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 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: 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.

Abstract: A stabilizer bar with rubber bush includes a stabilizer bar (2), and at least one rubber bush (6) adhesively fixed to at least a portion of the stabilizer bar. The stabilizer bar (2) and the rubber bush (6) are adhesively fixed to each other with an adhesive agent layer (3). The adhesive agent layer (3) includes a primer agent layer (4) formed on a surface of the stabilizer bar (2) and having a dry film thickness of 3 ?m or more and 13 ?m or less; and a first top coat agent layer (5) formed on the primer agent layer (4) and having a dry film thickness of 5 ?m or more and less than 13 ?m.

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 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: 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.

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: This ball joint is provided with: a ball stud having a stud part one end of which is coupled to a stabilizer device or a suspension device, and the other end of which is integrally joined to a ball part; a housing made of a metal material having a space, one end of which is open and which swingably and turnably supports the ball part of the ball stud; and a ball seat interposed between the housing and the ball part. A swaged section for swaging the ball seat is a lump having a mountain-shaped cross-section into which an opening rim part thinner than a trunk section of the housing is deformed by a compressive load.

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.

Abstract: A ball joint has a ball stud, a housing and a ball seat (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: 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: 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: 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.

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.

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.

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.

Abstract: A stabilizer manufacturing apparatus for manufacturing a stabilizer to which rubber bushes are heat-bonded is provided with a curing furnace in which high-frequency induction heating is performed, a conveyor for conveying the stabilizer in a conveying direction through the curing furnace, the rubber bushes being pressure-bonded to bonding locations on the stabilizer on which an adhesive layer is formed, power supply devices for supplying power to coils used in the high-frequency induction heating, and coils for generating a magnetic field in portions to be heated of the stabilizer near the bonding locations and for heating the portions to be heated; the coils being separated by a predetermined distance from the portions to be heated of a predetermined number of stabilizers conveyed in the conveying direction.

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.

Abstract: A suspension arm member includes a connecting portion configured to connect plural members of a suspension, and a support bar extending and provided with the connecting portion at each end. The support bar is made of a resin material and includes plural lightening hole portions each formed in a shape of a recessed portion. The lightening hole portions include plural front upper lightening hole portions (11) formed in a front upper portion of the support bar, plural front lower lightening hole portions formed in a front lower portion of the support bar, plural rear upper lightening hole portions formed in a rear upper portion of the support bar, and plural rear lower lightening hole portions formed in a rear lower portion of the support bar.