US 12,283,260 B2
Grand piano soundboard with a bar and sound tunnels
Haiou Jin, Suzhou (CN); Nianbo Wu, Suzhou (CN); Xinxi He, Suzhou (CN); Xinzhi Zhu, Suzhou (CN); Biying Li, Suzhou (CN); and Ping Yang, Suzhou (CN)
Assigned to SUZHOU LI YUE MUSICAL INSTRUMENTS CO., LTD., Suzhou (CN)
Appl. No. 18/026,237
Filed by SUZHOU LI YUE MUSICAL INSTRUMENTS CO., LTD., Jiangsu (CN)
PCT Filed Dec. 16, 2020, PCT No. PCT/CN2020/136859
§ 371(c)(1), (2) Date Apr. 3, 2023,
PCT Pub. No. WO2022/036964, PCT Pub. Date Feb. 24, 2022.
Claims priority of application No. 202010838859.5 (CN), filed on Aug. 19, 2020.
Prior Publication US 2023/0368751 A1, Nov. 16, 2023
Int. Cl. G10C 1/04 (2006.01); G10C 3/06 (2006.01)
CPC G10C 1/04 (2013.01) [G10C 3/06 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A grand piano soundboard with a bar and sound tunnels comprising:
an inner wall of the soundboard arranged toward the strings of the piano; and
an outer wall of the soundboard provided with a first groove and a second groove, wherein the first groove is arranged diagonally in a width direction of the soundboard, and the second groove is arranged diagonally in the length direction of the soundboard; the first groove and the second groove cross and connect with each other on the outer wall of the soundboard, the intersection point is located in the center of the soundboard, and then the outer wall of the soundboard is divided into four resonance regions; a center of the outer wall of the soundboard is also provided with a bar assembly, which comprises a plurality of strip-shaped bar members, which are arranged on both sides of the first groove and the second groove in pairs; the first groove and the second groove respectively form a sound tunnel on the outer wall of the soundboard.