CN211022015U - Pillow with negative Poisson ratio effect - Google Patents
Pillow with negative Poisson ratio effect Download PDFInfo
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- CN211022015U CN211022015U CN201922206298.2U CN201922206298U CN211022015U CN 211022015 U CN211022015 U CN 211022015U CN 201922206298 U CN201922206298 U CN 201922206298U CN 211022015 U CN211022015 U CN 211022015U
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- 230000000694 effects Effects 0.000 title claims abstract description 20
- 239000012792 core layer Substances 0.000 claims abstract description 25
- 239000010410 layer Substances 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 14
- 239000004753 textile Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 10
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 238000007373 indentation Methods 0.000 abstract description 4
- 230000035699 permeability Effects 0.000 abstract description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 4
- 210000003746 feather Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011496 polyurethane foam Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000238876 Acari Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
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Abstract
The utility model discloses a pillow with negative Poisson ratio effect, which comprises a pillow inner core layer and an outer wrapping layer; the cross section of the pillow inner core layer is designed to be a negative Poisson ratio cell structure, and a micro-depression is arranged in the middle of the upper surface of the outer wrapping layer. The utility model discloses because the good indentation resistance of negative poisson ratio structure, energy absorption nature, resilience toughness, anti concavity and curved surface syntropy can make the lighter and more comfortable of pillow, can effectual support people's head and neck simultaneously, accord with the ergonomic requirement and improved the durability of pillow. In addition, the special hole structure design of the inner layer ensures the whole air permeability and comfort of the pillow. The micro-concave design in the middle of the pillow core enables the surface of the pillow to be more easily attached to the cervical vertebra when a person lies down, and avoids the damage to the cervical vertebra caused by incorrect sleeping posture for a long time. Meanwhile, the density of the inner-layer negative Poisson ratio cell element is adjustable, and the individual requirements of consumers can be met.
Description
Technical Field
The utility model relates to a design the pillow that has negative poisson's ratio effect through utilizing negative poisson ratio structure, belong to new material and new construction field.
Background
The pillow, as a common daily product, has become an indispensable part of people's life, which presents a great challenge to the aspects of pillow quality and functionality. Most of the existing common pillows do not meet the design requirements of human engineering in terms of style, and have the problems of easy deformation, low durability, easy propagation with bacteria and mites, easy sticking of sweat stains and the like after long-term use, and the like, so that the requirements of people cannot be fully met.
In recent years, as negative poisson ratio materials and structures have more excellent characteristics compared with traditional positive poisson ratio materials, the discovery and the use of the negative poisson ratio materials are more hot, and the development and the application of the negative poisson ratio structure become more research hotspots at present. The negative poisson's ratio is simply a phenomenon of swelling (shrinking) of a material when the material is subjected to axial tension (compression).
The negative Poisson ratio pillow core is designed by applying a negative Poisson ratio structure to a practical idea, and according to the characteristics of good indentation resistance, energy absorption, resilience toughness, dent resistance and capability of generating equidirectional curvature of the negative Poisson ratio structure, the negative Poisson ratio pillow core is provided. The negative poisson ratio pillow inner can better wrap the cervical vertebra of a person to support when the person lies down, and meanwhile, the pillow inner is extremely difficult to deform in macroscopic form when the person repeatedly uses the pillow inner for a long time. Compared with the traditional pillow, the negative poisson ratio pillow is made of green and economic materials, accords with human engineering, has better durability and practicability, can meet the requirements of people, is beneficial to the health of people, and has very important scientific significance and certain application value and commercial value.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the not enough of prior art and product, combine together outstanding traditional pad material and burden poisson ratio structure, designed the burden poisson ratio pillow that has the practicality, the pillow of design has more excellent durability, travelling comfort and correction nature than traditional pillow.
The utility model adopts the technical proposal that: a pillow with negative Poisson ratio effect comprises a pillow core layer and an outer wrapping layer; the cross section of the core layer of the pillow inner is designed into a negative Poisson ratio cell structure, and the middle part of the upper surface of the external wrapping layer is provided with a micro-depression;
length L of the pillow1The relation with the width D of the pillow satisfies that 1.75 is more than L1/D＞1.5；
Height h of the pillow1Length L corresponding to pillow1Satisfies the following relationship: 0.375 > h1/L1＞0.143；
Width L of the dimple2Length L corresponding to pillow1Satisfy the relationship of 0.15 > L2/L1＞0.05；
Depth h of the micro-depression2And width L of the micro-recess2Satisfies the following relationship: 0.429 > h2/L2＞0.083；
Depth h of the micro-depression2Height h of pillow1Satisfies the following relationship: 0.15 > h2/h1＞0.03；
The thickness t of the core layer of the pillow core1Thickness t of outer wrapping layer2Should satisfy the following relationship: 13 > t1/t2＞4。
Preferably, the cross-sectional structure of the core layer of the pillow core includes: the structure comprises a concave structure, a rotary polygonal structure, a chiral structure, a perforated plate structure and a negative Poisson ratio textile material structure.
The method for designing the pillow with the negative Poisson ratio effect comprises the following steps:
1) determining the length L of the pillow according to the consumer's needs or uses1Width D of pillow and height h of pillow1Width L of the dimple in the middle of the upper surface of the outer wrap2Depth h of micro-recess2And thickness t of the outer coating with matching design2；
2) Selecting conventional soft polyurethane foam as a base material, and cutting the polyurethane foam by using a die cutting technology to prepare a pillow inner core layer with a negative Poisson ratio effect, wherein the steps are as follows:
(1) designing a first die with a certain radian, wherein the cross section of the first die is of an inwards concave hexagonal structure with a negative Poisson's ratio effect, and the first die is arranged according to the thickness t of a given core layer1Designing the number of cells of the concave hexagonal structure in the thickness direction;
(2) manufacturing a second mold according to the side size of the core layer of the set pillow core;
(3) longitudinally cutting the middle parts of the two pairs of moulds I to obtain a core layer of the pillow inner;
3) selecting conventional down feather fiber as base material, and making into down feather with thickness t2The outer wrapping layer of (1);
4) and (4) wrapping the core layer of the pillow inner by the outer wrapping layer to prepare the pillow with the negative Poisson ratio effect.
The utility model discloses the key of technique lies in pillow shape design and pillow negative poisson ratio micro-structural design, because negative poisson is than the good anti indentation nature of structure, energy absorption nature, resilience toughness, anti sunken and its characteristic that has the ability that can produce syntropy camber, makes the more slim and graceful comfortable of pillow, simultaneously can effectual bearing people's head and neck, accords with the ergonomic requirement and has improved the durability of pillow.
Has the advantages that: the utility model discloses because the good indentation resistance of negative poisson ratio structure, energy absorption, resilience toughness, anti sunken and its have the characteristic that can produce the ability of syntropy camber, make the lighter and more comfortable of pillow, simultaneously can effectual support people's head and neck, accord with the ergonomic requirement and improved the durability of pillow. In addition, the hole structure of the inner layer ensures the air permeability and the comfort of the whole pillow. The micro-concave design in the middle of the pillow core enables the surface of the pillow to be more easily attached to the cervical vertebra when a person lies down, and avoids the damage to the cervical vertebra caused by incorrect sleeping posture for a long time.
Drawings
FIG. 1 is a schematic view of a pillow having a negative Poisson ratio effect;
FIG. 2 is a top view of a pillow having a negative Poisson ratio effect;
FIG. 3 is a side view of a pillow having a negative Poisson ratio effect;
FIG. 4 is a cross-sectional view of a pillow having a negative Poisson ratio effect;
FIG. 5 is a schematic diagram showing the cross-sectional structure of the core layer of the pillow core being a concave hexagon;
FIG. 6 is a schematic view of a perforated plate hole configuration;
FIG. 7 is a schematic view of a rotating polygon structure.
Detailed Description
The invention will be further described with reference to the following detailed description and the accompanying drawings:
as shown in fig. 1-5, a pillow with negative poisson's ratio effect comprises a pillow core layer 1 and an outer wrapping layer 2; the cross section of the pillow inner core layer 1 is of an inwards concave hexagonal structure, and the middle part of the upper surface of the outer wrapping layer 2 is provided with a micro-depression part;
length L of the pillow1The relation with the width D of the pillow satisfies that 1.75 is more than L1/D＞1.5；
Height h of the pillow1Length L corresponding to pillow1Satisfies the following relationship: 0.375 > h1/L1＞0.143；
Width L of the dimple2Length L corresponding to pillow1Satisfy the relationship of 0.15 > L2/L1＞0.05；
Depth h of the micro-depression2And width L of the micro-recess2Satisfies the following relationship: 0.429 > h2/L2＞0.083；
Depth h of the micro-depression2Height h of pillow1Satisfies the following relationship: 0.15 > h2/h1＞0.03；
The thickness t of the pillow inner core layer 11Thickness t of outer coating 22Should satisfy the following relationship: 13 > t1/t2＞4。
The cross-sectional structure of the core layer of the pillow core further comprises: a rotating polygonal structure (see fig. 7), a chiral structure, a perforated plate structure (see fig. 6), and a negative poisson's ratio textile structure.
The method for designing the pillow with the negative Poisson ratio effect comprises the following steps:
1) determining the length L of the pillow according to the consumer's needs or uses1Width D of pillow and height h of pillow1Width L of the dimple in the middle of the upper surface of the outer wrap2Depth h of micro-recess2And thickness t of the outer coating with matching design2；
2) Selecting conventional soft polyurethane foam as a base material, and cutting the polyurethane foam by using a die cutting technology to prepare a pillow inner core layer with a negative Poisson ratio effect, wherein the steps are as follows:
(1) designing a first die with a certain radian, wherein the cross section of the first die is of an inwards concave hexagonal structure with a negative Poisson's ratio effect, and the first die is arranged according to the thickness t of a given core layer1Designing the number of cells of the concave hexagonal structure in the thickness direction;
(2) manufacturing a second mold according to the side size of the core layer of the set pillow core;
(3) longitudinally cutting the middle parts of the two pairs of moulds I to obtain a core layer of the pillow inner;
3) selecting conventional down feather fiber as base material, and making into down feather with thickness t2The outer wrapping layer of (1);
4) and (4) wrapping the core layer of the pillow inner by the outer wrapping layer to prepare the pillow with the negative Poisson ratio effect.
It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention. Components not explicitly described in this example can be implemented using existing techniques.
Claims (2)
1. A pillow having a negative Poisson's ratio effect, characterized in that: comprises a pillow core layer and an external wrapping layer; the cross section of the core layer of the pillow inner is designed into a negative Poisson ratio cell structure, and the middle part of the upper surface of the external wrapping layer is provided with a micro-depression;
length L of the pillow1The relation with the width D of the pillow satisfies that 1.75 is more than L1/D＞1.5；
Height h of the pillow1Length L corresponding to pillow1Satisfies the following relationship: 0.375 > h1/L1＞0.143；
Width L of the dimple2Length L corresponding to pillow1Satisfy the relationship of 0.15 > L2/L1＞0.05；
Depth h of the micro-depression2And width L of the micro-recess2Satisfies the following relationship: 0.429 > h2/L2＞0.083；
Depth h of the micro-depression2Height h of pillow1Satisfies the following relationship: 0.15 > h2/h1＞0.03；
The thickness t of the core layer of the pillow core1Thickness t of outer wrapping layer2Should satisfy the following relationship: 13 > t1/t2＞4。
2. A pillow having a negative poisson's ratio effect as claimed in claim 1, wherein: the cross-sectional structure of the core layer of the pillow core comprises: the structure comprises a concave structure, a rotary polygonal structure, a chiral structure, a perforated plate structure and a negative Poisson ratio textile material structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922206298.2U CN211022015U (en) | 2019-12-10 | 2019-12-10 | Pillow with negative Poisson ratio effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922206298.2U CN211022015U (en) | 2019-12-10 | 2019-12-10 | Pillow with negative Poisson ratio effect |
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| Publication Number | Publication Date |
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| CN211022015U true CN211022015U (en) | 2020-07-17 |
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| CN201922206298.2U Active CN211022015U (en) | 2019-12-10 | 2019-12-10 | Pillow with negative Poisson ratio effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110754887A (en) * | 2019-12-10 | 2020-02-07 | 南京工业大学 | Pillow with negative Poisson ratio effect and design method thereof |
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- 2019-12-10 CN CN201922206298.2U patent/CN211022015U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110754887A (en) * | 2019-12-10 | 2020-02-07 | 南京工业大学 | Pillow with negative Poisson ratio effect and design method thereof |
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Assignee: Nanjing amoeba Engineering Structure Optimization Research Institute Co.,Ltd. Assignor: Nanjing Tech University Contract record no.: X2023980053246 Denomination of utility model: A pillow with negative Poisson's ratio effect Granted publication date: 20200717 License type: Common License Record date: 20231221 |