Vamp design method capable of dividing pressure and areas

Abstract

The invention discloses a pressure-dividing and zoning vamp design method, which comprises the following steps of: dividing a foot part into a foot medial region, a forefoot region, an instep region, a foot posterior region and a foot lateral region, taking a plurality of test points in each region, taking an average value of pressure values of the test points in the same region of the foot part to obtain a pressure threshold value of the region, and finally selecting a vamp material according to the pressure threshold value. A quantifiable evaluation system for the vamp comfort is established, subjective feeling is weakened, and therefore the requirement of a runner for the vamp comfort is met.

Description

Technical Field

[0001] This invention relates to the field of shoe upper design technology, specifically to a pressure-splitting and partitioning shoe upper design method. Background Technology

[0002] Currently, the evaluation of shoe upper comfort mainly relies on subjective descriptions and experience, resulting in significant individual differences and a lack of scientifically quantifiable and unified standards. With technological advancements, particularly the widespread adoption of biomechanical laboratory analysis techniques and wearable smart devices, runners' understanding of shoe upper comfort is being reshaped, and evaluation criteria are evolving from vague subjective feelings to quantifiable and measurable objective data. However, biomechanical laboratory analysis techniques primarily focus on plantar pressure data, with relatively little research on instep pressure. This study aims to reshape the evaluation system for shoe upper comfort by establishing a relationship between upper material design and objective numerical values ​​(instep pressure values), thereby reducing the influence of runners' subjective feelings on the evaluation of shoe upper comfort. Summary of the Invention

[0003] The purpose of this invention is to provide a pressure-splitting and zoned upper design method, which divides the upper into pressure zones and selects different shoe materials according to the pressure value that the foot can withstand, thereby meeting the runner's requirements for upper comfort.

[0004] To achieve the above objectives, the solution of the present invention is: A method for designing a pressure-splitting and zoned shoe upper includes the following steps: Step 1: First, divide the subject's foot into four regions: medial foot region, forefoot region, dorsum of the foot region, posterior foot region, and lateral foot region. Take multiple test points in each region. Step 2: Then, the subject is tested in a seated position with their bare feet placed on the test table. A push-pull force gauge is used to slowly apply pressure to the test points in various areas of the foot. When the subject feels pain in their foot, the pressure is stopped and the pressure value of the push-pull force gauge is recorded. The test is repeated multiple times and the average value is taken to obtain the pressure value of each test point. Step 3: Then, take the average pressure value of each test point in the same area of ​​the foot to obtain the pressure threshold of that area; Step 4: Finally, select the material of the upper according to the pressure threshold. Soft fabric is used for the foot area with a low pressure threshold, while a supportive fabric is used for the foot area with a high pressure threshold.

[0005] In step 1, the test points in the medial region of the foot include the medial side of the first metatarsal base, the top of the first metatarsal base, the belly of the abductor hallucis muscle, the top of the medial navicular-cuneiform joint, the talocalcaneal joint, the deltoid ligament, and the medial malleolus.

[0006] In step 1, the test points in the forefoot region include the top of the first distal phalanx, the top of the second distal phalanx, the top of the third distal phalanx, the top of the fourth distal phalanx, the top of the fifth distal phalanx, the medial side of the first metatarsophalangeal joint, the top of the first metatarsophalangeal joint, the top of the second metatarsophalangeal joint, the top of the third metatarsophalangeal joint, the top of the fourth metatarsophalangeal joint, the top of the fifth metatarsophalangeal joint, and the lateral side of the fifth metatarsophalangeal joint.

[0007] In step 1, the dorsolateral region of the foot includes the top of the base of the second metatarsal bone, the top of the base of the third metatarsal bone, the top of the base of the fourth metatarsal bone, the top of the intermediate navicular-cuneiform joint, the top of the lateral navicular-cuneiform joint, and the head of the talus.

[0008] In step 1, the posterior foot region includes the lateral calcaneus, the medial calcaneus, the posterior tibial depression, the heel opening, the posterior fibular depression, and the calcaneal tuberosity.

[0009] In step 1, the lateral region of the foot includes the top of the base of the fifth metatarsal bone, the lateral side of the base of the fifth metatarsal bone, the top of the calcaneocuboid joint, the lateral side of the calcaneocuboid joint, the middle of the lateral side of the extensor retinaculum, and the lateral malleolus.

[0010] In step 4, the pressure threshold measured in the medial region of the foot is 4~9 N, corresponding to the use of a weft-knitted fabric with skeleton flyknit or supportive knitting in the upper material; the pressure threshold in the forefoot region is 2~7 N, corresponding to the use of a weft-knitted fabric with high elasticity yarn or high F number in the upper material; the pressure threshold in the instep region is 3~8 N, corresponding to the use of a weft-knitted fabric with flyknit sock-like upper material; the pressure threshold in the heel region is 5~12 N, corresponding to the use of a woven or warp-knitted fabric with a combination of dense weave and rigid support in the upper material; and the pressure threshold in the lateral region of the foot is 5~10 N, corresponding to the use of a warp-knitted fabric with skeleton flyknit or supportive knitting in the upper material.

[0011] By adopting the above technical solution, the present invention provides a pressure-segmented upper design method. The foot is divided into the medial side, forefoot, instep, heel, and lateral side. Multiple test points are taken in each area, and the average pressure value of each test point in the same area is taken to obtain the pressure threshold of that area, that is, the maximum pressure that the upper can apply to the foot. When the pressure value is higher than this value, the foot will feel squeezed. Appropriate upper materials are selected according to the magnitude of this pressure value to make the foot more comfortable. A quantifiable evaluation system for upper comfort is established, which weakens subjective feelings and thus meets the runner's requirements for upper comfort. Attached Figure Description

[0012] Figure 1 A schematic diagram of test points in different areas of the foot; Figure 2 This is a schematic diagram showing the pressure thresholds of different areas of the foot and the materials used in the shoe upper. Detailed Implementation

[0013] To further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0014] Example A method for designing a pressure-splitting and zoned shoe upper includes the following steps: Step 1: First, divide the subject's foot into four sections: medial, forefoot, dorsum, posterior, and lateral. Take multiple test points in each section, such as... Figure 1 And as shown in Table 1; Step 2: The subject then sits down for the test, with their bare feet placed on the test table. The push-pull force gauge is used to slowly apply pressure to the test points in various areas of the foot. The subject's subjective pain is measured using the VAS pain scale. When the pain value reaches between 2 and 3, the pressure is stopped and the pressure value of the push-pull force gauge is recorded. The test is repeated multiple times and the average value is taken to obtain the pressure value of each test point. Step 3: Then, take the average pressure value of each test point in the same area of ​​the foot to obtain the pressure threshold of that area; Step 4: Finally, select the material of the upper according to the pressure threshold. Soft fabric is used for the foot area with a low pressure threshold, while a supportive fabric is used for the foot area with a high pressure threshold.

[0015] Table 1. Location of test points on the feet

[0016] Application examples Dozens of male and female subjects were selected. The basic information of their foot type is shown in Table 2. The pressure threshold of the subjects' feet was tested using the footwear design method with segmented pressure, and the pressure threshold was converted into a pressure intensity threshold. The results are shown in Tables 3 and 4.

[0017] Table 2 Basic information on the subjects' foot types

[0018] Table 3 Foot pressure thresholds of the subjects

[0019] Table 4 Foot pressure thresholds of the subjects

[0020] The data in Tables 3 and 4 show that: 1. In terms of zoning: The trends are consistent between the left and right feet. The pressure threshold is the lowest in the forefoot area and the highest in the heel area. The pressure thresholds of the dorsal and medial areas are not much different and are slightly lower than those of the lateral area. 2. Regarding the left and right feet: Overall, the pressure threshold of the right foot is greater than that of the left foot (some data show statistical differences). 3. Gender: The stress thresholds for each area were higher for men than for women (no statistical difference).

[0021] Selection of shoe upper: such as Figure 2 As shown, the upper material is selected based on the calculated pressure thresholds (pressure intensity thresholds) of different areas of the foot. The forefoot and heel areas are high-sensitivity areas for pain, so the upper for the forefoot area uses soft, high-elasticity yarn / high F-count weft-knitted fabric. The instep, medial, and lateral areas are medium-sensitivity areas for pain, so the upper for the instep area uses flyknit sock-like weft-knitted fabric. The upper for the medial area uses skeletal flyknit / supportive weft-knitted fabric. The upper for the lateral area uses skeletal flyknit / supportive warp-knitted fabric. The heel area is a low-sensitivity area for pain, so the upper for the heel area uses densely woven woven / warp-knitted fabric with rigid support.

[0022] The above embodiments and figures are not intended to limit the product form and style of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. A method for designing a shoe upper with pressure-splitting and partitioning, characterized in that: Includes the following steps: Step 1: First, divide the subject's foot into four regions: medial foot region, forefoot region, dorsum of the foot region, posterior foot region, and lateral foot region. Take multiple test points in each region. Step 2: Then, the subject is tested in a seated position with their bare feet placed on the test table. A push-pull force gauge is used to slowly apply pressure to the test points in various areas of the foot. When the subject feels pain in their foot, the pressure is stopped and the pressure value of the push-pull force gauge is recorded. The test is repeated multiple times and the average value is taken to obtain the pressure value of each test point. Step 3: Then, take the average pressure value of each test point in the same area of ​​the foot to obtain the pressure threshold of that area; Step 4: Finally, select the material of the upper according to the pressure threshold. Soft fabric is used for the foot area with a low pressure threshold, while a supportive fabric is used for the foot area with a high pressure threshold.

2. The method for designing a pressure-splitting and partitioned shoe upper according to claim 1, characterized in that: In step 1, the test points in the medial region of the foot include the medial side of the first metatarsal base, the top of the first metatarsal base, the belly of the abductor hallucis muscle, the top of the medial navicular-cuneiform joint, the talocalcaneal joint, the deltoid ligament, and the medial malleolus.

3. The method for designing a pressure-splitting and partitioned shoe upper according to claim 1, characterized in that: In step 1, the test points in the forefoot region include the top of the first distal phalanx, the top of the second distal phalanx, the top of the third distal phalanx, the top of the fourth distal phalanx, the top of the fifth distal phalanx, the medial side of the first metatarsophalangeal joint, the top of the first metatarsophalangeal joint, the top of the second metatarsophalangeal joint, the top of the third metatarsophalangeal joint, the top of the fourth metatarsophalangeal joint, the top of the fifth metatarsophalangeal joint, and the lateral side of the fifth metatarsophalangeal joint.

4. The method for designing a pressure-splitting and partitioned shoe upper according to claim 1, characterized in that: In step 1, the dorsolateral region of the foot includes the top of the base of the second metatarsal bone, the top of the base of the third metatarsal bone, the top of the base of the fourth metatarsal bone, the top of the intermediate navicular-cuneiform joint, the top of the lateral navicular-cuneiform joint, and the head of the talus.

5. The method for designing a pressure-splitting and partitioned shoe upper according to claim 1, characterized in that: In step 1, the posterior foot region includes the lateral calcaneus, the medial calcaneus, the posterior tibial depression, the heel opening, the posterior fibular depression, and the calcaneal tuberosity.

6. The method for designing a pressure-splitting and partitioned shoe upper according to claim 1, characterized in that: In step 1, the lateral region of the foot includes the top of the base of the fifth metatarsal bone, the lateral side of the base of the fifth metatarsal bone, the top of the calcaneocuboid joint, the lateral side of the calcaneocuboid joint, the middle of the lateral side of the extensor retinaculum, and the lateral malleolus.

7. The method for designing a pressure-splitting and partitioned shoe upper according to claim 1, characterized in that: In step 4, the pressure threshold measured in the medial region of the foot is 4~9 N, corresponding to the use of a weft-knitted fabric with skeleton flyknit or supportive knitting in the upper material; the pressure threshold in the forefoot region is 2~7 N, corresponding to the use of a weft-knitted fabric with high elasticity yarn or high F number in the upper material; the pressure threshold in the instep region is 3~8 N, corresponding to the use of a weft-knitted fabric with flyknit sock-like upper material; the pressure threshold in the heel region is 5~12 N, corresponding to the use of a woven or warp-knitted fabric with a combination of dense weave and rigid support in the upper material; and the pressure threshold in the lateral region of the foot is 5~10 N, corresponding to the use of a warp-knitted fabric with skeleton flyknit or supportive knitting in the upper material.

Images