JP2003199603A - Foot form evaluation method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a foot form evaluation method for establishing a normal standard when producing a sole/insole for footwear. <P>SOLUTION: In the sole or insole for footwear, the dimension of a base sole and the form of a projection in contact with a metatarsus are determined by measuring an outer peripheral length passing a point A of a center of gravity of a toe, a crural side metatarsal point A' and a sural side metatarsal point A", an outer peripheral length passing a navicula bone rough surface B' of a foot and a fifth metatarsus rough surface B", a full length C, a full width D and a distance E from the point A of the center of gravity of the toe to a heel point F and the form and the height of the projection on the sole or insole are classified in details from the three points of cases of a normal foot, a pes valgus or a coxa vulgus and a pes varus or a coxa varus further from the presence of overlapping of a first phalanx and a second phalanx. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a footwear insole or sock (so-called "healthy inner") conforming to the unevenness of the sole of a person, and a footwear insole or sock. The present invention relates to a footprint evaluation method for performing the method, and an organization for computerizing the method. 2. Description of the Related Art Conventional off-the-shelf footwear lacks rationality in use (easiness of wearing and walking) because of emphasis on appearance. In particular, since the inner surface is almost flat, the adhesiveness to the sole of the foot deteriorates, and the foot easily slips in the toe direction in the footwear or the inner surface, and this phenomenon is particularly remarkable in shoes with higher heels. This causes a wide variety of foot pains. Therefore, insoles with irregularities according to the shape of the soles have been devised, but these are intended to absorb and mitigate the impact on the feet during walking using the cushions of the insole, The mechanism and function of the feet and the body do not always match. [0003] In the conventional production of footwear for hallux valgus, it is necessary to measure the footprint for each customer with a measure or a dedicated instrument, and it takes time and cost to order and manufacture. It is hard to say that it has become widespread, and has particularly hindered the correction and prevention of foot deformity diseases such as hallux valgus. [0004] As an insole for footwear, for example, Japanese Patent Application Laid-Open No. Hei 9-140405 discloses an insole for preventing hallux valgus. On the other hand, as shown in FIG. 8, the insole manufactured using the footprint evaluation method of the present invention is a thumb stabilizing recess 1, an arch support 2, a heel stabilizing recess 3,
It has a metatarsal support projection 4. By the way, the foot forms a curve in the front-back direction (vertical arch) and a curve in the width direction (horizontal arch) centering on the arch, and these curved shapes serve as a shock absorbing device for absorbing and mitigating the impact applied to the foot during walking. It is known to work. Hallux valgus is unable to hold these arches properly and causes severe pain at the base of the thumb during walking. According to the conventional example, these arches are forcibly formed by the arch support projection 2 and the metatarsal support projection 4, and the arch support projection 2 and the metatarsal support projection 4 are formed. The bump cushion absorbs the impact of walking and alleviates pain. However, such forcible formation of the arch did not contribute to the development of the original arch. On the other hand, Japanese Unexamined Patent Publication No. 9-28409 discloses a shoe sole in which three portions, an upper medial portion and an outer medial portion excluding a heel and a toe, are made higher or harder than other portions. I have.
Here, the arch is lower than the others, so you can expect a natural arch formation.However, since the three raised and hardened parts are flat, they do not adhere exactly to the soles, The feet are not stable inside and do not correspond well to complex-shaped footprints with deformed diseases. In addition, footwear with uneven insole needs to be fitted to the user's last, so that a method of measuring each individual last in detail and custom-ordering is adopted. Time and cost. Therefore,
By standardizing footwear with irregularities on the inner sole or insole of the shoe into a foot shape (for example, the size of conventional footwear,
There is a long-awaited need to establish a standard such as E-type and 4E-type, and to establish a system which is generally easily available. SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to form a footprint of a natural body by properly forming an original footprint of a user. It is an object of the present invention to provide a footwear sole and an insole that can prevent a problem, and a foot type evaluation method and an information organization for establishing a standard in manufacturing the sole or the insole. In addition, footwear is always purchased after oneself goes to a shop or the like, matches his / her foot, and checks the comfort. That is, in the current system, the footwear must be finally adjusted in accordance with the user's selection. The present invention eliminates these defects and enables (1) standardization of size evaluation and (2) transmission of all information, so that footwear can be easily used even by distant people and without the need for physical adjustment. To be able to order. [0009] The sole or insole for footwear according to the present invention, which has been made to solve the above problems, has a sole from the upper part of the second metatarsal to the upper part of the fifth metatarsal. It has a metatarsal contact ridge that is a gentle ridge made of a material of suitable hardness that is in contact and has the highest height at the second distal metatarsal. Another footwear or insole for footwear according to the present invention is the above-mentioned bottom or insole having a metatarsal contact ridge, wherein the medial half of the cuneiform bone, the medial half of the scaphoid, and the talus are included. Medial ridge in contact with the lower part, lateral ridge in contact with the posterior part of the fifth metatarsal bone, lateral part of the cubic bone and anterior calcaneus, and posterior calcaneal contact ridge in contact with the posterior calcaneus and the outer edge of the calcaneus Part of
Any one or more combinations of gentle ridges made of a material having an appropriate hardness are further added, and the surface surrounded by these ridges including the metatarsal contact ridge is entirely formed. Is characterized by having a concave shape. Another sole or insole for footwear according to the present invention may be a sole or insole having only a metatarsal contact ridge or a metatarsal contact ridge, as well as an inner ridge, an outer ridge and a calcaneus. At the bottom or insole with contact ridges,
The side of the toe on the side of the second toe and the side of the second toe on the side of the first toe are located in such a position as to be sandwiched between the first toe and the second toe. An extended rod-like, first metatarsal opening ridge that increases the first metatarsal opening, and a gentle ridge made of a material having an appropriate hardness is further added.
It is characterized in that the surface surrounded by these raised portions has a concave shape as a whole. The method of evaluating a footprint according to the present invention is characterized in that the outer circumference passing through the center of gravity, the tibial metatarsal point and the fibular metatarsal point, and the outer circumference passing through the rough scaphoid surface and the fifth metatarsal surface of the foot By measuring the length, the total length, the total width, the distance from the center of gravity to the heel point, the bottom or insole, the size of the base and the shape of the metatarsal contact ridge, determine the metatarsal contact ridge. Regarding the shape and height of the raised portion of the bottom or insole including the above, from the three viewpoints of normal foot, valgus foot or valgus crotch, varus foot or valgus crotch, A footprint evaluation method for producing the footwear sole or the insole, which is further classified based on the presence or absence of overlap between the toe and the second toe, is characterized. [0013] The insole here means a base and a raised portion, which is used by being attached to the insole of the completed footwear. The base is the whole sole excluding the raised portion of the insole. Refers to a planar part that spans In addition, the bottom refers to the bottom part of the footwear in which the insole and the footwear are integrated. Hereinafter, the bottom or the insole will be described simply as the insole. DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 show a state in which an insole according to the present invention is attached to footwear, a relation between an insole and a foot skeleton, and a perspective view of the footwear in which the insole is attached, respectively.
As shown in FIG. The metatarsal contact ridge 1 is a gentle ridge that contacts the sole from the second upper metatarsal to the upper fifth metatarsal, and its height is the second distal metatarsal. Made to be the best. Since this gentle bulge does not contact the first metatarsal, the first toe is stabilized at a lower position than the other four toes, and facilitates plantar flexion and kicking of the first toe. The medial ridge 2 contacts the medial half of the wedge bone, the medial half of the scaphoid, and the lower part of the talus. The lateral ridge 3 is in contact with the rear part of the fifth metatarsal bone, the lateral part of the cubic bone, and the front part of the calcaneus. The rear contact ridge 4 of the calcaneus is in contact with the posterior calcaneus and the outer edge of the calcaneus. The first metatarsal open ridge 5 is the second toe of the first toe.
The side of the toe and the side of the first toe of the second toe are in contact with each other, and the first
It is a bar-shaped protruding portion that is located at a place where it is sandwiched between the toe and the second toe, and extends in the lateral direction of the first and second toes. The metatarsal contact ridge 1, the medial ridge 2,
The wide surface surrounded by the five ridges of the lateral ridge 3, the posterior calcaneal contact ridge 4, and the first metatarsal open ridge 5 is 5
Since it is relatively lower than the three ridges, it is concave as a whole. Since the metatarsal contact ridge 1 contacts the metatarsal bones of the second to fifth toes and does not contact any part of all the toes, all the toes can move freely in the footwear. it can. During walking, the first toe is in a state of plantar flexion (hereinafter, plantar flexion is defined as 0 ° when the lower leg and the foot are at a right angle, from which the toes move toward the floor). The vertical arch is formed naturally. In addition, since the first toe is stable at a low position, a kicking operation toward the rear of the first toe is promoted, and as a result, a natural formation of the lateral arch is promoted. Furthermore, since the first toe is stabilized at a low position, slippage in the toe direction during walking is prevented. The four ridges except the first metatarsal open ridge 5 are in contact with the sole, and a curved portion is formed without arch, so that a concave portion surrounded by the five ridges of the sole is formed. Is maintained stably. In addition, by walking, the muscles of the concave portions are strengthened, which helps to recover and strengthen the formation of the deformed vertical arch. The outer raised portion 3 functions as a guide so that the toe can easily land on the ground according to the movement of the center of gravity of the body after the heel has landed. The rear contact ridge 4 of the calcaneus allows the heel to land vertically on the ground, and at the same time, makes the heel and the rear part of the shoe better adhere. The medial ridge 2, the lateral ridge 3 and the posterior calcaneal contact ridge 4 are valgus feet and valgus crotch that require correction.
If there is no varus foot or varus crotch, it may be omitted. Also,
Depending on the shape of the foot, any one or a combination of a plurality of these raised portions may be appropriately selected and attached. The first metatarsal open ridge 5 is necessary when the first toe and the second toe have a severe hallux valgus, as described in the following footprint evaluation method. Omitted for the footprint of. When the footwear with the insole according to the present invention is worn, the center of the foot is on a straight line connecting the heel and the third toe, and the center of gravity is near the middle between the first and second toes. In addition, since the knee femoral head and the hip joint are aligned, the force of kicking the ground surface during walking can be easily exerted, and at the same time, the pain due to static deformation and metamorphosis of the legs can be minimized. The material of the raised portion is preferably a relatively hard material. This is because the main object of the present invention is not to absorb the impact received by the foot during walking, but to strengthen the sole of the foot and restore the original form of the foot. Suitable materials include, for example, plastic, cork, plate rubber, and sponge rubber. Also, footwear,
It can be of any type, such as shoes, slippers, sandals, sandals, tabi, etc. In the case where the footwear with the above-mentioned insole is provided to the consumer, these are used in accordance with standard specifications such as conventional footwear size, 3E type, 4E type, etc. Standard standards are called "standards"). Therefore, for the purpose of making a standard, we devised a method of giving an objective evaluation to the last. FIG. 4 shows the elements for making this standard. FIG. 4 shows that the insoles are roughly classified according to gender, mode of use, and human type. The Oriental type is a foot type in which, among all toes, the first toe has a longer characteristic, and the Western type is a second or third toe having a longer characteristic than other toes. As is apparent from FIG. 4, the shape of the footprint is various even if only three elements are considered. Furthermore, it is not easy to objectively classify a foot type having a complicated deformity disease. In the present invention, various types of footprints, with particular emphasis on the function of the foot, to promote the natural formation of the foot form,
Evaluation and classification were used. Basic Operation for Evaluation of Footprint (Operation 1) Sit quietly in a chair. At this time, the height of the chair is
It is almost the same height as the back of the knee when standing. (Operation 2) When sitting down, the chest is slightly stretched, the back is not rounded, and the left and right shoulders and the center of the shoulder are lightly released. Also, the head (face) is slightly tense on the cervical muscles so that the chin is pulled downward without facing downward. (Operation 3) The knees are bent with the thighs as horizontal as possible. At this time, place the center of the shin vertically on both sides, and gently place your feet on the paper placed on the floor. (Operation 4) Be careful not to move the placed foot and knee as they are, stand on paper, and draw a contour diagram of the foot. (Operation 5) Further, the shape of the last is inspected, and α and β are measured. (Operation 6) Finally, release the foot from the floor, refer to the footprint drawn on the paper, and refer to the positions and lengths A to F (length E) shown in FIG.
Is measured. (Operation 7) The measurement of the longitudinal axis lid (the inner ridge portion Fig. 2 (2)) is performed by drawing the depth of the ridge portion with respect to the plane, such as a flat shape, a 45 ° slant, a 30 ° slant, etc. Get. First, the length and width of the base, that is, the dimensions of the base, are determined based on the total length C and the total width D among the items measured from the above operation 6. Further, the shape of the metatarsal contact protruding portion 1 is determined from the measurement points in the above operation 6. The lateral length and shape of the metatarsal contact ridge 1 from the outer circumference B and the distance E from the center of gravity A and the heel point to the center of gravity of the metatarsal contact ridge 1 throughout the insole can be accurately determined. Determine the position. The outer circumference passing through A and B can be determined as the intersection of the center of gravity line, which is an extension of a straight line connecting the center of the patella and the center of the ankle joint (FIG. 5). In the insole according to the present invention, since the shape and position of the metatarsal contact ridge 1 are the most important points for fitting the insole to the foot, it is necessary to take a standard shape that the user satisfies in this regard. There is. This is also the most significant point of the standardization effect. Next, by checking the shape of the last in operation 5,
Furthermore, the last of the foot is evaluated from three viewpoints: normal, valgus and valgus, varus and varus. As a result, the shapes and heights of the metatarsal contact ridge 1, the medial ridge 2, the lateral ridge 3, and the calcaneal posterior contact ridge 4 are classified into 1, 2, 3, and 4 listed below. 1. Classification of the metatarsal contact protuberance 1 (1) A case where there is a groove (horizontal axis groove) between the base of the first toe and the second toe on the sole side while lying in a prone position (crawl). Since this is a normal state, the metatarsal contact ridge 1 determined by the above method based on the center of gravity A, the outer periphery B, and the distance E from the center of gravity to the heel point is used as it is. (2) A case where there is no horizontal groove and there is a remarkable convex bulge on the sole from the first to fifth toes, that is, a case where a lateral arch which should be concave is convex. The height of the metatarsal contact ridge 1 is increased to encourage the formation of a lateral arch. In the following classification methods 2 to 4, the foot is (1) normal,
Depending on whether it is (2) valgus foot or valgus crotch, or (3) varus foot or valgus crotch, the shape and height of the inner ridge 2, the outer ridge 3, and the calcaneal contact ridge 4 are determined. It is a way to change. (1)
(3) is distinguished from the inner and outer angles α and β between the heel and the floor shown in FIG. 6 as follows. (1) Normal case. The inside and outside angles between the heel and the floor are equal (α = β). (2) In the case of valgus foot or valgus. The angle between the heel and the floor is larger outside (α <β). (3) In the case of clubfoot or clubfoot. The angle between the heel and the floor is larger on the inside (α> β). However, if there is no valgus foot or valgus or varus foot or valgus that requires correction, it is not necessary to particularly attach the inner ridge 2, the outer ridge 3, and the calcaneal contact ridge 4. And may be omitted. Alternatively, any one of these ridges
One or a plurality of combinations may be appropriately selected and attached. 2. Classification of inner ridge 2 (1) Normal case. The height of the inner ridge 2 is reduced and the depth is reduced. (2) In the case of valgus foot or valgus. The height of the inner raised portion 2 may be increased to increase the depth. The height is higher at the front of the foot than at the rear. (3) In the case of clubfoot or clubfoot. The height of the inner ridge 2 is increased and the depth is increased. The height is higher at the back of the foot than at the front. 3. Classification of relative height of inner ridge 2 and outer ridge 3 (1) Normal case. The height of the inner ridge 2 and the outer ridge 3 is the same. (2) In the case of valgus foot or valgus. The height of the outer ridge 3 is higher than the height of the inner ridge 2. (3) In the case of clubfoot or clubfoot. The height of the inner ridge 2 is higher than the height of the outer ridge 3. 4. Classification of posterior contact ridge 4 of calcaneus (1) Normal case. The inner and outer heights of the posterior contact ridge 4 of the calcaneus are the same. (2) In the case of valgus foot or valgus. The inside height of the posterior calcaneous contact ridge 4 is higher than the outside height. (3) In the case of clubfoot or clubfoot. The outer height of the posterior contact ridge 4 of the calcaneus is higher than the inner height. In the case of severe hallux valgus, the following classification is added in addition to the above four classifications. That is, Classification based on the overlap between the first and second toes (1) When the first and second toes do not overlap. Since this is a normal state, the shape of the insole is determined from the above four classifications. (2) In the case of severe hallux valgus in which the first and second toes overlap. In addition to the metatarsal contact ridge 1, the medial ridge 2, the lateral ridge 3, and the calcaneal posterior contact ridge 4, a first metatarsal open ridge 5 is added. The first metatarsal open ridge 5 is the second toe of the first toe.
The side of the toe and the side of the first toe of the second toe are in contact with each other, and the first
It is located at a place where it is sandwiched between the toe and the second toe, and is a rod-shaped ridge extending in the lateral direction of the first and second toes, and is made of the same material as the other four ridges and is smoothly connected. Good. By attaching the first metatarsal open ridge 5, the first metatarsal opening is increased, the first toe and the second toe are separated,
The first toe stabilizes in a normal position. [0042] A prototype of footwear to which the insole according to the present invention was attached was made and tried on. As a result, the ease of putting on and walking was improved as compared with conventional footwear, and the pain was also improved accordingly. The specific effects were as follows. (1) It promoted the improvement of hallux valgus, hallux valgus, open foot, vertical arch, horizontal arch, etc. (2) When you wear high-heeled footwear, slide forward in the direction of your toes, kick the ground with your feet, run suddenly, walk suddenly, change direction suddenly, Prevented slipping in the direction of the toes. As a result of the individual experiment, there was a remarkable effect especially on the metatarsal contact ridge. That is, the valgus valgus where the first toe is slightly above the second toe, or the open leg with the deformed valgus of all the toes improved in 3 to 6 months. In addition, when the metatarsal contact ridge and the lateral ridge were merged, the pain of the knee joint was eliminated along with the hallux valgus. (3) Since the lower limbs are stable, not only the lower back but also general health can be expected. (4) By standardizing the footprint evaluation method according to the present invention,
Footwear equipped with an insole for pain control footwear of the present invention,
It will be widely available to consumers. If the variety of the insole and the variety of the insole are expanded and spread in this way, the added value of the footwear will increase and the consumer will be more satisfied. FIG. 1 is a three-view drawing in which the insole for footwear according to the present invention is attached to footwear. The insole is formed by a total of five gentle ridges: a metatarsal contact ridge 1, a medial ridge 2, an outer ridge 3, a calcaneal posterior contact ridge 4, and a first metatarsal open ridge 5. ing. As the material of the raised portion, for example, a material such as plastic, cork, plate rubber, sponge rubber, or the like having a hardness enough to hold the original shape of the foot is suitable. Regarding the dimensions and form of the insole, the outer peripheral lengths A and B, the total length C, the total width D, the distance E from the center of gravity to the heel point, the dimensions of the base from five items, and the shape and height of the metatarsal contact ridge 1 The shape and height of the five raised portions are determined from the three viewpoints of normal foot, valgus foot or valgus crotch, varus foot or valgus crotch, and the first toe. It can be manufactured by classifying in further detail based on the presence or absence of the overlap of the second toe. Further, a ridge and a base standardized in advance by the above-mentioned footprint evaluation method are manufactured, and several ridges suitable for the size and shape of the customer's foot are combined and ordered and sold together with the base. it can. FIG. 7 shows a two-way information flow between a customer, a seller, and a manufacturer. When a customer places an order for footwear, the appearance of the footwear can be selected and determined by using an advertisement or the like in the conventional manner. Similarly, the form of the insole can be selected from the standard products for each customer. In other words, by standardizing the shape of the insole, it becomes possible to provide it to the customer quickly and at low cost. Next, a production / sales system for footwear with the insole according to the present invention will be proposed. For example, the outer skin and insole (elevation and base) of footwear increase their added value by being processed and installed by the dealer, and by exchanging information between manufacturers, sellers, and customers via the Internet, etc. Regardless of the proximity of the area, the time required for customers to visit the store can be shortened, and the rationalization can be achieved economically, and, as a result, the expansion of the overall business transactions of the dealer can be promoted. Further, since various kinds of information on the foot can be collected at a necessary portion, it is possible to easily improve and improve the product, and it is also possible to measure the satisfaction of the customer's comfort. That is, a product that tends to be a manufacturer's intention can be provided as having a quality from the consumer's standpoint. These have been performed experimentally on certain types of footwear and have yielded very smooth and good results.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a three-view drawing in which footwear insoles are attached to footwear, (A) is a plan view, (B) is a side view as viewed from the fifth toe side, (C) ) Respectively show side views as seen from the first toe side. FIG. 2 is a plan view showing the relationship between the foot skeleton and the four raised portions of the insole. FIG. 3 is a perspective view when the insole is attached to footwear. FIG. 4 is a table summarizing the elements made in a standard manner. FIG. 6 is a diagram showing measurement points for evaluation. FIG. 6 is a rear view of the foot, showing the inclination of the calcaneus and the Achilles tendon. FIG. 7 is a schematic diagram showing the flow of bidirectional information among customers, sellers, and manufacturers. FIG. 8 is a plan view of a conventional insole for hallux valgus measures [Description of reference numerals] 1... Metatarsal contact protruding portion 2... Medial protruding portion 3... Outer protruding portion 4. Metatarsal open ridge A: Toe center of gravity point A '... Tibial metatarsal point (first toe metatarsal joint indirect gap) A "... Fibular metatarsal point (fifth toe metatarsal joint indirect gap) B: center of gravity point of foot base B ': shin-side root start point (rough surface of scaphoid of foot) B ": fibular root start point (fifth metatarsal surface of foot) C: full length; heel point From longest toe to (Toe point; tip of the first toe or tip of the second toe) D: total width; length between A'-A "E: distance from the center of gravity to the heel point; Length F: Heel point (heel of the heel) α: Angle between the inside of the heel and the floor β: Angle between the outside of the heel and the floor μ: Incline of the heel and the Achilles tendon

Claims (1)

Claims: 1. The outer circumference passing through the center of gravity, the shin metatarsal point and the calf metatarsal point in order to determine the size of the footwear sole or the base of the insole and the shape of the metatarsal contact ridge. A foot type evaluation method for manufacturing a footwear sole and a footwear insole, comprising measuring a total of five items including a length, a total length, a total width, and a distance from a center of gravity to a heel point.