| 摘要 |
A doorbell base is made integrally and is provided with two resonators and a hollow housing located between said two resonators. Each of two resonators is provided respectively at two opposite side walls thereof with a locating projection for locating a soft plug of the chime bars. The housing is provided respectively at two opposite sides thereof with a frame hole having at a bottom end thereof an indentation formed integrally with the base. The housing is provided therein with a rectangular hole having two locating clamp bodies with a hooked portion for locating the diminishing neck of a striker. The striker is provided with a coil assembly which is fastened with a fastening piece of power source wires for generating a magnetic repulsion capable of actuating the striker rod of the striker to strike the chime bars to bring about a musical tone.
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