Pillow core carrying novel pillow surface partition structure generated based on Thiessen polygon

Abstract

The utility model discloses a pillow core carrying a novel pillow surface partition structure generated based on Thiessen polygons. The pillow inner comprises a pillow inner body, and a pillow face of the pillow inner body comprises a high neck pillow area, a low neck pillow area, a head pillow area and a wrapping enhancing area. The core technology is characterized in that convex pillow surface partition structures which are different in size and are generated based on Thiessen polygons are distributed on the surface of the pillow inner main body. The distribution and the size of the partition structures are determined according to the deformation condition of the pillow inner when a person lies flat, the areas with large deformation correspond to the protrusions with large areas, and the areas with small deformation correspond to the protrusions with small areas. The structure can more scientifically disperse the pressure of the head and the neck, excellent wrapping feeling and supporting performance are provided, and meanwhile the air permeability is enhanced through the groove structures between the protrusions.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the pillow core structure optimization field, concretely relates to a pillow core which is equipped with a novel pillow surface partition structure based on a thomsen polygon generation. BACKGROUND

[0002] The pillow is a kind of main sleep furniture, and it is responsible for supporting the head and neck of the person when sleeping, when the head and neck of the person contact and press down, the pillow will be concave and support and wrap the head and neck to some extent.When sleeping, due to the different pressure of the head and neck on the pillow surface, the concave deformation of the pillow surface and the head contact position is also different.The existing pillow core made of foamed cotton, latex and other materials does not provide corresponding design for these conditions, so that the sleeper cannot further provide better wrapping feeling when using the pillow.The pressure of the head on the pillow surface cannot be well dispersed, which may cause the blood circulation to be poor in the local position after maintaining the same posture for a long time.The foamed sponge, latex and other types of pillows will form a non-breathable film on the surface due to the limitation of the demolding process, which will make the pillow poor in breathability, thereby affecting the pillow feeling and comfort.

[0003] As described above, the utility model aims to develop a pillow core with a novel pillow surface partition structure to solve the above problems and provide better experience for users. SUMMARY

[0004] To solve the problems of poor wrapping feeling, unable to disperse the pressure of the head and neck area and poor breathability of the existing foamed cotton or latex pillow core, the utility model provides a pillow core equipped with a novel pillow surface partition structure based on a thomsen polygon generation, which optimizes the design of the pillow surface of the foamed cotton or latex pillow core using the construction principle of thomsen polygon, can provide better wrapping feeling for users, effectively disperse the pressure of the head and neck, prevent poor blood circulation in the local position, and increase the breathability of the pillow core by forming surface grooves.

[0005] To achieve the above purpose, the utility model creatively provides a pillow core equipped with a novel pillow surface partition structure based on a thomsen polygon generation, mainly including a pillow core body and a pillow surface partition structure.

[0006] The pillow core body includes four partition areas of high neck pillow area, low neck pillow area, head pillow area and four corner wrapping enhancement area, and the pillow surface partition structure based on a thomsen polygon generation with different sizes is distributed on the surface of the pillow core body.The high neck pillow area and the low neck pillow area are located at the four edges of the pillow core, gradually rising from the concave part of the high neck pillow area and the low neck pillow area to both sides, connecting to the wrapping enhancement area at the four corners of the pillow core, and connecting to the middle head pillow area at the center of the pillow core.The wrapping enhancement area is a high place of the four corners of the pillow core.

[0007] The convex group generated on the surface of the pillow based on the Thiessen polygon. The distribution and size of the convex are controlled by the deformation of the pillow caused by the person lying on the pillow and the "Thiessen polygon control point density-deformation function". Specifically, when a person lies on the pillow, the pillow produces a large area of convex on the pillow surface in the region where the pillow produces a large deformation under pressure; the pillow produces a small area of convex on the pillow surface in the region where the pillow produces a small deformation under pressure. Because the deformation of different regions of the pillow is different, the distribution of the Thiessen polygon convex on the pillow surface generated by the function calculation presents the characteristics of different sizes, and this distribution structure with different sizes can adapt to the pressure distribution of the head and neck. The convex of different sizes has the characteristics of uniform change on the entire pillow surface due to the geometric properties of the Thiessen polygon.

[0008] The design principle of the pillow surface partition structure is as follows: first, the deformation of the pillow caused by an adult lying in a prone position on the pillow in four directions is calculated through experiments and simulation, and the deformation data and deformation distribution of the front surface of the pillow are obtained. In order to process the deformation data of the pillow, the present application proposes a "Thiessen polygon control point density-deformation function", and the function formula is as follows:

[0009]

[0010] Wherein:

[0011] y is the minimum distance of the pillow surface control point calculation;

[0012] x is the deformation size of the pillow;

[0013] k is the change control coefficient;

[0014] B is the specified maximum partition size constant of the pillow surface, and the value range is preferably 30-60mm;

[0015] C is the specified minimum partition size constant of the pillow surface, and the value is generally not less than 10mm;

[0016] t is the deformation range coefficient, which is defined as when x=t, y approaches a constant C.

[0017] ​The control point density parameters of the tessellation polygon partition of the pillow core main body can be obtained by using the function to process the pillow surface deformation data obtained by the simulation experiment. Then, the control point array of the tessellation polygon is generated according to the deformation distribution and the control point density parameters, the tessellation polygon basic grid system is generated according to the control point array, and the contour pattern of the pillow surface partition is generated on the basis of the tessellation polygon basic grid system according to the groove width, and finally, the convex is constructed according to the contour pattern, so that the pillow surface partition structure is generated. The design of the structure makes the size change and distribution of the pillow surface partition most consistent with the deformation condition when the headrest is on the pillow core.

[0018] Compared with the prior art, the pillow core carrying the novel pillow surface partition structure based on the tessellation polygon has the following advantages and technical effects: the change and distribution of the surface convex of the pillow core carrying the novel pillow surface partition structure based on the tessellation polygon are more consistent with the requirements of the compression deformation of the pillow surface when a person rests on the pillow, and the sense of wrapping and comfort can be further improved. Meanwhile, the convexes distributed on the pillow surface can effectively disperse the pressure of the contact part when the head and neck rest on the pillow, improve the sense of pillow, and prevent the blood circulation of the local area of the head and neck from being poor when the user fixes a sleeping posture. The groove gap formed between the convexes and extending to the periphery and the bottom of the pillow can increase the circulation of air at the contact position during use, and improve the air permeability of the pillow. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the present application illustrated in the drawings and their descriptions are used to explain the present application and are not intended to limit the present application. In the drawings:

[0020] Figure 1 A three-dimensional schematic view of the pillow core carrying the novel pillow surface partition structure based on the tessellation polygon according to the present application;

[0021] Figure 2 A front side schematic view of the pillow core carrying the novel pillow surface partition structure based on the tessellation polygon according to the present application;

[0022] Figure 3 A right side schematic view of the pillow core carrying the novel pillow surface partition structure based on the tessellation polygon according to the present application;

[0023] Figure 4 A top surface schematic view of the pillow core carrying the novel pillow surface partition structure based on the tessellation polygon according to the present application;

[0024] Figure 5 A pillow core main body contour schematic view of the pillow core according to the first embodiment of the present application;

[0025] Figure 6The deformation condition and the Voronoi polygon control point distribution schematic view of the pillow core of the embodiment 1 of the utility model;

[0026] Figure 7 The Voronoi polygon basic grid system and the convex contour schematic view of the pillow core of the embodiment 1 of the utility model;

[0027] Figure 8 The pillow core main body contour schematic view of the pillow core of the embodiment 2 of the utility model;

[0028] Figure 9 The deformation condition and the Voronoi polygon control point distribution schematic view of the pillow core of the embodiment 2 of the utility model;

[0029] Figure 10 The Voronoi polygon basic grid system and the convex contour schematic view of the pillow core of the embodiment 2 of the utility model;

[0030] Figure 11 The pillow core three-dimensional schematic view of the pillow core of the embodiment 2 of the utility model after the pillow surface partition structure design is completed.

[0031] Label explanation: 1, pillow core main body; 101, high neck pillow area; 102, low neck pillow area; 103, headrest area; 104, wrapping enhancement area; 2, pillow surface partition structure; 201, strip convex; 202, groove structure; 3, embodiment 1 pillow core deformation distribution; 4, embodiment 1 control point array; 5, embodiment 1 Voronoi polygon basic grid system; 6, embodiment 1 pillow surface partition contour pattern; 7, embodiment 2 pillow core main body; 8, embodiment 2 pillow core deformation distribution; 9, embodiment 2 control point array; 10, embodiment 2 Voronoi polygon basic grid system; 11, embodiment 2 pillow surface partition contour pattern. DETAILED DESCRIPTION

[0032] The utility model will be explained in detail below in combination with the drawings and specific embodiment.

[0033] Embodiment 1:

[0034] Please refer to Figure 4 , Figure 5 ​The pillow core body 1 used in the embodiment is a 350mmx300mmx110mm special-shaped pillow core, which is used on four sides. The pillow surface of the pillow core is divided into four functional areas, i.e., a high-neck pillow area 101, a low-neck pillow area 102, a headrest area 103, and a wrapping enhancement area 104. The high-neck pillow area 101 and the low-neck pillow area 102 are respectively located at the four edge positions of the pillow core body 1. The lower concave point of the high-neck pillow area 101 is about 25-30mm higher than that of the low-neck pillow area 102. From the concave positions of the high-neck pillow area 101 and the low-neck pillow area 102, the wrapping enhancement area 104 gradually rises to the four corners of the pillow core, and then transitions to the headrest area 103 in the center of the pillow core. The wrapping enhancement area 104 is a thicker position at the four corners of the pillow core, and the highest position is 110mm away from the vertical distance of the bottom of the pillow core body 1.

[0035] The pillow surface partition structure 2 on the pillow core body 1 described in the embodiment is designed according to the compression deformation of the average-sized adult head and neck model on the pillow core body in a lying posture. The deformation law is that the central and four-edge areas in contact with the back of the brain and the neck have the most significant deformation, the transition area corresponding to the neck anti-bow position has the second significant deformation, and the four corners of the pillow core are stretched and have the smallest deformation. The deformation distribution 3 is shown in Figure 6

[0036] To convert the above deformation law into a specific pillow surface partition structure, the utility model uses the "Thiessen polygon control point density-deformation function" for control. In the embodiment, the maximum partition size constant B of the pillow surface is set to 50mm, the minimum partition size constant C is set to 15mm, and the deformation range coefficient t is set to 25. The control point array 4 determined according to these parameters is shown in Figure 6 , and the distribution density is proportional to the deformation size.

[0037] Based on the Thiessen polygon basic grid system 5 generated by the above control point array 4, and according to the 5mm groove width requirement, the convex contour pattern 6 of the pillow surface partition is finally formed (as shown in Figure 7 ).

[0038] The finally formed pillow surface partition structure 2 is a convex group, the convex height of which is 6mm, and the side wall of the groove structure 202 has a slope of 10-20°. At the edge of the pillow core, the partition convex extends to the bottom surface of the pillow core, forming a surrounding strip-shaped convex 201. The structure is shown in Figure 1 .

[0039] Embodiment 2

[0040] The embodiment verifies the application of the pillow surface partition structure described in the utility model on different specifications of pillow cores.

[0041] ​The pillow surface of the pillow core body 7 is divided into three functional areas, namely, a neck pillow area, a head pillow area and a wrapping enhancement area. The vertical distance from the lowest point of the head pillow area to the bottom of the pillow core body is 50mm. The neck pillow area is located at the protruding position of one side of the pillow core body and is about 15mm higher than the head pillow area. The wrapping enhancement area is located at the protruding position of both sides of the pillow core body and the vertical distance from the highest point of the wrapping enhancement area to the bottom of the pillow core body is 80mm.

[0042] Similar to the embodiment 1, the design basis of the partition structure of the pillow surface in this embodiment is the deformation data of the average size child head and neck model on the pillow core body. The deformation distribution 8 is shown in the figure. Figure 9

[0043] The deformation data is also controlled by the "Thiessen polygon control point density-deformation function". Considering that the user is a child, in order to make the partition more dense, the maximum partition size constant B of the pillow surface is set to 35mm, the minimum partition size constant C is set to 10mm, and the deformation range coefficient t is set to 18. The control point array 9 determined thereby is shown in the figure. Figure 9

[0044] Based on the control point array 9, the Thiessen polygon basic grid system 10 is generated, and according to the requirement of the groove width of 4mm, the convex contour pattern 11 of the pillow surface partition is formed, as shown in the figure. Figure 10

[0045] The finally formed pillow surface partition structure is a convex group, the convex height of which is 6mm, the side wall has an inclination of 10-20°, and the partition convex at the edge of the pillow core extends to the bottom surface of the pillow core, forming a strip-shaped convex. The structure is shown in the figure. Figure 11

[0046] The pillow core with the new pillow surface partition structure based on the Thiessen polygon designed according to the embodiments 1 and 2 will meet the deformation condition of the pillow core to the greatest extent when the human head is in a lying posture and is placed on the pillow core body. The pillow core with this structure can provide a better wrapping experience after being concave deformed, and the pillow surface partition can disperse the head and neck pressure, and the groove structure can increase the overall air permeability.

[0047] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Any replacement and improvement of the technical solution of the present application by any person skilled in the art under the technical inspiration of the present application shall be included in the protection scope of the present application.​​​​

Claims

1. A pillow core with a new type of pillow surface partition structure based on Thiessen polygon generation, comprising a pillow core main body (1), characterized in that: The pillow surface of the pillow core body (1) includes four functional areas of high neck pillow area (101), low neck pillow area (102), headrest area (103) and wrapping enhancement area (104). The pillow core body (1) is distributed with convex structures (2) of different sizes based on the Voronoi polygon.

2. A pillow according to claim 1, characterised in that: The high neck pillow area (101) and the low neck pillow area (102) of the pillow core body (1) are respectively located at the four edge positions of the pillow core body (1), wherein the recessed positions of the high neck pillow area (101) and the low neck pillow area (102) gradually rise to the wrapping enhancement area (104) at the four corners of the pillow core and to the headrest area (103) at the center of the pillow core.

3. The pillow according to claim 1, wherein: The wrapping enhancement area (104) is located at the thick position of the four corners of the pillow core.

4. The pillow according to claim 1, wherein: The distribution and size of the tessellation polygon protrusions of the pillow surface partition structure (2) are controlled by the deformation of the pillow core caused by a person lying on the pillow core in a lying position and a "tessellation control point density-pillow surface deformation function", which converts the deformation data of the pillow core into the density data of the tessellation control points, and the specific formula is as follows: , , Wherein: y is the calculated minimum distance of the pillow surface control point; x is the deformation size of the pillow core; k is the change control coefficient; B is the specified maximum partition size constant of the pillow surface, and the value range is 30-60mm; C is the specified minimum partition size constant of the pillow surface, and the value is not less than 10mm; t is the deformation range coefficient, which is defined as when x=t, y tends to be a constant C.

5. The pillow of claim 1, wherein: The pillow surface partition structure (2) extends from the upper surface to the bottom surface to form a strip-shaped convex structure (201) around the four edges of the pillow.

6. The pillow of claim 1, wherein: The surface convex structure of the pillow surface partition structure (2) forms a groove structure (202) distributed on the pillow surface, the depth of the groove structure (202) is 6mm, and the side wall of the groove structure (202) has a slope of 10-20°.

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