KR100957778B1 - Rocker type shoe's sole - Google Patents

Abstract

The present invention relates to a shoe sole, and more particularly, to forming the sole bottom surface of the shoe divided into a smooth curved portion and a flat portion. In particular, the present invention analyzes the gravitational line of the human body and the movement of the ankle during human walking, and by starting the sole portion of the shoe suitable for the movement of the ankle, rocking motion by the three locker system when walking It is intended to induce a comfortable and natural walking while using less energy. The present invention is divided into three parts of the back surface bottom surface, the middle surface bottom surface and the front surface bottom surface on the basis of the body gravity line corresponding position and the metatarsal head corresponding position, the shoe sole that is in contact with the ground, The surface angle and the bottom surface angle are applied as the most ideal angle considering the range of motion angle of the ankle joint, and the bottom surface of the middle portion is formed flat with the ground to pursue forward and backward balance and stability based on the human gravity line. It is to be done. According to the present invention, it is possible to feel comfortable even while standing for a long time, and to prevent living diseases caused by not dispersing the reception of weight.

Description

Locker type shoe sole {ROCKER TYPE SHOE'S SOLE}

The present invention relates to a shoe sole, and more particularly, to forming the sole bottom surface of the shoe divided into a smooth curved portion and a flat portion. In particular, the basis for dividing the sole bottom surface into a flat portion and a gentle curved portion is based on the structure of the human foot, and the angle of the gentle curved portion is formed in consideration of the range of motion of the ankle joint during human walking. The upper surface of the shoe sole is arc-shaped, which not only reduces the impact when walking, but also allows the use of the muscles of the lower extremities evenly. It's about technology that makes you feel comfortable by being distributed.

Humans have walked through the interaction of the lower limbs since prehistoric times. To walk a human being mechanically means to shift the human center of gravity. Many researches have been conducted on these human steps, and in addition, research and technology development on shoes worn on foot were also involved.

In particular, recently, various functional shoes have been developed and provided to consumers due to the improvement of living standards and health concerns, and the functions are also released in a form that can give various exercise effects.

Looking at only a few of the related arts related to this, Patent Registration No. 10-239854 "Health Promoting Shoes" and Patent Registration No. 10-536050 "Shoes for three-time walking shoes" to improve the above technology is disclosed It is.

10 and 11 show a cross-sectional view and the shoe of the prior art "sole of three-time walking shoes" described above.

In the above-described prior art, only the heel portion is formed to be separated from the ground in two stages, and when the weight is moved to the front heel after landing from the heel during walking, it is no different from the case of wearing normal shoes. There was a problem that caused an imbalance in the degree of exercise. In addition, the consideration in the decorative aspect is off-side and does not consider the angle of the sole portion of the shoe and the angle of movement of the ankle according to the human walking can cause inconvenience to pedestrians when walking.

On the other hand, as another prior art Patent Registration No. 10-377822 "active rolling device" is disclosed, this technology is now called "Masai shoes".

Figures 12 and 13 show a view of the "sole of the actively rolling walking device" and shoes. This prior art is to make the sole sole of the shoe arbitrarily convex or arched or arc shape, and to make the inner sole to be actively rolled by making relatively flexible and flexible material, which also convex the sole of the shoe at an arbitrary angle. There is a problem that does not take into account the characteristics of human walking. In addition, since the sole material is selected as the material of the flexible material, the hardness is lowered, and when contacted with water, there is a problem in that hydrolysis occurs depending on the material. Since the thickness becomes too thick, there is a problem that not only can not function as a real heel, but also has a risk of falling as the fit becomes dull.

The above-described prior art has a problem in that the burden on the knee joint and the waist in the process of holding the center of the body so as not to fall back and forth when the body is not walking. In addition, unless the correct training for wearing the shoe is applied, the hip muscles and the spine muscles are easily pushed in the posture process, and the waist tends to be tense. In other words, due to the instability of the shoe with the center of the bottom of the shoe, the center of gravity of the shoe is more likely to be forward, thereby centering the body in front of the foot as if standing in high heels, with the knee more than the original Tensions and the back are bent backwards, distracting the natural S-line curves of the spine.

On the other hand, in addition to the prior art described above, but also to separate the bottom surface of the sole is disclosed, not only does not clearly indicate what kind of consideration the bottom surface of the sole, but also from the bottom surface of the sole Nor is it clear about what angles they give to the ground from the front or back.

As a result, the conventional approach to shoe soles does not take into account the characteristics of human gait, simply by bulging or arcing the sole bottom of the shoe (referred to herein as 'rocker'). It is not too much. Such human walking, especially rocker-type shoes that do not consider the range of motion of the ankle, may cause damage to the ankle joint by excessive dorsal flexion or low flexion.

On the other hand, from various studies and observations of human walking, when a heel of one foot touches the ground and then falls back to the ground to walk, the foot is about 60% of the cycle. It is known that it is in contact with the ground (this is called the stance or stance section) and is about 40% off the ground (this is called the stinger or swing section). The rocking motion range of the ankle joint has a dorsal flexion of 0 to 10 degrees and a low flexion of 0 to 20 degrees. Here, 'dorsiflexing' refers to the upward motion of the foot, and 'palntar flexion' refers to the downward motion of the foot.

In addition, humans use their hands and heads to walk, and they gain momentum by shifting their legs. This propagation force is provided by the legs of the stator section forward without touching the ground, and the foot touching the ground of the stance section assists this progression. More specifically, the assist of the progression by the foot touching the ground, the heel rocker and the forefoot contacting the floor using the heel as the axis with the low buckled foot The ankle joint can be divided into ankle rocker, which is used as a support for continuous progression, and a forefoot rocker, in which the weight falls behind the foot support surface during the walking cycle and strongly pushes the force forward. have. In this regard, it will be described in more detail in the "details for carrying out the invention".

Considering the sole of the shoe considering the ankle movement as described above is difficult to find in the prior art.

The present invention is to analyze the movement of the ankle during human walking, and to disclose the sole portion of the shoe suitable for the range of motion of the ankle.

That is, the present invention induces a rocking motion by the three locker system when walking, it is possible to walk comfortably and naturally while using less energy, in particular, the bottom of the human body gravitational line The location was divided into subdivisions based on the location of the metatarsal head. The posterior floor angle and the anterior floor angle were applied at the most ideal angle in consideration of the range of motion angle of the ankle joint. It is to provide a locker type shoe sole that can pursue balance and stability. As a result, the instability caused by the convex portion of the middle of the bottom of the shoe, which is a problem of the Masai shoes in the prior art, can be eliminated, and the walking angle is applied by applying the angle at which the ankle joint moves when walking the back bottom angle and the front bottom angle. It is to provide a locker type shoe sole that allows for a smooth locking movement when

In addition, the upper sole of the sole can support the medial calf of the sole, and in consideration of the pressure of the foot and the posture of the body during walking, the height of the rocker considering the height difference in the position of the center of the calcaneus surface, the position of the medial calf center, and the position of the metatarsal head Is to provide a shoe sole.

In addition, on the upper surface of the locker-type shoe sole according to the present invention, a locker that can be combined to include a shock-absorbing insole in order to be able to distribute the pressure of the foot in the portion corresponding to the calcaneus and the portion corresponding to the metatarsal head in the skeleton of the foot Is to provide a shoe sole.

Lacquer-type shoe sole according to the present invention for achieving the above object is connected to the ground bottom portion is divided into the rear portion bottom surface, the middle portion bottom surface, the front portion bottom surface, the rear portion bottom surface and the front The bottom portion of the portion is a rocker-type shoe sole each having a constant angle with the ground, wherein the bottom portion and the middle portion are separated based on the gravity line corresponding position of the human body, and the middle portion and the front portion are respectively. The surface is divided on the basis of the metatarsal head corresponding position so that the rear surface and the front surface are composed of gentle curves, and the middle surface is composed of the surface and the flat surface. From the corresponding position of the center of the center to the position corresponding to the front side of the longitudinal bone is characterized in that the horizontal.

In addition, the upper surface of the sole of the lacquer-type shoe is formed to face the inner sole of the sole to face the convex arc shaped convex shape with a gentle curved surface, the inner side of the surface opposite to the inner calf The height difference between the corresponding center portion of the calf and the longitudinal center surface corresponding position is 1 to 3 mm, and the height difference between the vertical center surface corresponding position and the position corresponding to the metatarsal head may be 2 to 4 mm.

In addition, the impact cushioning insole further comprises a shock-absorbing material made of polyurethane (PU), the shock-absorbing insole is thickened to disperse the pressure concentrated on the part corresponding to the calcaneus and the part corresponding to the metatarsal head And it is characterized in that the portion corresponding to the inner longitudinal arch is thin, the upper surface and the lower surface is formed in correspondence with the upper curve of the lacquer shoe sole. The shock-absorbing insole may be coupled to the recess while having an outer shape and a thickness according to the outer shape and depth formed by the recess formed on the upper surface of the lacquer shoe sole.

According to the present invention, the bottom surface which is in contact with the ground is divided into three parts on the basis of the position of the gravity line and the metatarsal head of the human body, and the back bottom angle is the range of the dorsal flexion angle of the ankle joint and the bottom bottom angle. In consideration of the range of the low-side flexion angle of the ankle joint is calculated to the most ideal angle, it can pursue the front and rear balance sense and stability based on the human gravity line.

In particular, since the angle of the back of the floor is based on the gravity line of the human body, it disperses the weight of the body in the foot, knee, and waist, making it feel comfortable, and living diseases caused by failure to distribute the weight of the body (plantar fasciitis, knee arthritis, Spinal discs, etc.).

In addition, during the walking cycle, three rocker motions of the ankle joint occur in accordance with the stance phase during the walking cycle, thereby allowing natural rocking movement and normal walking when walking. Locking and normal walking like this not only reduces the impact of walking the human body, but also increases the muscle mass by using the muscles of the lower extremity, and the effect of smoothing the movement of the pelvis to exercise the spine. You can get it together. Walking with normal walking can help balance the left and right of the body to help rehabilitation of living diseases (valgus valgus, arthritis, scoliosis, discs, etc.).

Also, while standing, if you look inside the foot, if you have a normal medial calf that accepts weight, the weight is received and distributed through the lower fascia. If you have an abnormally lowered or elevated medial calf, such as a flat foot or an ankle foot, overextension, overflexion, weakened or tense basal fascia will not be able to properly accommodate and distribute weight. According to the present invention, the lower fascia that is over-curved in the case of the ankle foot is relaxed by the bottom angle of the posterior part, and in the case of flat foot, the lower fascia that is overextended and weakened is given by a constant height around the medial calf center. It allows you to receive and disperse your weight when standing, so you can feel comfortable even if you stand all day long.

In addition, the impact relief insole is 5 to 10 degrees from the body's gravity line to the end point of the calcaneus to prevent the body's frontal tilt and fit the body's gravity line. In order to prevent the shaking of the foot contacting phase, which is the weight load during the standing, the back surface is angled with a gentle curve, and the middle surface is made flat with the ground from the position corresponding to the gravity line to the metatarsal head. In order to hold the medial calf of the foot in the middle stance phase, the convex height of the medial calf facing surface was formed to be 2mm convex. 10-15 from the metatarsal head position to the front of the sole to stop at the metatarsal head without going to this toe Since the angle of the front surface is given by the gentle curve of the figure, the soft three-step locking exercise prevents living diseases and can provide a shoe sole that reduces walking fatigue and provides safe walking.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, only this embodiment to make the disclosure of the present invention complete and to those skilled in the art to fully understand the scope of the invention It is provided to inform you.

The human lower body is composed of legs and feet. The joints connecting them are called ankle joints (also called 'ankle joints' or 'femoral joints'). In other words, the ankle joint refers to the connection between the tibia and the foot. 1 is a graph showing the compression force generated in the ankle joint as it moves forward during the standing phase in one cycle of walking.

The normal gait cycle is divided into a stance phase and a swing period. The stance is a time when the foot touches the ground, and as shown in FIG. 1, occupies about 60% of the normal gait cycle. The stance consists of heel strike, foot flat, mid stance, heel lift, and toe off. The propulsion through the stance is based on three rocker systems of the ankle joint, which are made by the foot and ankle, which will be described later.

In normal walking, the foot movement of our body finds the greatest comfort in rolling as the rocker bottom of the rocking chair. FIG. 2 shows the continuous flow of the three rocker systems of the ankle joint. Shown: (a) Heel Rocker (b) Ankle Rocker (c): Forefoot Rocker.

In the continuous flow of the rocker system, the heel, ankle, and forefoot are assisted by a rocker that allows the body to move forward while maintaining the knee posture. The three rocker systems are like the bottom of a rocking chair. (Rocker Bottom) can be considered to be the same as the rolling action, according to the present invention induces the rocking motion (Rocking Motion) by the rocker system like the rocker bottom (Rocker Bottom) when walking, for more comfortable walking In order to achieve a variety of exercise effects.

Hereinafter, the step of the stance and the rocker system will be described in more detail while examining the range of motion of the ankle according to the walking through the drawings. Figure 3 is a photograph shown to explain the operation of the ankle joint appearing during the walking cycle, (A) is the neutral position state of the ankle (B) is the dorsal flexion state of the ankle (C) is a low side bending state of the ankle, 4 is a graph showing the range of ankle joint movement during the walking cycle.

Heel strike, the first stage of standing, refers to the movement of the heel to the ground. At this time, the hip joint (hip joint) is bent (flexion), the knee joint (knee joint) is stretched (extension), and the ankle joint is slightly pulled up the instep (dorsiflexion; dorsiflexion; Heel will touch the ground. This is a simultaneous stance with both feet touching at the same time.

The second step, the foot flat, occurs when the heel touches the ground immediately after the heel touches the ground, where the weight moves to the lower extremity. In addition, the heel is used as a locking function to prevent the body from excessively moving forward, and the knee joint is slightly bent (flexed) to absorb the shock to the weight moved forward. In addition, the ankle extension motion (bottom flexion; plantar flexion; see Fig. 3 (C).) Heel Rocker function in the three lacquer system of the ankle, as shown in Fig. 2 (A) To limit. Instead, the toe off action occurs on the opposite foot.

The third stage, Mid stance, is the time when the center of gravity of the human body passes through the center of the foot after the foot contact is made. At this time, the weight is supported by one lower limb, and the hip joint is changed from a bent state (flexion state) to an extended state (extension state). At this time, the ankle joint performs an operation of lifting the instep upward (dorsiflexion), which corresponds to the ankle joint rocker (Ankle Rocker) in the three lacquer system of the ankle as shown in (b) of FIG. On the opposite foot, mid-stroke motion occurs.

Heel off, the fourth step, is when the heel falls off the ground after the intermediate stance, keeping the hip and knee joints fully extended (extended). Gradually the instep extends (lower flexion) and the Forefoot Rocker in the three lacquer system of the ankle, as shown in Fig. 2 (c), to prevent excessive movement of the body's center of gravity forward. Is done. The other foot prepares to touch the heel.

The fifth step, Toe off, is the last step in the stance, when the toes fall off the ground, which is the same time that both feet touch the ground, such as the heel. The hip and knee joints are gradually bent (flexion motion), and the ankle joint performs the motion of the instep extending downward (lower flexion). The other foot proceeds to reach the sole of the foot.

Here, the arc of the ankle joint motion is not large but is important for the absorption and progression of the impact during the standing phase. During each gait cycle, the ankle alternates between dorsi flexion and plantar flexion. In the graph of FIG. 1, the X-axis direction is a percentage (%) of the walking period, and the percentage (%) of the walking period is expressed as a percentage according to the time taken to reach each time in the walking period.

Referring to FIG. 1, the first step of the stance is about 0 to 10% of the gait cycle, and the second step is about 10 to 20% of the gait cycle, and the third step is the intermediate stance. The phase occurs at approximately 20-30% of the walking cycle, the fourth stage of heel lifting is approximately 30-50%, and the fifth stage of toe pushing is at 60%. The shaded areas in FIG. 3 show the late stages of walking.

Referring to Figure 4 looks at the extent of the ankle joint operation during the walking cycle. The dark solid line in the graph is the line connecting the average point of the normal angle during walking of the ankle joint movement, and the dotted lines above and below the dark solid line follow the standard change.

Heel contact, the first step in the standing phase (range of 0-10% of the walking cycle), is caused by the lower flexion of the ankle joint. Afterwards, the soles begin to reach the dorsal flexion. At this time, the ankle joint is fixed. The neutral position of the ankle joint (see Fig. 3A) is 20% in the walking cycle. Dorsal flexion continues through the first half of the midst and heel lift and reaches a maximum of 10 degrees (5 to 15 degrees considering standard changes) at about 48% of the walking cycle. This position is just before lifting the heel, and as the heel is lifted, the foot starts to move downward quickly, and the last step of the standing phase is the end of the dorsal flexion (55% of the walking cycle). ), The lower flexion will reach a maximum of 20 degrees (15 to 25 degrees considering the standard change) at 62% of the walking cycle.

As a result, after the heel of the foot touches the ground for the first time while walking, analyzing and analyzing the graph of FIG. 4 about the angle of the ankle according to the walking cycle, the low side bending maximum value of 7 degrees and the walking cycle at 0-12% of the walking cycle In the range of 12 to 48% of the dorsal bending maximum value of about 10 degrees, in the range of 48 to 62% of the walking cycle can be confirmed that the low side bending maximum of about 20 degrees. As a result, about 10 degrees of dorsal flexion and about 20 degrees of lateral flexion are required for the walking of the average speed. The graph shown in FIG. 4 is measured in a bare foot state. Due to the weight of the shoes, the operation angle of the dorsal flexion was found to occur about 5 degrees less than the maximum dorsal flexion. Accordingly, the bottom surface 1 of the rear portion of the shoe sole that is in contact with the ground at the time of the heel rocker (heel rocker) preferably has a gentle shape within the angle range of 5 degrees to 10 degrees. In addition, it is preferable that the front bottom 3 of the sole of the shoe, which is in contact with the ground during the forefoot rocker where the low side flexion occurs, has an angle of 10 to 15 degrees, which is the bottom of the rear of the shoe sole. It is considered that the angle a formed by the surface 1 starts at the body gravity line corresponding position D.

As described above, the present invention considers that the operation angle of the lower flexion and the ventral flexion of the ankle joint is an important gait variable so that the rear bottom 1 and the front bottom 3 of the shoe sole 10 form the ground. The rocking motion of the three locker systems is smooth and comfortable while keeping the angle to correspond to the angle of the ankle joint, while reducing energy consumption.

5 is a view for explaining the rocker-type shoe sole according to the present invention in relation to the foot skeleton, (a) Figure is a plan view of the foot skeleton, (b) Figure is a side view of the foot skeleton, (c) is a drawing of the present invention According to the side view of the locker-type shoe sole according to.

Reference numeral (D) shown in the drawing (C) of Figure 5 is a position corresponding to the 'human gravity line' on the sole surface of the shoe sole (hereinafter referred to as 'human gravity line corresponding position'). The gravitational line of the human body is generally located slightly ahead of the talus (aka 'radial bone') in the foot skeleton and is important for maintaining the body's forward and backward balance and stability. In other words, the 'right posture' refers to the body's gravity line (vertical line passing through the center of gravity) and its weight is well dispersed and each joint is in a stable position. It can be said.

Reference numeral (A) of Figure 5 refers to the position corresponding to the end of the calcaneus of the sole surface of the shoe sole, reference numeral (H) refers to the position corresponding to the front tip of the metatarsal bone of the sole surface of the shoe sole. On the other hand, the calcaneus rough surface is a site having a slight ridge on the posterior lower surface of the calcaneus.

Rocker type shoe sole 10 according to the present invention, as shown in Figure 5 (c) of the floor, the bottom surface which is a part which touches the ground bottom surface (1), the middle portion bottom surface (2), the front bottom It is divided into faces (3).

The rear part bottom surface 1 and the middle part bottom surface 2 are divided based on the gravity line position D of the human body, and the middle part bottom surface 2 and the front part bottom surface 3 are the metatarsal bones. It is divided based on two positions (H).

The rear bottom surface 1 and the front bottom surface 3 are formed in a gentle curve at a predetermined angle with the ground, and the middle bottom surface 2 is made flat with the ground.

Figure 6 shows a side view of a rocker shoe sole according to the present invention.

Referring to FIG. 6, the rocker-type shoe sole 10 according to the present invention has a predetermined thickness, and the bottom surface, which is a part touching the ground, has a rear bottom surface 1, a middle bottom surface 2, and a front bottom It is divided into faces (3).

The rear part bottom surface 1 is a part that comes into contact with the ground first when walking, and forms a constant angle with the ground to a position A corresponding to the end point of the calcaneus on the basis of the position corresponding to the gravity line of the human body. It is formed in a curve.

Here, the rear bottom surface angle (a), which is the angle that the rear surface bottom surface 1 makes with the ground, is preferably 5 to 10 degrees based on the position corresponding to the gravity line of the human body. It is designed to achieve the first heel rocker function among the three rocker systems of the ankle joint, such as rocking chair rocking motion, with a primary impact relief function when the heel hits. The heel lacquer is the first function of inducing normal walking, and the impact relief of the heel and the pelvis to the lateral movement to help spine movements and to contact the heel without bending the knees so as not to strain the quadriceps (quadrieps) It can reduce pain in people with knee pain. In addition, when standing, it prevents the body from leaning forward beyond the gravity line response position (D).

In other words, when the heel touches the stance, the ankle joint requires about 10 degrees of dorsal flexion, so that the ideal dorsal flexion angle of 5-10 degrees can be naturally maintained when taking the first step of walking.

Next, the middle portion bottom surface 2 is made flat with the ground, and corresponds to the range from the human body gravity line corresponding position (D) to the metatarsal head corresponding position (H).

The flat middle part bottom surface (2) is flat with the ground from the gravity line corresponding position (D) to the metatarsal head corresponding position (H) in order to hold the center of the human body without shaking during the foot contact, the second stage of the stance It was made. In addition, the second step of the stance, the foot contact timing, provides the ankle rocker function, which is the second of the three rocker systems of the ankle joint, such as rocking chair rocking motion. By making the natural S-line flexion of the spine, the impact on the spine can be alleviated when walking, making the waist feel stretched.

In addition, the front part bottom surface (3) is a portion that comes into contact with the ground at the end when walking, starting at the corresponding metatarsal head corresponding position (H) to form a gentle curve at a certain angle with the ground to the front end of the shoe sole 10 (10) It is.

Here, the front bottom surface angle (b), which is the angle that the front bottom surface 3 makes with the ground, is preferably given 10 to 15 degrees based on the metatarsal head corresponding position (H), which is the fourth of the standing position. When doing the heel off step and the toe off step 5, the soft lateral flexion prevents the force from reaching the tip of the toe located outside of the metatarsal head corresponding position (H). Induced to prevent foot disease. In this period, it also functions as the Forefoot Rocker, the third of the three rocker systems of the ankle joint, such as rocking chair rocking motion. The impact relief and pressure dissipation at the front helped to maintain the comfort, while also helping to increase the speed propulsion.

In other words, the bottom angle (b) of the front part was 10 to 15 degrees so that the force was naturally transmitted from the tip of the foot to the heel of the first step.

As described above, the rocker-type shoe sole 10 according to the present invention has a bottom surface that is in contact with the ground on the basis of the gravity line corresponding position (D) and the metatarsal head corresponding position (H) on the rear portion (1). ), Middle part bottom surface (2), and front part bottom surface (3), and the back bottom surface angle (a) is the range of the dorsal flexion motion of the ankle joint, and the front bottom surface angle (b) is the ankle joint We consider the range of the low-angle bending angle of.

[Top of shoe sole]

On the other hand, the shape of the inner sole surface of the shoe or the upper surface of the sole of the shoe that the foot directly touches has a great effect on the body while standing as well as walking. The present invention specifies the shape of the upper portion of the shoe sole together with the bottom surface of the shoe sole as described above so as to maintain comfort while standing and standing. However, the upper surface of the shoe sole may be applied to the insole, hereinafter will be described in detail through an embodiment in which the shoe sole and shock-absorbing insole is applied.

That is, the lacquer-type shoe sole 10 according to the present invention can be configured to include an impact relief insole 20, Figure 7 is a side cross-sectional view showing an embodiment of the lacquer-type shoe sole according to the present invention, impact relief 8 is a side cross-sectional view illustrating the coupling state of the insole.

The weight of the human body is placed in the middle position, when it is necessary to hold the arch of the foot. Medial calf refers to the arched part of the sole of the foot, which is the most biomechanically stable to distribute the weight of the body, and helps to reduce fatigue when standing or walking for a long time. To this end, the present embodiment maintains the position of the upper surface of the shoe sole corresponding to the center of the medial calf (hereinafter referred to as the 'inner medial center corresponding position') (E) in a convex arc shape so as to maintain the medial calf on the upper surface of the shoe sole. The opposing face 4 is formed. It acts on central gait, making the natural S-line flexion of the spine during ankle lacquer function, which is the second of the three lacquer systems of the ankle joint, relieving the impact on the spine while walking and making the waist feel stretched.

The convexity of the surface 4 opposite the arcuate medial arch of the arc shape affects the wearer's feeling of wearing the shoe or the front and rear tilt of the body. For example, when the height difference (h2) between the medial calf center corresponding position (E) and the position corresponding to the calcanic rough surface center on the upper surface of the shoe sole (hereinafter referred to as the 'corrugated rough surface center corresponding position') B is increased, the flat foot The height difference of the position corresponding to the metatarsal head on the upper surface of the sole of the shoe from the calcanic roughness center corresponding position (B) (hereinafter referred to as the metatarsal head corresponding position) (H ') If h1) is too large, the body can tilt forward.

Therefore, the height difference h1 between the calcaneus rough surface center corresponding position B and the metatarsal head corresponding position H 'is preferably 2 to 4 mm so that the body does not tilt forward and is inclined in consideration of the gravity line of the human body. In addition, the height difference h2 between the medial calf center corresponding position E and the calcanic rough surface center corresponding position is preferably 1 to 3 mm based on the normal foot, the foot foot and the flat foot. That is, the upper surface of the shoe sole has a height difference h3 between the medial calf center corresponding position E and the metatarsal head corresponding position H 'is preferably 3 to 7 mm, and has a concave and convex arc shape.

This height difference is important for the rear bottom surface 1 of the shoe sole described above to function. That is, if there is an abnormally lowered or elevated medial calf, such as flat feet or a forefoot foot, the lower fascia that is over-curved in the case of the forefoot foot is relaxed by a constant angle of the rear surface bottom 1, and in the case of flat foot The weakened lower fascia is compensated by giving a constant height around the medial medial arch center.

[Shoes insole]

At the heel contact of the stance, the most pressure is applied to the heel, or calcaneus. And during the heel lifting time is known to receive a lot of pressure in the metatarsal head position (H). Accordingly, in order to be able to disperse the pressure of the foot in the portion corresponding to the calcaneus and the portion corresponding to the metatarsal head in the skeleton of the foot on the upper surface of the rocker-type shoe sole 2 according to the present invention includes a shock-absorbing insole 20 Can be combined.

As illustrated in FIG. 7, a recess 11 is formed on the upper surface of the locker-type shoe sole 10 so as to be seated and coupled to the impact-resistant insole 20. Of course, it will be apparent that the impact relief insole 20 may be located on the upper surface of the shoe sole 10 in various ways without the recess 11 being formed.

The concave portion 11 is formed to be concave, leaving a predetermined portion at the upper surface of the locker-type shoe sole 10, the impact relief insole 20 is the outer shape and thickness to match the shape and depth of the concave portion 11 It is made of a shock-absorbing material while having, preferably a polyurethane (PU) material can be applied. In addition, in order to disperse the pressure concentrated in the portion corresponding to the calcaneus and the portion corresponding to the metatarsal head, it is preferable to thicken the portion and to thin the portion corresponding to the medial calf center.

The shock absorbing insole 20 is formed so that the upper and lower surfaces thereof correspond to the upper curve of the sole described above. In FIG. 8, reference numeral 4a indicates a surface opposite to the medial calf formed on the upper surface of the impact relief insole 20, so as to correspond to the surface 4 opposing the medial calf in the upper curve of the sole. It was formed. Of course, the other parts correspond to the upper curve of the sole.

[Design example]

9 is a schematic view illustrating the actual design of the lacquer-type shoe sole according to the present invention, for manufacturing a product having a total length of the lacquer-type shoe sole of 211.5 mm.

The bottom surface of the rear part was formed to have a gentle curve within the range of 5 to 10 degrees considering the dorsal flexion angle range of the ankle joint, and the front surface was 10 to 15 considering the range of the lower flexion angle of the ankle joint. A gentle curve was formed within the range of degrees.

On the other hand, the position of the gravity line of the human body of different people with different foot sizes shows that the position of the gravity line is located slightly ahead of the talus (aka 'radial bone') in the foot skeleton, so that the overall length is 16 ~ It appeared to be at 25% position, which was applied.

In addition, the height difference between the medial rough surface corresponding position and medial medial arch center corresponding position was 1.8 mm, and the height difference between the medial rough surface position and the metatarsal head corresponding position was 3.6 mm. Accordingly, the height difference between the medial calf center corresponding position and the metatarsal head corresponding position is 5.4 mm.

Reference numeral (C) shown in Figure 9 is a position corresponding to the front side of the calcaneus rough surface of the upper surface of the shoe sole, reference numeral (G) is a position that meets when extending the flat surface of the calcaneus rough surface of the upper surface of the shoe sole, (F) is the central part between the center corresponding position B of the longitudinal bone roughness, and the metatarsal head corresponding position H. FIG. (L1) is the sum of 27 and 31.5, 58.5, which is the same as the length (L2) 58.5.

From the position corresponding to the center of the calcaneus rough surface to a position corresponding to the front of the calcaneal rough surface, a horizontal line is connected, and the medial calf facing surface is the front position of the calcanic rough surface and the horizontal line from the position C corresponding to the front of the calcanic rough surface. Up to the matching position G in the phase.

From the central position (B) of the calcaneal rough surface to the front position (C) of the calcanic rough surface, which is the site where the medial calf facing surface 4 starts, the calcaneal end which is the range of the rear part bottom surface (1) If the horizontal line is made from the site position (A) to the front of the central location (B) of the calcaneus roughness between the human gravity line position (D), the human body is posterior due to the back surface bottom (1) angle (a) when standing. This is to prevent them from being distracted.

The locker shoe sole according to the present invention can be applied to shoe soles of nurse shoes that can be worn comfortably by nurses who move or stand frequently while working.

As described above with reference to the drawings illustrated for the rocker-type shoe sole according to the present invention, the present invention is not limited by the embodiments and drawings disclosed herein, but within the scope of the technical spirit of the present invention Of course, various modifications may be made by those skilled in the art.

1 is a graph showing the compressive force generated in the ankle joint as it moves forward during the standing phase in one cycle of walking.

Figure 2 shows the continuous flow of the three rocker system of the ankle joint (A) the heel rocker (Heel Rocker) (I) ankle rocker (A) Drawing of Forefoot Rocker.

Figure 3 is a photograph shown to explain the operation of the ankle joint appearing during the walking cycle, (A) the neutral position state of the ankle (B) is the dorsal flexion state of the ankle (C) shows the low side flexion state of the ankle.

4 is a graph showing the range of ankle joint movement during the walking cycle

5 is a view for explaining the rocker-type shoe sole according to the present invention in relation to the foot skeleton, (a) Figure is a plan view of the foot skeleton, (b) Figure is a side view of the foot skeleton, (c) the drawings the present invention Side view of the locker type shoe sole according to FIG.

Figure 6 is a side view of a rocker shoe sole according to the present invention.

Figure 7 is a side cross-sectional view showing an embodiment of a rocker-type shoe sole according to the present invention, a view showing a state that combines the impact relief insole.

Figure 8 is a side cross-sectional view showing a coupled state of FIG.

Figure 9 is a schematic view of a rocker shoe sole according to the present invention.

10 to 13 are prior art.

<Explanation of symbols for the main parts of the drawings>

1: rear bottom 2: middle bottom

3: front surface of the front part 4: surface facing the medial calf

A: position corresponding to the end of the calcaneus

B: center position of longitudinal bone roughness

C: position corresponding to the front of the longitudinal bone roughness

D: gravity line corresponding position

E: Correspondence position of inner medial arch

F: Center to the center of the calcaneus rough surface and the position of the metatarsal head

G: Locations where the flat surface of the longitudinal bone is extended

H, H ': Metatarsal head corresponding position

a: Rear bottom angle b: Front bottom angle

Claims (6)

The bottom surface, which is a part which touches the ground, is divided into a rear portion bottom surface (1), a middle portion bottom surface (2), and a front portion bottom surface (3), and the rear portion and the front portion are respectively ground. In the lacquer shoe sole at an angle to The rear portion bottom surface 1 and the middle portion bottom surface 2 are divided based on the gravity line corresponding position (D) of the human body, The middle portion bottom surface (2) and the front portion bottom surface (3) is divided based on the metatarsal head corresponding position (H) The bottom surface of the rear part (1) and the front surface of the front part (3) have a gentle curve, and the middle part bottom surface (2) has a flat surface with the ground, Rocker-type shoe sole, characterized in that the horizontal to the position (C) corresponding to the front of the longitudinal surface of the longitudinal bone (B) of the upper surface of the lacquer-shaped shoe sole. The method of claim 1, The upper surface of the lacquer type shoe sole, characterized in that the surface (4) is formed on the upper surface of the sole opposite the convex arc-shaped convex shape with a gentle curved surface to support the inner sole of the sole. The method of claim 2, The height difference h1 of the said longitudinal bone center corresponding position B and the metatarsal head corresponding position H 'is 2-4 mm, and the medial longitudinal center corresponding position of the surface 4 which opposes the said median calf. The height difference h2 between (E) and the longitudinal surface roughness center corresponding position (B) is 1 to 3 mm. delete 4. The method according to any one of claims 1 to 3, Further comprising a shock-absorbing insole 20 made of polyurethane (PU) as a shock-absorbing material, the shock-absorbing insole 20 is to disperse the pressure concentrated in the portion corresponding to the calcaneus and the portion corresponding to the metatarsal head The lacquer shoe sole, characterized in that the thickening of the portion and the portion corresponding to the inner calf center thin, the upper surface and the lower surface is formed in correspondence with the upper curve of the lacquer shoe sole 20. The method of claim 5, Concave portion 11 is formed on the upper surface of the lacquer shoe sole 10, The shock-absorbing insole 20 is coupled to the recess 11 by having an outer shape and thickness according to the outer shape and depth formed by the recess 11 formed on the upper surface of the lacquer shoe sole 10. Featuring lacquer shoe soles.

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