Patent ID: 8905417

Claim:
A production method for stabilizer links, comprising: a preparing step in which a stud ball, a ball seat having a flange portion extending to a radial direction outside, and a dust cover having a fixing portion are prepared, a subassembly forming step in which a subassembly having the stud ball, the ball seat, and the dust cover is formed, a fixing step in which the ball seat of the subassembly is inserted into a hole of a ring member and the ring member is fixed to an outer peripheral portion of the ball seat, and an injection molding step in which the subassembly is inserted into a forming die as a core, a cavity is formed, and injection molding is performed by injecting a resin into the cavity, so that a housing covering an outer peripheral portion of the ball seat and a support bar supporting the housing are integrally formed, wherein in the subassembly forming step, an inner peripheral side radial direction surface of the fixing portion of the dust cover is abutted to an outer peripheral side radial direction surface of the flange portion of the ball seat, in the fixing step of the ring member, an outer peripheral portion of the ball seat and an inner peripheral portion of the ring member are abutted, an outer peripheral side radial direction surface of the fixing portion of the dust cover is pressed toward the flange portion of the ball seat by a surface of the ring member, and the fixing portion of the dust cover is held by the radial direction surface pressing portion of the die and the flange portion of the ball seat, and in the inserting of the subassembly into the forming die, a predetermined gap is provided between an inner surface of the forming die and the outer peripheral portion of the ball seat, an end portion of the forming die is abutted to another surface of the ring member, and the cavity is formed by an inner surface of the forming die, the outer peripheral surface of the ball seat, and the other surface of the ring member.