Method of manufacturing a knitted component

• US 9,060,570 B2
• Filed: 03/15/2011
• Issued: 06/23/2015
• Est. Priority Date: 03/15/2011
• Status: Active Grant

• Current Assignee: Fabdesigns, Inc., Nike, Inc.
• Original Assignee: Nike, Inc.
• Inventors: Huffa, Bruce, Dua, Bhupesh
• Primary Examiner(s): Worrell, Danny
• Application Number:
  US13/048,540
• Publication Number:
  US 20120234052A1
• Time in Patent Office: 1,561 Days
• Field of Search: 66/9.R, 66/61, 661/26.R, 661/27, 661/29
• US Class Current: 1/1
• CPC Class Codes: A43B 1/04 braided, knotted, knitted or crocheted
• CPC Class Codes: A43B 23/0215 Plastics or artificial leather
• CPC Class Codes: A43B 23/0225 Composite materials, e.g. material with a matrix
• CPC Class Codes: A43B 23/0255 assembled by gluing or thermo bonding
• CPC Class Codes: A43B 23/042 Uppers made of one piece one piece slippers A43B3/106; one piece sandals A43B3/124
• CPC Class Codes: D04B 1/123 with laid-in unlooped yarn, e.g. fleece fabrics with elastic weft yarn D04B1/18
• CPC Class Codes: D04B 1/14 Other fabrics or articles characterised primarily by the use of particular thread materials
• CPC Class Codes: D04B 1/22 specially adapted for knitting goods of particular configuration
• CPC Class Codes: D04B 15/56 for flat-bed knitting machines
• CPC Class Codes: D04B 7/14 with provision for incorporating internal threads in laid-in fabrics
• CPC Class Codes: D04B 7/30 specially adapted for knitting goods of particular configuration
• CPC Class Codes: D10B 2403/032 Flat fabric of variable width, e.g. including one or more fashioned panels
• CPC Class Codes: D10B 2501/043 Footwear

Abstract

An article of footwear and a variety of other products may incorporate a knitted component. An inlaid strand extends through the knitted component. A combination feeder may be utilized to inlay the strand within the knitted component. As an example, the combination feeder may include a feeder arm that reciprocates between a retracted position and an extended position. In manufacturing the knitted component, the feeder inlays the strand when the feeder arm is in the extended position, and the strand is absent from the knitted component when the feeder arm is in the retracted position.

Claims

1. A method of knitting comprising:

providing a knitting machine having a first feeder that dispenses a yarn, a second feeder that dispenses a strand, and a needle bed that includes a plurality of needles;

wherein a first portion of the plurality of needles being located on a first plane, and a second portion of the plurality of needles being located on a second plane, the plurality of needles being movable from a first position to a second position, the plurality of needles being spaced from an intersection of the first plane and the second plane when in the first position, and the plurality of needles passing through the intersection of the first plane and the second plane when in the second position;

moving at least the first feeder along the needle bed to form a first course of a knit component from the yarn; and

moving the first feeder and the second feeder along the needle bed to (a) form a second course of the knit component from the yarn and (b) inlay the strand into the knit component, the second feeder being located in front of the first feeder, and a dispensing tip of the second feeder being located below a dispensing tip of the first feeder; and

wherein inlaying the strand into the knit component further comprises moving the dispensing tip of the second feeder from a retracted position that is located above the intersection of the first plane and the second plane to an extended position that is located below the intersection of the first plane and the second plane to inlay the strand.

2. The method recited in claim 1, further including a step of reciprocating a position of the dispensing tip of the second feeder in a vertical direction.

3. The method recited in claim 1, further including a step of reciprocating a position of the dispensing tip of the second feeder from a position that is on one side of an area where the needles cross each other to an opposite side of the area where the needles cross each other.

4. The method recited in claim 1, further including a step of selecting the yarn to be at least partially formed from a thermoplastic polymer material.

5. The method recited in claim 4, wherein the step of providing the knitting machine further includes having a third feeder that dispenses a yarn entirely formed from at least one of a thermoset polymer material and natural fibers.

6. The method recited in claim 1, wherein the step of providing the knitting marching further includes a third feeder that dispenses a second yarn, and further including a step of incorporating the second yarn into at least one of the first course and the second course.

7. A method of knitting comprising:

providing a knitting machine having;

(a) a first feeder including a first feeder arm with a first dispensing tip for supplying a yarn,

(b) a second feeder including a second feeder arm with a second dispensing tip for supplying a strand, and

(c) a plurality of needles;

manipulating the yarn with the needles to form a first course of a knit component, the second dispensing tip of the second feeder being in a retracted position during formation of the first course, the retracted position being at or above the first dispensing tip;

placing the second dispensing tip in an extended position to locate the strand adjacent to at least a portion of the knit component, the extended position being below the elevation of the first dispensing tip; and

manipulating the yarn with the needles to form a second course of the knit component and inlay the strand;

wherein the step of providing the knitting machine further includes locating a first portion of the plurality of needles on a first plane and locating a second portion of the plurality of needles on a second plane, the plurality of needles being movable from a first position to a second position, the plurality of needles being spaced from an intersection of the first plane and the second plane when in the first position, and the plurality of needles passing through the intersection of the first plane and the second plane when in the second position; and

wherein the step of placing the second dispensing tip in the extended position further comprises reciprocating the second dispensing tip from the retracted position disposed on one side of the intersection of the first plane and the second plane and to the extended position disposed on an opposite side of the intersection of the first plane and the second plane.

8. The method recited in claim 7,

wherein the step of manipulating further comprises inlaying the strand when the second dispensing tip is located below the intersection of the first plane and the second plane.

9. The method recited in claim 8,

wherein the second dispensing tip reciprocates along an approximately vertical direction between the retracted position and the extended position.

10. The method recited in claim 7, further including steps of (a) moving the first feeder and the second feeder along a needle bed formed by the needles and (b) locating the second feeder in front of the first feeder.

11. A method of knitting comprising:

providing a knitting machine having;

(a) a needle bed that includes a plurality of needles, a first portion of the needles being located on a first plane, and a second portion of the needles being located on a second plane, the needles being movable from a first position to a second position, the needles being spaced from an intersection of the first plane and the second plane when in the first position, and the needles passing through the intersection of the first plane and the second plane when in the second position,

(b) a first feeder that is movable along the needle bed, the first feeder including a first feeder arm with a first dispensing tip for supplying a yarn, the first dispensing tip being located above the intersection of the first plane and the second plane, and

(c) a second feeder that is movable along the needle bed, the second feeder including a second feeder arm with a second dispensing tip for supplying a strand, the second dispensing tip being movable from a retracted position that is located above the intersection of the first plane and the second plane to an extended position that is located below the intersection of the first plane and the second plane;

forming a first course of a knit component by (a) moving the first feeder along the needle bed and in a direction that is parallel to the intersection of the first plane and the second plane, (b) manipulating the yarn with the needles to form a plurality of first loops in the yarn, and (c) placing the second dispensing tip in the retracted position; and

forming a second course of the knit component and inlaying the strand by (a) moving the first feeder and the second feeder along the needle bed and in the direction that is parallel to the intersection of the first plane and the second plane, the second feeder being located in front of the first feeder, (b) manipulating the yarn with the needles to form a plurality of second loops in the yarn, the second loops being intermeshed with the first loops, and (c) placing the second dispensing tip in the extended position;

wherein the strand is inlaid into the knit component between the plurality of first loops and the plurality of second loops when the second dispensing tip is in the extended position below the intersection of the first plane and the second plane.

12. The method recited in claim 11, wherein the step of providing the knitting machine further includes a third feeder that is movable along the needle bed, the third feeder including a third feeder arm with a third dispensing tip for supplying a second yarn, the third dispensing tip being located above the intersection of the first plane and the second plane.

13. The method recited in claim 12, wherein the step of forming the first course further includes (a) moving the third feeder along the needle bed and in the direction that is parallel to the intersection of the first plane and the second plane and (b) incorporating the second yarn into the plurality of first loops.

14. The method recited in claim 12, wherein the step of forming the second course further includes (a) moving the third feeder in the direction that is parallel to the intersection of the first plane and the second plane, the second feeder being located in front of the third feeder and (b) incorporating the second yarn into the plurality of second loops.

15. The method recited in claim 12, wherein the first yarn is a non-fusible yarn and the second yarn is a fusible yarn.

16. The method recited in claim 15, further including a step of heating the knit component to (a) bond the second yarn to the first yarn and (b) bond the second yarn to the strand.

17. The method recited in claim 15, wherein the first yarn is entirely formed from at least one of a thermoset polymer material and natural fibers, and the second yarn is at least partially formed from a thermoplastic polymer material.

18. The method recited in claim 15, wherein the first yarn is substantially formed from thermoset polyester, and the second yarn is at least partially formed from a thermoplastic polyester.