Knitted component for an article of footwear with two or more material compositions

Patent metadata

Field	Value
Publication number	US-2018317592-A1
Application number	US-201815969980-A
Country	US
Kind code	A1
Filing date	May 3, 2018
Priority date	May 5, 2017
Publication date	Nov 8, 2018
Grant date	—

Abstract

A knitted component for an article of footwear may have an overfoot portion and an underfoot portion, a first yarn, where the first yarn at least partially forms the overfoot portion and at least partially forms the underfoot portion, and a second yarn, where the second yarn at least partially forms the overfoot portion and at least partially forms the underfoot portion. The first yarn may include a first material composition with a first melting point and the second yarn may include a second material composition with a second melting point. The first melting point may be at least 20 degrees Celsius higher than the second melting point.

First claim

We claim:

1 . A knitted component, comprising:
an overfoot portion and an underfoot portion for forming respective overfoot and underfoot portions of an article of footwear; a first yarn, wherein the first yarn at least partially forms the overfoot portion and at least partially forms the underfoot portion; and a second yarn, wherein the second yarn at least partially forms the overfoot portion and at least partially forms the underfoot portion, wherein the first yarn includes a first material composition, the first material composition including a first melting point, wherein the second yarn includes a second material composition, the second material composition including a second melting point, and wherein the first melting point is at least 20 degrees Celsius higher than the second melting point.

2 . The knitted component of claim 1 , wherein the first melting point is about 195 degrees Celsius or less, and wherein the second melting point is about 140 degrees Celsius or less.

3 . The knitted component of claim 1 , further comprising a third yarn with a third material composition, wherein the third material composition includes a third temperature equal to the lowest of a melting point and decomposition point of the third material composition, and wherein the third temperature is higher than the first melting point.

4 . The knitted component of claim 1 , wherein the underfoot portion is formed by a first underfoot section extending from a first side of the overfoot portion and a second underfoot section extending from a second side of the overfoot portion.

5 . The knitted component of claim 4 , wherein a first end of the first underfoot section is secured to a second end of the second underfoot section at an underfoot seam.

6 . The knitted component of claim 1 , wherein the knitted component includes an exposed area on the underfoot portion.

7 . The knitted component of claim 1 , wherein the exposed area is located between a first sole structure and a second sole structure secured to the underfoot portion of the knitted component, wherein the first sole structure is located on a forefoot area of the underfoot portion and wherein the second sole structure is located on a heel area of the underfoot portion.

8 . The knitted component of claim 7 , wherein the first sole structure is located at a forefoot area of the knitted component and the second sole structure is located at a heel area of the underfoot portion.

9 . The knitted component of claim 7 , wherein the first sole structure and the second sole structure are separated by at least a portion of an exposed area on a midfoot area of the underfoot portion.

10 . A knitted component comprising:
an overfoot portion; a first underfoot section extending from a first side of the overfoot portion, the first underfoot section having a first end; and a second underfoot section extending from a second side of the overfoot portion, the second underfoot section having a second end, wherein the first end is configured to secure to the second end such that the first underfoot section and the second underfoot section form an underfoot portion of an article of footwear, wherein at least one of the first underfoot section and the second underfoot section is formed by both of a first material composition and a second material composition, wherein the first material composition and the second material composition have different melting points.

11 . The knitted component of claim 10 , wherein the first material composition is included with a first yarn, wherein the second material composition is included with a second yarn, and wherein the first yarn and the second yarn are interlooped to form at least a portion of the knitted component.

12 . The knitted component of claim 11 , wherein the first material composition includes a first melting point, wherein the second material composition including a second melting point, and wherein the first melting point is at least 20 degrees Celsius higher than the second melting point.

13 . The knitted component of claim 12 , wherein the first melting point is about 195 degrees Celsius or less, and wherein the second melting point is about 140 degrees Celsius or less.

14 . The knitted component of claim 12 , further comprising a third yarn with a third material composition, wherein the third material composition includes a third temperature equal to the lowest of at least one of a melting point or decomposition point of the third material composition, and wherein the third temperature is higher than the first melting point.

15 . The knitted component of claim 14 , wherein the third temperature is at least 50 degrees Celsius higher than the first melting point.

16 . The knitted component of claim 14 , wherein the third material composition is substantially formed of polyester.

17 . The knitted component of claim 10 ,
wherein the knitted component has a first area and a second area, wherein in the first area includes a first ratio of an amount of the first material composition to an amount of the second material composition per surface area, wherein in the second area includes a second ratio of an amount of the first material composition to an amount of the second material composition per surface area, wherein the first ratio is greater than the second ratio.

18 . A method, comprising:
forming a knitted component for an article of footwear, the knitted component including: an overfoot portion and an underfoot portion; a first yarn, wherein the first yarn at least partially forms the overfoot portion and at least partially forms the underfoot portion; and a second yarn, wherein the second yarn at least partially forms the overfoot portion and at least partially forms the underfoot portion, wherein the first yarn includes a first material composition, the first material composition including a first melting point, wherein the second yarn includes a second material composition, the second material composition including a second melting point, and wherein the first melting point is at least 20 degrees Celsius higher than the second melting point.

19 . The method of claim 18 , wherein the first melting point is about 195 degrees Celsius or less, and wherein the second melting point is about 140 degrees Celsius or less. The method of claim 18 , wherein the knitted component further comprises a third yarn with a third material composition, wherein the third material composition includes a third temperature equal to the lowest of a melting point and decomposition point of the third material composition, and wherein the third temperature is higher than the first melting point.

Assignees

• Nike Inc

Inventors

• Rudolf Stacy M
• Vasilevski Martin

Classifications

• A43B23/042

  Uppers made of one piece (one piece slippers A43B3/106; one piece sandals A43B3/124) · CPC title

• A43B23/0215

  Plastics or artificial leather · CPC title

• A43B13/125

  characterised by the midsole or middle layer · CPC title

• D10B2403/032

  Flat fabric of variable width, e.g. including one or more fashioned panels · CPC title

• A43B13/04

  Plastics, rubber or vulcanised fibre · CPC title