US 12,114,729 B2
Upper, shoe, and method of producing upper
Yuya Kozuka, Kobe (JP); Shinsaku Wakasugi, Kobe (JP); Misao Nakagawa, Kobe (JP); Norihiko Taniguchi, Kobe (JP); Genki Hatano, Kobe (JP); Shingo Takashima, Kobe (JP); Satoru Abe, Kobe (JP); and Kenta Takahama, Kobe (JP)
Assigned to ASICS CORPORATION, Kobe (JP)
Filed by ASICS CORPORATION, Kobe (JP)
Filed on Mar. 22, 2022, as Appl. No. 17/701,287.
Claims priority of application No. 2021-057721 (JP), filed on Mar. 30, 2021.
Prior Publication US 2022/0312895 A1, Oct. 6, 2022
Int. Cl. A43B 23/02 (2006.01); A43B 23/04 (2006.01)
CPC A43B 23/0245 (2013.01) [A43B 23/0205 (2013.01); A43B 23/0265 (2013.01); A43B 23/042 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A production method of producing an upper to be used for a shoe, the production method comprising:
two-dimensionally developing three-dimensional shape data of a shoe last and creating a cutting pattern of a main body portion of the upper which is seamless and is in a shape having an inner periphery on an inner side of an outer periphery;
cutting a sheet into the main body portion based on the cutting pattern; and
covering the shoe last with the cut-out main body portion and at least one of expanding or shrinking the main body portion in conformity with a shape of the shoe last, wherein
the creating a cutting pattern includes
generating a two-dimensional pattern of the main body portion, such that a portion corresponding to a topline of the shoe last is set as an inner periphery of the main body portion and a portion corresponding to a surface of the shoe last is virtually cut into a plurality of radially arranged strips,
adjusting a length of each gap provided between adjacent strips in the two-dimensional pattern such that at least one of an expanded or shrunk shape conforms to the shape of the shoe last, and
setting the outer periphery of the two-dimensional pattern including each adjusted gap as the outer periphery of the cutting pattern.