Down quilt

By using obtuse-angled N-sided filling units and pleated structures in down comforters, the problems of down aggregation and insufficient fit are solved, resulting in better warmth retention and user experience.

CN223640477UActive Publication Date: 2025-12-09LUOLAI LIFESTYLE TECH CO LTD +1
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Patent Information

Application Number
CN202520442527.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2025-12-09
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

After long-term use, down in existing down comforters with right-angle or acute-angle quilting can easily clump together, forming localized voids or piles, affecting the user experience and warmth retention. Furthermore, the quilting method makes it difficult to create three-dimensional support, resulting in insufficient fit between the comforter and the body.

Method used

It employs several continuously arranged N-sided filling units, with all interior angles of the N-sided units being obtuse angles. These units are arranged along the length and width of the down comforter to form a central area. The pleats increase the space, allowing still air to be contained, thus improving the warmth retention. Furthermore, the spatial differences between different areas regulate heat exchange and improve the fit.

Benefits of technology

It enhances the three-dimensionality and visual fluffiness of down comforters, reduces gaps during human movement, strengthens the fit between the comforter and the body, improves warmth and user experience, regulates bed temperature, and enhances comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a down quilt which comprises a plurality of filling units which are continuously arranged, each filling unit is formed by continuously arranging a plurality of N-sided rectangles in the length direction and the width direction of the down quilt, all the N-sided rectangles located in the same filling unit define a central area, and all inner angles of the N-sided rectangles are obtuse angles. All the inner angles of the N-polygon are arranged to be obtuse angles, so that the down and other fillers can fully exert tension and are fully fluffy, still air is saturated, the warm keeping effect is improved, and the technical problems that after long-term use, the down is gathered towards a low-resistance area, and local cavities or accumulation are formed are solved; the three-dimensional sense and the overall visual fluffy sense are enhanced through the arrangement of the filling units and the central area, three-dimensional support is formed, the gap between the quilt body and the body is reduced when the human body moves, the fitting degree is improved, and the warm keeping effect is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of home textile technology, specifically relating to a down comforter. Background Technology

[0002] Down is an animal protein fiber, and its warmth retention is superior to plant fibers such as cotton. Furthermore, the down's spherical fibers are densely covered with millions of tiny triangular pores, which expand and contract with temperature changes, creating a temperature-regulating function. It absorbs heat dissipated by the body and insulates against the intrusion of cold air. Down comforters are comforters filled primarily with duck down, goose down, or other down feathers. They offer advantages such as strong warmth retention, lightweight softness, breathability and dryness, good temperature regulation, strong moisture absorption and wicking, no pressure, good fit, good resilience, no clumping, and long service life.

[0003] Generally speaking, a down comforter includes a duvet cover and the filling inside the duvet cover. In related technologies, down comforters commonly use rectangular or diamond-shaped quilting partitions. However, down comforters using rectangular or diamond-shaped quilting partitions have the following defects: (1) Down displacement: When down is quilted with right angles or acute angles for a long time, it will gather in the low resistance area after long-term use, forming local voids or accumulations, which will affect the user's experience; (2) Insufficient fit: The existing quilting method is difficult to form three-dimensional support. When the human body moves, the gap between the comforter and the body increases, resulting in insufficient fit between the comforter and the body, which will affect the warmth retention effect. Utility Model Content

[0004] In view of this, the present invention provides a down comforter to solve the above-mentioned technical problems, such as the down accumulating in low-resistance areas after long-term use due to right-angle or acute-angle quilting, forming local voids or accumulations, which affects the user's experience; and the existing quilting method is difficult to form three-dimensional support, which increases the gap between the comforter and the body when the human body moves, resulting in insufficient fit between the comforter and the body and affecting the warmth retention effect.

[0005] To achieve the above solution, the technical solution of this utility model is as follows:

[0006] A down comforter includes a plurality of continuously arranged filling units, each filling unit being formed by a plurality of N-sided polygons continuously arranged along the length and width directions of the down comforter, wherein all the N-sided polygons located within the same filling unit enclose a central region, and all interior angles of the N-sided polygons are obtuse angles.

[0007] The principle of this down comforter is as follows: By setting all interior angles of the N-sided polygon to be obtuse angles, the down and other filling materials can fully exert their tension and become fluffy through the obtuse angles of the N-sided polygon, saturating the still air and improving the warmth retention. At the same time, the obtuse angles of the N-sided polygon prevent the down from gathering in low-resistance areas after long-term use, thus avoiding technical problems such as local voids or accumulation. The comforter is constructed using several continuously arranged filling units, each consisting of several N-sided polygons continuously arranged along the length and width of the comforter, located within the same filling unit. The N-sided shapes enclose the central area, enhancing the three-dimensionality and overall visual fluffiness of the down comforter. This provides three-dimensional support, reduces the gap between the comforter and the body during movement, improves the fit, and further enhances warmth. Furthermore, the difference in size between the N-sided shapes and the central area results in different amounts of still air, leading to differences in warmth. When the bed temperature is too high, this difference in warmth allows for heat exchange, regulating the bed temperature and improving the user experience.

[0008] Optionally, the sides of the N-gon are formed by pleats.

[0009] Specifically, this invention sets the sides of the N-sided polygon to be formed by pleats, which can increase the space of the N-sided polygon, accommodate more still air, and further improve the heat preservation effect.

[0010] Optionally, the width of the pleats is 0.5-5cm.

[0011] Optionally, the side length of the N-sided polygon is 5-15cm.

[0012] Optionally, the filling height of the infill material inside the N-sided polygon is 5-10 cm.

[0013] Optionally, the filling height of the filler in the central area is less than 4 cm.

[0014] Optionally, the filling material is duck down, goose down, or a mixture of duck down and goose down, or a mixture of at least one of duck down and goose down with polyester fiber.

[0015] Optionally, the side length of the N-sided polygon located on the left and right sides of the down comforter is greater than the side length of the N-sided polygon located in the middle of the down comforter.

[0016] Specifically, this invention increases the density of the N-sided polygons in the middle by setting the side lengths of the N-sided polygons on the left and right sides of the down comforter to be smaller than the side lengths of the N-sided polygons in the middle of the down comforter. This improves the warmth of the middle section, avoids the technical problem of poor warmth in the middle caused by gaps when used by two people, and enhances the user experience.

[0017] Optionally, the side length of the N-sided shape located at the head of the down comforter is smaller than the side length of the N-sided shape located in the middle of the down comforter.

[0018] Specifically, this invention increases the density of the N-sided shape at the head of the down comforter by making the side length of the N-sided shape at the head of the comforter smaller than the side length of the N-sided shape at the middle of the down comforter, thereby improving the warmth of the comforter head and enhancing the user experience when used by two people.

[0019] Optionally, the side length of the N-sided shape located at the tail of the down comforter is smaller than the side length of the N-sided shape located in the middle of the down comforter.

[0020] Specifically, this invention increases the density of the N-sided shape at the end of the down comforter by making the side length of the N-sided shape at the end of the comforter smaller than the side length of the N-sided shape at the middle of the down comforter, thereby improving the warmth of the comforter head and enhancing the user experience when used by two people. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the down comforter in Example 1;

[0022] Figure 2 This is a schematic diagram of the structure of the down comforter in Example 2;

[0023] Figure 3 This is a schematic diagram of the structure of the down comforter in Example 3;

[0024] Figure 4 This is a schematic diagram of the structure of the down comforter in Example 4.

[0025] Figure Labels

[0026] 11-N-sided polygon, 12-central area, 13-both sides, 14-middle, 15-head of the quilt, 16-tail of the quilt. Detailed Implementation

[0027] The present invention will be further illustrated by specific examples below. However, it should be noted that the specific material ratios, process conditions and results described in the embodiments of the present invention are only for illustrating the present invention and cannot be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

[0028] One embodiment of this utility model provides a down comforter, which includes several continuously arranged filling units. Each filling unit is formed by several N-sided polygons 11 continuously arranged along the length and width directions of the down comforter. All N-sided polygons 11 located in the same filling unit enclose a central region 12. All interior angles of the N-sided polygons 11 are obtuse angles. The sides of the N-sided polygons 11 are formed by pleats. The width of the pleats is 0.5-5cm, the side length of the N-sided polygons 11 is 5-15cm, the filling height of the filling material in the N-sided polygons 11 is 5-10cm, and the filling height of the filling material in the central region 12 is less than 4cm. The filling material is duck down, goose down, or a mixture of duck down and goose down, or a mixture of at least one of duck down and goose down with polyester fiber.

[0029] In another embodiment of the present invention, the side length of the N-sided polygon 11 located on the left and right sides 13 of the down comforter is greater than the side length of the N-sided polygon 11 located in the middle part 14 of the down comforter.

[0030] In another embodiment of the present invention, the side length of the N-sided polygon 11 located at the head 15 of the down comforter is smaller than the side length of the N-sided polygon 11 located at the middle part 14 of the down comforter.

[0031] In another embodiment of the present invention, the side length of the N-sided polygon 11 located at the tail 16 of the down comforter is smaller than the side length of the N-sided polygon 11 located at the middle part 14 of the down comforter.

[0032] The present invention will be described in detail below through specific examples and embodiments. It should also be understood that the following embodiments are only for specific illustration of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-essential improvements and adjustments made by those skilled in the art based on the above description of the present invention are within the scope of protection of the present invention. The specific process parameters, etc., in the following examples are merely examples within a suitable range; that is, those skilled in the art can make appropriate selections within the appropriate range based on the description herein, and are not intended to be limited to the specific values ​​in the examples below.

[0033] Example 1

[0034] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of the down comforter in this embodiment.

[0035] Please continue reading. Figure 1 This embodiment of the down comforter includes several continuously arranged filling units. Each filling unit is formed by several N-sided polygons 11 continuously arranged along the length and width directions of the down comforter. All N-sided polygons 11 within the same filling unit enclose a central region 12. All interior angles of the N-sided polygons 11 are obtuse angles. Examples of N-sided polygons 11 include pentagons, hexagons, heptagons, octagons, etc. The N-sided polygons 11 can be equilateral or scalene polygons. The sides of the N-sided polygons 11 are formed by pleats, with a pleat width of 0.5-5 cm and a side length of 5-15 cm. The filling height within the N-sided polygons 11 is 5-10 cm, and the filling height within the central region 12 is less than 4 cm. The filling material is duck down, goose down, or a mixture of duck down and goose down, or a mixture of at least one of duck down and goose down with polyester fiber. There are no restrictions on the material of the pleats. For example, they can be made of any of the following fabrics: cotton, linen, or polyester, or they can be made of flannel, brushed fabric, etc.

[0036] Specifically, in this embodiment, the sides of the N-sided polygon 11 are formed by pleats, which can increase the space of the N-sided polygon 11, accommodate more still air, and improve the warmth of the down comforter.

[0037] The principle of this down comforter is as follows: By setting all interior angles of the N-sided polygon 11 to be obtuse angles, the down and other filling materials can fully exert their tension and become fluffy through the obtuse angles of the N-sided polygon 11, allowing the still air to reach saturation and improving the warmth retention. At the same time, the obtuse angles of the N-sided polygon 11 prevent the down from gathering in low-resistance areas after long-term use, thus avoiding technical problems such as local voids or accumulation. Through a number of continuously arranged filling units, each filling unit is composed of several N-sided polygons 11 continuously arranged along the length and width of the down comforter. All the N-sided polygons 11 located in the same filling unit 11 enclose a central area 12, which can enhance the warmth retention. The three-dimensional feel and overall visual fluffiness of the down comforter create a three-dimensional support, reducing the gap between the comforter and the body during movement, improving the fit and further enhancing warmth. Furthermore, the difference in size between the N-sided polygon 11 and the central area 12 results in different amounts of still air, leading to differences in warmth. When the bed temperature is too high, this difference in warmth allows for heat exchange, regulating the bed temperature and improving the user experience. Additionally, it ensures a more even distribution of down and other fillings, reducing areas that are too thick or too thin, thus enhancing the comfort of the down comforter.

[0038] Example 2

[0039] Please see Figure 2 , Figure 2This is a schematic diagram of the structure of the down comforter in this embodiment.

[0040] Please continue reading. Figure 2 The difference between this embodiment and embodiment 1 is that the side length of the N-sided polygon 11 located on the left and right sides 13 of the down comforter is greater than the side length of the N-sided polygon 11 located in the middle part 14 of the down comforter.

[0041] Specifically, in this embodiment, by setting the side length of the N-sided polygons 11 located on the left and right sides 13 of the down comforter to be greater than the side length of the N-sided polygons 11 located in the middle part 14 of the down comforter, the density of the N-sided polygons 11 in the middle part 14 can be increased, the warmth of the middle part 14 can be improved, and the technical problem of poor warmth in the middle caused by gaps in the middle when used by two people can be avoided, thus improving the user experience.

[0042] Example 3

[0043] Please refer to Figure 3. Figure 3 This is a schematic diagram of the structure of the down comforter in this embodiment.

[0044] Please continue reading. Figure 3 The difference between this embodiment and embodiment 1 is that the side length of the N-sided shape 11 located at the head 15 of the down comforter is smaller than the side length of the N-sided shape 11 located at the middle 14 of the down comforter and / or the side length of the N-sided shape 11 located at the tail 16 of the down comforter is smaller than the side length of the N-sided shape 11 located at the middle 14 of the down comforter.

[0045] Specifically, this utility model increases the density of the N-sided shapes 11 in the head 15 and / or tail 16 of the down comforter by setting the side length of the N-sided shape 11 in the middle 14 of the down comforter and / or the side length of the N-sided shape 11 in the tail 16 of the down comforter to be smaller than that in the middle 14 of the down comforter. This improves the warmth of the head 11 and enhances the user experience when used by two people.

[0046] Example 4

[0047] Please see Figure 4 , Figure 4 This is a schematic diagram of the structure of the down comforter in this embodiment.

[0048] Please continue reading. Figure 4 The difference between this embodiment and embodiment 2 is that the side length of the N-sided shape 11 located at the head 15 of the down comforter is smaller than the side length of the N-sided shape 11 located at the middle 14 of the down comforter and / or the side length of the N-sided shape 11 located at the tail 16 of the down comforter is smaller than the side length of the N-sided shape 11 located at the middle 14 of the down comforter.

[0049] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A down comforter, characterized in that, The down comforter includes several continuously arranged filling units. Each filling unit is formed by several N-sided polygons arranged continuously along the length and width of the down comforter. All the N-sided polygons located in the same filling unit enclose a central area, and all the interior angles of the N-sided polygons are obtuse angles.

2. The down comforter as described in claim 1, characterized in that, The sides of the N-gon are formed by pleats.

3. The down comforter as described in claim 2, characterized in that, The width of the pleats is 0.5-5cm.

4. The down comforter as described in claim 1, characterized in that, The side length of the N-sided polygon is 5-15cm.

5. The down comforter as described in claim 1, characterized in that, The filling height of the infill material inside the N-sided polygon is 5-10cm.

6. The down comforter as described in claim 5, characterized in that, The filling height of the filler in the central area is less than 4cm.

7. The down comforter as described in claim 5, characterized in that, The filling material is duck down, goose down, or a mixture of duck down and goose down, or a mixture of at least one of duck down and goose down with polyester fiber.

8. The down comforter as described in claim 1, characterized in that, The side length of the N-sided polygon located on the left and right sides of the down comforter is greater than the side length of the N-sided polygon located in the middle of the down comforter.

9. The down comforter as described in claim 1, characterized in that, The side length of the N-sided polygon located at the head of the down comforter is smaller than the side length of the N-sided polygon located in the middle of the down comforter.

10. The down comforter as described in claim 1, characterized in that, The side length of the N-sided shape located at the tail of the down comforter is smaller than the side length of the N-sided shape located in the middle of the down comforter.