FR2550065A1 - Method for manufacturing footwear with thin plastic soles directly injected onto the upper - Google Patents

Method for manufacturing footwear with thin plastic soles directly injected onto the upper Download PDF

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Publication number
FR2550065A1
FR2550065A1 FR8312755A FR8312755A FR2550065A1 FR 2550065 A1 FR2550065 A1 FR 2550065A1 FR 8312755 A FR8312755 A FR 8312755A FR 8312755 A FR8312755 A FR 8312755A FR 2550065 A1 FR2550065 A1 FR 2550065A1
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FR
France
Prior art keywords
groove
directly injected
sole
thin plastic
manufacturing footwear
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
FR8312755A
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French (fr)
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FR2550065B1 (en
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.)
EYMERY JEAN PIERRE
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EYMERY JEAN PIERRE
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 EYMERY JEAN PIERRE filed Critical EYMERY JEAN PIERRE
Priority to FR8312755A priority Critical patent/FR2550065B1/en
Publication of FR2550065A1 publication Critical patent/FR2550065A1/en
Application granted granted Critical
Publication of FR2550065B1 publication Critical patent/FR2550065B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/06—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising
    • B29D35/061—Producing footwear having soles or heels formed and joined on to preformed uppers using a moulding technique, e.g. by injection moulding, pressing and vulcanising by injection moulding

Abstract

The invention relates to a method making it possible to use forces transmitted by the pressure of injection or of transfer in order to push back the folds and seams of the assembly into a groove hollowed out for this purpose inside the perimeter of the underside of the last. The last 1 comprises a groove or recess 4. At the end of filling of the impression 3 of the mould 2, the bead 7 formed by the assembly of the vamp 5 and of the insole 6, is pushed back into the groove 4. The method according to the invention is intended particularly for the manufacture of footwear with thin soles.

Description

DESCRIPTION
La présente invention concerne un procédé pour obtenir des semelles à bords minces en matière plastique directement injectée sur tiges de chaussures,
Les articles chaussants à semelle mince, ne peuvent être fabriqués par les procédés traditionnels d'injection directe de matière plastique sur tige. Le "montage", c'est à dire l'assemblage de la première sur son empeigne présente des plis et un bourrelet qui conditionnent l'épaisseur minimale de l'empreinte du moule; et donc l'épaisseur minimale de la semelle.DESCRIPTION
The present invention relates to a method for obtaining soles with thin edges of plastic material directly injected on shoe uppers,
Thin-soled footwear cannot be produced by the traditional methods of direct plastic injection on the upper. The "assembly", that is to say the assembly of the first on its upper has folds and a bead which condition the minimum thickness of the mold footprint; and therefore the minimum thickness of the sole.

Le procédé selon l'invention permet de remédier à cet inconvenient. Il consiste en l'utilisation de Forces transmises par la pression de la matière plastique injectée, pour repousser et, écraser les plis et le bourrelet, dans une gorge creusée à cet effet, suivant le pourtour du dessous de la forme. Le défaut intérieur de la chaussure pourra entre compensé par un remplissage. The method according to the invention makes it possible to remedy this drawback. It consists of the use of Forces transmitted by the pressure of the injected plastic, to repel and crush the folds and the bead, in a groove dug for this purpose, along the circumference of the underside of the shape. The internal defect of the shoe can be compensated for by a filling.

La figure 9 représente un dispositif selon l'invention vu en coupe à la cambrure. C13 est la forme; (2) est le moule; t33 est l'empreinte de la semelle; t43 est la gorge; 53 est l'empeigne; (6) est une première de montage; (7) est un bourrelet de couture du "montage -
Lors de l'injection de la matière plastique, le bourrelet t73 est poussé et pressé dans le fond de la gorge e43 par les Forces qui s'exercent en fin de remplissage de l'empreinte (3). FIG. 9 represents a device according to the invention seen in cross section at the camber. C13 is the form; (2) is the mold; t33 is the footprint of the sole; t43 is the throat; 53 is the upper; (6) is a first assembly; (7) is a seam bead of the "mounting -
During the injection of the plastic material, the bead t73 is pushed and pressed into the bottom of the throat e43 by the forces which are exerted at the end of filling the imprint (3).

La figure 2 représente une variante de ce dispositif. Figure 2 shows a variant of this device.

La gorge C43 est prolongée en évidement (3) . L'empeigne C53 et la première(6) sont remplacées par une tige genre l'chaussetteç'
Le procédé selon l'invention et les dispositifs y relatiFs sont particulièrement destinés à la fabrication d'articles chaussants à semelles minces, tels que : chaussons de danse et de gymnastique,"ballerines","mules",chaussettes à semelles injectées. The groove C43 is extended in a recess (3). The upper C53 and the first (6) are replaced by a rod like the sock
The process according to the invention and the devices relating thereto are particularly intended for the manufacture of footwear with thin soles, such as: dance and gymnastic slippers, "ballerinas", "mules", socks with injected soles.

Claims (1)

R E V E N D I C A T I O N S I) Procédé pour fabriquer des articles chaussants à semelle directement injectée sur tige, caractérisé en ce qu'il permet d'obtenir un bord de semelle (3) plu mince que le bourrelet (7) formé par l'assemblage de l'empeigne t53 et de la première t63. 2) Procédé selon revendication 1 caractérisé en ce qu'il ee limite à une portion de semelle.CLAIMSSI) Method for manufacturing footwear with a sole directly injected on the upper, characterized in that it makes it possible to obtain a sole edge (3) thinner than the bead (7) formed by the assembly of the vamp t53 and the first t63. 2) Method according to claim 1 characterized in that it is limited to a sole portion. 33 Dispositif de mise en oeuvre selon revendications 1 et 2 caractérisé en ce que la gorge t43 creusée dans la forme (1) permet à le couture (7) d'être repoussée au Fond de cette gorge par la matière plastique injectée ou transFérée dans l'empreints (3) 33 Implementation device according to claims 1 and 2 characterized in that the groove t43 hollowed out in the shape (1) allows the seam (7) to be pushed back to the bottom of this groove by the plastic material injected or transferred into the '' imprints (3) 4) DispositiF de mise en oeuvre selon revendications 1,2, et 3, caractérisé en ce que la gorge t43 est remplacée par un évidement (fig.2).  4) DispositiF of implementation according to claims 1,2, and 3, characterized in that the groove t43 is replaced by a recess (fig.2). 5) Dispositif de mise en oeuvre-selon revendications 3 et 4 cerectérisé en ce que une tôle rapportee au pourtour de la forme (1) remplece le bord extérieur de la gorge ou de l'évidement. 5) Device for implementation-according to claims 3 and 4 cerectérisé in that a sheet attached to the periphery of the form (1) replece the outer edge of the groove or the recess. S) Produit selon l'une quelconque des revendications précédentes, caractérisé en ce que une augmentation-de l'épaisseur apparente de le semelle est obtenue par creusage de la forme à l'intérieur du pourtour de la planche de forme.  S) Product according to any one of the preceding claims, characterized in that an increase in the apparent thickness of the sole is obtained by digging the shape inside the periphery of the shape board.
FR8312755A 1983-08-01 1983-08-01 PROCESS FOR THE MANUFACTURE OF THIN SOLE SOLE ARTICLES IN PLASTIC MATERIAL DIRECTLY INJECTED ON ROD Expired FR2550065B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8312755A FR2550065B1 (en) 1983-08-01 1983-08-01 PROCESS FOR THE MANUFACTURE OF THIN SOLE SOLE ARTICLES IN PLASTIC MATERIAL DIRECTLY INJECTED ON ROD

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8312755A FR2550065B1 (en) 1983-08-01 1983-08-01 PROCESS FOR THE MANUFACTURE OF THIN SOLE SOLE ARTICLES IN PLASTIC MATERIAL DIRECTLY INJECTED ON ROD

Publications (2)

Publication Number Publication Date
FR2550065A1 true FR2550065A1 (en) 1985-02-08
FR2550065B1 FR2550065B1 (en) 1986-02-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR8312755A Expired FR2550065B1 (en) 1983-08-01 1983-08-01 PROCESS FOR THE MANUFACTURE OF THIN SOLE SOLE ARTICLES IN PLASTIC MATERIAL DIRECTLY INJECTED ON ROD

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FR (1) FR2550065B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609240A1 (en) * 1987-01-07 1988-07-08 Benard Sa Manufacture Chaussur Device for injecting articles of footwear, particularly mules, and articles thus obtained
EP0286853A3 (en) * 1987-04-15 1990-10-10 W.L. Gore & Co. Gmbh Method for sealing shoes in the sole region

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1318081A (en) * 1961-03-20 1963-02-15 Int Vulcanizing Corp Footwear manufacturing method and apparatus
FR2011576A1 (en) * 1968-06-24 1970-03-06 Peter Funk Schuhfabrik
FR2037514A5 (en) * 1949-10-19 1970-12-31 Hoffmann Gmbh Gustav

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2037514A5 (en) * 1949-10-19 1970-12-31 Hoffmann Gmbh Gustav
FR1318081A (en) * 1961-03-20 1963-02-15 Int Vulcanizing Corp Footwear manufacturing method and apparatus
FR2011576A1 (en) * 1968-06-24 1970-03-06 Peter Funk Schuhfabrik

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609240A1 (en) * 1987-01-07 1988-07-08 Benard Sa Manufacture Chaussur Device for injecting articles of footwear, particularly mules, and articles thus obtained
EP0286853A3 (en) * 1987-04-15 1990-10-10 W.L. Gore & Co. Gmbh Method for sealing shoes in the sole region

Also Published As

Publication number Publication date
FR2550065B1 (en) 1986-02-07

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