Fiber structure, shoe, clothing item, bag, and method of manufacturing fiber structure

Patent metadata

Field	Value
Publication number	US-2025389064-A1
Application number	US-202519242398-A
Country	US
Kind code	A1
Filing date	Jun 18, 2025
Priority date	Jun 19, 2024
Publication date	Dec 25, 2025
Grant date	—

Abstract

To provide a fiber structure 100 at least part of which has a layer structure including a first fiber layer 110, a second fiber layer 120, and a third fiber layer 130 that are arranged parallel to one another, a first suspension layer 140 that is composed of a weaving yarn or a knitting yarn stretched between the first fiber layer 110 and the second fiber layer 120, and a second suspension layer 150 that is composed of a weaving yarn or a knitting yarn stretched between the second fiber layer 120 and the third fiber layer 130. The fiber structure 100 can be adopted particularly as a material of shoes, clothing items, bags, and the like required to have various functions.

First claim

What is claimed is:

1 . A fiber structure at least part of which has a layer structure including
a first fiber layer, a second fiber layer, and a third fiber layer that are arranged parallel to one another, a first suspension layer that is composed of a weaving yarn or a knitting yarn stretched between the first fiber layer and the second fiber layer, and a second suspension layer that is composed of a weaving yarn or a knitting yarn stretched between the second fiber layer and the third fiber layer.

2 . The fiber structure according to claim 1 , wherein
each of the first fiber layer, the second fiber layer, and the third fiber layer is a knitted layer or a woven layer.

3 . The fiber structure according to claim 1 , wherein
the first suspension layer has a higher air permeability than either the first fiber layer or the second fiber layer, and the second suspension layer has a higher air permeability than either the second fiber layer or the third fiber layer.

4 . The fiber structure according to claim 1 , wherein
a layer structure of the first suspension layer differs from a layer structure of the second suspension layer.

5 . The fiber structure according to claim 4 , wherein
a thickness of the first suspension layer differs from a thickness of the second suspension layer.

6 . The fiber structure according to claim 4 , wherein
a material of the weaving yarn or the knitting yam of the first suspension layer differs from a material of the weaving yarn or the knitting yam of the second suspension layer.

7 . The fiber structure according to claim 4 , wherein
an air permeability of the first suspension layer differs from an air permeability of the second suspension layer.

8 . The fiber structure according to claim 1 , wherein
at least one of the first suspension layer and the second suspension layer has a first region and a second region partitioned from each other in a plane direction, and a layer structure in the first region differs from a layer structure in the second region.

9 . The fiber structure according to claim 1 , wherein
the weaving yarn or the knitting yarn of the first suspension layer reaches a surface of the second fiber layer facing the third fiber layer and is folded back, and the weaving yarn or the knitting yarn of the second suspension layer reaches a surface of the second fiber layer facing the first fiber layer and is folded back.

10 . The fiber structure according to claim 9 , wherein
the second fiber layer includes a folded portion of each of the weaving yarn or the knitting yam of the first suspension layer and the weaving yarn or the knitting yarn of the second suspension layer.

11 . The fiber structure according to claim 9 , wherein
the second fiber layer is composed of the weaving yarn or the knitting yarn of the first suspension layer and the weaving yam or the knitting yam of the second suspension layer.

12 . A shoe that adopts the fiber structure according to claim 1 .

13 . A clothing item that adopts the fiber structure according to claim 1 .

14 . A bag that adopts the fiber structure according to claim 1 .

15 . A method of manufacturing a fiber structure, the method comprising:
a plane layer forming step of forming a first fiber layer, a second fiber layer, and a third fiber layer; and a suspension layer forming step of forming a first suspension layer by stretching a weaving yarn or a knitting yarn between the first fiber layer and the second fiber layer and forming a second suspension layer by stretching a weaving yarn or a knitting yarn between the second fiber layer and the third fiber layer.

16 . A method of manufacturing a fiber structure, the method comprising:
an outer layer forming step of forming a first fiber layer and a third fiber layer; and an inner layer forming step of forming a second fiber layer by causing, between the first fiber layer and the third fiber layer, a weaving yarn or a knitting yarn drawn from the first fiber layer toward the third fiber layer to cross a weaving yarn or a knitting yarn drawn from the third fiber layer toward the first fiber layer, forming a first suspension layer by causing the weaving yarn or the knitting yarn drawn from the first fiber layer to reach the second fiber layer and return to the first fiber layer, and forming a second suspension layer by causing the weaving yarn or the knitting yarn drawn from the third fiber layer to reach the second fiber layer and return to the third fiber layer.

Assignees

• Asics Corp

Inventors

• Suzuki Chihaya

Classifications

• D10B2501/043

  Footwear · CPC title

• D10B2403/033

  Three dimensional fabric, e.g. forming or comprising cavities in or protrusions from the basic planar configuration, or deviations from the cylindrical shape as generally imposed by the fabric forming process · CPC title

• D03D1/04 Primary

  Sack- or bag-like articles · CPC title

• D10B2403/022

  Lofty fabric with variably spaced front and back plies, e.g. spacer fabrics · CPC title

• D10B2403/023

  Fabric with at least two, predominantly unlinked, knitted or woven plies interlaced with each other at spaced locations or linked to a common internal co-extensive yarn system · CPC title