Method of Producing Ring Member

A method of producing a ring member includes a cutting process in which a rectangular sheet is formed by cutting a strip-shaped material pulled out from a coiled material; a joining process in which opposite edges of the sheet are butted, and a cylindrical member is formed by joining the edges to each other; and a ring formation process in which a ring member is formed by cutting the cylindrical member in a direction perpendicular to an axis of the cylindrical member. In the cutting process, the strip-shaped material is i) cut along one of a first section line parallel to an edge of the strip-shaped material facing a direction in which the strip-shaped material is pulled, or a second section line perpendicular to the edge, and then ii) cut along the other of the first or second section line, that is perpendicular to the line previously cut.

The invention relates to a method of producing a ring member, and particularly relates to a method of producing a ring member used to form, for example, an endless metal belt (power transmission belt) of a continuously variable transmission.

Attached files:


Patents:
US 20,100,288,010

Inventor(s): SUZUKI YUJI [JP]

Type of Offer: Sale



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