KR100955038B1 - Last for manufacturing a shoe - Google Patents

Abstract

The present invention relates to a shoe manufacturing last, the object of the present invention is to provide a shoe with good fit and comfortable by making a shoe using the last of the shape most similar to the shape of the human foot.

In order to achieve the above object, the present invention looked at the pressure and shape change of the foot appearing when walking through the biomechanical data of the foot, and accordingly, the configuration of the present invention is characterized by the last (10) shaped as the shape of the human foot as it is In detail, the first toe part 11 formed to be rounded forward and upward in correspondence with the shape of the big toe of the human body at one end of the forefoot 21 of the last 10 for shoe manufacturing, the second to fifth at the tip of the forefoot of the last Concave-convex portion 12 corresponding to each protruding shape of the toe, second protruding portion 13 corresponding to a bone protruding outward from the inner surface of the middle foot of the human body on the inner surface of the middle foot 22 of the last, the last The first bony part 14 corresponding to the bone with a groove formed in the arch shape at the bottom of the middle foot of the human body on the medial foot bottom of the toe and the midfoot between the forefoot and the midfoot of the last. The second bone portion 16 in the lateral direction corresponding to the bone with a groove recessed at the boundary, the third bone portion 15 corresponding to the bone with a groove between the third and fourth toes between the forefoot portion and the midfoot portion of the last, and The third protrusion 17 corresponding to the bone protruding upward from the instep of the human body may be selectively formed in the instep of the last.

Description

Last for shoe manufacturing {LAST FOR MANUFACTURING A SHOE}

The present invention relates to a last for shoe manufacturing, which makes it possible to manufacture a variety of shoes, such as shoes and sports shoes for leisure to suit the shape of the human foot.

In general, the last used to manufacture shoes is in the shape of a foot, the material is made of metal, wood or synthetic resin.

When manufacturing shoes using last, the shoe sole is attached to the lower circumference of the upper with the upper forming the outer shape of the shoe on the outer surface, and then manufactured by separating the last. Since the space corresponding to the shape of the formed is a shoe that can be worn on the foot is manufactured.

However, since the last last is manufactured to show the overall shape of the foot, omitting specific curved parts such as toes or astragalus in the foot of the human body, when shoes are first purchased and worn, There is an uncomfortable problem because it does not fit well.

One of the reasons why the last last has been manufactured in the form of a rough foot pattern is that the manufacturer has maintained a mass production method. As a result, the fitting is far from the importance of fitting and is designed to be the most comfortable and similar to the shape of the foot. Until now, such a last is convenient for manufacturing shoes, and it is not made from the customer's point of view. Although it was manufactured in consideration, the use of such last caused the inconvenience described above.

In biotechnological terms, the foot consists of 23 pairs of bones, muscles, joints, ligaments, nerves, and blood vessels and can be divided into forefoot, midfoot, and posterior parts. The forefoot is composed of five metatarsal bones including the toes. The metatarsal foot has an arched structure, and the posterior foot is composed of a calcaneus, a heel bone, and is known to be subjected to very high pressure in the forefoot and the foot during walking.

In the case of metatarsal bones, the metatarsal bones 1 to 3 corresponding to the third toe are connected to the talus, and the metatarsal bones 4 to 5 corresponding to the fifth toe in the fourth toe are calcaneus. Is connected to each other has a structure that can be connected to the tibia (脛 骨).

These metatarsal bones are supported by ligaments and nerves to form arches, and the plantar fascia consists of the soles of the soles of the feet. And it is possible to disperse the shock absorber and the weight of the body when walking.

However, the foot may suffer from diseases such as plantar fasciitis and interstitial neuroma due to exposure to a large amount of impact every day, and such a disease may be caused by inflammation of the plantar fascia supporting the arch or pain due to compression of nerves between the metatarsals. As a disease, it can be said to be caused by wearing shoes that do not fit the shape of the foot.

Recently, studies on shoes have been conducted on the insoles supporting the arch or the pads of the forefoot and the forefoot where high impact occurs. In the case of insoles inserted into shoes, studies on the effects of the heel, forefoot, and arch are mostly conducted on the impact relief and foot comfort.

For example, Jason Tak-Man et. The finite element model used in the study of al. (2007) can confirm the movement path of pressure generated during walking as a cross section, and the pressure of the entire foot decreases because the pressure can be distributed through the support of the arch. see. It was also found that the foot was less deformed by supporting the arch under constant pressure (G. F. Kogler et. Al. 1995). In addition, when examining the pressure applied to the soles of walking, the pressures of the forefoot and the forefoot were the highest (Lee Chang-min et. Al 2005).

Based on this, many studies have been conducted on shoes, and other studies have shown that there are differences in materials or research methods, but they have common contents that can provide foot comfort through the site of pressure generation and arch shape. This is mostly about insoles that are inserted into shoes, but the study on the last has not been performed.

Accordingly, in the case of the last last, the shape of the sole roughly shows the shape of the foot, but the shape of the sole and the shape of the toe and the foot are not shown in detail. Foot discomfort occurs early in the wear.

In order to solve the problem of the last, to solve the discomfort of the foot by using the insole using the support for the arch or the pressure reducing pad of the forefoot and the forefoot, but the shape of the last is not the same as the shape of the insole and midsole It was because of the problem that the inconvenience is aggravated by being made more.

In order to improve the above problems, it is necessary to increase the fitting force while the inner space of the shoe is most similar to the shape of the foot. Therefore, the present inventors manufacture the last based on the anatomical and biomechanical data of the foot. To achieve the present invention, according to the object of the present invention is to manufacture a shoe using a last of the shape most similar to the shape of the foot of the human body to provide a comfortable and comfortable shoes for the last To provide.

The present inventors, in order to increase the fitting force of the shoe except for the case that the last type is different according to the type of shoes, and inline skating or cycling shoes for which the foot is fixed inside the shoe, while the shoe is in close contact with the sole of the shoe In order to realize such a part, all shoe components must be made in the same shape.

At this time, when the last manufacturing when the shape of the protruding part of the astragalus formed in the ankle part of the human body as it is, it was found that the shape of the shoe is subtly changed and found that the above object could not be sufficiently achieved. Focusing on the shape of the toe and sole arch, which plays a big role, the last was made to allow the movement of the foot inside the shoe freely while increasing the fitting to the maximum.

When manufacturing the last of the shape most similar to the shape of the foot as in the present invention, the inner space of the shoe is almost the same as the shape of the foot can give a feeling like bare feet when wearing the shoe is excellent and comfortable even if worn for the first time The fit can be maintained as it is.

In addition, the areas of the soles of the feet or the shape of the metatarsal bones and the bones between the toes and the metatarsal bones provide a feeling that the foot is almost completely fixed in the shoe when the shoe is ignited, so that it feels as if you are barefoot. It can prevent various types of foot disease for people who walk or work for a long time.

Hereinafter, with reference to the accompanying Figures 1 to 6 will be described in detail with respect to the last of the preferred embodiment of the present invention.

1 is a perspective view of a last according to an embodiment of the present invention, Figure 2 is a partial perspective view showing the forefoot portion of the last according to an embodiment of the present invention, Figure 3 is a plan view of the last according to an embodiment of the present invention, Figure 4 is a side view observed from the big toe side of the last according to an embodiment of the present invention, Figure 5 is a bottom perspective view of the last according to an embodiment of the present invention, Figure 6 is a forefoot of the last according to an embodiment of the present invention Bottom view showing the floor.

As shown in Figures 1 to 6, the last 10 of the present invention is manufactured in the shape most similar to the shape of the foot of the human body, in particular the shape of the toes and soles almost as it is, the material is wood, synthetic resin It may be selected from ash, metal, and the like, and other materials may be selected and manufactured.

As shown in FIG. 5, the last 10 is roughly divided into a forefoot part 21, a middle foot part 22, and a rear foot part 23. Forefoot portion 21 is a place for forming the five metatarsal portions connected to the toe portion and the bone of the toe portion, and the metatarsal portion 22 is an arched structure as a central portion of the foot to form a middle portion of the foot. It is for forming, and the rear part 23 is for shaping the calcaneus part which is a heel bone.

As a preferred embodiment, the first protruding portion 11 protruding in a shape corresponding to the shape of the big toe of the human body is provided at one end of the forefoot portion 21 of the last 10, and the first protruding portion 11 is provided. As shown in Figs. 3 and 4, it protrudes roundly forward and upward.

When the shoe is manufactured using the last 10 in which the first protrusion 11 is formed, a rounded space is formed at the front and the upper part of the front of the shoe, thereby minimizing the pressure applied to the big toe and at the same time fitting force. It is expected to be able to elevate and prevent diseases such as hallux valgus, which causes the big toe to bow out in the long run.

1 to 3, according to another embodiment of the present invention, the forefoot 21 of the last 10 has a shape corresponding to each protruding shape of the second to fifth toes of the human toe. The concave-convex portion 12 curved roundly in a zigzag form may be formed, and the concave-convex portion 12 is connected to the first protrusion 11. More specifically, the uneven portion 12 extends from the first protrusion 11 and protrudes roundly forward to be roundly connected to each other in a zigzag form.

When the shoe is manufactured using the last 10 having the uneven portion 12 formed together with the first protrusion 11, the fifth toe corresponding to the little toe is fixed as well as the big toe in the front of the shoe. Since the space of the concave-convex shape can be formed, the flow of the foot can be minimized to increase the fitting force.

1 and 3, according to another embodiment of the present invention, an inner side surface of the middle foot 22 of the last 10 may be formed with a second protrusion 13 on an arch protruding outward. The second protrusion 13 may have a shape corresponding to a ball protruding from the inner surface of the middle foot of the human body, that is, the ball of the foot.

In the case of manufacturing shoes using the last 10 having the second protrusions 13 formed therein, in particular, even when the foot is wide, the foot is comfortable because the foot is comfortable and does not cause pain. It is expected to prevent the little toe from being deformed.

4 and 5, according to another embodiment of the present invention, grooves are formed in an arch shape at the bottom of the middle foot of the human body on the bottom inner side of the bottom of the middle foot 22 of the last 10. The first bone portion 14 is formed to have a shape corresponding to the bone valley rounded upward in the upward direction.

When the shoe is manufactured using the last 10 having the first valleys 14 formed thereon, since the midsole of the shoe protrudes upward in a form corresponding to the first valleys 14, the feeling of wearing is increased, and on the midsole. Since the shape of the insole to be seated and the midsole supporting it are the same, the fit can be doubled.

According to another embodiment of the present invention as shown in Figures 1 and 4, rounded upward protruding in the shape of the last portion of the last 10, corresponding to the bones projecting upward in the arch on the instep of the human body The third protrusion 17 may be formed.

When the shoe is manufactured using the last 10 having the third protrusion 17 formed thereon, the inner upper surface of the shoe is formed to protrude upwardly in a shape corresponding to the third protrusion 17 so that when the shoe is worn The foot is not pressed, and in the case of a shoe with a strap, even if the strap is tightened, the foot is uniformly tightened, thereby increasing the fitting force.

On the other hand, the sole of the human body is not only a bone of the shape corresponding to the first bone 14, but also various types of bones are formed between the forefoot (toe) and the forefoot, and to produce a last in accordance with the object of the present invention In this case, it is preferable that a bone having a shape corresponding to the bone of the sole is formed on the bottom of the last.

To this end, according to another embodiment of the present invention as described with reference to Figures 4 to 6, in the boundary between the forefoot portion 21 and the midfoot portion 22 of the last (10), The second bone portion 16 in the lateral direction in which the valley is formed in a shape corresponding to the valley in which the groove is recessed in the lateral direction between the middle portions may be formed.

The second bone portion 16 is a shape in which the portions where the five toes are respectively connected to the soles of the soles are concave than the soles of the soles, that is, the grooves are laterally recessed relative to the foot (FIG. 4). To FIG. 6).

In this way, when the shoe is manufactured using the last 10 having the second bone portion 16 formed therein, the corresponding portion of the second bone portion 16 of the midsole protrudes in the horizontal direction so that the entire toe can be fixed, thereby improving the feeling of fitting. Can be.

According to another embodiment of the present invention, as shown in Figure 6 between the forefoot 21 and the midfoot 22 of the last 10, between each metatarsal bone of the third toe and the fourth toe of the foot of the human body A third bone portion 15 having a groove may be formed in a shape corresponding to the groove in which the groove is recessed.

As described above, the metatarsal bones are the bones connecting the metatarsal bones and the metatarsal joints corresponding to the toe bones, and are composed of five because they are connected to each of the five metatarsal bones, each of which is connected to the big toe bone. Is called the first metatarsal bone, and the part connected to the little toe bone is called the fifth metatarsal bone, and the groove is depressed between the third toe and the fourth toe corresponding to the first to third metatarsal bones and the fourth and fifth metatarsal bones on the sole of the foot. The third valley 15 corresponds to the groove.

When the shoe is manufactured using the last 10 having the third bone 15 formed as described above, the front part of the midsole corresponds to the second and third bone parts together with the second bone 16 formed in the lateral direction, respectively. Because of the raised shape, each toe does not flow and can be fixed more precisely and reliably, which doubles the feeling of fitting.

Although the above description has been made based on the limited structure of the accompanying drawings, the present invention is not limited to the structure of the illustrated embodiment and the description thereof, and those skilled in the art can change the design as needed by those skilled in the art. It is to be understood that such changes are included within the scope of the following claims.

1 is a perspective view of a last according to an embodiment of the present invention.

Figure 2 is a partial perspective view showing the forefoot portion of the last in accordance with an embodiment of the present invention.

Figure 3 is a plan view of the last in accordance with an embodiment of the present invention.

Figure 4 is a side view (thumb toe side) of a last according to an embodiment of the present invention.

5 is a perspective view of the bottom of the last according to an embodiment of the present invention.

Figure 6 is a bottom view showing the forefoot bottom of the last in accordance with an embodiment of the present invention.

<Explanation of the Codes in Drawings>

10 ... Last

11 ... The First Stone

12 ... Unevenness

13 ... The Second Stone

14 ... First Goal

15 ... Third Goal

16 ... Second Goal

17 ... The Third Stone

21 ... Forefoot

22 ... Midfoot

23 ... The Husband

Claims (8)

In the last for manufacturing shoes, The last is provided with at least one shape formed to correspond to a specific portion of the foot of the human body, The specific portion is a bone grooved in the transverse direction between the toe and the midfoot of the human body, the shape portion of the second bone portion laterally corrugated at the boundary between the forefoot 21 and the midfoot 22 of the last ( Last for shoes manufacturing, characterized in that 16). The method of claim 1, The shape part, the last for shoe manufacturing, characterized in that it further comprises a first protrusion (11) protruding rounded forward and upward to correspond to the shape of the big toe of the human body, one end of the forefoot portion (21) of the last. 3. The method of claim 2, At the tip of the forefoot 21 of the last, the first protrusion 11 is formed to extend from the first toe part 11 so as to correspond to each protruding shape of the second to fifth toe of the human body, and further, the uneven part 12 bent forward is formed. Last for shoe manufacturing, characterized in that. The method of claim 1, The shape portion further includes a second protrusion 13 on the arch protruding outward to correspond to the bone protruding outward from the medial foot inner side of the human body on the inner side of the middle foot 22 of the last. The last for the production of shoes characterized by the above-mentioned. The method of claim 1, The shape portion may further include a first bone portion having an arch on the arch so as to correspond to a groove in which the groove is formed in the arch shape at the bottom of the middle foot of the human body. Last for the production of shoes. delete The method of claim 1, The shape portion may be between the forefoot portion 21 and the midfoot portion 22 of the last, and the third bone portion 15 having a groove to correspond to the grooved groove between each metatarsal bone of the third toe and the fourth toe of the human foot. Last for manufacturing shoes, characterized in that it further comprises a. The method of claim 1, The shape part, the last of the shoe manufacturing, characterized in that it further comprises a third protrusion (17) protruding upward in the arch to correspond to the bone protruding upward in the arch from the instep of the human body.

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