Shoe upper and method for producing shoe upper
US11950658B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 25, 2019 |
| Grant date | Apr 9, 2024 |
| Priority date | — |
| Expiry date | Dec 25, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B23/0275
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Provided is a shoe upper that includes an upper body including a region having elasticity, and a film arranged in the region, in which the film has a heat shrinkage rate of 30% or more at least in one direction. Also provided is a method for producing a shoe upper that includes: a preparation step of preparing an upper body including a region having elasticity; an arrangement step of arranging a film in the region of the upper body, in which the film has a heat shrinkable rate of 30% or more at least in one direction; an attachment step of attaching the upper body to a shoe last or foot; and a heating step of, after the arrangement step and the attachment step, heating the upper body with the film arranged thereon to thereby allow the film to shrink to conform to the shoe last or foot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.