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.

公开(公告)号：US11820185B2

公开(公告)日：2023-11-21

申请号：US17610687

申请日：2020-05-25

Applicant: NHK SPRING CO., LTD.

Inventor： Shinji Iino ,  Yusuke Tanaka ,  Yosuke Kawai

IPC: B60G11/08 ,  B60G11/10 ,  F16F1/368

CPC classification number: B60G11/08 ,  B60G11/10 ,  B60G2202/112 ,  B60G2206/428 ,  B60G2206/7101 ,  F16F1/3683

Abstract: The suspension device according to the present invention is provided with a leaf spring extending in a belt shape, a first arm, a second arm, and a coupling member for rotatably coupling the first arm and the second arm, wherein: a first holding part for holding one end of the leaf spring and a second holding part for holding the other end of the leaf spring are provided; and the first and second arms each support the leaf spring by at least one portion that is different from the one end or the other end of the leaf spring.