公开(公告)号：US10994458B2

公开(公告)日：2021-05-04

申请号：US16076633

申请日：2017-02-08

Applicant: NHK Spring Co., Ltd.

Inventor： Shigeru Kuroda

IPC: B29C45/14 ,  B60G21/055 ,  F16C11/06 ,  B60G7/00 ,  B29C45/16 ,  B29K59/00 ,  B29K101/12

Abstract: Provided is a method for manufacturing a ball joint including a ball-seat molding step for forming a ball seat assembly by using, as a core, a ball section of a ball stud, the ball section of which is integrally provided in advance at one end portion of a stud section, and insert-molding a ball seat made of resin to cover at least a portion of the ball section present on an opposite side to the stud section, and a housing molding step for insert-molding a housing made of resin by using, as a core, the ball section partially covered by the ball seat of the ball seat assembly.

公开(公告)号：US09969238B2

公开(公告)日：2018-05-15

申请号：US15305837

申请日：2015-04-20

Applicant: NHK SPRING CO., LTD.

Inventor： Shigeru Kuroda

IPC: B60G21/055 ,  B21D53/88

CPC classification number: B60G21/055 ,  B21D53/88 ,  B60G2202/135 ,  B60G2206/012 ,  B60G2206/427 ,  B60G2206/724 ,  B60G2206/8103 ,  B60G2206/8402 ,  C21D9/14

Abstract: A hollow stabilizer (1) according to the invention is formed in a hollow shape and includes a bent portion (1c1, 1c2, m1-m5). With a thickness of an inner side of the bent portion (1c1, 1c2, m1-m5) being larger than a thickness of an outer side of the bent portion (1c1, 1c2, m1-m5), a hardness of the outer side of the bent portion (1c1, 1c2, m1-m5) is higher than a hardness of the inner side of the bent portion (1c1, 1c2, m1-m5) through quenching by cooling down after heating by electrical heating.

公开(公告)号：US09834060B2

公开(公告)日：2017-12-05

申请号：US14778522

申请日：2014-04-11

Applicant: NHK SPRING CO., LTD.

Inventor： Shigeru Kuroda

IPC: F16F1/36 ,  B60G21/055 ,  F16F1/16 ,  F16F1/373 ,  F16C17/12

CPC classification number: B60G21/0551 ,  B60G2204/1222 ,  B60G2204/41 ,  B60G2204/4104 ,  B60G2204/41043 ,  B60G2204/4307 ,  B60G2206/73 ,  B60G2206/821 ,  B60G2206/91 ,  F16C17/12 ,  F16F1/16 ,  F16F1/373

Abstract: A bush for a stabilizer is configured so that surface pressure at an adhered surface of a hole of the bush is uniform in adhering the bush to a bar of the stabilizer, whereby necessary adhesive strength is obtained. A bush has a body part that includes a rectangular part with a rectangular shape and a curving part having a curved shape at an outer circumferential part thereof. The body part has a side surface part on which a protruding part is formed so as to protrude outwardly. When contained in a U-shaped part of a bracket shown in FIG. 3B, the rectangular part is arranged at a straight line part of the U-shaped part, the curving part is arranged at a circular arc part of the U-shaped part, and the protruding part is pressed toward the body part by an inner surface of the U-shaped part.

公开(公告)号：US09393850B2

公开(公告)日：2016-07-19

申请号：US14408201

申请日：2013-05-22

Applicant: NHK SPRING CO., LTD.

Inventor： Shigeru Kuroda

IPC: B60G21/055 ,  F16C3/02 ,  F16C11/06 ,  B29C70/12 ,  B29C45/00 ,  B60G7/00 ,  B29C70/14 ,  B29C70/62 ,  B29K77/00 ,  B29K311/10

CPC classification number: B60G21/0551 ,  B29C45/0005 ,  B29C45/0025 ,  B29C70/12 ,  B29C70/14 ,  B29C70/62 ,  B29K2077/00 ,  B29K2311/10 ,  B60G7/001 ,  B60G2204/1224 ,  B60G2204/416 ,  B60G2206/014 ,  B60G2206/11 ,  B60G2206/7101 ,  F16C3/02 ,  F16C7/02 ,  F16C11/0638 ,  F16C11/0642 ,  F16C11/0671 ,  F16C11/0695 ,  F16C2326/05

Abstract: A stabilizer link and a manufacturing method therefor which can ensure strength required in wing plates and a center supporting plate and in a support bar, and which can ensure strength required in ribs. The support bar has a top wing plate, a bottom wing plate, a center supporting plate, and a plurality of ribs. In the wing plates and the center supporting plate, reinforcing fiber is orientated to a longitudinal direction of the support bar. In the rib, the reinforcing fiber is orientated to a perpendicular direction of the support bar. A longitudinal orientation ratio D1 at a longitudinal center portion of the top wing plate and the bottom wing plate, a perpendicular orientation ratio D2 at a perpendicular center portion of the ribs, and a perpendicular orientation ratio D3 at a perpendicular end portion of the ribs satisfy Equation 1. D1>D2>D3  Equation 1

Abstract translation: 一种稳定器连杆及其制造方法，其可以确保翼板和中心支撑板和支撑杆中所需的强度，并且可以确保肋中所需的强度。 支撑杆具有顶翼板，底翼板，中心支撑板和多个肋。 在翼板和中心支撑板中，增强纤维沿着支撑杆的纵向方向定向。 在肋中，增强纤维被定向到支撑杆的垂直方向。 在顶翼板和底翼板的纵向中心部分处的纵向取向比D1，肋的垂直中心部分处的垂直取向比率D2和肋的垂直端部处的垂直取向比率D3满足 公式1.D1> D2> D3等式1

公开(公告)号：US20150239319A1

公开(公告)日：2015-08-27

申请号：US14437856

申请日：2013-10-17

Applicant: NHK SPRING CO., LTD.

Inventor： Shigeru Kuroda ,  Shuji Ohmura

IPC: B60G21/055 ,  F16F1/38 ,  F16F1/16

CPC classification number: B60G21/0551 ,  B60G21/055 ,  B60G2202/135 ,  B60G2202/14 ,  B60G2204/1222 ,  B60G2204/41 ,  B60G2204/4103 ,  B60G2206/427 ,  B60G2206/73 ,  B60G2206/821 ,  B60G2206/91 ,  F16F1/16 ,  F16F1/38 ,  F16F1/3856

Abstract: Bonding the bush to the stabilizer bar, by surface pressure in the bonding surface (inner circumferential surface) of the hole-part of the bush being made uniform, bonding strength is obtained. The first arc part is formed at the opposite side of the opening of the U-shaped part of the bracket in the bonding and second arc part is formed in the opening side, in the hole-part of the bush. The first and second arc parts are circular arc parts being formed in circular arc shape or approximately circular arc shape or are ellipse arc part being formed in the ellipse arc shape or approximately ellipse arc shape. In the hole-part, the center of the first and second arc parts are separated. The curvature radius of the second arc part gets smaller than the curvature radius of the first arc part. The hole-part is formed in an oval shape.

Abstract translation: 通过衬套的孔部的接合面（内周面）的表面压力使衬套与稳定杆接合而得到均匀的接合强度。 第一弧部形成在接合部的托架的U字形部分的开口的相对侧，第二弧形部分形成在衬套的孔部分的开口侧。 第一和第二弧形部分是以圆弧形或大致圆弧形形成的圆弧形部分，或椭圆形弧形部分形成为椭圆弧形或大致椭圆弧形。 在孔部分中，分离第一和第二弧形部分的中心。 第二圆弧部的曲率半径比第一圆弧部的曲率半径小。 孔部形成为椭圆形。

公开(公告)号：US11460068B2

公开(公告)日：2022-10-04

申请号：US17263262

申请日：2019-05-31

Applicant: NHK SPRING CO., LTD.

Inventor： Shigeru Kuroda

IPC: F16C11/06

Abstract: An axial ball joint is provided with: a ball stud including a stud section and a ball section; a metallic housing which rotatably supports the ball section of the ball stud; and a resin-made ball seat which is provided to be interposed between the ball section and the housing. The housing is formed into a bottomed cylinder shape by pressing. The thickness of a bottom wall and the thickness of a circumferential side wall of the housing are set to be equal to each other. A plurality of bead sections are formed on the inner bottom of the housing by press-molding or forging.

公开(公告)号：US11179992B2

公开(公告)日：2021-11-23

申请号：US16497988

申请日：2018-03-23

Applicant: NHK SPRING CO., LTD.

Inventor： Shigeru Kuroda

IPC: B60G21/055 ,  F16C11/06

Abstract: The ball joint manufacturing method for manufacturing a ball joint including a ball stud which includes a substantially spherical metal ball section, and a resin housing rotatable accommodating the ball section of the ball stud, includes: a step of forming the housing to cover an outer periphery of the ball section; an induction heating step of subjecting the ball section to induction heating in a state in which the ball section is accommodated in an accommodation section of the housing until the temperature of the ball section reaches a predetermined target temperature; and a cooling step of cooling the ball section which has been subjected to the induction heating, wherein a torque adjustment step including the induction heating step and the cooling step is repeatedly performed.

公开(公告)号：US11167616B2

公开(公告)日：2021-11-09

申请号：US16327820

申请日：2017-08-23

Applicant: NHK SPRING CO., LTD.

Inventor： Shigeru Kuroda

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

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：US20210276390A1

公开(公告)日：2021-09-09

申请号：US16330590

申请日：2017-08-23

Applicant: NHK SPRING CO., LTD.

Inventor： Shigeru Kuroda ,  Shuji Ohmura

IPC: B60G21/055 ,  B60G7/00

Abstract: A stabilizer link includes a support bar, and ball joints. The ball joint includes a ball stud including a ball portion and a stud portion, and a housing that turnably supports the ball portion of the ball stud. The stabilizer is formed of a rod-shaped member made of metal. Mounting portions to which the stabilizer links are to be joined are respectively provided at both ends of the stabilizer. Through-holes through which the stud portions of the ball studs are to be inserted are respectively provided in the mounting portions. The stabilizer link is joined to the stabilizer by press-fitting the stud portion of the ball stud into the through-hole of the mounting portion.

公开(公告)号：US10259285B2

公开(公告)日：2019-04-16

申请号：US15327587

申请日：2015-07-17

Applicant: NHK SPRING CO., LTD.

Inventor： Shigeru Kuroda ,  Hiroaki Suzuki

IPC: B60G21/055 ,  F16F1/36 ,  B60G21/02 ,  B60G21/04 ,  B60G21/05 ,  B29C65/10 ,  B29C65/44 ,  B29C65/48 ,  B29C65/78 ,  B29C65/00 ,  B29L31/00 ,  B29L31/30

Abstract: A stabilizer manufacturing apparatus is adapted to bond a rubber bush, which is a bush made of rubber disposed between a stabilizer and a vehicle body, to a rubber bush bonding location where an adhesive layer of the stabilizer is formed. The stabilizer manufacturing apparatus is provided with: a curing furnace for heating the stabilizer, which is conveyed by a manufacturing line conveying unit and has the rubber bush bonding location with which the rubber bush is press-contacted, and performing the bonding; a heat source device that heats air; a blower device that sends the air heated by the heat source device as hot air; and a plurality of nozzles that are disposed along the manufacturing line conveying unit in the curing furnace and blow the hot air against, at a near position from, a location in the vicinity of the rubber bush bonding location of the stabilizer.