Patent ID: 11885388
Assignee: SUMITOMO RIKO COMPANY LIMITED
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 10:
11. A method of manufacturing a vibration damping device that comprises an inner including an annular projection extending outward in an axial direction from at least one axial end face of the inner, an outer having a tubular shape and disposed on a radially outer side of the inner, an elastic body connecting an inner circumferential surface of the outer and an outer circumferential surface of the inner, and a retainer disposed on at least one axial end of the inner and penetrated by an opening in the axial direction, the method comprising
a compression step of using a compression jig having an outer circumferential surface of tubular shape, the outer circumferential surface including a plurality of expanded parts that are expanded in a radial direction and arranged apart from each other in a circumferential direction, and inserting the compression jig into a radial inside of the annular projection of the inner inserted in the opening of the retainer such that portions of the annular projection at which the respective expanded parts of the compression jig are placed are compressed against an inner circumferential surface of the opening of the retainer to provide a plurality of compressed fixation parts arranged apart from each other in a circumferential direction of the annular projection and to fix the retainer to the inner.