U.S. patent application number 14/721507 was filed with the patent office on 2016-12-01 for hybrid braided article.
The applicant listed for this patent is NIKE, Inc.. Invention is credited to Robert M. Bruce, Eun Kyung Lee, Craig K. Sills.
Application Number | 20160345675 14/721507 |
Document ID | / |
Family ID | 56098435 |
Filed Date | 2016-12-01 |
United States Patent
Application |
20160345675 |
Kind Code |
A1 |
Bruce; Robert M. ; et
al. |
December 1, 2016 |
Hybrid Braided Article
Abstract
An upper for an article of footwear is formed by incorporating
different braided portions. The upper may be formed by
incorporating a first braided portion with a second braided
portion. The top portion of the upper may have the first braided
portion. The lower portion of the upper may have the second braided
portion.
Inventors: |
Bruce; Robert M.; (Portland,
OR) ; Lee; Eun Kyung; (Beaverton, OR) ; Sills;
Craig K.; (Tigard, OR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
NIKE, Inc. |
Beaverton |
OR |
US |
|
|
Family ID: |
56098435 |
Appl. No.: |
14/721507 |
Filed: |
May 26, 2015 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A43B 23/0245 20130101;
D04C 1/08 20130101; A43B 1/04 20130101; A43B 23/0205 20130101; A43B
23/042 20130101; D04C 1/06 20130101; D04C 3/48 20130101; D10B
2501/043 20130101 |
International
Class: |
A43B 23/02 20060101
A43B023/02; D04C 1/06 20060101 D04C001/06; A43B 23/04 20060101
A43B023/04 |
Claims
1. An article of footwear comprising: a sole; an upper attached to
the sole; wherein the upper includes a first portion and a second
portion; wherein the first portion has a Jacquard braid pattern;
and wherein the second portion has a Non-Jacquard braid
pattern.
2. The article of claim 1, wherein the first portion includes at
least a first stitch, and a second stitch, and wherein the first
stitch is different than the second stitch.
3. The article of claim 2, wherein the first stitch forms a first
texture, and the second stitch forms a second texture, and wherein
the first texture is different than the second texture.
4. The article of claim 1, wherein the first portion has a first
flexibility, and the second portion has a second flexibility, and
wherein the first flexibility is different than the second
flexibility.
5. The article of claim 1, wherein the first portion has a first
abrasion resistance, and the second portion has a second abrasion
resistance, and wherein the first abrasion resistance is different
than the second abrasion resistance.
6. The article of claim 1, wherein the first portion has a first
tensile strength, and the second portion has a second tensile
strength, and wherein the first tensile strength is different than
the second tensile strength.
7. The article of claim 1, wherein the first portion includes a
finished edge.
8. An article of footwear comprising: a sole; an upper attached to
the sole; wherein the upper comprises a seamless braided structure;
wherein the seamless braided structure includes a top portion and a
lower portion; wherein the top portion has a Jacquard braid
pattern; and wherein the lower portion has a Non-Jacquard braid
pattern.
9. The article of claim 8, wherein the top portion includes a
finished edge.
10. The article of claim 8, wherein the top portion has a surface
area substantially encompassing 50 percent of a total surface area
of the seamless braided structure.
11. The article of claim 8, wherein the top portion includes a
first stitch, and a second stitch, and wherein the first stitch is
different than the second stitch.
12. The article of claim 8, wherein the top portion has a surface
area substantially greater than the lower portion.
13. The article of claim 8, wherein the lower portion has a surface
area substantially greater than the top portion.
14. The article of claim 8, wherein the top portion includes a
throat opening.
15. The article of claim 8, wherein the lower portion is
substantially in contact with the sole.
16. A method of making an article of footwear, comprising:
providing a set of spools configured with a set of tensile
elements; providing a braiding machine having a first section and a
second section; wherein the braiding machine is configured with the
set of spools; passing a last through a braiding point, the
braiding point being a region where the set of tensile elements
converge, thereby forming a seamless braided structure on the last;
moving the set of spools through the first section to form a first
braid portion of the seamless braided structure; moving the set of
spools through the second section to form a second braid portion of
the seamless braided structure; wherein a set of rotor gears move
the set of spools in a Jacquard motion in the first section; and
wherein the set of rotor gears move the set of spools in a
Non-Jacquard motion in the second section.
17. The method of claim 16, further including forming a Jacquard
braid pattern in the first braid portion.
18. The method of claim 17, further including forming a
Non-Jacquard braid pattern in the second braid portion.
19. The method of claim 17, further including forming the first
braid portion with a first texture and a second texture, and
wherein the first texture is different than the second texture.
20. The method of claim 16, further including forming a finished
edge in the first braid portion.
Description
BACKGROUND OF THE INVENTION
[0001] The present embodiments relate generally to articles of
footwear, and in particular to articles of footwear with
uppers.
[0002] Articles of footwear generally include an upper and one or
more sole structures. The upper may be formed from a variety of
materials that are stitched or adhesively bonded together to form a
void within the footwear for comfortably and securely receiving a
foot. The sole structures may include midsole structures that
provide cushioning and shock absorption.
SUMMARY OF THE INVENTION
[0003] In one aspect, the invention provides a sole and an upper
attached to the sole. The upper includes a first portion and a
second portion. The first portion has a Jacquard braid pattern. The
second portion has a Non-Jacquard braid pattern.
[0004] In another aspect, the invention provides a sole and an
upper attached to the sole. The upper includes a seamless braided
structure. The seamless braided structure includes a top portion
and a lower portion. The top portion has a Jacquard braid pattern.
The lower portion has a Non-Jacquard braid pattern.
[0005] In another aspect, the invention provides a method of making
an article of footwear. The method comprises providing a set of
spools to configure with a set of tensile elements. Providing a
braiding machine configured with the set of spools. Passing a last
through a braiding point, where the tensile elements converge
thereby forming a seamless braided structure on the last. Moving
the set of spools through a first section to form a first braid
portion of the braided structure. Moving the set of spools through
a second section to form a second braid portion of the braided
structure. Wherein a set of rotor gears move the set of spools in a
Jacquard motion in the first section. Wherein the set of rotor
gears move the set of spools in a Non-Jacquard motion in the second
section.
[0006] Other systems, methods, features, and advantages of the
invention 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 invention,
and be protected by the following claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] 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.
[0008] FIG. 1 is an isometric view of an embodiment of an article
of footwear with a first braided portion and a second braided
portion;
[0009] FIG. 2 is a schematic close-up view of a first braided
portion of FIG. 1;
[0010] FIG. 3 is a schematic close-up view of a second braided
portion of FIG. 1;
[0011] FIG. 4 is a side view of an embodiment of an article of
footwear with an upper having a first braided portion and a second
braided portion;
[0012] FIG. 5 is an isometric view of an embodiment of an article
of footwear with an upper having a first braided portion and a
second braided portion;
[0013] FIG. 6 is a schematic enlarged isometric view of a forefoot
portion of the article of footwear of FIG. 5.
[0014] FIG. 7 is a schematic view of an embodiment of an article of
footwear with an upper having a first braided portion and a second
braided portion;
[0015] FIG. 8 is a schematic cross-sectional view of a forefoot
portion of the article of footwear of FIG. 7;
[0016] FIG. 9 is a schematic view of an embodiment of an article of
footwear with an upper having a first braided portion and a second
braided portion;
[0017] FIG. 10 is a schematic view of an enlarged cross-sectional
view of a forefoot portion of the article of footwear of FIG.
9;
[0018] FIG. 11 is a schematic view of an embodiment of an article
of footwear with a first braided portion and a second braided
portion;
[0019] FIG. 12 is a schematic view of an embodiment of a braiding
machine;
[0020] FIG. 13 is a schematic view of an embodiment of a braiding
machine with an enlarged view of a section of the braiding
machine;
[0021] FIG. 14 is a schematic view of an embodiment of a braiding
machine with enlarged views of a first section and a second
section;
[0022] FIG. 15 is top down schematic view of an embodiment of a
braiding machine with a first section and a second section;
[0023] FIG. 16 is top down schematic view of an embodiment of a
braiding machine depicting spool paths of a first section and a
second section of the braiding machine;
[0024] FIG. 17 is top down schematic view of an embodiment of a
braiding machine with a first section and a second section; and
[0025] FIG. 18 is top down schematic view of an embodiment of a
braiding machine depicting spool paths of a first section and a
second section of the braiding machine.
DETAILED DESCRIPTION
[0026] FIG. 1 illustrates an isometric view of an embodiment of an
article of footwear. In some embodiments, article of footwear 100,
also referred to simply as article 100, is in the form of an
athletic shoe. In some other embodiments, the provisions discussed
herein for article 100 could be incorporated into various other
kinds of footwear including, but not limited to, basketball shoes,
hiking boots, soccer shoes, football shoes, sneakers, running
shoes, cross-training shoes, rugby shoes, baseball shoes as well as
other kinds of shoes. Moreover, in some embodiments, the provisions
discussed herein for article of footwear 100 could be incorporated
into various other kinds of non-sports related footwear, including,
but not limited to, slippers, sandals, high-heeled footwear,
loafers, as well as other kinds of footwear.
[0027] In some embodiments, article 100 may be characterized by
various directional adjectives and reference portions. These
directions and reference portions may facilitate in describing the
portions of an article of footwear. Moreover, these directions and
reference portions may also be used in describing subcomponents of
an article of footwear, for example, directions and/or portions of
a midsole structure, an outer sole structure, an upper, or any
other components.
[0028] For consistency and convenience, directional adjectives are
employed throughout this detailed description corresponding to the
illustrated embodiments. The term "longitudinal" as used throughout
this detailed description and in the claims may refer to a
direction extending the length of article 100. In some cases, the
longitudinal direction may extend from a forefoot region to a heel
region of article 100. Also, the term "lateral" as used throughout
this detailed description and in the claims may refer to a
direction extending along the width of article 100. In other words,
the lateral direction may extend between a lateral side and a
medial side of article 100. Furthermore, the term "vertical" as
used throughout this detailed description and in the claims may
refer to a direction generally perpendicular to a lateral and
longitudinal direction. For example, in some cases where article
100 is planted flat on a ground surface, the vertical direction may
extend from the ground surface upward. In addition, the term
"proximal" may refer to a portion of article 100 that is closer to
portions of a foot, for example, when article 100 is worn.
Similarly, the term "distal" may refer to a portion of article 100
that is further from a portion of a foot when article 100 is worn.
It will be understood that each of these directional adjectives may
be used in describing individual components of article 100, such as
an upper, outsole member, midsole member, as well as other
components of an article of footwear.
[0029] As shown in FIG. 1, article 100 may be associated with the
right foot; however, it should be understood that the following
discussion may equally apply to a mirror image of article 100 that
is intended for use with a left foot. In some embodiments, an
article may include upper 102. Likewise, article 100 may include
sole structure 103 secured to upper 102. For purposes of reference,
article 100 may be divided into forefoot portion 104, midfoot
portion 106, and heel portion 108. Forefoot portion 104 may be
generally associated with the toes and joints connecting the
metatarsals with the phalanges. Midfoot portion 106 may be
generally associated with the arch of a foot. Likewise, heel
portion 108 may be generally associated with the heel of a foot,
including the calcaneus bone. Article 100 may also include ankle
portion 110 (which may also be referred to as a cuff portion). In
addition, article 100 may include lateral side 112 and medial side
114. In particular, lateral side 112 and medial side 114 may be
opposing sides of article 100. In general, lateral side 112 may be
associated with the outside parts of a foot while medial side 114
may be associated with the inside part of a foot. Furthermore,
lateral side 112 and medial side 114 may extend through forefoot
portion 104, midfoot portion 106, and heel portion 108.
[0030] It will be understood that forefoot portion 104, midfoot
portion 106, and heel portion 108 are only intended for purposes of
description and are not intended to demarcate precise regions of
article 100. Likewise, lateral side 112 and medial side 114 are
intended to represent generally two sides rather than precisely
demarcating article 100 into two halves.
[0031] In some embodiments, article 100 may be configured with
upper 102. Upper 102 may include ankle opening 118 to provide
access to interior cavity 120. Upper 102 may also include throat
opening 119 to further facilitate access to interior cavity 120. In
some embodiments, upper 102 may incorporate a plurality of material
elements (for example, textiles, polymer sheets, form layers,
leather, synthetic leather) that are stitched or bonded together to
form an interior void for securely and comfortably receiving a
foot. In some cases, the material elements may be selected to
impart properties of durability, air permeability, wear resistance,
flexibility, and comfort, for example, to specific areas of upper
102.
[0032] Some embodiments may include provisions for providing
different physical characteristics and properties for an upper. In
some embodiments, article 100 may have upper 102 formed with
braided structure 130. In some embodiments, upper 102 may have more
than one braided structure. In an exemplary embodiment, upper 102
may have top part or first portion 132 formed with first braided
structure 134, and lower part or second portion 136 formed with
second braided structure 138. In some embodiments, first braided
structure 134 may have different characteristics than second
braided structure 138 even though both structures are formed from
the same tensile elements.
[0033] In some embodiments, first portion 132 with first braided
structure 134 may extend along the length of article 100 along a
longitudinal direction from forefoot portion 104 through midfoot
portion 106 to heel portion 108. In some cases, first portion 132
may also include ankle opening 118 and throat opening 119.
[0034] Likewise, in some embodiments, second portion 136 with
second braided structure 138 may extend along the length of article
100 along a longitudinal direction from forefoot portion 104
through midfoot portion 106 to heel portion 108. Second portion 136
may also extend along the width of the article along a lateral
direction from lateral side 112 to medial side 114. Further, second
portion 136 may be in direct contact with sole structure 103.
[0035] As shown FIGS. 2 and 3, first braided structure 134 may have
components that are arranged in a braid pattern that is different
from second braided structure 138. In some embodiments, the
components or tensile elements may be arranged in a braid pattern
where tensile elements are more or less dense. In one embodiment,
tensile elements 140 for second braided structure 138 are braided
to have a greater density than tensile elements 140 braided for
first braided structure 134. Furthermore, as arranged, tensile
elements 140 in second braided structure 138 substantially form a
rhombiform mesh pattern 122 having two acute angles 124 and two
obtuse angles 126. In some other embodiments, tensile elements 140
in second braided structure 138 may form a mesh pattern where the
angles are substantially the same. In some embodiments, the
different types of braided structures may impart different physical
properties for an upper. The different properties associated with
different braided structures will be explained further in detail
below.
[0036] The detailed description and the claims may make reference
to various kinds of tensile elements, braided structures, braided
configurations, braided patterns, and braiding machines. As used
herein, the term "tensile element" refers to any kinds of threads,
yarns, strings, filaments, fibers, wires, cables as well as
possibly other kinds of tensile elements described below or known
in the art. As used herein, tensile elements may describe generally
elongated materials with lengths much greater than corresponding
diameters. In some embodiments, tensile elements may be
approximately one-dimensional elements. In some other embodiments,
tensile elements may be approximately two dimensional, that is,
with thicknesses much less than their lengths and widths. Tensile
elements may be joined to form braided structures. A "braided
structure" may be any structure formed intertwining three or more
tensile elements together. Braided structures could take the form
of braided cords, ropes, or strands. Alternatively, braided
structures may be configured as two-dimensional structures, for
example, flat braids, or three-dimensional structures, for example,
braided tubes, such as with lengths and widths (or diameters)
significantly greater than their thicknesses.
[0037] A braided structure may be formed in a variety of different
configurations. Examples of braided configurations include, but are
not limited to, the braiding density of the braided structure, the
braid tension(s), the geometry of the structure, for example,
formed as a tube, or an article; the properties of individual
tensile elements, for example, materials, cross-sectional geometry,
elasticity, tensile strength; as well as other features of the
braided structure. One specific feature of a braided configuration
may be the braid geometry, or braid pattern, formed throughout the
entirety of the braided configuration or within one or more regions
of the braided structure. As used herein, the term "braid pattern"
refers to the local arrangement of tensile elements in a region of
the braided structure. Braid patterns can vary widely and may
differ in one or more of the following characteristics: the
orientations of one or more groups of tensile elements (or
strands), the geometry of spaces or openings formed between braided
tensile elements, the crossing patterns between various strands as
well as possibly other characteristics. Some braided patterns
include lace-braided or Jacquard patterns, such as Chantilly, Bucks
Point, and Torchon. Other patterns include biaxial diamond braids,
biaxial regular braids, as well as various kinds of triaxial
braids.
[0038] Braided articles or braided structures can be formed with
various kinds of braid patterns, as described above. The present
embodiments may be characterized as having braid patterns than are
"jacquard braid patterns" or "non-jacquard braid patterns".
Jacquard braid patterns and non-jacquard braid patterns may refer
to distinct classes of braid patterns. Thus jacquard braid patterns
may comprise a variety of different braid patterns that share
common features, and non-jacquard braid patterns may comprise a
variety of different braid patterns that share common features. One
type of jacquard braid pattern may be a lace braid pattern. Another
type of jacquard braid pattern may be a Torchon braid pattern, or
Torchon lace braid pattern. In contrast, non-jacquard braid
patterns may be associated with bi-axial, tri-axial, diamond, or
other kinds of regular braid patterns. In some cases, a
non-jacquard braid pattern may be referred to as a radial braid
pattern, as non-jacquard braid patterns can be easily formed using
a radial braiding machine. However, it may be appreciated that in
some cases non-jacquard braid patterns can also be formed from
machines that may not be radial braiding machines. Thus, it should
be appreciated that the terms "jacquard braid pattern" and
"non-jacquard braid pattern" refer to the configuration of a
braided structure, and may be independent of the type of machine,
or method, used to make the braided structure.
[0039] Generally, jacquard braid patterns and non-jacquard braid
patterns may have different characteristics. For example, jacquard
braid patterns may be characterized as more open, with spacing
between adjacent tensile strands varying in a non-uniform manner.
In contrast, non-jacquard braid patterns may generally be uniform.
In some cases, non-jacquard braid patterns may be grid or lattice
like. Jacquard and non-jacquard braid patterns can also be
characterized by the presence or absence of ornamental designs.
Specifically, jacquard braid patterns may feature one or more
ornamental designs whereas non-jacquard braid patterns lack such
ornamental designs due to the nature in which they are formed (by
moving spools around on a constant path of the braiding machine).
Further, the density of tensile strands (e.g., the average number
of strands in a given area) may be highly variable in a jacquard
braid pattern and may change along multiple directions of the
braided structure. In contrast, the density of tensile strands in a
non-jacquard braid pattern may generally be constant, or change
only along a single axial direction dictated by the method of
forming a braided structure. Thus, while some non-jacquard braid
patterns could have densities that vary along one axis of the
structure, they may generally not very in density along multiple
different directions of the structure.
[0040] In some embodiments, different braid patterns may be
selected for different portions of an upper. For example, as seen
in FIG. 1, first portion 132 has braided tensile elements 140
arranged in a first pattern that is different in appearance than a
second pattern shown in second portion 136.
[0041] Referring to FIG. 4, a side view of article 100 having an
upper 102 attached to sole structure 103 is shown. In some
embodiments, upper 102 includes a top part with first portion 132
having first braided structure 134, and a lower part with second
portion 136 having second braided structure 138 is shown.
[0042] In some embodiments, first braided structure134 may have
first braid pattern 150 and second braid pattern 152 (shown also in
FIG. 1). First braid pattern 150 may be may be associated with a
Jacquard braid pattern. Second braid pattern 152 may be associated
with a Non-Jacquard braid pattern. With this arrangement, article
100 may have physical properties that vary with different portions
of upper 102. For example, in some embodiments, a braided structure
with a Jacquard braid pattern may have a lower density or greater
elasticity than a braided structure with a Non-Jacquard braid
pattern. In still some cases, a braided structure with a Jacquard
braid pattern may further include intricate patterns and designs
that may be absent from a braided structure with a Non-Jacquard
braid pattern. In some other cases, a braided structure with a
Non-Jacquard braid patterns may have a greater density and greater
abrasion resistance than a braided structure with a Jacquard braid
pattern.
[0043] In some embodiments, first braid pattern 150 may include
finished edge 160. As used in this detailed description and in the
claims, finished edge 160 and its variants thereof may refer to an
aperture or opening that may eliminate a need for cutting, sewing,
or skinning to create a structure for eyelets, laces, or other
components facilitating the adjustment of article 100 to a user's
foot. As shown in FIG. 1, in some embodiments, first braid pattern
150 with finished edge 160 eliminates the need for eyelets for
laces 162. Alternatively, first braid pattern 150 could be formed
with explicitly defined eyelet regions adjacent finished edge 160.
Moreover, this feature allows further reduction of the overall
weight of article 100 while still enabling the adjustment of
article 100 on a user's foot.
[0044] FIGS. 5 and 6 illustrate an isometric view of upper 102 with
braided structure 130 comprising first portion 132 and second
portion 136, including an enlarged isometric view of a portion of
braided structure 130. In particular, an isometric cross-sectional
view of forefoot portion 104 of braided structure 130 is shown. For
purposes of illustration, upper 102 and braided structure 130 are
shown isolated from sole structure 103.
[0045] As seen in FIG. 6, forefoot portion 104 has cross-sectional
area 170 where first braided structure 134 is incorporated with
second braided structure 138 to form seamless braided structure
172. It is to be noted that the same tensile elements 140 are used
in first braided structure 134, which has a first braid pattern,
and second braided structure 138, which has a second braid
pattern.
[0046] Referring to FIGS. 5 and 6, in some embodiments, first
surface area 190 of first braided structure 134 may encompass 50
percent or more of total surface area 194 of seamless braided
structure 172. In some embodiments, second surface area 192 of
second braided structure 138 may encompass 50 percent or more of
total surface area 194 of seamless braided structure 172. In one
embodiment, seamless braided structure 172 may have half of its
total surface area 194 with a Jacquard braid pattern, and the other
half with a Non-Jacquard braid pattern.
[0047] In some cases, total cross-sectional area 196 of upper 102
with seamless braided structure 172 may also be divided between
Jacquard and Non-Jacquard braid patterns. In one embodiment, total
cross-sectional area 196 may be divided equally between first
cross-sectional area 197 with a Jacquard braid pattern and second
cross-sectional area 198 with a Non-Jacquard braid pattern.
[0048] Some embodiments may provide different zones or portions of
an upper with varying degrees of different physical properties. In
some embodiments, a degree of relative thickness between a first
portion and a second portion may vary. In some other embodiments, a
degree of relative tensile strength may vary between a first
portion and a second portion. In still some other embodiments, a
degree of relative flexibility may vary between a first portion and
a second portion. In different embodiments, a degree of relative
abrasion resistance may vary between a first portion and a second
portion. In other embodiments, other physical properties within the
upper may vary between different portions.
[0049] In some embodiments, an upper may have a degree of relative
thickness between different braided structures. In some
embodiments, the thickness of first portion 132 with first braided
structure 134 may be substantially the same as the thickness of
second portion 136 with second braided structure 138. In an
exemplary embodiment, first braided structure 134 with first braid
pattern 150 (i.e., Jacquard braid pattern) may have first thickness
174 that is substantially the same as second thickness 176 of
second braided structure 138 with second braid pattern 152 (i.e.,
Non-Jacquard braid pattern). In some other embodiments, the
thicknesses may be substantially different. With this capability,
the thickness of a braided structure for a portion of an upper may
be tuned to provide a desired customized fit or comfort to the
wearer.
[0050] In some embodiments, a degree of relative tensile strength
between first braided structure 134 and second braided structure
138 may vary. In some embodiments, first portion 132 with first
braided structure 134 may exhibit a higher tensile strength than
second portion 136. Therefore, first braided structure 134 may
provide greater stretch resistance in locations where desired. In
some other embodiments, those skilled in the art may provide second
braided structure 138 with a higher tensile strength than first
braided structure 134.
[0051] In some embodiments, a degree of relative flexibility
between first braided structure 134 and second braided structure
138 may vary. In some embodiments, first portion 132 with first
braided structure 134 may be more flexible because of first braid
pattern 150. In some embodiments, tensile elements 140 arranged in
first braid pattern 150 (i.e., a Jacquard braid pattern) provides
greater flexibility than tensile elements arranged in second braid
pattern 152 (i.e., a Non-Jacquard braid pattern). In some other
embodiments, upper 102 may have different portions with greater
degrees of flexibility.
[0052] In some embodiments, a degree of relative wear or abrasion
resistance between first braided structure 134 and second braided
structure 138 may vary. In one embodiment, second portion 136 with
second braided structure 138 may be more wear resistant because of
second braid pattern 152. In certain embodiments, the relative
density of tensile elements 140 arranged in a Non-Jacquard braid
pattern may exhibit greater abrasion resistance than other portions
with other braided structures and braid patterns. Therefore,
portions of upper 102 proximal to a ground surface may be formed to
be sufficiently durable and complement the wear resistance of a
sole structure attached to upper 102.
[0053] Some braided portions may encompass a greater area of an
upper than other braided portions. In some embodiments, an upper
may have a first braided structure with a Jacquard braid pattern
covering more of an upper's surface area than a second braided
structure with a Non-Jacquard braid pattern. FIGS. 7-10 illustrate
several variations of an upper with different braided structures
having different braid patterns encompassing more or less of an
upper's surface area. For purposes of illustration, the figures
show an upper for an article of footwear without a sole
structure.
[0054] The exemplary embodiment shown in FIGS. 7 and 8 illustrate
the relative surface area of upper 202 covered by first portion 204
with first braided structure 206 and second portion 208 with second
braided structure 210. In particular, FIG. 7 shows an isometric
view of upper 202 having first braided structure 206 with first
braid pattern 212, (i.e., Jacquard braid pattern), encompassing
more of a surface area than second braided structure 210 with
second braid pattern 214 (i.e., Non-Jacquard braid pattern).
[0055] FIG. 8 illustrates an enlarged cross-sectional view of first
portion 204 and second portion 208. As shown, second portion 208
covers only the lower part of upper 202. Moreover, as shown in the
enlarged cross-sectional view, first cross-sectional area 216 of
first portion 204 is greater than second cross-sectional area 218
of second portion 208. In some embodiments, with this arrangement,
upper 202, having its surface area covered by a majority of first
braided structure 206, may result in upper 202 being lighter
thereby reducing the overall weight of an article of footwear. In
some cases, with this arrangement, because first portion 204 has a
more open structure, first portion 204 is more breathable than
second portion 208 and allows moisture to be transmitted through
the material more readily.
[0056] In contrast to the embodiment shown in FIGS. 7 and 8, in
other embodiments, a first braided structure may encompass less of
a surface area than a second braided structure. Referring to FIGS.
9 and 10, in one embodiment, second portion 308, having second
braided structure 310 with second braid pattern 314 (i.e.,
Non-Jacquard braid pattern), may cover a greater surface area of
upper 302 than first portion 304 having first braided structure 306
with first braid pattern 312 (i.e., Jacquard braid pattern).
Further, FIG. 10 illustrates an enlarged view of second
cross-sectional area 318 that is greater than first cross-sectional
area 316.
[0057] In some embodiments, upper 302 with a surface area covered
by a majority of second braided structure 310 may vary the physical
properties of upper 302. In one embodiment, upper 302, having a
majority of its surface area covered by second braided structure
310, may be resistant to abrasion and water than first braided
structure 306. In still some other embodiments, second braided
structure 310, having axial tensile elements, may improve the
overall stability of the article.
[0058] Referring to FIG. 11, another variation of an article with
an upper is illustrated. In some embodiments, first portion 404
with first braided structure 406 may comprise of first braid
pattern 408. In some embodiments, first braid pattern 408 may be a
Jacquard braid pattern. Further, second portion 410 with second
braided structure 412 may comprise of second braid pattern 414 or a
Non-Jacquard braid pattern. In certain embodiments, first braid
pattern 408 may include several intricate or ornamental designs,
referred to hereafter as textures 420. Textures 420 may be formed
by the intersection of tensile elements 422 during the braiding
process. The intersection of tensile elements 422 to form textures
420 may be referred to hereafter as a stitch. In some embodiments,
first texture 424 may be formed by first stitch 426. In some cases,
first stitch 426 provides first texture 424 with tensile elements
422 spaced apart to resemble netting or a lattice-like structure.
In some embodiments, first braid pattern 408 may include a second
texture 428 formed by second stitch 430. Second texture 428 may be
characterized as having a less open texture than first texture 424
but still associated with a Jacquard braid pattern. Moreover, as
already discussed above, the different textures for first portion
404 may impart different physical properties such as flexibility.
In some other embodiments, those skilled in the art may use other
stitches to form other textures 420 thereby providing other
distinct ornamental designs or physical properties to a braided
structure with a Jacquard braid pattern.
[0059] Braided structures may be formed using braided machines. As
used herein, a "braiding machine" is any machine capable of
automatically intertwining three or more tensile elements to form a
braided structure. Braiding machines may generally include spools,
or bobbins, that are moved or passed along various paths on the
machine. As the spools are passed around, tensile strands extending
from the spools toward a center of the machine may converge at a
"braiding point" or braiding area. Braiding machines may be
characterized according to various features including spool control
and spool orientation. In some braiding machines, spools may be
independently controlled so that each spool can travel on a
variable path throughout the braiding process, hereafter referred
to as "independent spool control." Other braiding machines,
however, may lack independent spool control, so that each spool is
constrained to travel along a fixed path around the machine.
Additionally, in some braiding machines, the central axes of each
spool point in a common direction so that the spool axes are all
parallel, hereby referred to as an "axial configuration." In other
braiding machines, the central axis of each spool is oriented
toward the braiding point, for example, radially inward from the
perimeter of the machine toward the braiding point, hereby referred
to as a "radial configuration."
[0060] One type of braiding machine that may be utilized is a
radial braiding machine or radial braider. A radial braiding
machine may lack independent spool control and may therefore be
configured with spools that pass in fixed paths around the
perimeter of the machine. In some cases, a radial braiding machine
may include spools arranged in a radial configuration. For purposes
of clarity, the detailed description and the claims may use the
term "radial braiding machine" to refer to any braiding machine
that lacks independent spool control. The present embodiments could
make use of any of the machines, devices, components, parts,
mechanisms, and/or processes related to a radial braiding machine
as disclosed in Dow et al., U.S. Pat. No. 7,908,956, issued Mar.
22, 2011, and titled "Machine for Alternating Tubular and Flat
Braid Sections," and as disclosed in Richardson, U.S. Pat. No.
5,257,571, issued Nov. 2, 1993, and titled "Maypole Braider Having
a Three Under and Three Over Braiding path," the entirety of each
application being herein incorporated by reference in its entirety.
These applications may be hereafter referred to as the "Radial
Braiding Machine" applications.
[0061] Another type of braiding machine that may be utilized is a
lace braiding machine, also known as a Jacquard or Torchon braiding
machine. In a lace braiding machine, the spools may have
independent spool control. Some lace braiding machines may also
have axially arranged spools. The use of independent spool control
may allow for the creation of braided structures, such as lace
braids, that have an open and complex topology, and may include
various kinds of stitches used in forming intricate braiding
patterns. For purposes of clarity, the detailed description and the
claims may use the term "lace braiding machine" to refer to any
braiding machine that has independent spool control. The present
embodiments could make use of any of the machines, devices,
components, parts, mechanisms, and/or processes related to a lace
braiding machine as disclosed in Ichikawa, EP Patent Number
1486601, published on Dec. 15, 2004, and titled "Torchon Lace
Machine," and as disclosed in Malhere, U.S. Pat. No. 165,941,
issued Jul. 27, 1875, and titled "Lace-Machine," the entirety of
each application being herein incorporated by reference in its
entirety. These applications may be hereafter referred to as the
"Lace Braiding Machine" applications.
[0062] Spools may move in different ways according to the operation
of a braiding machine. In operation, spools that are moved along a
constant path of a braiding machine may be said to undergo
"Non-Jacquard motions," while spools that move along variable paths
of a braiding machine are said to undergo "Jacquard motions." Thus,
as used herein, a lace braiding machine provides means for moving
spools in Jacquard motions, while a radial braiding machine can
only move spools in Non-Jacquard motions.
[0063] FIGS. 12 through 18 illustrate schematically a single
braiding machine that may be used to form different braided
portions with different braided patterns on a last. In some
embodiments, the braiding machine may be similar to the braiding
machine disclosed in Bruce et al., U.S. patent Publication Ser. No.
______, published on ______, and titled, "BRAIDING MACHINE AND
METHOD OF FORMING AN ARTICLE INCORPORATING A MOVING OBJECT" (now
U.S. patent application Ser. No. ______, filed on May 26, 2015)
(currently Attorney Docket Number 51-4506), the disclosure of which
is herein incorporated by reference in its entirety. In other
embodiments, the braiding machine may include a fixed last as
disclosed in Bruce et al., U.S. patent Publication Number, ______,
published on ______, and titled, "BRAIDING MACHINE AND METHOD OF
FORMING AN ARTICLE INCORPORATING BRAIDING MACHINE" (now U.S. patent
application Ser. No. ______, filed on May 26, 2015) (currently
Attorney Docket Number 51-4260), the disclosure of which is herein
incorporated by reference in its entirety.
[0064] In some embodiments, braiding machine 500 may include outer
frame portion 502, as shown in FIG. 12. Outer frame portion 502 may
house a set of spool components or spools 504. Spools 504 may have
tensile elements 506, extending from spools 504, that converge
toward central braiding point 508. In some embodiments, mold or
last 510 may be conveyed through central braiding point 508. In
some embodiments, as last 510 is fed through central braiding point
508, tensile elements 506 may form braided structure 512 on the
surface of last 510.
[0065] Referring to FIG. 13, in some embodiments, braiding machine
500 may generally include spools 504 that follow various
trajectories or paths along outer frame portion 502 on braiding
machine 500. As shown schematically in the enlarged view of FIG.
13, in some embodiments, spools 504 may be held by spindle runners
520. During operation, spindle runners 520 may be rotated and
conveyed to different positions by rotor gears 522. During
operation, rotor gears 522 may rotate in either a clockwise or
counterclockwise direction so that spindle runners 520 with spools
504 pass alone each other thus intertwining tensile elements 506
extending from spools 504. The intertwining of tensile elements 506
results in the forming of braided structure 512 on last 510.
[0066] Some embodiments of a braiding machine may have different
sections where the set of spools follow different trajectories. In
other words, in some embodiments, braiding machine 500 may have
sections where there is independent spool control. In some
embodiments, the braiding machine may have sections that lack
independent spool control. Referring to FIG. 14, in an exemplary
embodiment, braiding machine 500 may have first section 530 where
spools 504 follow a variable path. Accordingly, spools 504 in first
section 530 may undergo a Jacquard motion. Further, braiding
machine 500 may have second section 532 where spools 504 follow a
constant path. With this arrangement, spools 504 may undergo a
Non-Jacquard motion. It is understood that first section 530 and
second section 532 are not meant to convey any specific location on
braiding machine 500. Moreover, first section 530 may be any
location along outer frame portion 502 of the braiding machine
where spools follow a variable path with independent spool control,
whereas second section 532 may be any location along outer frame
portion 502 where spools follow a constant path.
[0067] The enlarged views of FIG. 14 illustrate an exemplary
embodiment of braiding machine 500 where spools 504 follow variable
and constant paths. In some embodiments, spools 504 in first
section 530 of the braiding machine may exhibit independent spool
control via rotor gears 522. During operation, first spool 540 and
second spool 542 are rotated by first rotor gear 550. In contrast,
third spool 544 and fourth spool 546 remain in place as second
rotor gear 552 and third rotor gear 554 remain stationary. Thus,
first spool 540 and second spool 542 are said to undergo a Jacquard
motion. As first spool 540 and second spool 542 rotate, their
respective tensile elements 506 are intertwined forming first braid
portion 580 on last 510. In some embodiments, first braid portion
580 has a Jacquard braid pattern.
[0068] In different embodiments, spools 504 in first section 530
that undergo a Jacquard motion may form additional features
previously mentioned on first braid portion 580. As discussed
above, because spools 504 in first section 530 possess independent
spool control thereby allowing spools 504 to follow variable paths,
first braid portion 580 may include different textures. In
addition, as spools 504 undergo a Jacquard motion in first section
530, a finished edge may be formed on first braid portion 580.
[0069] In some embodiments, braiding machine 500 may have second
section 532 in which spools 504 follow a constant path during
operation. In some embodiments, spools 504 in second section 532
may follow a constant path simultaneously as spools 504 in first
section 530 follow a variable path. As shown, during operation,
fifth spool 560 and sixth spool 562 are rotated by fourth rotor
gear 570. At the same time, seventh spool 564 and eighth spool 566
are rotated by sixth rotor gear 574. Further, fifth rotor gear 572
remains stationary so as not to interfere and contact fifth spool
560, sixth spool 562, seventh spool 564, and eighth spool 566 as
they are rotated. As fifth spool 560, sixth spool 562, seventh
spool 564, and eighth spool 566 are rotated, their respective
tensile elements 506 are intertwined forming second braid portion
582 on last 510. In some embodiments, second braid portion 582 has
a Non-Jacquard braid pattern. Therefore, in an exemplary
embodiment, as spools 504 in first section 530 form first braid
portion 580 simultaneously as spools 504 in second section 532 form
second braid portion 582 on last 510, a seamless braided structure
may be formed. With this arrangement, the seamless braided
structure incorporates first braid portion 580 having a Jacquard
braid pattern with second braid portion 582 having a Non-Jacquard
braid pattern.
[0070] FIGS. 15-18 schematically illustrate another embodiment of
how a first section and a second section of a braiding machine may
form a braided structure on an upper with different and distinct
braid patterns.
[0071] Referring to FIG. 15, in an initial or first configuration
601, spools 605 are configured on spindle runners 606 disposed on
outer portion 608 of braiding machine 600. As spools 605 are
rotated by rotor gears 610, tensile elements 612 are intertwined
forming braided structures 614 on a last at central braiding point
609. During operation, first spool 620, second spool 621, third
spool 622, fourth spool 623, fifth spool 624, sixth spool 625,
seventh spool 626, and eighth spool 627, may be traveling in first
section 618. Spools 605 disposed in first section 618 may exhibit
independent spool control. Accordingly, spools 605 in first section
618 may be associated with following independent or variable paths.
Simultaneously during operation, spools 605 disposed in second
section 628 may lack independent spool control. Accordingly, ninth
spool 630, tenth spool 631, eleventh spool 632, twelfth spool 633,
thirteenth spool 634, fourteenth spool 635, fifteenth spool 636,
and sixteenth spool 637 may each follow a constant path. For
purposes of illustration, first section 618 and second section 628
are distinguished by the shading or non-shading of rotor gears 610.
Further, for purposes of illustration, spools 605 may be shaded
either black or white to show their initial and subsequent relative
positions on braiding machine during operation.
[0072] Referring to FIG. 16, in forming a braided structure with a
Jacquard braid pattern, spools 605 in first section 618, because
they have independent spool control, may, individually, travel in
either a clockwise or counterclockwise direction around the center
of braiding machine 600. Additionally, other spools 605 in first
section 618 may remain static and not rotate. Therefore, as shown,
in second configuration 602, first spool 620 and second spool 621
are rotated by second rotor gear 642 in a clockwise direction, and
third spool 622 and fourth spool 623 are rotated by fifth rotor
gear 648 in a counterclockwise direction. Sixth spool 625 and
seventh spool 626 are rotated in a counterclockwise direction by
ninth rotor gear 656. Further, fifth spool 624 and eighth spool 627
may remain static.
[0073] In some embodiments, as spools 605 in first section 618
follow variable paths, at the same time, spools 605 in second
section 628 each follow a constant path. Therefore, in second
configuration 602, ninth spool 630 and tenth spool 631 are rotated
by thirteenth rotor gear 664, eleventh spool 632 and twelfth spool
633 are rotated by fifteenth rotor gear 668, thirteenth spool 634
and fourteenth spool 635 are rotated by seventeenth rotor gear 672,
and fifteenth spool 636 and sixteenth spool 637 are rotated by
nineteenth rotor gear 676.
[0074] It is to be noted that in second configuration 602, spools
605 in second section 628 are all rotated only in a clockwise
direction around the respective rotor gears 610. However, each
spool in second section 628 is forced to go either in a clockwise
or counterclockwise direction around the center of braiding machine
600. For example, tenth spool 631, twelfth spool 633, fourteenth
spool 635, and sixteenth spool 637 may all travel in a generally
clockwise direction around the center of braiding machine 600,
while ninth spool 630, eleventh spool 632, thirteenth spool 634,
and fifteenth spool 636 may travel in a generally counterclockwise
direction around the center of braiding machine 600. In contrast,
spools 605 in first section 618 may rotate, individually, in either
a clockwise or counterclockwise direction around rotor gears 610,
and around the center of braiding machine 600.
[0075] FIG. 17 further illustrates schematically the independent
spool control of first section 618, and the lack of independent
spool control in second section 628. In some embodiments, after
completing rotations in second configuration 602 (as shown in FIG.
16), spools 605 in first section 618, because of their ability to
move independently without restrictions, may be positioned anywhere
along first section 618. For example, third spool 622, after being
rotated counterclockwise around the center of braiding machine 600
in second configuration 602, is positioned proximal to fifth spool
624 in third configuration 603. However in some other embodiments,
third spool 622 could be rotated clockwise around the center of
braiding machine 600, and therefore could be positioned proximal to
first spool 620 and second spool 621 after rotation. In contrast,
every other spool (e.g., shading or non-shading) in second section
628 is restricted in moving in the same direction, clockwise or
counterclockwise, around the center of braiding machine 600.
[0076] Referring to FIG. 18, because of the independent spool
control in first section 618, spools 605 have different options
regarding their path of travel. In some embodiments, after
rotating, spools 605 in first section 618 may remain in place, may
be further rotated by a different rotor gear, or may be rotated
again with the same rotor gear. Therefore, in fourth configuration
604, third spool 622 after being rotated by fifth rotor gear 648,
may be rotated again, this time by sixth rotor gear 650, or may
remain static. In one embodiment, third spool 622 and fifth spool
624 are rotated in a counterclockwise direction by sixth rotor gear
650. In some embodiments, third spool 622 may eventually traverse
the entire outer portion 608 of the braiding machine so that third
spool 622 may enter second section 628 and undergo a Non-Jacquard
motion. In other words, spools 605 can enter first section 618 and
follow a variable path, and subsequently enter second section 628
and follow a constant path.
[0077] In contrast, during fourth configuration 604, spools 605 in
second section 628, because they do not have independent spool
control, continue on their constant paths in either a clockwise or
counterclockwise direction around the center of braiding machine
600. In one embodiment, spools 605 in second section 628 will
undergo rotation by the next adjacent rotor gear. For example,
ninth spool 630 and twelfth spool 633 will be rotated by fourteenth
rotor gear 666, eleventh spool 632 and fourteenth spool 635 will be
rotated by sixteenth rotor gear 670, thirteenth spool 634 and
sixteenth spool 637 will be rotated by eighteenth rotor gear 674.
In some embodiments, spools 605 in second section 628 may
eventually enter first section 618 and accordingly undergo a
Jacquard motion. In other words, spools 605 can enter second
section 628 and follow a constant path, and subsequently enter
first section 618 and follow a variable path.
[0078] While the embodiments of the figures depict articles having
low collars (e.g., low-top configurations), other embodiments could
have other configurations. In particular, the methods and systems
described herein may be utilized to make a variety of different
article configurations, including articles with higher cuff or
ankle portions. For example, in another embodiment, the systems and
methods discussed herein can be used to form a braided upper with a
cuff that extends up a wearer's leg (i.e., above the ankle). In
another embodiment, the systems and methods discussed herein can be
used to form a braided upper with a cuff that extends to the knee.
In still another embodiment, the systems and methods discussed
herein can be used to form a braided upper with a cuff that extends
above the knee. Thus, such provisions may allow for the
manufacturing of boots comprised of braided structures. In some
cases, articles with long cuffs could be formed by using lasts with
long cuff portions (or leg portions) with a braiding machine (e.g.,
by using a boot last). In such cases, the last could be rotated as
it is moved relative to a braiding point so that a generally round
and narrow cross-section of the last is always presented at the
braiding point.
[0079] While various embodiments of the invention have been
described, the description is intended to be exemplary, rather than
limiting, and it will be apparent to those of ordinary skill in the
art that many more embodiments and implementations are possible
that are within the scope of the invention. Accordingly, the
invention is not to be restricted except in light of the attached
claims and their equivalents. Also, various modifications and
changes may be made within the scope of the attached claims.
* * * * *