WO2014063516A1

WO2014063516A1 - Ergonomic mattress manufacturing method

Info

Publication number: WO2014063516A1
Application number: PCT/CN2013/081518
Authority: WO
Inventors: 陈宗勇; 李渝黔; 林坚; 张堂庆; 时小兵; 戴正烈; 刘金权; 刘蓉
Original assignee: 贵州大自然科技有限公司
Priority date: 2012-10-25
Filing date: 2013-08-15
Publication date: 2014-05-01
Also published as: US20140115791A1; CN102894720A; CN102894720B

Abstract

An ergonomic mattress manufacturing method, the mattress comprising a support layer (1) and a slow release layer (2). During the manufacturing process, the rebound rate, thickness and density of the support layer (1) are selected according to the body weight of a user; the body of the user is born by the support layer (1); the rebound rate, thickness and density of the slow release layer (2) are selected according to body curve fall of the user; and the body curve of the user is wrapped around through the deformation of the slow release layer (2). The method compounds the materials having different rebound rates according to both the physiological curves and the body weights of different people to obtain the mattress so as to satisfy individual requirements, and can provide people with an effective support during sleep, thus ensuring the muscles and organs of the human body to have a full rest.

Description

一种人体工程学床垫制作方法技术领域 Ergonomic mattress making method

本发明涉及一种人体工程学床垫制作方法，属于床垫制作技术领域。背景技术说 The invention relates to a method for manufacturing an ergonomic mattress, belonging to the technical field of mattress making. Background art

人类有三分之一的时间是在床上度过，床垫可以说是人们一生当中使用频率与时间最多的用具之一，一张符合人体工程学的床垫带给人们的将是长久的健康睡眠。床垫带给人们的健康睡眠涉书及下列五个因素： 1、保持人体脊柱成自然伸展状态； 2、保持人体与床垫有最大的接触面积，使人体与床垫的接触部位受到尽可能小的抵抗强度； 3、制作床垫的材料导热率较小，具有良好的保暖性能； 4、良好的透气性以满足人体肌肤"呼吸"的需要； 5、保证人体肌肤接触床垫表面时有良好的触感。现有技术中，床垫的制作材料单一，而单一的材料都很难满足人体健康睡眠的全部需要，因为任何一种单一材料都无法同时具备平整支撑性能、适度变形能力、良好的触感及保暖、透气性能。特别是平整支撑性能与适度变形能力对单一材料的床垫来说就是一对矛盾体，良好的平整支撑能力就意味着变形较小，而较小的变形根本无法满足人体需要与床垫有最大的接触面积，造成床垫对人体接触部位的抵抗程度大增，还有的人体部位因为得不到有效支撑而无法获得良好休息，使人体在睡眠时或 /和睡眠后产生不舒适感。对于不同人种，不同年龄阶段的人体重量和曲线都不相同，比如同一年龄阶段的白种人和黄种人相比，体重更大，人体曲线落差更大，因此需要更好的支撑和包裹。 One third of human time is spent in bed. The mattress can be said to be one of the most frequently used and used in life. An ergonomic mattress will bring long-term health to people. Sleep. The mattress brings people's healthy sleep related books and the following five factors: 1. Keep the human spine into a natural stretch state; 2. Keep the human body and the mattress have the largest contact area, so that the contact between the human body and the mattress is as much as possible. Small resistance strength; 3, the material of the mattress is made of small thermal conductivity, with good thermal insulation performance; 4, good breathability to meet the "breathing" needs of human skin; 5, to ensure that human skin contact with the mattress surface Good touch. In the prior art, the mattress is made of a single material, and a single material is difficult to meet all the needs of human health sleep, because any single material can not have flat support performance, moderate deformation ability, good touch and warmth. , breathability. In particular, the flat support performance and moderate deformation ability are a contradiction for a single material mattress. Good flat support ability means less deformation, and smaller deformation can not meet the needs of the human body and the mattress. The contact area causes the mattress to resist the contact area of the human body greatly, and the human body part cannot get a good rest because it is not effectively supported, so that the human body feels uncomfortable during sleep or/and after sleep. For different races, people of different ages have different body weights and curves. For example, Caucasians of the same age group have larger body weights and larger curves than humans, so they need better support and wrapping.

现有的床垫制作方法多采用弹簧或者植物纤维弹性材料作为床垫的芯料材料，夹一层海绵或其它铺垫料，外面简单罩一层不同材质的布套。这种床垫制作方法最大的缺点在于根本没有考虑床垫的不同材质的回弹率、厚度等指标与人体脊柱、生理曲线之间的关系，如何将不同材质的芯料复合起来使人体与床垫的接触部位受到最小的抵抗，并为人体提供平整支撑，没有考虑如何通过调整床垫不同部位的回弹率与厚度来满足人体的自然生理曲线，从而实现人体健康睡眠的需要。以现有方法制作出的床垫由于没有考虑到上述因素，因此很有可能使人体睡眠时的肌肉、器官得不到有效放松，达不到健康睡眠的要求。 The existing mattress making method mostly uses spring or vegetable fiber elastic material as the core material of the mattress, and a layer of sponge or other bedding material is sandwiched, and a cloth cover of different materials is simply covered on the outside. The biggest disadvantage of this mattress making method is that it does not consider the relationship between the rebound rate and thickness of different materials of the mattress and the human spine and physiological curve. How to combine the core materials of different materials The contact between the human body and the mattress is minimally resisted, and the human body is provided with flat support. It is not considered how to adjust the natural physiology curve of the human body by adjusting the rebound rate and thickness of different parts of the mattress, thereby realizing the need for healthy sleep. . Since the mattress made by the existing method does not take the above factors into consideration, it is very likely that the muscles and organs during sleep of the human body cannot be effectively relaxed, and the requirements for healthy sleep cannot be achieved.

发明内容 Summary of the invention

本发明的目的在于，提供一种人体工程学床垫制作方法。该床垫由适度变形能力与良好平整支撑能力的材料复合而成，克服单一材料的局限性，能够满足不同阶段的人体要求，满足了健康睡眠涉及到的多个因素。本发明的技术方案。人体工程学床垫制作方法，所述床垫包括支撑层和缓释层，制作时根据使用者的体重来选择支撑层的回弹率、厚度和密度，通过支撑层承载使用者的身体，根据使用者的人体曲线落差来选择缓释层的回弹率、厚度和密度，通过缓释层的变形来包裹使用者的人体曲线。 It is an object of the present invention to provide an ergonomic mattress making method. The mattress is compounded by materials with moderate deformability and good leveling support. Overcoming the limitations of a single material, it can meet the human requirements at different stages and meet many factors involved in healthy sleep. The technical solution of the present invention. The ergonomic mattress manufacturing method, the mattress comprises a support layer and a sustained release layer, and the rebound rate, the thickness and the density of the support layer are selected according to the user's weight during manufacture, and the user's body is carried by the support layer, according to The user's curve of the human body is selected to select the rebound rate, thickness and density of the sustained release layer, and the deformation of the sustained release layer is used to wrap the user's human body curve.

上述的人体工程学床垫制作方法，所述支撑层的选择范围为：使用者的体重 T 15kg，支撑层的回弹率为 40-45%，厚度为 30-50匪，密度为 120-135kg/m³; In the above ergonomic mattress manufacturing method, the selection range of the support layer is: the user's weight T 15kg, the rebound rate of the support layer is 40-45%, the thickness is 30-50 匪, and the density is 120-135kg. /m ³ ;

15kg<T^40kg, 支撑层的回弹率为 38-43%，厚度为 50-70匪，密度为 115-125kg/m³; 15kg<T^40kg, the rebound rate of the support layer is 38-43%, the thickness is 50-70匪, and the density is 115-125kg/m ³ ;

40kg < T 70kg，支撑层的回弹率为 35-40，厚度为 80-100，密度为 110-120kg/m³; 40kg < T 70kg, the rebound rate of the support layer is 35-40, the thickness is 80-100, and the density is 110-120kg/m ³ ;

70kg<T^ 100kg , 支撑层的回弹率为 40-45，厚度为 110-130mm，密度为 120- 135kg/m³; 70kg<T^ 100kg, the rebound rate of the support layer is 40-45, the thickness is 110-130mm, and the density is 120-135kg/m ³ ;

100kg<T 150kg，支撑层的回弹率为 40-45，厚度为 140_160匪，密度为 120- 135kg/m³。 100kg<T 150kg, the support layer has a rebound rate of 40-45, a thickness of 140_160匪, and a density of 120-135kg/m ³ .

上述的人体工程学床垫制作方法，所述支撑层的选择范围为：使用者的体重 T 15kg，支撑层的回弹率为 41-43%，厚度为 35-45匪，密度为 125-130kg/m³; 15kg<T^40kg, 支撑层的回弹率为 40-42%，厚度为 55-65mm，密度为 118-122kg/m³; In the above ergonomic mattress manufacturing method, the selection range of the support layer is: the user's weight T 15kg, the rebound rate of the support layer is 41-43%, the thickness is 35-45 inches, and the density is 125-130kg. /m ³ ; 15kg<T^40kg, the rebound rate of the support layer is 40-42%, the thickness is 55-65mm, and the density is 118-122kg/m ³ ;

40kg<T 70kg，支撑层的回弹率为 37-39%，厚度为 85-95mm，密度为 112-118kg/m³; 40kg<T 70kg, the rebound rate of the support layer is 37-39%, the thickness is 85-95mm, and the density is 112-118kg/m ³ ;

70kg<T^ 100kg, 支撑层的回弹率为 41-43%，厚度为 115-125匪，密度为 125-130kg/m³; 70kg<T^ 100kg, the rebound rate of the support layer is 41-43%, the thickness is 115-125匪, and the density is 125-130kg/m ³ ;

100kg<T 150kg，支撑层的回弹率为 40-42%，厚度为 145-155，密度为 125-130kg/m 100kg<T 150kg, the rebound rate of the support layer is 40-42%, the thickness is 145-155, and the density is 125-130kg/m.

上述的人体工程学床垫制作方法，所述缓释层的选择范围为： In the above ergonomic mattress manufacturing method, the selection range of the sustained release layer is:

10111111<使用者的人体曲线落差 L 20mm，缓释层的回弹率为 25-30%，厚度为 25-30mm，密度为 70-80kg/m³; 10111111<The user's human body curve drop is L 20mm, the rebound rate of the sustained release layer is 25-30%, the thickness is 25-30mm, and the density is 70-80kg/m ³ ;

20mm<L^ 35mm, 缓释层的回弹率为 22_25%，厚度为 40-50mm，密度为 65-70kg/m³; 20mm<L^ 35mm, the rebound rate of the sustained release layer is 22_25%, the thickness is 40-50mm, and the density is 65-70kg/m ³ ;

35mm<L^ 50mm, 缓释层的回弹率为 18_23%，厚度为 60-75mm，密度为 60_65kg/m³; 35mm<L^ 50mm, the rebound rate of the sustained release layer is 18_23%, the thickness is 60-75mm, and the density is 60_65kg/m ³ ;

50mm<L^ 80mm, 缓释层的回弹率为 15_20%，厚度为 80-100匪，密度为 55_60kg/m³; 50mm<L^ 80mm, the rebound rate of the sustained release layer is 15_20%, the thickness is 80-100匪, and the density is 55_60kg/m ³ ;

10111111<使用者的人体曲线落差 L 20mm，缓释层的回弹率为 26-28%，厚度为 26-28匪，密度为 72-78kg/m³; 10111111 <The user's human body curve drop is L 20mm, the rebound rate of the sustained release layer is 26-28%, the thickness is 26-28匪, and the density is 72-78kg/m ³ ;

20mm<L^ 35mm, 缓释层的回弹率为 23_24%，厚度为 43-48mm，密度为 20mm<L^ 35mm, the rebound rate of the sustained release layer is 23_24%, the thickness is 43-48mm, and the density is

66_68kg/m³; 66_68kg/m ³ ;

35™< L 50匪，缓释层的回弹率为 19-21%，厚度为 65-70，密度为 61_63kg/m³; 35TM< L 50匪, the sustained release layer has a rebound rate of 19-21%, a thickness of 65-70, and a density of 61_63kg/m ³ ;

5(km<L 80匪，缓释层的回弹率为 17-19%，厚度为 85-95匪，密度为 56_58kg/m³; 5 (km<L 80匪, the rebound rate of the sustained release layer is 17-19%, the thickness is 85-95匪, and the density is 56_58kg/m ³ ;

上述的人体工程学床垫制作方法，所述支撑层和缓释层上设有舒适层，舒适层的回弹率为 15-20%，厚度为 10-20匪，密度为 50-60kg/m3。上述的人体工程学床垫制作方法，所述舒适层的回弹率为 16-18%，厚度为 12- 18匪，密度为 52-58kg/m In the above ergonomic mattress manufacturing method, the support layer and the sustained release layer are provided with a comfort layer. The comfort layer has a rebound rate of 15-20%, a thickness of 10-20 匪, and a density of 50-60 kg/m3. In the above ergonomic mattress manufacturing method, the comfort layer has a rebound rate of 16-18%, a thickness of 12-18 匪, and a density of 52-58 kg/m.

本发明的方法念是根据使用者的身体情况，来设计制作符合使用者使用的床垫，本发明的床垫分为三层：支撑层必须具有平整支撑的作用，但也必须具备在一定压力下有适当变形的能力，在给予人体足够支撑的同时具备舒适性；缓释层需要有较大的变形来吸收人体的一部分压力，并将人体压力均匀传递给支撑层；舒适层可与肌肤直接接触，起着透气、保暖的作用，具备一定的变形能力，提供人体高舒适度的触感，并将人体压力通过缓释层传递到支撑层。通过将具备不同变形能力的材料叠加、组合后，不同的材料在人体睡眠时发挥不同的功效：支撑、缓释（分散压力）、透气、保暖、良好触感。通过申请人试验，支撑层、缓释层及舒适层应该具有不同的变形能力，它们的变形能力以支撑层最小、缓释层次之、舒适层最大。人类在睡眠时，其脊柱都会有一个曲线，一张好的床垫能让人体的脊柱保持自然伸展状态，不受压、不受挤、不变形，支撑层能够提供良好的平整支撑性能，缓释层提供适度变形能力，二者相结合能保证人体脊柱处于自然伸展状态；床垫适度的变形能力能保持人体与床垫有最大的接触面积；选择透气、保暖材料结合具有良好触感的面料制成床垫的舒适层，以满足人体对床垫要具有保暖、透气及良好触感的要求。 The method of the invention is designed according to the physical condition of the user, and the mattress of the invention is divided into three layers: the support layer must have the function of flat support, but must also have a certain pressure. The ability to properly deform is comfortable while giving sufficient support to the human body; the sustained release layer needs to have a large deformation to absorb part of the body's pressure, and the body pressure is evenly transmitted to the support layer; the comfort layer can be directly connected with the skin. The contact, which plays the role of ventilation and warmth, has a certain deformability, provides a high-comfort touch of the human body, and transmits the human body pressure to the support layer through the sustained release layer. By superimposing and combining materials with different deformability, different materials play different functions in the body's sleep: support, sustained release (dispersion pressure), ventilation, warmth, good touch. Through the applicant's test, the support layer, the sustained release layer and the comfort layer should have different deformation capabilities, and their deformation ability is the smallest, the slow release layer and the maximum comfort layer. When a human sleeps, its spine will have a curve. A good mattress can keep the spine of the body naturally stretched, without being pressed, squeezed, deformed, and the support layer can provide good flat support performance. The release layer provides moderate deformability, and the combination of the two can ensure that the human spine is in a natural stretch state; the moderate deformability of the mattress can maintain the maximum contact area between the human body and the mattress; the breathable and warm materials are combined with the fabric with good touch. The comfort layer of the mattress is to meet the requirements of the human body for warmth, breathability and good touch.

本发明将具有适度变形能力的缓释层与良好平整支撑能力的支撑层复合，克服了单一材料的局限性，满足了健康睡眠涉及到的 1和 2两个因素。剩下的健康睡眠的 3、 4、 5三个因素通过采用触感良好的面料与保暖、透气、变形较大的材料复合，制成与人体接触的舒适层，满足人体肌肤的舒适触感。缓释层能够保证舒适层与人体肌肤有最大的面接触，将人体的压力分散到尽可能大的面积上。人体的压力通过舒适层的变形传递到缓释层，缓释层的变形量小于舒适层，缓释层变形后，基本使人体睡眠时的曲线达到自然伸展状态，并通过缓释层之间力的传递，使人体的压力分散到更大的面积上。最后，作为底层（支撑层）的由最大抵抗程度的材料制成，由中间层（缓释层）传递来的人体压力会使底层（支撑层）发生微小的变形，从而在保证床垫对整个人体的良好支撑的情况下，继续扩大人体睡眠时的舒适度，保证脊柱与人体曲线成自然伸展状态。 The invention combines the sustained release layer with moderate deformation ability with the support layer with good flat support ability, overcomes the limitation of the single material, and satisfies the two factors of 1 and 2 involved in healthy sleep. The remaining 3, 4, and 5 factors of healthy sleep are combined with materials that are warm, breathable, and deformed by using a fabric with good feel to make a comfortable layer in contact with the human body to satisfy the comfortable touch of the human skin. The sustained-release layer ensures that the comfort layer has the largest surface contact with the human skin, and the pressure of the human body is dispersed to the largest possible area. The pressure of the human body is transmitted to the sustained-release layer through the deformation of the comfort layer. The deformation of the sustained-release layer is smaller than that of the comfort layer. After the deformation of the sustained-release layer, the curve of the human body is basically stretched to a natural stretch state, and the force between the sustained-release layers is passed. The transmission of the body's pressure spreads over a larger area. At last, As the bottom layer (support layer) made of the material with the greatest resistance, the human body pressure transmitted by the intermediate layer (sustained release layer) causes the bottom layer (support layer) to be slightly deformed, thereby ensuring the mattress to the entire human body. In the case of good support, continue to expand the comfort of the human body to sleep, to ensure that the spine and the human body curve is naturally stretched.

而且本发明的床垫，能够通过调整支撑层、缓释层及保暖舒适层的厚度、回弹率来满足不同人种，不同年齢的人群因身体处在不同的发育阶段而对床垫的不同需求：如婴幼儿床垫、青少年床垫、成人床垫、中老年人床垫，这样的结构保证了人体的脊柱曲线在睡眠时保持自然伸展状态，保证床垫与人体曲线的完美贴合，实现健康睡眠。 Moreover, the mattress of the present invention can satisfy different races by adjusting the thickness of the support layer, the sustained release layer and the warm comfort layer, and the rebound rate, and the different age groups have different mattresses due to the different development stages of the body. Requirements: such as infant mattresses, teen mattresses, adult mattresses, middle-aged and elderly mattresses, this structure ensures that the human body's spine curve remains naturally stretched during sleep, ensuring a perfect fit between the mattress and the human body curve. Achieve healthy sleep.

申请人长期致力于健康、自然、科学睡眠的研究，是我国植物纤维床垫的发明者、开创者及领导者，是集生产、销售、研发为一体的专业公司。经过多年的生产、研究，总结出了使用者的体重、人体曲线与床垫支撑层和缓释层的密度、弹性的关系，针对不同的使用者，可以提供与之适应的床垫。其中，人体曲线落差是通过以下方法测试得到：人体俯卧一个不会变形的平台上，身体放松并尽量与平台自然接触，测量臀部的最高点的高度与腰部最低点的高度差，即为人体曲线落差。由于每个使用者人体曲线的不同，躺在床上脊柱的形状也不相同，例如，同是成年人，体重 50kg和 100kg的人，体重 100kg的人选择的支撑层应该更厚，回弹率大，支撑效果更好。由于后者体重大，脂肪厚，腰部以及臀部肥大，人体曲线落差也大。平躺时，脊柱变形更严重，因此，需要选择的缓释层的厚度要大于睡觉的人的人体曲线落差，并根据不同的体重选择缓释层的回弹率，只有这样才能够更好的包裹人体，让脊柱保持平直舒展；全身能够得到充分放松。 The applicant has long been committed to the study of healthy, natural and scientific sleep. He is the inventor, pioneer and leader of plant fiber mattresses in China. He is a professional company integrating production, sales and R&D. After years of production and research, the relationship between the user's weight and the human body curve and the density and elasticity of the mattress support layer and the release layer has been summarized. For different users, a mattress can be provided. Among them, the human body curve drop is obtained by the following methods: The human body is lying on a platform that does not deform, the body is relaxed and naturally touches the platform as much as possible, and the height difference between the highest point of the buttock and the lowest point of the waist is measured, that is, the human body curve Drop. Due to the difference in the curve of each user's body, the shape of the spine in the bed is different. For example, for adults, people weighing 50kg and 100kg, people with a weight of 100kg should choose a thicker support layer and a higher rebound rate. , the support effect is better. Because the latter is large, fat, waist and hip hypertrophy, the body curve is also large. When lying down, the deformation of the spine is more serious. Therefore, the thickness of the sustained release layer to be selected is greater than the thickness of the human body curve of the sleeping person, and the rebound rate of the sustained release layer is selected according to different body weights. Only in this way can it be better. Wrap the body, keep the spine straight and stretch; the whole body can be fully relaxed.

不同厚度与回弹率的支撑层的作用在于为人体提供平整支撑与保暖的作用，保持脊柱成自然伸展状态。不同厚度与回弹率的缓释层的作用在于保证人体外形的自然曲线，减少人体与床垫的接触部位受到较小的抵抗强力，使人体的肌肉、组织及器官得到有效放松，不同厚度与回弹率的舒适层的作用在于进一歩加强缓释层的作用，并起到透气、保暖及良好触感的作用。厚度与回弹率没有必然的关系，但是回弹率与密度有一定关系，密度较大的，回弹率则大，反之亦然。 The role of the support layer of different thickness and rebound rate is to provide the body with a flat support and warmth, keeping the spine in a natural stretch state. The effect of the slow-release layer with different thickness and rebound rate is to ensure the natural curve of the human body shape, reduce the contact strength between the human body and the mattress, and the muscles, tissues and organs of the human body can be effectively relaxed, with different thicknesses. The comfort layer of the rebound rate acts to strengthen the sustained release layer and to provide breathability, warmth and good touch. Thick There is no necessary relationship between the degree and the rebound rate, but the rebound rate has a certain relationship with the density. If the density is large, the rebound rate is large, and vice versa.

申请人根据长期生产过程中收集和总结的经验，并完成了上千例实验，得到了丰富的原始数据，根据这些数据进行了科学的统计分析、归纳整理，最终得到了不同体重、不同人体曲线下的最佳参数组合。由于舒适层仅仅具有辅助缓释层包裹功能的作用，它的主要作用是透气、保暖及为人体提供良好的触感，因此试验时皆以同种材质的回弹率为 20%、厚度为 10mm、密度为 60kg/m³的舒适层进行试验。 Based on the experience of collecting and summarizing in the long-term production process, the applicant completed thousands of experiments and obtained rich raw data. Based on these data, scientific statistical analysis and induction were carried out, and finally different body weights and different human body curves were obtained. The best combination of parameters. Since the comfort layer only has the function of assisting the release function of the sustained-release layer, its main function is to breathe, keep warm and provide a good touch to the human body. Therefore, the rebound rate of the same material is 20% and the thickness is 10 mm. The comfort layer with a density of 60 kg/m ³ was tested.

典型系列试验一: Typical series of tests 1:

典型系列试验二:

Typical series test two:

体重 64kg 脊柱自然伸展、身体曲线与床垫贴合有微小空隙，人体曲线落差 45mm 身体与床垫接触部位感觉有较强的抵触感。

Weight 64kg The spine naturally stretches, the body curve and the mattress fit a small gap, the human body curve falls 45mm. The body and the mattress contact part feel strong resistance.

体重 80kg 脊柱受挤压变形，肌肉紧张，不能进行正常睡眠。人体曲线落差 57mm 典型系列试验三： Weight 80kg The spine is deformed by compression, muscles are tight, and normal sleep cannot be performed. Human body curve drop 57mm Typical series test three:

典型系列试验四： Typical series of test four:

典型系列试验五:

Typical series test five:

典型系列试验六:

由上述实验可知，本发明的床垫不再是简单的进行成年、少年、婴儿等使用者对象的划分，而是细化为多种支撑层、缓释层参数的床垫。使用者购买床垫时，不再只是根据年龄和个人的体验来盲目选择。而是通过每个使用者体重以及人体曲线落差的测量，给出合理的床垫支撑层、缓释层的参数范围，再由使用者自身体验，在所给参数范围中选出自身感觉舒服，符合自己喜好的床垫。同现有技术相比，本发明将具有不同回弹率的材料依照不同人体生理曲线与体重两个指标复合后得到的床垫，符合个人的需求，在人体睡眠时，能为人体提供有效支撑，保证人体从肌肉到器官都得到充分的休息。通过这种床垫设计方法，能够科学的为每一个个体提供与众不同的符合个体需要的床垫。 Typical series test six:

As can be seen from the above experiments, the mattress of the present invention is no longer simply divided into user objects such as adult, juvenile, and infant, but is a mattress that is refined into a plurality of supporting layers and sustained-release layer parameters. When users buy mattresses, they are no longer blindly chosen based on age and personal experience. Rather, by measuring the weight of each user and the curve of the human body curve, the reasonable parameter range of the mattress support layer and the sustained release layer is given, and then the user experiences it, and the user feels comfortable in the given parameter range. A mattress that suits your preferences. Compared with the prior art, the present invention combines materials with different rebound rates according to different human physiological curves and body weights to obtain a mattress, which meets the individual's needs and can provide effective support for the human body when the human body sleeps. , to ensure that the body from the muscles to the organs are fully rested. Through this mattress design method, it is possible to scientifically provide each individual with a distinctive mattress that meets the individual needs.

附图说明 DRAWINGS

附图 1为本发明的一种结构示意图； Figure 1 is a schematic structural view of the present invention;

附图 2为本发明的另一种结构示意图。 Figure 2 is a schematic view of another structure of the present invention.

具体实施方式本发明的实施例 1。人体工程学床垫制作方法，所述床垫包括支撑层 1 和缓释层 2，制作时根据使用者的体重来选择支撑层 1的回弹率、厚度和密度，通过支撑层 1承载使用者的身体，根据使用者的人体曲线落差来选择缓释层 2的回弹率、厚度和密度，通过缓释层 2的变形来包裹使用者的人体曲线。 Best Mode for Carrying Out the Invention Embodiment 1 of the present invention. The ergonomic mattress manufacturing method comprises the support layer 1 and the sustained release layer 2, and the rebound rate, the thickness and the density of the support layer 1 are selected according to the user's weight during manufacture, and the user is carried by the support layer 1 The body selects the rebound rate, thickness and density of the sustained release layer 2 according to the user's body curve drop, and wraps the user's human body curve by the deformation of the sustained release layer 2.

经试验，支撑层 1的选择范围如下，能够达到本发明的效果。 After the test, the selection range of the support layer 1 is as follows, and the effects of the present invention can be attained.

使用者的体重 T 15kg，支撑层 1的回弹率为 40-45%，厚度为 30-50匪，密度为 120-135kg/m³; The weight of the user is T 15kg, the rebound rate of the support layer 1 is 40-45%, the thickness is 30-50 匪, and the density is 120-135 kg/m ³ ;

15kg<T^40kg, 支撑层 1的回弹率为 38-43%，厚度为 50-70匪，密度为 115- 125kg/m³; 15kg<T^40kg, the rebound ratio of the support layer 1 is 38-43%, the thickness is 50-70匪, and the density is 115-125kg/m ³ ;

40kg<T 70kg，支撑层 1的回弹率为 35-40，厚度为 80-100，密度为 110-120kg/m³; 40kg<T 70kg, the rebound ratio of the support layer 1 is 35-40, the thickness is 80-100, and the density is 110-120kg/m ³ ;

70kg<T^ 100kg, 支撑层 1的回弹率为 40-45，厚度为 110_130匪，密度为 120-135kg/m³; 70kg<T^ 100kg, the rebound ratio of the support layer 1 is 40-45, and the thickness is 110_130匪, dense Degree is 120-135kg/m ³ ;

100kg<T 150kg，支撑层 1的回弹率为 40-45，厚度为 140_160匪，密度为 120-135kg/m³。 100kg < T 150kg, the support layer 1 has a rebound rate of 40-45, a thickness of 140_160 匪, and a density of 120-135 kg/m ³ .

缓释层 2的选择范围如下： The selection range of the sustained release layer 2 is as follows:

10111111<使用者的人体曲线落差 L 20mm，缓释层 2的回弹率为 25_30%，厚度为 25-30mm，密度为 70-80kg/m³ _; 10111111 <user's human body curve drop L 20mm, sustained release layer 2 rebound rate of 25_30%, thickness of 25-30mm, density of 70-80kg / m ³ _;

20匪 <L 35匪，缓释层 2的回弹率为 22-25%, 厚度为 40- 50匪，密度为 65-70kg/m³; 20匪<L 35匪, the sustained release layer 2 has a rebound rate of 22-25%, a thickness of 40-50 匪, and a density of 65-70 kg/m ³ ;

35匪< 50匪，缓释层 2的回弹率为 18-23%，厚度为 60-75mm，密度为 60_65kg/m³; 35匪< 50匪, the sustained release layer 2 has a rebound rate of 18-23%, a thickness of 60-75mm, and a density of 60_65kg/m ³ ;

50mm<L^ 80mm, 缓释层 2的回弹率为 15_20%，厚度为 80-100mm，密度为 55_60kg/m³; 50mm<L^ 80mm, the rebound rate of the sustained release layer 2 is 15-20%, the thickness is 80-100mm, and the density is 55_60kg/m ³ ;

在支撑层 1 和缓释层 2 上还制作有舒适层 4，舒适层 4 的回弹率为 15-20%, 厚度为 10-20mm, 密度为 50- 60kg/m³。 A comfort layer 4 is also formed on the support layer 1 and the sustained release layer 2, and the comfort layer 4 has a rebound rate of 15-20%, a thickness of 10-20 mm, and a density of 50-60 kg/m ³ .

如图 2所示，为了床垫使用过程中不移位，在支撑层 1和缓释层 2之间通过乳胶层 3进行粘接。 As shown in Fig. 2, in order to prevent displacement of the mattress during use, the latex layer 3 is bonded between the support layer 1 and the sustained release layer 2.

本发明的实施例 2。人体工程学床垫制作方法，所述床垫包括支撑层 1 和缓释层 2，制作时根据使用者的体重来选择支撑层 1的回弹率、厚度和密度，通过支撑层 1承载使用者的身体，根据使用者的人体曲线落差来选择缓释层 2的回弹率、厚度和密度，通过缓释层 2的变形来包裹使用者的人体曲线。 Embodiment 2 of the present invention. The ergonomic mattress manufacturing method comprises the support layer 1 and the sustained release layer 2, and the rebound rate, the thickness and the density of the support layer 1 are selected according to the user's weight during manufacture, and the user is carried by the support layer 1 The body selects the rebound rate, thickness and density of the sustained release layer 2 according to the user's body curve drop, and wraps the user's human body curve by the deformation of the sustained release layer 2.

其中，支撑层 1更好的选择范围为： Among them, the better choice of support layer 1 is:

使用者的体重 T 15kg，支撑层 1的回弹率为 41-43%，厚度为 35-45匪，密度为 125-130kg/m³; The weight of the user is T 15kg, the rebound rate of the support layer 1 is 41-43%, the thickness is 35-45 匪, and the density is 125-130 kg/m ³ ;

15kg<T 40kg，支撑层 1的回弹率为 40-42%, 厚度为 55- 65匪，密度为 118- 122kg/m³; 15kg<T 40kg, the rebound ratio of the support layer 1 is 40-42%, the thickness is 55-65匪, and the density is 118-122kg/m ³ ;

40kg<T 70kg，支撑层 1的回弹率为 37-39%, 厚度为 85— 95匪，密度为 112- 118kg/m³; 40kg<T 70kg, the rebound rate of the support layer 1 is 37-39%, the thickness is 85-95匪, the density It is 112-118kg/m ³ ;

70kg<T^ 100kg, 支撑层 1的回弹率为 41-43%，厚度为 115-125匪，密度为 125-130kg/m³; 70kg<T^ 100kg, the rebound ratio of the support layer 1 is 41-43%, the thickness is 115-125匪, and the density is 125-130kg/m ³ ;

100kg<T 150kg，支撑层 1的回弹率为 40_42%，厚度为 145-155，密度为 125-130kg/m³。 100kg < T 150kg, the support layer 1 has a rebound rate of 40_42%, a thickness of 145-155, and a density of 125-130 kg/m ³ .

缓释层 2更好的选择范围为： The best choice for the sustained release layer 2 is:

10111111<使用者的人体曲线落差 L 20mm，缓释层 2的回弹率为 26_28%，厚度为 26- 28匪，密度为 72- 78kg/m³; 10111111<User's human body curve drop L 20mm, sustained release layer 2 rebound rate is 26_28%, thickness is 26-28%, density is 72-78kg/m ³ ;

20匪 <L 35匪，缓释层 2的回弹率为 23-24%，厚度为 43_48匪，密度为 66_68kg/m³; 20匪<L 35匪, the sustained release layer 2 has a rebound rate of 23-24%, a thickness of 43_48匪, and a density of 66_68kg/m ³ ;

35mm<L^ 50mm, 缓释层 2的回弹率为 19_21%，厚度为 65_70，密度为 61_63kg/m³; 35mm<L^ 50mm, the rebound rate of the sustained release layer 2 is 19_21%, the thickness is 65_70, and the density is 61_63kg/m ³ ;

5(km<L 80匪，缓释层 2的回弹率为 17-19%，厚度为 85-95mm，密度为 56 - 58kg/m³。 5 (km < L 80 匪, the release layer 2 has a rebound rate of 17-19%, a thickness of 85-95 mm, and a density of 56 - 58 kg/m ³ .

在支撑层 1和缓释层 2上还制作有舒适层 4，舒适层 4的回弹率为 16-18%，厚度为 12-18mm, 密度为 52- 58kg/m³。本发明的实施例 3。人体工程学床垫制作方法，所述床垫包括支撑层 1 和缓释层 2，制作时根据使用者的体重来选择支撑层 1的回弹率、厚度和密度，通过支撑层 1承载使用者的身体，根据使用者的人体曲线落差来选择缓释层 2的回弹率、厚度和密度，通过缓释层 2的变形来包裹使用者的人体曲线。 On the support layer 1 and the release layer 2 is also produced with a comfort layer 4, the comfort layer 4 of the resiliency of 16-18%, a thickness of 12-18 mm, a density of 52- 58kg / m ^3. Embodiment 3 of the present invention. The ergonomic mattress manufacturing method comprises the support layer 1 and the sustained release layer 2, and the rebound rate, the thickness and the density of the support layer 1 are selected according to the user's weight during manufacture, and the user is carried by the support layer 1 The body selects the rebound rate, thickness and density of the sustained release layer 2 according to the user's body curve drop, and wraps the user's human body curve by the deformation of the sustained release layer 2.

使用者的体重 T 15kg，支撑层 1的回弹率为 42%，厚度为 40mm，密度为 128kg/m³; The weight of the user is T 15kg, the rebound rate of the support layer 1 is 42%, the thickness is 40mm, and the density is 128kg/m ³ ;

15kg < T 40kg，支撑层 1 的回弹率为 41%，厚度为 60匪，密度为 120kg/m³; 15kg < T 40kg, the rebound ratio of the support layer 1 is 41%, the thickness is 60匪, and the density is 120kg/m ³ ;

40kg < T ^ 70kg , 支撑层 1 的回弹率为 37%，厚度为 90匪，密度为 115kg/m³; 40kg < T ^ 70kg, the rebound ratio of the support layer 1 is 37%, the thickness is 90匪, and the density is 115kg/m ³ ;

70kg<T^ 100kg , 支撑层 1 的回弹率为 42%，厚度为 120匪，密度为 125kg/m³; 70kg<T^ 100kg, the rebound rate of the support layer 1 is 42%, the thickness is 120匪, and the density is 125kg/m ³ ;

100kg<T 150kg，支撑层 1 的回弹率为 42%，厚度为 150匪，密度为 130kg/m³。 100kg < T 150kg, the support layer 1 has a rebound rate of 42%, a thickness of 150 匪, and a density of 130 kg/m ³ .

10111111<使用者的人体曲线落差 L 20mm，缓释层 2的回弹率为 27%，厚度为 27mm，密度为 75kg/m³; 10111111 <The user's human body curve drop L 20mm, the sustained release layer 2 has a rebound rate of 27%, a thickness of 27mm, and a density of 75kg/m ³ ;

20mm<L^ 35mm,缓释层 2的回弹率为 23%，厚度为 45mm，密度为 67kg/m³;20mm<L^ 35mm, the rebound rate of the sustained release layer 2 is 23%, the thickness is 45mm, and the density is 67kg/m ³ ;

35mm<L^ 50mm,缓释层 2的回弹率为 20%，厚度为 67mm，密度为 62kg/m³;35mm<L^ 50mm, the rebound rate of the sustained release layer 2 is 20%, the thickness is 67mm, and the density is 62kg/m ³ ;

50mm<L 80mm，缓释层 2的回弹率为 17%，厚度为 90mm，密度为 57kg/m³; 在支撑层 1和缓释层 2上还制作有舒适层 4，舒适层 4的回弹率为 17%，厚度为 15匪，密度为 55kg/m 本发明的实施例 4。人体工程学床垫制作方法，所述床垫包括支撑层 1 和缓释层 2，制作时根据使用者的体重来选择支撑层 1的回弹率、厚度和密度，通过支撑层 1承载使用者的身体，根据使用者的人体曲线落差来选择缓释层 2的回弹率、厚度和密度，通过缓释层 2的变形来包裹使用者的人体曲线。经试验，支撑层 1的选择范围如下，能够达到本发明的效果。 50mm<L 80mm, the rebound rate of the sustained release layer 2 is 17%, the thickness is 90mm, and the density is 57kg/m ³ ; the comfort layer 4 is also formed on the support layer 1 and the sustained release layer 2, and the comfort layer 4 is back. The elastic modulus was 17%, the thickness was 15 Å, and the density was 55 kg/m. Example 4 of the present invention. The ergonomic mattress manufacturing method comprises the support layer 1 and the sustained release layer 2, and the rebound rate, the thickness and the density of the support layer 1 are selected according to the user's weight during manufacture, and the user is carried by the support layer 1 The body selects the rebound rate, thickness and density of the sustained release layer 2 according to the user's body curve drop, and wraps the user's human body curve by the deformation of the sustained release layer 2. Through testing, the selection range of the support layer 1 is as follows, and the effects of the present invention can be attained.

使用者的体重 T 15kg，支撑层 1的回弹率为 43%，厚度为 45mm，密度为 127kg/m³; The weight of the user is T 15kg, the rebound rate of the support layer 1 is 43%, the thickness is 45mm, and the density is 127kg/m ³ ;

15kg < T 40kg，支撑层 1 的回弹率为 41%，厚度为 62匪，密度为 121kg/m³; 15kg < T 40kg, the rebound ratio of the support layer 1 is 41%, the thickness is 62匪, and the density is 121kg/m ³ ;

40kg < T ^ 70kg , 支撑层 1 的回弹率为 38%，厚度为 88匪，密度为 117kg/m³; 40kg < T ^ 70kg, the rebound rate of the support layer 1 is 38%, the thickness is 88匪, and the density is 117kg/m ³ ;

70kg<T^ 100kg , 支撑层 1 的回弹率为 41%，厚度为 122匪，密度为 128kg/m³; 70kg<T^ 100kg, the rebound rate of the support layer 1 is 41%, the thickness is 122匪, and the density is 128kg/m ³ ;

100kg<T 150kg，支撑层 1 的回弹率为 42%，厚度为 153匪，密度为 127kg/m³。 100kg<T 150kg, the rebound ratio of the support layer 1 is 42%, the thickness is 153匪, and the density is 127kg/m ³ .

10111111<使用者的人体曲线落差 L 20mm，缓释层 2的回弹率为 28%，厚度为 28匪，密度为 73kg/m³; 10111111 <The user's human body curve drop L 20mm, the sustained release layer 2 has a rebound rate of 28%, a thickness of 28 匪, and a density of 73 kg/m ³ ;

20mm<L^ 35mm,缓释层 2的回弹率为 24%，厚度为 46mm，密度为 68kg/m³;20mm<L^ 35mm, the rebound rate of the sustained release layer 2 is 24%, the thickness is 46mm, and the density is 68kg/m ³ ;

35mm<L 50mm，缓释层 2的回弹率为 21%，厚度为 66mm，密度为 61kg/m³;35mm<L 50mm, the rebound rate of the sustained release layer 2 is 21%, the thickness is 66mm, and the density is 61kg/m ³ ;

50mm<L^ 80mm,缓释层 2的回弹率为 18%，厚度为 92mm，密度为 56kg/m³; 在支撑层 1和缓释层 2上还制作有舒适层 4，舒适层 4的回弹率为 17%，厚度为 16匪，密度为 53kg/m 50mm<L^ 80mm, the rebound rate of the sustained release layer 2 is 18%, the thickness is 92mm, and the density is 56kg/m ³ ; the comfort layer 4 and the comfort layer 4 are also formed on the support layer 1 and the sustained release layer 2 Rebound rate is 17%, thickness is 16匪, density is 53kg/m

以上所述，仅是本发明的较佳实施例，并非对本发明作任何形式上的限制，任何未脱离本发明技术方案内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明技术方案的范围内。 The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification or equivalent to the above embodiment may be made without departing from the technical scope of the present invention. Variations and modifications are still within the scope of the technical solution of the present invention.

Claims

权利要求书 claims

1、一种人体工程学床垫制作方法，其特征在于：所述床垫包括支撑层（1) 和缓释层（2)，制作时根据使用者的体重来选择支撑层1. An ergonomic mattress manufacturing method, characterized in that: the mattress includes a support layer (1) and a slow-release layer (2), and the support layer is selected according to the user's weight during production.

(1) 的回弹率、厚度和密度，通过支撑层（1) 承载使用者的身体，根据使用者的人体曲线落差来选择缓释层（2) 的回弹率、厚度和密度，通过缓释层（2) 的变形来包裹使用者的人体曲线。 The rebound rate, thickness and density of the release layer (1) are used to support the user's body through the support layer (1). The rebound rate, thickness and density of the slow-release layer (2) are selected according to the user's human body curve. The release layer (2) deforms to wrap the user's body curve.

2、根据权利要求 1所述的人体工程学床垫制作方法，其特征在于：所述支撑层（1) 的选择范围为： 2. The ergonomic mattress manufacturing method according to claim 1, characterized in that: the selection range of the support layer (1) is:

使用者的体重 T 15kg，支撑层（1) 的回弹率为 40-45%，厚度为 30- 50匪，密度为 120-135kg/m³; The user's weight T is 15kg, the rebound rate of the support layer (1) is 40-45%, the thickness is 30-50mm, and the density is 120-135kg/m ³ ;

15kg<T 40kg，支撑层（1)的回弹率为 38-43%，厚度为 50-70mm，密度为 115-125kg/m³ _; 15kg<T 40kg, the rebound rate of the support layer (1) is 38-43%, the thickness is 50-70mm, and the density is 115-125kg/m ³ _;

40kg<T 70kg，支撑层 (1)的回弹率为 35-40，厚度为 80-100，密度为 110-120kg/m³ _; 40kg<T 70kg, the rebound rate of the support layer (1) is 35-40, the thickness is 80-100, and the density is 110-120kg/m ³ _;

70kg<T^ 100kg, 支撑层（1) 的回弹率为 40-45，厚度为 110-130mm, 密度为 120-135kg/m³; 70kg<T^ 100kg, the rebound rate of the support layer (1) is 40-45, the thickness is 110-130mm, and the density is 120-135kg/m ³ ;

100kg <T^ 150kg, 支撑层（1) 的回弹率为 40-45，厚度为 140- 160mm, 密度为 120-135kg/m³。 100kg <T^ 150kg, the rebound rate of the support layer (1) is 40-45, the thickness is 140-160mm, and the density is 120-135kg/m ³ .

3、根据权利要求 2所述的人体工程学床垫制作方法，其特征在于：所述支撑层（1) 的选择范围为： 3. The ergonomic mattress manufacturing method according to claim 2, characterized in that: the selection range of the support layer (1) is:

使用者的体重 T 15kg，支撑层（1) 的回弹率为 41-43%，厚度为 35- 45匪，密度为 125-130kg/m³; The user's weight T is 15kg, the rebound rate of the support layer (1) is 41-43%, the thickness is 35-45mm, and the density is 125-130kg/m ³ ;

15kg<T 40kg，支撑层（1)的回弹率为 40-42%，厚度为 55-65mm，密度为 118-122kg/m³ _; 15kg<T 40kg, the rebound rate of the support layer (1) is 40-42%, the thickness is 55-65mm, and the density is 118-122kg/m ³ _;

40kg<T 70kg，支撑层（1)的回弹率为 37-39%，厚度为 85-95mm，密度为 112-118kg/m³; 40kg<T 70kg, the rebound rate of the support layer (1) is 37-39%, and the thickness is 85-95mm. Density is 112-118kg/m ³ ;

70kg <T^ 100kg, 支撑层（1) 的回弹率为 41-43%，厚度为 115- 125mm, 密度为 125-130kg/m³; 70kg <T^ 100kg, the rebound rate of the support layer (1) is 41-43%, the thickness is 115-125mm, and the density is 125-130kg/m ³ ;

100kg<T^ 150kg, 支撑层（1) 的回弹率为 40-42%，厚度为 145-155, 密度为 125-130kg/m 100kg<T^ 150kg, the rebound rate of the support layer (1) is 40-42%, the thickness is 145-155, and the density is 125-130kg/m

4、根据权利要求 1所述的人体工程学床垫制作方法，其特征在于：所述缓释层（2) 的选择范围为： 4. The ergonomic mattress manufacturing method according to claim 1, characterized in that: the selection range of the slow-release layer (2) is:

10111111<使用者的人体曲线落差 L 20mm，缓释层（2) 的回弹率为 25-30%, 厚度为 25- 30匪，密度为 70- 80kg/m³; 10111111<The user's human body curve drop L is 20mm, the rebound rate of the slow-release layer (2) is 25-30%, the thickness is 25-30mm, and the density is 70-80kg/m ³ ;

20mm<L^35mm,缓释层（2)的回弹率为 22_25%，厚度为 40-50mm，密度为 65-70kg/m³ _; 20mm<L^35mm, the rebound rate of the slow-release layer (2) is 22-25%, the thickness is 40-50mm, and the density is 65-70kg/m ³ _;

35mm<L 50mm，缓释层（2)的回弹率为 18_23%，厚度为 60-75mm，密度为 60-65kg/m³ _; 35mm<L 50mm, the rebound rate of the slow-release layer (2) is 18-23%, the thickness is 60-75mm, and the density is 60-65kg/m ³ _;

5(km<L 80匪，缓释层（2) 的回弹率为 15-20%, 厚度为 80- 100mm, 密度为 55-60kg/m³; 5(km<L 80NM, the rebound rate of the slow-release layer (2) is 15-20%, the thickness is 80-100mm, and the density is 55-60kg/m ³ ;

5、根据权利要求 4所述的人体工程学床垫制作方法，其特征在于：所述缓释层（2) 的选择范围为： 5. The ergonomic mattress manufacturing method according to claim 4, characterized in that: the selection range of the slow-release layer (2) is:

10111111<使用者的人体曲线落差 L 20mm，缓释层（2) 的回弹率为 26-28%, 厚度为 26- 28匪，密度为 72- 78kg/m³; 10111111<The user's human body curve drop L is 20mm, the rebound rate of the slow-release layer (2) is 26-28%, the thickness is 26-28mm, and the density is 72-78kg/m ³ ;

20mm<L^35mm,缓释层（2)的回弹率为 23_24%，厚度为 43-48mm，密度为 66-68kg/m³ _; 20mm<L^35mm, the rebound rate of the slow-release layer (2) is 23-24%, the thickness is 43-48mm, and the density is 66-68kg/m ³ _;

35匪 <L 50匪，缓释层 (2)的回弹率为 19-21%, 厚度为 65-70，密度为 61-63kg/m³ _; 35NM<L 50NM, the rebound rate of the slow-release layer (2) is 19-21%, the thickness is 65-70, and the density is 61-63kg/m ³ _;

50mm<L 80mm，缓释层（2)的回弹率为 17_19%，厚度为 85-95mm，密度为 56-58kg/m³ _; 50mm<L 80mm, the rebound rate of the slow-release layer (2) is 17-19%, the thickness is 85-95mm, and the density is 56-58kg/m ³ _;

6、根据权利要求 1所述的人体工程学床垫制作方法，其特征在于：所述支撑层（1 ) 和缓释层（2 ) 上设有舒适层（4)，舒适层（4 ) 的回弹率为 15-20%，厚度为 10-20mm，密度为 50-60kg/m³ 6. The ergonomic mattress manufacturing method according to claim 1, characterized in that In: The support layer (1) and the slow-release layer (2) are provided with a comfort layer (4). The comfort layer (4) has a rebound rate of 15-20%, a thickness of 10-20mm, and a density of 50-50%. 60kg/ ^m3

7、根据权利要求 6所述的人体工程学床垫制作方法，其特征在于：所述舒适层（4) 的回弹率为 16-18%，厚度为 12-18 密度为 52- 58kg/m³ 7. The ergonomic mattress manufacturing method according to claim 6, characterized in that: the comfort layer (4) has a rebound rate of 16-18%, a thickness of 12-18%, and a density of 52-58kg/m. ³