公开(公告)号：US20220212512A1

公开(公告)日：2022-07-07

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

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.

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.

公开(公告)号：US20200323600A1

公开(公告)日：2020-10-15

申请号：US16755121

申请日：2018-10-02

Applicant: NHK SPRING CO., LTD.

Inventor： Shimpei KUROKAWA ,  Yuki HOTODA ,  Shinji IINO

IPC: A61B34/00 ,  A61B34/30 ,  B25J18/06

Abstract: Provided are a bending structure and a flexible tube for a medical manipulator, which comprise a main body that is composed of the wave washers stacked in an axial direction and kept a stacked state, the main body being bendable according to the expansion and contraction in the axial direction. Accordingly, linearity of load characteristics based on load and a bending angle is made high to make it possible to obtain the flexible tube having superior load bearing and bendability while conducting size reduction.

公开(公告)号：US20250012605A1

公开(公告)日：2025-01-09

申请号：US18891702

申请日：2024-09-20

Applicant: NHK SPRING CO., LTD.

Inventor： Shinji IINO ,  Saiji UETSUHARA ,  Takuya SATO

IPC: G01D5/14 ,  B60G15/06 ,  B60G17/019 ,  B60G17/08 ,  G01B7/30 ,  G01D5/16

Abstract: A displacement detection device includes a first fixed member, a coil spring including a first end turn portion and a second end turn portion, a rotating member in contact with the first end turn portion, a second fixed member in contact with the second end turn portion, and a detection device capable of detecting an amount of rotation of the coil spring. The rotating member is rotatably supported using a bearing, and the bearing is in contact with the first fixed member and the rotating member.

公开(公告)号：US20240424850A1

公开(公告)日：2024-12-26

申请号：US18826700

申请日：2024-09-06

Applicant: NHK SPRING CO., LTD.

Inventor： Shinji IINO ,  Saiji UETSUHARA ,  Takuya SATO

IPC: B60G11/20 ,  B60G7/00

Abstract: A torsion bar unit includes a cylindrical shaped torsion bar including a fiber-reinforced composite material and extending in a first direction, a first holding member having a first groove for holding an end part of the torsion bar, and a second holding member having a second groove for holding the end part of the torsion bar at a position opposite the first groove and sandwiching and holding the end part of the torsion bar between the first groove and the second groove by overlapping the first holding member and the second holding member.