DE102018116882A1 - Shoe lasts for use in the manufacture of shoes and methods for the manufacture of shoes taking into account individual shapes of the feet of the buyer of the shoes - Google Patents

Abstract

In the case of a shoe last for use in the manufacture of shoes, in particular shoes with a molded-on sole, preferably made of plastic, with a shaft section receiving the upper part of a shoe to be manufactured and with at least one sole section to be assigned to the outsole of the shoe to be manufactured, it is provided that the sole section is a from Shaft section is a separate component and that connecting means are provided for securely connecting the sole section and the shaft section. A method for producing shoes, taking into account individual shapes of the feet of the buyer of the shoes, is characterized by the following steps: Measurement results in at least one data record - transmission of the data record to a manufacturer of shoes - production of a separate sole section of the shoe last by converting the data record for a aforementioned shoe last connection of the sole section ittes with the upper section - using the shoe last with an individual sole section to manufacture the shoes.

Description

The invention relates to a shoe last for use in the manufacture of shoes, in particular shoes with a molded-on sole, preferably made of plastic, with a shaft section receiving the upper part of a shoe to be manufactured and with at least one sole section to be assigned to the outsole of the shoe to be manufactured. The invention further relates to a method for manufacturing shoes, taking into account individual shapes of the feet of the buyer of the shoes.

Shoe lasts have been used for the manufacture of shoes for decades. Shoe lasts are made of wood, metal or plastic. The state of the art is that a finished shoe last is used for the production of many shoes, for example in one or more series.

An adaptation or individualization of shoe lasts to be produced only takes place with regard to a series of a shoe model, but not in any case in the series production of shoes with an adaptation to individual ideas of the shoe buyers.

In order to meet the individual needs of shoe buyers, shoe lasts with the lot size would be required 1 are produced, but this is technically not feasible due to the amount of shoes to be manufactured and the high demand for appropriate shoe lasts and also for cost reasons.

The invention is therefore based on the object of demonstrating a shoe last of the type mentioned, with which an adaptation to individual customer requirements is nevertheless possible. Furthermore, a method for manufacturing shoes using this shoe last is to be demonstrated.

With regard to the shoe last, this object is achieved according to the invention in that the sole section of the shoe last is a separate component from the shaft section of the shoe last and in that connecting means are provided for the positionally fixed connection of the sole section and the shaft section.

The shoe last according to the invention has an at least two-part division. The shoe last has a shaft section and a sole section separate from this shaft section. Both sections can be securely connected to one another in order to form the shoe last and to make it available for the production of shoes. The shoe last according to the invention can be designed as a folding last.

The sole section is usually a smaller component than the shoe last as a whole. Changes can be made to the sole section that do not affect the upper section. In the sole section, it is therefore possible to adapt to the needs of those using the shoes to be manufactured. People have different soles of the feet, the sole of a shoe can adapt to the individual shape of the sole of a person. In particular, the shape and position of the heel arch are different in different people. In this respect, sole sections of different design can be provided, each of which can be connected to one and the same shaft section.

To connect the sole section and the shaft section, it can be provided according to a further development of the invention that sliding guides are provided for pushing the sole section onto the shaft section. Sole sections that differ from one another can easily be alternately pushed onto one and the same shaft section of the last. Alternatively, guide pins can also be provided for plugging the sole section onto the shaft section.

The applied sole section is fixedly connected to the upper section; according to a further development, screws serve as fixing means. Other fixing agents can of course also be used.

• - Vermessen der Füße des Käufers
• - Umsetzen der Messergebnisse in zumindest einen Datensatz
• - Übermitteln des Datensatzes zu einem Hersteller von Schuhen
• - Anfertigung eines separaten Sohlenabschnittes des Schuhleistens unter Umsetzen des Datensatzes für einen Schuhleisten der oben beschriebenen erfindungsgemäßen Ausbildung
• - Verbinden des individuell gefertigten Sohlenabschnittes mit dem Schaftabschnitt
• - Verwenden des Schuhleistens mit individuellem Sohlenabschnitt zum Fertigen der Schuhe.

The procedural solution to the task for which independent protection is claimed is characterized by the following steps:

• - measuring the feet of the buyer
• - Converting the measurement results into at least one data record
• - Submit the record to a shoe manufacturer
• - Creation of a separate sole section of the shoe last with implementation of the data set for a shoe last of the inventive design described above
• - Connecting the individually manufactured sole section with the upper section
• - Use the shoe last with an individual sole section to manufacture the shoes.

The manufacturing method of shoes according to the invention takes place in these several steps at several different locations. An individualization of the shoes to be manufactured first requires measuring the feet. This is done according to the method according to the invention three-dimensional, so that in particular the formation of the sole of the foot is taken up with the heel arch. The measurement results result in a data record that is transmitted to the manufacturer of the shoes. This manufacturer then uses the last according to the invention and takes a suitable sole section or produces a sole section that matches the data record. To this extent, a sole section is provided which is adapted to the individual design of the sole of the foot of the buyer of the shoes. This is connected to the shaft section of the shoe last according to the invention in a fixed position and is finally used in the method for producing the shoes.

The process produces a pair of shoes that are initially adapted to the individual design of the sole of the buyer's foot. In addition to the sole of the manufactured shoes with a shaping of the footbed according to the measured data set, it is also possible to adapt the outer material of the shoes, different colors and possibly different closing means of the shoes.

According to a first development of the invention, it is provided that the feet are measured with a three-dimensional scanning device. In this way, a three-dimensional data set is produced in a short time, the transmission of which can then preferably take place electronically. In this respect, the recorded measurement results are processed quickly.

In the method according to the invention it can also be provided that one and the same manufacturing form is used for the production of the shoes even when using different sole sections. For the production of the shoes in the direct injection molding process, a mold is often used, into which a liquid plastic is introduced, which forms after certain sections of the shoe have hardened. This is possible, for example, for the outsoles of shoes, especially for gymnastics, leisure and functional shoes. Such a shape can also be used when different sole sections are used, since the same upper section can always be used for different sole sections of a shoe size, so that overall a shoe last is formed which can be used with one and the same manufacturing form.

• 1: eine perspektivische Ansicht eines Schuhleistens mit zwei voneinander verschiedenen Sohlenabschnitten und
• 2: eine schematische Seitenansicht während des Herstellprozesses einer Laufsohle für einen Schuh.

An embodiment of the invention, from which further inventive features result, is shown in the drawing. Show it:

• 1 : a perspective view of a shoe last with two different sole sections and
• 2 : A schematic side view during the manufacturing process of an outsole for a shoe.

The shoe last in 1 has a shaft portion 1 on. The shaft section 1 reproduces a human foot in combination with the design of the shoe to be manufactured. The sole area 2 of the shaft section 1 is only formed in a front "toe" area, in the remaining area there is a connection point 3 given. Between the sole area 2 and attachment point 3 is a paragraph 4 educated.

At the shaft section 1 is a selectable sole section 5 . 5 ' attachable. The respective section of the sole 5 . 5 ' is going to paragraph 4 of the sole section 2 laid out so that a complete, with the line 6 schematically shown sole forms. The sole sections 5 . 5 ' differ from each other. The arch of the foot 7 sets at the sole section 5 starting from the edge 4 earlier than the sole section 5 ' ,

shank portion 1 and sole section 5 . 5 ' are connected to each other so that they are secure when making a shoe 8th in 2 can be used. The upper 9 of the shoe 8th is on a shoe last according to the invention with a shaft section 1 been raised. The sole of the shoe 10 of the shoe 8th is now done by adding plastic within a manufacturing mold 11 performed. By using the individual sole sections 5 . 5 ' becomes a shoe 8th with an individual training of the shoe sole 10 manufactured. For different shoes 8th using different sole sections 5 . 5 ' can one and the same manufacturing form 11 be used.

LIST OF REFERENCE NUMBERS

1

shank portion

2

sole area

3

piecing

4

paragraph

5, 5 '

sole portion

6

line

7

footrest

8th

shoe

9

uppers

10

sole

11

manufacturing mold

Claims (9)

Shoe lasts for use in the manufacture of shoes, in particular shoes with a molded-on sole, preferably made of plastic, with a shaft section receiving the upper part of a shoe to be manufactured and with at least one sole section to be assigned to the outsole of the shoe to be manufactured, characterized in that the sole section (5, 5 ') is a separate component from the shaft section (1) and that connecting means are provided for the positionally fixed connection of the sole section (5, 5') and the shaft section (1). Shoe lasts after Claim 1 , characterized in that differently designed sole sections (5, 5 ') can each be connected to the shaft section (1). Shoe lasts after Claim 1 or 2 , characterized in that the connecting means comprise sliding guides for pushing the sole section (5, 5 ') onto the shaft section (1). Shoe lasts after Claim 1 or 2 , characterized in that the connecting means comprise guide pins for plugging the sole section (5, 5 ') onto the shaft section (1). Shoe lasts after Claim 3 or 4 , characterized in that screws are provided for fixing the sole portion to the shaft portion. Method for the production of shoes taking into account individual shapes of the feet of the buyer of the shoes, with the following steps: - measuring the feet of the buyer - converting the measurement results into at least one data record - transmitting the data record to a manufacturer of shoes (8) - making a separate one Sole section (5, 5 ') of the shoe last while converting the data record for a shoe last according to one of the Claims 1 to 5 - Connecting the sole section (5, 5 ') with the shaft section (1) - Using the shoe last with an individual sole section to manufacture the shoes (8). Procedure according to Claim 6 , characterized in that the feet are measured with a three-dimensional scanning device. Procedure according to Claim 6 or 7 , characterized in that data records are transmitted electronically. Method according to one of the Claims 6 to 8th , characterized in that one and the same manufacturing mold (11) is used to manufacture the shoes (8) even when using different sole sections (5, 5 ').

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