Method for designing child shoe tree ground pattern based on dynamic and static foot models

A foot shape and static technology, applied to the foot or shoe last measuring device, footwear, clothing, etc., can solve the problem of poor comfort of children's shoes, and achieve the effect of high accuracy and good repeatability

Active Publication Date: 2013-12-11
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the design of children's shoe lasts in my country is mainly based on the size of the static foot shape; however, the comfort of children's shoes designed only based on the static foot shape data is not good.

Method used

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  • Method for designing child shoe tree ground pattern based on dynamic and static foot models
  • Method for designing child shoe tree ground pattern based on dynamic and static foot models
  • Method for designing child shoe tree ground pattern based on dynamic and static foot models

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Design steps of shoe last samples for children aged 1-2:

[0040] ①Acquisition of children's dynamic and static foot shapes; ②Extract dynamic and static foot images; ③Determine the key points of dynamic and static foot images; ④Measure the length, width and angle of key parts of dynamic and static foot images ; ⑤Convert the dynamic and static foot shape data and the shoe last sample data; ⑥Determine the shoe last sample data; ⑦Draw the shoe last sample graph. The "collection of children's static foot shape" and "extraction of static foot shape plantar images" are all completed in the computer using the Infoot three-dimensional laser scanning system and analysis software; the "children's dynamic foot shape collection" and "Extracting dynamic foot-shaped plantar images" is completed in the computer using the Footscan plantar pressure testing system and analysis software; "Shoe last bottom sample graphics" are all completed in the computer using CoreDRAW graphics soft...

Embodiment 2

[0056] Design steps of shoe last samples for children aged 2-4:

[0057] ①Acquisition of children's dynamic and static foot shapes; ②Extract dynamic and static foot images; ③Determine the key points of dynamic and static foot images; ④Measure the length, width and angle of key parts of dynamic and static foot images ; ⑤Convert the dynamic and static foot shape data and the shoe last sample data; ⑥Determine the shoe last sample data; ⑦Draw the shoe last sample graph. For the specific method, please refer to the content in Example 1.

[0058] The determination of the bottom sample data of the shoe last determines the comfort of the shoe last. In this implementation method, the corresponding relationship between the actual bottom sample data of the shoe last and the dynamic and static foot shape data is as follows:

[0059] Last sample length=157.2mm +7%*157.2mm -5mm

[0060] The length of the first metatarsophalangeal part of the last=118.1mm -5mm

[0061] The length of the f...

Embodiment 3

[0072] Design steps of shoe last samples for children aged 4-6:

[0073] ①Acquisition of children's dynamic and static foot shapes; ②Extract dynamic and static foot images; ③Determine the key points of dynamic and static foot images; ④Measure the length, width and angle of key parts of dynamic and static foot images ; ⑤Convert the dynamic and static foot shape data and the shoe last sample data; ⑥Determine the shoe last sample data; ⑦Draw the shoe last sample graph. For the specific method, please refer to the content in Example 1.

[0074] The determination of the bottom sample data of the shoe last determines the comfort of the shoe last. In this implementation method, the corresponding relationship between the actual bottom sample data of the shoe last and the dynamic and static foot shape data is as follows:

[0075] Last sample length=175.9mm +7%*175.9mm -5mm

[0076] The length of the first sole of the last = 132.0mm -5mm

[0077] The length of the fifth metatarsophal...

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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 [0001] The invention relates to a design method of a shoe last pattern of children's shoes. The method combines dynamic and static foot shape data of children, and the obtained shoe last pattern conforms to the characteristics of children's foot development and the law of movement, and belongs to the field of children's shoes. production area. Background technique [0002] Static foot form in children refers to the form of the foot in a stationary standing position; dynamic foot form refers to the form of the foot in a moving situation. The difference in size between dynamic and static foot shapes is mainly determined by the nature of the arch. There are three types of arches in the foot, one is the transverse arch located at the metatarsophalangeal joint of the forefoot; the other two types are the longitudinal arch located on the medial and lateral sides of the midfoot. When the foot moves, the transverse arch changes the width of the forefoot, while the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A43D1/02
Inventor 周晋陈武勇徐波
Owner SICHUAN UNIV
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