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公开(公告)号：US10266027B2
公开(公告)日：2019-04-23
申请号：US15277611
申请日：2016-09-27
Applicant: NHK SPRING CO., LTD.
Inventor： Hideto Enomoto , Jun Umeno , Ken Okura , Shuji Ohmura
Abstract: An end turn portion of a coil spring includes a first portion, a second portion, and a third portion. The first portion is always in contact with a spring seat irrespective of the magnitude of a load applied to the coil spring. The second portion contacts the spring seat when the load applied to the coil spring is large, and is separated from the spring seat when the load is small. The third portion is always separated from the spring seat irrespective of the magnitude of the load. An insulating sheet made of a material having rubber elasticity is attached to a lower surface of a wire at the end turn portion by means of adhesive bonding. The insulating sheet is provided on a lower surface of a region including at least the second portion.
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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.
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公开(公告)号：US10899188B2
公开(公告)日：2021-01-26
申请号：US16799916
申请日：2020-02-25
Applicant: NHK SPRING CO., LTD.
Inventor： Ken Okura , Shuji Ohmura , Shusaku Hayashi
Abstract: A coil spring includes a wire shaped to be helical, and is compressed between an upper spring seat and a lower spring seat. The coil spring includes an upper portion and a lower portion. A positive pitch winding end portion is formed on the upper portion of the coil spring. A terminal-point-strong-abutting-portion is formed at a distal end of the winding end portion. The terminal-point-strong-abutting-portion is in contact with the upper spring seat at one point at a position deviated to an inner side of a vehicle with respect to a coil central axis. On the lower portion of the coil spring, an end turn portion which contacts the lower spring seat is formed.
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