Patent ID: 11885366
Assignee: AOYAMA SEISAKUSHO CO., LTD.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 9:
10. A method for fixing the piercing nut according to claim 5 to an inner surface of a mating member having a closed sectional shape, the method comprising:
holding the piercing nut on the inner surface of the mating member having the closed sectional shape and bringing the bearing surface of the piercing nut into contact with the inner surface of the mating member;
lowering a die disposed outside the mating member and punching the mating member by a ring-shaped protrusion of the die; and
clinching and fixing the piercing nut to the inner surface of the mating member while supporting the mating member on the bearing surface of the piercing nut.