EP0224613A1 - Semelle première - Google Patents

Semelle première Download PDF

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Publication number
EP0224613A1
EP0224613A1 EP85115543A EP85115543A EP0224613A1 EP 0224613 A1 EP0224613 A1 EP 0224613A1 EP 85115543 A EP85115543 A EP 85115543A EP 85115543 A EP85115543 A EP 85115543A EP 0224613 A1 EP0224613 A1 EP 0224613A1
Authority
EP
European Patent Office
Prior art keywords
latex foam
elevations
insole
foam
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.)
Granted
Application number
EP85115543A
Other languages
German (de)
English (en)
Other versions
EP0224613B1 (fr
Inventor
Wolfgang Dipl.-Ing. Anger
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.)
NITEX GmbH
Original Assignee
NITEX GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NITEX GmbH filed Critical NITEX GmbH
Priority to AT85115543T priority Critical patent/ATE46607T1/de
Priority to DE8585115543T priority patent/DE3573208D1/de
Publication of EP0224613A1 publication Critical patent/EP0224613A1/fr
Application granted granted Critical
Publication of EP0224613B1 publication Critical patent/EP0224613B1/fr
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined

Definitions

  • the foot remains moist. The result is that, especially when the foot does not work when sitting, the constant slight evaporation through the upper leather of the shoe lowers the temperature of the skin of the foot.
  • the microclimate i.e. temperature and humidity in the shoe, is a function of both endogenous and exogenous effects and, above all, different physical properties of the footwear, i.e. the stocking and the shoe.
  • Footwear also includes the insole in the shoe, which is of particular importance in this context, if this is equipped with useful properties, an additional movement of air between the foot and footwear can be brought about.
  • Latex foam which is produced by brushing under a doctor blade and has an open-cell structure, is particularly suitable as a component for an insole.
  • the very finely divided open pores of the foam are very elastic and are suppressed when walking the weight of the foot together and quickly expand again after relief due to the elasticity of the cell walls.
  • the sole When the sole is loaded, the air is pressed out of the open-cell latex foam and when the sole is relieved, when the foot is lifted off the floor, it is sucked in again. This creates a pumping movement in the pores of the foam, which brings about a vertical and also a horizontal movement of the more or less moist air between the sole of the foot and the insole of the shoe.
  • the highest air permeability due to open pores the largest amount of air that can be enclosed and the largest surface area of the cell walls to bind moisture in the air; on the other hand the highest elasticity and the lowest compressibility from the strength of the cell walls.
  • this latex foam has a specific weight of 0.18 to 0.20, i.e. of 180 to 200 kg per cbm and with the finest and most uniform cell structure possible.
  • the rebound elasticity can still be felt and the air volume in the foam can also be felt.
  • the air volume gives a feeling of pleasant warmth due to its heat-insulating effect, while walking it causes the moisture under the sole of the foot to decrease and the water vapor to be carried away from the sole of the foot to the upper of the shoe.
  • the elasticity of the latex foam when walking on hard ground serves as comfort.
  • a total thickness of the sole can be assumed, which should not exceed 3.5 mm for soles for women and 4 mm for men outside the cold season.
  • the textile side of the sole facing the foot must be permeable to air, but also sufficiently abrasion-resistant, especially in the areas of the heel and toes, and also help to make the sole sufficiently rigid. Otherwise it is difficult to insert the sole into the shoe, and the sole will contract in the shoe due to the movement of the foot, in particular the toes.
  • the range for the most appropriate structure and density of the coated foam is therefore quite narrow due to the mutually restricting properties. You can only expand it if you take away the homogeneity of the latex foam.
  • the object of the present invention is therefore to create an insole whose latex foam has two different structures and different densities of foam with a uniform thickness.
  • the sole should consist of a foam for the load-bearing, foot-supporting part, which is repeatedly distributed over the surface in the form of elevations such as ribs or cones.
  • This denser foam is said to be coarse-pored with a higher specific weight, to have closed cells and stronger cell walls. Accordingly, it is not very permeable to air, but is stiffer and more resistant to compression and has a greater resilience than the previously described "coated" foam that has been used to date.
  • This "painted" foam is now only supposed to enclose the supporting rib structure and fill it in terms of area. With him less attention has to be paid to the high rebound and the resistance to compression.
  • the ribs in the latex foam sole do not extend to longer lengths, but are only short lengths and then a small distance apart.
  • the gap made of open-pore latex foam also enables horizontal air movements.
  • the ribs should either be arranged in polygons or in be any other way. In any case, a system of spatial stiffness is to be achieved which at the same time results in the greatest possible bending stiffness in the longitudinal direction of the sole in the upward position of the textile layer. This can be achieved in particular in that the ribs, seen in the longitudinal direction of the sole, interlock and overlap in such a way that there is no straight or only slightly curved crease line transverse to the sole length.
  • the individual ribs can be straight, curved or kinked.
  • the ribs taper from the textile layer.
  • This latex foam which is more versatile in its properties, is just as inexpensive to produce as conventional, only coated, homogeneous latex foam.
  • the rib-shaped or conical elevations are to be applied to the textile layer by means of a sieve of appropriate wall thickness.
  • the elevations are gelled and slightly vulcanized and then serve as a form with the textile, into which the open-cell latex foam is poured in the usual way and brought to a uniform height by doctoring.
  • elevations are made of a latex foam which has a relatively large density and closed-pore structure, in contrast to the open-cell latex foam of layer 4.
  • the surface of layer 4 can be a little higher than the upper ends of elevations 3, it can but also end at about the same height as the highest of these surveys.
  • the elevations can have different heights.
  • the elevations 3 can contain active substances of various types and for different purposes or combinations of these active substances in the pores of their foam. These Active ingredients are incorporated into the latex foam, which is used to produce or to produce the elevations 3.
  • elevations 3 are produced from the latex foam.
  • any method of production which leads to elevations designed in this way is suitable, for example a method which is similar to the screen printing method can be used to produce such elevations.
  • the open-pore latex foam layer 4, in which these elevations are embedded, is produced and brushed on in a manner known per se after the elevations 3 have been produced and solidified on the textile layer 2.
  • insoles As is known, the production of insoles is carried out by punching out sheet-like, appropriately constructed material, so that the end face at the edge of the sole has partially open and partially closed cells or pores of the foam due to the punching process.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP19850115543 1984-11-22 1985-12-06 Semelle première Expired EP0224613B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT85115543T ATE46607T1 (de) 1985-12-06 1985-12-06 Einlegesohle.
DE8585115543T DE3573208D1 (de) 1985-12-06 1985-12-06 Insert soles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843442502 DE3442502A1 (de) 1984-11-22 1984-11-22 Einlegesohle

Publications (2)

Publication Number Publication Date
EP0224613A1 true EP0224613A1 (fr) 1987-06-10
EP0224613B1 EP0224613B1 (fr) 1989-09-27

Family

ID=6250824

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850115543 Expired EP0224613B1 (fr) 1984-11-22 1985-12-06 Semelle première

Country Status (2)

Country Link
EP (1) EP0224613B1 (fr)
DE (1) DE3442502A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0414634A2 (fr) * 1989-08-14 1991-02-27 Flawa Schweizer Verbandstoff- und Wattefabriken AG Insertion de chaussure et procédé de fabrication de celle-ci
GB2296177A (en) * 1994-12-20 1996-06-26 Chamberlain Vinyl Products Ltd Insole
WO2004012549A1 (fr) * 2002-07-29 2004-02-12 Paul Hartmann Ag Semelle
WO2007073830A1 (fr) * 2005-12-16 2007-07-05 Bauerfeind Ag Semelle a cambrure de soutien
DE102010008627A1 (de) * 2010-02-19 2011-08-25 Spannrit Schuhkomponenten GmbH, 63801 Schuheinlage mit Vlies

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5170572A (en) * 1991-05-31 1992-12-15 Insole Control, Inc. Tripod support insole
US20170340058A1 (en) * 2016-05-26 2017-11-30 Nike, Inc. Sole structure for article of footwear with sensory feedback system
DE102021118493A1 (de) 2021-07-16 2023-01-19 Dominik Stumpf Aus einem geschäumten Kunststoff bestehende Einlegesohle und Verfahren zu deren Herstellung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE20617E (en) * 1938-01-11 Shoe sole or the like and process of
GB907141A (en) * 1958-01-07 1962-10-03 Johannes Schaller Shoe sole construction
CH442721A (de) * 1966-06-29 1967-08-31 Semperit Ag Verbundsschaumkörper, insbesondere Matratzen und Kissen sowie Verfahren zur Herstellung derselben und Anlage zur Ausführung des Verfahrens
FR2553636A1 (fr) * 1983-10-21 1985-04-26 Adidas Chaussures Semelle intermediaire et chaussure comportant une telle semelle intermediaire

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055699A (en) * 1976-12-02 1977-10-25 Scholl, Inc. Cold insulating insole
DE3306425C2 (de) * 1983-02-24 1995-03-09 Designstart Ltd Polsterstanzteil

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE20617E (en) * 1938-01-11 Shoe sole or the like and process of
GB907141A (en) * 1958-01-07 1962-10-03 Johannes Schaller Shoe sole construction
CH442721A (de) * 1966-06-29 1967-08-31 Semperit Ag Verbundsschaumkörper, insbesondere Matratzen und Kissen sowie Verfahren zur Herstellung derselben und Anlage zur Ausführung des Verfahrens
FR2553636A1 (fr) * 1983-10-21 1985-04-26 Adidas Chaussures Semelle intermediaire et chaussure comportant une telle semelle intermediaire

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0414634A2 (fr) * 1989-08-14 1991-02-27 Flawa Schweizer Verbandstoff- und Wattefabriken AG Insertion de chaussure et procédé de fabrication de celle-ci
EP0414634A3 (en) * 1989-08-14 1992-03-11 Flawa Schweizer Verbandstoff- Und Wattefabriken Ag Footwear insert and fabricating method for it
US5392533A (en) * 1989-08-14 1995-02-28 Flawa Schweitzer Verbandstoff-Und Wattefabriken Ag Disposable shoe insole and method for making the same
GB2296177A (en) * 1994-12-20 1996-06-26 Chamberlain Vinyl Products Ltd Insole
WO2004012549A1 (fr) * 2002-07-29 2004-02-12 Paul Hartmann Ag Semelle
WO2007073830A1 (fr) * 2005-12-16 2007-07-05 Bauerfeind Ag Semelle a cambrure de soutien
US8042287B2 (en) 2005-12-16 2011-10-25 Bauerfeind Ag Insole comprising a curve support
DE102010008627A1 (de) * 2010-02-19 2011-08-25 Spannrit Schuhkomponenten GmbH, 63801 Schuheinlage mit Vlies
DE102010008627B4 (de) * 2010-02-19 2016-02-04 Spannrit Schuhkomponenten Gmbh Orthopädische Schuheinlage

Also Published As

Publication number Publication date
EP0224613B1 (fr) 1989-09-27
DE3442502A1 (de) 1986-05-22

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