公开(公告)号：US11927233B2

公开(公告)日：2024-03-12

申请号：US17779660

申请日：2020-11-27

Applicant: NHK SPRING Co., Ltd.

Inventor： Takashi Eguchi ,  Yusuke Tanaka

IPC: F16F1/18 ,  F16F3/02

CPC classification number: F16F1/182 ,  F16F3/023 ,  F16F2230/0005 ,  F16F2238/022

Abstract: A leaf spring device includes a plurality of leaf springs, in which a restricting protrusion is provided on one leaf spring, a recessed part is formed on the other leaf spring, a first side surface of the restricting protrusion and a third side surface of the recessed part face each other in a plate width direction, a second side surface of the restricting protrusion and a fourth side surface of the recessed part face each other in the plate width direction, a first inclined surface is formed on one of the first and third side surfaces to be further away from the other thereof from a central portion toward a first direction, and a second inclined surface is formed on one of the second and fourth side surfaces to be further away from the other thereof from the central portion toward a second direction.