EP0464801A2 - Chaussure stable cousue et son procédé de fabrication - Google Patents

Chaussure stable cousue et son procédé de fabrication Download PDF

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Publication number
EP0464801A2
EP0464801A2 EP91111049A EP91111049A EP0464801A2 EP 0464801 A2 EP0464801 A2 EP 0464801A2 EP 91111049 A EP91111049 A EP 91111049A EP 91111049 A EP91111049 A EP 91111049A EP 0464801 A2 EP0464801 A2 EP 0464801A2
Authority
EP
European Patent Office
Prior art keywords
shaft
midsole
damping layer
stiffening plate
shoe
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Withdrawn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
EP91111049A
Other languages
German (de)
English (en)
Other versions
EP0464801A3 (en
Inventor
Stefan Lederer
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.)
Lowa-Schuhfabrik Lorenz Wagner & Co KG GmbH
Original Assignee
Lowa-Schuhfabrik Lorenz Wagner & Co KG 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 Lowa-Schuhfabrik Lorenz Wagner & Co KG GmbH filed Critical Lowa-Schuhfabrik Lorenz Wagner & Co KG GmbH
Publication of EP0464801A2 publication Critical patent/EP0464801A2/fr
Publication of EP0464801A3 publication Critical patent/EP0464801A3/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B9/00—Footwear characterised by the assembling of the individual parts
    • A43B9/02—Footwear stitched or nailed through

Definitions

  • the invention relates to a shoe with a shaft, one with the shaft by means of a stitching seam, in particular by means of a strobing seam, optionally together with a resilient midsole sewn onto the inside of the shaft and a sole construction supporting the sewn structure of the shaft and midsole, wherein the sole construction has at least one outsole, a damping layer and a shell edge, and wherein the sole construction, including its shell edge, is adhesively bonded, in particular glued, to the sewn structure of the shaft and midsole.
  • Shoes of this type known in practice are used where the torsional stability of the shoe is not critical, such as for sneakers that are used on a smooth surface. These well-known shoes are less suitable for hiking and trekking shoes. For the last-mentioned purposes, only shoes have been used so far in which a stiff midsole has been connected to the upper in a relatively complex and therefore expensive lasting process.
  • the invention has for its object to provide a shoe that enables the use of stitching, in particular with a strobe seam, between the shaft material and a correspondingly soft midsole, but nevertheless has a stability that is similar to the stability of shoes made in the lasting process.
  • the sole construction has at least one stiffening plate which is adhesively connected, in particular glued, to the midsole, which at least in The ball and / or heel area has a thickness reduction that may degenerate into an opening.
  • the proposed solution creates a shoe that combines the advantage of a simple and inexpensive manufacture, because of the possibility of using a stitching that is easy to produce for connecting the midsole to the upper material, with the advantage of a stability comparable to that of a lasting shoe. If there is a lining on the inside of the shoe, the simple manufacture of the shoe using the stitching becomes particularly clear, since only a single seam is required to connect three parts of the shoe - shaft material, midsole and lining.
  • the reduction in thickness ensures that, despite the good stability due to the stiffening plate, the shoe has pleasant running and damping properties. There is a possibility that the reduction in thickness is formed by reducing the material thickness to a thin skin that does not impede the damping. However, it can also degenerate into an opening. There is also the possibility that a single reduction in thickness or opening from the ball area to the heel area is provided. Instead of only one stiffening plate, it is also possible to provide several plates arranged one behind the other in the running direction.
  • the stiffening plate be adhesively bonded to the damping layer, in particular by adhesive.
  • a hot melt or hot melt adhesive that is particularly favorable for a mechanical manufacturing process can be used for the adhesive.
  • the shell edge of the sole construction is intended to prevent moisture from penetrating into the area between the sewn structure of the upper and midsole on the one hand and the sole construction on the other.
  • the edge of the shell can be formed by a separate part, which is assembled into the shoe with the other components in the manufacturing process.
  • the manufacturing process for the shoe can be simplified in that the shell edge is formed integrally and coherently from the material of the damping layer. In this way, the edge of the shell can be produced in a simple manner in the manufacturing process of the damping layer.
  • the shell edge is formed integrally integrally with the reinforcing plate material, which also simplifies the manufacturing process.
  • the shell edge gives the shoe additional stability.
  • the stability of the stiffening plate can be achieved on the one hand by a constructive-geometric design of the plate.
  • the stability property can also be achieved particularly simply and inexpensively in that the stiffening plate is made of a material which is harder than the material for the midsole and for the sole construction.
  • stiffening plate A wide variety of materials can be provided for the stiffening plate. It is particularly advantageous if the stiffening plate is made of polyurethane, preferably with a Shore hardness of approx. 98 - approx. 110.
  • the shoe itself can be designed as a heavy-duty shoe, in particular sports or hiking boots, but also as a low shoe.
  • the invention further relates to a method for producing a shoe with a shaft, one with the shaft by means of a stitching seam, in particular by means of a strobing seam, optionally together with a resilient midsole sewn onto the inside of the shaft and a sewn structure made of shaft and midsole-bearing sole construction, the sole construction having at least one outsole, a cushioning layer and a shell edge, and wherein the sole construction including its shell edge is adhesively bonded, in particular glued, to the sewn structure of the shaft and midsole.
  • At least one stiffening plate be introduced between the midsole and the damping layer, which has a thickness reduction, at least in the ball and / or heel area, which may degenerate into an opening.
  • a shoe can be manufactured in a simple manner, which has a stability comparable to that of a shoe produced in a lasting process.
  • the manufacturing process can be further simplified in that the sole construction is injected in one injection process within a mold by injecting the material of the at least one damping layer into the shape designed with the outsole on the one hand and the stiffening plate on the other hand, the shell edge also being formed from the material of the damping layer and that the sole construction thus obtained is then glued to the structure prefabricated from the upper and midsole in an adhesive press.
  • the stiffening plate on its side facing the damping layer and / or the outsole on its side facing the damping layer be pre-coated with an adhesive, preferably hot glue, before injecting the damping layer. It is hereby achieved that the firm connection between the damping layer on the one hand and the stiffening plate and / or the outsole on the other hand already takes place during the injection of the damping layer, so that a further operation which is otherwise necessary for this can be omitted.
  • the injection of the damping layer and the connection that takes place at the same time between the outsole and the damping layer and between the damping layer and the stiffening plate can be achieved particularly simply by using an injection mold which consists of a lower mold receiving the outsole and a last carrying the stiffening plate is formed, the last being approximated to the lower mold in the closed position before the injection of the damping layer.
  • a shoe 10 has a shaft 12 which is preferably made of leather or a textile material and which is connected to a flexible midsole 16 via a stitching 14. With the midsole 16, an essentially waterproof lining 18 is also sewn over the stitching 14 against the inside of the shaft 12.
  • the sewn structure of the shaft 12 and midsole 16 is carried by a sole construction 20.
  • the sole construction 20 is formed by an outsole 20a and a damping layer 20b arranged between the sewn structure of the shaft 12 and the midsole 16 on the one hand and the outsole 20a on the other.
  • a shell rim 21 is integrally formed on the damping layer 20b, which is intended to prevent moisture from penetrating into the space between the sewn structure of the shaft 12 and the midsole 16 on one side and the damping layer 20b on the other side.
  • a stiffening plate 22 which provides the shoe with good stability and is adapted to the shape of the sole and is arranged in a recess in the cushioning layer 20b.
  • the stiffening plate 22 has two thickness reductions 22a, 22b both in the heel area and in the ball area, which are degenerate into perforations in the present exemplary embodiment. 2 also shows that the shell edge 21 of the damping layer 20b completely runs around, as a result of which an optimal seal is achieved.
  • Polyurethane with a Shore hardness of approximately 98-110 is used as the material for the stiffening plate 22.
  • any other material with sufficient hardness can also be used to produce the stiffening plate 22. If this material is not water-conducting, this prevents moisture from penetrating into the interior of the shoe 10 via the midsole 16 made, for example, of a water-conducting textile material. However, there is also or in addition the possibility that the sole structure 20 has a non-water-conducting layer, in particular the damping layer not being able to be water-conducting.
  • the substantially waterproof lining 18 is constructed in layers, whereby it consists of an outer textile-like protective coating 18a facing the shaft 12 made of a fabric, preferably a polyamide thread fabric or a polyester thread fabric, furthermore of a vapor-permeable film 18b, such as it is offered under the trademark Gore-Tex, and is formed from an inner textile-like protective coating 18c.
  • the lining 18 is sewn together with the shaft 12 to the midsole 16 via the stitching 14.
  • the lining 18 can extend to the upper entry edge of the shoe 10 and can be designed up to this edge as a dense sack (not shown).
  • the stitching seam 14 for sewing the shaft 12 or the lining 18 to the midsole 16 is a strobing seam which is produced on a so-called stubble machine (cf. FIG. 3).
  • This strobing seam can be produced in such a way that the upper of the upper 12 of the upper 12 lies flush with the lining 18 lying against it on the edge of the midsole 16 and is then sewn to it.
  • the manufacture of the shoe 10 of the exemplary embodiment shown in FIGS. 1 and 2 takes place in that the sole construction 20 is first produced in an injection mold 24.
  • the injection mold 24 consists of a lower mold 24a and a vertically movable bar 24b (cf. FIG. 4).
  • the outsole 20a is inserted into the lower mold 24a.
  • the outsole 20a can then be coated with an adhesive layer 26a, in particular a hot adhesive layer.
  • the stiffening plate 22 is attached to the last 24b in such a way that it sticks to the last when the last 24b is lowered, but can easily be detached from the last 24b after the sole structure 20 has been produced in order to be able to further process the sole structure 20.
  • the side of the stiffening plate 22 facing the outsole 20a can be coated with an adhesive layer 26b, in particular a hot-melt adhesive layer, before the last 24b is lowered.
  • the injection mold 24 is closed by the strip 24b moving vertically downward in FIG. 4. As soon as the mold 24 is closed, the material for the damping layer 20b is injected, the shell edge 21 being formed at the same time. To When the damping layer 20b has hardened, the injection mold 24 can be opened and the sole construction 20 can be removed.
  • connection between the sole construction 20 and the prefabricated, sewn structure made of the shaft 12 and the midsole 16 can then be glued in an adhesive press with the interposition of an adhesive layer 26c, in particular a hot-melt adhesive layer (cf. FIG. 1).
  • the shell rim 121 which is also completely circumferential, is connected in one piece to the stiffening plate 122, as a result of which the stiffening plate 122 forms a stiffening shell.
  • This stiffening shell is in turn arranged between the sewn structure of shaft 112, lining 118 and midsole 116 on the one hand and the sole construction 120 on the other.
  • the damping layer 120b only forms a slightly rising edge, which, among other things, serves for easier alignment of the stiffening shell with respect to the sole construction 120 when the shoe parts are joined together.
  • the stiffening plate 122 integrally connected to the shell edge 121 likewise has two thickness reductions 122a, 122b that degenerate into openings.
  • the manufacture of the shoe 110 takes place in that the stiffening shell is made in advance in a mold, for example by injection molding. This can be followed by the same manufacturing steps as in the first described embodiment, with the difference that when the material is injected, the Damping layer 120b does not form a shell edge 121 but only a slightly raised edge (see FIG. 5).

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP19910111049 1990-07-06 1991-07-03 Stabilized sewn shoe and method of manufacture Withdrawn EP0464801A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904021537 DE4021537A1 (de) 1990-07-06 1990-07-06 Gestrobelter schuh mit stabilitaet
DE4021537 1990-07-06

Publications (2)

Publication Number Publication Date
EP0464801A2 true EP0464801A2 (fr) 1992-01-08
EP0464801A3 EP0464801A3 (en) 1992-05-20

Family

ID=6409772

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910111049 Withdrawn EP0464801A3 (en) 1990-07-06 1991-07-03 Stabilized sewn shoe and method of manufacture

Country Status (2)

Country Link
EP (1) EP0464801A3 (fr)
DE (1) DE4021537A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1943914B1 (fr) * 2000-04-13 2016-03-16 Geox S.P.A. Procede de fabrication d'une chaussure respirante
US10265159B2 (en) 2011-11-03 2019-04-23 Biomet Sports Medicine, Llc Method and apparatus for stitching tendons

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2101894A5 (fr) * 1970-07-24 1972-03-31 Dynafit Gmbh
WO1990006067A1 (fr) * 1988-11-28 1990-06-14 Lowa-Schuhfabrik Lorenz Wagner Gmbh & Co. Kg Chaussure caracterisee par une trepointe en plastique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE471365C (de) * 1929-02-12 Adam Griesfeller Wasserdichtes Schuhwerk
DE3716424A1 (de) * 1987-05-15 1988-12-01 Adidas Sportschuhe Laufsohle fuer sportschuhe
DE8814974U1 (de) * 1988-10-28 1989-02-16 Völkl & Co KG Sportschuhfabrik, 8051 Allershausen Wasserundurchlässiger Schuh

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2101894A5 (fr) * 1970-07-24 1972-03-31 Dynafit Gmbh
WO1990006067A1 (fr) * 1988-11-28 1990-06-14 Lowa-Schuhfabrik Lorenz Wagner Gmbh & Co. Kg Chaussure caracterisee par une trepointe en plastique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1943914B1 (fr) * 2000-04-13 2016-03-16 Geox S.P.A. Procede de fabrication d'une chaussure respirante
US10265159B2 (en) 2011-11-03 2019-04-23 Biomet Sports Medicine, Llc Method and apparatus for stitching tendons

Also Published As

Publication number Publication date
EP0464801A3 (en) 1992-05-20
DE4021537A1 (de) 1992-01-09

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