EP2437629B1 - Chaussure de confort et procédé - Google Patents

Chaussure de confort et procédé Download PDF

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Publication number
EP2437629B1
EP2437629B1 EP10783903.7A EP10783903A EP2437629B1 EP 2437629 B1 EP2437629 B1 EP 2437629B1 EP 10783903 A EP10783903 A EP 10783903A EP 2437629 B1 EP2437629 B1 EP 2437629B1
Authority
EP
European Patent Office
Prior art keywords
insole
elastic
shoe
footwear
pressure plate
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.)
Not-in-force
Application number
EP10783903.7A
Other languages
German (de)
English (en)
Other versions
EP2437629A4 (fr
EP2437629B8 (fr
EP2437629A2 (fr
Inventor
Nathan W. Crary
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.)
Cortina China Ltd
Original Assignee
FORME Ltd
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 FORME Ltd filed Critical FORME Ltd
Publication of EP2437629A2 publication Critical patent/EP2437629A2/fr
Publication of EP2437629A4 publication Critical patent/EP2437629A4/fr
Publication of EP2437629B1 publication Critical patent/EP2437629B1/fr
Application granted granted Critical
Publication of EP2437629B8 publication Critical patent/EP2437629B8/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/18—Resilient soles
    • A43B13/181—Resiliency achieved by the structure of the sole
    • A43B13/186—Differential cushioning region, e.g. cushioning located under the ball of the foot
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/38—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
    • A43B13/41—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process combined with heel stiffener, toe stiffener, or shank stiffener
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/42—Filling materials located between the insole and outer sole; Stiffening materials
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/02—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient
    • A43B17/023—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient wedge-like
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/04—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined with metal insertions or coverings
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/14—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined made of sponge, rubber, or plastic materials
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B21/00—Heels; Top-pieces or top-lifts
    • A43B21/24—Heels; Top-pieces or top-lifts characterised by the constructive form
    • A43B21/32—Resilient supports for the heel of the foot
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/1445—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the midfoot, i.e. the second, third or fourth metatarsal

Definitions

  • the present invention generally relates to a shoe that assists a user through a gait cycle, and more specifically, assists a user to maintain even foot pressure and proper alignment through the gait cycle.
  • the document US 2007/0033834 discloses an insole for insertion into a shoe providing cushioning and control of foot motion.
  • the insole includes a stability heel cradle and a number of pods on the underside of the insole core, wherein some of the pods have different material properties selected to help control foot motion.
  • One aspect of the present invention includes an article of footwear having a shoe body including an upper operably connected with an outsole.
  • the shoe body has a front portion and a back portion.
  • An insole is disposed inside the shoe upper and has an inelastic heel portion and a substantially elastic toe portion.
  • a rigid pressure plate is adjacent to the elastic toe portion.
  • Another aspect of the present invention includes an insert for an article of footwear having an insole including an inelastic heel portion and an elastic toe portion.
  • An elastic absorption pad is disposed below the inelastic heel portion.
  • a rigid pressure plate is adjacent to the elastic toe portion.
  • Yet another aspect of the present invention includes a method of modifying the gate of an individual, including providing a shoe having an upper operably coupled with an outsole.
  • An insole is inserted into the shoe.
  • An elastic toe portion is formed on the insole.
  • An inelastic heel portion is formed on the insole that is elevated above the substantially elastic toe portion.
  • An elastic absorption pad is connected below the inelastic heel portion.
  • a rigid pressure plate is formed adjacent to the elastic toe portion.
  • the shoe is placed on the foot of a user, thereby promoting a natural gait cycle during walking.
  • the reference numeral 10 generally designates a footwear system including a shoe 11 having an upper 12 operably connected with an outsole 14.
  • the shoe 11 has a front portion 16 and a back portion 18.
  • An insole 20 is disposed inside the shoe 11 and has a substantially inelastic heel portion 22 and a substantially elastic toe portion 24.
  • a substantially rigid pressure plate 26 is adjacent to the substantially elastic toe portion 24.
  • the shoe upper 12 of the shoe 11 is designed to generally conform to the foot of a user. It is contemplated that any of a variety of styles and designs may be used on the upper to provide an aesthetic appearance to the shoe 11.
  • the substantially rigid pressure plate 26 or pressure displacement rotation plate, as it is also called, is positioned in a forward portion of the shoe 11 proximate an elastic toe portion 24, as will be described in further detail below.
  • the substantially inelastic heel portion in conjunction with the substantially elastic toe portion 24 forms the insole 20, such that the insole 20 has metatarsal acceleration compression qualities.
  • the juncture of the substantially inelastic heel portion 22 and the substantially elastic toe portion 24 defines a lever that assists the wearer in walking with a more natural gait than is typical in traditional footwear.
  • This construction of the insole 20 provides a natural shoe-less type gait to the shoe wearer that causes the knee to bend quickly while the center of gravity of body mass of the shoe wearer transitions over the shoe 11.
  • the shoe 11 is generally designed to support the weight of the shoe wearer and assist in repositioning the body of the shoe wearer into an angle that promotes a natural gait cycle, which consequently engages the muscular system of a user and reduces the pressure on the skeletal system.
  • the shoe upper 12 includes side portions 40 that come together at the back portion 18 and that operably couple with the front portion 16.
  • a top portion 44 is integrally formed with a tongue 46.
  • the side portions 40, back 42, top portion 44, and the tongue 46 keep the shoe 11 on the foot of a wearer.
  • a transition portion 50 between the shoe upper 12 and the outsole 14 connects the outsole 14 with the shoe upper 12 and provides an aesthetic transition between the shoe upper 12 and the outsole 14.
  • the outsole 14 includes a base 52 that is made from a non-slip material, such as rubber, which interfaces with the ground when the shoe 11 is in use.
  • the substantially rigid pressure plate 26 is located between the outsole 14 and the substantially elastic toe portion 24.
  • the shoe 11 of the footwear system 10 of the present invention is specifically designed to reduce pressure on the forefoot and limit the strain on toes by promoting the natural motion of a foot through toe-off.
  • the shoe 11 also modifies and improves the gait of the wearer, such that the wearer puts less strain on the skeletal system.
  • the footwear system 10 enables the wearer to engage more of the human muscular system than provided by traditional footwear. More specifically, the footwear system 10 controls more movement and absorbs less impact during walking.
  • the pressure displacement rotation plate 26 and metatarsal acceleration compression insole 20 may be integrally or separately formed. In either instance, the pressure displacement rotation plate 26 and metatarsal acceleration compression insole 20 work together to provide support through the foot arch, absorb shock, and ease rotation of the foot through toe-off.
  • the insole 20 has a perimeter smaller than that of the outsole 14 and is disposed above and generally inside the perimeter of the outsole 14.
  • the interface of the insole 20 to the outsole 14 is illustrated in FIG. 2 , which illustrates that the insole 20 rests over the rigid pressure plate 26, which is supported by the outsole 14.
  • the rigid pressure plate 26 may be exposed through an underside of the outsole 14, as shown in FIG. 2 , or may be covered to prevent damage to the rigid pressure plate 26 and to keep the rigid pressure plate 26 clean.
  • a midsole (not shown) may be disposed anywhere between the insole and the outsole to add further comfort to the shoe generally.
  • the rigid pressure plate 26, or pressure displacement rotation plate begins no less than 40 percent forward from a distal heel end 60 of the shoe 11 and could extend rearward under the entire surface of the substantially inelastic heel portion 22.
  • the rigid pressure plate 26 extends forward, stopping no less than 15 percent rearward from a distal toe end 62 of the shoe 11. In one embodiment, it is contemplated that the rigid pressure plate 26 extends all the way to the distal toe end 62 of the shoe 11.
  • the rigid pressure plate 26 may be integrated into the insole 20, or separate from the insole 20. However, the rigid pressure plate 26 is generally located between the outsole 14 and the substantially elastic toe portion 24 of the insole 20.
  • the rigid pressure plate 26 may be constructed of a variety of materials, including carbon fiber or other composite material, such as fiberglass, steel, or injection plastics, such as nylons or TPUs, either with or without additional glass fiber reinforcement.
  • the insole 20 supports the foot of the wearer from an initial contact phase through a mid-stance phase of a gait cycle through use of a multi-density foam.
  • the inelastic heel portion 22 extends at least 20 percent and no more than 60 percent forward from the distal heel end 60.
  • the inelastic heel portion 22 is made of a foam with a density ranging from 35 degrees Shore C and up. It is contemplated that materials, such as PORON®, polyurethane, EVA, or other foam-based materials may be used.
  • the elastic toe portion 24 is forward of the inelastic heel portion 22, and extends no more than 80 percent rearward from the distal toe end 62 of the shoe 11.
  • the elastic toe portion 24 is formed from a less dense foam having a density of at least eight degrees Shore C less than the substantially inelastic heel portion 22.
  • Materials such as PORON®, polyurethane, EVA, or other foam-based materials are contemplated for use in the substantially elastic toe portion 24. Because the foam density decreases from the substantially inelastic heel portion 22 to the substantially elastic toe portion 24, during the gait cycle, heads of the metatarsals in the wearer's foot sink into the substantially elastic toe portion 24 at a forefoot drop zone 66 when the foot moves from a contact phase 68 to a mid-stance phase 70 ( FIG. 5B ) of the gait cycle.
  • the insole 20 includes a dual material top cover 80 or moderating layer.
  • the dual material top cover 80 allows for control of the direction of impact absorption during a gait cycle and movement of the foot in relation to the surface of the insole 20. More specifically, the dual material top cover 80 assists in transferring downward forces from the substantially inelastic heel portion 22 to the substantially elastic toe portion 24.
  • an elastic absorption pad 86 is disposed below the outsole 14 and wraps up the distal heel portion of the shoe 11.
  • the dual material top cover 80 includes an inelastic top cover 82 and an elastic top cover 84.
  • a thin layer 90 of soft foam may extend over the entire insole 20 covering both the substantially inelastic heel portion 22 and substantially elastic toe portion 24.
  • the thin foam layer 90 is disposed below the dual material top cover 80 and helps transition the foot of a wearer from the substantially inelastic heel portion 22 to the substantially elastic toe portion 24.
  • the thin foam layer 90 may be of any thickness, and in one embodiment, is 3 mm thick.
  • the rigid pressure plate 26 has a convex lateral cross-section that projects downward from a plantar surface of the insole 20 no less than two millimeters and up to 20 millimeters.
  • the degree of toe spring is affected by the amount and degree the rigid pressure plate 26 protrudes downward from the plantar surface of the insole 20. It is anticipated that the toe spring will range in degree from 15 degrees to 40 degrees.
  • the inelastic top cover 82 of the inelastic heel portion 22 forces the elastic absorption pad 86 to compress upward from the plantar surface. Consequently, impact forces are absorbed from the plantar or bottom surface.
  • This construction stabilizes the calcaneus and prevents the heel of a user from sinking into the heel portion of the insole 20. While the insole 20 compresses at the plantar surface at the substantially inelastic heel portion 22, the opposite effect is achieved in the substantially elastic toe portion 24.
  • the substantially elastic toe portion 24 allows for an elastic two or four-way stretch material to compress.
  • the elastic top cover 84 adjacent the substantially elastic toe portion 24 allows for impact forces to be absorbed from the dorsal or top surface downward through the insole 20. Consequently, pressure is reduced on sensitive areas of the foot, including the metatarsals.
  • the substantially elastic toe portion 24 and the elastic top cover 84 flex as the wearer roles from the substantially inelastic heel portion 22 to the substantially elastic toe portion 24 from the mid-stance phase 70 ( FIG. 5B ) through the toe-off phase 72 ( FIG. 5C ) of the gait cycle. Accordingly, there is an increased acceleration of the substantially elastic toe portion 24 into the forefoot drop zone 66 compared to the drop rate of the calcaneus, at which point the foot will plantar shift in a smooth and comfortable manner.
  • the shoe 11 of the present invention and specifically the insole 20 disposed in the shoe 11, work to reposition the body's angle into a natural gait cycle to promote further engagement of the muscular system.
  • the forefoot is accelerated downward into the soft and easily compressible substantially elastic toe portion 24 area, which causes the body to decelerate.
  • the rigid pressure plate 26 and the substantially inelastic heel portion 22 then cause the knee to bend quickly, while the body mass transitions over the center of gravity. This transition engages the muscular system, allowing it to absorb any additional forces that are incurred while walking. Consequently, the amount of effort to walk is increased as a result of increased core muscle activity, but greatly reduces the impact of the skeletal system and joints.
  • the convex design of the rigid pressure plate 26 allows the forefoot pressure to spread across the entire surface of the rigid pressure plate 26, thereby translating impact forces over the entire surface of the rigid pressure plate 26 and improving the natural gait cycle.
  • This construction gives cushioning and support under the foot, while assisting the body to move naturally, as if the user was not wearing shoes at all. Consequently, the rigid pressure plate 26 works in combination with the insole 20 to assist the foot in rotating properly through toe-off to achieve a proper gait cycle. Consequently, pressure is redistributed and muscle use has increased.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Claims (20)

  1. Article chaussant (10) comprenant :
    un corps de chaussure incluant une tige (12) connectée de manière fonctionnelle à une semelle extérieure (14), le corps de chaussure incluant une partie frontale (16) et une partie dorsale (18) ;
    une semelle intérieure (20) disposée à l'intérieur de la tige de chaussure (12) et présentant une partie talon inélastique (22) et une partie bout élastique (24) ;
    l'article chaussant (10) étant caractérisé en ce qu'il comprend en outre :
    une plaque de pression rigide (26) adjacente à la partie bout élastique.
  2. Article chaussant selon la revendication 1, comprenant en outre :
    un tampon d'absorption élastique (86) disposé entre la partie talon inélastique (22) et la semelle extérieure (14).
  3. Article chaussant selon la revendication 1, comprenant en outre :
    une semelle intercalaire disposée entre la semelle intérieure et la semelle extérieure.
  4. Article chaussant selon la revendication 1, dans lequel l'épaisseur de la partie talon inélastique (22) est approximativement deux fois celle de la partie bout élastique (24).
  5. Article chaussant selon la revendication 1, dans lequel la plaque de pression (26) inclut une partie convexe alignée avec les métatarsiens d'un utilisateur.
  6. Article chaussant selon la revendication 1, comprenant en outre :
    une couche de modération (80) disposée sur la semelle intérieure.
  7. Article chaussant selon la revendication 6, dans lequel la couche de modération (80) inclut une partie arrière (82) construite à partir d'un matériau inélastique et une partie avant (84) construite à partir d'un matériau élastique.
  8. Article chaussant selon la revendication 1, comprenant en outre :
    un levier défini entre la partie talon inélastique et la partie bout élastique qui translate l'énergie descendante depuis la partie dorsale vers la partie frontale.
  9. Insert pour un article chaussant comprenant :
    une semelle intérieure (20) présentant une partie talon inélastique (22) et une partie bout élastique (24) ;
    un tampon d'absorption élastique (86) disposé sous la partie talon inélastique (22) ;
    l'insert étant caractérisé en ce qu'il comprend en outre :
    une plaque de pression rigide (26) adjacente à la partie bout élastique (24).
  10. Insert selon la revendication 9, comprenant en outre :
    une semelle intercalaire disposée entre la semelle intérieure et la semelle extérieure.
  11. Insert selon la revendication 9, dans lequel l'épaisseur de la partie talon inélastique (22) est approximativement deux fois celle de la partie bout élastique (24).
  12. Insert selon la revendication 9, dans lequel la plaque de pression rigide (26) inclut une partie convexe alignée avec les métatarsiens d'un utilisateur.
  13. Insert selon la revendication 9, comprenant en outre :
    une couche de modération (80) disposée sur la semelle intérieure (20).
  14. Insert selon la revendication 13, dans lequel la couche de modération (80) inclut une partie arrière (82) construite à partir d'un matériau inélastique et une partie avant (84) construite à partir d'un matériau élastique.
  15. Insert selon la revendication 9, comprenant en outre :
    un levier défini entre la partie talon inélastique et la partie bout élastique qui translate l'énergie descendante depuis la partie dorsale vers la partie frontale.
  16. Procédé de modification de la démarche d'un individu, le procédé comprenant :
    la fourniture d'une chaussure ayant une tige couplée de manière fonctionnelle à une semelle extérieure ;
    l'insertion d'une semelle intérieure dans la chaussure ;
    la formation d'une partie bout élastique sur la semelle intérieure ;
    la formation d'une partie talon inélastique sur la semelle intérieure qui est élevée au-dessus de la partie bout élastique ;
    le procédé étant caractérisé en ce qu'il comprend en outre :
    la formation d'une plaque de pression rigide adjacente à la partie bout élastique ;
    la connexion d'un tampon d'absorption élastique en dessous de la partie talon inélastique ;
    le placement de la chaussure sur le pied d'un utilisateur, pour ainsi favoriser un cycle de démarche naturelle pendant la marche.
  17. Procédé selon la revendication 16, comprenant en outre :
    la fourniture d'une plaque de pression rigide adjacente à la partie bout élastique de la semelle intérieure.
  18. Procédé selon la revendication 17, dans lequel l'étape de fourniture d'une plaque de pression rigide comprend en outre :
    la formation d'une seule pièce de la semelle intérieure avec la plaque de pression rigide.
  19. Procédé selon la revendication 16, comprenant en outre :
    le positionnement d'un revêtement supérieur en double matériau sur la semelle intérieure.
  20. Procédé selon la revendication 16, comprenant en outre :
    le positionnement d'une semelle intercalaire entre la semelle intérieure et la semelle extérieure.
EP10783903.7A 2009-06-02 2010-06-01 Chaussure de confort et procédé Not-in-force EP2437629B8 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21770809P 2009-06-02 2009-06-02
PCT/US2010/036834 WO2010141425A2 (fr) 2009-06-02 2010-06-01 Chaussure de confort et procédé

Publications (4)

Publication Number Publication Date
EP2437629A2 EP2437629A2 (fr) 2012-04-11
EP2437629A4 EP2437629A4 (fr) 2017-04-05
EP2437629B1 true EP2437629B1 (fr) 2018-11-28
EP2437629B8 EP2437629B8 (fr) 2019-02-27

Family

ID=43298435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10783903.7A Not-in-force EP2437629B8 (fr) 2009-06-02 2010-06-01 Chaussure de confort et procédé

Country Status (13)

Country Link
US (1) US20120137542A1 (fr)
EP (1) EP2437629B8 (fr)
JP (1) JP5677417B2 (fr)
KR (1) KR20120133367A (fr)
CN (1) CN102573554A (fr)
AU (1) AU2010256884A1 (fr)
BR (1) BRPI1011079A2 (fr)
CA (1) CA2764304A1 (fr)
MX (1) MX2011012922A (fr)
RU (1) RU2524894C2 (fr)
SG (1) SG176192A1 (fr)
WO (1) WO2010141425A2 (fr)
ZA (1) ZA201108855B (fr)

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JP5677417B2 (ja) 2015-02-25
AU2010256884A1 (en) 2011-12-08
WO2010141425A2 (fr) 2010-12-09
JP2012528688A (ja) 2012-11-15
ZA201108855B (en) 2012-09-26
SG176192A1 (en) 2012-01-30
EP2437629A4 (fr) 2017-04-05
CN102573554A (zh) 2012-07-11
MX2011012922A (es) 2012-06-27
RU2011152604A (ru) 2013-07-20
US20120137542A1 (en) 2012-06-07
RU2524894C2 (ru) 2014-08-10
KR20120133367A (ko) 2012-12-10
CA2764304A1 (fr) 2010-12-09
EP2437629B8 (fr) 2019-02-27
BRPI1011079A2 (pt) 2016-03-15
WO2010141425A3 (fr) 2011-03-24
EP2437629A2 (fr) 2012-04-11

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