The design of the working sole should not be too bulky
1. For winter shoes, a slightly thicker sole is designed to help isolate the air-conditioning on the ground and maintain the normal temperature of the feet. Too thick will make the feet feel poor on the ground, and tend to deviate the center of gravity, resulting in crippled feet. The design of the bottom pattern affects the anti-skid performance of the finished shoe. The bottom pattern design should resist horizontal and vertical slippage. The anti-slip effect is good, the friction between the sole and the ground is increased when walking, and people can walk easily with the help of the ground reaction force. On the contrary, it is difficult for people to walk, and it is easy to hurt their feet and body. The special structural design enables the air in the shoes to be effectively replaced during exercise and improves comfort.
2. A reasonably designed heel can make the weight of the human body more reasonably distributed on the supporting points of each part of the foot, enhance the stability of the human body, and improve the elasticity of the arch of the foot. The height, size and shape of the heel affect the comfort of the finished shoe. The height of the heel depends on the height of the last stilt. When designing or selecting, pay attention to the coordination of the two. The lower edge of the calcaneus is the main stress point of the human center of gravity. It is in the center of the heel of the bottom of the foot. Therefore, the heel seat surface, the heel post and the heel surface must penetrate and contain the vertical line between the lower edge of the calcaneus and the ground. force. The size of the heel seat affects the fastness of the heel assembly. The heel seat surface is large, and the contact area with the heel part of the sole is large, and it is not easy to shake when wearing; the size of the heel surface affects the ground area and stabilizes the center of gravity. The heel shape with small width at the bottom makes it difficult for people to grasp the balance during exercise; the heel shape with width but no thickness looks thin and elegant from the outside. If the assembly position is rearward, it is easy to tilt the heel back when walking, which makes people have The feeling of frustration.
3. When the inner toe cap is designed, its length cannot exceed the bending part of the foot, otherwise, the bending of the foot will be limited, and there will be hidden dangers of jamming and grinding.
4. Due to the physiological characteristics of the feet, the distribution of sweat glands in human feet is uneven. The center of the foot and the metatarsophalangeal joints have the highest density, and the heel and instep should be less dense. Therefore, pay attention to the breathable and sweat-absorbing design of the insole, insole and inner lining of the forefoot. The insole design increases softness and breathability. The midsole design is added to the insole of sports shoes, and elastic materials are used to relieve the impact of the foot and the ground.