Last system for articles with braided components

Patent metadata

Field	Value
Publication number	US-11540596-B2
Application number	US-202117158910-A
Country	US
Kind code	B2
Filing date	Jan 26, 2021
Priority date	Dec 10, 2014
Publication date	Jan 3, 2023
Grant date	Jan 3, 2023

Abstract

A last system and a method of making the last system are disclosed. The last system includes a last member and an exterior layer. The exterior layer becomes deformable when heated above a characteristic temperature. The method can include forming a braided footwear component on the last system. The exterior layer may be joined with the braided footwear component by heating the last system above the characteristic temperature.

First claim

The invention claimed is:

1. An upper for an article of footwear comprising:
a composite layer forming at least a portion of the upper, the composite layer comprising:
a matrix comprising a heat deformable material; and
a plurality of braided strands thermally fused with the heat deformable material,

wherein the composite layer comprises an interior surface and an exterior surface opposite the interior surface, at least a portion of the plurality of braided strands being exposed on each of the interior surface and the exterior surface.

2. The upper according to claim 1 , wherein a first portion of the upper has a first thickness and a second portion of the upper has a second thickness.

3. The upper according to claim 2 , wherein the first thickness is greater than the second thickness.

4. The upper according to claim 2 , wherein the first portion is located in a toe region of the upper.

5. The upper according to claim 2 , wherein the first portion is located in a heel region of the upper.

6. The upper according to claim 2 , wherein the first portion is located in an eyestay region of the upper.

7. The upper according to claim 2 , wherein the first portion is located in a sole region of the upper.

8. The upper according to claim 2 , wherein the second portion is located in a medial side region of the upper.

9. The upper according to claim 1 , wherein the heat deformable material is a thermoplastic.

10. The upper according to claim 1 , wherein the composite layer has a thickness in a range of 1-10 millimeters.

11. The upper according to claim 1 , wherein the composite layer has a constant thickness.

12. An upper for an article of footwear comprising:
a composite layer forming at least a portion of the upper, the composite layer comprising:
a matrix comprising a heat deformable material; and
a plurality of braided strands thermally fused with the heat deformable material,
wherein the composite layer comprises an interior surface and an exterior surface opposite the interior surface, the interior surface comprising the matrix, and wherein the plurality of braided strands are partially, but not fully, embedded within the matrix.

13. The upper according to claim 12 , wherein a portion of the matrix separates the plurality of braided strands from the interior surface of the composite layer.

14. The upper according to claim 13 , wherein a thickness of the portion of the matrix that separates the plurality of braided strands from the interior surface is less than a thickness of the plurality of braided strands.

15. The upper according to claim 12 , wherein the interior surface further comprises an interior surface of the plurality of braided strands.

16. An upper for an article of footwear comprising:
a composite layer forming at least a portion of the upper, the composite layer comprising:
a matrix comprising a heat deformable material; and
a plurality of braided strands thermally fused with the heat deformable material,

wherein at least a portion of the plurality of braided strands separates an interior surface of the matrix from an interior surface of the composite layer.

17. The upper according to claim 16 , wherein the composite layer comprises an exterior surface opposite the interior surface, wherein the exterior surface of the composite layer consists of the matrix.

18. The upper according to claim 16 , wherein a first portion of the upper has a first thickness and a second portion of the upper has a second thickness.

19. The upper according to claim 18 , wherein the first portion of the upper is characterized by a first rigidity and the second portion is characterized by a second rigidity.

20. The upper according to claim 19 , wherein the first rigidity is greater than the second rigidity.

Assignees

• Nike Inc

Inventors

• Bruce Robert M
• Lee Eun Kyung
• Sills Craig K

Classifications

• D10B2501/043

  Footwear · CPC title

• A43D3/02 Primary

  Lasts for making or repairing shoes (making of wooden lasts B27M3/20) · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• A43B23/0255

  assembled by gluing or thermo bonding · CPC title

• A43B23/042

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