CN104770903B - Sports bra - Google Patents

Abstract

The invention relates to a sports bra, which comprises two cups, shoulder straps, a bottom enclosure, a heart, a soil platform, a side table and an attachment; the fabric is made of seven fabrics with dynamic adsorption and transfer functions on sweat, the dynamic transmission comprehensive index of liquid water is more than or equal to 3, and the seven fabrics respectively have different preset Young modulus under different variables. The beneficial effects of the implementation of the invention are as follows: different from the traditional bra, the displacement of the breasts in motion is reduced by improving the pressure or modulus; on the premise of keeping comfort and reducing sports injury as much as possible, the Young modulus of the bra material can be correspondingly and automatically adjusted according to breast displacement caused by different sports intensities, the injury of the breasts caused by high-intensity sports is prevented or reduced, the heat dissipation efficiency of the surface of the breast skin is improved by effectively improving the transmission and evaporation efficiency of sweat in the bra, and the rising rate of the core body temperature of a human body is delayed.

Description

a sports bra

technical field

The invention relates to the field of textile technology, in particular to a sports bra which directly contacts with human skin and is composed of special functional fabrics for improving comfort and health and a preparation method thereof.

Background technique

Female breasts are mainly composed of fat and glands. The superficial fascia of the chest wraps the entire breast, and the Cooper’s ligaments and skin support the breast tissue and fatty tissue. The size and weight of adult women's breasts vary from person to person. Small and medium breasts weigh less than or equal to 500 grams, and large breasts can reach 750 to 1000 grams. Due to factors such as aging and gravity, female breasts may sag.

Bras are underwear used by women to cover and protect breasts. In real life, the size of a bra is expressed by the bra size: the size refers to the size of the lower bust; the type refers to the size of the cup. There are huge differences in the size labeling of bras between different countries and different manufacturers. But the rule is that the larger the size, the larger the underbust size; the higher the type, the greater the gap between the bust and the underbust.

Bras are generally divided into the following parts: cups, straps, shoulder straps, and adjustment buckles. In the process of exercising and fitness, the breasts will vibrate and shake. If you do not wear a bra, the breasts will involuntarily swing greatly, causing permanent damage to the elastic fiber tissue in the breasts, resulting in sagging breasts.

Sports bra is a type of underwear with specific functions that can prevent women's breasts from being damaged during exercise and fitness. At present, the general types of sports bras developed to reduce chest injuries during exercise can be divided into: simple fixed type, pressure fixed type and composite structure type. Wherein the simple and fixed type adopts one layer of elastic mesh fabric to fix, the structure is simple, basically there is no design made for the human body structure, and its fixation is relatively poor. The composite structure has the strongest fixation, and it generally contains special steel brackets to obtain better support and make the fabric stronger. The pressure fixing type is the most widely used type, which mainly relies on the elasticity of the fabric to form pressure on the chest to achieve the purpose of fixing the breast. It usually takes full consideration of ergonomics in tailoring, so as to obtain good fixation at the same time Stay relatively comfortable.

At present, among the sports bras sold on the market, the padded pressure bra is the mainstream and is loved by women. This type of compression sports bra provides women with as much pressure as possible, so that the breasts are as close as possible to the main torso of the woman, so as to minimize the bouncing up and down of the breasts during women's exercise. However, with the continuous development of technology, people have found that not only excessive up and down shaking may damage the breast tissue, but also excessive compression of the chest for a long time during exercise will also damage the breast tissue. Compressing the chest for a long time by a pressure bra not only causes discomfort and pain to the user, but also compresses the blood circulation system and lymphatic circulation system in the breast, causing obstacles to the blood circulation system and lymphatic system. Prolonged use may Lesions in the mammary gland, such as chest tissue necrosis, may develop into breast cancer. In addition, this type of bra usually uses multi-layer fabrics to increase the pressure effect, which reduces the moisture absorption and perspiration performance of the bra. Therefore, after the user sweats, the sweat cannot be discharged in time, and the heat on the body surface cannot be dissipated in time. Accelerate the rise of the user's body temperature and affect the user's sports performance; at the same time, a large amount of sweat will accumulate in the chest pad, and the weight of the chest pad will greatly increase, which will increase the possibility of the chest shaking during exercise. Therefore, people are badly in need of a sports bra that has moderate pressure, can quickly wick away sweat, and can maintain the chest support effect.

In the patent search, it is found that the sports bra patents that have been invented at home and abroad are also aimed at reducing breast injuries during women's sports. Most of them are pressure-fixed sports bras. Among them, Chinese patents No. Two different types of underwire sports bras were invented based on the pressure of different fabric structures on the chest. The former can achieve the effect of effectively pushing and raising the breast while achieving strong support for the chest during exercise; the latter can reduce and prevent breast sagging and loosening during women's exercise, and achieve the fusion of sports corsets and bras. In U.S. Patent No. USP7192333, a kind of bra that is beneficial to breathing regulation during exercise is invented by the cooperation of inverted "V" type design and elastic band in the bra part. According to the European patent retrieval results, US201013202217, US201113294899, and US201113072071 are pressure-fixed sports bras, among which US201113072071 uses an elastic material to enhance the lifting effect on the chest, thereby reducing the discomfort during exercise. US201113294899 uses m-type and w-type double-layer compression fabrics to form a supporting structure with covering and separating functions. This structure, together with the elasticity of the fabric, provides a three-dimensional covering, suspension and pressure effect on the chest, which is then applied to the movement process to prevent breast damage. US201113072071 utilizes an elastic material to invent a sports bra design method that can adjust its compression and cover breast functions during exercise.

The sports bras described in the above-mentioned published patents that reduce breast damage during women's sports are mainly realized by utilizing the elasticity of the fabric, the structure of the fabric and the design of special parts of the bra. The above-mentioned sports bra cannot realize the controllable breast displacement and stress under different exercise states, and cannot realize the function of effectively transmitting and evaporating chest sweat during exercise. By literature search, all do not find the bra with above-mentioned function.

Contents of the invention

The technical problem to be solved by the present invention is to provide a sports bra aiming at the above-mentioned defects of the prior art.

The technical solution adopted by the present invention to solve the technical problem is: a sports bra, including two cups for accommodating the breasts, two shoulder straps respectively connected to the upper parts of the two cups and used for fixing on the human body, The ring-shaped bottom circumference connected to the bottom edge of the two cups, the heart connected between the two cups, the soil platform connected to the lower edge of the cup and the lower edge of the heart, connected to the The bottom side of the cup and is used to build up the side ratio of the breast, and the appendage connected between the heart and the two cups and filling the gap between the shoulder straps; it is characterized in that the shoulder straps, cups, The bottom circumference, chicken heart, soil platform, side ratio, and appendages are made of seven kinds of fabrics that have the function of dynamic adsorption and transfer of sweat, and the comprehensive index of liquid water dynamic transfer of the seven kinds of fabrics is greater than or equal to 3, And the seven fabrics have predetermined different Young's modulus under different deformation amounts.

Preferably, when it is defined that the human body is in a state of low exercise volume when the metabolic rate is ≤ 2.5METs, is in a state of medium exercise volume when the metabolic rate is ≤ 8.0METs, and is in a state of high exercise volume when the metabolic rate is > 8.0METs, the cup adopts the The fabric has a corresponding Young's modulus of cup low exercise in the low exercise state, a corresponding middle cup Young's modulus in the medium exercise state, and a corresponding high cup exercise in the high exercise state Young's modulus, the young's modulus of the low exercise amount of the cup, the Young's modulus of the middle exercise amount of the cup, and the high exercise amount of the cup are different, and all show an increasing trend with the increase of the cup size; The shoulder straps have an initial length of the shoulder straps, and the fabric used for the shoulder straps has a Young's modulus equivalent to the low exercise amount of the cup during the deformation process of the initial length of the shoulder straps with a stretching amount less than or equal to 40%. 1-2 times the low-mobility Young's modulus of the shoulder girdle; during the deformation of the original length of the shoulder girdle with a stretch greater than 40%, it has a shoulder equivalent to 1.5-2.5 times the high-mobility Young's modulus of the cup. Young's modulus with high motion.

Preferably, the cup has an initial length of the cup, and the fabric used in the cup has a Young's modulus of low exercise volume of the cup during the deformation process when the stretch length is less than or equal to 1 cm; when the stretch length is 1-2.5 cm In the modification process between the cups, it has the Young's modulus of the amount of movement in the cup; in the modification process of the stretching length greater than or equal to 2.5cm, it has the Young's modulus of the high amount of movement of the cup.

Preferably, the bottom circumference has an initial length of the bottom circumference, and the fabric used for the bottom circumference has a Young's degree equivalent to the low exercise volume of the cup during the deformation process of the initial length of the bottom circumference with a stretching amount less than or equal to 25%. Low-mobility Young's modulus of 1-2 times the modulus of the bottom circumference; in the deformation process of the initial length of the bottom circumference with a stretching amount greater than 25%, there are 1.5-2.5 equivalent to the high-motion Young's modulus of the cup Times the base circumference High movement Young's modulus.

Preferably, the chicken heart has an initial length of the chicken heart, and the fabric used for the chicken heart has a Young's modulus of 2 equivalent to the low exercise amount of the cup during the deformation process of the initial length of the chicken heart with a stretching amount less than or equal to 20%. - 4 times the Young's modulus of the low exercise volume of the chicken heart; in the deformation process of the original length of the chicken heart with a stretching amount greater than 20%, there is a high exercise volume Yang of 3-5 times of the high exercise volume Young's modulus of the cup. modulus.

Preferably, the soil platform has an initial length of the soil platform, and the fabric used in the soil platform has a Young's modulus equivalent to 1 of the low exercise amount of the cup during the deformation process of the initial length of the soil platform with a stretching amount less than or equal to 20%. -2 times the Young's modulus of low exercise volume of the soil platform; in the deformation process of the initial length of the soil platform with a stretching amount greater than 20%, it has a high exercise volume Yang of 1.5-2.5 times of the high exercise volume Young's modulus of the cup. modulus.

Preferably, the side ratio has a side ratio initial length, and the fabric used in the side ratio has a Young's degree of movement equivalent to that of the cup during the deformation process of the side ratio initial length with a stretching amount less than or equal to 20%. 1-2 times the Young's modulus of the side ratio low-motion amount of the modulus; in the deformation process of the side ratio of the original length with a stretching amount greater than 20%, it has a Young's modulus equivalent to 1.5-2.5 of the high-motion amount of the cup Times the side ratio of high exercise volume Young's modulus.

Preferably, the appendages have an initial length of the appendages, and the fabrics used for the appendages have a Young's degree of exercise equivalent to that of the cups during the deformation process of the initial length of the appendages with a stretch amount less than or equal to 20%. Low-mobility Young's modulus of the appendix at 1-2 times the modulus; 1.5-2.5 of the high-mobility Young's modulus of the cup during deformation of the initial length of the appendage with a stretch greater than 20% Times the high-motion Young's modulus of the appendage.

The beneficial effect of implementing the present invention is: a kind of sports bra is different from the design of the traditional bra by increasing the pressure or modulus to reduce the displacement of the breast in motion; but on the premise of maintaining comfort and reducing sports injuries as much as possible, According to the breast displacement and momentum caused by different exercise intensities, the Young's modulus of the bra material can be automatically adjusted accordingly, and the transfer characteristics of sweat vapor and sweat from the skin surface to the outer surface of the bra can be automatically adjusted, so that it can be used in various exercise states. Wear healthy and comfortable, prevent or reduce the damage to the breast caused by high-intensity exercise, and improve the heat loss efficiency of the chest skin surface by effectively improving the transfer and evaporation efficiency of chest sweat in the bra, and delay the rise rate of the core body temperature of the human body. Wear by women when exercising.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is a structural schematic diagram of a first viewing angle of a preferred embodiment of the sports bra of the present invention;

Fig. 2 is a schematic structural diagram of a second viewing angle of a preferred embodiment of the sports bra of the present invention.

detailed description

In the patent of this invention, a brand-new sports bra is proposed. The core idea of the invention is: starting from the physiological and psychological needs of the human body, it is not an absolute pursuit to reduce the stress during exercise by increasing the pressure or Young's modulus indefinitely. The displacement of the breast, but on the premise of safety and comfort, allows the movement of the breast in a certain range; in order to reduce the pressure caused by the designed bra on the breast. According to the breast displacement and momentum caused by different exercise intensities, the Young's modulus of the bra material and the transfer characteristics of sweat vapor and sweat from the skin surface to the outer surface of the bra are automatically adjusted accordingly, so as to achieve different sports conditions. It can be worn in a healthy and comfortable way, prevent or reduce the damage to the breast caused by high-intensity exercise, and effectively improve the transfer and evaporation efficiency of chest sweat in the bra to improve the heat dissipation efficiency of the chest skin surface and delay the rise rate of the core body temperature of the human body.

The characteristic of this sports bra (as shown in Figures 1 and 2) is a sports bra with shoulder straps, no coasters, no rims, and a specific functional partition design. It is composed of the following specific functional areas: shoulder strap 1, cup 2. Bottom circumference 3, Chicken heart 4, Earth platform 5, Side ratio 6, Attachment 7.

A current technical problem is how to design a fabric that has different Young's modulus under different deformation conditions. For the implementation method of this material, please refer to the inventor's Chinese invention patent application "Development of Design Principle and Manufacturing Method of Flexible Material with Segmental Deformation Modulus and Strength" (application number 201210378062.7). The seven kinds of fabrics in this article are all made according to the "Development of Design Principles and Manufacturing Methods of Flexible Materials with Segmented Deformation Modulus and Strength" (Application No. 201210378062.7).

Another technical problem in this patent is how to design a fabric that has the functions of dynamic adsorption and transfer of liquid water (sweat) under different deformation conditions. For the realization method of this kind of fabric, please refer to the inventor's Chinese invention patent application "Design principle and production method of a porous material with dynamic adsorption and transfer function" (application number 201210378024.1). For the measurement method of the comprehensive index of dynamic transfer of liquid water, please refer to the national standard GB21655.2-2009, the second part of the evaluation of wet and quick drying of textiles, dynamic moisture transfer method. The seven kinds of fabrics in this article are all made according to "the design principle and production method of a porous material with dynamic adsorption and transfer functions" (application number 201210378024.1).

Exercise intensity has a considerable influence on the displacement and acceleration of the breast. Therefore, in order to facilitate the practical operation of the design, different exercise intensity states are represented by metabolic rate in the present invention. Metabolic rate≤2.5METs: low exercise state; 2.5METs<metabolic rate≤8.0METs: medium exercise state; metabolic rate>8.0METs: high exercise state. This representation method is a preferred representation method, but it is not the only representation method, and different classifications can be carried out according to actual needs.

At the same time, the size and quality of the breast are also closely related to the displacement of the breast in motion. Therefore, in this design method, the size of the bra cup is also designed as a variable, and the cup type is from A to G. According to the variables: exercise intensity and cup size, the Young's modulus of the designed sports bra material is designed.

Therefore, in this design method, the basic reference selection table shown in Table 1 is designed for the Young's Young's modulus of different exercise intensities and required cup sizes. The data in the table are preferred parameters, and its range can be 15% up and down of the preferred parameters. The Young's modulus of low exercise amount, Young's modulus of medium exercise amount and Young's modulus of high exercise amount are different, and all of them tend to increase with the increase of cup size.

Table 1 Young's modulus table of sports bra under various sports states (unit: kPa)

Using the above two methods to make a sports bra, including two cups 2 for accommodating the breasts, respectively connected to the upper parts of the two cups 2, and two shoulder straps 1 for fixing on the human body, connected to the two cups The annular bottom circumference 3 of the bottom edge of the cup 2, the chicken heart 4 connected between the two cups 2, the soil platform 5 connected with the lower edge of the cup 2 and the lower edge of the chicken heart 4, and connected to the bottom side of the cup 2, for The side ratio 6 of the molded breast, and the appendage 7 connected between the heart 4 and the two cups 2 and filling the gap between the shoulder straps 1; it is characterized in that the shoulder strap 1, the cup 2, the bottom circumference 3, and the heart 4 , soil platform 5, side ratio 6, and appendage 7 are made of seven kinds of fabrics that have the function of dynamic adsorption and transfer of sweat, and the comprehensive index of liquid water dynamic transfer of the seven kinds of fabrics is greater than or equal to 3, and the seven kinds of fabrics The fabrics have predetermined different Young's modulus under different deformation amounts.

The shoulder strap 1 has the original length of the shoulder strap, and the fabric used in the shoulder strap 1 has a Young's modulus equivalent to 1-2 times of the low exercise amount of the cup during the deformation process of the initial length of the shoulder strap with a stretch less than or equal to 40%. Young's modulus of low exercise amount of the shoulder girdle, preferably 1.5 times in this implementation; in the deformation process of the initial length of the shoulder strap with a stretch greater than 40%, it has 1.5-2.5 times of the Young's modulus of high exercise amount of the cup The Young's modulus of the high amount of movement of the shoulder girdle is preferably 2 times in this implementation.

Cup 2 has the initial length of the cup, and the fabric used for cup 2 has a low-movement Young's modulus of the cup during the deformation process with a stretching length of less than or equal to 1 cm; it has a cup during the deformation process with a stretching length of 1-2.5 cm Medium exercise Young's modulus; high exercise Young's modulus for cups during deformation with stretch length greater than or equal to 2.5cm.

The bottom circumference 3 has the initial length of the bottom circumference, and the fabric used for the bottom circumference 3 has a Young's modulus equivalent to 1-2 times of the low exercise amount of the cup during the deformation process of the initial length of the bottom circumference with a stretching amount less than or equal to 25%. The Young's modulus of the low exercise amount of the bottom circumference is preferably 1.5 times in this implementation; in the deformation process of the initial length of the bottom circumference with a stretching amount greater than 25%, it is equivalent to 1.5-2.5 times of the Young's modulus of the high exercise amount of the cup The Young's modulus of the high movement amount of the bottom circumference is preferably 2 times in this implementation.

The chicken heart 4 has the initial length of the chicken heart, and the fabric used for the chicken heart 4 has a low motion of the chicken heart equivalent to 2-4 times the Young's modulus of the low motion of the cup during the deformation process of the initial length of the chicken heart with a stretch amount less than or equal to 20%. Young's modulus, preferably 3 times in the present implementation; All have the chicken heart high exercise amount Young's that is equivalent to the 3-5 times of cup high exercise amount Young's modulus in the modification process of the chicken heart initial length greater than 20% The modulus is preferably 4 times in this implementation.

The soil platform 5 has the initial length of the soil platform, and the fabric used in the soil platform 5 has a soil platform low movement amount equivalent to 1-2 times of the Young's modulus of the low movement amount of the cup during the deformation process of the initial length of the soil platform with a stretching amount less than or equal to 20%. Young's modulus, preferably 1.5 times in the present implementation; In the deformation process of the initial length of the soil platform with a stretching amount greater than 20%, there are 1.5-2.5 times of the soil platform high movement amount Young's modulus equivalent to the high movement amount Young's modulus of the cup. The modulus is preferably doubled in this embodiment.

Side ratio 6 has a side ratio initial length, and the fabric used in side ratio 6 has 1-2 times the Young's modulus equivalent to the low exercise volume of the cup during the deformation process of the side ratio initial length with a stretch amount less than or equal to 20% The Young's modulus of the side ratio of the low exercise amount is preferably 1.5 times in this implementation; in the deformation process of the side ratio of the initial length with a stretching amount greater than 20%, it is equivalent to 1.5-2.5 times of the Young's modulus of the high exercise amount of the cup The Young's modulus of the side ratio of high motion is preferably 2 times in this implementation.

The appendage 7 has an initial length of the appendage, and the fabric used for the appendage 7 has a Young's modulus equivalent to 1-2 times of the low exercise volume of the cup during the deformation process of the initial length of the appendage with a stretch amount less than or equal to 20% The Young's modulus of low exercise volume of the appendages is preferably 1.5 times in this implementation; in the deformation process of the initial length of the appendages with a stretching amount greater than 20%, it is equivalent to 1.5-2.5 times of the Young's modulus of high exercise volume of the cup The high-mobility Young's modulus of the appendage is preferably 2 times in this embodiment.

In order to further verify the practicability of the present invention, according to the present invention, a series of computer-aided simulation calculations are carried out, and the design principle and feasibility are verified by using computer simulation design software.

Studies have shown (Mason, B.R., K.-A. Page, et al. (1999). "An analysis of movement and discomfort of the female breast during exercise and the effects of breast support in three cases. "Journal of Science and Medicine in Sport 2 (2): 134-144.), women in the process of running naked, in the vertical direction, the breasts need Withstand 2.5 to 3 gravitational accelerations; running in a normal bra can reduce 0.7 gravitational accelerations; running in a sports bra can reduce 1.2 gravitational accelerations. Moreover, the force on the chest is a cyclic force. According to research estimates, a woman's normal activities in a day require the chest to withstand 5,000 cycles of 5 to 15 Newtons (due to the weight of individual chests).

In the present invention, the average exercise level of Chinese adult women reported in the Journal of Nutrition (2010,/05, V.4, P.211) by Chen Xiaorong, Li Keji, etc. is at first referred to the previous research results:

1. Walk slowly (90 steps per minute) 3.5±0.3km/h;

2. Brisk walking (120 steps per minute) 5.2±0.4km/h;

3. Jogging (150 steps per minute) 8.1±1.2km/h;

4. Moderate speed running (180 steps per minute) 11.7±1.9km/h

At the same time, Scurr, J.C., J.L.White, etal. (2011) reported in their paper "Supported and unsupported breast displacement in three dimensions across read mill activity levels." Journal of Sports Sciences 29 (1): 55-61. In the report that the breast has no rest, its breast movement displacement is about 4.2 under the walking condition. +1.0cm; while running, the displacement of the same unsupported breast reached 15.2+4.2cm. Similar observations were also reported in ZhouJ, W.N.Yu, et al. (2012). "Studies of three-dimensional trajectories of breast movement for better bradesign." Textile Research Journal 82 (3): 242-254.

In this embodiment, the finite element structural model of the present invention for sports bras and female breasts is implemented on a computer with a main frequency of CPU of 2.83GHz, dual cores and a memory of 3.25G. The computer adopts WindowsXP operating system, and the version of ABAQUS system is 6.10-2. In this example an adult female with bust and breast size 75B was constructed. According to references Gefen, A. and B. Dilmoney (2007). "Mechanicsoftphenonormalwoman's breast." "Ergonomics56 (5): 868-878.". The parameter of women's chest soft tissue is that Young's modulus is 1.2kPa, and Poisson's ratio is 0.495. Assuming 90 steps per minute is low-volume exercise, the metabolic rate= 2.5METs.Using the finite element model to calculate the vertical displacement of the female chest during exercise, the maximum vertical displacement of the female breast without a bra is obtained at a low exercise level of 2.25cm.

The simulation calculation results show that the maximum vertical stress on the breast at this time is located inside the breast, and the value is 5.681kPa.

Assuming 180 steps per minute is high-intensity exercise, the metabolic rate at this time = 8.2METs. Using the finite element model to calculate the vertical displacement of the female breast during exercise, the maximum vertical displacement of the female breast without a bra is 7.096cm when the amount of exercise is high; at this time, the maximum vertical stress on the breast is located inside the breast. It is 23.4kPa.

The Young's modulus of the shoulder straps, cups and bottom circumference of the sports bra under low exercise conditions are 90kPa, 90kPa, and 90kPa respectively, and Poisson's ratio is 0.495; assuming 90 steps per minute is low-volume exercise, the metabolic rate at this time = 2.4 METs. Using the finite element model to calculate the vertical displacement of the female chest during exercise, the maximum vertical displacement of the female breast wearing a bra is 1.64cm when the amount of exercise is low. kPa.

The Young's modulus of the shoulder straps, cups, and bottom circumference of the sports bra under high-intensity exercise are 90kPa, 90kPa, and 90kPa respectively, and Poisson's ratio is 0.495; assuming 180 steps per minute is high-intensity exercise, the metabolic rate at this time = 8.2 METs. Using the finite element model to calculate the vertical displacement of the female breast during exercise, the maximum vertical displacement of the female breast wearing a bra is 3.74cm when the amount of exercise is high. At this time, the maximum vertical stress on the breast is located on the inner and lower side of the breast. The value is 2.593kPa.

On the basis of the above-mentioned sufficient computer-aided simulation design calculations, using the inventor's prior invention technology to prepare knitted materials with different Young's moduli under different deformation conditions, used in the sports bra of this design, the specific application shows The following table: The actual wearing test results show that in a controlled environmental weather chamber, when the subject (75B) wears the designed sports bra and performs low-volume exercise on a treadmill at a speed of 5km/h, the average maximum breast displacement It is 0.5cm; when a high-volume exercise is performed on a treadmill at a speed of 8km/h, the average maximum displacement of the breast is 1.1cm.

In addition, in a controlled-environment meteorological chamber, the subjects wore the invented bra and commercial bras that do not have the function of dynamic adsorption and transfer of liquid water (sweat) and have only the same Young's modulus under different deformations. For a sports bra, a series of sports comparison wearing tests were carried out in the specified process and time, including the average body temperature change value, the core temperature change value in the body, the microenvironment temperature change value between the chest and the bra, the sweat accumulation value of the left bra cup after exercise, and the comfort The degree of breathability, the degree of air permeability, and the statistical (repeated measurement variance) analysis of the specific test and comparison results are as follows:

Table 1. Average body temperature change values

(Bra: p<0.001; bra*exercise state: p<0.001; exercise state: p<0.001)

Table 2. In vivo core temperature change values

(Bra: p=0.136; bra*exercise state: p<0.001; exercise state: p<0.001)

Table 3. Changes in microenvironment temperature between chest and bra

(Bra: p<0.05; bra*exercise state: p<0.001; exercise state: p=0.066)

Table 4. Sweat accumulation value after exercise in the left bra cup (bra: p<0.05)

bra type Unit (gm ^-2 .h ^-1 ) business bra 162.08±9.50 invented bra 113.43±50.63

Table 5. Subjective questionnaire survey comfort level (uncomfortable-comfortable: 1-7)

(Bra: p<0.001; bra*exercise state: p<0.001; exercise state: p<0.05)

Table 6. Permeability degree of subjective questionnaire survey (stuffy-breathable: 1-7)

(Bra: p<0.05; bra*exercise state: p<0.001; exercise state: p<0.05)

Comparing the effects of different fabric structures on the transfer and evaporation efficiency of the subject's chest sweat, the surface heat loss efficiency and the rise rate of the core body temperature of the human body, the results show that the invented bra has the best results in the skin temperature, fabric and skin microenvironment temperature and Compared with commercial models, indicators such as human body core temperature have significant advantages. In addition, according to the results of the subject's subjective questionnaire, the bra of the present invention also has significant advantages in subjective comfort and breathability.

The performance of the sports bra of the present invention has significant advantages. It mainly relies on the elasticity of the fabric to form pressure on the chest to achieve the purpose of fixing the breasts. It fully considers ergonomics in tailoring, so that it can obtain good fixation at the same time. Maintain relative comfort; according to the breast displacement and momentum caused by different exercise intensities, the Young's modulus of the bra material can be automatically adjusted accordingly, and the transfer characteristics of sweat vapor and sweat from the skin surface to the outer surface of the bra can be automatically adjusted, thereby It can be worn healthily and comfortably in various sports states, prevent or reduce the damage caused by high-intensity exercise to the breasts, and effectively improve the transmission and evaporation efficiency of chest sweat in the bra to improve the heat loss efficiency of the chest skin surface and delay the core of the human body The rising rate of body temperature is suitable for women to wear when exercising.

The present invention is further described above in conjunction with specific embodiments. However, these examples are only used to illustrate the present invention rather than limit the scope of the present invention. In addition, it should be understood that after reading the content of the present invention, those skilled in the art can make various changes and modifications to the present invention, and these equivalent forms also fall within the scope defined in the appended claims of the present application.

Claims (7)

1. a motion bra, including two cups (2) for holding breast, it is connected to said two cup (2) top, for being fixed on two shoulder belts (1) on human body, be connected to said two cup (2) bottom margin ring-type at the bottom of enclose (3), it is connected to the Cor Gigeriae Galli (4) between said two cup (2), the earthen platform (5) being connected with the lower limb of the lower limb of described cup (2) and described Cor Gigeriae Galli (4), it is connected to the bottom sides of described cup (2), for piling side ratio (6) moulding breast, and it is connected between described Cor Gigeriae Galli (4) and two cups (2) and fills up the attaching part (7) of vacancy between described shoulder belt (1), it is characterized in that, described shoulder belt (1), cup (2), the end, enclose the fabric that (3), Cor Gigeriae Galli (4), earthen platform (5), side ratio (6), attaching part (7) are seven kinds of functions that perspiration has dynamic adsorption and transfer of employing respectively and make, and the aqueous water of described seven kinds of fabrics dynamically transmits aggregative index and is all higher than or equal to 3, and described seven kinds of fabrics are respectively provided with predetermined different Young's under different modification amounts,

Wherein, when definition human body is in harmonic motion amount state when metabolism rate��2.5METs, middle quantity of motion state it is in during 2.5METs<metabolism rate��8.0METs, metabolism rate>8.0METs time when being in high quantity of motion state, the fabric that described cup (2) adopts has corresponding cup harmonic motion amount Young's modulus under described harmonic motion amount state, under described middle quantity of motion state, there is quantity of motion Young's modulus in corresponding cup, there is corresponding cup high quantity of motion Young's modulus under described high quantity of motion state, described cup harmonic motion amount Young's modulus, quantity of motion Young's modulus in cup, the numerical value of cup high quantity of motion Young's modulus is different, all along with the increase of cup sizes in increase tendency, described shoulder belt (1) has a shoulder belt initial length, and the fabric that adopts of described shoulder belt (1) is respectively provided with the shoulder belt harmonic motion amount Young's modulus of 1-2 times that is equivalent to described cup harmonic motion amount Young's modulus in the alternative process of the amount of tension shoulder belt initial length less than or equal to 40%,The alternative process of the amount of tension shoulder belt initial length more than 40% is respectively provided with the shoulder belt high quantity of motion Young's modulus of 1.5-2.5 times that is equivalent to described cup high quantity of motion Young's modulus.

2. the motion bra according to described claim 1, it is characterized in that, described cup (2) has cup initial length, and the fabric that described cup (2) adopts has described cup harmonic motion amount Young's modulus in tensile elongation is less than or equal to the alternative process of 1cm; Tensile elongation be between 1-2.5cm alternative process in there is quantity of motion Young's modulus in described cup; There is described cup high quantity of motion Young's modulus in tensile elongation is be more than or equal to the alternative process of 2.5cm.

3. the motion bra according to described claim 2, it is characterized in that, the described end, encloses (3) and has an end and enclose initial length, the fabric that (3) adopt is enclosed at the described end, encloses in the alternative process of initial length the end being respectively provided with 1-2 times that is equivalent to described cup harmonic motion amount Young's modulus at the amount of tension end less than or equal to 25% and encloses harmonic motion amount Young's modulus; Enclose in the alternative process of initial length the end being respectively provided with 1.5-2.5 times that is equivalent to described cup high quantity of motion Young's modulus at the amount of tension end more than 25% and enclose high quantity of motion Young's modulus.

4. the motion bra according to described claim 3, it is characterized in that, described Cor Gigeriae Galli (4) has Cor Gigeriae Galli initial length, the fabric that described Cor Gigeriae Galli (4) adopts, is respectively provided with the Cor Gigeriae Galli harmonic motion amount Young's modulus of 2-4 times that is equivalent to described cup harmonic motion amount Young's modulus in the alternative process of the amount of tension Cor Gigeriae Galli initial length less than or equal to 20%; The alternative process of the amount of tension Cor Gigeriae Galli initial length more than 20% is respectively provided with the Cor Gigeriae Galli high quantity of motion Young's modulus of 3-5 times that is equivalent to described cup high quantity of motion Young's modulus.

5. the motion bra according to described claim 4, it is characterized in that, described earthen platform (5) has earthen platform initial length, the fabric that described earthen platform (5) adopts, is respectively provided with the earthen platform harmonic motion amount Young's modulus of 1-2 times that is equivalent to described cup harmonic motion amount Young's modulus in the alternative process of the amount of tension earthen platform initial length less than or equal to 20%; The alternative process of the amount of tension earthen platform initial length more than 20% is respectively provided with the earthen platform high quantity of motion Young's modulus of 1.5-2.5 times that is equivalent to described cup high quantity of motion Young's modulus.

6. the motion bra according to described claim 5, it is characterized in that, described side ratio (6) has side and compares initial length, the fabric that described side ratio (6) adopts, is respectively provided with the side of 1-2 times that is equivalent to described cup harmonic motion amount Young's modulus than harmonic motion amount Young's modulus in the amount of tension side less than or equal to 20% is than the alternative process of initial length; The side of 1.5-2.5 times that is equivalent to the high quantity of motion Young's modulus of described cup it is respectively provided with than high quantity of motion Young's modulus in the amount of tension side more than 20% is than the alternative process of initial length.

7. the motion bra according to described claim 6, it is characterized in that, described attaching part (7) has attaching part initial length, the fabric that described attaching part (7) adopts, is respectively provided with the attaching part harmonic motion amount Young's modulus of 1-2 times that is equivalent to described cup harmonic motion amount Young's modulus in the alternative process of the amount of tension attaching part initial length less than or equal to 20%; The alternative process of the amount of tension attaching part initial length more than 20% is respectively provided with the attaching part high quantity of motion Young's modulus of 1.5-2.5 times that is equivalent to described cup high quantity of motion Young's modulus.