A multi-layered cup structure
By designing a multi-layered cup structure, utilizing honeycomb matrix protrusions and elastic modulus gradients, combined with a temperature-sensitive hydrogel interface layer, the health problems caused by traditional full-fit cups are solved, achieving higher comfort and health protection effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN YUCHENG TECH GRP CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional full-fit bra cups cause health problems for women during wear, such as continuous pressure on the lymphatic system, obstruction of skin respiration, friction heat generation, inability to provide dynamic support, discomfort during strenuous exercise, and exacerbation of breast tenderness during menstruation.
A multi-layer cup structure is designed, including an inner layer, a middle layer and an outer layer. A honeycomb matrix of protrusions is set between the inner layer and the middle layer to form a gap space that is not completely fitted. The elastic modulus gradient design of the inner layer, middle layer and outer layer and the temperature-sensitive hydrogel interface layer provide progressive support and regulate air circulation.
It significantly reduces the contact area between layers, promotes air circulation, alleviates the shortcomings of traditional full-fit bra cups, improves health protection and wearing comfort, meets the biomechanical needs of the human body, and provides dynamic support and heat preservation.
Smart Images

Figure CN224539512U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of underwear technology, and more specifically, to a multi-layer bra cup structure. Background Technology
[0002] The content in this section only provides background information related to this utility model and may not constitute prior art.
[0003] Bras, or women's underwear, are an essential part of modern women's daily wear. They are both decorative and functional, with the main function being the support and shaping effect on the breasts. Therefore, bras use supportive materials such as cup linings or cup interlayers to provide good support and shaping for the breasts.
[0004] In the field of bra design and manufacturing, optimizing the cup structure has always been a core aspect of improving the wearing experience. Traditional bra cup linings often adopt a fully fitted approach. However, traditional fully fitted cups are a major cause of women's health problems due to continuous compression of the lymphatic system and obstruction of skin respiration. At the same time, fully fitted cups cannot provide good dynamic support for the breasts and promote efficient sweating during women's exercise. During strenuous exercise, friction between the cup layers generates heat, further reducing wearing comfort. When sitting for long periods at work, it can compress blood vessels at the bottom of the chest, causing significant pressure stimulation to the bottom of the breasts. During menstruation, fully fitted cups can exacerbate breast tenderness and swelling, which can have a certain impact on women's health. Utility Model Content
[0005] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a multi-layer cup structure that can effectively improve the protection of women's health and improve the comfort of wearing.
[0006] The objective of this utility model is achieved through the following technical solution:
[0007] A multi-layer bra cup structure includes a cup body, a bra band, and shoulder straps. The cup body includes an inner layer, a middle layer, and an outer layer from the inside out. The inner layer is in contact with the user's skin. A first gap is provided between the inner layer and the middle layer. A second gap is provided between the middle layer and the outer layer. A protrusion is provided in the first gap. One end of the protrusion is fixedly connected to the inner layer, and the other end is fixedly connected to the middle layer. Multiple protrusions are provided, and the multiple protrusions are distributed in a honeycomb matrix.
[0008] In some possible embodiments, the main body includes a bottom area, a side area, and a peak area, each of which is provided with a plurality of protrusions; in the bottom area and the side area, the density of the protrusions is set to 6-8 per square centimeter; in the peak area, the density of the protrusions is set to 3-4 per square centimeter.
[0009] In some possible embodiments, the diameter of the bump is set to 3-5 mm, the height of the bump is set to 1.5-2 mm, and the material of the bump is set to silicone or thermoplastic polyurethane.
[0010] In some possible embodiments, the elastic modulus of the inner layer is set to 0.5-1.0 MPa, the elastic modulus of the middle layer is set to 3-5 MPa, and the elastic modulus of the outer layer is set to 8-10 MPa.
[0011] In some possible embodiments, a longitudinal support strip is provided in the undercut area. The longitudinal support strip is corrugated, and there are multiple longitudinal support strips arranged evenly in sequence along the horizontal direction.
[0012] In some possible embodiments, the wavelength of the longitudinal support strip is set to 3.7-4.2 mm, the wave height of the longitudinal support strip is set to 0.9-1.3 mm, and the width of the longitudinal support strip is set to 0.5-0.7 mm.
[0013] In some possible embodiments, the side rib region is provided with oblique ribs, the width of the oblique ribs is set to 1.7-2.2mm, and multiple oblique ribs are provided. The multiple oblique ribs are evenly distributed sequentially along the length direction of the side rib region, and the spacing between two adjacent oblique ribs is set to 4.8-5.3mm.
[0014] In some possible embodiments, a first support slot is provided in the undercut area, and a second support slot is provided in the side section area. A support metal wire is provided in both the first and second support slots, and the support metal wire is a shape memory metal wire.
[0015] In some possible embodiments, the inner layer is covered with a thermosensitive hydrogel interface layer on the side closest to the body surface, and the thermosensitive hydrogel interface layer is in contact with the body surface.
[0016] In summary, the technical solution of this utility model embodiment has at least the following advantages and beneficial effects:
[0017] 1. The inner and middle layers are connected by protrusions distributed in a honeycomb matrix, forming a gap space that is not completely fitted. This significantly reduces the contact area between layers, promotes natural air circulation while maintaining structural stability, effectively alleviates the defects of traditional fully fitted bra cups, improves the protection of women's health, and enhances wearing comfort.
[0018] 2. The elastic modulus gradient design of the inner, middle and outer layers creates a progressive support system of soft, medium and hard from the inside out. The inner layer is flexible and fits to reduce skin pressure, the middle layer provides cushioning, and the outer layer ensures support stability, which meets the biomechanical needs of the human body during movement.
[0019] 3. The temperature-sensitive hydrogel layer on the inner surface can dynamically adjust its physical state according to body temperature. When body temperature rises, it contracts to form tiny gaps to enhance air circulation and heat dissipation. When body temperature drops, it returns to a close fit to achieve a heat-keeping effect, further improving the protection of women's health and enhancing the comfort of wearing it. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0021] Figure 2 This is a cross-sectional view of the cup body according to an embodiment of the present utility model;
[0022] Figure 3 This is a schematic diagram of the protrusion distribution structure according to an embodiment of the present utility model;
[0023] Figure 4 This is a schematic diagram of the internal structure of the undercut area according to an embodiment of the present utility model;
[0024] Figure 5 This is a schematic diagram of the longitudinal support strip in an embodiment of the present invention;
[0025] Figure 6 This is a schematic diagram of the internal structure of the side-component region in an embodiment of the present invention.
[0026] Icons: 1. Bra cup body; 11. Bra band; 12. Shoulder strap; 101. Inner layer; 102. Middle layer; 103. Outer layer; 2. Protruding nipples; 3. Underband area; 31. Vertical support strip; 4. Side bra area; 41. Diagonal ribs; 5. Peak area. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0028] The following is for reference Figures 1 to 6 The present invention will be described in further detail below.
[0029] Reference Figure 1 , Figure 2 and Figure 3 A multi-layer bra cup structure includes a cup body 1, a bra part 11, and a shoulder strap 12. The cup body 1 includes an inner layer 101, a middle layer 102, and an outer layer 103 from the inside to the outside. The inner layer 101 is in contact with the user's body surface. A first gap is provided between the inner layer 101 and the middle layer 102. A second gap is provided between the middle layer 102 and the outer layer 103. A protrusion 2 is provided in the first gap. One end of the protrusion 2 is fixedly connected to the inner layer 101, and the other end is fixedly connected to the middle layer 102. Multiple protrusions 2 are provided, and the multiple protrusions 2 are distributed in a honeycomb matrix.
[0030] In one embodiment of this utility model, the diameter of the protrusion 2 is set to 3-5mm, the height of the protrusion 2 is set to 1.5-2mm, and the material of the protrusion 2 is set to silicone or thermoplastic polyurethane.
[0031] The protrusion 2 is bonded to the fabric layers of the inner layer 101 and the middle layer 102 through a high-temperature pressing process to form a stable spatial support structure. As a preferred embodiment of this utility model, the diameter of the protrusion 2 is set to 4mm and the height of the protrusion 2 is set to 1.5mm. While ensuring the stability of the interlayer connection, it can create a continuous micro air channel between the inner layer 101 and the middle layer 102.
[0032] Reference Figure 1 and Figure 2 The main body includes a lower section 3, a side section 4, and a peak section 5. Several protrusions 2 are provided in each of the lower section 3, side section 4, and peak section 5.
[0033] Among them, reference Figure 2In the underband area 3 and side panel area 4, the density of the bumps 2 is set to 6-8 per square centimeter, and in the peak area 5, the density of the bumps 2 is set to 3-4 per square centimeter. Based on the characteristics of breast pressure distribution, a dense dot matrix is used in the underband area 3 and side panel area 4 where support is more demanding, while a sparse dot matrix is used in the pressure-sensitive peak area 5. This allows the cup design to provide sufficient support to the breasts while effectively reducing pressure on sensitive areas.
[0034] In actual use, the interlayer gap of the point support structure formed by the protrusion 2 has an automatic adjustment function. When the chest deforms due to movement, the gap space can be compressed to absorb energy. When at rest, it can restore its original height, which can effectively improve the air circulation and effectively reduce the surface humidity of the wearer's chest skin, thereby improving the wearer's wearing comfort and protecting the wearer's health.
[0035] In one embodiment of this utility model, the elastic modulus of the inner layer 101 is set to 0.5-1.0 MPa, the elastic modulus of the middle layer 102 is set to 3-5 MPa, and the elastic modulus of the outer layer 103 is set to 8-10 MPa.
[0036] The elastic modulus gradient design of the inner layer 101, middle layer 102, and outer layer 103 creates a progressive support system of soft, medium, and hard layers from the inside out. The inner layer 101 is flexible and fits the skin to reduce pressure, the middle layer provides cushioning, and the outer layer 103 ensures support stability, meeting the biomechanical needs of the human body during movement.
[0037] Reference Figure 4 and Figure 5 The lowering area 3 is provided with longitudinal support bars 31. The longitudinal support bars 31 are corrugated and there are multiple longitudinal support bars 31. The multiple longitudinal support bars 31 are evenly arranged in sequence along the horizontal direction.
[0038] Reference Figure 4 and Figure 5 As one embodiment of this utility model, the wavelength of the longitudinal support bar 31 is set to 3.7-4.2mm, the wave height of the longitudinal support bar 31 is set to 0.9-1.3mm, and the width of the longitudinal support bar 31 is set to 0.5-0.7mm.
[0039] In a preferred embodiment of this invention, the longitudinal support strip 31 has a wavelength of 4mm, a wave height of 1.2mm, and a width of 0.6mm. In actual use, it provides good support in the vertical direction, further improving the support effect of the bra cup.
[0040] Reference Figure 6An oblique rib 41 is provided in the side area 4. The width of the oblique rib 41 is set to 1.7-2.2mm. Multiple oblique ribs 41 are provided. The multiple oblique ribs 41 are evenly distributed along the length direction of the side area 4. The distance between two adjacent oblique ribs 41 is set to 4.8-5.3mm.
[0041] In a preferred embodiment of this utility model, the width of the oblique rib 41 is set to 2mm, and the spacing between two adjacent oblique ribs 41 is set to 5mm.
[0042] In one possible embodiment of this invention, a tree-like channel is provided in the bra cup interlayer. The tree-like channel includes a main channel and branch channels. The main channel extends along the lower edge of the chest, with a width of 3mm and a height of 1.5mm. One end of the branch channel connects to the main channel, and the other end extends to the edge of the bra cup. The width of the branch channel is 1mm. The inner wall of the channel is made of hydrophobic treated polyester fiber, which ensures that sweat on the wearer's skin surface is quickly guided to the outer layer 103 of the bra cup for evaporation.
[0043] In one embodiment of this utility model, the channel density of the tree-like channels in the lowering area 3 is set to 8-10 channels / square centimeter, and the channel density of the tree-like channels in the side comparison area 4 is set to 5-6 channels / square centimeter.
[0044] As one embodiment of this utility model, a first support groove is provided in the lower support area 3, and a second support groove is provided in the side support area 4. Support metal wires are provided in both the first support groove and the second support groove, and the support metal wires are made of memory metal wires.
[0045] In one embodiment of this utility model, the memory metal wire is made of nickel-titanium alloy wire with a phase transition temperature of 34°C. When worn, the memory metal wire automatically restores its preset curvature under the wearer's questioning, forming a support structure that fits the bottom edge of the wearer's chest, which can effectively improve the support effect.
[0046] In one embodiment of this invention, the inner layer 101 is covered with a temperature-sensitive hydrogel interface layer on the side closest to the body surface, and the temperature-sensitive hydrogel interface layer is in contact with the body surface. The temperature-sensitive hydrogel interface layer is made of poly(N-isopropylacrylamide) hydrogel (PNIPAm) with a thickness of 0.8 mm. When the body surface temperature is greater than 33°C, the temperature-sensitive hydrogel interface layer undergoes a phase change and shrinks, automatically forming a breathable gap. When the body surface temperature decreases, the temperature-sensitive hydrogel interface layer returns to its adhered state, thus achieving a heat preservation effect.
[0047] The implementation principle of the multi-layer cup structure proposed in this embodiment of the utility model is as follows:
[0048] The inner layer 101 and the middle layer 102 are connected by protrusions 2 distributed in a honeycomb matrix, forming a gap space that is not completely fitted. This significantly reduces the contact area between layers, and while maintaining structural stability, it can promote natural air circulation, effectively alleviate the defects of traditional fully fitted bra cups, improve the protection of women's health, and enhance the comfort of wearing them.
[0049] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A multi-layer cup structure, characterized in that: The bra includes a cup body (1), a bra part (11), and a shoulder strap (12). The cup body (1) includes an inner layer (101), a middle layer (102), and an outer layer (103) from the inside to the outside. The inner layer (101) is in contact with the user's body surface. A first gap is provided between the inner layer (101) and the middle layer (102). A second gap is provided between the middle layer (102) and the outer layer (103). A protrusion (2) is provided in the first gap. One end of the protrusion (2) is fixedly connected to the inner layer (101), and the other end is fixedly connected to the middle layer (102). There are multiple protrusions (2), and the multiple protrusions (2) are distributed in a honeycomb matrix.
2. The multi-layer cup structure according to claim 1, characterized in that: The main body includes a lower part (3), a side part (4) and a peak part (5), and a number of protrusions (2) are provided in the lower part (3), the side part (4) and the peak part (5); Within the undercut area (3) and the side section area (4), the density of the protrusions (2) is set to 6-8 per square centimeter; Within the peak region (5), the density of the protrusions (2) is set to 3-4 per square centimeter.
3. The multi-layer cup structure according to claim 2, characterized in that: The diameter of the protrusion (2) is set to 3-5mm, the height of the protrusion (2) is set to 1.5-2mm, and the material of the protrusion (2) is set to silicone or thermoplastic polyurethane.
4. The multi-layer cup structure according to claim 1, characterized in that: The elastic modulus of the inner layer (101) is set to 0.5-1.0 MPa, the elastic modulus of the middle layer (102) is set to 3-5 MPa, and the elastic modulus of the outer layer (103) is set to 8-10 MPa.
5. A multi-layer cup structure according to claim 2, characterized in that: The lowering area (3) is provided with a longitudinal support strip (31), the longitudinal support strip (31) is corrugated, and there are multiple longitudinal support strips (31), which are arranged evenly in sequence along the horizontal direction.
6. The multi-layer cup structure according to claim 5, characterized in that: The wavelength of the longitudinal support strip (31) is set to 3.7-4.2 mm, the wave height of the longitudinal support strip (31) is set to 0.9-1.3 mm, and the width of the longitudinal support strip (31) is set to 0.5-0.7 mm.
7. A multi-layer cup structure according to claim 2, characterized in that: The side section region (4) is provided with oblique ribs (41), the width of the oblique ribs (41) is set to 1.7-2.2mm, and there are multiple oblique ribs (41). The multiple oblique ribs (41) are evenly distributed along the length direction of the side section region (4), and the distance between two adjacent oblique ribs (41) is set to 4.8-5.3mm.
8. A multi-layer cup structure according to claim 2, characterized in that: The lowering area (3) is provided with a first support slot, and the side support area (4) is provided with a second support slot. Both the first support slot and the second support slot are provided with a support metal wire, which is a memory metal wire.
9. A multi-layer cup structure according to claim 1, characterized in that: The inner layer (101) is covered with a thermosensitive hydrogel interface layer on the side near the body surface, and the thermosensitive hydrogel interface layer is in contact with the body surface.