RU2542552C2 - Children's prophylactic footwear design - Google Patents

Abstract

FIELD: personal use articles.

SUBSTANCE: invention relates to design of children's prophylactic footwear containing a volumetric upper with a rigid quarter and a stitched-in insole made of a flexible material, a thin insert insole made of a foamed material with a top contact layer made of leather, a moulded sole made of compact thermoplastic material; the sole non-walking part is made with uniform layout of the external and the internal arches in the side part with the apex located in the area of calcaneocuboid juncture with section 0.36D while in the heel part under the calcaneal tuber in section 0.18D a depression and an impact damper are made in the form of a series of concentric round hollows.

EFFECT: ensuring optimal distribution of pressure across the footstep and impact dampening during walking, reduction of weight and improvement of footwear flexibility in the fascicular part.

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Description

The invention relates to the shoe industry and orthopedic devices, namely to the design of children's preventive shoes, and can be applied in the manufacture of shoes and prosthetic and orthopedic products.

A known design of sports rubber-textile shoes made by molding or injection molding, including the upper, back, cushioned insole, set-in insole, grooved rubber sole, etc. For children in such shoes, a supinated or profiled insulated insole, as well as a flat insole with profiled inner side of the sole (1).

These shoes are intended for sports and general physical training and do not solve the problem of preventing static deformations of the feet in children.

Known insert insole for children's preventive shoes containing the upper, intermediate and lower layers, the upper layer is made of leather, the intermediate layer is formed of a foamed thermoplastic material formed during socks, and the lower frame layer is made of dense thermoplastic material, while the intermediate layer is made with deepening in the calcaneal part under the calcaneal tubercle in the section. 0.18D and with a uniform layout of the outer and inner arches in the gel part with the highest point in the heel-cuboid articulation in section. 0.36 D, and on the upper layer of the insole in the forefoot there is a size scale and marking lines in the form of color zones corresponding to the acceptable boundaries of the position of the toes of the foot in the shoe and allowing during the fitting process to establish the fit of the insole removed from the shoe to judge the conformity of the insole length and, accordingly, the size of the shoes along the length of the foot (2).

A disadvantage of the known technical solution is that the insole is a plug-in element inserted into the finished shoe, which leads to a distortion of the shape and size of the shoe interior space of the shoe, an increase in its mass and a decrease in flexibility.

A knot of the main insole for children's preventive shoes is known, containing the upper and lower layers, the upper layer being made of a foamed thermoplastic material being molded during socks — an ethylene-vinyl acetate copolymer with a density of 0.35-0.40 g / cm ³ and a hardness of 40- 50 conv. along Shore, and the bottom layer is made of thick cardboard, while the top layer is made with a recess in the heel part under the heel of the calcaneus in the section. 0,18D, and in the gelenium part with a uniform calculation of the outer and inner arches with the highest point in the heel-cuboid joint in the section. 0.36 D (3).

A disadvantage of the known technical solution is that the node of the main insole makes the shoes heavier, reduces its flexibility, makes it material- and time-consuming, and also not technologically advanced, because, in the case of using the node of the main insole, the upper part of the shoe is molded in a tight and long way during a series of consecutive operations requiring highly skilled performers and the use of expensive equipment.

An object of the invention is to simplify the design, reduce weight and increase the flexibility of shoes in the beam part, reduce material and labor costs, increase the manufacturability of shoes while maintaining the benefits of a profiled trace, i.e. ensuring the correct installation of the foot in the shoe and creating conditions for the formation of its arches, ensuring the optimal distribution of pressure on the plantar surface of the foot, as well as ensuring shock absorption during walking.

The problem is solved as follows.

DESIGN OF CHILDREN'S PREVENTIVE FOOTWEAR, containing a bulk blank of the top with a set-in insole of flexible material, a thin insert insole of foam material with an upper contact layer of leather, a molded outsole of dense thermoplastic material, while the non-walking surface of the sole is made with uniform laying of the outer and inner arches gelennoy part with the highest point in the heel-cuboid articulation in section. 0.36 D, and in the calcaneal part under the calcaneal tubercle in the section. 0,18D made a deepening and shock absorber shock loads in the form of a series of concentric circular voids.

Drawings 1 to 7 illustrate the proposed design of children's preventive shoes.

Figure 1 shows a section of a shoe.

Figure 2 shows the sole, a top view of a moody surface.

Figure 3 shows the longitudinal-axial section of the sole.

Figure 4-7 shows the transverse vertical sections of the sole (0.1D; 0.18D; 0.32D; 0.46D, respectively, where D is the length of the foot).

DESIGN OF CHILDREN'S PREVENTIVE FOOTWEAR (Figure 1) consists of a top 1, a set-in insole of flexible material 2, a thin insert insole 3 of foam material with an upper contact layer of leather, molded sole 4 of dense thermoplastic material. In order to ensure the correct installation of the foot and the creation of conditions for the formation of its arches on the non-walking surface of the sole in the heel part under the heel of the calcaneus in the section. 0,18D provides a recess, and in the gelennoy part a uniform layout of the outer and inner arches with the highest point in the heel-cuboid joint, section is set. 0.36D, contributing to the reversal of the anterior edge of the calcaneus in the sagittal plane. The height of the calculation for schoolchildren is 5-7 mm. Completed in sec. 0,18D soles a number of concentric circular voids provides shock absorption on the foot during the heel push. The insole 3, deforming under load, provides a decrease in pressure concentration under the bony protrusions of the foot: the calcaneal tuber and the metatarsal heads.

The design and materials of the shoe provide an optimal distribution of pressure along the footprint of the shoe and shock absorption during walking, contribute to weight reduction and flexibility of the shoe in the beam part, to increase manufacturability and reduce the complexity of manufacturing shoes. The anatomical shape of the upper non-walking surface of the molded sole together with the rigid back, tightly covering the heel, ensures the correct installation of the foot and creates the conditions for the formation of its arches, thereby preventing the occurrence of static deformations of the feet in children.

Information Sources Used

1. GOST 9155-88. Sports shoes, rubber and rubber-textile. - M.: 2002.

2. Patent for invention No. 2414831, class. A43B 17/00, 04/15/2010.

3. Patent for the invention No. 2407489, class. A61F 5/14, 05/27/2009.

Claims (1)

The design of children's preventive shoes contains a volume blank of the upper with a rigid back and set-in insole made of flexible material, a thin insulated insole made of foam material with an upper contact layer of leather, a molded sole made of dense thermoplastic material, while the non-walking surface of the sole is made with uniform laying of the outer and inner arches in the gelenic part with the highest point in the heel-cuboid articulation in section. 0.36 D, and in the heel under the tuber of the calcaneus in the section. 0.18 D made the deepening and shock absorber of shock loads in the form of a series of concentric circular voids.

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