公开(公告)号：US10543767B2

公开(公告)日：2020-01-28

申请号：US15785274

申请日：2017-10-16

Applicant: NHK SPRING CO., LTD.

Inventor： Yoshitaka Sasaki ,  Shunichirou Osa ,  Akihiro Hayashi ,  Hiroaki Takeuchi ,  Kazuki Hirao

IPC: B60N2/68 ,  A47C7/18 ,  B60N2/70

Abstract: A cushion pan for a seat cushion is formed from a metal sheet and the cushion pan includes: an outer frame section that is formed in a frame shape in a seat plan view, a pair of mutually opposing sides of the outer frame section each including a horizontal portion with a respective thickness direction along a seat up-down direction; a pair of side plate portions that extend toward one side in the seat up-down direction from facing end portions of the pair of horizontal portions; and a plate spring portion having a flat plate shape bridging between ends of the pair of side plate portions on an opposite side of the side plate portions from the pair of horizontal portions.

公开(公告)号：US20200009937A1

公开(公告)日：2020-01-09

申请号：US16571483

申请日：2019-09-16

Applicant: NHK SPRING CO., LTD.

Inventor： Takahiro NAKAMURA ,  Kenji KATSUNO

IPC: B60G21/055 ,  F16B11/00

Abstract: A stabilizer is provided with a restriction ring connected to a torsion portion at a connection portion adjacent to a bush. The restriction ring has a body, a female portion, a male portion, and a welded portion. The female portion has gripping portions with a spacing therebetween decreasing in the direction away from a valley bottom portion. The male portion has a neck portion, an expansion portion, and a contraction portion. The welded portion covers at least the range of the contraction portion and the valley bottom portion and melts in the plate thickness direction from the outer peripheral surface.

公开(公告)号：US20190390727A1

公开(公告)日：2019-12-26

申请号：US16559137

申请日：2019-09-03

Applicant: NHK SPRING CO., LTD.

Inventor： Takeshi SUZUKI ,  Yoshiki ONO ,  Shimpei KUROKAWA ,  Kosuke SHIBAIRI

IPC: F16F1/02 ,  C21D9/02

Abstract: A spring consists of, by mass %, 0.5 to 0.7% of C, 1.0 to 2.0% of Si, 0.1 to 1.0% of Mn, 0.1 to 1.0% of Cr, not more than 0.035% of P, not more than 0.035% of S, and the balance of Fe and inevitable impurities. The spring has a structure including not less than 65% of bainite and 4 to 13% of residual austenite by area ratio in a cross section. The spring has a compressive residual stress layer in a cross section from a surface to a depth of 0.35 mm to D/4, in which D (mm) is a circle-equivalent diameter of the cross section. The spring has a high hardness layer with greater hardness than a center portion by 50 to 500 HV from a surface to a depth of 0.05 to 0.3 mm.

公开(公告)号：US10471858B2

公开(公告)日：2019-11-12

申请号：US15900378

申请日：2018-02-20

Applicant: NHK SPRING CO., LTD.

Inventor： Tetsuya Sasaki ,  Yukihiro Hakuta ,  Shigeo Fujii ,  Tomoyuki Sato ,  Daichi Takigawa

IPC: B60N2/12 ,  B60N2/30 ,  B60N2/14 ,  B60N2/10

Abstract: A vehicle seat that includes: a support bracket that is provided at a floor of a vehicle; a rotation bracket that is coupled to the support bracket; a lock member that is provided at the floor; a lower rail being fixed to the rotation bracket and being locked by the lock member; an upper rail that is attached to the lower rail so as to be capable of sliding in a vehicle front-rear direction; a seat body that is fixed to the upper rail; a rotation force application member that applies rotation force to the rotation bracket such that the lower rail rotates in a direction in which the seat body springs up; and a speed reduction member that reduces a rotation speed of the rotation bracket in a case in which the seat body springs up.

公开(公告)号：US10431245B2

公开(公告)日：2019-10-01

申请号：US15071676

申请日：2016-03-16

Applicant: NHK SPRING CO., LTD.

Inventor： Akira Nojima

IPC: G11B5/48 ,  H01L41/09 ,  H01L41/253 ,  H01L41/27 ,  H01L41/37 ,  G11B5/55 ,  H01L41/338 ,  H01L41/047 ,  H01L41/053 ,  C08G59/72 ,  C08G73/10 ,  H01L41/29

Abstract: A piezoelectric element easily and surely forms polymer coatings on peripheral end faces of the piezoelectric element without deteriorating a yield of the piezoelectric element. The piezoelectric element is manufactured by a method including steps of cutting a piezoelectric element out from a base piezoelectric material plate so that peripheral end faces are formed to define a peripheral shape of the piezoelectric element, and forming polymer coatings on at least objective areas of the peripheral end faces of the piezoelectric element by vapor deposition polymerization.

公开(公告)号：US10358008B2

公开(公告)日：2019-07-23

申请号：US14924319

申请日：2015-10-27

Applicant: NHK SPRING CO., LTD.

Inventor： Kenji Yamamotoya ,  Hideto Enomoto ,  Ken Takahashi ,  Toshiaki Sato ,  Mitsuhiro Sugiyama ,  Yoshio Kobayashi ,  Taichi Inage ,  Tomotake Kato ,  Akihiko Nishikawa ,  Masahiro Umezawa ,  Michihiko Ayada ,  Suguru Kajigaya

IPC: B60G11/14 ,  F16F1/06 ,  F16F9/32 ,  F16F1/04 ,  B60G15/06

Abstract: A suspension coil spring includes a lower end turn portion, an upper end turn portion, and a helical effective portion formed between the end turn portions. The lower end turn portion includes a first portion which contacts a lower spring seat irrespective of a load, and a second portion which contacts the lower spring seat or is separated from the same according to the load. The wire diameter of the second portion is greater than that of the first portion and an average wire diameter of the effective portion. The upper end turn portion includes a third portion which contacts an upper spring seat, and a fourth portion. The wire diameter of the fourth portion is greater that of the third portion and the average wire diameter of the effective portion.

公开(公告)号：US20190217679A1

公开(公告)日：2019-07-18

申请号：US16327820

申请日：2017-08-23

Applicant: NHK SPRING CO., LTD.

Inventor： Shigeru Kuroda

IPC: B60G21/055 ,  B60G7/00 ,  F16C11/06 ,  B21D53/10

CPC classification number: B60G21/0551 ,  B21D53/10 ,  B60G7/005 ,  B60G21/055 ,  B60G2204/1224 ,  B60G2204/416 ,  B60G2206/7104 ,  B60G2206/724 ,  B60G2206/81 ,  B60G2206/83 ,  F16C11/06

Abstract: This stabilizer link includes a metal support bar, and ball joints that are provided at both ends of the support bar. Each ball joint includes a ball stud one end of which is fastened to a suspension device or a stabilizer, and which has a ball part at the other end thereof, and a housing that rotatably supports the ball part of the ball stud. The support bar includes: a body part extending in a nearly linear shape, and reinforcement parts each having a nearly annular shape and each provided at both ends of the body part. The reinforcement parts of the support bar are each embedded in the housing so as to surround the ball part.

公开(公告)号：US10350616B2

公开(公告)日：2019-07-16

申请号：US14433744

申请日：2013-10-08

Applicant: NHK Spring Co., Ltd.

Inventor： Satoshi Hirano

IPC: B05B1/02 ,  B05B7/14 ,  B05D1/12 ,  C23C24/04 ,  B05D3/04

Abstract: A film forming method of forming a film by accelerating powder of a material with gas and spraying and depositing the powder onto a surface of a substrate with the powder being kept in a solid state includes: a substrate film forming step of forming a film. The film forming step includes jetting out the powder and inert gas from a nozzle towards the substrate, causing inside of the chamber to be under positive pressure by the inert gas, and depositing the powder on the surface of the substrate.

公开(公告)号：US20190202255A1

公开(公告)日：2019-07-04

申请号：US16330354

申请日：2017-08-07

Applicant: NHK SPRING CO., LTD.

Inventor： Shuji Ohmura ,  Shigeru Kuroda

IPC: B60G21/055 ,  B60G7/00

CPC classification number: B60G21/0551 ,  B60G7/005 ,  B60G21/04 ,  B60G21/055 ,  B60G2202/135 ,  B60G2204/1224 ,  B60G2204/416 ,  F16J3/04 ,  F16J15/52

Abstract: A stabilizer includes: a stabilizer bar made of a pipe material; and a stabilizer link that couples the stabilizer bar and a suspension device. The stabilizer link includes a ball stud which includes a shaft portion inserted to and fixed in an opening end of the stabilizer bar and a ball portion formed at a leading end of the shaft portion, a housing which rotatably supports the ball portion, and a flexible dust cover which includes one end attached on the housing so as to be unmovable in a ball stud axis direction and the other end attached on at least either of the shaft portion and the stabilizer bar and which seals a space between the housing and the ball stud.

公开(公告)号：US10332551B2

公开(公告)日：2019-06-25

申请号：US14869097

申请日：2015-09-29

Applicant: NHK SPRING CO., LTD.

Inventor： Hiroyoshi Uetake ,  Yukihiro Hayashi

IPC: G11B5/48

Abstract: A warp correction apparatus includes an elastic mat, a first sheet supply unit which supplies a first clean sheet on the elastic mat, a workpiece holding mechanism which supplies the plate-like workpiece (a frame unit) on the first clean sheet, a second sheet supply unit which supplies a second clean sheet above the first clean sheet, a pressure roller, a first elevator unit which moves the second clean sheet up and down, a second elevator unit which presses the pressure roller toward the elastic mat, and a roller moving mechanism. The pressure roller is moved along an upper surface of the elastic mat by the roller moving mechanism while the frame unit is sandwiched between the elastic mat and the pressure roller.