Windproof sleeves for windproof down jacket and windproof down jacket

By designing the connection between the secondary sleeves of the windproof sleeves and the inner liner, the problems of poor comfort and insufficient linkage of the existing down jacket cuff design are solved, and better wrist wrapping and wind resistance are achieved.

CN222532779UActive Publication Date: 2025-02-28BEIJING SKYMAN CLOTHING CO LTD
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Patent Information

Application Number
CN202421323258.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-11
Publication Date
2025-02-28
Estimated Expiration
2034-06-11

AI Technical Summary

Technical Problem

The existing down jacket cuff design has problems such as poor comfort and insufficient linkage. The tight-mouth design cannot effectively keep warm and expose the hands, while the loose-mouth design can easily allow cold wind to enter the sleeves under strong winds.

Method used

A windproof sleeve is designed, including the main sleeve, inner liner and secondary sleeve. The first end of the secondary sleeve is connected to the inner liner, and the part of the side wall is connected to the inner wall of the primary sleeve to form an enclosure area to balance the tightness of the wrist and improve the linkage between the secondary sleeve and the primary sleeve.

Benefits of technology

Through this design, the wrist is tightly wrapped, the linkage between the secondary sleeve and the main sleeve is improved, the comfort is enhanced, and the user experience is improved, while maintaining good wind resistance under strong wind conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a windproof sleeve for a windproof down jacket and the windproof down jacket, and the windproof sleeve comprises a main sleeve, an inner container and an auxiliary sleeve. The inner container is arranged in the main sleeve in a sleeved mode. The auxiliary sleeves are arranged in the main sleeves in a sleeved mode, and the two opposite ends of the auxiliary sleeves are marked as the first ends away from the cuffs and the second ends close to the cuffs respectively. The first end of the auxiliary sleeve is constructed to be connected with the free end of the liner, and a partial area of the side wall of the auxiliary sleeve is constructed to be connected to the inner wall of the main sleeve. The ends, away from the cuffs, of the auxiliary sleeves are connected with the liners, partial areas of the side walls of the auxiliary sleeves are connected with the inner walls of the main sleeves, the wrists can be tightly wrapped, the tightness degree of the auxiliary sleeves to the wrists with different thicknesses can be balanced, the auxiliary sleeves are connected with the sleeves through the side portions and the bottoms, and therefore the linkage performance of the auxiliary sleeves and the main sleeves is improved; and the comfort is improved.
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Description

Technical Field

[0001] The present disclosure relates to the technical field of clothing, and in particular to a windproof sleeve for a windproof down jacket; the present disclosure also relates to a windproof down jacket. Background Art

[0002] Down jackets are one of the most commonly used cold-proof and warm clothing in winter, and collars and cuffs with good windproof performance are indispensable. At present, the cuff design of down jackets is mainly divided into whether it contains auxiliary sleeves or not.

[0003] Disadvantages of the prior art: The cuffs of down jackets without side sleeves are divided into tight-end design and loose-end design. The tight-end design cuffs without side sleeves are closed when worn. Because of their high elasticity, people's hands cannot be retracted into the cuffs well. Although the cold wind is blocked from entering the sleeves, the exposed hands cannot be well kept warm. The loose-end design cuffs without side sleeves allow people to retract their hands into the cuffs at any time when they feel cold, which is more convenient. However, their sealing performance is poor. When the cold wind is strong, the cold wind can easily enter the sleeves, reducing the warmth retention of the down jacket.

[0004] Nowadays, most of the secondary sleeves of down jackets are made of highly elastic fabrics. The secondary sleeves are connected to the main sleeves through the bottom. The secondary sleeves often tightly wrap around the wrists due to their excessive elasticity. Although they have a windproof effect, they are less comfortable. Because the secondary sleeves are only connected to the main sleeves through the bottom, the linkage between the two is poor, and the secondary sleeves cannot drive the main sleeves well in certain movements. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the present disclosure provides a windproof sleeve for a windproof down jacket and a windproof down jacket.

[0006] According to a first aspect of the present disclosure, there is provided a windproof sleeve for a windproof down jacket, comprising:

[0007] Main sleeve;

[0008] An inner liner, wherein the inner liner is sleeved in the main sleeve;

[0009] A secondary sleeve, wherein the secondary sleeve is arranged in the main sleeve, and the opposite ends of the secondary sleeve are respectively marked as a first end away from the cuff and a second end adjacent to the cuff; the first end of the secondary sleeve is constructed to be connected to the free end of the liner, and a partial area of ​​the side wall of the secondary sleeve is constructed to be connected to the inner wall of the main sleeve.

[0010] In one embodiment of the present disclosure, the inner liner is constructed to be cylindrical, and the first end of the auxiliary sleeve is constructed to be connected to the inner liner along the circumferential direction of the inner liner.

[0011] In one embodiment of the present disclosure, the auxiliary sleeve is constructed to be a non-closed cylindrical structure, and the two side edges of the auxiliary sleeve are constructed to be respectively connected to the inner wall of the outer sleeve.

[0012] In one embodiment of the present disclosure, in the direction from the first end to the second end, the two side edges of the auxiliary sleeve are constructed to extend obliquely in a close manner to form an enclosed area on the inner wall of the main sleeve.

[0013] In one embodiment of the present disclosure, a portion of the edge of the inner liner is constructed to participate in forming the enclosed area; the portion of the inner liner participating in forming the enclosed area is constructed to be connected to the inner wall of the main sleeve.

[0014] In one embodiment of the present disclosure, the size of the enclosed area is constructed to gradually decrease from the first end to the second end.

[0015] In one embodiment of the present disclosure, the second end of the secondary sleeve is configured not to extend beyond the cuff of the primary sleeve.

[0016] In one embodiment of the present disclosure, the main sleeve includes a surface layer and an inner layer located inside the surface layer; the auxiliary sleeve is connected to the inner wall of the inner layer.

[0017] In one embodiment of the present disclosure, the secondary sleeve material is elastic fabric.

[0018] According to a second aspect of the present disclosure, there is also provided a windproof down jacket, comprising:

[0019] Windproof down jacket body;

[0020] A windproof sleeve according to the first aspect of the present disclosure.

[0021] One beneficial effect of the present invention is that the present invention connects the auxiliary sleeve with the inner liner at one end away from the cuff, and connects a part of the side wall of the auxiliary sleeve with the inner wall of the main sleeve, which can not only tightly wrap the wrist, but also balance the tightness of the auxiliary sleeve for wrists of different thicknesses. The auxiliary sleeve is connected to the main sleeve through the side wall and is connected to the inner liner at the bottom, thereby improving the linkage between the auxiliary sleeve and the main sleeve, improving comfort, and enhancing the user experience.

[0022] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0024] Figure 1 is a side view of the auxiliary sleeve of the windproof sleeve disclosed in the present invention;

[0025] Figure 2 is a schematic diagram of the interior of the windproof sleeve of the present invention;

[0026] Figure 3 is a schematic diagram of the unfolding of the windproof sleeve of the present invention;

[0027] Figure 4 is a cross-sectional schematic diagram of a windproof sleeve liner disclosed in the present invention;

[0028] Figure 5 The present invention provides a front view and a back view of the windproof down jacket.

[0029] Figures 1 to 5 The one-to-one correspondence between the component names and the reference numerals is as follows:

[0030] 1. Main sleeve; 101. Surface layer; 102. Inner layer; 2. Inner lining; 20. Enclosure; 201. Filling layer; 2011. Filling cavity; 202. Inner layer; 203. Middle layer; 3. Auxiliary sleeve; 4. Quilting line; 5. Enclosure. DETAILED DESCRIPTION

[0031] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless otherwise specifically stated.

[0032] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0034] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0035] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0036] In this article, "first", "second", etc. are only used to distinguish each other, and do not indicate the importance and order, or the premise of each other's existence.

[0037] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0038] The present invention provides a windproof sleeve of a windproof down jacket, comprising: a main sleeve, an inner liner and an auxiliary sleeve, wherein the main sleeve is arranged on the outer side away from the human body, and as the outermost side of the windproof down jacket, the main sleeve can be made of a windproof material. The inner liner is arranged on the inner side close to the human body, and a filling layer is arranged in the inner liner, and the filling layer can be filled with goose down or duck down, so as to play a role of cold protection and heat preservation.

[0039] The prior art has a solution of connecting the bottom of a secondary sleeve to the sleeve in a windproof down jacket. The bottom of the secondary sleeve is connected to the main sleeve, which can also play a windproof role. However, since the secondary sleeve tightly wraps around the wrist, it is less comfortable to use. In addition, since the secondary sleeve is only connected to the main sleeve through the bottom, the linkage between the two is poor, and the secondary sleeve cannot drive the main sleeve well in certain movements.

[0040] In the present disclosure, the two opposite ends of the auxiliary sleeve are respectively recorded as the first end away from the cuff and the second end adjacent to the cuff; the first end of the auxiliary sleeve is constructed to be connected to the free end of the liner, and a part of the side wall of the auxiliary sleeve is constructed to be connected to the inner wall of the main sleeve. When in use, due to the fixed connection design of the side of the auxiliary sleeve, the main sleeve restricts the auxiliary sleeve in the axial direction, avoiding the wrist being clamped due to the high elasticity of the auxiliary sleeve, and well balancing the tightness of the auxiliary sleeve for wrists of different thicknesses, thereby improving the comfort during use. In addition, the auxiliary sleeve is connected to the main sleeve through the side wall, and the bottom of the auxiliary sleeve is connected to the liner, which reduces the stretching of the main sleeve due to the auxiliary sleeve, improves the flexibility of the main sleeve, and avoids the poor linkage when the auxiliary sleeve is connected to the sleeve alone. Compared with the existing solution in which the auxiliary sleeve is connected to the sleeve only through the bottom, the present disclosure not only meets the requirements of windproof and warmth retention, but also takes into account the comfort of the windproof sleeve.

[0041] The specific embodiments of the present disclosure are described below in conjunction with the accompanying drawings.

[0042] refer to Figures 1 to 3 The present disclosure provides a windproof sleeve for a windproof down jacket, comprising a main sleeve 1, an inner liner 2 and an auxiliary sleeve 3. The windproof sleeve may also be provided with other basic structures known to those skilled in the art, which are not limited by the present disclosure.

[0043] like Figure 2 As shown, the main sleeve 1 is arranged on the outside away from the human body. The main sleeve 1 is the outermost side of the windproof down jacket and can be made of windproof material, while the liner 2 is arranged on the inside close to the human body.

[0044] In one embodiment of the present disclosure, Figure 4As shown, the liner 2 also includes an inner layer 202 and an intermediate layer 203. The inner layer 202 is arranged on the inner side close to the human body, and the intermediate layer 203 is configured to enclose the inner layer 202 to form a filling layer 201. Specifically, the inner layer 202 is the innermost layer of fabric close to the human body, and can usually be made of a relatively soft and comfortable material. Figure 4 , multiple quilting lines 4 are sewn on the inner side, and the multiple quilting lines 4 are configured to sew the inner layer 202 and the middle layer 203 to separate the filling layer 201 into multiple filling cavities 2011. The filling cavities 2011 allow the duck down or goose down to be evenly distributed in the filling layer 201 without accumulation and agglomeration, thereby ensuring that the filling amount at each position of the windproof sleeve is basically the same, the heat preservation effect of the windproof sleeve is uniform, and the wearing experience of the user is improved.

[0045] In one embodiment of the present disclosure, the inner liner 2 is filled with 800-fill-degree goose down, which further enhances the cold-proof and warm-keeping function of the sleeves.

[0046] In one embodiment of the present disclosure, the auxiliary sleeve 3 of the windproof sleeve is made of elastic fabric. By selecting the elastic material, the tightening property of the cuff of the auxiliary sleeve 3 is improved, which helps to prevent cold wind from entering the inside of the sleeve.

[0047] like Figure 2 As shown, the auxiliary sleeve 3 is arranged in the main sleeve 1, and the opposite ends of the auxiliary sleeve 3 are respectively marked as a first end away from the cuff and a second end adjacent to the cuff; the first end of the auxiliary sleeve 3 is constructed to be connected to the free end of the liner 2, and a partial area of ​​the side wall of the auxiliary sleeve 3 is constructed to be connected to the inner wall of the main sleeve 1.

[0048] The prior art has a solution of connecting the bottom of a secondary sleeve to the sleeve in a windproof down jacket. The bottom of the secondary sleeve is connected to the main sleeve, which can also play a windproof role. However, since the secondary sleeve tightly wraps around the wrist, it is less comfortable to use. In addition, since the secondary sleeve is only connected to the main sleeve through the bottom, the linkage between the two is poor, and the secondary sleeve cannot drive the main sleeve well in certain movements.

[0049] In the present disclosure, the two opposite ends of the auxiliary sleeve 3 are respectively recorded as the first end away from the cuff and the second end adjacent to the cuff; the first end of the auxiliary sleeve 3 is constructed to be connected to the free end of the liner 2, and a part of the side wall of the auxiliary sleeve 3 is constructed to be connected to the inner wall of the main sleeve 1. When in use, due to the fixed connection design on the side of the auxiliary sleeve 3, the tightness of the auxiliary sleeve 3 for wrists of different thicknesses is well balanced, thereby improving the comfort during use. In addition, the auxiliary sleeve 3 is connected to the main sleeve 1 through the side wall, and the bottom of the auxiliary sleeve 3 is connected to the liner 2, which reduces the stretching amount of the main sleeve 1 due to the auxiliary sleeve 3, improves the flexibility of the main sleeve 1, and avoids the poor linkage when the auxiliary sleeve 3 is connected to the sleeve alone. Compared with the existing solution in which the auxiliary sleeve is connected to the sleeve only through the bottom, the present disclosure not only meets the requirements of windproof and warmth retention, but also takes into account the comfort of the windproof sleeve. In addition, only a partial area of ​​the auxiliary sleeve 3 of the present invention is connected to the inner wall of the main sleeve 1, so that the other part is separated from the main sleeve 1, avoiding the main sleeve 1 from excessively restricting the tightness of the auxiliary sleeve 3, and ensuring the linkage between the main sleeve 1 and the auxiliary sleeve 3.

[0050] In one embodiment of the present disclosure, reference Figure 2 , the liner 2 is constructed to be cylindrical, and the first end of the auxiliary sleeve 3 is constructed to be connected to the liner 2 along the circumferential direction of the liner 2. The liner 2 and the main sleeve 1 are both cylindrical, and the liner 2 is sleeved in the main sleeve 1 to provide warmth for the sleeve. Among them, the free end of the liner 2 does not exceed the main sleeve 1, that is, the free end of the liner 2 is in the cuff of the main sleeve 1. This design helps to keep warm and drive away the cold. The outer contour of the first end of the auxiliary sleeve 3 extends along the circumferential direction of the liner 2 and is connected to the edge of the liner 2. In a specific embodiment of the present disclosure, the auxiliary sleeve 3 and the liner 2 can be connected together by sewing to improve the firmness of the connection between the auxiliary sleeve 3 and the liner 2.

[0051] In one embodiment of the present disclosure, reference Figure 1 and Figure 2 , the auxiliary sleeve 3 is constructed to be a non-closed cylindrical structure, and the two side edges of the auxiliary sleeve 3 are constructed to be connected to the inner wall of the main sleeve 1 respectively. Specifically, the auxiliary sleeve 3 has edges on both sides, and after the auxiliary sleeve 3 is connected to the liner 2, the auxiliary sleeve 3 itself does not form a closed cylindrical structure, which can also be understood as a gap formed between the two side edges of the auxiliary sleeve 3 in the axial direction of the auxiliary sleeve 3. In the embodiment of the present disclosure, the two side edges of the auxiliary sleeve 3 are sewn together with the main sleeve 1, which allows the main sleeve 1 to have a certain restriction on the auxiliary sleeve 3 in the axial direction, avoids the auxiliary sleeve 3 from being too tight, helps to balance the tightness of the auxiliary sleeve 3 for wrists of different thicknesses, and at the same time ensures the linkage between the auxiliary sleeve 3 and the main sleeve 1.

[0052] In one embodiment of the present disclosure, reference Figure 2 and Figure 3In the direction from the first end to the second end, the two side edges of the auxiliary sleeve 3 are configured to extend obliquely in a close manner to form an enclosed area 5 on the inner wall of the main sleeve 1. Figure 2 In the viewing direction, the upper edge of the enclosed area 5 is defined as the first edge, the lower edge of the enclosed area 5 is defined as the second edge, the first edge gradually tilts downward from right to left, and the second edge gradually tilts upward from right to left. This makes the size of the enclosed area 5 gradually smaller from the first end to the second end.

[0053] It can be understood that the edges of the two sides of the auxiliary sleeve 3 form an enclosure 5 on the inner wall of the main sleeve 1, that is, the auxiliary sleeve 3 and the inner wall of the main sleeve 1 in the enclosure 5 together form a cylindrical structure of the auxiliary sleeve 3. The size of the enclosure 5 at the first end is larger than its size at the second end, which makes the size of the main sleeve 1 participating in the cylindrical structure at the first end larger, thereby reducing the composition of this part of the auxiliary sleeve 3, thereby reducing the tightness of the first end of the auxiliary sleeve 3, so that it can be more smoothly connected to the liner 2, avoiding the influence of the auxiliary sleeve 3 on the liner 2, and at the same time improving the comfort of the first end of the auxiliary sleeve 3. At the second end, the size of the main sleeve 1 participating in the cylindrical structure is small, and the size of the auxiliary sleeve 3 participating in the cylindrical structure is large, thereby ensuring the tightness of the second end of the auxiliary sleeve 3, so that it can adapt to the user's hand and ensure windproof performance.

[0054] In a specific embodiment of the present disclosure, the enclosed area 5 can be set to a trapezoid, or to other shapes such as an ellipse, a triangle, etc., and the present disclosure does not limit this.

[0055] In a specific embodiment of the present disclosure, the connection mode between the auxiliary sleeve 3 and the side of the main sleeve 1 is a gradually tightened triangular design, that is, the enclosed area 5 is a triangle, the base of the triangle is about 3 cm long, and the two sides are about 7 cm long. The auxiliary sleeve 3 is connected to the main sleeve 1 through the two sides of the triangle, but does not intersect at the vertices of the two sides, leaving an opening. Due to its triangular connection design, the auxiliary sleeve 3 is loose inside and tight outside, thereby achieving the effect of tight windproof at the front and loose and comfortable at the back, thereby improving the comfort of the user.

[0056] In one embodiment of the present disclosure, part of the edge of the liner 2 is configured to participate in forming the enclosed area 5, and the part of the liner 2 participating in forming the enclosed area 5 is configured to be connected to the inner wall of the main sleeve 1. Figure 2 The part of the liner 2 that participates in forming the enclosed area 5 is recorded as the enclosed portion 20. Since the liner 2 is a cylindrical structure and the auxiliary sleeve 3 is an unclosed cylindrical structure, the free end of the liner 2 cannot be completely connected to the first end of the auxiliary sleeve 3, thereby forming the enclosed portion 20 that participates in forming the enclosed area 5. The enclosed portion 20 is connected to the inner wall of the main sleeve 1, for example, by sewing, so that the main sleeve 1 and the liner 2 are linked, and the main sleeve 1 can limit the movement of the liner 2 to prevent the liner 2 from moving in the main sleeve 1.

[0057] In one embodiment of the present disclosure, reference Figure 2 , the second end of the auxiliary sleeve 3 is constructed not to exceed the cuff of the main sleeve 1. The cuff of the auxiliary sleeve 3 is slightly shorter than the inside of the main sleeve 1, and because the two side edges of the auxiliary sleeve 3 are sewn and connected to the main sleeve 1, and the bottom of the auxiliary sleeve 3 is sewn and connected to the liner 2, the linkage between the auxiliary sleeve 3 and the main sleeve 1 is strong. Different from the auxiliary sleeve exceeding the cuff of the main sleeve in the prior art, the hand can be retracted into the cuff at any time when feeling cold, which is more convenient; in addition, due to the existence of the auxiliary sleeve 3, its sealing performance is good, when the cold wind is strong, the cold wind is not easy to enter the sleeve, thereby improving the warmth retention of the down jacket.

[0058] In one embodiment of the present disclosure, reference Figure 2 The main sleeve 1 includes a surface layer 101 and an inner layer 102 located inside the surface layer 101; the auxiliary sleeve 3 is connected to the inner wall of the inner layer 102. Due to the non-enclosed structure of the auxiliary sleeve 3, the two side edges of the auxiliary sleeve 3 are sewn on the inner layer 102, and the main sleeve 1 can directly limit the movement of the auxiliary sleeve 3 to avoid the user's hand feeling restrained due to the high tightness of the auxiliary sleeve 3. The surface layer 101 is the outermost layer of the windproof sleeve and can be made of windproof material to play a role in windproof and cold protection. In addition, since the part of the liner 2 that participates in forming the enclosed area 5 is constructed to be connected to the inner layer 102, the inner layer 102 plays a role in connecting the liner 2 and the auxiliary sleeve 3.

[0059] According to the second aspect of the present disclosure, Figure 5 The present disclosure also provides a windproof down jacket, which includes: a windproof down jacket body and windproof sleeves. The specific structure and effect of the windproof sleeves are referred to above and will not be repeated here. The down jacket body mainly includes a body, windproof sleeves arranged on both sides of the body, and pockets can be arranged on the inner and outer sides of the body. In addition, the down jacket body can also be provided with other basic structures well known to those skilled in the art, and the present disclosure does not limit this.

[0060] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the marketplace, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims

1. A windproof sleeve for a windproof down jacket, characterized in that: include: Main sleeve (1); An inner liner (2), wherein the inner liner (2) is sleeved in the main sleeve (1); A secondary sleeve (3), the secondary sleeve (3) is sleeved in the main sleeve (1), and the opposite ends of the secondary sleeve (3) are respectively marked as a first end away from the cuff and a second end adjacent to the cuff; the first end of the secondary sleeve (3) is configured to be connected to the free end of the liner (2), and a partial area of ​​the side wall of the secondary sleeve (3) is configured to be connected to the inner wall of the main sleeve (1).

2. The windproof sleeve according to claim 1, characterized in that: The inner liner (2) is constructed to be cylindrical, and the first end of the auxiliary sleeve (3) is constructed to be connected to the inner liner (2) along the circumferential direction of the inner liner (2).

3. The windproof sleeve according to claim 2, characterized in that: The auxiliary sleeve (3) is constructed to be a non-closed cylindrical structure, and the two side edges of the auxiliary sleeve (3) are constructed to be respectively connected to the inner wall of the main sleeve (1).

4. The windproof sleeve according to claim 3, characterized in that: In the direction from the first end to the second end, the two side edges of the auxiliary sleeve (3) are constructed to extend obliquely in a close manner to form an enclosed area (5) on the inner wall of the main sleeve (1).

5. The windproof sleeve according to claim 4, characterized in that: Part of the edge of the inner liner (2) is constructed to participate in forming the enclosed area (5); the part of the inner liner (2) participating in forming the enclosed area (5) is constructed to be connected to the inner wall of the main sleeve (1).

6. The windproof sleeve according to claim 4, characterized in that: The size of the enclosed area (5) is constructed to gradually decrease from the first end to the second end.

7. The windproof sleeve according to claim 1, characterized in that: The second end of the secondary sleeve (3) is configured not to extend beyond the cuff of the primary sleeve (1).

8. The windproof sleeve according to claim 1, characterized in that: The main sleeve (1) comprises a surface layer (101) and an inner layer (102) located inside the surface layer (101); the auxiliary sleeve (3) is connected to the inner wall of the inner layer (102).

9. The windproof sleeve according to any one of claims 1 to 8, characterized in that: The material of the secondary sleeve (3) is elastic fabric.

10. A windproof down jacket, characterized in that: include: Windproof down jacket body; A windproof sleeve according to any one of claims 1 to 9.