WO2021140395A1 - Sangles sans couture pour sac à dos - Google Patents

Sangles sans couture pour sac à dos Download PDF

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Publication number
WO2021140395A1
WO2021140395A1 PCT/IB2020/062220 IB2020062220W WO2021140395A1 WO 2021140395 A1 WO2021140395 A1 WO 2021140395A1 IB 2020062220 W IB2020062220 W IB 2020062220W WO 2021140395 A1 WO2021140395 A1 WO 2021140395A1
Authority
WO
WIPO (PCT)
Prior art keywords
seamless
knitted tube
knitted
shoulder strap
strap
Prior art date
Application number
PCT/IB2020/062220
Other languages
English (en)
Inventor
Chris Grill
Ho Lun MAK
Graham Jackson
Mark Thibadeau
Man Lung HUNG
Lang Liu
Original Assignee
Thule Sweden Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Thule Sweden Ab filed Critical Thule Sweden Ab
Publication of WO2021140395A1 publication Critical patent/WO2021140395A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/04—Sacks or packs carried on the body by means of two straps passing over the two shoulders
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/12—Shoulder-pads
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/22—Weft 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
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/024—Fabric incorporating additional compounds
    • D10B2403/0241—Fabric incorporating additional compounds enhancing mechanical properties
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/03—Shape features
    • D10B2403/031—Narrow fabric of constant width
    • D10B2403/0312—Bulk fabric, e.g. belts

Definitions

  • the present disclosure relates to backpacks having seamless shoulder straps. More specifically, embodiments of the present disclosure relate to a seamless shoulder strap system and apparatus for a backpack and a method of forming a seamless shoulder strap.
  • Backpacks typically include a shoulder strap or a pair of shoulder straps with a seam, for example, along an edge of the strap or along an outer surface of the strap.
  • Shoulder straps with seams can rub against the user and become uncomfortable to the user over time, especially when carrying a heavy load in the backpack and/or traveling for an extended period of time. Further, components of the shoulder strap may protrude and be exposed to the user, and can cause additional irritation or discomfort.
  • a seamless shoulder strap is needed to improve user comfort and reduce irritation so the user can remain focused on their primary activity.
  • a backpack includes a main body and a seamless shoulder strap.
  • the main body defines a storage compartment.
  • the seamless shoulder strap is coupled to the main body.
  • the seamless shoulder strap includes a knitted tube having a seamless edge on at least one outer surface.
  • the backpack further includes a second seamless shoulder strap.
  • the second seamless shoulder strap includes a knitted tube having a seamless edge on at least one outer surface.
  • the seamless shoulder strap includes a foam insert disposed freely inside the knitted tube.
  • the seamless shoulder strap includes a knitted padding disposed freely inside the knitted tube.
  • the seamless shoulder strap includes a knitted padding integral with the knitted tube.
  • the seamless shoulder strap includes a strap webbing integrally formed in the knitted tube.
  • the seamless shoulder strap includes a load lifter configured to support an upper fastener coupled to the main body.
  • the load lifter is inserted into a slot formed in the seamless shoulder strap.
  • the load lifter is secured by a bartack and a strap webbing.
  • the seamless shoulder strap includes a sternum strap configured to contour the seamless shoulder strap.
  • the sternum strap is secured by a bartack and a strap webbing.
  • the seamless shoulder strap includes a tension lock configured to support a lower fastener coupled to the main body.
  • the tension lock is inserted into a slot formed in the seamless shoulder strap.
  • the tension lock is secured by a bartack and a strap webbing.
  • an inward-facing outer surface of the seamless shoulder strap includes a plurality of first perforations. In some embodiments, an outward-facing outer surface of the seamless shoulder strap includes the plurality of first perforations. In some embodiments, an outward-facing outer surface of the seamless shoulder strap includes a plurality of second perforations smaller than the plurality of first perforations.
  • the knitted tube includes a flat seamless knitting construction. In some embodiments, the knitted tube has a curved portion. In some embodiments, an inner seamless edge includes a convex curved portion and an outer seamless edge includes a concave curved portion opposite the convex curved portion. In some embodiments, the knitted tube includes a first knitted material, a second knitted material, and a third knitted material.
  • the seamless edge on the at least one outer surface is disposed along a longitudinal length of the knitted tube.
  • the knitted tube includes an outer seamless edge and an inner seamless edge.
  • the entire knitted tube is seamless.
  • a method of forming a seamless shoulder strap for a backpack includes knitting a knitted tube. In some embodiments, the method further includes assembling a load lifter into the knitted tube. In some embodiments, the method further includes assembling a sternum strap into the knitted tube. In some embodiments, the method further includes assembling a tension lock.
  • the method further includes inserting a foam insert into the knitted tube.
  • knitting the knitted tube includes integrally forming a knitted padding with the knitted tube.
  • assembling the load lifter, the sternum strap, and the tension lock occurs sequentially.
  • knitting the knitted tube includes performing flat seamless knitting.
  • knitting the knitted tube includes knitting a first material, a second material, and a third material.
  • assembling the load lifter into the knitted tube includes assembling a first bartack and a first strap webbing.
  • assembling the sternum strap into the knitted tube includes assembling a second bartack and a second strap webbing.
  • assembling the tension lock into the knitted tube includes assembling a third bartack and a third strap webbing.
  • a seamless shoulder strap for a backpack includes a knitted tube and an insert.
  • the knitted tube includes a seamless edge on at least one outer surface.
  • the insert is disposed freely inside or integrated with the knitted tube.
  • an inward-facing outer surface and an outward-facing outer surface of the knitted tube includes a plurality of first perforations.
  • the insert includes a foam insert. In some embodiments, the insert includes a knitted padding integral with the knitted tube.
  • the knitted tube includes a flat seamless knitting construction.
  • a sternum strap is disposed in the knitted tube.
  • the sternum strap is secured by a bartack and a strap webbing.
  • the sternum strap is configured to define a curvature of the seamless shoulder strap.
  • the seamless edge on the at least one outer surface is disposed along a longitudinal length of the knitted tube.
  • the knitted tube includes an outer seamless edge and an inner seamless edge. In some embodiments, the entire knitted tube is seamless.
  • FIG. 1 illustrates a perspective view of a backpack, according to an embodiment.
  • FIG. 2 illustrates a perspective view of a backpack, according to an embodiment.
  • FIG. 3 illustrates a rear view of a seamless shoulder strap, according to an embodiment.
  • FIG. 4 illustrates a front view of a seamless shoulder strap, according to an embodiment.
  • FIG. 5 illustrates a perspective view of a knitted tube for a seamless shoulder strap, according to an embodiment.
  • FIG. 6 illustrates a front view of a knitted tube for a seamless shoulder strap, according to an embodiment.
  • FIG. 6 A illustrates a partial front view of the knitted tube of FIG. 6, according to an embodiment.
  • FIG. 7 illustrates a front view of a knitted tube for a seamless shoulder strap, according to an embodiment.
  • FIG. 7 A illustrates a partial front view of the knitted tube of FIG. 7, according to an embodiment.
  • FIG. 8 illustrates a front view of a knitted tube for a seamless shoulder strap, according to an embodiment.
  • FIG. 8A illustrates a partial front view of the knitted tube of FIG. 8, according to an embodiment.
  • FIG. 9 illustrates a flow diagram for forming a seamless shoulder strap, according to an embodiment.
  • FIG. 10 illustrates a perspective view of a knitted tube for a seamless shoulder strap, according to an embodiment.
  • FIG. 11 illustrates a perspective view of a knitted tube for a seamless shoulder strap, according to an embodiment.
  • the term “about” as used herein indicates the value of a given quantity that can vary based on a particular technology. Based on the particular technology, the term “about” can indicate a value of a given quantity that varies within, for example, 1-15% of the value (e.g., ⁇ 1%, ⁇ 2%, ⁇ 5%, ⁇ 10%, or ⁇ 15% of the value).
  • Backpacks are used in a variety of activities, for example, running, biking, hiking, kayaking, skiing, motorcycling, or climbing.
  • Backpacks typically include a shoulder strap or a pair of shoulder straps with a seam, for example, along an edge of the strap or along an outer surface of the strap.
  • Shoulder straps with seams may cause irritation or discomfort to a user.
  • a seam on a shoulder strap can rub against the user (e.g., friction) and become uncomfortable to the user over time, especially when carrying a heavy load in the backpack and/or traveling for an extended period of time.
  • components of the shoulder strap may protrude and be exposed to the user, and can cause additional irritation or discomfort. Therefore, there is a need to reduce unnecessary irritation and improve user comfort through a seamless shoulder strap (e.g., knitted tube) on a backpack. This allows the user to reduce irritation (e.g., blisters, rash, chafing, etc.) and discomfort, and remain focused on their primary activity.
  • irritation e.g., blisters, rash, chafing, etc.
  • FIGS. 1 and 2 illustrate backpack 100, according to embodiments.
  • FIG. 1 illustrates a perspective view of a front side 104 of backpack 100.
  • FIG. 2 illustrates a perspective view of a back side 106 of backpack 100.
  • backpack 100 can include main body 102, storage compartment 108, side panel 110, edge binding 112, vent panel 114, hipbelt 120, spring cam 128, seamless shoulder strap 130, second seamless shoulder strap 160, sternum belt 162, handle webbing 164, lower fastener 166, and/or upper fastener 168.
  • seamless shoulder straps 130, 160 can be generally disposed on a front side 104 of the user (e.g., over the shoulders and chest) and the main body 102 can be disposed on a back side 106 of the user (e.g., against the user’s back).
  • Seamless shoulder straps 130, 160 can extend from main body 102, over the user’s shoulders, in some cases partially around the user’s chest, and reconnect with the main body 102.
  • seamless shoulder straps 130, 160 can be adjustable, for example, via spring cam 128, lower fastener 166, and/or upper fastener 168.
  • spring cam 128 can adjust a position of seamless shoulder straps 130, 160 relative to main body 102 along a longitudinal length of main body 102, for example, about 25 cm.
  • a length of lower fastener 166 and/or upper fastener 168 can be extended or shortened, for example, via tension lock 150, about 25 cm to adjust a distance of seamless shoulder straps 130, 160 away from main body 102.
  • sternum belt 162 can releasably couple seamless shoulder straps 130, 160.
  • seamless shoulder strap 130 can include a knitted tube 170. Where particular features are described herein with respect to seamless shoulder strap 130, a person skilled in the art would understand how to employ the features for second seamless shoulder strap 160.
  • main body 102 can include storage compartment 108 for containing items (e.g., apparel, hiking gear, climbing gear, camping gear, equipment, etc.).
  • backpack 100 can include side panel 110 disposed between storage compartment 108 and vent panel 114. Side panel 110 and vent panel 114 can be secured to front side 104 of backpack 100 via edge binding 112. Vent panel 114 can provide breathability to the user during use of backpack 100.
  • vent panel 114 can include a plurality of perforations configured to allow air to flow in and out of vent panel 114.
  • backpack 100 can include handle webbing 164 disposed above seamless shoulder straps 130, 160 on main body 102. Handle webbing 164 can be configured to provide a handle or a grip to the user to lift or carry backpack 100.
  • backpack 100 can include hipbelt 120.
  • Hipbelt 120 can include mesh wrap 118, pocket 122, belt 124, and/or buckle 126.
  • Hipbelt 120 can be secured to vent panel 114 and main body 102 via tapered seam 116.
  • Mesh wrap 118 can be formed on hipbelt 120 for comfort and improved airflow to the user.
  • mesh wrap 118 can be elastic.
  • mesh wrap 118 can include a plurality of perforations.
  • Pocket 122 can be disposed on an exterior of hipbelt 120.
  • pocket 122 can be zippered.
  • Belt 124 can couple to buckle 126.
  • Belt 124 and buckle 126 can be configured to adjust a length of hipbelt 120 about the user.
  • Belt 124 and buckle 126 can be configured to provide support to the user when carrying backpack 100.
  • FIGS. 1-4 illustrate seamless shoulder strap 130 of backpack 100, according to embodiments.
  • FIG. 3 illustrates an inward-facing outer surface 132 of seamless shoulder strap 130.
  • FIG. 4 illustrates an outward-facing outer surface 134 of seamless shoulder strap 130.
  • seamless shoulder strap 130 can include insert 136 (e.g., a foam insert), load lifter 138, sternum strap 140, strap webbing 142, bartack 144, bottom slot 146, top slot 148, tension lock 150, outer seamless edge 152, inner seamless edge 154, large perforations 156, small perforations 158, and/or knitted tube 170.
  • second seamless shoulder strap 160 can be similar (e.g., mirror symmetric) to seamless shoulder strap 130.
  • foam insert 136 can be disposed freely in seamless shoulder strap 130, such that foam insert 136 is not fixedly attached to seamless shoulder strap 130.
  • foam insert 136 can be disposed freely inside knitted tube 170 and be capable of adjustment (e.g., movement) relative to knitted tube 170. This can facilitate efficient manufacturing and assembly. While described herein primarily as a “foam insert,” the insert may be other materials (e.g., polymer, polyurethane, polyethylene, polyester, polyvinyl, resin, latex, rubber, syntactic foam, open cell foam, closed cell foam, etc.) with sufficient structural rigidity to form a contour of knitted tube 170 while also having sufficient flexibility and softness to provide comfort to the user.
  • Knitted tube 170 can have an inner seamless edge 154 and an outer seamless edge 152. That is, unlike typical shoulder straps, seamless shoulder strap 130 does not have any edge binding to hold material components together.
  • inward-facing outer surface 132 of seamless shoulder strap 130 can include perforations, for example, large perforations 156.
  • large perforations 156 can be formed in strap webbing 142 (e.g., lowest density thread count).
  • Large perforations 156 can be configured to provide airflow through seamless shoulder strap 130 and provide breathability to the user.
  • large perforations 156 can have a diameter of about 1 mm to about 10 mm.
  • large perforations 156 can have a diameter of about 2 mm to about 5 mm.
  • the diameter can be about 3 mm.
  • strap webbing 142 can be a stitching (e.g., webbing) of a specific density for a seam strength per inch (SPI), for example, about 5 SPI (e.g., low density) to about 15 SPI (e.g., high density).
  • SPI seam strength per inch
  • large perforations 156 can be formed in strap webbing 142 (e.g., lowest density thread count) and small perforations 158, having a smaller diameter than large perforations 156, can be formed in strap webbing 142 (e.g., higher density thread count than large perforations 156), for example, in a different region of outward-facing outer surface 134.
  • Large and small perforations 156, 158 can be configured to provide airflow through seamless shoulder strap 130 and provide breathability to the user.
  • small perforations 158 can have a diameter of about 0.1 mm to about 5 mm. In some embodiments, small perforations 158 can have a diameter of about 0.5 mm to about 2 mm. For example, the diameter can be about 1 mm.
  • Load lifter 138 can be configured to support upper fastener 168 and be coupled to main body 102.
  • load lifter 138 can be inserted into top slot 148 formed in seamless shoulder strap 130 and secured, for example, by abartack(s) 144 and/or a strap webbing 142.
  • load lifter 138 can be inserted into top slot 148 in knitted tube 170 and secured (e.g., sewn) to knitted tube 170 by strap webbing 142 (e.g., a high density thread count).
  • buttons for example, button(s), latch(es), zipper(s), stitch(es), adhesive(s), VELCRO®, fastener(s), hook-and-loop fastener(s), buckle(s), pin(s), snap(s), magnet(s), etc.
  • button(s) for example, button(s), latch(es), zipper(s), stitch(es), adhesive(s), VELCRO®, fastener(s), hook-and-loop fastener(s), buckle(s), pin(s), snap(s), magnet(s), etc.
  • bartack(s) 144 and/or strap webbing 142 can be used instead of bartack(s) 144 and/or strap webbing 142 to secure load lifter 138, sternum strap 140, and/or tension lock 150.
  • Sternum strap 140 can be configured to contour seamless shoulder strap 130.
  • sternum strap 140 can be secured by a bartack(s) 144 and/or a strap webbing 142.
  • sternum strap 140 can be inserted into knitted tube 170 and secured (e.g., sewn) to knitted tube 170 by strap webbing 142 (e.g., a high density thread count).
  • sternum strap 140 can be secured by a plurality of bartacks 144 to form a particular contour or curvature of seamless shoulder strap 130.
  • a plurality of bartacks 144 can form a chain (e.g., linear array) in order to form a contour (e.g., an arcuate shape) in sternum strap 140.
  • Tension lock 150 can be configured to support lower fastener 166 and be coupled to main body 102.
  • tension lock 150 can be inserted into bottom slot 146 formed in seamless shoulder strap 130 and secured by a bartack(s) 144 and/or a strap webbing 142.
  • tension lock 150 can be inserted into bottom slot 146 in knitted tube 170 and secured (e.g., sewn) to knitted tube 170 by strap webbing 142 (e.g., a high density thread count).
  • Strap webbing 142 can be configured to integrate and secure various components
  • strap webbing 142 can integrate various components into knitted tube 170.
  • strap webbing 142 can be integrally formed in knitted tube 170.
  • strap webbing 142 can have a specific density (e.g., thread count).
  • strap webbing 142 can have a plurality of different densities (e.g., thread count). For example, as shown in FIGS.
  • strap webbing 142 can have a plurality of different densities in different regions of seamless shoulder strap 130, for example, a first density (e.g., lowest) for large perforations 156, a second density (e.g., higher than the first density) for small perforations 158, a third density (e.g., higher than the second density) for inner and outer seamless edges 154, 152, and/or a fourth density (e.g., higher than the third density) to secure load lifter 138, sternum strap 140, and/or tension lock 150.
  • a first density e.g., lowest
  • second density e.g., higher than the first density
  • third density e.g., higher than the second density
  • fourth density e.g., higher than the third density
  • FIGS. 5-8 illustrate knitted tube 170 for seamless shoulder strap 130 of backpack
  • FIG. 5 illustrates a perspective view of knitted tube 170 of seamless shoulder strap 130.
  • FIGS. 6 and 6A illustrate a front view of knitted tube 170 that incorporates load lifter 138.
  • FIGS. 7 and 7A illustrate a front view of knitted tube 170 that incorporates sternum strap 140.
  • FIGS. 8 and 8A illustrate a front view of knitted tube 170 that incorporates tension lock 150.
  • knitted tube 170 can include a top opening 176 and a bottom opening 178.
  • foam insert 136 can be inserted inside knitted tube 170 via top opening 176 or bottom opening 178.
  • foam insert 136 and knitted tube 170 can have corresponding shapes (e.g., ergonomically contoured shapes).
  • knitted tube 170 can have a sock-shape.
  • knitted tube 170 can include a convex curved portion 172 along inner seamless edge 154 and a concave curved portion 174, opposite convex curved portion 172, along outer seamless edge 152.
  • knitted tube 170 can have a flat seamless knitting construction.
  • knitted tube 170 can be constructed via flat knitting, in which knitted tube 170 (e.g., fabric) is turned periodically (e.g., via alternating sides) such that no seam is formed in knitted tube 170.
  • knitted tube 170 can include a variety of different patterns (e.g., large perforations 156, small perforations 158, strap webbing 142, etc.).
  • flat knitting provides complex stitch designs, shaped knitting, and/or precise width (e.g., perforation) adjustment for knitted tube 170.
  • Knitted tube 170 can be an integral tube.
  • knitted tube 170 can be a continuous shell or monocoque.
  • Knitted tube 170 includes a textile (e.g., fabric), for example, a polymer.
  • knitted tube 170 can include yam, thread, cotton, wool, nylon, elastane, rayon, acrylic, polyester, polyurethane, and/or some combination thereof.
  • knitted tube 170 can include a first knitted material, a second knitted material, and/or a third knitted material.
  • knitted tube 170 can include a polyester (e.g., 30%), nylon (e.g., 40%), and elastane (e.g., 30%) composition.
  • knitted tube 170 can include a first polyester, a second polyester, and nylon composition.
  • seamless edge 152, 154 on at least one outer surface 132 is provided.
  • knitted tube 170 can be disposed along a longitudinal length of knitted tube 170.
  • outer seamless edge 152 can be along the longitudinal length of knitted tube 170 between top opening 176 and bottom opening 178.
  • knitted tube 170 can include outer seamless edge 152 and inner seamless edge 154.
  • knitted tube 170 can be completely (e.g., entirely) seamless.
  • knitted tube 170 can include a longitudinal seam 171 that is disposed adjacent to an outer longitudinal edge (e.g., outer seamless edge 152 and/or inner seamless edge 154) of knitted tube 170.
  • the longitudinal seam 171 can be disposed about 10 mm to about 100 mm from the outer longitudinal edge (e.g., between outer seamless edge 152 and inner seamless edge 154) such that the longitudinal seam 171 is disposed on inward-facing outer surface 132 or outward-facing outer surface 134 of knitted tube 170.
  • the longitudinal seam 171 can be disposed about 20 mm to about 50 mm from the outer longitudinal edge (e.g., between outer seamless edge 152 and inner seamless edge 154).
  • the longitudinal seam 171 can be disposed about midway between outer seamless edge 152 and inner seamless edge 154.
  • load lifter 138 can be inserted into top slot 148 of knitted tube 170 and be secured by a bartack(s) 144 and/or strap webbing 142.
  • Load lifter 138 can be configured to support (e.g., connect to) upper fastener 168 coupled to main body 102 to assist support of a load in backpack 100.
  • load lifter 138 can be assembled in knitted tube 170 subsequent to foam insert 136 being inserted into knitted tube 170, for example, as shown in FIG. 5.
  • load lifter 138 can be assembled at the same time knitted tube 170 is being formed (e.g., knitted).
  • sternum strap 140 can be inserted into knitted tube
  • Sternum strap 140 can be configured to form or to define a particular contour or curvature of knitted tube 170 and seamless shoulder strap 130 (e.g., an arcuate shape or multi-curve shape). The contour or curvature of sternum strap 140 can assist the user with a load in backpack 100, for example, by providing the user with an ergonomic fit and reducing pressure points along seamless shoulder strap 130.
  • sternum strap 140 can be assembled in and/or to knitted tube 170 subsequent to foam insert 136 and/or load lifter 138 being inserted into knitted tube 170, for example, as shown in FIGS. 5 and 6.
  • sternum strap 140 can be assembled at the same time as knitted tube 170 is being formed (e.g., knitted).
  • tension lock 150 can be inserted into bottom slot 146 of knitted tube 170 and be secured by a bartack(s) 144 and/or strap webbing 142.
  • Tension lock 150 can be configured to support (e.g., connect to) lower fastener 166 coupled to main body 102 to assist support of a load in backpack 100 and/or adjust a length of lower fastener 166.
  • tension lock 150 can be assembled in and/or to knitted tube 170 subsequent to foam insert 136, load lifter 138, and/or sternum strap 140 being inserted into knitted tube 170, for example, as shown in FIGS. 5-7.
  • tension lock 150 can be assembled at the same time as knitted tube 170 is being formed (e.g., knitted).
  • FIG. 9 illustrates flow diagram 900 for forming a seamless shoulder strap 130, according to an embodiment. It is to be appreciated that not all steps in FIG. 9 are needed to perform the disclosure provided herein. Further, some of the steps may be performed simultaneously, sequentially, or in a different order than shown in FIG. 9. Flow diagram 900 is described with reference to FIGS. 3-8. However, flow diagram 900 is not limited to those example embodiments.
  • knitted tube 170 is constructed via flat knitting.
  • knitted tube 170 can include various slot(s), perforation(s), curvature(s), opening(s), and/or stitch design(s), for example, bottom slot 146, top slot 148, large perforations 156, small perforations 158, convex curved portion 172, concaved curved portion 174, top opening 176, bottom opening 178, and/or strap webbing 142.
  • step 904 foam insert 136 is inserted into knitted tube 170.
  • foam insert 136 is inserted at the same time as knitted tube 170 is being formed (e.g., knitted).
  • flow diagram 900 can omit step 904.
  • knitted tube 170 can be knitted tube 170' with integrally formed knitted padding 136".
  • knitting knitted tube 170 can include integrally forming knitted padding 136" with knitted tube 170'.
  • load lifter 138 is assembled into knitted tube 170.
  • load lifter 138 can be assembled by being inserted into top slot 148 in knitted tube 170 and secured (e.g., sewn) to knitted tube 170 by bartack(s) 144 and/or strap webbing 142 (e.g., a high density thread count).
  • load lifter 138 can be assembled at the same time as knitted tube 170 is being formed (e.g., knitted).
  • sternum strap 140 is assembled into knitted tube 170.
  • sternum strap 140 can be assembled by being inserted into knitted tube 170 and secured (e.g., sewn) to knitted tube 170 by bartack(s) 144 and/or strap webbing 142 (e.g., a high density thread count).
  • bartack(s) 144 and/or strap webbing 142 e.g., a high density thread count.
  • sternum strap 140 can be assembled at the same time as knitted tube 170 is being formed (e.g., knitted).
  • tension lock 150 is assembled into knitted tube 170.
  • tension lock 150 can be assembled by being inserted into bottom slot 146 in knitted tube 170 and secured (e.g., sewn) to knitted tube 170 by bartack(s) 144 and/or strap webbing 142 (e.g., a high density thread count).
  • tension lock 150 can be assembled at the same time as knitted tube 170 is being formed (e.g., knitted).
  • knitted tube 170 can be constructed via flat knitting.
  • knitted tube 170 can be constructed via seamless flat knitting through, for example, rotation and/or alternative knitting sides.
  • knitted tube 170 can be constructed via circular knitting.
  • assembly of load lifter 138, assembly of sternum strap 140, and assembly of tension lock 150 occurs sequentially.
  • FIGS. 10 and 11 illustrate seamless shoulder straps 130', 130" of backpack 100, according to embodiments.
  • FIG. 10 illustrates seamless shoulder strap 130' with knitted padding 136' which can be disposed inside knitted tube 170.
  • FIG. 11 illustrates seamless shoulder strap 130" with knitted padding 136" integrally formed with knitted tube 170'.
  • FIG. 10 illustrates seamless shoulder strap 130', according to certain embodiments.
  • seamless shoulder strap 130 shown in FIG. 5, for example, and the embodiments of seamless shoulder strap 130' shown in FIG. 10 may be similar. Similar reference numbers are used to indicate features of the embodiments of seamless shoulder strap 130 shown in FIG. 5 and the similar features of the embodiments of seamless shoulder strap 130' shown in FIG. 10.
  • One difference between the embodiments of seamless shoulder strap 130 shown in FIG. 5 and the embodiments of seamless shoulder strap 130' shown in FIG. 10 is that seamless shoulder strap 130' includes knitted padding 136' disposed inside knitted tube 170, rather than foam insert 136 shown in FIG. 5.
  • seamless shoulder strap 130' is shown in FIG.
  • the embodiments of this disclosure can be used with other apparatuses and/or systems, such as, but not limited to, backpack 100, seamless shoulder strap 130, second seamless shoulder strap 160, and/or knitted tube 170.
  • an aspect of seamless shoulder strap 130' is knitted padding
  • knitted padding 136' can be similar to knitted tube 170 and/or foam insert 136. Knitted padding 136' can be configured to have sufficient structural rigidity to form a contour of knitted tube 170 while also having sufficient flexibility and softness to provide comfort to the user. Knitted padding 136' can include a textile (e.g., fabric), for example, a polymer.
  • knitted padding 136' can include yam, thread, cotton, wool, nylon, elastane, rayon, acrylic, polyester, polyurethane, and/or some combination thereof.
  • knitted padding 136' can include a first knitted material, a second knitted material, and/or a third knitted material.
  • knitted padding 136' can include a polyester (e.g., 30%), nylon (e.g., 40%), and elastane (e.g., 30%) composition.
  • knitted padding 136' can include a first polyester, a second polyester, and nylon composition.
  • knitted padding 136' can be disposed freely in seamless shoulder strap 130', such that knitted padding 136' is not fixedly attached to seamless shoulder strap 130'.
  • knitted padding 136' can be disposed freely inside knitted tube 170 and be capable of adjustment (e.g., movement) relative to knitted tube 170.
  • knitted padding 136' can be inserted inside knitted tube 170 via top opening 176 or bottom opening 178.
  • knitted padding 136' and knitted tube 170 can have corresponding shapes (e.g., ergonomically contoured shapes).
  • knitted padding 136' can include a plurality of ridges configured to provide cushioning to the user.
  • knitted padding 136' can have a flat seamless knitting construction.
  • knitted padding 136' can be constructed via flat knitting, in which knitted padding 136' (e.g., fabric) is turned periodically (e.g., via alternating sides) such that no seam is formed in knitted padding 136'.
  • knitted padding 136' can include a variety of different patterns (e.g., large ridges, small ridges, webbing, etc.).
  • flat knitting provides complex stitch designs, shaped knitting, and/or precise height (e.g., ridges) and/or width adjustment for knitted padding 136'.
  • FIG. 11 illustrates seamless shoulder strap 130", according to embodiments.
  • the embodiments of seamless shoulder strap 130' shown in FIG. 10 and the embodiments of seamless shoulder strap 130" shown in FIG. 11 may be similar. Similar reference numbers are used to indicate features of the embodiments of seamless shoulder strap 130' shown in FIG. 10 and the similar features of the embodiments of seamless shoulder strap 130" shown in FIG. 11.
  • One difference between the embodiments of seamless shoulder strap 130' shown in FIG. 10 and the embodiments of seamless shoulder strap 130" shown in FIG. 11 is that seamless shoulder strap 130" includes knitted padding 136" that is integrally formed with knitted tube 170', rather than knitted padding 136' disposed inside knitted tube 170 shown in FIG. 10.
  • seamless shoulder strap 130" is shown in FIG.
  • the embodiments of this disclosure can be used with other apparatuses and/or systems, such as, but not limited to, backpack 100, seamless shoulder strap 130, second seamless shoulder strap 160, and/or knitted tube 170.
  • an aspect of seamless shoulder strap 130" is knitted padding
  • Knitted padding 136" integral with knitted tube 170'.
  • knitted padding 136" and knitted tube 170' can be similar to knitted tube 170.
  • Knitted padding 136" can be configured to have sufficient structural rigidity to form a contour of knitted tube 170' while also having sufficient flexibility and softness to provide comfort to the user.
  • Knitted padding 136" can include a textile (e.g., fabric), for example, a polymer.
  • knitted padding 136" can include yam, thread, cotton, wool, nylon, elastane, rayon, acrylic, polyester, polyurethane, and/or some combination thereof.
  • knitted padding 136" can include a first knitted material, a second knitted material, and/or a third knitted material.
  • knitted padding 136" can include a polyester (e.g., 30%), nylon (e.g., 40%), and elastane (e.g., 30%) composition.
  • knitted padding 136" can include a first polyester, a second polyester, and nylon composition.
  • knitted padding 136" can be integrally formed with knitted tube 170', such that knitted padding 136" is formed simultaneously with knitted tube 170'.
  • knitted padding 136" can be formed between outer and inner seamless edges 152, 154 of knitted tube 170' to provide a raised (e.g., cushioned) height along a longitudinal centerline of knitted tube 170'.
  • knitted padding 136" and knitted tube 170' can be sealed and completely seamless.
  • seamless shoulder strap 130" can include top seamless seal 176' and bottom seamless seal 178'.
  • knitted padding 136" can include a plurality of ridges configured to provide cushioning to the user.
  • knitted padding 136" and knitted tube 170' can have a flat seamless knitting construction.
  • knitted padding 136" and knitted tube 170' can be constructed via flat knitting, in which both knitted padding 136" (e.g., fabric) and knitted tube 170' (e.g., fabric) are turned periodically (e.g., via alternating sides) such that no seam is formed in knitted padding 136" and knitted tube 170'.
  • knitted padding 136" can include a variety of different patterns (e.g., large ridges, small ridges, webbing, etc.).
  • seamless shoulder strap 130 and/or second seamless shoulder strap 160 can include knitted tube 170 having a seamless edge 152, 154 on at least one outer surface 132, 134.
  • outer seamless edge 152 can be on inward-facing outer surface 132 and/or outward-facing outer surface 134.
  • seamless shoulder strap 130' can include knitted padding 136' disposed freely inside knitted tube 170.
  • seamless shoulder strap 130" can include knitted padding 136" integral with knitted tube 170'.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)

Abstract

Un sac à dos (100) comprend un corps principal (102) et une sangle sans couture (130). Le corps principal définit un compartiment de stockage (108). La sangle sans couture est couplée au corps principal. La sangle sans couture comprend un tube tricoté (170) ayant un bord sans couture sur au moins une surface externe.
PCT/IB2020/062220 2020-01-06 2020-12-18 Sangles sans couture pour sac à dos WO2021140395A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202062957447P 2020-01-06 2020-01-06
US62/957,447 2020-01-06

Publications (1)

Publication Number Publication Date
WO2021140395A1 true WO2021140395A1 (fr) 2021-07-15

Family

ID=73857233

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2020/062220 WO2021140395A1 (fr) 2020-01-06 2020-12-18 Sangles sans couture pour sac à dos

Country Status (1)

Country Link
WO (1) WO2021140395A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5896758A (en) * 1997-04-17 1999-04-27 Malden Mills Industries, Inc. Three-dimensional knit spacer fabric for footwear and backpacks
EP3001928A1 (fr) * 2014-09-30 2016-04-06 Equip Outdoor Technologies Limited Sac à dos

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5896758A (en) * 1997-04-17 1999-04-27 Malden Mills Industries, Inc. Three-dimensional knit spacer fabric for footwear and backpacks
EP3001928A1 (fr) * 2014-09-30 2016-04-06 Equip Outdoor Technologies Limited Sac à dos

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