Shoe

• US 4,232,458 A
• Filed: 03/13/1978
• Issued: 11/11/1980
• Est. Priority Date: 03/13/1978
• Status: Expired due to Term

• Current Assignee: Barrday Incorporated
• Original Assignee: Wheelabrator Canada Incorporated
• Inventors: Bartels, Bruce E.
• Primary Examiner(s): Jaudon, Henry
• Application Number:
  US05/886,042
• Time in Patent Office: 974 Days
• Field of Search: 139/408, 139/409, 139/410, 139/411, 139/412, 139/413, 139/414, 139/415, 36/45, 36/51
• US Class Current: 36/45
• CPC Class Codes: A43B 1/028 Synthetic or artificial fibres
• CPC Class Codes: A43B 1/04 braided, knotted, knitted or crocheted
• CPC Class Codes: A43B 1/05 woven
• CPC Class Codes: A43B 23/0235 Different layers of different material
• CPC Class Codes: A43B 7/06 ventilated

Abstract

The present invention provides a breathable fabric comprising a woven first layer and a woven second layer said first layer at spaced points both longitudinally and laterally of said fabric being interwoven with said second layer providing tie-in points of said first layer to said second layer, the spacing between the tie-in points being sufficiently close to provide that the layers are always in contact with each other over the whole area of the adjacent surfaces.

Claims

1. A shoe including an upper in which the upper is fabricated at least substantially from a breathable fabric comprising a woven fabric face layer having bulky warp and weft threads interlaced to define cross-over points, and a woven fabric back layer having fine warp and weft threads interlaced to define cross-over points, said face layer at spaced cross-over points thereof being interwoven with said back layer to provide discrete tie-in points of said face layer to said back layer, said spaced cross-over points being separated both longitudinally and laterally by intermediate cross-over points at which no interweaving between the fabric layers occurs, the interweaving at said tie-in points being by means of a single weft thread from one layer and a single warp thread from the other layers, the spacing between adjacent discrete tie-in points being at least 2/16" and not greater than 9/16" and sufficiently close to provide that the layers always remain in contact with each other over the whole area of their adjacent surfaces and have substantially no relative movement in use, and whereby said layers retain their separate identities and said fabric, when viewed from said face layer side, generally not having an interwoven appearance.

2. Shoe of claim 1, wherein said shoe is an athletic shoe.

3. A shoe as claimed in claim 1 in which the tie-in points are equi-spaced both longitudinally and laterally of the fabric.

4. A fabric as claimed in claim 3 in which the spacing of the tie-in points is not greater than about 9/16" square.

5. A shoe as claimed in claim 3 in which the spacing of the tie-in points is in the range 2/16 to 4/16" square.

6. A shoe as claimed in claim 1 in which the first and second layers are plain woven fabrics.

7. A shoe as claimed in claim 1 in which the layers are formed from fibres or filaments of thermoplastic material.

8. A shoe as claimed in claim 1 in which the layers are formed from layers of different thermoplastic resin fibres or filaments.

9. A shoe as claimed in claim 1 in which one of the layers is of nylon fibres and filaments and the other of the layers is of polyester fibres and filaments.

10. A shoe as claimed in claim 1 in which one of the layers is of fibres or filaments of nylon and the other of fibres or filaments of polyethylene terephthalate.

11. A shoe as claimed in claim 1 in which the first layer is of nylon fibres or filaments and the second layer is of polyethylene terephthalate fibres or filaments.

12. A shoe as claimed in claim 1 in which the first layer is a plain weave nylon fibre with from about 24 to 40 ends per inch and 16 to 25 picks greige per inch and the second layer is a plain weave polyethylene terephthalate with from 37 to 59 ends per inch and 22 to 35 picks greige per inch with a tie point spacing of not more than 9/16" square.

13. A shoe as claimed in claim 10 which has been dyed and heat set.

14. A shoe as claimed in claim 1 in which the first layer is a plain weave bulk nylon fibre with 20 ends per inch and 32 picks greige per inch and a Denier of 1300 and the second layer is a plain weave polyethylene terephthalate fibre with 49 ends per inch and 30 picks greige per inch and of 20/2 c/c, the tie point spacing being 3/16" square.

15. A shoe as claimed in claim 12 which is heat set and dyed.