Safety shoes are high-tech and high-value-added footwear products. The production process of safety shoes has high requirements for raw materials, auxiliary materials, chemical materials, and mechanical equipment.

The design of the upper is based on the physical characteristics of the foot, the physical structure of the lower extremities, and the movement function, materials, and processes. The design transforms the design into a physical object. Through the design of the sample, the design can be smoothly transitioned to the product processing stage so that the design can be produced in accordance with the design. The product.

1. When designing full shoes, the length of the front face of the shoe, the position control point of the mouth, should be controlled on the face, because the bend point of the foot of the foot becomes thicker when the body squats or the foot is bent. The length of the front face is generally not more than the position of the port door to facilitate the movement of the feet and prevent the shoes, tongues, shoes and ears from grinding and stumping the feet.
2. For shoes with short front face, the design of the mid-lumbar back-to-back area should be added with the design of the foot, such as straps or small packages, and the design of holding the legs and belts so that the wearer can walk without difficulty. Common in women sandals design, the front of the narrow strip or short front gang, when walking can not lift their feet, dragging the heel to go, very laborious, this time should be added in the back with the foot design.
3. In addition to help high in the middle of the seams high waist, boots, usually short shoes to help control the height of the back seam. In particular, leather shoes, shoes because of the main heel, too high after the gang will cause grinding feet, stuck feet. Too low, their shoes do not follow the foot. Its height is controlled at the point along the heel of the heel bone, and the range can not be too large. The reasonable size can be set according to experience and process methods.
4. After the upper and lower shoes are designed for the general low shoes, the height of the upper and the lower shins of the feet is to be controlled based on the theoretical height. The height of the lower edge of the humerus is based on the foot type. Can only be lower than this value but not high. Otherwise, the cheekbones will scratch the skin of the foot. And note that the internal and external sacrum height is not the same, the internal sacrum is higher than the external sacrum, the design can be considered to help 2-3mm higher than the external Huai Bang.
5. The door entrance door position control is set at the bending position in the instep movement. Because of the deep and narrow mouth door design, it is easy to tear and wear off.
6. If the control position of the toe control point or the sandal strap is designed at the tip of the little toe, if the control is improper, it will cause the toe to suffer head-on collision, exposure and other problems. Some women's little toes are drilled from the band gap of the sandals. The little toe is vulnerable to external injuries and uncomfortable while walking.
7. The heel control point generally controls the position of the posts on both sides of the sandals to improve the carrying ability of the upper on the heel.

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