Method of customizing a boot

Patent metadata

Field	Value
Publication number	US-11596207-B2
Application number	US-202016920468-A
Country	US
Kind code	B2
Filing date	Jul 3, 2020
Priority date	Jul 3, 2019
Publication date	Mar 7, 2023
Grant date	Mar 7, 2023

Abstract

A method of customizing a boot, for example a skate boot, includes generating a tridimensional digital representation of a wearer's foot using numerical data obtained by scanning the wearer's foot. A boot with a foot size corresponding generally to a foot length of the wearer's foot is selected. A core is also selected. The core, a medial side insert and a lateral side insert are inserted into an internal space of the boot such that the medial side insert and the lateral side insert straddle the core. The medial side insert and the lateral side insert are manufactured based on the tridimensional shape of the foot. At least a portion of the boot is then heated such that the boot is thermoformed to follow surfaces of the medial and lateral side inserts. The core, the medial side insert and the lateral side insert are then removed from the boot.

First claim

What is claimed is:

1. A method of customizing a boot, comprising:
generating a tridimensional digital representation of a wearer's foot using numerical data corresponding to a tridimensional shape of the wearer's foot obtained by scanning the wearer's foot, and processing the numerical data to obtain the tridimensional digital representation of the wearer's foot;
selecting the boot with a foot size corresponding generally to a foot length of the wearer's foot, the boot being at least partially made of a thermoformable material, the boot including an inner surface defining an internal space for receiving the wearer's foot;
selecting a core having a foot size generally corresponding to the foot size of the boot;
obtaining a medical side insert having a medial external surface and a lateral side insert having a lateral external surface, the medial side insert and the lateral side insert manufactured, in absence of the core, based on the tridimensional shape of the foot;
inserting the core, the medial side insert and the lateral side insert into the internal space of the boot such that the medial side insert and the lateral side insert straddle the core, and the medial external surface and the lateral external surface are adjacent the inner surface of the boot;
heating at least a portion of the boot such that the inner surface of the boot is thermoformed to follow the medial external surface and the lateral external surface, the thermoforming defining medial and lateral tridimensional shapes in the inner surface of the boot conforming to the tridimensional shape of the foot; and
removing the core, the medial side insert and the lateral side insert from the boot.

2. The method according to claim 1 , further comprising obtaining a rear insert having a rear external surface, the rear insert manufactured, in absence of the core, based on a rear portion of the tridimensional shape of the foot, and inserting the rear insert into the internal space of the boot adjacent a rear surface of the core such that the rear external surface is adjacent a rear internal surface of the boot, wherein the rear internal surface of the boot is thermoformable to conform to the rear external surface of the rear insert.

3. The method according to claim 2 , wherein the rear insert is inserted into the internal space of the boot before or after inserting the medial side insert and the lateral side insert into the internal space of the boot.

4. The method according to claim 3 , wherein the medial side insert, the lateral side insert and the rear insert are inserted into the internal space of the boot before inserting the core into the internal space of the boot.

5. The method according to claim 1 , further comprising pre-heating the boot to pre-soften the thermoformable material before inserting the medial side insert and the lateral side insert into the internal space of the boot.

6. The method according to claim 5 , wherein pre-heating the boot includes placing the boot in an oven at a temperature of 200° F. to 300° F. for 2 minutes to 5 minutes.

7. The method according to claim 1 , wherein heating the boot includes placing the boot in an oven at a temperature of 200° F. to 300° F. for 2 minutes to 4 minutes.

8. The method according to claim 1 , wherein heating the boot further includes placing the boot on a platform and enclosing the boot in a flexible envelope such that the boot is covered by the envelope and an air-tight seal is obtained between the envelope and the platform, creating a vacuum in the envelope for applying pressure to the boot.

9. The method according to claim 1 , wherein the wearer's foot is scanned in a physical store and the boot is heated in the physical store.

10. The method according to claim 1 , wherein heating the boot further includes applying a pressure of 5 psi to 15 psi for 5 minutes to 10 minutes to the boot.

11. The method according to claim 1 , further comprising pre-identifying regions of the wearer's foot requiring customization.

12. The method according to claim 11 , wherein scanning the wearer's foot further includes scanning only the pre-identified regions of the wearer's foot requiring customization.

13. The method according to claim 1 , wherein generating the tridimensional digital representation of the wearer's foot further includes generating the tridimensional digital representation of the wearer's foot in a wearing condition, wherein the medial side insert and the lateral side insert are manufactured based on the tridimensional shape of the foot in the wearing condition, and wherein heating the boot further includes the thermoforming defining medial and lateral tridimensional shapes in the inner surface of the boot conforming to the tridimensional shape of the foot in the wearing condition.

14. A method of customizing a boot, the boot being thermoformable, the method comprising:
providing a re-usable core dimensioned to generally correspond to a foot size of the boot, the re-usable core selected from a group of re-usable cores each corresponding to a different range of standardized foot sizes, a sacrificial medial side insert manufactured based on a tridimensional shape of a wearer's foot, the sacrificial medial side insert having a medial internal surface and a medial external surface generally conforming to a medial side shape of the wearer's foot, and a sacrificial lateral side insert manufactured based on the tridimensional shape of the wearer's foot, the sacrificial lateral side insert having a lateral internal surface and a lateral external surface generally conforming to a lateral side shape of the wearer's foot;
sequentially inserting, into the boot: one or both of the sacrificial medial side insert and the sacrficial lateral side insert; and, subsequently, the re-usable core such that the medial internal surface and the lateral internal surface abut outer surfaces of the re-usable core;
heating at least a portion of the boot such that an inner surface of the boot is thermoformed to follow the medial external surface and the lateral external surface; and
removing the core, the sacrificial medial side insert and the sacrificial lateral side insert from the boot.

15. The method according to claim 14 , further comprising providing a sacrificial rear insert having a rear external surface, the rear insert is manufactured based on a rear portion of the tridimensional shape of the foot, the method further comprising inserting the sacrificial rear insert into the boot such that the rear external surface is adjacent a rear internal surface of the boot.

16. The method according to claim 14 , further comprising pre-heating the boot before inserting the sacrificial medial side insert and the sacrificial lateral side insert into the boot.

17. The method according to claim 16 , wherein pre-heating the boot includes placing the boot in an oven at a temperature of 200° F. to 300° F. for 2 minutes to 5 minutes.

18. The method according to claim 14 , wherein heating the boot includes placing the boot in an oven at a temperature of 200° F. to 300° F. for 2 minutes to 4 minutes.

19. The method according to claim 14 , wherein heating the boot further includes applying a pressure of 5 psi to 15 psi for 5 minutes to 10 minutes to the boot.

20. The method according to claim 14 , wherein the sacrificial medial side insert and the sacrificial lateral side are reusable to customize another said boot of the wearer.

Assignees

• Sport Maska Inc

Inventors

• Lapierre Philippe
• Cormack Andrew

Classifications

• A43D3/1408

  Devices for heating or drying shoes · CPC title

• A63C1/42

  Manufacture of skates · CPC title

• A43D11/12 Primary

  Machines for forming the toe part or heel part of shoes, with or without use of heat · CPC title

• A43B5/0427

  characterised by type or construction details · CPC title

• A43D1/025

  comprising optical means, e.g. mirrors, photo-electric cells, for measuring or inspecting feet · CPC title