Sock having arch protection function

Abstract

The present invention relates to a sock having an arch protection function, comprising a sock body and a plurality of elastic members. The elastic members are connected to the bottom of the sock body and are arranged at intervals in the direction from the inner side to the outer side of the sock body. Each elastic member has a first end portion and a second end portion; the first end portion and the second end portion have opposite directions; the first end portion is located at a calcaneus position of the sock body corresponding to the heel, and the second end portion is located at a heel fat pad position of the sock body corresponding to the lower part of the metatarsophalangeal joint of the forefoot. Or, the elastic members are arranged at the bottom of the sock body by means of a first fixing portion and a second fixing portion; the first fixing portion is arranged at the position of the sock body corresponding to the human foot close to the forefoot, and the second fixing portion is arranged at the position of the sock body corresponding to the human heel. The present invention can be used by flat-foot patients. Also, for long-distance running athletes, the sock can provide a good protective effect for functional problems such as fallen arches after long-distance running, and is comfortable for wearing.

Description

A type of sock with arch support Technical Field

[0001] This invention relates to the field of sock technology, and more particularly to a sock with arch support function. Background Technology

[0002] Currently, products targeting arch support primarily focus on flat feet correction, with few addressing the functional decline that occurs after prolonged exercise in normal arches. Existing arch support products mainly include arch support shoes, insoles, and socks. The main principle behind these products is to add support at the arch area of ​​the shoe or sock to prevent arch sagging, or to add elastic wrapping to the arch area to compress the apex and provide cushioning.

[0003] However, current products have the following problems: 1. They cannot effectively support the arch triangle structure of the foot. The usual method is to add supports to the arch to reduce arch collapse. This method cannot fundamentally stabilize the arch triangle structure. Instead, it puts additional pressure on the already unstable structure, causing the already stretched ligaments to stretch even more, exacerbating ligament pressure, and compressing blood vessels and nerves in the sole of the foot, leading to new problems such as decreased foot health and comfort.

[0004] 2. The shape of the raised part on the inner side of the insole or sole is usually only adjusted according to the shoe size, and the shape is limited. However, the shape of consumers' feet is different. Therefore, the existing soles or insoles with raised parts can only fit a small number of flat foot patients. They are not suitable for most flat foot patients and cannot play the corresponding corrective role. Moreover, since there are rich blood vessels and nerves in the inner arch of the foot, the raised part squeezes the space of the arch, compresses blood vessels and nerves, and is more likely to cause foot discomfort and fatigue, affecting the comfort of wearing. Summary of the Invention

[0005] The purpose of this invention is to provide a sock with arch protection function, which can be used not only by patients with flat feet, but also to provide good protection for long-distance runners who experience arch drop after long-distance running, and is also comfortable to wear.

[0006] To achieve the above objectives, the present invention discloses a sock with arch protection function, comprising a sock body and several elastic elements. The elastic elements are connected to the bottom of the sock body and are spaced apart along the width direction of the sock body. The elastic elements (13) are woven into the bottom of the sock body (10), or the elastic elements (13) are glued to the bottom of the sock body (10), or the elastic elements are disposed at the bottom of the sock body (10) through a first fixing part and a second fixing part. The first fixing part (30) is disposed at the position of the sock body (10) corresponding to the human foot near the forefoot, and the second fixing part (40) is disposed at the position of the sock body (10) corresponding to the human heel. The positions of the first fixing part (30) and the second fixing part (40) remain relatively unchanged with respect to the human foot.

[0007] The elastic element has a first end and a second end, the first end and the second end are in opposite directions, the first end is located at the heel bone position of the sock body corresponding to the heel, and the second end is located at the fat pad position below the metatarsophalangeal joint of the forefoot corresponding to the sock body.

[0008] With the above-described design, the first end of the elastic element is positioned below the heel bone of a normal foot, while the second end is positioned below the fat pad below the metatarsophalangeal joint of the forefoot. These two positions are also the starting points of the longitudinal striations on the inner and outer sides of the foot, allowing the elastic element to conform to the arch of the foot, resulting in good foot shape adaptation. When non-flat-footed individuals wear the socks of this invention, if the arch of the foot drops, the elastic force of the elastic element needs to be overcome. That is, the elastic element will, to a certain extent, force the arch of the foot to remain in place, providing support and protecting its function. For flat-footed individuals, whose arch is already in a downward position, wearing the socks of this invention is equivalent to the elastic element being stretched. Under the rebound force of the elastic element, the arch of the foot will be pulled, forcing it to bend, thus correcting flat feet. In addition, the design of the elastic element is less likely to compress blood vessels and nerves in the arch of the foot, resulting in good wearing comfort.

[0009] Preferably, in any pair of adjacent elastic elements, the distance between the corresponding first ends of the two elastic elements is smaller than the distance between the corresponding second ends of the two elastic elements. This arrangement allows the distribution of the elastic elements to correspond well to the foot structure, improving wearing comfort.

[0010] Preferably, the width of the elastic element decreases from the inside to the outside of the sock body. Generally, the wider the elastic element, the higher its elasticity. With the above arrangement, the inner side of the sock body can be more elastic, providing better support and protection for the inner arch of the foot.

[0011] Preferably, the width of the elastic element located on the innermost side of the sock body is 2-5 mm, and the width of the elastic element located on the outermost side of the sock body is 0.5-1.5 mm. This design ensures both the elasticity of the sock and wearing comfort.

[0012] Preferably, on the same cross-section of the sock body, and along the direction from the inside to the outside of the sock body, the spacing between the elastic elements increases progressively. This arrangement allows the inside of the sock body to have more elastic elements than the outside, resulting in higher elasticity on the inside of the sock body. This provides better support and protection for the inner arch of the foot, and also better balances the elasticity of the inside and outside of the sock body, ensuring wearing comfort.

[0013] Preferably, the maximum distance between the second ends of any two adjacent elastic elements is 4 mm, and the minimum distance between the second ends of any two adjacent elastic elements is 1.5 mm. This design ensures both the elasticity of the socks and wearing comfort.

[0014] Preferably, the thickness of the elastic element increases from the end to the center and / or the width of the elastic element increases from the end to the center. This arrangement allows for greater elasticity in the middle section of the elastic element, enabling the socks of the present invention to better perform their function of protecting the arch of the foot.

[0015] Preferably, the elastic element is a strip-shaped structure, and the cross-section of the elastic element is circular, elliptical, or square. A strip-shaped elastic element can improve the wearing comfort of the socks; a circular or elliptical cross-section ensures maximum elasticity; and a square cross-section (i.e., the elastic element is entirely strip-shaped) allows the elastic element to maximize the wearing comfort of the socks.

[0016] Preferably, the sock body has groove structures at the heel bone position and the fat pad position below the metatarsophalangeal joint on the forefoot. These groove structures at these two positions allow the heel bone and metatarsophalangeal joint to settle comfortably within them, ensuring a relatively fixed position between the foot and the sock, thus facilitating the elastic element's support and protection function.

[0017] Preferably, the second end of the elastic element extends towards the sock body at the position corresponding to the toes. This arrangement can better secure the elastic element, and the second end of the elastic element is less likely to peel off and curl up.

[0018] Preferably, the elastic element is made of rubber, nylon, or polyester. Using rubber ensures elasticity, while using nylon or polyester allows for a good connection and bonding with the sock body.

[0019] Preferably, the sock body is a five-toed sock, the first fixing part includes a finger loop and a connecting part, each toe of the sock body is provided with a finger loop, the connecting part is connected to the finger loop, the connecting part is located on the sock body near the forefoot, and the connecting part is arranged around the sock body.

[0020] Preferably, the connecting portion extends to the metatarsophalangeal joint of the foot, and the first fixing portion is integrally formed with the sock body.

[0021] Preferably, the sock body is provided with an ankle fixing strap on the side near the ankle. The ankle fixing strap is located near the ankle and surrounds the sock body. The end of the ankle fixing strap is connected to the second fixing part.

[0022] Preferably, the ankle support strap is composed of multiple second elastic cords, which are woven integrally with the sock body. The second fixing part covers the outer side of the heel and is integrally formed with the sock body. The elastic connecting strap is composed of multiple first connecting straps, one end of which is connected to the first fixing part, and the other end of which is connected to the second fixing part.

[0023] Preferably, the first connecting strip is provided with five strips, and each strip is connected to a finger loop.

[0024] Preferably, it also includes a second connecting strap, one end of which is connected to the side of the first fixing part, and the other end is connected to the second fixing part located at the bottom of the sock body. The second connecting strap gradually turns into the bottom of the sock body from the side of the first fixing part, and the second connecting strap separates from the sock body between the corresponding human heel and the human metatarsophalangeal joint.

[0025] Preferably, the first connecting strip and the second connecting strip are flat.

[0026] Preferably, the sock body has an arch reinforcement section at the arch of the foot.

[0027] Preferably, the arch support is composed of multiple first elastic cords, which are woven together with the sock body.

[0028] Preferably, the bottom of the sock body is provided with anti-slip protrusions, and the elastic connecting band is colored, with different colored elastic connecting bands having different tensile strengths.

[0029] Preferably, the first fixing part covers the sock body at the position from the toe to the metatarsophalangeal joint of the human foot.

[0030] Preferably, the first elastic cord is flat and is fixedly connected to the inside or outside of the sock body, or is integrally formed with the sock body; the second elastic cord is flat and is fixedly connected to the inside or outside of the sock body, or is integrally formed with the sock body.

[0031] Preferably, the arch support is a strap that surrounds the sock body. The strap is flat and located on the inner or outer side of the sock body, or is integrally formed with the sock body.

[0032] The present invention has the following beneficial effects:

[0033] 1. The elastic element of this invention is positioned at the longitudinal arch of the foot on the inner and outer sides, allowing it to conform well to the arch and providing good foot fit. When non-flat-footed individuals wear the socks of this invention, if the arch descends, the elastic force of the element needs to be overcome; that is, the element will, to a certain extent, prevent the arch from descending, providing support and protecting its function. For flat-footed individuals, whose arches are already in a descending state, wearing the socks of this invention is equivalent to the elastic element being stretched. The rebound force of the element pulls on the arch, forcing it to bend, thus correcting flat feet. Furthermore, the elastic element is less likely to compress blood vessels and nerves in the arch, resulting in good wearing comfort.

[0034] 2. The elastic element designed in this invention mimics human ligaments, which can support the triangular structure of the foot arch, especially the longitudinal arch, thereby reducing the pressure on human ligaments and improving foot health.

[0035] 3. The arch reinforcement effectively supports the transverse arch of the foot, which in turn enhances the rigidity of the longitudinal arch.

[0036] 4. This invention can provide flexible dynamic support for the arch of the foot according to the needs of changes in exercise intensity, so as to cope with the diverse sports scenarios such as walking and running in daily life. Attached Figure Description

[0037] Figure 1 is a schematic diagram of Embodiment 1.

[0038] Figure 2 shows the correspondence between the foot and the bottom of the sock body in Embodiment 1 (the elastic element is hidden).

[0039] Figure 3 is a schematic diagram of the bottom of the sock body in Embodiment 1.

[0040] Figure 4 shows the usage state of Embodiment 1 (the sock body is hidden).

[0041] Figure 5 is a schematic diagram (simplified diagram) of the arrangement of the elastic elements in Embodiment 1.

[0042] Figure 6 is a schematic diagram of the bottom of the sock body in Example 2.

[0043] Figure 7 is a top view of the sock body provided in Embodiment 3.

[0044] Figure 8 is a bottom view of the sock body provided in Embodiment 3.

[0045] Figure 9 is a schematic diagram of the inner side view of the sock body provided in Embodiment 3.

[0046] Figure 10 is a schematic diagram of the outer side view of the sock body provided in Embodiment 3.

[0047] Figure 11 is a schematic diagram of the ankle fixation strap provided in Embodiment 3, which wraps around the ankle.

[0048] Figure 12 is a schematic diagram of the longitudinal arch triangle structure of the human foot provided in Embodiment 3.

[0049] Explanation of main component symbols: 10. Sock body; 11. First groove structure; 12. Second groove structure; 13. Elastic element; 14. Arch reinforcement; 15. Ankle fixing strap; 30. First fixing part; 31. Finger loop; 32. Connecting part; 40. Second fixing part; 41. First connecting strap; 42. Second connecting strap; 50: Foot; 51: Helix bone; 52: Metatarsophalangeal joint; 53: Arch. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0051] Example 1

[0052] As shown in Figures 1-5, this embodiment discloses a sock with arch protection function, which includes a sock body 10 and several elastic elements 13. The sock body 10 has groove structures at the heel bone 51 and the fat pad below the metatarsophalangeal joint 52 of the forefoot. These groove structures are formed by knitting or injection molding of TPU material. For ease of distinction, the groove structure at the heel bone 51 is defined as the first groove structure 11, and the groove structure below the metatarsophalangeal joint 52 is defined as the second groove structure 12. The first groove structure 11 and the second groove structure 12 allow the heel bone 51 and metatarsophalangeal joint 52 to be inserted, thereby fixing the foot 50 relative to the sock and ensuring the elastic elements 13 function effectively.

[0053] Elastic elements 13 are located at the bottom of the sock body 10 and are spaced apart along the width of the sock body 10. The elastic elements 13 are made of rubber (elastic band), nylon, or polyester. Using rubber ensures elasticity, while using nylon or polyester allows for a good connection with the sock body 10. The elastic elements 13 are connected to the sock body 10 by weaving or gluing. For example, gluing is more convenient when the elastic element 13 is made of rubber, while weaving is suitable when it is made of nylon or polyester. The elastic elements 13 have a strip-like structure with a circular, elliptical, or square cross-section. The strip-like structure improves the wearing comfort of the socks, while a circular or elliptical cross-section maximizes elasticity, and a square cross-section (i.e., the elastic element 13 is entirely strip-like) ensures maximum wearing comfort.

[0054] The elastic element 13 has a first end and a second end, which are oriented in opposite directions. The first end is located at the heel bone 51 of the sock body 10, corresponding to the position of the first groove structure 11. The second end is located at the fat pad below the metatarsophalangeal joint 52 of the forefoot, corresponding to the position of the sock body 10, corresponding to the position of the second groove structure 12. With the first groove structure 11 and the second groove structure 12 fixed relative to the foot 50, and these two positions being the starting points of the longitudinal striations on the inner and outer sides of the foot, the elastic element 13 can fit the arch 53 well, resulting in good foot fit and greater versatility of the sock. When a non-flat-footed patient wears the socks of this invention, the curvature of their arch 53 is normal. If the arch 53 sags (e.g., after a long run), the elastic force of the elastic element 13 needs to be overcome. That is, the elastic element 13 will, to a certain extent, force the arch 53 to not sag, providing support for the arch 53 and thus protecting its function. For patients with flat feet, since the arch 53 is already in a downward position, wearing the socks of this invention is equivalent to the elastic element 13 being in a stretched state (the positions of the first groove structure 11 and the second groove structure 12 correspond to the normal foot 50). Under the rebound force of the elastic element 13, the arch 53 is pulled, forcing the arch 53 to bend, thus correcting flat feet. In addition, the design of the elastic element 13 is less likely to compress the blood vessels and nerves at the arch 53, resulting in good wearing comfort.

[0055] To ensure the sock's protective function for the arch 53, the following limitations are made: In pairs of adjacent elastic elements 13, the distance between the corresponding first ends of two elastic elements 13 is less than the distance between the corresponding second ends of two elastic elements 13. This ensures that the elastic elements 13 start at the first groove structure 11, are arranged in a fan shape, and terminate at the second groove structure 12. Furthermore, along the inner to outer direction of the sock body 10 (i.e., from the fifth toe to the big toe), the width of the elastic element 13 decreases. The width of the innermost elastic element 13 is 2–5 mm, and the width of the outermost elastic element 13 is 0.5–1.5 mm. When the cross-section of the elastic element 13 is circular, the width refers to the diameter of the elastic element 13. Generally, the greater the width of the elastic element 13, the higher its elasticity. Through the above arrangement, the inner side of the sock body 10 has higher elasticity, providing better support and protection for the inner side of the arch 53, ensuring both sock elasticity and wearing comfort. Furthermore, on the same cross-section of the sock body 10, and along the direction from the inside to the outside of the sock body 10, the spacing between the elastic elements 13 increases progressively, and the maximum spacing between the second ends of any two adjacent elastic elements 13 is 4 mm, and the minimum spacing is 1.5 mm. This arrangement allows the inside of the sock body 10 to have more elastic elements 13 than the outside, resulting in higher elasticity on the inside of the sock body 10. This provides better support and protection for the inner side of the arch 53, and also better balances the elasticity between the inside and outside of the sock body 10, ensuring wearing comfort.

[0056] In addition, in order for the elastic element 13 to better perform its function of protecting the arch of the foot, the thickness of the elastic element 13 may be required to increase from the end to the center (i.e., the elastic element 13 is thin at both ends and thick in the middle), or the width of the elastic element 13 may be required to increase from the end to the center (i.e., the elastic element 13 is narrow at both ends and wide in the middle), or the thickness of the elastic element 13 may be required to increase from the end to the center, and the width of the elastic element 13 may also be required to increase from the end to the center.

[0057] Example 2

[0058] As shown in Figure 6, the difference between this embodiment and Embodiment 1 is that the second end of the elastic member 13 extends towards the position of the toes on the sock body 10. This allows for better fixation of the elastic member 13, and the second end of the elastic member 13 is less likely to peel off and curl up.

[0059] Example 3

[0060] As shown in Figures 7-11, this embodiment discloses a sock with arch support function, comprising: a sock body 10, on which an elastic element, a first fixing part 30, and a second fixing part 40 are provided. The first fixing part 30 is located on the sock body 10 at a position corresponding to the forefoot of the human foot, and the second fixing part 40 is located on the sock body 10 at a position corresponding to the heel of the human foot. In this embodiment, the elastic element is an elastic connecting band, which is located at the bottom of the sock body 10 and connects the first fixing part 30 and the second fixing part 40. The positions of the first fixing part 30 and the second fixing part 40 relative to the human foot remain unchanged.

[0061] The sock body 10 is a five-toed sock. The first fixing part 30 includes a finger loop 31 and a connecting part 32. Each toe of the sock body 10 is fitted with a finger loop 31. The connecting part 32 is connected to the finger loop 31. The connecting part 32 is located near the forefoot of the sock body 10 and surrounds the sock body 10.

[0062] In this embodiment, the first fixing part 30 is set in the style of a five-finger sock, making it difficult for the first fixing part 30 to move relative to the human foot, thereby keeping the distance between the first fixing part 30 and the second fixing part 40 unchanged, so that the elastic connecting band can perform its function.

[0063] To prevent relative displacement between the second fixing part 40 and the human foot, the second fixing part 40 is wrapped around the outside of the human heel, and an ankle fixing strap 15 is provided on the side of the sock body 10 near the ankle. The ankle fixing strap 15 is located on the sock body 10 near the ankle and is arranged around the sock body 10. The end of the ankle fixing strap 15 is connected to the second fixing part 40.

[0064] In this embodiment, if the resistance of the second fixing part 40 covering the heel against the elastic connecting band generates tension, the second fixing part 40 may easily move towards the toes. Therefore, an ankle fixing strap 15 is added to assist in fixing the position of the second fixing part 40 and prevent it from moving towards the toes. In the above embodiment, in order to improve the wearing comfort of the sock body 10, both the first fixing part 30 and the second fixing part 40 are integrally set with the sock body 10. The ankle fixing strap 15 is composed of multiple second elastic cords, which are woven together with the sock body 10. Fine elastic material is used to weave together with the sock body fabric in a linear shape, which ensures heat dissipation and moisture wicking of the sock body while enhancing the wrapping force of this part of the sock body, and plays a role in evenly distributing the tension of the elastic band.

[0065] In this embodiment, the elastic connecting band mimics the ligaments of the human body. Its function is the same as that of the plantar ligaments, providing support for the longitudinal arch of the foot. As shown in Figure 12, the triangular structure of the medial and lateral longitudinal arches of the human foot is mainly composed of the calcaneus, talus, navicular bone, cuboid bone, medial cuneiform bone, first metatarsal bone, fifth metatarsal bone, and ligaments arranged in sequence. The apex of the arch-shaped structure consists of the talus and cuboid bone, the two sides are the calcaneus and the first and fifth metatarsal bones, and the base is formed by ligaments. One end of the plantar ligament connects to the side of the calcaneus, and the other end connects to the side of the metatarsal bone. The two ends of the plantar ligaments, which maintain stability at the bottom of the triangular structure of the longitudinal arch, are attached to the heel and the metatarsophalangeal joint of the toe, respectively. To make the function of the elastic connecting band more similar to that of human ligaments, the connecting portion 32 extends to the metatarsophalangeal joint of the foot, connecting one end of the elastic connecting band to the connecting portion 32.

[0066] The elastic connecting band can be separate from, fixedly connected to, or integrally woven with the sock body 10. In this embodiment, the elastic connecting band can be separately set from the sock body 10, or the elastic connecting band can be glued to the sock body 10, or the elastic connecting band can be printed on the sock body 10 using three-dimensional printing technology, or the elastic connecting band can be integrally woven with the sock body 10. In this embodiment, the setting of separating the elastic connecting band from the sock body 10 is more beneficial for the protection of the transverse arch of the foot.

[0067] The elastic connecting band is detachably connected to the first fixing part 30 and the second fixing part 40, and can be separated from or detachably connected to the sock body 10. In this embodiment, different elastic connecting bands can be used for people with different body types or different arch shapes, increasing the product's targeting and improving support for different arches.

[0068] The elastic connecting belt is composed of multiple first connecting belts 41, one end of which is connected to the first fixing part 30 and the other end is connected to the second fixing part 40.

[0069] In this embodiment, since the sock body 10 is a five-finger sock, five first connecting straps 41 are provided, and each first connecting strap 41 is connected to a finger loop 31. This arrangement can distribute the tension of the elastic connecting strap, making the tension distribution of the elastic connecting strap more reasonable and increasing the comfort when wearing it.

[0070] One end of the second connecting strap 42 is connected to the side of the first fixing part 30, and the other end is connected to the second fixing part 40 located at the bottom of the sock body 10. The second connecting strap 42 gradually turns into the bottom of the sock body 10 from the side of the first fixing part 30. The second connecting strap 42 separates from the sock body 10 between the corresponding human heel and the human metatarsophalangeal joint.

[0071] In this embodiment, the second connecting strap 42 further optimizes the tension structure, making the first connecting strap 41 and the second connecting strap 42 more closely resemble the effect of human ligaments, providing better support for the transverse arch of the foot and improved wearing comfort. In the above embodiment, both the first connecting strap 41 and the second connecting strap 42 are elastic bands and are flat, which can reduce the feeling of foreign objects on the sole of the foot and improve wearing comfort. Simultaneously, the elastic connecting straps are colored, with different colors indicating different tensile strengths. The elastic band strength can be adjusted by changing the width to suit different weight groups, and is distinguished by color.

[0072] In this embodiment, compared to bony structures, ligaments have relatively low strength. Under conditions of high-intensity exercise or standing, excessive pressure can repeatedly stretch the plantar ligaments, causing ligament laxity and subsequently leading to arch collapse. By utilizing the tensile force generated by the deformation of the first connecting band 41 and the second connecting band 42, the plantar ligaments are helped to maintain the relative position of the calcaneus and metatarsals, stabilize the triangular structure, and reduce pressure on the plantar ligaments.

[0073] Support for the transverse arch of the foot is achieved by providing an arch reinforcement 14 at the arch of the sock body 10. The arch reinforcement 14 is a strap that surrounds the sock body 10. The arch reinforcement 14 is composed of multiple first elastic cords, which are woven together with the sock body 10.

[0074] In this embodiment, the transverse arch of the human foot is mainly composed of the forefoot formed by five metatarsal bones, and the midfoot formed by the medial, middle, and lateral cuneiform bones and the cuboid bone. The apexes of the forefoot and midfoot transverse arches are the second metatarsal bone and the middle cuneiform bone, respectively. The ligaments maintaining the transverse arch mainly include the dorsal metatarsal ligaments, the dorsal tarsometatarsal ligaments, and the plantar metatarsal ligaments. By adding a first elastic cord to the forefoot (near the toes) and midfoot areas and weaving it together with the sock body 10, stronger support is provided to maintain the structural stability of the transverse arch.

[0075] In this embodiment, the arch support is made of fine elastic filaments woven together with the sock fabric in a linear fashion, which ensures heat dissipation and moisture dissipation of the sock while enhancing the wrapping force of this part of the sock.

[0076] The bottom of the sock body 10 is provided with anti-slip raised dots.

[0077] In this embodiment, the anti-slip bumps can improve the anti-slip performance of the socks.

[0078] In the above embodiment, the starting and ending points of the longitudinal arch support elastic connecting band are located at the heel and the metatarsophalangeal joint at the toe, which is the same as the plantar ligaments that maintain stability in the bottom layer of the longitudinal arch's triangular structure. The plantar ligaments attach to the bones of the triangular structure and work in conjunction with the foot muscles to effectively maintain arch stability. When muscles are fatigued or ligaments are loose, the bottom edge is passively stretched beyond its limit, causing the triangular structure to lose stability and the arch to collapse. At this time, the elastic connecting band located on the sole of the foot generates tension through deformation, fixing the bony structures on both sides, reducing the pressure of the stretched plantar ligaments, and stabilizing the longitudinal arch triangular structure. Furthermore, the elastic connecting band at the heel disperses the tension through the first fixing part 30 of the five-toe stocking body, ensuring comfort and fixing the direction of the tension to prevent misalignment, maintaining its support function in the correct direction. The transverse arch support elastic band provides effective protection by reinforcing the forefoot and midfoot with an annular arch reinforcement part 14.

[0079] In summary, the elastic connecting band in this special design provides tensile strength that adapts to changes in exercise intensity, offering support for the arch of the foot without compressing the sole. It simultaneously satisfies the need for pressure-free support and significantly inhibits arch drop, thus meeting the public's demand for comfortable and safe arch support.

[0080] Example 4

[0081] The difference between this embodiment and Embodiment 1 is that the first fixing part 30 covers the sock body 10 corresponding to the position from the toe to the metatarsophalangeal joint of the human foot.

[0082] In this embodiment, the first fixing part 30 covers the area from the toe to the metatarsophalangeal joint of the sock body 10, so that even if the first fixing part 30 is pulled by the elastic connecting band, it will not shift relative to the human foot. Furthermore, the sock body 10 can be any type of sock, not limited to five-toed socks.

[0083] Example 5

[0084] The difference between this embodiment and Embodiment 1 is that: the first elastic cord is flat and fixedly connected to the inside or outside of the sock body 10, or integrally formed with the sock body 10. The second elastic cord is flat and fixedly connected to the inside or outside of the sock body 10, or integrally formed with the sock body 10. The drawstring is flat and disposed on the inside or outside of the sock body 10, or integrally formed with the sock body 10.

[0085] In this embodiment, the first elastic cord, the second elastic cord, and the drawstring can achieve their respective functions by being located on the inner or outer side of the sock body 10 or by being integrally formed with the sock body 10.

[0086] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. [Corrected according to Rule 91, 10.09.2025] A sock with arch support function, characterized in that: It includes a sock body (10) and a number of elastic elements (13), the elastic elements (13) being connected to the bottom of the sock body (10) and spaced apart along the width direction of the sock body (10); The elastic element (13) is woven or glued to the bottom of the sock body (10). At this time, the elastic element (13) has a first end and a second end. The first end is located at the position of the heel bone (51) of the sock body (10) corresponding to the heel, and the second end is located at the position of the fat pad below the metatarsophalangeal joint (52) of the forefoot of the sock body (10). Alternatively, the elastic element is disposed at the bottom of the sock body (10) via a first fixing part and a second fixing part. In this case, the first fixing part (30) is disposed at the position of the sock body (10) corresponding to the human foot near the forefoot, and the second fixing part (40) is disposed at the position of the sock body (10) corresponding to the human heel. The two ends of the elastic element are respectively connected to the first fixing part (110) and the second fixing part (130), and the positions of the first fixing part (30) and the second fixing part (40) relative to the human foot remain unchanged.

2. [Corrected according to Rule 91, 10.09.2025] The socks with arch support function according to claim 1 are characterized in that: In the two adjacent elastic elements (13), the distance between the first ends of the two elastic elements (13) is smaller than the distance between the second ends of the two elastic elements (13).

3. [Correction 10.09.2025 based on Rule 91] The socks with arch support function according to claim 1 are characterized in that: Along the inner to outer direction of the sock body (10), the width of the elastic element (13) decreases; The width of the elastic element (13) located on the innermost side of the sock body (10) is 2-5 mm, and the width of the elastic element (13) located on the outermost side of the sock body (10) is 0.5-1.5 mm.

4. [Correction 10.09.2025 based on Rule 91] The socks with arch support function according to claim 1 are characterized in that: On the same cross-section of the sock body (10), and along the direction from the inside to the outside of the sock body (10), the spacing between the elastic elements (13) increases. The maximum distance between the second ends of two adjacent elastic elements (13) is 4 mm, and the minimum distance between the second ends of two adjacent elastic elements (13) is 1.5 mm.

5. [Correction 10.09.2025 based on Rule 91] The socks with arch support function according to claim 1 are characterized in that: The thickness of the elastic element (13) increases from the end to the center and / or the width of the elastic element (13) increases from the end to the center.

6. [Corrected according to Rule 91, 10.09.2025] The socks with arch support function according to claim 1 are characterized in that: The elastic element (13) has a strip-shaped structure, and the cross-section of the elastic element (13) is circular, elliptical, or square; the elastic element (13) is made of rubber, nylon, or polyester.

7. [Correction 10.09.2025 based on Rule 91] The socks with arch support function according to claim 1 are characterized in that: The sock body (10) has a groove structure at the position of the heel bone (51) and the fat pad position below the metatarsophalangeal joint (52) of the forefoot.

8. [Corrected according to Rule 91, 10.09.2025] The socks with arch support function according to claim 1 are characterized in that: The second end of the elastic element (13) also extends toward the position of the toes on the sock body (10).

9. [Correction 10.09.2025 based on Rule 91] The socks with arch support function according to claim 1 are characterized in that: The sock body (10) is a five-toed sock. The first fixing part (30) includes a finger loop (31) and a connecting part (32). Each toe of the sock body (10) is fitted with a finger loop (31). The connecting part (32) is connected to the finger loop (31). The connecting part (32) is located near the forefoot of the sock body (10). The connecting part (32) surrounds the sock body (10).

10. [Corrected according to Rule 91, 10.09.2025] The socks with arch support function according to claim 9 are characterized in that: The connecting part (32) extends to the metatarsophalangeal joint of the foot, and the first fixing part (30) is integrally formed with the sock body (10).

11. [Correction 10.09.2025 based on Rule 91] The sock with arch protection function according to claim 10 is characterized in that: An ankle fixing strap (15) is provided on the side of the sock body (10) near the ankle. The ankle fixing strap (15) is located on the sock body (10) near the ankle and is arranged around the sock body (10). The end of the ankle fixing strap (15) is connected to the second fixing part (40).

12. [Correction 10.09.2025 based on Rule 91] The socks with arch support function according to claim 11 are characterized in that: The ankle fixing strap (15) is composed of multiple second elastic cords, which are woven together with the sock body (10); the second fixing part (40) covers the outer side of the heel of the human body, and the second fixing part (40) is integrally set with the sock body (10); the elastic connecting strap is composed of multiple first connecting straps (131), one end of the first connecting strap (131) is connected to the first fixing part (30), and the other end is connected to the second fixing part (40).

13. [Correction 10.09.2025 based on Rule 91] The sock with arch protection function according to claim 12 is characterized in that: The first connecting strip (131) is provided with five strips, and each first connecting strip (131) is connected to a finger loop (31).

14. [Corrected according to Rule 91, 10.09.2025] The socks with arch support function according to claim 13 are characterized in that: It also includes a second connecting strap (42), one end of which is connected to the side of the first fixing part (30), and the other end is connected to the second fixing part (40) located at the bottom of the sock body (10). The second connecting strap (42) gradually turns into the bottom of the sock body (10) from the side of the first fixing part (30). The second connecting strap (42) separates from the sock body (10) between the corresponding human heel and the human metatarsophalangeal joint.

15. [Correction 10.09.2025 based on Rule 91] The socks with arch support function according to claim 14 are characterized in that: The first connecting strip (131) and the second connecting strip (42) are flat.

16. [Corrected according to Rule 91, 10.09.2025] The sock with arch support function according to claim 15 is characterized in that: The sock body (10) has an arch reinforcement (14) located at the arch of the foot. The arch reinforcement (14) is composed of multiple first elastic cords, which are woven together with the sock body (10).

17. [Correction 10.09.2025 based on Rule 91] The sock with arch protection function according to claim 16 is characterized in that: The first elastic cord is flat and is fixedly connected to the inside or outside of the sock body (10), or is integrally formed with the sock body (10); the second elastic cord is flat and is fixedly connected to the inside or outside of the sock body (10), or is integrally formed with the sock body (10).

18. [Corrected according to Rule 91, 10.09.2025] The sock with arch protection function according to claim 16 is characterized in that: The arch reinforcement (14) is a strap that surrounds the sock body (10). The strap is flat and is located on the inside or outside of the sock body (10), or is integrally formed with the sock body (10).

19. [Corrected according to Rule 91, 10.09.2025] The socks with arch support function according to claim 1 are characterized in that: The bottom of the sock body (10) is provided with anti-slip protrusions, and the elastic element is a plurality of elastic connecting strips. The elastic connecting strips are colored, and the elastic connecting strips of different colors have different tensile strengths.

20. [Corrected according to Rule 91, 10.09.2025] The socks with arch support function according to claim 1 are characterized in that: The first fixing part (30) covers the sock body (10) corresponding to the position from the toe to the metatarsophalangeal joint of the human foot.

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