公开(公告)号：US11798585B2

公开(公告)日：2023-10-24

申请号：US17958156

申请日：2022-09-30

Applicant: NHK SPRING CO., LTD.

Inventor： Takumi Karasawa ,  Naoki Iwamoto ,  Sei Kawao ,  Tomoharu Imai

IPC: G11B5/48 ,  G06F3/06

CPC classification number: G11B5/4833 ,  G06F3/0676 ,  G11B5/4826 ,  G11B2220/2516

Abstract: A disk drive suspension of the embodiments includes a load beam, and a flexure including a mounting portion on which a slider is mounted and overlapping with the load beam. The load beam includes a tab further extending than the mounting portion longitudinal direction of the load beam. The tab is shaped in an arc such that a central portion in a lateral direction protrudes with respect to both end portions in the lateral direction, in the load beam. Each of the both end portions includes a flat surface parallel to the lateral direction.

公开(公告)号：US20230304557A1

公开(公告)日：2023-09-28

申请号：US17703295

申请日：2022-03-24

Applicant: NHK SPRING CO., LTD.

Inventor： Shinichi NISHIZAWA ,  Daisuke IBANO ,  Tsuyoshi MATSUDA ,  Norifumi ARISAKA ,  Shun MURAMATSU ,  Chihiro ITO ,  Takuto SUZUKI ,  Masatake KINOSHITA ,  Asuka KAWASAKI

IPC: F16F1/04 ,  F16F1/06

CPC classification number: F16F1/043 ,  F16F1/06 ,  F16F2238/026 ,  F16F2230/00 ,  B60G11/14

Abstract: A coil spring includes a wire rod and an elastic coat provided on the wire rod. The coil spring includes a coil section including a plurality of coil portions. The wire rod includes a round cross-sectional portion, a cross-section varying portion, and a rectangular cross-sectional portion along the longitudinal direction of the wire rod. The cross section of the rectangular cross-sectional portion is substantially square and has a first plane and a second plane. The first plane and the second plane oppose each other in the coil section. The elastic coat is provided on at least one of the first plane and the second plane. The elastic coat is continuous from the round cross-sectional portion to the cross-sectional variation portion and the rectangular cross-sectional portion.

公开(公告)号：US20230296152A1

公开(公告)日：2023-09-21

申请号：US17754566

申请日：2020-10-15

Applicant: NIPPON STEEL CORPORATION ,  AISIN CORPORATION ,  NHK SPRING CO., LTD. ,  NIPPON STEEL SG WIRE CO., LTD.

Inventor： Shinya TERAMOTO ,  Yutaka NEISHI ,  Michimasa AONO ,  Shuji KOZAWA ,  Yoichi OI ,  Naoki TAKABAYASHI ,  Junji TANAKA ,  Fumio TAKAHASHI ,  Shigekazu NISHIMOTO ,  Mitsuhiro KONDO ,  Tatsuro OCHI ,  Shoichi SUZUKI

IPC: F16F1/02 ,  C22C38/50 ,  C22C38/48 ,  C22C38/44 ,  C22C38/42 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C22C38/46 ,  C21D9/02 ,  C21D8/06 ,  C21D6/00 ,  C21D1/06 ,  C21D1/30 ,  C23C8/26 ,  F16F1/04

CPC classification number: F16F1/021 ,  C22C38/50 ,  C22C38/48 ,  C22C38/44 ,  C22C38/42 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/002 ,  C22C38/001 ,  C22C38/46 ,  C21D9/02 ,  C21D8/065 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D1/06 ,  C21D1/30 ,  C23C8/26 ,  F16F1/04 ,  C21D2211/008 ,  F16F2224/0208

Abstract: A damper spring having an excellent fatigue limit is provided. A damper spring according to the present embodiment includes a nitrided layer formed in an outer layer, and a core portion that is further inward than the nitrided layer. The chemical composition of the core portion consists of, in mass%, C: 0.53 to 0.59%, Si: 2.51 to 2.90%, Mn: 0.70 to 0.85%, P: 0.020% or less, 5: 0.020% or less, Cr: 1.40 to 1.70%, Mo: 0.17 to 0.53%, V: 0.23 to 0.33%, Cu: 0.050% or less, Ni: 0.050% or less, Al: 0.0050% or less, Ti: 0.050% or less, N: 0.0070% or less, and Nb: 0 to 0.020%, with the balance being Fe and impurities. In the core portion, a number density of V-based precipitates having a maximum diameter ranging from 2 to 10 nm is 500 to 8000 pieces/μm2.

公开(公告)号：US11761474B2

公开(公告)日：2023-09-19

申请号：US17284000

申请日：2019-10-11

Applicant: NHK SPRING CO., LTD.

Inventor： Yoshihisa Tani ,  Akihiko Kitazawa ,  Katsuhiko Kitahara

IPC: F16C1/10

CPC classification number: F16C1/101

Abstract: A control cable connection structure includes a long, narrow casing, a casing end, a cable end and a slider. An end portion of a first conduit is anchored at one end portion, in a length direction, of the casing. An end portion of a second conduit is anchored at the casing end. The casing end is superposed and assembled with the casing in a radial direction of the second conduit. The cable end is attached to an end portion of a second inner cord. An end portion of a first inner cord is anchored at the slider. The slider is supported at the casing to be slidable in the length direction thereof. In the assembled state, the cable end is engaged with the slider at an opposite side from a side at which the second conduit is disposed, and the second inner cord is connected with the slider.

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.