公开(公告)号：US11631384B2

公开(公告)日：2023-04-18

申请号：US16920748

申请日：2020-07-05

Applicant: SUNLAND INFORMATION TECHNOLOGY CO., LTD.

Inventor： Xiaolu Liu ,  Kaiwen Li ,  Yangyi Teng

IPC: G10C3/16

Abstract: The present disclosure relates to a piano-action. The piano-action may comprises a first moving component including a concavity structure, a second moving component including a convexity structure, wherein the convexity structure and the concavity structure are configured to match each other and capable of being clipped together, and a third moving component being thin and flexible and configured to fixedly fit between the first moving component and the second moving component when the convexity structure of the second moving component is clipped into the concavity structure of the first moving component.