公开(公告)号：US11790879B2

公开(公告)日：2023-10-17

申请号：US17171515

申请日：2021-02-09

Applicant: YAMAHA CORPORATION

Inventor： Keizo Harada ,  Kazuo Masaki ,  Emi Tanabe

IPC: G10H3/14 ,  G10D13/10 ,  G10D13/02

CPC classification number: G10H3/146 ,  G10D13/02 ,  G10D13/26 ,  G10H3/143 ,  G10H2220/525

Abstract: An impact detection device includes: a body configured to be struck; a vibration sensor that detects vibration of the body; a support base that supports the vibration sensor; a first elastic body sandwiched between the vibration sensor and the body; and a second elastic body sandwiched between the vibration sensor and the support base. A dimension of each of the first elastic body and the second elastic body is smaller than a dimension of the vibration sensor when viewed from an arrangement direction in which the first elastic body, the vibration sensor, and the second elastic body are arranged.