DE202006014389U1 - Terminal for automatically selecting parts of a component shoe system, means for automatically determining a foot (mis) position, a foot height, length and width therefor and component shoe system - Google Patents

Abstract

terminal (1) for automatically selecting parts of a shoe of a shoe system with standardized components based on an automatic foot measurement, characterized in that a device for automatic Determining at least one foot parameter, such as a foot length, foot width, foot width, Foot height and foot (mis) position, a database of foot parameter data over standardized Shoe inserts of the component shoe system and a user interface (6) are provided, on which the at least one determined foot parameters and / or a reference to at least one corresponding shoe insert are specifiable.

Description

Field of the invention

The The invention relates to a terminal for automatically selecting parts a component shoe system, automatic equipment Determining a foot (mis) position, a foot height, length and -width for it and a component shoe system according to the preamble of the claim 1, 4, 9, 13 and 17 respectively.

Background of the invention

Feet wise individual foot parameters such as foot length, foot width, walking distance, Foot height, heel width, Bile width, biliary position, and foot (mis) position, e.g. vertically, Spread, hollow, flat or normal position, on.

Optimal to the respective foot parameters customized shoes are custom made possible, which involves a high manual effort both for determining the respective Parameter as well as for the production of a corresponding shoe together with Insole for the case of a foot deformity require. For this purpose, several devices are known in the art known for determining the parameters, but by trained Personnel operated and evaluated their measurement results individually Need to become. The shoes and insoles are unique.

Shoes from industrial mass production, however, usually only consider the two Fußparameter Foot length and walking distance, and this only in rough grids such as 6 2/3 mm for the foot length at French Sting. A well-known example for labeling shoes industrial serial production with the two foot parameters foot length and walking distance is the width measurement system (WMS). Here are simple mechanical devices for determining the walking distance and the foot length used, where the loaded foot is sideways and is measured from the front with sliders.

Indeed find individual foot parameters, in particular foot deformities, for shoes from industrial series production no consideration. Though are individual insoles for foot misalignment after measurement the feet with corresponding Effort can be produced individually. However, these insoles are not matched to the industrially manufactured shoes and therefore not usable with every shoe. In addition, the insoles increase the cost because of the custom manufacturing and because they are already in the shoe existing shoe comfort insole redundant make the shoe.

Summary of the invention

Of the Invention is therefore the object of a terminal for automatic Selection of parts of a component shoe system, furnishings for automatically determining a foot (mis) position, a foot height, length and -width for it and a component shoe system according to the preamble of the claim 1, 4, 9, 13 and 17 respectively, with which a cost-effective, automatic, simple and fast as well as optimal individual adaptability a standard shoe from industrial mass production with a also produced in industrial mass production standard insole on a Foot is possible.

These The object is according to the features of claim 1, 4, 9, 13 or 17 solved.

Therefore is a component shoe system with one hand shoes standardized Inside length Inner width and / or inner height and on the other hand standardized, in particular orthopedic Insoles created in which for different combinations from inside length, Inner width and / or inner height The standard shoes each provided a set of insoles is the insoles for different foot parameters having. At a terminal, insoles for the standard shoes are automatic determinable to individualize the standard shoes for a given pair of feet. For this purpose, devices for automatic determination are in the terminal at least one foot parameter, such as foot length, foot width, walking distance, Foot height and foot (mis) position, one Database with foot parameter data over standardized Shoe inserts of the component shoe system and a user interface on which the at least one determined one Fußparameter and / or a reference to at least one corresponding shoe insert are specifiable, integrated.

By the automation of the foot parameter measurement and standardization of shoe components results in a simple and quick individual customization of standard shoes by means of a Shoe insert to individual foot shapes. Expensive custom-made can omitted. By the arbitrary combinability of shoe and insole can at a lower cost, greater variety at foot parameter combinations kept in retail stores.

The database may contain data such as inside length, inside width and / or inside height via different standard shoe models and at the terminal a shoe model can be selected via the user interface to which the reference to the insole can be specified on the basis of the at least one determined foot parameter. This can the customer uncomplicatedly put together his dream shoe at the terminal. The consulting costs decrease.

The Terminal contains suitably one Plate for loading with a foot, a scanning device for at least a portion of the underside of the loaded foot, one above the plate arranged Scanning light source for optically scanning a foot portion the top of the foot, one above the plate arranged illumination light source for illumination of the foot and / or an optical detection device directed to the top of the foot for the Light of the scanning and / or illumination light source. Thereby are with a minimum of hardware that can be used differently, all Functions feasible.

A Device for automatically determining a foot (mis) position, in particular for the terminal comprises a foot load panel and a scanning device for at least a portion of the underside of the loaded foot and means for identifying a foot zone, especially the metatarsal, in the scanned portion of the foot, for detecting the loaded area in the identified foot zone and for determining the foot deformity based on the detected loaded area.

Preferably the scanning device is a pressure measuring plate and the loaded one area is determined by comparing the pressure reading at the sampled points determined with a threshold. A scan through a pressure measuring plate is robust and without any special additional devices for data calculation and therefore inexpensive realizable.

The the means for determining the foot (mis) position are expediently for comparing the loaded area with the total area of the foot zone, especially the metatarsal, designed. Such a comparison is quick to carry out and simply e.g. can be implemented in software.

It It has been shown that it is useful to have one Hohlfuß, a normal foot or a flatfoot too determine if the loaded area within the metatarsal zone less than 15%, between 15% and 30% and over 30% of the total area of the identified metatarsal zone is.

The foot zone can by reference to a given pattern and / or by schematic screening be determined. Both possibilities are fast performing and simply e.g. can be implemented in software.

A Device for automatically determining a foot height contains above a step surface for a Foot one Scanning light source for optically scanning a foot portion between the toe and the lower leg and one on the foot section to be scanned directed optical detection means for the light of the scanning light source and means for determining the foot height of the detected Lichts, and is thus buildable with commercially available components.

The Scanning light source is appropriate before the toes and above the foot about an axis transverse to the Fußlängsachse arranged pivotally. The number of moving parts is thereby minimized, whereby the device is low maintenance.

The Light from the scanning light source can be a transverse to the Fußlängsachse over the foot extending light strip. With such a light strip, the height can be at a certain point be precisely determined and the processing of the recorded Pictures are easy.

to Determination of height of the foot will be the highest Point of light of the scanning light source in one of the optical Detection device recordable image and determined by calibration data the point becomes a height assigned. This is without a big one Requirements for computing power quickly and accurately feasible.

A Device for automatically determining a foot length and / or foot width comprises a foot load panel, an illumination light source to light the foot and the plate, an optical detection device directed to the top of the foot for the Light of the illumination light source and an evaluation device for determining a largest width and a greatest length in the of the image supplied to the detection device by comparison of pixel values with a threshold, making it easy with standard components and cost-effective built up.

The Detection device is conveniently provides black and white images. This simplifies the subsequent Image evaluation considerably, since only brightness differences are considered Need to become, such that a comparison of a pixel value with a brightness value sufficient for evaluation.

Conveniently, Both feet will be at the same time measured and the largest value for each Fußparameter is determined. However, every foot can also be measured individually, so for the right and for the left foot respectively different shoe inserts are used.

The shoes of the component shoe system are preferably insole-free and only after Inserting an insole finished and used bar. This leads to a reduction in costs, since the inner of the shoe does not have to be made suitable for walking comfort in addition to the insole, as is the case in the prior art.

The Shoes can several different external designs and the shoes and the insoles can be coordinated with each other Be that one set of insoles designed for all differently Shoes of the same combination of inner length, inner width and / or inner height fits. This results in a maximum of flexibility.

Conveniently, are the insoles for a flat, hollow, sinking, spreading and / or a defect-free Foot and / or for adjusting the foot height or of the foot height profile to the inner height or designed the inner profile of the shoe. This allows everyone essential foot parameters with only a shoe component optimally taken into account.

Further Embodiments and advantages of the invention will become apparent from the following description, the figures and the dependent claims.

figure description

1 schematically shows a terminal.

2 illustrates the measurement of foot length and foot width in the camera's coordinate system.

3 illustrates the measurement of the foot (mis) position in the coordinate system of the plate.

4 illustrates the measurement of foot height in the camera's coordinate system.

Detailed description of individual embodiments

This in 1 illustrated terminal 1 for determining a suitable shoe based on the measurement of a foot parameter comprises a plate 2 , An illumination light source, for example in the form of several on the plate 2 directed lamps 3 , a scanning light source, for example in the form of a laser 4 , an optical detection device, for example in the form of a CCD camera 5 , a user interface 6 with a keyboard or the like and / or a screen or printer or the like, as well as a controller 7 which may contain or be connectable to a database of component component information about a component shoe system.

The individual components are described below using a sample of the terminal 1 described.

At the beginning, a person looking for shoes steps with one foot 8th or expediently with both feet 8th Shoeless on the plate 2 , The plate 2 For this purpose, preferably has a stop 9 for the heels up. The foot position required for subsequent measurements, e.g. B. parallel to each other and spaced feet 8th , can have an ad in the user interface 6 shown or on the plate 2 be printed in the form of a schematic representation.

Now a determination can be made of the foot parameters "foot length" and "foot width".

This will be the feet 8th and at least the foot-adjacent area of the plate 2 through the lamps 3 illuminated from above and / or from the side. The CCD camera 5 takes a picture, for example, from diagonally forward. The picture should be at least the toe and the bile area of the feet 8th include. The camera is conveniently at a height of about 60 to 70 cm above the plate 2 arranged.

The picture, cf. exemplary 2 with subsequently added bright horizontal and vertical bars to illustrate the foot width and foot length, is subsequently used by the controller 7 evaluated. This will focus on the contrast between your feet 8th and the plate 2 turned off, for example, then is particularly strong when the plate 2 is black and feet 8th dressed in white socks. Optionally, a colored overlay on the plate 2 be placed in order to obtain a suitable contrast to the sock or barefoot measurement to skin color. This will allow those points in the image that make up the plate 2 show, from those points in the picture, the feet 8th show, for example, distinguish the brightness by comparison with a threshold, which is why preferably the image is evaluated in black and white. Then, for white socks, the non-black dot y ₀ (one pixel beyond a threshold, eg 10 for an 8 bit pixel) farthest from the heel in the y direction becomes each foot 8th determined. This point corresponds to the foot length. Further, the rightmost and leftmost x-directional non-black dots become x ₀ , x ₁ and x ₂ , x _{3 of} each foot 8th determined. The distance between the two points of these pairs of points corresponds to the respective foot width.

The (x, y) coordinates of the points thus determined in 2 coordinate system X, Y of the CCD camera shown are finally converted to mm. This is done on stored calibrations data is used. These are useful, as occur through the inclusion of obliquely above image distortions. If both feet 8th have been measured, the larger values of the two foot widths and the two foot lengths are expediently determined as the foot parameters "foot width" and "foot length" and the smaller ones discarded, but also an individual measurement for the right and the left foot 8th is possible.

The specific foot parameters "foot width" and "foot length" can be accessed via the user interface 6 which may also be a printer or include a printer.

The plate 2 , the lamps) 3 , the CCD camera 5 and the controller 7 form here a device for measuring the foot parameters "foot length" and "foot width". The individual components can also be part of other facilities of the terminal 1 form. Optionally, several or all of the individual components can also be designed as an independent module or partially shared.

Of the Foot parameter "Foot (mis) position" may be automatic as follows be determined.

This is the plate 2 preferably designed as a two-dimensional pressure sensor, the printed image of the loaded feet 8th eg as an analogue voltage value or digital value for each point (x ', y') in the coordinate system X ', Y' of the pressure sensor.

About the pressure sensor, a single two-dimensional print image can be recorded, see. 3 in the coordinate system X ', Y' of the pressure sensor. Preferably, however, the pressure is measured over a period of time, such as one second, and the highest pressure values for each coordinate (x ', y') of the pressure sensor are used as a print image for further processing.

to Evaluation of the print image with respect to a foot (mis) position will be several Zones over the Laid foot. Is appropriate especially a metatarsal zone, it can but also a heel, one or more bales and / or one or be provided several toe zones. The division takes place according to a stored pattern of the respective zone, which the print image, optionally after scaling in X'- and / or Y'-direction to the specific foot length and width or on the extension of the printed image, superimposed becomes. Those points in the print image that are after overlay within the pattern can be assigned to the respective zone become.

The midfoot zone 10 can in the simplest case by limiting by lines 11 . 12 . 13 and 14 To be defined. lines 11 and 12 are horizontal lines at 30% and 60% of the distance between the two points in the print image with the highest and lowest y 'value, respectively. line 13 is a vertical line at the smallest x 'value in the print image. line 14 connects the coordinate (x ₀ ', y ₀ ') with the largest x 'value below the line 11 with the coordinate (x ₁ ', y ₁ ') with the largest x 'value above the line 12 , Even simpler would be a vertical boundary line at x ₀ '.

Now the area of those points in the metatarsal zone becomes 10 in which a pressure value above a threshold has been measured, related to the area of those points in the metatarsal zone 10 in which the pressure value does not exceed the threshold value. In the simplest case, this can be done by counting the respective points. The threshold value is 0 in the simplest case, ie a distinction is made between "arbitrarily loaded" and "not loaded". Optionally, however, a higher threshold may be selected to suppress, for example, noise.

Finally will from the quotient between the "arbitrary charged "points and the "not burdened" points a conclusion regarding the foot (mis) position drawn. This can be done in the simplest case, that below a first threshold, a hollow, between the first threshold and a second threshold one normal and above the second Threshold determines a flatfoot becomes. Empirically, it has been found that for the above described simple subdivision with lines as well as with a pattern for the determination the midfoot zone at a loaded area below 15% of the total area the midfoot zone from a hollow, at 15% to 30% of a normal and above 30% of a flatfoot must become. These Values are empirical to the particular method for determining the metatarsal zone feinanpassbar.

Finally, the particular foot (mis) position may be via the user interface 6 be issued.

The pressure sensor of the plate 2 and the controller 7 form here a device for measuring the foot parameter "foot (mis) position". The two components can also be part of other facilities of the terminal 1 form. If appropriate, several or all of the individual components can also be designed as an independent module.

Also the foot parameter "foot height" can be determined.

The "foot height" is of interest, in particular at least at a certain point, namely at 50% and / or 60% of the foot length measured from the heel. Optionally, a height profile can be recorded via a foot section.

To determine the foot height, the back of the foot with the laser 4 sampled. The laser 4 , preferably at a height of 35 to 45 cm above the plate 2 , thereby producing strip-shaped, for example, red light and is as shown in front of and above the feet 9 arranged. The light strip 15 by the light beam 16 on the foot 8th is generated, cf. 1 and 4 , extends transversely to the longitudinal axis of the foot along the X'-axis of the pressure sensor of the plate 2 and is movable over the dorsum by pivoting the laser about an axis parallel to the X'-axis of the pressure sensor by means of a stepping motor or the like to scan it, for example, in ten steps between the toe and lower leg, ie along the Y'-axis of the pressure sensor of the plate 2 ,

About the camera 5 at each scan angle, ie at different locations along the Y'-axis of the pressure sensor of the disk 2 , a picture was taken and evaluated. The laser can be easily identified by the laser color, here red, in the captured image. For this purpose, the red values of the laser are expediently recorded and stored in advance in a reference recording. This ensures that only the laser information in the image is evaluated and all other colors are hidden, as in 4 is shown.

The evaluation is expediently carried out by determining the highest position of the red light in the image as seen by the camera, ie the largest y-value y ₁ in the coordinate system X, Y of the camera in which a red pixel is in the image, cf. 4 , This y-value y ₁ is compared with a height calibration profile for the current scan angle which has been previously acquired and stored. The height calibration profile for the current scan angle contains the corresponding height value in mm for several y-values in the coordinate system of the camera. Intermediate values can be interpolated or extrapolated linearly. For example, for ten scan angles, ie at ten locations along the Y'-axis of the pressure sensor of the disk 2 , the respective height of the feet 8th certainly.

Optionally, the foot height for each swivel angle also from the distance between the lowest y 'value y _{2 of} the laser light in the picture, ie the strip to the right and left of the foot, and the highest y value y ₁ , ie the highest point of the foot back to the cut by the pivot angle position, are determined.

The thus recorded height profile, and / or the foot height at, for example, 50% or 60% of the foot length measured from the heel, can via the user interface 6 be issued.

The height information may also be used to calculate, in a known manner, the "foot distance" along with the measured and optionally corrected width, eg by adding the width and height as in WMS, or by calculating half the circumference of an ellipse with the two axes Foot width and foot height. When calculating the width, gender-specific empirical data can be taken into account, eg between boys and girls. The foot distance can then be accessed via the user interface 6 be issued.

After determining the foot parameters, a combination of shoe and insole over the user interface 6 be issued. For this purpose, a component shoe system is used according to the invention on the one hand shoes of standardized inner length, inner width and / or inner height and on the other hand standardized orthopedic insoles. A shoe with a desired design is then completed with the best possible according to the particular Fußparametern the standardized insoles to a finished, optimally to the feet 8th to make a customized shoe.

With The insoles may be a standard shoe of a certain size (i.e. Foot length) and width optimal for a specific foot (mis) position individually finished. In addition it is possible over the Thickness of insoles this standard shoe on the respective walking distance, or over a thickness profile on a foot height profile to finish individually. If the foot parameters for both Feet separated can be determined In addition, both shoes individually adapted to the respective full become. Also the foot length can considered be thickened by the insole in front of the toe accordingly is.

Thus, in the simplest automated way, a standard shoe can be finished to an individual unique by measuring the feet 8th a corresponding insole is used.

Is appropriate the implementation all measurements to determine all foot parameters. possibly however, can dispense with certain foot parameters become dependent from the actual on the standard shoes and standard insoles of the component shoe system considered Fußparametern.

An exemplary procedure without detection al The foot parameter is as follows. About the user interface 6 At the beginning, a query of the person for whom the measurement is made is possible. Here can be conveniently distinguished between man, woman, boy and girl. The measurement of the foot length and foot width is expediently carried out in adults and children. While in adults the measurement of the foot (mis) position subsequently makes sense, the foot distance should instead be determined in children by measuring the foot height. This takes into account the specific age-specific requirements and ensures a fast run by avoiding unnecessary measurements. Subsequently, the recommended inserts can be displayed and / or printed, for example by reference to a type and / or a size. In addition, a shoe selection can be made.

1

terminal

2

plate

3

lamp

4

laser

5

CCD camera

6

User interface

7

control

8th

foot

9

attack

10

metatarsal zone

11

line

12

line

13

line

14

line

15

light strips

16

beam of light

Claims (20)

Terminal ( 1 ) for automatically selecting parts of a shoe of a shoe system with standardized components based on an automatic foot measurement, characterized in that an apparatus for automatically determining at least one foot parameter, such as foot length, foot width, foot width, foot height and foot (mis) position Database of foot parameter data on standardized shoe inserts of the component shoe system and a user interface ( 6 ) are provided, on which the at least one determined foot parameters and / or a reference to at least one corresponding shoe insert can be specified. Terminal according to claim 1, characterized in that the database contains data such as inside length, inside width and / or inside height over different standard shoe models and at the terminal ( 1 ) via the user interface ( 6 ) a shoe model can be selected, to which the reference can be specified on the basis of the at least one determined foot parameter. Terminal according to claim 1 or 2, characterized in that a plate ( 2 ) to load with a full ( 8th ), a scanning device for at least a portion of the underside of the loaded foot ( 8th ), one above the plate ( 2 ) arranged scanning light source for optically scanning a foot portion of the top of the foot ( 8th ), one above the plate ( 2 ) arranged illumination light source for illuminating the foot ( 8th ) and / or one on top of the foot ( 8th ) optical detection means are provided for the light of the scanning and / or illumination light source. Device for automatically determining a foot (mis) position, in particular for a terminal ( 1 ) according to one of claims 1 to 3, characterized in that a plate ( 2 ) for loading with one foot ( 8th ) and a scanning device for at least a portion of the underside of the loaded foot ( 8th ) and means for identifying a foot zone, in particular the metatarsal zone ( 10 ), in the scanned portion of the foot ( 8th ), for detecting the loaded area in the identified foot zone and for determining the Fußfehlstellung based on the detected loaded area are provided. Device according to Claim 4, characterized that the scanning device is a pressure measuring plate and the loaded area by comparing the pressure reading at the sampled points with a threshold value can be determined. Device according to claim 4 or 5, characterized in that the means for determining the foot (mis) position for comparing the loaded area with the total area of the foot zone, in particular the metatarsal area ( 10 ), are configured. Device according to one of claims 4 to 6, characterized in that the means for determining the foot (mis) position determine a hollow foot, a normal foot or a flat foot when the loaded area within the metatarsal zone ( 10 ) less than 15%, between 15% and 30% and over 30% of the total area of the identified metatarsal zone ( 10 ) is. Device according to one of claims 4 to 7, characterized that she for determining the foot zone by reference to a given pattern and / or by schematic Rasterung is configured. Device for automatically determining a foot height, in particular for a terminal ( 1 ) according to one of claims 1 to 3, characterized gekennzeich net, that above a footing area for a foot ( 8th ) a scanning light source for optically scanning a foot portion between the toe and the lower leg and an optical detection means for the light of the scanning light source directed to the foot portion to be scanned, and means for determining the height of the foot are provided from the detected light. Device according to claim 9, characterized in that the scanning light source in front of the toes and above the foot ( 8th ) Is arranged pivotably about an axis transverse to the Fußlängsachse. Device according to claim 9 or 10, characterized in that the light of the scanning light source is transverse to the longitudinal axis of the foot via the foot ( 8th ) extending light strip ( 15 ). Device according to one of claims 9 to 11, characterized that the highest Point of light of the scanning light source in one of the optical Detecting device recordable image can be determined and calibration data are provided, with which the point can be assigned a height. Device for automatically determining a foot length and / or foot width, in particular for a terminal ( 1 ) according to one of claims 1 to 3, characterized in that a plate ( 2 ) for loading with one foot ( 8th ), an illumination light source for illuminating the foot ( 8th ) and the plate ( 2 ), one on top of the foot ( 8th ) optical detection means for the light of the illumination light source and an evaluation device for determining a maximum width and a maximum length in the image supplied by the detection means by comparison of pixel values with a threshold value are provided. Device according to claim 13, characterized in that that the detection device for providing black and white images is designed. Device according to claim 13 or 14, characterized that pixel positions actual Sizing assignments Calibration data are provided. Device according to one of claims 4 to 15, characterized in that both feet ( 8th ) are measured simultaneously and the largest value for each foot parameter is determined or each foot is measured individually. Component shoe system with shoes standardized on the one hand Inside length Inner width and / or inner height and on the other hand standardized, in particular orthopedic Insoles, characterized in that for different combinations from inside length, Inner width and / or inner height The shoes are each provided with a set of insoles, the Insoles for different Fußparameter having. Component shoe system according to claim 17, characterized characterized in that the shoes are insole-free and only after insertion an insole are finished and usable. Component shoe system according to claim 17 or 18, characterized in that the shoes have a plurality of different outer configurations and the shoes and the insoles are coordinated with each other These are a set of insoles for all differently designed shoes the same combination of inside length, inside width and / or inside height fits. Component shoe system according to one of claims 17 to 19, characterized in that the Insoles for a flat, hollow, sinking, spreading and / or a defect-free Foot and / or for adjusting the foot height or of the foot height profile to the inner height or the inner profile of the shoe are configured.