CN103431582A - Method for designing child shoe tree ground pattern based on dynamic and static foot models - Google Patents
Method for designing child shoe tree ground pattern based on dynamic and static foot models Download PDFInfo
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- CN103431582A CN103431582A CN2013103432229A CN201310343222A CN103431582A CN 103431582 A CN103431582 A CN 103431582A CN 2013103432229 A CN2013103432229 A CN 2013103432229A CN 201310343222 A CN201310343222 A CN 201310343222A CN 103431582 A CN103431582 A CN 103431582A
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Abstract
The invention discloses a novel method for designing a child shoe tree ground pattern based on dynamic and static foot models of children. The method comprises the steps of (1) collecting the dynamic and static foot models of the children; (2) extracting sole images from the dynamic and static foot models; (3) determining key points of dynamic and static sole images; (4) measuring the length and width sizes and angles of key portions of the dynamic and static sole images; (5) converting dynamic and static foot model data into shoe tree ground pattern data; (6) determining the shoe tree ground pattern data; (7) drawing shoe tree ground pattern figures. The method has the advantages of ingenious conception, accurate data and good repeatability, the dynamic and static foot model data of a 1: 1 ratio are acquired respectively through a pressure sensor and a three-dimensional laser scanner, and a conversion model for the dynamic and static foot model data and the shoe tree ground pattern data is established based on the difference between the dynamic and static foot models and the rule of the difference, so that the child shoe tree ground pattern capable of better meeting the foot development law of the children is designed, and shoes for the children made according to the child shoe tree ground pattern have higher comfort level.
Description
Technical field
The present invention relates to a kind of method for designing of children's shoes last outline, the method combines the dynamic and static pin type data of children, and the last outline obtained meets characteristics and the laws of motion that children's foot is grown, and belongs to the production field of children's shoes.
Background technology
The static pin type of children refers to the form of foot when standing still posture; Dynamically the pin type refers to the form of foot under motion conditions.The difference of dynamic and static pin type aspect size is mainly that the character by arch of foot is determined.The arch of foot of foot has three types, and a kind of is the horizontal arch of foot that is positioned at half sole articulationes metatarsophalangeae position; Other two types is the vertical arch of foot that is positioned at inboard, foot middle part and the outside.Work as foot movement, horizontal arch of foot has changed the width of ball of foot, and vertical arch of foot causes the variation on length direction.Foot arc structure is extremely important to the safety of foot: foot arc structure has played and has alleviated the instantaneous high pressure produced while contacting with ground at walking mesopodium middle part, the safety of protection foot middle part ligament and musculature on the one hand; On the other hand, foot arc structure has played the function served as bridge that the pressure that will be positioned at heel is transmitted to Forefoot, makes plantar pressure distribute rationally.
For the children in growing up, from after independent ambulation, the structure of foot is reached maturity gradually, foot sizing progressively increases, until substantially perfect (the Muller S. of growth basic forming, foot function of arch of foot 6 years old the time, Carlsohna A., Muller J., et al., Static and dynamic foot characteristics in children aged 1-13 years:A cross-sectional study, Gait and Posture, 2012,35(3): 389-94.).Therefore, in this growth course, difference dynamic, static and dynamic and static pin type is different along with the increase at age.Although static pin type can both reflect the variation of children's foot sizing substantially, static pin type has but been ignored under motion conditions the change of parameter aspect size that the variation due to arch of foot causes and angle.Therefore, when design children's shoes last outline, the difference between dynamic, static pin type and sound state pin type be need to consider simultaneously, its law of development that meets children's foot and movement characteristic just can be made.
With the method for testing of numerous static pin types, compare, the acquisition method of existing dynamic pin type is less, only have two kinds: a kind of is to allow the experimenter vola scribble prepared Chinese ink, and gather dynamic footprint image (Stavlas P. by a test zone of being laid by blank sheet of paper, Grivas T B., Michas C., et al., The evolution of foot morphology in children between 6 and 17 years of age:a cross-sectional study based on footprints in a mediterranean population, The Journal of Foot and Ankle Surgery, 2005, 44(6): 424-8.), another kind is to adopt the method for three-dimensional motion modeling to simulate dynamic pin type (the Luximon A. of foot when motion, Luximon Y.. Preliminary Study on Dynamic Foot Model //Duffy V. G. Digital Human Modeling. Berlin:Springer(Verlag Berlin), 2011:321-7.).Yet these two kinds of methods all take time and effort, can not promote in the investigation of great amount of samples.Dynamically the limitation of pin type acquisition method, directly had influence on the application of dynamic pin type in children's shoes shoe last designing field.Thus, the main size based on static pin type of the design of Chinese children footwear shoe tree; Yet only based on static pin type data, designed children's shoes comfortableness is bad.
Summary of the invention
The objective of the invention is to improve the design of Chinese children footwear last outline, a kind of new method that designs the children's shoes last outline that meets children's foot law of development and movement characteristic based on dynamic and static pin type data is provided.
To achieve the object of the present invention, inventor's systematic research 1000 dynamic and static pin type data of 2-11 year children, the method that new dynamic pin type gathers and analyzes has been proposed, and analysis and comparison dynamic and static pin type characteristics and the difference aspect three of dimensional parameters, angle parameter and scale parameters; The result of these children's samples shows, dynamically the long growth of pin will be faster than static state, and the long growth of pin is wide faster than pin, thereby on the one hand, with the increase children's at age pin type gradually by the roomy slender type that changes into; On the other hand, there is 7.0% mean difference between dynamic and static pin length.The growth of horizontal, the vertical arch of foot of evaluation children that thus, can be quantitative data in conjunction with dynamic and static pin type; Simultaneously, by the pin type data in conjunction with dynamic and static, the inventor has further understood the motion morphology of children's foots, the data transfer device of clear and definite dynamic and static pin type and last outline: dynamically the pin type has reflected the effect of arch of foot under motion conditions, the effect of horizontal, vertical arch of foot has increased the width of half sole and flank, thereby the dynamic width size has represented foot Breadth Maximum at the volley, dynamic pin molded breadth degree directly can be applied as to the width dimensions of shoe tree; The design that static pin type length dimension is directly used in the shoe tree length dimension can guarantee that Dian position, each position of shoe tree conforms to the pin type.Data transaction model based on above, the inventor has developed the last outline of a series of children's health footwear.
The present invention is optimized the design procedure of children's health footwear last outline, and the step of novel design method is: the 1. collection of the dynamic and static pin type of children; 2. extract the vola image of dynamic and static pin type; 3. determine the key point of dynamic and static vola image; 4. measure length and width size and the angle of dynamic and static vola image key position; 5. sound state pin type data and last outline data are changed; 6. determine the last outline data; 7. draw the last outline figure.
Technical characterstic of the present invention is:
1, the method for " collection of the dynamic and static pin type of children " in described design procedure is: dynamically pin type applying pressure sensor gathers.Children walk by being layed in the pressure sensor in six meters runway centre positions with self-selected speed, produce interactional power between foot and capacitance pressure transducer,, this power has changed the current value of capacitance pressure transducer,, the difference of front and back current value, through certain signal screening and amplification, has finally obtained the pressure value at each position, vola.The force value that the pressure sensor all contacted with foot reflects has formed dynamic pin type image.Static pin type adopts the method for 3 D laser scanning to gather that children stand still and foot static three-dimensional image during double-legged uniform distribution body wt.The image-forming principle of laser scanner is, by three Laser video camera heads from three orthogonal angles respectively with the cross section of the velocity scanning foot of 50Hz, gathered all cross sections are become to 3D solid by the acquisition software matching, thereby obtain static pin type image.
2, " extracting and moving in described design procedure, the vola image of static pin type " method be: the dynamic extracting method of pin type: the time range of determining the full sole contact phase, (the result of study based on 1000 healthy children gait cycles, the phase of landing accounts for 60.0% of whole gait cycle, land interim, the time range of full sole contact phase is 9.0-13.9%), exporting those frame plantar pressure data of contact area maximum in time cycle 9.0-13.9% to EXCEL software is analyzed, determine the corresponding relation of plantar pressure value and color, and reduction plantar pressure image (force value can be shown as from high to low from redness to blue process), export the dynamic footprint 1:1 of reduction to PaintShop, the extracting method of static pin type: select the foot bottom view, the cross section, dynamic vola that the function of then applying dynamic cross section is extracted respectively the first frame is footprint, and the cross section, vola of extracting the area maximum is the vola profile.
3, the method for " the determining the key point of dynamic and static vola image " in described design procedure is: draw out foot axis (the heel salient point is to the line of second toe mid point), and the reference coordinate of set up measuring, the then outer salient point of mark the first articulationes metatarsophalangeae, the outer salient point of the 5th articulationes metatarsophalangeae, flank position (flank footprint from sufficient axis point) farthest and the heart position (mid point of heel area) of calling in person.
4, " measuring and moving in described design procedure, length and width size and the angle of static vola image key position " parameter have: pin long (heel is to the distance between the longest toe head), the first sole of the foot toe bit length, the 5th sole of the foot toe bit length, flank length, heel heart length, castor exterior feature wide (the profile plagioclases of the first articulationes metatarsophalangeae to the five articulationes metatarsophalangeaes), waist curve wide (the concave point of footprint is to the width of lateral profile), heel heart overall with (the widest point of heel region profile), intoe angle (angle between sufficient internal tangent and big toe internal tangent).
5, the method for " sound state pin type data and last outline data are changed " in described design procedure is: the extension position at each position of children's foot and the extension position of shoe tree need correspondence, the stability of guarantee pin in footwear like this, can not slide, therefore, the length of last outline designs according to the length dimension of static pin type; Therefore the difference of dynamic and static pin type means the relative displacement that foot may occur in footwear, can be used for determining that the minimum of children's shoes shoe tree puts surplus; Dynamically the intoe angle of pin type has reflected the largest motion yardstick of foot thumb under motion conditions, and therefore, the skew that dynamic intoe angle is controlled the shoe tree head dummy has been introduced in the design of children's shoes shoe tree.
6, the design parameter determination of children's shoes last outline is:
Length of pattern of last sole=static pin type length+7% pin length-5mm
Shoe last or hat block the first sole of the foot toe bit length=static pin type first sole of the foot toe bit length-5mm
Shoe last or hat block the 5th sole of the foot toe bit length=static pin type the 5th sole of the foot toe bit length-5mm
Shank nest span access location length=static pin type flank span access location length-5mm
Shoe last or hat block heel heart span access location length=static pin type heel heart span access location length-5mm
Shoe last or hat block basic width=dynamic pin type the first sole of the foot toe position profile tiltedly wide+dynamic pin type the 5th sole of the foot toe position profile is tiltedly wide
Shank nest width=dynamically pin type waist curve is wide
Shoe last or hat block heel heart overall with=dynamic pin type heel heart overall with
Shoe last or hat block intoe deviation angle=dynamic pin type intoe deviation angle
Above design parameter we to 1-2 year, 2-4 the year, 4-6 year and 6-10 the year four-stage children's shoes shoe trees the original pattern design in carried out actual application, in the situation that equivalent material and footwear structure, through the trying on of children, according to the footwear of above parameter designing, comfort level is preferably arranged.
The invention has the advantages that:
1, the present invention has considered static pin type and dynamic pin type when design children's shoes last outline simultaneously, characteristics according to dynamic and static pin type data, set up the transformation model of pin type and shoe last or hat block original pattern size, thereby determined the size of shoe last or hat block original pattern, and designed thus the children's shoes last outline; Children's shoes according to method design of the present invention have best comfort level.
2, the present invention obtains respectively and has extracted Static and dynamic pin type by applying three-dimensional laser scanning technique and pressure test technology, these two kinds of methods have not only substituted the method that traditional pin type gathers, and accuracy pin type high, reproducible, that can be used in great amount of samples is tested, the healthy shoe that meets children's foot development characteristics for large-scale production provides necessary condition, make the children's health footwear can adapt to more, the requirement of foot growth faster, to meet the demand of numerous colony of children consumers.
The accompanying drawing explanation
Fig. 1 is children's foot profile and the footprint figure that in the specific embodiment of the invention, the Infoot three-dimensional laser scanner obtains
Fig. 2 is children vola that in the specific embodiment of the invention, the Footscan Footscan obtains plantar pressure distribution numerical value and the color schematic diagram while entirely contacting
Fig. 3 determines dynamic and static pin type length, width and angle schematic diagram in the specific embodiment of the invention
Fig. 4 is last outline length in the specific embodiment of the invention, width and angle orientation schematic diagram
Fig. 5 is 1-2 year children's last outline schematic diagram in the specific embodiment of the invention 1
Fig. 6 is 2-4 year children's last outline schematic diagram in the specific embodiment of the invention 2
Fig. 7 is 4-6 year children's last outline schematic diagram in the specific embodiment of the invention 3
Fig. 8 is 6-10 year children's last outline schematic diagram in the specific embodiment of the invention 4
The specific embodiment
The specific embodiment of the present invention mainly based on 1-2 year, 2-4 year, 4-6 year and 6-10 year four sections of children's health footwear last outlines design.The data that the footwear of these four sections of footwear adopt come from the foot sample of 1000 healthy childrens that we gather.Therefore, in embodiments of the invention resulting best shoe tree comfort level may be due to the difference of children's sample difference to some extent.
Embodiment 1
The design procedure of 1-2 year children's last outline:
1. the collection of the dynamic and static pin type of children; 2. extract the vola image of dynamic and static pin type; 3. determine the key point of dynamic and static vola image; 4. measure length and width size and the angle of dynamic and static vola image key position; 5. sound state pin type data and last outline data are changed; 6. determine the last outline data; 7. draw the last outline figure.Described " collection of the static pin type of children " and " extracting static pin type vola image " are all used Infoot three-dimensional laser scanning system and analysis software to complete in computer; Described " collection of the dynamic pin type of children " and " extracting dynamic pin type vola image " all used Footscan Footscan and analysis software to complete in computer; Described " measuring length and width size and the angle of dynamic and static vola image key position " and " drawing the last outline figure " all used the CoreDRAW graphics software to complete in computer.
At first enter the collection of the dynamic and static pin type of foot: obtained and the static foot threedimensional model of actual pin type 1:1 and dynamic plantar pressure distributed data by Infoot three-dimensional laser scanner and Footscan Footscan, these data are saved in respectively in scanning system analysis software separately.For static three-dimensional foot model, select the foot bottom view, the function of then applying dynamic cross section is extracted respectively sole footprint 1 and contour curve 2(as Fig. 1); For the plantar pressure distributed data, at first determine the drafting foundation of that frame of contact area maximum in gait cycle scope 9.0-13.9% as dynamic pin type image, this two field picture is exported in EXCEL software, the application screening function, give respectively different pressures value color, represented respectively from the high pressure values to the low pressure values to blueness by redness, thereby obtained dynamic pin type image (as Fig. 2).Static and dynamic pin type image 1:1 is exported in the CoreDRAW image software and measured.
Next carry out the measurement at definite and each position of key position.Key position point is: heel salient point and second toe mid point, and between 2, line forms sufficient axis, sets up thus the reference coordinate of measuring; Then the outer salient point of mark the first articulationes metatarsophalangeae, the outer salient point of the 5th articulationes metatarsophalangeae, He Zhongxin position, flank position.The test of each position length and width size and angle adopts the method for testing of standard to carry out, and does not repeat them here.Finally obtain test result 3(Fig. 3) and 4(Fig. 4).
Definite comfortableness that is determining shoe tree of last outline data, in this implementation method, the corresponding relation of actual last outline data and dynamic and static pin type data is as follows:
Length of pattern of last sole=148.3mm+7%*148.3mm-5mm
Shoe last or hat block first sole of the foot toe bit length=111.5mm-5mm
Shoe last or hat block the 5th sole of the foot toe bit length=91.3mm-5mm
Shank nest span access location length=60.8mm-5mm
Shoe last or hat block heel heart span access location length=26.7mm-5mm
Shoe last or hat block basic width=61.1mm
Shank nest width=45.6mm
Shoe last or hat block heel heart overall with=41.1mm
Shoe last or hat block intoe deviation angle=9.1 °
After determining each spot size information, only need length dimension, width dimensions and Angular Dimension are stitched together (Fig. 5), form length 5, width 6 and the angle 7 of last outline, thereby complete 1-2 year children's health footwear last outline 8(Fig. 6).
Embodiment 2
The design procedure of 2-4 year children's last outline:
1. the collection of the dynamic and static pin type of children; 2. extract the vola image of dynamic and static pin type; 3. determine the key point of dynamic and static vola image; 4. measure length and width size and the angle of dynamic and static vola image key position; 5. sound state pin type data and last outline data are changed; 6. determine the last outline data; 7. draw the last outline figure.Concrete method can refer to the content in embodiment 1.
Definite comfortableness that is determining shoe tree of last outline data, in this implementation method, the corresponding relation of actual last outline data and dynamic and static pin type data is as follows:
Length of pattern of last sole=157.2mm+7%*157.2mm-5mm
Shoe last or hat block first sole of the foot toe bit length=118.1mm-5mm
Shoe last or hat block the 5th sole of the foot toe bit length=101.2mm-5mm
Shank nest span access location length=64.5mm-5mm
Shoe last or hat block heel heart span access location length=28.3mm-5mm
Shoe last or hat block basic width=69.3mm
Shank nest width=36.0mm
Shoe last or hat block heel heart overall with=46.9mm
Shoe last or hat block intoe deviation angle=3.7 °
Described each numerical value all comes from 1000 2-11 year healthy children foot sound state pin type data.
After determining each spot size information, only need length dimension, width dimensions and Angular Dimension are stitched together, form the linear profile of last outline, thereby complete 2-4 year children's health footwear last outline 9(Fig. 7).
Embodiment 3
The design procedure of 4-6 year children's last outline:
1. the collection of the dynamic and static pin type of children; 2. extract the vola image of dynamic and static pin type; 3. determine the key point of dynamic and static vola image; 4. measure length and width size and the angle of dynamic and static vola image key position; 5. sound state pin type data and last outline data are changed; 6. determine the last outline data; 7. draw the last outline figure.Concrete method can refer to the content in embodiment 1.
Definite comfortableness that is determining shoe tree of last outline data, in this implementation method, the corresponding relation of actual last outline data and dynamic and static pin type data is as follows:
Length of pattern of last sole=175.9mm+7%*175.9mm-5mm
Shoe last or hat block first sole of the foot toe bit length=132.0mm-5mm
Shoe last or hat block the 5th sole of the foot toe bit length=113.4mm-5mm
Shank nest span access location length=72.1mm-5mm
Shoe last or hat block heel heart span access location length=31.7mm-5mm
Shoe last or hat block basic width=73.4mm
Shank nest width=32.2mm
Shoe last or hat block heel heart overall with=49.7mm
Shoe last or hat block intoe deviation angle=1.6 °
Described each numerical value all comes from 1000 2-11 year healthy children foot sound state pin type data.
After determining each spot size information, only need length dimension, width dimensions and Angular Dimension are stitched together, form the linear profile of last outline, thereby complete 4-6 year children's health footwear last outline 10(Fig. 8).
Embodiment 4
The design procedure of 6-10 year children's last outline:
1. the collection of the dynamic and static pin type of children; 2. extract the vola image of dynamic and static pin type; 3. determine the key point of dynamic and static vola image; 4. measure length and width size and the angle of dynamic and static vola image key position; 5. sound state pin type data and last outline data are changed; 6. determine the last outline data; 7. draw the last outline figure.Concrete method can refer to the content in embodiment 1.
Definite comfortableness that is determining shoe tree of last outline data, in this implementation method, the corresponding relation of actual last outline data and dynamic and static pin type data is as follows:
Length of pattern of last sole=201.6mm+7%*201.6mm-5mm
Shoe last or hat block first sole of the foot toe bit length=151.0mm-5mm
Shoe last or hat block the 5th sole of the foot toe bit length=130.2mm-5mm
Shank nest span access location length=82.7mm-5mm
Shoe last or hat block heel heart span access location length=36.3mm-5mm
Shoe last or hat block basic width=81.8mm
Shank nest width=28.5mm
Shoe last or hat block heel heart overall with=55.4mm
Shoe last or hat block intoe deviation angle=1.6 °
Described each numerical value all comes from 1000 2-11 year healthy children foot sound state pin type data.
After determining each spot size information, only need length dimension, width dimensions and Angular Dimension are stitched together, form the linear profile of last outline, thereby complete 6-10 year children's health footwear last outline 11(Fig. 9).
Claims (7)
1. the method for an and static pin type design children's shoes last outline dynamic based on children, its design procedure is: the 1. collection of the dynamic and static pin type of children; 2. extract the vola image of dynamic and static pin type; 3. determine the key point of dynamic and static vola image; 4. measure length and width size and the angle of dynamic and static vola image key position; 5. dynamic and static pin type data and last outline data are changed; 6. determine the last outline data; 7. draw the last outline figure; " determining the key point of dynamic and static vola image " in described step, " measuring length and width size and the angle of dynamic and static pin type key position " and " drawing the last outline figure " are all to use PaintShop to complete in computer.
2. the method for the dynamic and static pin type of children according to claim 1 collection is: dynamic pin type adopts pressure sensor gathers, static pin type adopts three-dimensional laser scanner to obtain.
3. the method for the dynamic pin type of extraction according to claim 1 vola image is: export those frame plantar pressure data of contact area maximum in the 9.0-13.9% gait time to EXCEL software, determine the corresponding relation of plantar pressure value and color, arrive blue procedural representation force value from high to low by redness, and preserve dynamic pin type image with the ratio of 1:1.
4. the method for the static pin type of extraction according to claim 1 vola image is: select the foot bottom view, then the cross section, dynamic vola that the function of applying dynamic cross section is extracted respectively the first frame is footprint, the cross section, the dynamic vola of that frame of extracting vola area of section maximum is the vola profile, and preserves footprint and the profile of static pin type with the ratio of 1:1.
5. according to claim 1 dynamic and static pin type data and last outline data are changed, it is characterized in that: the dynamic width size can represent foot Breadth Maximum at the volley; Static pin type length dimension is guaranteed the correspondence of the key position position of pin and footwear; The difference average out to 7% of the dynamic and static pin type of children, the 7% minimum margin value of putting as the children's shoes last outline that pin is long; Dynamically the intoe angle has guaranteed that last outline has enough spaces at the big toe position.
6. through the data transaction of above four aspects, can determine the size of children's shoes last outline.
7. the method for definite last outline data according to claim 1 is:
Length of pattern of last sole=static pin type length+7% pin length-5mm;
Shoe last or hat block the first sole of the foot toe bit length=static pin type first sole of the foot toe bit length-5mm;
Shoe last or hat block the 5th sole of the foot toe bit length=static pin type the 5th sole of the foot toe bit length-5mm;
Shank nest span access location length=static pin type flank span access location length-5mm;
Shoe last or hat block heel heart span access location length=static pin type heel heart span access location length-5mm;
Shoe last or hat block basic width=dynamic pin type the first sole of the foot toe position profile tiltedly wide+dynamic pin type the 5th sole of the foot toe position profile is tiltedly wide;
Shank nest width=dynamically pin type waist curve is wide;
Shoe last or hat block heel heart overall with=dynamic pin type heel heart overall with;
Shoe last or hat block intoe deviation angle=dynamic pin type intoe deviation angle.
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| CN114648441A (en) * | 2022-02-11 | 2022-06-21 | 广东时谛智能科技有限公司 | Method and apparatus for shoe body design based on dynamic foot pressure distribution |
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