Title:
METHOD AND DEVICE FOR MANUFACTURING RING, AND RING
Document Type and Number:
Japanese Patent JP2013043002
Kind Code:
A
Abstract:
To provide a method for manufacturing rings of design further strongly reminding customers of a concept that the rings are created (manufactured) from an identical single thing.
The method for manufacturing rings comprises: forming an oval ring 25 from a single circular ring 23; twisting the oval ring 25, for instance three times, near the longitudinal center thereof; creating a male ring portion 31 and a female ring portion 33 at both sides of the twisted portion 35; and cutting off the twisted portion 35 to obtain a ring for male 2 and a ring for female 3.
Inventors:
TAKAHASHI MASAKI
Application Number:
JP2011183652A
Publication Date:
March 04, 2013
Filing Date:
August 25, 2011
Export Citation:
Assignee:
MOKUMEGANEYA CO LTD
International Classes:
A44C27/00; A44C9/00; B21D11/14; B21D53/16; B44C3/02
Attorney, Agent or Firm:
Masahiro Matsushita