Patent ID: 9733620
Date: 2017-08-15
CPC Classifications: G04B,G10F,G10K

Claim:
1. A striking mechanism for a watch or music box comprising at least one vibration plate with optimized actuation power, the striking mechanism comprising: a plurality of cantilevered strips, each of said strips being made of a material of Young's modulus E and of density ρ satisfying the inequality and all of said strips each satisfy the relation: where b is a width of said strip, L is a length of said strip, where δ is a travel of the strip, and f is the frequency of said strip, and where U is an actuation power of said strip which is greater than or equal to 20 microwatts, wherein said strips are arranged to vibrate between 800 Hz and 4000 Hz, and wherein an overall dimension of said vibration plate is limited to an active length of said vibration plate of 12 mm, a width of said vibration plate of 7 mm, and a vertical height of said vibration plate of 1.5 mm.