公开(公告)号：US10190621B2

公开(公告)日：2019-01-29

申请号：US14910993

申请日：2014-08-08

Applicant: NHK SPRING CO., LTD.

Inventor： Akihiko Kitazawa ,  Iroku Suzuki ,  Kouichi Kusakawa

IPC: F16C1/26 ,  F16C1/10

Abstract: An outer casing for a control cable 10 has an inner tube 12, which includes a crystalline resin, and an outer tube 14, which includes an outer resin layer 16 covering the outer periphery of the inner tube and, in the outer resin layer, includes plural metal wires 18 buried in parallel with the axial direction of the inner tube and at equal intervals in the circumferential direction of the inner tube.

公开(公告)号：US20190003523A1

公开(公告)日：2019-01-03

申请号：US16069407

申请日：2017-01-17

Applicant: NHK Spring Co., Ltd.

Inventor： Shigeru Kuroda

IPC: F16C11/06 ,  B60G7/00 ,  H05B6/10

Abstract: A torque tuning method includes a high-frequency induction heating apparatus that generates a magnetic field from a coil by passing an alternating current (i) to the coil, which is arranged so as to be separated from an outer housing. By passing the current (i) having a predetermined frequency from the high-frequency induction heating apparatus to the coil, a ball portion is induction-heated by a magnetic field generated from the coil through which the current (i) flows, and after the ball portion has reached a temperature at which a ball seat can be deformed by induction heating, the current (i) is stopped and the ball portion is cooled.

公开(公告)号：US20180370388A1

公开(公告)日：2018-12-27

申请号：US16013057

申请日：2018-06-20

Applicant: NHK SPRING CO., LTD.

Inventor： Takeshi Nakamura ,  Kenichi Katsube ,  Shota Arimoto ,  Tomoki Koga

IPC: B60N2/02 ,  B60R16/03 ,  B60R16/02 ,  B60N2/07

Abstract: A power supply unit including a slide rail that has an opening at an upper side a slider that slides along the slide rail, a first connector that is fixed to one end portion of the slide rail, a second connector that is fixed to the slider, and a flexible cable that is housed inside the slide rail, that has one end connected to the first connector, and that has another end folded back and connected to the second connector.

公开(公告)号：US10155425B2

公开(公告)日：2018-12-18

申请号：US15421372

申请日：2017-01-31

Applicant: NHK SPRING CO., LTD.

Inventor： Shinichi Nishizawa

IPC: B60G11/14 ,  F16F1/12 ,  B60G3/02

Abstract: A coil spring for use in a link-motion-type suspension includes a lower end turn portion, an upper end turn portion, and an effective portion of a cylindrical shape between the lower end turn portion and the upper end turn portion. Further, the coil spring includes a bowing control portion including a taper portion formed in at least one end turn portion of the lower end turn portion and the upper end turn portion. The taper portion has a shape whose thickness is reduced from the middle of the end turn portion toward a distal end of a wire along its length, and bowing of the effective portion is suppressed by absorbing a change in the inclination of a spring seat by the taper portion.

公开(公告)号：US10109307B2

公开(公告)日：2018-10-23

申请号：US14950631

申请日：2015-11-24

Applicant: NHK SPRING CO., LTD.

Inventor： Tadashi Tokiwa ,  Naoki Moriya

IPC: G11B5/48

Abstract: A positioning method positions a flexure whose front end side is joined to an outside frame with respect to a load beam, keeps the positioned state of the flexure and load beam, plastically deforms the outside frame to bend the front end side of the flexure so that the position of a tongue of the flexure is adjusted to the position of a dimple of the load beam, and joins the flexure and load beam to each other to keep the position adjusted state of the tongue.

公开(公告)号：US20180298972A1

公开(公告)日：2018-10-18

申请号：US15562793

申请日：2016-03-16

Applicant: NHK Spring Co., Ltd.

Inventor： Masaru Matsubara ,  Suguru Kajigaya

IPC: F16F1/02 ,  F16F1/06 ,  C21D9/02

Abstract: This coil spring has a part of high hardness and a part of lower hardness than the part. Also, it is preferable that the hardness of the part that comes into contact with other members is lower than the hardness of the part other than the part that comes into contact with the other members. Moreover, it is preferable that the hardness of an end turn part of the coil spring is lower than the hardness of the part other than the end turn part. Furthermore, it is preferable that the hardness of the part that comes into contact with a receiving member adapted to receive the end turn part of the coil spring is lower than the hardness of the part other than the part that comes into contact with the receiving member.

公开(公告)号：US10101253B2

公开(公告)日：2018-10-16

申请号：US15448843

申请日：2017-03-03

Applicant: NHK SPRING CO., LTD.

Inventor： Mikio Arai

IPC: G01N3/32 ,  G11B5/55 ,  G11B20/18 ,  G11B19/08 ,  G11B5/48

Abstract: The present invention provides a method of surely detecting a crack in piezoelectric elements regardless of size of the crack. The method includes applying voltage to a first piezoelectric element of a pair of piezoelectric elements to cause deformation in the first piezoelectric element, forcibly deforming a second piezoelectric element of the pair of the piezoelectric elements to generate voltage from the second piezoelectric element according to the deformation of the first piezoelectric element, finding a transfer function of the pair of the piezoelectric elements based on values of the applied voltage and the generated voltage, and detecting presence or absence of a crack in the pair of the piezoelectric elements based on an objective value obtained from the found transfer function.

公开(公告)号：USD828809S1

公开(公告)日：2018-09-18

申请号：US29568307

申请日：2016-06-16

Applicant: NHK SPRING CO., LTD.

Designer： Yohei Kameda ,  Yoshiki Ono ,  Kazuhisa Matsumoto

公开(公告)号：US10065471B2

公开(公告)日：2018-09-04

申请号：US15421380

申请日：2017-01-31

Applicant: NHK SPRING CO., LTD.

Inventor： Shinichi Nishizawa

IPC: B60G11/14 ,  F16F1/12

Abstract: A coil spring for a vehicle suspension according to one embodiment includes a lower end turn portion, an upper end turn portion, and a cylindrical effective portion between the lower end turn portion and the upper end turn portion. In at least one of the upper end turn portion and the lower end turn portion, a taper portion having a taper length and a taper thickness for controlling a force line of the coil spring is formed. The taper portion is formed such that the thickness is reduced in a tapered way from a thickness varying portion provided in the middle of the end turn portion toward a distal end of the wire along its length. The thickness varying portion is arranged at a position close to the force line.

公开(公告)号：US10052989B2

公开(公告)日：2018-08-21

申请号：US15051048

申请日：2016-02-23

Applicant: NHK SPRING CO., LTD.

Inventor： Yoshitaka Sasaki ,  Yusuke Ohkawara

IPC: B60N2/815 ,  B60N2/818 ,  B60N2/894

CPC classification number: B60N2/818 ,  B60N2/815 ,  B60N2/894

Abstract: A headrest device comprising: a left and right pair of headrest stays that are fixed to a seatback frame in a state projecting out toward an upper side of a seatback of a vehicle seat; a headrest main body that has the pair of headrest stays inserted inside from a lower face of the headrest main body and that is supported by the pair of headrest stays; and a removal restricting mechanism that is provided inside the headrest main body, that restricts removal of the headrest main body from the pair of headrest stays, and that releases the restriction by a release operation portion positioned inside the headrest main body being press-operated from an outside of the headrest main body.