Method of making an article of footwear with braided upper

Patent metadata

Field	Value
Publication number	US-11439206-B2
Application number	US-201916716661-A
Country	US
Kind code	B2
Filing date	Dec 17, 2019
Priority date	Dec 17, 2019
Publication date	Sep 13, 2022
Grant date	Sep 13, 2022

Abstract

A method of making an article of footwear with a braided upper is disclosed. The method includes overbraiding a last to form a braided upper and cutting a bottom opening in the braided upper to remove the last. The bottom opening is cut so as to leave a bottom peripheral portion on the bottom side of the braided upper. A midsole is attached directly to the bottom peripheral portion using a bonding agent.

First claim

What is claimed is:

1. A method of making a braided upper, comprising:
passing a last through a braiding machine to form a braided upper that encloses the last, the braided upper including a top opening for receiving a foot;
removing a bottom portion of the braided upper to form a bottom opening, wherein the bottom opening is located on a bottom side of the braided upper opposite the top opening, wherein a portion of the last is exposed through the bottom opening; and
passing the last through the bottom opening to remove the last from an interior cavity of the braided upper.

2. The method according to claim 1 , wherein removing the bottom portion of the braided upper comprises using a hot-knife to cut through the braided upper.

3. The method according to claim 2 , wherein the hot-knife cuts strands of the braided upper and also fuses strands to form a fused peripheral edge along the bottom opening.

4. The method according to claim 1 , wherein the last includes a cutting portion, and wherein removing the bottom portion of the braided upper comprises applying pressure to the bottom portion of the braided upper so that the cutting portion cuts through the braided upper to form the bottom opening.

5. The method according to claim 4 , wherein removing the bottom portion of the braided upper further includes pressing a plate against the braided upper, the plate including a slot to receive the cutting portion of the last.

6. The method according to claim 1 , wherein removing the bottom portion includes pressing a cutting plate against the braided upper, wherein the cutting plate includes a cutting portion, and wherein the cutting portion cuts through the braided upper to form the bottom opening as the cutting plate is pressed against the braided upper.

7. The method according to claim 6 , wherein the last includes a slot for receiving the cutting portion of the cutting plate.

8. A method of making an article of footwear, comprising:
passing a last through a braiding machine to form a braided upper that encloses the last;
removing a bottom portion of the braided upper to form a bottom opening, wherein a portion of the last is exposed through the bottom opening, and wherein the braided upper includes a bottom peripheral portion extending around the bottom opening;
passing the last through the bottom opening to remove the last from an interior cavity of the braided upper;
associating a midsole with the braided upper, the midsole having an upper surface; and
bonding the bottom peripheral portion to the upper surface of the midsole.

9. The method according to claim 8 , wherein removing the bottom portion of the braided upper comprises using a hot-knife to cut through the braided upper.

10. The method according to claim 9 , wherein the hot-knife cuts strands of the braided upper and also fuses strands to form a fused peripheral edge along the bottom opening.

11. The method according to claim 8 , wherein bonding the bottom peripheral portion to the upper surface of the midsole includes applying a bonding agent to the bottom peripheral portion of the braided upper.

12. The method according to claim 8 , wherein bonding the bottom peripheral portion to the upper surface of the midsole includes applying a bonding agent to the upper surface of the midsole.

13. The method according to claim 8 , wherein bonding the bottom peripheral portion to the upper surface of the midsole includes applying a bonding agent to the bottom peripheral portion of the braided upper and applying the bonding agent to the upper surface of the midsole.

14. The method according to claim 8 , wherein the method further includes a step of removing a top portion of the braided upper to form a top opening.

15. The method according to claim 14 , wherein the top opening has a smaller cross-sectional area than the bottom opening.

16. The method according to claim 14 , wherein the top opening is too small for the last to be passed through the top opening.

17. A method of making an upper for an article of footwear, comprising:
passing a last through a braiding machine to form a braided upper that encloses the last;
removing a bottom portion of the braided upper to form a bottom opening, wherein a portion of the last is exposed through the bottom opening, and wherein the braided upper includes a bottom peripheral portion extending around the bottom opening;
passing the last through the bottom opening to remove the last from an interior cavity of the braided upper; and
inserting a reinforcing component through the bottom opening and placing the reinforcing component within an interior cavity of the braided upper.

18. The method according to claim 17 , wherein the method further includes attaching the reinforcing component to an interior surface of the braided upper.

19. The method according to claim 17 , wherein the reinforcing component is disposed in a heel region of the braided upper.

20. The method according to claim 17 , wherein the reinforcing component is disposed in a forefoot region of the braided upper.

Assignees

• Under Armour Inc

Inventors

• Santos Craig

Classifications

• A43D25/06

  Devices for gluing soles on shoe bottoms (A43D25/18, A43D25/20 take precedence) · CPC title

• A43B13/38

  Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process · CPC title

• D10B2501/043

  Footwear · CPC title

• A43B23/042

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

• A43B9/12

  Stuck or cemented footwear · CPC title