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The relationship between the width of the foot christian louboutin heels

and the width of the shoe last How to determine the width of the shoe

Designing a shoe last must understand the louboutin sale relationship between the width of the foot and the width of the last.

The width of the foot is increased or decreased as the size of the foot circumference changes, and the same is true on the shoe last for ease of design. Determine the width of the shoe toe and crooked parts, and consider the type, use, heel height and other factors. The width of the heavy shoe should be greater than that of the light shoe. The width of the shoe shoe with the heel should be less than that of the shoe. The width of the shoe last, for example, according to measuring the heel width of the heel with a heat height of 25 mm, is reduced by 0.55 mm compared to the non-raised floor, and is reduced by 1.15 mm if the socks are measured and compared. For a too wide toe area, it is easy to create a palate to rest, resulting in a lateral flat foot.

Footprints on the footprint outline range, in fact, marks the width of the contours of the human body's foot contour, in which the footprint is the contour of the palm of the foot part of the contour range, the general shoe toe and crooked heart width is smaller than the foot type Contour, large footprint footprints. In order to determine a suitable width dimension, footprint analysis calculations and wear comparisons were performed, and the contour design of the shoe-like width was observed using the coincident foot contour of the middle foot group.

The full width relationship is derived from the shoe last size series. Since the first toe width is equal to the full width of the toe, the outer portion of the first toe is equal to the outer portion of the fifth toe. Examples of the use of the full-width relationship are as follows:

Men's leather shoes, medium size (No. 25), medium-sized pork (No. 4), full width = (2.2 脳 25) + (2.2 脳 4) + 30.2 = 90 mm

Women's leather shoes, medium size (No. 23), medium-sized pork (No. 4), full width = (2.2 脳 23) + (2.2 脳 4) + 22.6 = 82mm

Determination of basic width

The determination of the basic width of the 妤?type is an important part of the shoe last design. It is related to whether the shoes are comfortable to wear, whether the appearance is beautiful, whether it is to save raw materials, the change of shoes and other important factors. The width is too wide and the shoes must collapse. The feet move back and forth inside and out of the shoe, deforming the shoes and making them uncomfortable to wear. There are many joint bones from the first to the fifth metatarsophalangeal toe of the human foot, and the muscles are less, and the compressibility is poor. If the basic width is too narrow, the part will bear the weight of the human body and the load during the exercise will cause the feet to be clipped, and the wearing will be obviously uncomfortable. , Distortion and early breakage of shoes.

The determination of the basic width of 妤?shall be handled separately for different varieties and different processes. For example, men's suede shoes, due to the help of the soft surface, the leather is elastic, wear-resisting, the body around the body can be arranged more full, the body is generally greater than the basic width. The basic width can be narrower than double shoes. The christian louboutin shoes sale average size of the No. 25 (type 3) shoe is 89.3mm, and that of the cloth is 90.6mm. Because the metatarsophalangeal joints of humans are relatively smooth and plump, when the basic width of the contour of the 25th (type III) foot is 99.3mm, and the basic width of the footprint is only 86.06mm, the difference between them is 13.24mm. What is the width of the foot for the basic width of the shoe last? Through trial and error trials, it is known that the former is too wide and wastes material and is not suitable for actual wear; the latter is too narrow to wear. Therefore, the reasonable width of the shoe last can only be larger than the width of the footprint and less than the width of the outline, and at the same time it must be combined with louboutin shoes the actual varieties, styles and technical requirements. Through the study of the law of the foot, the basic width defined by the shoe number of China combined with the actual measurement has important reference value.