Memory reset back buckle and underwear

Abstract

The utility model relates to the field of bra accessories, in particular to a memory reset back buckle and underwear, which comprises a hook part and a ring part, each of the hook part and the ring part comprises a base body, the hook part is matched with a row of hook buckles, the ring part is provided with a plurality of rows of buckle rings, and the connection is realized by buckling the hook buckles and the buckle rings. The base body layer structure sequentially comprises an elastic base layer and a surface layer from inside to outside. The surface layer wraps the elastic base layer and the retaining ring, and only part of the retaining ring is exposed. The elastic base layer is located on the inner layer of the base body layer, the back buckle is endowed with excellent longitudinal and transverse tensile performance, automatic and accurate resetting can be achieved after stretching, it is ensured that the specification of the back buckle is stable, and the problem that a traditional back buckle deforms due to continuous stretching is solved. The supporting force of the base body layer is strengthened, so that the retaining ring is more stable, off-line or breakage caused by repeated stretching is prevented, and the overall structural stability of the back buckle is maintained. The surface layer is used as an outer layer, so that internal sewing threads are hidden and protected, foreign body sensation during skin contact is reduced, and comfortable touch feeling is provided.

Description

Technical Field

[0001] This utility model relates to the field of bra accessories, and in particular to a memory reset back clasp and underwear. Background Technology

[0002] In the bra accessories industry, the back clasp, as a key component connecting the front and back fabrics of a bra, directly affects the wearer's experience in terms of performance and comfort. Traditional back clasp designs are often limited by overall size and material selection, resulting in the back clasp not being able to accurately return to its original position after stretching during wear. This problem causes wearers to experience a noticeable feeling of restriction and tightness when wearing a bra for extended periods, affecting comfort and freedom of movement.

[0003] Specifically, traditional back clasps are typically made of rigid materials with a fixed structure and lack elasticity. Therefore, when adjusting the bra's tightness, the back clasp often cannot adapt to the change, causing discomfort. Furthermore, due to the limitations of traditional back clasps' materials and structural design, their durability is relatively poor, making them prone to damage or deformation during use, further affecting wearing comfort and the bra's lifespan.

[0004] To address these issues, some improved back clasp designs have emerged on the market. However, most of these designs only make minor adjustments to the appearance or materials, failing to fundamentally solve the problem of the back clasp not accurately resetting after extending or retracting. Therefore, these improved back clasps still have significant room for improvement in terms of wearing comfort and durability. Utility Model Content

[0005] The present invention aims to overcome the defects of the ordinary back buckle in the prior art, which is that it cannot be accurately reset after stretching and cannot be reset, resulting in a loose internal structure of the back buckle, causing inconvenience to users when using the bra, and is limited by the overall size or material, making the wearer feel restricted and tight.

[0006] The technical solution adopted by this utility model is to provide a memory reset back buckle, including a hook and a ring. The hook and the ring are fastened together to achieve connection. The ring includes a base layer and multiple rows of buckles disposed on the base layer. The base layer includes an elastic base layer and a surface layer from the inside out. The buckles are sewn and fixed to the elastic base layer, and the surface layer is fixed to the elastic base layer. The surface layer covers the elastic base layer, and a portion of the buckles are exposed.

[0007] The hooks and loops are the connecting components of the back clasp. They interlock to secure the bra. By placing the elastic base layer inside the matrix layer, the entire back clasp is provided with longitudinal and lateral tensile strength, and can automatically and accurately return to its original size after stretching, ensuring that the back clasp always maintains its original specifications and solving the problem of dimensional instability caused by continuous stretching deformation in traditional back clasps. At the same time, the buckle is sewn on the elastic base layer, allowing it to be stably fixed to the matrix layer, preventing it from coming undone or breaking due to repeated stretching, and maintaining the stability of the overall back clasp structure. The outer layer, which covers the elastic base layer, is also the skin contact layer. It not only hides and protects the internal stitching, but also reduces the foreign body sensation when in contact with the skin, providing a good tactile feel. At the same time, its softness, combined with the elasticity of the matrix layer, provides a free and unrestricted wearing experience, increasing wearing comfort.

[0008] Furthermore, the elastic base layer has a three-layer structure, including a middle layer made of memory foam adhesive and a double-layer fabric heat-fixed to both sides of the memory foam adhesive layer. Due to its elastic properties, the memory foam adhesive layer provides the back clasp with longitudinal and lateral stretching capabilities, and can automatically and precisely return to its original shape after stretching. This allows the back clasp to return to its original shape after the bra is removed, thus maintaining the durability and stability of the back clasp. The double-layer fabric has bidirectional stretchability, which further complements the elasticity of the memory foam adhesive layer, providing additional support and stability.

[0009] Furthermore, the memory foam adhesive layer has a mesh structure, with each unit being a rectangular cell. The longitudinal and transverse directions of the rectangular cells are parallel to those of the elastic base layer. By aligning the rectangular cells with the elastic base layer, the mesh structure of the memory foam adhesive layer is arranged along the main stress direction (lateral / longitudinal). When external force is applied, the mesh structure directly bears the tensile force, avoiding stress concentration caused by structural misalignment, thereby improving tensile strength. The rectangular mesh forms continuous support paths in both the lateral and longitudinal directions, allowing the memory foam adhesive layer to evenly distribute stress during biaxial stretching after wearing the bra, preventing excessive local deformation, reducing the risk of material fatigue, and ensuring stable recovery performance even after long-term use.

[0010] Furthermore, the base layer also includes a first opening layer. The first opening layer of the base layer is sewn to one end of the double-layer fabric to form a first opening, so that the back fabric of the underwear body can be inserted into the first opening to achieve sewing connection and fixation with the ring. Through the combined action of the first side of the first opening formed by the double-layer fabric and the second side of the first opening formed by the first opening layer, the underwear body is firmly clamped between the first side and the second side. This not only provides a stable connection point between the underwear body and the ring, but also enhances the bonding force between the underwear body and the ring.

[0011] Furthermore, the hook section includes a base layer and a single row of hooks and loops mounted on the base layer. The base layer comprises a base material and a surface layer from the inside out. The hooks and loops are sewn and fixed to the base material, utilizing the rigidity of the base material to prevent displacement of the hooks and loops during repeated fastening, reducing deformation of the seams due to stretching, and extending the lifespan of the hooks and loops. Simultaneously, the surface layer is fixed to the base material, covering it and concealing the rough edges and seams of the base material, preventing skin irritation from direct contact with hard materials or loose threads. Together with the surface layer of the loop section, it forms a complete skin-friendly contact surface. In addition, the hooks and loops are exposed on the surface layer, allowing them to interlock with any row of hooks and loops, enabling flexible adjustment of the bra's tightness.

[0012] Furthermore, the base material layer has a second opening layer, which is sewn to one end of the base material to form a second opening. This allows the back fabric of the underwear body to be inserted into the second opening for sewing and securing with the hook, creating a symmetrical design with the opening structure of the loop. The combined effect of the third side of the base material forming the second opening and the fourth side of the second opening layer securely clamps the underwear body between the third and fourth sides. This not only provides a stable connection point between the underwear body and the hook but also enhances the bonding strength between them.

[0013] Furthermore, the hook and loop includes a hook end and a first sewing base, and the loop includes a loop end and a second sewing base. The hook end and the loop end interlock to achieve the closure of the back clasp. Both the first and second sewing bases are ring-shaped and are respectively connected to the lower sides of the hook end and the loop end, and are horizontally lower than the hook end and the loop end. The first and second sewing bases are firmly sewn to the elastic base layer and the substrate by stitching, providing a stable fixing point for the hook and loop and ensuring the correct position and orientation of the hook and loop on the back clasp.

[0014] Furthermore, through-holes are provided on the surface layer to expose part of the hooks or loops, allowing users to easily hook or unhook the back clasp. These through-holes can be in one or more rows to meet the needs of different users. For example, some users prefer a single-row hook design because it is simpler and easier to operate, while others prefer a multi-row hook design because it provides more adjustment space and can better adapt to different body curves and wearing needs. Therefore, the design of one or more rows of through-holes increases the flexibility and applicability of the back clasp.

[0015] Furthermore, a thermosetting adhesive layer is provided between the surface layer and the elastic base layer or substrate, which tightly and firmly bonds the surface layer and the elastic base layer or substrate together, ensuring the stability and durability of the back buckle structure. At the same time, the thermosetting adhesive layer can also provide a certain degree of elasticity and flexibility, allowing the back buckle to better adapt to the wearer's body curves and improve wearing comfort.

[0016] Furthermore, the surface layer is also made of double-layered fabric, which, together with the internal elastic base layer or substrate, further enhances the stretching and self-resetting performance of the back buckle, ensuring both the durability of the back buckle and its stability and reliability after long-term use.

[0017] A type of underwear with a memory reset back clasp, comprising the aforementioned memory reset back clasp, wherein the memory reset back clasp is sewn onto the underwear body through a first opening and a second opening respectively, thereby securing the underwear body to the hook and loop parts.

[0018] Compared with existing technologies, the beneficial effects of this invention are as follows: By setting an elastic base layer in the substrate layer of the ring, especially using a memory-resetting adhesive material, the back clasp can automatically and accurately reset after stretching, solving the problem of dimensional instability caused by continuous stretching and deformation in traditional back clasps. This ensures that the back clasp always maintains its original specifications and dimensions, improving the bra's wearing effect and user experience. At the same time, placing the buckle on the elastic base layer and the hook on the substrate provides the necessary elasticity and support, allowing the buckle and hook to be stably fixed to the substrate, avoiding problems such as unraveling or breakage due to repeated stretching.

[0019] Meanwhile, the overall structure and durability of the back buckle are further enhanced through stitching and thermosetting adhesive bonding. The softness of the outer layer provides a comfortable wearing experience, while the use of double-layered fabric not only enhances the back buckle's stretchability but also makes it abrasion-resistant, waterproof, and breathable, reducing the feeling of foreign objects against the skin and providing a pleasant tactile experience. The design with one or more rows of perforations caters to the needs of different users, offering more adjustment space to better adapt to different body curves and wearing requirements. This design increases the flexibility and applicability of the back buckle, making it suitable for a wider range of users. Attached Figure Description

[0020] Figure 1 This is an example diagram of the external structure of the hook and ring parts of this utility model.

[0021] Figure 2 This is an example diagram of the inner ring structure of this utility model.

[0022] Figure 3 This is a cross-sectional view of the inner ring structure of this utility model.

[0023] Figure 4 This is an exploded view of the ring structure of this utility model.

[0024] Figure 5 This is an example of the ring opening structure of this utility model. Figure 1 .

[0025] Figure 6This is an example of the ring opening structure of this utility model. Figure 2 .

[0026] Figure 7 This is an example diagram of the inner layer structure of the hook part of this utility model.

[0027] Figure 8 This is a cross-sectional view of the inner structure of the hook part of this utility model.

[0028] Figure 9 This is an example diagram of the hook opening structure of this utility model.

[0029] Figure 10 This is an example diagram of the buckle and hook structure of this utility model.

[0030] Figure 11 This is a cross-sectional view of the inner layer structure of the buckle of this utility model.

[0031] Figure 12 This is a cross-sectional view of the inner layer structure of the hook and clasp of this utility model.

[0032] Figure 13 This is a cross-sectional view of the inner layer heat-fixing adhesive structure of the ring portion of this utility model.

[0033] Figure 14 This is a cross-sectional view of the inner layer heat-fixing adhesive structure of the hook part of this utility model.

[0034] Figure Descriptions: Ring 200, Substrate layer 210, Buckle 220, Elastic base layer 211, Memory reset adhesive layer 2111, Double-layer fabric 2112, First opening layer 230, Second opening layer 130, First opening 240, Second opening 140, First side 241, Second side 242, Ring end 221, First sewing seat 122, Second sewing seat 222, Hook 100, Substrate layer 110, Hook 120, Hook end 121, Substrate 111, Third side 141, Fourth side 142, Surface layer 300, Through hole 310, Thermosetting adhesive layer 320. Detailed Implementation

[0035] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this invention. To better illustrate the following embodiments, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0036] Example 1

[0037] This embodiment 1 provides a memory reset back clasp, such as Figure 1As shown, the back clasp comprises two parts: a hook portion 100 and a ring portion 200. The hook portion 100 consists of a base layer 110 and a row of equally spaced and uniformly sized hooks 120 on the base layer 110. The hooks 120 are made entirely of metal to ensure their hardness and durability, and the tips of the hooks 120 are rounded. The ring portion 200 consists of a base layer 210 and multiple rows of equally spaced and uniformly sized buckles 220 on the base layer 210. The number of hooks 120 corresponds to the number of buckles 220, ensuring that the hooks 120 of the hook portion 100 can hook into any row of buckles 220 on the ring portion 200, thereby connecting the hook portion 100 and the ring portion 200. This allows the bra to fit snugly against the body, providing a comfortable wearing experience.

[0038] like Figure 2 As shown, the base layer 210 of the ring portion 200 consists of an elastic base layer 211 and a surface layer 300 from the inside out. The surface layer 300 is fixed on the elastic base layer 211. Multiple rows of fasteners 220 of the ring portion 200 are sewn and fixed to the elastic base layer 211 inside the base layer 210. The surface layer 300 of the ring portion 200 wraps around the elastic base layer 211, with some fasteners 220 exposed. Figure 3 As shown, the elastic base layer 211 within the ring 200 adopts a three-layer structure design, including a memory resin 2111 in the middle and a double-layer fabric 2112 located on both sides of the memory resin 2111 through heat fixation. The three layers are tightly bonded together as a whole. Figure 4 As shown, the memory reset adhesive layer 2111 has a mesh structure, and each unit of the mesh structure is a rectangular unit. The longitudinal and transverse directions of the rectangular unit are parallel to the longitudinal and transverse directions of the elastic base layer 211.

[0039] like Figure 5 and Figure 6 As shown, the base layer 210 of the ring portion 200 also includes a first opening layer 230. The first opening layer 230 is sewn to one end of the double-layer fabric 2112 to form a first opening 240. The double-layer fabric 2112 forms a first side 241 of the first opening 240, and the first opening layer 230 forms a second side 242 of the first opening 240.

[0040] like Figure 7 As shown, the base layer 110 of the hook portion 100 consists of a base layer 111 and a surface layer 300 from the inside out. A row of hooks 120 of the hook portion 100 is sewn and fixed to the base layer 111. The surface layer 300 of the hook portion 100 covers the base layer 111, with some hooks 120 exposed. Figure 8 and Figure 9As shown, the substrate layer 110 also includes a second opening layer 130, which is sewn to one end of the substrate 111 to form a second opening 140. The substrate 111 forms a third side 141 of the second opening 140, and the second opening layer 130 forms a fourth side 142 of the second opening 140.

[0041] like Figure 10 As shown, both the hook 120 and the ring 220 consist of two parts. The hook 120 includes a hook end 121 with a small U-shape and a first square sewing seat 122 located on both sides of the lower part of the hook end 121. The ring 220 includes a ring end 221 with a large U-shape and a second square sewing seat 222 located on both sides of the lower part of the ring end 221. The first sewing seat 122 of the hook 120 and the second sewing seat 222 of the ring 220 are both ring-shaped and are lower than the hook end 121 and the ring end 221 in the horizontal direction. Further integration... Figure 11 As shown, multiple rows of through holes 310 are formed on the surface layer 300 of the ring portion 200. The width of the through holes 310 matches the ring end 221. The retaining ring 220 exposes the ring end 221 on the surface layer 300 through the through holes 310, thus connecting the ring. Figure 12 As shown, a row of through holes 310 are provided on the surface layer 300 of the hook portion 100. The width of the through holes 310 matches the hook end 121. The hook 120 exposes the hook end 121 on the surface layer 300 through the through holes 310 for connection with the ring end 221.

[0042] like Figure 13 As shown, a heat-curing adhesive layer 320 is further provided between the elastic base layer 211 and the surface layer 300 of the base layer 210 of the ring portion 200. The heat-curing adhesive layer 320 is made of adhesive and is fixed between the elastic base layer 211 and the surface layer 300 through a hot-pressing process, further enhancing the bonding strength and stability between the elastic base layer 211 and the surface layer 300. Similarly, as... Figure 14 As shown, a heat-fixing adhesive layer 320 is also added between the substrate 111 and the surface layer 300 of the hook portion 100 substrate layer 110. The heat-fixing adhesive layer 320 is made of adhesive and is fixed between the substrate 111 and the surface layer 300 by hot pressing process, which further enhances the bonding force and stability of the substrate 111 and the surface layer 330.

[0043] Both the base layer 210 and the surface layer 300 of the substrate layer 110 are made of double-layer fabric, which makes the surface layer 300 wear-resistant, waterproof and breathable, providing an extra protective barrier for the back buckle, making it more durable and reliable, and also making it more comfortable for human skin when in contact with the back buckle.

[0044] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the technical solution of this utility model, and are not intended to limit the specific implementation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A memory reset back buckle, comprising a hook portion (100) and a ring portion (200). The hook (100) and the ring (200) are connected by interlocking. The ring portion (200) includes a base layer (210) and multiple rows of buckles (220) disposed on the base layer (210). Its features are, The substrate layer (210) includes an elastic base layer (211) and a surface layer (300) from the inside out. The buckle (220) is sewn and fixed to the elastic base layer (211). The surface layer (300) is fixed on the elastic base layer (211). The surface layer (300) covers the elastic base layer (211), with the buckle (220) partially exposed. The elastic base layer (211) includes a memory reset adhesive layer (2111) and a double-layer fabric (2112) that is heat-fixed to the front and back of the memory reset adhesive layer (2111).

2. The memory reset back clasp according to claim 1, characterized in that, The memory reset adhesive layer (2111) has a mesh structure, and each unit of the mesh structure is a rectangular unit. The longitudinal and transverse directions of the rectangular unit are parallel to the longitudinal and transverse directions of the elastic base layer (211).

3. The memory reset back clasp according to claim 1, characterized in that, The substrate layer (210) further includes a first opening layer (230). The first opening layer (230) is sewn to one end of the double-layer fabric (2112) to form a first opening (240). The double-layer fabric (2112) forms the first side (241) of the first opening (240). The first opening layer (230) forms the second side (242) of the first opening (240).

4. A memory reset back clasp according to any one of claims 1-3, characterized in that, The hook (100) includes a substrate layer (110) and a single row of hooks (120) disposed on the substrate layer (110). The hook (120) is connected to any of the buckle rings (220) by engaging with each other. The substrate layer (110) includes a substrate (111) and a surface layer (300) from the inside out. The hook (120) is sewn and fixed to the base material (111). The surface layer (300) is fixed to the substrate (111). The surface layer (300) covers the substrate (111), exposing a portion of the hook (120).

5. A memory reset back clasp according to claim 4, characterized in that, The substrate layer (110) further includes a second opening layer (130). The second opening layer (130) is sewn to one end of the substrate (111) to form a second opening (140). The substrate (111) forms the third side (141) of the second opening (140). The second opening layer (130) forms the fourth side (142) of the second opening (140).

6. A memory reset back clasp according to claim 4, characterized in that, The hook (120) includes a hook end (121) and a first sewing seat (122). The first sewing seat (122) is annular. The first sewing seat (122) is connected to both sides of the lower part of the hook end (121) and is lower than the hook end (121) in the horizontal direction. The buckle (220) includes a ring end (221) and a second sewing seat (222). The second sewing seat (222) is ring-shaped. The second sewing seat (222) is connected to both sides of the lower part of the ring end (221) and is lower than the ring end (221) in the horizontal direction.

7. A memory reset back clasp according to claim 4, characterized in that, The surface layer (300) has one or more rows of through holes (310) for exposing part of the hook (120) or buckle (220).

8. A memory reset back clasp according to claim 7, characterized in that, The surface layer (300) is a double-layer fabric, and its inner layer also includes a thermosetting adhesive layer (320).

9. A type of underwear with a memory-resetting back clasp, characterized in that: The memory reset back buckle includes the memory reset back buckle as described in any one of claims 1 to 8, wherein the ring portion (200) of the memory reset back buckle is sewn onto the underwear body through a first opening (240), and the hook portion (100) of the memory reset back buckle is sewn onto the underwear body through a second opening (140), thereby fixing the underwear body to the ring portion (200) and the hook portion (100).

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