JP-2026075971-A - Heel support

JP2026075971AJP 2026075971 AJP2026075971 AJP 2026075971AJP-2026075971-A

Abstract

[Problem] To provide a heel stiffener with a crescent shape in plan view, which integrates a guide part and left and right holding parts, that can be built into shoes that can be put on without using a shoehorn, and which has a holding part that better wraps around the foot. [Solution] In a heel core 2 which is crescent-shaped in plan view and has a guide portion 21 and left and right holding portions 22 as an integrated unit, the front ends 221 of each of the left and right holding portions 22 are made convex in side view, and the boundary 23 between the hard guide portion 21 and the soft left and right holding portions 22 is concave in side view with the middle section in the vertical direction set back to the rear. [Selection Diagram] Figure 1

Inventors

内田貴久

Assignees

株式会社ニチマン

Dates

Publication Date: 20260511
Application Date: 20241023

Claims (2)

In a heel support that is built into a shoe that can be put on without using a shoehorn, the guide part and the left and right holding parts are integrated and have a crescent shape in plan view, A heel support characterized by having the front ends of each of the left and right retaining parts convex when viewed from the side.
The heel core according to claim 1, wherein the boundary between the hard guide portion and the soft left and right holding portions is concave in side view, with the middle section in the vertical direction set back towards the rear.

Description

This invention relates to a heel core, shaped like a crescent in plan view, which is built into the heel of a shoe that can be put on without using a shoehorn, and comprises an integrated guide section and left and right retaining sections. Shoes that can be put on without a shoehorn have configurations such as one in which the foot is temporarily deformed to insert the foot into the opening, or one in which the foot is slid into the opening along a heel core built into the heel (Patent Document 1). The shoe in Patent Document 1 incorporates a crescent-shaped heel core (reinforcement member) in the heel, which is integrated into the heel. This core consists of a rigid guide portion (the part that contacts the rear of the heel) that acts as a shoehorn for the foot to be inserted into the opening, and soft left and right holding portions (the parts that contact both sides of the heel) that hold the heel from the sides after the shoe is put on. As a result, the heel core disclosed in Patent Document 1 prevents the guide portion from tilting forward, and the left and right holding portions wrap around the foot, firmly fixing the heel (Patent Document 1 [0016]). Japanese Patent Publication No. 2021-053040 This is a perspective view showing an example of a shoe in which the heel stiffener of the present invention is built into the heel.This is a right side view of the shoe in this example, with its external shape virtually displayed.This is a back view of the shoe in this example, with its external shape virtually displayed. The embodiments for carrying out the present invention will be described below with reference to the figures. As shown in Figures 1-3, the heel support 2 of the present invention is embedded in the upper 13 of the heel portion 11 of a shoe 1 that can be worn without a shoehorn. The heel support 2 in this example is a crescent-shaped resin member in plan view, composed of a guide portion 21, which is a curved surface material similar to a shoehorn, and left and right holding portions 22, which are curved surface materials projecting forward from the guide portion 21. The guide portion 21 and the left and right holding portions 22 are molded integrally, and a reinforcing curved surface material of a similar shape is superimposed on the guide portion 21, with a boundary 23 between the guide portion 21 and the left and right holding portions 22. The guide section 21 has an upper edge that follows the rear edge of the opening 12 and an upward-facing guide surface 211. The guide surface 211 serves to guide the foot into the shoe 1 by allowing the heel (not shown) to rest and slide. In this example, the guide section 21 is rigidly constructed using overlapping reinforcing curved surface materials, resulting in high rigidity. Therefore, even with a raised guide surface 211, the guide section 21 does not bend or deform under the weight of the heel of the foot. This raised guide surface 21 in this example makes it possible to provide a shoe 1 that is easier to put on. The retaining portion 22 is formed from the left and right convex portions, which are extensions of the curved surface material of the guide portion 21, excluding the reinforcing curved surface material. Its front end portion 221 is formed in a circular arc shape when viewed from the side. The lower edges of the guide portion 21 and the left and right retaining portions 22 are continuous straight lines and are both fixed to the sole 14. Here, since the front end portions 221 of each of the left and right retaining portions 22 are formed in a circular arc shape when viewed from the side, most of the front edge protrudes forward from the front end of the lower edge of the retaining portion 22, creating a portion that can deform without being constrained by the lower edge. This allows the front end portion 211 of the retaining portion 21, when deformed to form the foot, to better enclose the foot. In this example, the heel core 2 has a curved reinforcing surface material whose front edge forms a boundary 23 with the retaining portion 22. The boundary 23 in this example has a side-view arc shape with the middle section in the vertical direction projecting backward. The left and right retaining portions 22, which are relatively softer than the guide portion 21, deform forward from the boundary 23. Because the boundary 23 has a side-view arc shape, the left and right retaining portions 22 are easily deformed to conform to the shape of the foot. This allows the front end portion 211 of the retaining portion 21, after deforming to conform to the foot, to better enclose the foot. This invention relates to a heel core, shaped like a crescent in plan view, which is built into the heel of a shoe that can be put on without using a shoehorn, and comprises an integrated guide section and left and right retaining sections. Shoes that can be put on without a shoehorn have configurations such as one in which the foot is temporarily deformed to insert the f