Resin sandal

Abstract

To provide a resin sandal that can be comfortably bent in accordance with movement of a foot.SOLUTION: In a resin sandal, a sandal body 12 on which a sole is placed, and an arch part 14 formed in an arch shape from a body front part 12a of the sandal body 12, and covering an instep are integrally formed. In the arch part 14, a step part extending in a lateral direction from one side of the body front part 12a to the other side is formed. The sandal body 12 comprises a third groove part provided at a position corresponding to the step part, and extending in the lateral direction.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a resin sandal. [Background technology]

[0002] Resin sandals that are integrally molded from resin are known. Some resin sandals, for example, have a sandal body on which the sole of the foot rests and an arch portion formed in an arch shape from the sandal body. The arch portion covers the entire instep. In these resin sandals, the sandal body and arch portion are integrally molded from resin (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3235397 Summary of the Invention [Problem to be solved by the invention]

[0004] The arch of a resin sandal is formed with a relatively large area so as to cover the entire instep. Furthermore, the sandal body and arch are integrally molded from resin. Therefore, when a user walks wearing the resin sandals, it is difficult to bend the arch in accordance with the movement of the foot, making it difficult to maintain a comfortable fit.

[0005] To provide a resin sandal that can be bent comfortably in accordance with the movement of the foot. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention proposes the following means. (1) The resin sandal of the present invention is a resin sandal that is integrally formed with a sandal body on which the sole of the foot rests and an arch portion that is formed in an arch shape from the sandal body and covers the instep, and the arch portion is formed in a front-to-back direction where a step portion extending laterally from one side edge of the sandal body to the other side edge intersects with the horizontal direction, and the sandal body has a groove portion on its bottom surface that is provided at a position corresponding to the step portion and extends in the horizontal direction.

[0007] According to the above configuration, by providing a step in the arch portion, the step can be deformed in accordance with the movement of the foot. This allows the arch portion to bend flexibly in accordance with the movement of the foot. Furthermore, a groove is provided in the sandal body at a position corresponding to the step. This allows the groove to bend in accordance with the movement of the foot. This allows the sandal body to bend flexibly in accordance with the arch portion. In this way, the arch portion and the sandal body can be flexibly bent in accordance with the movement of the foot, allowing the resin sandal with an arch portion to bend comfortably in accordance with the movement of the foot, thereby improving the comfort of wearing the resin sandal. do.

[0008] (2) In the above aspect, the arch portion may be formed in a bellows shape by including a plurality of step portions, and the step portions may be spaced apart in a front-to-rear direction that intersects with the lateral direction.

[0009] According to this configuration, the arch portion is formed in an accordion-like shape by providing multiple step portions in the arch portion. Therefore, the multiple step portions can be deformed in accordance with the movement of the foot. This allows the arch portion to bend flexibly in accordance with the movement of the foot. Furthermore, groove portions are provided in the sandal body at positions corresponding to the multiple step portions. Therefore, the multiple groove portions can be deformed in accordance with the movement of the foot. This allows the sandal body to bend flexibly in accordance with the arch portion. In this way, the arch portion and the sandal body can be flexibly bent in accordance with the movement of the foot, allowing the resin sandal with an arch portion to bend comfortably in accordance with the movement of the foot, thereby improving the comfort of wearing the resin sandal. do.

[0010] (3) In the above aspect, the groove may be further provided between the plurality of step portions in the front-rear direction.

[0011] This structure further provides grooves between the multiple steps, allowing the sandal body to bend more flexibly to fit the arch, allowing the resin sandal to bend more comfortably in accordance with the movement of the foot.

[0012] (4) In the above aspect, the arch portion may have slits provided at positions adjacent to each other in the front-rear direction in at least one of the plurality of step portions.

[0013] According to this configuration, a slit is provided at a position adjacent to the step portion. This allows the step portion to deform more smoothly in accordance with the movement of the foot. This allows the arch portion to bend more flexibly in accordance with the movement of the foot. Therefore, the resin sandal can bend more comfortably in accordance with the movement of the foot. Furthermore, by providing a slit in the step portion, for example, when washing the resin sandals, water accumulated inside the resin sandals can be released through the slit. In addition, by providing a slit in the step portion, for example, good breathability can be ensured inside the resin sandals.

[0014] (5) In the above aspect, the arch portion may have a wall portion that rises from the sandal body and a cover portion that connects the wall portions, and the slit may be provided in the cover portion.

[0015] In order to allow the arch portion to bend flexibly in accordance with the movement of the foot, it is effective to have a flexible cover portion. Therefore, a slit is provided in the cover portion. This allows the arch portion to bend even more flexibly in accordance with the movement of the foot. Furthermore, since the arch wall is located relatively close to the ground when the user walks in the resin sandals, the wall is not provided with slits, allowing the foot to be well protected by the wall.

[0016] (6) In the above aspect, the sandal body may have other grooves on the bottom surface, the other grooves having a smaller groove width than the grooves, spaced apart in the front-to-rear direction.

[0017] By providing other grooves in addition to the grooves at the bottom of the sandal body, the sandal body 12 can bend comfortably in accordance with the movement of the foot. [Effects of the Invention]

[0018] According to the present invention, a resin sandal that can be bent comfortably in accordance with the movement of the foot can be provided. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a perspective view of a resin sandal according to a first embodiment of the present invention, viewed obliquely from above. [Figure 2] 1 is a side view showing a resin sandal according to a first embodiment. [Figure 3] 1 is a perspective view of a resin sandal according to a first embodiment, viewed obliquely from below. FIG. [Figure 4] FIG. 2 is a bottom view showing the resin sandal of the first embodiment. [Figure 5] 1 is a plan view showing a resin sandal according to a first embodiment. FIG. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 5. [Figure 7] FIG. 10 is a plan view showing a resin sandal according to a second embodiment of the present invention. [Figure 8]FIG. 10 is a bottom view showing a resin sandal according to a third embodiment of the present invention. [Figure 9] FIG. 10 is a bottom view showing a resin sandal according to a fourth embodiment of the present invention. [Figure 10] FIG. 10 is a bottom view showing a resin sandal according to a fifth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, a resin sandal according to one embodiment of the present invention will be described with reference to the drawings.

[0021] [First embodiment] <Resin sandals> Fig. 1 is a perspective view of the resin sandal of the first embodiment as seen obliquely from above, and Fig. 2 is a side view of the resin sandal of the first embodiment. As shown in Figures 1 and 2, the resin sandal 10 is, for example, integrally molded (formed) entirely from resin. The resin sandal 10 comprises a sandal body 12, an arch portion 14, and a rear wall portion 16. The resin sandal 10 also comprises a belt portion 17 on the rear wall portion 16. Both ends 17a, 17b of the belt portion 17 are attached by support pins 18 so as to be rotatable in the vertical direction, and the belt portion 17 is hooked, for example, around the ankle of the user. In the following description, the sandal body 12 side will be referred to as the lower side, and the arch portion 14 side as the upper side. The toe side of the user will be referred to as the front side, and the heel side as the rear side.

[0022] <Sandals> Fig. 3 is a perspective view of the resin sandal of the first embodiment as seen obliquely from below, and Fig. 4 is a bottom view of the resin sandal of the first embodiment. As shown in Figures 3 and 4, the sandal body 12 forms the portion on which the sole of the foot rests when the user wears the resin sandal 10. The sandal body 12 has a front portion 12a corresponding to the instep, a rear portion 12b corresponding to the heel, and a central portion 12c corresponding to the arch of the foot. The central portion 12c is curved upward in side view to fit the arch of the foot. In addition, the sandal body 12 has a plurality of first groove portions (other groove portions) 21 provided in the rear body portion 12b, a plurality of second groove portions (other groove portions) 22 provided in the front body portion 12a, and a plurality of third groove portions (groove portions) 23 provided in the front body portion 12a.

[0023] The plurality of first grooves 21 are formed on the bottom surface of the rear body portion 12b in a curved groove shape that extends laterally from one side edge 12b-1 to the other side edge 12b-2 and recesses upward. The plurality of first grooves 21 are formed in a curved shape that protrudes rearward. The plurality of first grooves 21 are formed at intervals in the front-rear direction that intersects with the lateral direction. Of the plurality of first grooves 21, the first grooves 21 located near the main body center portion 12c have both ends connected to the main body center portion 12c.

[0024] The second grooves 22 extend laterally from one side edge 12a-1 to the other side edge 12a-2 on the bottom surface of the main body front portion 12a, and are formed as curved grooves that are recessed upward. The second grooves 22 are formed with the same groove depth and groove width as the first grooves 21. The second grooves 22 are formed in a curved shape that protrudes forward. The second grooves 22 are formed at intervals in the front-rear direction. Of the second grooves 22, the second grooves 22 located near the main body center portion 12c have both ends connected to the main body center portion 12c. The multiple first groove portions 21 and the multiple second groove portions 22 are formed so that they have a smaller groove width, a smaller groove depth, and a different lateral width (smaller in the first embodiment) than the multiple third groove portions 23 described later.

[0025] The plurality of third grooves 23 are provided on the bottom surface of the main body front portion 12a between the plurality of second grooves 22. Specifically, the plurality of third grooves 23 are formed in the shape of curved grooves on the bottom surface of the main body front portion 12a, extending laterally from one side edge 12a-1 to the other side edge 12a-2 and recessed upward. The plurality of third groove portions 23 are formed to have a larger groove width W and a larger groove depth D (see FIG. 2) than the first groove portions 21 and the second groove portions 22. The plurality of third groove portions 23 are formed in a curved shape so as to protrude forward along the plurality of second groove portions 22. The plurality of third groove portions 23 are formed at intervals in the front-rear direction.

[0026] In the first embodiment, three third groove portions will be described as an example of the multiple third groove portions 23. Hereinafter, the three third groove portions 23 may be described as third groove portion 23A, third groove portion 23B, and third groove portion 23C. Third groove portion 23A, third groove portion 23B, and third groove portion 23C are arranged in this order from the front to the rear.

[0027] The plurality of first groove portions 21, the plurality of second groove portions 22, and the plurality of third groove portions 23 function to prevent slipping of the sandal body 12. Specifically, by extending the plurality of first groove portions 21, the plurality of second groove portions 22, and the plurality of third groove portions 23 in the horizontal direction, the sandal body 12 can be made less likely to slip in the front-to-back direction. Furthermore, by forming the plurality of first groove portions 21, the plurality of second groove portions 22, and the plurality of third groove portions 23 in a curved shape, the sandal body 12 can be made less likely to slip in the horizontal direction.

[0028] In particular, by forming the groove width W and groove depth D of the plurality of third groove portions 23 to be larger than those of the first groove portions 21 and the second groove portions 22, it is possible to make it even more difficult for the wheels to slip in the front-rear and sideways directions. The third groove portions 23A, 23B, and 23C will be described in detail later. In addition, although the first embodiment describes an example in which there are three third groove portions 23, the number of third groove portions 23 is not limited to three.

[0029] <Arch section> FIG. 5 is a plan view showing the resin sandal of the first embodiment. 1, 2, and 5, an arch portion 14 is integrally formed with the front body portion 12a of the sandal body 12. The arch portion 14 is formed in an arch shape extending continuously upward from the outer periphery of the front body portion 12a so as to cover the instep of the user when the user is wearing the resin sandal 10.

[0030] The arch portion 14 has a front wall portion (wall portion) 31 and a cover portion 32. The front wall portion 31 is raised upward from the outer periphery of the front body portion 12a. The cover portion 32 is connected to the upper side of the front wall portion 31. The front wall portion 31 and the cover portion 32 form an arch shape in a horizontal cross section from one side edge 12a-1 of the front body portion 12a to the other side edge 12a-2 (both sides, see Figure 4). The arch portion 14 is formed in the sandal body 12 so as to cover the toes and instep from the tip 12a-3 of the front body portion 12a to the front side 12c-1 of the center body portion 12c.

[0031] The arch portion 14 also has (is provided with) a plurality of arches 41 to 43 and a plurality of step portions 45, 46. In the first embodiment, the first arch 41, the second arch 42, and the third arch 43 are described as examples of the plurality of arches 41 to 43, but the arches can be selected arbitrarily. The first arch 41, the second arch 42, and the third arch 43 are arranged in this order from the front to the rear.

[0032] The plurality of step portions 45, 46 are disposed between the first arch 41 and the second arch 42, and further disposed between the second arch 42 and the third arch 43. The plurality of step portions 45, 46 extend laterally in an arch shape from one side edge 12a-1 of the main body front portion 12a to the other side edge 12a-2 (both, see FIG. 4 ) and are provided at intervals in the front-to-rear direction. In the first embodiment, the first step portion 45 and the second step portion 46 are described as examples of the plurality of step portions 45, 46, but the step portions can be selected arbitrarily. The first step portion 45 and the second step portion 46 are disposed in this order from front to rear. That is, the first step portion 45 is disposed between the first arch 41 and the second arch 42. The second step portion 46 is disposed between the second arch 42 and the third arch 43.

[0033] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. As shown in Figures 5 and 6, the first step portion 45 is formed in a stepped shape by the rear side 41a of the first arch 41, the front side 42a of the second arch 42, and the first bent portion 47. That is, the rear side 41a of the first arch 41 is disposed, for example, outwardly with a gap relative to the front side 42a of the second arch 42. The first bent portion 47 is connected to the rear side 41a of the first arch 41 and the front side 42a of the second arch 42. As a result, the first step portion 45 is formed in a stepped shape by the rear side 41a of the first arch 41, the front side 42a of the second arch 42, and the first bent portion 47.

[0034] When a user walks wearing the resin sandals 10, loads F1 and F2 are likely to act in the directions of the arrows on the arch portion 14. Therefore, when load F1 acts in the direction of the arrow on the first arch 41 and the second arch 42, for example, the first step portion 45 is deformed such that the rear side 41 a of the first arch 41 and the front side 42 a of the second arch 42 move away from each other due to displacement of the first bent portion 47. On the other hand, when a load F2 is applied to the first arch 41 and the second arch 42 in the direction of the arrow, the first step portion 45 is deformed in a direction such that the rear edge 41a of the first arch 41 and the front edge 42a of the second arch 42 overlap due to the displacement of the first bent portion 47.

[0035] The second step portion 46 is formed in a stepped shape by the rear side 42b of the second arch 42, the front side 43a of the third arch 43, and the second bent portion 48. That is, the rear side 42b of the second arch 42 is disposed, for example, outwardly with a gap relative to the front side 43a of the third arch 43. The second bent portion 48 is connected to the rear side 42b of the second arch 42 and the front side 43a of the third arch 43. As a result, the second step portion 46 is formed in a stepped shape by the rear side 42b of the second arch 42, the front side 43a of the third arch 43, and the second bent portion 48. Therefore, similar to the first step portion 45, the second step portion 46 deforms in response to the loads F1 and F2 such that the rear side 42b of the second arch 42 and the front side 43a of the third arch 43 move apart or overlap each other.

[0036] In this way, arch portion 14 is formed into an accordion-like shape by providing deformable first step portion 45 and second step portion 46 in arch portion 14. This allows arch portion 14 to deform appropriately to fit the instep of the user in response to loads F1 and F2 acting on arch portion 14 when the user walks wearing resin sandal 10.

[0037] In the first embodiment, three arches are used as an example of the plurality of arches 41 to 43, but the number of arches 41 to 43 is not limited to three. In addition, in the first embodiment, two step portions are used as an example of the plurality of step portions 45, 46, but the number of step portions is not limited to two. Furthermore, in the first embodiment, an example is described in which the first step portion 45 and the second step portion 46 are formed in the step shape shown in Figure 6, but the first step portion 45 and the second step portion 46 may also be formed in other step shapes.

[0038] <Third groove of the sandal body> 3 and 5, both end portions 45a, 45b of the first step portion 45 are provided at positions corresponding to both end portions 23A-1, 23A-2 of the third groove portion 23A in the front-rear direction. In other words, both end portions 23A-1, 23A-2 of the third groove portion 23A are provided at positions corresponding to both end portions 45a, 45b of the first step portion 45. Moreover, both end portions 46a, 46b of the second step portion 46 are provided at positions corresponding to both end portions 23C-1, 23C-2 of the third groove portion 23C in the front-rear direction. In other words, both end portions 23C-1, 23C-2 of the third groove portion 23C are provided at positions corresponding to both end portions 46a, 46b of the second step portion 46. The third groove 23B is further provided between the first step 45 and the second step 46 in the front-rear direction.

[0039] The third groove portions 23A, 23B, and 23C are formed with a groove width W (see FIG. 4) and a groove depth D (see FIG. 2) greater than those of the first groove portion 21 and the second groove portion 22. This allows the third groove portions 23A, 23B, and 23C to deform appropriately in accordance with the movement of the foot. This allows the main body front portion 12a to bend flexibly in accordance with the arch portion 14. In addition, a plurality of first grooves 21 are provided on the bottom surface of the rear body portion 12b, and a plurality of second grooves 22 are provided on the bottom surface of the front body portion 12a, allowing the sandal body 12 to bend comfortably in accordance with the movement of the foot.

[0040] As shown in FIGS. 1 and 5, the arch portion 14 has a first slit (slit) 51 provided along the first step portion 45 and a second slit (slit) 52 provided along the second step portion 46. The first slit 51 is provided in the center of the width direction of the cover portion 32 and at a position adjacent to the first step portion 45 in the front-to-rear direction (rear in the first embodiment). The first slit 51 is formed along the first step portion 45. The first slit 51 penetrates the arch portion 14 from the outside to the inside. The first slit 51 may also be provided at a position adjacent to the front of the first step portion 45.

[0041] The second slit 52 is provided in the center of the cover portion 32 in the width direction and at a position adjacent to the second step portion 46 in the front-to-rear direction (rear in the first embodiment). The second slit 52 is formed along the second step portion 46. The second slit 52 penetrates from the outer side to the inner side of the arch portion 14. The second slit 52 may also be provided at a position adjacent to the front of the second step portion 46.

[0042] In the first embodiment, an example is described in which a first slit 51 is provided along the first step portion 45 and a second slit 52 is provided along the second step portion 46, but a slit may be provided along either the first step portion 45 or the second step portion 46.

[0043] <Back wall> The rear wall 16 rises upward from the outer peripheral edge of the rear body portion 12b and is formed integrally with both ends of the front wall 31. The rear wall 16 has both side walls 16a, 16b on both sides, and both ends 17a, 17b of the belt 17 are attached to the side walls 16a, 16b of the rear wall 16 by support pins 18 so that the belt 17 can rotate up and down. The belt 17 is used by being hooked, for example, around the ankles of the user.

[0044] As described above, according to the resin sandal 10 of the first embodiment, as shown in Figures 1 to 3, the arch portion 14 is formed in an accordion-like shape by providing the first step portion 45 and the second step portion 46 in the arch portion 14. This allows the first step portion 45 and the second step portion 46 to deform in accordance with the movement of the foot. This allows the arch portion 14 to bend flexibly in accordance with the movement of the foot.

[0045] Furthermore, a third groove portion 23A is provided on the bottom surface of the front body portion 12a at a position corresponding to the first step portion 45, and a third groove portion 23C is provided at a position corresponding to the second step portion 46. The third groove portions 23A and 23C are formed with a groove width W (see FIG. 4) and a groove depth D larger than those of the first groove portion 21 and the second groove portion 22. This allows the third groove portions 23A and 23C to deform in accordance with the movement of the foot. This allows the front body portion 12a to flex flexibly in accordance with the arch portion 14.

[0046] In this way, by allowing the arch portion 14 and the front body portion 12a to flex flexibly in accordance with the movement of the foot, the sandal front portion 10a including the arch portion 14 and the front body portion 12a in the resin sandal 10 can bend comfortably in accordance with the movement of the foot, thereby improving the comfort of wearing the resin sandal 10. do.

[0047] 2 and 3, a third groove 23B is further provided between the first step 45 and the second step 46. Similar to the third grooves 23A and 23C, the third groove 23B has a groove width W (see FIG. 4) and a groove depth D greater than those of the first groove 21 and the second groove 22. This allows the front body portion 12a to bend more flexibly in accordance with the arch portion 14. This allows the front sandal portion 10a of the resin sandal 10 to bend more comfortably in accordance with the movement of the foot.

[0048] Furthermore, as shown in FIG. 5, a first slit 51 is provided in the first step portion 45, and a second slit 52 is provided in the second step portion 46. This allows the first step portion 45 and the second step portion 46 to deform more smoothly in accordance with the movement of the foot. This allows the arch portion 14 to bend more flexibly in accordance with the movement of the foot. Therefore, in the resin sandal 10, the sandal front portion 10a can bend more comfortably in accordance with the movement of the foot.

[0049] Furthermore, by providing the first slit 51 in the first step portion 45 and the second slit 52 in the second step portion 46, for example, when washing the resin sandal 10, water that has accumulated inside the resin sandal 10 can be released through the first slit 51 and the second slit 52. In addition, by providing the first slit 51 in the first step portion 45 and the second slit 52 in the second step portion 46, for example, good breathability inside the resin sandal 10 can be ensured.

[0050] Here, in order to allow arch portion 14 to bend flexibly in accordance with the movement of the foot, it is effective to flexibly bend cover portion 32. Therefore, first slit 51 and second slit 52 are provided in cover portion 32. This allows arch portion 14 to bend even more flexibly in accordance with the movement of the foot. 1 and 2, the front wall 31 of the arch portion 14 is located relatively close to the ground when the user walks wearing the resin sandal 10. Therefore, the first slit 51 and the second slit 52 are not provided in the front wall 31. This allows the front wall 31 to provide good protection for the foot.

[0051] Next, resin sandals according to second to fifth embodiments will be described with reference to Figures 7 to 10. In the resin sandals according to second to fifth embodiments, the same or similar components as those of the resin sandal 10 according to the first embodiment will be designated by the same reference numerals and detailed description thereof will be omitted.

[0052] [Second embodiment] FIG. 7 is a plan view showing the resin sandal of the second embodiment. As shown in Figure 7, the resin sandal 100 has the first slit 51 of the first embodiment replaced with a pair of first slits (slits) 101, and the second slit 52 replaced with a pair of second slits (slits) 102, but the other configurations are the same as those of the first embodiment.

[0053] The pair of first slits 101 are provided at positions adjacent to each other on the left and right sides of the front wall portion 31 of the arch portion 14 and adjacent to each other in the front-to-rear direction (rear in the second embodiment) in the first step portion 45. The pair of first slits 101 are formed along the first step portion 45. The pair of first slits 101 penetrate from the outside to the inside of the arch portion 14. The pair of first slits 101 may also be provided at positions adjacent to each other in the front of the first step portion 45.

[0054] The pair of second slits 102 are provided at positions adjacent to each other on the left and right sides of the front wall portion 31 of the arch portion 14 and adjacent to each other in the front-to-rear direction (rear in the second embodiment) in the second step portion 46. The pair of second slits 102 are formed along the second step portion 46. The pair of second slits 102 penetrate from the outside to the inside of the arch portion 14. The pair of second slits 102 may also be provided at positions adjacent to each other in the front of the second step portion 46.

[0055] In the second embodiment, an example is described in which a pair of first slits 101 are provided along the first step portion 45 and a pair of second slits 102 are provided along the second step portion 46, but slits may be provided along either the first step portion 45 or the second step portion 46.

[0056] Here, the arch portion 14 has an intersection 33 where the front wall 31 and the cover 32 intersect, which is curved convexly outward. This makes it difficult for the intersection 33 to flex flexibly in accordance with foot movement. Therefore, a pair of first slits 101 and a pair of second slits 102 are provided adjacent to the left and right sides of the front wall 31. This allows the intersection 33 to flex flexibly in accordance with foot movement. This allows the sandal front portion 100a to bend more comfortably in accordance with foot movement. The sandal front portion 100a corresponds to the sandal front portion 10a of the first embodiment. Additionally, according to the resin sandal 100 of the second embodiment, the same actions and effects as those of the resin sandal 10 of the first embodiment can be obtained.

[0057] [Third embodiment] FIG. 8 is a bottom view showing the resin sandal of the third embodiment. As shown in Fig. 8, the resin sandal 110 has four third grooves 23 (groove portions) as multiple third grooves instead of the three third grooves 23 of the first embodiment, but the other configurations are the same as those of the first embodiment. The four third grooves 23 extend laterally from one side edge 12a-1 to the other side edge 12a-2 on the bottom surface of the front body 12a, and are formed as curved grooves that are recessed upward. The four third grooves 23 are formed in a curved shape that protrudes forward along the multiple second grooves 22. The four third grooves 23 are formed at intervals in the front-rear direction.

[0058] Hereinafter, the four third groove portions 23 may be referred to as third groove portion 23A, third groove portion 23B, third groove portion 23C, and fourth groove portion 23D. Third groove portion 23A, third groove portion 23B, third groove portion 23C, and fourth groove portion 23D are arranged in this order from the front to the rear.

[0059] That is, the resin sandal 110 is obtained by adding a fourth groove portion 23D to the resin sandal 10 of the first embodiment. The fourth groove portion 23D is provided between the third groove portion 23C and the main body central portion 12c in the front-rear direction. Like the third groove portions 23A, 23B, and 23C, the fourth groove portion 23D has a groove width W and a groove depth D (see FIG. 2) that are larger than those of the first groove portion 21 and the second groove portion 22.

[0060] This allows the third groove portions 23A, 23B, 23C, and 23D to deform more appropriately in accordance with the movement of the foot, thereby allowing the main body front portion 12a to bend more flexibly in accordance with the arch portion 14 (see FIG. 5). Additionally, according to the resin sandal 110 of the third embodiment, the same actions and effects as those of the resin sandal 10 of the first embodiment can be obtained.

[0061] [Fourth embodiment] FIG. 9 is a bottom view showing the resin sandal of the fourth embodiment. As shown in Figure 9, the resin sandal 120 has the multiple first groove portions 21, multiple second groove portions 22, and third groove portions 23 of the first embodiment replaced with multiple first groove portions (other groove portions) 121, multiple second groove portions (other groove portions) 122, and third groove portions 123 (groove portions), and the other configurations are the same as those of the first embodiment.

[0062] The first grooves 121 are formed on the bottom surface of the rear body portion 12b, extending linearly in the horizontal direction from one side edge 12b-1 to the other side edge 12b-2 and curved upwardly. The first grooves 121 are formed at intervals in the front-to-rear direction, which intersects with the horizontal direction.

[0063] The second grooves 122 are formed on the bottom surface of the front body portion 12a in a linear manner extending laterally from one side edge 12a-1 to the other side edge 12a-2 and in a curved groove shape recessed upward. The second grooves 122 are formed with the same groove depth and groove width as the first grooves 121. The second grooves 122 are formed at intervals in the front-rear direction.

[0064] The plurality of third grooves 123 are formed on the bottom surface of the main body front portion 12a in a linear manner extending laterally along the plurality of second grooves 122 from one side edge 12a-1 to the other side edge 12a-2, and are curved grooves that are recessed upward. The plurality of third grooves 123 are formed at intervals in the front-rear direction. The plurality of third grooves 123 are formed with a larger groove width W and a larger groove depth D (see FIG. 2) than the first grooves 121 and the second grooves 122.

[0065] Three third groove portions will be described as an example of the multiple third groove portions 123. Hereinafter, the three third groove portions 123 may be described as third groove portion 123A, third groove portion 123B, and third groove portion 123C. Third groove portion 123A, third groove portion 123B, and third groove portion 123C are arranged in this order from front to rear. Ends 123A-1 and 123A-2 of third groove portion 123A are provided at positions corresponding to ends 45a and 45b of first step portion 45 (see FIG. 5). Ends 123C-1 and 123C-2 of third groove portion 123C are provided at positions corresponding to ends 46a and 46b of second step portion 46 (see FIG. 5). The third groove portion 123B is further provided between the first step portion 45 and the second step portion 46 in the front-rear direction.

[0066] The third groove portions 123A, 123B, and 123C are formed with a groove width W (see FIG. 4) and a groove depth D (see FIG. 2) greater than those of the first groove portion 121 and the second groove portion 122. This allows the third groove portions 123A, 123B, and 123C to deform appropriately in accordance with the movement of the foot. This allows the main body front portion 12a to bend flexibly in accordance with the arch portion 14 (see FIG. 5). Furthermore, a plurality of first grooves 121 are provided on the bottom surface of the rear body portion 12b, and a plurality of second grooves 122 are provided on the bottom surface of the front body portion 12a, allowing the sandal body 12 to bend comfortably in accordance with the movement of the foot. Additionally, according to the resin sandal 120 of the fourth embodiment, it is possible to obtain the same functions and effects as those of the resin sandal 10 of the first embodiment.

[0067] [Fifth embodiment] FIG. 10 is a bottom view showing the resin sandal of the fifth embodiment. As shown in Figure 10, the resin sandal 130 has four third grooves 123 instead of the three third grooves 123 of the fourth embodiment, but the other configurations are the same as those of the fourth embodiment. The four third grooves 123 extend laterally from one side edge 12a-1 to the other side edge 12a-2 on the bottom surface of the main body front portion 12a, and are formed as curved grooves that are recessed upward. The four third grooves 123 are formed linearly along the multiple second grooves 122. The four third grooves 123 are formed at intervals in the front-rear direction.

[0068] Hereinafter, the four third groove portions 123 may be described as third groove portion 123A, third groove portion 123B, third groove portion 123C, and fourth groove portion D. Third groove portion 123A, third groove portion 123B, third groove portion 123C, and fourth groove portion D are arranged in this order from the front to the rear.

[0069] That is, the resin sandal 130 is obtained by adding a fourth groove portion 123D to the resin sandal 120 of the fourth embodiment. The fourth groove portion 123D is provided between the third groove portion 123C and the main body central portion 12c in the front-rear direction. Like the third groove portions 123A, 123B, and 123C, the fourth groove portion 123D has a groove width W and a groove depth D (see FIG. 2) that are larger than those of the first groove portion 121 and the second groove portion 122.

[0070] This allows the third groove portions 123A, 123B, 123C, and 123D to deform more appropriately in accordance with the movement of the foot, thereby allowing the main body front portion 12a to bend more flexibly in accordance with the arch portion 14 (see FIG. 5). Additionally, according to the resin sandal 130 of the fifth embodiment, it is possible to obtain the same functions and effects as the resin sandal 10 of the first embodiment.

[0071] The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0072] For example, in the above embodiment, the first step portion 45 and the second step portion 46 are described as examples of multiple step portions provided in the arch portion 14, but this is not limiting. As another example, the arch portion 14 may be provided with one step portion. By providing one step portion in the arch portion 14, the step portion can be deformed in accordance with the movement of the foot. This allows the arch portion 14 to bend flexibly in accordance with the movement of the foot.

[0073] Furthermore, a third groove can be provided on the bottom surface of the front body portion 12a at a position corresponding to the step portion. The third groove is formed with a larger groove width and depth than the first groove portion 21 and the second groove portion 22. This allows the third groove to deform in accordance with the movement of the foot. This allows the front body portion 12a to flex flexibly in accordance with the arch portion 14.

[0074] In this way, by allowing the arch portion 14 and front body portion 12a to flex flexibly in accordance with the movement of the foot, the front portion of the sandal, which has a step portion in the arch portion 14 and a third groove portion on the bottom surface of the front body portion 12a, can be bent comfortably in accordance with the movement of the foot. Therefore, even when the arch portion 14 has one step portion, the comfort of the resin sandal can be improved, as in the above embodiment. do.

[0075] In addition, within the scope of the spirit of the present invention, the components in the above-described embodiments may be replaced with well-known components as appropriate, and the above-described modifications may be combined as appropriate. [Explanation of symbols]

[0076] 10,100,110,120,130 Resin Sandals 12 Sandal body 12a Front of main body 12a-1 One side 12a-2 The other side 14 Arch 21 First groove portion (other groove portion) 22 Second groove portion (another groove portion) 23,23A,23B,23C,23D 3rd groove (groove) 31 Front wall (wall) 32 Cover 45 First step portion (one of multiple step portions) 46 Second step portion (the other of the multiple step portions) 51,101 First slit (slit) 52,102 Second slit (slit) 121 First groove portion (other groove portion) 122 Second groove portion (other groove portion) 123,123A,123B,123C,123D Third groove (groove)

Claims

1. A resin sandal is formed integrally with a sandal body on which the sole of the foot rests and an arch portion formed in an arch shape from the sandal body to cover the instep, The arch portion is A step portion extending laterally from one side edge to the other side edge of the sandal body is formed in a front-to-rear direction intersecting the lateral direction, The sandal body includes: a groove portion on a bottom surface, the groove portion being provided at a position corresponding to the step portion and extending in the lateral direction; Resin sandals characterized by:

2. The arch portion is The step portion includes a plurality of the step portions, The plurality of step portions are spaced apart in a front-rear direction intersecting the lateral direction, thereby forming a bellows shape. The resin sandal according to claim 1.

3. The groove portion is further provided between the plurality of step portions in the front-rear direction, The resin sandal according to claim 2.

4. The arch portion is At least one of the plurality of step portions has slits provided at positions adjacent to each other in the front-rear direction. The resin sandal according to claim 2 or 3.

5. The arch portion is A wall portion erected from the sandal body; a cover portion connecting the wall portion, The slit is provided in the cover portion. The resin sandal according to claim 4.

6. The sandal body includes: other grooves having a groove width smaller than that of the grooves are provided on the bottom surface at intervals in the front-rear direction; The resin sandal according to claim 3.

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