Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
  • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
  • H02G3/02—Details
  • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
  • H02G3/0462—Tubings, i.e. having a closed section
  • H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B1/00—Layered products having a non-planar shape
  • B32B1/08—Tubular products
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
  • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
  • B32B5/024—Woven fabric
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
  • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
  • B32B5/026—Knitted fabric
• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D3/00—Woven fabrics characterised by their shape
  • D03D3/02—Tubular fabrics
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2307/00—Properties of the layers or laminate
  • B32B2307/30—Properties of the layers or laminate having particular thermal properties
  • B32B2307/306—Resistant to heat
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2597/00—Tubular articles, e.g. hoses, pipes
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]

Definitions

• This invention relates generally to textile sleeves for protecting elongate members, and more particularly to textile sleeves having a reflective outer surface.
• Tubular textile sleeves are known for use to provide protection to internally contained elongate members, such as a wire harness or cable, for example. It is further known to apply a coating on an outer surface of textile sleeves to provide a heat reflective surface on the sleeve.
• a layer of foil can be disposed about an outer surface of a sleeve, wherein the outer layer of foil provides a reflective barrier to radiant heat, thereby offering protection against heat to the underlying sleeve and the elongate members within the sleeve.
• the foil layer is generally effective to shield the sleeve and contents therein from heat, it is susceptible to tearing or otherwise being damaged by debris or other matter, and further, it limits the degree to which the sleeve can be flexed. In addition, having to apply an outer coating or foil layer complicates the manufacture process, thereby adding cost to the process and end product.
• a tubular textile heat shield for providing protection against heat to elongate members includes a tubular wall of interlaced yarn.
• the interlaced yarn includes polymeric monofilament yarns interlaced with one another.
• the polymeric monofilament yarns contain reflective aluminum particles interspersed therein, as extruded in the yarns, wherein the aluminum particles provide a reflective outer surface to the tubular wall and increase the radiant heat resistance of the yarn.
• the aluminum particle containing polymeric monofilament yarn is heat-set into a tubular configuration.
• the conductivity of the aluminum particle containing polymeric monofilament yarn is substantially unaffected by the interspersed aluminum particles. Accordingly, the conductivity of the aluminum particle containing polymeric monofilament yarn is the same or substantially the same as the polymeric yarn had it not included the aluminum particles.
• a method of constructing a tubular textile heat shield includes providing extruded polymeric monofilament yarns containing reflective aluminum particles interspersed therein; and interlacing the polymeric monofilament yarns with one another and forming a textile tubular wall.
• the method includes heat-setting the aluminum particle containing polymeric monofilament yarns into a tubular configuration.
• the method includes interspersing the aluminum particles having a density within the polymeric monofilament yarns that substantially leaves the conductivity of the polymeric material of the polymeric yarns unaffected along the full length of the yarns.
• Figure 1 is a schematic view of a protective textile sleeve constructed in accordance with one aspect of the invention shown disposed about an elongate member;
• Figure 2 is a schematic view of a protective textile sleeve constructed in accordance with another aspect of the invention shown disposed about an elongate member;
• Figure 3 is a partially broken away view of an extruded monofilament yarn used to construct the sleeve of Figures 1 and 2.
• Figure 1 shows a tubular textile heat shield, also referred to as textile sleeve 10, constructed according to one embodiment of the invention for providing protection against heat to elongate members, such as wires or a wire harness 1 1 , contained within the sleeve 10.
• the textile sleeve 10 has a plurality of yams interlaced with one another, such as via a braiding process, by way of example and without limitation, to form a tubular wall 12.
• the wall 12 illustrated is seamless and circumferentially continuous having a reflective outer surface 14 and an inner surface 16 defining a tubular cavity 18 extending axially along a central longitudinal axis 20 between opposite open ends 22, 24 of the sleeve 10.
• the tubular cavity 18 is sized, as desired in manufacture, for receipt of the elongate members 1 1.
• the reflective outer surface 14 provides the wall 12 with a radiant heat resistance to protect the elongate members 1 1 against unwanted exposed to elevated temperatures.
• the wall 12 can be constructed having any suitable length and diameter and can be braided or otherwise constructed, i.e. woven, knitted, having a desired pattern for the intended application. Accordingly, the wall 12 can be constructed having various structural properties and configurations.
• the wall 12 is constructed of polymeric monofilament yarns 26 interlaced with one another. As shown in Figure 3, the polymeric monofilament yarns 26 contain reflective aluminum particles or powder granules 27 interspersed within the "as extruded" polymeric material 29 of the monofilaments 26, via a masterbatch compounding process.
• the aluminum particles 27 provide the reflective outer surface 14 (by reflective outer surface it is intended to mean the outer exposed surface itself as well a depth immediately beneath the outer surface that contains aluminum particles encapsulated by polymeric material 29 of the monofilament yarn 26) of the tubular wall 12 and increase the radiant heat resistance of the polymeric yarn 26, and the particles are odorless at an ignition temperature of about 600 degrees Celsius. Accordingly, the polymeric yarn 26 is able to withstand increased temperatures from radiant heat sources, such as exhaust systems, for example, than if the reflective aluminum particles were not present.
• the reflective heat resistant properties of the sleeve 10 are automatically provided upon interlacing the yarns 26 with one another. Accordingly, the need for secondary coating or layering operations to provide the sleeve 10 with heat resistance is negated, thereby offering economic efficiencies to the manufacture of the sleeve 10.
• the yarns 26 retain their full flexibility, both individually and relative to one another, given the yarns 26 are not bonded, glued or otherwise attached to one another by a coating material, and thus, the sleeve 10 is able to flex freely in use, and in addition, the weight of the sleeve 10 is minimized.
• FIG 2 a sleeve 1 10 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.
• the sleeve 1 10 is constructed with the same yarn filaments 26 as discussed above, however, the sleeve 1 10 is constructed as a self-wrapping, "cigarette" type sleeve. As such, the sleeve 1 10 has opposite edges 28, 30 extending generally parallel to a central longitudinal axis 120 between opposite ends 122, 124 of the sleeve 1 10. Upon forming a wall 1 14 by interlacing the polymeric yarn 26, the wall 1 14 is heat-set to take on its self-wrapping configuration, such that the opposite edges 28, 30 overlap one another in the absence of an externally applied force.
• a method of constructing a tubular textile heat shield 10, 1 10 includes providing extruded polymeric monofilament yarns 26 containing reflective aluminum particles 27 interspersed therein. Then, interlacing the polymeric monofilament yarns 27 with one another and forming a textile tubular wall 14, 1 14.
• the method further includes heat-setting the aluminum particle containing polymeric monofilament yarns 27 into a self-biasing tubular configuration.
• the method further yet includes interspersing the aluminum particles 27 having a density within the polymeric monofilament yarns 26 that substantially leaves the conductivity of the polymeric material 29 of the polymeric yarns 26 unaffected along the full length of the yarns 26.
• sleeves 10, 1 10 constructed in accordance with the invention are suitable for use in a variety of applications, regardless of the sizes and lengths required. For example, they could be used in automotive, marine, industrial, aeronautical or aerospace applications, or any other application wherein protective sleeves are desired to protect nearby components against heat radiation.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Mechanical Engineering (AREA)
• Details Of Indoor Wiring (AREA)
• Knitting Of Fabric (AREA)
• Thermal Insulation (AREA)
• Artificial Filaments (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (2)

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Family Applications (1)

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Families Citing this family (5)

Family Cites Families (12)

• 2012
  • 2012-06-11 US US13/493,661 patent/US20120315413A1/en not_active Abandoned
  • 2012-06-11 EP EP20120731233 patent/EP2719039B1/en active Active
  • 2012-06-11 CN CN201280038171.2A patent/CN103733454B/zh active Active
  • 2012-06-11 JP JP2014514919A patent/JP6258198B2/ja active Active
  • 2012-06-11 WO PCT/US2012/041824 patent/WO2012170981A2/en not_active Ceased
  • 2012-06-11 KR KR1020147000541A patent/KR101972386B1/ko active Active

Non-Patent Citations (1)

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