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.

Abstract: The ball joint includes a metal ball stud which includes a ball section and a resin housing which rotatably supports the ball section of the ball stud. A limiting member configured to limit molding shrinkage of the housing is embedded in the housing at an interval with respect to an equatorial section of the ball section such that the limiting member is positioned to surround at least the equatorial section of the ball section.

Abstract: A ball joint comprises: a ball stud which includes a stud part on one end side connected to a structure and a ball part on the other end side; a housing which oscillatably and rotatably supports the ball part of the ball stud; and a ball sheet disposed between the housing and the ball part. The ball sheet includes a recessed/protruding part formed of at least one of a recessed portion and a protruding portion on a surface facing the housing. The housing includes a fitting part having at least one of a protruding shape and a recessed shape each of which fits to the recessed/protruding part.

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.

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.

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.

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.

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.

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.

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.

Abstract: A ball joint has a ball stud, a housing and a ball seat. The seat is an elastic body in a tubular shape with the top and the bottom being open, and has a spherical space to accommodate a ball portion. The housing has a spherical inner face that is close to an outer periphery of the ball portion, to accommodate the ball portion in the inner face via the seat so as to support the ball stud. A clamped portion arranged at a peripheral end of the housing is clamped to press the seat so that the ball stud can be swung and rotated.

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.

Abstract: The ball joint includes a metal ball stud which includes a ball section and a resin housing which rotatably supports the ball section of the ball stud. A limiting member configured to limit molding shrinkage of the housing is embedded in the housing at an interval with respect to an equatorial section of the ball section such that the limiting member is positioned to surround at least the equatorial section of the ball section.

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.

Abstract: This ball joint is provided with: a ball stud, one end being fastened to a suspension device/stabilizer, and the other end having a ball part; a housing that rotatably supports the ball part of the ball stud; and a ball seat provided so as to be interposed between the housing and the ball part, the ball seat having an inner spherical part for accommodating the ball part. The ball seat is provided to the housing by insert injection molding. The inside diameter dimension of the inner spherical part formed by separate injection molding is set to a dimension corresponding to the anticipated amount of molding shrinkage of the resin during the insert injection molding.

Abstract: A stabilizer link includes a support bar and a ball joint. The ball joint includes a ball stud having a ball portion and a stud portion. The stabilizer has two end portions, each of which includes an attachment portion for joining the stabilizer link. The attachment portion has a through hole, through which an elastic member provided at the stud portion is attached to the attachment portion. The elastic member includes a body portion and tab portions. The stud portion is joined to the attachment portion through the elastic member in such a manner that while the elastic member is attached to the through hole, the body portion abuts on an inner circumferential wall portion of the through hole and the tab portions are located to cover circumferential edge portions of the through hole.

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.

Abstract: The stabilizer link is used for linking a suspension and a stabilizer provided in a vehicle and includes: a support bar; and a pair of ball joints provided at two ends of the support bar, each of the pair of ball joints includes: a ball stud including a stud portion and a ball portion, and a support member which rotatably supports the ball portion of the ball stud and to which the support bar is connected, at least one end of the support bar is provided with a link protector, and the link protector includes: a main portion having a cylindrical shape with a bottom and covering the support member, a drainage mechanism for discharging water that has entered a gap between the support member and the link protector, and a holding portion holding the support bar.

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.

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.