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US20250107587A1 - Suspension bands having energy absorbing properties - Google Patents

Suspension bands having energy absorbing properties Download PDF

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Publication number
US20250107587A1
US20250107587A1 US18/791,893 US202418791893A US2025107587A1 US 20250107587 A1 US20250107587 A1 US 20250107587A1 US 202418791893 A US202418791893 A US 202418791893A US 2025107587 A1 US2025107587 A1 US 2025107587A1
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US
United States
Prior art keywords
inlay
structures
knitted
suspension band
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US18/791,893
Inventor
Yolanda Wang
Anncy Zhou
Gary GU
Huan Tang
Gary Cao
Linan Zhao
Xiang He
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell Safety Products USA Inc
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Honeywell Safety Products USA Inc
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Filing date
Publication date
Application filed by Honeywell Safety Products USA Inc filed Critical Honeywell Safety Products USA Inc
Assigned to HONEYWELL SAFETY PRODUCTS USA, INC. reassignment HONEYWELL SAFETY PRODUCTS USA, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ZHOU, ANNCY, CAO, GARY, GU, GARY, HE, XIANG, TANG, HUAN, WANG, YOLANDA, ZHAO, LINAN
Publication of US20250107587A1 publication Critical patent/US20250107587A1/en
Assigned to JPMORGAN CHASE BANK, N.A. reassignment JPMORGAN CHASE BANK, N.A. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HEAROS, LLC, HONEYWELL SAFETY PRODUCTS USA, INC., MORNING PRIDE MANUFACTURING L.L.C., PIP USA MANUFACTURING, INC., PROTECTIVE INDUSTRIAL PRODUCTS, INC., REFLECTIVE APPAREL FACTORY, INC., SALISBURY ELECTRICAL SAFETY L.L.C., WEST CHESTER HOLDINGS, LLC, WORLDWIDE PROTECTIVE PRODUCTS, LLC
Assigned to GOLDMAN SACHS BANK USA reassignment GOLDMAN SACHS BANK USA SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HEAROS, LLC, HONEYWELL SAFETY PRODUCTS USA, INC., MORNING PRIDE MANUFACTURING L.L.C., PIP USA MANUFACTURING, INC., PROTECTIVE INDUSTRIAL PRODUCTS, INC., REFLECTIVE APPAREL FACTORY, INC., SALISBURY ELECTRICAL SAFETY L.L.C., WEST CHESTER HOLDINGS, LLC, WORLDWIDE PROTECTIVE PRODUCTS, LLC
Pending legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B1/00Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10Patterned fabrics or articles
    • D04B1/12Patterned fabrics or articles characterised by thread material
    • D04B1/123Patterned fabrics or articles characterised by thread material with laid-in unlooped yarn, e.g. fleece fabrics
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B7/00Flat-bed knitting machines with independently-movable needles
    • D04B7/16Flat-bed knitting machines with independently-movable needles for producing fabrics consisting of, or incorporating, elastic threads
    • AHUMAN NECESSITIES
    • A42HEADWEAR
    • A42BHATS; HEAD COVERINGS
    • A42B3/00Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04Parts, details or accessories of helmets
    • A42B3/10Linings
    • A42B3/14Suspension devices
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B1/00Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10Patterned fabrics or articles
    • D04B1/102Patterned fabrics or articles with stitch pattern
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B1/00Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/22Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00Details of fabric structure established in the fabric forming process
    • D10B2403/02Cross-sectional features
    • D10B2403/024Fabric incorporating additional compounds
    • D10B2403/0241Fabric incorporating additional compounds enhancing mechanical properties
    • D10B2403/02411Fabric incorporating additional compounds enhancing mechanical properties with a single array of unbent yarn, e.g. unidirectional reinforcement fabrics
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00Details of fabric structure established in the fabric forming process
    • D10B2403/03Shape features
    • D10B2403/031Narrow fabric of constant width
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2501/00Wearing apparel
    • D10B2501/04Outerwear; Protective garments
    • D10B2501/042Headwear

Definitions

  • the present disclosure relates generally to suspension bands.
  • it relates to the suspension bands having energy absorbing properties.
  • Suspension bands or straps for use in helmet anti-concussion cradles or harness suspensions may have a webbing structure with fabric straps weaved by polyester, nylon yarns, or blended synthetic yarns by interweaving in weft and warp directions.
  • the Applicants have identified various technical problems with existing suspension bands or straps.
  • embodiments of the present disclosure provide suspension bands, helmet systems, and/or the like.
  • a suspension band including a plurality of knitted loop structures; and a plurality of knitted inlay structures, wherein the plurality of knitted inlay structures is inserted as a weft inlay stitch on, beneath, or within the plurality of knitted loop structures.
  • the suspension band includes one or more inlay sections and a reinforcement section, and wherein a greater portion of the plurality of knitted loop structures are disposed on, beneath, or within the reinforcement section than are disposed on, beneath, or within the one or more inlay sections.
  • the one or more inlay sections include a first inlay section and a second inlay section, wherein the first inlay section is disposed on a first side of the reinforcement section and wherein the second inlay section is disposed on a second side of the reinforcement section.
  • the suspension band has a length ranging from 335 mm to 390 mm, wherein the one or more inlay sections include a width ranging from 20 mm to 24 mm and a thickness ranging from 1.3 mm to 1.7 mm, and wherein the one or more reinforcement sections include a width ranging from 23 mm to 27 mm and a thickness ranging from 2 mm to 2.4 mm.
  • the plurality of knitted loop structures and the plurality of knitted inlay structures are yarn.
  • one or more knitted loop structures of the plurality of knitted loop structures include polyester DTY and wherein one or more knitted inlay structures of the plurality of knitted inlay structures include liquid crystal polymer (LCP).
  • LCP liquid crystal polymer
  • the yarn size of one or more knitted loop structures of the plurality of knitted loop structures is 300D and the yarn size of one or more knitted inlay structures is 1000D.
  • the yarn tensile strength of one or more knitted loop structures of the plurality of knitted loop structures is 3.52 cN/dtex and the yarn tensile strength of one or more knitted inlay structures is 2.1N/tex.
  • the suspension band includes a plurality of elongation structures, wherein one or more elongation structures of the plurality of elongation structures are inserted as a weft inlay stitch on, beneath, or within the plurality of knitted loop structures and disposed adjacent to one or more inlay structures of the plurality of inlay structures.
  • the one or more elongation structures of the plurality of elongation structures include elongation yarn.
  • the suspension band is integrated with a helmet, a fall protection harness, or a rope.
  • a helmet system including a shell configured to protect the head of a wearer; a harness disposed on, beneath, or within the shell; and a plurality of suspension bands, wherein at least one suspension band of the plurality of suspension bands includes a plurality of knitted loop structures; and a plurality of knitted inlay structures, wherein the plurality of knitted inlay structures is inserted as a weft inlay stitch on, beneath, or within the plurality of knitted loop structures, wherein the suspension band defines one or more inlay sections, and wherein the suspension ban defines a reinforcement section, wherein the harness is operably engaged with the plurality of suspension bands.
  • the suspension band includes one or more inlay sections and a reinforcement section, and wherein a greater portion of reinforcement structures are disposed on, beneath, or within the reinforcement section than are disposed on, beneath, or within the one or more inlay sections.
  • the one or more inlay sections include a first inlay section and a second inlay section, wherein the first inlay section is disposed on a first side of the reinforcement section and wherein the second inlay section is disposed on a second side of the reinforcement section.
  • the suspension band includes a length ranging from 335 mm to 390 mm, wherein the one or more inlay sections include a width ranging from 20 mm to 24 mm and a thickness ranging from 1.3 mm to 1.7 mm, and wherein the one or more reinforcement sections include a width ranging from 23 mm to 27 mm and a thickness ranging from 2 mm to 2.4 mm.
  • the plurality of knitted loop structures and the plurality of knitted inlay structures are yarn.
  • one or more knitted loop structures of the plurality of knitted loop structures include polyester DTY and wherein one or more knitted inlay structures of the plurality of knitted inlay structures include liquid crystal polymer (LCP).
  • LCP liquid crystal polymer
  • the yarn size of one or more knitted loop structures of the plurality of knitted loop structures is 300D and the yarn size of one or more knitted inlay structures is 1000D.
  • the yarn tensile strength of one or more knitted loop structures of the plurality of knitted loop structures is 3.52 cN/dtex and the yarn tensile strength of one or more knitted inlay structures is 2.1N/tex.
  • the helmet system further includes a plurality of elongation structures, wherein one or more elongation structures of the plurality of elongation structures are inserted as a weft inlay stitch on, beneath, or within the plurality of knitted loop structures and disposed adjacent to one or more inlay structures of the plurality of inlay structures.
  • FIG. 1 A shows a top plan view of an example suspension band in accordance with various embodiments of the present disclosure
  • FIG. 1 B shows a detail view of an example suspension band in accordance with various embodiments of the present disclosure
  • FIG. 1 C shows a flat knitted strap structure of an example inlay section of an example suspension band in accordance with various embodiments of the present disclosure
  • FIG. 1 D shows a flat knitted strap structure of an example reinforcement section of an example suspension band in accordance with various embodiments of the present disclosure
  • FIG. 2 A- 2 C show top plan views of example weaving patterns for example suspension bands in accordance with various embodiments of the present disclosure
  • FIG. 3 A shows a top plan view of example suspension bands in accordance with various embodiments of the present disclosure
  • FIG. 3 B shows a top angled view of an example helmet in accordance with various embodiments of the present disclosure
  • FIGS. 4 A and 4 B show tensile strength of example suspension bands in accordance with various embodiments of the present disclosure
  • FIGS. 5 A- 5 C show example test data of example suspension bands and suspension helmets in accordance with various embodiments of the present disclosure.
  • FIGS. 6 A- 6 C show example test data of example suspension bands and suspension helmets in accordance with various embodiments of the present disclosure.
  • a suspension band having a knitted structure with a plurality of knitted loop structures and a plurality of knitted inlay structures, wherein the suspension band is divided into one or more inlay sections and one or more reinforcement sections.
  • Textile structure can generally divide into three categories which are woven, knitting, nonwoven. The knitted category also divided into flat knitted, warp knitted, and circular knitted, which may produce differing loop structures.
  • different types of knitted structure rely on different knitting machines, while the same knitted structure cannot be knitted by different machines.
  • the orientation, number, and material of the inlay structures in the suspension band's knitted structure may be varied and thereby affect the tension strength and energy absorption properties of the suspension band.
  • one or more suspension bands may be used in various applications, including (but not limited to) a helmet, webbing for a fall protection harness, a rope, and/or the like.
  • FIG. 1 A shows a top plan view of an example suspension band 100 , according to various embodiments.
  • the suspension band 100 includes inlay sections 102 A, 102 B (note that similar descriptions may apply to sections 102 A and 102 B unless otherwise noted).
  • a detail view of an example inlay section 102 A is shown in FIG. 1 B and a flat knitted structure of an example inlay section 102 A is shown in FIG. 1 C .
  • the suspension band 100 includes at least one reinforcement section 104 .
  • a flat knitted structure of an example reinforcement section 104 is shown in FIG. 1 D .
  • the suspension band 100 may be created using one or more flat-knitting machines, including (but not limited to) STOLL ADF, CIXIN CX2, SHIMA SEIKI, and/or the like.
  • the suspension band 100 may be incorporated into one or more applications, including but not limited to a helmet (as will be discussed later in this disclosure), a fall protection harness, a rope, and/or the like.
  • the inlay section 102 A includes one or more inlay structures 106 A, 106 B, 106 C (note that similar descriptions may apply across the one or more inlay structures 106 A-C unless otherwise noted) and a loop structure 108 .
  • the inlay structures 106 A-C are substantially straight, knitted structures disposed perpendicularly to one or more loops of the loop structure 108 .
  • the inlay structures 106 A-C are yarn structures having energy-absorbing properties configured to reinforce and/or strengthen the tension strength of the suspension band 100 . Still referring to FIG.
  • the loop structure 108 is a weft knitted structure having a lateral and longitudinal stretch formed into a plurality of loops distributed into a plurality of rows.
  • the loop structure 108 may be a continuous thread, wherein the loops of the plurality of loops are interlocked.
  • the loop structure 108 may be composed of polyester yarn having a yarn size of 600D and a tensile strength of 3.52 cN/dtex.
  • the inlay structures 106 A-C are disposed on, beneath, or within the loop structure 108 . As shown in at least FIG. 1 B , the inlay structures 106 A-C are stitched through the loops of the loop structure 108 . In at least the depicted embodiment, the inlay structures 106 A-C are interwoven (i.e., inlaid) within the loop structure 108 . In some embodiments, the inlay structures 106 A-C may be composed of yarn and may be liquid crystal polymer (LCP) yarn.
  • LCP liquid crystal polymer
  • the inlay structures 106 A-C may have a low elongation ratio (e.g., ⁇ 3%).
  • the inlay structures 106 A-C may be inlay yarn material based on polyester (drawn textured yarn, full drawn yarn, and/or the like), modified polyester, biobased PA56, PA66, or liquid crystal polymer (LCP), high-performance polyethylene (HPPE), high density polyethylene (HDPE), low density polyethylene (LDPE), and/or the like.
  • the inlay structures 106 A-C may have a yarn size (D) of 1000D and a yarn tensile strength of 2.1 N/TEX, 3.1 N/Tex, or 2 N/Tex.
  • the loop structure 108 may be loop yarn material including (but not limited to) PA6, PA56, PA66, polyester (which may be modified with, for example, PA6, PA66, or blended with cotton), CVC (80/20, 60/40, or 55/45), and/or TC (80/20, 60/40, 65/35).
  • the inlay sections 102 A, 102 B may be flat knitted structures, as may the reinforcement section 104 , as shown in at least FIG. 1 D .
  • the arrows will be understood as being for illustrative purposes, to show the steps of knitting the inlay sections 102 A-B (in FIG. 1 C ) and the reinforcement section 104 (in FIG. 1 D ); that is, the knitting steps follow the arrows.
  • FIG. 1 C shows the knitting process of the inlay sections 102 A-B, with the first line having a single bed needle loop to be knitted and the second line having a double bed needle loop to be knitted and insert the inlay yarn.
  • FIG. 1 C shows the knitting process of the inlay sections 102 A-B, with the first line having a single bed needle loop to be knitted and the second line having a double bed needle loop to be knitted and insert the inlay yarn.
  • FIGS. 1 C-D shows the knitting process of the reinforcement section 104 , with double beds needle loops and inlay structures 106 A inserted with each loop line or every other line or every second line.
  • the reinforcement section 104 may include a greater number of loop structures 108 , in addition to the inlay structure 106 A (or 106 B, 106 C).
  • the loop structures 108 may be knitted such that the inlay structures 106 A-C are disposed between the loops of the loop structures 108 .
  • alternate structures 200 A, 200 B, 200 C are shown having a plurality of inlay structures 202 A-E and a loop structure 204 . It will be understood that the alternate structures 200 A-C are alternative arrangements for the previously-described inlay sections 102 A-B, and it will further be understood that these alternate structures 200 A-C are not exhaustive.
  • the inlay structures 202 A-E are interknit on, beneath, or within the loop structure 204 . It will be understood that the inlay structures 202 A-E may be described similarly to the inlay structures 106 A-C, as previously described in the specification, unless explicitly stated otherwise. It will also be understood that the loop structure 204 may be described similarly to the loop structure 108 , as previously described in the specification, unless explicitly stated otherwise.
  • inlay structures 202 A-E there are five inlay structures 202 A-E, two more than the inlay structures 106 A-C shown and described with respect to at least FIGS. 1 A-B .
  • increasing the number of inlay structures 202 A-E may increase one or more mechanical properties (e.g., tension strength) of the suspension bands 200 A-C.
  • the alternate structures 200 B and/or 200 C may include a plurality of elongation structures 206 A-E.
  • the elongation structures 206 A-E may be paired with and/or laid adjacent to the plurality of inlay structures 202 A-E.
  • the elongation structures 206 A-E may be interknit and/or inlaid with the loop structure 204 , as the plurality of inlay structures 202 A-E are.
  • the elongation structures 206 A-E may be configured to increase the tension strength of the suspension bands ( 200 B, 200 C).
  • the elongation structures 206 A-E may be knitted yarn.
  • the elongation structures 206 A-E may be composed of liquid crystal elastomer (LCE), high-performance polyethylene (HPPE), and/or the like.
  • FIGS. 3 A and 3 B show top plan and top angled views, respectively, of example helmet system 300 .
  • the helmet system 300 may be used to protect the head of a user from trauma (e.g., being struck on the head by a falling object).
  • the helmet system 300 may be used in a variety of activities, including (but not limited to) climbing, mining, utility repair/maintenance, and/or construction.
  • the helmet system 300 includes a plurality of suspension bands 302 A, 302 B, 302 C. In the embodiments shown and described in FIGS. 3 A- 3 B , the suspension bands 302 A-C are described similarly to the suspension band 100 shown and described with respect to FIGS. 1 A-D .
  • the suspension bands 302 A-C may include one of the alternative suspension bands 200 A-C, described and shown with respect to at least FIGS. 2 A-C .
  • the suspension bands 302 A-C may vary in length, width, and/or thickness between each other. For example, one suspension band (e.g., 302 B) may be shorter than the other suspension bands (e.g., 302 A and 302 C).
  • the helmet system 300 may include a shell 312 .
  • the shell 312 may be a dome-shaped structure designed to fit around the head of a user.
  • the shell may be composed of a “hard,” substantially rigid material designed to absorb and/or deflect one or more blows.
  • the shell 312 may be composed of polycarbonate and/or fiberglass of varying durability and thickness.
  • the helmet system 300 may include a harness 304 .
  • one or more of the suspension bands 302 A-C may be disposed through and operatively engaged with the harness 304 .
  • the harness 304 may be a substantially circular structure having one or more slots for receiving the plurality of suspension bands 302 A-C.
  • the suspension bands 302 A-C as shown in at least FIG. 3 B , are disposed through the harness 304 and attached to one or more slots of the shell 312 of the helmet system 300 .
  • the helmet system 300 may include a frame 306 .
  • the frame 306 may be disposed around a perimeter of the helmet shell 312 .
  • the frame 306 may provide stability to the helmet system 300 .
  • the helmet system 300 may include one or more cushion structures 308 A, 308 B disposed on, beneath, or within the frame 306 .
  • the one or more cushion structures 308 A, B may be “soft” material intended to make a user's head comfortable when wearing the helmet system 300 .
  • the helmet system 300 may include one or more straps 310 A, 310 B.
  • the one or more straps 310 A-B may include a clasp or buckle and may be configured to secure the helmet system 300 to a user's head.
  • the one or more straps 310 A-B may be adjusted to increase or decrease the “tightness” of the helmet system 300 and adjust the “fit” of the helmet system 300 around a user's head.
  • FIGS. 4 A and 4 B show example test data for tests run using an example suspension band 100 and an example helmet system 300 .
  • the test was performed using an INSTROM 5967 test machine and the ISO 13934 test standard.
  • the tensile speed was 100 mm/min, the temperature was 26 degrees Celsius (+/ ⁇ 3 degrees), and the test humidity was 85%.
  • FIG. 4 A shows the test results for a helmet 300 using example suspension bands 100 having 6 pieces of inlay yarn (i.e., 6 inlay structures, as previously described), and FIG. 4 B shows the results for an example suspension band 100 having 8 pieces of inlay yarn (i.e., 8 inlay structures, as previously described).
  • the results charted in FIG. 4 A show a helmet having a maximum load (in Newtons) of approximately 800 and a maximum load extension of 68 mm (+/ ⁇ 5 mm)
  • FIG. 4 B shows a helmet having a maximum load (in Newtons) or approximately 1000 and a maximum load extension of 62 mm (+/ ⁇ 5 mm).
  • there is a general trend observed of the load increasing steadily as the suspension band continues to extend, and the general trend is broken when the suspension band snaps under the load.
  • FIGS. 5 A- 5 C show example test data run using an example suspension band 100 and an example helmet system 300 .
  • the test was performed using a load cell device.
  • FIG. 5 A shows example test data at ⁇ 30 degrees Celsius
  • FIG. 5 B shows example test data at 50 degrees Celsius
  • FIG. 5 C shows example test data at 20 degrees Celsius and shows test data for a helmet system 300 that was in water during the test.
  • those temperatures refer to the test conditions at which sample helmets were kept to precondition (from 4-24 hours) the helmet prior to the tests; the preconditioned helmets underwent the load under atmospheric pressure conditions at 22° C. ⁇ 5° C. and a humidity of 55% ⁇ 30%
  • tests were run six times (32 #1 through 32 #6) and a mean of the results was calculated and shown on the example helmet system 300 .
  • Tests were also run two times (SFH-1 to SFH-2) and a mean of the results was calculated and shown of an example comparison helmet and suspension band. As shown, the example helmet system 300 reached a mean of 2590N, and the comparison reached a mean of 3416N.
  • tests were run six times (32 #1 through 32 #6) and a mean of the results was calculated and shown on the example helmet system 300 .
  • Tests were also run eight times (SFH-1 to SFH-8) and a mean of the results was calculated and shown of an example comparison helmet and suspension band. As shown, the example helmet system 300 reached a mean of 2440N, and the comparison reached a mean of 3220N.
  • tests were run six times (32 #1 through 32 #6) and a mean of the results was calculated and shown on the example helmet system 300 .
  • Tests were also run two times (SFH-1 to SFH-2) and a mean of the results was calculated and shown of an example comparison helmet and suspension band. As shown, the example helmet system 300 reached a mean of 2533N, and the comparison reached a mean of 2991N.
  • FIGS. 6 A- 6 C show example test data run using an example suspension band 100 and an example helmet system 300 .
  • the test was performed using ANSI Z89.1 peak force at 50 degrees Celsius (for FIG. 6 A ), at ⁇ 30 degrees Celsius ( FIG. 6 B ), and at 20 degrees Celsius ( FIG. 6 C ).
  • the 50° C. test conditions need to keep the helmet in the pre-condition cabinet at least 2 hours
  • ⁇ 30° C. test conditions need to keep the helmet in the pre-condition cabinet at least 4 hours
  • 20° C. test conditions need to keep the helmet in the pre-condition cabinet at least 2 hours
  • hot and low temperature conditioned samples were tested for impact test within 30 seconds after their removal from the condition environment, and the “wet” sample was tested within 90 seconds from their removal of the water bath.
  • tests were run nine times, three for three different groups of the example suspension band 100 (#32, #35, and #36 and a mean was found for each band. Tests were also run four times (FSH-1 to FSH-4) and a mean of the results was calculated and shown of an example comparison helmet and suspension band. As shown, the example helmet system 300 reached a mean of 2170N with #36, and the comparison reached a mean of 2648N.
  • tests were run nine times, three for three different groups of the example suspension band 100 (#32, #35, and #36 and a mean was found for each band. Tests were also run four times (FSH-1 to FSH-4) and a mean of the results was calculated and shown of an example comparison helmet and suspension band. As shown, the example helmet system 300 reached a mean of 2496N with #32, and the comparison reached a mean of 2672N.
  • tests were run nine times, three for three different groups of the example suspension band 100 (#35, #36, and #37 and a mean was found for each band. Tests were also run four times (FSH-1 to FSH-4) and a mean of the results was calculated and shown of an example comparison helmet and suspension band. As shown, the example helmet system 300 reached a mean of 2392N with #36, and the comparison reached a mean of 2775N.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Emergency Lowering Means (AREA)
  • Knitting Of Fabric (AREA)

Abstract

Suspension bands, helmet systems, and/or the like are provided. In some embodiments, a suspension band includes: a plurality of knitted loop structures; and a plurality of knitted inlay structures, wherein the plurality of knitted inlay structures is inserted as a weft inlay stitch on, beneath, or within the plurality of knitted loop structures. In some embodiments, the suspension band includes one or more inlay sections and a reinforcement section; a greater portion of the plurality of knitted loop structures are disposed on, beneath, or within the reinforcement section than are disposed on, beneath, or within the one or more inlay sections. In some embodiments, the one or more inlay sections include a first inlay section and a second inlay section, wherein the first inlay section is disposed on a first side of the reinforcement section and the second inlay section is disposed on a second side of the reinforcement section.

Description

    CROSS-REFERENCE TO RELATED APPLICATIONS
  • This application claims priority pursuant to 35 U.S.C. 119 (a) to Chinese Application No. 202311277610.1, filed Sep. 28, 2023, which application is incorporated herein by reference in its entirety.
  • TECHNOLOGICAL FIELD
  • The present disclosure relates generally to suspension bands. In particular, it relates to the suspension bands having energy absorbing properties.
  • BACKGROUND
  • Suspension bands or straps for use in helmet anti-concussion cradles or harness suspensions may have a webbing structure with fabric straps weaved by polyester, nylon yarns, or blended synthetic yarns by interweaving in weft and warp directions. The Applicants have identified various technical problems with existing suspension bands or straps.
  • Through applied effort, ingenuity, and innovation, the Applicants has solved problems relating to suspension bands by developing solutions embodied in the present disclosure, which are described in detail below.
  • SUMMARY
  • In general, embodiments of the present disclosure provide suspension bands, helmet systems, and/or the like.
  • In accordance with various embodiments of the present disclosure, there is provided a suspension band including a plurality of knitted loop structures; and a plurality of knitted inlay structures, wherein the plurality of knitted inlay structures is inserted as a weft inlay stitch on, beneath, or within the plurality of knitted loop structures.
  • In some embodiments, the suspension band includes one or more inlay sections and a reinforcement section, and wherein a greater portion of the plurality of knitted loop structures are disposed on, beneath, or within the reinforcement section than are disposed on, beneath, or within the one or more inlay sections.
  • In some embodiments, the one or more inlay sections include a first inlay section and a second inlay section, wherein the first inlay section is disposed on a first side of the reinforcement section and wherein the second inlay section is disposed on a second side of the reinforcement section.
  • In some embodiments, the suspension band has a length ranging from 335 mm to 390 mm, wherein the one or more inlay sections include a width ranging from 20 mm to 24 mm and a thickness ranging from 1.3 mm to 1.7 mm, and wherein the one or more reinforcement sections include a width ranging from 23 mm to 27 mm and a thickness ranging from 2 mm to 2.4 mm.
  • In some embodiments, the plurality of knitted loop structures and the plurality of knitted inlay structures are yarn.
  • In some embodiments, one or more knitted loop structures of the plurality of knitted loop structures include polyester DTY and wherein one or more knitted inlay structures of the plurality of knitted inlay structures include liquid crystal polymer (LCP).
  • In some embodiments, the yarn size of one or more knitted loop structures of the plurality of knitted loop structures is 300D and the yarn size of one or more knitted inlay structures is 1000D.
  • In some embodiments, the yarn tensile strength of one or more knitted loop structures of the plurality of knitted loop structures is 3.52 cN/dtex and the yarn tensile strength of one or more knitted inlay structures is 2.1N/tex.
  • In some embodiments, the suspension band includes a plurality of elongation structures, wherein one or more elongation structures of the plurality of elongation structures are inserted as a weft inlay stitch on, beneath, or within the plurality of knitted loop structures and disposed adjacent to one or more inlay structures of the plurality of inlay structures.
  • In some embodiments, the one or more elongation structures of the plurality of elongation structures include elongation yarn.
  • In some embodiments, the suspension band is integrated with a helmet, a fall protection harness, or a rope.
  • According to various embodiments, there is provided a helmet system including a shell configured to protect the head of a wearer; a harness disposed on, beneath, or within the shell; and a plurality of suspension bands, wherein at least one suspension band of the plurality of suspension bands includes a plurality of knitted loop structures; and a plurality of knitted inlay structures, wherein the plurality of knitted inlay structures is inserted as a weft inlay stitch on, beneath, or within the plurality of knitted loop structures, wherein the suspension band defines one or more inlay sections, and wherein the suspension ban defines a reinforcement section, wherein the harness is operably engaged with the plurality of suspension bands.
  • In some embodiments, the suspension band includes one or more inlay sections and a reinforcement section, and wherein a greater portion of reinforcement structures are disposed on, beneath, or within the reinforcement section than are disposed on, beneath, or within the one or more inlay sections.
  • In some embodiments, the one or more inlay sections include a first inlay section and a second inlay section, wherein the first inlay section is disposed on a first side of the reinforcement section and wherein the second inlay section is disposed on a second side of the reinforcement section.
  • In some embodiments, the suspension band includes a length ranging from 335 mm to 390 mm, wherein the one or more inlay sections include a width ranging from 20 mm to 24 mm and a thickness ranging from 1.3 mm to 1.7 mm, and wherein the one or more reinforcement sections include a width ranging from 23 mm to 27 mm and a thickness ranging from 2 mm to 2.4 mm.
  • In some embodiments, the plurality of knitted loop structures and the plurality of knitted inlay structures are yarn.
  • In some embodiments, one or more knitted loop structures of the plurality of knitted loop structures include polyester DTY and wherein one or more knitted inlay structures of the plurality of knitted inlay structures include liquid crystal polymer (LCP).
  • In some embodiments, the yarn size of one or more knitted loop structures of the plurality of knitted loop structures is 300D and the yarn size of one or more knitted inlay structures is 1000D.
  • In some embodiments, the yarn tensile strength of one or more knitted loop structures of the plurality of knitted loop structures is 3.52 cN/dtex and the yarn tensile strength of one or more knitted inlay structures is 2.1N/tex.
  • In some embodiments, the helmet system further includes a plurality of elongation structures, wherein one or more elongation structures of the plurality of elongation structures are inserted as a weft inlay stitch on, beneath, or within the plurality of knitted loop structures and disposed adjacent to one or more inlay structures of the plurality of inlay structures.
  • The above summary is provided merely for purposes of summarizing some example embodiments to provide a basic understanding of some embodiments of the disclosure. Accordingly, it will be appreciated that the above-described embodiments are merely examples. It will be appreciated that the scope of the disclosure encompasses many potential embodiments in addition to those here summarized, some of which will be further described below.
  • BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S)
  • Having thus described the disclosure in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:
  • FIG. 1A shows a top plan view of an example suspension band in accordance with various embodiments of the present disclosure;
  • FIG. 1B shows a detail view of an example suspension band in accordance with various embodiments of the present disclosure;
  • FIG. 1C shows a flat knitted strap structure of an example inlay section of an example suspension band in accordance with various embodiments of the present disclosure;
  • FIG. 1D shows a flat knitted strap structure of an example reinforcement section of an example suspension band in accordance with various embodiments of the present disclosure;
  • FIG. 2A-2C show top plan views of example weaving patterns for example suspension bands in accordance with various embodiments of the present disclosure;
  • FIG. 3A shows a top plan view of example suspension bands in accordance with various embodiments of the present disclosure;
  • FIG. 3B shows a top angled view of an example helmet in accordance with various embodiments of the present disclosure;
  • FIGS. 4A and 4B show tensile strength of example suspension bands in accordance with various embodiments of the present disclosure;
  • FIGS. 5A-5C show example test data of example suspension bands and suspension helmets in accordance with various embodiments of the present disclosure; and
  • FIGS. 6A-6C show example test data of example suspension bands and suspension helmets in accordance with various embodiments of the present disclosure.
  • DETAILED DESCRIPTION OF SOME EXAMPLE EMBODIMENTS
  • Various embodiments of the present disclosure now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the disclosure are shown. Indeed, this disclosure may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. The term “or” (also designated as “/”) is used herein in both the alternative and conjunctive sense, unless otherwise indicated. The terms “illustrative” and “exemplary” are used to be examples with no indication of quality level. Like numbers may refer to like elements throughout. The phrases “in one embodiment,” “according to one embodiment,” and/or the like generally mean that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure and may be included in more than one embodiment of the present disclosure (importantly, such phrases do not necessarily may refer to the same embodiment).
  • Overview
  • According to various embodiments, there is provided a suspension band having a knitted structure with a plurality of knitted loop structures and a plurality of knitted inlay structures, wherein the suspension band is divided into one or more inlay sections and one or more reinforcement sections. Textile structure can generally divide into three categories which are woven, knitting, nonwoven. The knitted category also divided into flat knitted, warp knitted, and circular knitted, which may produce differing loop structures. In some embodiments, different types of knitted structure rely on different knitting machines, while the same knitted structure cannot be knitted by different machines. The orientation, number, and material of the inlay structures in the suspension band's knitted structure may be varied and thereby affect the tension strength and energy absorption properties of the suspension band. In some embodiments, one or more suspension bands may be used in various applications, including (but not limited to) a helmet, webbing for a fall protection harness, a rope, and/or the like.
  • Example Suspension Bands
  • FIG. 1A shows a top plan view of an example suspension band 100, according to various embodiments. In the depicted embodiment, the suspension band 100 includes inlay sections 102A, 102B (note that similar descriptions may apply to sections 102A and 102B unless otherwise noted). A detail view of an example inlay section 102A is shown in FIG. 1B and a flat knitted structure of an example inlay section 102A is shown in FIG. 1C. Also, as shown in the depicted embodiment, the suspension band 100 includes at least one reinforcement section 104. A flat knitted structure of an example reinforcement section 104 is shown in FIG. 1D. According to various embodiments, the suspension band 100, including (but not limited to) its inlay sections 102A-B and/or reinforcement section 104, may be created using one or more flat-knitting machines, including (but not limited to) STOLL ADF, CIXIN CX2, SHIMA SEIKI, and/or the like. In some embodiments, the suspension band 100 may be incorporated into one or more applications, including but not limited to a helmet (as will be discussed later in this disclosure), a fall protection harness, a rope, and/or the like.
  • Referring now to FIG. 1B, in the depicted embodiment, the inlay section 102A includes one or more inlay structures 106A, 106B, 106C (note that similar descriptions may apply across the one or more inlay structures 106A-C unless otherwise noted) and a loop structure 108. In some embodiments, the inlay structures 106A-C are substantially straight, knitted structures disposed perpendicularly to one or more loops of the loop structure 108. In some embodiments, the inlay structures 106A-C are yarn structures having energy-absorbing properties configured to reinforce and/or strengthen the tension strength of the suspension band 100. Still referring to FIG. 1B, in the depicted embodiment, the loop structure 108 is a weft knitted structure having a lateral and longitudinal stretch formed into a plurality of loops distributed into a plurality of rows. In some embodiments, the loop structure 108 may be a continuous thread, wherein the loops of the plurality of loops are interlocked. In some embodiments, the loop structure 108 may be composed of polyester yarn having a yarn size of 600D and a tensile strength of 3.52 cN/dtex.
  • In some embodiments, the inlay structures 106A-C are disposed on, beneath, or within the loop structure 108. As shown in at least FIG. 1B, the inlay structures 106A-C are stitched through the loops of the loop structure 108. In at least the depicted embodiment, the inlay structures 106A-C are interwoven (i.e., inlaid) within the loop structure 108. In some embodiments, the inlay structures 106A-C may be composed of yarn and may be liquid crystal polymer (LCP) yarn.
  • In some embodiments, the inlay structures 106A-C may have a low elongation ratio (e.g., ˜3%). According to various embodiments, the inlay structures 106A-C may be inlay yarn material based on polyester (drawn textured yarn, full drawn yarn, and/or the like), modified polyester, biobased PA56, PA66, or liquid crystal polymer (LCP), high-performance polyethylene (HPPE), high density polyethylene (HDPE), low density polyethylene (LDPE), and/or the like. According to various embodiments, the inlay structures 106A-C may have a yarn size (D) of 1000D and a yarn tensile strength of 2.1 N/TEX, 3.1 N/Tex, or 2 N/Tex. According to various embodiments, the loop structure 108 may be loop yarn material including (but not limited to) PA6, PA56, PA66, polyester (which may be modified with, for example, PA6, PA66, or blended with cotton), CVC (80/20, 60/40, or 55/45), and/or TC (80/20, 60/40, 65/35).
  • Referring now to FIG. 1C, in the depicted embodiment, the inlay sections 102A, 102B may be flat knitted structures, as may the reinforcement section 104, as shown in at least FIG. 1D. The arrows will be understood as being for illustrative purposes, to show the steps of knitting the inlay sections 102A-B (in FIG. 1C) and the reinforcement section 104 (in FIG. 1D); that is, the knitting steps follow the arrows. FIG. 1C shows the knitting process of the inlay sections 102A-B, with the first line having a single bed needle loop to be knitted and the second line having a double bed needle loop to be knitted and insert the inlay yarn. FIG. 1D shows the knitting process of the reinforcement section 104, with double beds needle loops and inlay structures 106A inserted with each loop line or every other line or every second line. Further, as shown in FIGS. 1C-D, the reinforcement section 104 may include a greater number of loop structures 108, in addition to the inlay structure 106A (or 106B, 106C). As shown, the loop structures 108 may be knitted such that the inlay structures 106A-C are disposed between the loops of the loop structures 108.
  • Referring now to FIGS. 2A-C, alternative embodiments of the inlay sections 200A, 200B and 200C are shown, according to various embodiments. In the depicted embodiments, alternate structures 200A, 200B, 200C, are shown having a plurality of inlay structures 202A-E and a loop structure 204. It will be understood that the alternate structures 200A-C are alternative arrangements for the previously-described inlay sections 102A-B, and it will further be understood that these alternate structures 200A-C are not exhaustive.
  • As previously described, and as shown in the embodiments depicted in FIGS. 2A-C, the inlay structures 202A-E are interknit on, beneath, or within the loop structure 204. It will be understood that the inlay structures 202A-E may be described similarly to the inlay structures 106A-C, as previously described in the specification, unless explicitly stated otherwise. It will also be understood that the loop structure 204 may be described similarly to the loop structure 108, as previously described in the specification, unless explicitly stated otherwise.
  • In some embodiments, and as shown in at least FIGS. 2A and 2B, there are five inlay structures 202A-E, two more than the inlay structures 106A-C shown and described with respect to at least FIGS. 1A-B. In some embodiments, increasing the number of inlay structures 202A-E may increase one or more mechanical properties (e.g., tension strength) of the suspension bands 200A-C.
  • In the embodiments shown in at least FIGS. 2B and 2C, the alternate structures 200B and/or 200C may include a plurality of elongation structures 206A-E. As shown, the elongation structures 206A-E may be paired with and/or laid adjacent to the plurality of inlay structures 202A-E. As shown, the elongation structures 206A-E may be interknit and/or inlaid with the loop structure 204, as the plurality of inlay structures 202A-E are. In some embodiments, the elongation structures 206A-E may be configured to increase the tension strength of the suspension bands (200B, 200C). In some embodiments, the elongation structures 206A-E may be knitted yarn. In some embodiments, the elongation structures 206A-E may be composed of liquid crystal elastomer (LCE), high-performance polyethylene (HPPE), and/or the like.
  • Example Helmet Systems
  • FIGS. 3A and 3B show top plan and top angled views, respectively, of example helmet system 300. In some embodiments, the helmet system 300 may be used to protect the head of a user from trauma (e.g., being struck on the head by a falling object). In some embodiments, the helmet system 300 may be used in a variety of activities, including (but not limited to) climbing, mining, utility repair/maintenance, and/or construction. In some embodiments, the helmet system 300 includes a plurality of suspension bands 302A, 302B, 302C. In the embodiments shown and described in FIGS. 3A-3B, the suspension bands 302A-C are described similarly to the suspension band 100 shown and described with respect to FIGS. 1A-D. It will be understood that, in some embodiments, the suspension bands 302A-C may include one of the alternative suspension bands 200A-C, described and shown with respect to at least FIGS. 2A-C. In some embodiments, the suspension bands 302A-C may vary in length, width, and/or thickness between each other. For example, one suspension band (e.g., 302B) may be shorter than the other suspension bands (e.g., 302A and 302C).
  • In some embodiments, and referring now to FIG. 3B, the helmet system 300 may include a shell 312. In some embodiments, the shell 312 may be a dome-shaped structure designed to fit around the head of a user. In some embodiments, the shell may be composed of a “hard,” substantially rigid material designed to absorb and/or deflect one or more blows. In some embodiments, the shell 312 may be composed of polycarbonate and/or fiberglass of varying durability and thickness.
  • In some embodiments, the helmet system 300 may include a harness 304. In some embodiments, one or more of the suspension bands 302A-C may be disposed through and operatively engaged with the harness 304. In some embodiments, the harness 304 may be a substantially circular structure having one or more slots for receiving the plurality of suspension bands 302A-C. The suspension bands 302A-C, as shown in at least FIG. 3B, are disposed through the harness 304 and attached to one or more slots of the shell 312 of the helmet system 300.
  • In some embodiments, the helmet system 300 may include a frame 306. The frame 306 may be disposed around a perimeter of the helmet shell 312. In some embodiments, the frame 306 may provide stability to the helmet system 300.
  • In some embodiments, the helmet system 300 may include one or more cushion structures 308A, 308B disposed on, beneath, or within the frame 306. In some embodiments, the one or more cushion structures 308A, B may be “soft” material intended to make a user's head comfortable when wearing the helmet system 300.
  • In some embodiments, the helmet system 300 may include one or more straps 310A, 310B. In some embodiments, the one or more straps 310A-B may include a clasp or buckle and may be configured to secure the helmet system 300 to a user's head. In some embodiments, the one or more straps 310A-B may be adjusted to increase or decrease the “tightness” of the helmet system 300 and adjust the “fit” of the helmet system 300 around a user's head.
  • Example Test Data
  • FIGS. 4A and 4B show example test data for tests run using an example suspension band 100 and an example helmet system 300. The test was performed using an INSTROM 5967 test machine and the ISO 13934 test standard. The tensile speed was 100 mm/min, the temperature was 26 degrees Celsius (+/−3 degrees), and the test humidity was 85%.
  • FIG. 4A shows the test results for a helmet 300 using example suspension bands 100 having 6 pieces of inlay yarn (i.e., 6 inlay structures, as previously described), and FIG. 4B shows the results for an example suspension band 100 having 8 pieces of inlay yarn (i.e., 8 inlay structures, as previously described). As shown, the results charted in FIG. 4A show a helmet having a maximum load (in Newtons) of approximately 800 and a maximum load extension of 68 mm (+/−5 mm), and FIG. 4B shows a helmet having a maximum load (in Newtons) or approximately 1000 and a maximum load extension of 62 mm (+/−5 mm). As shown, there is a general trend observed of the load increasing steadily as the suspension band continues to extend, and the general trend is broken when the suspension band snaps under the load.
  • FIGS. 5A-5C show example test data run using an example suspension band 100 and an example helmet system 300. The test was performed using a load cell device. FIG. 5A shows example test data at −30 degrees Celsius, FIG. 5B shows example test data at 50 degrees Celsius, and FIG. 5C shows example test data at 20 degrees Celsius and shows test data for a helmet system 300 that was in water during the test. Note that, when temperatures are referenced with respect to the test data in this disclosure, those temperatures refer to the test conditions at which sample helmets were kept to precondition (from 4-24 hours) the helmet prior to the tests; the preconditioned helmets underwent the load under atmospheric pressure conditions at 22° C.±5° C. and a humidity of 55%±30%
  • Referring now to FIG. 5A, as shown, tests were run six times (32 #1 through 32 #6) and a mean of the results was calculated and shown on the example helmet system 300. Tests were also run two times (SFH-1 to SFH-2) and a mean of the results was calculated and shown of an example comparison helmet and suspension band. As shown, the example helmet system 300 reached a mean of 2590N, and the comparison reached a mean of 3416N.
  • Referring now to FIG. 5B, as shown, tests were run six times (32 #1 through 32 #6) and a mean of the results was calculated and shown on the example helmet system 300. Tests were also run eight times (SFH-1 to SFH-8) and a mean of the results was calculated and shown of an example comparison helmet and suspension band. As shown, the example helmet system 300 reached a mean of 2440N, and the comparison reached a mean of 3220N.
  • Referring now to FIG. 5C, as shown, tests were run six times (32 #1 through 32 #6) and a mean of the results was calculated and shown on the example helmet system 300. Tests were also run two times (SFH-1 to SFH-2) and a mean of the results was calculated and shown of an example comparison helmet and suspension band. As shown, the example helmet system 300 reached a mean of 2533N, and the comparison reached a mean of 2991N.
  • FIGS. 6A-6C show example test data run using an example suspension band 100 and an example helmet system 300. The test was performed using ANSI Z89.1 peak force at 50 degrees Celsius (for FIG. 6A), at −30 degrees Celsius (FIG. 6B), and at 20 degrees Celsius (FIG. 6C). The 50° C. test conditions need to keep the helmet in the pre-condition cabinet at least 2 hours, −30° C. test conditions need to keep the helmet in the pre-condition cabinet at least 4 hours, 20° C. test conditions need to keep the helmet in the pre-condition cabinet at least 2 hours, hot and low temperature conditioned samples were tested for impact test within 30 seconds after their removal from the condition environment, and the “wet” sample was tested within 90 seconds from their removal of the water bath.
  • Referring now to FIG. 6A, as shown, tests were run nine times, three for three different groups of the example suspension band 100 (#32, #35, and #36 and a mean was found for each band. Tests were also run four times (FSH-1 to FSH-4) and a mean of the results was calculated and shown of an example comparison helmet and suspension band. As shown, the example helmet system 300 reached a mean of 2170N with #36, and the comparison reached a mean of 2648N.
  • Referring now to FIG. 6B, as shown, tests were run nine times, three for three different groups of the example suspension band 100 (#32, #35, and #36 and a mean was found for each band. Tests were also run four times (FSH-1 to FSH-4) and a mean of the results was calculated and shown of an example comparison helmet and suspension band. As shown, the example helmet system 300 reached a mean of 2496N with #32, and the comparison reached a mean of 2672N.
  • Referring now to FIG. 6C, as shown, tests were run nine times, three for three different groups of the example suspension band 100 (#35, #36, and #37 and a mean was found for each band. Tests were also run four times (FSH-1 to FSH-4) and a mean of the results was calculated and shown of an example comparison helmet and suspension band. As shown, the example helmet system 300 reached a mean of 2392N with #36, and the comparison reached a mean of 2775N.
  • Many modifications and other embodiments of the disclosure set forth herein will come to mind to one skilled in the art to which this disclosure pertains having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the disclosure is not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims (20)

What is claim is:
1. A suspension band comprising:
a plurality of knitted loop structures; and
a plurality of knitted inlay structures,
wherein the plurality of knitted inlay structures is inserted as a weft inlay stitch on, beneath, or within the plurality of knitted loop structures.
2. The suspension band of claim 1, wherein the suspension band comprises one or more inlay sections and a reinforcement section, and wherein a greater portion of the plurality of knitted loop structures are disposed on, beneath, or within the reinforcement section than are disposed on, beneath, or within the one or more inlay sections.
3. The suspension band of claim 2, wherein the one or more inlay sections comprise a first inlay section and a second inlay section, wherein the first inlay section is disposed on a first side of the reinforcement section and wherein the second inlay section is disposed on a second side of the reinforcement section.
4. The suspension band of claim 2, wherein the suspension band comprises a length ranging from 335 mm to 390 mm, wherein the one or more inlay sections comprise a width ranging from 20 mm to 24 mm and a thickness ranging from 1.3 mm to 1.7 mm, and wherein the one or more reinforcement sections comprise a width ranging from 23 mm to 27 mm and a thickness ranging from 2 mm to 2.4 mm.
5. The suspension band of claim 1, wherein the plurality of knitted loop structures and the plurality of knitted inlay structures comprise yarn.
6. The suspension band of claim 5, wherein one or more knitted loop structures of the plurality of knitted loop structures comprise polyester DTY and wherein one or more knitted inlay structures of the plurality of knitted inlay structures comprise liquid crystal polymer (LCP).
7. The suspension band of claim 5, wherein the yarn size of one or more knitted loop structures of the plurality of knitted loop structures is 300D and the yarn size of one or more knitted inlay structures is 1000D.
8. The suspension band of claim 5, wherein the yarn tensile strength of one or more knitted loop structures of the plurality of knitted loop structures is 3.52 cN/dtex and the yarn tensile strength of one or more knitted inlay structures is 2.1N/tex.
9. The suspension band of claim 1, further comprising a plurality of elongation structures, wherein one or more elongation structures of the plurality of elongation structures are inserted as a weft inlay stitch on, beneath, or within the plurality of knitted loop structures and disposed adjacent to one or more inlay structures of the plurality of inlay structures.
10. The suspension band of claim 9, wherein the one or more elongation structures of the plurality of elongation structures comprises elongation yarn.
11. The suspension band of claim 1, wherein the suspension band is integrated with a helmet, a fall protection harness, or a rope.
12. A helmet system comprising:
a shell configured to protect the head of a wearer;
a harness disposed on, beneath, or within the shell; and
a plurality of suspension bands,
wherein at least one suspension band of the plurality of suspension bands comprises:
a plurality of knitted loop structures; and
a plurality of knitted inlay structures,
wherein the plurality of knitted inlay structures is inserted as a weft inlay stitch on, beneath, or within the plurality of knitted loop structures,
wherein the suspension band defines one or more inlay sections, and
wherein the suspension ban defines a reinforcement section,
wherein the harness is operably engaged with the plurality of suspension bands.
13. The helmet system of claim 12, wherein the suspension band comprises one or more inlay sections and a reinforcement section, and wherein a greater portion of reinforcement structures are disposed on, beneath, or within the reinforcement section than are disposed on, beneath, or within the one or more inlay sections.
14. The helmet system of claim 13, wherein the one or more inlay sections comprise a first inlay section and a second inlay section, wherein the first inlay section is disposed on a first side of the reinforcement section and wherein the second inlay section is disposed on a second side of the reinforcement section.
15. The helmet system of claim 13, wherein the suspension band comprises a length ranging from 335 mm to 390 mm, wherein the one or more inlay sections comprise a width ranging from 20 mm to 24 mm and a thickness ranging from 1.3 mm to 1.7 mm, and wherein the one or more reinforcement sections comprise a width ranging from 23 mm to 27 mm and a thickness ranging from 2 mm to 2.4 mm.
16. The helmet system of claim 12, wherein the plurality of knitted loop structures and the plurality of knitted inlay structures comprise yarn.
17. The helmet system of claim 16, wherein one or more knitted loop structures of the plurality of knitted loop structures comprise polyester DTY and wherein one or more knitted inlay structures of the plurality of knitted inlay structures comprise liquid crystal polymer (LCP).
18. The helmet system of claim 16, wherein the yarn size of one or more knitted loop structures of the plurality of knitted loop structures is 300D and the yarn size of one or more knitted inlay structures is 1000D.
19. The helmet system of claim 16, wherein the yarn tensile strength of one or more knitted loop structures of the plurality of knitted loop structures is 3.52 cN/dtex and the yarn tensile strength of one or more knitted inlay structures is 2.1N/tex.
20. The helmet system of claim 12, further comprising a plurality of elongation structures, wherein one or more elongation structures of the plurality of elongation structures are inserted as a weft inlay stitch on, beneath, or within the plurality of knitted loop structures and disposed adjacent to one or more inlay structures of the plurality of inlay structures.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20250101645A1 (en) * 2023-09-25 2025-03-27 Honeywell International Inc. Type of safety helmet impact indicator

Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US963864A (en) * 1910-01-03 1910-07-12 Horace A Carter Knitted fabric.
US2013347A (en) * 1933-11-21 1935-09-03 Permafiex Inc Belt for garments and the like articles
US3040329A (en) * 1959-07-20 1962-06-26 Bullard Co Safety hat suspension harness
US3301018A (en) * 1965-01-26 1967-01-31 Kendall & Co Elastic yarn and garment incorporating it
US4009597A (en) * 1975-12-24 1977-03-01 Southern Webbing Mills, Inc. Elastic tape with ravel resistant edge and method of knitting
US5337420A (en) * 1992-11-03 1994-08-16 Haysom Elbert M Method and apparatus for mounting and locating a helmet comfortably on the head of a person, and combination resulting therefrom
JPH07179335A (en) * 1993-12-21 1995-07-18 Toho Seni Kk Knit base fabric for cataplasm, its production and cataplasm
US5623840A (en) * 1992-07-08 1997-04-29 Tecnit-Technische Textilien Und Systeme Gmbh Process for production of weave-knit material
US6381760B1 (en) * 1999-09-17 2002-05-07 Soccerdocs. Inc. Protective headguard
US20070124874A1 (en) * 2005-12-06 2007-06-07 Veken Holding Group Co., Ltd. Kind of Polyester Microfibre Weft Knitting Velveteen Coral Blanket and Its Production Method
US7770239B1 (en) * 2008-03-25 2010-08-10 Blackhawk Industries Product Group Unlimited Llc Suspension system and chin strap assembly for a helmet
US20110240827A1 (en) * 2010-03-31 2011-10-06 Malloy Cassie M Exhaust hanger band assembly and textile sleeve expansion limiter therefor and method of increasing the tensile strength of an exhaust hanger band
US8181491B2 (en) * 2007-02-15 2012-05-22 Sofradim Production Prosthetic knit for treating prolapses
US20160076177A1 (en) * 2014-09-16 2016-03-17 Ki Won Kim Warp knitting fabric expressing design pattern of jacquard texture on ground organization
US20160081417A1 (en) * 2013-02-28 2016-03-24 Nike, Inc. Method of knitting a knitted component with a vertically inlaid tensile element
US20160090670A1 (en) * 2014-09-30 2016-03-31 Nike, Inc. Article of Footwear Incorporating A Knitted Component with Inlaid Tensile Elements and Method of Assembly
US9307802B2 (en) * 2012-10-22 2016-04-12 Revision Military S.A.R.L. Helmet suspension system
US20170145596A1 (en) * 2015-10-27 2017-05-25 Tosha Hays Systems and articles of manufacture employing long-term cooling material in woven and non-woven fabrics and processes to generate the long-term cooling material and articles of manufacture
US20190352811A1 (en) * 2018-05-18 2019-11-21 Issetex Co., Ltd. Stacking and Sandwiching Fabric
US10688357B2 (en) * 2014-08-07 2020-06-23 Warrior Sport, Inc. Lacrosse head pocket and related method of manufacture
US11730221B2 (en) * 2019-01-12 2023-08-22 Herutu Electronics Corporation Apparatus for detecting wearing of body protection gear
US11983320B2 (en) * 2022-02-25 2024-05-14 Meta Platforms Technologies, Llc Techniques for incorporating stretchable conductive textile traces and textile-based sensors into knit structures
US12240952B2 (en) * 2020-12-11 2025-03-04 Brrr! Inc. Methods and compositions for films, masterbatch, yarns, fabrics, and articles comprising same
US20250089838A1 (en) * 2022-01-17 2025-03-20 Ulbrichts Gmbh Inner system for a safety helmet

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3619814A (en) * 1969-12-11 1971-11-16 Gentex Corp Protective helmet with adjustable headband
CA2385163A1 (en) * 1999-10-14 2001-04-19 Rose Manufacturing Company Lanyard with integral fall arrest energy absorber
TWM254981U (en) * 2004-03-12 2005-01-11 Nien Made Entpr Co Ltd Structure of Venetian blinds with cloth slat

Patent Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US963864A (en) * 1910-01-03 1910-07-12 Horace A Carter Knitted fabric.
US2013347A (en) * 1933-11-21 1935-09-03 Permafiex Inc Belt for garments and the like articles
US3040329A (en) * 1959-07-20 1962-06-26 Bullard Co Safety hat suspension harness
US3301018A (en) * 1965-01-26 1967-01-31 Kendall & Co Elastic yarn and garment incorporating it
US4009597A (en) * 1975-12-24 1977-03-01 Southern Webbing Mills, Inc. Elastic tape with ravel resistant edge and method of knitting
US5623840A (en) * 1992-07-08 1997-04-29 Tecnit-Technische Textilien Und Systeme Gmbh Process for production of weave-knit material
US5337420A (en) * 1992-11-03 1994-08-16 Haysom Elbert M Method and apparatus for mounting and locating a helmet comfortably on the head of a person, and combination resulting therefrom
JPH07179335A (en) * 1993-12-21 1995-07-18 Toho Seni Kk Knit base fabric for cataplasm, its production and cataplasm
US6381760B1 (en) * 1999-09-17 2002-05-07 Soccerdocs. Inc. Protective headguard
US20070124874A1 (en) * 2005-12-06 2007-06-07 Veken Holding Group Co., Ltd. Kind of Polyester Microfibre Weft Knitting Velveteen Coral Blanket and Its Production Method
US8181491B2 (en) * 2007-02-15 2012-05-22 Sofradim Production Prosthetic knit for treating prolapses
US7770239B1 (en) * 2008-03-25 2010-08-10 Blackhawk Industries Product Group Unlimited Llc Suspension system and chin strap assembly for a helmet
US20110240827A1 (en) * 2010-03-31 2011-10-06 Malloy Cassie M Exhaust hanger band assembly and textile sleeve expansion limiter therefor and method of increasing the tensile strength of an exhaust hanger band
US9307802B2 (en) * 2012-10-22 2016-04-12 Revision Military S.A.R.L. Helmet suspension system
US20160081417A1 (en) * 2013-02-28 2016-03-24 Nike, Inc. Method of knitting a knitted component with a vertically inlaid tensile element
US10688357B2 (en) * 2014-08-07 2020-06-23 Warrior Sport, Inc. Lacrosse head pocket and related method of manufacture
US20160076177A1 (en) * 2014-09-16 2016-03-17 Ki Won Kim Warp knitting fabric expressing design pattern of jacquard texture on ground organization
US20160090670A1 (en) * 2014-09-30 2016-03-31 Nike, Inc. Article of Footwear Incorporating A Knitted Component with Inlaid Tensile Elements and Method of Assembly
US20170145596A1 (en) * 2015-10-27 2017-05-25 Tosha Hays Systems and articles of manufacture employing long-term cooling material in woven and non-woven fabrics and processes to generate the long-term cooling material and articles of manufacture
US20190352811A1 (en) * 2018-05-18 2019-11-21 Issetex Co., Ltd. Stacking and Sandwiching Fabric
US11730221B2 (en) * 2019-01-12 2023-08-22 Herutu Electronics Corporation Apparatus for detecting wearing of body protection gear
US12240952B2 (en) * 2020-12-11 2025-03-04 Brrr! Inc. Methods and compositions for films, masterbatch, yarns, fabrics, and articles comprising same
US20250089838A1 (en) * 2022-01-17 2025-03-20 Ulbrichts Gmbh Inner system for a safety helmet
US11983320B2 (en) * 2022-02-25 2024-05-14 Meta Platforms Technologies, Llc Techniques for incorporating stretchable conductive textile traces and textile-based sensors into knit structures

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Size Charts." Twig and Tale. 12 Aug 2020. https://www.twigandtale.com/pages/size-charts (Year: 2020) *
Shippee, Eric. "Standard Tenacity yarn vs. High Modulus Aramid Yarn-Which Do You Need?" Service Thread. 28 February 2018. https://www.servicethread.com/blog/standard-tenacity-yarn-vs.-high-modulus-aramid-yarn-which-do-you-need (Year: 2018) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20250101645A1 (en) * 2023-09-25 2025-03-27 Honeywell International Inc. Type of safety helmet impact indicator

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