公开(公告)号：US20240424848A1

公开(公告)日：2024-12-26

申请号：US18708112

申请日：2022-11-01

Applicant: NHK SPRING Co., Ltd.

Inventor： Yusuke TANAKA ,  Takanori HAYASHI ,  Shinji IINO ,  Takamichi SANO

IPC: B60G11/04 ,  B60G11/12

Abstract: A leaf spring device includes a leaf spring main body, a first eye portion, a second eye portion provided, and a connection piece, the first eye portion is connected to a vehicle body to be rotatable around a first axis, the second eye portion is connected to the connection piece to be rotatable around a second axis, a central region of the leaf spring main body supports an axle, the leaf spring main body is provided to be flexibly deformable upward, and a connection portion of the leaf spring main body, at which the leaf spring main body is connected to the second eye portion, is urged by an elastic restoring force of the connection piece in a direction in which the connection portion is displaced along the longitudinal direction at an initial stage of a process in which the leaf spring main body is flexibly deformed upward.

公开(公告)号：US20240326535A1

公开(公告)日：2024-10-03

申请号：US18739486

申请日：2024-06-11

Applicant: NHK SPRING CO., LTD.

Inventor： Yusuke TANAKA ,  Takanori HAYASHI ,  Shinji IINO ,  Takamichi SANO

IPC: B60G11/44

CPC classification number: B60G11/44

Abstract: A suspension device includes a pair of leaf springs and a torsion bar, one of a front end portion and a rear end portion of the torsion bar is supported by the axle in a state where movement in the front-rear direction and the left-right direction is restricted, one of a front end portion and a rear end portion of the leaf spring is connected to the vehicle body to be rotatable around a first axis extending in the left-right direction, the other thereof is connected to the vehicle body to be swingable in the front-rear direction around an axis extending in the left-right direction, and the other of the front end portion and the rear end portion of the torsion bar is supported by the vehicle body to be movable in the front-rear direction in a state where movement in the left-right direction is restricted.