Footwear Having Sensor System

• US 20130213145A1
• Filed: 02/22/2012
• Published: 08/22/2013
• Est. Priority Date: 02/22/2012
• Status: Active Grant

• Current Assignee: Nike, Inc.
• Original Assignee: Nike, Inc.
• Inventors: Owings, Andrew A., Rice, Jordan M., Schrock, Allan M., Walker, Steven H., Hebert, Jeffrey J., Stillman, Martine W., Tempel, Mark A., Weitmann, Dane R.
• Granted Patent: US 8,739,639 B2
• Time in Patent Office: Days
• US Class Current: 73/862.046
• CPC Class Codes: A43B 3/34 with electrical or electronic arrangements
• CPC Class Codes: A61B 2560/04 Constructional details of apparatus
• CPC Class Codes: A61B 2562/0247 Pressure sensors
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/1036 Measuring load distribution, e.g. podologic studies
• CPC Class Codes: A61B 5/112 Gait analysis
• CPC Class Codes: A61B 5/6807 Footwear
• CPC Class Codes: G01L 1/205 using distributed sensing elements
• CPC Class Codes: G01L 1/225 Measuring circuits therefor
• CPC Class Codes: G01L 1/2287 constructional details of the strain gauges adjustable resistors H01C10/00

Abstract

A sensor system is adapted for use with an article of footwear and includes an insert member including a first layer and a second layer, a port connected to the insert and configured for communication with an electronic module, a plurality of force and/or pressure sensors on the insert member, and a plurality of leads connecting the sensors to the port.

Claims

1. A sensor system comprising:

an insert member configured to be inserted into a foot-receiving chamber of an article of footwear;

a port connected to the insert and configured for communication with an electronic module;

a plurality of sensors formed on the insert member, each sensor configured for detecting pressure applied to the sensor;

a plurality of leads located on the insert and connecting the sensors to the port, the leads having ends that are consolidated at the port to form an interface; and

a housing connected to the insert member and defining a well configured to receive the electronic module therein,

wherein the insert member comprises an extension extending into the well and consolidating the ends of the leads to form the interface, the extension having a strip of reinforcing material extending across the ends of the leads, and

wherein the extension has a bend area where the extension bends downwardly at a peripheral edge of the housing and a depending portion that extends downwardly from the bend area into the well, wherein the interface located on the depending portion within the well, and wherein the strip extends transversely across the bend area.

2. The system of claim 1, wherein the housing comprises a sidewall defining the well and a lip extending outward from a top of the side wall, wherein the depending portion of the extension extends downwardly adjacent the sidewall of the housing.

3. The system of claim 2, further comprising an interface assembly comprising a base member and a plurality of electrical connectors supported by the base member, wherein at least a portion of the depending portion is received in the base member and the ends of the leads engage the electrical connectors to form the interface.

4. The system of claim 1, wherein the bend area forms a substantially perpendicular bend.

5. The system of claim 1, wherein the reinforcing material comprises an elongated strip that extends across the bend area and generally parallel to the bend.

6. The system of claim 1, wherein the reinforcing material is a strip of a dielectric material, the insert further comprising a patch of the dielectric material located away from the strip and separating two electrically conductive members to prevent electrical contact between the conductive members.

7. The system of claim 1, wherein the insert comprises a first layer, a second layer, and a spacer layer positioned between the first and second layers, the system further comprising:

a pathway providing electrical communication between the first layer and the second layer,

wherein the sensors each comprise a first contact located on the first layer and a second contact located on the second layer, the second contact being generally aligned with the first contact, wherein the sensors are each configured such that pressure on the insert causes increased engagement between the first and second contacts to change a resistance of the sensor,

wherein the spacer layer comprises a plurality of holes, each hole aligned with one of the sensors, wherein the holes are configured to permit engagement between the first and second contacts through the spacer layer,

wherein the leads connect the first contacts, the second contacts, the pathway, and the port, and

wherein the second layer is configured to be placed in confronting relation to a sole structure of an article of footwear, and the extension is connected to the second layer.

8. The system of claim 7, wherein the first and second layers are formed of a polymeric film material, and wherein the extension comprises the polymeric film material and is integral with the second layer.

9. The system of claim 1, wherein the reinforcing material has a greater stiffness than a material forming the leads.

10. The system of claim 9, wherein the first and second layers are formed of a polymeric film material, and wherein the reinforcing material has a greater stiffness than the polymeric film material.

11. A sensor system comprising:

an insert member configured to be inserted into a foot-receiving chamber of an article of footwear, the insert member comprising a first layer, a second layer, and a spacer layer located between the first and second layers;

a port connected to the insert and configured for communication with an electronic module;

a sensor formed on the insert member, the sensor comprising a first contact located on the first layer and a second contact located on the second layer, the second contact being generally aligned with the first contact, wherein the second sensor is configured such that pressure on the insert causes increased engagement between the first and second contacts to change a resistance of the sensor, wherein the spacer layer includes a hole aligned with the sensor to permit at least partial engagement between the first and second contacts of the sensor through the spacer layer;

one or more leads located on the first layer and the second layer, the leads connecting the first and second contacts to the port;

a channel defined by the spacer layer and extending from the hole to permit air flow away from the sensor between the first and second layers; and

a patch of dielectric material connected to one of the first and second layers and extending across the channel, the patch of dielectric material positioned between the first and second layers and resisting shorting of one or more conductive members between the first and second layers through the channel.

12. The system of claim 11, wherein the channel extends from the hole to a vent, wherein the channel permits air to flow between the first and second layers from the sensor to an exterior of the insert member, through the vent.

13. The system of claim 11, wherein the one or more conductive members comprise a first lead that crosses the channel, wherein the patch of dielectric material extends across the channel at the first lead and is positioned between the first and second layers, the patch of dielectric material resisting shorting of the first lead between the first and second layers through the channel.

14. The system of claim 13, wherein the one or more conductive members further comprise a second lead that crosses the channel concurrent with the first lead, wherein the patch of dielectric material is positioned between the first and second leads and resists shorting between the first and second leads through the channel.

15. The system of claim 13, further comprising:

a second sensor formed on the insert member, the second sensor comprising a third contact located on the first layer and a fourth contact located on the second layer, the fourth contact being generally aligned with the third contact, wherein the second sensor is configured such that pressure on the insert causes increased engagement between the third and fourth contacts to change a resistance of the second sensor, wherein the spacer layer includes a second hole aligned with the sensor to permit at least partial engagement between the first and second contacts of the second sensor through the spacer layer, and wherein the one or more leads connect the third and fourth contacts to the port;

a second channel defined by the spacer layer and extending from the second hole to permit air flow away from the second sensor between the first and second layers; and

a second patch of dielectric material connected to one of the first and second layers and extending across the channel, the second patch of dielectric material positioned between the first and second layers and resisting shorting of one or more additional conductive members between the first and second layers through the channel.

16. The system of claim 13, wherein the first and second layers are formed of a polymeric film material, and wherein the dielectric material has a greater stiffness than the polymeric film material.

17. A sensor system comprising:

an insert member configured to be inserted into a foot-receiving chamber of an article of footwear below a foot of a user, the insert having a forefoot portion configured to be positioned under a forefoot of the user'"'"'s foot, a midfoot portion configured to be positioned under a midfoot of the user'"'"'s foot, and a heel portion extending rearwardly from the midfoot portion and configured to be positioned under the user'"'"'s heel;

a port connected to the insert and configured for communication with an electronic module;

a plurality of sensors formed on the insert member, each sensor configured for detecting pressure applied to the sensor by the user'"'"'s foot, wherein the plurality of sensors includes first and second sensors located on the forefoot portion of the insert and a third sensor located on the heel portion of the insert; and

a housing connected to the insert and configured to hold the electronic module, the insert having a hole in the midfoot portion configured to receive the housing,

wherein the insert includes a first cut-out on a medial edge of the insert member and a second cut-out on a lateral edge of the insert member, proximate a juncture between the forefoot portion and the midfoot portion, wherein a width of the insert defined between the medial and lateral edges is larger in the midfoot portion than the width measured between the first and second cut-outs and the width measured at the heel portion, and

wherein the hole makes up less than half the width of the midfoot portion.

18. The system of claim 17, wherein the insert member further comprises two strips in the midfoot portion connecting the forefoot portion to the heel portion, wherein the hole is located between the two strips and separates the two strips, and wherein each of the strips has a width of at least 8 mm.

19. The system of claim 17, wherein the insert member further comprises two strips in the midfoot portion connecting the forefoot portion to the heel portion, wherein the hole is located between the two strips and separates the two strips, and wherein each of the strips has a width of from 3-5% of an overall length of the insert member measured from a forefoot-most end to a heel-most end of the insert member.

20. The system of claim 17, wherein the insert member further comprises:

a front edge extending along second, third, fourth, and fifth metatarsal areas of the insert member;

a first phalangeal peninsula extending from the front edge and configured to be positioned under a first phalange of the user'"'"'s foot, the first phalangeal peninsula having a base connected to a first metatarsal area of the insert member and a free end extending forward along the medial edge; and

a third cut-out extending inward from the front edge of the insert member, between the first phalangeal peninsula and the lateral edge of the insert member.

21. The system of claim 20, wherein the first sensor is located on the first phalangeal peninsula.

22. The system of claim 21, wherein the second sensor is located on the first metatarsal area at the base of the first phalangeal peninsula, further comprising a fourth sensor located on the fifth metatarsal area.

23. The system of claim 17, wherein the heel portion increases in width from the midfoot portion toward a heel end of the insert member.

24. The system of claim 17, wherein the first and second cut-outs have a smooth and concave inward curvature.

25. The system of claim 24, wherein the first and second cut-outs are at least partially defined by a concave curvilinear edge defining an arc of at least 120°

.

26. The system of claim 24, wherein at least one of the first and second cut-outs is at least partially defined by a concave curvilinear edge defining an arc of at least 180°

.

27. A sensor system comprising:

an insert member configured to be inserted into a foot-receiving chamber of an article of footwear below a foot of a user, the insert having a forefoot portion configured to be positioned under a forefoot of the user'"'"'s foot, a midfoot portion configured to be positioned under a midfoot of the user'"'"'s foot, and a heel portion extending rearwardly from the midfoot portion and configured to be positioned under the user'"'"'s heel;

a port connected to the insert and configured for communication with an electronic module;

a plurality of sensors formed on the insert member, each sensor configured for detecting pressure applied to the sensor by the user'"'"'s foot, wherein the plurality of sensors includes first and second sensors located on the forefoot portion of the insert and a third sensor located on the heel portion of the insert; and

a housing connected to the insert and configured to hold the electronic module, the insert having a hole in the midfoot portion configured to receive the housing,

wherein the insert includes three cut-outs, each of the cut-outs being at least partially defined by a concave curvilinear edge defining an arc of at least 120°

.

28. The system of claim 27, wherein the arc defined by the concave curvilinear edge of at least one of the three cut-outs is at least 180°

.

29. The system of claim 27, wherein a first of the cut-outs is located on a medial edge of the insert member proximate a juncture between the forefoot portion and the midfoot portion, and a second of the cut-outs is located on a lateral edge of the insert member, proximate the juncture between the forefoot portion and the midfoot portion.

30. The system of claim 29, wherein a third of the cut-outs is located on a front edge of the insert member.

31. The system of claim 30, wherein the front edge extends along second, third, fourth, and fifth metatarsal areas of the insert member, and wherein the insert member further comprises:

a first phalangeal peninsula extending from the front edge and configured to be positioned under a first phalange of the user'"'"'s foot, the first phalangeal peninsula having a base connected to a first metatarsal area of the insert member and a free end extending forward along the medial edge, wherein the third cut-out extends inward from the front edge of the insert member, between the first phalangeal peninsula and the lateral edge of the insert member.

32. The system of claim 31, wherein the first sensor is located on the first phalangeal peninsula, and the second sensor is located on the first metatarsal area at the base of the first phalangeal peninsula, further comprising a fourth sensor located on the fifth metatarsal area.