Watchband with double-layer surface and three-dimensional core

Abstract

The utility model relates to the technical field of watchbands, in particular to a watchband with a double-layer surface and a three-dimensional core, which comprises a watchband main body and clamping needles arranged on the watchband main body, the watchband main body is provided with a sponge layer and a sandwich screen cloth layer wrapping the sponge layer, the sandwich screen cloth layer is of a long-strip-shaped structure, and the clamping needles are arranged on the watchband main body. The sandwich screen cloth layer comprises a mesh surface layer, a canvas layer and a monofilament connecting layer for connecting the mesh surface layer and the canvas layer, the sandwich screen cloth layer is folded and sewed, the sponge layer is wrapped by the folded and sewed sandwich screen cloth layer, and the canvas layer is arranged to be in direct butt joint with the sponge layer; a shaft hole is formed in the folded line position of the sandwich screen cloth layer through sewing so as to be connected with a clamping needle; according to the watchband with the 3D pressing effect, the sponge layer serves as an inner layer, the sandwich screen cloth layer wraps the sponge layer, the three-dimensional structure of the double-layer surface and the three-dimensional core is utilized, and breathability and supporting strength are both considered.

Description

A watch strap with a double-layered design and a three-dimensional core Technical Field

[0001] This utility model relates to the field of watch strap technology, and in particular to a watch strap with a double-layered design and a three-dimensional core. Background Technology

[0002] Sandwich mesh, a typical double-needle bed warp-knitted mesh, features a unique three-dimensional system consisting of a mesh surface layer, connecting monofilaments, and a flat fabric bottom layer. This structure organically combines the three layers through warp knitting, forming a stable three-dimensional architecture with significant structural advantages. By precisely controlling the weaving parameters of each layer, such as mesh density, monofilament diameter, and flat fabric material, a dynamic balance of breathability, support, and skin-friendliness can be achieved to meet the needs of different scenarios. In the field of sports equipment, lightweighting can be achieved by adjusting the structure; in the field of furniture fabrics, durability can be enhanced by optimizing the structure, exhibiting highly customizable functional characteristics.

[0003] However, in the application of watch straps, traditional sandwich mesh fabrics have revealed significant performance shortcomings. As the core component connecting the watch dial to the wearer's wrist, the watch strap needs to balance comfort and support stability: on the one hand, it needs to conform to the wrist to improve wearing comfort, and on the other hand, it needs to provide stable support for the watch dial to prevent it from shaking. However, due to its high softness, traditional sandwich mesh fabrics lack sufficient three-dimensional support strength, which makes the connection between the watch dial and the strap prone to large tensile forces in actual use. Especially in daily activities or sports scenarios, frequent wrist movements exacerbate the stress concentration in this area, causing wear and breakage at the connection between the strap and the watch dial after a period of use. This not only shortens the lifespan of the watch strap but may also cause the watch to fall off. Therefore, in response to the structural defects of traditional sandwich mesh fabrics in watch strap applications, there is an urgent need to propose an improved technical solution to enhance the support strength and durability of the connection points of the watch strap. Summary of the Invention

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0005] A watch strap with a double-layered, three-dimensional core includes a strap body and a clasp disposed on the strap body. The strap body has a sponge layer and a sandwich mesh layer that wraps around the sponge layer. The sandwich mesh layer has a long strip structure and includes a mesh surface layer, a canvas layer, and a monofilament connecting layer that connects the mesh surface layer and the canvas layer. The sandwich mesh layer is folded and sewn together so that the folded and sewn sandwich mesh layer wraps around the sponge layer, and the canvas layer is positioned to directly align with the sponge layer. The sandwich mesh layer has a pier hole sewn into the fold line to connect the clasp.

[0006] Preferably, the watch strap body has two parts, namely a front watch strap and a back watch strap. In the front watch strap, the sandwich mesh layer is configured to be folded twice so that both ends have fold lines, and shaft holes are sewn on both ends. In the back watch strap, the sandwich mesh layer is configured to be folded flush, and multiple stop holes are provided on the back watch strap at equal intervals along the length direction.

[0007] Preferably, after the sandwich mesh layer is wrapped around the sponge layer, its edge has a contact edge that extends beyond the sponge layer, and the sandwich mesh layer wraps the sponge layer inside by sewing the contact edge.

[0008] Preferably, an adhesive layer is coated on the canvas layer, and the canvas layer is bonded to the sponge layer through the adhesive layer.

[0009] Preferably, the mesh surface layer and the monofilament connecting layer are made of fine yarn, and the canvas layer is made of coarse yarn.

[0010] Preferably, the mesh on the surface layer has a hexagonal structure and a pore size of 1mm-2mm.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This watch strap with a 3D pressing effect uses a sponge layer as the inner layer and a sandwich mesh layer wrapped around it. Utilizing its "double-layer plus three-dimensional core" three-dimensional structure, it balances breathability and support strength. The mesh surface layer and monofilament connecting layer use fine yarns to ensure a soft touch, while the canvas layer uses coarser yarns such as cotton and linen instead of the traditional flat cloth bottom layer. Thanks to the thicker warp and weft yarns and higher interlacing density, the overall strength of the sandwich mesh layer is significantly improved. After the sandwich mesh layer is folded in half, it is sewn at the fold line to form a pivot hole. This structural design not only stabilizes the overall structure of the strap but also strengthens the toughness of the pivot hole area, effectively dispersing the tensile stress at the connection point between the dial and the strap, greatly reducing the risk of wear and breakage, and ultimately achieving a dual improvement in comfortable wearing experience and long-term durability.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 is a structural schematic diagram of this utility model;

[0016] Figure 2 is a schematic diagram of the layered structure of this utility model.

[0017] The reference numerals and names in the figure are as follows:

[0018] 10. Watch strap body, 11. Snap pin, 12. Front watch strap, 13. Back watch strap, 14. Contact edge, 20. Sponge layer, 30. Sandwich mesh layer, 31. Mesh surface layer, 32. Canvas layer, 33. Monofilament connecting layer, 34. Shaft hole, 35. Stop hole. Detailed Implementation

[0019] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Please refer to Figures 1-2. In this embodiment of the present invention, a watch strap with a double-layered structure and a three-dimensional core includes a watch strap body 10 and a clasp 11 disposed on the watch strap body 10. The watch strap body 10 has a sponge layer 20 and a sandwich mesh layer 30 that wraps the sponge layer 20. The sandwich mesh layer 30 has a long strip structure and includes a mesh surface layer 31, a canvas layer 32, and a monofilament connecting layer 33 that connects the mesh surface layer 31 and the canvas layer 32. The sandwich mesh layer 30 is folded and sewn together so that the folded and sewn sandwich mesh layer 30 wraps the sponge layer 20 inside, and the canvas layer 32 is set to directly connect to the sponge layer 20. The sandwich mesh layer 30 has a shaft hole 34 sewn at the fold line position to connect the clasp 11. This watch strap with a 3D pressing effect combines a sponge layer 20 with a sandwich mesh layer 30. Utilizing the three-dimensional structure of the sandwich mesh—a "double-layered structure with a three-dimensional core"—the sponge layer 20 serves as the inner layer, while the sandwich mesh layer 30 acts as the outer layer. This design ensures breathability while effectively enhancing the overall support strength of the strap. The mesh surface layer 31 and the monofilament connecting layer 33 are made of fine yarn, while the canvas layer 32 is made of coarse yarn. The canvas layer 32 replaces the traditional flat fabric bottom layer. The canvas layer 32 can be made of cotton or linen. Coarse yarns such as polyester and nylon are used, with both warp and weft yarns being relatively thick. In contrast, the bottom layer of traditional plain fabric is mostly made of cotton, polyester-cotton blends, or fine-count synthetic yarns, which are even finer. The application of canvas layer 32 can improve the strength of sandwich mesh layer 30 to a certain extent. On this basis, by using the fold line of sandwich mesh layer 30 to sew together to form the shaft hole 34 structure, not only is the strap structure stabilized, but the strength and toughness of the shaft hole 34 structure are also enhanced. This improves the strength of the connection between the dial and the strap to a certain extent, thereby preventing wear and breakage of the connection between the dial and the strap due to pulling.

[0021] Please refer to Figure 1. Based on the above technical solution, it is further proposed that the main body 10 of the watch strap has two parts, namely a front watch strap 12 and a rear watch strap 13. In the front watch strap 12, the sandwich mesh layer 30 is configured to be folded twice so that both ends have fold lines, and shaft holes 34 are sewn on both ends. The pin 11 of one shaft hole 34 is configured to connect to the dial, and the pin 11 of the other shaft hole 34 is configured to connect to the buckle component. In the rear watch strap 13, the sandwich mesh layer 30 is configured to be folded flat, and multiple stop holes 35 are opened on the rear watch strap 13, which are evenly distributed along the length direction. The rear watch strap 13 passes through the buckle component and engages with the buckle component through the stop holes 35 to complete the binding of the front watch strap 12 and the rear watch strap 13. The front strap 12 features a double-folded design forming a dual-axis hole 34 structure. One end is securely connected to the dial, while the other end connects to the buckle component. This design not only enhances the stability of the connection between the strap and the dial but also makes the buckle installation flexible and reduces stress concentration at the connection point. The rear strap 13 uses a flush fold combined with equidistantly distributed stop holes 35, which engage with the buckle component. This allows for free adjustment of tightness according to the wearer's wrist size, catering to different user needs. The split structure combined with the innovative folding process ensures both the overall structural strength and durability of the strap while improving wearing convenience and comfort, thus better applying the double-layered, three-dimensional core to the traditional strap structure.

[0022] Please refer to Figure 1. Based on the above technical solution, a further proposal is made whereby the sandwich mesh layer 30, after being wrapped around the sponge layer 20, has a contact edge 14 extending beyond the sponge layer 20. The sandwich mesh layer 30 encloses the sponge layer 20 by sewing the contact edge 14. The contact edge 14 provides ample space for sewing, and this structure strengthens the connection between the sandwich mesh layer 30 and the sponge layer 20. This allows the inner and outer layers to work together to bear force during bending and stretching of the watch strap, further improving overall durability. At the same time, the smooth sewn edges also reduce friction on the wearer's skin, enhancing wearing comfort.

[0023] Based on the above technical solution, it is further proposed to coat the canvas layer 32 with an adhesive layer (not shown in the figure). The canvas layer 32 is bonded to the sponge layer 20 through the adhesive layer. The coating of the adhesive layer enhances the bonding strength between the canvas layer 32 and the sponge layer 20, making the two tightly bonded and not easy to separate, thus avoiding deformation or local collapse of the watch strap due to the displacement of the interlayer during use.

[0024] Please refer to Figure 2. Based on the above technical solution, it is further proposed that the mesh of the mesh surface layer 31 is a hexagonal structure with a pore size of 1mm-2mm. The hexagonal structure has excellent stability and uniform force characteristics. Combined with the pore size of 1mm-2mm, it can ensure smooth airflow and improve the comfort of wearing. In addition, the hexagonal structure gives the watch strap an aesthetic design, making it both functional and decorative.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A watch strap with a double-layered design and a three-dimensional core, characterized in that, The watch includes a main body (10) and a pin (11) disposed on the main body (10). The main body (10) has a sponge layer (20) and a sandwich mesh layer (30) that wraps the sponge layer (20). The sandwich mesh layer (30) is a long strip structure. The sandwich mesh layer (30) includes a mesh surface layer (31), a canvas layer (32), and a monofilament connecting layer (33) that connects the mesh surface layer (31) and the canvas layer (32). The sandwich mesh layer (30) is folded and sewn together so that the folded and sewn sandwich mesh layer (30) wraps the sponge layer (20) inside, and the canvas layer (32) is set to be directly connected to the sponge layer (20). The sandwich mesh layer (30) has a shaft hole (34) sewn at the fold line position after folding to connect the pin (11).

2. A watch strap with a double-layered design and a three-dimensional core according to claim 1, characterized in that, The main body (10) of the watch strap has two parts, namely the front watch strap (12) and the back watch strap (13). In the front watch strap (12), the sandwich mesh layer (30) is configured to be folded twice so that both ends have fold lines, and the shaft holes (34) are sewn on both ends. In the back watch strap (13), the sandwich mesh layer (30) is configured to be folded flat, and multiple shift holes (35) are opened on the back watch strap (13) at equal intervals along the length direction.

3. A watch strap with a double-layered design and a three-dimensional core according to claim 1, characterized in that, After the sandwich mesh layer (30) is wrapped around the sponge layer (20), its edge has a contact edge (14) that is more than the sponge layer (20). The sandwich mesh layer (30) wraps the sponge layer (20) inside by sewing the contact edge (14).

4. A watch strap with a double-layered design and a three-dimensional core according to claim 1, characterized in that, An adhesive layer is coated on the canvas layer (32), and the canvas layer (32) is bonded to the sponge layer (20) through the adhesive layer.

5. A watch strap with a double-layered design and a three-dimensional core according to claim 1, characterized in that, The mesh surface layer (31) and the monofilament connecting layer (33) are made of fine yarn, and the canvas layer (32) is made of coarse yarn.

6. A watch strap with a double-layered design and a three-dimensional core according to claim 1, characterized in that, The mesh of the surface layer (31) is hexagonal and the aperture is 1mm-2mm.

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