RU2399356C1 - Removable insole for footwear - Google Patents

Abstract

FIELD: personal use articles.

SUBSTANCE: three-layers inserted insole for footwear consists of a highly elastic material, sealed at the periphery in the form of a sealed covering, and has several cameras that are connected to each other with channels. There on two levels with a special distribution insert located in the insole under the arch of the foot four functional chambers are set up. At the lower level made with the middle and lower elastic layers there are toe and heel injection chamber. At the top level, between the middle and upper breathable layer there are toe and heel aeration chambers. The distribution insert is equipped with bypass channels connecting the lower chambers with their opposite upper chambers. The lower chambers are interconnected by general pressure channel with an outlet to the atmosphere. All channels are equipped with outlet check valves. In addition, this distribution insert is equipped with an operating mode switch of insole, which is made in the form of a rectangular groove in the body of the distribution insert located perpendicular to the longitudinal axis of the insole, and crossing the bypass channels between the chambers. Also there is a rectangular "cake" placed and corresponding to the shape of groove, with holes similar to holes intersected the spillway channels. At that the ratio of the size of the groove and "cake" is made in such a way that ensures the free movement of "cake" in its two extreme positions in the groove. I.e. when the holes of the "cake" are coaxial to holes of bypass channels (ventilation mode), and when it closes these channels (heating mode).

EFFECT: intensification of air exchange as in a toe and a heel parts of the shoe with the help of cyclic air injection into the upper chamber of the insole using the lower chambers during the movement of the shoe with the insole, as well as in the case of need, capability of heating toe and heel parts of footwear due to cyclic compression of air in the spillway overlapped channels in closed volumes of lower chambers of insole.

3 dwg

Description

The invention relates to the shoe industry, in particular to designs of insoles that provide increased comfort wearing everyday and special shoes in all weather conditions.

Known multi-layer insole made of interconnected layers of hydrophilic natural (leather), sweat-odor-moisture absorbing fibrous (activated carbon fiber) and hydrophilic (stealth cardboard) materials (RF patent No. 2150877, class A43B 17/10, 1999) .

The disadvantage of this device is that the possibilities of such a composition are finite due to the natural saturation of the layers during operation of the listed excretions and their subsequent loss of protective properties.

A known design of an insole for shoes, the basis of which is used 15 or more layers of tissue paper, which allows to insulate shoes in the winter (RF patent No. 2060706, class A43B 17/10, 1992).

The disadvantages of this design are the apparent one-sided nature of the appointment, the fragility, due to the instability of the paper against abrasion, and the reduction, up to the loss, of the functional properties during use, due to the natural moisture saturation of the insole during direct wear and loss of heat-protective properties.

Known insert insole designed for everyday, work and sports shoes with a technical result in the form of resistance to deformation, as well as providing antiseptic and heat-insulating properties, consisting of three layers bonded to each other, the upper and lower of which are made of hydrophilic, and the middle of moisture-absorbing material (RF patent No. 2260362, class A43B 17/00, 2005).

The disadvantage of this device is the narrow focus of the proposed solution, which consists of the entire set of requirements for the insole, in fact, only in moisture absorption.

A device is known for a custom-made insole, structurally consisting of three layers of molds that can be molded in a controlled manner at a transformation temperature of 71 ° C and jointly provide shockproof properties (RF patent No. 2432893, class A43B 17/14, 13/12, 2005).

The disadvantage of this device is the failure to comply with other requirements usually imposed on the insoles, except for the claimed narrowly applied quality.

Known insert insole for shoes, made of elastic material, containing in the supporting part an airtight chamber with partitions, filled with a working medium that, when walking, flows in the chamber, is heated from friction and creates the effect of heating the legs, and in the heel of the insole is a pump-pump for pumping air while walking through the channels from the heel to the toe of the shoe, providing ventilation of the feet (RF application No. 2004106768, CL A43B 13/38, 2004).

The disadvantage of this device is that the thermal effect of friction during the overflow of the working medium, whether gas or liquid, in the sealed chamber will be insignificant, and the presence in the device of a parallel air ventilation system, in addition to the existing one, significantly complicates the system.

Known ventilated shoes with a vacuum chamber providing forced ventilation in the form of a pneumatic pump installed in the cavity of the heel part of the molded sole and consisting of a hollow cylinder and two pistons connected by a rod (RF patent No. 2343810, class A43B 7/06, 2009) .

The disadvantage is that the claimed technical result in the form of creating local zones of unobstructed ventilation due to oriented blowing of problem areas and increasing the ventilation rate of shoes is also associated with a significant technical complication of the device, due to the use of paired movable structural elements.

Known ventilated shoes, in which the heel of the shoe is an air pump in the form of an elastic chamber, the rest of the inner sole is hollow, provided with holes on the upper side and a compartment in which there is a heat-absorbing means for cooling the supplied outside air (RF patent No. 2343809, C. A43B 7/06, 2009).

The disadvantage of this device is the unjustified design mood for ventilation of the forefoot only, as well as its orientation only to cooling, while external conditions can cause other needs.

Known heated shoes containing a device for heating the foot in the form of an electric heating element, which allows you to use it at low ambient temperature (RF patent No. 2332916, class A43B 7/02, 2008).

The disadvantage of this device is that the increase in the operational properties of shoes is associated with the use of an external energy source - a small-sized power source.

Known shoes with ventilation, the technical result from the implementation of the decisions which consists in simplifying the design of the shoe and in improving the performance properties associated with simplifying the rules for using shoes, as well as reducing the material consumption of the shoe, in which the insole is hermetically connected around the perimeter with the sole, has perforations , as well as shock-absorbing elements (RF patent No. 2238194, CL A43B 7/06, 2008).

The disadvantage of this device is that of the entire set of properties presented to shoes, only two are actually considered: the removal of moist air and the possibility of depreciation.

As a prototype, an insole made of highly elastic material bonded around the periphery in the form of an airtight shell having several interconnected chamber channels with elastic elements filled with antimicrobial substances (RF patent No. 2117026, class A43B 17/10, 17 / 14, 2001).

The disadvantage of this device is the narrow medical focus of the appointment of the insoles and, in this regard, the limited scope, especially in inclement seasons.

The objective of the invention is to create insoles with an achievable technical result in the form of increasing the compactness of the structure and increasing the efficiency of its work by intensifying air exchange in both the toe and the heel of the shoe when moving in shoes with such an insole, as well as the possibility, if necessary, of heating toe and heel parts of shoes.

The problem is solved in that in the insole for shoes, consisting of layers of highly elastic material bonded around the periphery in the form of a sealed shell, and having several interconnected channels of the chambers with elastic elements, in accordance with the invention, in the place of the insole corresponding to the arch of the foot , a special distribution insert is installed, forming at the lower level of the lower pair of elastic layers of the three-layer insole, and also, respectively, at the upper level of its upper pair of layers, two functions nationally separate chambers, each of the lower discharge chambers being sealed and internally provided with elastic elements (for example, twisted or flat springs) bursting these layers, and each of the upper chambers is breathable by using a permeable material fastened around the perimeter to the middle elastic layer, in addition, each of the lower chambers is connected to the upper chamber opposite to it by its bypass channel and an outlet window located in the upper part distribution insert, as well as with the lower chamber opposite to it, with a single discharge channel, which is located at the bottom of the distribution insert and is equipped with an independent input, and all internal insertion channels at their outputs are equipped with check valves, in addition, this distribution insert is equipped with an insole operating mode switch, which made in the form of a rectangular groove in the body of the distribution insert, located perpendicular to the longitudinal axis of the insole and crossing the bypass channels m I’m waiting for the cameras, as well as for a rectangular “cracker” corresponding to the shape of holes in it, with holes similar to the openings of intersected bypass channels, and the ratio of the dimensions of the groove and “cracker” is made in such a way that the “cracker” can be freely moved to its two extreme positions in the groove when the openings of the "cracker" are aligned with the openings of the bypass channels and when the "cracker" overlaps these channels.

The proposed design of the insole is illustrated using figures 1-3.

In figure 1. shows a General view of the distribution insert of the right leg (diagram), where:

1. The upper part of the distribution insert

2. The lower part of the distribution insert

3. Inlet ports of the discharge channel

4. Bottom elastic layer of the front of the insole

5. The outlet of the discharge channel (non-return valve not shown)

6. The outlet of the bypass channel "heel-toe" (non-return valve not shown)

7. The outlet window of the bypass channel "heel-toe"

8. The inlet of the toe-heel bypass

9. The middle elastic layer

10. The upper breathable layer of the aeration chamber

11. The outlet window of the bypass channel "toe-heel"

In figure 2. shows a longitudinal section of the distribution insert in the plane of the bypass-toe-heel, where:

12. Toe aeration chamber

13. The backflow valve of the heel-toe bypass

14. Heel aeration chamber

15. Heel discharge chamber

16. The elastic elements of the discharge chambers

17. Groove

18. Rusk

19. Sock discharge chamber

22. The toe-heel bypass

In figure 3. shows the cross section of the distribution insert in the groove plane, where:

1. The upper part of the distribution insert

2. The lower part of the distribution insert

10. The upper breathable layer of the aeration chamber

17. Groove

18. Rusk

20. The discharge channel

21. Bypass channel “heel-toe”

22. The toe-heel bypass

The insole for shoes is arranged as follows. In place of the insole corresponding to the arch of the foot, a special distribution insert is installed (Fig. 1, the upper part is 1 and the lower part is 2), forming at the lower level from the lower pair of elastic layers (Fig. 1, layers 4 and 9) a three-layer insole, and also, respectively, at the upper level from its upper pair (layers 9 and 10), two functionally separate chambers (Fig.2, 19 and 15, 12 and 14), and each of the lower discharge chambers (19 and 15) is made tight and inside equipped with elastic elements (16), for example, from twisted or flat springs, bursting these layers, each of the upper chambers (12 and 14) is made breathable by using a breathable material in the upper layer (10) attached perimeter to the middle elastic layer (9), in addition, each of the lower chambers (19 and 15) is connected with the upper a camera (communication: 19-14, 15-12) with its bypass channel and an outlet window located in the upper part of the distribution insert. This connection is represented in figure 2 by the following positions: inlet (8), bypass channel (22), check valve (13), window (11). In addition, each of the discharge chambers is connected to the opposite discharge chamber by a single discharge channel (outlet - (5), discharge channel 20), which is located in the lower part of the distribution insert and is equipped with an independent input (3). To prevent backflows, all internal channels of the insert at their outputs are equipped with check valves (as in figure 2, position 13). In accordance with the task, this distribution insert is equipped with a switch of the insole operation mode, which is made in the form of a rectangular groove (17) in the body of the distribution insert located perpendicular to the longitudinal axis of the insole and intersecting the bypass channels (Figs. 3, 21 and 22) between the cameras, and also placed therein corresponding in shape to a rectangular “cracker” (18) with holes similar to those of intersected bypass channels (21 and 22), and the ratio of the dimensions of the groove and “cracker” is made so at the same time, it is possible to freely move the “cracker” to its two extreme positions in the groove when the openings of the “cracker” are aligned with the openings of the bypass channels and when the “cracker” overlaps these channels.

The upper (1) and lower (2) parts of the distribution insert are molded of elastic material separately with the simultaneous formation of all the lines and positions indicated in the description, and then, before general assembly, are assembled together, together with the middle layer located between them (9) .

After the insoles are inserted into the shoes and put on their feet, the following cycles of the two modes of operation of the device are implemented.

The first is aeration, i.e. when the “cracker” (18) of the insole functioning mode switch is aligned with the openings of the bypass channels (21 and 22). In the leg, entered for the step, the inter-surface elastic elements (16) in the lower level of the insole push apart the layers (4 and 9) of this level, performing a stroke of suction of external air through the discharge system (3, 20, 5) simultaneously in its forefoot and calcaneus ( chambers 15 and 19). When the heel of the shoe comes into contact with the ground under the influence of body mass, the heel of the injection chamber (15) is compressed and the air passes through the air bypass channel (21) and the exhaust window (7) enters the upper level sock aeration chamber (12). Filtered through the upper breathable material of the forefoot aeration chamber (12), it provides aeration of the forefoot. When the load is transferred to the forefoot, the forefoot pressure chamber (19) of the lower level is compressed and air is transferred to the heel aeration chamber (14), where, filtering through the breathable material of the heel aeration chamber (14), it provides aeration of the heel of the foot. A similar cycle (heel - forefoot, etc.) is repeated for the other leg, as in each subsequent step. Check valves on the bypass channels, in the form of elastic flat plates attached from one edge, made, for example, of metal or non-metallic materials, ensure the operability of the device, preventing the formation of oncoming flows.

The second mode is heating, i.e. when the "cracker" (18) of the insole operation mode switch overlaps the bypass channels (21 and 22). In this case, when walking, repeated compression of the same air occurs in the closed volumes of the forefoot (19) and the heel (15) of the inlet pressure chambers and, as a consequence, its heating. Possible some air leaks from the injection chambers are replenished under the influence of inter-surface elastic elements (16) through the discharge system (3, 20, 5).

Reinstallation of the insole operation mode switch from one extreme position to another is carried out by a flat kick of a foot against an external object, leading to the movement of the “cracker” (18) in the groove (17) to the “aeration” position, i.e. when it is aligned with its openings for the bypass channels (21, 22), or also with a flat blow, but with the other side of the leg, to the “heating” position, i.e. when the “cracker” of the insole functioning mode switch is moved by an opposite impact in the direction to the other extreme position in the groove and overlaps the bypass channels (21, 22).

Both modes are implemented not only when walking, but also when running and jumping. The use, and even more so, the alternation of modes provides comfortable conditions for keeping feet in shoes under any external conditions.

It is the installation of a distribution insert in the insole and the formation of two independent cross, cyclically operating systems with its help that not only increase the aeration area of the foot and, thus, provide a higher quality environment in shoes, but also by combining heating and ventilation systems into a single whole the problem of ensuring the compactness of the device and combining target functions. This is done by placing in the same insert an easy-to-use switch of the insole functioning modes, which allows either the foot ventilation mode or their heating mode to be realized in the same bypass channel system by converting the direct work of air compression in the closed volume of the pressure chambers directly into heat, which is significantly more effective in comparison with thermal processes that occur when air flows between the partitions inside the chambers, as proposed in one of the analogues.

Claims (1)

An insertable insole for shoes, consisting of layers of highly elastic material fastened around the periphery in the form of an airtight shell, and having several interconnected chambers with elastic elements, characterized in that a special distribution insert is installed at the insole corresponding to the arch of the foot, forming on the lower level of the lower pair of elastic layers of the three-layer insole, as well as, respectively, at the upper level of its upper pair of layers, two functionally separate chambers, each of the lower of these chambers is sealed and provided with elastic elements inside, for example, of coil or flat springs bursting these layers, and each of the upper chambers is breathable by using a breathable material in the upper layer attached along the perimeter to the middle elastic layer, in addition, each of of the lower chambers is connected with the upper chamber opposite to it by its bypass channel and an outlet window located in the upper part of the distribution insert, as well as with the lower chamber opposite to it swarm with a single discharge channel, which is located at the bottom of the distribution insert and is equipped with an independent input, and all internal channels of the insert at their outputs are equipped with check valves, in addition, this distribution insert is equipped with an insole operating mode switch, which is made in the form of a rectangular groove in the body of the distribution insert located perpendicular to the longitudinal axis of the insole and crossing the bypass channels between the chambers, as well as the corresponding shape a rectangular "cracker" with holes similar to the openings of intersected bypass channels, and the ratio of the dimensions of the groove and "cracker" is made in such a way that it is possible to freely move the "cracker" to its two extreme positions in the groove when the openings of the "cracker" are aligned with the openings of the bypass channels and when the "cracker" blocks these channels.

Images