the diaphragm and disposed in a magnetic gap between the yoke and the top plate, wherein
- a plurality of grooves are formed in a peripheral wall of the lower frame;
- a plurality of engaging portions are formed on the upper frame, corresponding to the grooves of the lower frame;
- and
- each of the engaging portions comprises an engaging plate and a hook formed at an end of the engaging plate, so that the engaging plate and the hook are engaged with a corresponding groove, thereby engaging the lower frame assembly with the upper frame assembly.
Dependencies are inferred from the claim text.