公开(公告)号：US20150042025A1

公开(公告)日：2015-02-12

申请号：US14385081

申请日：2013-03-12

Applicant: NHK SPRING CO., LTD.

Inventor： Yusuke Terada

IPC: F16F1/32

CPC classification number: F16F1/328 ,  F16F2226/00 ,  Y10T29/49609

Abstract: The present invention provides a wave spring and a load adjusting method therefor in which a ratio of a spring constant can be freely adjusted. In a wave spring, a high mountain portion and a low mountain portion form a combination, and the combination is repeatedly formed along a circumferential direction. A valley portion is formed between the mountain portions. Since distance between mountain portions is constant in the conventional design of wave springs, the ratios of spring constant are only specific values (plot indicated by ∘). In contrast, in the design of the wave spring, since the pitch angle A of the high mountain portion and the pitch angle B of the low mountain portion can be changed in the combination, the ratio can be freely adjusted.

Abstract translation: 本发明提供一种波形弹簧及其负载调整方法，其中可以自由地调节弹簧常数的比率。 在波形弹簧中，高山部和低山部形成组合，并且沿圆周方向重复形成组合。 在山区之间形成谷部。 由于在波形弹簧的常规设计中山部分之间的距离是恒定的，所以弹簧常数的比率仅为具体值（由○表示的曲线）。 相反，在波形弹簧的设计中，由于高山部的俯仰角A和低山部的俯仰角B可以组合地变化，所以可以自由地调整比率。

公开(公告)号：US12078222B2

公开(公告)日：2024-09-03

申请号：US17281331

申请日：2019-09-30

Applicant: NHK SPRING CO., LTD.

Inventor： Yusuke Terada

IPC: F16F3/02 ,  B21D35/00 ,  F16F1/32

CPC classification number: F16F3/02 ,  B21D35/001 ,  F16F1/32 ,  F16F2226/04

Abstract: A disc spring which is used by arranging a plurality of the disk springs in an axial direction along a central axis includes an annular body plate portion that has an inner peripheral surface and an other peripheral surface which gradually extend toward one side in the axial direction from an outside toward an inside in a radial direction, and a stopper portion that protrudes from the body plate portion in a direction intersecting the inner peripheral surface and the outer peripheral surface of the body plate portion, in which in a case where an axial compression load is applied to a spring member in which a plurality of the disc springs are arranged in the axial direction, the stopper portion abuts another disk spring adjacent in the axial direction or a support member supporting an axial end portion of the spring member, the body plate portion and the stopper portion are integrally formed, and both axial end edges of the stopper portion are positioned inside both axial end edges of the body plate portion in the axial direction.

公开(公告)号：US09360074B2

公开(公告)日：2016-06-07

申请号：US14385081

申请日：2013-03-12

Applicant: NHK SPRING CO., LTD.

Inventor： Yusuke Terada

IPC: F16F1/34 ,  F16F1/32

CPC classification number: F16F1/328 ,  F16F2226/00 ,  Y10T29/49609

Abstract: The present invention provides a wave spring and a load adjusting method therefor in which a ratio of a spring constant can be freely adjusted. In a wave spring, a high mountain portion and a low mountain portion form a combination, and the combination is repeatedly formed along a circumferential direction. A valley portion is formed between the mountain portions. Since distance between mountain portions is constant in the conventional design of wave springs, the ratios of spring constant are only specific values (plot indicated by ∘). In contrast, in the design of the wave spring, since the pitch angle A of the high mountain portion and the pitch angle B of the low mountain portion can be changed in the combination, the ratio can be freely adjusted.

Abstract translation: 本发明提供一种波形弹簧及其负载调整方法，其中可以自由地调节弹簧常数的比率。 在波形弹簧中，高山部和低山部形成组合，并且沿圆周方向重复形成组合。 在山区之间形成谷部。 由于在波形弹簧的常规设计中山部分之间的距离是恒定的，所以弹簧常数的比率仅为具体值（由○表示的曲线）。 相反，在波形弹簧的设计中，由于高山部的俯仰角A和低山部的俯仰角B可以组合地变化，所以可以自由地调整比率。

公开(公告)号：US11996591B2

公开(公告)日：2024-05-28

申请号：US14901274

申请日：2014-06-02

Applicant: Nissan Motor Co., Ltd. ,  NHK Spring Co., Ltd.

Inventor： Yosuke Fukuyama ,  Takeshi Shiomi ,  Yusuke Terada ,  Norihiro Tajima

IPC: H01M8/0202 ,  H01M8/00 ,  H01M8/0206 ,  H01M8/0247 ,  H01M8/0254 ,  H01M8/0267 ,  H01M8/0271 ,  H01M8/0273 ,  H01M8/0297 ,  H01M8/1007 ,  H01M8/242 ,  H01M8/2457 ,  H01M8/248 ,  H01M8/10 ,  H01M8/1039

CPC classification number: H01M8/0271 ,  H01M8/0202 ,  H01M8/0206 ,  H01M8/0247 ,  H01M8/0267 ,  H01M8/0273 ,  H01M8/0297 ,  H01M8/1007 ,  H01M8/242 ,  H01M8/2457 ,  H01M8/248 ,  H01M8/006 ,  H01M8/0254 ,  H01M8/1039 ,  H01M2008/1095 ,  Y02E60/50

Abstract: An attachment structure for a deformation absorption member of a fuel-cell-stack includes a first raised piece raised from one surface of a base material in a grid pattern, and having an extension portion extending from a proximal end, the extension portion abutting at least one of the cathode side separator or the anode side separator, a second raised piece having a proximal end, and a joint portion formed by partially joining a location between the proximal end of the first raised piece and the proximal end of the second raised piece, proximal end of the first raised piece being adjacent the proximal end of the second raised piece in a second direction that intersects a first direction taken from the proximal end of the first raised piece to an extension portion side, to the at least one of the anode side separator and the cathode side separator.

公开(公告)号：US11719299B2

公开(公告)日：2023-08-08

申请号：US17041011

申请日：2019-03-28

Applicant: NHK SPRING Co., Ltd.

Inventor： Yusuke Terada

IPC: F16F1/32

CPC classification number: F16F1/32 ,  F16F2226/02 ,  F16F2228/08 ,  F16F2238/022

Abstract: A plate spring member having a compressive residual stress distribution in which a compressive residual stress of at least part of a portion having a depth from a surface within 50 μm is 500 MPa or more, and the compressive residual stress of a portion having a depth from the surface exceeding 50 μm is less than 500 MPa.

公开(公告)号：US10060493B2

公开(公告)日：2018-08-28

申请号：US15320257

申请日：2015-06-22

Applicant: NHK SPRING CO., LTD.

Inventor： Yusuke Terada

IPC: F16F1/32 ,  F16D13/52 ,  F16D25/0638 ,  F16D13/58 ,  F16D13/54

CPC classification number: F16F1/32 ,  F16D13/52 ,  F16D13/54 ,  F16D13/583 ,  F16D25/0638

Abstract: Provided is a disk spring which has a spring portion having a circular disk shape, the spring portion to be interposed between a pair of rotary members, for example an outer plate and a piston, being relatively movable in an axial direction to come close to and separate away from each other, wherein the spring portion has a rounded cross-section portion to be brought into contact with, for example, the outer plate, and a straight cross-section portion being continuous to the rounded cross-section portion and being formed on at least one of an inner diameter side and an outer diameter side of the spring portion so as to be allowed to be brought into contact with, for example, the piston and be compressed between both the rotary members in a close contact state.

公开(公告)号：US09955611B2

公开(公告)日：2018-04-24

申请号：US15032470

申请日：2014-10-28

Applicant: NHK Spring Co., Ltd.

Inventor： Norihiro Tajima ,  Yusuke Terada ,  Yosuke Kawai

IPC: F16F1/18 ,  F16F3/02 ,  H05K7/20 ,  H01L23/473 ,  H01L23/40 ,  H01L23/367 ,  H01L25/10

CPC classification number: H05K7/2049 ,  F16F1/185 ,  F16F3/023 ,  H01L23/3675 ,  H01L23/40 ,  H01L23/4012 ,  H01L23/473 ,  H01L25/105 ,  H01L2023/4068 ,  H01L2225/1094 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A pressure structure which is arranged between a first pressed body and a second pressed body facing the first pressed body and applies a pressure to the first pressed body and the second pressed body includes: a first spring member including a center portion which is in contact with the first pressed body, two end portions, each of which is in contact with the second pressed body, and two arm portions which extend from the center portion toward the different end portions; and a second spring member including a center portion which is in contact with the second pressed body, two end portions, each of which is in contact with the first pressed body, and two arm portions which extend from the center portion toward the different end portions.

公开(公告)号：US10320009B2

公开(公告)日：2019-06-11

申请号：US14901367

申请日：2014-06-30

Applicant: Nissan Motor Co., Ltd. ,  NHK Spring Co., Ltd.

Inventor： Yosuke Fukuyama ,  Takeshi Shiomi ,  Yusuke Terada ,  Norihiro Tajima

IPC: H01M8/247 ,  H01M8/0206 ,  H01M8/0247 ,  H01M8/0297 ,  H01M8/1018 ,  H01M8/2404

Abstract: A deformation absorption member for a fuel-cell-stack disposed between an anode side separator and a cathode side separator. The deformation absorption member includes a thin-board-like base material, and a plurality of raised pieces in which extension portions extended from proximal ends are arranged in a grid pattern. Each raised piece of the plurality of raised pieces is formed in a non-rectangular shape in which the width of the extension portion is shorter than the width of the proximal end, and plurality of raised pieces are configured so that the directions of the extension portions of mutually adjacent raised pieces are alternately arranged, and positions of the proximal ends of the mutually adjacent raised pieces are arranged in at least overlapping positions.

公开(公告)号：US09960435B2

公开(公告)日：2018-05-01

申请号：US14901136

申请日：2014-06-02

Applicant: Nissan Motor Co., Ltd. ,  NHK Spring Co., Ltd.

Inventor： Yosuke Fukuyama ,  Takeshi Shiomi ,  Yusuke Terada ,  Norihiro Tajima

IPC: H01M8/026 ,  H01M8/0297 ,  H01M8/2483 ,  H01M8/0271 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/2404 ,  H01M8/0206 ,  H01M8/0254 ,  H01M8/1018

CPC classification number: H01M8/0297 ,  H01M8/0206 ,  H01M8/0254 ,  H01M8/0258 ,  H01M8/026 ,  H01M8/0267 ,  H01M8/0271 ,  H01M8/2404 ,  H01M8/2483 ,  H01M2008/1095 ,  Y02P70/56

Abstract: A fuel-cell-stack manufacturing method, includes arranging an extension portion extended from a proximal end of a raised piece on one surface of a base material disposed so as to abut at least one of a cathode side separator and the anode side separator, and setting an interval between the anode side separator and the cathode side separator along a lamination direction so that deformation of the raised piece exceeds an elastic deformation region and enters a plastic deformation region, and is also in a region in which the proximal end moved due to the deformation does not come in contact with the cathode side separator or the anode side separator.

公开(公告)号：US20160286687A1

公开(公告)日：2016-09-29

申请号：US15032470

申请日：2014-10-28

Applicant: NHK SPRING CO., LTD.

Inventor： Norihiro Tajima ,  Yusuke Terada ,  Yosuke Kawai

IPC: H05K7/20 ,  H01L23/473 ,  F16F1/18 ,  H01L23/40 ,  F16F3/02 ,  H01L25/10 ,  H01L23/367

CPC classification number: H05K7/2049 ,  F16F1/185 ,  F16F3/023 ,  H01L23/3675 ,  H01L23/40 ,  H01L23/4012 ,  H01L23/473 ,  H01L25/105 ,  H01L2023/4068 ,  H01L2225/1094 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A pressure structure which is arranged between a first pressed body and a second pressed body facing the first pressed body and applies a pressure to the first pressed body and the second pressed body includes: a first spring member including a center portion which is in contact with the first pressed body, two end portions, each of which is in contact with the second pressed body, and two arm portions which extend from the center portion toward the different end portions; and a second spring member including a center portion which is in contact with the second pressed body, two end portions, each of which is in contact with the first pressed body, and two arm portions which extend from the center portion toward the different end portions.

Abstract translation: 一种压力结构，其布置在第一压制体和面向所述第一压制体的第二压制体之间，并且对所述第一压制体施加压力，所述第二压制体包括：第一弹簧构件，其包括与 第一压制体，两个端部与第二按压体接触，两个臂部从中心部向不同的端部延伸; 以及第二弹簧构件，其包括与所述第二按压体接触的中心部，与所述第一按压体接触的两个端部，以及从所述中心部向所述不同端部延伸的两个臂部 。