Symmetrical curved line quilting down jacket

Abstract

The utility model relates to down jacket technical field, and disclose a kind of symmetry curvature line basting down jacket, it includes down jacket main body, the sleeve is uniformly provided in the upper portion of both sides of down jacket main body, curve basting is symmetrically distributed on down jacket main body, hood is set in the middle of down jacket main body upper end, hidden zipper is set between the lower end of hood and down jacket main body, bag strap is set on the down jacket main body of the periphery of hidden zipper. Down jacket main body is made of double-axis symmetry curve basting formed by NURBS algorithm parameterization curve model, can greatly optimize the distribution of down in down jacket;Gradient density sewing strategy of 5~12 needle / cm is used in curve basting, can form the shape memory dynamic adjustment similar to memory alloy in curve basting, can effectively improve the dynamic warm-keeping performance and wind resistance of down jacket, so that down jacket is more slim, beautiful and harmonious in visual.

Description

Technical Field

[0001] This utility model belongs to the field of down jacket technology, specifically a quilted down jacket with symmetrical curved lines. Background Technology

[0002] Down jackets are cold-weather outer garments filled primarily with duck or goose down. They achieve their warmth by trapping air through a three-dimensional down cluster structure. Down jackets are lightweight, soft, and warm, combining warmth with style and aesthetics. In the cold winter, the unique texture and functionality of down jackets are unmatched by other garments.

[0003] Current down jacket quilting techniques mainly employ straight lines or simple geometric patterns such as diamonds and squares. In recent years, some curved quilting designs have emerged, but they often suffer from the following drawbacks: they are dominated by asymmetrical random curves, lacking systematic aesthetic considerations; the curve design relies on manual experience and has not established a scientific parameter system; functionality and aesthetics are disconnected, making it difficult to balance warmth and fashion needs; and complex curve processes are difficult to achieve, resulting in high mass production costs. Therefore, this paper proposes a symmetrical curved line quilted down jacket. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a symmetrical curved line quilted down jacket, which effectively solves the problems existing in the current down jacket.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a symmetrical curved quilted down jacket, comprising a down jacket body, sleeves on both upper sides of the down jacket body, symmetrically distributed curved quilting on the down jacket body, a hood in the upper middle of the down jacket body, a hidden zipper between the lower end of the hood and the down jacket body, a bag strap on the down jacket body surrounding the hidden zipper, a main zipper at the middle connection of the down jacket body, a main zipper with a main zipper lock, a placket on the down jacket body surrounding the main zipper, snap buttons on the placket and the down jacket body, and drawstrings on the hood located on both sides above the placket, the drawstrings passing through the inside of the open edge of the hood.

[0006] Preferably, the sleeve is sewn to the main body of the down jacket, and a windproof cuff is sewn to the inner wall of the sleeve at the end away from the main body of the down jacket. The windproof cuff allows the cuff to fit more closely to the skin, effectively preventing cold wind from entering the down jacket through the cuff, and has a good warmth retention effect. The curved quilting is sewn onto the main body of the down jacket. The curved quilting uses the NURBS algorithm to construct a parametric curve model and establishes a curve library with curvature k=0.1~0.8, which is selected according to the style requirements of the down jacket. The curvature lines of the curved quilting are biaxially symmetrical. With the help of CFD simulation, the distribution of down inside the down jacket can be greatly optimized. Using a gradient density sewing strategy of 5~12 stitches / cm, the curved quilting can form a shape memory dynamic adjustment similar to a shape memory alloy, which can effectively improve the dynamic warmth retention and wind resistance of the down jacket, making the down jacket more slim, beautiful and harmonious in appearance.

[0007] Preferably, the lower end of the hood is connected to the upper end of the down jacket body via a hidden zipper. The two parts of the hidden zipper are sewn to the middle of the upper end of the down jacket body and the lower end of the hood, respectively, and have zippers. The bag strap is sewn to the down jacket body and is used to hide the hidden zipper. The hood can be detached from the down jacket body via the hidden zipper.

[0008] Preferably, the two parts of the main zipper are sewn to the two ends of the connection point in the middle of the down jacket body, and the main zipper is slidably connected to the main zipper.

[0009] Preferably, the flap is formed on the main body of the down jacket, and the male and female snap buttons are respectively riveted to the flap and the main body of the down jacket. The opening at the chest of the main body of the down jacket can be closed by the main zipper, the main zipper and the snap buttons. The flap can wrap the main zipper, so that the down jacket has a better windproof and warm effect.

[0010] Preferably, the drawstring is slidably connected to the inner wall of the hood, and the hood can be tightened by the drawstring to give the hood a better windproof and warm effect.

[0011] Compared with the prior art, the beneficial effects of this utility model are: In this symmetrical curved quilted down jacket, the main body of the down jacket features a biaxially symmetrical curved quilting constructed using a parametric curve model based on the NURBS algorithm. This significantly optimizes the distribution of down feathers within the jacket. The curved quilting employs a gradient density sewing strategy of 5-12 stitches / cm, enabling the curved quilting to achieve shape memory-like dynamic adjustment, similar to a shape memory alloy. This effectively enhances the dynamic warmth retention and wind resistance of the down jacket, making it appear slimmer, more aesthetically pleasing, and more harmonious. The biaxially symmetrical curved quilting process is simple, effectively reducing mass production costs and improving production efficiency. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model after the hood is removed; Figure 3 This is a schematic diagram of the back structure of this utility model; Figure 4 This is a schematic diagram of the structure of the inner wall of the back of this utility model; Figure 5 This utility model Figure 1 A magnified view of a section at point A in the middle; In the picture: 1. Main body of down jacket; 2. Sleeves; 3. Curved quilting; 4. Hood; 5. Hidden zipper; 6. Bag strap; 7. Main zipper; 8. Main zipper; 9. Front flap; 10. Snap buttons; 11. Drawstring; 12. Windproof cuffs. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0014] In this embodiment, by Figure 1-5 The present invention includes a down jacket body 1, sleeves 2 on both upper sides of the down jacket body 1, symmetrical curved quilting 3 on the down jacket body 1, a hood 4 in the middle of the upper part of the down jacket body 1, a hidden zipper 5 between the lower end of the hood 4 and the down jacket body 1, a bag strap 6 on the down jacket body 1 around the hidden zipper 5, a main zipper 7 at the middle connection of the down jacket body 1, a main zipper 8 on the main zipper 7, a front guard 9 on the down jacket body 1 around the main zipper 7, snap buttons 10 on the front guard 9 and the down jacket body 1, and drawstrings 11 on the hood 4 on both sides above the front guard 9, the drawstrings 11 passing through the inside of the open edge of the hood 4.

[0015] The sleeve 2 is sewn to the main body 1 of the down jacket. A windproof cuff 12 is sewn to the inner wall of the sleeve 2 away from the main body 1. The windproof cuff 12 can make the cuff end fit the skin more closely and effectively prevent cold wind from entering the down jacket through the cuff, thus having a good warmth retention effect. The curved quilting 3 is sewn on the main body 1 of the down jacket. The curved quilting 3 uses the NURBS algorithm to construct a parametric curve model and establishes a curve library with curvature k=0.1~0.8. The curves are selected according to the style of the down jacket. The curvature lines of the curved quilting 3 are biaxially symmetrical. With the help of CFD simulation, the distribution of down in the down jacket can be greatly optimized. The gradient density sewing strategy of 5~12 stitches / cm can make the curved quilting 3 form a shape memory dynamic adjustment similar to the shape memory of a memory alloy, which can effectively improve the dynamic warmth retention and wind resistance of the down jacket, making the down jacket more slim, beautiful and harmonious.

[0016] The lower end of the hood 4 is connected to the upper end of the down jacket body 1 by a hidden zipper 5. The two parts of the hidden zipper 5 are sewn on the middle of the upper end of the down jacket body 1 and the lower end of the hood 4, respectively. It has a zipper. The bag strap 6 is sewn to the down jacket body 1. The bag strap 6 is used to hide the hidden zipper 5. The hood 4 can be detached from the down jacket body 1 through the hidden zipper 5.

[0017] The two parts of the main zipper 7 are sewn to the two ends of the connection at the middle of the down jacket body 1. The main zipper 8 is slidably connected to the main zipper 7. The flap 9 is formed on the down jacket body 1. The male and female buttons of the snap buttons 10 are riveted to the flap 9 and the down jacket body 1, respectively. The opening in front of the down jacket body 1 can be closed through the main zipper 7, the main zipper 8 and the snap buttons 10. The flap 9 can wrap the main zipper 7, so that the down jacket has a better windproof and warm effect.

[0018] The drawstring 11 is slidably connected to the inner wall of the hood 4. The drawstring 11 can tighten the hood 4, giving it a better windproof and warm effect.

[0019] Working principle: The main zipper 7, main zipper 8, and snap buttons 10 can close the opening at the chest of the down jacket body 1. The lapels 9 can wrap around the main zipper 7, giving the down jacket better windproof and warmth. The drawstring 11 can tighten the hood 4, giving the hood 4 better windproof and warmth. The hood 4 can be attached to and detached from the down jacket body 1 through the hidden zipper 5. The curved quilting 3 on the down jacket body 1 uses the NURBS algorithm to construct a parametric curve model and establish a curve library with curvature k=0.1~0.8. The curves are selected according to the style of the down jacket. The curvature lines of the curved quilting 3 are biaxially symmetrical. With the help of CFD simulation, the distribution of down inside the down jacket can be greatly optimized. The gradient density sewing strategy of 5~12 stitches / cm can make the curved quilting 3 form a shape memory dynamic adjustment similar to the shape memory alloy, which can effectively improve the dynamic warmth and wind resistance of the down jacket, making the down jacket more slim, beautiful and harmonious.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A symmetrical curved quilted down jacket, comprising a down jacket body (1), characterized in that: The down jacket body (1) has sleeves (2) on both upper sides. The down jacket body (1) has symmetrically distributed curved quilting (3). The down jacket body (1) has a hood (4) at the upper middle part. The hood (4) and the down jacket body (1) have a hidden zipper (5) between the lower end of the hood (4) and the down jacket body (1). The down jacket body (1) around the hidden zipper (5) has a bag strap (6). The down jacket body (1) has a main zipper (7) at the middle connection point. The main zipper (7) has a main zipper (8). The down jacket body (1) around the main zipper (7) has a flap (9). The flap (9) and the down jacket body (1) have snap buttons (10). The hood (4) on both sides above the flap (9) has a drawstring (11). The drawstring (11) passes through the inside of the open edge of the hood (4).

2. A symmetrical curved quilted down jacket according to claim 1, characterized in that: The sleeve (2) is sewn to the down jacket body (1), and a windproof cuff (12) is sewn to the inner wall of the sleeve (2) away from the down jacket body (1). The curved quilting (3) is sewn onto the down jacket body (1).

3. A symmetrical curved quilted down jacket according to claim 1, characterized in that: The lower end of the hood (4) is connected to the upper end of the down jacket body (1) via the hidden zipper (5). The two parts of the hidden zipper (5) are sewn to the middle of the upper end of the down jacket body (1) and the lower end of the hood (4) respectively, and have zippers. The bag strap (6) is sewn to the down jacket body (1).

4. A symmetrical curved quilted down jacket according to claim 1, characterized in that: The two parts of the main zipper (7) are sewn to the two ends of the connection point in the middle of the down jacket body (1), and the main zipper (8) is slidably connected to the main zipper (7).

5. A symmetrical curved quilted down jacket according to claim 1, characterized in that: The flap (9) is formed on the down jacket body (1), and the male and female snaps of the snap (10) are respectively riveted to the flap (9) and the down jacket body (1).

6. A symmetrical curved quilted down jacket according to claim 1, characterized in that: The pull cord (11) is slidably connected to the inner wall of the hood (4).

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