Plantar Plate

Abstract

The weight of the body is placed on the feet, which often places a burden on the feet. For example, when walking on hard surfaces such as asphalt or flooring in shoes, depending on the walking method, the weight of the body is placed on the feet, causing problems such as pain, swelling, and fatigue. We provide a footplate that corrects distortion of the feet and eliminates adverse effects on the pelvis and muscles. [Solution] A foot sole 1 is provided, which has an inner surface that comes into contact with the sole of the foot and an outer surface 2A that comes into contact with the ground, a sole portion 3 provided on the inner surface with which the sole of the foot comes into contact, a rising portion 4 that curves upward from the sole portion, and a protruding portion provided on the outer surface around the metatarsal bone.

Description

[Technical field]

[0001] The present invention relates to a footplate that is placed inside a shoe worn on a person's foot. [Background technology]

[0002] In the conventional technology, since people walk on two legs, the weight of the body is placed on the feet, which often puts strain on the feet. For example, when walking on hard ground such as asphalt or flooring, or on stairs, etc., in shoes, the weight placed on the feet is several times that of the body depending on the walking method, causing problems such as pain, swelling, and fatigue. In order to eliminate these problems, a footplate is sometimes provided inside the shoe. This footplate can reduce the above problems according to the length (thickness) of the individual's foot and can correct the body as a spacer. The footplate in this invention is intended to maintain a normal posture without putting strain on the foot.

[0003] Utility Model Registration No. 3241919 describes a footbed with a pad installed in the insertion part of a shoe, the pad being divided into an inner region and an outer region at the center. The inner region is the region where the big toe is located, and the outer region is the region where the little toe is located. The pad is also described as having an opening that allows the load received from the heel of the foot at a position where the ground contact part of the shoe corresponds to the outer region to exceed the load received from the heel of the foot at a position where the ground contact part of the footwear corresponds to the inner region. [Prior art documents] Utility model registration documents

[0004] [Patent Document 1] Utility Model Registration No. 3241919 Summary of the Invention [Problem to be solved by the invention]

[0005] As shown in Figure 5, the problem with the pelvic structure of Japanese people is that the pelvis is prone to tilt forward, and when the center of gravity is on the heel, the buttocks drop, the knees move forward, and the toes move away from the bottom of the shoe. In addition, when the pelvis tilts forward, the body weight is supported by the muscles, which results in the accumulation of pain, fatigue, etc. Furthermore, as shown in Figure 7, as the muscles age and fatigue, the arch of the sole of the foot tilts to the collapsed side like a collapsed bridge when weight is applied, making it difficult to stand vertically. As a result, when viewed from the heel side, the body is bent either to the outside or inside, and the correct weight cannot be applied, resulting in problems such as foot pain, swelling, and fatigue.

[0006] The purpose of this invention is to provide a function to stand the pelvis without tilting it in the pelvic structure of Japanese people, as shown in Figure 4. When the center of gravity of the heel is at the pelvis, the toes are evenly placed on the ground, so that the toes can be used freely without being separated from the bottom of the shoe. In other words, the center of gravity is the ankle on the heel, and the waist and the head, which is the heaviest part of the body, are placed on top of it, so that a pelvic structure that can support the body weight with bones is formed. Furthermore, as shown in Figure 6, when weight is applied due to muscle aging and fatigue, the arch of the sole of the foot does not tilt to the collapsed side like a collapsed bridge, and it becomes possible to stand vertically. As a result, the body can be properly loaded without bending to either the outside or inside when viewed from the heel side, and the balance of the trunk of the body begins to be adjusted from the sole of the foot, ankle, knee, waist, shoulder, neck, and jaw, and as muscle mass increases, posture improves and joint pain, stiff shoulders, etc. are improved. Further, the object of the present invention is to provide a sole plate capable of widely dispersing and absorbing the shock applied to the heel during walking, enabling stable movement of the center of gravity, and reducing fatigue while improving motor function. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, the insole is fitted inside a shoe worn on a person's foot, and has an inner surface that comes into contact with the sole of the foot and an outer surface that comes into contact with the ground, and is characterized by having a sole portion on the inner surface with which the sole of the foot comes into contact, a rising portion that curves upward from the sole portion, and a protruding portion on the outer surface around the midbone, which is the outer arch and inner arch of the foot, that has a unique shape and material. Effect of the Invention

[0008] According to this device, the pelvic structure has the effect of standing the pelvis upright, and when the pelvis is upright and the center of gravity is on the heel, the toes are evenly weighted on the ground, allowing the body to maintain a normal posture and improve motor function. This aims to correct the distortion of the foot and eliminate the adverse effects on the pelvis and muscles that were a problem in the past. [Brief description of the drawings]

[0009] [Figure 1] 1 is a perspective view of a footplate according to an embodiment of the present invention; FIG. [Diagram 2] FIG. 2 is a side view of the footplate shown in FIG. 1. [Diagram 3] FIG. 2 is a bottom view of the footplate shown in FIG. 1. [Figure 4] This is a reference diagram showing the front center of gravity. [Diagram 5] This is a reference diagram showing the rear center of gravity. [Figure 6] FIG. 11 is a reference diagram showing an example in which the load is not evenly distributed on the sole plate. [Figure 7] FIG. 13 is a reference diagram showing an example in which the load is evenly applied to the sole plate. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] The sole plate 1 according to this embodiment will now be described with reference to Figures 1 to 3. For convenience, parts having the same functions will be given the same reference numerals and their description will be omitted.

[0011] This embodiment relates to a sole plate 1 that is provided inside a shoe worn on a person's foot. The sole plate 1 is composed of an upper sole plate 1A that contacts the user's foot and extends from the heel to the forefoot of the shoe, a middle sole plate 1B that is bonded or integrally formed below the upper sole plate 1A and extends from the toe to the heel of the shoe, and a lower sole plate 1C that is bonded or integrally formed below the middle sole plate 1B and extends from the metatarsal bone to the heel of the shoe.

[0012] The upper sole plate 1A is made of a material having cushioning properties, such as cotton, polyester fiber, nylon fiber, and carbon fiber knitted or woven fabrics. The middle sole plate 1B is made of a thermosetting resin foam such as polyurethane having flexibility, a thermoplastic synthetic resin foam such as ethylene vinyl acetate copolymer (EVA), and a rubber material foam such as butadiene rubber or black rubber. When using these foams, it is possible to generate hardness differences by changing the foaming ratio. The lower sole plate 1C is made of a thermoplastic elastomer (TPE), a thermoplastic polyester elastomer (TPEE), an ethylene-vinyl acetate copolymer (EVA), and a silicone elastomer having flexibility, elasticity, abrasion resistance, and chemical resistance. The upper sole plate 1A, the middle sole plate 1B, and the lower sole plate 1C are provided in such a way that the entire sole plate 1 can be detached from the corresponding shoes, or are fixed to the shoes.

[0013] In addition, the sole plate 1 has been described as being composed of an upper sole plate 1A, a middle sole plate 1B, and a lower sole plate 1C, and has an outer surface 2A which is the surface that comes into contact with the ground, and an inner surface 2B which is different from the outer surface 2A and is the surface that comes into contact with the user's foot.

[0014] The inner surface 2B has a sole 3. The sole 3 is the part that the bottom (sole) of the foot comes into contact with when the user inserts the shoe into the sole plate 1, and is configured so that the entire sole 3 is evenly loaded. When a load is applied due to muscle aging and fatigue, the arch of the sole does not tilt to the collapsed side like a collapsed bridge, and it becomes possible to stand vertically. As a result, when viewed from the heel side, the body can be loaded correctly without bending either to the outside or inside, and the trunk balance begins to be adjusted from the sole of the foot, ankle, knee, hip, shoulder, neck, and jaw, and as muscle mass increases, posture improves and joint pain, stiff shoulders, etc. are alleviated.

[0015] The sole plate 1 has a rising portion 4 formed by curving upward from the sole portion 3. The rising portion 4 adopts a cup-in shape having an inner rising portion 4A located on the big toe side (inner side of the foot) and an outer rising portion 4B located on the little toe side (outer side of the foot), so that the sole plate 1 fits the foot reliably. The rising portion 4 has a peripheral portion 4C formed to follow the shape of the sole of the user's foot, a tip 4D on the toe side of the user's foot in the peripheral portion 4C, and a rear end 4C on the heel side of the user's foot in the peripheral portion 4A. In other words, the rising portion 4 is formed along the peripheral portion 4C via the rear end 4E on the heel side of the user, with the tip being between a position 4F on the peripheral portion 4A corresponding to the metatarsal bone of the sole portion 3 and a position 4G on the peripheral portion 4A corresponding to the metatarsal bone of the sole portion 3. Therefore, it contacts the side and heel of the user's foot evenly. Furthermore, the shock applied to the heel when walking can be widely dispersed and absorbed, enabling stable movement of the center of gravity, thereby reducing fatigue while improving athletic function.

[0016] As shown in Fig. 3, the outer surface 2A is composed of a middle sole plate 1B extending from the toe to the heel of the shoe, and a lower sole plate 1C extending from the midfoot to the heel of the shoe, bonded or integrally formed below the middle sole plate 1B. Specifically, the lower sole plate 1C extends from the heel side to the heel side, starting from a line connecting a position 4D on the periphery 4A corresponding to the metatarsal bone of the sole 3 and a position 4E on the periphery 4A corresponding to the metatarsal bone of the sole 3.

[0017] As shown in FIG. 2, the outer surface 2A has a protruding portion 2C around the midbone. This protruding portion 2C is arch-shaped when viewed from the side. This arch shape is gently inclined toward the heel. By adopting this structure, the center of gravity moves to the heel, and as shown in FIG. 4, when the center of gravity is at the heel, the toes are evenly placed on the ground, so the toes can be used freely without being separated from the bottom of the shoe. In other words, the center of gravity is located at the ankle on the heel, and then the waist and the head, which is the heaviest part of the body, are placed on top of that, so a pelvic structure that can support the body weight with bones is formed. Furthermore, it absorbs shock when landing, and not only functions like a spring as a propulsive force when walking, but also improves blood flow with the effect of pumping, thereby eliminating swelling in the feet and promoting fatigue reduction.

[0018] (Effects of this embodiment) In this embodiment, the pelvis structure has the effect of standing the pelvis, and when the heel is the center of gravity in the upright state, the toes are evenly loaded on the ground, allowing the user to maintain a normal posture and improve motor function. This aims to correct the distortion of the foot and eliminate the adverse effects on the pelvis and muscles that were a problem in the past.

[0019] The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit and technical concept of the present invention.

[0020] In addition, in the above description, when the external dimensions or sizes are described as "same", "equal", "different", etc., the description does not mean in the strict sense. In other words, "same", "equal", and "different" mean "substantially the same", "substantially equal", and "substantially different", allowing for design and manufacturing tolerances and errors.

[0021] In addition to the above, the above-mentioned embodiments and the methods according to the modifications may be appropriately combined and used. Although not illustrated individually, the present invention may be implemented with various modifications without departing from the spirit and scope of the present invention. [Explanation of symbols]

[0022] 1 Plantar plate 1A Upper plantar plate 1B Middle plantar plate 1C Lower plantar plate 2A outer surface 2B Inner surface 2C Protrusion 3. Sole 4. Rising section 4A Inner rising part 4B Outer rising part 4C Periphery 4D tip 4E Rear end 4F position 4G location

Claims

1. A foot sole provided inside a shoe to be worn on a person's foot, The shoe has an inner surface that contacts the sole of the foot and an outer surface that contacts the ground, a sole portion provided on the inner surface with which the sole of the foot comes into contact; A rising portion formed by curving upward from the sole portion; A protrusion is provided on the outer surface around the midbone of the foot; A foot plate comprising:

2. The footplate according to claim 1, The raised portion is formed as a peripheral portion formed to follow the shape of the bottom of the user's foot, a tip end of the peripheral portion on the toe side of the user's foot, and a rear end of the peripheral portion on the heel side of the user's foot.

Images