公开(公告)号：US10850589B2

公开(公告)日：2020-12-01

申请号：US16330354

申请日：2017-08-07

Applicant: NHK SPRING CO., LTD.

Inventor： Shuji Ohmura ,  Shigeru Kuroda

IPC: B60G21/055 ,  F16J3/04 ,  F16J15/52 ,  B60G21/04 ,  B60G7/00

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：US20180252258A1

公开(公告)日：2018-09-06

申请号：US15551795

申请日：2016-02-02

Applicant: NHK Spring Co., Ltd.

Inventor： Shigeru Kuroda

IPC: F16C11/06 ,  B60G21/055

CPC classification number: F16C11/0638 ,  B60G21/055 ,  B60G21/0551 ,  B60G2204/1224 ,  B60G2204/416 ,  F16C11/0647 ,  F16C11/0657 ,  F16C2208/60 ,  F16C2208/66 ,  F16C2220/04 ,  F16C2326/05

Abstract: A stabilizer link of the present invention includes connecting parts that has a housing which supports a ball stud to be connected to the first or second structure so as to be swingable and rotatable, wherein the ball stud has a stud part extending from a spherical part and the housing houses a support member to support a spherical part of the ball stud in a spherical space so as to be slidable, wherein the support member includes: an opening where the spherical space is open for the stud part; a lubricant receiving part in a concave shape that faces the opening; and a wall surface that forms the spherical space for the spherical part to slide thereon and has recessed grooves formed on both sides or one side of a portion of the wall surface having the maximum inner radius about the central axis of the spherical space.

公开(公告)号：US10052929B2

公开(公告)日：2018-08-21

申请号：US14437856

申请日：2013-10-17

Applicant: NHK SPRING CO., LTD.

Inventor： Shigeru Kuroda ,  Shuji Ohmura

IPC: A47C23/00 ,  B60G21/055 ,  F16F1/16 ,  F16F1/38

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.

公开(公告)号：US11982309B2

公开(公告)日：2024-05-14

申请号：US17627300

申请日：2020-07-13

Applicant: NHK SPRING CO., LTD.

Inventor： Shigeru Kuroda ,  Yuya Nagata

IPC: F16C11/06

CPC classification number: F16C11/0623 ,  F16C11/0685

Abstract: A ball joint includes: a ball stud including a stud portion having one end portion connected to a structural member and another end portion, to which a ball portion is integrally joined; a housing made of metal and configured to support the ball portion to allow swinging and rotating movement of the ball portion; and a ball seat made of plastic and interposed between the housing and the ball portion. The ball seat includes a plurality of protrusions jutting out from the ball seat and inserted into a plurality of through holes formed in a bottom portion of the housing. The protrusions having pierced through the through holes are staked at their distal portions. The protrusion of the ball seat has a large diameter portion, whose diameter is larger than an inner diameter of the through hole, at its proximal portion proximal from the distal portion thereof.

公开(公告)号：US11754114B2

公开(公告)日：2023-09-12

申请号：US17050100

申请日：2019-04-12

Applicant: NHK SPRING CO., LTD.

Inventor： Shigeru Kuroda

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

CPC classification number: F16C11/0685 ,  B60G7/005 ,  B60G21/0551 ,  B60G2204/416 ,  B60G2204/422 ,  B60G2206/427 ,  F16C2326/05

Abstract: An axial ball joint includes a ball stud including a stud portion and a ball portion; a metal housing configured to rotatably support the ball portion of the ball stud; a resin ball sheet provided in an interposed manner between the ball portion and the housing. The housing is formed in a bottomed cylindrical shape by press work. The housing has a bottom wall and a peripheral side wall which are set respectively to thicknesses substantially equal to each other. The bottom wall and the peripheral side wall of the housing have therebetween a boundary portion formed with multiple rib portions which project in a brace shape from outside to inside of the housing.

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：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：US10220666B2

公开(公告)日：2019-03-05

申请号：US15518422

申请日：2015-09-28

Applicant: NHK SPRING CO., LTD.

Inventor： Shigeru Kuroda

IPC: B60G7/00 ,  F16C7/02 ,  F16C11/06 ,  B60G21/055

Abstract: A link arm member of the present invention is used in a vehicle for connecting a suspension and a stabilizer, and includes: a support bar that is sealed by plastically deforming a hollow metal pipe at both ends thereof; and a housing part made of resin that is arranged at each end of the support bar and has a receiving hole for receiving a ball part of a ball stud to which the suspension or the stabilizer is fixed, wherein the housing part is formed by insert molding with the support bar.

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：US09969237B2

公开(公告)日：2018-05-15

申请号：US14408157

申请日：2013-05-24

Applicant: NHK SPRING CO., LTD.

Inventor： Shigeru Kuroda ,  Shuji Ohmura

IPC: B60G21/055 ,  C21D1/40 ,  C21D9/00 ,  C21D9/08 ,  H05B3/02

CPC classification number: B60G21/055 ,  B60G2206/427 ,  B60G2206/80 ,  C21D1/40 ,  C21D9/0068 ,  C21D9/08 ,  H05B3/023

Abstract: A method for producing a stabilizer and a heating device allows the entirety of a hollow member to be uniformly heated to a temperature necessary for heat treatment, even in a case in which a cross section varying hollow member is used as the starting material. In a preliminary heating process, energizing heating is performed between electrodes, which are arranged at cross section varying parts at both ends of large cross sectional area part, which can be heated. In an entire heating process, by performing energizing heating between electrodes, which are arranged at both ends of the cross section varying hollow member, the latter can be heated. In the preliminary heating process, it is desirable to perform energization heating at a part having a cross sectional area ratio of 90% or more with respect to the part having a large cross sectional area in the cross section varying part.