公开(公告)号：US11759889B2

公开(公告)日：2023-09-19

申请号：US17505698

申请日：2021-10-20

Applicant: NHK SPRING CO., LTD.

Inventor： Naoki Tanaka

IPC: B23K26/22 ,  B23K26/06 ,  B23K37/04 ,  B23K101/36 ,  B23K26/244 ,  B23K26/08

CPC classification number: B23K26/22 ,  B23K26/0626 ,  B23K26/0876 ,  B23K26/244 ,  B23K37/0408 ,  B23K2101/36

Abstract: A method of welding a first metal plate and a second metal plate that is thicker than the first plate, by a laser beam. The first plate and the second plate are disposed to overlap one another in a thickness direction. In a first laser irradiation step, the laser beam is emitted at the first plate, to form an initial nugget including a front-side nugget portion in the first plate, a back-side nugget portion in the second plate and having a diameter smaller than a diameter of the front-side nugget portion, and an annular flat surface portion existing between the front-side nugget portion and the back-side nugget portion. In a subsequent laser irradiation step, the laser beam is emitted again at the initial nugget after the initial nugget is solidified, thereby increasing the diameter of the back-side nugget portion.

公开(公告)号：US11738246B2

公开(公告)日：2023-08-29

申请号：US17776634

申请日：2021-10-27

Applicant: NHK SPRING CO., LTD.

Inventor： Akihisa Inoue

IPC: A63B53/12 ,  C25D3/04 ,  C25D5/14 ,  C25D5/00 ,  C25D3/12 ,  C25D7/04

CPC classification number: A63B53/12 ,  C25D3/04 ,  C25D3/12 ,  C25D5/14 ,  C25D5/627 ,  C25D7/04 ,  Y10T428/12854

Abstract: Provided is a golf shaft, capable of ensuring peeling resistance of a colored layer to endure a bending process and the like. The golf shaft has a metal element tube, and a colored plating layer being a colored layer formed on a surface of the element tube, wherein the colored plating layer has a first strike plating layer on the element tube side, a satin-like plating layer layered on a surface of the first strike plating layer, a second strike plating layer layered on a surface of the satin-like plating layer, and a decorative plating layer layered on a surface of the second strike plating layer and colored according to a color of the colored plating layer.

公开(公告)号：US20230256625A1

公开(公告)日：2023-08-17

申请号：US18015537

申请日：2021-07-14

Applicant: NHK SPRING CO., LTD.

Inventor： Takafumi HIRATA ,  Yuki HOTODA ,  Masahiro INABA

IPC: B25J17/02 ,  A61B34/30

CPC classification number: B25J17/02 ,  A61B34/30 ,  A61B2034/305

Abstract: A joint function unit, in which a movable part is supported by a base partso as to be displaceable in an axial direction thereof, includes: a plurality of drive wireseach having a fixed partfixed to the movable parton one side in the axial direction and the a supported partsupported by the base parton the other side in the axial direction; and an elastic bodysupporting the supported partof each of the plurality of drive wireson the base part, energizing the supported partwith respect to the fixed partin the axial direction, and applying tension to the drive wires.

公开(公告)号：US20230202359A1

公开(公告)日：2023-06-29

申请号：US18145281

申请日：2022-12-22

Applicant: NHK SPRING CO., LTD. ,  SUBARU CORPORATION

Inventor： Daisuke KOBAYASHI ,  Kensuke YOSHIGA ,  Akihiko MIZUNO ,  Fumito KITANAKA ,  Kenji NAGUMO

IPC: B60N2/42 ,  B60N2/427

CPC classification number: B60N2/4228 ,  B60N2/42709 ,  B60N2/22

Abstract: A seatback frame including left and right side frames, a lower frame, and a sacrum support section. The left and right side frames extend in a seat up-down direction inside left and right side portions of a seatback of a vehicle seat. The lower frame spans between lower end portions of the left and right side frames. The sacrum support section extends from a lower end portion of the lower frame toward a seat front side and supports a sacral region of a seated occupant from a seat rear side. A weakened portion that is weakened by a load from the seat front side is provided to the sacrum support section.

公开(公告)号：US20230166322A1

公开(公告)日：2023-06-01

申请号：US17696265

申请日：2022-03-16

Applicant: NHK Spring Co., Ltd.

Inventor： Ryuichi Numakunai ,  Kaoru Nagasawa ,  Fumitaka Arai ,  Kiyoaki Tanabe ,  Yukiya Mori ,  Katsunori Suzuki ,  Akira Okubo

IPC: B21J13/08 ,  B21J9/02 ,  B21J9/20

CPC classification number: B21J13/085 ,  B21J9/02 ,  B21J9/20

Abstract: A manufacturing method includes: conveying a target to a processing unit by using a conveying arm; conveying the target to a correction information acquiring unit provided in a position different from a position of the processing unit; acquiring position information relating to a position of the target conveyed to the correction information acquiring unit in a three-dimensional space; correcting a conveying position of the conveying arm to the processing unit based on the position information; and executing processing for the target conveyed to the corrected conveying position to manufacture a product.

公开(公告)号：US20230154490A1

公开(公告)日：2023-05-18

申请号：US17986333

申请日：2022-11-14

Applicant: NHK SPRING CO., LTD.

Inventor： Masao HANYA ,  Ryo KUWATA

IPC: G11B5/48

CPC classification number: G11B5/4873 ,  G11B5/4833

Abstract: A head driving device includes a head supporting portion supporting a head member, a first beam, a second beam, a first piezoelectric unit including a pair of piezoelectric elements, and a second piezoelectric unit including a pair of piezoelectric elements. When voltage is applied to the piezoelectric elements of the first piezoelectric unit, the piezoelectric elements deform, and a distal end of the first beam moves. The piezoelectric elements of the second piezoelectric unit also deform by application of voltage, and moves a distal end of the second beam in a same direction as the distal end of the first beam.

公开(公告)号：US11642994B2

公开(公告)日：2023-05-09

申请号：US17454369

申请日：2021-11-10

Applicant: NHK SPRING CO., LTD.

Inventor： Kenichi Katsube ,  Katsutoshi Imanari ,  Yuma Terada

IPC: B60N2/68 ,  B60N2/70 ,  B60N2/72 ,  B60N2/66 ,  A47C7/46

CPC classification number: B60N2/666 ,  A47C7/462 ,  B60N2/7058 ,  B60N2/7094

Abstract: A vehicle seat comprising: a seat cushion frame that structures a frame of a seat cushion and that is configured to support buttocks of a seated vehicle occupant; a seat cushion pad mounted to the seat cushion frame; and a pelvis supporting portion having a push-up portion that is provided at a seat lower side of the seat cushion pad along a seat left-right direction and that, by being displaced toward a seat upper side, pushes a seat rear side portion of the seat cushion pad toward the seat upper side.

公开(公告)号：US20230114061A1

公开(公告)日：2023-04-13

申请号：US17935872

申请日：2022-09-27

Applicant: NHK SPRING CO., LTD.

Inventor： Kazuhito KATO ,  Kousuke SUZUKI

IPC: B60N2/24 ,  B60N2/00 ,  B60N2/90

Abstract: A car sickness inhibition device includes: a memory and a processor connected to the memory, the processor being configured to: acquire an acceleration a in a front-rear direction of a vehicle or angles of inclination θ of the head and upper body of an occupant sitting in a seat of the vehicle; and by using expression θ>tan−1(a/g)·(1), where g denotes gravitational acceleration, obtain from the acquired acceleration a an angle of inclination θ0 with which car sickness is inhibited, or obtain an acceleration a0 with which car sickness is inhibited.

公开(公告)号：US20230054975A1

公开(公告)日：2023-02-23

申请号：US17887478

申请日：2022-08-14

Applicant: NHK SPRING CO., LTD.

Inventor： Shigeru KUROI

IPC: B63H25/02

Abstract: A steering handle device includes a housing to be mounted on a hull, a tube member and a steering shaft. The tube member is rotatable in a forward/backward direction around the tilt shaft relative to the housing. The steering shaft is inserted to the tube member. A steering arm is attached to the steering shaft. The steering arm includes an extending portion extending to an outer side of the housing. A joint member is provided on the extending portion. The joint member includes a connection portion to connect to the steering cable and a support portion to support the connection portion. When the steering shaft is in the neutral position in the rotation direction, the connection portion is located in a position corresponding to the tilt shaft as viewing the housing from the lateral direction.

公开(公告)号：US11571943B2

公开(公告)日：2023-02-07

申请号：US17355520

申请日：2021-06-23

Applicant: NHK SPRING CO., LTD.

Inventor： Norihiro Kawakami ,  Yurika Okudaira ,  Yuushi Nogami

IPC: B60G21/055 ,  B21D7/024 ,  F16F1/14

Abstract: A hollow stabilizer includes a curved part having eight regions defined in a cross section. A first region includes a 90° first part when the center of the inside of the curve is taken to be at 0° and the center of the outside of the curve is taken to be at 180°. A third region includes a 0° third part. A fifth region includes a 270° fifth part. A seventh region includes a 180° seventh part. The radii of curvature of the respective outer surfaces of the third part and the seventh part are larger and the radii of curvature of the respective outer surfaces of the second part and the sixth part are smaller than the radii of curvature of the respective outer surfaces of the fourth part and the fifth part.