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Article of footwear incorporating a knitted component having floated portions / Nike, Inc.




Article of footwear incorporating a knitted component having floated portions


An article of footwear includes an upper incorporating a knitted component formed of unitary knit construction. The knitted component includes portions having extended floated portions to distribute forces acting on the knitted component and resist stretching of the knitted component when the article of footwear is worn during a sport or athletic activity.



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USPTO Applicaton #: #20160302527
Inventors: Adrian Meir


The Patent Description & Claims data below is from USPTO Patent Application 20160302527, Article of footwear incorporating a knitted component having floated portions.


BACKGROUND

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Conventional articles of footwear generally include two primary elements, an upper and a sole structure. The upper and the sole structure, at least in part, define a foot-receiving chamber that may be accessed by a user's foot through a foot-receiving opening.

The upper is secured to the sole structure and forms a void on the interior of the footwear for receiving a foot in a comfortable and secure manner. The upper member may secure the foot with respect to the sole member. The upper may extend around the ankle, over the instep and toe areas of the foot. The upper may also extend along the medial and lateral sides of the foot as well as the heel of the foot. The upper may be configured to protect the foot and provide ventilation, thereby cooling the foot. Further, the upper may include additional material to provide extra support in certain areas.

The sole structure is secured to a lower area of the upper, thereby positioned between the upper and the ground. The sole structure may include a midsole and an outsole. The midsole often includes a polymer foam material that attenuates ground reaction forces to lessen stresses upon the foot and leg during walking, running, and other ambulatory activities. Additionally, the midsole may include fluid-filled chamber, plates, moderators, or other elements that further attenuate forces, enhance stability, or influence the motions of the foot. The outsole is secured to a lower surface of the midsole and provides a ground-engaging portion of the sole structure formed from a durable and wear-resistant material, such as rubber. The sole structure may also include a sockliner positioned within the void and proximal a lower surface of the foot to enhance footwear comfort.

A variety of material elements (e.g. textiles, polymer foam, polymer sheets, leather, synthetic leather) are conventionally utilized in manufacturing the upper. In athletic footwear, for example, the upper may have multiple layers that each includes a variety of joined material elements. As examples, the material elements may be selected to impart stretch-resistance, wear resistance, flexibility, air-permeability, compressibility, comfort, and moisture-wicking to different areas of the upper. In order to impart the different properties to different areas of the upper, material elements are often cut to desired shapes and then joined together, usually with stitching or adhesive bonding. Moreover, the material elements are often joined in layered configuration to impart multiple properties to the same areas.

As the number and type of material elements incorporated into the upper increases, the time and expense associated with transporting, stocking, cutting, and joining the material elements may also increase. Waste material from cutting and stitching processes also accumulates to a greater degree as the number and type of material elements incorporated into the upper increases. Moreover, uppers with a greater number of material elements may be more difficult to recycle than uppers formed from fewer types and number of material elements. Further, multiple pieces that are stitched together may cause a greater concentration of forces in certain areas. The stitch junctions may transfer stress at an uneven rate relative to other parts of the article of footwear which may cause failure or discomfort. Additional material and stitch joints may lead to discomfort when worn. By decreasing the number of material elements utilized in the upper, therefore, waste may be decreased while increasing the manufacturing efficiency, the comfort, performance, and the recyclability of the upper.

SUMMARY

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In one aspect, an article of footwear includes an upper and a sole structure secured to the upper. The upper includes a knitted component. The knitted component includes a first course and a second course. The first course extends from a first area of the knitted component to a second area of the knitted component along a first knitting direction. The first course includes a first loop and a second loop. The first loop and the second loop are separated by a plurality of loops. The second course extends from the first area to the second area. The second course includes a first tuck stitch and a second tuck stitch. The first tuck stitch interacts with the first loop. The second tuck stitch interacts with the second loop. The second course includes a floated portion that extends from the first tuck stitch to the second tuck stitch. The floated portion extends over the plurality of loops of the first course. And, the second course is configured to resist stretch in at least a first portion of the upper.

In another aspect, an article of footwear includes an upper and a sole structure secured to the upper. The upper incorporates a knitted component. The knitted component includes a stretch resistant area formed of a plurality of courses. At least a first course incorporates a floated portion. A first loop being located at a first end of the floated portion, a second loop being located at a second end of the floated portion.

In another aspect, a method of making an article of footwear having an upper and a sole structure secured to the upper is disclosed. The upper incorporates a knitted component. The knitted component is formed by knitting a first course and a second course. The first course extending from a first area of the knitted component to a second area of the knitted component along a first knitting direction. The first course including a first loop located in the first area and a second loop located in the second area. The first loop and the second loop being separated by a plurality of loops. The second course extending from the first area to the second area. The second course including a first tuck stitch and a second tuck stitch. The first tuck stitch interacting with the first loop. The second tuck stitch interacting with the second loop. The second course including a floated portion extending from the first tuck stitch to the second tuck stitch. The floated portion extending over the plurality of loops of the first course. And, the second course being configured to resist stretch in at least a first area of the upper.

Other systems, methods, features and advantages of the embodiments will be, or will become, apparent to one of ordinary skill in the art upon examination of the following figures and detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description and this summary, be within the scope of the embodiments, and be protected by the following claims.

BRIEF DESCRIPTION OF THE DRAWINGS

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The invention can be better understood with reference to the following drawings and description. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention. Moreover, in the figures, like reference numerals designate corresponding parts throughout the different views.

FIG. 1 is a side view of an exemplary embodiment of an article of footwear;

FIG. 2 is a side view of an exemplary embodiment of an article of footwear including varying knit structures;

FIG. 3 is a schematic view of an embodiment of an upper incorporating a large floated portion and tuck stitches;

FIG. 4 is a schematic view of an embodiment of an upper incorporating tuck stitches and large floated portions;

FIG. 5 is a schematic view of an alternate embodiment of an upper incorporating tuck stitches and large floated portions;

FIG. 6 is a schematic view of an alternate embodiment of an upper incorporating tuck stitches and large floated portions;

FIG. 7 is a schematic view of an embodiment of an article of footwear incorporating large floated portions;

FIG. 8 is a schematic view of an alternate embodiment of an article of footwear incorporating large floated portions;

FIG. 9 is a schematic view of an alternate embodiment of an article of footwear incorporating large floated portions;

FIG. 10 is a schematic view of an embodiment of a knitted component incorporating large floated portions;

FIG. 11 is a schematic view of an alternate embodiment of a knitted component incorporating large floated portions;

FIG. 12 is a schematic view of an alternate embodiment of a knitted component incorporating large floated portions;

FIG. 13 is a view of an embodiment of a course incorporating a tuck stitch and large floated portions;

FIG. 14 is a schematic view of the course from FIG. 7 subjected to a tensile force;

FIG. 15 is a schematic view of an embodiment of a course incorporating multiple loops;

FIG. 16 is a schematic view of the course from FIG. 9 subjected to a tensile force;

FIG. 17 is a schematic view of an alternate embodiment of an article of footwear incorporating multiple layers;

FIG. 18 is a top view of an embodiment of an article of footwear incorporating a large floated portion;

FIG. 19 is a representational view of an athlete standing with an enlarged cross-sectional view of a forefoot portion of an embodiment of an article;

FIG. 20 depicts an athlete making a lateral maneuver with an enlarged cross-regional view of a forefoot portion of an embodiment of an article of footwear;

FIG. 21 is a representational view of an athlete making a lateral maneuver with an enlarged cross-regional view of a forefoot portion of an embodiment of an article of footwear that incorporates tuck stitches and large floated portions;

FIG. 22 illustrates a force acting on an embodiment of a knitted component that incorporates tuck stitches and large floated portions;




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stats Patent Info
Application #
US 20160302527 A1
Publish Date
10/20/2016
Document #
15094547
File Date
04/08/2016
USPTO Class
Other USPTO Classes
International Class
/
Drawings
33


Footwear

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Nike, Inc.


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20161020|20160302527|article of footwear incorporating a knitted component having floated portions|An article of footwear includes an upper incorporating a knitted component formed of unitary knit construction. The knitted component includes portions having extended floated portions to distribute forces acting on the knitted component and resist stretching of the knitted component when the article of footwear is worn during a sport |Nike-Inc
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