U.S. patent application number 16/278330 was filed with the patent office on 2019-06-13 for protective textile sleeve with hot melt fixation, end fray prevention layer and methods of construction and application thereof.
The applicant listed for this patent is FEDERAL-MOGUL POWERTRAIN LLC. Invention is credited to SHOZO FUKUYAMA, HIROKI YAMAGUCHI.
Application Number | 20190181626 16/278330 |
Document ID | / |
Family ID | 52480620 |
Filed Date | 2019-06-13 |
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United States Patent
Application |
20190181626 |
Kind Code |
A1 |
YAMAGUCHI; HIROKI ; et
al. |
June 13, 2019 |
PROTECTIVE TEXTILE SLEEVE WITH HOT MELT FIXATION, END FRAY
PREVENTION LAYER AND METHODS OF CONSTRUCTION AND APPLICATION
THEREOF
Abstract
A protective textile sleeve having enhanced end fray resistance
and being adapted to be bonded to an elongate member extending
therethrough, and method of construction thereof, are provided. The
sleeve has a wall with a cavity bounded by an innermost surface
extending between opposite open ends. A first material, including a
hot melt adhesive material, facilitating bonding the wall to an
outer surface of an elongate member extending therethrough, is
bonded to the wall immediately adjacent the opposite ends, and a
second material, facilitating prevention of end fray of the wall
ends, including an elastomeric material is bonded to the wall
immediately adjacent the opposite ends.
Inventors: |
YAMAGUCHI; HIROKI;
(KANAGAWA, JP) ; FUKUYAMA; SHOZO; (TOKYO,
JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
FEDERAL-MOGUL POWERTRAIN LLC |
SOUTHFIELD |
MI |
US |
|
|
Family ID: |
52480620 |
Appl. No.: |
16/278330 |
Filed: |
February 18, 2019 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
14468997 |
Aug 26, 2014 |
10211612 |
|
|
16278330 |
|
|
|
|
61869842 |
Aug 26, 2013 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
D06N 3/00 20130101; B29C
63/18 20130101; B29C 65/18 20130101; F16L 57/06 20130101; B32B 7/12
20130101; B29C 66/71 20130101; Y10T 428/1334 20150115; H01B 3/50
20130101; B29C 66/1122 20130101; B29C 66/83241 20130101; B32B
2262/0284 20130101; B29C 66/4322 20130101; B29C 66/91421 20130101;
B29C 65/4815 20130101; H02G 3/0481 20130101; B29C 66/53241
20130101; B29C 66/496 20130101; B29C 66/7292 20130101; B29C 66/8614
20130101; B32B 5/026 20130101; B29C 66/81423 20130101; B32B 1/08
20130101; B29C 66/919 20130101; B29C 66/71 20130101; B29K 2021/00
20130101 |
International
Class: |
H02G 3/04 20060101
H02G003/04; D06N 3/00 20060101 D06N003/00; B32B 5/02 20060101
B32B005/02; B32B 7/12 20060101 B32B007/12; B32B 1/08 20060101
B32B001/08; F16L 57/06 20060101 F16L057/06; H01B 3/50 20060101
H01B003/50; B29C 63/18 20060101 B29C063/18 |
Claims
1. A method of constructing a textile protective sleeve, including:
interlacing yarn to form a wall having a cavity bounded by an
innermost surface extending between opposite open ends; bonding a
first material including a hot melt adhesive material to said wall
immediately adjacent the opposite ends; and bonding a second
material including an elastomeric material to said wall immediately
adjacent the opposite ends.
2. The method of claim 1 further including providing the first
material and the second material as a mixture and bonding the
mixture to the wall immediately adjacent the opposite ends.
3. The method of claim 1 further including leaving an intermediate
section of said wall extending between said opposite ends free of
said first and second materials.
4. The method of claim 1 further including forming the wall having
opposite edges adapted to be wrapped in overlapping relation with
one another.
5. The method of claim 1 further including forming the wall having
a circumferentially continuous, seamless wall.
6. The method of claim 2 further including braiding said wall.
7. A method of fixing a textile sleeve to an elongate member
extending through a cavity of the sleeve, wherein the textile
sleeve is formed by a wall of interlaced yarn having an innermost
surface extending between opposite open ends with a hot melt
adhesive material applied to the innermost surface of the wall
adjacent the opposite ends, comprising: extending the elongate
member through the cavity; and manually compressing the innermost
surface of the wail into abutment with the elongate member with a
heated member and causing the hot melt adhesive material to melt
and bond with the elongate member.
8. The method of claim 7 further including compressing the wall
with the heated member adjacent the opposite open ends of the
wall.
9. The method of claim 8 further including leaving an intermediate
section of the wall extending between the opposite ends in unbonded
relation with the elongate member.
10. The method of claim 7 further including applying an elastomeric
material to the wall immediately adjacent the opposite ends.
11. The method of claim 10 further including applying the hot melt
adhesive material and the elastomeric material to the wall as a
mixture.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This U.S. Divisional patent application claims the benefit
of U.S. Utility patent application Ser. No. 14/468,997, filed Aug.
26, 2014, and U.S. Provisional Application Ser. No. 61/869,842,
filed Aug. 26, 2013, both of which are incorporated herein by
reference in their entirety.
BACKGROUND OF THE INVENTION
1. Technical Field
[0002] This invention relates generally to protective textile
sleeves for providing protection to elongate members contained
therein, and more particularly to protective textile sleeves having
a fixation mechanism for fixing the sleeves to an elongate member
extending therethrough.
2. Related Art
[0003] Protective textile sleeves for providing protection to
elongate members extending therethrough are known. Typically, the
protective sleeves are formed having one of a tubular wall having a
circumferentially continuous wall, or a wrappable wall having
opposite lengthwise extending edges configured to be wrapped into
overlapping relation with one another. Regardless of the type of
aforementioned wall, the sleeves are typically fixed to the
elongate member extending therethrough via wrapped tape or
separately applied glue. The application of tape is costly from a
material and labor standpoint, and can also prove to be unsightly
if not applied neatly. Further, the externally applied tape can
become damaged, thereby affecting its ability to reliably fix the
sleeve to the elongate member. The application of separately
applied glue is also costly from a material and labor standpoint,
and can further add cost from the need to provide drying time for
the glue. In addition, the glue can prove messy in application,
thereby leading to further cost associated with the necessary
clean-up thereof.
SUMMARY OF THE INVENTION
[0004] In accordance with one aspect of the invention, a protective
textile sleeve provided. The sleeve has a wall of interlaced yarn
having a cavity bounded by an inner surface extending between
opposite open ends. A first material, facilitating bonding the wall
to an outer surface of an elongate member extending therethrough,
including a hot melt adhesive material is bonded to the wall
immediately adjacent the opposite ends, and a second material,
facilitating prevention of end fray of the wall ends, including an
elastomeric material is bonded to the wall immediately adjacent the
opposite ends.
[0005] In accordance with another aspect of the invention, the
first material and the second material can be provided as a mixture
bonded to the wall immediately adjacent the opposite ends.
[0006] In accordance with another aspect of the invention, an
intermediate section of the wall extending between the opposite
ends can remain free of the first and second materials.
[0007] In accordance with another aspect of the invention, the wall
can be a wrappable wall having opposite edges adapted to be wrapped
in overlapping relation with one another.
[0008] In accordance with another aspect of the invention, the wall
can be a circumferentially continuous, seamless wall.
[0009] In accordance with another aspect of the invention, a method
of constructing a textile protective sleeve is provided. The method
includes interlacing yarn to form a wall having a cavity bounded by
an innermost surface extending between opposite open ends. Further,
bonding a first material including a hot melt adhesive material to
the wall immediately adjacent the opposite ends, and further yet,
bonding a second material including an elastomeric material to the
wall immediately adjacent the opposite ends.
[0010] In accordance with another aspect of the invention, the
method can further include applying the first and second materials
as a mixture to the innermost surface.
[0011] In accordance with another aspect of the invention, the
method can further include leaving an intermediate section of the
wall extending between the opposite ends free of the first and
second materials.
[0012] In accordance with another aspect of the invention, the
method can further include forming the wall having opposite edges
adapted to be wrapped in overlapping relation with one another.
[0013] In accordance with another aspect of the invention, the
method can further include forming the wall having a
circumferentially continuous, seamless wall.
[0014] In accordance with another aspect of the invention, the
method can further include applying the mixture on an outer surface
of the wall.
[0015] In accordance with another aspect of the invention, a method
of fixing a textile sleeve, having a wall of interlaced yarn with a
cavity bounded by an inner surface extending between opposite open
ends with a hot melt adhesive material applied to the inner
surface, about an elongate member is provided. The method includes
extending the elongate member through the cavity; compressing the
wall into abutment with the elongate member with a heated member
and causing the hot melt adhesive material to bond with the
elongate member.
[0016] In accordance with another aspect of the invention, the
method can further include compressing the wall with the heated
member adjacent the opposite open ends of the wall.
[0017] In accordance with another aspect of the invention, the
method can further include leaving an intermediate section of the
wall extending between the opposite ends in unbonded relation with
the elongate member.
[0018] In accordance with another aspect of the invention, the
method can further include applying an elastomeric material to the
innermost surface in a mixture with the hot melt adhesive
material.
BRIEF DESCRIPTION OF THE DRAWINGS
[0019] These and other aspects, features and advantages of the
present invention will become more readily appreciated when
considered in connection with the following detailed description of
presently preferred embodiments and best mode, appended claims and
accompanying drawings, in which:
[0020] FIG. 1 is a perspective view of a textile sleeve constructed
in accordance with one aspect of the invention fixed to an elongate
member extending therethrough;
[0021] FIG. 2A is a perspective view of a wall of the textile
sleeve constructed in accordance with one aspect of the
invention;
[0022] FIG. 2B is a perspective view of a wall of the textile
sleeve constructed in accordance with another aspect of the
invention;
[0023] FIG. 2C is a perspective view of a wall of the textile
sleeve constructed in accordance with yet another aspect of the
invention;
[0024] FIG. 2D is a perspective view of a wall of the textile
sleeve constructed in accordance with yet another aspect of the
invention;
[0025] FIG. 3 illustrates a method of wrapping the wall of the
sleeve and fixing the wall of the sleeve to an elongate member
extending therethrough;
[0026] FIG. 4A is a perspective view of a textile sleeve
constructed in accordance with another aspect of the invention
fixed to an elongate member extending therethrough; and
[0027] FIG. 4B is a perspective view of a textile sleeve
constructed in accordance with yet another aspect of the invention
fixed to an elongate member extending therethrough.
DETAILED DESCRIPTION OF PRESENTLY PREFERRED EMBODIMENTS
[0028] Referring in more detail to the drawings, FIG. 1 illustrates
a textile sleeve constructed in accordance with one aspect of the
invention, shown as a wrappable sleeve, by way of example and
without limitation, and referred to hereafter as sleeve 10. The
sleeve 10 has a wrappable wall 12, such as a self-wrapping elongate
wall that automatically curls into its wrapped configuration absent
some externally applied force, for routing and protecting elongate
members 14, such as a cable, wires or a wire harness, by way of
example and without limitation. The elongate wall 12 has opposite
edges 16, 17 extending generally parallel to a central,
longitudinal axis 18 between opposite open ends 19, 20, wherein the
edges 16, 17 are preferably biased into overlapping relation with
one another in "cigarette wrapped" fashion to fully enclose the
elongate member(s) 14 within a central cavity C of the sleeve 10.
The cavity C is bounded by an innermost surface 21 of the wall 12
and is readily accessible along the full length of the longitudinal
axis 18 so that the elongate member(s) 14 can be readily disposed
radially into the cavity C, and conversely, removed from the cavity
C, such as during service. To fix the wall 12 to the elongate
member 14, thereby preventing relative rotational and axial
movement therebetween, and further, to facilitate preventing end
fray of the opposite ends 19, 20 the wall 12, such as during
cutting in manufacture and also during in use, the wall 12 has a
coating 22 formed from a mixture of a first material and a
different second material bonded to the innermost surface 21 of the
wall 12 immediately adjacent the opposite ends 19, 20. The first
material includes a hot melt adhesive material to facilitate
bonding the wall 12 to an outer surface of the elongate member 14
and the second material includes an elastomeric material to
facilitate preventing end fray of the opposite ends 19, 20.
[0029] Depending on the application needs, the wall 12 can be
constructed having any suitable size, including length and
diameter. Further, the wall 12 can be formed of interlaced yarn
using any desired interlacing process, such as braiding, weaving or
knitting. If the wall 12 is formed as a self-wrapping wall, at
least some of the weft-wise, circumferentially extending yarn,
whether multifilament and/or monofilament, can be provided as any
suitable heat-settable polymeric material, such as polyphenylene
sulfide (PPS) or polyethyleneterephthalate (PET), for example.
[0030] To apply the mixture of the coating 22 to the wall 12, the
mixture can be first formed as a pre-formed solid sheet of the
coating 22 fabricated from the mixture, whereupon the solid sheet
of the coating 22 can be laminated to the innermost surface 21 of
the wall 12. Otherwise, the coating 22 of the mixture can be
applied as a liquid to at least the innermost surface 21 (FIG. 2A),
or about the entirety of the wall 12 (FIG. 2B), such as via a
spraying or dipping process, by way of example and without
limitation. Regardless of how the mixture of the coating 22 is
bonded to the wall 12, at least the innermost surface 21 is coated,
thereby providing the ability to bond the hot melt adhesive
material of the mixture M to the outer surface of the elongate
member 14. As such, it should he understood that the mixture can he
applied, whether a pre-formed sheet or liquid, to cover the
entirety of the innermost surface 21, and also, if desired, the
entirety of the wall 12 including the outermost surface, thereby
extending from one edge 16 to the other edge 17, and from one end
19 of the wall 12 to an opposite end 20 of the wall 12. Otherwise,
as shown in FIG. 2C, the mixture can be applied, whether as a
preformed solid sheet or liquid, to only the end regions ER of the
wall 12 extending immediately adjacent the opposite ends 19, 20,
thereby forming an intermediate region IR of the wall extending
between the end regions ER, and thus, the opposite ends 19, 20,
that is free or void of the coating 22, thereby saving expense on
the cost of the coating, as well as maintaining maximum flexibility
of the sleeve 10 within the intermediate region IR.
[0031] Upon bonding the coating 22 to the wall 12, the wall 12 can
be heat-set into a self-wrapping wall and/or wrapped about the
elongate member 14. Otherwise, it should be recognized that the
wall 12 can first be heat-set into a self-wrapping wall and then
the wall 12 can he sprayed, dipped or otherwise coated with mixture
of coating material to arrive at one of the embodiments shown in
FIGS. 2B (entire wall coated) and 2D (only end regions ER coated).
Then, the elongate member 14 can he disposed within the cavity C of
the sleeve 10, and as shown in FIG. 3, a compressive force F can
then be applied to the wall 12 via a heated compressive member 24,
such as a clamp or otherwise, wherein the compressive member 24 can
be heated between about 200-250 degrees C., by way of example, to
bring the innermost surface 21 and the hot melt adhesive material
within the coating 22 into abutment with the outer surface of the
elongate member 14, wherein the heated compressive member 24 causes
the hot melt adhesive material to at least partially melt and bond
to the outer surface of the elongate member 14. Accordingly, the
wall 12 is fixed against relative movement with the elongate member
14 and is further fixed in its wrapped configuration. It should be
recognized that the heated compressive member 24 can be compressed
at a plurality of locations along the length of the sleeve 10, as
desired, and preferably at least adjacent opposite ends 19, 20 of
the sleeve 10 to ensure the ends 19, 20 are bonded with the
elongate member 14.
[0032] In FIGS. 4A and 4B, a sleeve 110 constructed in accordance
with another aspect of the invention is shown, wherein the same
reference numerals, offset by a factor of 100, are used to identify
like features. Rather than the sleeve 110 having a wrappable a wall
112 of the sleeve 110 is constructed as a circumferentially
continuous, seamless wall 112 using one of the aforementioned
processes discussed above, such as, braiding, weaving or knitting.
With the wall 112 being circumferentially continuous, a mixture of
the material forming a coating 122 is not applied as a pre-formed
laminated sheet to an innermost surface, but rather, the mixture of
the first and second materials is applied as a liquid to an
innermost surface 121, such as by dipping or spraying the wall 112
in or with the mixture including hot melt adhesive material, such
as a hot melt powder material added to an elastomeric material, by
way of example and without limitation. Of course, other application
methods for applying the liquid mixture to the innermost surface
121 can be used, such as spreading and coating the mixture material
as a paste-like substance via any suitable spreading mechanism. In
addition to the hot melt adhesive powder bonding the wall 112 to
the elongate member 114, the elastomer material within the mixture,
upon solidifying the coating 122 on the wall 112, at least about
the end regions of the wall 112, functions to prevent end fray of
the yarn material of the wall 112. As shown in FIG. 4A, application
of the mixture to the wall 112 can include dipping opposite ends
119, 120 of the wall 112 in a melted solution of the mixture and
then allowing the dipped ends 119, 120 to dry and solidify, thereby
forming the coating 122 on the end regions ER of the sleeve 110,
with an intermediate region IR remaining free of the coating. Of
course, if the ends 119, 120 are dipped, then an outer surface of
the wall 112 is also coated, which further contributes to the
prevention of end fray. Of course, if desired, as shown in FIG. 4B,
the entire wall 112 could be dipped in the mixture thereby applying
the coating 122 over the entire innermost and outer surfaces of the
wall 112.
[0033] As with the previous embodiment, upon applying and bonding
the mixture to the wall 112 to form the desired coating 122, the
elongate member 114 is disposed within a cavity C of the wall 112,
and then, a compressive force F is applied to the wall 112 via a
heated compressive member 24, such as between about 150-250 degrees
C. to at least partially melt and bond the adhesive material within
the mixture to the outer surface of the elongate member 114.
Accordingly, the wall 112 is fixed against relative movement with
the elongate member 114, and the ends 119 are 120 are protected
against end fray via the elastomeric material within the coating
122.
[0034] Many modifications and variations of the present invention
are possible in light of the above teachings. It is, therefore, to
be understood that the invention may he practiced otherwise than as
specifically described, and that the scope of the invention is
defined by any ultimately allowed claims.
* * * * *