BALL JOINT AND ITS HOUSING

PROBLEM TO BE SOLVED: To provide a housing and a ball joint having the housing in which only the deformation part is positively deformed, a holding part for holding the end part of a dust cover can be formed in less-expensive manner without requiring any additional processing.SOLUTION: There is provided a receptacle part 38 at the upper end of a housing main body 37. There is provided a deformation part 39 adjacent to the receptacle part 38 and at the upper end part of the housing main body 37. A sum of angles α and β at the outer peripheral surface of the housing main body 37 of each of the receptacle part 38 and the deformation part 39 in an axially perpendicular direction R is set to be less than 180°. The outer peripheral surface of the housing main body 37 between the deformation part 39 and the receptacle 38 becomes a deformed part 40. A load added to the deformation part 39 along an axial direction of the housing main body 37 when it is plastically deformed is concentrated to the deformed part 40 and influence is hardly applied to the receptacle part 38. Only the deformation part 39 is positively deformed and a fitting groove for holding the end part of a dust cover can be formed in less-expensive manner without performing any additional processing.SELECTED DRAWING: Figure 1 【課題】変形部のみを確実に変形させて、ダストカバーの端部を保持する保持部を、別途加工を要することなく安価に形成できるハウジング及びこれを備えたボールジョイントを提供する。【解決手段】ハウジング本体37の上端側に受け部38を設ける。受け部38に隣接してハウジング本体37の上端部に変形部39を設ける。受け部38と変形部39のそれぞれのハウジング本体37の軸直方向Ｒに対する外周面の角度α，βの和が１８０°未満となるように設定する。変形部39と受け部38の間のハウジング本体37の外周面が変曲部40となり、塑性変形させる際にハウジング本体37の軸方向に沿って変形部39に加える荷重を変曲部40に集中させて受け部38側に影響を与えにくい。変形部39のみを確実に変形させて、ダストカバーの端部を保持する嵌合溝を、別途加工を要することなく安価に形成できる。【選択図】図１