JP3164359U - footwear - Google Patents

Abstract

An object of the present invention is to provide footwear that bends in accordance with the bending of a foot during walking. In a footwear comprising a front part that contacts a toe part, a rear part that contacts a heel part, and an intermediate part that joins the front part and the rear part, the intermediate part is formed of an elastic body, and The width in the direction is 4 cm to 7 cm, and it is arranged at the part where the tarsal sphere contacts. Moreover, in order to improve the adhesiveness of footwear, the said intermediate part is higher than the said front part and the said back part, and has a level | step difference in the range of 1 mm-10 mm. [Selection] Figure 1

Description

  The present invention relates to footwear comprising a front part with which a toe part contacts, a rear part with which a heel part contacts, and an intermediate part joining the front part and the rear part, wherein the intermediate part is formed of an elastic body.

  In general, footwear such as clogs and sandals whose top plate portion is made of wood or hard synthetic resin is often used because it is fashionable and comfortable to wear. However, since the conventional top plate is made of a material that does not bend the entire top plate, the foot plate is not bent in accordance with the bending of the foot during walking. Therefore, there is a problem that walking is difficult.

  In order to solve this problem, it consists of a front part with which the toe part contacts, a rear part with which the heel part contacts, and an intermediate part that joins the front part and the rear part, and is bent by forming the intermediate part with an elastic body. Footwear with sex has been proposed. (Patent Documents 1 and 2)

JP 2002-142802 A Utility model registration No. 3086299 gazette

  In the invention described in Patent Document 1, the position corresponding to the bent portion of the foot is cut with a slight gap in the lateral direction, and the gap is filled with a liquid synthetic resin to provide flexibility. Since the gap is small, there is a problem that the footwear does not easily follow the flexion of the foot during walking, making walking difficult. In addition, in order to increase the flexibility of footwear, there is also described an invention in which a plurality of gaps are provided in the front-rear direction and the lateral direction of the position corresponding to the bending of the sole, and liquid resin is filled, but the structure is complicated and difficult to mold There is a problem that.

  The device described in Patent Document 2 is almost the same as the invention described in Patent Document 1, and a lacking portion is formed in the bent portion of the shoe sole, and synthetic resin is inserted to give the footwear flexibility. However, there is a problem that the structure is complicated and the molding is difficult.

  Furthermore, in the invention described in Patent Document 1 and the device described in Patent Document 2, the foot globules (the raised parts between the toes and the arch) that are the bent parts of the foot were filled with the synthetic resin. Since it touches the gap, there is a problem in that it causes a sense of incongruity during walking.

  Furthermore, in the invention described in Patent Document 1 and the device described in Patent Document 2, since there is no step between the bending-corresponding position and the front-rear direction portion in order to fill the gap with the liquid resin, the footwear is placed on the foot during walking. There is a problem that it is difficult to walk without close contact.

  An object of the present invention is to solve the above-described problems, and an object of the present invention is to provide footwear that can smoothly follow a foot along with the bending of the foot during walking. Another object of the present invention is to provide footwear that can be easily formed with a simple structure. Furthermore, it aims at providing the footwear which can walk, without producing discomfort in a sole. It is another object of the present invention to provide footwear in which footwear is more closely attached to the sole during walking.

In order to achieve the above object, a footwear according to the present invention includes a front part that contacts a toe part, a rear part that contacts a heel part, and an intermediate part that joins the front part and the rear part, In footwear where the part is formed of an elastic body,
The front part and the rear part are made of a material having a hardness higher than that of the intermediate part, and the intermediate part has a width in the front-rear direction of 4 cm to 7 cm, and is arranged at a portion where the tarsal sphere contacts. It is characterized by.

  Moreover, the said intermediate part is higher than the said front part and the said back part, and has a level | step difference in the range of 1 mm or more and 10 mm or less.

  Further, the elastic body is rubber.

  The front portion, the intermediate portion, and the rear portion are connected at their lower surface portions by a reinforcing sheet.

  In addition, a bottom portion formed of an elastic body is disposed on the lower surface portions of the front portion, the intermediate portion, and the rear portion.

  The present invention provides footwear during walking by providing an intermediate portion formed of an elastic body having a width of 4 cm to 7 cm in the front-rear direction, centering on a portion corresponding to the tarsal sphere which is a bent portion of the sole. Since it flexes flexibly in accordance with the flexion of the foot, the difficulty in walking during walking is eliminated.

  In addition, by setting the width in the front-rear direction of the intermediate portion formed of the elastic body to be 4 cm to 7 cm, the portion where the foot ball sphere contacts is only the elastic body portion, and the front portion, the rear portion, and the middle portion during walking There is no contact with the bulbar bulb at the joint with the part, and there is no sense of incongruity.

  And since the intermediate part formed with an elastic body is higher than a front part and a back part and has a level | step difference in the range of 1 mm to 10 mm, it becomes easy to walk with the footwear in close contact with the sole during walking.

  Furthermore, the structure is simplified and molding is facilitated by comprising the front part with which the toe part contacts, the rear part with which the heel part contacts, and the intermediate part which is an elastic body that joins the front part and the rear part.

1 is an overall view of footwear in the present invention. It is a top view of the footwear. It is a longitudinal cross-sectional view of the said footwear. It is a longitudinal cross-sectional view of the footwear which has a level | step difference in the intermediate part of the said footwear, a front part, and a back part.

  Hereinafter, an embodiment of footwear in the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows an overall view of footwear 10 according to the present invention. As shown in FIG. 1, the footwear 10 according to the present embodiment includes a front part 12 that contacts the toe part, a rear part 14 that contacts the heel part, and an intermediate part 16 that joins the front part 12 and the rear part 14. . Further, an upper 18 that fixes the foot across the front part 12, the intermediate part 16, and the rear part 14 is attached. The upper 18 may be configured in other forms such as a thong. As shown in FIGS. 2 and 3, a reinforcing sheet 22 that connects and reinforces the front portion 12, the rear portion 14, and the intermediate portion 16 is provided on the lower surface portions of the front portion 12, the rear portion 14, and the intermediate portion 16. Be joined. Furthermore, a bottom portion 20 made of an elastic body is disposed on the lower surface portions of the front portion 12, the intermediate portion 16, and the rear portion 14 via a reinforcing sheet 22.

  Further, the intermediate portion 16 is set to have a width in the front-rear direction of 4 cm to 7 cm. The elastic body forming the intermediate portion 16 and the bottom portion 20 means a rubber-like substance, and includes natural rubber and synthetic rubber, but foamed rubber is preferable in terms of price, durability, weight, and the like. As the foam rubber, urethane rubber, chloroprene rubber, nitrile rubber, acrylic rubber, fluorine rubber, butyl rubber, EVA foam rubber, and the like can be used, and EVA foam rubber is particularly preferable. Moreover, as a material which forms the front part 12 and the rear part 14, it is preferable to use a material whose hardness is higher than the elastic body which forms the intermediate part 16, for example, wood and hard synthetic resin.

  In the present embodiment, the front part 12, the intermediate part 16, and the rear part 14 have the same height, but the intermediate part 16 may be higher than the front part 12 and the rear part 14 as shown in FIG. It is preferable to have a step in the range of 1 mm or more and 10 mm or less at the boundary portion between the front portion 12 and the rear portion 14 and the intermediate portion 16. When the level difference is lower than 1 mm, the adhesiveness of the intermediate portion 16 to the sole becomes low during walking. Further, when the step exceeds 10 mm, the step of the seam between the intermediate portion 16 and the front portion 12 or the rear portion 14 becomes too large, causing a feeling of strangeness on the sole.

  Examples for manufacturing actual footwear are shown below. First, a wooden top plate part is cut out from wood and divided into a front part 12 in contact with the toe part, a rear part 14 in contact with the heel part, and an intermediate part between the front part 12 and the rear part 14. At this time, the front portion 12 was divided in the front-rear direction by a width of 5 cm, the middle portion was 5 cm, and the rear portion 14 was 15.5 cm.

  Thereafter, an EVA foam rubber part having the same shape as that of the intermediate part of the wood is cut out from the EVA foam rubber plate to form an intermediate part 16, and an adhesive is applied to the cross sections of the front part 12 and the rear part 14, and the intermediate part 16 is joined. did. And the reinforcement sheet 22 was stuck on the back surface of the front part 12, the intermediate | middle part 16, and the back part 14 using the adhesive agent so that each part might be straddled.

  Next, the footwear 10 is manufactured by suspending the upper 18 and attaching the bottom portion 20 made of EVA foam rubber to the back surfaces of the front portion 12, the rear portion 14 and the intermediate portion 16 with an adhesive via a reinforcing sheet 22. did.

  The present invention is not limited to the above-described embodiment, and can be modified without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 10 Footwear 12 Front part 14 Back part 16 Middle part 18 Upper 20 Bottom part 22 Reinforcement sheet 24 Tarsal ball

Claims (5)

In footwear comprising a front part that a toe part contacts, a rear part that a heel part contacts, and an intermediate part that joins the front part and the rear part, wherein the intermediate part is formed of an elastic body,
The front part and the rear part are formed of a material having higher hardness than the intermediate part,
The footwear according to claim 1, wherein the intermediate portion has a width in the front-rear direction of 4 cm to 7 cm and is disposed at a portion where the foot ball is in contact. The footwear according to claim 1,
The footwear characterized in that the intermediate portion is higher than the front portion and the rear portion, and has a step in a range of 1 mm to 10 mm. In the footwear according to claim 1 or 2,
The footwear characterized in that the elastic body is rubber. In the footwear according to any one of claims 1 to 3,
The footwear, wherein the front portion, the intermediate portion, and the rear portion are connected to each other at a lower surface portion by a reinforcing sheet. In the footwear according to any one of claims 1 to 4,
The footwear characterized by the bottom part formed with an elastic body being arrange | positioned in the lower surface part of the said front part, the said intermediate part, and the said back part.

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