A type of warm down comforter

By introducing connecting structures and divider strips into the down comforter, the problems of separation between the down comforter core and the comforter cover and uneven filling are solved, achieving stable warmth and comfortable use of the down comforter.

CN224307096UActive Publication Date: 2026-06-02HANGZHOU JOYCE HOUSEHOLD TEXTILES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU JOYCE HOUSEHOLD TEXTILES CO LTD
Filing Date
2025-06-25
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing down comforters are prone to separating from the duvet cover during use, resulting in poor warmth retention and uneven down filling, which affects the quality of use.

Method used

The relative positions of the down comforter core and the comforter cover are fixed by a connecting structure (connecting male buckle and connecting female buckle), and the down is separated by a grid structure formed by vertical and horizontal dividing strips. The comforter core has a multi-layer structure, including an outer layer, a down-proof layer and a filling layer. The outer layer is made of pure cotton fabric, and the down-proof layer is made of fine denier chemical fiber material.

Benefits of technology

It effectively prevents the down comforter core from separating from the comforter cover, ensures the uniformity of the down filling, improves warmth and comfort, and keeps the down comforter clean and warm.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a warm down comforter, including a down comforter core and a down comforter cover. The down comforter core is installed inside the down comforter cover. An inlet is opened on one side of the down comforter cover, and a zipper is provided on the inlet. A connection structure to prevent the down comforter core from shifting is provided between the down comforter cover and the down comforter core. Multiple vertical dividing strips are sewn inside the down comforter core, dividing the down comforter core into multiple down filling areas through the multiple vertical dividing strips. A down filling port is opened on one side of the down comforter core corresponding to each down filling area. A sealing element is provided on each down filling port for sealing the down filling port. Multiple horizontal dividing strips are sewn on the side wall of each vertical dividing strip, and each horizontal dividing strip has a corresponding notch, and each notch corresponds to the down filling port. The down comforter core adopts a multi-layer structure, which solves the problems of existing down comforters being prone to shifting during use and the down inside the down comforter often piling up into a clump, affecting the warmth retention.
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Description

Technical Field

[0001] This utility model relates to the field of down comforter technology, and in particular to a warm down comforter. Background Technology

[0002] The filling of down comforters is mainly down, which is the fluffy down that grows on the abdomen of geese and ducks. When it grows in sheets, it is called feathers. Because down is an animal protein fiber, it has a higher heat retention than cotton (plant cellulose). Moreover, the down spherical fibers are densely covered with millions of tiny triangular pores, which can expand and contract with changes in temperature, thus producing a temperature-regulating function. It can absorb the heat emitted by the human body and insulate against the intrusion of cold air from the outside.

[0003] To prevent stains from accumulating over time, down comforters are often covered with a duvet cover. Regularly changing the cover keeps the comforter clean. However, down comforters are prone to shifting and separating from the cover, thus reducing their warmth. Furthermore, because down comforters rely on lightweight down filling for warmth, the down tends to clump together over time, resulting in uneven filling and significant differences in warmth in certain areas. This reduces the overall quality of the comforter and affects its usability. To address these issues, a solution is proposed below. Utility Model Content

[0004] The purpose of this invention is to provide a warm down comforter to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A warm down comforter includes a down comforter core and a down comforter cover. The down comforter core is installed inside the down comforter cover. An inlet is provided on one side of the down comforter cover, and a zipper is provided on the inlet. A connection structure to prevent misalignment is provided between the down comforter cover and the down comforter core. Multiple vertical dividing strips are sewn inside the down comforter core, dividing the down comforter core into multiple down-filling areas by the multiple vertical dividing strips. A down-filling opening is provided on one side of the down comforter core corresponding to each of the down-filling areas. A sealing element is provided on each down-filling opening for sealing the down-filling opening. Multiple horizontal dividing strips are sewn on the side wall of each of the vertical dividing strips, and each of the horizontal dividing strips has a corresponding notch, and each notch corresponds to the down-filling opening. The down comforter core adopts a multi-layer structure.

[0007] Preferably, the connection structure includes multiple male connectors and multiple female connectors. Each support leg of the down comforter core is equipped with a connecting strip. Each male connector is fixed to the connecting strip, and each female connector is fixed to the inner corner of the down comforter cover. The male connectors and female connectors correspond to and are compatible with each other.

[0008] Preferably, the down comforter core includes an outer layer, a down-proof layer, and a filling layer, which are sequentially composited from the outside to the inside. The outer layer is made of pure cotton fabric with a 120-count pure cotton structure. The down-proof layer is made of fine denier synthetic fiber with a fiber density of 20d. Down is filled in the filling layer.

[0009] Preferably, the down comforter core is divided into a grid structure by the vertical and horizontal dividing strips, and both the vertical and horizontal dividing strips are made of warp-knitted fabric.

[0010] Preferably, the sealing element can be a zipper or a Velcro fastener to achieve the seal.

[0011] Preferably, the notch has a cross-shaped opening structure.

[0012] Beneficial Effects: This application, through its connecting structure (including male and female connectors), effectively secures the relative position between the down comforter core and the down comforter cover, preventing separation or misalignment of the core during use and ensuring the comforter's sustained warmth. The internal mesh structure formed by multiple vertical and horizontal dividers evenly distributes the down within multiple filling zones. This design effectively prevents down from clumping together over long-term use, ensuring uniform down filling and enhancing the overall warmth and comfort of the comforter. The outer layer of the down comforter core uses 120-count pure cotton fabric, which is not only soft and comfortable but also has excellent breathability and moisture absorption, improving the user's sleep experience. Simultaneously, the down-proof layer uses fine denier synthetic fiber material, effectively preventing down leakage and maintaining the comforter's cleanliness and warmth. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0014] Figure 2 This is a top view schematic diagram used to illustrate the structure of a down comforter core in an example embodiment;

[0015] Figure 3 This is a schematic diagram of the top cross-sectional structure of a down comforter core, used as an example.

[0016] Figure 4 This is a schematic diagram showing a partial cross-sectional structure of a down comforter core, used as an example.

[0017] Figure 5 This is a schematic diagram illustrating the structure of the horizontal divider strip in an embodiment.

[0018] Figure 6 This is a side view diagram illustrating the structure of a down comforter, used as an example.

[0019] Reference numerals: 1. Down comforter core; 2. Down comforter cover; 3. Zipper 1; 4. Connecting structure; 5. Vertical divider strip; 6. Filling area; 7. Filling port; 8. Sealing element; 9. Horizontal divider strip; 10. Notch; 11. Connecting male buckle; 12. Connecting female buckle; 13. Connecting strip; 14. Outer layer; 15. Down-proof layer; 16. Filling layer. Detailed Implementation

[0020] See Figures 1 to 6 As shown, a warm down comforter includes a down comforter core 1 and a down comforter cover 2. The down comforter core 1 is installed inside the down comforter cover 2. An inlet is provided on one side of the down comforter cover 2, and a zipper 3 is provided on the inlet. A connecting structure 4 is provided between the down comforter cover 2 and the down comforter core 1 to prevent it from shifting. When it is necessary to put the down comforter core 1 on the down comforter cover 2, the zipper 3 of the down comforter cover 2 can be opened first, so that the down comforter core 1 can be stuffed into the down comforter cover 2. After the down comforter core 1 is stuffed into the down comforter cover 2, the connection between the down comforter cover 2 and the down comforter core 1 can be realized through the connecting structure 4, so as to prevent the down comforter core 1 from shifting during later use, which would cause the problem of poor warmth retention.

[0021] The connecting structure 4 includes multiple connecting male buckles 11 and multiple connecting female buckles 12. Each support leg of the down comforter core 1 is equipped with a connecting strip 13. Each connecting male buckle 11 is fixed to the connecting strip 13, and each connecting female buckle 12 is fixed to the inner corner of the down comforter cover 2. The connecting male buckles 11 and the connecting female buckles 12 correspond to and are compatible with each other. When the down comforter core 1 is inserted into the down comforter cover 2, one side of the connecting strip 13 of the down comforter core 1 can be pulled to insert it into the down comforter cover 2. After the connecting strip 13 moves to the designated position, the connecting male buckles 11 on the connecting strip 13 can be fixed to the connecting female buckles 12 on the down comforter cover 2. Then, in the same way, each connecting male buckle 11 is fixedly connected to the connecting female buckle 12. Through the setting of the connecting male buckles 11 and the connecting female buckles 12, the relative position between the down comforter core 1 and the down comforter cover 2 is effectively fixed, avoiding the phenomenon of the down comforter core 1 separating from the comforter cover or shifting during use.

[0022] The down comforter core 1 has multiple vertical dividing strips 5 sewn inside, which divide the down comforter core 1 into multiple down filling areas 6. Multiple horizontal dividing strips 9 are sewn on the side walls of each vertical dividing strip 5. The down comforter core 1 is divided into a grid structure by the vertical dividing strips 5 and the horizontal dividing strips 9. Both the vertical dividing strips 5 and the horizontal dividing strips 9 are made of warp-knitted fabric. The grid structure formed by the multiple vertical dividing strips 5 and the horizontal dividing strips 9 inside the down comforter core 1 evenly distributes the down in the multiple down filling areas 6. This design effectively prevents the down from piling up during long-term use and ensures the uniformity of the down filling.

[0023] One side of the down comforter core 1 is provided with a down filling port 7 corresponding to each down filling area 6. Each down filling port 7 is provided with a sealing element 8 for sealing the down filling port 7. Each transverse partition 9 is provided with a corresponding notch 10, and each notch 10 corresponds to the down filling port 7. When it is necessary to fill the down comforter core 1 with down, the sealing element 8 of the corresponding down filling port 7 can be driven, so that the down filling tube of the down filling machine can be inserted into the down comforter core 1. The down filling tube will pass through each notch 10, thereby realizing the down filling process of each down filling area 6.

[0024] Notch 10 adopts a cross-shaped opening structure. By designing notch 10 as a cross-shaped opening structure, notch 10 is divided into multiple membrane flaps. Each membrane flap is made of rubber. During the insertion process, the filling tube will squeeze the membrane flaps, causing them to deform, so that the filling tube can pass through notch 10. When the filling is completed in the filling area 6 and the filling tube is withdrawn, the filling tube no longer squeezes the membrane flaps. At this time, the membrane flaps can be reset, thus blocking notch 10 and reducing down separation and deviation.

[0025] The sealing element 8 can be made of Velcro. After each filling zone 6 has been filled, the filling port 7 can be sealed with Velcro to prevent down leakage.

[0026] The down comforter core 1 adopts a multi-layer structure, including an outer layer 14, a down-proof layer 15, and a filling layer 16. The outer layer 14, the down-proof layer 15, and the filling layer 16 are sequentially composited from the outside to the inside. The outer layer 14 is made of pure cotton fabric with a 120-count pure cotton structure. The high count of the pure cotton fabric makes it more delicate, soft, and durable. The down-proof layer 15 is made of fine denier synthetic fiber with a fiber density of 20d. The ultra-fine fiber can improve the fabric density and achieve the down-proof effect. Down is filled in the filling layer 16.

Claims

1. A warm down comforter, comprising a down comforter core (1) and a down comforter cover (2), characterized in that, The down comforter core (1) is installed inside the down comforter cover (2). An inlet is provided on one side of the down comforter cover (2), and a zipper (3) is provided on the inlet. A connection structure (4) to prevent misalignment is provided between the down comforter cover (2) and the down comforter core (1). Multiple vertical dividing strips (5) are sewn inside the down comforter core (1). The down comforter core (1) is divided into multiple down-filling areas (6) by the multiple vertical dividing strips (5). One side of the down filling area (6) is provided with a down filling port (7), and each down filling port (7) is provided with a sealing element (8) for sealing the down filling port (7). Multiple horizontal dividing strips (9) are sewn on the side wall of each vertical dividing strip (5). Each horizontal dividing strip (9) is provided with a corresponding notch (10), and each notch (10) corresponds to the down filling port (7). The down comforter core (1) adopts a multi-layer structure.

2. The down comforter according to claim 1, characterized in that, The connection structure (4) includes multiple connecting male buckles (11) and multiple connecting female buckles (12). Each support leg of the down comforter core (1) is equipped with a connecting strip (13). Each connecting male buckle (11) is fixed on the connecting strip (13), and each connecting female buckle (12) is fixed on the inner corner of the down comforter cover (2). The connecting male buckles (11) and the connecting female buckles (12) correspond to each other and are compatible with each other.

3. A warm down comforter according to claim 1, characterized in that, The down comforter core (1) includes an outer layer (14), a down-proof layer (15), and a filling layer (16). The outer layer (14), the down-proof layer (15), and the filling layer (16) are sequentially composited from the outside to the inside. The outer layer (14) is made of pure cotton fabric with a 120-count pure cotton structure. The down-proof layer (15) is made of fine denier synthetic fiber with a fiber density of 20d. Down is filled in the filling layer (16).

4. A warm down comforter according to claim 1, characterized in that, The down comforter core (1) is divided into a grid structure by the vertical dividing strip (5) and the horizontal dividing strip (9), and both the vertical dividing strip (5) and the horizontal dividing strip (9) are made of warp-knitted fabric.

5. A warm down comforter according to claim 1, characterized in that, The sealing element (8) can be achieved by using a zipper or Velcro.

6. A warm down comforter according to claim 1, characterized in that, The notch (10) adopts a cross-shaped opening structure.