EP0044549A1 - Semelle à garniture incorporée résistant au percement - Google Patents

Semelle à garniture incorporée résistant au percement Download PDF

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Publication number
EP0044549A1
EP0044549A1 EP19810105694 EP81105694A EP0044549A1 EP 0044549 A1 EP0044549 A1 EP 0044549A1 EP 19810105694 EP19810105694 EP 19810105694 EP 81105694 A EP81105694 A EP 81105694A EP 0044549 A1 EP0044549 A1 EP 0044549A1
Authority
EP
European Patent Office
Prior art keywords
sole
insert
molded
elastic
area
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.)
Withdrawn
Application number
EP19810105694
Other languages
German (de)
English (en)
Inventor
Herbert Dr.-Ing. Funck
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0044549A1 publication Critical patent/EP0044549A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • A43B13/10—Metal
    • 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
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/32—Footwear with health or hygienic arrangements with shock-absorbing means

Definitions

  • the invention relates to a molded sole made of flexible plastic or rubber materials with a penetration-proof, hard-elastic insert.
  • Molded soles of this type are used in particular in so-called construction safety shoes, the insert for protecting the support foot against penetration generally consisting of a thin stainless steel sheet which is either inserted into a corresponding recess in a prefabricated molded sole by a press fit or is already cast in during the manufacture of the sole body , injected, in. is foamed or vulcanized.
  • These molded soles have compared to conventional designs, in which the Insert in or attached to the upper shoe has considerable advantages, particularly with regard to their service life, while at the same time simplifying the production of safety shoes. This is all the more so since foamed plastic and rubber materials are particularly well suited for such molded soles, as a result of which the overall weight of the finished safety shoe can be considerably reduced.
  • the puncture-proof insert lies in the uppermost layer of the sole and is flat or slightly curved from the sole joint to the tip of the sole according to the shape of the shoe.
  • the insert is completely or at least visible in the joint and front area from the top of the sole and is only surrounded by the sole material in a relatively narrow edge zone.
  • the flat front part of the insert is sometimes completely covered with a thin layer of the compact sole material during vulcanization.
  • Molded soles with the consistently high-lying insoles have the disadvantage for the wearer, above all in the ball area, that the relatively hard, flexible - but otherwise non-deformable - insert made of stainless steel sheet lies directly under the insole and thus directly under the ball of the foot .
  • An adaptation of the insoles to the respective support foot and their gradual deformation into the soft, elastic sole material are thus ruled out.
  • Such an adaptation of the insole to the support foot due to its deformation into the more or less soft elastic sole material makes normal footwear much more comfortable and also healthier in the foot without puncture-resistant insoles.
  • the object of the invention is a molded sole with a through to create a slip-proof thin insert that is more comfortable to wear, especially in the ball area and has a longer lifespan.
  • this object is achieved in that the insert in the ball area has a depression which is covered continuously with a layer of the soft, elastic sole material, and in that in the joint and tip area of the molded sole the insert lies in the uppermost layer of the sole and only covers the edge of the sole material is.
  • Such a design of the insert eliminates the disadvantages of the known soles made of soft-elastic materials with hard-elastic inserts without negating their advantages.
  • the lifespan of such a molded sole is extended compared to known ones by two complementary measures.
  • the lowering of the insert in the ball area acts as an additional fixation of the insert in the sole material, since the shear or tensile stresses occurring when walking due to the bending of the shoe are absorbed by the front and rear parts of the depression and therefore not or only to a significantly reduced extent sharp front insert edges.
  • the insert runs in the countersunk bale area in the "neutral fiber" that is always present when the sole is subjected to bending stresses, so that this arrangement alone increases the shear or tensile forces which occur when the sole is bent and which affect the insert and the zones of the area immediately surrounding it act soft elastic sole material, at least be significantly reduced.
  • the covering of the hard elastic thin insert in the ball area with a layer of the soft elastic sole materials, which is preferably between 3 and 6 mm thick allows the shape of the insole to be adapted to the support foot and to the person-specific walking behavior by means of plastic-elastic pressing into the covering layer of soft, elastic sole material. This significantly improves the comfort and convenience of a construction safety shoe.
  • An expedient development of the invention is characterized in that the insert in the longitudinal direction of the sole is bent transversely in front of and behind the ball area to form a depression forming the depression, wherein it is at least three for blown molded soles and at least four for flat molded soles at least four locations has running bending line.
  • a particularly suitable embodiment of the invention is characterized in that it is particularly suitable for blasted molded soles, which are becoming more and more popular due to the fact that they can be attached to the upper shoe without tension Inlay in addition to the ball area is also completely covered in the heel part by the sole material.
  • the insert behind the joint area has an additional single or double bend, so that when the mold is filled, a layer of the sole material of at least 5 mm thickness enclosing this rear insert part can form. In the case of flat molded soles, the insert is bent twice directly behind the joint area for this purpose.
  • a further improvement, particularly in terms of wearing comfort, can be achieved in particular in the case of blasted soles in that the insert in the joint area is deformed into a supporting arch.
  • Such a sole design is so stiff against the forces acting from above in spite of the existing shoulder recess in the joint area that passage of the foot is prevented and even the installation of an otherwise necessary joint stiffening in the upper shoe is unnecessary. Because of this sole design, the shoe can be produced on an orthopedically preformed last on its underside and the surface of the molded sole can be adapted to this last by molding an appropriate footbed.
  • the invention can also be applied analogously to all shoes whose soles are molded, injection molded, foamed or vulcanized directly onto the shoe.
  • the step-less detonated molded sole shown in FIG. 1 is also referred to as a so-called long wedge sole.
  • This sole is preformed to match the heel drop of the upper shoe last. It has a hard elastic insert made of z. B. a 0.5 mm thick stainless steel sheet, which in the foamed sole material 3 in the sole production was bedded.
  • the edge 4 of the insert 2 is covered in a relatively short zone by the soft, elastic sole material 3, this edge covering - except for the ball area - continuing all around the entire shoe.
  • the part 5 of the attachment 2 adjoining the edge 4 lies at the level of the sole surface.
  • the insert 2 In front of the ball area 6 of the shoe sole, the insert 2 is bent at two points 7, 8 into a depression which is completely covered by a layer 9 of the soft elastic sole material in a layer thickness between 3 and 6 mm. The surface of this layer 9 is flush with the surface of the front insert part 5.
  • the insert is bent obliquely upwards at 10 in such a way that it again runs in the adjoining joint area 11 and in the heel area 12 in the uppermost sole layer.
  • Figure 1 a further sole design is shown, in which the insert 2 at the end of the articulated area is again bent at 13 in such a way that the heel part shown in dashed lines runs in the sole material of the heel and is covered by a soft elastic layer 14 of the sole material.
  • the embodiment according to FIG. 2 differs essentially only in the other type of sole, which has a further bending point 15 directly in front of the joint area 11 and two further bends 16, 17 behind the joint area 11, as a result of which the heel part 12 of the insert 2 - similar to that in FIG 1 - embedded in the soft, elastic sole material and covered by a soft material layer 14.
  • the safety shoe shown in Fig. 3 consists of the upper shoe 18 with upper leather. 19, lining leather 20, an insole 21 and with a steel cap 22 between the upper leather 19 and the lining leather 20 and from the molded sole 1 according to the invention.
  • the front bend 7, 8 of the insert 2 begins to form the depression covered with the soft elastic layer 9 of the sole material.
  • the insole and thus also the most stressed bale parts of a forefoot are supported directly on this soft, elastic layer 5 above the insert, which allows the insole shape to be individually adapted to the support foot by yielding.
  • the insert in the joint area is shaped into a pronounced supporting arch 24, with a certain spring effect of the supporting arch being achieved in the longitudinal direction by at least one round bend 25.
  • the direct contact of the insole 21 on the arched insert part 24 provides the foot of the wearer with effective, orthopedically correct support in the joint area, which means that in addition to the improved wearing properties, a shoe equipped with this sole design does not require any additional joint reinforcement.
  • the front and rear extensions of the insert in front of and behind the joint part 11 are shortened and converted into hook-shaped supports 29, 30.
  • the formed as a supporting vaulted in the arch area 11 insert 2 is satisfied orthopedic tasks in this form sole primarily by imparting f ow a stable hold in the joint area without additional joint stiffness of the shoe upper to the carrier.
  • the invention is not limited to the embodiments shown.
  • combinations of individual shape features, preferably of the insert are possible, as shown in the different figures.
  • the rear edge 4 of the insert which is completely embedded in the sole material, can be bent over to form a holding member, as shown in FIG. 4.
EP19810105694 1980-07-21 1981-07-20 Semelle à garniture incorporée résistant au percement Withdrawn EP0044549A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803027601 DE3027601C2 (de) 1980-07-21 1980-07-21 Formsohle mit durchtrittssicherer Einlage
DE3027601 1980-07-21

Publications (1)

Publication Number Publication Date
EP0044549A1 true EP0044549A1 (fr) 1982-01-27

Family

ID=6107729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810105694 Withdrawn EP0044549A1 (fr) 1980-07-21 1981-07-20 Semelle à garniture incorporée résistant au percement

Country Status (2)

Country Link
EP (1) EP0044549A1 (fr)
DE (1) DE3027601C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8700940A (nl) * 1986-04-22 1987-11-16 Stiefel & Schuhvertrieb Gmbh Werkwijze voor het vervaardigen van een schoen.
EP0701783A1 (fr) * 1995-06-01 1996-03-20 Otter Schutz Gesellschaft für Entwicklung und Vertrieb und persönlicher Schutzausrüstungen mbH Semelle pour chaussure de sécurité et chaussure de sécurité munie d'une telle semelle
US5720118A (en) * 1988-12-13 1998-02-24 Helmut Mayer Inlay for a shoe
WO2000070980A1 (fr) * 1999-05-19 2000-11-30 Blundstone Pty Ltd Article chaussant

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506460A (en) * 1982-06-18 1985-03-26 Rudy Marion F Spring moderator for articles of footwear
DE3721885A1 (de) * 1987-07-02 1987-11-26 Theresia Muck Gmbh Damenschuhf Brandsohle fuer schuhe mit absatz
SG34208A1 (en) * 1995-03-01 1996-12-06 Guy Andrew Vaz Blast and fragment resistant polyurethane boot sole for safety footwear
SG126668A1 (en) 1998-12-29 2006-11-29 Bfr Holding Ltd Protective boot and sole structure
WO2005037002A1 (fr) * 2003-10-17 2005-04-28 Asics Corporation Semelle comportant une structure de renfort
DE112006002821B4 (de) * 2005-10-20 2012-11-08 Asics Corp. Schuhsohle mit Verstärkungsstruktur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1436501A (en) * 1973-10-11 1976-05-19 Freudenberg Carl Safety boots and shoes
DE2610076A1 (de) * 1976-03-11 1977-09-15 Continental Gummi Werke Ag Laufsohle fuer schuhwerk
FR2397800A1 (fr) * 1977-07-22 1979-02-16 Jallatte Sa Semelle anti-copeaux pour chaussures de securite
DE2838522A1 (de) * 1978-09-04 1980-03-13 Funck Herbert Schuhsohle fuer sicherheitsschuhe

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7607398U1 (de) * 1976-03-11 1977-02-03 Continental Gummi-Werke Ag, 3000 Hannover Laufsohle für Schuhwerk

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1436501A (en) * 1973-10-11 1976-05-19 Freudenberg Carl Safety boots and shoes
DE2610076A1 (de) * 1976-03-11 1977-09-15 Continental Gummi Werke Ag Laufsohle fuer schuhwerk
FR2397800A1 (fr) * 1977-07-22 1979-02-16 Jallatte Sa Semelle anti-copeaux pour chaussures de securite
DE2838522A1 (de) * 1978-09-04 1980-03-13 Funck Herbert Schuhsohle fuer sicherheitsschuhe
FR2434588A1 (fr) * 1978-09-04 1980-03-28 Funck Herbert Semelle pour chaussures de securite

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8700940A (nl) * 1986-04-22 1987-11-16 Stiefel & Schuhvertrieb Gmbh Werkwijze voor het vervaardigen van een schoen.
US5720118A (en) * 1988-12-13 1998-02-24 Helmut Mayer Inlay for a shoe
EP0701783A1 (fr) * 1995-06-01 1996-03-20 Otter Schutz Gesellschaft für Entwicklung und Vertrieb und persönlicher Schutzausrüstungen mbH Semelle pour chaussure de sécurité et chaussure de sécurité munie d'une telle semelle
WO2000070980A1 (fr) * 1999-05-19 2000-11-30 Blundstone Pty Ltd Article chaussant

Also Published As

Publication number Publication date
DE3027601A1 (de) 1982-02-11
DE3027601C2 (de) 1982-06-24

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19820604

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Withdrawal date: 19840613