EP0110909B1 - Semelle exterieure sans talon pour chaussures de sport - Google Patents

Semelle exterieure sans talon pour chaussures de sport Download PDF

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Publication number
EP0110909B1
EP0110909B1 EP19830901596 EP83901596A EP0110909B1 EP 0110909 B1 EP0110909 B1 EP 0110909B1 EP 19830901596 EP19830901596 EP 19830901596 EP 83901596 A EP83901596 A EP 83901596A EP 0110909 B1 EP0110909 B1 EP 0110909B1
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EP
European Patent Office
Prior art keywords
layer
sole
outsole
sole layer
foot
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.)
Expired
Application number
EP19830901596
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German (de)
English (en)
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EP0110909A1 (fr
Inventor
Michael Wolfgang Dipl.-Kfm. Schmohl
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Schmohl Michael Wolfgang Dipl-Kfm
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Individual
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Application filed by Individual filed Critical Individual
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/12—Soles with several layers of different materials
    • 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

Definitions

  • the invention relates to heelless outsoles for sports shoes comprising an inner sole layer and an outer sole layer forming the tread surface, the inner layer consisting of a lowdensity foamed plastics material and the outer layer is thin in comparison to the average thickness of the inner sole layer and consisting of a plastics material which has a higher density than the inner layer and having an opening which is filled by the less-dense material of the inner layer.
  • a heelless outsole of this type is disclosed in the international patent application WO 81/03 112 (PCT/US 81/00590).
  • the outer sole layer is thin in comparison to the average thickness of the inner sole layer and is formed of a relatively dense natural or synthetic ocmposition. It comprises openings in the ball section and/or in the heel section into which the relative lowdensity plastics material composition of the inner layer projects.
  • the inner sole layer also covers the outer sole layer on the inner side thereof with a relatively thin layer, the thickness of which increases from the toes to the heel.
  • the inner surface of the inner sole layer facing the sole of the foot is formed in a substantial flat manner and comprises recesses which are open at the top.
  • a heelless outsole for sports shoes which comprises an inner sole layer and an outer sole layer forming the tread surface, the inner layer consisting of a foamed plastics material and the outer material consisting of a wear-resistant material, whereby the inner sole provides a bedding and comprises a raised-up circumferential edge which passes around the heel portion of the foot and resiliently supports the heel while the outer sole is formed of a layer which is relatively thin with respect to the inner sole layer.
  • the inner face of the inner sole layer is practically flat and the thickness of the inner layer remains constant over the length of the sole.
  • FR-A-1 016468 a heelless outsole for shoes is disclosed which substantially consists of a continuous rubber sole of constant thickness.
  • This rubber sole does not have any openings, neither in the forefoot portion nor in the heel portion nor even in the area of the middle foot. Both, in the forefoot portion and in the heel portion there are provided only flat recesses proceeding from the lower side, in order to insert into the same by vulcanizing conformingly dimensioned patches resistant to wear, for instance made from leather. Practically these patches do not exert any influence on form stability, elasticity or resiliency of the sole as such. With the exception of wear resistance, all the characteristics of the sole are determined by the continuous rubber sole.
  • the inner sole layer provides a bedding with a surface anatomically profiled in longitudinal and lateral directions and comprises a raised-up circumferential edge which continuously passes around the sole of the foot and resiliently supports it on all sides while the opening of the outer sole is confined laterally by narrow edge strips integral with the remaining portions of the outer sole layer and extends over the entire width of the middle portion of the foot between the ball portion and the heel portion and has an approximately trapezoidal outline.
  • the outer sole provides a specific framelike bordering for the material of the inner sole which is in this area positively connected with the out sole. Thus, the inner sole material is prevented from being squeezed aside under higher loads which would give the wearer of the shoe a feeling as if the foot were floating on the outer shoe sole.
  • the profiled bedding for the sole of the foot and the raised up and surrounding edge of the inner sole layer which consists of denser material a bedding of the foot in the shoe which is effectively reliable and resiliently flexible on all sides, i.e. on the sole of the foot and the adjoining lateral faces of the foot, is ensured.
  • the profiled bedding for the sole of the foot considerable proportions of the forces which are effective laterally or longitudinally may be transmitted between the foot and the outsole, so that the edge, which reliably and resiliently supports the foot on all sides, is sufficient to take up reliably the remainder of the forces which are effective laterally or longitudinally.
  • the athlete's foot is also treated carefully to a large extent and is protected from anatomical overstressing even in the case of great stresses.
  • the high degree of elasticity of the arch of the foot is resiliently supported over the entire width of the central foot area as a result of the material of the inner sole layer projecting into the recessed region of the outer sole layer, the shape of the recess ensuring to a particularly great degree that the natural mobility of the foot and the support of the arch of the foot is ensured in a better manner than hitherto.
  • the elasticity of the arch of the foot between the front joint of the foot and the heel joint is not only completely maintained but is also resiliently supported by the resilient deformation of the less-dense material in the central foot region, impacts or the forces occurring during rapid acceleration are absorbed in a substantially improved cushioned manner, to which the large thickness of the less-dense material is a contributing factor.
  • the less-dense material in the central foot region extends over the entire width of this region of the foot, the material is also stretched in a frame-like manner at the level of the bearing surface at the sole edges by narrow strips made from the denser material, such that this material cannot move laterally when performing its resilient cushioning function.
  • the plastics material of the inner and outer sole layers which differ with respect to density may be of differing hardnesses.
  • the two plastics materials have a degree of hardness which is approximately the same, in spite of the differing densities.
  • the outsole 1 according to Figures 1 and 2 is intended for a sports shoe and comprises a heelless bearing surface 2 which, at least in the front foot region 3 and the heel area 4, may comprise profiling (not shown) specially adapted to the particular type of sport.
  • the outsole comprises an outer sole layer 18 which forms the bearing surface and is constructed as a relatively thin layer which is substantially restricted to the bearing surface and the thickness of which does not alter substantially over the extent thereof.
  • This outer sole layer consists of a wear-resistant material which is relatively dense and resistant to abrasion. In particular it consists of compact or only slightly foamed polyurethane.
  • the outer sole layer 18 is raised up in the form of a cap to form a shockproof edge 15, as may be seen from Figures 2 and 3.
  • the outer sole layer 18 comprises a region 20 which is recessed up to narrow edge strips 6, 7 made from the material of the outer sole layer 18, and which, moreover, between the ball section 3 and the heel section 4, extends over approximately the entire width of the central foot region 5.
  • the recessed region 20 comprises an approximately trapezoidal outline with boundary edges 8 to 11 extending in a curved manner.
  • the lateral edges 10 and 11 extend parallel to the edge of the sole, whereas the course of the front and rear boundary edges 8 and 9 is determined to a large extent by the profile pattern associated with the outer sole layer and not illustrated.
  • the outsole comprises an inner sole layer 19 made from a material which has a lower density with respect to the outer sole layer 18.
  • the inner sole layer 19 may consist of foamed polyurethane.
  • the inner sole layer 19 is shell-shaped.
  • the inner sole layer 19 comprises an edge 19a to 19c which passes all round the foot, supports it resiliently and laterally, and is raised upwards over the profiled bedding 22, 25, 26 for the sole of the foot.
  • the cap-like edge 15 of the outer sole layer 18 extends over a substantial part of the edge 19a of the shell-shaped inner sole layer 19, which is raised up in this region.
  • the material of the inner sole layer 19 also fills completely the recessed region 20 of the outer sole layer 18 and comprises a maximum thickness D in cooperation with the profiled bedding in this region.
  • the material-of the inner sole layer-projecting into the recess 20 is designated 21.
  • the material 21 is flush with the bearing surface.
  • the plastics materials of the two sole layers 18, 19 may have differing degrees of hardness.
  • the material of the inner sole layer 19 has a Shore A hardness which is up to a third less than the Shore A hardness of the material of the outer sole layer 18.
  • Both sole layers consist of polyurethane.
  • the density of the polyurethane of the outer sole layer 18 is advantageously two to three times higher than the density of the polyurethane of the inner sole layer 19.
  • the material of the outer sole layer 18 may consist of a compact to slightly foamed polyurethane with a gross density of approximately 1000 to 1200 kg/m 3 , whereas a foamed polyurethane which has a substantially lower gross density, namely between approximately 350 and 400 kg/m 3 , is used as the material for the inner sole layer 19.
  • the material of the outer sole layer 18 may have a Shore A hardness of 60 to 65°C and the material of the inner sole layer 19 may have a Shore A hardness of 40 to 45°C.
  • the materials of the outer and inner sole layers may be selected in the range from 55 to 65°C (Shore A).
  • the form of bedding for the sole of the foot is anatomically arranged so that it provides the sole of the foot with a reliable support without restricting the flexibility and the cushioning ability of the foot, it being possible for substantial proportions of the forces occurring to be absorbed and transmitted by this profiled bedding.
  • the thick layer 21 in the region of the recess 20 forms a resilient bridge which has a great cushioning ability and supports the elasticity of the arch of the foot and the mobility of the ankle.
  • a reduced resistance to wear of the sole in the region of the recess 20 does not have a disadvantageous effect since, in the said region, the bearing surface is only subject to slight stresses and wear.
  • the different materials may also be of different colours.
  • the thick region of low-density material 21 in the central foot region is also particularly well suited to keeping away from the foot foreign bodies which may act on the bearing surface in this region.
  • the outsole is very lightweight since the greater part consists of a material with a low density.
  • the rigid bordering of the material 21 in the region of the recess 20 prevents any lateral movement of the material when stressed. In this way cushioning occurs exclusively by way of the resilient deformation of this material, this entire material cushioning being distributed over wide regions of the intermediate sole and thus imparting great spring ability to the sports shoe.
  • the passage in the longitudinal direction of the outsole between the denser material of the outer sole layer 18 and the less dense material in the region of the recess 20 may also be formed gradually.
  • the outsole can be produced according to conventional methods, which need not be described in greater detail.

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

Abstract

Une semelle extérieure destinée à une chaussure de sport est constituée de préférence de polyuréthane ou d'un autre matériau plastique similaire. La semelle extérieure possède une couche de semelle interne en forme de coquille (19) pourvue d'un lit profilé et est constituée d'un matériau moins dense, et une couche de semelle externe plate (18) associée sensiblement uniquement avec la surface portante et constituée d'un matériau qui est plus dense que la couche interne (19). Dans la région centrale du pied, la couche externe (18) présente un évidement trapézoïdal (20) qui est enfermé sur tous les côtés par le matériau plus dense et au travers duquel le matériau moins dense de la semelle interne (19) se projette sur la surface portante.

Claims (6)

1. Semelle extérieure sans talon pour chaussures de sport, qui comprend une couche intérieure de semelle (19) et une couche extérieure de semelle (18) qui forme la surface de marche, la couche intérieure (19) étant formée d'une matière synthétique alvéolaire de faible masse volumique et la couche extérieure (18) étant mince en comparaison de l'épaisseur moyenne de la semelle intérieure et étant formée d'une matière synthétique qui a une plus grande masse volumique que la couche intérieure et présentant une ouverture (20) qui est remplie de la matière à moindre masse volumique de la couche intérieure, caractérisée par le fait que la couche intérieure de semelle (19) présente une surface extérieure (22, 25, 26) qui est profilée anatomiquement dans les directions longitudinale et latérale et présente un bord circonférentiel relevé (19a à 19d) qui s'étend de façon continue autour de la plante du pied et soutient cellei ci de façon souple de tous côtés tandis que l'ouverture (20) de la semelle extérieure (18) est limitée latéralement par d'étroites bandes marginales (6, 7) qui sont conçues d'une seule pièce avec les autres régions de la couche extérieure de semelle (18) et s'étend sur toute la largeur de la région centrale du pied, entre la région de l'éminence (3) et la région du talon (4) et présente un contour approximativement trapézoïdal.
2. Semelle extérieure selon la revendication 1, dans laquelle on utilise du polyuréthanne pour les deux couches de semelle (18, 19), la masse volumique du polyuréthanne de la couche extérieure de semelle (18) étant deux à trois fois plus grande que la masse volumique du polyuréthanne de la couche intérieure de semelle (19).
3. Semelle extérieure selon la revendication 1, dans laqeuelle les matières synthétiques des couches intérieure et extérieure de semelle présentent, avec des amsses volumiques différentes, approximativement le même degré de dureté.
4. Semelle extérieure selon la revendication 1, dans laquelle les matières synthétiques de la couche intérieure de semelle (19) présentent une dureté Shore A qui est jusqu'à trois fois inférieure à la dureté Shore A de la matière de la couche extérieure de semelle (18).
5. Semelle extérieure selon la revendication 1, dans laquelle la couche extérieure de semelle (18) est relevée latéralement comme un bord dans la région des orteils seulement pour former un rebord antérieur (15) et recouvrir au moins partiellement le bord relevé (19a) de la couche intérieure de semelle (19).
6. Semelle extérieure selon la revendication 1, dans laquelle le bord latéral (19a à 19d) de la couche intérieure de semelle (19) présente approximativement la même épaisseur que la couche extérieure de semelle (18).
EP19830901596 1982-05-28 1983-05-27 Semelle exterieure sans talon pour chaussures de sport Expired EP0110909B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823220215 DE3220215A1 (de) 1982-05-28 1982-05-28 Absatzlose laufsohle fuer schuhe, insbesondere zu sportzwecken
DE3220215 1982-05-28

Publications (2)

Publication Number Publication Date
EP0110909A1 EP0110909A1 (fr) 1984-06-20
EP0110909B1 true EP0110909B1 (fr) 1986-12-30

Family

ID=6164806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830901596 Expired EP0110909B1 (fr) 1982-05-28 1983-05-27 Semelle exterieure sans talon pour chaussures de sport

Country Status (5)

Country Link
EP (1) EP0110909B1 (fr)
JP (1) JPS59500947A (fr)
DE (2) DE3220215A1 (fr)
IT (1) IT1169730B (fr)
WO (1) WO1983004166A1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE33066E (en) * 1980-05-06 1989-09-26 Avia Group International, Inc. Shoe sole construction
ATA296283A (de) * 1983-08-18 1992-06-15 Distropat Ag Schuhsohle
US5181873A (en) * 1985-10-04 1993-01-26 Tolbert James H Water sport footware
US5575089A (en) * 1986-06-04 1996-11-19 Comfort Products, Inc. Composite shoe construction
US4724622A (en) * 1986-07-24 1988-02-16 Wolverine World Wide, Inc. Non-slip outsole
US4785557A (en) * 1986-10-24 1988-11-22 Avia Group International, Inc. Shoe sole construction
DE3716424A1 (de) * 1987-05-15 1988-12-01 Adidas Sportschuhe Laufsohle fuer sportschuhe
AU7324591A (en) * 1990-02-08 1991-09-03 Frampton E. Ellis Iii Shoe sole structures with deformation sipes
US5752330A (en) * 1992-06-10 1998-05-19 Snabb; John C. Athletic shoes with reverse slope sole construction
AU6777794A (en) * 1993-04-30 1994-11-21 Comfort Products, Inc. Composite shoe construction
AT403646B (de) * 1994-03-31 1998-04-27 Vital Schuhe Gmbh Schuhwerk, bei dem ein schaft entlang seines randes mit einer brandsohle verbunden ist
IL111172A (en) * 1994-10-04 1998-06-15 Yitzchak Zohar Shoes for reducing stress in feet
US5784809A (en) * 1996-01-08 1998-07-28 The Burton Corporation Snowboarding boot
ES2156676B1 (es) * 1998-08-06 2002-02-16 Trujillo Jose Salcedo Procedimiento para fabricar una plantilla anatomica y el producto obtenido.
EP1205121A1 (fr) * 2000-11-08 2002-05-15 Ipsa Semelle pour chaussure à usage professionnel
CA2537737C (fr) 2003-09-10 2012-10-23 Jas D. Easton, Inc. Article chaussant comprenant une structure de support unitaire et procede de fabrication correspondant
DE202005016740U1 (de) * 2005-10-25 2007-03-08 Shoe Fashion Group Lorenz Ag Schuhwerk mit integrierter Mittelfußrolle
ITTV20070046A1 (it) * 2007-03-16 2008-09-17 Angelo Scantamburlo Struttura di suola o soletta interna per calzature.
KR200467738Y1 (ko) * 2010-04-26 2013-07-02 박해수 충격을 흡수하고 압력집중을 완화하는 밑창 및 이를 포함하는 당뇨화
TWI809141B (zh) * 2018-07-13 2023-07-21 裕翔 邱 鞋底

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981003112A1 (fr) * 1980-05-06 1981-11-12 J Stubblefield Construction d'une semelle de chaussure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1016468A (fr) * 1950-04-19 1952-11-13 Raymond Simonet & Cie Soc Semelle composite et son mode de réalisation et d'assemblage avec les tiges de chaussures
FR1218101A (fr) * 1959-01-07 1960-05-09 Chaussures avec au moins une semelle
US4398357A (en) * 1981-06-01 1983-08-16 Stride Rite International, Ltd. Outsole
DE8126134U1 (de) * 1981-09-09 1982-02-04 Rucanor GmbH, 5030 Hürth "Sportschuh"

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981003112A1 (fr) * 1980-05-06 1981-11-12 J Stubblefield Construction d'une semelle de chaussure

Also Published As

Publication number Publication date
EP0110909A1 (fr) 1984-06-20
JPS59500947A (ja) 1984-05-31
DE3368498D1 (en) 1987-02-05
WO1983004166A1 (fr) 1983-12-08
IT1169730B (it) 1987-06-03
DE3220215A1 (de) 1983-12-01
IT8321183A0 (it) 1983-05-19

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