insole

Abstract

To provide an insole that can improve ease of wearing shoes and maintain good comfort. [Solution] The insole (1) comprises a heel contact part (2) that is positioned so as to contact the inner sole of the shoe and against which the user's heel comes into contact, and a heel guide part (3) that stands up from the rear edge (2a) of the heel contact part (2) and guides the user's heel, the heel contact part (2) and heel guide part (3) being integrally formed so as to be elastically deformable, and the heel contact part (2) having a notch (4) at a position corresponding to the center of the user's heel.

Description

[Technical Field]

[0001] The present invention relates to an insole that is placed in a shoe. [Background technology]

[0002] Conventional insoles are known to have a structure that includes a portion that functions as a shoehorn. For example, the insole disclosed in Patent Document 1 has a shoehorn portion integrated into the rear part of the insole of the shoe, allowing the heel to slide along the shoehorn portion when putting on the shoe. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Publication No. 5-2087 Summary of the Invention [Problem to be solved by the invention]

[0004] However, conventional insoles with a shoehorn portion have the problem that when placed in a user's regular shoes, the thickness of the shoehorn portion makes the shoes feel cramped and uncomfortable to wear.

[0005] Therefore, an object of the present invention is to provide an insole that can improve the ease of wearing shoes while maintaining good comfort. [Means for solving the problem]

[0006] The object of the present invention is to provide a shoe sole comprising a heel contact portion that is disposed in contact with the inner sole of a shoe and against which the heel of a user comes into contact, and a heel guide portion that is provided to stand from the rear edge of the heel contact portion and guide the heel of the user, the heel contact portion and the heel guide portion being integrally formed so as to be elastically deformable, the heel contact portion having a notch at a position corresponding to the center of the heel of the user, the notch opening at the front edge of the heel contact portion, the heel guide portion having an auxiliary notch formed in the center in the width direction facing the rear edge of the heel contact portion, the notch and the auxiliary notch communicating with each other. The heel contact portion and the heel guide portion are connected only at the rear edge of the heel contact portion. This is achieved by the insole. [Effects of the Invention]

[0009] According to the insole of the present invention, it is possible to improve the ease of putting on shoes while maintaining good comfort. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a perspective view of an insole according to an embodiment of the present invention. [Figure 2] FIG. 2 is a diagram for schematically explaining the function of the insole shown in FIG. [Figure 3] FIG. 10 is a perspective view of an insole according to another embodiment of the present invention. [Figure 4] FIG. 10 is a perspective view of an insole according to yet another embodiment of the present invention. [Figure 5] FIG. 10 is a perspective view of an insole according to yet another embodiment of the present invention. [Figure 6] FIG. 10 is a perspective view of an insole according to yet another embodiment of the present invention. [Figure 7] FIG. 10 is a perspective view of an insole according to yet another embodiment of the present invention. [Figure 8] FIG. 4 is a diagram for schematically explaining the function of the insole shown in FIG. 3. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Fig. 1 is a perspective view of an insole according to one embodiment of the present invention. As shown in Fig. 1, the insole 1 of this embodiment includes a heel contact portion 2 and a heel guide portion 3 that stands up from the rear edge portion 2a of the heel contact portion 2. Like conventional insoles, the heel contact portion 2 and the heel guide portion 3 are made of EVA resin, urethane resin, elastomer, rubber material, cork material, etc., and are integrally formed to be elastically deformable.

[0012] The heel contact portion 2 is formed flat and large enough to contact almost the entire heel portion, which is the portion of the user's foot closer to the heel than the arch, and is positioned so as to contact the upper surface of the inner sole of the shoe.

[0013] The heel contact part 2 has a notch 4 at a position corresponding to the center of the user's heel. The notch 4 extends forward from near the center of the heel contact part 2 and is formed so as to open at the front edge 2b of the heel contact part 2. The width of the notch 4 may be constant, or it may be formed so as to taper forward.

[0014] The heel guide 3 is curved and rises from the arc-shaped rear edge 2a of the heel contact part 2, and guides the user's heel downward along the curved surface when the user puts on the shoe. The upper part of the heel guide 3 is narrow to facilitate elastic deformation.

[0015] As shown in Figure 2(a), the insole 1 having the above configuration is positioned at the rear of the shoe S so that the heel guide part 3 extends upward along the heel curve of the shoe S and protrudes diagonally rearward from the opening O, and the user can put on the shoe S smoothly by sliding the heel part of the user's foot, shown by the dashed double-dashed line, along the heel guide part 3.

[0016] When the shoe S is put on, the center of the user's heel fits into the notch 4 of the heel contact part 2, causing the notch 4 to expand in the width direction, so that as shown in Figure 2(b), the heel contact part 2 rises along the side of the shoe S, and the inside of the shoe S is expanded in the width direction by the heel contact part 2. This alleviates the feeling of tightness felt by the user when using the insole 1, and maintains good comfort.

[0017] Although one embodiment of the present invention has been described in detail above, specific aspects of the present invention are not limited to the above embodiment. For example, as shown in FIG. 3, the heel guide 3 may be configured to include an auxiliary notch 5 formed in the widthwise center so as to face the rear edge 2a of the heel contact 2. With this configuration, the auxiliary notch 5 is formed adjacent to the heel contact 2, which allows the heel guide 3 to deform when the user puts on the shoe, making it easier for the notch 4 to expand further in the widthwise direction, thereby easily maintaining a good wearing comfort. The notch 4 and the auxiliary notch 5 shown in FIG. 3 may be formed to communicate with each other as shown in FIG. 4, which allows the heel contact 2 to deform more easily. Note that in FIGS. 3 and 4, components similar to those in FIG. 1 are designated by the same reference numerals (as in the following drawings).

[0018] Insole 1 having auxiliary cutout 5 shown in Fig. 3 fits the posterior side C of the calcaneus of the user into auxiliary cutout 5 when the user has put on the shoe, as shown by the two-dot chain line in Fig. 8, thereby alleviating the force of heel guide 3 pushing the user's foot forward and alleviating the feeling of tightness inside the shoe. The same applies to insole 1 shown in Fig. 4.

[0019] The shape of the notch 4 is not particularly limited, and for example, as shown in Figure 5, it may be formed as an elongated hole with the long axis extending in the front-to-rear direction. In this way, even if the notch 4 is a through-hole, it is possible to maintain good comfort by elastically deforming the heel-contact portion 2. The notch 4 shown in Figure 5 may be formed so as to open to the front edge 2b of the heel-contact portion 2 via a narrowed portion 4a that is narrower than the length of the short axis, as shown in Figure 6, which promotes elastic deformation of the heel-contact portion 2.

[0020] The shape of the heel guide 3 is not particularly limited. For example, as shown in Figure 7, by forming a narrowed portion 3a in the width direction of the heel guide 3 and forming a recess 3b in the center of the upper edge of the heel guide 3, the shoe can be made easier to put on. [Explanation of symbols]

[0021] 1 insole 2 Heel contact area 3 Heel guide part 4 Notch 5 Auxiliary notch

Claims

[Claim 1] a heel contact portion that is disposed so as to contact the inner sole of the shoe and against which the heel of the user comes into contact; a heel guide portion that is provided to stand from a rear edge portion of the heel contact portion and guides the heel portion of the user, The heel contact portion and the heel guide portion are integrally formed to be elastically deformable, The heel contact portion has a notch at a position corresponding to the center of the heel of the user, The notch opens to a front edge of the heel contact portion, the heel guide portion includes an auxiliary notch formed in the widthwise center thereof so as to face the rear edge of the heel contact portion, the notch and the auxiliary notch communicate with each other; The insole has the heel contact portion and the heel guide portion connected only at the rear edge portion of the heel contact portion.

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