公开(公告)号：US11900975B2

公开(公告)日：2024-02-13

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：US11900973B2

公开(公告)日：2024-02-13

申请号：US18083791

申请日：2022-12-19

Applicant: NHK SPRING CO., LTD.

Inventor： Hiroshi Nakayama ,  Masao Hanya ,  Tatsuhiko Nishida

IPC: G11B5/48 ,  G11B33/08

CPC classification number: G11B5/4833 ,  G11B5/4826 ,  G11B33/08

Abstract: According to an embodiment, a disk drive suspension includes a load beam, a flexure including a tongue on which a slider is mounted and an outrigger connected to the tongue, and overlapping the load beam, and a damper material attached to the load beam and the outrigger. Further, the damper material has a single-layer structure of a viscoelastic material.

公开(公告)号：US11872877B2

公开(公告)日：2024-01-16

申请号：US17058824

申请日：2019-05-30

Applicant: NHK SPRING CO., LTD.

Inventor： Yoshihisa Tani ,  Ken Toriyama ,  Akinori Sasaki

IPC: B60K15/05 ,  E05B83/34 ,  B60K15/04 ,  E05B83/28

CPC classification number: B60K15/05 ,  E05B83/34 ,  B60K2015/0458 ,  B60K2015/0538 ,  B60K2015/0561 ,  B60K2015/0576 ,  E05B83/28

Abstract: A fuel lid opener-has: a heart cam mechanism that is structured so as to, each time a lifter is push-operated via a fuel lid, cause the lifter to alternately repeat advancing-out and withdrawing, and so as to push the fuel lid open due to advancing-out of the lifter; and a locking mechanism-that can restrict operation of the heart cam mechanism. At the locking mechanism, a time when a stopper is moved by operation of a motor, and the aforementioned restricting is released, the aforementioned stopper engages with the heart cam mechanism and operates the heart cam mechanism. Due thereto, the lifter advances-out, and the fuel lid is pushed open.

公开(公告)号：US20240001760A1

公开(公告)日：2024-01-04

申请号：US18255580

申请日：2021-12-06

Applicant: NHK SPRING CO., LTD.

Inventor： Yoshihisa TANI ,  Akinori SASAKI ,  Ken TORIYAMA

IPC: B60K15/05 ,  E05C3/12 ,  E05F13/00

CPC classification number: B60K15/05 ,  E05C3/12 ,  E05F13/00 ,  B60K2015/053 ,  B60K2015/0561 ,  E05Y2201/484 ,  E05Y2201/626 ,  E05Y2900/534

Abstract: When a fuel lid goes from an open state to a closed state and a pressed state and then returns to the closed state, a contact/non-contact switching mechanism switches a signal outputted from a microswitch from an ON signal to an OFF signal by performing a first operation. When the fuel lid goes from the closed state to the pressed state and then returns to the closed state, the contact/non-contact switching mechanism switches the signal outputted from the microswitch from the OFF signal to the ON signal and the OFF signal in that order by performing a second operation. Under a condition at least of the signal outputted from the microswitch switching from the OFF signal to the ON signal and the OFF signal in that order within a prescribed time, a control unit controls a lifter to rotate to another side around an axis line.

公开(公告)号：US20230400078A1

公开(公告)日：2023-12-14

申请号：US18033923

申请日：2021-10-15

Applicant: NHK SPRING Co., Ltd.

Inventor： Yoshio YAMADA ,  Hironobu IMAIZUMI ,  Norihiro TAJIMA ,  Shuji TAKAHASHI

IPC: F16F1/18

CPC classification number: F16F1/185 ,  F16F2228/007 ,  F16F2238/022

Abstract: The spring member (1, 2, 3) includes a conductive plate (11) and a support plate (12), the conductive plate is formed of a material in which at least one of electrical conductivity and thermal conductivity thereof is higher than that of a material forming the support plate, the support plate is formed of the material having a higher Young's modulus than that of the material forming the conductive plate, two end portions of the conductive plate in a second direction (X) are provided with first contact portions (13) that contact a first pressed body (W1), an intermediate portion of the conductive plate in the second direction is provided with a second contact portion (14) that contacts a second pressed body (W2), the two end portions of the conductive plate in the second direction are engaged with two end portions of the support plate in the second direction, an intermediate portion of the support plate in the second direction is provided with a third contact portion (15) that contacts the second contact portion, and the second contact portion is sandwiched between the third contact portion and the second pressed body in a first direction (Z).

公开(公告)号：US20230339124A1

公开(公告)日：2023-10-26

申请号：US17799384

申请日：2021-02-12

Applicant: NHK SPRING CO., LTD.

Inventor： Motoyuki OTSUKA ,  Takafumi HIRATA ,  Shimpei KUROKAWA ,  Yuki HOTODA

IPC: B25J18/06

CPC classification number: B25J18/06 ,  A61M25/0138

Abstract: Provided are a bending structure and a joint function part, capable of stabilizing bending operation and simplifying a structure. An inner coiled part is located into an outer coiled part. The outer coiled part and the inner coiled part have a plurality of gaps distancing adjacent coils in an axial direction, and the coils of the inner coiled part fit between the adjacent coils of the outer coiled part while being in contact with the adjacent coils. A dimension P is set in a range meeting πR/4N≤P

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.