BG105934A - Shoe construction and method of making same - Google Patents

Abstract

A foot construction comprising a rigid molded device (116) comprising a heel cup (118) and an automatically shaped arch appliance (120) extending forwardly from the heel cup to just proximal to the metatarsal heads, causes the foot of the wearer to assume an anatomically correct position in the shoe, provides torsional stability and contributes to shoe structure integrity. 10 claims, 7 figures

Description

SHOES CONSTRUCTION AND MANUFACTURING METHOD

Technical field

The invention relates to the construction of a shoe and the method of its production, intended for walking and other active wear. .

BACKGROUND OF THE INVENTION

Electric shoes are considered to be extremely uncomfortable for daily wear, with 20% of women wearing such shoes having been shown to have foot pain due to the shoes, with the majority of these women starting to feel pain after only 4 hours of walking. with high current. This discomfort is primarily due to the slipping of the step forward in the shoe and the pinching of the toe in the shoe bomb.

The foot is composed of the posterior bones (known as the tarsus), including the talus and calcaneus, the arch of the foot comprising the wedge-shaped bone and the metatarsus (the bones connecting the tarsus with the phalanges of the toes), as well as the phalanges of the toes. The posterior bones rest on the heel cup, while the arch of the foot rises above the reinforced mid-narrower portion of the intermediate sole and reaches the foot cushion where the metatarsus joins the base of the phalanges. The foot cushion, which is below the heads of the metatarsal bones forming the metatarsus, and the phalanges rest on the front of the known shoe in the toe area.

The famous shoe has a height of about 5 cm and meets the size 7 in accordance with US standards for women's shoes. The shoe has a base plane from which to measure the height of the current a 'to the base of the heel. The base of the heel is inclined at an angle of about 12-15 ° to the base plane. This angle is marked with an "x". Reinforced average

a narrow part of the intermediate sole is inclined downwards and forwards from the base of the heel at an angle of Ύ ”which is approximately 30 ° to the base plane. In the toe area, the toe of the foot is virtually parallel to the ground plane, but it can tilt up and forward when tilting up and down at the top of the shoe at an angle of z, which is 2 - 3 ° relative to the base plane.

As you can see, the classic classic high-heeled shoe maintains the foot mainly on an inclined plane, on which the foot slides forward to the shoe of the shoe when walking or standing in one place. This leads to pressure in the soft part of the foot, pressure on the toes, which often creates a burning sensation in that part of the foot, and also leads to fatigue and discomfort. Traditionally, shoes are made using one of the two main technologies - by pulling the top on the mold or by anchoring the sack to the sole. On retraction, the top is glued or sewn by machine to the intermediate and / or outer soles. When working with the sole, the upper is sewn or glued to a pre-shaped insert, which in turn connects to the sole and / or sole of the shoe. In order to be able to absorb the weight of the body without deforming the shoe, a steel plate made usually of metal, wood, cloth, artificial fabric or plastic is fastened or glued between the sole and the sole and the sole of the shoe. . Some shoe designs also have a patterned insole and / or some soft inner insole with a soft pad beneath the foot. Although such soft underfoot placement may provide some initial relief, such soft pads reduce the biomechanical properties of the shoe and contribute little to stabilize the foot in an anatomically correct position.

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SUMMARY OF THE INVENTION

It is an object of the present invention to provide a shoe construction including a device for changing the heel angle of the heel relative to the ground plane. It will be able to be used for shoes with different heights, allowing the heel to be kept approximately parallel to the ground plane and to increase the heel height of the shoe, as is the case with formal ladies shoes.

It is another object of the invention to provide such a shoe construction that maintains the longitudinal axis of the step but permits flexibility in the orientation of the inclined axis. This construction will be particularly suitable for the design of, for example, golf shoes that will allow for flexibility in the player's rotation motion while preventing the foot's longitudinal arch from walking.

The objectives are achieved by a rigid shoe construction comprising a flexible mold layer above the outer soles and heels, characterized in that it also includes a rigid fixture comprising a cup-shaped recess and an anatomically shaped arch support extending forward from said bow proximal, i.e. to the place where the heads of the metatarsal bones begin, with the rigid fixture permanently attached to the layer as an integral part of the shoe, and fixing and stabilizing the heel inside the shoe while keeping the heel higher than the toes of the foot relative to the base plane, that the heel be kept approximately parallel to the ground plane.

In one embodiment of the shoe construction, the rigid fixture is made of ABS plastic (acrylic-nitrile butadiene-styrene copolymer).

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In another embodiment, the heel of the step is supported at an angle of 5-10 ° with respect to the base plane.

Preferably, the area of the rigid fixture below the median longitudinal arch of the step is tapered downward relative to the rest of the fixture so as to provide for raising or lowering of the arch of the step when walking.

In another embodiment of the shoe construction, the non-folding fixture is a piece-shaped structure.

In another embodiment of the shoe construction, the non-folding fixture is a machine-sewn construction of a single piece.

In another embodiment of the shoe construction, the non-folding attachment is secured by adherence to the mold layer (sole).

In another embodiment of the shoe construction, the non-folding fixture is mechanically attached to the mold layer (sole).

It is advisable for the device to have an area cut out below the distal end of the first metatarsal head of the step.

The objectives are also achieved by a method of making shoes, in which the upper and the sole (outer sole) are fixed on the layer of the mold (sole), characterized in that a permanently rigid fixture is attached to the upper side of the mold (sole). consisting of a cup-shaped recess and an anatomically shaped arch support, as an integral part of the shoe, so as to strengthen the sole from the heel forward exactly proximal to the heads of the metatarsal bones, the device being inserted before inserting the sole and / or outer sole of the shoe so as to ensure that the heel of the foot is locked and stabilized in the finished shoe and that the heel is higher than the toes relative to the base plane so that the heel of the wearer is maintained approximately parallel to the ground plane.

The advantages of the invention are that it is possible to vary the heel angle of the heel relative to the ground plane and to be flexible in orienting the longitudinal axis of the step. The application of the invention for constructing golf shoes provides that the area under the middle part of the longitudinal arch of the step be either tapered down or removed completely to allow for the raising or lowering of the arch of the step when twisting it, while the central part will retain its rigid construction to prevent longitudinal axis deflection. Placing the non-rigid device in the shoe prevents the foot from sliding forward and, consequently, pinching the toes at the top of the shoe, increasing the portion of body weight absorbed by the support plate for the heel by about 16%.

Explanation of the annexed drawings

Figure 1 shows a side elevation view of a partial cross-section of a shoe made according to one embodiment in accordance with the present invention;

2 shows the shoe of FIG. 1 disassembled;

FIG. 3 is a perspective cross-sectional view of the shoe of FIG. 1;

4 is a perspective view of an element of the shoe of FIG. 1;

Figure 5 is similar to FIG. 1, showing an alternative embodiment of the present invention;

Figure 6 is a cross-sectional view along the line 13-13 of the shoe of FIG. 5;

Figure 7 shows a side elevational view showing the position and support of the left foot when applying the present invention.

Examples of carrying out the invention

The main elements of the shoe made according to the present invention are shown in figures 1 to 4. The shoe includes a layer of mold / inner sole 100 which is cut from a non-expandable, retaining flexible material, such as gypsum, fiber, non-woven material or other The outer sole (the sole) 112 and the heel 114. Under the layer 100 next to the mold, the rigid fixture 116 is housed above the layer 100, in which a cup-shaped recess for the heel 118 is formed, and an anatomically shaped arch support 120, such as a rigid device 116 runs ahead of the cupped heel skive 118 and ends just behind the area of the head of the metatarsals.

The rigid fixture 116 is soldered and / or sewn to match the bottom of the foot and lock and stabilize the heel of the foot inside the shoe, tilting down after the cup-shaped recess 118, for example, about 5-10 °, depending on the height of the current so as to cause the foot to occupy an anatomically correct position in the shoe, leaving the heel of the foot approximately parallel to the ground plane. In this way, the support for the phalanx of the toes prevents the foot from sliding forward into the shoe. The attachment 116 is attached by adhesive and / or mechanical, for example by nailing, to the mold / inner sole 110.

The device 116 may be made of some lightweight, non-folding material compatible with the shoe construction. In this case, the soldered device 116 is cut from ABS plastic (acrylic

• Nitrile-butadiene-styrene copolymer), but it may also be made of other non-flexible plastic or of a multilayer material, such as plastic with artificial fibers or metal, for example, penoaluminum.

The device 116 has the dual purpose of fixing and stabilizing the foot inside the shoe so that the foot takes an anatomically correct position, providing stability against torsion, and serves to support the shoe itself from forward to the area of the head of the metatarsal bone so that to maintain the weight of the body. As a result, the need for a separate retaining plate may now be eliminated. Of course, when necessary, the shoe may also contain a separate plate. In addition, since the device 116 is an integral, integral part of the shoe, its exact location in the shoe and, accordingly, the location of the foot are fixed.

The construction of the shoe ends with an insole or insole 124 which is mounted on the soldered attachment 116, after which the upper of the shoe, generally referred to as 126. already comes in. The current 124 is secured by means of adhesive and / or mechanical fasteners according to known techniques, such as the upper 126 being fixed to the bottom of the inner sole 110 and to the outer sole (foot) 112 with nails, gluing, frame, sewing or combining these techniques using any of the known construction techniques is on shoes.

The invention provides opportunities for modification. For example, the outsole (sole) 112 and the heel 114 can be made together as one piece, as shown in FIG. 2. As can be seen from FIG. 5, the device 116 can also be successfully applied to low-heeled shoes or boots. In this case, the device 116 tilts only slightly downwards from the cup-shaped

a recess for the heel 118 so as to adjust to the low height of the current and the heel to maintain its almost parallel position with respect to the ground plane. It is also possible to adapt the device 116 to various specific use cases, for example in golf shoes, to provide the necessary degree of stability against torsion of the foot, and to maintain the foot in an anatomically correct position inside the shoe without the structural compactness of the shoe is disturbed. For example, when it comes to golf shoes, the zone 132, located below the median longitudinal arch of the step, may be thinned to allow rotational motion while the central portion will retain its rigid, rigid structure to protect by breaking the longitudinal axis. The device 116 can be used successfully in men's, children's and women's casual, casual, walking and running shoes, as well as in the manufacture of sandals and other active wear shoes that require torsional stability.

The foregoing embodiments are illustrative only and may be modified in various ways without departing from the scope of protection set forth in the claims. Thus, for example, the non-flexing device 116 in the region 140 (FIG. 4), located at its front towards the metatarsal bone region, may be tapered, as shown by the dashed line, with the width of the device 116 in this region becoming about 1/3 of normal width.

Claims (10)

CLAIMS 1. Construction of a shoe comprising a flexible layer (110) of the mold above the outer sole (112) and a current (114), characterized in that it also includes a rigid device (116) constituting a cup-shaped recess (118) and anatomically shaped arch support (120) extending forward from said cup-shaped recess proximal, i.e. to the point where the heads of the metatarsal bones begin, with the rigid fixture (116) permanently attached to the layer (110) as an integral part of the shoe and fixing and stabilizing the heel inside the shoe while maintaining the heel higher than the toes the foot relative to the ground plane so that the heel is kept approximately parallel to the ground plane. Shoe construction according to claim 1, characterized in that the rigid fixture (116) is made of ABS plastic. A shoe construction according to claim 1, characterized in that the heel of the step is supported at an angle of 5-10 ° with respect to the base plane. Shoe construction according to claim 1, characterized in that the area of the rigid fixture (116) located below the median longitudinal arch of the step is tapered downward relative to the rest of the fixture so as to provide lifting or lowering of the arch. on the foot when walking. A shoe construction according to claim 1, characterized in that the non-folding device (116) is a whole piece structure. Shoe construction according to claim 1, characterized in that the non-folding device (116) is a structure sewn to a machine in one piece. Shoe construction according to claim 1, characterized in that the non-folding device (116) is secured by adherence to the mold (110) of the mold (sole). Shoe construction according to claim 1, characterized in that the non-folding attachment (116) is mechanically secured to the mold (110) of the mold (sole). 9. A shoe construction according to claim 1, characterized in that an area (140) is located in the device (116) below the distal end of the first metatarsal head of the step. 10. A method of making shoes in which the upper and the sole (outer sole) are fixed to the mold layer (sole), characterized in that a permanently rigid fixture is assembled on the upper side of the mold layer (sole). a cup-shaped recess and anatomically shaped arch support, as an integral part of the shoe, so as to reinforce the sole from the heel forward exactly proximal to the heads of the metatarsal bones, the device being placed before insertion of the uppermost and / or outer and the sole of the shoe so as to ensure that the heel of the shoe is locked and stabilized in the finished shoe and maintain the heel higher than the toes relative to the base plane so that the heel of the wearer is maintained approximately parallel to the base plane.