WO2019189585A1 - Sandale - Google Patents

Sandale Download PDF

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Publication number
WO2019189585A1
WO2019189585A1 PCT/JP2019/013623 JP2019013623W WO2019189585A1 WO 2019189585 A1 WO2019189585 A1 WO 2019189585A1 JP 2019013623 W JP2019013623 W JP 2019013623W WO 2019189585 A1 WO2019189585 A1 WO 2019189585A1
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WO
WIPO (PCT)
Prior art keywords
cardboard
layer double
layer
double
sided
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.)
Ceased
Application number
PCT/JP2019/013623
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English (en)
Japanese (ja)
Inventor
渡辺　雅之
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.)
Penguin Inc
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Penguin Inc
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Filing date
Publication date
Application filed by Penguin Inc filed Critical Penguin Inc
Publication of WO2019189585A1 publication Critical patent/WO2019189585A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B3/00—Footwear characterised by the shape or the use

Definitions

  • the present invention relates to a sandals with a sandals, a snare, and a front square.
  • An insole made of cardboard used for slippers and sandals is disclosed (see Patent Document 1).
  • This insole is attached to a footrest surface of a slipper or a sandal that does not have a peripheral wall at the rear portion and has a foot cover at the front portion.
  • the insole using the cardboard accommodated in the inside of shoes is disclosed (refer patent document 2).
  • This insole is made of a woven or non-woven fabric and shaped into an outer shape that can be accommodated inside the shoe, and an outer shape that is made of corrugated paper K liner (craft liner) material and can be accommodated inside the shoe.
  • the intermediate layer is formed from a core base paper made of corrugated cardboard, and the back layer is formed into an outer shape that can be accommodated in the shoe, and the surface layer, the intermediate layer, and the back layer are interposed through the adhesive layer. Are glued together.
  • the insole is formed with a large number of embosses protruding from the back surface toward the surface layer.
  • Patent Document 1 and Patent Document 2 The technology disclosed in Patent Document 1 and Patent Document 2 is an insole using cardboard used for slippers, sandals, and shoes, and does not constitute footwear by itself.
  • Corrugated cardboard has excellent cushioning properties and is used for cardboard boxes and rugs, and after use, it is reduced and recycled, and recycled as used paper.
  • corrugated cardboard it can be made cheaper than commercially available sandals, but if the overall weight of the wearer is on the sandals (corrugated cardboard), The corrugated structure of the core core is not restored while the core of the corrugated structure is crushed, the form as a sandals can not be maintained, and the function as sandals cannot be maintained. Therefore, you can not repeat wearing and taking off, can not withstand long-term use as sandals,
  • the premise of the present invention for solving the above-mentioned problem is a sandals provided with a sandals, a snare and a front floor.
  • the sand table is made of a plurality of cardboards stacked in layers in the vertical direction and fixed by a predetermined fixing means, and the cord and the front floor are fixed to the cardboard by the predetermined fixing means. There is in being.
  • a plurality of corrugated boards that are layered in the vertical direction are an upper corrugated board positioned on the top of the sandals, and an intermediate layer that is located on the winding of the sandals and fixed to the upper corrugated board by a predetermined fixing means. It is formed of cardboard and a lower layer corrugated cardboard that is located at the bottom of the grass stand and fixed to the middle cardboard by predetermined fixing means, and the rear end of the nose is fixed to the middle cardboard by the predetermined fixing means while penetrating the upper cardboard. The lower end portion of the front square is fixed to the middle layer cardboard by the predetermined fixing means while penetrating the upper layer cardboard.
  • the upper layer corrugated board is one upper double-sided cardboard
  • the middle layer corrugated board is three first to third middle-layer double-sided cardboards that overlap in the vertical direction
  • the lower layer cardboard is one lower-layer cardboard.
  • a lower surface of the liner of the upper-layer double-sided cardboard and the upper surface of the liner of the first-layered double-sided cardboard are fixed by a predetermined fixing means
  • the lower surface of the liner of the first-layered double-layered cardboard and the upper surface of the liner of the second-layered-layered cardboard Are fixed by a predetermined fixing means
  • the lower surface of the second middle-layer double-sided cardboard liner and the upper surface of the third middle-layer double-sided cardboard liner are fixed by a predetermined fixing means.
  • the lower surface and the upper surface of the lower-layer double-sided cardboard liner are fixed by a predetermined fixing means.
  • the upper double-sided cardboard and the first middle-layer double-sided cardboard overlap in the vertical direction in a state where the eye direction of the upper-layer double-sided cardboard intersects the eye direction of the first middle-layer double-sided cardboard.
  • the first middle-layer double-sided cardboard and the second middle-layer double-sided cardboard overlap in the vertical direction with the eye direction of the middle-layer double-sided cardboard and the second middle-layer double-sided cardboard intersecting, and the second middle-layer double-sided cardboard
  • the second middle-layer double-sided cardboard and the third middle-layer double-sided cardboard overlap in the vertical direction in a state where the eye direction of the third middle-layer double-sided cardboard intersects, In the crossed state, the third middle-layer double-sided cardboard and the lower-layer double-sided cardboard overlap in the vertical direction.
  • the area of the upper-layer double-faced cardboard and the area of the lower-layer double-faced cardboard are smaller than the area of the middle-layer double-faced cardboard, Extends radially outward.
  • the area of the first middle-layer double-faced cardboard and the area of the third middle-layer double-faced cardboard are smaller than the area of the second middle-layer double-faced cardboard, and the periphery of the second middle-layer double-faced cardboard is the first.
  • the middle layer double-sided cardboard and the third middle-layer double-sided cardboard extend radially outward.
  • At least one of waterproof processing and anti-slip processing is provided on at least the upper surface of the upper double-sided cardboard liner and the upper surface of the upper-layer double-sided cardboard liner. It has been subjected.
  • first and second upper-layer cardboards in which the upper cardboards overlap in the vertical direction
  • first and second middle-layer cardboards in which the middle cardboards overlap in the vertical direction
  • the first and second lower-layer corrugated cardboards are fixed to each other by a predetermined fixing means.
  • the lower surface of the liner of the second upper-layer corrugated cardboard and the upper surface of the liner of the first intermediate-layer corrugated cardboard are fixed by a predetermined fixing means, and the lower surface of the liner of the first intermediate-layer corrugated cardboard and the upper surface of the liner of the second intermediate-layer corrugated cardboard Are fixed by a predetermined fixing means, and the lower surface of the second middle-layer double-faced cardboard liner and the first lower-layer double-faced cardboard And the upper surface of the Inner is fixed by predetermined fixing means, the lower surface of the liner of the first lower layer double-sided corrugated cardboard and the upper surface of the liner of the second lower double-sided corrugated cardboard is fixed by predetermined fixing means.
  • the first upper-layer double-faced cardboard and the second upper-layer double-faced cardboard are vertically moved in a state where the eye direction of the first upper-layer double-faced cardboard intersects the eye direction of the second upper-layer double-faced cardboard.
  • the second upper-layer double-faced cardboard and the first middle-layer double-faced cardboard overlap in the vertical direction in a state where the eye direction of the second upper-layer double-faced cardboard intersects the eye direction of the first middle-layer double-faced cardboard, and the eyes of the first middle-layer double-faced cardboard
  • the first middle-layer double-sided cardboard and the second middle-layer double-sided cardboard overlap in the vertical direction with the direction intersecting the second middle-layer double-sided cardboard and the first lower-layer double-sided cardboard.
  • the second middle-layer double-sided cardboard and the first lower-layer double-sided cardboard overlap in the vertical direction with the eye direction of the cardboard intersecting, and both the eye direction of the first lower-layer double-sided cardboard and the second lower-layer cardboard
  • First lower sided corrugated cardboard and the second lower double-sided corrugated cardboard are overlapped in the vertical direction in a state in which the eye direction of the cardboard crossed.
  • the areas of the first and second upper-layer double-faced cardboards and the areas of the first and second lower-layer double-faced cardboards are smaller than the areas of the first and second middle-layer double-faced cardboards,
  • the peripheral portion of the second middle-layer double-faced cardboard extends radially outward from the peripheral edges of the first and second upper-layer double-faced cardboards and the first and second lower-layer double-faced cardboards.
  • the area of the first upper-layer double-faced cardboard is smaller than the area of the second upper-layer double-faced cardboard
  • the area of the second lower-layer double-faced cardboard is smaller than the area of the first lower-layer double-faced cardboard
  • 2 The peripheral edge of the upper double-sided cardboard extends radially outward from the peripheral edge of the first upper-layer double-faced cardboard
  • the peripheral edge of the first lower-layer double-faced cardboard extends radially outward from the periphery of the second lower-layer double-faced cardboard .
  • At least the upper surface of the first upper-layer double-sided cardboard liner and the lower surface of the second lower-layer double-sided cardboard liner have a waterproof process and an anti-slip process. At least one of them is applied.
  • the sandals are made of a plurality of cardboards that are layered in the vertical direction and fixed by predetermined fixing means, so that the total weight of the wearer is on the sandals (cardboards). Even if it takes, the weight can be supported by a plurality of cardboards, the core of the corrugated structure of the cardboard is not crushed, the form as a sandals can be maintained, and the function as sandals is retained. be able to.
  • sandals sandals made from a plurality of corrugated boards that overlap in the vertical direction have predetermined strength and durability, so they can be repeatedly put on and taken off and can withstand long-term use. Can do.
  • Sandals are made by laminating a plurality of cardboards in layers in the vertical direction, fixing the cardboards by predetermined fixing means, and fixing the thong and the front floor to the cardboard by predetermined fixing means. It can be made at low cost without much effort.
  • a plurality of corrugated boards stacked in layers in the vertical direction are an upper corrugated cardboard positioned at the top of the sand table, an intermediate corrugated cardboard secured to the upper corrugated board by a predetermined fixing means located at the top of the sand table, and the bottom of the sand table
  • the lower end of the front floor is fixed to the middle layer cardboard by a predetermined fixing means while the rear end of the nose is penetrating the upper layer cardboard.
  • the sandals are fixed to the middle-layer cardboard by a predetermined fixing means while penetrating the upper-layer cardboard, and the sandals are formed of an upper-layer cardboard, a middle-layer cardboard, and a lower-layer cardboard, which are layered in the vertical direction.
  • sandals Even if the entire weight falls on the sandals (upper cardboard, middle cardboard, lower cardboard), the upper cardboard, middle cardboard, and lower cardboard Thus, it is possible to support the weight enough, never core collapses within the corrugated structure thereof cardboard, it is possible to maintain the form as sandals base, it is possible to reliably hold the function as sandals.
  • Sandals have a predetermined strength and a predetermined durability, and the sandals formed from the upper layer cardboard, the middle layer cardboard, and the lower layer cardboard, which are layered in the vertical direction, can be repeatedly put on and taken off.
  • the upper-layer cardboard is one upper-layer double-sided cardboard
  • the middle-layer cardboard is the first to third middle-layered double-sided cardboards that overlap vertically
  • the lower-layer cardboard is one lower-layer double-sided cardboard
  • the upper-layer double-sided cardboard liner The lower surface of the first medium-layer cardboard liner and the upper surface of the liner of the first intermediate-layer cardboard are fixed by a predetermined fixing means, and the lower surface of the first intermediate-layer cardboard liner and the upper surface of the second intermediate-layer cardboard liner are fixed by predetermined fixing means.
  • the lower surface of the second middle-layer double-sided cardboard liner and the upper surface of the third middle-layer double-sided cardboard liner are fixed by a predetermined fixing means, and the lower surface of the third middle-layer double-sided cardboard liner and the upper surface of the lower-layer double-sided cardboard liner The sandals are fixed by a predetermined fixing means.
  • the first to third middle-layer double-sided cardboard and the lower-layer double-sided cardboard so that the overall weight of the wearer is on the sandals (upper-layer double-sided cardboard, first-third middle-layer double-sided cardboard, lower-layer double-sided cardboard) Even if it happens, the upper layer double-sided cardboard, the first to third middle-layer double-sided cardboard, and the lower-layer double-sided cardboard can sufficiently support their weight, and the core of the corrugated structure of these double-sided cardboards will not be crushed. Can be maintained, and the function as sandals can be reliably maintained.
  • Sandals are put on and taken off because the sandals formed from the upper double-layered cardboard, the first to third middle-layer double-sided cardboard, and the lower-layer double-sided cardboard that are layered in the vertical direction have predetermined strength and predetermined durability. Can withstand repeated use and can withstand long-term use.
  • the sandals are composed of an upper double-sided cardboard, a first to third middle-layer double-sided cardboard, and a lower-layer double-sided cardboard stacked in a vertical direction, and the lower surface of the upper-layer double-sided cardboard liner and the upper surface of the first middle-layer double-sided cardboard liner by a predetermined fixing means.
  • the lower surface of the liner of the first middle-layer double-sided cardboard and the upper surface of the liner of the second middle-layer double-sided corrugated cardboard by the predetermined fixing means, and the lower surface of the liner of the second middle-layer double-sided cardboard cardboard by the predetermined fixing means It is made by fixing the upper surface of the liner of the third middle-layer double-sided cardboard and fixing the lower surface of the third middle-layer double-sided cardboard liner and the upper surface of the lower-layer double-sided cardboard liner by a predetermined fixing means. Can be made at low cost.
  • the upper double-faced cardboard and the first middle-layer double-faced cardboard overlap in the vertical direction with the eye direction of the upper-layer double-faced cardboard and the eye direction of the first middle-layer double-faced cardboard intersecting, and the eye direction of the first middle-layer double-faced cardboard and the second middle-layer face
  • the first middle-layer double-sided cardboard and the second middle-layer double-sided cardboard overlap in the vertical direction with the eye direction of the cardboard intersecting, and the eye direction of the second middle-layer double-sided cardboard and the eye direction of the third middle-layer double-sided cardboard are In the crossed state, the second middle-layer double-sided cardboard and the third middle-layer double-sided cardboard overlap in the vertical direction, and the third middle-layer double-sided cardboard and the lower-layer double-sided cardboard intersect with each other.
  • Sandals with double-sided corrugated cardboard overlapping in the vertical direction are the corrugated structure of the corrugated structure of the upper double-sided cardboard and the first middle-layer double-sided cardboard.
  • the corrugated structure corrugated structure of the first middle-layer corrugated cardboard corrugated structure and the corrugated core structure of the second corrugated corrugated structure corrugated structure corrugated structure
  • the extending direction of the corrugated structure of the second middle-layer corrugated cardboard structure (eye direction) and the extending direction of the core of the corrugated structure of the third middle-layer corrugated cardboard (eyes direction) Direction) and the extension direction (eye direction) of the core of the corrugated structure of the third middle-layer double-faced corrugated cardboard intersects the extension direction (eye direction) of the core of the corrugated structure of the lower-layer double-faced corrugated cardboard Because the double-sided cardboards overlap each other in the vertical direction, the resistance of the double-sided cardboards against the compressive force in the vertical direction is increased compared to
  • the sandals are made of a sanding table formed of an upper double-sided cardboard, a first to a third middle-level double-sided cardboard, and a lower-layer double-sided cardboard that are layered vertically in a state where the extending direction (eye direction) of the center core intersects. Since it has strength and predetermined durability, it can be repeatedly put on and taken off, and can withstand long-term use.
  • the area of the first middle-layer double-faced cardboard and the area of the third middle-layer double-faced cardboard are smaller than the area of the second middle-layer double-faced cardboard, and the periphery of the second middle-layer double-faced cardboard is the periphery of the first middle-layer double-faced cardboard and the third middle-layer double-faced cardboard
  • the sandals that extend radially outward from the periphery of the middle-layer double-sided cardboard extend radially outward from the periphery of the upper-layer double-sided cardboard and the lower-layer double-sided cardboard, and the second middle-layer double-sided cardboard
  • the sandals can be further rounded, and the edge as sandals can be further improved.
  • Sandals in which at least one of waterproofing and anti-slip processing is applied to at least the upper surface of the upper double-sided corrugated cardboard liner and the lower surface of the lower-layer double-sided corrugated cardboard liner are, for example, an upper layer
  • waterproofing to the double-sided cardboard and lower-layer double-sided cardboard, it is possible to prevent moisture and moisture from penetrating from the upper-layer double-sided cardboard and lower-layer double-sided cardboard to the grass stand, and moisture and moisture permeate into the grass stand. It is possible to prevent a decrease in strength and durability.
  • the upper-layer double-sided cardboard and the lower-layer double-sided cardboard can have a non-slip function. It is possible to prevent slipping of the sandals against the ground contact surface.
  • the upper and lower corrugated boards are two first and second upper-layer corrugated boards
  • the middle corrugated boards are two first and second middle-layer corrugated boards
  • the lower corrugated boards are vertically overlapped 2
  • the first and second lower-layer double-faced cardboards, the lower surface of the liner of the first upper-layer double-faced cardboard and the upper surface of the liner of the second upper-layer double-face cardboard are fixed by a predetermined fixing means
  • the lower surface and the upper surface of the first middle-layer double-sided cardboard liner are fixed by a predetermined fixing means
  • the lower surface of the first middle-layer double-sided cardboard liner and the upper surface of the second middle-layer double-sided cardboard liner are fixed by a predetermined fixing means.
  • the lower surface of the second middle-layer double-faced cardboard liner and the upper surface of the first lower-layer double-faced cardboard liner are fixed to each other.
  • the sandals in which the lower surface of the first lower-layer double-sided cardboard liner and the upper surface of the second lower-layer double-sided cardboard liner are fixed by a predetermined fixing means are overlapped in layers in the vertical direction.
  • the weight of the corrugated structure of double-sided corrugated cardboard is not crushed, and the shape of the sandals is maintained. Bets can be, it is possible to reliably hold the function as sandals.
  • the sandals are composed of first and second upper-layer double-sided cardboards, first and second middle-layer double-sided cardboards, and first and second lower-layer double-sided cardboards that are layered in the vertical direction. Therefore, it can be repeatedly put on and taken off and can withstand long-term use.
  • first and second upper-layer cardboards, first and second middle-layer cardboards, and first and second lower-layer cardboards are layered in the vertical direction, and a liner for the first upper-layer cardboard by a predetermined fixing means. And the upper surface of the liner of the second upper-layer double-faced corrugated cardboard and the upper surface of the liner of the second upper-layer double-faced corrugated cardboard and the upper surface of the liner of the first middle-layer double-faced corrugated cardboard by the predetermined fixing means.
  • the first upper double-faced cardboard and the second upper-layer double-faced cardboard overlap in the vertical direction in a state where the eye direction of the first upper-layer double-faced cardboard intersects the eye direction of the second upper-layer double-faced cardboard.
  • the second upper-layer double-faced cardboard and the first middle-layer double-faced cardboard overlap in the vertical direction in a state where the eye directions of the first middle-layer double-faced cardboard intersect with each other,
  • the first middle-layer double-faced cardboard and the second middle-layer double-faced cardboard overlap in the vertical direction, and the second middle-layer double-faced cardboard and the first lower-layer double-faced cardboard intersect with each other.
  • the sandals in which the first lower layer double-sided cardboard and the second lower layer double-sided cardboard are overlapped in the vertical direction are the corrugated structure of the corrugated structure of the first upper-layer double-sided cardboard and the corrugated structure of the second upper-layer double-sided cardboard.
  • the core extension direction (medium direction) intersects, and the core extension direction (eye direction) of the corrugated structure of the second upper-layer double-faced corrugated cardboard and the core core extension of the first middle-layer double-faced corrugated cardboard
  • the extending direction (eye direction) of the core of the corrugated structure of the second middle-layer double-faced corrugated cardboard intersects with the extending direction (eye direction) of the core of the corrugated structure of the first lower-layer double-faced corrugated cardboard, 1 Lower layer cardboard
  • the double-faced cardboards overlap in the vertical direction.
  • the resistance force of the double-sided cardboards to the compressive force in the vertical direction increases, and the overall weight of the wearer is reduced to 1 and second upper-layer double-faced cardboard, first and second middle-layer double-faced cardboard, first and second lower-layer double-faced cardboard, and first and second upper-layer double-faced cardboard and first and second middle-layer double-faced cardboard,
  • the weight can be sufficiently supported by the first and second lower-layer corrugated cardboards, and the core of the corrugated structure of the double-sided corrugated cardboards is not crushed, and maintains the shape as a grass stand. It is possible to maintain the function as sandals.
  • Sandals consist of first and second upper-layer double-sided cardboards, first and second middle-layer double-sided cardboards, and first and second lower-layer double-sided cardboards that are stacked in layers in the vertical direction with the extending direction (eye direction) of the center core intersecting. Since the sand table formed from the above has a predetermined strength and a predetermined durability, it can be repeatedly put on and taken off and can withstand long-term use.
  • the areas of the first and second upper-layer double-faced cardboards and the areas of the first and second lower-layer double-faced cardboards are smaller than the areas of the first and second middle-layer double-faced cardboards, and the periphery of the first and second middle-layer double-faced cardboards is the first.
  • Sandals extending radially outward from the peripheral edges of the first and second upper-layer double-faced cardboards and the first and second lower-layer double-faced cardboards, the peripheral edges of the first and second middle-layer double-faced cardboards are both first and second upper-layer cardboards.
  • the peripheral edge of the sandals can be rounded, and the edge as sandals can be improved. Even if the sole of the wearer protrudes from the periphery of the liner of the first and second upper-layer cardboard, the sole touches the liner extending to the periphery of the first and second middle-layer cardboard. It is possible to prevent the sole of the wearer from protruding from the periphery of the wearer.
  • the area of the first upper-layer double-faced cardboard is smaller than the area of the second upper-layer double-faced cardboard
  • the area of the second lower-layer double-faced cardboard is smaller than the area of the first lower-layer double-faced cardboard
  • the periphery of the second upper-layer double-faced cardboard is the first upper layer Sandals that extend radially outward from the periphery of the double-faced cardboard and the peripheral edge of the first lower-layer double-faced cardboard extend radially outward from the periphery of the second-layer double-faced cardboard are the first and second middle-layer double-faced cardboards.
  • first and second upper-layer double-faced cardboards and the first and second lower-layer double-faced cardboards and the peripheral edge of the second upper-layer double-faced cardboard extends from the periphery of the first upper-layer double-faced cardboard.
  • the outer periphery of the first lower layer double-sided cardboard extends radially outward from the peripheral edge of the second lower-layer double-sided cardboard, so that the periphery of the sandals can be further rounded.
  • the observed end of the footwear can be further improved.
  • At least one of waterproof processing and anti-slip processing is applied to at least the upper surface of the first upper-layer double-faced cardboard liner among the upper surface of the first upper-layer double-faced cardboard liner and the lower surface of the second lower-layer double-faced cardboard liner.
  • sandals can be prevented from seeping water and moisture from the first upper double-sided cardboard and the second lower-layer double-sided cardboard into the sandals by waterproofing the first upper-layer double-sided cardboard and the second lower-layer double-sided cardboard.
  • first upper-layer double-sided cardboard and the second lower-layer double-sided cardboard can be provided with a non-slip function by applying anti-slip processing to the first upper-layer double-sided cardboard, so that the wearer wearing sandals This prevents slipping of the sole of the foot of the shoe in the footwear platform, and prevents slipping of the footwear against the ground contact surface.
  • FIG. 3 is a cross-sectional view taken along line AA in FIG. 2.
  • FIG. 3 is a cross-sectional view taken along line BB in FIG. 2.
  • the top view of the sandals of FIG. The bottom view of the sandals of FIG.
  • the side view of the sandals of FIG. FIG. 10 is a cross-sectional view taken along line CC in FIG. 9.
  • FIG. 10 is a sectional view taken along line DD in FIG. 9.
  • FIG. 1 is a perspective view of the sandals 10A shown as an example.
  • 2 is a top view of the sandals 10A of FIG. 1
  • FIG. 3 is a bottom view of the sandals 10A of FIG. 4 is a side view of the sandals 10A of FIG. 1
  • FIG. 5 is a cross-sectional view taken along line AA of FIG. 6 is a cross-sectional view taken along line BB in FIG. 2
  • FIG. 7 is an enlarged view showing a fixed state of the rear end portion 25 of the nose 12.
  • the vertical direction is indicated by an arrow X
  • the radial direction is indicated by an arrow Y.
  • the sandals 10A are provided with a sandals 11, a nose 12, and a front floor 13.
  • the grass stand 11 is made of a plurality of cardboards stacked in layers in the vertical direction. These corrugated boards are the upper corrugated board 15 located on the top 14 of the grass stand 11 (located in the uppermost layer), the middle corrugated board 17 located in the winding 16 of the sand stand 11 (located in the middle layer), and the sand board 11 It is formed from a lower layer corrugated cardboard 19 located at the bottom 18 (located at the lowermost layer).
  • the cardboard material (paper, synthetic resin) used for the sandals 11 of the sandals 10A (including the sandals 10B) is not particularly limited, and the cardboard of existing materials can be used, and the corrugated cardboard will be developed in the future. Can be used.
  • the upper-layer corrugated cardboard 15 is a single upper-layer double-faced cardboard 15a, and is formed into a sandals shape (grass shape) with a front and rear portion being substantially circular and a middle portion being substantially rectangular.
  • the upper double-sided cardboard 15a can be made from a rectangular double-sided cardboard raw material by die cutting.
  • the upper double-sided corrugated cardboard 15a is made of a front liner 20a and a back liner 21a, and a corrugated core 22a located between the liners 20a and 21a.
  • the planar shape of the upper double-sided cardboard 15a is not limited to that shown in the figure, and the planar shape of the upper-layer double-sided cardboard 15a can be formed into an arbitrary shape such as a clog shape, a snow shape, or a beach sandal shape.
  • an insertion hole 24 for inserting the lower end part 23 of the front grammage 13 is formed in the center of the front part of the upper double-sided cardboard 15a.
  • Insertion holes 26 for inserting the rear end portion 25 of the umbilical cord 12 are formed on both sides of the rear portion of the upper-layer double-sided cardboard 15a.
  • the upper surface 27a of the front liner 20a of the upper double-sided cardboard 15a is waterproofed and anti-slipted. For waterproofing, a waterproof coating agent or a waterproof film is used.
  • a waterproof coating agent is applied to the entire upper surface 27a of the front liner 20a of the upper double-sided cardboard 15a, or a waterproof film is applied to the entire upper surface 27a of the front liner 20a of the upper-layer double-sided cardboard 15a.
  • ⁇ Anti-slip coating or anti-slip rubber is used for anti-slip processing.
  • an anti-slip coating agent is applied on the waterproof coating agent or the waterproof film, or an anti-slip rubber is stuck on the waterproof coating agent or the waterproof film.
  • at least one of waterproof processing and anti-slip processing may be applied to the upper surface 27a of the front liner 20a of the upper double-sided cardboard 15a. Further, waterproofing or anti-slip processing may not be applied to the upper surface 27a of the front liner 20a of the upper double-sided cardboard 15a.
  • the middle layer corrugated cardboard 17 is formed of three first middle layer double-sided cardboards 17a, a second middle-layer double-sided cardboard 17b, and a third middle-layer double-sided cardboard 17c that overlap in the vertical direction.
  • the first to third middle-layer double-faced corrugated cardboards 17a to 17c have the same shape and the same size, and are formed in a sandals shape (grass shape) having a substantially circular front and rear portion and a substantially rectangular middle portion.
  • the first to third middle-layer double-sided cardboards 17a to 17c can be made by punching from a rectangular double-sided cardboard raw material.
  • an insertion hole 24 for inserting the lower end part 23 of the front grammage 13 is formed.
  • insertion holes 26 for inserting the rear end part 25 of the umbilical cord 12 are formed.
  • the planar shape of the first to third middle-layer double-sided cardboards 17a to 17c is not limited to that shown in the figure, and the planar shape of the first to third middle-layered double-sided cardboards 17a to 17c may be a clog shape, a snow shape, a beach sandal shape, etc. It can be formed into any shape.
  • the first middle-layer double-sided cardboard 17a is made of a front liner 28a and a back liner 29a and a corrugated core 30a located between the liners 28a and 29a.
  • the first middle-layer double-faced cardboard 17a is disposed immediately below the upper-layer double-faced cardboard 15a, and the peripheral edge 31 (outer peripheral edge) of the upper-layer double-faced cardboard 15a is radially inward (inner side) of the peripheral edge 32 (outer peripheral edge) of the first middle-layer double-faced cardboard 17a. ),
  • the upper surface 33a of the front liner 28a overlaps the lower surface 34a of the back liner 21a of the upper double-sided cardboard 15a.
  • the first middle-layer double-sided cardboard 17a is positioned directly below the upper-layer double-sided cardboard 15a in a state where its eye direction (extending direction of the center core 30a) intersects the eye direction of the upper-layer double-sided cardboard 15a (extension direction of the center core 22a). is doing.
  • the upper surface 33a of the front liner 28a of the first middle layer double-sided cardboard 17a is fixed to the lower surface 34a of the back liner 21a of the upper-layer double-sided cardboard 15a by an adhesive (predetermined fixing means) (not shown).
  • the adhesive is applied to the entire area of at least one of the lower surface 34a of the back liner 21a of the upper double-sided cardboard 15a and the upper surface 33a of the front liner 28a of the first middle-layer double-sided cardboard 17a, or partially applied to at least one of them.
  • the adhesive starch-based adhesive or hot-melt adhesive is used (the same applies to the following adhesives).
  • the second middle-layer double-sided cardboard 17b is made of a front liner 28b and a back liner 29b and a corrugated core 30b positioned between the liners 28b and 29b.
  • the second middle-layer double-sided cardboard 17b is disposed immediately below the first middle-layer double-sided cardboard 17a, and the peripheral edge 32 (outer peripheral edge) of the second intermediate-layer double-sided cardboard 17b coincides with the peripheral edge 32 (outer peripheral edge) of the first intermediate-layer double-sided cardboard 17a.
  • the upper surface 33b of the front liner 28b overlaps the lower surface 35a of the back liner 29a of the first middle-layer double-faced cardboard 17a.
  • the second middle-layer double-sided cardboard 17b has a first middle-layer double-sided cardboard 17a in a state in which the eye direction (extending direction of the middle core 30b) intersects the eye direction of the first middle-layer double-sided cardboard 17a (extension direction of the middle core 30a). It is located directly below.
  • the eye direction of the upper double-sided cardboard 15a (extending direction of the center core 22a) and the eye direction of the second middle-layer double-sided cardboard 17b (extending direction of the center core 30b) are substantially parallel.
  • the upper surface 33b of the front liner 28b of the second middle layer double-sided cardboard 17b is fixed to the lower surface 35a of the back liner 29a of the first middle-layer double-sided cardboard 17a by an adhesive (predetermined fixing means) (not shown).
  • the adhesive is applied to the entire area of at least one of the lower surface 35a of the back liner 29a of the first middle-sided cardboard 17a and the upper surface 33b of the front liner 28b of the second middle-layered cardboard 17b, or is partially applied to at least one of them. Has been applied.
  • the third middle-layer double-sided corrugated cardboard 17c is made of a front liner 28c and a back liner 29c, and a corrugated core 30c positioned between the liners 28c and 29c.
  • the third middle-layer double-faced cardboard 17c is disposed immediately below the second middle-layer double-faced cardboard 17b.
  • the third middle-layer double-faced cardboard 17c has a peripheral edge 32 (outer peripheral edge) and the first and second intermediate-layer double-faced cardboards 17a and 17b.
  • the upper surface 33c of the front liner 28c overlaps the lower surface 35b of the back liner 29b of the second middle-layer double-faced cardboard 17b.
  • the third middle-layer double-faced cardboard 17c has its eye direction (extending direction of the center core 30c) intersected with the eye direction of the second middle-layer double-faced cardboard 17b (extension direction of the center core 30b). It is located directly below. Note that the eye direction of the first middle-layer double-faced cardboard 17a (extending direction of the core 30a) and the eye direction of the third middle-layer double-faced cardboard 17c (extending direction of the core 30c) are substantially parallel.
  • the upper surface 33c of the front liner 28c of the third middle layer double-sided cardboard 17c is fixed to the lower surface 35b of the back liner 29b of the second middle-layer double-sided cardboard 17b by an adhesive (predetermined fixing means) (not shown). Yes.
  • the adhesive is applied to the entire area of at least one of the lower surface 35b of the back liner 29b of the second middle-sided cardboard 17b and the upper surface 33c of the front liner 28c of the third middle-layered cardboard 17c, or is partially applied to at least one of them. Has been applied.
  • the lower-layer corrugated cardboard 19 is a single lower-layer double-faced corrugated cardboard 19a, and is formed into a sandals shape (grass shape) having a substantially circular front and rear portion and a substantially rectangular middle portion.
  • the lower layer double-sided cardboard 19a can be made from a rectangular double-sided cardboard original fabric by die cutting.
  • the lower-layer double-sided corrugated cardboard 19a is made of a front liner 36a and a back liner 37a, and a corrugated core 38a located between the liners 36a and 37a.
  • planar shape of the lower-layer double-sided cardboard 19a is not limited to that shown in the figure, and the planar shape of the lower-layer double-sided cardboard 19a can be formed into an arbitrary shape such as a clog shape, a snow shape, or a beach sandal shape.
  • the lower-layer double-sided cardboard 19a is disposed immediately below the third middle-layer double-sided cardboard 17c, and the peripheral edge 39 (outer peripheral edge) of the lower-layer double-sided cardboard 19a is radially inward (inner side) of the peripheral edge 32 (outer-periphery) of the third middle-layer double-sided cardboard 17c. ),
  • the upper surface 40a of the front liner 36a overlaps the lower surface 35c of the back liner 29c of the third middle-layer double-faced cardboard 17c.
  • the lower layer double-sided cardboard 19a is directly below the third middle-layer double-sided cardboard 17c with its eye direction (extending direction of the center core 38a) intersecting the eye direction of the third middle-layer double-sided cardboard 17c (extension direction of the center core 30c). Is located.
  • the eye direction of the second middle-layer double-faced cardboard 17b (extending direction of the core 30b) and the eye direction of the lower-layer double-faced cardboard 19a (extending direction of the center core 38a) are substantially parallel.
  • the upper surface 40a of the front liner 36a is fixed to the lower surface 35c of the back liner 29c of the third middle-layer double-sided cardboard 17c by an adhesive (predetermined fixing means) (not shown).
  • the adhesive is applied to the entire area of at least one of the lower surface 35c of the back liner 29c of the third medium-sided cardboard 17c and the upper surface 40a of the front liner 36a of the lower-layer double-sided cardboard 19a, or partially applied to at least one of them. Has been.
  • the lower surface 41a of the back liner 36a of the lower-layer double-sided cardboard 19a is subjected to waterproof processing (waterproof coating agent, waterproof film, etc.) and anti-slip processing (non-slip coating agent, anti-slip rubber, etc.). ing.
  • waterproof processing a waterproof coating agent is applied to the entire lower surface 41a of the back liner 36a of the lower layer double-sided cardboard 19a, or a waterproof film is adhered to the entire lower surface 41a of the back liner 36a of the lower layer double-sided cardboard 19a.
  • an anti-slip coating agent is applied under the waterproof coating agent or the waterproof film, or an anti-slip rubber is stuck under the waterproof coating agent or the waterproof film.
  • waterproof processing and anti-slip processing may be applied to the lower surface 41a of the back liner 36a of the lower-layer double-sided cardboard 19a. Further, waterproofing or anti-slip processing may not be applied to the lower surface 41a of the back liner 36a of the lower-layer double-sided cardboard 19a.
  • the upper double-faced cardboard 15a, the first to third middle-layer double-faced cardboards 17a-17c, and the lower-layer double-faced cardboard 19a have the same shape, but the area of the upper-layer double-faced cardboard 15a and the area of the lower-layer double-faced cardboard 19a It is smaller than the area of the third middle-layer double-sided cardboards 17a to 17c.
  • the peripheral portions 42 of the first to third middle-layer double-faced cardboards 17a to 17c extend radially outward from the peripheral edges 31 and 39 of the upper-layer double-faced cardboard 15a and the lower-layer double-faced cardboard 19a.
  • the first to third middle-layer double-sided cardboards 17a to 17c have the same shape and size, but the area of the first middle-layer double-sided cardboard 17a and the area of the third middle-layer double-sided cardboard 17c are the second middle-layer double-sided cardboards. It may be smaller than the area of 17b.
  • the peripheral edge portion 42 of the second intermediate-layer double-faced cardboard 17b extends radially outward from the peripheral edges of the first intermediate-layer double-faced cardboard 17a and the third intermediate-layer double-faced cardboard 17c.
  • the cord 12 is a rope made by twisting chemical fiber or natural fiber.
  • the umbilical cord 12 extends in a pair from the front part of the sandals 11 toward the rear part. These umbilical cords 12 are inserted into insertion holes 26 whose rear end portions 25 are perforated on both sides of the upper layer double-sided cardboard 15a and the first and second middle-layer double-sided cardboards 17a and 17b. As shown in FIG. 7, the rear end portions 25 of the cords 12 cannot be separated into the first to third middle-layer corrugated cardboards 17a to 17c by the hot melt adhesive (predetermined fixing means) filled in the insertion holes 26. It is fixed.
  • a woven fabric or a knitted fabric can be used for the cord.
  • the front square 13 is a rope material similar to the rope 12.
  • the front tsubo 13 is located in the front part of the sandals 11 and extends in the vertical direction.
  • the front floor 13 is inserted into an insertion hole 24 whose lower end 23 is perforated in the center of the front part of the upper double-sided cardboard 15a and the first and second middle-layer double-sided cardboards 17a and 17b of the grass stand 11.
  • the lower end 23 of the front floor 13 is fixed to the first to third middle-layer double-sided cardboards 17a to 17c by a hot melt adhesive (predetermined fixing means) filled in the insertion hole 24 so as not to be separated.
  • a hot melt adhesive predetermined fixing means
  • a woven fabric and a knitting can be used for the front floor 13 besides a rope.
  • the sandals 10A are formed by punching out a rectangular corrugated cardboard to produce a plurality of upper double-sided cardboards 15a, a plurality of first to third middle-layer double-sided cardboards 17a-17c, and a plurality of lower-layer double-sided cardboards 19a.
  • a first middle-layer double-faced cardboard 17a is placed under the cardboard 15a
  • a second middle-layer double-faced cardboard 17b is placed under the first middle-layer double-faced cardboard 17a
  • a third middle-layer double-faced cardboard 17c is placed under the second middle-layer double-faced cardboard 17b.
  • the lower-layer double-sided cardboard 19a is stacked under the third middle-layer double-sided cardboard 17c, the double-sided cardboards 15a, 17a to 17c, 19a are fixed with an adhesive, and the rear end portion 25 of the cord 12 is inserted into the insertion hole 26.
  • the first to third middle-layer double-sided cardboards 17a to 17c are fixed with hot melt adhesive, and the lower end 23 of the front grammage 13 is inserted. While inserted into the hole 24 can be made from be secured to the first to third intermediate sided cardboard 17a-17c by hot melt adhesive.
  • the sandals 10A are formed of an upper double-sided cardboard 15a, a first to third middle-layer double-sided cardboards 17a-17c, and a lower-layer double-sided cardboard 19a in which the sandals 11 are layered in the vertical direction.
  • the extending direction (eye direction) of 22a intersects the extending direction (eye direction) of the corrugated core 30a of the first middle-layer double-faced cardboard 17a, and the corrugated core 30a of the first middle-layer double-faced cardboard 17a
  • the extending direction (eye direction) intersects the extending direction (eye direction) of the corrugated core 30b of the second middle-layer double-faced cardboard 17b, and the corrugated core 30b of the second middle-layer corrugated cardboard 17b extends.
  • the direction (eye direction) intersects the extending direction (eye direction) of the core 30c of the corrugated structure of the third middle-layer double-sided cardboard 17c, and the third middle-layer double-sided cardboard
  • the double-faced cardboards 15a, 17a 17c and 19a overlap in the vertical direction, so that the compressive force in the vertical direction is higher than the case where the extending directions (eye directions) of the cores 30a to 30c of the double-faced cardboards 15a, 17a to 17c and 19a are parallel.
  • the sandals 10A are composed of an upper double-sided cardboard 15a, first to third middle-layer double-sided cardboards 17a-17c, and a lower-layer double-sided cardboard 19a that are layered vertically in a state where the extending directions (eye directions) of the cores 30a-30c intersect. Since the sand table 11 formed from has a predetermined strength and a predetermined durability, it can be repeatedly put on and taken off and can withstand long-term use.
  • the sandals 10A are composed of an upper double-sided cardboard 15a, first to third middle-layer double-sided cardboards 17a-17c and a lower-layer double-sided cardboard 19a that are stacked in a vertical direction, and a lower surface 34a of a back liner 21a of the upper-layer double-sided cardboard 15a by a predetermined fixing means. And the upper surface 33a of the front liner 28a of the first middle-layer double-faced cardboard 17a, and the lower surface 35a of the back liner 29a of the first middle-layer double-faced cardboard 17a and the upper surface of the front liner 28b of the second middle-layer double-faced cardboard 17b by a predetermined fastening means.
  • the sandals 10A are such that the area of the upper double-sided cardboard 15a and the area of the lower-layer double-sided cardboard 19a are smaller than those of the first to third middle-layer double-sided cardboards 17a-17c, and the peripheral portions of the first to third middle-layer double-sided cardboards 17a-17c. 42 extends radially outward from the peripheral edges 31 and 39 of the upper double-sided cardboard 15a and the lower-layer double-sided cardboard 19a, so that the peripheral edge (outer peripheral edge) of the sandal 10A can be rounded. The edge can be improved.
  • the sandals 10A Even if the sole of the wearer protrudes from the peripheral edge 31 of the front liner 20a of the upper double-sided corrugated cardboard 15a, the sandals 10A have a sole on the front liner 28a extending to the peripheral part 42 of the first to third middle-layer double-sided cardboards 17a-17c. Is grounded, it is possible to prevent the sole of the wearer from protruding from the periphery of the sandals 10A.
  • the sandals 10A can prevent moisture and moisture from penetrating into the grass stand 11 from the upper double-sided cardboard 15a and the lower-layer double-sided cardboard 19a by waterproofing the upper-layer double-sided cardboard 15a and the lower-layer double-sided cardboard 19a. It is possible to prevent the strength and durability of the sand table 11 from being lowered due to permeation of the sand table 11. Further, by applying anti-slip processing to the upper double-sided cardboard 15a and the lower-layer double-sided cardboard 19a, the upper-layer double-sided cardboard 15a and the lower-layer double-sided cardboard 19a can be provided with a non-slip function. Can be prevented from slipping against the ground surface of the sandals 10A.
  • FIG. 8 is a perspective view of a sandals 10B shown as another example
  • FIG. 9 is a top view of the sandals 10B of FIG. 10 is a bottom view of the sandals 10B of FIG. 8
  • FIG. 11 is a side view of the sandals 10B of FIG. 12 is a cross-sectional view taken along the line CC of FIG. 9, and
  • FIG. 13 is a cross-sectional view taken along the line DD of FIG.
  • FIG. 14 is an enlarged view showing a fixed state of the rear end portion 25 of the chord 12.
  • the vertical direction is indicated by an arrow X
  • the radial direction is indicated by an arrow Y.
  • the sandals 10B are provided with a sandals 11, a cord 12 and a front floor 13.
  • the grass stand 11 is made of a plurality of cardboards stacked in layers in the vertical direction. These corrugated boards are the upper corrugated board 15 located on the top 14 of the grass stand 11 (located in the uppermost layer), the middle corrugated board 17 located in the winding 16 of the sand stand 11 (located in the middle layer), and the sand board 11 It is formed from a lower layer corrugated cardboard 19 located at the bottom 18 (located at the lowermost layer).
  • the upper layer corrugated cardboard 15 is formed of two first upper layer double-sided cardboards 15a and a second upper layer double-sided cardboard 15b that overlap in the vertical direction.
  • the first and second upper-layer double-sided cardboards 15a and 15b have the same shape, and are formed in a sandals shape (grass shape) in which the front and rear portions are substantially circular and the middle portion is substantially rectangular.
  • the first upper-layer double-sided cardboard 15a and the second upper-layer double-sided cardboard 15b can be made by punching from a rectangular double-sided cardboard raw material.
  • the first upper layer double-sided cardboard 15a is made of a front liner 20a and a back liner 21a and a corrugated core 22a positioned between the liners 20a and 21a.
  • planar shape of the upper double-sided cardboards 15a and 15b is not limited to that shown in the figure, and the planar shape of the upper-layer double-sided cardboards 15a and 15b can be formed into an arbitrary shape such as a clog shape, a snow shape, or a beach sandal shape. it can.
  • an insertion hole 24 for inserting the lower end 23 of the front grammage 13 is drilled.
  • insertion holes 26 for inserting the rear end part 25 of the umbilical cord 12 are formed.
  • the upper surface 27a of the front liner 20a of the first upper-layer double-faced cardboard 15a is subjected to waterproofing and anti-slip processing. The waterproof process and the anti-slip process are the same as those of the sandals 10A.
  • waterproof processing and anti-slip processing may be applied to the upper surface 27a of the front liner 20a of the first upper-layer double-faced cardboard 15a. Further, waterproofing or anti-slip processing may not be applied to the upper surface 27a of the front liner 20a of the first upper-layer double-sided cardboard 15a.
  • the second upper-layer double-faced cardboard 15b is disposed immediately below the first upper-layer double-faced cardboard 15a, and the peripheral edge 31a (outer peripheral edge) of the first upper-layer double-faced cardboard 15a is the radial direction of the peripheral edge 31b (outer peripheral edge) of the second upper-layer double-faced cardboard 15b.
  • the upper surface 27b of the front liner 20b is overlapped with the lower surface 34a of the back liner 21a of the first upper-layer double-sided cardboard 15a while being positioned inward (inner side).
  • the second upper-layer double-sided cardboard 15b has a first-upper double-sided cardboard 15a in a state in which its eye direction (extending direction of the center core 22b) intersects the eye direction of the first upper-layer double-sided cardboard 15a (extension direction of the center core 22a). It is located directly below.
  • the upper surface 27b of the front liner 20b of the second upper layer double-sided cardboard 15b is fixed to the lower surface 34a of the back liner 21a of the first upper-layer double-sided cardboard 15a by an adhesive (predetermined fixing means) (not shown). Yes.
  • the adhesive is applied to the entire area of at least one of the lower surface 34a of the back liner 21a of the first upper-layer double-faced cardboard 15a and the upper surface 27b of the front liner 20b of the second upper-layer double-faced cardboard 15b, or is partially applied to at least one of them. Has been applied.
  • the middle layer cardboard 17 is formed of two first middle layer double-sided cardboards 17a and second middle layer double-sided cardboards 17b that overlap in the vertical direction.
  • the first and second middle-layer double-faced cardboards 17a and 17b have the same shape and the same size, and are formed in a sandals shape (grass shape) in which the front and rear portions are substantially circular and the middle portion is substantially rectangular.
  • the first middle-layer double-sided cardboard 17a and the second middle-layer double-sided cardboard 17b can be made by punching from a rectangular double-sided cardboard raw material.
  • an insertion hole 24 for inserting the lower end portion 23 of the front grammage 13 is formed in the center of the front portion of the first middle-layer double-faced cardboard 17a.
  • first middle-layer double-sided cardboard 17a On both sides of the rear portion of the first middle-layer double-sided cardboard 17a, insertion holes 26 for inserting the rear end portion 25 of the umbilical cord 12 are formed.
  • the planar shape of the first and second middle-layer double-sided cardboards 17a and 17b is not limited to that shown in the figure, and the planar shape of the first and second middle-layered double-sided cardboards 17a and 17b may be a clog shape, a snowball shape, a beach sandal shape, etc. It can be formed into any shape.
  • the first middle-layer double-sided cardboard 17a is made up of a front liner 28a and a back liner 29a and a corrugated core 30a positioned between the liners 28a and 29a. It is made of a back liner 29b and a core 30b of a corrugated structure positioned between the liners 28b and 29b.
  • the first middle-layer double-faced cardboard 17a is disposed immediately below the second upper-layer double-faced cardboard 15b, and the peripheral edge 31b (outer peripheral edge) of the second upper-layer double-faced cardboard 15b is the radial direction of the peripheral edge 32 (outer peripheral edge) of the first middle-layer double-faced cardboard 17a.
  • the upper surface 27a of the front liner 28a is overlapped with the lower surface 34b of the back liner 21b of the second upper-layer double-faced cardboard 15b in a state of being located inward (inner side).
  • the first middle-layer double-faced corrugated cardboard 17a has its eye direction (extending direction of the center core 30a) intersecting the eye direction of the second upper-layer double-faced cardboard 15b (extension direction of the center core 22b). It is located directly below.
  • the eye direction of the first upper-layer double-faced cardboard 15a (extending direction of the center core 22a) and the eye direction of the first middle-layer double-faced cardboard 17a (extending direction of the center core 30a) are substantially parallel.
  • the upper surface 33a of the front liner 28a of the first middle layer double-sided cardboard 17a is fixed to the lower surface 34b of the back liner 21b of the second upper-layer double-sided cardboard 15b by an adhesive (predetermined fixing means) (not shown). Yes.
  • the adhesive is applied to the entire area of at least one of the lower surface 34b of the back liner 21b of the second upper-layer double-faced cardboard 15b and the upper surface 33a of the front liner 28a of the first middle-layer double-faced cardboard 17a, or is partially applied to at least one of them. Has been applied.
  • the second middle-layer double-sided cardboard 17b is disposed immediately below the first middle-layer double-sided cardboard 17a, and the peripheral edge 32 (outer peripheral edge) of the second intermediate-layer double-sided cardboard 17b coincides with the peripheral edge 32 (outer peripheral edge) of the first intermediate-layer double-sided cardboard 17a.
  • the upper surface 35b of the front liner 28b overlaps the lower surface 35a of the back liner 29a of the first middle-layer double-faced cardboard 17a.
  • the second middle-layer double-sided cardboard 17b has a first middle-layer double-sided cardboard 17a in a state in which the eye direction (extending direction of the middle core 30b) intersects the eye direction of the first middle-layer double-sided cardboard 17a (extension direction of the middle core 30a).
  • the eye direction of the second upper layer double-sided cardboard 15b (extending direction of the center core 22b) and the eye direction of the second middle-layer double-sided cardboard 17b (extending direction of the center core 30b) are substantially parallel.
  • the upper surface 33b of the front liner 28b of the second middle layer double-sided cardboard 17b is fixed to the lower surface 35a of the back liner 29a of the first middle-layer double-sided cardboard 17a by an adhesive (predetermined fixing means) (not shown). Yes.
  • the adhesive is applied to the entire area of at least one of the lower surface 35a of the back liner 29a of the first middle-sided cardboard 17a and the upper surface 33b of the front liner 28b of the second middle-layered cardboard 17b, or is partially applied to at least one of them. Has been applied.
  • the lower layer corrugated cardboard 19 is formed of two first lower layer double-sided cardboards 19a and a second lower layer double-sided corrugated cardboard 19b that overlap in the vertical direction.
  • the first and second lower-layer double-faced corrugated cardboards 19a and 19b have the same shape, and are formed into a sandals shape (grass shape) in which the front and rear portions are substantially circular and the middle portion is substantially rectangular.
  • the first lower-layer double-sided cardboard 19a and the second lower-layer double-sided cardboard 19b can be made by punching from a rectangular double-sided cardboard original fabric.
  • the first lower layer double-sided corrugated cardboard 19a is made of a front liner 36a and a back liner 37a and a corrugated core 38a positioned between the liners 36a and 37a. It is made of a back liner 37b and a corrugated core 38b located between the liners 36b and 37b.
  • the planar shape of the lower-layer double-sided cardboards 19a and 19b is not limited to that shown in the drawing, and the planar shape of the lower-layer double-sided cardboards 19a and 19b can be formed into any shape such as a clog-shaped, snow-drum, or flip-flop. it can.
  • the first lower-layer double-faced cardboard 19a is disposed immediately below the second middle-layer double-faced cardboard 17b, and the peripheral edge 39a (outer peripheral edge) of the first lower-layer double-faced cardboard 19a is the radial direction of the peripheral edge 32 (outer peripheral edge) of the second intermediate-layer double-faced cardboard 17b.
  • the upper surface 40a of the front liner 36a is overlapped with the lower surface 35b of the back liner 29b of the second middle-layer double-faced cardboard 17b while being positioned inward (inner side).
  • the first lower-layer double-sided cardboard 19a has a second middle-layer double-sided cardboard 17b in a state where its eye direction (extending direction of the middle core 38a) intersects the second-layered double-sided cardboard 17b (direction of extension of the middle core 30a). It is located directly below.
  • the eye direction of the first lower-layer double-faced cardboard 19a (extending direction of the center core 38a) and the eye direction of the first middle-layer double-faced cardboard 17a (extending direction of the center core 30a) are substantially parallel.
  • the upper surface 40a of the front liner 36a of the first lower layer double-sided cardboard 19a is fixed to the lower surface 35b of the back liner 29b of the second middle-layer double-sided cardboard 17b by an adhesive (predetermined fixing means) (not shown).
  • the adhesive is applied to the entire area of at least one of the lower surface 35b of the back liner 29b of the second middle-layer double-sided cardboard 17b and the upper surface 40a of the front liner 36a of the first lower-layer double-sided cardboard 19a, or is partially applied to at least one of them. Has been applied.
  • the second lower-layer double-faced cardboard 19b is disposed immediately below the first lower-layer double-faced cardboard 19a, and the peripheral edge 39b (outer peripheral edge) of the second lower-layer double-faced cardboard 19b is the radial direction of the peripheral edge 39a (outer peripheral edge) of the first lower-layer double-faced cardboard 19a.
  • the upper surface 40b of the front liner 36b is overlapped with the lower surface 41a of the back liner 37a of the first lower-layer double-sided cardboard 19a while being positioned inward (inner side).
  • the second lower layer double-sided cardboard 19b has a first lower-layer double-sided cardboard 19a with its eye direction (extending direction of the center core 38b) intersecting the eye direction of the first lower-layer double-sided cardboard 19a (extension direction of the center core 38a). It is located directly below.
  • the eye direction of the second lower-layer double-faced cardboard 19b (extending direction of the center core 38b) and the eye direction of the second middle-layer double-faced cardboard 17b (extending direction of the center core 30b) are substantially parallel.
  • the upper surface 40b of the front liner 36b of the second lower layer double-sided cardboard 19b is fixed to the lower surface 41a of the back liner 37a of the first lower-layer double-sided cardboard 19a by an adhesive (predetermined fixing means) (not shown).
  • the adhesive is applied to the entire area of at least one of the lower surface 41a of the back liner 37a of the first lower layer double-sided cardboard 19a and the upper surface 40b of the front liner 36b of the second lower layer double-sided cardboard 19b, or is partially applied to at least one of them. Has been applied.
  • the lower surface 41b of the back liner 37b of the second lower-layer double-sided cardboard 19b is subjected to waterproofing and anti-slip processing, although not shown.
  • the waterproof process and the anti-slip process are the same as those of the sandals 10A. It should be noted that at least one of waterproof processing and anti-slip processing may be applied to the lower surface 41b of the back liner 37b of the second lower layer double-faced cardboard 19b. Further, waterproofing or anti-slip processing may not be applied to the lower surface 41b of the back liner 37b of the second lower layer double-sided cardboard 19b.
  • the first and second upper-layer double-sided cardboards 15a and 15b, the first and second middle-layer double-sided cardboards 17a and 17b, and the first and second lower-layer double-sided cardboards 19a and 19b have the same shape.
  • the area of the two upper-layer double-faced cardboards 15a, 15b and the area of the first and second lower-layer double-faced cardboards 19a, 19b are smaller than the areas of the first and second middle-layer double-faced cardboards 17a, 17b.
  • the peripheral edge 42 of the first and second middle-layer double-faced cardboards 17a and 17b is the peripheral edge 31a, 31b, 39a and 39b of the first and second upper-layer double-faced cardboards 15a and 15b and the first and second lower-layer double-faced cardboards 19a and 19b. Extends radially outward.
  • the area of the first upper-layer double-faced cardboard 15a is smaller than the area of the second upper-layer double-faced cardboard 15b
  • the area of the second lower-layer double-faced cardboard 19b is smaller than the area of the first lower-layer double-faced cardboard 19a.
  • the peripheral edge of the second upper-layer double-faced cardboard 15b extends radially outward from the peripheral edge 31a of the first upper-layer double-faced cardboard 15a, and the peripheral edge of the first lower-layer double-faced cardboard 19a extends from the peripheral edge 39b of the second lower-layer double-faced cardboard 19b. Extends radially outward.
  • the snare 12 is the same as that of the sandals 10A of FIG. 1, and the rear end portion 25 is perforated on both sides of the rear portions of the first and second upper-layer corrugated cardboards 15a, 15b and the first middle-layer corrugated cardboard 17a of the sandal table 11.
  • the insertion hole 26 is inserted.
  • the rear end portions 25 of the chords 12 are connected to the second upper-layer double-faced cardboard 15b and the first and second middle-layer double-faced cardboards by a hot melt adhesive (predetermined fixing means) filled in the insertion holes 26. It is fixed to 17a and 17b inseparably.
  • the front floor 13 is the same as that of the sandals 10A of FIG.
  • the lower end 23 is perforated in the center of the front of the first and second upper-layer double-faced cardboards 15a and 15b and the first middle-layer double-faced cardboard 17a of the sandals 11
  • the insertion hole 24 is inserted.
  • the lower end portion 23 of the front floor 13 is formed of a second upper-layer double-faced cardboard 15b and first and second middle-layer double-faced cardboards 17a by hot melt adhesive (predetermined fixing means) filled in the insertion holes 24. , 17b are fixed inseparable from each other.
  • the sandals 10B are formed by punching out a rectangular corrugated cardboard original sheet, a plurality of first and second upper-layer double-sided cardboards 15a and 15b, a plurality of first and second middle-layer double-sided cardboards 17a and 17b, a plurality of first and second The second lower-layer double-sided cardboards 19a and 19b are prepared, the second upper-layer double-sided cardboard 15b is stacked below the first upper-layer double-sided cardboard 15a, the first middle-layer double-sided cardboard 17a is stacked below the second upper-layer double-sided cardboard 15b, A second middle-layer double-sided cardboard 17b is stacked under the middle-layer double-sided cardboard 17a, a first lower-layer double-sided cardboard 19a is stacked under the second middle-layer double-sided cardboard 17b, and a second lower-layer double-sided cardboard 19b is placed under the first lower-layer double-sided cardboard 19a.
  • double-sided cardboards 15a, 15b, 17a, 17b, 19a, 19b are fixed with an adhesive
  • 5 is fixed to the second upper-layer double-faced cardboard 15b and the first and second middle-layer double-faced cardboards 17a and 17b by hot melt adhesive while the lower end 23 of the front grammage 13 is inserted into the insertion hole 24. It can be made by fixing to the second upper-layer double-faced cardboard 15b and the first and second middle-layer double-faced cardboards 17a, 17b with a hot melt adhesive while being inserted.
  • the sandals 10B are composed of first and second upper-layer double-faced cardboards 15a and 15b, first and second middle-layer double-faced cardboards 17a and 17b, and first and second lower-layer double-faced cardboards 19a and 19b.
  • the extending direction (eye direction) of the corrugated core 22a of the first upper-layer double-faced cardboard 15a intersects with the extending direction (eye direction) of the corrugated core 22b of the second-upper-layer corrugated cardboard 15b.
  • the extending direction (eye direction) of the corrugated core 22b of the second upper-layer double-faced cardboard 15b intersects with the extending direction (eye direction) of the corrugated core 30a of the first intermediate-layer double-faced cardboard 17a, The extending direction (eye direction) of the core 30a of the corrugated structure of the first middle-layer double-faced cardboard 17a and the extension of the core 30b of the corrugated structure of the second-layer double-faced cardboard 17b.
  • the resistance force of 15a, 15b, 17a, 17b, 19a, 19b increases, and the overall weight of the wearer is a sandals (first and second upper-layer double-faced cardboards 15a, 15b, first and second middle-layer double-faced cardboards 17a, 17b , The first and second upper-layer double-sided cardboards 15a and 15b, the first and second middle-layer double-sided cardboards 17a and 17b, the first and second lower-layer cardboards 19a and 19b)
  • the corrugated cardboard 19a, 19b can sufficiently support its weight, and the corrugated cores 22a, 22b, 30a, 30b, 38a, 38b of the double-sided cardboards 15a, 15b, 17a, 17b, 19a, 19b are not crushed. And can maintain the form of the sandal
  • the sandals 10B include first and second upper-layer double-sided cardboards 15a and 15b that overlap in a vertical direction with the extending directions (eye directions) of the cores 22a, 22b, 30a, 30b, 38a, and 38b intersecting with each other.
  • the sand table 11 formed from the second middle-layer double-sided cardboards 17a and 17b and the first and second lower-layer double-sided cardboards 19a and 19b has a predetermined strength and a predetermined durability, so that it is repeatedly put on and taken off. Can withstand long-term use.
  • the sandals 10B are formed by laminating first and second upper-layer double-sided cardboards 15a and 15b, first and second middle-layer double-sided cardboards 17a and 17b, and first and second lower-layer double-sided cardboards 19a and 19b in a vertical direction,
  • the lower surface 34a of the back liner 21a of the first upper double-sided cardboard 15a and the upper surface 27b of the front liner 20b of the second upper-layer double-sided cardboard 15b are fixed by fixing means, and the back liner 21b of the second upper-layer double-sided cardboard 15b is fixed by predetermined fixing means.
  • the areas of the first and second upper-layer double-faced cardboards 15a, 15b and the areas 19a, 19b of the first and second lower-layer double-faced cardboards are smaller than the areas of the first and second middle-layer double-faced cardboards 17a, 17b.
  • the peripheral edge 32 of the first and second middle-layer double-faced cardboards 17a, 17b is a diameter from the peripheral edges 31a, 31b, 39a, 39b of the first and second upper-layer double-faced cardboards 15a, 15b and the first and second lower-layer double-faced cardboards 19a, 19b.
  • the area of the first upper-layer double-faced cardboard 15a is smaller than the area of the second upper-layer double-faced cardboard 15b, and the peripheral edge of the second upper-layer double-faced cardboard 15b extends radially from the peripheral edge 31a of the first upper-layer double-faced cardboard 15a. It extends outward and the area of the second lower layer double-sided cardboard 19b is smaller than the area of the first lower layer double-sided cardboard 19a. Since the peripheral edge of the first lower layer double-faced cardboard 19a extends radially outward from the peripheral edge 39b of the second lower-layer double-faced cardboard 19b, the peripheral edge of the sandblast 10B can be rounded, The edge can be improved.
  • the sandals 10B extend to the peripheral portion 32 of the second upper-layer double-sided cardboard 15b and the first and second middle-layer double-sided cardboards 17a and 17b. Since the sole touches the liner, it is possible to prevent the sole of the wearer from protruding from the periphery of the sandals 10B.
  • the sandals 10A provide water and moisture from the first upper double-sided cardboard 15a and the second lower-layer double-sided cardboard 19b to the grass stand 11 by waterproofing the first upper-layer double-sided cardboard 15a and the second lower-layer double-sided cardboard 19b. Therefore, it is possible to prevent the strength and durability of the sand table 11 from being lowered due to the penetration of moisture and moisture into the grass table 11. Further, by applying anti-slip processing to the first upper-layer double-sided cardboard 15a and the second lower-layer double-sided cardboard 19b, the first upper-layer double-sided cardboard 16a and the second lower-layer double-sided cardboard 19b can be provided with a non-slip function. It is possible to prevent slipping of the sole of the wearer who wears the sandals on the sand table 11 and to prevent slipping of the sandals 10B with respect to the ground contact surface.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

La présente invention aborde le problème de la réalisation d'une sandale qui est capable de maintenir la forme d'une base de sandale constituée de carton et aussi maintenir la fonction d'une sandale. La solution selon l'invention porte sur une sandale (10A) qui est pourvue d'une base de sandale (11), d'une sangle de sandale (12) et d'un entredoigt d'orteil (13). La base de sandale (11) est constituée de multiples morceaux de carton qui sont empilés verticalement en couches et sont amenés à adhérer les uns aux autres par des moyens d'adhérence prescrits. Les multiples pièces de carton empilées verticalement sont constituées : d'un carton de niveau supérieur (15) disposé au sommet (14) de la base de sandale (11) ; d'un carton de niveau intermédiaire (17) qui est disposé au niveau de la position de la portion latérale (16) de la base de sandale (11) et fermement fixé au carton de niveau supérieur (15) par des moyens d'adhérence prescrits ; et un carton de niveau inférieur (19) qui est disposé au fond (18) de la base de sandale (11) et fermement fixé au carton de niveau intermédiaire (17) par des moyens d'adhérence prescrits. La sangle de sandale (12) comprend des extrémités arrière qui pénètrent dans le carton de niveau supérieur (15) et sont fixées au carton de niveau intermédiaire (17) par des moyens de fixation prescrits, tandis que l'entredoigt d'orteil (13) possède une extrémité inférieure qui pénètre dans le carton de niveau supérieur (15) de manière à être fixée au carton de niveau intermédiaire (17) par des moyens de fixation prescrits.
PCT/JP2019/013623 2018-03-29 2019-03-28 Sandale Ceased WO2019189585A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-065221 2018-03-29
JP2018065221A JP7130227B2 (ja) 2018-03-29 2018-03-29 草履

Publications (1)

Publication Number Publication Date
WO2019189585A1 true WO2019189585A1 (fr) 2019-10-03

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ID=68060101

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/013623 Ceased WO2019189585A1 (fr) 2018-03-29 2019-03-28 Sandale

Country Status (2)

Country Link
JP (1) JP7130227B2 (fr)
WO (1) WO2019189585A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51110749U (fr) * 1975-03-05 1976-09-07
JP2002045202A (ja) * 2000-08-02 2002-02-12 Hiroo Morita 履 物
JP2010148636A (ja) * 2008-12-25 2010-07-08 Takuro Ikeda 靴中敷

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54175950U (fr) * 1978-05-27 1979-12-12
JPH01133401U (fr) * 1988-03-08 1989-09-11

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51110749U (fr) * 1975-03-05 1976-09-07
JP2002045202A (ja) * 2000-08-02 2002-02-12 Hiroo Morita 履 物
JP2010148636A (ja) * 2008-12-25 2010-07-08 Takuro Ikeda 靴中敷

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JP2019170872A (ja) 2019-10-10
JP7130227B2 (ja) 2022-09-05

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