Novel shoe tree capable of improving comfort

Abstract

The utility model discloses a novel shoe tree capable of improving comfort, and relates to the technical field of shoe trees. The shoe tree comprises a shoe tree main body, wherein an intertoe bulge module, a metatarsal bulge module and a flank support module are respectively arranged at the bottom of the shoe tree main body. The toe protrusion module, the metatarsal bone protrusion module and the flank supporting module are accurately arranged at the bottom of the shoe tree body and correspond to the toe area, the hallux adductor area and the middle foot area respectively, and targeted supporting of different parts of the foot is achieved; the arch support design is constructed according to the formula of the relation between the arch index and the real scaphoid height to predict the arch height, the arch support design fits the human arch physiological curve and effectively disperses the foot pressure, the concave design of the heel fits the shape of the heel, the stability and comfort of the heel are improved, and the design fitting the foot physiological structure in all directions has the advantages that the design is simple, and the design is convenient and fast. The burden of each part of the foot during walking can be obviously relieved, and the fatigue feeling is not easily generated after long-time wearing.

Description

Technical Field

[0001] This utility model belongs to the field of shoe last technology, and in particular relates to a new type of shoe last that improves comfort. Background Technology

[0002] A shoe last is a mold used to shape a shoe, also called a shoe tree. The shoe last not only determines the shoe's shape and style but also its fit and ability to protect the foot. Shoe lasts come in three types: wood, plastic, and metal, and their width is determined by the circumference of the foot. Modern shoe last design involves multiple disciplines and demands a high level of craftsmanship and experience.

[0003] Traditional shoe last design relies mainly on experience and lacks precise consideration of individual foot shape and plantar pressure characteristics, resulting in differences in the comfort and fit of footwear products. In order to improve the personalization and comfort of footwear products, an ergonomic shoe last based on foot shape and plantar pressure characteristics is needed to improve the comfort and fit of footwear.

[0004] To address these issues, we provide a novel shoe last that enhances comfort. Utility Model Content

[0005] The purpose of this invention is to provide a novel shoe last that improves comfort. By combining the intertoe protrusion module, the metatarsal protrusion module, and the lumbar support module, it solves the problem that existing shoe lasts lack precise consideration of individual foot shape and sole pressure characteristics, resulting in differences in the comfort and fit of footwear products.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a novel shoe last that improves comfort, comprising a shoe last body. The bottom of the shoe last body is provided with an intertoe protrusion module, a metatarsal protrusion module, and a lumbar support module. The intertoe protrusion module is located at the toe area, the metatarsal protrusion module is located at the adductor hallucis muscle area, and the lumbar support module is located at the midfoot area. The bottom of the shoe last body is designed for arch support, and the heel area of ​​the shoe last body is designed with an inward concave shape.

[0008] The present invention is further configured such that the two ends of the interdigital protrusion module are respectively designed at the halfway point of the fifth toe and the outer protrusion of the fifth metatarsal bone, and at the halfway point of the first toe and the outer protrusion of the first metatarsal bone, and the whole is designed in the shape of a "√". The positions of the two ends of the interdigital protrusion module are clearly defined. The "√" design can accurately fit the natural curvature of the toes, avoid the toes squeezing each other, further improve the comfort of the toes, and help maintain the flexibility of the toes when walking.

[0009] The present invention is further configured such that the most prominent point of the interdigital protrusion module is located between the thumb and the first metatarsal bone, and the depth is 1-3mm. Determining the position and depth of the most prominent point of the interdigital protrusion module provides just the right support between the thumb and the first metatarsal bone, ensuring comfort without affecting normal foot movement, and optimizing the local support effect.

[0010] The present invention is further configured such that the depth of the anterior end point of the metatarsal protrusion module is 214.5 mm and the depth of the posterior end point of the metatarsal protrusion module is 165.1 mm. By providing the depth of the anterior end point and the posterior end point of the metatarsal protrusion module, the support force of the module on the adductor hallucis muscle is precisely controlled, so that it can better adapt to the physiological characteristics of the metatarsal region and enhance the wearing comfort.

[0011] The present invention is further configured such that the metatarsal protrusion module covers the second, third, and fourth phalanges, indicating that the metatarsal protrusion module covers the second, third, and fourth phalanges, thereby expanding the effective support range for the metatarsal region, evenly distributing the pressure in this area, and reducing the discomfort caused by local pressure concentration.

[0012] The present invention is further configured such that the depth of the front end of the lumbar support module is 165.1 mm and the depth of the rear end is 52 mm. By clearly defining the depth of the front and rear ends of the lumbar support module, appropriate support strength is provided for the midfoot, which helps to maintain the stability of the midfoot and reduce fatigue in the midfoot during walking.

[0013] The present invention is further configured such that the bottom arch support design of the shoe last body uses the relationship formula between the arch index and the actual navicular bone height to predict the arch height and design the arch support structure. This means that the arch support design is made more scientific and accurate, and can better adapt to people with different arch types.

[0014] This invention further specifies that the relationship between the arch index and the actual navicular bone height is y = -80.75x + 59, and the relationship between the arch index and the standard navicular bone height is y = -0.33075x + 0.233. It provides specific formulas for the relationships between the arch index and the actual navicular bone height, and between the arch index and the standard navicular bone height. This provides a quantitative basis for the design of the arch support structure, facilitating precise adjustment of the arch support structure and improving the fit of the shoe last to people with different arch heights.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model precisely sets intertoe protrusion modules, metatarsal protrusion modules, and lumbar support modules at the bottom of the shoe last body, corresponding to the toes, adductor hallucis muscle, and midfoot area, respectively, to achieve targeted support for different parts of the foot. The arch support design is constructed based on the relationship formula between the arch index and the actual navicular bone height to predict the arch height, conforming to the physiological curve of the human foot arch and effectively dispersing foot pressure. The concave design of the heel conforms to the shape of the heel, improving the stability and comfort of the heel. This all-round design that conforms to the physiological structure of the foot can significantly reduce the burden on various parts of the foot when walking, and is not easy to cause fatigue even after wearing for a long time.

[0017] 2. The synergistic effect of the various modules of this utility model provides the foot with good wrapping and support inside the shoe, effectively improving the fit and comfort of the shoe. The reasonable support distribution helps to correct incorrect walking posture and reduce the risk of foot diseases caused by uneven pressure on the feet. Whether for daily walking, sports or standing for a long time, this shoe last can provide users with a comfortable and healthy wearing experience, meet people's needs for comfortable footwear products, and play a positive role in protecting foot health. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 A three-dimensional diagram of a new type of shoe last designed to improve comfort.

[0020] Figure 2 This is a schematic diagram of the bottom of a new type of shoe last designed to improve comfort.

[0021] Figure 3 This is a schematic diagram of a new type of shoe last that improves comfort by wrapping the heel area with the shoe.

[0022] In the attached diagram: 1. Main body of the shoe last; 11. Intertoe protrusion module; 12. Metatarsal protrusion module; 13. Waist support module. Detailed Implementation

[0023] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1

[0025] Please see Figure 1-3This utility model is a novel shoe last that improves comfort. It includes a shoe last body 1. The bottom of the shoe last body 1 is provided with an intertoe protrusion module 11, a metatarsal protrusion module 12 and a lumbar support module 13. The intertoe protrusion module 11 is located at the toe area, the metatarsal protrusion module 12 is located at the adductor hallucis muscle area, and the lumbar support module 13 is located at the midfoot area. The bottom of the shoe last body 1 is designed for arch support, and the heel of the shoe last body 1 is designed to be concave.

[0026] Specifically: The length of each part of the shoe last is based on the baseline foot length and the regularity of each part - back tolerance. The width of each part of the shoe last is as follows: the width of the inner section of the big toe = the width of the big toe outline - the distance of the big toe edge × 5%; the width of the outer section of the little toe = the width of the little toe outline - the distance of the little toe edge × 35%; the basic width = the straight width of the metatarsophalangeal joint (base width) × 90%; the full width of the heel = the full length of the heel - the distance of the inner edge of the heel × 45% - the distance of the outer edge of the heel × 40%. The basic foot shape is calculated based on the standard foot mold data of male 250 foot shape (10 people).

[0027] Example 2

[0028] Please see Figure 1-3 Based on Embodiment 1, the two ends of the interdigital protrusion module 11 are respectively designed at the midpoint of the external protrusion of the fifth toe and the fifth metatarsal bone, and at the midpoint of the external protrusion of the first toe and the first metatarsal bone, forming an overall "√" design. The most prominent point of the interdigital protrusion module 11 is located between the thumb and the first metatarsal bone, with a depth of 1-3 mm. The anterior end of the metatarsal protrusion module 12 has a depth of 214.5 mm, and the posterior end of the metatarsal protrusion module 12 has a depth of 165.1 mm. 12 covers the second, third, and fourth metatarsal bones. The front end of the lumbar support module 13 has a depth of 165.1 mm, and the rear end has a depth of 52 mm. The bottom arch support design of the shoe last body 1 uses the relationship formula between the arch index and the actual navicular bone height to predict the arch height and design the arch support structure. The relationship between the arch index and the actual navicular bone height is y = -80.75x + 59, and the relationship between the arch index and the standard navicular bone height is y = -0.33075x + 0.233.

[0029] Specifically: The positions of the two ends of the interdigital protrusion module 11 are clearly defined, with a "√" design that precisely conforms to the natural curvature of the toes, preventing squeezing between them and further improving comfort in the toe area. It also helps maintain toe flexibility during walking. The position and depth of the most prominent point of the interdigital protrusion module 11 are determined, providing just the right amount of support between the big toe and the first metatarsal bone. While ensuring comfort, it does not affect normal foot movement, optimizing the local support effect. The depths of the front and rear ends of the metatarsal protrusion module 12 are given, precisely controlling the support force of this module on the adductor hallucis muscle area, allowing it to better adapt to the physiological characteristics of the metatarsal region and enhance wearing comfort. It is indicated that the metatarsal protrusion module 12 covers the second, third, and fourth phalanges, expanding the antimetatarsal area. The effective support range of the bone region evenly distributes pressure in this area, reducing discomfort caused by local pressure concentration. The depth of the front and rear ends of the lumbar support module 13 is clearly defined to provide appropriate support strength for the midfoot, which helps maintain the stability of the midfoot and reduces fatigue in the midfoot during walking. It explains that the arch support structure is designed using the relationship formula between the arch index and the actual navicular bone height, making the arch support design more scientific and precise, and better adaptable to people with different arch types. Specific relationship formulas between the arch index and the actual navicular bone height, and between the arch index and the standard navicular bone height, are given, providing a quantitative basis for the design of the arch support structure, facilitating precise adjustment of the arch support structure, and improving the adaptability of the shoe last to people with different arch heights.

[0030] The working principle of this utility model is as follows: By precisely setting the interdigital protrusion module 11, metatarsal protrusion module 12 and lumbar support module 13 at the bottom of the shoe last body 1, corresponding to the toes, adductor hallucis muscle and midfoot area respectively, targeted support is achieved for different parts of the foot. The arch support design is constructed based on the relationship formula between arch index and actual navicular bone height to predict arch height, conforming to the physiological curve of the human foot arch and effectively dispersing foot pressure. The concave design of the heel conforms to the shape of the heel, improving the stability and comfort of the heel. This all-round design that conforms to the physiological structure of the foot can significantly reduce the burden on various parts of the foot when walking, and is not easy to cause fatigue even after long-term wear.

[0031] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A new type of comfort enhancing last comprising a last body (1), characterized in that: The bottom of the shoe last body (1) is provided with an interdigital protrusion module (11), a metatarsal protrusion module (12), and a lumbar support module (13); The interdigital protrusion module (11) is located in the toe area, the metatarsal protrusion module (12) is located in the adductor hallucis muscle area, and the lumbar support module (13) is located in the middle of the foot. The bottom of the shoe last body (1) is designed for arch support, and the heel of the shoe last body (1) is designed to be concave.

2. A novel comfort enhancing last according to claim 1, characterized in that: The two ends of the interphalangeal protrusion module (11) are respectively designed at the halfway point of the fifth toe and the outer protrusion of the fifth metatarsal bone and the halfway point of the first toe and the outer protrusion of the first metatarsal bone, and the whole is designed in the shape of "√".

3. A novel comfort enhancing last according to claim 2, characterized in that: The most prominent point of the interdigital protrusion module (11) is located between the thumb and the first metatarsal bone, and its depth is 1-3 mm.

4. A novel comfort enhancing last according to claim 1, characterized in that: The depth of the anterior end of the metatarsal protrusion module (12) is 214.5 mm, and the depth of the posterior end of the metatarsal protrusion module (12) is 165.1 mm.

5. A novel comfort enhancing last as claimed in claim 1, wherein: The metatarsal protrusion module (12) covers the second, third, and fourth phalangeal bones.

6. A novel comfort enhancing last according to claim 1, characterized in that: The depth of the front end of the lumbar support module (13) is 165.1 mm, and the depth of the rear end is 52 mm.

7. A novel comfort enhancing last according to claim 1, characterized in that: The bottom arch support design of the shoe last body (1) uses the relationship formula between the arch index and the actual navicular bone height to predict the arch height and design the arch support structure.

8. A novel comfort-enhancing last according to claim 7, characterized in that: The relationship between the arch index and the actual scaphoid height is y = -80.75x + 59, and the relationship between the arch index and the standard scaphoid height is y = -0.33075x + 0.233.

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