EP2107876B1 - Foldable footwear - Google Patents

Foldable footwear Download PDF

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Publication number
EP2107876B1
EP2107876B1 EP07824240A EP07824240A EP2107876B1 EP 2107876 B1 EP2107876 B1 EP 2107876B1 EP 07824240 A EP07824240 A EP 07824240A EP 07824240 A EP07824240 A EP 07824240A EP 2107876 B1 EP2107876 B1 EP 2107876B1
Authority
EP
European Patent Office
Prior art keywords
sole
sole portion
shoe
rearward
flexible
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
EP07824240A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2107876A1 (en
Inventor
Steven Smith
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.)
Bacup Shoe Holding Co Ltd
Original Assignee
BACUP SHOE HOLDING Co Ltd
BACUP SHOE HOLDING Co 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=37872970&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2107876(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BACUP SHOE HOLDING Co Ltd, BACUP SHOE HOLDING Co Ltd filed Critical BACUP SHOE HOLDING Co Ltd
Publication of EP2107876A1 publication Critical patent/EP2107876A1/en
Application granted granted Critical
Publication of EP2107876B1 publication Critical patent/EP2107876B1/en
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
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/24—Collapsible or convertible
    • 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
    • A43B13/141—Soles; Sole-and-heel integral units characterised by the constructive form with a part of the sole being flexible, e.g. permitting articulation or torsion
    • 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
    • A43B13/16—Pieced soles
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/24—Collapsible or convertible
    • A43B3/246—Collapsible or convertible characterised by the sole
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use
    • A43B3/24—Collapsible or convertible
    • A43B3/248—Collapsible, e.g. foldable for travelling

Definitions

  • the present invention relates to footwear.
  • British patent GB 598,313 discloses a sandal having a sole which can be folded into a comparatively small volume for packing or carrying.
  • the sandal has an elongate sole which has a pair of hinged axes, each axis extending at right angles to a longitudinal axis of the sole, and having three sole parts corresponding to the instep, the ball of the foot and the heel of the foot.
  • the sandal is attached to a wearer's foot by means of plurality of straps which pass through slots formed in the sole.
  • the sole material may be either a synthetic resin plastic, wood, a plastics material, leather, rubber, a synthetic rubber composition, or a metal or alloy of metals, for example aluminum.
  • German patent DE 42 44 293 there is disclosed a sandal having a foldable sole and a detachable upper, in which the sole is made of a rigid material and which has a fixed hinge at an instep portion of the sole enabling the sole to be folded over onto itself so that a heel portion of the sole lies adjacent and abuts a forward portion of the sole corresponding to the toe region and ball of the foot.
  • a single hinge provided substantially at right angles to a main longitudinal axis of the sole is provided, with the hinge portion being provided at a portion of the sole corresponding to the forward part of the instep of the foot.
  • the shoe sole comprises independent parts which are made from a rigid or semi rigid material.
  • a first rigid sole portion is provided underneath the toe area and the ball of the foot, whilst a second rigid sole area is provided underneath the heel of the foot.
  • the forward and rearward rigid sole portions are permanently positioned away from each other and are connected by a relatively more flexible connecting upper sole portion which extends from a forward tip of the shoe to the rearward extent of the shoe, and overlies both the forward/wall sole portion and the rearward heel portion.
  • the shoe is foldable so that the sole folds over on itself with a bend occurring primarily at the instep portion, with the bend being provided by virtue of the flexibility of the flexible connecting sole portion.
  • the shoe can be rolled up, starting at the tip or the heel, and the tip and the heel can be folded inwards and the shoe subsequently folded at the center.
  • an emergency footwear being a sandal having a flexible sole portion which can be folded over at an Instep, with a tougher more durable toe and heel portion, spaced apart from each other by the instep portion.
  • the toe portion which also covers the ball of the foot and the heel portion are spaced apart from each other, so that the toe/ball of the sole portion and the heel portion each occupy approximately one third of the total area of the sole, with the other third of the sole comprising the instep portion which is flexible and is not covered on the underside with any more durable material.
  • the sandal is attached to the foot by means of a toe strap which extends over the bridge of the foot immediately behind the toes, a further strap extending from under the instep, and immediately forward of the ankle, and a heel strap which fits around the heel. There Is however no continuous upper portion, so that if a wearer steps in a puddle, or if it is raining, the wearer's feet will become wet.
  • Traditional known ballet pump type shoes consist of a one piece plastics or leather sole with a low heel, and a one piece upper which extends around and over the wearer's toes and the bridge of the foot, around the sides of the foot and around the heel.
  • US2006/0096124 describes a foldable shoe comprising a forward sole portion, a rear sole portion, a flexible connecting member connecting said forward and rear sole portions, and a flexible upper portion.
  • the flexible connecting member is hinge sole layer which consists of a thin wide strip of highly flexible rubber or other material with similar properties.
  • the flexible upper portion is a thong made of rubber and is employed to secure the sandal sole system to a person's foot.
  • US2526129 describes a flexible hinge having an unbonded structure that allows reducing internal stresses of the hinge.
  • the present invention aims to provide a temporary shoe which is easily foldable into a compact space and can therefore be carried in a ladies handbag, or a small carrying bag.
  • the shoes can be carried for use as an alternative to uncomfortable shoes, such as high heeled shoes or dress shoes, and is therefore particularly suitable for use by ladies.
  • a foldable shoe having a sole comprising:
  • said flexible connecting member allows the forward sole portion and the rear sole portion to separate from each other allowing the sole to adopt a folded condition. Whilst not necessarily touching each other, the forward and rear soles remain connected to each other by virtue of the their mutual connection to the connecting member.
  • said forward sole portion comprises a rear facing face positioned at a rearward portion of the forward sole.
  • said rear sole portion comprises a forward face positioned at a forward portion of said rear sole.
  • said forward facing face of the rear sole portion and the rearward facing face of the forward sole portion abut each other when the shoe is in an extended position; and when the shoe is in a non extended, folded or partially folded condition, the forward facing face of the rear sole portion and the rearward facing face of the forward sole portion separate from each other.
  • Said flexible upper portion is sufficiently flexible to allow said sole to fold over onto itself such that said forward sole portion overlies said rear sole portion and said flexible upper portion is sandwiched there-between; and a connecting member extending over a forward region of the rear sole portion and over a rearward region of the forward sole portion connects said forward a rear sole portions and said flexible upper portion.
  • Said flexible connecting member may be flexible enough such that when said shoe adopts a folded over condition in which the forward sole portion overlies said rear sole portion, the sole remains in a folded condition of its own accord without the need for any restraint to prevent the sole from reverting to an extended or partially folded condition.
  • the sole and/or uppers of the shoe may be patterned, coloured or embossed In various attractive patterns, and the fabric or other material of the upper may be manufactured from any of the full range of known shoe materials, subject to the requirement for flexibility and non resilience for the upper material.
  • each of said forward or rear sole portion is provided with a curved face for mating with a corresponding curved face of the other one of said forward or rear sole portion.
  • each of said forward or rear sole portion is provided with a sawtooth like face for mating with a corresponding sawtooth like face of the other one of said forward or rear sole portion.
  • each of said forward or rear sole portion is provided with one or a plurality of protrusions for engaging a corresponding recess on the other one of said forward or rear sole portions, so that the sole behaves as a rigid on piece sole when in extended mode, with the forward and rear sole portions locking together, but whilst still being separable when the shoe is folded over onto itself.
  • edges where the front and rear sales may be adapted to engage each other so that a front portion of said rear sole engages with a rear portion of said front sole to provide a substantially rigid joint between said front and rear sole portions when the sole portions are in extended condition for wearing said shoe.
  • shoe is used generically to include various different types of footwear including shoes, slippers; plimsoles, pumps, boots, sandals, and the like.
  • FIG 1 there is illustrated schematically in perspective view from one side a foldable shoe according to a specific embodiment of the present invention.
  • the foldable shoe comprises a forward sole portion 100 which lies underneath the toe area and ball of the foot of a wearer and underneath the front part of the instep of the foot; a rear sole portion 101 which lies under the heel area of the foot, and the rear part of the instep; an upper portion 102 which is bonded to the forward and rearward sole portions 100, 101 respectively; a flexible connecting sole portion connecting the front and rear sole portions; and a shoe liner which is placed inside the shoe over the forward sole portion and the rearward portion, and which is bonded to the forward and rearward sole portions and to the upper portion 102.
  • FIG 2 there is illustrated schematically in cut away view from one side the foldable shoe of figure 1 , in an extended form in which the forward and rearward sole portions each lie in substantially the same plane as each other.
  • the connecting portion 200 is bonded to a forward part of the rear sole portion 101 and to a rear part of the forward sole portion 100 and lies substantially flat when the shoe is in extended mode.
  • the inner liner 201 lies over the forward and rearward sole portions and over edges of the upper 102 which also lie over a peripheral region of each of the rear sole portion 101 and the forward portion 100, and lies over the flexible connecting portion 200.
  • the flexible connecting member extends across the width of the shoe at the instep, connecting the front and rear sole portions and the upper.
  • the upper 102 Is preferably formed from a flexible fabrics material.
  • fabrics materials can be used, including soft flexible leather, cloth or flexible plastics materials.
  • the forward and rearward sole portions are preferably formed from a durable and relatively rigid plastics material which has sufficient rigidity and durability to protect the wearers foot from sharp undulations in the ground, e.g. stones, pebbles or the like, and to spread the pressure of such obstacles and grounded irregularities, but also flexible enough to allow for some degree of comfort in the wearer in adapting to the shade of the foot of the wearer.
  • the materials of the upper are soft and comfortable to wear and yet offer some projection from rain, puddles etc.
  • the material of the sole should be durable enough for outdoor use, and provide enough rigidity to protect the foot from uneven surfaces, but also be of light weight.
  • the forward sole portion 100 abuts the rearward portion 101 at a position approximately mid way along the entire length of the sole, where the sole comprises the forward sole portion and the rearward sole portion, so that the meeting point between the forward and rearward sole lies underneath the instep of the wearers foot and away from the ball of the foot and toe area and away from the area where the users heel exerts the maximum pressure on the rear sole portion.
  • the sole may be provided with a molded in pattern or text on its ground facing part, which can be either molded in as part of the shape of the sole, or which can be included in a coloration of the plastics material used for manufacture of the sole.
  • the sole portions may also comprise a three dimensional pattern, in the example shown the forward sale portion has a periphery channel 300 which extends immediately inside the edge of the forward portion of the sole, and at a spacing of around 3 to 5 mm from the edge of the sole.
  • the rearward sole portion may also be provided with a pattern and/or indent In the example shown, an indented channel extending around the inside of the ground contacting part of the sole at a position between 2 and 5 mm from the edge of the rear sole portion is provided.
  • other sole patterns of conventional manner may be formed In the sole during the process of manufacture of the sole pieces.
  • FIG 4 there is illustrated in schematic view from one side the foldable shoe of figures 1 to 3 in partially folded over configuration.
  • the forward part of the sole 100 which is unconnected to the rear sole portion 101, other than by the flexible connecting portion 200 and the upper portion 102, folds over moving away from the rear sole portion, the rearward edge of the forward sole portion becoming spaced apart from the forward edge of the rear sole portion.
  • the forward part of the rear sole is not bonded to the connecting member over a length of around 2 to 9 mm from the edge of the sole, to allow the sole part to separate when the shoe is folded.
  • the rear part of the front sole is not bonded to the flexible connecting member over a length of around 2 to 9 mm from the front edge of the rear sole, to allow the shoe to fold over without straining the connecting member.
  • FIG. 5 there is illustrated schematically in view from underneath, the sole of the shoe in a partially folded condition, in which the forward sole portion 100 is disconnected from the rearward sole portion 101 so that a rearward face of the front sole portion does not abut a forward face of the rear heel sole portion, and the forward and rear sole portions are connected to each other by virtue of the flexible upper 102 and the flexible connecting sole member 200 which acts as a loose hinge between the forward and rear sole portions.
  • FIG. 6 there is illustrated schematically in view from the front of the shoe, the shoe In fully folded condition, in which the forward sole portion 100 lies substantially parallel and along side the rear sole portion 101. Shown in detail Is the rear face 600 of the front sole portion, and the forward face 601 of the rear sole portion, which match each other and cut through a cross section of the sole when in extended form.
  • the flexible connecting sole portion 200 is bonded to: the rear sole portion and the front sole portion, by means of adhesive, or being thermally set into the plastics sole material during manufacture.
  • the flexible connecting sole portion 200 is not bonded fully to the most forward extent of the rear of the sole portion, but rather there is a gap of around 3 to 8 mm where the flexible connecting sole portion 200 remains unbonded to the forward part of the rear sole portion.
  • the rear most portion of the front sole, across a width of the shoe remains unbonded for a length of around 3 to 8 mm from the flexible connecting sole portion 200, so that when the shoe is in a fully folded over condition, the flexible connecting member 200 is permitted to extend over a height of the fully folded shoe, and the shoe is not strained to revert to its extended position, and can therefore be easily and compactly folded.
  • a shape profile of the rear most face of the front sole matches a shape profile of the forward face of the rear sole, viewed in a direction parallel to a main longitudinal axes of the sole, so that when the shoe is in the extended position, the sole appears to be a continuous sole member, except for a hairline gap where the forward face of the rear sole on the rearward face of the forward sole abut each other.
  • fig 7 there is illustrated schematically in a view along a main longitudinal axes of the shoe, the shoe in fully folded over condition. Both the toe portion and the heel portion of the shoe are shown in end view, with the flexible material of the upper 102 being loosely compressed, allowing the shoe to close over into compact form, with the flexible upper being sandwiched between the heel sole portion 101 and the fore foot sole portion 100.
  • the flexible material of the upper 102 is soft and flexible enough to be easily compacted without resilience and without causing the shoe to spring open when in a folded over condition.
  • a pair of shoes as described herein should fold over and compact so as to fit within the average ladies handbag or clutch bag, so they can be unobtrusively carried on a night out, and should be light weight enough so as to be carried within a clutch bag.
  • the interface between the forward and rear sole portions 800, 801 respectively need not be a straight line or edge.
  • the interface between the rear portion of the forward sole portion and the forward portion of the rear sole portion may be a curved line, with a matching pair of wavy or curved contoured faces 802, 803 on the front and rear sole portions which abut or meet each other.
  • the curved surfaces may be configured to interlock with each other in an extended condition, so as to provide an interlocking of the front and rear sole portions in use due to the shaping of the surfaces, whilst at the same time allowing easy folding of the shoe.
  • the forward and rear sole portions may be adapted to engage each other so that a front portion of said rear sole engages with a rear portion of said front sole to provide a substantially rigid joint between said front and rear sole portions when the sole portions are in extended condition for wearing said shoe.
  • a jagged diamond shaped edge may be provided to each of the front and rear soles, so as to interlock at the meeting between the rear edge of the front sole and the front edge of the rear sole.
  • the periphery at the front of the rear sole may comprise a plurality of faces in an upright direction as viewed when the shoe is in normal extended mode as worn by a user, the faces being angled towards each other.
  • the periphery at the rear of the forward sole may comprise a corresponding set of interlocking faces which meet up with those of the front sole when the front and rear soles meet in the extended normal shoe use mode.
  • the front of the rear sole may resemble a sawtooth arrangement and similarly, the rear of the front sole portion may comprise a matching sawtooth which interlocks with the sawtooth on the rear sole.
  • the interlocking of the two sole halves may add rigidity to the sole and in extended mode provide a two part sole which, whilst being separable In folded mode behaves like a one piece moulded sole in an extended interlocked mode.
  • the faces at the rear of the front sole and the front of the rear sole may be made in a variety of interlocking or matching shapes, including sinusoidal undulating faces, channeled surfaces in a direction across the width of the shoe, or a combination of protrusions and recesses with protrusions on one face of the front or rear sole interlocking with corresponding recesses on the other one of the front or rear soles.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP07824240A 2007-01-30 2007-10-19 Foldable footwear Not-in-force EP2107876B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0701681A GB2446205B (en) 2007-01-30 2007-01-30 Foldable footwear
PCT/GB2007/003991 WO2008093035A1 (en) 2007-01-30 2007-10-19 Foldable footwear

Publications (2)

Publication Number Publication Date
EP2107876A1 EP2107876A1 (en) 2009-10-14
EP2107876B1 true EP2107876B1 (en) 2013-02-20

Family

ID=37872970

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07824240A Not-in-force EP2107876B1 (en) 2007-01-30 2007-10-19 Foldable footwear

Country Status (12)

Country Link
US (1) US20100018080A1 (es)
EP (1) EP2107876B1 (es)
JP (1) JP2010516366A (es)
CN (1) CN101594795A (es)
AU (1) AU2007345996B2 (es)
CA (1) CA2675668A1 (es)
ES (1) ES2354679T1 (es)
GB (1) GB2446205B (es)
MX (1) MX2009007902A (es)
RU (1) RU2009132545A (es)
WO (1) WO2008093035A1 (es)
ZA (1) ZA200904773B (es)

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KR101845063B1 (ko) * 2017-08-21 2018-04-03 류광록 착용이 용이한 접이식 운동화
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Also Published As

Publication number Publication date
GB2446205B (en) 2009-06-10
US20100018080A1 (en) 2010-01-28
ES2354679T1 (es) 2011-03-17
AU2007345996A1 (en) 2008-08-07
AU2007345996B2 (en) 2009-12-17
CN101594795A (zh) 2009-12-02
MX2009007902A (es) 2009-08-31
CA2675668A1 (en) 2008-08-07
GB0701681D0 (en) 2007-03-07
GB2446205A (en) 2008-08-06
ZA200904773B (en) 2010-04-28
WO2008093035A1 (en) 2008-08-07
JP2010516366A (ja) 2010-05-20
EP2107876A1 (en) 2009-10-14
RU2009132545A (ru) 2011-03-10

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