公开(公告)号：US20150001985A1

公开(公告)日：2015-01-01

申请号：US14378482

申请日：2013-02-14

Applicant: NHK SPRING CO. LTD.

Inventor： Yohei Kameda ,  Kazuo Iwata ,  Ken Okura ,  Yoshiki Ono

IPC: H02K1/16

CPC classification number: H02K1/16 ,  H02K1/02 ,  H02K1/165 ,  H02K15/024 ,  H02K2213/03

Abstract: Provided is a stator core for a motor capable of facilitating an assembly work and parts management without increasing the number of components while suppressing leakage of magnetic flux passing through a flange to a coil. A stator core has an annular yoke portion and tooth portions inwardly protruding from an inner periphery of the yoke portion in a radial direction, wherein at a front end of the tooth portion inwardly protruding in the radial direction, a flange portion is provided so as to face a coil wound around the tooth portion and wherein to the flange portion, a compressive residual stress portion M is provided.

Abstract translation: 提供一种用于电动机的定子铁心，其能够在不增加部件数量的同时便于组装工作和部件管理，同时抑制通过法兰到线圈的磁通量的泄漏。 定子铁芯具有环形磁轭部分和从磁轭部分的内周沿径向向内突出的齿部分，其中在沿径向向内突出的齿部分的前端处设有凸缘部分， 面对缠绕在齿部上的线圈，并且其中在凸缘部分设置有压缩残余应力部分M.

公开(公告)号：US20200208702A1

公开(公告)日：2020-07-02

申请号：US15753656

申请日：2016-08-26

Applicant: NHK Spring Co., Ltd.

Inventor： Yoshiki Ono ,  Kazuhiko Konomi ,  Takamichi Sano ,  Satoshi Okabe ,  Masaru Imamura

IPC: F16F1/366 ,  B60G11/14 ,  F16F1/36 ,  F16F1/06 ,  C22C21/06 ,  C22F1/047

Abstract: A wire adapted to an elastic member includes: a core that is made of metal or alloy and is elastically deformable; and an FRP layer configured to cover an outer surface of the core, and including fibers wound around the core, and thermosetting resin provided at least partially to the fibers and fixing the fibers to each other. A winding direction in which the fibers are wound around the core is along a direction of a tensile load out of the tensile load and a compressive load applied to the wire adapted to an elastic member based on a load applied from outside.

公开(公告)号：US20150252863A1

公开(公告)日：2015-09-10

申请号：US14427106

申请日：2013-09-05

Applicant: NHK SPRING CO., LTD.

Inventor： Yuitirou Ono ,  Tohru Shiraishi ,  Yoshiki Ono ,  Keita Takahashi

IPC: F16F1/02 ,  C21D9/02 ,  C21D6/00 ,  C22C38/46 ,  C22C38/34 ,  C22C38/24 ,  C22C38/22 ,  C22C38/04 ,  C22C38/02 ,  C23C8/22 ,  C23C8/02 ,  C23C8/80 ,  B24C1/10 ,  B21F3/02 ,  B21F35/00 ,  F16F1/06 ,  C21D8/06

CPC classification number: F16F1/021 ,  B21F3/02 ,  B21F35/00 ,  B24C1/10 ,  C21D1/06 ,  C21D6/002 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D7/06 ,  C21D8/065 ,  C21D9/02 ,  C22C38/02 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/18 ,  C22C38/22 ,  C22C38/24 ,  C22C38/34 ,  C22C38/46 ,  C23C8/02 ,  C23C8/22 ,  C23C8/80 ,  F16F1/06 ,  F16F2224/0216 ,  F16F2226/00 ,  F16F2236/04 ,  F16F2238/026

Abstract: The coil spring includes steel wire material containing 0.45 to 0.80 weight % of C, 0.15 to 2.50 weight % of Si, 0.3 to 1.0 weight % of Mn and iron and inevitable impurities as the remainder, and having a circle equivalent diameter of 2.5 mm to 10 mm, in which internal hardness at a freely selected cross section of the wire material is in a range of 570 to 700 Hv, C-condensed layer which exceeds average concentration of C contained in the steel wire material exists at surface layer part, and in an approximate maximum principal stress direction generated when a compressive load is loaded on spring of inner diameter side of the coil spring of the wire material, unloaded compressive residual stress at a depth of 0.2 mm and 0.4 min from surface of the wire material is not less than 200 MPa and not less than 60 MPa, respectively.

Abstract translation: 螺旋弹簧包括含有C：0.45〜0.80重量％，Si：0.15〜2.50重量％，Mn：0.3〜1.0重量％，余量不可避免的杂质的钢丝材料，圆当量直径为2.5毫米 10mm，其中线材自由选择的截面的内部硬度在570〜700Hv的范围内，超过钢丝材料中含有的C的平均浓度的C缩合层存在于表层部， 当在线材的螺旋弹簧的内径侧的弹簧上施加压缩载荷时产生的近似最大主应力方向，在线材表面的距离为0.2mm和0.4min的深度处的无载荷的压缩残余应力不是 分别小于200MPa且不小于60MPa。

公开(公告)号：US20150159252A1

公开(公告)日：2015-06-11

申请号：US14412567

申请日：2013-06-28

Applicant: NHK Spring Co., Ltd. ,  Tohoku University

Inventor： Hiroaki Matsumoto ,  Akihiko Chiba ,  Sang-Hak Lee ,  Yoshiki Ono

IPC: C22F1/18 ,  C22C14/00

CPC classification number: C22F1/183 ,  C22C14/00 ,  C22F1/00

Abstract: The present invention provides an α+β type titanium alloy and a production method therefor, which has an ultrafine structure causing superplasticity under low temperatures and has a high deformation ratio compared to conventional α+β type Ti alloys. The alloy has an ultrafine structure made of equiaxial crystals in which an area ratio of crystals having a grain diameter of 1 μm or less is 60% or more, and maximum frequency grain diameter is 0.5 μm or less, wherein a portion in which the integration degree of plane orientation of the hexagonal close-packed crystal is 1.00 or more exists within a range of 0 to 60 degrees with respect to a normal line of a processed surface of the alloy.

Abstract translation: 本发明提供α+和bgr; 钛合金及其制造方法，其具有超细结构，与常规α+＆bgr比相比，在低温下具有超塑性，并且具有高变形率; 型Ti合金。 该合金具有由等轴晶体制成的超细结构，其中晶粒直径为1μm以下的晶体的面积率为60％以上，最大频率粒径为0.5μm以下，其中， 六方密堆积晶体的面取向度相对于合金的加工面的法线在0〜60度的范围内为1.00以上。