Patent ID: 11887564
Assignee: nan
Field: Other consumer goods (Other fields)
Classification: CPC G | IPC G

Claim 0:
1. A resonance counterweight structure for audio effect article, comprising a hollow counterweight main body 10 and an assembling section 20 connected with the counterweight main body 10, the assembling section 20 being mountable in a predetermined position of an audio effect article 90, the counterweight main body 10 at least including an upper wall 11, a lower wall 12 and a peripheral wall 13 connected between the upper and lower walls 11, 12, the upper wall 11 of the counterweight main body 10 is formed with multiple perforations 16, the geometrical configurations of the perforations 16 being at least one of that the geometrical configurations are identical to each other and the geometrical configurations are different from each other, the upper wall 11, the lower wall 12 and the peripheral wall 13 together defining a chamber 14 of the counterweight main body 10.