Adjustable sandal

Abstract

The application belongs to the technical field of sandals, and particularly relates to an adjustable sandal, which comprises a sole, a shoelace, a toe lace and a heel lace. The sole comprises a toe part, an arch part and a heel part. The shoelace is arranged on the sole. The toe lace is connected with the shoelace and located at one end of the shoelace. The heel lace is connected with the shoelace and located at the other end of the shoelace. The adjustable sandal further comprises an adjusting assembly, one end of which is matched with the sole, and the other end of which is matched with the toe lace. The adjusting assembly can adjust the toe lace to the best position according to the foot demand of a wearer. The application has the beneficial effects that the toe lace can be adjusted to the best position according to the foot demand of the wearer through the installation of the adjusting assembly, and the problem that the existing sandal cannot adapt to different foot shapes and characteristics due to the fixed structure can be solved, and the problem of ill-fitting or discomfort caused by the unadjustable toe lace position can be avoided.

Description

Technical Field

[0001] This application belongs to the field of sandal technology, and particularly relates to an adjustable sandal. Background Technology

[0002] Sandals, as a common type of footwear, are characterized by exposing the skin of the feet. Their origins can be traced back to the evolution of foot coverings in primitive times. In terms of product differentiation, the core difference between sandals and slippers lies in the area of ​​the foot exposed. Compared to slippers, sandals usually have a larger area of ​​exposed foot that is more suitable for daily life and specific occasions. At the same time, sandals have strong ventilation, and some designs, due to their regular structure and appearance, can be used in formal occasions, further expanding their application range.

[0003] However, in actual use, existing sandals have many defects. Due to the differences in the shape, physiological characteristics, and size of different wearers' feet, such as foot width, arch height, and toe distribution, even if the wearer chooses sandals that match their foot size, the standard fixed structure is difficult to adapt to the above-mentioned individual differences. This leads to many wearers experiencing ill-fitting or insufficient comfort during wear. In particular, for sandals with toe straps, the fixing position and tightness of the toe straps cannot be adjusted according to the size of the gaps between the wearer's toes and the shape of the toes, which is more likely to cause problems such as local compression and friction. This needs to be improved. Utility Model Content

[0004] The purpose of this application is to provide an adjustable sandal that can solve the above-mentioned problems.

[0005] The purpose of this application is to provide an adjustable sandal, comprising: The sole of the shoe includes the toe area, arch area, and heel area; Shoelaces, located on the sole of the shoe; Toe strap, which connects to the shoelaces and is located at one end of the shoelaces; The heel strap connects to the shoelaces and is located at the other end of the shoelaces; It also includes an adjustment component, one end of which engages with the sole and the other end with the toe strap, which can adjust the toe strap to the optimal position according to the wearer's foot needs.

[0006] The aforementioned adjustable sandal, by installing an adjustment component, allows the toe straps to be adjusted to the optimal position according to the wearer's foot needs. This solves the problem of existing sandals, due to their fixed structure, being unable to adapt to different foot shapes and characteristics, and avoids the fit or discomfort caused by the inability to adjust the position of the toe straps. Simultaneously, the wearer can adjust the position of the toe straps according to their own toe spacing, toe shape, and other characteristics, ensuring a snug fit between the toe straps and the foot, avoiding localized compression or friction, effectively improving wearing comfort and enhancing the versatility of the sandal.

[0007] Furthermore, the adjustment component includes: An insert is provided on the toe band; A mating part, provided at the toe portion, includes a mounting part and a locking part provided on the mounting part, the locking part mating with the insert; The locking part has multiple parts, and the toe part has a through hole. The insert passes through the through hole and is inserted into the locking part to cooperate with the locking part.

[0008] The adjustment assembly includes an insert mounted on the toe strap and a mating part mounted on the toe area. The mating part has multiple locking parts on its mounting section. The insert passes through a through-hole in the toe area and engages with the locking parts. The multiple locking parts provide the toe strap with multiple adjustment positions. The wearer can select different locking parts to adjust the toe strap position to accommodate differences in toe distribution, spacing, etc. However, to maintain wearing comfort, the number of locking parts is limited to a maximum of three. The stable mating structure between the insert and the locking parts prevents the toe strap from shifting during wear, avoiding the problem of the adjustment structure loosening easily. Simultaneously, the through-hole provides guidance for the insert, ensuring the accuracy of the adjustment process.

[0009] Furthermore: the insert includes a rod body and an L-shaped locking rod disposed on the rod body, wherein there are two locking rods and both locking rods are made of elastic metal material.

[0010] The insert has two L-shaped locking rods made of elastic metal. These rods possess excellent elastic deformation capabilities, allowing them to be compressed during insertion into the locking part, facilitating smooth entry into the mating position. After insertion, they quickly reset and engage with the locking part, ensuring reliable locking. The symmetrical arrangement of the two locking rods ensures more even force distribution, preventing instability caused by unilateral locking. Furthermore, the elastic properties provide the locking rods with fatigue resistance, extending the service life of the adjustment structure.

[0011] Furthermore, the locking part includes: A mating groove is provided on the locking part; The guide protrusion is located inside the mating groove, and its diameter gradually decreases from the outside to the inside. A locking groove is provided on the guide protrusion and is used to engage with the locking lever; The guide protrusions form an entry channel for the locking rod to enter, and the guide protrusions and the inner wall of the mating groove form an exit channel for the locking rod to exit.

[0012] In this application, as the locking lever is inserted, after it enters the channel, the two compressed locking levers reset until they contact the locking groove, completing the locking. At this point, the insert cannot be separated from the locking part by pulling outwards; separation is only possible by continuing to insert downwards. When disassembly is required, simply continue pushing the insert downwards, causing the locking lever to gradually move from the entry channel to the exit channel. Once in the exit channel, the insert can be removed by pulling outwards. When the user wears shoes, the insert is kept in an outward-pulling state due to the thickness of the instep, thus maintaining the fit between the insert and the locking part.

[0013] The locking mechanism features guide protrusions within its mating groove. These protrusions gradually decrease in diameter from the outside in, and their locking grooves engage with the locking rod. Adjacent guide protrusions form an entry channel, while the guide protrusions and the inner wall of the mating groove form an exit channel. The gradual change in diameter of the guide protrusions guides the insertion of the locking rod. The engagement of the locking groove and the locking rod creates a lock, preventing accidental separation of the inserted component under external force and ensuring the stability of the toe strap during wear. The entry channel allows the locking rod to enter, and the exit channel allows it to exit. The locking rod must be inserted further downwards to move from the entry channel to the exit channel. This design avoids separation caused by outward pulling forces from foot movements during use and allows for easy disassembly—simply push downwards and pull out. This convenient operation solves the problem of difficult or accidental disassembly after locking the adjustment mechanism.

[0014] Furthermore, the diameter of the inlet channel gradually increases from the outer side of the guide protrusion to the inner end of the guide protrusion, while the diameter of the outlet channel remains unchanged from the inside.

[0015] The diameter of the inlet channel gradually increases from the outer side of the guide protrusion to the inner end, while the diameter of the outlet channel remains constant from the inside. The gradual change in the inlet channel diameter matches the elastic deformation of the locking lever. As the insertion depth of the locking lever increases, the channel space gradually increases, providing space for the locking lever to reset and facilitating its engagement with the locking groove. The constant diameter of the outlet channel ensures that the locking lever can move stably along the path during withdrawal, avoiding jamming caused by changes in channel dimensions.

[0016] Furthermore, a pre-reserved groove is provided inside the heel part, and a buffer layer is provided inside the pre-reserved groove.

[0017] The heel area has a pre-drilled groove with a cushioning layer. This cushioning layer effectively absorbs the impact of the heel striking the ground while walking, reducing pressure on the heel and ankle and protecting the foot joints. This cushioning layer can be made of EVA, TPU, or PU material.

[0018] Furthermore, the heel strap includes a strap body and a metal ring connected to the strap body, and the shoe strap is provided with a positioning element connected to the metal ring.

[0019] The heel strap is connected to a positioning element via a metal ring, which is located on the shoelace. This strap and metal ring form an adjustable structure. Velcro is installed on the strap, and the adjustment is made by the interaction of the Velcro and metal ring to accommodate different wearers' ankle circumference, heel shape, and other characteristics. This allows for adjustment of the tightness and position of the heel strap, ensuring it stably secures the foot without creating an overly tight or restrictive feeling.

[0020] The beneficial effects of this application are: 1. By installing adjustment components, the toe strap can be adjusted to the optimal position according to the wearer's foot needs, which can solve the problem that existing sandals cannot adapt to different foot shapes and characteristics due to their fixed structure, and avoid the problem of ill-fitting or uncomfortable feet caused by the inability to adjust the position of the toe strap. 2. Wearers can adjust the position of the toe straps according to their own toe spacing, toe shape and other characteristics to ensure the fit between the toe straps and the feet, avoid local compression or friction, effectively improve wearing comfort and enhance the universality of the sandals; 3. In this application, as the locking rod is inserted, after it enters the channel, the two compressed locking rods reset until they contact the locking groove and complete the locking. At this time, the insert cannot be separated from the locking part by pulling it outward; it can only be separated by continuing to insert it downward. When disassembly is required, simply continue to push the insert downward so that the locking rod gradually moves from the entry channel to the exit channel. Once it enters the exit channel, the insert can be removed by pulling it outward. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of the structure of the adjusting component of this utility model; Figure 4 This is a schematic diagram of the locking lever.

[0022] The reference numerals in the figure are as follows: 100, sole; 110, toe; 120, arch; 130, heel; 200, shoelace; 300, toe strap; 400, heel strap; 410, strap body; 420, metal ring; 430, positioning element; 500, insert; 510, rod; 520, locking rod; 600, mating part; 610, mounting part; 620, locking part; 621, mating groove; 622, guide protrusion; 623, locking groove; 624, entry channel; 625, exit channel; 700, reserved groove; 710, cushioning layer. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0024] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0025] The adjustable sandals provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0026] Example 1: like Figures 1 to 3 As shown in the figure, this application provides an adjustable sandal, including: The sole 100 includes the toe area 110, the arch area 120, and the heel area 130; Shoelace 200, set on sole 100; Toe strap 300 is connected to shoelace 200 and located at one end of shoelace 200; Heel strap 400 is connected to shoelace 200 and located at the other end of shoelace 200; It also includes an adjustment component, one end of which engages with the sole 100 and the other end with the toe strap 300, which can adjust the toe strap 300 to the optimal position according to the wearer's foot needs.

[0027] In some embodiments of this application, such as Figure 1 As shown, the aforementioned adjustable sandal, by installing an adjustment component, allows the toe strap 300 to be adjusted to the optimal position according to the wearer's foot needs. This solves the problem that existing sandals, due to their fixed structure, cannot adapt to different foot shapes and characteristics, and avoids the fit or discomfort caused by the inability to adjust the position of the toe strap 300. Simultaneously, the wearer can adjust the position of the toe strap 300 according to their own toe spacing, toe shape, and other characteristics, ensuring a close fit between the toe strap 300 and the foot, avoiding localized compression or friction, effectively improving wearing comfort, and enhancing the sandal's versatility.

[0028] Furthermore, the heel strap 400 includes a strap body 410 and a metal ring 420 connected to the strap body 410, and the shoelace 200 is provided with a positioning member 430 connected to the metal ring 420.

[0029] The heel strap 400 has a strap body 410 connected to a positioning element 430 via a metal ring 420. The positioning element 430 is located on the shoelace 200. The strap body 410 and the metal ring 420 form an adjustable structure. The strap body 410 is equipped with Velcro, which can be adjusted by cooperating with the metal ring 420 to adapt to the characteristics of different wearers, such as ankle thickness and heel shape. This allows for adjustment of the tightness and position of the heel strap 400, ensuring that the heel strap 400 can stably fix the foot without creating an overly tight feeling of restriction.

[0030] Example 2: This application provides an adjustable sandal. In addition to the above-mentioned technical features, the adjustable sandal of this application also includes the following technical features.

[0031] like Figures 2 to 4 As shown, the adjustment components include: Insert 500 is mounted on toe strap 300; The mating part 600 is provided on the toe part 110 and includes a mounting part 610 and a locking part 620 provided on the mounting part 610. The locking part 620 mates with the insert 500. The locking part 620 is provided in multiple parts, and the toe part 110 is provided with a through hole. The insert 500 passes through the through hole and is inserted into the locking part 620 and cooperates with the locking part 620.

[0032] In this embodiment, the adjustment component includes an insert 500 mounted on the toe strap 300 and a mating part 600 mounted on the toe portion 110. The mounting portion 610 of the mating part 600 has multiple locking parts 620. The insert 500 passes through a through hole in the toe portion 110 and engages with the locking parts 620. The installation of multiple locking parts 620 provides the toe strap 300 with multiple adjustment positions. The wearer can select different locking parts 620 according to their needs to adjust the position of the toe strap 300 to accommodate differences in toe distribution, toe gap size, etc. However, to maintain wearing comfort, the number of locking parts 620 is limited to a maximum of three. The mating structure between the insert 500 and the locking parts 620 is stable, preventing displacement of the toe strap 300 during wear and avoiding the problem of loosening of the adjustment structure. Simultaneously, the through hole provides guidance for the insert 500, ensuring the accuracy of the adjustment process.

[0033] Example 3: This application provides an adjustable sandal. In addition to the above-mentioned technical features, the adjustable sandal of this application also includes the following technical features.

[0034] like Figure 3 and Figure 4 As shown, the insert 500 includes a rod body 510 and an L-shaped locking rod 520 disposed on the rod body 510. There are two locking rods 520, and both locking rods 520 are made of elastic metal material.

[0035] In this embodiment, the insert 500 has two L-shaped locking rods 520 on its rod body 510, and the locking rods 520 are made of elastic metal. The elastic metal locking rods 520 have good elastic deformation capability, can be compressed when inserted into the locking part 620, facilitating smooth entry into the mating position, and can quickly reset after insertion to form a mating position with the locking part 620, ensuring reliable locking. The symmetrical arrangement of the two locking rods 520 makes the force more balanced, avoiding instability caused by unilateral locking. At the same time, the elastic properties give the locking rods 520 a certain degree of fatigue resistance, extending the service life of the adjustment structure.

[0036] Example 4: This application provides an adjustable sandal. In addition to the above-mentioned technical features, the adjustable sandal of this application also includes the following technical features.

[0037] like Figure 3 As shown, the locking part 620 includes: A mating groove 621 is provided on the locking part 620; A guide protrusion 622 is provided in the mating groove 621, and its diameter gradually decreases from the outside to the inside. A locking groove 623 is provided on the guide protrusion 622 and is used to cooperate with the locking lever 520; Among them, an entry channel 624 is formed between adjacent guide protrusions 622 for the locking rod 520 to enter, and an exit channel 625 is formed between the guide protrusion 622 and the inner wall of the mating groove 621 for the locking rod 520 to exit.

[0038] In this embodiment, as the locking lever 520 is inserted into the channel 624, the two compressed locking levers 520 reset until they contact the locking groove 623, completing the locking. At this point, the insert 500 cannot be separated from the locking part 620 by pulling outwards; separation is only possible by continuing to insert downwards. When disassembly is required, simply continue pushing the insert 500 downwards, causing the locking lever 520 to gradually move from the entry channel 624 to the exit channel 625. Once in the exit channel 625, the insert 500 can be removed by pulling outwards. When the user wears shoes, the insert 500 is kept in an outward-pulling state due to the thickness of the instep, thus maintaining the fit between the insert 500 and the locking part 620.

[0039] The locking part 620 has a guide protrusion 622 within its mating groove 621. The diameter of the guide protrusion 622 gradually decreases from the outside to the inside. A locking groove 623 on the guide protrusion 622 engages with the locking rod 520. Adjacent guide protrusions 622 form an entry channel 624, and the guide protrusion 622 and the inner wall of the mating groove 621 form an exit channel 625. The gradual change in diameter of the guide protrusion 622 guides the insertion of the locking rod 520. The engagement of the locking groove 623 and the locking rod 520 forms a lock, preventing the insert 500 from accidentally separating under external force and ensuring the stability of the toe strap 300 during wear. The locking lever 520 enters through the inlet channel 624 and exits through the outlet channel 625. The locking lever 520 needs to be inserted further downwards to move from the inlet channel 624 to the outlet channel 625. This avoids separation caused by outward pulling force generated by foot movement during use, and the disassembly operation can be completed simply by pushing downwards and pulling out. The operation is convenient and solves the problem of difficult disassembly or easy separation after the adjustment structure is locked.

[0040] Furthermore, the diameter of the inlet channel 624 gradually increases from the outer side of the guide protrusion 622 to the inner end of the guide protrusion 622, while the diameter of the outlet channel 625 remains unchanged from the inside.

[0041] The diameter of the inlet channel 624 gradually increases from the outer side of the guide protrusion 622 to the inner end, while the diameter of the outlet channel 625 remains constant from the inside. The gradual change in the diameter of the inlet channel 624 matches the elastic deformation of the locking rod 520. As the insertion depth of the locking rod 520 increases, the channel space gradually increases, providing space for the locking rod 520 to reset and facilitating its engagement with the locking groove 623. The constant diameter of the outlet channel 625 ensures that the locking rod 520 can move stably along the path during withdrawal, avoiding jamming caused by changes in channel dimensions.

[0042] Example 5: This application provides an adjustable sandal. In addition to the above-mentioned technical features, the adjustable sandal of this application also includes the following technical features.

[0043] like Figure 1 As shown, a reserved groove 700 is provided inside the heel part 130, and a buffer layer 710 is provided inside the reserved groove 700.

[0044] In this embodiment of the application, a buffer layer 710 is provided in the reserved groove 700 inside the heel part 130. The buffer layer 710 can effectively absorb the impact force generated by the heel landing when walking, reduce the pressure on the heel and ankle, and protect the foot joints. The buffer layer 710 can be made of EVA, TPU or PU material.

[0045] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0046] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An adjustable sandal, characterized in that: include: The sole (100) includes the toe area (110), the arch area (120), and the heel area (130); Shoelaces (200) are attached to the sole (100); Toe strap (300), connected to shoelace (200) and located at one end of shoelace (200); A heel strap (400) is connected to the shoelace (200) and located at the other end of the shoelace (200); It also includes an adjustment component, one end of which engages with the sole (100) and the other end with the toe strap (300), which can adjust the toe strap (300) to the optimal position according to the wearer's foot needs.

2. An adjustable sandal according to claim 1, characterized in that: The adjustment component includes: An insert (500) is provided on the toe band (300); The mating part (600) is provided on the toe part (110) and includes a mounting part (610) and a locking part (620) provided on the mounting part (610), the locking part (620) mating with the insert (500); The locking part (620) is provided in multiple ways, and the toe part (110) is provided with a through hole. The insert (500) passes through the through hole and is inserted into the locking part (620) and cooperates with the locking part (620).

3. An adjustable sandal according to claim 2, characterized in that: The insert (500) includes a rod body (510) and an L-shaped locking rod (520) disposed on the rod body (510). There are two locking rods (520), and both locking rods (520) are made of elastic metal material.

4. An adjustable sandal according to claim 3, characterized in that: The locking part (620) includes: A mating groove (621) is provided on the locking part (620); A guide protrusion (622) is provided in the mating groove (621), and its diameter gradually decreases from the outside to the inside; A locking groove (623) is provided on the guide protrusion (622) and is used to cooperate with the locking lever (520); Among them, an entry channel (624) is formed between adjacent guide protrusions (622) for the locking rod (520) to enter, and an exit channel (625) is formed between the guide protrusion (622) and the inner wall of the mating groove (621) for the locking rod (520) to exit.

5. An adjustable sandal according to claim 4, characterized in that: The diameter of the inlet channel (624) gradually increases from the outer side of the guide protrusion (622) to the inner end of the guide protrusion (622), while the diameter of the outlet channel (625) remains unchanged from the inside.

6. An adjustable sandal according to claim 1, characterized in that: The heel part (130) is provided with a reserved groove (700) inside, and a buffer layer (710) is provided inside the reserved groove (700).

7. An adjustable sandal according to claim 1, characterized in that: The heel strap (400) includes a strap body (410) and a metal ring (420) connected to the strap body (410), and the shoelace (200) is provided with a positioning member (430) connected to the metal ring (420).

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