KR20230150771A - Shoes insole system that enhances forward walking energy through the balloon effect of air pockets - Google Patents

Abstract

The present invention provides air pockets in the shoe insole to relieve the landing strike that occurs when walking or running through air flow using the mutual balloon effect and takeoff. ) and a structure and method for enhancing forward walking kinetic energy.
As shown in FIG. 2, the present invention suppresses joint injuries by alleviating the shock of landing on the outer midfoot and absorbing shock on the inner forefoot immediately afterward through the air pocket, and the balloon effect of the air pocket through landing and jumping increases the effect on the rearfoot and foot arch. The purpose is to facilitate jumping and increase forward walking energy by pushing up the arch.
This tension through the pressure of the rearfoot and arch not only leads to landing on the outer midfoot rather than the rearfoot, but also prevents overpronation and oversupination by correct walking. Systemize to induce habits.

Description

Shoes insole system that enhances forward walking energy through the balloon effect of air pockets}

The present invention relates to a system for effectively controlling kinetic energy such as takeoff, including cushioning for cushioning the impact of an insole, which is one of the shoe components such as walking shoes and running shoes.

More specifically, air pockets are installed in the shoe insole to relieve the landing strike that occurs when walking or running through mutual airflow using the balloon effect and jumping ( It relates to a structure and method for enhancing takeoff) and forward walking kinetic energy.

The insole is an important component in terms of comfort as it is placed on the bottom of the shoe and comes in direct contact with the wearer's foot. In general, insoles are equipped with shock-absorbing cushioning to reduce foot fatigue or prevent injuries during physical activity. Recently, there has been a trend to incorporate two or more complex functions of cushioning and stability into the insole itself, such as directly mounting arch support to enhance stability in addition to cushioning for strenuous activities such as mountaineering shoes. there is.

Additionally, in the case of cushioning materials, in addition to the most common EVA (ethylene vinyl acetate), phylon (high compression EVA), polyurethane, memory foam, ortholite foam, air pad, etc. There is a tendency for differentiation through the development of various materials.

As mentioned above, the cushioning material of the insole must inevitably be supplemented due to the different shapes of the curve of the sole and the top of the midsole, and this is a phenomenon that occurs in various ways. Additionally, each person's foot shape is different, and shoe products are also different. Therefore, it is desirable for each individual to select and use the insole and it should be a removable part. However, problems with deterioration of cushioning function and durability, such as the cushioning material deteriorating into a flat shape depending on the period of use of the insole, are accelerating the research and development of new cushioning materials.

Among these, the air pad insole can be said to be a new and evolved cushioning method that uses air as a buffer. This insole is made with a separate air pad component and is generally inserted into the insole to relieve the impact of the heel of the rearfoot. However, there is a problem that the thickness of the insole must be increased as much as the thickness of the air pad for the cushioning function, and assuming that the insole thickness is generally around 5mm at the forefoot and around 10mm at the rearfoot, the air pad must be placed in a location other than the rearfoot. There are limitations that make it difficult to deploy.

Essentially, insoles are used to cushion the shock that occurs while walking or running. At this time, it is a well-known fact that foot strike can cause fatigue and damage not only to the muscles and joints of the feet, but also to the muscles and joints of the legs, spine, and brain.

According to some views, heel strike occurs during landing during walking and running movements, and the takeoff process is repeated toward the big toe of the forefoot. At this time, it is explained that cushioning is necessary to relieve heel shock because the shock when landing on the heel has a negative effect on the joints.

However, from an exercise mechanics perspective, the strike when walking or running is not concentrated only on the heel. Rather, as shown in Figure 2, many midfoot landings are observed, and especially in fast walking and running movements, midfoot and forefoot landings and jumps are repeated in a cycle.

Nevertheless, in general, reinforcing the cushioning material on the rearfoot serves as a final buffer because the impact of heel shock is very harmful to the human body (especially the knee joint), and encourages landing on the rearfoot from the beginning. It should be said that there is no intention to strengthen the cushioning material in the rearfoot area. Moreover, there has been a recent trend toward increased barefoot exercise, and the rearfoot landing walking habit inevitably exposes people to the risk of serious joint injuries.

Therefore, the primary purpose of the present invention is to prevent joint injuries by alleviating the shock of landing on the outer midfoot and absorbing shock on the inner forefoot immediately after landing through an air pocket, as shown in Figure 2. In addition, the final purpose is to facilitate jumping and enhance forward walking energy by using the balloon effect of the air pocket through landing and jumping to push up the hindfoot and foot arch.

This tension through the pressure of the rearfoot and arch not only leads to landing on the outer midfoot rather than the rearfoot, but also prevents overpronation and oversupination by correct walking. Systemize to induce habits.

In order to achieve the above object, the present invention includes an air pocket function in the insole. The structure of the air pocket is preferably integrated into the insole itself, but if there is a problem with manufacturing technology, parts can be made separately and included.

In terms of structure, it consists of two pairs per foot, and one pair consists of two pockets and an air passage (5) connecting them. The internal air pressure should be similar to standard atmospheric pressure (14.7 psi) before ignition, and quality control should be carried out to prevent air from leaking out or bursting of air pockets due to exercise load during ignition (when pressure is generated). In addition, based on the airway, if one pocket is pressed, the pressure in the other pocket increases, and if not pressed, the pressure is restored to its original state.

We will explain the placement of the air pocket in more detail based on the right foot of the insole.

The first important point for landing strike is the lateral midfoot (1). The first pocket is created in an elongated circular shape to support the foot muscles developed along the fifth metatarsal bone (15), and the second pocket connected to it is created in the hindfoot (2).

When landing, the 5th metatarsal (15) region alone does not absorb all of the shock. In theory, it is said that the magnitude of force is inversely proportional to the square of the distance (Coulomb's law). As shown in FIG. 2, the desired foot movement should dissipate the shock in a chain from the 5th metatarsal bone (15) to the 1st metatarsal bone (11) and the coxa bone (21) and delay the aftermath. Finally, the strike aftermath is dissipated in pocket 3.

Dispersing the force of landing impact to protect the feet is a very important issue, and it can be seen that the human body has evolved this system over a long period of time. A cause for concern is bad walking habits that go against the laws of nature. Landing only on the back foot or biased, excessive, or forced walking habits can expose you to the risk of joint injuries in the feet and legs.

As described above, it was explained that the impact of landing is alleviated as the air pressure moves to the first pocket (1) and the third pocket (3). At this time, as a reaction, the pressure in the 2nd pocket (2) and the 4th pocket (4) increases. In other words, it works to lift the hindfoot and arch using pressure energy. In this way, the force that pushes the rear foot (2) and the arch (4) upward from the floor by air pressure increases takeoff energy and is beneficial for forward walking. In addition, in the subsequent landing movement, a system is created that induces a landing on the outer midfoot instead of a rearfoot landing. Ultimately, the structure of the air pocket of the present invention is systemized so that landing and jumping are circulated to the areas of the first pocket (1) and the third pocket (3) for correct walking and running.

Figure 1 is an image showing the arrangement structure of air pockets in the insole of the present invention with respect to the right foot.
1: Pocket 1 or outer midfoot 2: Pocket 2 or rearfoot
3: Pocket 3 or medial forefoot 4: Pocket 4 or arch
5: Air passage
Figure 2 is an image showing the movement of force from the point of impact from the outer midfoot to the inner forefoot during a landing motion for correct walking.
Figure 3 is a photograph illustrating the main joints described in the present invention.
11: 1st metatarsal bone 15: 5th metatarsal bone
21: No. 1 stunning goal 25: No. 5 stunning goal

The present invention is designed to induce correct movements of landing and jumping when walking and running by using changes in air flow and pressure between air pockets 1 and 2 and air pockets 3 and 4, like a balloon effect. Therefore, firstly, air pockets must be placed at the foot area for correct landing and jumping, and secondly, air flow and pressure must change according to the force of stepping on and pressing between the air pockets. Below, more active physical activities such as running are described in more detail as examples.

Firstly, the outer midfoot (1) is preferable for correct landing when running. The risk of joint injury due to hindfoot impact is well known. In detail, as shown in the placement of the first air pocket, the 5th metatarsal bone (15) and the muscle area surrounding it are the initial impact points. As mentioned, as shown in Figure 2, the impact is rapidly moved to the distant 1st coxa bone (21) and is absorbed or minimized. The third air pocket (3) is placed centered on the convex point (base of the hallux) where the first coxa bone (21) and the metatarsal bone (11) meet. As shown in Figure 2, moving the impact of landing to the base of the hallux is also a preparatory movement that leads directly to jumping.

Secondly, the change in pressure connected to pocket 1, which occurs due to the balloon effect, occurs in air pocket 2 located at the center of the rearfoot. Additionally, the change in pressure connected to pocket 3 occurs in the arch where pocket 4 is placed. To achieve this, pockets 2 and 4 must be designed to withstand approximately 2 to 3 times the air pressure. However, considering the removable and spare parts characteristics of the insole, low cost and appropriate structural design are efficient. In addition, in order to maintain a soft fit, it should be designed so that the thickness of the front and rear feet does not significantly exceed the general standard of 5 to 10 mm (excluding air pockets). For this purpose, the upper and lower insole panels are designed separately and the pockets are built in by firmly attaching them. The pocket and air passage are designed using a molding method, and forming materials (sponge, etc.) and members suitable for the air passage can be inserted inside the pocket as needed to maintain the shape. Additionally, a coating film or coating tape can be used to support the pressure of the air pocket.

Claims (2)

Air pockets are placed on the outer midfoot and hindfoot of the sole and connected to an air passage.
Air pockets are placed on the inner forefoot and arch area and connected to an air passage.
Insole structure characterized in that the air flow in each air pocket generates pressure movement Air pockets are placed on the outer midfoot, rearfoot, inner forefoot, and arch areas of the sole.
Insole structure characterized by cross-connection between pockets or having an independent form