EP4620345A1 - Measuring tool for measuring the interior of an article of footwear - Google Patents

Abstract

The present disclosure generally relates to a measuring tool for measuring the interior of a footwear. Furthermore, the disclosure relates to a method for measuring the interior of a footwear using the measuring tool.

Description

The present disclosure generally relates to a measuring tool for measuring the interior of a footwear. Furthermore, the disclosure relates to a method for measuring the interior of a footwear using the measuring tool.

State of the art

One of the biggest challenges in the clothing trade concerns the issue of fit. The term "fit" is poorly defined and barely quantified. Generally, the fit of a garment (including footwear) refers to its adaptation to the human body. A good fit contributes to the comfort of any clothing. Since every person has different body dimensions and proportions, in the case of clothing, the clothing size alone does not provide a reliable statement about whether the clothing is optimally adapted to the body. The same applies to footwear: shoe size alone does not provide a reliable statement about the actual fit of the shoe with regard to the corresponding, individual foot. With shoes, the problem of fit arises with regard to non-standard foot shapes (e.g., wide feet, high insteps) or with pathologically altered feet (e.g., flat feet and splayed feet). Even with fashionable shoe shapes, for example, with a narrow toe, the actual adaptation to the wearer's foot morphology deviates from the optimal fit. An optimal fit is generally achieved through custom-made work by a tailor or shoemaker.

The fit of clothing is generally given a lot of attention, as both the physical comfort of the wearer and his social perception depends on it: the question of how the clothed body of the wearer is perceived by their social environment influences the wearer's body awareness and self-esteem (Kim and Damhorst 2013). Despite general attention, problems with the fit and size of clothing items occur very frequently among consumers (women and men), which is mainly due to the fact that manufacturers use different, non-uniformly standardized sizing systems (Clifford, 2011). Especially when purchasing clothing online, the buyer's lack of access to fit and size information for the garments in question has led to an explosion in return rates.

In comparison, relatively little attention is paid to the fit of shoes, even though numerous studies demonstrate that poorly fitting shoes are the primary cause of the extremely common occurrence of foot problems (Marr and Quine 1993). The knowledge gained from numerous foot anthropometric studies on the diversity of national, gender-specific, and individual differences in foot shape ultimately confirms the individuality of each foot shape, but leaves untouched the problem of the inadequate fit of industrially manufactured shoes (ready-made shoes). The fit of footwear encompasses not only the actual "best fit" but also the respective comfort, which the wearer describes subjectively and which also depends significantly on the materials used. Furthermore, the fit depends crucially on the wearer's state of movement: the so-called "static" fit (rest) often differs considerably from the "functional" fit (running, jumping, hopping).

When manufacturing ready-to-wear shoes, manufacturers use standardized, three-dimensional shoe molds. This mold, the so-called last, determines the size, shape, and heel height of the shoe built upon it and corresponds to a replica of the foot in a normal posture under moderate load. The quality of the shoe's fit is largely determined by the quality of the lasts used (Clarks 1989). These are produced using Databases of human foot measurements (Chen and Perng 1999) are created using empirical data (Reinschmidt and Nigg 2000). In contrast, bespoke shoemakers create what are known as custom wooden lasts based on the measurements of the customer's foot and the desired shoe model. While custom-made shoes can largely address the problem of individual fit for the customer, the fit problem of industrially manufactured shoes remains largely unsolved.

It is therefore often difficult for customers to find clothing, especially shoes, with an optimal fit. This problem is exacerbated in online retail, as customers cannot determine the fit of the products they are interested in by trying them on. In this context, it is often impossible for customers to assess the quality of the fit based on the information provided by the manufacturer/distributor.

Various approaches to determining the fit of footwear are known from the state of the art, based either on measuring the specific footwear or on measuring the wearer, or a combination of both. With particular regard to shoes, various options for measuring the shoe interior have been developed.

The EP 2 164 355 A1 discloses a scanning device and a method for detecting the 3D spatial shape of a body, wherein a surface of the body is scanned using a scanning end. The scanning end is rigidly connected to a camera via a connecting device, so that when the scanning end moves, the camera always moves with it. The camera is arranged such that it can detect a surface provided with photogrammetrically analyzable markers on which the body to be scanned stands, while the scanning end scans various points on the surface of the body to be scanned.

The WO 2005/111539 A1 Describes a method for the non-destructive determination of the interior and/or dimensions of a shoe or boot. This involves a measuring system that covers the inner surface of the shoe in three dimensions. This system uses a radiological, computed tomography, magnetic resonance imaging, or other imaging measurement method to acquire and store layer-by-layer cross-sectional images. After data acquisition, fixed points or virtual points related to the shape of the foot and connecting lines extending between them are determined. Alternatively, an X-ray imaging method can be used, in which the points of interest are measured using an X-ray contrast-generating calibration element.

The DE 10 2005 039632 A1 discloses a method and a device for measuring shoes of all kinds. The measurement is carried out using laser beams. In DE 10 2012 004064 A9 refers to a computer tomography method and device for the non-destructive determination of the internal dimensions of shoes.

In the DE 10 2004 045858 A1 A device for measuring the interior of a shoe is described, which is designed with a shaft part and a foot part adjoining the shaft part, wherein the foot part can be adjusted via the shaft part in the sense of a gauge to the length of the interior of the shoe. The foot part is dimensioned and constructed in such a way that it can be adjusted from a short insertion position suitable for shoes of any size to a measuring position approximately adapted to the length of the interior. A method similar in principle includes the US 6.19 2.593 B1 This discloses a pneumatically activated sensor that can move axially within a shoe and non-destructively measure the shoe's internal dimensions. Starting at the heel of the shoe, a computer-controlled, linear pneumatic drive extends a sensor until it touches the toe section of the shoe. A potentiometer then measures the linear distance traveled by the sensor.

In the WO 2012/052044 A1 It is disclosed that the overall fit can be significantly improved by tailoring the footbed, as the footbed plays at least as important a role in the fit and functionality of a shoe as the fit of the upper shoe. A further improvement can be achieved by simultaneously and fully automatically digitizing the parts of the human foot visible from above and from the side using a 3D foot scanner, which can thus also be taken into account in the fit. A spatially resolving pressure sensor built into the foot scanner can also measure the pressure image of the sole of the foot ( US$7,489,813 The data obtained via scanners can now be used either in the production of customized lasts or to adapt lasts used in industrial shoe production. Furthermore, the data can be compared with datasets concerning digitized shoe interiors of ready-made shoes.

The printed matter DE 2007 032 609 A1 and US 7,446,884 A each disclose a method for creating a numerical 3D model of the interior of a manufactured shoe. This numerical 3D model of the interior is intended to enable improved adaptation of the wearer's digitized 3D foot shape to the last shapes from a last database that do not adequately represent the inner shoe, resulting in an improved fit.

In the US 6,975,232 B1 A device and method for visualizing a foot inside a shoe to determine the fit of the shoe are described. The device and method achieve this using infrared thermography. The device comprises one or more thermography instruments directed at a base surface, which serve to capture one or more thermal images of the shoe-foot combination standing on the base surface, or corresponding sections thereof. Based on the thermal image, the person standing on the base surface can determine the fit of the shoe using a monitor arranged above the base surface.

When determining the fit of garments such as blouses, jackets and trousers, the majority of solutions are based on measuring the wearer’s body/body parts, for example by means of conventional measurement ( US$2,159,035 ), by means of photographic surveying ( US 5956525 A ) or using a 3-D body scanner ( Ashdown, et al., NTC Project: S08-CR03, 2008 ) and the subsequent comparison of the collected data with individual parameters measured on the garment, such as chest circumference, waist circumference and length.

The WO 2012/075298 A1 discloses a method for categorizing body shapes, whereby a set of measurement data of the respective body part of interest (in front and side views) from a large number of subjects is subjected to a principal component analysis. The measurement data is generated by conventional measurement or 3D scanning. The calculated principal components are incorporated into the subsequent cluster analysis; the results of this cluster analysis ultimately serve to establish shape categories, allowing the body shapes of the large number of subjects to be efficiently categorized.

The devices and methods known from the state of the art usually do not take into account, or only inadequately, the textile-physical properties of the garment/shoe, such as the elasticity of the materials used. In the case of shoes, the aforementioned scanner-assisted matching methods attempt to quantify the fit based on the disproportion between the shoe or last and the foot – with an exclusive focus on foot anthropometry and without adequate consideration of the material properties. However, these properties have a significant influence on the adaptation of the shoe shape to the human foot, as well as on the wearer's evaluation of this adaptation of the shoe shape, i.e., the fit.

The devices and methods known from the prior art also have disadvantages in terms of ease of use and cost intensity. For example, the wearer requires the use of complex scanning technology required to create a digitized image of the body/body part or foot. The process of scanning the respective body part/foot also requires a certain degree of technical expertise, as certain landmarks must be marked to identify the bone structures and the spatial orientation of the body being measured. The corresponding disadvantages also apply to the interiors of clothing, especially shoes, captured using scanning technology.

The German patent no. DE 10 2014 108 302 B4 (Robert Stocker ) discloses an improved measuring tool for measuring the interior of a garment, comprising at least one internal support element, an entrance opening, an exit opening, wherein the at least one exit opening is connected to the at least one entrance opening via at least one connecting passage, and further comprising a covering element.

However, this measuring tool also has disadvantages in that it is very complicated in design, is comparatively expensive to manufacture and shoe measurement with the measuring tool is carried out through several complex work steps, so that its mass use in online shoe mail order would incur high costs.

Description of the invention, task, solution, advantages

Based on the above considerations, the present disclosure is therefore based on the object of overcoming the above-mentioned disadvantages of the prior art and providing a measuring tool and method for measuring footwear which is easy to use in order to enable accurate, time-saving, effective measurement of a large number of different interiors of garments.

The inventors of the present disclosure have surprisingly achieved the object by means of the measuring tool defined in the claims The object is achieved by the method defined in the claims using the measuring tool, as is also evident from the accompanying exemplary embodiments. The solution according to the invention is based on a phase transition and the changes in the mechanical properties of chemical compounds during the phase transition.

In a first aspect, the present disclosure therefore relates to a measuring tool. In particular, in a first aspect, the present disclosure relates to a measuring tool suitable for measuring the interior of a footwear item, for example a sports shoe, a low shoe, or other shoes. The measuring tool can have a shaped body. The measuring tool can also have at least one handle. The shaped body can be in one of at least two states (A, B). In a first state (A), the shaped body can be plastically deformable. In a second state (B), the shaped body can be substantially plastically non-deformable.

Preferably, the molded body can heat up during the transition from the first state (A) to the second state (B). In particular, the molded body can heat up during the transition from the first state (A) to the second state (B) to a temperature corresponding to a human's body temperature, for example, between 35°C and 45°C, preferably approximately 40°C. In this way, the shoe can adapt to a natural foot temperature, so that the molded body can assume the shape and size of a warm human foot. This further improves the measurement result obtained.

The shaped body can be converted from the first state (A) to the second state (B) by a crystallization process. A crystallization process is understood to be any process in which a phase transition of a material can occur through crystal formation. For example, a crystallization process can be initiated in a supersaturated solution by initiation with nuclei. Preferably, during the crystallization process, the Crystallization energy is released in the form of heat, so that the molded body can heat up to approximately 35 °C to 45 °C.

In a further preferred implementation, the molded body can be reversibly converted between the first state (A) and the second state (B). In other words, the molded body can not only be converted from the first state (A) to the second state (B), but a reconversion from state (B) to state (A) is also possible.

The molded body may preferably comprise a shell and a mass of the molded body located within the shell. The molded body may be converted from the first state (A) to the second state (B) by a chemical or physical process.

The casing is preferably made of an elastic polymer material. In particular, the casing can be made of latex. This has the advantage that the casing can adapt to the shape of the molded body mass and protects the mass from the external environment of the molded body. Preferably, the casing is impermeable to water and/or air. In this case, the molded body can be used multiple times, with no air humidity or other substances contaminating the molded body mass.

The mass of the shaped body can essentially consist of a phase change medium, for example a supersaturated aqueous sodium acetate trihydrate solution, and a granulate. In the present disclosure, a phase change medium is understood to mean any medium in which both a phase transition from liquid to solid, which generally releases heat, and a phase transition from solid to liquid are possible. Examples of phase change media (PCM) include water, paraffin, a supersaturated aqueous sodium acetate trihydrate solution, Glauber's salt solution, sodium hydroxide solution, or alum salt solution. However, a supersaturated aqueous sodium acetate trihydrate solution is not suitable due to the comparatively low phase transition temperature and the non-toxicity of the substances used, the preferred phase transition medium.

In addition to the mass, the molded body can preferably contain a coil spring, preferably made of stainless metal. This facilitates the insertion of the molded body into the footwear. The coil spring is preferably made of a water-inert material. In particular, the coil spring can be made of precious metal. This ensures a particularly long service life for the measuring tool.

According to a preferred implementation, the handle shaft can have a first chamber and a second chamber. The first chamber can contain or be filled with a first mass of the handle shaft. The second chamber can contain or be filled with a second mass of the handle shaft. The handle shaft can also have a sieve. The sieve can be spatially arranged between the first chamber and the second chamber and separate the two chambers. The sieve can be impermeable to the granules and the spring steel element, so that the granules are held only in the first chamber, while the spring steel element is held in the second chamber. On the other hand, a crystallization process initiated in the second chamber can be transferred through the sieve into the first chamber. The chamber can also have a post-compaction plate. A post-compaction plate can be understood as any element that can achieve post-compaction of the mass in the molded body by exerting pressure.

In a preferred implementation, the handle shaft can comprise a handle shaft shell. The second chamber can comprise a spring steel element. In this case, the molded body can be converted from the first state A to the second state B by a chemical or physical process initiated by the at least one spring steel element.

The first mass of the hand shaft may preferably consist essentially of a phase change medium, for example a supersaturated aqueous Sodium acetate trihydrate solution, and a granulate. According to the present disclosure, granulate is understood to mean any plastic granulate which, in conjunction with a phase-change medium, can impart improved strength to the molded body or the handle.

The second mass of the hand shaft may preferably consist essentially only of a phase change medium.

In a further aspect, the present disclosure relates to a method for measuring the interior of a footwear item using the measuring tool according to the first aspect. The method may comprise the following steps.

In a first step, the measuring tool can be inserted into the interior of a shoe. During this step, the mold is in the first state (A). In a second step, the mold can be transferred from the first state (A) to the second state (B). In a third step, the measuring tool can be withdrawn from the interior of the shoe. In a fourth step, the mold or the measuring tool can be measured.

In a preferred implementation, the second step involves transferring the molded body from the first state (A) to the second state (B) while simultaneously recompacting the mass of the molded body. The recompacting of the mass can be achieved by applying pressure to the recompacting plate (27).

Preferably, after the fourth step, the measuring tool can be regenerated in a fifth step by transferring the shaped body from the second state (B) to the first state (A).

The procedure for measuring footwear can be carried out quickly and easily, even by non-technical personnel or assistants. It is efficient because A large number of shoes can be easily measured, and the measuring tool can be easily returned to its original state through the regeneration process. With one measuring tool, several measurements can be performed in one day. Furthermore, the measuring tool can be inexpensively produced in large quantities because it is constructed from simple materials (latex, hard plastic, medium, metal plates) and contains no moving or failure-prone mechanical parts. This makes the process efficient, cost-effective, and precise in its measurements.

Short description of the characters

In the following, some particular embodiments of the disclosure are described by way of example and not exhaustively with reference to the accompanying figures.

The specific embodiments serve only to illustrate the general inventive concept, but they do not limit the disclosure.

• Fig. 1 eine schematische Zeichnung eines Messwerkzeuges gemäß dem ersten Aspekt der vorliegenden Offenbarung.
• Fig. 2 ein Schema zur Durchführung eines Verfahrens zur Vermessung eines Schuhwerkes unter Regenerierung des Messwerkzeuges gemäß dem zweiten Aspekt der vorliegenden Offenbarung.

In the special embodiments show:

• Fig. 1 a schematic drawing of a measuring tool according to the first aspect of the present disclosure.
• Fig. 2 a scheme for carrying out a method for measuring a footwear with regeneration of the measuring tool according to the second aspect of the present disclosure.

Preferred embodiment of the disclosure

Fig. 1 shows a measuring tool (1) for measuring the interior of a shoe. The measuring tool consists of a molded body (10) and a handle (20). The molded body has a latex cover (15) and a mass located in the shell (15), consisting of an aqueous sodium acetate trihydrate solution and granules. The shaped body (10) is plastically deformable in a first state (A). In this state, the sodium acetate is in dissolved form. The granules are present as an insoluble component in the sodium acetate solution. However, triggered by a physical or chemical event, for example, by pressure waves and the resulting crystallization nuclei, the sodium acetate in the sodium acetate solution can crystallize out as sodium acetate trihydrate and thereby solidify the granules. In this second state (B), with sodium acetate trihydrate crystals and granules, the shaped body (10) is essentially plastically non-deformable. The transition from the first state (A) to the second state (B) occurs through a crystallization process. The crystallization process is fundamentally reversible, meaning that a return to the first state (A) from the second state (B) is possible. The recirculation is achieved by heating the molded body (10) in a water bath. For example, the molded body can be heated in a water bath at 70°C for a period of 2 to 3 hours, causing all sodium acetate trihydrate crystals to re-dissolve. After all crystals have dissolved, a sodium acetate solution is obtained, and the molded body becomes elastic again. In other words, the molded body can be fully recycled for further measurement. The molded body also has a latex casing (15) that is airtight. A mass of the molded body (10) located in the casing (15), consisting of an aqueous sodium acetate solution and granules, can thus be protected from external influences (humidity and ambient air), so that the crystallization and dissolution processes can be carried out reproducibly using defined and specified procedures. In addition to the mass, the molded body (10) can also have a screw element made of stainless steel, which provides the molded body with sufficient rigidity when inserted into the footwear.

The handle (20) consists of a first chamber (21), a second chamber (22), a post-compaction plate (27) and a casing (15) of the handle (20). The first chamber (21) contains a first mass of the handle shaft (20). This first mass of the handle shaft has the same composition as the mass of the molded body, i.e., the first mass consists of sodium acetate solution and granules in the same composition. The mass of the first chamber is in fluid contact with the mass of the molded body. If crystallization occurs within the first chamber, crystallization in the molded body is also triggered, albeit with a time delay. The second chamber (22) contains a second mass of the handle shaft (20). The second mass essentially consists of an aqueous sodium acetate solution, but in this case, no granules. Furthermore, a spring steel element (30) is located within the second chamber (22), with which pressure waves can be generated to initiate the crystallization process. Pressing the spring steel element generates a clicking sound as a pressure wave, which triggers the crystallization of the sodium acetate trihydrate in the second chamber. Crystallization proceeds through the sieve (25) into the first chamber (21) and from there into the molded body. The sieve (25) serves to prevent the granulate from entering the second chamber of the hand shaft (20), which could negatively impact the functionality of the spring steel element. The sieve (25) also serves to prevent the spring steel element from passing from the second chamber (22) into the first chamber (21). The molded body (10) can thus be converted from the first state (A) to the second state (B) by a chemical or physical process triggered by the spring steel element (30). The initial heat released during the conversion process from the first state (A) to the second state (B), approximately 40°C, roughly corresponds to the body temperature of a human foot. This heat is transferred to the materials of the footwear being measured, which therefore exactly corresponds to the natural ambient heat of the shoe and foot during use. This helps to achieve a natural and precise measurement result for the desired measurement range of the front shoe area. The post-compaction plate (27) is essentially made of hard plastic and is dimensionally stable. The sieve (25) is permeable to the sodium acetate solution, but it retains the granules in the first Chamber. The handle shaft (20) also has a shell, which is constructed in one piece with the shell of the molded body (10). In this example, the shell is airtight, so that a defined chemical composition can be maintained within the handle shaft without external influences (i.e., changes in air and water concentration).

Fig. 2 shows the steps of a method for measuring the interior of a footwear using the measuring tool (1). The method comprises the following steps. In a first step, the measuring tool (1) is inserted into the interior of the shoe with the aid of the hand shaft (20), wherein in this step the molded body (10) is in a first state (A). This process is considerably simplified if the molded body contains a screw element made of steel, so that better rigidity of the molded body (10) is achieved. After insertion into the footwear, the molded body lies tightly on all sides against the inner lining of the footwear. The contact is ensured by the subsequent pressing with the hand shaft and the post-compaction plate. In a second step, the molded body (10) is transferred from the first state (A) to the second state (B). In this process, the molded body (10) is transferred from the first state (A) to the second state (B) while simultaneously re-compacting the mass of the molded body (10) by exerting pressure on the re-compaction plate (27). The crystallization process for transferring the molded body to state (B) occurs through a physical or chemical event, for example, through pressure waves generated by the spring steel element (30). The sodium acetate contained in the sodium acetate solution is crystallized first in the second chamber of the handle, then via the sieve in the first chamber of the handle, and finally in the molded body, so that the mass is solidified in combination with the granules. In this second state (B), the molded body (10) with sodium acetate trihydrate crystals and granules is essentially plastically non-deformable. The phase transition energy released during the phase transition corresponds to a temperature of approximately 40 °C and thus approximately the body temperature of a human foot. How heat is transferred in doing so, the materials of the footwear to be measured are taken into account, which therefore corresponds exactly to the natural ambient temperature of the shoe and foot during use. This helps to obtain a natural and exact measurement result for the desired measurement range of the forefoot area. In a third step, the measuring tool (1) is pulled out of the interior of the shoe using the hand shaft (20). During this step, the shape of the molded body is retained. In a fourth step, the molded body (10) or the measuring tool (1) is measured. Because the molded body has the same shape and size as the interior of the footwear, all of the essential parameters of the footwear interior can be determined using the molded part alone. In a fifth step, the measuring tool (1) is regenerated by transferring the molded body (10) from the second state (B) to the first state (A). For this purpose, the measuring tool is heated to approx. 60 to 70 °C heated water bath over a period of 2 to 3 hours.

List of reference symbols

1

measuring tool

10

molded body

15

Covering

18

coil spring

20

Handschaft

21

first chamber of the handicraft

22

second chamber of the handschaft

25

Sieve

27

Recompaction plate

30

Spring steel element

Claims (12)

Measuring tool (1), in particular measuring tool (1) for measuring the interior of a footwear, comprising: - a shaped body (10) and - at least one hand shank (20), wherein the shaped body (10) can have at least two states (A, B), wherein in a first state (A) the shaped body (10) is plastically deformable and in a second state (B) the shaped body (10) is substantially plastically non-deformable, wherein the shaped body (10) can be converted from the first state (A) to the second state (B) by a crystallization process. Measuring tool (1) according to claim 1, wherein the shaped body (10) is reversibly transferable between the first state (A) and the second state (B). Measuring tool (1) according to one of the preceding claims 1 or 2, wherein the shaped body (10) heats up during the transition from the first state (A) to the second state (B). Measuring tool (1) according to one of the preceding claims, wherein the shaped body (10) has a shell (15) and a mass of the shaped body (10) located in the shell (15), wherein the shaped body (10) can be converted from the first state (A) to the second state (B) by a chemical or physical process. Measuring tool (1) according to claim 4, wherein the sheath (15) consists of an elastic polymer material, preferably latex. Measuring tool (1) according to one of claims 4 or 5, wherein the mass of the shaped body (10) consists of an aqueous sodium acetate solution and a granulate. Measuring tool (1) according to one of the preceding claims, wherein the handle (20) comprises the following: - a first chamber (21) filled with a first mass of the hand shaft (20), - a second chamber (22) filled with a second mass of the hand shaft (20), - a sieve (25) between the first chamber (21) and the second chamber (22), - a compaction plate (27), and - a cover (15) of the hand shaft (20), wherein a spring steel element (30) is located within the second chamber (22) of the handle (20), wherein the shaped body (10) can be converted from the first state A into the second state B by a chemical or physical process triggered by the at least one spring steel element (30). Measuring tool (1) according to claim 7, wherein the first mass of the handle (20) consists of a phase change medium and a granulate. Measuring tool (1) according to one of claims 7 or 8, wherein the second mass of the handle (20) consists of a phase change medium. Method for measuring the interior of a footwear using a measuring tool (1) comprising a shaped body (10), wherein the shaped body (10) can have at least two states (A, B), wherein in a first state (A) the shaped body (10) is plastically deformable and in a second state (B) the shaped body (10) is essentially plastically non-deformable, wherein the shaped body (10) by a crystallization process from the first state (A) to the second state (B), the method comprising the following steps: a) inserting the measuring tool (1) into the interior of the shoe, wherein in this step the molded body (10) is in a first state (A); b) transferring the shaped body (10) from the first state (A) to the second state (B) by a crystallization process, c) Pulling the measuring tool (1) out of the interior of the shoe, d) Measuring the shaped body (10) or the measuring tool (1). Method according to claim 10, wherein in step b) the transfer of the shaped body (10) from the first state (A) to the second state (B) takes place with simultaneous recompaction of the mass of the shaped body (10). Method according to one of claims 10 or 11, wherein after step d) the measuring tool (1) is regenerated by transferring the shaped body (10) from the second state (B) to the first state (A).