Sandals

Abstract

To provide a sandal capable of exhibiting a stamping function over a long period of time.SOLUTION: A sandal according to the present invention includes a sandal body, a front cloth fixed to the sandal body, a thong having a front end portion and a rear end portion opposite to the front end portion, the front end portion being connected to the front cloth and the rear end portion being fixed to the sandal body, and a stamp member having a stamp surface with a design on a lower surface thereof. An insertion portion inserted into the sandal main body is connected to any one of the front cloth and the rear end portion whose fixing position is included in the area, a first engaging portion is connected to a lower end of the insertion portion, and the stamp member includes a second engaging portion that can be switched between an engaged state in which the second engaging portion is engaged with the first engaging portion and a disengaged state in which the second engaging portion is disengaged from the first engaging portion by relative movement with the first engaging portion.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a sandal having a thong and a front part. [Background technology]

[0002] Traditionally, there has been a type of sandal that includes a sandal body (so-called base) with a bottom, a thong, and a front part to which the thong is fixed at the front of the sandal body. This type of sandal is also called beach sandals or zori (or island zori), and is widely known as being suitable for use on waterside areas such as beaches and rivers (for example, sandy beaches).

[0003] Sandals of this type are suitable for use near water, such as the seashore or rivers, and are therefore often used for leisure activities. Accordingly, many sandals of this type are offered that are not simply footwear but also feature a variety of designs and functions, making them highly appealing. One example is a type that focuses on use near water, such as on sandy beaches, and features a stamp function on the bottom of the sandal body, with patterns, designs, advertisements, and other features formed by protrusions and recesses on the bottom of the sandal body (see, for example, Patent Documents 1 and 2). When such sandals are used on sandy beaches, the protrusions and recesses (stamps) on the bottom of the sandal body leave a footprint. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-337195 [Patent Document 2] Japanese Utility Model Application Publication No. 54-27850 Summary of the Invention [Problem to be solved by the invention]

[0005] However, since the above-mentioned sandals have a stamping function due to the unevenness formed on the bottom surface of the sandal body, the unevenness (especially the convex parts) wears down as you walk, and the stamping function cannot be maintained for a long period of time.

[0006] Therefore, the present invention provides sandals that can maintain their stamping function for a long period of time. [Means for solving the problem]

[0007] The sandal of the present invention comprises a sandal body having a top surface and a bottom surface opposite the top surface in the vertical direction, a front part fixed to the sandal body, a thong having a front end and a rear end opposite the front end, the front end being connected to the front part and the rear end being fixed to the sandal body, and a stamp member having a stamp surface on its underside with a predetermined design applied by at least one of a recess and a protrusion, the stamp member being attached to an area of ​​the sandal body including a fixing position for fixing at least one of the front part and the rear end on the bottom side. The sandal has an engaging recess formed to be able to be engaged and disengaged, and at least one of the front and rear ends, where the fixed position is included within the area where the engaging recess is formed, has an insertion portion connected to it that is inserted into the sandal body in a direction intersecting the front-to-back and width directions, and a first engagement portion connected to the lower end of the insertion portion, and the stamp member has a second engagement portion that can engage with the first engagement portion in the vertical direction, and which can be switched between an engaged state in which it engages with the first engagement portion and a released state in which it is disengaged from the first engagement portion by moving relative to the first engagement portion. [Effects of the Invention]

[0008] According to the present invention, the stamp function can be maintained for a long period of time. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view of a pair of sandals according to one embodiment of the present invention. [Figure 2] FIG. 2 is a plan view of one pair of sandals according to the embodiment. [Figure 3] FIG. 3 is a bottom view of one pair of sandals according to the embodiment. [Figure 4] FIG. 4 is a bottom view of the sandals (for one pair) according to the embodiment, showing the state in which the stamp member has been replaced. [Figure 5] FIG. 5 is a vertical cross-sectional view of one sandal of the embodiment, showing a state in which a stamp member is attached. [Figure 6] FIG. 6 is a vertical cross-sectional view of one pair of sandals according to the embodiment, with the stamp member removed. [Figure 7] FIG. 7 is a bottom view of one pair of sandals according to the embodiment, with the stamp member removed. [Figure 8] FIG. 8 is a partially enlarged cross-sectional view of one sandal of the embodiment, showing a state in which the stamp member is attached and disposed outside the fitting recess. [Figure 9] FIG. 9 is a cross-sectional view of one sandal of the same embodiment, showing a state in which the first engagement portions (first front engagement portion, first rear engagement portion) are arranged outside the fitting recess. [Figure 10] FIG. 10 is a bottom view of the stamp member for one pair of sandals according to the embodiment. [Figure 11] FIG. 11 is a plan view of a stamp member for one pair of sandals according to the embodiment. [Figure 12] FIG. 12 is a cross-sectional view of the stamp member for one pair of sandals according to the embodiment, taken along the line ABCD in FIG. [Figure 13] 13 is a cross-sectional view of a stamp member for one pair of sandals according to the embodiment, taken along the ABE-EF cross section of FIG. [Figure 14] FIG. 12 is a cross-sectional view of the stamp member for one pair of sandals according to the embodiment, taken along the line GG in FIG. [Figure 15]FIG. 15 is a partially enlarged cross-sectional view of one of the sandals of the embodiment, showing the stamp member in an attached and detached state. [Figure 16] FIG. 16 is a cross-sectional view of one sandal according to another embodiment of the present invention. [Figure 17] FIG. 17 is an explanatory diagram of a sandal according to another embodiment of the present invention, and is a list of arrangement patterns of the fixing positions of the thongs and the stamp members (fitting recesses). DETAILED DESCRIPTION OF THE INVENTION

[0010] A sandal according to one embodiment of the present invention will be described below with reference to the drawings. Generally, the term "sandal" refers to a pair of sandals (a pair consisting of a symmetrical left sandal 1 and a right sandal 1) as shown in FIGS. 1 and 2. However, in the following description, unless otherwise specified, the term "sandal" refers to one of the sandals 1 (the left sandal 1 or the right sandal 1) of a pair of sandals S (a pair of sandals S). In the following description, the toe end of the sandal 1 is referred to as the front end, the heel end of the sandal 1 (the side opposite the front end) is referred to as the rear end, and the direction in which the front and rear ends are aligned is referred to as the front-to-rear direction. The direction perpendicular to the up-down direction and the front-to-rear direction is referred to as the width direction.

[0011] The sandal 1 of this embodiment comprises a sandal body 2 having a top surface US and a bottom surface LS opposite the top surface US in the vertical direction, a front part 3 fixed to the sandal body 2, and a thong 4 having a front end FP and a rear end BP opposite the front end FP, the front end FP being connected to the front part 3 and the rear end BP being fixed to the sandal body 2. In addition to the above configuration, the sandal 1 of this embodiment comprises a sandal in which a predetermined shape design is applied to at least one of the recessed and protruding portions by one of the recessed and protruding portions (protruding portion 50 in this embodiment) as shown in Figs. It is provided with a stamp member 5 having a stamp surface DS on its underside.

[0012] The sandal body 2 is made of a single elastic material or multiple elastic materials. That is, the sandal body 2 has a single-layer structure made of a single material, or a layered structure in which multiple elastic materials are layered vertically. As a specific example, the layers of the sandal body 2 are made of at least one of natural rubber, synthetic rubber, and polyurethane (urethane foam). Note that the multiple elastic materials here include not only different materials but also multiple materials that are the same but have different properties (for example, multiple urethane foams with different foaming rates or elastic moduli, or multiple synthetic rubbers with different elastic moduli).

[0013] In this embodiment, the sandal body 2 has a laminated structure (two-layer structure) in which two urethane foams 20, 21 are bonded together, as shown in Figures 5 and 6. The foaming rates (elastic moduli) of the two urethane foams 20, 21 may be different, but in this embodiment, they are the same.

[0014] The vertical outer surface (the surface opposite to the bonding surface) of one of the two urethane foams 20, 21 (hereinafter referred to as the first urethane foam) 20 forms the top surface US of the sandal body 2, and the vertical outer surface (the surface opposite to the bonding surface) of the other of the two urethane foams 20, 21 (hereinafter referred to as the second urethane foam) 21 forms the bottom surface LS of the sandal body 2. When the foaming rates (elastic moduli) of the first urethane foam 20 and the second urethane foam 21 are made different, it is preferable, in consideration of comfort, to make the foaming rate of the first urethane foam 20 that forms the top surface US of the sandal body 2 greater than that of the second urethane foam 21 and to make the elasticity of the first urethane foam 20 smaller than that of the second urethane foam 21 (making the first urethane foam 20 softer than the second urethane foam 21).

[0015] The sandal body 2 has a thickness in the vertical direction. As shown in Figures 3 and 4, anti-slip irregularities 22a, 22b (concave 22a, convex 22b) are formed on the bottom surface LS of the sandal body 2. Note that anti-slip irregularities may also be formed on the top surface US of the sandal body 2, but in this embodiment, the top surface US does not have any irregularities, and the irregularities 22a, 22b are provided only on the bottom surface LS.

[0016] The sandal body 2 is formed by punching a material (urethane foam in this embodiment), and the shape (planar shape) of the sandal body 2 when viewed from above and below is formed into a predetermined shape, as shown in Figures 2, 3, and 4. In this embodiment, the planar shape of the sandal body 2 is shaped to fit the shape of a foot, but this can be changed in various ways, and for example, it may be shaped into an outer shape that resembles an animal (e.g., a cat, a dog, a monkey, etc.) or an object.

[0017] Returning to FIG. 2 , the sandal body 2 has through-holes 23, 24a, and 24b at positions corresponding to the front end FP and rear end BP of the thong 4, which are the fixing positions of the thong 4. That is, the sandal body 2 has through-holes 23, 24a, and 24b that penetrate in a direction intersecting the front-to-back direction and the width direction relative to the fixing position of the front part 3 connected to the front end FP of the thong 4 and the fixing position of the rear end BP of the thong 4. In this embodiment, the through-holes 23, 24a, and 24b penetrate the sandal body 2 in the up-and-down direction, as shown in FIGS. 5 and 6 . In this embodiment, the through-holes 23, 24a, and 24b penetrate the first urethane foam 20 out of the first urethane foam 20 and the second urethane foam 21 that constitute the sandal body 2.

[0018] Specifically, the sandal body 2 has, as through-holes 23, 24a, 24b, one first through-hole 23 provided on the front end side in the front-rear direction, and one second through-hole 24b provided on the rear side in the front-rear direction with respect to the first through-hole 23. The second through-holes 24a, 24b are arranged in a pair with a space therebetween in the width direction (see FIGS. 1 and 2).

[0019] The first through hole 23 and the pair of second through holes 24a, 24b each penetrate vertically through the sandal body 2. In this embodiment, the first through hole 23 and the pair of second through holes 24a, 24b penetrate the first urethane foam 20 out of the first urethane foam 20 and the second urethane foam 21 that constitute the sandal body 2.

[0020] 3, 4, 6, and 7, the sandal body 2 has a fitting recess 25 formed in an area including a fixing position for fixing at least one of the front part 3 on the bottom surface LS and the rear end part BP, so that the stamp member 5 can be fitted and removed. The fitting recess 25 is formed in a single area including the front part 3 on the bottom surface LS and three fixing positions for fixing each of the pair of rear end parts BP, BP. In other words, the fitting recess 25 is formed to include all of the first through-hole 23 and the pair of second through-holes 24a, 24b.

[0021] In this embodiment, since the sandal body 2 has a two-layer structure, the fitting recess 25 is formed by an opening 25a formed in the second urethane foam 21, as shown in Figures 6 and 7. That is, the second urethane foam 21 has an opening 25a formed therein that conforms to the planar shape of the fitting recess 25. As described above, the first through-hole 23 and the pair of second through-holes 24a, 24b are arranged in the fitting recess 25, and therefore the opening 25a in the second urethane foam 21 is formed to surround the first through-hole 23 and the pair of second through-holes 24a, 24b. As a result, by bonding the second urethane foam 21 to the first urethane foam 20, the opening 25a becomes the fitting recess 25 of the sandal body 2.

[0022] The front part 3 is placed between the big toe and the index toe of the user, and is connected to the underside of the front end FP of the thong 4, as shown in Figures 5 and 6. That is, the front part 3 extends in the vertical direction between the fixing position (first through-hole 23) of the sandal body 2 and the front end FP of the thong 4. In this embodiment, the front part 3 is molded integrally with the thong 4 and is formed in an axial shape.

[0023] The thong 4 is a flexible molded product made of natural rubber, synthetic rubber, soft resin, or the like. Returning to FIG. 2, the thong 4 includes a pair of extensions 40a, 40b extending rearward from the front end FP. That is, the thong 4 is bifurcated from the front end FP and extends rearward. Accordingly, in this embodiment, the rear end BP of the thong 4 is the tip of each of the pair of extensions 40a, 40b.

[0024] Specifically, the pair of extensions 40a, 40b have a base end connected to the front end FP of the thong 4 and a tip end opposite the base end, located further rearward in the front-to-back direction than the base end. The pair of extensions 40a, 40b are aligned in the width direction. The widthwise spacing between the pair of extensions 40a, 40b increases from the base end toward the tip end. Accordingly, the pair of rear ends BP, BP are fixed to the sandal body 2 at positions spaced apart in directions perpendicular to the front-to-back direction and the up-to-down direction.

[0025] In this embodiment, the front end FP of the thong 4 is located at a position corresponding or approximately corresponding to the first through-hole 23, and the pair of rear end portions BP, BP of the thong 4 are located at a position corresponding or approximately corresponding to the pair of second through-holes 24a, 24b (overlapping positions in this embodiment). In the thong 4 of this embodiment, each of the pair of extension portions 40a, 40b is formed flat in the vertical direction and is twisted outward by 180° between the front end portion FP and the rear end portion BP. As a result, the rear end portions BP of the pair of extension portions 40a, 40b are located above the second through-holes 24a, 24b in a state where they are upside down relative to the front end portion FP side. In addition, the pair of extension portions 40a, 40b The underside of the rear end BP (the surface facing the sandal body 2) is referred to as the connecting surface.

[0026] 5 to 7, at least one of the front part 3 and the rear end part BP of the thong 4, whose fixing position is within the region where the fitting recess 25 is formed, is connected to an insertion part 42, 43a, 43b that is inserted in a direction intersecting the front-to-rear direction with respect to the sandal body 2 (hereinafter referred to as the insertion direction), and first engagement parts 44, 45a, 45b are connected to the lower ends of the insertion parts 42, 43a, 43b. That is, at least one of the front part 3 and the rear end part BP of the thong 4 that overlaps the fitting recess 25 when viewed from the up-down direction is connected to an insertion part 42, 43a, 43b that is inserted in the insertion direction with respect to the sandal body 2, and first engagement parts 44, 45a, 45b are connected to the lower ends of the insertion parts 42, 43a, 43b. In this embodiment, the insertion parts 42, 43a, 43b are movable in the insertion direction.

[0027] In the sandal 1 of this embodiment, as described above, the first through-hole 23 and the pair of second through-holes 24a, 24b of the sandal body 2 are located within the area where the fitting recess 25 is formed. Accordingly, the front part 3 and the pair of rear end parts BP, BP are provided with insertion parts 42, 43a, 43b and first engagement parts 44, 45a, 45b, respectively.

[0028] 5 and 6, the insertion portion (hereinafter referred to as the front insertion portion) 42 connected to the front part 3 is formed axially and concentrically with the lower end of the front part 3. As described above, the front insertion portion 42 of this embodiment is movable in the insertion direction. Since the sandal body 2 is formed of elastically deformable urethane foam, the outer diameter of the front insertion portion 42 may be the same as or approximately the same as the first through-hole 23. However, in this embodiment, the outer diameter of the front insertion portion 42 is set smaller than the inner diameter (hole diameter) of the first through-hole 23, and the front insertion portion 42 is movable in the axial direction while inserted into the first through-hole 23.

[0029] In the present embodiment, a first engagement portion (hereinafter referred to as the first front engagement portion) 44 connected to the front insertion portion 42 is formed in a circular shape when viewed from the axial direction of the front insertion portion 42, and is concentrically or approximately concentrically connected to the tip (lower end) of the front insertion portion 42 (see FIG. 7). The first front engagement portion 44 is set to have a larger diameter than the front insertion portion 42. That is, the first front engagement portion 44 is connected to the front insertion portion 42 in a flange-like shape (see FIG. 7). In the present embodiment, the first front engagement portion 44 is set to have a larger diameter than the front insertion portion 42 and is set to have a larger diameter than the first through hole 23. Accordingly, when the front insertion portion 42 is inserted into the first through hole 23, the first front engagement portion 44 passes through the first through hole 23 in a press-fit state or while being deformed. In addition, when the first front engagement portion 44 passes through the first through hole 23, the first front engagement portion 44 itself may deform, or the deformation of the sandal body 2 may cause the first through hole 23 to expand in diameter.

[0030] 5, 6, 8, and 9, the movement range of the front insertion portion 42 is set within a range in which the first front engagement portion 44 can be changed between an internal position within the fitting recess 25 and an external position outside the fitting recess 25. As will be described in detail later, the internal position here refers to a position (a position in which the first front engagement portion 44 is disposed within the fitting recess 25) in which the first front engagement portion 44 maintains an engaged state with a second engagement portion (a second engagement portion corresponding to the first front engagement portion 44: hereinafter referred to as the second front engagement portion) 51 of the stamp member 5 fitted into the fitting recess 25, as shown in FIG. 5, and the external position refers to a position in which the first front engagement portion 44 moves out of the fitting recess 25 and can release the engagement with the second front engagement portion 51 of the stamp member 5, as shown in FIG.

[0031] As described above, the rear end portion BP of the thong 4 (the tip end of the extension portions 40a, 40b) is flattened in the vertical direction, and the downward surface (connecting surface) of the rear end portion BP of the thong 4 faces the sandal body 2 (the second through holes 24a, 24b). Therefore, as shown in FIGS. 5, 6, 8, and 9, The insertion portions (hereinafter referred to as rear insertion portions) 43a, 43b connected to the rear end portions BP of the thongs 4 (40a, 40b) are formed to protrude downward from the connecting surface of the rear end portions BP. The rear insertion portions 43a, 43b connected to the pair of rear end portions BP of the thongs 4, respectively, and the first engagement portions (hereinafter referred to as first rear engagement portions) 45a, 45b connected to the rear insertion portions 43a, 43b have the same configuration except for being symmetrically arranged. Accordingly, the configurations related to these also have the same configuration except for being symmetrically arranged. Accordingly, Figures 5, 6, 8 and 9 show the rear insertion portion 43a connected to one of the pair of rear end portions BP, the first rear engagement portion 45a connected thereto, and related configurations, but the rear insertion portion 43b connected to the other rear end portion BP, the first rear engagement portion 45b connected thereto, and related configurations will be referenced in Figures 5, 6, 8 and 9 with the symbols in parentheses.

[0032] As described above, since the sandal body 2 is formed of elastic (elastically deformable) urethane foam, the outer diameter of the rear insertion portions 43a, 43b may be the same as or approximately the same as the second through holes 24a, 24b, similar to the front insertion portion 42. However, in this embodiment, the outer diameter of the rear insertion portions 43a, 43b is set to be smaller than the inner diameter (hole diameter) of the second through holes 24a, 24b, allowing the rear insertion portions 43a, 43b to move in the axial direction.

[0033] In this embodiment, the first rear engagement portions 45a, 45b connected to the rear insertion portions 43a, 43b are also formed in a circular shape when viewed from the axial direction of the rear insertion portions 43a, 43b, as shown in Fig. 7, and are connected concentrically or approximately concentrically to the distal ends (lower ends) of the rear insertion portions 43a, 43b. The first rear engagement portions 45a, 45b are set to have a larger diameter than the rear insertion portions 43a, 43b. That is, the first rear engagement portions 45a, 45b are connected to the rear insertion portions 43a, 43b in a flange-like shape. In this embodiment, the first rear engagement portions 45a, 45b are set to have a larger diameter than the rear insertion portions 43a, 43b and also to have a larger diameter than the second through-holes 24a, 24b. Accordingly, when the rear insertion portions 43a, 43b are inserted into the second through-holes 24a, 24b, the first rear engagement portions 45a, 45b pass through the second through-holes 24a, 24b while being press-fitted or deforming. Note that when the first rear engagement portions 45a, 45b pass through the second through-holes 24a, 24b, the first rear engagement portions 45a, 45b themselves may deform, or the deformation of the sandal body 2 may cause the diameter of the second through-holes 24a, 24b to expand.

[0034] 5, 6, 8, and 9, the movement range of the rear insertion portions 43a, 43b is set within a range in which at least the first rear engagement portions 45a, 45b can be changed between an internal position in the fitting recess 25 and an external position outside the fitting recess 25. Note that the internal position here refers to a position (a position disposed within the fitting recess 25) in which the first rear engagement portions 45a, 45b can engage with second engagement portions (second engagement portions corresponding to the first rear engagement portions 45a, 45b: hereinafter referred to as second rear engagement portions) 52a, 52b of the stamp member 5 fitted in the fitting recess 25, as shown in Fig. 5, and the external position refers to a position in which the first rear engagement portions 45a, 45b can come out of the fitting recess 25 and release the engagement with the second rear engagement portions 52a, 52b of the stamp member 5, as shown in Fig. 8. The front insertion portion 42, the first front engagement portion 44, the rear insertion portions 43a, 43b, and the first rear engagement portions 45a, 45b are integrally molded with the thong 4. In other words, the front insertion portion 42, the first front engagement portion 44, the rear insertion portions 43a, 43b, and the first rear engagement portions 45a, 45b are molded continuously from the same material as the thong 4.

[0035] As shown in FIGS. 3 and 4, the stamp member 5 of the sandal 1 of this embodiment is replaceable (changeable). The stamp member 5 is molded from natural rubber, synthetic rubber, or urethane foam. That is, the stamp member 5 is molded from the same or a different material as the sandal body 2. As shown in FIGS. 3, 4, and 5, the stamp member 5 is formed to be able to fit into the fitting recess 25. In this embodiment, the planar shape (shape viewed from the top and bottom) and size of the stamp member 5 are set so that, when the stamp member 5 is fitted into the fitting recess 25, the outer peripheral surface of the stamp member 5 is in close or nearly close contact with the inner peripheral surface of the fitting recess 25 (the inner peripheral surface defining the opening 25a of the second urethane foam 21). That is, when fitted into the fitting recess 25, the stamp member 5 and the fitting recess 25 are configured to restrict movement of each other in the front-to-back and width directions.

[0036] As shown in FIGS. 5 and 10 to 13, the stamp member 5 has second engagement portions 51, 52a, 52b (second front-side engagement portion 51, second rear-side engagement portions 52a, 52b) that can be engaged with the first engagement portions 44, 45a, 45b (first front-side engagement portion 44, first rear-side engagement portions 45a, 45b) in the up-down direction. Specifically, the stamp member 5 has second engagement portions 51, 52a, 52b (second front-side engagement portion 51, second rear-side engagement portions 52a, 52b) that can be engaged with the first engagement portions 44, 45a, 45b (first front-side engagement portion 44, first rear-side engagement portions 45a, 45b) in the up-down direction, and the second engagement portions 51, 52a, 52b are engaged with the first engagement portions 44, 45a, 45b (first front-side engagement portion 44, first rear-side engagement portions 45a, 45b) in the up-down direction. As a result, the second engagement portions 51, 52a, 52b (second front engagement portion 51, second rear engagement portions 52a, 52b) are switchable between an engagement state in which they engage with the first engagement portions 44, 45a, 45b (first front engagement portion 44, first rear engagement portions 45a, 45b) and a release state in which they are disengaged from the first engagement portions 44, 45a, 45b (first front engagement portion 44, first rear engagement portions 45a, 45b).

[0037] In the present embodiment, as described above, the insertion portions 42, 43a, 43b (the front insertion portion 42 and the rear insertion portions 43a, 43b) are inserted into the sandal body 2 so as to be movable in the insertion direction. Accordingly, the stamp member 5 can be changed in state between a fitted state in which the stamp member 5 is fitted into the fitting recess 25 and a non-fitted state in which the stamp member 5 is protruding from the fitting recess 25 while maintaining an engaged state between the first engagement portions 44, 45a, 45b (the first front engagement portion 44 and the first rear engagement portions 45a, 45b) and the second engagement portions 51, 52a, 52b (the second front engagement portion 51 and the second rear engagement portions 52a, 52b) by movement of the insertion portions 42, 43a, 43b (the front insertion portion 42 and the rear insertion portions 43a, 43b) in the insertion direction.

[0038] Accordingly, in the sandal 1 of this embodiment, when the stamp member 5 is in an unengaged state outside the engaging recess 25, the first engagement portions 44, 45a, 45b (first front engagement portion 44, first rear engagement portion 45a, 45b) and the second engagement portions 51, 52a, 52b (second front engagement portion 51, second rear engagement portions 52a, 52b) can move relative to each other in the front-to-rear direction or the width direction, and can be switched between an engaged state and a released state.

[0039] In this embodiment, as described above, the front part 3 and each of the pair of rear end parts BP, BP of the thong 4 are provided with insertion portions 42, 43a, 43b (front insertion portion 42, rear insertion portions 43a, 43b) and first engagement portions 44, 45a, 45b (first front engagement portion 44, first rear engagement portion 45a, 45b), so the stamp member 5 has a plurality of second engagement portions 51, 52a, 52b (second front engagement portion 51, second rear engagement portion 52a, 52b) corresponding to the first engagement portions 44, 45a, 45b (first front engagement portion 44, first rear engagement portion 45a, 45b) of the front part 3 and each of the pair of rear end parts BP, BP.

[0040] That is, when the stamp member 5 is fitted into the fitting recess 25, it has a second front engagement portion 51 that is engageable with the first front engagement portion 44, and second rear engagement portions 52a, 52b that are engageable with the first rear engagement portions 45a, 45b. As described above, the front insertion portion 42 and the first front engagement portion 44 are provided corresponding to the front end portion FP (front part 3) of the thong 4, and therefore the second front engagement portion 51 is provided at a position corresponding to the first front engagement portion 44. The rear insertion portions 43a, 43b and the first rear engagement portions 45a, 45b are provided in pairs, connected to each of the pair of rear end portions BP, BP of the thong 4, and therefore the second rear engagement portions 52a, 52b are provided in pairs at positions corresponding to each of the pair of second first rear engagement portions 45a, 45b.

[0041] 5, the second engagement portions 51, 52a, 52b (second front engagement portion 51, second rear engagement portions 52a, 52b) are formed to overlap in the up-down direction with the flange-shaped first engagement portions 44, 45a, 45b (first front engagement portion 44, first rear engagement portions 45a, 45b). In other words, the second engagement portions 51, 52a, 52b (second front engagement portion 51, second rear engagement portions 52a, 52b) function to prevent the flange-shaped first engagement portions 44, 45a, 45b (first front engagement portion 44, first rear engagement portions 45a, 45b) from coming off. That is, the stamp member 5 fitted into the fitting recess 25 functions as a retainer for the rear end BP of the front part 3 and the thong 4 by engaging the second engagement portions 51, 52a, 52b (second front engagement portion 51, second rear engagement portions 52a, 52b) with the first engagement portions 44, 45a, 45b (first front engagement portion 44, first rear engagement portions 45a, 45b).

[0042] In this embodiment, in order to enable the second engagement portions 51, 52a, 52b (second front engagement portions 51, second rear engagement portions 52a, 52b) to be disengaged from the first engagement portions 44, 45a, 45b (first front engagement portions 44, first rear engagement portions 45a, 45b) (to allow relative movement in a direction perpendicular to the vertical direction), the stamp member 5 has groove portions 53, 54, 55 that open on the upper surface opposite the lower surface and are open on the side of the stamp member 5 facing in a direction perpendicular to the engagement direction (vertical direction) with the engagement recess 25, as shown in Figures 10 to 13, and that extend from the side of the stamp member 5 to a fixed position.

[0043] The groove portions 53, 54, 55 include first groove portions 53a, 54a, 55a that include openings and allow the insertion portions 42, 43a, 43b extending in the vertical direction to move (pass through) in a direction perpendicular to the vertical direction, and second groove portions 53b, 54b, 55b that are connected to the first groove portions 53a, 54a, 55a in the vertical direction and allow the first engagement portions 44, 45a, 45b connected to the insertion portions 42, 43a, 43b to move (pass through) in a direction perpendicular to the vertical direction.

[0044] The groove widths of the first grooves 53a, 54a, 55a are set corresponding to the outer diameters of the insertion portions 42, 43a, 43b, and the groove widths of the second grooves 53b, 54b, 55b are formed according to the outer diameters of the first engagement portions 44, 45a, 45b. That is, the first grooves 53a, 54a, 55a and the second grooves 53b, 54b, 55b are formed continuously in the up-down direction, but the second grooves 53b, 54b, 55b are formed wider than the first grooves 53a, 54a, 55a. This forms a step between the first grooves 53a, 54a, 55a and the second grooves 53b, 54b, 55b.

[0045] Accordingly, the second engagement portions 51, 52a, 52b (the second front engagement portion 51 and the second rear engagement portions 52a, 52b) are formed by boundaries between the first groove portions 53a, 54a, 55a and the second groove portions 53b, 54b, 55b, which are at fixed positions. In this embodiment, the groove portions 53, 54, 55 form an inverted T-shaped space when viewed from a direction perpendicular to the up-down direction (the movement direction of the insertion portions 42, 43a, 43b and the first engagement portions 44, 45a, 45b) by the first groove portions 53a, 54a, 55a and the second groove portions 53b, 54b, 55b being continuous with each other. Accordingly, the groove portions 53, 54, 55 are open and inverted T-shaped on the outer circumferential surface of the stamp member 5 (see FIGS. 12 and 13).

[0046] As described above, the stamp member 5 has the second front engagement portion 51 and the pair of second rear engagement portions 52a and 52b as the second engagement portions 51, 52a, and 52b, and therefore the grooves 53, 54, and 55 are provided corresponding to the second front engagement portion 51 and the pair of second rear engagement portions 52a and 52b, respectively. That is, the stamp member 5 has the groove 53 corresponding to the second front engagement portion 51 and the pair of grooves 54 and 55 corresponding to the pair of second rear engagement portions 52a and 52b.

[0047] The groove 53 corresponding to the second front engagement portion 51 extends in the front-rear direction from a fixed position of the front part 3 (the engagement position between the first front engagement portion 44 and the second front engagement portion 51) and opens at the front end of the stamp member 5, allowing the first front engagement portion 44 and the front insertion portion 42 to be inserted through this open portion. In contrast, the pair of grooves 54, 55 corresponding to the second rear engagement portions 52a, 52b extend in the width direction from a fixed position of the rear end portion BP of the thong 4 (the engagement position between the first rear engagement portions 45a, 45b and the second rear engagement portions 52a, 52b) and opens at the side ends of the stamp member 5, allowing the first rear engagement portions 45a, 45b and the rear insertion portions 43a, 43b to be inserted through this open portion. One groove 54 of the pair of grooves 54, 55 extends to one side in the width direction from the fixed position of the rear end BP of the corresponding thong 4 (the engagement position between one first rear engagement portion 45a and one second rear engagement portion 52a), and the other groove 55 of the pair of grooves 54, 55 extends to the other side in the width direction from the fixed position of the rear end BP of the corresponding thong 4 (the engagement position between the other first rear engagement portion 45b and the other second rear engagement portion 52b). As a result, the pair of grooves 54, 55 corresponding to the second rear engagement portions 52a, 52b are open in opposite directions in the width direction.

[0048] 10 and 12 to 14, the stamp surface DS of the stamp member 5 includes a reference surface BS and protrusions 50 protruding from the reference surface BS. That is, the stamp member 5 includes a base portion 56 including the reference surface BS, which is fitted into the fitting recess 25, and the protrusions 50 protruding from the reference surface BS of the base portion 56, which form a predetermined design on the reference surface BS when viewed from a direction perpendicular to the reference surface BS.

[0049] The reference surface BS is positioned at the same level as the bottom surface LS of the sandal body 2 when the stamp member 5 is fitted into the fitting recess 25. In other words, the thickness of the base portion 56 in a direction perpendicular to the reference surface BS is set to be the same as or approximately the same as the depth of the fitting recess 25 (the thickness of the second urethane foam 21).

[0050] As described above, the convex portions 50 of the stamp surface DS are formed to express a desired design (stamp image), such as a pattern, design, advertisement, or publicity. The designs on the stamp surface DS of each stamp member 5 of one pair of sandals S (sandal 1 for the left foot, sandal 1 for the right foot) may be the same or different. Furthermore, the designs on the stamp surface DS of each stamp member 5 of one pair of sandals S (sandal 1 for the left foot, sandal 1 for the right foot) may be related to each other.

[0051] Furthermore, if the planar shape of the sandal body 2 is a shape designed with an animal, using the footprint of that animal as the stamp design on the stamp surface DS will result in an interesting sandal 1. For example, if the planar shape of the sandal body 2 is designed with a cat motif, using a design (character design) with a cat's paw print as the motif on the stamp surface DS will make the sandal 1 even more interesting for users who love cats.

[0052] In this way, by forming the convex portions 50 of the stamp surface DS into a desired design, the design of the stamp member 5 is transferred to the sand as footprints when walking on a waterside such as a sandy beach. Furthermore, when walking on places other than a sandy beach, the convex portions 50 of the stamp member 5 also function as a non-slip surface when walking.

[0053] In this way, when the convex portion 50 of the stamp member 5 functions as an anti-slip material, the convex portion 50 wears down and its function as a stamp is reduced or even lost. However, since the stamp member 5 of the sandal 1 of this embodiment is replaceable, the stamp function can be restored by replacing it with a new stamp member 5, and the anti-slip function is also restored.

[0054] Furthermore, even if the user wishes to change the stamp design of the stamp member 5, the stamp member 5 can be replaced with a stamp member 5 having a different stamp image.

[0055] Specifically, as described above, when the stamp member 5 is fitted into the fitting recess 25 (fitted state) with the first front engagement portion 44 and the second front engagement portion 51 engaged and the first rear engagement portions 45a, 45b and the second rear engagement portions 52a, 52b engaged, the stamp member 5 is restricted from moving in the front-rear direction and the width direction. In this state, the front insertion portion 42, which is continuous with the first front engagement portion 44 and inserted into the first through-hole 23, protrudes upward from the top surface US of the sandal body 2, but the engagement state between the first front engagement portion 44 and the second front engagement portion 51 is maintained because its movement in the front-rear direction and the width direction is restricted in relation to the first through-hole 23.

[0056] Similarly, the rear insertion portions 43a, 43b, which are continuous with the first rear engagement portions 45a, 45b and inserted into the second through-holes 24a, 24b, protrude upward from the top surface US of the sandal body 2, but are restricted from movement in the front-rear and width directions in relation to the second through-holes 24a, 24b, and therefore the engagement between the first rear engagement portions 45a, 45b and the second rear engagement portions 52a, 52b is maintained. When the user puts on the sandal 1 in this state (walks), an upward pulling force acts on the thong 4, but the vertical engagement between the first front engagement portion 44 and the second front engagement portion 51 and the vertical engagement between the first rear engagement portions 45a, 45b and the second rear engagement portions 52a, 52b function to prevent the thong 4 from slipping off, allowing the user to walk stably.

[0057] In addition, the upward pulling force acting on the thong 4 acts to pull the stamp member 5 inside the fitting recess 25 upward, but the stamp member 5 remains in a fixed position due to interference with the inner surface (the inner surface of the first urethane foam 20) that defines the fitting recess 25, thereby exerting its stamping function and anti-slip function.

[0058] As described above, when replacing the stamp member 5, the front insertion portion 42 (front part 3) protruding upward from the top surface US is moved so as to be pushed into the first through-hole 23, and the rear insertion portions 43a, 43b protruding upward from the top surface US are moved so as to be pushed into the second through-holes 24a, 24b, whereby the stamp member 5 is pushed downward and comes out of the fitting recess 25, as shown in Fig. 8. When the stamp member 5 itself is pulled downward, the front insertion portion 42 (front part 3) protruding from the top surface US of the sandal body 2 is drawn into the first through-hole 23, and the rear insertion portions 43a, 43b protruding from the top surface US of the sandal body 2 are also drawn into the second through-holes 24a, 24b, so that the stamp member 5 can also be drawn out of the fitting recess 25 in this way.

[0059] In this state, the first front engagement portion 44 and the first rear engagement portions 45a, 45b are positioned outside the fitting recess 25, and the grooves 53, 54, 55 of the stamp member 5 are also positioned outside the fitting recess 25 (disengaged state). As a result, as shown in Fig. 15, by moving the first front engagement portion 44 toward the opening of the groove portion 53, it can be removed from the opening of the groove portion 53. Furthermore, by moving the first rear engagement portions 45a, 45b toward the opening of the groove portions 54, 55, the first rear engagement portions 45a, 45b can also be removed from the openings of the groove portions 54, 55.

[0060] In this embodiment, the front insertion portion 42, the first front engagement portion 44, the rear insertion portions 43a, 43b, and the first rear engagement portions 45a, 45b are continuously molded from the same material as the thong 4, so the front insertion portion 42 and the front base 3 are elastic and flexible, and the rear insertion portions 43a, 43b are also elastic and flexible.

[0061] As a result, by moving the first front engagement portion 44 toward the opening of the groove 53 while pulling and bending the front insertion portion 42, the first front engagement portion 44 can be removed from the opening of the groove 53. Furthermore, by moving the first rear engagement portions 45a and 45b toward the opening of the grooves 54 and 55 while pulling and bending the rear insertion portions 43a and 43b, the first rear engagement portions 45a and 45b can also be removed from the openings of the grooves 54 and 55. Note that, because the sandal body 2 is also made of elastic urethane foam, the peripheries of the through-holes 23, 24a, and 24b of the sandal body 2 are also deformed when the front insertion portion 42 or the rear insertion portions 43a and 43b are pulled downward, and this deformation also facilitates movement of the first front engagement portion 44 and the first rear engagement portions 45a and 45b.

[0062] Here, the first front engagement portion 44 and the first rear engagement portions 45a, 45b are removed while pulling and bending the front insertion portion 42 and the rear insertion portions 43a, 43b, but the first front engagement portion 44 and the first rear engagement portions 45a, 45b may also be removed by bending the stamp member 5 while pulling and bending the front insertion portion 42 and the rear insertion portions 43a, 43b, or the first front engagement portion 44 and the first rear engagement portions 45a, 45b may be removed by bending only the stamp member 5.

[0063] This allows the stamp member 5 to be removed and a new stamp member 5 to be attached by reversing the above procedure, allowing the stylish sandals 1 to be used for a long period of time.

[0064] As described above, the sandal 1 of this embodiment comprises a sandal body 2 having a top surface US and a bottom surface LS opposite the top surface US in the vertical direction, a front part 3 fixed to the sandal body 2, a thong 4 having a front end FP and a rear end BP opposite the front end FP, the front part 3 being connected to the front end FP and the rear end BP being fixed to the sandal body 2, and a stamp member 5 having a stamp surface DS on its underside on which a predetermined design is applied by one of the recessed and protruding portions 50, the sandal body 2 having a fitting recess 25 formed so that the stamp member 5 can be fitted and detached in an area including a fixing position for fixing at least one of the front part 3 and the rear end BP on the bottom surface LS side, and the fitting recess At least one of the front end 3 and the rear end BP, which includes a fixed position within the area where the portion 25 is formed, has insertion portions 42, 43a, 43b inserted into the sandal body 2 in a direction intersecting the front-to-back direction, and first engagement portions 44, 45a, 45b are connected to the lower ends of the insertion portions 42, 43a, 43b.The stamp member 5 has second engagement portions 51, 52a, 52b that can engage with the first engagement portions 44, 45a, 45b in the vertical direction, and the second engagement portions 51, 52a, 52b that can be switched between an engagement state in which they engage with the first engagement portions 44, 45a, 45b and a release state in which they are released from engagement with the first engagement portions 44, 45a, 45b by moving relative to the first engagement portions 44, 45a, 45b.

[0065] With the sandals 1 configured as described above, when the protrusions 50 of the stamp surface DS wear out or a new stamp design is desired, the old stamp member 5 (the stamp member 5 with worn-out protrusions 50 of the stamp surface DS) can be removed by switching the state in which the first engagement portions 44, 45a, 45b engage with the old stamp member 5 and the state in which the first engagement portions 44, 45a, 45b disengage from the old stamp member 5. The new stamp member 5 can then be attached (replaced with a new stamp member 5) by engaging the first engagement portions 44, 45a, 45b with the second engagement portions 51, 52a, 52b of the new stamp member 5 and fitting the new stamp member 5 into the fitting recess 25. Therefore, the sandals 1 (pair of sandals S) of this embodiment can provide a stamping function for a long period of time. Furthermore, as described above, the sandals 1 (pair of sandals S) of this embodiment allow the stamp member 5 to be easily attached and detached, and also reliably prevent the thong 4 from falling off while walking.

[0066] In addition, in the sandal 1 of this embodiment, the insertion parts 42, 43a, 43b are inserted into the sandal body 2 so as to be movable in a direction intersecting the front-rear direction and the width direction, and the stamp member 5 is moved in the intersecting direction (insertion direction) of the insertion parts 42, 43a, 43b, and the first engagement part 4 While maintaining the engaged state between the first engagement portions 44, 45a, 45b and the second engagement portions 51, 52a, 52b, the state can be changed between an engaged state in which they are engaged in the engaging recess 25 and an unengaged state in which they are extended outside the engaging recess 25, and in the unengaged state, the first engagement portions 44, 45a, 45b and the second engagement portions 51, 52a, 52b can move relatively in the front-to-back or width direction, making it possible to switch between an engaged state and a released state.

[0067] As a result, when the stamp member 5 is engaged in the engagement recess 25, the relative movement between the first engagement portions 44, 45a, 45b and the second engagement portions 51, 52a, 52b is restricted, and the first engagement portions 44, 45a, 45b and the second engagement portions 51, 52a, 52b are maintained in an engaged state, so the stamp member 5 is securely fixed, and when the stamp member 5 is in an unengaged state outside the engagement recess 25, the stamp member 5 can be easily replaced (attached and detached).

[0068] In addition, in this embodiment, the thong 4 includes a pair of extension portions 40a, 40b extending rearward from the front end portion FP, and the rear end portion BP is the tip of each of the pair of extension portions 40a, 40b, and the pair of rear end portions BP, BP are fixed to the sandal body 2 at positions spaced apart in directions perpendicular to the front-to-back and up-down directions.

[0069] According to the sandal 1 having the above configuration, the thong 4 is fixed at the front end FP and the pair of rear end portions BP, BP, so that the thong 4 can be stably fixed and stable walking is possible.

[0070] In this embodiment, the fitting recess 25 is formed in a single area including three fixing positions for fixing the front part 3 on the bottom surface LS side and each of the pair of rear end parts BP, BP, and insertion portions 42, 43a, 43b are connected to the front part 3 and each of the pair of rear end parts BP, BP, and first engagement portions 44, 45a, 45b are connected to the lower ends of the insertion portions 42, 43a, 43b connected to the front part 3 and each of the pair of rear end parts BP, BP, and second engagement portions 51, 52a, 52b are provided at multiple locations corresponding to each first engagement portion 44, 45a, 45b.

[0071] With the sandal 1 configured as described above, the three fixing positions for fixing the thong 4 are connected to the stamp member 5, so the stamp member 5 is stably fixed. Also, since the fitting recess 25 is formed in a single area including the three fixing positions of the front part 3 and the pair of rear end parts BP, BP on the bottom surface LS side, the stamp member 5 is also located in a single area including the three fixing positions of the front part 3 and the pair of rear end parts BP, BP. This widens the stamp surface DS (stamp design area), reducing restrictions on the range of possible designs.

[0072] In addition, in this embodiment, the stamp surface DS of the stamp member 5 includes a reference surface BS facing downward and a convex portion 50 protruding downward from the reference surface BS, and the reference surface BS is positioned at the same level as the bottom surface LS of the sandal main body 2 when the stamp member 5 is engaged with the engaging recess 25.

[0073] According to the sandal 1 configured as described above, the reference surface BS of the stamp surface DS is positioned at the same level as the bottom surface LS of the sandal body 2, so that only the convex portion 50 protrudes from the bottom surface LS of the sandal 1, and therefore no unnecessary unevenness that could cause snagging when walking is formed.

[0074] Furthermore, in this embodiment, the insertion portions 42, 43a, 43b are formed in a shaft shape, the first engagement portions 44, 45a, 45b are formed to have a larger diameter than the insertion portions 42, 43a, 43b, and the stamp member 5 has grooves 53, 54, 55 that open on the upper surface opposite to the lower surface and on a side surface of the stamp member 5 that faces a direction perpendicular to the fitting direction with respect to the fitting recess 25, and that extend from the side surface of the stamp member 5 to a fixed position, and the grooves 53 , 54, 55 include first groove portions 53a, 54a, 55a including openings that allow the insertion portions 42, 43a, 43b to pass in a direction perpendicular to the vertical direction, and second groove portions 53b, 54b, 55b that are continuous with the first groove portions 53a, 54a, 55a in the vertical direction and allow the first engagement portions 44, 45a, 45b to pass in the same direction as the insertion portions 42, 43a, 43b, and the second engagement portions 51, 52a, 52b are formed at the boundaries between the first groove portions 53a, 54a, 55a and the second groove portions 53b, 54b, 55b in the fixed position.

[0075] According to the sandal 1 configured as described above, simply by sliding the first engagement portions 44, 45a, 45b along the grooves 53, 54, 55, the first engagement portions 44, 45a, 45b and the second engagement portions 51, 52a, 52b can be engaged with and released from each other.

[0076] Furthermore, in this embodiment, the stamp member 5 is made of natural rubber or synthetic rubber, which increases the gripping power of the stamp member 5 and improves the anti-slip function.

[0077] The present invention is not limited to the above-described embodiment, and can be modified as appropriate without departing from the spirit of the present invention.

[0078] In the above embodiment, in the non-engaged state in which the stamp member 5 is positioned outside the fitting recess 25, the first engagement portions 44, 45a, 45b and the second engagement portions 51, 52a, 52b are configured to be relatively movable in the front-rear or width direction, and to be switchable between an engaged state and a released state. However, this is not limiting. For example, as the state changes between the engaged state in which the stamp member 5 is fitted in the fitting recess 25 and the non-engaged state in which the stamp member 5 is positioned outside the fitting recess 25, the first engagement portions 44, 45a, 45b and the second engagement portions 51, 52a, 52b may move relatively in the up-down direction, and be switchable between the engaged state and the released state.

[0079] Specifically, at least the connection portions of the first engagement portions 44, 45a, 45b with the insertion portions 42, 43a, 43b are set to have a larger diameter than the insertion portions 42, 43a, 43b, and the stamp member 5 may be provided with hollow portions (holes) that open at positions corresponding to the first engagement portions 44, 45a, 45b, with the openings set to have a larger diameter than the insertion portions 42, 43a, 43b and a smaller diameter than the large diameter portions of the first engagement portions 44, 45a, 45b, and with the inner diameter expanding gradually toward the interior side of the opening.

[0080] In this way, the opening periphery of the hollow portion functions as the second engagement portions 51, 52a, 52b, and when changing from a non-engaged state to an engaged state (when the first engagement portions 44, 45a, 45b and the second engagement portions 51, 52a, 52b move relatively closer to each other in the vertical direction), the first engagement portions 44, 45a, 45b are pressed into the hollow portion (hole) from the opening, and the opening periphery of the hollow portion engages with the first engagement portions 44, 45a, 45b in the vertical direction as the second engagement portions 51, 52a, 52b.

[0081] Conversely, when switching from the mated state to the non-mated state (when the first engagement portions 44, 45a, 45b and the second engagement portions 51, 52a, 52b move relatively apart in the vertical direction), the first engagement portions 44, 45a, 45b in the hollow portions come out of the openings, and the vertical engagement between the first engagement portions 44, 45a, 45b and the second engagement portions 51, 52a, 52b is released. In this case, at least one of the first engagement portions 44, 45a, 45b and the stamp member 5 must be made of an elastically deformable material to allow the first engagement portions 44, 45a, 45b to pass through the openings. In this case, the first engagement portions 44, 45a, 45b are preferably formed in a shape tapering downward (e.g., an arrowhead shape, an inverted cone shape, etc.) to reduce contact resistance when passing through the openings.

[0082] In the above embodiment, the sandal body 2 has a laminated structure in which the first urethane foam 20 and the second urethane foam 21 are bonded together, but this is not limiting. For example, the sandal body 2 may have a single-layer structure formed from a single material. Also, in the above embodiment, the sandal body 2 has a two-layer structure, but it may have a laminated structure of, for example, three or more layers. Also, in the above embodiment, the same material (urethane foam) is laminated, but this is not limiting. For example, the sandal body 2 may have a laminated structure in which different materials (for example, urethane foam and rubber (natural rubber or synthetic rubber)) are bonded together.

[0083] In the above embodiment, the stamp member 5 is fitted into the fitting recess 25, and at the fixed position of the thong 4, the stamp member 5 and the thong 4 are indirectly connected via the insertion portions 42, 43a, 43b, the first engaging portion, and the first engaged portion. However, in addition to the above configuration, for example, as shown in Figure 16, a locking claw 57 may be protruded from the outer periphery of the stamp member 5, and a recess 26 may be provided on the inner surface of the fitting recess 25 into which the locking claw 57 can be inserted and which can be engaged in the vertical direction.

[0084] For example, if the outer periphery of the stamp member 5 is away from the fixed position of the thong 4, when the sandal body 2 bends during walking, there is a possibility that the stamp member 5 will not be able to bend in accordance with the curvature of the sandal body 2 (the end of the stamp member 5 may temporarily protrude from the fitting recess 25). However, by providing a locking claw 57 on the outer periphery of the stamp member 5 and by providing a recess 26 on the inner surface of the fitting recess 25 into which the locking claw 57 can be engaged, it is possible to prevent the end of the stamp member 5 from temporarily protruding from the fitting recess 25.

[0085] In the above embodiment, the first engagement portions 44, 45a, 45b are set to have a larger diameter than the insertion portions 42, 43a, 43b and the through holes 23, 24a, 24b through which the insertion portions 42, 43a, 43b are inserted, but this is not limiting. For example, the first engagement portions 44, 45a, 45b may be set to have a larger diameter than the insertion portions 42, 43a, 43b and a smaller diameter than the through holes 23, 24a through which the insertion portions 42, 43a, 43b are inserted. In other words, the first engagement portions 44, 45a, 45b may be configured to be able to be inserted (pass through) the through holes 23, 24a, 24b together with the insertion portions 42, 43a, 43b. Even in this case, the first engagement portions 44, 45a, 45b engage with the second engagement portions 51, 52a, 52b of the stamp member 5, thereby achieving the same effects and advantages as the above embodiment, and the thong 4 is fixed to the sandal body 2 in a state where it is prevented from slipping off, and the thong 4 can be easily replaced with another thong 4 (for example, a thong 4 with a different color or design than the original thong 4 (extension portions 40a, 40b)) together with or separately from the stamp member 5. Therefore, the sandal body 2, thong 4, and stamp member 5 can be combined as desired, making it possible to provide a sandal 1(S) that can be customized to suit the user's preferences.

[0086] In the above embodiment, the fitting recess 25 is formed in a single region that encompasses the first through-hole 23 through which the front insertion portion 42 continuing from the front part 3 is inserted, and the second through-holes 24a, 24b through which the rear insertion portions 43a, 43b connected to the pair of rear end portions BP, BP of the thong 4 are inserted, and the front insertion portion 42 and the pair of rear insertion portions 43a, 43b are all connected (fixed) to the stamp member 5 fitted into this fitting recess 25 via the first engagement portions 44, 45a, 45b and the second engagement portions 51, 52a, 52b, but this is not limited to this. In other words, the fitting recess 25 is formed in a region that encompasses all of the fixing positions for fixing the thong 4 (three positions: the front end FP and the pair of rear end portions BP, BP of the thong 4), so that the stamp member 5 is also positioned in a region that encompasses all of the fixing positions (three positions) for fixing the thong 4, but this is not limited to this.

[0087] For example, the arrangement of the fitting recesses 25 and stamp members 5 may be any of the arrangement patterns 1 to 11 shown in Fig. 17. Specifically, as in the above embodiment, the fitting recesses 25 and stamp members 5 may be arranged in an area including the front end FP (front part 3) of the thong 4 and the pair of rear end portions BP, BP. In addition to the pattern (Pattern 1) in which the recesses 25 (stamp members 5) are arranged, there are also patterns (Pattern 2) in which the fitting recesses 25 (stamp members 5) are arranged in an area that includes the pair of rear end portions BP, BP of the thong 4, patterns (Pattern 3, Pattern 4) in which the fitting recesses 25 (stamp members 5) are arranged in an area that includes the front end portion FP of the thong 4 and one of the pair of rear end portions BP, BP, and patterns (Pattern 5) in which the fitting recesses 25 (stamp members 5) are arranged in an area that includes only the front end portion FP of the thong 4 and one of the pair of rear end portions BP, BP. The patterns may include patterns (patterns 5, 6, and 7) in which the fitting recesses 25 (stamp members 5) are arranged in a plurality (two) of regions that independently encompass any two of the front end FP and the pair of rear end portions BP, BP of the thong 4, patterns (patterns 8, 9, and 10), and patterns (pattern 11) in which the fitting recesses 25 (stamp members 5) are arranged in a plurality (three) of regions that independently encompass the front end FP and the pair of rear end portions BP, BP of the thong 4. In these cases, the fixing positions of the thong 4 within the regions where the fitting recesses 25 (stamps) are arranged may be configured similarly to the above embodiment, so long as the first engaging portions 44, 45a, and 45b and the second engaging portions 51, 52a, and 52b can be engaged and disengaged. However, for fixing positions of the thong 4 outside the regions where the fitting recesses 25 (stamps) are arranged, various fixing methods (structures) may be employed as long as they can fix (or prevent) the thong 4 to the sandal body 2. [Explanation of symbols]

[0088] 1(S):Sandals 2: Sandal body 3:Maetsubo 4: Thong 5: Stamp material 25: Recessed portion for fitting 40a: Extension part 40b: Extension part 42: Insertion part (front insertion part) 43a: Insertion part (rear insertion part) 43b: Insertion part (rear insertion part) 44: First engagement portion (first front engagement portion) 45a: First engaging part (first rear engaging part) 45b: First engaging part (first rear engaging part) 50: Convex part 51: Second engagement portion (second front engagement portion) 52a: Second engagement portion (second rear engagement portion) 52b: Second engagement portion (second rear engagement portion) 53: Groove 53a: 1st groove part 53b: Second groove portion 54: Groove 54a: First groove portion 54b: Second groove portion 55: Groove 55a: First groove portion 55b: Second groove portion FP: Front end BP: rear end DS: Stamp surface BS: Reference surface LS: Bottom US: Top

Claims

1. A sandal body having a top surface and a bottom surface opposite to the top surface in the vertical direction; A front part fixed to the sandal body; a thong having a front end and a rear end opposite to the front end, the front end being connected to the front part and the rear end being fixed to the sandal body; a stamp member having a stamp surface on its underside, on which a predetermined design is applied by one of the recessed and protruding portions; The sandal body has a fitting recess formed in a region including a fixing position for fixing at least one of the front end and the rear end on the bottom surface side, so that the stamp member can be fitted and removed therein, At least one of the front end and the rear end, where the fixing position is included within the area where the fitting recess is formed, The sandal body has an insertion portion inserted in a direction intersecting the front-rear direction and the width direction, and a first engagement portion is connected to the lower end of the insertion portion. The stamp member has a second engagement portion that can engage with the first engagement portion in the vertical direction, and the second engagement portion can be switched between an engagement state in which it engages with the first engagement portion and a release state in which it is disengaged from the first engagement portion by moving relative to the first engagement portion.

2. The insertion portion is inserted into the sandal body so as to be movable in the intersecting direction, the stamp member is capable of changing its state between a fitted state in which it is fitted into the fitting recess and a non-fitted state in which it is protruded outside the fitting recess while maintaining a state in which the first engaging portion and the second engaging portion are engaged, by movement of the insertion portion in the intersecting direction; The sandal according to claim 1, wherein in the non-engaged state, the first engaging portion and the second engaging portion are relatively movable in the front-rear direction or the width direction, and are switchable between the engaged state and the released state.

3. The sandal of claim 1, wherein the first engaging portion and the second engaging portion move relative to each other in the vertical direction as the state changes between an engaged state in which the stamp member is engaged in the engaging recess and an unengaged state in which the stamp member is outside the engaging recess, thereby switching between the engaged state and the released state.

4. The thong includes a pair of extension portions extending rearward from the front end portion, the rear end portions are tip ends of the pair of extension portions, The sandal according to claim 1, wherein the pair of rear end portions are fixed to the sandal body at positions spaced apart in the front-rear direction and in a direction perpendicular to the up-down direction.

5. the fitting recess is formed in a single area including three fixing positions for fixing the front edge of the bottom surface and the pair of rear end portions, the insertion portions are connected to the front base and the pair of rear end portions, respectively, and the first engagement portions are connected to lower ends of the insertion portions connected to the front base and the pair of rear end portions, respectively; The sandal according to claim 4, wherein the second engaging portions are provided at a plurality of locations corresponding to the first engaging portions.

6. the stamp surface of the stamp member includes a reference surface facing downward and the protrusion protruding downward from the reference surface, The sandal according to claim 1 , wherein the reference surface is positioned at the same level as the bottom surface of the sandal body when the stamp member is fitted into the fitting recess.

7. The insertion portion is formed in a shaft shape, The first engaging portion is formed to have a larger diameter than the insertion portion, the stamp member has a groove portion that opens on an upper surface opposite to the lower surface and opens on a side surface of the stamp member that faces a direction perpendicular to a fitting direction with respect to the fitting recess, the groove portion extending from the side surface of the stamp member to the fixing position; The groove portion is a first groove portion including the opening, the first groove portion allowing the insertion portion to pass through in a direction perpendicular to the up-down direction; a second groove portion that is continuous with the first groove portion in the up-down direction and through which the first engaging portion passes in the same direction as the insertion portion, The sandal according to claim 2 , wherein the second engagement portion is formed at a boundary between the first groove portion and the second groove portion at the fixed position.

8. The sandal according to claim 1, wherein the stamp member is made of natural rubber or synthetic rubber.

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