shoes

Abstract

To provide shoes that are easy to put on and have a good appearance. [Solution] The shoe (10) comprises a sole (11), an upper (12) supported by the sole (10) having an opening (17), a heel (15), and a guide part (18) that guides the wearer's foot into the opening (17), an outer layer (31) that constitutes the outer surface of the heel (15) and the outer surface of the guide part (18), an inner layer (32) that constitutes the inner surface of the heel (15) and the inner surface of the guide part (18), and outer The shoe comprises a core material (33) provided between the layer (31) and the inner layer (32), extending from the heel portion (15) to the guide portion (18). The core material (33) comprises a plate-shaped base material (40) made of synthetic leather and a plurality of reinforcing layers (41) extending vertically on the surface of the base material (40). The reinforcing layers (41) are formed with a plate thickness smaller than that of the base material (40) and are arranged in a vertical stripe pattern with gaps between them.

Description

Technical Field

[0001] The present invention relates to shoes.

Background Art

[0002] Conventionally, there is known a shoe including a sole, an opening edge, a heel portion covering the wearer's heel, and an upper portion supported by the sole and having a guide portion extending rearward and upward from the heel portion to guide the wearer's foot to the opening edge (see, for example, Patent Document 1). In the shoe of Patent Document 1, the wearer's foot can be guided by the guide portion and slipped into the opening edge, and it is said that the shoe can be easily put on without using a shoehorn or the like. In the shoe of Patent Document 1, a core material made of a shape memory resin is provided inside the heel portion and the guide portion to enhance the shape retention of the heel portion and the guide portion.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the configuration of Patent Document 1, since the guide portion is relatively large and inclined rearward, the appearance of the shoe is different from that of ordinary shoes, and there is a problem in the appearance of the shoe. Further, if the inclination of the guide portion is reduced to improve the appearance of the shoe, the ease of putting on the shoe may be reduced.

[0005] Therefore, an object of the present invention is to provide a shoe that can be easily put on and has good appearance.

Means for Solving the Problems

[0006] The shoe comprises a sole, an opening, a heel portion covering the wearer's heel, and an upper portion supported by the sole, which extends upward from the heel portion and guides the wearer's foot into the opening, and further comprises an outer layer portion constituting the outer surface of the heel portion and the outer surface of the guide portion, an inner layer portion constituting the inner surface of the heel portion and the inner surface of the guide portion, and a core material provided between the outer layer portion and the inner layer portion and extending from the heel portion to the guide portion, wherein the core material comprises a plate-shaped base material portion made of synthetic leather and a plurality of reinforcing layers extending vertically on the surface of the base material portion, the reinforcing layers are formed with a plate thickness smaller than the base material portion and are provided in a vertical stripe pattern with gaps between them. [Effects of the Invention]

[0007] According to this invention, it is possible to provide shoes that are easy to put on and have a good appearance. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view of a shoe according to one embodiment of the present invention, seen from the front. [Figure 2] This is a perspective view of the shoe from the rear. [Figure 3] This is a side view of a shoe. [Figure 4] This is a perspective view showing the internal structure of the heel and guide sections. [Figure 5] This is an enlarged cross-sectional view showing a portion of the heel and guide sections. [Figure 6] This is a view of a portion of the core material from the outside of the shoe. [Modes for carrying out the invention]

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Figure 1 is a perspective view of a shoe 10 according to one embodiment of the present invention, viewed from the front. Figure 2 is a perspective view of the shoe 10, viewed from the rear. Figure 3 is a side view of the shoe 10. In Figure 3, the pull strap 19 and shoelace portion 16, which will be described later, are not shown. In this specification, the front-to-back, left-to-right, and up-to-down directions refer to the directions as viewed from the wearer of the shoe 10. In the diagrams used in the following explanation, arrow FR indicates the front, arrow LH indicates the left, and arrow UP indicates the up.

[0010] The shoe 10 is a low-cut shoe comprising a long, plate-shaped sole 11 extending from front to back, and an upper part 12 supported by the sole 11 and covering the wearer's foot.

[0011] The upper part 12 comprises a front upper part 13 that covers the part of the foot from the toes to the instep from above, a pair of left and right front side parts 14 that cover the part of the foot from the toes to the part in front of the heel from the sides, and a heel part 15 that covers the heel of the foot from the left and right sides and the rear. Furthermore, the upper part 12 includes a shoelace section 16 that tightens the front of the upper part 12 with a string passed through the front upper part 13, an opening 17 into which the wearer inserts their foot, a guide section 18 that extends upward and backward from the heel section 15, and a band-shaped pull strap 19 that is fixed to the rear surface of the heel section 15.

[0012] The heel portion 15 comprises a pair of left and right heel side walls 20 that cover the heel of the foot from the left and right sides, and a heel rear wall 21 that covers the heel of the foot from behind. The guide portion 18 extends posteriorly and upward, continuously from the upper end of the heel rear wall portion 21. The guide portion 18 protrudes above the heel side wall portion 20. When viewed from above in plan, the guide portion 18 and the heel rear wall portion 21 are curved to conform to the posterior surface of the heel of the foot.

[0013] The opening 17 is an opening defined by the rear edge of the front upper part 13, the upper edges of the rear ends of the left and right front side parts 14, the upper edges of the left and right heel side walls 20, and the upper edge of the guide part 18.

[0014] Referring to Figure 3, the rear surface of the heel rear wall portion 21 comprises a lower rear surface portion 21b extending upward in a forward-tilting position from the lower end 21a of the rear surface, and an upper rear surface portion 21c extending upward in a backward-tilting position from the upper end of the lower rear surface portion 21b. The front wall surface 21d that constitutes the front surface of the heel rear wall portion 21 is the inner surface of the heel rear wall portion 21 and is a portion that contacts the heel of the foot and holds the heel. The front wall surface 21d is formed following the lower rear surface 21b and the upper rear surface 21c. For this reason, the lower portion of the front wall surface 21d is in a forward-tilted posture, and the upper portion of the front wall surface 21d is in a backward-tilted posture.

[0015] Figure 4 is a perspective view showing the internal structure of the heel portion 15 and the guide portion 18. Figure 5 is an enlarged cross-sectional view showing a part of the cross-section of the heel portion 15 and the guide portion 18. The heel portion 15 and the guide portion 18 include an outer layer portion 31 that constitutes the outer surfaces of the heel portion 15 and the guide portion 18, an inner layer portion 32 that constitutes the inner surfaces of the heel portion 15 and the guide portion 18, and a core material 33 provided between the outer layer portion 31 and the inner layer portion 32 and extending vertically from the heel portion 15 to the guide portion 18.

[0016] The outer layer portion 31 constitutes the surface that is exposed on the outer side of the shoe 10 in the heel portion 15 and the guide portion 18. That is, the lower rear surface 21b, the upper rear surface 21c, and the rear surface 18a of the guide portion 18 are constituted by the outer layer portion 31. Also, the outer surfaces of the left and right heel side wall portions 20 are also constituted by the outer layer portion 31.

[0017] The outer layer portion 31 is constituted by, for example, a fiber-based knitted fabric such as polyester, nylon, and cotton. Also, the upper front portion 13 and the front side portion 14 are constituted by the same material as the outer layer portion 31. That is, the outer layer portion 31 is an extension of the material that constitutes the upper front portion 13 and the front side portion 14 to the heel portion 15 and the guide portion 18.

[0018] The inner layer portion 32 constitutes the surface that is located on the inner side of the shoe 10 in the heel portion 15 and the guide portion 18. That is, the front wall surface 21d of the heel rear wall portion 21 and the front surface 18b of the guide portion 18 are constituted by the inner layer portion 32. Also, the inner surfaces of the left and right heel side wall portions 20 are also constituted by the inner layer portion 32.

[0019] Since the inner layer portion 32 is the part that contacts the heel of the foot, it is configured to have higher cushioning performance than the outer layer portion 31. The inner layer portion 32 is, for example, a sponge with a fibrous fabric such as polyester or nylon laminated thereon, and the fibrous fabric is exposed inside the shoe 10, and the sponge is arranged so as to be positioned on the side of the core material 33. Note that the plate thickness of the sponge of the inner layer portion 32 may be formed larger in the portion covering the upper part of the core material 33 than in the portion covering the lower part of the core material 33.

[0020] The core material 33 includes a core rear wall portion 35 that extends vertically along the rear surface of the heel of the foot, a pair of left and right core side wall portions 36 that extend forward from both ends in the width direction (left and right direction) of the core rear wall portion 35, and a rear upper extension portion 37 that extends rearward and upward from the upper end of the core rear wall portion 35, and is formed in a substantially U shape in a top view. The core rear wall portion 35 is the core of the heel rear wall portion 21, the core side wall portion 36 is the core of the heel side wall portion 20, and the rear upper extension portion 37 is the core of the guide portion 18. The upper edge portion of the core material 33 is housed below the joint portion where the upper edge portion of the outer layer portion 31 and the upper edge portion of the inner layer portion 32 are joined.

[0021] Referring to FIG. 4, the core material 33 is divided into left and right parts at the left and right central portions of the core rear wall portion 35, and includes an outer piece 33a located on the outer side in the left and right direction and an inner piece 33b located on the inner side in the left and right direction. The core material 33 is formed by sewing the outer piece 33a and the inner piece 33b with a sewing portion 33c that extends vertically at the left and right central portions of the core rear wall portion 35.

[0022] FIG. 6 is a view of a part of the core material 33 seen from the outside of the shoe 10. Referring to FIGS. 4 to 6, the core material 33 includes a plate-like base material portion 40 made of synthetic leather and a plurality of reinforcing layers 41 that extend vertically on the surface of the base material portion 40.

[0023] In detail, the base material portion 40 comprises a base layer 42 as a base fabric and a resin layer 43 (Figure 5) formed by coating one surface of the base layer 42 with a synthetic resin such as polyurethane resin or polyvinyl chloride resin, which has a leather-like appearance. Here, synthetic leather includes a resin layer 43 provided on a base layer 42 made of knitted or woven fabric of polyester, nylon, or other fibers, and artificial leather having a resin layer 43 provided on a base layer 42 made of nonwoven fabric using polyester, nylon, or other fibers.

[0024] The base material portion 40 is provided such that the base layer 42 faces the outer layer portion 31 and the resin layer 43 faces the inner layer portion 32. Furthermore, the base material portion 40 includes an outer surface 40a of the base material portion 40, which is the outer surface of the shoe 10, and an inner surface 40b of the base material portion 40, which is the inner surface of the shoe 10. In other words, the outer surface 40a of the substrate is composed of a base layer 42, and the inner surface 40b of the substrate is composed of a resin layer 43.

[0025] The reinforcing layer 41 is provided on the outer surface 40a of the substrate, but not on the inner surface 40b of the substrate. In other words, the reinforcing layer 41 is provided on the base layer 42 on the opposite side from the resin layer 43. In detail, the reinforcing layer 41 extends linearly vertically on the outer surface 40a of the base material. The reinforcing layer 41 is continuous from the lower end to the upper end of the core material 33. Note that since the thickness of the reinforcing layer 41 is significantly smaller than that of the base material 40, the thickness of the reinforcing layer 41 is not shown in Figure 5. Multiple reinforcing layers 41 are provided in a vertical stripe pattern with equally spaced gaps D between them. Furthermore, the reinforcing layers 41 are provided over the entire outer surface 40a of the base material, extending over the rear wall portion 35 of the core material, the left and right side walls 36 of the core material, and the rear upward extension portion 37.

[0026] The reinforcing layer 41 is a printed portion formed by printing a resin-based printing coating onto the outer surface 40a of the substrate using a printer or the like, and is composed of resin. Examples of resin-based printing coatings that make up the reinforcing layer 41 include polyvinyl chloride resin, rubber adhesive dissolved in a solvent, and silicone rubber.

[0027] The width W of the reinforcing layer 41 is set to be smaller than the gap D between adjacent reinforcing layers 41. For example, the width W is 2 mm and the gap D is 3 mm.

[0028] The thickness t1 (not shown) of the reinforcing layer 41 is set to be smaller than the thickness t2 (not shown) of the base material 40. For example, the thickness t1 is 0.05 mm and the thickness t2 is 0.5 mm. In this case, the thickness of the core material 33 would be 0.55 mm, but it is preferable that the thickness of the core material 33 be 1.5 mm or less.

[0029] The core material 33 is bonded to the inner surface of the outer layer 31 with an adhesive. More specifically, the outer surface 40a of the base material 33 is bonded to the inner surface of the outer layer 31 together with the reinforcing layer 41. The outer surface 40a of the base material has multiple reinforcing layers 41 arranged in a vertical stripe pattern, creating an uneven surface, which increases the bonding area to the outer layer 31. As a result, the core material 33 can be securely fixed to the outer layer 31.

[0030] The inner layer 32 covers the inner surface 40b of the base material from the inside, but is not fixed to the inner surface 40b of the base material. Since the inner surface 40b of the base material does not have a reinforcing layer 41, the unevenness caused by the reinforcing layer 41 can be suppressed from affecting the cushioning properties of the inner layer 32. In addition, since the inner layer 32 is in contact with the resin layer 43 (inner surface 40b of the base material) which has a leather-like appearance, the inner layer 32 has good cushioning properties.

[0031] Referring to Figure 3, when the wearer puts on the shoe 10, they insert their toes forward through the opening 17 and insert their heel into the opening 17 while placing it against the front surface 18b of the guide part 18. At this time, the front surface 18b, which slopes upward at the rear, is pushed downward by the heel and tilts further backward, becoming a forward-sloping (rear-sloping) surface suitable for guiding the heel. As a result, the guide part 18 can properly guide the heel into the opening 17, and the wearer can easily put on the shoe 10. The wearer may also use the pull strap 19 (Figure 2) to grasp the shoe 10 for assistance.

[0032] In the shoe 10, the base material 40 of the core material 33 of the heel portion 15 and the guide portion 18 is made of synthetic leather, and the base material 40 is reinforced by vertically striped reinforcing layers 41 that extend vertically. This allows the synthetic leather base material 40, which has a moderate degree of softness, to be reinforced with vertically striped reinforcing layers 41, thereby providing the guide portion 18 and the heel portion 15 with appropriate elasticity against vertical deformation. As a result, the guide portion 18 can elastically deform so that it tilts significantly backward when pushed downward by the heel of the foot. Therefore, when the shoe 10 is not being worn, the inclination of the guide portion 18 can be reduced. As a result, the appearance of the shoe 10 is like that of a normal shoe, and the appearance of the shoe 10 is good. When the shoe 10 is being worn, the guide portion 18 returns to its original shape. For example, if the core material is made of a relatively hard resin such as polypropylene resin or polyethylene terephthalate resin, the guide section cannot undergo significant elastic deformation when pressed downwards by the heel of the foot. Therefore, it is necessary to pre-set a large incline in the guide section when the shoe is not being worn.

[0033] Furthermore, the pull strap 19 is sewn from the outside to the heel rear wall portion 21 and rear surface 18a and then sewn to the core material 33, thereby reinforcing the heel portion 15 and guide portion 18. As a result, even when the base material portion 40 is made of synthetic leather, the heel portion 15 and guide portion 18 can exhibit appropriate elasticity. Furthermore, the sutured portion 33c (Figure 4) of the core material 33 has the effect of reinforcing the heel portion 15 and the guide portion 18 through its seams. As a result, the heel portion 15 and the guide portion 18 can exhibit appropriate elasticity.

[0034] As shown in Figure 3, when the shoe 10 is not being worn, the upper end 18c of the rear surface 18a of the guide portion 18 is located in front of the lower end 21a of the rear surface of the heel portion 15. As a result, the appearance of the shoe 10 resembles that of a normal shoe, and the appearance of the shoe 10 is good.

[0035] Furthermore, as shown in Figure 3, when the shoe 10 is not being worn, the inclination angle A of the rear surface 18a of the guide portion 18 with respect to the vertical is approximately 5° and 7° or less. As a result, the appearance of the shoe 10 is like that of a normal shoe, and the appearance of the shoe 10 is good.

[0036] (Note) This specification discloses the following technologies in one aspect. The reference numerals listed below correspond to those used in the accompanying drawings, but are provided as examples only and are not intended to limit the inventions of this application.

[0037] (Technology 1) A shoe (10) comprising a sole (11), an opening (17), a heel portion (15) that covers the wearer's heel, and an upper portion (12) supported by the sole (11) that extends upward from the heel portion (15) and guides the wearer's foot into the opening (17), The system comprises an outer layer (31) that constitutes the outer surface of the heel portion (15) and the outer surface of the guide portion (18), an inner layer (32) that constitutes the inner surface of the heel portion (15) and the inner surface of the guide portion (18), and a core material (33) provided between the outer layer (31) and the inner layer (32) and extending from the heel portion (15) to the guide portion (18), The core material (33) comprises a plate-shaped base material portion (40) made of synthetic leather and a plurality of reinforcing layers (41) extending vertically on the surface of the base material portion (40). The reinforcing layers (41) are formed to have a thickness smaller than that of the base material (40) and are arranged in a vertical stripe pattern with gaps (D) between them in the shoe (10).

[0038] In this technology, the core material provided inside the heel and guide sections is made of synthetic leather, and the relatively deformable base material is reinforced by a vertically striped reinforcing layer. As a result, the guide section exhibits appropriate elasticity when pressed from above, and deforms appropriately when the wearer's foot is placed on the guide section, allowing the wearer's foot to be guided well into the opening of the shoe. Therefore, the inclination of the guide section when the shoe is not being worn can be reduced, resulting in a shoe that is aesthetically pleasing and easy to put on.

[0039] (Technology 2) The shoe (10) according to Technology 1, wherein the reinforcing layer (41) is provided on the outer surface (40a) of the base material portion (40), and the outer surface (40a) of the base material is bonded to the outer layer portion (31) together with the reinforcing layer (41).

[0040] In this technology, the outer surface of the substrate is bonded to the outer layer along with a reinforcing layer arranged in vertical stripes, thereby securing a large bonding area and enabling strong adhesion of the substrate to the outer layer.

[0041] (Technology 3) The inner layer (32) is a layer with higher cushioning properties than the outer layer (31), and covers the inner surface (40b) of the base material (40), which is the inner surface of the base material (40). The shoe (10) according to Technology 2, wherein the reinforcing layer (41) is not provided on the inner surface (40b) of the base material.

[0042] In this technology, since the reinforcing layer is not provided on the inner surface of the substrate, the influence of the reinforcing layer on the cushioning of the inner layer can be suppressed, resulting in good cushioning of the inner layer.

[0043] (Technology 4) The base material (40) comprises a base layer (42) and a resin layer (43) supported on the base layer (42) and having a leather-like appearance. The shoe (10) according to any one of the technologies 1 to 3, wherein the reinforcing layer (41) is provided on the base layer (42) on the opposite side of the resin layer (43).

[0044] In this technology, the reinforcing layer is provided on the base layer on the opposite side of the resin layer, so the elasticity of the base material can be increased by the reinforcing layer without impairing the properties of the leather-like appearance of the resin layer.

[0045] (Technology 5) The shoe (10) according to any one of the technologies 1 to 4, wherein the width (W) of the reinforcing layer (41) is formed to be smaller than the gap (D).

[0046] In this technology, because the width of the reinforcing layer is small, more reinforcing layers can be placed in the width direction, effectively increasing the elasticity of the base material.

[0047] (Technology 6) The shoe (10) according to any one of the technologies 1 to 5, wherein the reinforcing layer (41) is a printed portion on the base material (40) with resin printed on it.

[0048] This technology allows for the easy formation of a reinforcing layer, made of resin and having a thickness smaller than that of the base material, onto the base material through printing.

[0049] (Technology 7) The shoe (10) according to any one of the techniques 1 to 6, wherein the guide portion (18) extends upward toward the rear, and the upper end (18c) of the rear surface (18a) of the guide portion (18) is located in front of the lower end (21a) of the rear surface of the heel portion (15).

[0050] In this technology, the upper end of the rear surface of the guide section is positioned in front of the lower end of the rear surface of the heel section, resulting in a shoe that looks like a normal shoe and has a good appearance.

[0051] (Technology 8) The aforementioned guide portion extends upward towards the rear, The shoe (10) according to any one of the techniques 1 to 7, wherein the inclination of the guide portion with respect to the vertical direction is 7° or less.

[0052] In this technology, the inclination of the guide section relative to the vertical direction is 7° or less, resulting in a shoe that looks like a normal shoe and has a good appearance.

[0053] Although the shoes of this invention have been described based on specific embodiments, the shoes of this invention are not limited to the embodiments described herein, and include various modifications within the scope of the utility model registration claims. In the embodiment described above, the core material 33 is provided as a single piece between the outer layer 31 and the inner layer 32, but the present invention is not limited to this structure. For example, another plate-shaped core material may be provided between the inner layer 32 and the core material 33 below the guide portion 18. [Explanation of Symbols]

[0054] 10: Shoes 11: Sole 12: Upper part 15: Heel section 17: Opening 18: Guide Section 18a: Rear view (rear view of the guide section) 18c: Upper end (upper end of the rear surface of the guide section) 21a: Lower end (lower end of the rear surface of the heel) 31: Outer layer 32: Inner layer 33: Core material 40: Base material part 40a: Base material outer surface 40b: Inner surface of base material 41: Reinforcement layer 42: Base layer 43: Resin layer D: Gap W: Width

Claims

1. A shoe comprising a sole, an opening, a heel portion covering the wearer's heel, and an upper portion supported by the sole, having a guide portion extending upward from the heel portion to guide the wearer's foot into the opening, The system comprises an outer layer that constitutes the outer surface of the heel portion and the outer surface of the guide portion, an inner layer that constitutes the inner surface of the heel portion and the inner surface of the guide portion, and a core material provided between the outer layer and the inner layer and extending from the heel portion to the guide portion. The core material comprises a plate-shaped base material made of synthetic leather and a plurality of reinforcing layers extending vertically on the surface of the base material. The reinforcing layers are formed with a thickness smaller than that of the base material and are arranged in a vertical stripe pattern with gaps between them.

2. The shoe according to claim 1, wherein the reinforcing layer is provided on the outer surface of the base material, which is the outer surface of the base material, and the outer surface of the base material is bonded to the outer layer together with the reinforcing layer.

3. The inner layer is a layer with higher cushioning properties than the outer layer, and covers the inner surface of the base material, which is the inner surface of the base material. The shoe according to claim 2, wherein the reinforcing layer is not provided on the inner surface of the base material.

4. The substrate portion comprises a base layer and a resin layer supported on the base layer and having a leather-like appearance. The shoe according to claim 1, wherein the reinforcing layer is provided on the base layer on the opposite side of the resin layer.

5. The shoe according to claim 1, wherein the width of the reinforcing layer is formed to be smaller than the gap.

6. The shoe according to claim 1, wherein the reinforcing layer is a printed portion on which resin is printed on the base material.

7. The shoe according to claim 1, wherein the guide portion extends upward toward the rear, and the upper end of the rear surface of the guide portion is located in front of the lower end of the rear surface of the heel portion.

8. The aforementioned guide portion extends upward towards the rear, The shoe according to claim 1, wherein the inclination of the guide portion with respect to the vertical direction is 7° or less.

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