Charging System for an Article of Footwear

• US 20090273311A1
• Filed: 02/11/2009
• Published: 11/05/2009
• Est. Priority Date: 05/02/2008
• Status: Active Grant

• Current Assignee: Nike, Inc.
• Original Assignee: Nike, Inc.
• Inventors: Hatfield, Tinker L., Friton, Michael R., Beers, Tiffany A.
• Granted Patent: US 8,058,837 B2
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: A43B 1/0036 with fluorescent or phosphorescent parts
• CPC Class Codes: A43B 1/0054 provided with magnets, magnetic parts or magnetic substances
• CPC Class Codes: A43B 11/00 Footwear with arrangements to facilitate putting-on or removing, e.g. with straps
• CPC Class Codes: A43B 23/24 Ornamental buckles; Other ornaments for shoes without fastening function
• CPC Class Codes: A43B 3/0078 provided with logos, letters, signatures or the like decoration A43B23/24 takes precedence
• CPC Class Codes: A43B 3/34 with electrical or electronic arrangements
• CPC Class Codes: A43B 3/35 with electric heating arrangements
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H02J 7/00302 Overcharge protection
• CPC Class Codes: H02J 7/02 for charging batteries from ac mains by converters

Abstract

An article of footwear and a footwear housing is disclosed. The footwear housing includes a charging station that can be used to charge a battery in the footwear housing.

Claims

1. A footwear housing for an article of footwear, comprising:

an interior portion that is configured to receive the article of footwear;

a charging ECU associated with the interior portion and configured to receive power from an external power source;

an external inductive loop in communication with the charging ECU and;

wherein the external inductive loop is associated with an internal inductive loop of the article of footwear.

2. The footwear housing according to claim 1, wherein the interior portion includes a locating feature configured to facilitate alignment of the article of footwear on a floor portion of the interior portion.

3. The footwear housing according to claim 2, wherein the locating feature facilitates alignment of the external inductive loop with the internal inductive loop of the article of footwear in a manner that facilitates inductive coupling of the article of footwear with the footwear housing.

4. The footwear housing according to claim 3, wherein the external inductive loop is disposed below the floor portion.

5. The footwear housing according to claim 4, wherein the charging ECU is disposed below the floor portion.

6. The footwear housing according to claim 4, wherein the external inductive loop is spaced apart from a lower surface of the article of footwear.

7. The charging system according to claim 6, wherein the footwear housing includes a first panel portion and a second panel portion that provide access to the interior portion.

8. The charging system according to claim 7, wherein the first panel portion and the second panel portion can be closed.

9. The charging system according to claim 8, wherein the footwear housing can be used to transport the article of footwear.

10. A charging system for an article of footwear, comprising:

a rechargeable power source disposed inside the article of footwear, the rechargeable power source being configured to power a lighting system;

a footwear housing configured to receive the article of footwear, the footwear housing being associated with an external power source;

an internal inductive loop disposed inside the article of footwear, the internal inductive loop configured to transfer power to the rechargeable power source;

an external inductive loop disposed inside the footwear housing, the external inductive loop configured to receive power from the external power source; and

wherein the internal inductive loop and the external inductive loop are inductively coupled when the footwear is disposed inside the footwear housing.

11. The charging system according to claim 10, wherein the external inductive loop is configured to generate an alternating magnetic field.

12. The charging system according to claim 11, wherein the alternating magnetic field generated by the external inductive loop creates an alternating current in the internal inductive loop.

13. The charging system according to claim 12, wherein the current generated in the internal inductive loop is used to charge the rechargeable power source in the article of footwear.

14. The charging system according to claim 13, wherein the rechargeable power source is charged whenever the article of footwear is disposed inside the footwear housing in a manner that aligns the internal inductive loop with the external inductive loop.

15. The charging system according to claim 14, wherein the footwear housing can be used to recharge a pair of footwear simultaneously using a pair of external inductive loops that may be coupled with corresponding internal inductive loops in the pair of footwear.

16. The charging system according to claim 15, wherein the rechargeable power source can be used to power an automatic fastening system.

17. A method of charging an article of footwear, comprising the steps of:

connecting a footwear housing to an external power source, the footwear housing comprising a charging station with an external inductive loop;

associating the article of footwear including an internal inductive loop with the footwear housing, the internal inductive loop being configured to transfer power to a rechargeable power source within the article of footwear;

aligning the article of footwear within the footwear housing in a manner that inductively couples the internal inductive loop with the external inductive loop; and

thereby charging the rechargeable power source.

18. The method according to claim 17, wherein the rechargeable power source is configured to provide power to a lighting system of the article of footwear.

19. The method according to claim 17, wherein the step of aligning the article of footwear within the footwear housing includes a step of using at least one locating feature disposed within the footwear housing.

20. The method according to claim 17, wherein the step of associating the footwear housing with an external power source comprises a step of plugging in a cord to a wall socket.