| 摘要 |
PROBLEM TO BE SOLVED: To provide a speaker which is easy to assemble, good in accuracy, and robust against shocks. SOLUTION: A frame 1 has four protrusions 1g at equal spaces on the outer side and recesses 1h below the protrusions 1g. A protector 10 has four approximately square through-holes 10b at equal spaces on the outer side, and the through-holes 10b are mutually engaged with the protrusions 1g to form snap fit parts. The protrusions 1g project radially from the outside via a slope 1f by the thickness of the protector 10. In the last step of the assembling process of a speaker 30, the protector 10 is laid from above on the frame 1 carrying a ring 9 aligned with its rotating direction to engage the through-holes 10b with the protrusions 1g, such that lower beams 10c of the through-holes 10b ride over the protrusions 1g to fit into the recesses 1h. Then, some beams 10c are bent in the arrow-marked directions. COPYRIGHT: (C)2004,JPO&NCIPI
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